adding pods method of package managing

Pods/BoringSSL-GRPC/LICENSE

@@ -0,0 +1,251 @@
+BoringSSL is a fork of OpenSSL. As such, large parts of it fall under OpenSSL
+licensing. Files that are completely new have a Google copyright and an ISC
+license. This license is reproduced at the bottom of this file.
+
+Contributors to BoringSSL are required to follow the CLA rules for Chromium:
+https://cla.developers.google.com/clas
+
+Files in third_party/ have their own licenses, as described therein. The MIT
+license, for third_party/fiat, which, unlike other third_party directories, is
+compiled into non-test libraries, is included below.
+
+The OpenSSL toolkit stays under a dual license, i.e. both the conditions of the
+OpenSSL License and the original SSLeay license apply to the toolkit. See below
+for the actual license texts. Actually both licenses are BSD-style Open Source
+licenses. In case of any license issues related to OpenSSL please contact
+[email protected].
+
+The following are Google-internal bug numbers where explicit permission from
+some authors is recorded for use of their work. (This is purely for our own
+record keeping.)
+  27287199
+  27287880
+  27287883
+
+  OpenSSL License
+  ---------------
+
+/* ====================================================================
+ * Copyright (c) 1998-2011 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    [email protected].
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * ([email protected]).  This product includes software written by Tim
+ * Hudson ([email protected]).
+ *
+ */
+
+ Original SSLeay License
+ -----------------------
+
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+
+ISC license used for completely new code in BoringSSL:
+
+/* Copyright (c) 2015, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+
+The code in third_party/fiat carries the MIT license:
+
+Copyright (c) 2015-2016 the fiat-crypto authors (see
+https://github.com/mit-plv/fiat-crypto/blob/master/AUTHORS).
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+Licenses for support code
+-------------------------
+
+Parts of the TLS test suite are under the Go license. This code is not included
+in BoringSSL (i.e. libcrypto and libssl) when compiled, however, so
+distributing code linked against BoringSSL does not trigger this license:
+
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+BoringSSL uses the Chromium test infrastructure to run a continuous build,
+trybots etc. The scripts which manage this, and the script for generating build
+metadata, are under the Chromium license. Distributing code linked against
+BoringSSL does not trigger this license.
+
+Copyright 2015 The Chromium Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Pods/BoringSSL-GRPC/src/crypto/asn1/a_bitstr.c

@@ -0,0 +1,271 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "../internal.h"
+
+
+int ASN1_BIT_STRING_set(ASN1_BIT_STRING *x, unsigned char *d, int len)
+{
+    return M_ASN1_BIT_STRING_set(x, d, len);
+}
+
+int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp)
+{
+    int ret, j, bits, len;
+    unsigned char *p, *d;
+
+    if (a == NULL)
+        return (0);
+
+    len = a->length;
+
+    if (len > 0) {
+        if (a->flags & ASN1_STRING_FLAG_BITS_LEFT) {
+            bits = (int)a->flags & 0x07;
+        } else {
+            for (; len > 0; len--) {
+                if (a->data[len - 1])
+                    break;
+            }
+            j = a->data[len - 1];
+            if (j & 0x01)
+                bits = 0;
+            else if (j & 0x02)
+                bits = 1;
+            else if (j & 0x04)
+                bits = 2;
+            else if (j & 0x08)
+                bits = 3;
+            else if (j & 0x10)
+                bits = 4;
+            else if (j & 0x20)
+                bits = 5;
+            else if (j & 0x40)
+                bits = 6;
+            else if (j & 0x80)
+                bits = 7;
+            else
+                bits = 0;       /* should not happen */
+        }
+    } else
+        bits = 0;
+
+    ret = 1 + len;
+    if (pp == NULL)
+        return (ret);
+
+    p = *pp;
+
+    *(p++) = (unsigned char)bits;
+    d = a->data;
+    OPENSSL_memcpy(p, d, len);
+    p += len;
+    if (len > 0)
+        p[-1] &= (0xff << bits);
+    *pp = p;
+    return (ret);
+}
+
+ASN1_BIT_STRING *c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a,
+                                     const unsigned char **pp, long len)
+{
+    ASN1_BIT_STRING *ret = NULL;
+    const unsigned char *p;
+    unsigned char *s;
+    int padding;
+
+    if (len < 1) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_SHORT);
+        goto err;
+    }
+
+    if (len > INT_MAX) {
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_LONG);
+      goto err;
+    }
+
+    if ((a == NULL) || ((*a) == NULL)) {
+        if ((ret = M_ASN1_BIT_STRING_new()) == NULL)
+            return (NULL);
+    } else
+        ret = (*a);
+
+    p = *pp;
+    padding = *(p++);
+    if (padding > 7) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_BIT_STRING_BITS_LEFT);
+        goto err;
+    }
+
+    /*
+     * We do this to preserve the settings.  If we modify the settings, via
+     * the _set_bit function, we will recalculate on output
+     */
+    ret->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); /* clear */
+    ret->flags |= (ASN1_STRING_FLAG_BITS_LEFT | padding); /* set */
+
+    if (len-- > 1) {            /* using one because of the bits left byte */
+        s = (unsigned char *)OPENSSL_malloc((int)len);
+        if (s == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        OPENSSL_memcpy(s, p, (int)len);
+        s[len - 1] &= (0xff << padding);
+        p += len;
+    } else
+        s = NULL;
+
+    ret->length = (int)len;
+    if (ret->data != NULL)
+        OPENSSL_free(ret->data);
+    ret->data = s;
+    ret->type = V_ASN1_BIT_STRING;
+    if (a != NULL)
+        (*a) = ret;
+    *pp = p;
+    return (ret);
+ err:
+    if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+        M_ASN1_BIT_STRING_free(ret);
+    return (NULL);
+}
+
+/*
+ * These next 2 functions from Goetz Babin-Ebell <[email protected]>
+ */
+int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value)
+{
+    int w, v, iv;
+    unsigned char *c;
+
+    w = n / 8;
+    v = 1 << (7 - (n & 0x07));
+    iv = ~v;
+    if (!value)
+        v = 0;
+
+    if (a == NULL)
+        return 0;
+
+    a->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); /* clear, set on write */
+
+    if ((a->length < (w + 1)) || (a->data == NULL)) {
+        if (!value)
+            return (1);         /* Don't need to set */
+        if (a->data == NULL)
+            c = (unsigned char *)OPENSSL_malloc(w + 1);
+        else
+            c = (unsigned char *)OPENSSL_realloc(a->data, w + 1);
+        if (c == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+        if (w + 1 - a->length > 0)
+            OPENSSL_memset(c + a->length, 0, w + 1 - a->length);
+        a->data = c;
+        a->length = w + 1;
+    }
+    a->data[w] = ((a->data[w]) & iv) | v;
+    while ((a->length > 0) && (a->data[a->length - 1] == 0))
+        a->length--;
+    return (1);
+}
+
+int ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *a, int n)
+{
+    int w, v;
+
+    w = n / 8;
+    v = 1 << (7 - (n & 0x07));
+    if ((a == NULL) || (a->length < (w + 1)) || (a->data == NULL))
+        return (0);
+    return ((a->data[w] & v) != 0);
+}
+
+/*
+ * Checks if the given bit string contains only bits specified by
+ * the flags vector. Returns 0 if there is at least one bit set in 'a'
+ * which is not specified in 'flags', 1 otherwise.
+ * 'len' is the length of 'flags'.
+ */
+int ASN1_BIT_STRING_check(ASN1_BIT_STRING *a,
+                          unsigned char *flags, int flags_len)
+{
+    int i, ok;
+    /* Check if there is one bit set at all. */
+    if (!a || !a->data)
+        return 1;
+
+    /*
+     * Check each byte of the internal representation of the bit string.
+     */
+    ok = 1;
+    for (i = 0; i < a->length && ok; ++i) {
+        unsigned char mask = i < flags_len ? ~flags[i] : 0xff;
+        /* We are done if there is an unneeded bit set. */
+        ok = (a->data[i] & mask) == 0;
+    }
+    return ok;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_bitstr.c.grpc_back

@@ -0,0 +1,271 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "../internal.h"
+
+
+int ASN1_BIT_STRING_set(ASN1_BIT_STRING *x, unsigned char *d, int len)
+{
+    return M_ASN1_BIT_STRING_set(x, d, len);
+}
+
+int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp)
+{
+    int ret, j, bits, len;
+    unsigned char *p, *d;
+
+    if (a == NULL)
+        return (0);
+
+    len = a->length;
+
+    if (len > 0) {
+        if (a->flags & ASN1_STRING_FLAG_BITS_LEFT) {
+            bits = (int)a->flags & 0x07;
+        } else {
+            for (; len > 0; len--) {
+                if (a->data[len - 1])
+                    break;
+            }
+            j = a->data[len - 1];
+            if (j & 0x01)
+                bits = 0;
+            else if (j & 0x02)
+                bits = 1;
+            else if (j & 0x04)
+                bits = 2;
+            else if (j & 0x08)
+                bits = 3;
+            else if (j & 0x10)
+                bits = 4;
+            else if (j & 0x20)
+                bits = 5;
+            else if (j & 0x40)
+                bits = 6;
+            else if (j & 0x80)
+                bits = 7;
+            else
+                bits = 0;       /* should not happen */
+        }
+    } else
+        bits = 0;
+
+    ret = 1 + len;
+    if (pp == NULL)
+        return (ret);
+
+    p = *pp;
+
+    *(p++) = (unsigned char)bits;
+    d = a->data;
+    OPENSSL_memcpy(p, d, len);
+    p += len;
+    if (len > 0)
+        p[-1] &= (0xff << bits);
+    *pp = p;
+    return (ret);
+}
+
+ASN1_BIT_STRING *c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a,
+                                     const unsigned char **pp, long len)
+{
+    ASN1_BIT_STRING *ret = NULL;
+    const unsigned char *p;
+    unsigned char *s;
+    int padding;
+
+    if (len < 1) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_SHORT);
+        goto err;
+    }
+
+    if (len > INT_MAX) {
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_LONG);
+      goto err;
+    }
+
+    if ((a == NULL) || ((*a) == NULL)) {
+        if ((ret = M_ASN1_BIT_STRING_new()) == NULL)
+            return (NULL);
+    } else
+        ret = (*a);
+
+    p = *pp;
+    padding = *(p++);
+    if (padding > 7) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_BIT_STRING_BITS_LEFT);
+        goto err;
+    }
+
+    /*
+     * We do this to preserve the settings.  If we modify the settings, via
+     * the _set_bit function, we will recalculate on output
+     */
+    ret->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); /* clear */
+    ret->flags |= (ASN1_STRING_FLAG_BITS_LEFT | padding); /* set */
+
+    if (len-- > 1) {            /* using one because of the bits left byte */
+        s = (unsigned char *)OPENSSL_malloc((int)len);
+        if (s == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        OPENSSL_memcpy(s, p, (int)len);
+        s[len - 1] &= (0xff << padding);
+        p += len;
+    } else
+        s = NULL;
+
+    ret->length = (int)len;
+    if (ret->data != NULL)
+        OPENSSL_free(ret->data);
+    ret->data = s;
+    ret->type = V_ASN1_BIT_STRING;
+    if (a != NULL)
+        (*a) = ret;
+    *pp = p;
+    return (ret);
+ err:
+    if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+        M_ASN1_BIT_STRING_free(ret);
+    return (NULL);
+}
+
+/*
+ * These next 2 functions from Goetz Babin-Ebell <[email protected]>
+ */
+int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value)
+{
+    int w, v, iv;
+    unsigned char *c;
+
+    w = n / 8;
+    v = 1 << (7 - (n & 0x07));
+    iv = ~v;
+    if (!value)
+        v = 0;
+
+    if (a == NULL)
+        return 0;
+
+    a->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); /* clear, set on write */
+
+    if ((a->length < (w + 1)) || (a->data == NULL)) {
+        if (!value)
+            return (1);         /* Don't need to set */
+        if (a->data == NULL)
+            c = (unsigned char *)OPENSSL_malloc(w + 1);
+        else
+            c = (unsigned char *)OPENSSL_realloc(a->data, w + 1);
+        if (c == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+        if (w + 1 - a->length > 0)
+            OPENSSL_memset(c + a->length, 0, w + 1 - a->length);
+        a->data = c;
+        a->length = w + 1;
+    }
+    a->data[w] = ((a->data[w]) & iv) | v;
+    while ((a->length > 0) && (a->data[a->length - 1] == 0))
+        a->length--;
+    return (1);
+}
+
+int ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *a, int n)
+{
+    int w, v;
+
+    w = n / 8;
+    v = 1 << (7 - (n & 0x07));
+    if ((a == NULL) || (a->length < (w + 1)) || (a->data == NULL))
+        return (0);
+    return ((a->data[w] & v) != 0);
+}
+
+/*
+ * Checks if the given bit string contains only bits specified by
+ * the flags vector. Returns 0 if there is at least one bit set in 'a'
+ * which is not specified in 'flags', 1 otherwise.
+ * 'len' is the length of 'flags'.
+ */
+int ASN1_BIT_STRING_check(ASN1_BIT_STRING *a,
+                          unsigned char *flags, int flags_len)
+{
+    int i, ok;
+    /* Check if there is one bit set at all. */
+    if (!a || !a->data)
+        return 1;
+
+    /*
+     * Check each byte of the internal representation of the bit string.
+     */
+    ok = 1;
+    for (i = 0; i < a->length && ok; ++i) {
+        unsigned char mask = i < flags_len ? ~flags[i] : 0xff;
+        /* We are done if there is an unneeded bit set. */
+        ok = (a->data[i] & mask) == 0;
+    }
+    return ok;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_bool.c

@@ -0,0 +1,123 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+int i2d_ASN1_BOOLEAN(int a, unsigned char **pp)
+{
+    int r;
+    unsigned char *p, *allocated = NULL;
+
+    r = ASN1_object_size(0, 1, V_ASN1_BOOLEAN);
+    if (pp == NULL)
+        return (r);
+
+    if (*pp == NULL) {
+        if ((p = allocated = OPENSSL_malloc(r)) == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+    } else {
+        p = *pp;
+    }
+
+    ASN1_put_object(&p, 0, 1, V_ASN1_BOOLEAN, V_ASN1_UNIVERSAL);
+    *p = (unsigned char)a;
+
+    /*
+     * If a new buffer was allocated, just return it back.
+     * If not, return the incremented buffer pointer.
+     */
+    *pp = allocated != NULL ? allocated : p + 1;
+    return r;
+}
+
+int d2i_ASN1_BOOLEAN(int *a, const unsigned char **pp, long length)
+{
+    int ret = -1;
+    const unsigned char *p;
+    long len;
+    int inf, tag, xclass;
+    int i = 0;
+
+    p = *pp;
+    inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
+    if (inf & 0x80) {
+        i = ASN1_R_BAD_OBJECT_HEADER;
+        goto err;
+    }
+
+    if (tag != V_ASN1_BOOLEAN) {
+        i = ASN1_R_EXPECTING_A_BOOLEAN;
+        goto err;
+    }
+
+    if (len != 1) {
+        i = ASN1_R_BOOLEAN_IS_WRONG_LENGTH;
+        goto err;
+    }
+    ret = (int)*(p++);
+    if (a != NULL)
+        (*a) = ret;
+    *pp = p;
+    return (ret);
+ err:
+    OPENSSL_PUT_ERROR(ASN1, i);
+    return (ret);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_bool.c.grpc_back

@@ -0,0 +1,123 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+int i2d_ASN1_BOOLEAN(int a, unsigned char **pp)
+{
+    int r;
+    unsigned char *p, *allocated = NULL;
+
+    r = ASN1_object_size(0, 1, V_ASN1_BOOLEAN);
+    if (pp == NULL)
+        return (r);
+
+    if (*pp == NULL) {
+        if ((p = allocated = OPENSSL_malloc(r)) == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+    } else {
+        p = *pp;
+    }
+
+    ASN1_put_object(&p, 0, 1, V_ASN1_BOOLEAN, V_ASN1_UNIVERSAL);
+    *p = (unsigned char)a;
+
+    /*
+     * If a new buffer was allocated, just return it back.
+     * If not, return the incremented buffer pointer.
+     */
+    *pp = allocated != NULL ? allocated : p + 1;
+    return r;
+}
+
+int d2i_ASN1_BOOLEAN(int *a, const unsigned char **pp, long length)
+{
+    int ret = -1;
+    const unsigned char *p;
+    long len;
+    int inf, tag, xclass;
+    int i = 0;
+
+    p = *pp;
+    inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
+    if (inf & 0x80) {
+        i = ASN1_R_BAD_OBJECT_HEADER;
+        goto err;
+    }
+
+    if (tag != V_ASN1_BOOLEAN) {
+        i = ASN1_R_EXPECTING_A_BOOLEAN;
+        goto err;
+    }
+
+    if (len != 1) {
+        i = ASN1_R_BOOLEAN_IS_WRONG_LENGTH;
+        goto err;
+    }
+    ret = (int)*(p++);
+    if (a != NULL)
+        (*a) = ret;
+    *pp = p;
+    return (ret);
+ err:
+    OPENSSL_PUT_ERROR(ASN1, i);
+    return (ret);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_d2i_fp.c

@@ -0,0 +1,93 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <limits.h>
+
+#include <openssl_grpc/bio.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+
+void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *x)
+{
+    uint8_t *data;
+    size_t len;
+    // Historically, this function did not impose a limit in OpenSSL and is used
+    // to read CRLs, so we leave this without an external bound.
+    if (!BIO_read_asn1(in, &data, &len, INT_MAX)) {
+        return NULL;
+    }
+    const uint8_t *ptr = data;
+    void *ret = ASN1_item_d2i(x, &ptr, len, it);
+    OPENSSL_free(data);
+    return ret;
+}
+
+#ifndef OPENSSL_NO_FP_API
+void *ASN1_item_d2i_fp(const ASN1_ITEM *it, FILE *in, void *x)
+{
+    BIO *b = BIO_new_fp(in, BIO_NOCLOSE);
+    if (b == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_BUF_LIB);
+        return NULL;
+    }
+    void *ret = ASN1_item_d2i_bio(it, b, x);
+    BIO_free(b);
+    return ret;
+}
+#endif

Pods/BoringSSL-GRPC/src/crypto/asn1/a_d2i_fp.c.grpc_back

@@ -0,0 +1,93 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <limits.h>
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+
+void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *x)
+{
+    uint8_t *data;
+    size_t len;
+    // Historically, this function did not impose a limit in OpenSSL and is used
+    // to read CRLs, so we leave this without an external bound.
+    if (!BIO_read_asn1(in, &data, &len, INT_MAX)) {
+        return NULL;
+    }
+    const uint8_t *ptr = data;
+    void *ret = ASN1_item_d2i(x, &ptr, len, it);
+    OPENSSL_free(data);
+    return ret;
+}
+
+#ifndef OPENSSL_NO_FP_API
+void *ASN1_item_d2i_fp(const ASN1_ITEM *it, FILE *in, void *x)
+{
+    BIO *b = BIO_new_fp(in, BIO_NOCLOSE);
+    if (b == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_BUF_LIB);
+        return NULL;
+    }
+    void *ret = ASN1_item_d2i_bio(it, b, x);
+    BIO_free(b);
+    return ret;
+}
+#endif

Pods/BoringSSL-GRPC/src/crypto/asn1/a_dup.c

@@ -0,0 +1,87 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+/*
+ * ASN1_ITEM version of dup: this follows the model above except we don't
+ * need to allocate the buffer. At some point this could be rewritten to
+ * directly dup the underlying structure instead of doing and encode and
+ * decode.
+ */
+void *ASN1_item_dup(const ASN1_ITEM *it, void *x)
+{
+    unsigned char *b = NULL;
+    const unsigned char *p;
+    long i;
+    void *ret;
+
+    if (x == NULL)
+        return (NULL);
+
+    i = ASN1_item_i2d(x, &b, it);
+    if (b == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return (NULL);
+    }
+    p = b;
+    ret = ASN1_item_d2i(NULL, &p, i, it);
+    OPENSSL_free(b);
+    return (ret);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_dup.c.grpc_back

@@ -0,0 +1,87 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+/*
+ * ASN1_ITEM version of dup: this follows the model above except we don't
+ * need to allocate the buffer. At some point this could be rewritten to
+ * directly dup the underlying structure instead of doing and encode and
+ * decode.
+ */
+void *ASN1_item_dup(const ASN1_ITEM *it, void *x)
+{
+    unsigned char *b = NULL;
+    const unsigned char *p;
+    long i;
+    void *ret;
+
+    if (x == NULL)
+        return (NULL);
+
+    i = ASN1_item_i2d(x, &b, it);
+    if (b == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return (NULL);
+    }
+    p = b;
+    ret = ASN1_item_d2i(NULL, &p, i, it);
+    OPENSSL_free(b);
+    return (ret);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_enum.c

@@ -0,0 +1,195 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "../internal.h"
+
+
+/*
+ * Code for ENUMERATED type: identical to INTEGER apart from a different tag.
+ * for comments on encoding see a_int.c
+ */
+
+int ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v)
+{
+    int j, k;
+    unsigned int i;
+    unsigned char buf[sizeof(long) + 1];
+    long d;
+
+    a->type = V_ASN1_ENUMERATED;
+    if (a->length < (int)(sizeof(long) + 1)) {
+        if (a->data != NULL)
+            OPENSSL_free(a->data);
+        if ((a->data =
+             (unsigned char *)OPENSSL_malloc(sizeof(long) + 1)) != NULL)
+            OPENSSL_memset((char *)a->data, 0, sizeof(long) + 1);
+    }
+    if (a->data == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return (0);
+    }
+    d = v;
+    if (d < 0) {
+        d = -d;
+        a->type = V_ASN1_NEG_ENUMERATED;
+    }
+
+    for (i = 0; i < sizeof(long); i++) {
+        if (d == 0)
+            break;
+        buf[i] = (int)d & 0xff;
+        d >>= 8;
+    }
+    j = 0;
+    for (k = i - 1; k >= 0; k--)
+        a->data[j++] = buf[k];
+    a->length = j;
+    return (1);
+}
+
+long ASN1_ENUMERATED_get(ASN1_ENUMERATED *a)
+{
+    int neg = 0, i;
+
+    if (a == NULL)
+        return (0L);
+    i = a->type;
+    if (i == V_ASN1_NEG_ENUMERATED)
+        neg = 1;
+    else if (i != V_ASN1_ENUMERATED)
+        return -1;
+
+    OPENSSL_STATIC_ASSERT(sizeof(uint64_t) >= sizeof(long),
+                          "long larger than uint64_t");
+
+    if (a->length > (int)sizeof(uint64_t)) {
+        /* hmm... a bit ugly */
+        return -1;
+    }
+
+    uint64_t r64 = 0;
+    if (a->data != NULL) {
+      for (i = 0; i < a->length; i++) {
+          r64 <<= 8;
+          r64 |= (unsigned char)a->data[i];
+      }
+
+      if (r64 > LONG_MAX) {
+          return -1;
+      }
+    }
+
+    long r = (long) r64;
+    if (neg)
+        r = -r;
+
+    return r;
+}
+
+ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(BIGNUM *bn, ASN1_ENUMERATED *ai)
+{
+    ASN1_ENUMERATED *ret;
+    int len, j;
+
+    if (ai == NULL)
+        ret = M_ASN1_ENUMERATED_new();
+    else
+        ret = ai;
+    if (ret == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_NESTED_ASN1_ERROR);
+        goto err;
+    }
+    if (BN_is_negative(bn))
+        ret->type = V_ASN1_NEG_ENUMERATED;
+    else
+        ret->type = V_ASN1_ENUMERATED;
+    j = BN_num_bits(bn);
+    len = ((j == 0) ? 0 : ((j / 8) + 1));
+    if (ret->length < len + 4) {
+        unsigned char *new_data = OPENSSL_realloc(ret->data, len + 4);
+        if (!new_data) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        ret->data = new_data;
+    }
+
+    ret->length = BN_bn2bin(bn, ret->data);
+    return (ret);
+ err:
+    if (ret != ai)
+        M_ASN1_ENUMERATED_free(ret);
+    return (NULL);
+}
+
+BIGNUM *ASN1_ENUMERATED_to_BN(ASN1_ENUMERATED *ai, BIGNUM *bn)
+{
+    BIGNUM *ret;
+
+    if ((ret = BN_bin2bn(ai->data, ai->length, bn)) == NULL)
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_BN_LIB);
+    else if (ai->type == V_ASN1_NEG_ENUMERATED)
+        BN_set_negative(ret, 1);
+    return (ret);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_enum.c.grpc_back

@@ -0,0 +1,195 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "../internal.h"
+
+
+/*
+ * Code for ENUMERATED type: identical to INTEGER apart from a different tag.
+ * for comments on encoding see a_int.c
+ */
+
+int ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v)
+{
+    int j, k;
+    unsigned int i;
+    unsigned char buf[sizeof(long) + 1];
+    long d;
+
+    a->type = V_ASN1_ENUMERATED;
+    if (a->length < (int)(sizeof(long) + 1)) {
+        if (a->data != NULL)
+            OPENSSL_free(a->data);
+        if ((a->data =
+             (unsigned char *)OPENSSL_malloc(sizeof(long) + 1)) != NULL)
+            OPENSSL_memset((char *)a->data, 0, sizeof(long) + 1);
+    }
+    if (a->data == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return (0);
+    }
+    d = v;
+    if (d < 0) {
+        d = -d;
+        a->type = V_ASN1_NEG_ENUMERATED;
+    }
+
+    for (i = 0; i < sizeof(long); i++) {
+        if (d == 0)
+            break;
+        buf[i] = (int)d & 0xff;
+        d >>= 8;
+    }
+    j = 0;
+    for (k = i - 1; k >= 0; k--)
+        a->data[j++] = buf[k];
+    a->length = j;
+    return (1);
+}
+
+long ASN1_ENUMERATED_get(ASN1_ENUMERATED *a)
+{
+    int neg = 0, i;
+
+    if (a == NULL)
+        return (0L);
+    i = a->type;
+    if (i == V_ASN1_NEG_ENUMERATED)
+        neg = 1;
+    else if (i != V_ASN1_ENUMERATED)
+        return -1;
+
+    OPENSSL_STATIC_ASSERT(sizeof(uint64_t) >= sizeof(long),
+                          "long larger than uint64_t");
+
+    if (a->length > (int)sizeof(uint64_t)) {
+        /* hmm... a bit ugly */
+        return -1;
+    }
+
+    uint64_t r64 = 0;
+    if (a->data != NULL) {
+      for (i = 0; i < a->length; i++) {
+          r64 <<= 8;
+          r64 |= (unsigned char)a->data[i];
+      }
+
+      if (r64 > LONG_MAX) {
+          return -1;
+      }
+    }
+
+    long r = (long) r64;
+    if (neg)
+        r = -r;
+
+    return r;
+}
+
+ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(BIGNUM *bn, ASN1_ENUMERATED *ai)
+{
+    ASN1_ENUMERATED *ret;
+    int len, j;
+
+    if (ai == NULL)
+        ret = M_ASN1_ENUMERATED_new();
+    else
+        ret = ai;
+    if (ret == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_NESTED_ASN1_ERROR);
+        goto err;
+    }
+    if (BN_is_negative(bn))
+        ret->type = V_ASN1_NEG_ENUMERATED;
+    else
+        ret->type = V_ASN1_ENUMERATED;
+    j = BN_num_bits(bn);
+    len = ((j == 0) ? 0 : ((j / 8) + 1));
+    if (ret->length < len + 4) {
+        unsigned char *new_data = OPENSSL_realloc(ret->data, len + 4);
+        if (!new_data) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        ret->data = new_data;
+    }
+
+    ret->length = BN_bn2bin(bn, ret->data);
+    return (ret);
+ err:
+    if (ret != ai)
+        M_ASN1_ENUMERATED_free(ret);
+    return (NULL);
+}
+
+BIGNUM *ASN1_ENUMERATED_to_BN(ASN1_ENUMERATED *ai, BIGNUM *bn)
+{
+    BIGNUM *ret;
+
+    if ((ret = BN_bin2bn(ai->data, ai->length, bn)) == NULL)
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_BN_LIB);
+    else if (ai->type == V_ASN1_NEG_ENUMERATED)
+        BN_set_negative(ret, 1);
+    return (ret);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_gentm.c

@@ -0,0 +1,261 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <string.h>
+#include <time.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "asn1_locl.h"
+
+int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d)
+{
+    static const int min[9] = { 0, 0, 1, 1, 0, 0, 0, 0, 0 };
+    static const int max[9] = { 99, 99, 12, 31, 23, 59, 59, 12, 59 };
+    char *a;
+    int n, i, l, o;
+
+    if (d->type != V_ASN1_GENERALIZEDTIME)
+        return (0);
+    l = d->length;
+    a = (char *)d->data;
+    o = 0;
+    /*
+     * GENERALIZEDTIME is similar to UTCTIME except the year is represented
+     * as YYYY. This stuff treats everything as a two digit field so make
+     * first two fields 00 to 99
+     */
+    if (l < 13)
+        goto err;
+    for (i = 0; i < 7; i++) {
+        if ((i == 6) && ((a[o] == 'Z') || (a[o] == '+') || (a[o] == '-'))) {
+            i++;
+            if (tm)
+                tm->tm_sec = 0;
+            break;
+        }
+        if ((a[o] < '0') || (a[o] > '9'))
+            goto err;
+        n = a[o] - '0';
+        if (++o > l)
+            goto err;
+
+        if ((a[o] < '0') || (a[o] > '9'))
+            goto err;
+        n = (n * 10) + a[o] - '0';
+        if (++o > l)
+            goto err;
+
+        if ((n < min[i]) || (n > max[i]))
+            goto err;
+        if (tm) {
+            switch (i) {
+            case 0:
+                tm->tm_year = n * 100 - 1900;
+                break;
+            case 1:
+                tm->tm_year += n;
+                break;
+            case 2:
+                tm->tm_mon = n - 1;
+                break;
+            case 3:
+                tm->tm_mday = n;
+                break;
+            case 4:
+                tm->tm_hour = n;
+                break;
+            case 5:
+                tm->tm_min = n;
+                break;
+            case 6:
+                tm->tm_sec = n;
+                break;
+            }
+        }
+    }
+    /*
+     * Optional fractional seconds: decimal point followed by one or more
+     * digits.
+     */
+    if (a[o] == '.') {
+        if (++o > l)
+            goto err;
+        i = o;
+        while ((a[o] >= '0') && (a[o] <= '9') && (o <= l))
+            o++;
+        /* Must have at least one digit after decimal point */
+        if (i == o)
+            goto err;
+    }
+
+    if (a[o] == 'Z')
+        o++;
+    else if ((a[o] == '+') || (a[o] == '-')) {
+        int offsign = a[o] == '-' ? 1 : -1, offset = 0;
+        o++;
+        if (o + 4 > l)
+            goto err;
+        for (i = 7; i < 9; i++) {
+            if ((a[o] < '0') || (a[o] > '9'))
+                goto err;
+            n = a[o] - '0';
+            o++;
+            if ((a[o] < '0') || (a[o] > '9'))
+                goto err;
+            n = (n * 10) + a[o] - '0';
+            if ((n < min[i]) || (n > max[i]))
+                goto err;
+            if (tm) {
+                if (i == 7)
+                    offset = n * 3600;
+                else if (i == 8)
+                    offset += n * 60;
+            }
+            o++;
+        }
+        if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign))
+            return 0;
+    } else if (a[o]) {
+        /* Missing time zone information. */
+        goto err;
+    }
+    return (o == l);
+ err:
+    return (0);
+}
+
+int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d)
+{
+    return asn1_generalizedtime_to_tm(NULL, d);
+}
+
+int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
+{
+    ASN1_GENERALIZEDTIME t;
+
+    t.type = V_ASN1_GENERALIZEDTIME;
+    t.length = strlen(str);
+    t.data = (unsigned char *)str;
+    if (ASN1_GENERALIZEDTIME_check(&t)) {
+        if (s != NULL) {
+            if (!ASN1_STRING_set((ASN1_STRING *)s,
+                                 (unsigned char *)str, t.length))
+                return 0;
+            s->type = V_ASN1_GENERALIZEDTIME;
+        }
+        return (1);
+    } else
+        return (0);
+}
+
+ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
+                                               time_t t)
+{
+    return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0);
+}
+
+ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
+                                               time_t t, int offset_day,
+                                               long offset_sec)
+{
+    char *p;
+    struct tm *ts;
+    struct tm data;
+    size_t len = 20;
+    ASN1_GENERALIZEDTIME *tmps = NULL;
+
+    if (s == NULL)
+        tmps = ASN1_GENERALIZEDTIME_new();
+    else
+        tmps = s;
+    if (tmps == NULL)
+        return NULL;
+
+    ts = OPENSSL_gmtime(&t, &data);
+    if (ts == NULL)
+        goto err;
+
+    if (offset_day || offset_sec) {
+        if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
+            goto err;
+    }
+
+    p = (char *)tmps->data;
+    if ((p == NULL) || ((size_t)tmps->length < len)) {
+        p = OPENSSL_malloc(len);
+        if (p == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        OPENSSL_free(tmps->data);
+        tmps->data = (unsigned char *)p;
+    }
+
+    BIO_snprintf(p, len, "%04d%02d%02d%02d%02d%02dZ", ts->tm_year + 1900,
+                 ts->tm_mon + 1, ts->tm_mday, ts->tm_hour, ts->tm_min,
+                 ts->tm_sec);
+    tmps->length = strlen(p);
+    tmps->type = V_ASN1_GENERALIZEDTIME;
+    return tmps;
+ err:
+    if (s == NULL)
+        ASN1_GENERALIZEDTIME_free(tmps);
+    return NULL;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_gentm.c.grpc_back

@@ -0,0 +1,261 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <string.h>
+#include <time.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "asn1_locl.h"
+
+int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d)
+{
+    static const int min[9] = { 0, 0, 1, 1, 0, 0, 0, 0, 0 };
+    static const int max[9] = { 99, 99, 12, 31, 23, 59, 59, 12, 59 };
+    char *a;
+    int n, i, l, o;
+
+    if (d->type != V_ASN1_GENERALIZEDTIME)
+        return (0);
+    l = d->length;
+    a = (char *)d->data;
+    o = 0;
+    /*
+     * GENERALIZEDTIME is similar to UTCTIME except the year is represented
+     * as YYYY. This stuff treats everything as a two digit field so make
+     * first two fields 00 to 99
+     */
+    if (l < 13)
+        goto err;
+    for (i = 0; i < 7; i++) {
+        if ((i == 6) && ((a[o] == 'Z') || (a[o] == '+') || (a[o] == '-'))) {
+            i++;
+            if (tm)
+                tm->tm_sec = 0;
+            break;
+        }
+        if ((a[o] < '0') || (a[o] > '9'))
+            goto err;
+        n = a[o] - '0';
+        if (++o > l)
+            goto err;
+
+        if ((a[o] < '0') || (a[o] > '9'))
+            goto err;
+        n = (n * 10) + a[o] - '0';
+        if (++o > l)
+            goto err;
+
+        if ((n < min[i]) || (n > max[i]))
+            goto err;
+        if (tm) {
+            switch (i) {
+            case 0:
+                tm->tm_year = n * 100 - 1900;
+                break;
+            case 1:
+                tm->tm_year += n;
+                break;
+            case 2:
+                tm->tm_mon = n - 1;
+                break;
+            case 3:
+                tm->tm_mday = n;
+                break;
+            case 4:
+                tm->tm_hour = n;
+                break;
+            case 5:
+                tm->tm_min = n;
+                break;
+            case 6:
+                tm->tm_sec = n;
+                break;
+            }
+        }
+    }
+    /*
+     * Optional fractional seconds: decimal point followed by one or more
+     * digits.
+     */
+    if (a[o] == '.') {
+        if (++o > l)
+            goto err;
+        i = o;
+        while ((a[o] >= '0') && (a[o] <= '9') && (o <= l))
+            o++;
+        /* Must have at least one digit after decimal point */
+        if (i == o)
+            goto err;
+    }
+
+    if (a[o] == 'Z')
+        o++;
+    else if ((a[o] == '+') || (a[o] == '-')) {
+        int offsign = a[o] == '-' ? 1 : -1, offset = 0;
+        o++;
+        if (o + 4 > l)
+            goto err;
+        for (i = 7; i < 9; i++) {
+            if ((a[o] < '0') || (a[o] > '9'))
+                goto err;
+            n = a[o] - '0';
+            o++;
+            if ((a[o] < '0') || (a[o] > '9'))
+                goto err;
+            n = (n * 10) + a[o] - '0';
+            if ((n < min[i]) || (n > max[i]))
+                goto err;
+            if (tm) {
+                if (i == 7)
+                    offset = n * 3600;
+                else if (i == 8)
+                    offset += n * 60;
+            }
+            o++;
+        }
+        if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign))
+            return 0;
+    } else if (a[o]) {
+        /* Missing time zone information. */
+        goto err;
+    }
+    return (o == l);
+ err:
+    return (0);
+}
+
+int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d)
+{
+    return asn1_generalizedtime_to_tm(NULL, d);
+}
+
+int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
+{
+    ASN1_GENERALIZEDTIME t;
+
+    t.type = V_ASN1_GENERALIZEDTIME;
+    t.length = strlen(str);
+    t.data = (unsigned char *)str;
+    if (ASN1_GENERALIZEDTIME_check(&t)) {
+        if (s != NULL) {
+            if (!ASN1_STRING_set((ASN1_STRING *)s,
+                                 (unsigned char *)str, t.length))
+                return 0;
+            s->type = V_ASN1_GENERALIZEDTIME;
+        }
+        return (1);
+    } else
+        return (0);
+}
+
+ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
+                                               time_t t)
+{
+    return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0);
+}
+
+ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
+                                               time_t t, int offset_day,
+                                               long offset_sec)
+{
+    char *p;
+    struct tm *ts;
+    struct tm data;
+    size_t len = 20;
+    ASN1_GENERALIZEDTIME *tmps = NULL;
+
+    if (s == NULL)
+        tmps = ASN1_GENERALIZEDTIME_new();
+    else
+        tmps = s;
+    if (tmps == NULL)
+        return NULL;
+
+    ts = OPENSSL_gmtime(&t, &data);
+    if (ts == NULL)
+        goto err;
+
+    if (offset_day || offset_sec) {
+        if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
+            goto err;
+    }
+
+    p = (char *)tmps->data;
+    if ((p == NULL) || ((size_t)tmps->length < len)) {
+        p = OPENSSL_malloc(len);
+        if (p == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        OPENSSL_free(tmps->data);
+        tmps->data = (unsigned char *)p;
+    }
+
+    BIO_snprintf(p, len, "%04d%02d%02d%02d%02d%02dZ", ts->tm_year + 1900,
+                 ts->tm_mon + 1, ts->tm_mday, ts->tm_hour, ts->tm_min,
+                 ts->tm_sec);
+    tmps->length = strlen(p);
+    tmps->type = V_ASN1_GENERALIZEDTIME;
+    return tmps;
+ err:
+    if (s == NULL)
+        ASN1_GENERALIZEDTIME_free(tmps);
+    return NULL;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_i2d_fp.c

@@ -0,0 +1,88 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/bio.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+
+int ASN1_item_i2d_fp(const ASN1_ITEM *it, FILE *out, void *x)
+{
+    BIO *b = BIO_new_fp(out, BIO_NOCLOSE);
+    if (b == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_BUF_LIB);
+        return 0;
+    }
+    int ret = ASN1_item_i2d_bio(it, b, x);
+    BIO_free(b);
+    return ret;
+}
+
+int ASN1_item_i2d_bio(const ASN1_ITEM *it, BIO *out, void *x)
+{
+    unsigned char *b = NULL;
+    int n = ASN1_item_i2d(x, &b, it);
+    if (b == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+
+    int ret = BIO_write_all(out, b, n);
+    OPENSSL_free(b);
+    return ret;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_i2d_fp.c.grpc_back

@@ -0,0 +1,88 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+
+int ASN1_item_i2d_fp(const ASN1_ITEM *it, FILE *out, void *x)
+{
+    BIO *b = BIO_new_fp(out, BIO_NOCLOSE);
+    if (b == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_BUF_LIB);
+        return 0;
+    }
+    int ret = ASN1_item_i2d_bio(it, b, x);
+    BIO_free(b);
+    return ret;
+}
+
+int ASN1_item_i2d_bio(const ASN1_ITEM *it, BIO *out, void *x)
+{
+    unsigned char *b = NULL;
+    int n = ASN1_item_i2d(x, &b, it);
+    if (b == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+
+    int ret = BIO_write_all(out, b, n);
+    OPENSSL_free(b);
+    return ret;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_int.c

@@ -0,0 +1,420 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <string.h>
+#include <limits.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "../internal.h"
+
+
+ASN1_INTEGER *ASN1_INTEGER_dup(const ASN1_INTEGER *x)
+{
+    return M_ASN1_INTEGER_dup(x);
+}
+
+int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y)
+{
+    int neg, ret;
+    /* Compare signs */
+    neg = x->type & V_ASN1_NEG;
+    if (neg != (y->type & V_ASN1_NEG)) {
+        if (neg)
+            return -1;
+        else
+            return 1;
+    }
+
+    ret = ASN1_STRING_cmp(x, y);
+
+    if (neg)
+        return -ret;
+    else
+        return ret;
+}
+
+/*
+ * This converts an ASN1 INTEGER into its content encoding.
+ * The internal representation is an ASN1_STRING whose data is a big endian
+ * representation of the value, ignoring the sign. The sign is determined by
+ * the type: V_ASN1_INTEGER for positive and V_ASN1_NEG_INTEGER for negative.
+ *
+ * Positive integers are no problem: they are almost the same as the DER
+ * encoding, except if the first byte is >= 0x80 we need to add a zero pad.
+ *
+ * Negative integers are a bit trickier...
+ * The DER representation of negative integers is in 2s complement form.
+ * The internal form is converted by complementing each octet and finally
+ * adding one to the result. This can be done less messily with a little trick.
+ * If the internal form has trailing zeroes then they will become FF by the
+ * complement and 0 by the add one (due to carry) so just copy as many trailing
+ * zeros to the destination as there are in the source. The carry will add one
+ * to the last none zero octet: so complement this octet and add one and finally
+ * complement any left over until you get to the start of the string.
+ *
+ * Padding is a little trickier too. If the first bytes is > 0x80 then we pad
+ * with 0xff. However if the first byte is 0x80 and one of the following bytes
+ * is non-zero we pad with 0xff. The reason for this distinction is that 0x80
+ * followed by optional zeros isn't padded.
+ */
+
+int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
+{
+    int pad = 0, ret, i, neg;
+    unsigned char *p, *n, pb = 0;
+
+    if (a == NULL)
+        return (0);
+    neg = a->type & V_ASN1_NEG;
+    if (a->length == 0)
+        ret = 1;
+    else {
+        ret = a->length;
+        i = a->data[0];
+        if (ret == 1 && i == 0)
+            neg = 0;
+        if (!neg && (i > 127)) {
+            pad = 1;
+            pb = 0;
+        } else if (neg) {
+            if (i > 128) {
+                pad = 1;
+                pb = 0xFF;
+            } else if (i == 128) {
+                /*
+                 * Special case: if any other bytes non zero we pad:
+                 * otherwise we don't.
+                 */
+                for (i = 1; i < a->length; i++)
+                    if (a->data[i]) {
+                        pad = 1;
+                        pb = 0xFF;
+                        break;
+                    }
+            }
+        }
+        ret += pad;
+    }
+    if (pp == NULL)
+        return (ret);
+    p = *pp;
+
+    if (pad)
+        *(p++) = pb;
+    if (a->length == 0)
+        *(p++) = 0;
+    else if (!neg)
+        OPENSSL_memcpy(p, a->data, (unsigned int)a->length);
+    else {
+        /* Begin at the end of the encoding */
+        n = a->data + a->length - 1;
+        p += a->length - 1;
+        i = a->length;
+        /* Copy zeros to destination as long as source is zero */
+        while (!*n && i > 1) {
+            *(p--) = 0;
+            n--;
+            i--;
+        }
+        /* Complement and increment next octet */
+        *(p--) = ((*(n--)) ^ 0xff) + 1;
+        i--;
+        /* Complement any octets left */
+        for (; i > 0; i--)
+            *(p--) = *(n--) ^ 0xff;
+    }
+
+    *pp += ret;
+    return (ret);
+}
+
+/* Convert just ASN1 INTEGER content octets to ASN1_INTEGER structure */
+
+ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
+                               long len)
+{
+    ASN1_INTEGER *ret = NULL;
+    const unsigned char *p, *pend;
+    unsigned char *to, *s;
+    int i;
+
+    /*
+     * This function can handle lengths up to INT_MAX - 1, but the rest of the
+     * legacy ASN.1 code mixes integer types, so avoid exposing it to
+     * ASN1_INTEGERS with larger lengths.
+     */
+    if (len < 0 || len > INT_MAX / 2) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_TOO_LONG);
+        return NULL;
+    }
+
+    if ((a == NULL) || ((*a) == NULL)) {
+        if ((ret = M_ASN1_INTEGER_new()) == NULL)
+            return (NULL);
+        ret->type = V_ASN1_INTEGER;
+    } else
+        ret = (*a);
+
+    p = *pp;
+    pend = p + len;
+
+    /*
+     * We must OPENSSL_malloc stuff, even for 0 bytes otherwise it signifies
+     * a missing NULL parameter.
+     */
+    s = (unsigned char *)OPENSSL_malloc((int)len + 1);
+    if (s == NULL) {
+        i = ERR_R_MALLOC_FAILURE;
+        goto err;
+    }
+    to = s;
+    if (!len) {
+        /*
+         * Strictly speaking this is an illegal INTEGER but we tolerate it.
+         */
+        ret->type = V_ASN1_INTEGER;
+    } else if (*p & 0x80) {     /* a negative number */
+        ret->type = V_ASN1_NEG_INTEGER;
+        if ((*p == 0xff) && (len != 1)) {
+            p++;
+            len--;
+        }
+        i = len;
+        p += i - 1;
+        to += i - 1;
+        while ((!*p) && i) {
+            *(to--) = 0;
+            i--;
+            p--;
+        }
+        /*
+         * Special case: if all zeros then the number will be of the form FF
+         * followed by n zero bytes: this corresponds to 1 followed by n zero
+         * bytes. We've already written n zeros so we just append an extra
+         * one and set the first byte to a 1. This is treated separately
+         * because it is the only case where the number of bytes is larger
+         * than len.
+         */
+        if (!i) {
+            *s = 1;
+            s[len] = 0;
+            len++;
+        } else {
+            *(to--) = (*(p--) ^ 0xff) + 1;
+            i--;
+            for (; i > 0; i--)
+                *(to--) = *(p--) ^ 0xff;
+        }
+    } else {
+        ret->type = V_ASN1_INTEGER;
+        if ((*p == 0) && (len != 1)) {
+            p++;
+            len--;
+        }
+        OPENSSL_memcpy(s, p, (int)len);
+    }
+
+    if (ret->data != NULL)
+        OPENSSL_free(ret->data);
+    ret->data = s;
+    ret->length = (int)len;
+    if (a != NULL)
+        (*a) = ret;
+    *pp = pend;
+    return (ret);
+ err:
+    OPENSSL_PUT_ERROR(ASN1, i);
+    if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+        M_ASN1_INTEGER_free(ret);
+    return (NULL);
+}
+
+int ASN1_INTEGER_set(ASN1_INTEGER *a, long v)
+{
+    if (v >= 0) {
+        return ASN1_INTEGER_set_uint64(a, (uint64_t) v);
+    }
+
+    if (!ASN1_INTEGER_set_uint64(a, 0 - (uint64_t) v)) {
+        return 0;
+    }
+
+    a->type = V_ASN1_NEG_INTEGER;
+    return 1;
+}
+
+int ASN1_INTEGER_set_uint64(ASN1_INTEGER *out, uint64_t v)
+{
+    uint8_t *const newdata = OPENSSL_malloc(sizeof(uint64_t));
+    if (newdata == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+
+    OPENSSL_free(out->data);
+    out->data = newdata;
+    v = CRYPTO_bswap8(v);
+    memcpy(out->data, &v, sizeof(v));
+
+    out->type = V_ASN1_INTEGER;
+
+    size_t leading_zeros;
+    for (leading_zeros = 0; leading_zeros < sizeof(uint64_t) - 1;
+         leading_zeros++) {
+        if (out->data[leading_zeros] != 0) {
+            break;
+        }
+    }
+
+    out->length = sizeof(uint64_t) - leading_zeros;
+    OPENSSL_memmove(out->data, out->data + leading_zeros, out->length);
+
+    return 1;
+}
+
+long ASN1_INTEGER_get(const ASN1_INTEGER *a)
+{
+    int neg = 0, i;
+
+    if (a == NULL)
+        return (0L);
+    i = a->type;
+    if (i == V_ASN1_NEG_INTEGER)
+        neg = 1;
+    else if (i != V_ASN1_INTEGER)
+        return -1;
+
+    OPENSSL_STATIC_ASSERT(sizeof(uint64_t) >= sizeof(long),
+                          "long larger than uint64_t");
+
+    if (a->length > (int)sizeof(uint64_t)) {
+        /* hmm... a bit ugly, return all ones */
+        return -1;
+    }
+
+    uint64_t r64 = 0;
+    if (a->data != NULL) {
+      for (i = 0; i < a->length; i++) {
+          r64 <<= 8;
+          r64 |= (unsigned char)a->data[i];
+      }
+
+      if (r64 > LONG_MAX) {
+          return -1;
+      }
+    }
+
+    long r = (long) r64;
+    if (neg)
+        r = -r;
+
+    return r;
+}
+
+ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai)
+{
+    ASN1_INTEGER *ret;
+    int len, j;
+
+    if (ai == NULL)
+        ret = M_ASN1_INTEGER_new();
+    else
+        ret = ai;
+    if (ret == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_NESTED_ASN1_ERROR);
+        goto err;
+    }
+    if (BN_is_negative(bn) && !BN_is_zero(bn))
+        ret->type = V_ASN1_NEG_INTEGER;
+    else
+        ret->type = V_ASN1_INTEGER;
+    j = BN_num_bits(bn);
+    len = ((j == 0) ? 0 : ((j / 8) + 1));
+    if (ret->length < len + 4) {
+        unsigned char *new_data = OPENSSL_realloc(ret->data, len + 4);
+        if (!new_data) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        ret->data = new_data;
+    }
+    ret->length = BN_bn2bin(bn, ret->data);
+    /* Correct zero case */
+    if (!ret->length) {
+        ret->data[0] = 0;
+        ret->length = 1;
+    }
+    return (ret);
+ err:
+    if (ret != ai)
+        M_ASN1_INTEGER_free(ret);
+    return (NULL);
+}
+
+BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn)
+{
+    BIGNUM *ret;
+
+    if ((ret = BN_bin2bn(ai->data, ai->length, bn)) == NULL)
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_BN_LIB);
+    else if (ai->type == V_ASN1_NEG_INTEGER)
+        BN_set_negative(ret, 1);
+    return (ret);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_int.c.grpc_back

@@ -0,0 +1,420 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <string.h>
+#include <limits.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "../internal.h"
+
+
+ASN1_INTEGER *ASN1_INTEGER_dup(const ASN1_INTEGER *x)
+{
+    return M_ASN1_INTEGER_dup(x);
+}
+
+int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y)
+{
+    int neg, ret;
+    /* Compare signs */
+    neg = x->type & V_ASN1_NEG;
+    if (neg != (y->type & V_ASN1_NEG)) {
+        if (neg)
+            return -1;
+        else
+            return 1;
+    }
+
+    ret = ASN1_STRING_cmp(x, y);
+
+    if (neg)
+        return -ret;
+    else
+        return ret;
+}
+
+/*
+ * This converts an ASN1 INTEGER into its content encoding.
+ * The internal representation is an ASN1_STRING whose data is a big endian
+ * representation of the value, ignoring the sign. The sign is determined by
+ * the type: V_ASN1_INTEGER for positive and V_ASN1_NEG_INTEGER for negative.
+ *
+ * Positive integers are no problem: they are almost the same as the DER
+ * encoding, except if the first byte is >= 0x80 we need to add a zero pad.
+ *
+ * Negative integers are a bit trickier...
+ * The DER representation of negative integers is in 2s complement form.
+ * The internal form is converted by complementing each octet and finally
+ * adding one to the result. This can be done less messily with a little trick.
+ * If the internal form has trailing zeroes then they will become FF by the
+ * complement and 0 by the add one (due to carry) so just copy as many trailing
+ * zeros to the destination as there are in the source. The carry will add one
+ * to the last none zero octet: so complement this octet and add one and finally
+ * complement any left over until you get to the start of the string.
+ *
+ * Padding is a little trickier too. If the first bytes is > 0x80 then we pad
+ * with 0xff. However if the first byte is 0x80 and one of the following bytes
+ * is non-zero we pad with 0xff. The reason for this distinction is that 0x80
+ * followed by optional zeros isn't padded.
+ */
+
+int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
+{
+    int pad = 0, ret, i, neg;
+    unsigned char *p, *n, pb = 0;
+
+    if (a == NULL)
+        return (0);
+    neg = a->type & V_ASN1_NEG;
+    if (a->length == 0)
+        ret = 1;
+    else {
+        ret = a->length;
+        i = a->data[0];
+        if (ret == 1 && i == 0)
+            neg = 0;
+        if (!neg && (i > 127)) {
+            pad = 1;
+            pb = 0;
+        } else if (neg) {
+            if (i > 128) {
+                pad = 1;
+                pb = 0xFF;
+            } else if (i == 128) {
+                /*
+                 * Special case: if any other bytes non zero we pad:
+                 * otherwise we don't.
+                 */
+                for (i = 1; i < a->length; i++)
+                    if (a->data[i]) {
+                        pad = 1;
+                        pb = 0xFF;
+                        break;
+                    }
+            }
+        }
+        ret += pad;
+    }
+    if (pp == NULL)
+        return (ret);
+    p = *pp;
+
+    if (pad)
+        *(p++) = pb;
+    if (a->length == 0)
+        *(p++) = 0;
+    else if (!neg)
+        OPENSSL_memcpy(p, a->data, (unsigned int)a->length);
+    else {
+        /* Begin at the end of the encoding */
+        n = a->data + a->length - 1;
+        p += a->length - 1;
+        i = a->length;
+        /* Copy zeros to destination as long as source is zero */
+        while (!*n && i > 1) {
+            *(p--) = 0;
+            n--;
+            i--;
+        }
+        /* Complement and increment next octet */
+        *(p--) = ((*(n--)) ^ 0xff) + 1;
+        i--;
+        /* Complement any octets left */
+        for (; i > 0; i--)
+            *(p--) = *(n--) ^ 0xff;
+    }
+
+    *pp += ret;
+    return (ret);
+}
+
+/* Convert just ASN1 INTEGER content octets to ASN1_INTEGER structure */
+
+ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
+                               long len)
+{
+    ASN1_INTEGER *ret = NULL;
+    const unsigned char *p, *pend;
+    unsigned char *to, *s;
+    int i;
+
+    /*
+     * This function can handle lengths up to INT_MAX - 1, but the rest of the
+     * legacy ASN.1 code mixes integer types, so avoid exposing it to
+     * ASN1_INTEGERS with larger lengths.
+     */
+    if (len < 0 || len > INT_MAX / 2) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_TOO_LONG);
+        return NULL;
+    }
+
+    if ((a == NULL) || ((*a) == NULL)) {
+        if ((ret = M_ASN1_INTEGER_new()) == NULL)
+            return (NULL);
+        ret->type = V_ASN1_INTEGER;
+    } else
+        ret = (*a);
+
+    p = *pp;
+    pend = p + len;
+
+    /*
+     * We must OPENSSL_malloc stuff, even for 0 bytes otherwise it signifies
+     * a missing NULL parameter.
+     */
+    s = (unsigned char *)OPENSSL_malloc((int)len + 1);
+    if (s == NULL) {
+        i = ERR_R_MALLOC_FAILURE;
+        goto err;
+    }
+    to = s;
+    if (!len) {
+        /*
+         * Strictly speaking this is an illegal INTEGER but we tolerate it.
+         */
+        ret->type = V_ASN1_INTEGER;
+    } else if (*p & 0x80) {     /* a negative number */
+        ret->type = V_ASN1_NEG_INTEGER;
+        if ((*p == 0xff) && (len != 1)) {
+            p++;
+            len--;
+        }
+        i = len;
+        p += i - 1;
+        to += i - 1;
+        while ((!*p) && i) {
+            *(to--) = 0;
+            i--;
+            p--;
+        }
+        /*
+         * Special case: if all zeros then the number will be of the form FF
+         * followed by n zero bytes: this corresponds to 1 followed by n zero
+         * bytes. We've already written n zeros so we just append an extra
+         * one and set the first byte to a 1. This is treated separately
+         * because it is the only case where the number of bytes is larger
+         * than len.
+         */
+        if (!i) {
+            *s = 1;
+            s[len] = 0;
+            len++;
+        } else {
+            *(to--) = (*(p--) ^ 0xff) + 1;
+            i--;
+            for (; i > 0; i--)
+                *(to--) = *(p--) ^ 0xff;
+        }
+    } else {
+        ret->type = V_ASN1_INTEGER;
+        if ((*p == 0) && (len != 1)) {
+            p++;
+            len--;
+        }
+        OPENSSL_memcpy(s, p, (int)len);
+    }
+
+    if (ret->data != NULL)
+        OPENSSL_free(ret->data);
+    ret->data = s;
+    ret->length = (int)len;
+    if (a != NULL)
+        (*a) = ret;
+    *pp = pend;
+    return (ret);
+ err:
+    OPENSSL_PUT_ERROR(ASN1, i);
+    if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+        M_ASN1_INTEGER_free(ret);
+    return (NULL);
+}
+
+int ASN1_INTEGER_set(ASN1_INTEGER *a, long v)
+{
+    if (v >= 0) {
+        return ASN1_INTEGER_set_uint64(a, (uint64_t) v);
+    }
+
+    if (!ASN1_INTEGER_set_uint64(a, 0 - (uint64_t) v)) {
+        return 0;
+    }
+
+    a->type = V_ASN1_NEG_INTEGER;
+    return 1;
+}
+
+int ASN1_INTEGER_set_uint64(ASN1_INTEGER *out, uint64_t v)
+{
+    uint8_t *const newdata = OPENSSL_malloc(sizeof(uint64_t));
+    if (newdata == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+
+    OPENSSL_free(out->data);
+    out->data = newdata;
+    v = CRYPTO_bswap8(v);
+    memcpy(out->data, &v, sizeof(v));
+
+    out->type = V_ASN1_INTEGER;
+
+    size_t leading_zeros;
+    for (leading_zeros = 0; leading_zeros < sizeof(uint64_t) - 1;
+         leading_zeros++) {
+        if (out->data[leading_zeros] != 0) {
+            break;
+        }
+    }
+
+    out->length = sizeof(uint64_t) - leading_zeros;
+    OPENSSL_memmove(out->data, out->data + leading_zeros, out->length);
+
+    return 1;
+}
+
+long ASN1_INTEGER_get(const ASN1_INTEGER *a)
+{
+    int neg = 0, i;
+
+    if (a == NULL)
+        return (0L);
+    i = a->type;
+    if (i == V_ASN1_NEG_INTEGER)
+        neg = 1;
+    else if (i != V_ASN1_INTEGER)
+        return -1;
+
+    OPENSSL_STATIC_ASSERT(sizeof(uint64_t) >= sizeof(long),
+                          "long larger than uint64_t");
+
+    if (a->length > (int)sizeof(uint64_t)) {
+        /* hmm... a bit ugly, return all ones */
+        return -1;
+    }
+
+    uint64_t r64 = 0;
+    if (a->data != NULL) {
+      for (i = 0; i < a->length; i++) {
+          r64 <<= 8;
+          r64 |= (unsigned char)a->data[i];
+      }
+
+      if (r64 > LONG_MAX) {
+          return -1;
+      }
+    }
+
+    long r = (long) r64;
+    if (neg)
+        r = -r;
+
+    return r;
+}
+
+ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai)
+{
+    ASN1_INTEGER *ret;
+    int len, j;
+
+    if (ai == NULL)
+        ret = M_ASN1_INTEGER_new();
+    else
+        ret = ai;
+    if (ret == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_NESTED_ASN1_ERROR);
+        goto err;
+    }
+    if (BN_is_negative(bn) && !BN_is_zero(bn))
+        ret->type = V_ASN1_NEG_INTEGER;
+    else
+        ret->type = V_ASN1_INTEGER;
+    j = BN_num_bits(bn);
+    len = ((j == 0) ? 0 : ((j / 8) + 1));
+    if (ret->length < len + 4) {
+        unsigned char *new_data = OPENSSL_realloc(ret->data, len + 4);
+        if (!new_data) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        ret->data = new_data;
+    }
+    ret->length = BN_bn2bin(bn, ret->data);
+    /* Correct zero case */
+    if (!ret->length) {
+        ret->data[0] = 0;
+        ret->length = 1;
+    }
+    return (ret);
+ err:
+    if (ret != ai)
+        M_ASN1_INTEGER_free(ret);
+    return (NULL);
+}
+
+BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn)
+{
+    BIGNUM *ret;
+
+    if ((ret = BN_bin2bn(ai->data, ai->length, bn)) == NULL)
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_BN_LIB);
+    else if (ai->type == V_ASN1_NEG_INTEGER)
+        BN_set_negative(ret, 1);
+    return (ret);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_mbstr.c

@@ -0,0 +1,305 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/bytestring.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "asn1_locl.h"
+#include "../bytestring/internal.h"
+
+static int is_printable(uint32_t value);
+
+/*
+ * These functions take a string in UTF8, ASCII or multibyte form and a mask
+ * of permissible ASN1 string types. It then works out the minimal type
+ * (using the order Printable < IA5 < T61 < BMP < Universal < UTF8) and
+ * creates a string of the correct type with the supplied data. Yes this is
+ * horrible: it has to be :-( The 'ncopy' form checks minimum and maximum
+ * size limits too.
+ */
+
+int ASN1_mbstring_copy(ASN1_STRING **out, const unsigned char *in, int len,
+                       int inform, unsigned long mask)
+{
+    return ASN1_mbstring_ncopy(out, in, len, inform, mask, 0, 0);
+}
+
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_BMPSTRING)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_UNIVERSALSTRING)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_UTF8STRING)
+
+int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len,
+                        int inform, unsigned long mask,
+                        long minsize, long maxsize)
+{
+    int str_type;
+    char free_out;
+    ASN1_STRING *dest;
+    size_t nchar = 0;
+    char strbuf[32];
+    if (len == -1)
+        len = strlen((const char *)in);
+    if (!mask)
+        mask = DIRSTRING_TYPE;
+
+    int (*decode_func)(CBS *, uint32_t*);
+    int error;
+    switch (inform) {
+    case MBSTRING_BMP:
+        decode_func = cbs_get_ucs2_be;
+        error = ASN1_R_INVALID_BMPSTRING;
+        break;
+
+    case MBSTRING_UNIV:
+        decode_func = cbs_get_utf32_be;
+        error = ASN1_R_INVALID_UNIVERSALSTRING;
+        break;
+
+    case MBSTRING_UTF8:
+        decode_func = cbs_get_utf8;
+        error = ASN1_R_INVALID_UTF8STRING;
+        break;
+
+    case MBSTRING_ASC:
+        decode_func = cbs_get_latin1;
+        error = ERR_R_INTERNAL_ERROR;  // Latin-1 inputs are never invalid.
+        break;
+
+    default:
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNKNOWN_FORMAT);
+        return -1;
+    }
+
+    /* Check |minsize| and |maxsize| and work out the minimal type, if any. */
+    CBS cbs;
+    CBS_init(&cbs, in, len);
+    size_t utf8_len = 0;
+    while (CBS_len(&cbs) != 0) {
+        uint32_t c;
+        if (!decode_func(&cbs, &c)) {
+            OPENSSL_PUT_ERROR(ASN1, error);
+            return -1;
+        }
+        if (nchar == 0 &&
+            (inform == MBSTRING_BMP || inform == MBSTRING_UNIV) &&
+            c == 0xfeff) {
+            /* Reject byte-order mark. We could drop it but that would mean
+             * adding ambiguity around whether a BOM was included or not when
+             * matching strings.
+             *
+             * For a little-endian UCS-2 string, the BOM will appear as 0xfffe
+             * and will be rejected as noncharacter, below. */
+            OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_CHARACTERS);
+            return -1;
+        }
+
+        /* Update which output formats are still possible. */
+        if ((mask & B_ASN1_PRINTABLESTRING) && !is_printable(c)) {
+            mask &= ~B_ASN1_PRINTABLESTRING;
+        }
+        if ((mask & B_ASN1_IA5STRING) && (c > 127)) {
+            mask &= ~B_ASN1_IA5STRING;
+        }
+        if ((mask & B_ASN1_T61STRING) && (c > 0xff)) {
+            mask &= ~B_ASN1_T61STRING;
+        }
+        if ((mask & B_ASN1_BMPSTRING) && (c > 0xffff)) {
+            mask &= ~B_ASN1_BMPSTRING;
+        }
+        if (!mask) {
+            OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_CHARACTERS);
+            return -1;
+        }
+
+        nchar++;
+        utf8_len += cbb_get_utf8_len(c);
+    }
+
+    if (minsize > 0 && nchar < (size_t)minsize) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_SHORT);
+        BIO_snprintf(strbuf, sizeof strbuf, "%ld", minsize);
+        ERR_add_error_data(2, "minsize=", strbuf);
+        return -1;
+    }
+
+    if (maxsize > 0 && nchar > (size_t)maxsize) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_LONG);
+        BIO_snprintf(strbuf, sizeof strbuf, "%ld", maxsize);
+        ERR_add_error_data(2, "maxsize=", strbuf);
+        return -1;
+    }
+
+    /* Now work out output format and string type */
+    int (*encode_func)(CBB *, uint32_t) = cbb_add_latin1;
+    size_t size_estimate = nchar;
+    int outform = MBSTRING_ASC;
+    if (mask & B_ASN1_PRINTABLESTRING) {
+        str_type = V_ASN1_PRINTABLESTRING;
+    } else if (mask & B_ASN1_IA5STRING) {
+        str_type = V_ASN1_IA5STRING;
+    } else if (mask & B_ASN1_T61STRING) {
+        str_type = V_ASN1_T61STRING;
+    } else if (mask & B_ASN1_BMPSTRING) {
+        str_type = V_ASN1_BMPSTRING;
+        outform = MBSTRING_BMP;
+        encode_func = cbb_add_ucs2_be;
+        size_estimate = 2 * nchar;
+    } else if (mask & B_ASN1_UNIVERSALSTRING) {
+        str_type = V_ASN1_UNIVERSALSTRING;
+        encode_func = cbb_add_utf32_be;
+        size_estimate = 4 * nchar;
+        outform = MBSTRING_UNIV;
+    } else {
+        str_type = V_ASN1_UTF8STRING;
+        outform = MBSTRING_UTF8;
+        encode_func = cbb_add_utf8;
+        size_estimate = utf8_len;
+    }
+
+    if (!out)
+        return str_type;
+    if (*out) {
+        free_out = 0;
+        dest = *out;
+        if (dest->data) {
+            dest->length = 0;
+            OPENSSL_free(dest->data);
+            dest->data = NULL;
+        }
+        dest->type = str_type;
+    } else {
+        free_out = 1;
+        dest = ASN1_STRING_type_new(str_type);
+        if (!dest) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return -1;
+        }
+        *out = dest;
+    }
+
+    /* If both the same type just copy across */
+    if (inform == outform) {
+        if (!ASN1_STRING_set(dest, in, len)) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return -1;
+        }
+        return str_type;
+    }
+
+    CBB cbb;
+    if (!CBB_init(&cbb, size_estimate + 1)) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+    CBS_init(&cbs, in, len);
+    while (CBS_len(&cbs) != 0) {
+        uint32_t c;
+        if (!decode_func(&cbs, &c) ||
+            !encode_func(&cbb, c)) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_INTERNAL_ERROR);
+            goto err;
+        }
+    }
+    uint8_t *data = NULL;
+    size_t data_len;
+    if (/* OpenSSL historically NUL-terminated this value with a single byte,
+         * even for |MBSTRING_BMP| and |MBSTRING_UNIV|. */
+        !CBB_add_u8(&cbb, 0) ||
+        !CBB_finish(&cbb, &data, &data_len) ||
+        data_len < 1 ||
+        data_len > INT_MAX) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_INTERNAL_ERROR);
+        OPENSSL_free(data);
+        goto err;
+    }
+    dest->length = (int)(data_len - 1);
+    dest->data = data;
+    return str_type;
+
+ err:
+    if (free_out)
+        ASN1_STRING_free(dest);
+    CBB_cleanup(&cbb);
+    return -1;
+}
+
+/* Return 1 if the character is permitted in a PrintableString */
+static int is_printable(uint32_t value)
+{
+    int ch;
+    if (value > 0x7f)
+        return 0;
+    ch = (int)value;
+    /*
+     * Note: we can't use 'isalnum' because certain accented characters may
+     * count as alphanumeric in some environments.
+     */
+    if ((ch >= 'a') && (ch <= 'z'))
+        return 1;
+    if ((ch >= 'A') && (ch <= 'Z'))
+        return 1;
+    if ((ch >= '0') && (ch <= '9'))
+        return 1;
+    if ((ch == ' ') || strchr("'()+,-./:=?", ch))
+        return 1;
+    return 0;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_mbstr.c.grpc_back

@@ -0,0 +1,305 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/bytestring.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "asn1_locl.h"
+#include "../bytestring/internal.h"
+
+static int is_printable(uint32_t value);
+
+/*
+ * These functions take a string in UTF8, ASCII or multibyte form and a mask
+ * of permissible ASN1 string types. It then works out the minimal type
+ * (using the order Printable < IA5 < T61 < BMP < Universal < UTF8) and
+ * creates a string of the correct type with the supplied data. Yes this is
+ * horrible: it has to be :-( The 'ncopy' form checks minimum and maximum
+ * size limits too.
+ */
+
+int ASN1_mbstring_copy(ASN1_STRING **out, const unsigned char *in, int len,
+                       int inform, unsigned long mask)
+{
+    return ASN1_mbstring_ncopy(out, in, len, inform, mask, 0, 0);
+}
+
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_BMPSTRING)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_UNIVERSALSTRING)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_UTF8STRING)
+
+int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len,
+                        int inform, unsigned long mask,
+                        long minsize, long maxsize)
+{
+    int str_type;
+    char free_out;
+    ASN1_STRING *dest;
+    size_t nchar = 0;
+    char strbuf[32];
+    if (len == -1)
+        len = strlen((const char *)in);
+    if (!mask)
+        mask = DIRSTRING_TYPE;
+
+    int (*decode_func)(CBS *, uint32_t*);
+    int error;
+    switch (inform) {
+    case MBSTRING_BMP:
+        decode_func = cbs_get_ucs2_be;
+        error = ASN1_R_INVALID_BMPSTRING;
+        break;
+
+    case MBSTRING_UNIV:
+        decode_func = cbs_get_utf32_be;
+        error = ASN1_R_INVALID_UNIVERSALSTRING;
+        break;
+
+    case MBSTRING_UTF8:
+        decode_func = cbs_get_utf8;
+        error = ASN1_R_INVALID_UTF8STRING;
+        break;
+
+    case MBSTRING_ASC:
+        decode_func = cbs_get_latin1;
+        error = ERR_R_INTERNAL_ERROR;  // Latin-1 inputs are never invalid.
+        break;
+
+    default:
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNKNOWN_FORMAT);
+        return -1;
+    }
+
+    /* Check |minsize| and |maxsize| and work out the minimal type, if any. */
+    CBS cbs;
+    CBS_init(&cbs, in, len);
+    size_t utf8_len = 0;
+    while (CBS_len(&cbs) != 0) {
+        uint32_t c;
+        if (!decode_func(&cbs, &c)) {
+            OPENSSL_PUT_ERROR(ASN1, error);
+            return -1;
+        }
+        if (nchar == 0 &&
+            (inform == MBSTRING_BMP || inform == MBSTRING_UNIV) &&
+            c == 0xfeff) {
+            /* Reject byte-order mark. We could drop it but that would mean
+             * adding ambiguity around whether a BOM was included or not when
+             * matching strings.
+             *
+             * For a little-endian UCS-2 string, the BOM will appear as 0xfffe
+             * and will be rejected as noncharacter, below. */
+            OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_CHARACTERS);
+            return -1;
+        }
+
+        /* Update which output formats are still possible. */
+        if ((mask & B_ASN1_PRINTABLESTRING) && !is_printable(c)) {
+            mask &= ~B_ASN1_PRINTABLESTRING;
+        }
+        if ((mask & B_ASN1_IA5STRING) && (c > 127)) {
+            mask &= ~B_ASN1_IA5STRING;
+        }
+        if ((mask & B_ASN1_T61STRING) && (c > 0xff)) {
+            mask &= ~B_ASN1_T61STRING;
+        }
+        if ((mask & B_ASN1_BMPSTRING) && (c > 0xffff)) {
+            mask &= ~B_ASN1_BMPSTRING;
+        }
+        if (!mask) {
+            OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_CHARACTERS);
+            return -1;
+        }
+
+        nchar++;
+        utf8_len += cbb_get_utf8_len(c);
+    }
+
+    if (minsize > 0 && nchar < (size_t)minsize) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_SHORT);
+        BIO_snprintf(strbuf, sizeof strbuf, "%ld", minsize);
+        ERR_add_error_data(2, "minsize=", strbuf);
+        return -1;
+    }
+
+    if (maxsize > 0 && nchar > (size_t)maxsize) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_STRING_TOO_LONG);
+        BIO_snprintf(strbuf, sizeof strbuf, "%ld", maxsize);
+        ERR_add_error_data(2, "maxsize=", strbuf);
+        return -1;
+    }
+
+    /* Now work out output format and string type */
+    int (*encode_func)(CBB *, uint32_t) = cbb_add_latin1;
+    size_t size_estimate = nchar;
+    int outform = MBSTRING_ASC;
+    if (mask & B_ASN1_PRINTABLESTRING) {
+        str_type = V_ASN1_PRINTABLESTRING;
+    } else if (mask & B_ASN1_IA5STRING) {
+        str_type = V_ASN1_IA5STRING;
+    } else if (mask & B_ASN1_T61STRING) {
+        str_type = V_ASN1_T61STRING;
+    } else if (mask & B_ASN1_BMPSTRING) {
+        str_type = V_ASN1_BMPSTRING;
+        outform = MBSTRING_BMP;
+        encode_func = cbb_add_ucs2_be;
+        size_estimate = 2 * nchar;
+    } else if (mask & B_ASN1_UNIVERSALSTRING) {
+        str_type = V_ASN1_UNIVERSALSTRING;
+        encode_func = cbb_add_utf32_be;
+        size_estimate = 4 * nchar;
+        outform = MBSTRING_UNIV;
+    } else {
+        str_type = V_ASN1_UTF8STRING;
+        outform = MBSTRING_UTF8;
+        encode_func = cbb_add_utf8;
+        size_estimate = utf8_len;
+    }
+
+    if (!out)
+        return str_type;
+    if (*out) {
+        free_out = 0;
+        dest = *out;
+        if (dest->data) {
+            dest->length = 0;
+            OPENSSL_free(dest->data);
+            dest->data = NULL;
+        }
+        dest->type = str_type;
+    } else {
+        free_out = 1;
+        dest = ASN1_STRING_type_new(str_type);
+        if (!dest) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return -1;
+        }
+        *out = dest;
+    }
+
+    /* If both the same type just copy across */
+    if (inform == outform) {
+        if (!ASN1_STRING_set(dest, in, len)) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return -1;
+        }
+        return str_type;
+    }
+
+    CBB cbb;
+    if (!CBB_init(&cbb, size_estimate + 1)) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+    CBS_init(&cbs, in, len);
+    while (CBS_len(&cbs) != 0) {
+        uint32_t c;
+        if (!decode_func(&cbs, &c) ||
+            !encode_func(&cbb, c)) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_INTERNAL_ERROR);
+            goto err;
+        }
+    }
+    uint8_t *data = NULL;
+    size_t data_len;
+    if (/* OpenSSL historically NUL-terminated this value with a single byte,
+         * even for |MBSTRING_BMP| and |MBSTRING_UNIV|. */
+        !CBB_add_u8(&cbb, 0) ||
+        !CBB_finish(&cbb, &data, &data_len) ||
+        data_len < 1 ||
+        data_len > INT_MAX) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_INTERNAL_ERROR);
+        OPENSSL_free(data);
+        goto err;
+    }
+    dest->length = (int)(data_len - 1);
+    dest->data = data;
+    return str_type;
+
+ err:
+    if (free_out)
+        ASN1_STRING_free(dest);
+    CBB_cleanup(&cbb);
+    return -1;
+}
+
+/* Return 1 if the character is permitted in a PrintableString */
+static int is_printable(uint32_t value)
+{
+    int ch;
+    if (value > 0x7f)
+        return 0;
+    ch = (int)value;
+    /*
+     * Note: we can't use 'isalnum' because certain accented characters may
+     * count as alphanumeric in some environments.
+     */
+    if ((ch >= 'a') && (ch <= 'z'))
+        return 1;
+    if ((ch >= 'A') && (ch <= 'Z'))
+        return 1;
+    if ((ch >= '0') && (ch <= '9'))
+        return 1;
+    if ((ch == ' ') || strchr("'()+,-./:=?", ch))
+        return 1;
+    return 0;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_object.c

@@ -0,0 +1,286 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+#include <openssl_grpc/obj.h>
+
+#include "../internal.h"
+
+
+int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
+{
+    unsigned char *p, *allocated = NULL;
+    int objsize;
+
+    if ((a == NULL) || (a->data == NULL))
+        return (0);
+
+    objsize = ASN1_object_size(0, a->length, V_ASN1_OBJECT);
+    if (pp == NULL || objsize == -1)
+        return objsize;
+
+    if (*pp == NULL) {
+        if ((p = allocated = OPENSSL_malloc(objsize)) == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+    } else {
+        p = *pp;
+    }
+
+    ASN1_put_object(&p, 0, a->length, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
+    OPENSSL_memcpy(p, a->data, a->length);
+
+    /*
+     * If a new buffer was allocated, just return it back.
+     * If not, return the incremented buffer pointer.
+     */
+    *pp = allocated != NULL ? allocated : p + a->length;
+    return objsize;
+}
+
+int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
+{
+    return OBJ_obj2txt(buf, buf_len, a, 0);
+}
+
+int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
+{
+    char buf[80], *p = buf;
+    int i;
+
+    if ((a == NULL) || (a->data == NULL))
+        return (BIO_write(bp, "NULL", 4));
+    i = i2t_ASN1_OBJECT(buf, sizeof buf, a);
+    if (i > (int)(sizeof(buf) - 1)) {
+        p = OPENSSL_malloc(i + 1);
+        if (!p)
+            return -1;
+        i2t_ASN1_OBJECT(p, i + 1, a);
+    }
+    if (i <= 0)
+        return BIO_write(bp, "<INVALID>", 9);
+    BIO_write(bp, p, i);
+    if (p != buf)
+        OPENSSL_free(p);
+    return (i);
+}
+
+ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
+                             long length)
+{
+    const unsigned char *p;
+    long len;
+    int tag, xclass;
+    int inf, i;
+    ASN1_OBJECT *ret = NULL;
+    p = *pp;
+    inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
+    if (inf & 0x80) {
+        i = ASN1_R_BAD_OBJECT_HEADER;
+        goto err;
+    }
+
+    if (tag != V_ASN1_OBJECT) {
+        i = ASN1_R_EXPECTING_AN_OBJECT;
+        goto err;
+    }
+    ret = c2i_ASN1_OBJECT(a, &p, len);
+    if (ret)
+        *pp = p;
+    return ret;
+ err:
+    OPENSSL_PUT_ERROR(ASN1, i);
+    return (NULL);
+}
+
+ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
+                             long len)
+{
+    ASN1_OBJECT *ret = NULL;
+    const unsigned char *p;
+    unsigned char *data;
+    int i, length;
+
+    /*
+     * Sanity check OID encoding. Need at least one content octet. MSB must
+     * be clear in the last octet. can't have leading 0x80 in subidentifiers,
+     * see: X.690 8.19.2
+     */
+    if (len <= 0 || len > INT_MAX || pp == NULL || (p = *pp) == NULL ||
+        p[len - 1] & 0x80) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_OBJECT_ENCODING);
+        return NULL;
+    }
+    /* Now 0 < len <= INT_MAX, so the cast is safe. */
+    length = (int)len;
+    for (i = 0; i < length; i++, p++) {
+        if (*p == 0x80 && (!i || !(p[-1] & 0x80))) {
+            OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_OBJECT_ENCODING);
+            return NULL;
+        }
+    }
+
+    /*
+     * only the ASN1_OBJECTs from the 'table' will have values for ->sn or
+     * ->ln
+     */
+    if ((a == NULL) || ((*a) == NULL) ||
+        !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC)) {
+        if ((ret = ASN1_OBJECT_new()) == NULL)
+            return (NULL);
+    } else
+        ret = (*a);
+
+    p = *pp;
+    /* detach data from object */
+    data = (unsigned char *)ret->data;
+    ret->data = NULL;
+    /* once detached we can change it */
+    if ((data == NULL) || (ret->length < length)) {
+        ret->length = 0;
+        if (data != NULL)
+            OPENSSL_free(data);
+        data = (unsigned char *)OPENSSL_malloc(length);
+        if (data == NULL) {
+            i = ERR_R_MALLOC_FAILURE;
+            goto err;
+        }
+        ret->flags |= ASN1_OBJECT_FLAG_DYNAMIC_DATA;
+    }
+    OPENSSL_memcpy(data, p, length);
+    /* reattach data to object, after which it remains const */
+    ret->data = data;
+    ret->length = length;
+    ret->sn = NULL;
+    ret->ln = NULL;
+    /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
+    p += length;
+
+    if (a != NULL)
+        (*a) = ret;
+    *pp = p;
+    return (ret);
+ err:
+    OPENSSL_PUT_ERROR(ASN1, i);
+    if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+        ASN1_OBJECT_free(ret);
+    return (NULL);
+}
+
+ASN1_OBJECT *ASN1_OBJECT_new(void)
+{
+    ASN1_OBJECT *ret;
+
+    ret = (ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
+    if (ret == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return (NULL);
+    }
+    ret->length = 0;
+    ret->data = NULL;
+    ret->nid = 0;
+    ret->sn = NULL;
+    ret->ln = NULL;
+    ret->flags = ASN1_OBJECT_FLAG_DYNAMIC;
+    return (ret);
+}
+
+void ASN1_OBJECT_free(ASN1_OBJECT *a)
+{
+    if (a == NULL)
+        return;
+    if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS) {
+#ifndef CONST_STRICT            /* disable purely for compile-time strict
+                                 * const checking. Doing this on a "real"
+                                 * compile will cause memory leaks */
+        if (a->sn != NULL)
+            OPENSSL_free((void *)a->sn);
+        if (a->ln != NULL)
+            OPENSSL_free((void *)a->ln);
+#endif
+        a->sn = a->ln = NULL;
+    }
+    if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) {
+        if (a->data != NULL)
+            OPENSSL_free((void *)a->data);
+        a->data = NULL;
+        a->length = 0;
+    }
+    if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
+        OPENSSL_free(a);
+}
+
+ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
+                                const char *sn, const char *ln)
+{
+    ASN1_OBJECT o;
+
+    o.sn = sn;
+    o.ln = ln;
+    o.data = data;
+    o.nid = nid;
+    o.length = len;
+    o.flags = ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
+        ASN1_OBJECT_FLAG_DYNAMIC_DATA;
+    return (OBJ_dup(&o));
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_object.c.grpc_back

@@ -0,0 +1,286 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+#include <openssl/obj.h>
+
+#include "../internal.h"
+
+
+int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
+{
+    unsigned char *p, *allocated = NULL;
+    int objsize;
+
+    if ((a == NULL) || (a->data == NULL))
+        return (0);
+
+    objsize = ASN1_object_size(0, a->length, V_ASN1_OBJECT);
+    if (pp == NULL || objsize == -1)
+        return objsize;
+
+    if (*pp == NULL) {
+        if ((p = allocated = OPENSSL_malloc(objsize)) == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+    } else {
+        p = *pp;
+    }
+
+    ASN1_put_object(&p, 0, a->length, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
+    OPENSSL_memcpy(p, a->data, a->length);
+
+    /*
+     * If a new buffer was allocated, just return it back.
+     * If not, return the incremented buffer pointer.
+     */
+    *pp = allocated != NULL ? allocated : p + a->length;
+    return objsize;
+}
+
+int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
+{
+    return OBJ_obj2txt(buf, buf_len, a, 0);
+}
+
+int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
+{
+    char buf[80], *p = buf;
+    int i;
+
+    if ((a == NULL) || (a->data == NULL))
+        return (BIO_write(bp, "NULL", 4));
+    i = i2t_ASN1_OBJECT(buf, sizeof buf, a);
+    if (i > (int)(sizeof(buf) - 1)) {
+        p = OPENSSL_malloc(i + 1);
+        if (!p)
+            return -1;
+        i2t_ASN1_OBJECT(p, i + 1, a);
+    }
+    if (i <= 0)
+        return BIO_write(bp, "<INVALID>", 9);
+    BIO_write(bp, p, i);
+    if (p != buf)
+        OPENSSL_free(p);
+    return (i);
+}
+
+ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
+                             long length)
+{
+    const unsigned char *p;
+    long len;
+    int tag, xclass;
+    int inf, i;
+    ASN1_OBJECT *ret = NULL;
+    p = *pp;
+    inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
+    if (inf & 0x80) {
+        i = ASN1_R_BAD_OBJECT_HEADER;
+        goto err;
+    }
+
+    if (tag != V_ASN1_OBJECT) {
+        i = ASN1_R_EXPECTING_AN_OBJECT;
+        goto err;
+    }
+    ret = c2i_ASN1_OBJECT(a, &p, len);
+    if (ret)
+        *pp = p;
+    return ret;
+ err:
+    OPENSSL_PUT_ERROR(ASN1, i);
+    return (NULL);
+}
+
+ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
+                             long len)
+{
+    ASN1_OBJECT *ret = NULL;
+    const unsigned char *p;
+    unsigned char *data;
+    int i, length;
+
+    /*
+     * Sanity check OID encoding. Need at least one content octet. MSB must
+     * be clear in the last octet. can't have leading 0x80 in subidentifiers,
+     * see: X.690 8.19.2
+     */
+    if (len <= 0 || len > INT_MAX || pp == NULL || (p = *pp) == NULL ||
+        p[len - 1] & 0x80) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_OBJECT_ENCODING);
+        return NULL;
+    }
+    /* Now 0 < len <= INT_MAX, so the cast is safe. */
+    length = (int)len;
+    for (i = 0; i < length; i++, p++) {
+        if (*p == 0x80 && (!i || !(p[-1] & 0x80))) {
+            OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_OBJECT_ENCODING);
+            return NULL;
+        }
+    }
+
+    /*
+     * only the ASN1_OBJECTs from the 'table' will have values for ->sn or
+     * ->ln
+     */
+    if ((a == NULL) || ((*a) == NULL) ||
+        !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC)) {
+        if ((ret = ASN1_OBJECT_new()) == NULL)
+            return (NULL);
+    } else
+        ret = (*a);
+
+    p = *pp;
+    /* detach data from object */
+    data = (unsigned char *)ret->data;
+    ret->data = NULL;
+    /* once detached we can change it */
+    if ((data == NULL) || (ret->length < length)) {
+        ret->length = 0;
+        if (data != NULL)
+            OPENSSL_free(data);
+        data = (unsigned char *)OPENSSL_malloc(length);
+        if (data == NULL) {
+            i = ERR_R_MALLOC_FAILURE;
+            goto err;
+        }
+        ret->flags |= ASN1_OBJECT_FLAG_DYNAMIC_DATA;
+    }
+    OPENSSL_memcpy(data, p, length);
+    /* reattach data to object, after which it remains const */
+    ret->data = data;
+    ret->length = length;
+    ret->sn = NULL;
+    ret->ln = NULL;
+    /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
+    p += length;
+
+    if (a != NULL)
+        (*a) = ret;
+    *pp = p;
+    return (ret);
+ err:
+    OPENSSL_PUT_ERROR(ASN1, i);
+    if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+        ASN1_OBJECT_free(ret);
+    return (NULL);
+}
+
+ASN1_OBJECT *ASN1_OBJECT_new(void)
+{
+    ASN1_OBJECT *ret;
+
+    ret = (ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
+    if (ret == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return (NULL);
+    }
+    ret->length = 0;
+    ret->data = NULL;
+    ret->nid = 0;
+    ret->sn = NULL;
+    ret->ln = NULL;
+    ret->flags = ASN1_OBJECT_FLAG_DYNAMIC;
+    return (ret);
+}
+
+void ASN1_OBJECT_free(ASN1_OBJECT *a)
+{
+    if (a == NULL)
+        return;
+    if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS) {
+#ifndef CONST_STRICT            /* disable purely for compile-time strict
+                                 * const checking. Doing this on a "real"
+                                 * compile will cause memory leaks */
+        if (a->sn != NULL)
+            OPENSSL_free((void *)a->sn);
+        if (a->ln != NULL)
+            OPENSSL_free((void *)a->ln);
+#endif
+        a->sn = a->ln = NULL;
+    }
+    if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) {
+        if (a->data != NULL)
+            OPENSSL_free((void *)a->data);
+        a->data = NULL;
+        a->length = 0;
+    }
+    if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
+        OPENSSL_free(a);
+}
+
+ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
+                                const char *sn, const char *ln)
+{
+    ASN1_OBJECT o;
+
+    o.sn = sn;
+    o.ln = ln;
+    o.data = data;
+    o.nid = nid;
+    o.length = len;
+    o.flags = ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
+        ASN1_OBJECT_FLAG_DYNAMIC_DATA;
+    return (OBJ_dup(&o));
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_octet.c

@@ -0,0 +1,77 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+ASN1_OCTET_STRING *ASN1_OCTET_STRING_dup(const ASN1_OCTET_STRING *x)
+{
+    return M_ASN1_OCTET_STRING_dup(x);
+}
+
+int ASN1_OCTET_STRING_cmp(const ASN1_OCTET_STRING *a,
+                          const ASN1_OCTET_STRING *b)
+{
+    return M_ASN1_OCTET_STRING_cmp(a, b);
+}
+
+int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *x, const unsigned char *d,
+                          int len)
+{
+    return M_ASN1_OCTET_STRING_set(x, d, len);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_octet.c.grpc_back

@@ -0,0 +1,77 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+ASN1_OCTET_STRING *ASN1_OCTET_STRING_dup(const ASN1_OCTET_STRING *x)
+{
+    return M_ASN1_OCTET_STRING_dup(x);
+}
+
+int ASN1_OCTET_STRING_cmp(const ASN1_OCTET_STRING *a,
+                          const ASN1_OCTET_STRING *b)
+{
+    return M_ASN1_OCTET_STRING_cmp(a, b);
+}
+
+int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *x, const unsigned char *d,
+                          int len)
+{
+    return M_ASN1_OCTET_STRING_set(x, d, len);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_print.c

@@ -0,0 +1,93 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+int ASN1_PRINTABLE_type(const unsigned char *s, int len)
+{
+    int c;
+    int ia5 = 0;
+    int t61 = 0;
+
+    if (len <= 0)
+        len = -1;
+    if (s == NULL)
+        return (V_ASN1_PRINTABLESTRING);
+
+    while ((*s) && (len-- != 0)) {
+        c = *(s++);
+        if (!(((c >= 'a') && (c <= 'z')) ||
+              ((c >= 'A') && (c <= 'Z')) ||
+              (c == ' ') ||
+              ((c >= '0') && (c <= '9')) ||
+              (c == ' ') || (c == '\'') ||
+              (c == '(') || (c == ')') ||
+              (c == '+') || (c == ',') ||
+              (c == '-') || (c == '.') ||
+              (c == '/') || (c == ':') || (c == '=') || (c == '?')))
+            ia5 = 1;
+        if (c & 0x80)
+            t61 = 1;
+    }
+    if (t61)
+        return (V_ASN1_T61STRING);
+    if (ia5)
+        return (V_ASN1_IA5STRING);
+    return (V_ASN1_PRINTABLESTRING);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_print.c.grpc_back

@@ -0,0 +1,93 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+int ASN1_PRINTABLE_type(const unsigned char *s, int len)
+{
+    int c;
+    int ia5 = 0;
+    int t61 = 0;
+
+    if (len <= 0)
+        len = -1;
+    if (s == NULL)
+        return (V_ASN1_PRINTABLESTRING);
+
+    while ((*s) && (len-- != 0)) {
+        c = *(s++);
+        if (!(((c >= 'a') && (c <= 'z')) ||
+              ((c >= 'A') && (c <= 'Z')) ||
+              (c == ' ') ||
+              ((c >= '0') && (c <= '9')) ||
+              (c == ' ') || (c == '\'') ||
+              (c == '(') || (c == ')') ||
+              (c == '+') || (c == ',') ||
+              (c == '-') || (c == '.') ||
+              (c == '/') || (c == ':') || (c == '=') || (c == '?')))
+            ia5 = 1;
+        if (c & 0x80)
+            t61 = 1;
+    }
+    if (t61)
+        return (V_ASN1_T61STRING);
+    if (ia5)
+        return (V_ASN1_IA5STRING);
+    return (V_ASN1_PRINTABLESTRING);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_strnid.c

@@ -0,0 +1,313 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <stdlib.h>             /* For bsearch */
+#include <string.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+#include <openssl_grpc/obj.h>
+#include <openssl_grpc/stack.h>
+
+DEFINE_STACK_OF(ASN1_STRING_TABLE)
+
+static STACK_OF(ASN1_STRING_TABLE) *stable = NULL;
+static void st_free(ASN1_STRING_TABLE *tbl);
+
+/*
+ * This is the global mask for the mbstring functions: this is use to mask
+ * out certain types (such as BMPString and UTF8String) because certain
+ * software (e.g. Netscape) has problems with them.
+ */
+
+static unsigned long global_mask = B_ASN1_UTF8STRING;
+
+void ASN1_STRING_set_default_mask(unsigned long mask)
+{
+    global_mask = mask;
+}
+
+unsigned long ASN1_STRING_get_default_mask(void)
+{
+    return global_mask;
+}
+
+/*
+ * This function sets the default to various "flavours" of configuration.
+ * based on an ASCII string. Currently this is: MASK:XXXX : a numerical mask
+ * value. nobmp : Don't use BMPStrings (just Printable, T61). pkix : PKIX
+ * recommendation in RFC2459. utf8only : only use UTF8Strings (RFC2459
+ * recommendation for 2004). default: the default value, Printable, T61, BMP.
+ */
+
+int ASN1_STRING_set_default_mask_asc(const char *p)
+{
+    unsigned long mask;
+    char *end;
+    if (!strncmp(p, "MASK:", 5)) {
+        if (!p[5])
+            return 0;
+        mask = strtoul(p + 5, &end, 0);
+        if (*end)
+            return 0;
+    } else if (!strcmp(p, "nombstr"))
+        mask = ~((unsigned long)(B_ASN1_BMPSTRING | B_ASN1_UTF8STRING));
+    else if (!strcmp(p, "pkix"))
+        mask = ~((unsigned long)B_ASN1_T61STRING);
+    else if (!strcmp(p, "utf8only"))
+        mask = B_ASN1_UTF8STRING;
+    else if (!strcmp(p, "default"))
+        mask = 0xFFFFFFFFL;
+    else
+        return 0;
+    ASN1_STRING_set_default_mask(mask);
+    return 1;
+}
+
+/*
+ * The following function generates an ASN1_STRING based on limits in a
+ * table. Frequently the types and length of an ASN1_STRING are restricted by
+ * a corresponding OID. For example certificates and certificate requests.
+ */
+
+ASN1_STRING *ASN1_STRING_set_by_NID(ASN1_STRING **out,
+                                    const unsigned char *in, int inlen,
+                                    int inform, int nid)
+{
+    ASN1_STRING_TABLE *tbl;
+    ASN1_STRING *str = NULL;
+    unsigned long mask;
+    int ret;
+    if (!out)
+        out = &str;
+    tbl = ASN1_STRING_TABLE_get(nid);
+    if (tbl) {
+        mask = tbl->mask;
+        if (!(tbl->flags & STABLE_NO_MASK))
+            mask &= global_mask;
+        ret = ASN1_mbstring_ncopy(out, in, inlen, inform, mask,
+                                  tbl->minsize, tbl->maxsize);
+    } else
+        ret =
+            ASN1_mbstring_copy(out, in, inlen, inform,
+                               DIRSTRING_TYPE & global_mask);
+    if (ret <= 0)
+        return NULL;
+    return *out;
+}
+
+/*
+ * Now the tables and helper functions for the string table:
+ */
+
+/* size limits: this stuff is taken straight from RFC3280 */
+
+#define ub_name                         32768
+#define ub_common_name                  64
+#define ub_locality_name                128
+#define ub_state_name                   128
+#define ub_organization_name            64
+#define ub_organization_unit_name       64
+#define ub_title                        64
+#define ub_email_address                128
+#define ub_serial_number                64
+
+/* This table must be kept in NID order */
+
+static const ASN1_STRING_TABLE tbl_standard[] = {
+    {NID_commonName, 1, ub_common_name, DIRSTRING_TYPE, 0},
+    {NID_countryName, 2, 2, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},
+    {NID_localityName, 1, ub_locality_name, DIRSTRING_TYPE, 0},
+    {NID_stateOrProvinceName, 1, ub_state_name, DIRSTRING_TYPE, 0},
+    {NID_organizationName, 1, ub_organization_name, DIRSTRING_TYPE, 0},
+    {NID_organizationalUnitName, 1, ub_organization_unit_name, DIRSTRING_TYPE,
+     0},
+    {NID_pkcs9_emailAddress, 1, ub_email_address, B_ASN1_IA5STRING,
+     STABLE_NO_MASK},
+    {NID_pkcs9_unstructuredName, 1, -1, PKCS9STRING_TYPE, 0},
+    {NID_pkcs9_challengePassword, 1, -1, PKCS9STRING_TYPE, 0},
+    {NID_pkcs9_unstructuredAddress, 1, -1, DIRSTRING_TYPE, 0},
+    {NID_givenName, 1, ub_name, DIRSTRING_TYPE, 0},
+    {NID_surname, 1, ub_name, DIRSTRING_TYPE, 0},
+    {NID_initials, 1, ub_name, DIRSTRING_TYPE, 0},
+    {NID_serialNumber, 1, ub_serial_number, B_ASN1_PRINTABLESTRING,
+     STABLE_NO_MASK},
+    {NID_friendlyName, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK},
+    {NID_name, 1, ub_name, DIRSTRING_TYPE, 0},
+    {NID_dnQualifier, -1, -1, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},
+    {NID_domainComponent, 1, -1, B_ASN1_IA5STRING, STABLE_NO_MASK},
+    {NID_ms_csp_name, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK}
+};
+
+static int sk_table_cmp(const ASN1_STRING_TABLE **a,
+                        const ASN1_STRING_TABLE **b)
+{
+    return (*a)->nid - (*b)->nid;
+}
+
+static int table_cmp(const void *in_a, const void *in_b)
+{
+    const ASN1_STRING_TABLE *a = in_a;
+    const ASN1_STRING_TABLE *b = in_b;
+    return a->nid - b->nid;
+}
+
+ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid)
+{
+    int found;
+    size_t idx;
+    ASN1_STRING_TABLE *ttmp;
+    ASN1_STRING_TABLE fnd;
+    fnd.nid = nid;
+
+    ttmp =
+        bsearch(&fnd, tbl_standard,
+                sizeof(tbl_standard) / sizeof(ASN1_STRING_TABLE),
+                sizeof(ASN1_STRING_TABLE), table_cmp);
+    if (ttmp)
+        return ttmp;
+    if (!stable)
+        return NULL;
+    sk_ASN1_STRING_TABLE_sort(stable);
+    found = sk_ASN1_STRING_TABLE_find(stable, &idx, &fnd);
+    if (!found)
+        return NULL;
+    return sk_ASN1_STRING_TABLE_value(stable, idx);
+}
+
+int ASN1_STRING_TABLE_add(int nid,
+                          long minsize, long maxsize, unsigned long mask,
+                          unsigned long flags)
+{
+    ASN1_STRING_TABLE *tmp;
+    char new_nid = 0;
+    flags &= ~STABLE_FLAGS_MALLOC;
+    if (!stable)
+        stable = sk_ASN1_STRING_TABLE_new(sk_table_cmp);
+    if (!stable) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+    if (!(tmp = ASN1_STRING_TABLE_get(nid))) {
+        tmp = OPENSSL_malloc(sizeof(ASN1_STRING_TABLE));
+        if (!tmp) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+        tmp->flags = flags | STABLE_FLAGS_MALLOC;
+        tmp->nid = nid;
+        tmp->minsize = tmp->maxsize = -1;
+        new_nid = 1;
+    } else
+        tmp->flags = (tmp->flags & STABLE_FLAGS_MALLOC) | flags;
+    if (minsize != -1)
+        tmp->minsize = minsize;
+    if (maxsize != -1)
+        tmp->maxsize = maxsize;
+    tmp->mask = mask;
+    if (new_nid)
+        sk_ASN1_STRING_TABLE_push(stable, tmp);
+    return 1;
+}
+
+void ASN1_STRING_TABLE_cleanup(void)
+{
+    STACK_OF(ASN1_STRING_TABLE) *tmp;
+    tmp = stable;
+    if (!tmp)
+        return;
+    stable = NULL;
+    sk_ASN1_STRING_TABLE_pop_free(tmp, st_free);
+}
+
+static void st_free(ASN1_STRING_TABLE *tbl)
+{
+    if (tbl->flags & STABLE_FLAGS_MALLOC)
+        OPENSSL_free(tbl);
+}
+
+#ifdef STRING_TABLE_TEST
+
+int main(void)
+{
+    ASN1_STRING_TABLE *tmp;
+    int i, last_nid = -1;
+
+    for (tmp = tbl_standard, i = 0;
+         i < sizeof(tbl_standard) / sizeof(ASN1_STRING_TABLE); i++, tmp++) {
+        if (tmp->nid < last_nid) {
+            last_nid = 0;
+            break;
+        }
+        last_nid = tmp->nid;
+    }
+
+    if (last_nid != 0) {
+        printf("Table order OK\n");
+        exit(0);
+    }
+
+    for (tmp = tbl_standard, i = 0;
+         i < sizeof(tbl_standard) / sizeof(ASN1_STRING_TABLE); i++, tmp++)
+        printf("Index %d, NID %d, Name=%s\n", i, tmp->nid,
+               OBJ_nid2ln(tmp->nid));
+
+    return 0;
+}
+
+#endif

Pods/BoringSSL-GRPC/src/crypto/asn1/a_strnid.c.grpc_back

@@ -0,0 +1,313 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <stdlib.h>             /* For bsearch */
+#include <string.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+#include <openssl/obj.h>
+#include <openssl/stack.h>
+
+DEFINE_STACK_OF(ASN1_STRING_TABLE)
+
+static STACK_OF(ASN1_STRING_TABLE) *stable = NULL;
+static void st_free(ASN1_STRING_TABLE *tbl);
+
+/*
+ * This is the global mask for the mbstring functions: this is use to mask
+ * out certain types (such as BMPString and UTF8String) because certain
+ * software (e.g. Netscape) has problems with them.
+ */
+
+static unsigned long global_mask = B_ASN1_UTF8STRING;
+
+void ASN1_STRING_set_default_mask(unsigned long mask)
+{
+    global_mask = mask;
+}
+
+unsigned long ASN1_STRING_get_default_mask(void)
+{
+    return global_mask;
+}
+
+/*
+ * This function sets the default to various "flavours" of configuration.
+ * based on an ASCII string. Currently this is: MASK:XXXX : a numerical mask
+ * value. nobmp : Don't use BMPStrings (just Printable, T61). pkix : PKIX
+ * recommendation in RFC2459. utf8only : only use UTF8Strings (RFC2459
+ * recommendation for 2004). default: the default value, Printable, T61, BMP.
+ */
+
+int ASN1_STRING_set_default_mask_asc(const char *p)
+{
+    unsigned long mask;
+    char *end;
+    if (!strncmp(p, "MASK:", 5)) {
+        if (!p[5])
+            return 0;
+        mask = strtoul(p + 5, &end, 0);
+        if (*end)
+            return 0;
+    } else if (!strcmp(p, "nombstr"))
+        mask = ~((unsigned long)(B_ASN1_BMPSTRING | B_ASN1_UTF8STRING));
+    else if (!strcmp(p, "pkix"))
+        mask = ~((unsigned long)B_ASN1_T61STRING);
+    else if (!strcmp(p, "utf8only"))
+        mask = B_ASN1_UTF8STRING;
+    else if (!strcmp(p, "default"))
+        mask = 0xFFFFFFFFL;
+    else
+        return 0;
+    ASN1_STRING_set_default_mask(mask);
+    return 1;
+}
+
+/*
+ * The following function generates an ASN1_STRING based on limits in a
+ * table. Frequently the types and length of an ASN1_STRING are restricted by
+ * a corresponding OID. For example certificates and certificate requests.
+ */
+
+ASN1_STRING *ASN1_STRING_set_by_NID(ASN1_STRING **out,
+                                    const unsigned char *in, int inlen,
+                                    int inform, int nid)
+{
+    ASN1_STRING_TABLE *tbl;
+    ASN1_STRING *str = NULL;
+    unsigned long mask;
+    int ret;
+    if (!out)
+        out = &str;
+    tbl = ASN1_STRING_TABLE_get(nid);
+    if (tbl) {
+        mask = tbl->mask;
+        if (!(tbl->flags & STABLE_NO_MASK))
+            mask &= global_mask;
+        ret = ASN1_mbstring_ncopy(out, in, inlen, inform, mask,
+                                  tbl->minsize, tbl->maxsize);
+    } else
+        ret =
+            ASN1_mbstring_copy(out, in, inlen, inform,
+                               DIRSTRING_TYPE & global_mask);
+    if (ret <= 0)
+        return NULL;
+    return *out;
+}
+
+/*
+ * Now the tables and helper functions for the string table:
+ */
+
+/* size limits: this stuff is taken straight from RFC3280 */
+
+#define ub_name                         32768
+#define ub_common_name                  64
+#define ub_locality_name                128
+#define ub_state_name                   128
+#define ub_organization_name            64
+#define ub_organization_unit_name       64
+#define ub_title                        64
+#define ub_email_address                128
+#define ub_serial_number                64
+
+/* This table must be kept in NID order */
+
+static const ASN1_STRING_TABLE tbl_standard[] = {
+    {NID_commonName, 1, ub_common_name, DIRSTRING_TYPE, 0},
+    {NID_countryName, 2, 2, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},
+    {NID_localityName, 1, ub_locality_name, DIRSTRING_TYPE, 0},
+    {NID_stateOrProvinceName, 1, ub_state_name, DIRSTRING_TYPE, 0},
+    {NID_organizationName, 1, ub_organization_name, DIRSTRING_TYPE, 0},
+    {NID_organizationalUnitName, 1, ub_organization_unit_name, DIRSTRING_TYPE,
+     0},
+    {NID_pkcs9_emailAddress, 1, ub_email_address, B_ASN1_IA5STRING,
+     STABLE_NO_MASK},
+    {NID_pkcs9_unstructuredName, 1, -1, PKCS9STRING_TYPE, 0},
+    {NID_pkcs9_challengePassword, 1, -1, PKCS9STRING_TYPE, 0},
+    {NID_pkcs9_unstructuredAddress, 1, -1, DIRSTRING_TYPE, 0},
+    {NID_givenName, 1, ub_name, DIRSTRING_TYPE, 0},
+    {NID_surname, 1, ub_name, DIRSTRING_TYPE, 0},
+    {NID_initials, 1, ub_name, DIRSTRING_TYPE, 0},
+    {NID_serialNumber, 1, ub_serial_number, B_ASN1_PRINTABLESTRING,
+     STABLE_NO_MASK},
+    {NID_friendlyName, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK},
+    {NID_name, 1, ub_name, DIRSTRING_TYPE, 0},
+    {NID_dnQualifier, -1, -1, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},
+    {NID_domainComponent, 1, -1, B_ASN1_IA5STRING, STABLE_NO_MASK},
+    {NID_ms_csp_name, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK}
+};
+
+static int sk_table_cmp(const ASN1_STRING_TABLE **a,
+                        const ASN1_STRING_TABLE **b)
+{
+    return (*a)->nid - (*b)->nid;
+}
+
+static int table_cmp(const void *in_a, const void *in_b)
+{
+    const ASN1_STRING_TABLE *a = in_a;
+    const ASN1_STRING_TABLE *b = in_b;
+    return a->nid - b->nid;
+}
+
+ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid)
+{
+    int found;
+    size_t idx;
+    ASN1_STRING_TABLE *ttmp;
+    ASN1_STRING_TABLE fnd;
+    fnd.nid = nid;
+
+    ttmp =
+        bsearch(&fnd, tbl_standard,
+                sizeof(tbl_standard) / sizeof(ASN1_STRING_TABLE),
+                sizeof(ASN1_STRING_TABLE), table_cmp);
+    if (ttmp)
+        return ttmp;
+    if (!stable)
+        return NULL;
+    sk_ASN1_STRING_TABLE_sort(stable);
+    found = sk_ASN1_STRING_TABLE_find(stable, &idx, &fnd);
+    if (!found)
+        return NULL;
+    return sk_ASN1_STRING_TABLE_value(stable, idx);
+}
+
+int ASN1_STRING_TABLE_add(int nid,
+                          long minsize, long maxsize, unsigned long mask,
+                          unsigned long flags)
+{
+    ASN1_STRING_TABLE *tmp;
+    char new_nid = 0;
+    flags &= ~STABLE_FLAGS_MALLOC;
+    if (!stable)
+        stable = sk_ASN1_STRING_TABLE_new(sk_table_cmp);
+    if (!stable) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+    if (!(tmp = ASN1_STRING_TABLE_get(nid))) {
+        tmp = OPENSSL_malloc(sizeof(ASN1_STRING_TABLE));
+        if (!tmp) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+        tmp->flags = flags | STABLE_FLAGS_MALLOC;
+        tmp->nid = nid;
+        tmp->minsize = tmp->maxsize = -1;
+        new_nid = 1;
+    } else
+        tmp->flags = (tmp->flags & STABLE_FLAGS_MALLOC) | flags;
+    if (minsize != -1)
+        tmp->minsize = minsize;
+    if (maxsize != -1)
+        tmp->maxsize = maxsize;
+    tmp->mask = mask;
+    if (new_nid)
+        sk_ASN1_STRING_TABLE_push(stable, tmp);
+    return 1;
+}
+
+void ASN1_STRING_TABLE_cleanup(void)
+{
+    STACK_OF(ASN1_STRING_TABLE) *tmp;
+    tmp = stable;
+    if (!tmp)
+        return;
+    stable = NULL;
+    sk_ASN1_STRING_TABLE_pop_free(tmp, st_free);
+}
+
+static void st_free(ASN1_STRING_TABLE *tbl)
+{
+    if (tbl->flags & STABLE_FLAGS_MALLOC)
+        OPENSSL_free(tbl);
+}
+
+#ifdef STRING_TABLE_TEST
+
+int main(void)
+{
+    ASN1_STRING_TABLE *tmp;
+    int i, last_nid = -1;
+
+    for (tmp = tbl_standard, i = 0;
+         i < sizeof(tbl_standard) / sizeof(ASN1_STRING_TABLE); i++, tmp++) {
+        if (tmp->nid < last_nid) {
+            last_nid = 0;
+            break;
+        }
+        last_nid = tmp->nid;
+    }
+
+    if (last_nid != 0) {
+        printf("Table order OK\n");
+        exit(0);
+    }
+
+    for (tmp = tbl_standard, i = 0;
+         i < sizeof(tbl_standard) / sizeof(ASN1_STRING_TABLE); i++, tmp++)
+        printf("Index %d, NID %d, Name=%s\n", i, tmp->nid,
+               OBJ_nid2ln(tmp->nid));
+
+    return 0;
+}
+
+#endif

Pods/BoringSSL-GRPC/src/crypto/asn1/a_time.c

@@ -0,0 +1,212 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <string.h>
+#include <time.h>
+
+#include <openssl_grpc/asn1t.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "asn1_locl.h"
+
+/*
+ * This is an implementation of the ASN1 Time structure which is: Time ::=
+ * CHOICE { utcTime UTCTime, generalTime GeneralizedTime } written by Steve
+ * Henson.
+ */
+
+IMPLEMENT_ASN1_MSTRING(ASN1_TIME, B_ASN1_TIME)
+
+IMPLEMENT_ASN1_FUNCTIONS(ASN1_TIME)
+
+ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t)
+{
+    return ASN1_TIME_adj(s, t, 0, 0);
+}
+
+ASN1_TIME *ASN1_TIME_adj(ASN1_TIME *s, time_t t,
+                         int offset_day, long offset_sec)
+{
+    struct tm *ts;
+    struct tm data;
+
+    ts = OPENSSL_gmtime(&t, &data);
+    if (ts == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_ERROR_GETTING_TIME);
+        return NULL;
+    }
+    if (offset_day || offset_sec) {
+        if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
+            return NULL;
+    }
+    if ((ts->tm_year >= 50) && (ts->tm_year < 150))
+        return ASN1_UTCTIME_adj(s, t, offset_day, offset_sec);
+    return ASN1_GENERALIZEDTIME_adj(s, t, offset_day, offset_sec);
+}
+
+int ASN1_TIME_check(ASN1_TIME *t)
+{
+    if (t->type == V_ASN1_GENERALIZEDTIME)
+        return ASN1_GENERALIZEDTIME_check(t);
+    else if (t->type == V_ASN1_UTCTIME)
+        return ASN1_UTCTIME_check(t);
+    return 0;
+}
+
+/* Convert an ASN1_TIME structure to GeneralizedTime */
+ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *t,
+                                                   ASN1_GENERALIZEDTIME **out)
+{
+    ASN1_GENERALIZEDTIME *ret = NULL;
+    char *str;
+    int newlen;
+
+    if (!ASN1_TIME_check(t))
+        return NULL;
+
+    if (!out || !*out) {
+        if (!(ret = ASN1_GENERALIZEDTIME_new()))
+            goto err;
+    } else {
+        ret = *out;
+    }
+
+    /* If already GeneralizedTime just copy across */
+    if (t->type == V_ASN1_GENERALIZEDTIME) {
+        if (!ASN1_STRING_set(ret, t->data, t->length))
+            goto err;
+        goto done;
+    }
+
+    /* grow the string */
+    if (!ASN1_STRING_set(ret, NULL, t->length + 2))
+        goto err;
+    /* ASN1_STRING_set() allocated 'len + 1' bytes. */
+    newlen = t->length + 2 + 1;
+    str = (char *)ret->data;
+    /* Work out the century and prepend */
+    if (t->data[0] >= '5')
+        OPENSSL_strlcpy(str, "19", newlen);
+    else
+        OPENSSL_strlcpy(str, "20", newlen);
+
+    OPENSSL_strlcat(str, (char *)t->data, newlen);
+
+ done:
+   if (out != NULL && *out == NULL)
+       *out = ret;
+   return ret;
+
+ err:
+    if (out == NULL || *out != ret)
+        ASN1_GENERALIZEDTIME_free(ret);
+    return NULL;
+}
+
+
+int ASN1_TIME_set_string(ASN1_TIME *s, const char *str)
+{
+    ASN1_TIME t;
+
+    t.length = strlen(str);
+    t.data = (unsigned char *)str;
+    t.flags = 0;
+
+    t.type = V_ASN1_UTCTIME;
+
+    if (!ASN1_TIME_check(&t)) {
+        t.type = V_ASN1_GENERALIZEDTIME;
+        if (!ASN1_TIME_check(&t))
+            return 0;
+    }
+
+    if (s && !ASN1_STRING_copy((ASN1_STRING *)s, (ASN1_STRING *)&t))
+        return 0;
+
+    return 1;
+}
+
+static int asn1_time_to_tm(struct tm *tm, const ASN1_TIME *t)
+{
+    if (t == NULL) {
+        time_t now_t;
+        time(&now_t);
+        if (OPENSSL_gmtime(&now_t, tm))
+            return 1;
+        return 0;
+    }
+
+    if (t->type == V_ASN1_UTCTIME)
+        return asn1_utctime_to_tm(tm, t);
+    else if (t->type == V_ASN1_GENERALIZEDTIME)
+        return asn1_generalizedtime_to_tm(tm, t);
+
+    return 0;
+}
+
+int ASN1_TIME_diff(int *pday, int *psec,
+                   const ASN1_TIME *from, const ASN1_TIME *to)
+{
+    struct tm tm_from, tm_to;
+    if (!asn1_time_to_tm(&tm_from, from))
+        return 0;
+    if (!asn1_time_to_tm(&tm_to, to))
+        return 0;
+    return OPENSSL_gmtime_diff(pday, psec, &tm_from, &tm_to);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_time.c.grpc_back

@@ -0,0 +1,212 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <string.h>
+#include <time.h>
+
+#include <openssl/asn1t.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "asn1_locl.h"
+
+/*
+ * This is an implementation of the ASN1 Time structure which is: Time ::=
+ * CHOICE { utcTime UTCTime, generalTime GeneralizedTime } written by Steve
+ * Henson.
+ */
+
+IMPLEMENT_ASN1_MSTRING(ASN1_TIME, B_ASN1_TIME)
+
+IMPLEMENT_ASN1_FUNCTIONS(ASN1_TIME)
+
+ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t)
+{
+    return ASN1_TIME_adj(s, t, 0, 0);
+}
+
+ASN1_TIME *ASN1_TIME_adj(ASN1_TIME *s, time_t t,
+                         int offset_day, long offset_sec)
+{
+    struct tm *ts;
+    struct tm data;
+
+    ts = OPENSSL_gmtime(&t, &data);
+    if (ts == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_ERROR_GETTING_TIME);
+        return NULL;
+    }
+    if (offset_day || offset_sec) {
+        if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
+            return NULL;
+    }
+    if ((ts->tm_year >= 50) && (ts->tm_year < 150))
+        return ASN1_UTCTIME_adj(s, t, offset_day, offset_sec);
+    return ASN1_GENERALIZEDTIME_adj(s, t, offset_day, offset_sec);
+}
+
+int ASN1_TIME_check(ASN1_TIME *t)
+{
+    if (t->type == V_ASN1_GENERALIZEDTIME)
+        return ASN1_GENERALIZEDTIME_check(t);
+    else if (t->type == V_ASN1_UTCTIME)
+        return ASN1_UTCTIME_check(t);
+    return 0;
+}
+
+/* Convert an ASN1_TIME structure to GeneralizedTime */
+ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *t,
+                                                   ASN1_GENERALIZEDTIME **out)
+{
+    ASN1_GENERALIZEDTIME *ret = NULL;
+    char *str;
+    int newlen;
+
+    if (!ASN1_TIME_check(t))
+        return NULL;
+
+    if (!out || !*out) {
+        if (!(ret = ASN1_GENERALIZEDTIME_new()))
+            goto err;
+    } else {
+        ret = *out;
+    }
+
+    /* If already GeneralizedTime just copy across */
+    if (t->type == V_ASN1_GENERALIZEDTIME) {
+        if (!ASN1_STRING_set(ret, t->data, t->length))
+            goto err;
+        goto done;
+    }
+
+    /* grow the string */
+    if (!ASN1_STRING_set(ret, NULL, t->length + 2))
+        goto err;
+    /* ASN1_STRING_set() allocated 'len + 1' bytes. */
+    newlen = t->length + 2 + 1;
+    str = (char *)ret->data;
+    /* Work out the century and prepend */
+    if (t->data[0] >= '5')
+        OPENSSL_strlcpy(str, "19", newlen);
+    else
+        OPENSSL_strlcpy(str, "20", newlen);
+
+    OPENSSL_strlcat(str, (char *)t->data, newlen);
+
+ done:
+   if (out != NULL && *out == NULL)
+       *out = ret;
+   return ret;
+
+ err:
+    if (out == NULL || *out != ret)
+        ASN1_GENERALIZEDTIME_free(ret);
+    return NULL;
+}
+
+
+int ASN1_TIME_set_string(ASN1_TIME *s, const char *str)
+{
+    ASN1_TIME t;
+
+    t.length = strlen(str);
+    t.data = (unsigned char *)str;
+    t.flags = 0;
+
+    t.type = V_ASN1_UTCTIME;
+
+    if (!ASN1_TIME_check(&t)) {
+        t.type = V_ASN1_GENERALIZEDTIME;
+        if (!ASN1_TIME_check(&t))
+            return 0;
+    }
+
+    if (s && !ASN1_STRING_copy((ASN1_STRING *)s, (ASN1_STRING *)&t))
+        return 0;
+
+    return 1;
+}
+
+static int asn1_time_to_tm(struct tm *tm, const ASN1_TIME *t)
+{
+    if (t == NULL) {
+        time_t now_t;
+        time(&now_t);
+        if (OPENSSL_gmtime(&now_t, tm))
+            return 1;
+        return 0;
+    }
+
+    if (t->type == V_ASN1_UTCTIME)
+        return asn1_utctime_to_tm(tm, t);
+    else if (t->type == V_ASN1_GENERALIZEDTIME)
+        return asn1_generalizedtime_to_tm(tm, t);
+
+    return 0;
+}
+
+int ASN1_TIME_diff(int *pday, int *psec,
+                   const ASN1_TIME *from, const ASN1_TIME *to)
+{
+    struct tm tm_from, tm_to;
+    if (!asn1_time_to_tm(&tm_from, from))
+        return 0;
+    if (!asn1_time_to_tm(&tm_to, to))
+        return 0;
+    return OPENSSL_gmtime_diff(pday, psec, &tm_from, &tm_to);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_type.c

@@ -0,0 +1,151 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/asn1t.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+#include <openssl_grpc/obj.h>
+
+int ASN1_TYPE_get(ASN1_TYPE *a)
+{
+    if ((a->value.ptr != NULL) || (a->type == V_ASN1_NULL))
+        return (a->type);
+    else
+        return (0);
+}
+
+void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value)
+{
+    if (a->value.ptr != NULL) {
+        ASN1_TYPE **tmp_a = &a;
+        ASN1_primitive_free((ASN1_VALUE **)tmp_a, NULL);
+    }
+    a->type = type;
+    if (type == V_ASN1_BOOLEAN)
+        a->value.boolean = value ? 0xff : 0;
+    else
+        a->value.ptr = value;
+}
+
+int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value)
+{
+    if (!value || (type == V_ASN1_BOOLEAN)) {
+        void *p = (void *)value;
+        ASN1_TYPE_set(a, type, p);
+    } else if (type == V_ASN1_OBJECT) {
+        ASN1_OBJECT *odup;
+        odup = OBJ_dup(value);
+        if (!odup)
+            return 0;
+        ASN1_TYPE_set(a, type, odup);
+    } else {
+        ASN1_STRING *sdup;
+        sdup = ASN1_STRING_dup(value);
+        if (!sdup)
+            return 0;
+        ASN1_TYPE_set(a, type, sdup);
+    }
+    return 1;
+}
+
+/* Returns 0 if they are equal, != 0 otherwise. */
+int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b)
+{
+    int result = -1;
+
+    if (!a || !b || a->type != b->type)
+        return -1;
+
+    switch (a->type) {
+    case V_ASN1_OBJECT:
+        result = OBJ_cmp(a->value.object, b->value.object);
+        break;
+    case V_ASN1_NULL:
+        result = 0;             /* They do not have content. */
+        break;
+    case V_ASN1_BOOLEAN:
+        result = a->value.boolean - b->value.boolean;
+        break;
+    case V_ASN1_INTEGER:
+    case V_ASN1_ENUMERATED:
+    case V_ASN1_BIT_STRING:
+    case V_ASN1_OCTET_STRING:
+    case V_ASN1_SEQUENCE:
+    case V_ASN1_SET:
+    case V_ASN1_NUMERICSTRING:
+    case V_ASN1_PRINTABLESTRING:
+    case V_ASN1_T61STRING:
+    case V_ASN1_VIDEOTEXSTRING:
+    case V_ASN1_IA5STRING:
+    case V_ASN1_UTCTIME:
+    case V_ASN1_GENERALIZEDTIME:
+    case V_ASN1_GRAPHICSTRING:
+    case V_ASN1_VISIBLESTRING:
+    case V_ASN1_GENERALSTRING:
+    case V_ASN1_UNIVERSALSTRING:
+    case V_ASN1_BMPSTRING:
+    case V_ASN1_UTF8STRING:
+    case V_ASN1_OTHER:
+    default:
+        result = ASN1_STRING_cmp((ASN1_STRING *)a->value.ptr,
+                                 (ASN1_STRING *)b->value.ptr);
+        break;
+    }
+
+    return result;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_type.c.grpc_back

@@ -0,0 +1,151 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/asn1t.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+#include <openssl/obj.h>
+
+int ASN1_TYPE_get(ASN1_TYPE *a)
+{
+    if ((a->value.ptr != NULL) || (a->type == V_ASN1_NULL))
+        return (a->type);
+    else
+        return (0);
+}
+
+void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value)
+{
+    if (a->value.ptr != NULL) {
+        ASN1_TYPE **tmp_a = &a;
+        ASN1_primitive_free((ASN1_VALUE **)tmp_a, NULL);
+    }
+    a->type = type;
+    if (type == V_ASN1_BOOLEAN)
+        a->value.boolean = value ? 0xff : 0;
+    else
+        a->value.ptr = value;
+}
+
+int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value)
+{
+    if (!value || (type == V_ASN1_BOOLEAN)) {
+        void *p = (void *)value;
+        ASN1_TYPE_set(a, type, p);
+    } else if (type == V_ASN1_OBJECT) {
+        ASN1_OBJECT *odup;
+        odup = OBJ_dup(value);
+        if (!odup)
+            return 0;
+        ASN1_TYPE_set(a, type, odup);
+    } else {
+        ASN1_STRING *sdup;
+        sdup = ASN1_STRING_dup(value);
+        if (!sdup)
+            return 0;
+        ASN1_TYPE_set(a, type, sdup);
+    }
+    return 1;
+}
+
+/* Returns 0 if they are equal, != 0 otherwise. */
+int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b)
+{
+    int result = -1;
+
+    if (!a || !b || a->type != b->type)
+        return -1;
+
+    switch (a->type) {
+    case V_ASN1_OBJECT:
+        result = OBJ_cmp(a->value.object, b->value.object);
+        break;
+    case V_ASN1_NULL:
+        result = 0;             /* They do not have content. */
+        break;
+    case V_ASN1_BOOLEAN:
+        result = a->value.boolean - b->value.boolean;
+        break;
+    case V_ASN1_INTEGER:
+    case V_ASN1_ENUMERATED:
+    case V_ASN1_BIT_STRING:
+    case V_ASN1_OCTET_STRING:
+    case V_ASN1_SEQUENCE:
+    case V_ASN1_SET:
+    case V_ASN1_NUMERICSTRING:
+    case V_ASN1_PRINTABLESTRING:
+    case V_ASN1_T61STRING:
+    case V_ASN1_VIDEOTEXSTRING:
+    case V_ASN1_IA5STRING:
+    case V_ASN1_UTCTIME:
+    case V_ASN1_GENERALIZEDTIME:
+    case V_ASN1_GRAPHICSTRING:
+    case V_ASN1_VISIBLESTRING:
+    case V_ASN1_GENERALSTRING:
+    case V_ASN1_UNIVERSALSTRING:
+    case V_ASN1_BMPSTRING:
+    case V_ASN1_UTF8STRING:
+    case V_ASN1_OTHER:
+    default:
+        result = ASN1_STRING_cmp((ASN1_STRING *)a->value.ptr,
+                                 (ASN1_STRING *)b->value.ptr);
+        break;
+    }
+
+    return result;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_utctm.c

@@ -0,0 +1,303 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <string.h>
+#include <time.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "asn1_locl.h"
+
+
+int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d)
+{
+    static const int min[8] = { 0, 1, 1, 0, 0, 0, 0, 0 };
+    static const int max[8] = { 99, 12, 31, 23, 59, 59, 12, 59 };
+    char *a;
+    int n, i, l, o;
+
+    if (d->type != V_ASN1_UTCTIME)
+        return (0);
+    l = d->length;
+    a = (char *)d->data;
+    o = 0;
+
+    if (l < 11)
+        goto err;
+    for (i = 0; i < 6; i++) {
+        if ((i == 5) && ((a[o] == 'Z') || (a[o] == '+') || (a[o] == '-'))) {
+            i++;
+            if (tm)
+                tm->tm_sec = 0;
+            break;
+        }
+        if ((a[o] < '0') || (a[o] > '9'))
+            goto err;
+        n = a[o] - '0';
+        if (++o > l)
+            goto err;
+
+        if ((a[o] < '0') || (a[o] > '9'))
+            goto err;
+        n = (n * 10) + a[o] - '0';
+        if (++o > l)
+            goto err;
+
+        if ((n < min[i]) || (n > max[i]))
+            goto err;
+        if (tm) {
+            switch (i) {
+            case 0:
+                tm->tm_year = n < 50 ? n + 100 : n;
+                break;
+            case 1:
+                tm->tm_mon = n - 1;
+                break;
+            case 2:
+                tm->tm_mday = n;
+                break;
+            case 3:
+                tm->tm_hour = n;
+                break;
+            case 4:
+                tm->tm_min = n;
+                break;
+            case 5:
+                tm->tm_sec = n;
+                break;
+            }
+        }
+    }
+    if (a[o] == 'Z')
+        o++;
+    else if ((a[o] == '+') || (a[o] == '-')) {
+        int offsign = a[o] == '-' ? 1 : -1, offset = 0;
+        o++;
+        if (o + 4 > l)
+            goto err;
+        for (i = 6; i < 8; i++) {
+            if ((a[o] < '0') || (a[o] > '9'))
+                goto err;
+            n = a[o] - '0';
+            o++;
+            if ((a[o] < '0') || (a[o] > '9'))
+                goto err;
+            n = (n * 10) + a[o] - '0';
+            if ((n < min[i]) || (n > max[i]))
+                goto err;
+            if (tm) {
+                if (i == 6)
+                    offset = n * 3600;
+                else if (i == 7)
+                    offset += n * 60;
+            }
+            o++;
+        }
+        if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign))
+            return 0;
+    }
+    return o == l;
+ err:
+    return 0;
+}
+
+int ASN1_UTCTIME_check(const ASN1_UTCTIME *d)
+{
+    return asn1_utctime_to_tm(NULL, d);
+}
+
+int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str)
+{
+    ASN1_UTCTIME t;
+
+    t.type = V_ASN1_UTCTIME;
+    t.length = strlen(str);
+    t.data = (unsigned char *)str;
+    if (ASN1_UTCTIME_check(&t)) {
+        if (s != NULL) {
+            if (!ASN1_STRING_set((ASN1_STRING *)s,
+                                 (unsigned char *)str, t.length))
+                return 0;
+            s->type = V_ASN1_UTCTIME;
+        }
+        return (1);
+    } else
+        return (0);
+}
+
+ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t)
+{
+    return ASN1_UTCTIME_adj(s, t, 0, 0);
+}
+
+ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t,
+                               int offset_day, long offset_sec)
+{
+    char *p;
+    struct tm *ts;
+    struct tm data;
+    size_t len = 20;
+    int free_s = 0;
+
+    if (s == NULL) {
+        free_s = 1;
+        s = M_ASN1_UTCTIME_new();
+    }
+    if (s == NULL)
+        goto err;
+
+    ts = OPENSSL_gmtime(&t, &data);
+    if (ts == NULL)
+        goto err;
+
+    if (offset_day || offset_sec) {
+        if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
+            goto err;
+    }
+
+    if ((ts->tm_year < 50) || (ts->tm_year >= 150))
+        goto err;
+
+    p = (char *)s->data;
+    if ((p == NULL) || ((size_t)s->length < len)) {
+        p = OPENSSL_malloc(len);
+        if (p == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        if (s->data != NULL)
+            OPENSSL_free(s->data);
+        s->data = (unsigned char *)p;
+    }
+
+    BIO_snprintf(p, len, "%02d%02d%02d%02d%02d%02dZ", ts->tm_year % 100,
+                 ts->tm_mon + 1, ts->tm_mday, ts->tm_hour, ts->tm_min,
+                 ts->tm_sec);
+    s->length = strlen(p);
+    s->type = V_ASN1_UTCTIME;
+    return (s);
+ err:
+    if (free_s && s)
+        M_ASN1_UTCTIME_free(s);
+    return NULL;
+}
+
+int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t)
+{
+    struct tm stm, ttm;
+    int day, sec;
+
+    if (!asn1_utctime_to_tm(&stm, s))
+        return -2;
+
+    if (!OPENSSL_gmtime(&t, &ttm))
+        return -2;
+
+    if (!OPENSSL_gmtime_diff(&day, &sec, &ttm, &stm))
+        return -2;
+
+    if (day > 0)
+        return 1;
+    if (day < 0)
+        return -1;
+    if (sec > 0)
+        return 1;
+    if (sec < 0)
+        return -1;
+    return 0;
+}
+
+#if 0
+time_t ASN1_UTCTIME_get(const ASN1_UTCTIME *s)
+{
+    struct tm tm;
+    int offset;
+
+    OPENSSL_memset(&tm, '\0', sizeof tm);
+
+# define g2(p) (((p)[0]-'0')*10+(p)[1]-'0')
+    tm.tm_year = g2(s->data);
+    if (tm.tm_year < 50)
+        tm.tm_year += 100;
+    tm.tm_mon = g2(s->data + 2) - 1;
+    tm.tm_mday = g2(s->data + 4);
+    tm.tm_hour = g2(s->data + 6);
+    tm.tm_min = g2(s->data + 8);
+    tm.tm_sec = g2(s->data + 10);
+    if (s->data[12] == 'Z')
+        offset = 0;
+    else {
+        offset = g2(s->data + 13) * 60 + g2(s->data + 15);
+        if (s->data[12] == '-')
+            offset = -offset;
+    }
+# undef g2
+
+    return mktime(&tm) - offset * 60; /* FIXME: mktime assumes the current
+                                       * timezone instead of UTC, and unless
+                                       * we rewrite OpenSSL in Lisp we cannot
+                                       * locally change the timezone without
+                                       * possibly interfering with other
+                                       * parts of the program. timegm, which
+                                       * uses UTC, is non-standard. Also
+                                       * time_t is inappropriate for general
+                                       * UTC times because it may a 32 bit
+                                       * type. */
+}
+#endif

Pods/BoringSSL-GRPC/src/crypto/asn1/a_utctm.c.grpc_back

@@ -0,0 +1,303 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <string.h>
+#include <time.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "asn1_locl.h"
+
+
+int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d)
+{
+    static const int min[8] = { 0, 1, 1, 0, 0, 0, 0, 0 };
+    static const int max[8] = { 99, 12, 31, 23, 59, 59, 12, 59 };
+    char *a;
+    int n, i, l, o;
+
+    if (d->type != V_ASN1_UTCTIME)
+        return (0);
+    l = d->length;
+    a = (char *)d->data;
+    o = 0;
+
+    if (l < 11)
+        goto err;
+    for (i = 0; i < 6; i++) {
+        if ((i == 5) && ((a[o] == 'Z') || (a[o] == '+') || (a[o] == '-'))) {
+            i++;
+            if (tm)
+                tm->tm_sec = 0;
+            break;
+        }
+        if ((a[o] < '0') || (a[o] > '9'))
+            goto err;
+        n = a[o] - '0';
+        if (++o > l)
+            goto err;
+
+        if ((a[o] < '0') || (a[o] > '9'))
+            goto err;
+        n = (n * 10) + a[o] - '0';
+        if (++o > l)
+            goto err;
+
+        if ((n < min[i]) || (n > max[i]))
+            goto err;
+        if (tm) {
+            switch (i) {
+            case 0:
+                tm->tm_year = n < 50 ? n + 100 : n;
+                break;
+            case 1:
+                tm->tm_mon = n - 1;
+                break;
+            case 2:
+                tm->tm_mday = n;
+                break;
+            case 3:
+                tm->tm_hour = n;
+                break;
+            case 4:
+                tm->tm_min = n;
+                break;
+            case 5:
+                tm->tm_sec = n;
+                break;
+            }
+        }
+    }
+    if (a[o] == 'Z')
+        o++;
+    else if ((a[o] == '+') || (a[o] == '-')) {
+        int offsign = a[o] == '-' ? 1 : -1, offset = 0;
+        o++;
+        if (o + 4 > l)
+            goto err;
+        for (i = 6; i < 8; i++) {
+            if ((a[o] < '0') || (a[o] > '9'))
+                goto err;
+            n = a[o] - '0';
+            o++;
+            if ((a[o] < '0') || (a[o] > '9'))
+                goto err;
+            n = (n * 10) + a[o] - '0';
+            if ((n < min[i]) || (n > max[i]))
+                goto err;
+            if (tm) {
+                if (i == 6)
+                    offset = n * 3600;
+                else if (i == 7)
+                    offset += n * 60;
+            }
+            o++;
+        }
+        if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign))
+            return 0;
+    }
+    return o == l;
+ err:
+    return 0;
+}
+
+int ASN1_UTCTIME_check(const ASN1_UTCTIME *d)
+{
+    return asn1_utctime_to_tm(NULL, d);
+}
+
+int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str)
+{
+    ASN1_UTCTIME t;
+
+    t.type = V_ASN1_UTCTIME;
+    t.length = strlen(str);
+    t.data = (unsigned char *)str;
+    if (ASN1_UTCTIME_check(&t)) {
+        if (s != NULL) {
+            if (!ASN1_STRING_set((ASN1_STRING *)s,
+                                 (unsigned char *)str, t.length))
+                return 0;
+            s->type = V_ASN1_UTCTIME;
+        }
+        return (1);
+    } else
+        return (0);
+}
+
+ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t)
+{
+    return ASN1_UTCTIME_adj(s, t, 0, 0);
+}
+
+ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t,
+                               int offset_day, long offset_sec)
+{
+    char *p;
+    struct tm *ts;
+    struct tm data;
+    size_t len = 20;
+    int free_s = 0;
+
+    if (s == NULL) {
+        free_s = 1;
+        s = M_ASN1_UTCTIME_new();
+    }
+    if (s == NULL)
+        goto err;
+
+    ts = OPENSSL_gmtime(&t, &data);
+    if (ts == NULL)
+        goto err;
+
+    if (offset_day || offset_sec) {
+        if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
+            goto err;
+    }
+
+    if ((ts->tm_year < 50) || (ts->tm_year >= 150))
+        goto err;
+
+    p = (char *)s->data;
+    if ((p == NULL) || ((size_t)s->length < len)) {
+        p = OPENSSL_malloc(len);
+        if (p == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        if (s->data != NULL)
+            OPENSSL_free(s->data);
+        s->data = (unsigned char *)p;
+    }
+
+    BIO_snprintf(p, len, "%02d%02d%02d%02d%02d%02dZ", ts->tm_year % 100,
+                 ts->tm_mon + 1, ts->tm_mday, ts->tm_hour, ts->tm_min,
+                 ts->tm_sec);
+    s->length = strlen(p);
+    s->type = V_ASN1_UTCTIME;
+    return (s);
+ err:
+    if (free_s && s)
+        M_ASN1_UTCTIME_free(s);
+    return NULL;
+}
+
+int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t)
+{
+    struct tm stm, ttm;
+    int day, sec;
+
+    if (!asn1_utctime_to_tm(&stm, s))
+        return -2;
+
+    if (!OPENSSL_gmtime(&t, &ttm))
+        return -2;
+
+    if (!OPENSSL_gmtime_diff(&day, &sec, &ttm, &stm))
+        return -2;
+
+    if (day > 0)
+        return 1;
+    if (day < 0)
+        return -1;
+    if (sec > 0)
+        return 1;
+    if (sec < 0)
+        return -1;
+    return 0;
+}
+
+#if 0
+time_t ASN1_UTCTIME_get(const ASN1_UTCTIME *s)
+{
+    struct tm tm;
+    int offset;
+
+    OPENSSL_memset(&tm, '\0', sizeof tm);
+
+# define g2(p) (((p)[0]-'0')*10+(p)[1]-'0')
+    tm.tm_year = g2(s->data);
+    if (tm.tm_year < 50)
+        tm.tm_year += 100;
+    tm.tm_mon = g2(s->data + 2) - 1;
+    tm.tm_mday = g2(s->data + 4);
+    tm.tm_hour = g2(s->data + 6);
+    tm.tm_min = g2(s->data + 8);
+    tm.tm_sec = g2(s->data + 10);
+    if (s->data[12] == 'Z')
+        offset = 0;
+    else {
+        offset = g2(s->data + 13) * 60 + g2(s->data + 15);
+        if (s->data[12] == '-')
+            offset = -offset;
+    }
+# undef g2
+
+    return mktime(&tm) - offset * 60; /* FIXME: mktime assumes the current
+                                       * timezone instead of UTC, and unless
+                                       * we rewrite OpenSSL in Lisp we cannot
+                                       * locally change the timezone without
+                                       * possibly interfering with other
+                                       * parts of the program. timegm, which
+                                       * uses UTC, is non-standard. Also
+                                       * time_t is inappropriate for general
+                                       * UTC times because it may a 32 bit
+                                       * type. */
+}
+#endif

Pods/BoringSSL-GRPC/src/crypto/asn1/a_utf8.c

@@ -0,0 +1,236 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "asn1_locl.h"
+
+/* UTF8 utilities */
+
+/*
+ * This parses a UTF8 string one character at a time. It is passed a pointer
+ * to the string and the length of the string. It sets 'value' to the value
+ * of the current character. It returns the number of characters read or a
+ * negative error code: -1 = string too short -2 = illegal character -3 =
+ * subsequent characters not of the form 10xxxxxx -4 = character encoded
+ * incorrectly (not minimal length).
+ */
+
+int UTF8_getc(const unsigned char *str, int len, uint32_t *val)
+{
+    const unsigned char *p;
+    uint32_t value;
+    int ret;
+    if (len <= 0)
+        return 0;
+    p = str;
+
+    /* Check syntax and work out the encoded value (if correct) */
+    if ((*p & 0x80) == 0) {
+        value = *p++ & 0x7f;
+        ret = 1;
+    } else if ((*p & 0xe0) == 0xc0) {
+        if (len < 2)
+            return -1;
+        if ((p[1] & 0xc0) != 0x80)
+            return -3;
+        value = (*p++ & 0x1f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x80)
+            return -4;
+        ret = 2;
+    } else if ((*p & 0xf0) == 0xe0) {
+        if (len < 3)
+            return -1;
+        if (((p[1] & 0xc0) != 0x80)
+            || ((p[2] & 0xc0) != 0x80))
+            return -3;
+        value = (*p++ & 0xf) << 12;
+        value |= (*p++ & 0x3f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x800)
+            return -4;
+        ret = 3;
+    } else if ((*p & 0xf8) == 0xf0) {
+        if (len < 4)
+            return -1;
+        if (((p[1] & 0xc0) != 0x80)
+            || ((p[2] & 0xc0) != 0x80)
+            || ((p[3] & 0xc0) != 0x80))
+            return -3;
+        value = ((uint32_t)(*p++ & 0x7)) << 18;
+        value |= (*p++ & 0x3f) << 12;
+        value |= (*p++ & 0x3f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x10000)
+            return -4;
+        ret = 4;
+    } else if ((*p & 0xfc) == 0xf8) {
+        if (len < 5)
+            return -1;
+        if (((p[1] & 0xc0) != 0x80)
+            || ((p[2] & 0xc0) != 0x80)
+            || ((p[3] & 0xc0) != 0x80)
+            || ((p[4] & 0xc0) != 0x80))
+            return -3;
+        value = ((uint32_t)(*p++ & 0x3)) << 24;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 18;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 12;
+        value |= (*p++ & 0x3f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x200000)
+            return -4;
+        ret = 5;
+    } else if ((*p & 0xfe) == 0xfc) {
+        if (len < 6)
+            return -1;
+        if (((p[1] & 0xc0) != 0x80)
+            || ((p[2] & 0xc0) != 0x80)
+            || ((p[3] & 0xc0) != 0x80)
+            || ((p[4] & 0xc0) != 0x80)
+            || ((p[5] & 0xc0) != 0x80))
+            return -3;
+        value = ((uint32_t)(*p++ & 0x1)) << 30;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 24;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 18;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 12;
+        value |= (*p++ & 0x3f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x4000000)
+            return -4;
+        ret = 6;
+    } else
+        return -2;
+    *val = value;
+    return ret;
+}
+
+/*
+ * This takes a character 'value' and writes the UTF8 encoded value in 'str'
+ * where 'str' is a buffer containing 'len' characters. Returns the number of
+ * characters written or -1 if 'len' is too small. 'str' can be set to NULL
+ * in which case it just returns the number of characters. It will need at
+ * most 6 characters.
+ */
+
+int UTF8_putc(unsigned char *str, int len, uint32_t value)
+{
+    if (!str)
+        len = 6;                /* Maximum we will need */
+    else if (len <= 0)
+        return -1;
+    if (value < 0x80) {
+        if (str)
+            *str = (unsigned char)value;
+        return 1;
+    }
+    if (value < 0x800) {
+        if (len < 2)
+            return -1;
+        if (str) {
+            *str++ = (unsigned char)(((value >> 6) & 0x1f) | 0xc0);
+            *str = (unsigned char)((value & 0x3f) | 0x80);
+        }
+        return 2;
+    }
+    if (value < 0x10000) {
+        if (len < 3)
+            return -1;
+        if (str) {
+            *str++ = (unsigned char)(((value >> 12) & 0xf) | 0xe0);
+            *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+            *str = (unsigned char)((value & 0x3f) | 0x80);
+        }
+        return 3;
+    }
+    if (value < 0x200000) {
+        if (len < 4)
+            return -1;
+        if (str) {
+            *str++ = (unsigned char)(((value >> 18) & 0x7) | 0xf0);
+            *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
+            *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+            *str = (unsigned char)((value & 0x3f) | 0x80);
+        }
+        return 4;
+    }
+    if (value < 0x4000000) {
+        if (len < 5)
+            return -1;
+        if (str) {
+            *str++ = (unsigned char)(((value >> 24) & 0x3) | 0xf8);
+            *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
+            *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
+            *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+            *str = (unsigned char)((value & 0x3f) | 0x80);
+        }
+        return 5;
+    }
+    if (len < 6)
+        return -1;
+    if (str) {
+        *str++ = (unsigned char)(((value >> 30) & 0x1) | 0xfc);
+        *str++ = (unsigned char)(((value >> 24) & 0x3f) | 0x80);
+        *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
+        *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
+        *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+        *str = (unsigned char)((value & 0x3f) | 0x80);
+    }
+    return 6;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/a_utf8.c.grpc_back

@@ -0,0 +1,236 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "asn1_locl.h"
+
+/* UTF8 utilities */
+
+/*
+ * This parses a UTF8 string one character at a time. It is passed a pointer
+ * to the string and the length of the string. It sets 'value' to the value
+ * of the current character. It returns the number of characters read or a
+ * negative error code: -1 = string too short -2 = illegal character -3 =
+ * subsequent characters not of the form 10xxxxxx -4 = character encoded
+ * incorrectly (not minimal length).
+ */
+
+int UTF8_getc(const unsigned char *str, int len, uint32_t *val)
+{
+    const unsigned char *p;
+    uint32_t value;
+    int ret;
+    if (len <= 0)
+        return 0;
+    p = str;
+
+    /* Check syntax and work out the encoded value (if correct) */
+    if ((*p & 0x80) == 0) {
+        value = *p++ & 0x7f;
+        ret = 1;
+    } else if ((*p & 0xe0) == 0xc0) {
+        if (len < 2)
+            return -1;
+        if ((p[1] & 0xc0) != 0x80)
+            return -3;
+        value = (*p++ & 0x1f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x80)
+            return -4;
+        ret = 2;
+    } else if ((*p & 0xf0) == 0xe0) {
+        if (len < 3)
+            return -1;
+        if (((p[1] & 0xc0) != 0x80)
+            || ((p[2] & 0xc0) != 0x80))
+            return -3;
+        value = (*p++ & 0xf) << 12;
+        value |= (*p++ & 0x3f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x800)
+            return -4;
+        ret = 3;
+    } else if ((*p & 0xf8) == 0xf0) {
+        if (len < 4)
+            return -1;
+        if (((p[1] & 0xc0) != 0x80)
+            || ((p[2] & 0xc0) != 0x80)
+            || ((p[3] & 0xc0) != 0x80))
+            return -3;
+        value = ((uint32_t)(*p++ & 0x7)) << 18;
+        value |= (*p++ & 0x3f) << 12;
+        value |= (*p++ & 0x3f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x10000)
+            return -4;
+        ret = 4;
+    } else if ((*p & 0xfc) == 0xf8) {
+        if (len < 5)
+            return -1;
+        if (((p[1] & 0xc0) != 0x80)
+            || ((p[2] & 0xc0) != 0x80)
+            || ((p[3] & 0xc0) != 0x80)
+            || ((p[4] & 0xc0) != 0x80))
+            return -3;
+        value = ((uint32_t)(*p++ & 0x3)) << 24;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 18;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 12;
+        value |= (*p++ & 0x3f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x200000)
+            return -4;
+        ret = 5;
+    } else if ((*p & 0xfe) == 0xfc) {
+        if (len < 6)
+            return -1;
+        if (((p[1] & 0xc0) != 0x80)
+            || ((p[2] & 0xc0) != 0x80)
+            || ((p[3] & 0xc0) != 0x80)
+            || ((p[4] & 0xc0) != 0x80)
+            || ((p[5] & 0xc0) != 0x80))
+            return -3;
+        value = ((uint32_t)(*p++ & 0x1)) << 30;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 24;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 18;
+        value |= ((uint32_t)(*p++ & 0x3f)) << 12;
+        value |= (*p++ & 0x3f) << 6;
+        value |= *p++ & 0x3f;
+        if (value < 0x4000000)
+            return -4;
+        ret = 6;
+    } else
+        return -2;
+    *val = value;
+    return ret;
+}
+
+/*
+ * This takes a character 'value' and writes the UTF8 encoded value in 'str'
+ * where 'str' is a buffer containing 'len' characters. Returns the number of
+ * characters written or -1 if 'len' is too small. 'str' can be set to NULL
+ * in which case it just returns the number of characters. It will need at
+ * most 6 characters.
+ */
+
+int UTF8_putc(unsigned char *str, int len, uint32_t value)
+{
+    if (!str)
+        len = 6;                /* Maximum we will need */
+    else if (len <= 0)
+        return -1;
+    if (value < 0x80) {
+        if (str)
+            *str = (unsigned char)value;
+        return 1;
+    }
+    if (value < 0x800) {
+        if (len < 2)
+            return -1;
+        if (str) {
+            *str++ = (unsigned char)(((value >> 6) & 0x1f) | 0xc0);
+            *str = (unsigned char)((value & 0x3f) | 0x80);
+        }
+        return 2;
+    }
+    if (value < 0x10000) {
+        if (len < 3)
+            return -1;
+        if (str) {
+            *str++ = (unsigned char)(((value >> 12) & 0xf) | 0xe0);
+            *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+            *str = (unsigned char)((value & 0x3f) | 0x80);
+        }
+        return 3;
+    }
+    if (value < 0x200000) {
+        if (len < 4)
+            return -1;
+        if (str) {
+            *str++ = (unsigned char)(((value >> 18) & 0x7) | 0xf0);
+            *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
+            *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+            *str = (unsigned char)((value & 0x3f) | 0x80);
+        }
+        return 4;
+    }
+    if (value < 0x4000000) {
+        if (len < 5)
+            return -1;
+        if (str) {
+            *str++ = (unsigned char)(((value >> 24) & 0x3) | 0xf8);
+            *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
+            *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
+            *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+            *str = (unsigned char)((value & 0x3f) | 0x80);
+        }
+        return 5;
+    }
+    if (len < 6)
+        return -1;
+    if (str) {
+        *str++ = (unsigned char)(((value >> 30) & 0x1) | 0xfc);
+        *str++ = (unsigned char)(((value >> 24) & 0x3f) | 0x80);
+        *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80);
+        *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80);
+        *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80);
+        *str = (unsigned char)((value & 0x3f) | 0x80);
+    }
+    return 6;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/asn1_lib.c

@@ -0,0 +1,446 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/asn1_mac.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "../internal.h"
+
+
+/* Cross-module errors from crypto/x509/i2d_pr.c. */
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNSUPPORTED_PUBLIC_KEY_TYPE)
+
+/* Cross-module errors from crypto/x509/algorithm.c. */
+OPENSSL_DECLARE_ERROR_REASON(ASN1, CONTEXT_NOT_INITIALISED)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, DIGEST_AND_KEY_TYPE_NOT_SUPPORTED)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNKNOWN_MESSAGE_DIGEST_ALGORITHM)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNKNOWN_SIGNATURE_ALGORITHM)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, WRONG_PUBLIC_KEY_TYPE)
+/*
+ * Cross-module errors from crypto/x509/asn1_gen.c. TODO(davidben): Remove
+ * these once asn1_gen.c is gone.
+ */
+OPENSSL_DECLARE_ERROR_REASON(ASN1, DEPTH_EXCEEDED)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_BITSTRING_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_BOOLEAN)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_HEX)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_IMPLICIT_TAG)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_INTEGER)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_NESTED_TAGGING)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_NULL_VALUE)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_OBJECT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_TIME_VALUE)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INTEGER_NOT_ASCII_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_MODIFIER)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_NUMBER)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, LIST_ERROR)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, MISSING_VALUE)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, NOT_ASCII_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, OBJECT_NOT_ASCII_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, SEQUENCE_OR_SET_NEEDS_CONFIG)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, TIME_NOT_ASCII_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNKNOWN_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNKNOWN_TAG)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNSUPPORTED_TYPE)
+
+static int asn1_get_length(const unsigned char **pp, int *inf, long *rl,
+                           long max);
+static void asn1_put_length(unsigned char **pp, int length);
+
+int ASN1_get_object(const unsigned char **pp, long *plength, int *ptag,
+                    int *pclass, long omax)
+{
+    int i, ret;
+    long l;
+    const unsigned char *p = *pp;
+    int tag, xclass, inf;
+    long max = omax;
+
+    if (!max)
+        goto err;
+    ret = (*p & V_ASN1_CONSTRUCTED);
+    xclass = (*p & V_ASN1_PRIVATE);
+    i = *p & V_ASN1_PRIMITIVE_TAG;
+    if (i == V_ASN1_PRIMITIVE_TAG) { /* high-tag */
+        p++;
+        if (--max == 0)
+            goto err;
+        l = 0;
+        while (*p & 0x80) {
+            l <<= 7L;
+            l |= *(p++) & 0x7f;
+            if (--max == 0)
+                goto err;
+            if (l > (INT_MAX >> 7L))
+                goto err;
+        }
+        l <<= 7L;
+        l |= *(p++) & 0x7f;
+        tag = (int)l;
+        if (--max == 0)
+            goto err;
+    } else {
+        tag = i;
+        p++;
+        if (--max == 0)
+            goto err;
+    }
+
+    /* To avoid ambiguity with V_ASN1_NEG, impose a limit on universal tags. */
+    if (xclass == V_ASN1_UNIVERSAL && tag > V_ASN1_MAX_UNIVERSAL)
+        goto err;
+
+    *ptag = tag;
+    *pclass = xclass;
+    if (!asn1_get_length(&p, &inf, plength, max))
+        goto err;
+
+    if (inf && !(ret & V_ASN1_CONSTRUCTED))
+        goto err;
+
+#if 0
+    fprintf(stderr, "p=%d + *plength=%ld > omax=%ld + *pp=%d  (%d > %d)\n",
+            (int)p, *plength, omax, (int)*pp, (int)(p + *plength),
+            (int)(omax + *pp));
+
+#endif
+    if (*plength > (omax - (p - *pp))) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_TOO_LONG);
+        /*
+         * Set this so that even if things are not long enough the values are
+         * set correctly
+         */
+        ret |= 0x80;
+    }
+    *pp = p;
+    return (ret | inf);
+ err:
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_HEADER_TOO_LONG);
+    return (0x80);
+}
+
+static int asn1_get_length(const unsigned char **pp, int *inf, long *rl,
+                           long max)
+{
+    const unsigned char *p = *pp;
+    unsigned long ret = 0;
+    unsigned long i;
+
+    if (max-- < 1)
+        return 0;
+    if (*p == 0x80) {
+        *inf = 1;
+        ret = 0;
+        p++;
+    } else {
+        *inf = 0;
+        i = *p & 0x7f;
+        if (*(p++) & 0x80) {
+            if (i > sizeof(ret) || max < (long)i)
+                return 0;
+            while (i-- > 0) {
+                ret <<= 8L;
+                ret |= *(p++);
+            }
+        } else
+            ret = i;
+    }
+    /*
+     * Bound the length to comfortably fit in an int. Lengths in this module
+     * often switch between int and long without overflow checks.
+     */
+    if (ret > INT_MAX / 2)
+        return 0;
+    *pp = p;
+    *rl = (long)ret;
+    return 1;
+}
+
+/*
+ * class 0 is constructed constructed == 2 for indefinite length constructed
+ */
+void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
+                     int xclass)
+{
+    unsigned char *p = *pp;
+    int i, ttag;
+
+    i = (constructed) ? V_ASN1_CONSTRUCTED : 0;
+    i |= (xclass & V_ASN1_PRIVATE);
+    if (tag < 31)
+        *(p++) = i | (tag & V_ASN1_PRIMITIVE_TAG);
+    else {
+        *(p++) = i | V_ASN1_PRIMITIVE_TAG;
+        for (i = 0, ttag = tag; ttag > 0; i++)
+            ttag >>= 7;
+        ttag = i;
+        while (i-- > 0) {
+            p[i] = tag & 0x7f;
+            if (i != (ttag - 1))
+                p[i] |= 0x80;
+            tag >>= 7;
+        }
+        p += ttag;
+    }
+    if (constructed == 2)
+        *(p++) = 0x80;
+    else
+        asn1_put_length(&p, length);
+    *pp = p;
+}
+
+int ASN1_put_eoc(unsigned char **pp)
+{
+    unsigned char *p = *pp;
+    *p++ = 0;
+    *p++ = 0;
+    *pp = p;
+    return 2;
+}
+
+static void asn1_put_length(unsigned char **pp, int length)
+{
+    unsigned char *p = *pp;
+    int i, l;
+    if (length <= 127)
+        *(p++) = (unsigned char)length;
+    else {
+        l = length;
+        for (i = 0; l > 0; i++)
+            l >>= 8;
+        *(p++) = i | 0x80;
+        l = i;
+        while (i-- > 0) {
+            p[i] = length & 0xff;
+            length >>= 8;
+        }
+        p += l;
+    }
+    *pp = p;
+}
+
+int ASN1_object_size(int constructed, int length, int tag)
+{
+    int ret = 1;
+    if (length < 0)
+        return -1;
+    if (tag >= 31) {
+        while (tag > 0) {
+            tag >>= 7;
+            ret++;
+        }
+    }
+    if (constructed == 2) {
+        ret += 3;
+    } else {
+        ret++;
+        if (length > 127) {
+            int tmplen = length;
+            while (tmplen > 0) {
+                tmplen >>= 8;
+                ret++;
+            }
+        }
+    }
+    if (ret >= INT_MAX - length)
+        return -1;
+    return ret + length;
+}
+
+int ASN1_STRING_copy(ASN1_STRING *dst, const ASN1_STRING *str)
+{
+    if (str == NULL)
+        return 0;
+    dst->type = str->type;
+    if (!ASN1_STRING_set(dst, str->data, str->length))
+        return 0;
+    dst->flags = str->flags;
+    return 1;
+}
+
+ASN1_STRING *ASN1_STRING_dup(const ASN1_STRING *str)
+{
+    ASN1_STRING *ret;
+    if (!str)
+        return NULL;
+    ret = ASN1_STRING_new();
+    if (!ret)
+        return NULL;
+    if (!ASN1_STRING_copy(ret, str)) {
+        ASN1_STRING_free(ret);
+        return NULL;
+    }
+    return ret;
+}
+
+int ASN1_STRING_set(ASN1_STRING *str, const void *_data, int len)
+{
+    unsigned char *c;
+    const char *data = _data;
+
+    if (len < 0) {
+        if (data == NULL)
+            return (0);
+        else
+            len = strlen(data);
+    }
+    if ((str->length <= len) || (str->data == NULL)) {
+        c = str->data;
+        if (c == NULL)
+            str->data = OPENSSL_malloc(len + 1);
+        else
+            str->data = OPENSSL_realloc(c, len + 1);
+
+        if (str->data == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            str->data = c;
+            return (0);
+        }
+    }
+    str->length = len;
+    if (data != NULL) {
+        OPENSSL_memcpy(str->data, data, len);
+        /* an allowance for strings :-) */
+        str->data[len] = '\0';
+    }
+    return (1);
+}
+
+void ASN1_STRING_set0(ASN1_STRING *str, void *data, int len)
+{
+    if (str->data)
+        OPENSSL_free(str->data);
+    str->data = data;
+    str->length = len;
+}
+
+ASN1_STRING *ASN1_STRING_new(void)
+{
+    return (ASN1_STRING_type_new(V_ASN1_OCTET_STRING));
+}
+
+ASN1_STRING *ASN1_STRING_type_new(int type)
+{
+    ASN1_STRING *ret;
+
+    ret = (ASN1_STRING *)OPENSSL_malloc(sizeof(ASN1_STRING));
+    if (ret == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return (NULL);
+    }
+    ret->length = 0;
+    ret->type = type;
+    ret->data = NULL;
+    ret->flags = 0;
+    return (ret);
+}
+
+void ASN1_STRING_free(ASN1_STRING *a)
+{
+    if (a == NULL)
+        return;
+    if (a->data && !(a->flags & ASN1_STRING_FLAG_NDEF))
+        OPENSSL_free(a->data);
+    OPENSSL_free(a);
+}
+
+int ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
+{
+    int i;
+
+    i = (a->length - b->length);
+    if (i == 0) {
+        i = OPENSSL_memcmp(a->data, b->data, a->length);
+        if (i == 0)
+            return (a->type - b->type);
+        else
+            return (i);
+    } else
+        return (i);
+}
+
+int ASN1_STRING_length(const ASN1_STRING *x)
+{
+    return M_ASN1_STRING_length(x);
+}
+
+void ASN1_STRING_length_set(ASN1_STRING *x, int len)
+{
+    M_ASN1_STRING_length_set(x, len);
+    return;
+}
+
+int ASN1_STRING_type(ASN1_STRING *x)
+{
+    return M_ASN1_STRING_type(x);
+}
+
+unsigned char *ASN1_STRING_data(ASN1_STRING *x)
+{
+    return M_ASN1_STRING_data(x);
+}
+
+const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *x)
+{
+    return x->data;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/asn1_lib.c.grpc_back

@@ -0,0 +1,446 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/asn1_mac.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "../internal.h"
+
+
+/* Cross-module errors from crypto/x509/i2d_pr.c. */
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNSUPPORTED_PUBLIC_KEY_TYPE)
+
+/* Cross-module errors from crypto/x509/algorithm.c. */
+OPENSSL_DECLARE_ERROR_REASON(ASN1, CONTEXT_NOT_INITIALISED)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, DIGEST_AND_KEY_TYPE_NOT_SUPPORTED)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNKNOWN_MESSAGE_DIGEST_ALGORITHM)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNKNOWN_SIGNATURE_ALGORITHM)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, WRONG_PUBLIC_KEY_TYPE)
+/*
+ * Cross-module errors from crypto/x509/asn1_gen.c. TODO(davidben): Remove
+ * these once asn1_gen.c is gone.
+ */
+OPENSSL_DECLARE_ERROR_REASON(ASN1, DEPTH_EXCEEDED)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_BITSTRING_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_BOOLEAN)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_HEX)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_IMPLICIT_TAG)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_INTEGER)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_NESTED_TAGGING)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_NULL_VALUE)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_OBJECT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ILLEGAL_TIME_VALUE)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INTEGER_NOT_ASCII_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_MODIFIER)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, INVALID_NUMBER)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, LIST_ERROR)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, MISSING_VALUE)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, NOT_ASCII_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, OBJECT_NOT_ASCII_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, SEQUENCE_OR_SET_NEEDS_CONFIG)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, TIME_NOT_ASCII_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNKNOWN_FORMAT)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNKNOWN_TAG)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, UNSUPPORTED_TYPE)
+
+static int asn1_get_length(const unsigned char **pp, int *inf, long *rl,
+                           long max);
+static void asn1_put_length(unsigned char **pp, int length);
+
+int ASN1_get_object(const unsigned char **pp, long *plength, int *ptag,
+                    int *pclass, long omax)
+{
+    int i, ret;
+    long l;
+    const unsigned char *p = *pp;
+    int tag, xclass, inf;
+    long max = omax;
+
+    if (!max)
+        goto err;
+    ret = (*p & V_ASN1_CONSTRUCTED);
+    xclass = (*p & V_ASN1_PRIVATE);
+    i = *p & V_ASN1_PRIMITIVE_TAG;
+    if (i == V_ASN1_PRIMITIVE_TAG) { /* high-tag */
+        p++;
+        if (--max == 0)
+            goto err;
+        l = 0;
+        while (*p & 0x80) {
+            l <<= 7L;
+            l |= *(p++) & 0x7f;
+            if (--max == 0)
+                goto err;
+            if (l > (INT_MAX >> 7L))
+                goto err;
+        }
+        l <<= 7L;
+        l |= *(p++) & 0x7f;
+        tag = (int)l;
+        if (--max == 0)
+            goto err;
+    } else {
+        tag = i;
+        p++;
+        if (--max == 0)
+            goto err;
+    }
+
+    /* To avoid ambiguity with V_ASN1_NEG, impose a limit on universal tags. */
+    if (xclass == V_ASN1_UNIVERSAL && tag > V_ASN1_MAX_UNIVERSAL)
+        goto err;
+
+    *ptag = tag;
+    *pclass = xclass;
+    if (!asn1_get_length(&p, &inf, plength, max))
+        goto err;
+
+    if (inf && !(ret & V_ASN1_CONSTRUCTED))
+        goto err;
+
+#if 0
+    fprintf(stderr, "p=%d + *plength=%ld > omax=%ld + *pp=%d  (%d > %d)\n",
+            (int)p, *plength, omax, (int)*pp, (int)(p + *plength),
+            (int)(omax + *pp));
+
+#endif
+    if (*plength > (omax - (p - *pp))) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_TOO_LONG);
+        /*
+         * Set this so that even if things are not long enough the values are
+         * set correctly
+         */
+        ret |= 0x80;
+    }
+    *pp = p;
+    return (ret | inf);
+ err:
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_HEADER_TOO_LONG);
+    return (0x80);
+}
+
+static int asn1_get_length(const unsigned char **pp, int *inf, long *rl,
+                           long max)
+{
+    const unsigned char *p = *pp;
+    unsigned long ret = 0;
+    unsigned long i;
+
+    if (max-- < 1)
+        return 0;
+    if (*p == 0x80) {
+        *inf = 1;
+        ret = 0;
+        p++;
+    } else {
+        *inf = 0;
+        i = *p & 0x7f;
+        if (*(p++) & 0x80) {
+            if (i > sizeof(ret) || max < (long)i)
+                return 0;
+            while (i-- > 0) {
+                ret <<= 8L;
+                ret |= *(p++);
+            }
+        } else
+            ret = i;
+    }
+    /*
+     * Bound the length to comfortably fit in an int. Lengths in this module
+     * often switch between int and long without overflow checks.
+     */
+    if (ret > INT_MAX / 2)
+        return 0;
+    *pp = p;
+    *rl = (long)ret;
+    return 1;
+}
+
+/*
+ * class 0 is constructed constructed == 2 for indefinite length constructed
+ */
+void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
+                     int xclass)
+{
+    unsigned char *p = *pp;
+    int i, ttag;
+
+    i = (constructed) ? V_ASN1_CONSTRUCTED : 0;
+    i |= (xclass & V_ASN1_PRIVATE);
+    if (tag < 31)
+        *(p++) = i | (tag & V_ASN1_PRIMITIVE_TAG);
+    else {
+        *(p++) = i | V_ASN1_PRIMITIVE_TAG;
+        for (i = 0, ttag = tag; ttag > 0; i++)
+            ttag >>= 7;
+        ttag = i;
+        while (i-- > 0) {
+            p[i] = tag & 0x7f;
+            if (i != (ttag - 1))
+                p[i] |= 0x80;
+            tag >>= 7;
+        }
+        p += ttag;
+    }
+    if (constructed == 2)
+        *(p++) = 0x80;
+    else
+        asn1_put_length(&p, length);
+    *pp = p;
+}
+
+int ASN1_put_eoc(unsigned char **pp)
+{
+    unsigned char *p = *pp;
+    *p++ = 0;
+    *p++ = 0;
+    *pp = p;
+    return 2;
+}
+
+static void asn1_put_length(unsigned char **pp, int length)
+{
+    unsigned char *p = *pp;
+    int i, l;
+    if (length <= 127)
+        *(p++) = (unsigned char)length;
+    else {
+        l = length;
+        for (i = 0; l > 0; i++)
+            l >>= 8;
+        *(p++) = i | 0x80;
+        l = i;
+        while (i-- > 0) {
+            p[i] = length & 0xff;
+            length >>= 8;
+        }
+        p += l;
+    }
+    *pp = p;
+}
+
+int ASN1_object_size(int constructed, int length, int tag)
+{
+    int ret = 1;
+    if (length < 0)
+        return -1;
+    if (tag >= 31) {
+        while (tag > 0) {
+            tag >>= 7;
+            ret++;
+        }
+    }
+    if (constructed == 2) {
+        ret += 3;
+    } else {
+        ret++;
+        if (length > 127) {
+            int tmplen = length;
+            while (tmplen > 0) {
+                tmplen >>= 8;
+                ret++;
+            }
+        }
+    }
+    if (ret >= INT_MAX - length)
+        return -1;
+    return ret + length;
+}
+
+int ASN1_STRING_copy(ASN1_STRING *dst, const ASN1_STRING *str)
+{
+    if (str == NULL)
+        return 0;
+    dst->type = str->type;
+    if (!ASN1_STRING_set(dst, str->data, str->length))
+        return 0;
+    dst->flags = str->flags;
+    return 1;
+}
+
+ASN1_STRING *ASN1_STRING_dup(const ASN1_STRING *str)
+{
+    ASN1_STRING *ret;
+    if (!str)
+        return NULL;
+    ret = ASN1_STRING_new();
+    if (!ret)
+        return NULL;
+    if (!ASN1_STRING_copy(ret, str)) {
+        ASN1_STRING_free(ret);
+        return NULL;
+    }
+    return ret;
+}
+
+int ASN1_STRING_set(ASN1_STRING *str, const void *_data, int len)
+{
+    unsigned char *c;
+    const char *data = _data;
+
+    if (len < 0) {
+        if (data == NULL)
+            return (0);
+        else
+            len = strlen(data);
+    }
+    if ((str->length <= len) || (str->data == NULL)) {
+        c = str->data;
+        if (c == NULL)
+            str->data = OPENSSL_malloc(len + 1);
+        else
+            str->data = OPENSSL_realloc(c, len + 1);
+
+        if (str->data == NULL) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            str->data = c;
+            return (0);
+        }
+    }
+    str->length = len;
+    if (data != NULL) {
+        OPENSSL_memcpy(str->data, data, len);
+        /* an allowance for strings :-) */
+        str->data[len] = '\0';
+    }
+    return (1);
+}
+
+void ASN1_STRING_set0(ASN1_STRING *str, void *data, int len)
+{
+    if (str->data)
+        OPENSSL_free(str->data);
+    str->data = data;
+    str->length = len;
+}
+
+ASN1_STRING *ASN1_STRING_new(void)
+{
+    return (ASN1_STRING_type_new(V_ASN1_OCTET_STRING));
+}
+
+ASN1_STRING *ASN1_STRING_type_new(int type)
+{
+    ASN1_STRING *ret;
+
+    ret = (ASN1_STRING *)OPENSSL_malloc(sizeof(ASN1_STRING));
+    if (ret == NULL) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return (NULL);
+    }
+    ret->length = 0;
+    ret->type = type;
+    ret->data = NULL;
+    ret->flags = 0;
+    return (ret);
+}
+
+void ASN1_STRING_free(ASN1_STRING *a)
+{
+    if (a == NULL)
+        return;
+    if (a->data && !(a->flags & ASN1_STRING_FLAG_NDEF))
+        OPENSSL_free(a->data);
+    OPENSSL_free(a);
+}
+
+int ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
+{
+    int i;
+
+    i = (a->length - b->length);
+    if (i == 0) {
+        i = OPENSSL_memcmp(a->data, b->data, a->length);
+        if (i == 0)
+            return (a->type - b->type);
+        else
+            return (i);
+    } else
+        return (i);
+}
+
+int ASN1_STRING_length(const ASN1_STRING *x)
+{
+    return M_ASN1_STRING_length(x);
+}
+
+void ASN1_STRING_length_set(ASN1_STRING *x, int len)
+{
+    M_ASN1_STRING_length_set(x, len);
+    return;
+}
+
+int ASN1_STRING_type(ASN1_STRING *x)
+{
+    return M_ASN1_STRING_type(x);
+}
+
+unsigned char *ASN1_STRING_data(ASN1_STRING *x)
+{
+    return M_ASN1_STRING_data(x);
+}
+
+const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *x)
+{
+    return x->data;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/asn1_locl.h

@@ -0,0 +1,104 @@
+/* asn1t.h */
+/*
+ * Written by Dr Stephen N Henson ([email protected]) for the OpenSSL project
+ * 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    [email protected].
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * ([email protected]).  This product includes software written by Tim
+ * Hudson ([email protected]).
+ *
+ */
+
+#ifndef OPENSSL_HEADER_ASN1_ASN1_LOCL_H
+#define OPENSSL_HEADER_ASN1_ASN1_LOCL_H
+
+#include <time.h>
+
+#include <openssl_grpc/asn1.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+/* Wrapper functions for time functions. */
+
+/* OPENSSL_gmtime wraps |gmtime_r|. See the manual page for that function. */
+struct tm *OPENSSL_gmtime(const time_t *time, struct tm *result);
+
+/* OPENSSL_gmtime_adj updates |tm| by adding |offset_day| days and |offset_sec|
+ * seconds. */
+int OPENSSL_gmtime_adj(struct tm *tm, int offset_day, long offset_sec);
+
+/* OPENSSL_gmtime_diff calculates the difference between |from| and |to| and
+ * outputs the difference as a number of days and seconds in |*out_days| and
+ * |*out_secs|. */
+int OPENSSL_gmtime_diff(int *out_days, int *out_secs, const struct tm *from,
+                        const struct tm *to);
+
+
+/* Internal ASN1 structures and functions: not for application use */
+
+int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d);
+int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d);
+
+void asn1_item_combine_free(ASN1_VALUE **pval, const ASN1_ITEM *it,
+                            int combine);
+
+int UTF8_getc(const unsigned char *str, int len, uint32_t *val);
+int UTF8_putc(unsigned char *str, int len, uint32_t value);
+
+
+#if defined(__cplusplus)
+}  /* extern C */
+#endif
+
+#endif  /* OPENSSL_HEADER_ASN1_ASN1_LOCL_H */

Pods/BoringSSL-GRPC/src/crypto/asn1/asn1_locl.h.grpc_back

@@ -0,0 +1,104 @@
+/* asn1t.h */
+/*
+ * Written by Dr Stephen N Henson ([email protected]) for the OpenSSL project
+ * 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    [email protected].
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * ([email protected]).  This product includes software written by Tim
+ * Hudson ([email protected]).
+ *
+ */
+
+#ifndef OPENSSL_HEADER_ASN1_ASN1_LOCL_H
+#define OPENSSL_HEADER_ASN1_ASN1_LOCL_H
+
+#include <time.h>
+
+#include <openssl/asn1.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+/* Wrapper functions for time functions. */
+
+/* OPENSSL_gmtime wraps |gmtime_r|. See the manual page for that function. */
+struct tm *OPENSSL_gmtime(const time_t *time, struct tm *result);
+
+/* OPENSSL_gmtime_adj updates |tm| by adding |offset_day| days and |offset_sec|
+ * seconds. */
+int OPENSSL_gmtime_adj(struct tm *tm, int offset_day, long offset_sec);
+
+/* OPENSSL_gmtime_diff calculates the difference between |from| and |to| and
+ * outputs the difference as a number of days and seconds in |*out_days| and
+ * |*out_secs|. */
+int OPENSSL_gmtime_diff(int *out_days, int *out_secs, const struct tm *from,
+                        const struct tm *to);
+
+
+/* Internal ASN1 structures and functions: not for application use */
+
+int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d);
+int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d);
+
+void asn1_item_combine_free(ASN1_VALUE **pval, const ASN1_ITEM *it,
+                            int combine);
+
+int UTF8_getc(const unsigned char *str, int len, uint32_t *val);
+int UTF8_putc(unsigned char *str, int len, uint32_t value);
+
+
+#if defined(__cplusplus)
+}  /* extern C */
+#endif
+
+#endif  /* OPENSSL_HEADER_ASN1_ASN1_LOCL_H */

Pods/BoringSSL-GRPC/src/crypto/asn1/asn1_par.c

@@ -0,0 +1,80 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+
+const char *ASN1_tag2str(int tag)
+{
+    static const char *const tag2str[] = {
+        "EOC", "BOOLEAN", "INTEGER", "BIT STRING", "OCTET STRING", /* 0-4 */
+        "NULL", "OBJECT", "OBJECT DESCRIPTOR", "EXTERNAL", "REAL", /* 5-9 */
+        "ENUMERATED", "<ASN1 11>", "UTF8STRING", "<ASN1 13>", /* 10-13 */
+        "<ASN1 14>", "<ASN1 15>", "SEQUENCE", "SET", /* 15-17 */
+        "NUMERICSTRING", "PRINTABLESTRING", "T61STRING", /* 18-20 */
+        "VIDEOTEXSTRING", "IA5STRING", "UTCTIME", "GENERALIZEDTIME", /* 21-24
+                                                                      */
+        "GRAPHICSTRING", "VISIBLESTRING", "GENERALSTRING", /* 25-27 */
+        "UNIVERSALSTRING", "<ASN1 29>", "BMPSTRING" /* 28-30 */
+    };
+
+    if ((tag == V_ASN1_NEG_INTEGER) || (tag == V_ASN1_NEG_ENUMERATED))
+        tag &= ~0x100;
+
+    if (tag < 0 || tag > 30)
+        return "(unknown)";
+    return tag2str[tag];
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/asn1_par.c.grpc_back

@@ -0,0 +1,80 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+
+const char *ASN1_tag2str(int tag)
+{
+    static const char *const tag2str[] = {
+        "EOC", "BOOLEAN", "INTEGER", "BIT STRING", "OCTET STRING", /* 0-4 */
+        "NULL", "OBJECT", "OBJECT DESCRIPTOR", "EXTERNAL", "REAL", /* 5-9 */
+        "ENUMERATED", "<ASN1 11>", "UTF8STRING", "<ASN1 13>", /* 10-13 */
+        "<ASN1 14>", "<ASN1 15>", "SEQUENCE", "SET", /* 15-17 */
+        "NUMERICSTRING", "PRINTABLESTRING", "T61STRING", /* 18-20 */
+        "VIDEOTEXSTRING", "IA5STRING", "UTCTIME", "GENERALIZEDTIME", /* 21-24
+                                                                      */
+        "GRAPHICSTRING", "VISIBLESTRING", "GENERALSTRING", /* 25-27 */
+        "UNIVERSALSTRING", "<ASN1 29>", "BMPSTRING" /* 28-30 */
+    };
+
+    if ((tag == V_ASN1_NEG_INTEGER) || (tag == V_ASN1_NEG_ENUMERATED))
+        tag &= ~0x100;
+
+    if (tag < 0 || tag > 30)
+        return "(unknown)";
+    return tag2str[tag];
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/asn_pack.c

@@ -0,0 +1,105 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+/* ASN1_ITEM versions of the above */
+
+ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct)
+{
+    ASN1_STRING *octmp;
+
+    if (!oct || !*oct) {
+        if (!(octmp = ASN1_STRING_new())) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return NULL;
+        }
+        if (oct)
+            *oct = octmp;
+    } else
+        octmp = *oct;
+
+    if (octmp->data) {
+        OPENSSL_free(octmp->data);
+        octmp->data = NULL;
+    }
+
+    if (!(octmp->length = ASN1_item_i2d(obj, &octmp->data, it))) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_ENCODE_ERROR);
+        return NULL;
+    }
+    if (!octmp->data) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    return octmp;
+}
+
+/* Extract an ASN1 object from an ASN1_STRING */
+
+void *ASN1_item_unpack(ASN1_STRING *oct, const ASN1_ITEM *it)
+{
+    const unsigned char *p;
+    void *ret;
+
+    p = oct->data;
+    if (!(ret = ASN1_item_d2i(NULL, &p, oct->length, it)))
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+    return ret;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/asn_pack.c.grpc_back

@@ -0,0 +1,105 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+/* ASN1_ITEM versions of the above */
+
+ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct)
+{
+    ASN1_STRING *octmp;
+
+    if (!oct || !*oct) {
+        if (!(octmp = ASN1_STRING_new())) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            return NULL;
+        }
+        if (oct)
+            *oct = octmp;
+    } else
+        octmp = *oct;
+
+    if (octmp->data) {
+        OPENSSL_free(octmp->data);
+        octmp->data = NULL;
+    }
+
+    if (!(octmp->length = ASN1_item_i2d(obj, &octmp->data, it))) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_ENCODE_ERROR);
+        return NULL;
+    }
+    if (!octmp->data) {
+        OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    return octmp;
+}
+
+/* Extract an ASN1 object from an ASN1_STRING */
+
+void *ASN1_item_unpack(ASN1_STRING *oct, const ASN1_ITEM *it)
+{
+    const unsigned char *p;
+    void *ret;
+
+    p = oct->data;
+    if (!(ret = ASN1_item_d2i(NULL, &p, oct->length, it)))
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+    return ret;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/f_enum.c

@@ -0,0 +1,93 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/bio.h>
+
+/* Based on a_int.c: equivalent ENUMERATED functions */
+
+int i2a_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *a)
+{
+    int i, n = 0;
+    static const char *h = "0123456789ABCDEF";
+    char buf[2];
+
+    if (a == NULL)
+        return (0);
+
+    if (a->length == 0) {
+        if (BIO_write(bp, "00", 2) != 2)
+            goto err;
+        n = 2;
+    } else {
+        for (i = 0; i < a->length; i++) {
+            if ((i != 0) && (i % 35 == 0)) {
+                if (BIO_write(bp, "\\\n", 2) != 2)
+                    goto err;
+                n += 2;
+            }
+            buf[0] = h[((unsigned char)a->data[i] >> 4) & 0x0f];
+            buf[1] = h[((unsigned char)a->data[i]) & 0x0f];
+            if (BIO_write(bp, buf, 2) != 2)
+                goto err;
+            n += 2;
+        }
+    }
+    return (n);
+ err:
+    return (-1);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/f_enum.c.grpc_back

@@ -0,0 +1,93 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/bio.h>
+
+/* Based on a_int.c: equivalent ENUMERATED functions */
+
+int i2a_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *a)
+{
+    int i, n = 0;
+    static const char *h = "0123456789ABCDEF";
+    char buf[2];
+
+    if (a == NULL)
+        return (0);
+
+    if (a->length == 0) {
+        if (BIO_write(bp, "00", 2) != 2)
+            goto err;
+        n = 2;
+    } else {
+        for (i = 0; i < a->length; i++) {
+            if ((i != 0) && (i % 35 == 0)) {
+                if (BIO_write(bp, "\\\n", 2) != 2)
+                    goto err;
+                n += 2;
+            }
+            buf[0] = h[((unsigned char)a->data[i] >> 4) & 0x0f];
+            buf[1] = h[((unsigned char)a->data[i]) & 0x0f];
+            if (BIO_write(bp, buf, 2) != 2)
+                goto err;
+            n += 2;
+        }
+    }
+    return (n);
+ err:
+    return (-1);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/f_int.c

@@ -0,0 +1,97 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/bio.h>
+
+int i2a_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *a)
+{
+    int i, n = 0;
+    static const char *h = "0123456789ABCDEF";
+    char buf[2];
+
+    if (a == NULL)
+        return (0);
+
+    if (a->type & V_ASN1_NEG) {
+        if (BIO_write(bp, "-", 1) != 1)
+            goto err;
+        n = 1;
+    }
+
+    if (a->length == 0) {
+        if (BIO_write(bp, "00", 2) != 2)
+            goto err;
+        n += 2;
+    } else {
+        for (i = 0; i < a->length; i++) {
+            if ((i != 0) && (i % 35 == 0)) {
+                if (BIO_write(bp, "\\\n", 2) != 2)
+                    goto err;
+                n += 2;
+            }
+            buf[0] = h[((unsigned char)a->data[i] >> 4) & 0x0f];
+            buf[1] = h[((unsigned char)a->data[i]) & 0x0f];
+            if (BIO_write(bp, buf, 2) != 2)
+                goto err;
+            n += 2;
+        }
+    }
+    return (n);
+ err:
+    return (-1);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/f_int.c.grpc_back

@@ -0,0 +1,97 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/bio.h>
+
+int i2a_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *a)
+{
+    int i, n = 0;
+    static const char *h = "0123456789ABCDEF";
+    char buf[2];
+
+    if (a == NULL)
+        return (0);
+
+    if (a->type & V_ASN1_NEG) {
+        if (BIO_write(bp, "-", 1) != 1)
+            goto err;
+        n = 1;
+    }
+
+    if (a->length == 0) {
+        if (BIO_write(bp, "00", 2) != 2)
+            goto err;
+        n += 2;
+    } else {
+        for (i = 0; i < a->length; i++) {
+            if ((i != 0) && (i % 35 == 0)) {
+                if (BIO_write(bp, "\\\n", 2) != 2)
+                    goto err;
+                n += 2;
+            }
+            buf[0] = h[((unsigned char)a->data[i] >> 4) & 0x0f];
+            buf[1] = h[((unsigned char)a->data[i]) & 0x0f];
+            if (BIO_write(bp, buf, 2) != 2)
+                goto err;
+            n += 2;
+        }
+    }
+    return (n);
+ err:
+    return (-1);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/f_string.c

@@ -0,0 +1,91 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/bio.h>
+
+int i2a_ASN1_STRING(BIO *bp, ASN1_STRING *a, int type)
+{
+    int i, n = 0;
+    static const char *h = "0123456789ABCDEF";
+    char buf[2];
+
+    if (a == NULL)
+        return (0);
+
+    if (a->length == 0) {
+        if (BIO_write(bp, "0", 1) != 1)
+            goto err;
+        n = 1;
+    } else {
+        for (i = 0; i < a->length; i++) {
+            if ((i != 0) && (i % 35 == 0)) {
+                if (BIO_write(bp, "\\\n", 2) != 2)
+                    goto err;
+                n += 2;
+            }
+            buf[0] = h[((unsigned char)a->data[i] >> 4) & 0x0f];
+            buf[1] = h[((unsigned char)a->data[i]) & 0x0f];
+            if (BIO_write(bp, buf, 2) != 2)
+                goto err;
+            n += 2;
+        }
+    }
+    return (n);
+ err:
+    return (-1);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/f_string.c.grpc_back

@@ -0,0 +1,91 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/bio.h>
+
+int i2a_ASN1_STRING(BIO *bp, ASN1_STRING *a, int type)
+{
+    int i, n = 0;
+    static const char *h = "0123456789ABCDEF";
+    char buf[2];
+
+    if (a == NULL)
+        return (0);
+
+    if (a->length == 0) {
+        if (BIO_write(bp, "0", 1) != 1)
+            goto err;
+        n = 1;
+    } else {
+        for (i = 0; i < a->length; i++) {
+            if ((i != 0) && (i % 35 == 0)) {
+                if (BIO_write(bp, "\\\n", 2) != 2)
+                    goto err;
+                n += 2;
+            }
+            buf[0] = h[((unsigned char)a->data[i] >> 4) & 0x0f];
+            buf[1] = h[((unsigned char)a->data[i]) & 0x0f];
+            if (BIO_write(bp, buf, 2) != 2)
+                goto err;
+            n += 2;
+        }
+    }
+    return (n);
+ err:
+    return (-1);
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_enc.c

@@ -0,0 +1,664 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/asn1t.h>
+#include <openssl_grpc/mem.h>
+
+#include "../internal.h"
+
+
+static int asn1_i2d_ex_primitive(ASN1_VALUE **pval, unsigned char **out,
+                                 const ASN1_ITEM *it, int tag, int aclass);
+static int asn1_set_seq_out(STACK_OF(ASN1_VALUE) *sk, unsigned char **out,
+                            int skcontlen, const ASN1_ITEM *item,
+                            int do_sort, int iclass);
+static int asn1_template_ex_i2d(ASN1_VALUE **pval, unsigned char **out,
+                                const ASN1_TEMPLATE *tt, int tag, int aclass);
+static int asn1_item_flags_i2d(ASN1_VALUE *val, unsigned char **out,
+                               const ASN1_ITEM *it, int flags);
+
+/*
+ * Top level i2d equivalents: the 'ndef' variant instructs the encoder to use
+ * indefinite length constructed encoding, where appropriate
+ */
+
+int ASN1_item_ndef_i2d(ASN1_VALUE *val, unsigned char **out,
+                       const ASN1_ITEM *it)
+{
+    return asn1_item_flags_i2d(val, out, it, ASN1_TFLG_NDEF);
+}
+
+int ASN1_item_i2d(ASN1_VALUE *val, unsigned char **out, const ASN1_ITEM *it)
+{
+    return asn1_item_flags_i2d(val, out, it, 0);
+}
+
+/*
+ * Encode an ASN1 item, this is use by the standard 'i2d' function. 'out'
+ * points to a buffer to output the data to. The new i2d has one additional
+ * feature. If the output buffer is NULL (i.e. *out == NULL) then a buffer is
+ * allocated and populated with the encoding.
+ */
+
+static int asn1_item_flags_i2d(ASN1_VALUE *val, unsigned char **out,
+                               const ASN1_ITEM *it, int flags)
+{
+    if (out && !*out) {
+        unsigned char *p, *buf;
+        int len;
+        len = ASN1_item_ex_i2d(&val, NULL, it, -1, flags);
+        if (len <= 0)
+            return len;
+        buf = OPENSSL_malloc(len);
+        if (!buf)
+            return -1;
+        p = buf;
+        ASN1_item_ex_i2d(&val, &p, it, -1, flags);
+        *out = buf;
+        return len;
+    }
+
+    return ASN1_item_ex_i2d(&val, out, it, -1, flags);
+}
+
+/*
+ * Encode an item, taking care of IMPLICIT tagging (if any). This function
+ * performs the normal item handling: it can be used in external types.
+ */
+
+int ASN1_item_ex_i2d(ASN1_VALUE **pval, unsigned char **out,
+                     const ASN1_ITEM *it, int tag, int aclass)
+{
+    const ASN1_TEMPLATE *tt = NULL;
+    unsigned char *p = NULL;
+    int i, seqcontlen, seqlen, ndef = 1;
+    const ASN1_COMPAT_FUNCS *cf;
+    const ASN1_EXTERN_FUNCS *ef;
+    const ASN1_AUX *aux = it->funcs;
+    ASN1_aux_cb *asn1_cb = 0;
+
+    if ((it->itype != ASN1_ITYPE_PRIMITIVE) && !*pval)
+        return 0;
+
+    if (aux && aux->asn1_cb)
+        asn1_cb = aux->asn1_cb;
+
+    switch (it->itype) {
+
+    case ASN1_ITYPE_PRIMITIVE:
+        if (it->templates)
+            return asn1_template_ex_i2d(pval, out, it->templates,
+                                        tag, aclass);
+        return asn1_i2d_ex_primitive(pval, out, it, tag, aclass);
+        break;
+
+    case ASN1_ITYPE_MSTRING:
+        return asn1_i2d_ex_primitive(pval, out, it, -1, aclass);
+
+    case ASN1_ITYPE_CHOICE:
+        if (asn1_cb && !asn1_cb(ASN1_OP_I2D_PRE, pval, it, NULL))
+            return 0;
+        i = asn1_get_choice_selector(pval, it);
+        if ((i >= 0) && (i < it->tcount)) {
+            ASN1_VALUE **pchval;
+            const ASN1_TEMPLATE *chtt;
+            chtt = it->templates + i;
+            pchval = asn1_get_field_ptr(pval, chtt);
+            return asn1_template_ex_i2d(pchval, out, chtt, -1, aclass);
+        }
+        /* Fixme: error condition if selector out of range */
+        if (asn1_cb && !asn1_cb(ASN1_OP_I2D_POST, pval, it, NULL))
+            return 0;
+        break;
+
+    case ASN1_ITYPE_EXTERN:
+        /* If new style i2d it does all the work */
+        ef = it->funcs;
+        return ef->asn1_ex_i2d(pval, out, it, tag, aclass);
+
+    case ASN1_ITYPE_COMPAT:
+        /* old style hackery... */
+        cf = it->funcs;
+        if (out)
+            p = *out;
+        i = cf->asn1_i2d(*pval, out);
+        /*
+         * Fixup for IMPLICIT tag: note this messes up for tags > 30, but so
+         * did the old code. Tags > 30 are very rare anyway.
+         */
+        if (out && (tag != -1))
+            *p = aclass | tag | (*p & V_ASN1_CONSTRUCTED);
+        return i;
+
+    case ASN1_ITYPE_NDEF_SEQUENCE:
+        /* Use indefinite length constructed if requested */
+        if (aclass & ASN1_TFLG_NDEF)
+            ndef = 2;
+        OPENSSL_FALLTHROUGH;
+
+    case ASN1_ITYPE_SEQUENCE:
+        i = asn1_enc_restore(&seqcontlen, out, pval, it);
+        /* An error occurred */
+        if (i < 0)
+            return 0;
+        /* We have a valid cached encoding... */
+        if (i > 0)
+            return seqcontlen;
+        /* Otherwise carry on */
+        seqcontlen = 0;
+        /* If no IMPLICIT tagging set to SEQUENCE, UNIVERSAL */
+        if (tag == -1) {
+            tag = V_ASN1_SEQUENCE;
+            /* Retain any other flags in aclass */
+            aclass = (aclass & ~ASN1_TFLG_TAG_CLASS)
+                | V_ASN1_UNIVERSAL;
+        }
+        if (asn1_cb && !asn1_cb(ASN1_OP_I2D_PRE, pval, it, NULL))
+            return 0;
+        /* First work out sequence content length */
+        for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) {
+            const ASN1_TEMPLATE *seqtt;
+            ASN1_VALUE **pseqval;
+            int tmplen;
+            seqtt = asn1_do_adb(pval, tt, 1);
+            if (!seqtt)
+                return 0;
+            pseqval = asn1_get_field_ptr(pval, seqtt);
+            tmplen = asn1_template_ex_i2d(pseqval, NULL, seqtt, -1, aclass);
+            if (tmplen == -1 || (tmplen > INT_MAX - seqcontlen))
+                return -1;
+            seqcontlen += tmplen;
+        }
+
+        seqlen = ASN1_object_size(ndef, seqcontlen, tag);
+        if (!out || seqlen == -1)
+            return seqlen;
+        /* Output SEQUENCE header */
+        ASN1_put_object(out, ndef, seqcontlen, tag, aclass);
+        for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) {
+            const ASN1_TEMPLATE *seqtt;
+            ASN1_VALUE **pseqval;
+            seqtt = asn1_do_adb(pval, tt, 1);
+            if (!seqtt)
+                return 0;
+            pseqval = asn1_get_field_ptr(pval, seqtt);
+            /* FIXME: check for errors in enhanced version */
+            asn1_template_ex_i2d(pseqval, out, seqtt, -1, aclass);
+        }
+        if (ndef == 2)
+            ASN1_put_eoc(out);
+        if (asn1_cb && !asn1_cb(ASN1_OP_I2D_POST, pval, it, NULL))
+            return 0;
+        return seqlen;
+
+    default:
+        return 0;
+
+    }
+    return 0;
+}
+
+static int asn1_template_ex_i2d(ASN1_VALUE **pval, unsigned char **out,
+                                const ASN1_TEMPLATE *tt, int tag, int iclass)
+{
+    int i, ret, flags, ttag, tclass, ndef;
+    size_t j;
+    flags = tt->flags;
+    /*
+     * Work out tag and class to use: tagging may come either from the
+     * template or the arguments, not both because this would create
+     * ambiguity. Additionally the iclass argument may contain some
+     * additional flags which should be noted and passed down to other
+     * levels.
+     */
+    if (flags & ASN1_TFLG_TAG_MASK) {
+        /* Error if argument and template tagging */
+        if (tag != -1)
+            /* FIXME: error code here */
+            return -1;
+        /* Get tagging from template */
+        ttag = tt->tag;
+        tclass = flags & ASN1_TFLG_TAG_CLASS;
+    } else if (tag != -1) {
+        /* No template tagging, get from arguments */
+        ttag = tag;
+        tclass = iclass & ASN1_TFLG_TAG_CLASS;
+    } else {
+        ttag = -1;
+        tclass = 0;
+    }
+    /*
+     * Remove any class mask from iflag.
+     */
+    iclass &= ~ASN1_TFLG_TAG_CLASS;
+
+    /*
+     * At this point 'ttag' contains the outer tag to use, 'tclass' is the
+     * class and iclass is any flags passed to this function.
+     */
+
+    /* if template and arguments require ndef, use it */
+    if ((flags & ASN1_TFLG_NDEF) && (iclass & ASN1_TFLG_NDEF))
+        ndef = 2;
+    else
+        ndef = 1;
+
+    if (flags & ASN1_TFLG_SK_MASK) {
+        /* SET OF, SEQUENCE OF */
+        STACK_OF(ASN1_VALUE) *sk = (STACK_OF(ASN1_VALUE) *)*pval;
+        int isset, sktag, skaclass;
+        int skcontlen, sklen;
+        ASN1_VALUE *skitem;
+
+        if (!*pval)
+            return 0;
+
+        if (flags & ASN1_TFLG_SET_OF) {
+            isset = 1;
+            /* 2 means we reorder */
+            if (flags & ASN1_TFLG_SEQUENCE_OF)
+                isset = 2;
+        } else
+            isset = 0;
+
+        /*
+         * Work out inner tag value: if EXPLICIT or no tagging use underlying
+         * type.
+         */
+        if ((ttag != -1) && !(flags & ASN1_TFLG_EXPTAG)) {
+            sktag = ttag;
+            skaclass = tclass;
+        } else {
+            skaclass = V_ASN1_UNIVERSAL;
+            if (isset)
+                sktag = V_ASN1_SET;
+            else
+                sktag = V_ASN1_SEQUENCE;
+        }
+
+        /* Determine total length of items */
+        skcontlen = 0;
+        for (j = 0; j < sk_ASN1_VALUE_num(sk); j++) {
+            int tmplen;
+            skitem = sk_ASN1_VALUE_value(sk, j);
+            tmplen = ASN1_item_ex_i2d(&skitem, NULL, ASN1_ITEM_ptr(tt->item),
+                                      -1, iclass);
+            if (tmplen == -1 || (skcontlen > INT_MAX - tmplen))
+                return -1;
+            skcontlen += tmplen;
+        }
+        sklen = ASN1_object_size(ndef, skcontlen, sktag);
+        if (sklen == -1)
+            return -1;
+        /* If EXPLICIT need length of surrounding tag */
+        if (flags & ASN1_TFLG_EXPTAG)
+            ret = ASN1_object_size(ndef, sklen, ttag);
+        else
+            ret = sklen;
+
+        if (!out || ret == -1)
+            return ret;
+
+        /* Now encode this lot... */
+        /* EXPLICIT tag */
+        if (flags & ASN1_TFLG_EXPTAG)
+            ASN1_put_object(out, ndef, sklen, ttag, tclass);
+        /* SET or SEQUENCE and IMPLICIT tag */
+        ASN1_put_object(out, ndef, skcontlen, sktag, skaclass);
+        /* And the stuff itself */
+        asn1_set_seq_out(sk, out, skcontlen, ASN1_ITEM_ptr(tt->item),
+                         isset, iclass);
+        if (ndef == 2) {
+            ASN1_put_eoc(out);
+            if (flags & ASN1_TFLG_EXPTAG)
+                ASN1_put_eoc(out);
+        }
+
+        return ret;
+    }
+
+    if (flags & ASN1_TFLG_EXPTAG) {
+        /* EXPLICIT tagging */
+        /* Find length of tagged item */
+        i = ASN1_item_ex_i2d(pval, NULL, ASN1_ITEM_ptr(tt->item), -1, iclass);
+        if (!i)
+            return 0;
+        /* Find length of EXPLICIT tag */
+        ret = ASN1_object_size(ndef, i, ttag);
+        if (out && ret != -1) {
+            /* Output tag and item */
+            ASN1_put_object(out, ndef, i, ttag, tclass);
+            ASN1_item_ex_i2d(pval, out, ASN1_ITEM_ptr(tt->item), -1, iclass);
+            if (ndef == 2)
+                ASN1_put_eoc(out);
+        }
+        return ret;
+    }
+
+    /* Either normal or IMPLICIT tagging: combine class and flags */
+    return ASN1_item_ex_i2d(pval, out, ASN1_ITEM_ptr(tt->item),
+                            ttag, tclass | iclass);
+
+}
+
+/* Temporary structure used to hold DER encoding of items for SET OF */
+
+typedef struct {
+    unsigned char *data;
+    int length;
+    ASN1_VALUE *field;
+} DER_ENC;
+
+static int der_cmp(const void *a, const void *b)
+{
+    const DER_ENC *d1 = a, *d2 = b;
+    int cmplen, i;
+    cmplen = (d1->length < d2->length) ? d1->length : d2->length;
+    i = OPENSSL_memcmp(d1->data, d2->data, cmplen);
+    if (i)
+        return i;
+    return d1->length - d2->length;
+}
+
+/* Output the content octets of SET OF or SEQUENCE OF */
+
+static int asn1_set_seq_out(STACK_OF(ASN1_VALUE) *sk, unsigned char **out,
+                            int skcontlen, const ASN1_ITEM *item,
+                            int do_sort, int iclass)
+{
+    size_t i;
+    ASN1_VALUE *skitem;
+    unsigned char *tmpdat = NULL, *p = NULL;
+    DER_ENC *derlst = NULL, *tder;
+    if (do_sort) {
+        /* Don't need to sort less than 2 items */
+        if (sk_ASN1_VALUE_num(sk) < 2)
+            do_sort = 0;
+        else {
+            derlst = OPENSSL_malloc(sk_ASN1_VALUE_num(sk)
+                                    * sizeof(*derlst));
+            if (!derlst)
+                return 0;
+            tmpdat = OPENSSL_malloc(skcontlen);
+            if (!tmpdat) {
+                OPENSSL_free(derlst);
+                return 0;
+            }
+        }
+    }
+    /* If not sorting just output each item */
+    if (!do_sort) {
+        for (i = 0; i < sk_ASN1_VALUE_num(sk); i++) {
+            skitem = sk_ASN1_VALUE_value(sk, i);
+            ASN1_item_ex_i2d(&skitem, out, item, -1, iclass);
+        }
+        return 1;
+    }
+    p = tmpdat;
+
+    /* Doing sort: build up a list of each member's DER encoding */
+    for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk); i++, tder++) {
+        skitem = sk_ASN1_VALUE_value(sk, i);
+        tder->data = p;
+        tder->length = ASN1_item_ex_i2d(&skitem, &p, item, -1, iclass);
+        tder->field = skitem;
+    }
+
+    /* Now sort them */
+    qsort(derlst, sk_ASN1_VALUE_num(sk), sizeof(*derlst), der_cmp);
+    /* Output sorted DER encoding */
+    p = *out;
+    for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk); i++, tder++) {
+        OPENSSL_memcpy(p, tder->data, tder->length);
+        p += tder->length;
+    }
+    *out = p;
+    /* If do_sort is 2 then reorder the STACK */
+    if (do_sort == 2) {
+        for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk); i++, tder++)
+            (void)sk_ASN1_VALUE_set(sk, i, tder->field);
+    }
+    OPENSSL_free(derlst);
+    OPENSSL_free(tmpdat);
+    return 1;
+}
+
+static int asn1_i2d_ex_primitive(ASN1_VALUE **pval, unsigned char **out,
+                                 const ASN1_ITEM *it, int tag, int aclass)
+{
+    int len;
+    int utype;
+    int usetag;
+    int ndef = 0;
+
+    utype = it->utype;
+
+    /*
+     * Get length of content octets and maybe find out the underlying type.
+     */
+
+    len = asn1_ex_i2c(pval, NULL, &utype, it);
+
+    /*
+     * If SEQUENCE, SET or OTHER then header is included in pseudo content
+     * octets so don't include tag+length. We need to check here because the
+     * call to asn1_ex_i2c() could change utype.
+     */
+    if ((utype == V_ASN1_SEQUENCE) || (utype == V_ASN1_SET) ||
+        (utype == V_ASN1_OTHER))
+        usetag = 0;
+    else
+        usetag = 1;
+
+    /* -1 means omit type */
+
+    if (len == -1)
+        return 0;
+
+    /* -2 return is special meaning use ndef */
+    if (len == -2) {
+        ndef = 2;
+        len = 0;
+    }
+
+    /* If not implicitly tagged get tag from underlying type */
+    if (tag == -1)
+        tag = utype;
+
+    /* Output tag+length followed by content octets */
+    if (out) {
+        if (usetag)
+            ASN1_put_object(out, ndef, len, tag, aclass);
+        asn1_ex_i2c(pval, *out, &utype, it);
+        if (ndef)
+            ASN1_put_eoc(out);
+        else
+            *out += len;
+    }
+
+    if (usetag)
+        return ASN1_object_size(ndef, len, tag);
+    return len;
+}
+
+/* Produce content octets from a structure */
+
+int asn1_ex_i2c(ASN1_VALUE **pval, unsigned char *cout, int *putype,
+                const ASN1_ITEM *it)
+{
+    ASN1_BOOLEAN *tbool = NULL;
+    ASN1_STRING *strtmp;
+    ASN1_OBJECT *otmp;
+    int utype;
+    const unsigned char *cont;
+    unsigned char c;
+    int len;
+    const ASN1_PRIMITIVE_FUNCS *pf;
+    pf = it->funcs;
+    if (pf && pf->prim_i2c)
+        return pf->prim_i2c(pval, cout, putype, it);
+
+    /* Should type be omitted? */
+    if ((it->itype != ASN1_ITYPE_PRIMITIVE)
+        || (it->utype != V_ASN1_BOOLEAN)) {
+        if (!*pval)
+            return -1;
+    }
+
+    if (it->itype == ASN1_ITYPE_MSTRING) {
+        /* If MSTRING type set the underlying type */
+        strtmp = (ASN1_STRING *)*pval;
+        utype = strtmp->type;
+        *putype = utype;
+    } else if (it->utype == V_ASN1_ANY) {
+        /* If ANY set type and pointer to value */
+        ASN1_TYPE *typ;
+        typ = (ASN1_TYPE *)*pval;
+        utype = typ->type;
+        *putype = utype;
+        pval = &typ->value.asn1_value;
+    } else
+        utype = *putype;
+
+    switch (utype) {
+    case V_ASN1_OBJECT:
+        otmp = (ASN1_OBJECT *)*pval;
+        cont = otmp->data;
+        len = otmp->length;
+        if (cont == NULL || len == 0)
+            return -1;
+        break;
+
+    case V_ASN1_NULL:
+        cont = NULL;
+        len = 0;
+        break;
+
+    case V_ASN1_BOOLEAN:
+        tbool = (ASN1_BOOLEAN *)pval;
+        if (*tbool == -1)
+            return -1;
+        if (it->utype != V_ASN1_ANY) {
+            /*
+             * Default handling if value == size field then omit
+             */
+            if (*tbool && (it->size > 0))
+                return -1;
+            if (!*tbool && !it->size)
+                return -1;
+        }
+        c = (unsigned char)*tbool;
+        cont = &c;
+        len = 1;
+        break;
+
+    case V_ASN1_BIT_STRING:
+        return i2c_ASN1_BIT_STRING((ASN1_BIT_STRING *)*pval,
+                                   cout ? &cout : NULL);
+        break;
+
+    case V_ASN1_INTEGER:
+    case V_ASN1_ENUMERATED:
+        /*
+         * These are all have the same content format as ASN1_INTEGER
+         */
+        return i2c_ASN1_INTEGER((ASN1_INTEGER *)*pval, cout ? &cout : NULL);
+        break;
+
+    case V_ASN1_OCTET_STRING:
+    case V_ASN1_NUMERICSTRING:
+    case V_ASN1_PRINTABLESTRING:
+    case V_ASN1_T61STRING:
+    case V_ASN1_VIDEOTEXSTRING:
+    case V_ASN1_IA5STRING:
+    case V_ASN1_UTCTIME:
+    case V_ASN1_GENERALIZEDTIME:
+    case V_ASN1_GRAPHICSTRING:
+    case V_ASN1_VISIBLESTRING:
+    case V_ASN1_GENERALSTRING:
+    case V_ASN1_UNIVERSALSTRING:
+    case V_ASN1_BMPSTRING:
+    case V_ASN1_UTF8STRING:
+    case V_ASN1_SEQUENCE:
+    case V_ASN1_SET:
+    default:
+        /* All based on ASN1_STRING and handled the same */
+        strtmp = (ASN1_STRING *)*pval;
+        /* Special handling for NDEF */
+        if ((it->size == ASN1_TFLG_NDEF)
+            && (strtmp->flags & ASN1_STRING_FLAG_NDEF)) {
+            if (cout) {
+                strtmp->data = cout;
+                strtmp->length = 0;
+            }
+            /* Special return code */
+            return -2;
+        }
+        cont = strtmp->data;
+        len = strtmp->length;
+
+        break;
+
+    }
+    if (cout && len)
+        OPENSSL_memcpy(cout, cont, len);
+    return len;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_enc.c.grpc_back

@@ -0,0 +1,664 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/asn1t.h>
+#include <openssl/mem.h>
+
+#include "../internal.h"
+
+
+static int asn1_i2d_ex_primitive(ASN1_VALUE **pval, unsigned char **out,
+                                 const ASN1_ITEM *it, int tag, int aclass);
+static int asn1_set_seq_out(STACK_OF(ASN1_VALUE) *sk, unsigned char **out,
+                            int skcontlen, const ASN1_ITEM *item,
+                            int do_sort, int iclass);
+static int asn1_template_ex_i2d(ASN1_VALUE **pval, unsigned char **out,
+                                const ASN1_TEMPLATE *tt, int tag, int aclass);
+static int asn1_item_flags_i2d(ASN1_VALUE *val, unsigned char **out,
+                               const ASN1_ITEM *it, int flags);
+
+/*
+ * Top level i2d equivalents: the 'ndef' variant instructs the encoder to use
+ * indefinite length constructed encoding, where appropriate
+ */
+
+int ASN1_item_ndef_i2d(ASN1_VALUE *val, unsigned char **out,
+                       const ASN1_ITEM *it)
+{
+    return asn1_item_flags_i2d(val, out, it, ASN1_TFLG_NDEF);
+}
+
+int ASN1_item_i2d(ASN1_VALUE *val, unsigned char **out, const ASN1_ITEM *it)
+{
+    return asn1_item_flags_i2d(val, out, it, 0);
+}
+
+/*
+ * Encode an ASN1 item, this is use by the standard 'i2d' function. 'out'
+ * points to a buffer to output the data to. The new i2d has one additional
+ * feature. If the output buffer is NULL (i.e. *out == NULL) then a buffer is
+ * allocated and populated with the encoding.
+ */
+
+static int asn1_item_flags_i2d(ASN1_VALUE *val, unsigned char **out,
+                               const ASN1_ITEM *it, int flags)
+{
+    if (out && !*out) {
+        unsigned char *p, *buf;
+        int len;
+        len = ASN1_item_ex_i2d(&val, NULL, it, -1, flags);
+        if (len <= 0)
+            return len;
+        buf = OPENSSL_malloc(len);
+        if (!buf)
+            return -1;
+        p = buf;
+        ASN1_item_ex_i2d(&val, &p, it, -1, flags);
+        *out = buf;
+        return len;
+    }
+
+    return ASN1_item_ex_i2d(&val, out, it, -1, flags);
+}
+
+/*
+ * Encode an item, taking care of IMPLICIT tagging (if any). This function
+ * performs the normal item handling: it can be used in external types.
+ */
+
+int ASN1_item_ex_i2d(ASN1_VALUE **pval, unsigned char **out,
+                     const ASN1_ITEM *it, int tag, int aclass)
+{
+    const ASN1_TEMPLATE *tt = NULL;
+    unsigned char *p = NULL;
+    int i, seqcontlen, seqlen, ndef = 1;
+    const ASN1_COMPAT_FUNCS *cf;
+    const ASN1_EXTERN_FUNCS *ef;
+    const ASN1_AUX *aux = it->funcs;
+    ASN1_aux_cb *asn1_cb = 0;
+
+    if ((it->itype != ASN1_ITYPE_PRIMITIVE) && !*pval)
+        return 0;
+
+    if (aux && aux->asn1_cb)
+        asn1_cb = aux->asn1_cb;
+
+    switch (it->itype) {
+
+    case ASN1_ITYPE_PRIMITIVE:
+        if (it->templates)
+            return asn1_template_ex_i2d(pval, out, it->templates,
+                                        tag, aclass);
+        return asn1_i2d_ex_primitive(pval, out, it, tag, aclass);
+        break;
+
+    case ASN1_ITYPE_MSTRING:
+        return asn1_i2d_ex_primitive(pval, out, it, -1, aclass);
+
+    case ASN1_ITYPE_CHOICE:
+        if (asn1_cb && !asn1_cb(ASN1_OP_I2D_PRE, pval, it, NULL))
+            return 0;
+        i = asn1_get_choice_selector(pval, it);
+        if ((i >= 0) && (i < it->tcount)) {
+            ASN1_VALUE **pchval;
+            const ASN1_TEMPLATE *chtt;
+            chtt = it->templates + i;
+            pchval = asn1_get_field_ptr(pval, chtt);
+            return asn1_template_ex_i2d(pchval, out, chtt, -1, aclass);
+        }
+        /* Fixme: error condition if selector out of range */
+        if (asn1_cb && !asn1_cb(ASN1_OP_I2D_POST, pval, it, NULL))
+            return 0;
+        break;
+
+    case ASN1_ITYPE_EXTERN:
+        /* If new style i2d it does all the work */
+        ef = it->funcs;
+        return ef->asn1_ex_i2d(pval, out, it, tag, aclass);
+
+    case ASN1_ITYPE_COMPAT:
+        /* old style hackery... */
+        cf = it->funcs;
+        if (out)
+            p = *out;
+        i = cf->asn1_i2d(*pval, out);
+        /*
+         * Fixup for IMPLICIT tag: note this messes up for tags > 30, but so
+         * did the old code. Tags > 30 are very rare anyway.
+         */
+        if (out && (tag != -1))
+            *p = aclass | tag | (*p & V_ASN1_CONSTRUCTED);
+        return i;
+
+    case ASN1_ITYPE_NDEF_SEQUENCE:
+        /* Use indefinite length constructed if requested */
+        if (aclass & ASN1_TFLG_NDEF)
+            ndef = 2;
+        OPENSSL_FALLTHROUGH;
+
+    case ASN1_ITYPE_SEQUENCE:
+        i = asn1_enc_restore(&seqcontlen, out, pval, it);
+        /* An error occurred */
+        if (i < 0)
+            return 0;
+        /* We have a valid cached encoding... */
+        if (i > 0)
+            return seqcontlen;
+        /* Otherwise carry on */
+        seqcontlen = 0;
+        /* If no IMPLICIT tagging set to SEQUENCE, UNIVERSAL */
+        if (tag == -1) {
+            tag = V_ASN1_SEQUENCE;
+            /* Retain any other flags in aclass */
+            aclass = (aclass & ~ASN1_TFLG_TAG_CLASS)
+                | V_ASN1_UNIVERSAL;
+        }
+        if (asn1_cb && !asn1_cb(ASN1_OP_I2D_PRE, pval, it, NULL))
+            return 0;
+        /* First work out sequence content length */
+        for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) {
+            const ASN1_TEMPLATE *seqtt;
+            ASN1_VALUE **pseqval;
+            int tmplen;
+            seqtt = asn1_do_adb(pval, tt, 1);
+            if (!seqtt)
+                return 0;
+            pseqval = asn1_get_field_ptr(pval, seqtt);
+            tmplen = asn1_template_ex_i2d(pseqval, NULL, seqtt, -1, aclass);
+            if (tmplen == -1 || (tmplen > INT_MAX - seqcontlen))
+                return -1;
+            seqcontlen += tmplen;
+        }
+
+        seqlen = ASN1_object_size(ndef, seqcontlen, tag);
+        if (!out || seqlen == -1)
+            return seqlen;
+        /* Output SEQUENCE header */
+        ASN1_put_object(out, ndef, seqcontlen, tag, aclass);
+        for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) {
+            const ASN1_TEMPLATE *seqtt;
+            ASN1_VALUE **pseqval;
+            seqtt = asn1_do_adb(pval, tt, 1);
+            if (!seqtt)
+                return 0;
+            pseqval = asn1_get_field_ptr(pval, seqtt);
+            /* FIXME: check for errors in enhanced version */
+            asn1_template_ex_i2d(pseqval, out, seqtt, -1, aclass);
+        }
+        if (ndef == 2)
+            ASN1_put_eoc(out);
+        if (asn1_cb && !asn1_cb(ASN1_OP_I2D_POST, pval, it, NULL))
+            return 0;
+        return seqlen;
+
+    default:
+        return 0;
+
+    }
+    return 0;
+}
+
+static int asn1_template_ex_i2d(ASN1_VALUE **pval, unsigned char **out,
+                                const ASN1_TEMPLATE *tt, int tag, int iclass)
+{
+    int i, ret, flags, ttag, tclass, ndef;
+    size_t j;
+    flags = tt->flags;
+    /*
+     * Work out tag and class to use: tagging may come either from the
+     * template or the arguments, not both because this would create
+     * ambiguity. Additionally the iclass argument may contain some
+     * additional flags which should be noted and passed down to other
+     * levels.
+     */
+    if (flags & ASN1_TFLG_TAG_MASK) {
+        /* Error if argument and template tagging */
+        if (tag != -1)
+            /* FIXME: error code here */
+            return -1;
+        /* Get tagging from template */
+        ttag = tt->tag;
+        tclass = flags & ASN1_TFLG_TAG_CLASS;
+    } else if (tag != -1) {
+        /* No template tagging, get from arguments */
+        ttag = tag;
+        tclass = iclass & ASN1_TFLG_TAG_CLASS;
+    } else {
+        ttag = -1;
+        tclass = 0;
+    }
+    /*
+     * Remove any class mask from iflag.
+     */
+    iclass &= ~ASN1_TFLG_TAG_CLASS;
+
+    /*
+     * At this point 'ttag' contains the outer tag to use, 'tclass' is the
+     * class and iclass is any flags passed to this function.
+     */
+
+    /* if template and arguments require ndef, use it */
+    if ((flags & ASN1_TFLG_NDEF) && (iclass & ASN1_TFLG_NDEF))
+        ndef = 2;
+    else
+        ndef = 1;
+
+    if (flags & ASN1_TFLG_SK_MASK) {
+        /* SET OF, SEQUENCE OF */
+        STACK_OF(ASN1_VALUE) *sk = (STACK_OF(ASN1_VALUE) *)*pval;
+        int isset, sktag, skaclass;
+        int skcontlen, sklen;
+        ASN1_VALUE *skitem;
+
+        if (!*pval)
+            return 0;
+
+        if (flags & ASN1_TFLG_SET_OF) {
+            isset = 1;
+            /* 2 means we reorder */
+            if (flags & ASN1_TFLG_SEQUENCE_OF)
+                isset = 2;
+        } else
+            isset = 0;
+
+        /*
+         * Work out inner tag value: if EXPLICIT or no tagging use underlying
+         * type.
+         */
+        if ((ttag != -1) && !(flags & ASN1_TFLG_EXPTAG)) {
+            sktag = ttag;
+            skaclass = tclass;
+        } else {
+            skaclass = V_ASN1_UNIVERSAL;
+            if (isset)
+                sktag = V_ASN1_SET;
+            else
+                sktag = V_ASN1_SEQUENCE;
+        }
+
+        /* Determine total length of items */
+        skcontlen = 0;
+        for (j = 0; j < sk_ASN1_VALUE_num(sk); j++) {
+            int tmplen;
+            skitem = sk_ASN1_VALUE_value(sk, j);
+            tmplen = ASN1_item_ex_i2d(&skitem, NULL, ASN1_ITEM_ptr(tt->item),
+                                      -1, iclass);
+            if (tmplen == -1 || (skcontlen > INT_MAX - tmplen))
+                return -1;
+            skcontlen += tmplen;
+        }
+        sklen = ASN1_object_size(ndef, skcontlen, sktag);
+        if (sklen == -1)
+            return -1;
+        /* If EXPLICIT need length of surrounding tag */
+        if (flags & ASN1_TFLG_EXPTAG)
+            ret = ASN1_object_size(ndef, sklen, ttag);
+        else
+            ret = sklen;
+
+        if (!out || ret == -1)
+            return ret;
+
+        /* Now encode this lot... */
+        /* EXPLICIT tag */
+        if (flags & ASN1_TFLG_EXPTAG)
+            ASN1_put_object(out, ndef, sklen, ttag, tclass);
+        /* SET or SEQUENCE and IMPLICIT tag */
+        ASN1_put_object(out, ndef, skcontlen, sktag, skaclass);
+        /* And the stuff itself */
+        asn1_set_seq_out(sk, out, skcontlen, ASN1_ITEM_ptr(tt->item),
+                         isset, iclass);
+        if (ndef == 2) {
+            ASN1_put_eoc(out);
+            if (flags & ASN1_TFLG_EXPTAG)
+                ASN1_put_eoc(out);
+        }
+
+        return ret;
+    }
+
+    if (flags & ASN1_TFLG_EXPTAG) {
+        /* EXPLICIT tagging */
+        /* Find length of tagged item */
+        i = ASN1_item_ex_i2d(pval, NULL, ASN1_ITEM_ptr(tt->item), -1, iclass);
+        if (!i)
+            return 0;
+        /* Find length of EXPLICIT tag */
+        ret = ASN1_object_size(ndef, i, ttag);
+        if (out && ret != -1) {
+            /* Output tag and item */
+            ASN1_put_object(out, ndef, i, ttag, tclass);
+            ASN1_item_ex_i2d(pval, out, ASN1_ITEM_ptr(tt->item), -1, iclass);
+            if (ndef == 2)
+                ASN1_put_eoc(out);
+        }
+        return ret;
+    }
+
+    /* Either normal or IMPLICIT tagging: combine class and flags */
+    return ASN1_item_ex_i2d(pval, out, ASN1_ITEM_ptr(tt->item),
+                            ttag, tclass | iclass);
+
+}
+
+/* Temporary structure used to hold DER encoding of items for SET OF */
+
+typedef struct {
+    unsigned char *data;
+    int length;
+    ASN1_VALUE *field;
+} DER_ENC;
+
+static int der_cmp(const void *a, const void *b)
+{
+    const DER_ENC *d1 = a, *d2 = b;
+    int cmplen, i;
+    cmplen = (d1->length < d2->length) ? d1->length : d2->length;
+    i = OPENSSL_memcmp(d1->data, d2->data, cmplen);
+    if (i)
+        return i;
+    return d1->length - d2->length;
+}
+
+/* Output the content octets of SET OF or SEQUENCE OF */
+
+static int asn1_set_seq_out(STACK_OF(ASN1_VALUE) *sk, unsigned char **out,
+                            int skcontlen, const ASN1_ITEM *item,
+                            int do_sort, int iclass)
+{
+    size_t i;
+    ASN1_VALUE *skitem;
+    unsigned char *tmpdat = NULL, *p = NULL;
+    DER_ENC *derlst = NULL, *tder;
+    if (do_sort) {
+        /* Don't need to sort less than 2 items */
+        if (sk_ASN1_VALUE_num(sk) < 2)
+            do_sort = 0;
+        else {
+            derlst = OPENSSL_malloc(sk_ASN1_VALUE_num(sk)
+                                    * sizeof(*derlst));
+            if (!derlst)
+                return 0;
+            tmpdat = OPENSSL_malloc(skcontlen);
+            if (!tmpdat) {
+                OPENSSL_free(derlst);
+                return 0;
+            }
+        }
+    }
+    /* If not sorting just output each item */
+    if (!do_sort) {
+        for (i = 0; i < sk_ASN1_VALUE_num(sk); i++) {
+            skitem = sk_ASN1_VALUE_value(sk, i);
+            ASN1_item_ex_i2d(&skitem, out, item, -1, iclass);
+        }
+        return 1;
+    }
+    p = tmpdat;
+
+    /* Doing sort: build up a list of each member's DER encoding */
+    for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk); i++, tder++) {
+        skitem = sk_ASN1_VALUE_value(sk, i);
+        tder->data = p;
+        tder->length = ASN1_item_ex_i2d(&skitem, &p, item, -1, iclass);
+        tder->field = skitem;
+    }
+
+    /* Now sort them */
+    qsort(derlst, sk_ASN1_VALUE_num(sk), sizeof(*derlst), der_cmp);
+    /* Output sorted DER encoding */
+    p = *out;
+    for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk); i++, tder++) {
+        OPENSSL_memcpy(p, tder->data, tder->length);
+        p += tder->length;
+    }
+    *out = p;
+    /* If do_sort is 2 then reorder the STACK */
+    if (do_sort == 2) {
+        for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk); i++, tder++)
+            (void)sk_ASN1_VALUE_set(sk, i, tder->field);
+    }
+    OPENSSL_free(derlst);
+    OPENSSL_free(tmpdat);
+    return 1;
+}
+
+static int asn1_i2d_ex_primitive(ASN1_VALUE **pval, unsigned char **out,
+                                 const ASN1_ITEM *it, int tag, int aclass)
+{
+    int len;
+    int utype;
+    int usetag;
+    int ndef = 0;
+
+    utype = it->utype;
+
+    /*
+     * Get length of content octets and maybe find out the underlying type.
+     */
+
+    len = asn1_ex_i2c(pval, NULL, &utype, it);
+
+    /*
+     * If SEQUENCE, SET or OTHER then header is included in pseudo content
+     * octets so don't include tag+length. We need to check here because the
+     * call to asn1_ex_i2c() could change utype.
+     */
+    if ((utype == V_ASN1_SEQUENCE) || (utype == V_ASN1_SET) ||
+        (utype == V_ASN1_OTHER))
+        usetag = 0;
+    else
+        usetag = 1;
+
+    /* -1 means omit type */
+
+    if (len == -1)
+        return 0;
+
+    /* -2 return is special meaning use ndef */
+    if (len == -2) {
+        ndef = 2;
+        len = 0;
+    }
+
+    /* If not implicitly tagged get tag from underlying type */
+    if (tag == -1)
+        tag = utype;
+
+    /* Output tag+length followed by content octets */
+    if (out) {
+        if (usetag)
+            ASN1_put_object(out, ndef, len, tag, aclass);
+        asn1_ex_i2c(pval, *out, &utype, it);
+        if (ndef)
+            ASN1_put_eoc(out);
+        else
+            *out += len;
+    }
+
+    if (usetag)
+        return ASN1_object_size(ndef, len, tag);
+    return len;
+}
+
+/* Produce content octets from a structure */
+
+int asn1_ex_i2c(ASN1_VALUE **pval, unsigned char *cout, int *putype,
+                const ASN1_ITEM *it)
+{
+    ASN1_BOOLEAN *tbool = NULL;
+    ASN1_STRING *strtmp;
+    ASN1_OBJECT *otmp;
+    int utype;
+    const unsigned char *cont;
+    unsigned char c;
+    int len;
+    const ASN1_PRIMITIVE_FUNCS *pf;
+    pf = it->funcs;
+    if (pf && pf->prim_i2c)
+        return pf->prim_i2c(pval, cout, putype, it);
+
+    /* Should type be omitted? */
+    if ((it->itype != ASN1_ITYPE_PRIMITIVE)
+        || (it->utype != V_ASN1_BOOLEAN)) {
+        if (!*pval)
+            return -1;
+    }
+
+    if (it->itype == ASN1_ITYPE_MSTRING) {
+        /* If MSTRING type set the underlying type */
+        strtmp = (ASN1_STRING *)*pval;
+        utype = strtmp->type;
+        *putype = utype;
+    } else if (it->utype == V_ASN1_ANY) {
+        /* If ANY set type and pointer to value */
+        ASN1_TYPE *typ;
+        typ = (ASN1_TYPE *)*pval;
+        utype = typ->type;
+        *putype = utype;
+        pval = &typ->value.asn1_value;
+    } else
+        utype = *putype;
+
+    switch (utype) {
+    case V_ASN1_OBJECT:
+        otmp = (ASN1_OBJECT *)*pval;
+        cont = otmp->data;
+        len = otmp->length;
+        if (cont == NULL || len == 0)
+            return -1;
+        break;
+
+    case V_ASN1_NULL:
+        cont = NULL;
+        len = 0;
+        break;
+
+    case V_ASN1_BOOLEAN:
+        tbool = (ASN1_BOOLEAN *)pval;
+        if (*tbool == -1)
+            return -1;
+        if (it->utype != V_ASN1_ANY) {
+            /*
+             * Default handling if value == size field then omit
+             */
+            if (*tbool && (it->size > 0))
+                return -1;
+            if (!*tbool && !it->size)
+                return -1;
+        }
+        c = (unsigned char)*tbool;
+        cont = &c;
+        len = 1;
+        break;
+
+    case V_ASN1_BIT_STRING:
+        return i2c_ASN1_BIT_STRING((ASN1_BIT_STRING *)*pval,
+                                   cout ? &cout : NULL);
+        break;
+
+    case V_ASN1_INTEGER:
+    case V_ASN1_ENUMERATED:
+        /*
+         * These are all have the same content format as ASN1_INTEGER
+         */
+        return i2c_ASN1_INTEGER((ASN1_INTEGER *)*pval, cout ? &cout : NULL);
+        break;
+
+    case V_ASN1_OCTET_STRING:
+    case V_ASN1_NUMERICSTRING:
+    case V_ASN1_PRINTABLESTRING:
+    case V_ASN1_T61STRING:
+    case V_ASN1_VIDEOTEXSTRING:
+    case V_ASN1_IA5STRING:
+    case V_ASN1_UTCTIME:
+    case V_ASN1_GENERALIZEDTIME:
+    case V_ASN1_GRAPHICSTRING:
+    case V_ASN1_VISIBLESTRING:
+    case V_ASN1_GENERALSTRING:
+    case V_ASN1_UNIVERSALSTRING:
+    case V_ASN1_BMPSTRING:
+    case V_ASN1_UTF8STRING:
+    case V_ASN1_SEQUENCE:
+    case V_ASN1_SET:
+    default:
+        /* All based on ASN1_STRING and handled the same */
+        strtmp = (ASN1_STRING *)*pval;
+        /* Special handling for NDEF */
+        if ((it->size == ASN1_TFLG_NDEF)
+            && (strtmp->flags & ASN1_STRING_FLAG_NDEF)) {
+            if (cout) {
+                strtmp->data = cout;
+                strtmp->length = 0;
+            }
+            /* Special return code */
+            return -2;
+        }
+        cont = strtmp->data;
+        len = strtmp->length;
+
+        break;
+
+    }
+    if (cout && len)
+        OPENSSL_memcpy(cout, cont, len);
+    return len;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_fre.c

@@ -0,0 +1,244 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/asn1t.h>
+#include <openssl_grpc/mem.h>
+
+#include "asn1_locl.h"
+
+/* Free up an ASN1 structure */
+
+void ASN1_item_free(ASN1_VALUE *val, const ASN1_ITEM *it)
+{
+    asn1_item_combine_free(&val, it, 0);
+}
+
+void ASN1_item_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    asn1_item_combine_free(pval, it, 0);
+}
+
+void asn1_item_combine_free(ASN1_VALUE **pval, const ASN1_ITEM *it, int combine)
+{
+    const ASN1_TEMPLATE *tt = NULL, *seqtt;
+    const ASN1_EXTERN_FUNCS *ef;
+    const ASN1_COMPAT_FUNCS *cf;
+    const ASN1_AUX *aux = it->funcs;
+    ASN1_aux_cb *asn1_cb;
+    int i;
+    if (!pval)
+        return;
+    if ((it->itype != ASN1_ITYPE_PRIMITIVE) && !*pval)
+        return;
+    if (aux && aux->asn1_cb)
+        asn1_cb = aux->asn1_cb;
+    else
+        asn1_cb = 0;
+
+    switch (it->itype) {
+
+    case ASN1_ITYPE_PRIMITIVE:
+        if (it->templates)
+            ASN1_template_free(pval, it->templates);
+        else
+            ASN1_primitive_free(pval, it);
+        break;
+
+    case ASN1_ITYPE_MSTRING:
+        ASN1_primitive_free(pval, it);
+        break;
+
+    case ASN1_ITYPE_CHOICE:
+        if (asn1_cb) {
+            i = asn1_cb(ASN1_OP_FREE_PRE, pval, it, NULL);
+            if (i == 2)
+                return;
+        }
+        i = asn1_get_choice_selector(pval, it);
+        if ((i >= 0) && (i < it->tcount)) {
+            ASN1_VALUE **pchval;
+            tt = it->templates + i;
+            pchval = asn1_get_field_ptr(pval, tt);
+            ASN1_template_free(pchval, tt);
+        }
+        if (asn1_cb)
+            asn1_cb(ASN1_OP_FREE_POST, pval, it, NULL);
+        if (!combine) {
+            OPENSSL_free(*pval);
+            *pval = NULL;
+        }
+        break;
+
+    case ASN1_ITYPE_COMPAT:
+        cf = it->funcs;
+        if (cf && cf->asn1_free)
+            cf->asn1_free(*pval);
+        break;
+
+    case ASN1_ITYPE_EXTERN:
+        ef = it->funcs;
+        if (ef && ef->asn1_ex_free)
+            ef->asn1_ex_free(pval, it);
+        break;
+
+    case ASN1_ITYPE_NDEF_SEQUENCE:
+    case ASN1_ITYPE_SEQUENCE:
+        if (!asn1_refcount_dec_and_test_zero(pval, it))
+            return;
+        if (asn1_cb) {
+            i = asn1_cb(ASN1_OP_FREE_PRE, pval, it, NULL);
+            if (i == 2)
+                return;
+        }
+        asn1_enc_free(pval, it);
+        /*
+         * If we free up as normal we will invalidate any ANY DEFINED BY
+         * field and we wont be able to determine the type of the field it
+         * defines. So free up in reverse order.
+         */
+        tt = it->templates + it->tcount - 1;
+        for (i = 0; i < it->tcount; tt--, i++) {
+            ASN1_VALUE **pseqval;
+            seqtt = asn1_do_adb(pval, tt, 0);
+            if (!seqtt)
+                continue;
+            pseqval = asn1_get_field_ptr(pval, seqtt);
+            ASN1_template_free(pseqval, seqtt);
+        }
+        if (asn1_cb)
+            asn1_cb(ASN1_OP_FREE_POST, pval, it, NULL);
+        if (!combine) {
+            OPENSSL_free(*pval);
+            *pval = NULL;
+        }
+        break;
+    }
+}
+
+void ASN1_template_free(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
+{
+    size_t i;
+    if (tt->flags & ASN1_TFLG_SK_MASK) {
+        STACK_OF(ASN1_VALUE) *sk = (STACK_OF(ASN1_VALUE) *)*pval;
+        for (i = 0; i < sk_ASN1_VALUE_num(sk); i++) {
+            ASN1_VALUE *vtmp;
+            vtmp = sk_ASN1_VALUE_value(sk, i);
+            asn1_item_combine_free(&vtmp, ASN1_ITEM_ptr(tt->item), 0);
+        }
+        sk_ASN1_VALUE_free(sk);
+        *pval = NULL;
+    } else
+        asn1_item_combine_free(pval, ASN1_ITEM_ptr(tt->item),
+                               tt->flags & ASN1_TFLG_COMBINE);
+}
+
+void ASN1_primitive_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    int utype;
+    if (it) {
+        const ASN1_PRIMITIVE_FUNCS *pf;
+        pf = it->funcs;
+        if (pf && pf->prim_free) {
+            pf->prim_free(pval, it);
+            return;
+        }
+    }
+    /* Special case: if 'it' is NULL free contents of ASN1_TYPE */
+    if (!it) {
+        ASN1_TYPE *typ = (ASN1_TYPE *)*pval;
+        utype = typ->type;
+        pval = &typ->value.asn1_value;
+        if (!*pval)
+            return;
+    } else if (it->itype == ASN1_ITYPE_MSTRING) {
+        utype = -1;
+        if (!*pval)
+            return;
+    } else {
+        utype = it->utype;
+        if ((utype != V_ASN1_BOOLEAN) && !*pval)
+            return;
+    }
+
+    switch (utype) {
+    case V_ASN1_OBJECT:
+        ASN1_OBJECT_free((ASN1_OBJECT *)*pval);
+        break;
+
+    case V_ASN1_BOOLEAN:
+        if (it)
+            *(ASN1_BOOLEAN *)pval = it->size;
+        else
+            *(ASN1_BOOLEAN *)pval = -1;
+        return;
+
+    case V_ASN1_NULL:
+        break;
+
+    case V_ASN1_ANY:
+        ASN1_primitive_free(pval, NULL);
+        OPENSSL_free(*pval);
+        break;
+
+    default:
+        ASN1_STRING_free((ASN1_STRING *)*pval);
+        *pval = NULL;
+        break;
+    }
+    *pval = NULL;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_fre.c.grpc_back

@@ -0,0 +1,244 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/asn1t.h>
+#include <openssl/mem.h>
+
+#include "asn1_locl.h"
+
+/* Free up an ASN1 structure */
+
+void ASN1_item_free(ASN1_VALUE *val, const ASN1_ITEM *it)
+{
+    asn1_item_combine_free(&val, it, 0);
+}
+
+void ASN1_item_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    asn1_item_combine_free(pval, it, 0);
+}
+
+void asn1_item_combine_free(ASN1_VALUE **pval, const ASN1_ITEM *it, int combine)
+{
+    const ASN1_TEMPLATE *tt = NULL, *seqtt;
+    const ASN1_EXTERN_FUNCS *ef;
+    const ASN1_COMPAT_FUNCS *cf;
+    const ASN1_AUX *aux = it->funcs;
+    ASN1_aux_cb *asn1_cb;
+    int i;
+    if (!pval)
+        return;
+    if ((it->itype != ASN1_ITYPE_PRIMITIVE) && !*pval)
+        return;
+    if (aux && aux->asn1_cb)
+        asn1_cb = aux->asn1_cb;
+    else
+        asn1_cb = 0;
+
+    switch (it->itype) {
+
+    case ASN1_ITYPE_PRIMITIVE:
+        if (it->templates)
+            ASN1_template_free(pval, it->templates);
+        else
+            ASN1_primitive_free(pval, it);
+        break;
+
+    case ASN1_ITYPE_MSTRING:
+        ASN1_primitive_free(pval, it);
+        break;
+
+    case ASN1_ITYPE_CHOICE:
+        if (asn1_cb) {
+            i = asn1_cb(ASN1_OP_FREE_PRE, pval, it, NULL);
+            if (i == 2)
+                return;
+        }
+        i = asn1_get_choice_selector(pval, it);
+        if ((i >= 0) && (i < it->tcount)) {
+            ASN1_VALUE **pchval;
+            tt = it->templates + i;
+            pchval = asn1_get_field_ptr(pval, tt);
+            ASN1_template_free(pchval, tt);
+        }
+        if (asn1_cb)
+            asn1_cb(ASN1_OP_FREE_POST, pval, it, NULL);
+        if (!combine) {
+            OPENSSL_free(*pval);
+            *pval = NULL;
+        }
+        break;
+
+    case ASN1_ITYPE_COMPAT:
+        cf = it->funcs;
+        if (cf && cf->asn1_free)
+            cf->asn1_free(*pval);
+        break;
+
+    case ASN1_ITYPE_EXTERN:
+        ef = it->funcs;
+        if (ef && ef->asn1_ex_free)
+            ef->asn1_ex_free(pval, it);
+        break;
+
+    case ASN1_ITYPE_NDEF_SEQUENCE:
+    case ASN1_ITYPE_SEQUENCE:
+        if (!asn1_refcount_dec_and_test_zero(pval, it))
+            return;
+        if (asn1_cb) {
+            i = asn1_cb(ASN1_OP_FREE_PRE, pval, it, NULL);
+            if (i == 2)
+                return;
+        }
+        asn1_enc_free(pval, it);
+        /*
+         * If we free up as normal we will invalidate any ANY DEFINED BY
+         * field and we wont be able to determine the type of the field it
+         * defines. So free up in reverse order.
+         */
+        tt = it->templates + it->tcount - 1;
+        for (i = 0; i < it->tcount; tt--, i++) {
+            ASN1_VALUE **pseqval;
+            seqtt = asn1_do_adb(pval, tt, 0);
+            if (!seqtt)
+                continue;
+            pseqval = asn1_get_field_ptr(pval, seqtt);
+            ASN1_template_free(pseqval, seqtt);
+        }
+        if (asn1_cb)
+            asn1_cb(ASN1_OP_FREE_POST, pval, it, NULL);
+        if (!combine) {
+            OPENSSL_free(*pval);
+            *pval = NULL;
+        }
+        break;
+    }
+}
+
+void ASN1_template_free(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
+{
+    size_t i;
+    if (tt->flags & ASN1_TFLG_SK_MASK) {
+        STACK_OF(ASN1_VALUE) *sk = (STACK_OF(ASN1_VALUE) *)*pval;
+        for (i = 0; i < sk_ASN1_VALUE_num(sk); i++) {
+            ASN1_VALUE *vtmp;
+            vtmp = sk_ASN1_VALUE_value(sk, i);
+            asn1_item_combine_free(&vtmp, ASN1_ITEM_ptr(tt->item), 0);
+        }
+        sk_ASN1_VALUE_free(sk);
+        *pval = NULL;
+    } else
+        asn1_item_combine_free(pval, ASN1_ITEM_ptr(tt->item),
+                               tt->flags & ASN1_TFLG_COMBINE);
+}
+
+void ASN1_primitive_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    int utype;
+    if (it) {
+        const ASN1_PRIMITIVE_FUNCS *pf;
+        pf = it->funcs;
+        if (pf && pf->prim_free) {
+            pf->prim_free(pval, it);
+            return;
+        }
+    }
+    /* Special case: if 'it' is NULL free contents of ASN1_TYPE */
+    if (!it) {
+        ASN1_TYPE *typ = (ASN1_TYPE *)*pval;
+        utype = typ->type;
+        pval = &typ->value.asn1_value;
+        if (!*pval)
+            return;
+    } else if (it->itype == ASN1_ITYPE_MSTRING) {
+        utype = -1;
+        if (!*pval)
+            return;
+    } else {
+        utype = it->utype;
+        if ((utype != V_ASN1_BOOLEAN) && !*pval)
+            return;
+    }
+
+    switch (utype) {
+    case V_ASN1_OBJECT:
+        ASN1_OBJECT_free((ASN1_OBJECT *)*pval);
+        break;
+
+    case V_ASN1_BOOLEAN:
+        if (it)
+            *(ASN1_BOOLEAN *)pval = it->size;
+        else
+            *(ASN1_BOOLEAN *)pval = -1;
+        return;
+
+    case V_ASN1_NULL:
+        break;
+
+    case V_ASN1_ANY:
+        ASN1_primitive_free(pval, NULL);
+        OPENSSL_free(*pval);
+        break;
+
+    default:
+        ASN1_STRING_free((ASN1_STRING *)*pval);
+        *pval = NULL;
+        break;
+    }
+    *pval = NULL;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_new.c

@@ -0,0 +1,387 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <string.h>
+
+#include <openssl_grpc/asn1t.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+#include <openssl_grpc/obj.h>
+
+#include "asn1_locl.h"
+#include "../internal.h"
+
+
+static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it,
+                                    int combine);
+static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it);
+static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
+static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it);
+
+ASN1_VALUE *ASN1_item_new(const ASN1_ITEM *it)
+{
+    ASN1_VALUE *ret = NULL;
+    if (ASN1_item_ex_new(&ret, it) > 0)
+        return ret;
+    return NULL;
+}
+
+/* Allocate an ASN1 structure */
+
+int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    return asn1_item_ex_combine_new(pval, it, 0);
+}
+
+static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it,
+                                    int combine)
+{
+    const ASN1_TEMPLATE *tt = NULL;
+    const ASN1_COMPAT_FUNCS *cf;
+    const ASN1_EXTERN_FUNCS *ef;
+    const ASN1_AUX *aux = it->funcs;
+    ASN1_aux_cb *asn1_cb;
+    ASN1_VALUE **pseqval;
+    int i;
+    if (aux && aux->asn1_cb)
+        asn1_cb = aux->asn1_cb;
+    else
+        asn1_cb = 0;
+
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_push_info(it->sname);
+#endif
+
+    switch (it->itype) {
+
+    case ASN1_ITYPE_EXTERN:
+        ef = it->funcs;
+        if (ef && ef->asn1_ex_new) {
+            if (!ef->asn1_ex_new(pval, it))
+                goto memerr;
+        }
+        break;
+
+    case ASN1_ITYPE_COMPAT:
+        cf = it->funcs;
+        if (cf && cf->asn1_new) {
+            *pval = cf->asn1_new();
+            if (!*pval)
+                goto memerr;
+        }
+        break;
+
+    case ASN1_ITYPE_PRIMITIVE:
+        if (it->templates) {
+            if (!ASN1_template_new(pval, it->templates))
+                goto memerr;
+        } else if (!ASN1_primitive_new(pval, it))
+            goto memerr;
+        break;
+
+    case ASN1_ITYPE_MSTRING:
+        if (!ASN1_primitive_new(pval, it))
+            goto memerr;
+        break;
+
+    case ASN1_ITYPE_CHOICE:
+        if (asn1_cb) {
+            i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL);
+            if (!i)
+                goto auxerr;
+            if (i == 2) {
+#ifdef CRYPTO_MDEBUG
+                if (it->sname)
+                    CRYPTO_pop_info();
+#endif
+                return 1;
+            }
+        }
+        if (!combine) {
+            *pval = OPENSSL_malloc(it->size);
+            if (!*pval)
+                goto memerr;
+            OPENSSL_memset(*pval, 0, it->size);
+        }
+        asn1_set_choice_selector(pval, -1, it);
+        if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL))
+            goto auxerr2;
+        break;
+
+    case ASN1_ITYPE_NDEF_SEQUENCE:
+    case ASN1_ITYPE_SEQUENCE:
+        if (asn1_cb) {
+            i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL);
+            if (!i)
+                goto auxerr;
+            if (i == 2) {
+#ifdef CRYPTO_MDEBUG
+                if (it->sname)
+                    CRYPTO_pop_info();
+#endif
+                return 1;
+            }
+        }
+        if (!combine) {
+            *pval = OPENSSL_malloc(it->size);
+            if (!*pval)
+                goto memerr;
+            OPENSSL_memset(*pval, 0, it->size);
+            asn1_refcount_set_one(pval, it);
+            asn1_enc_init(pval, it);
+        }
+        for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) {
+            pseqval = asn1_get_field_ptr(pval, tt);
+            if (!ASN1_template_new(pseqval, tt))
+                goto memerr2;
+        }
+        if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL))
+            goto auxerr2;
+        break;
+    }
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_pop_info();
+#endif
+    return 1;
+
+ memerr2:
+    asn1_item_combine_free(pval, it, combine);
+ memerr:
+    OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_pop_info();
+#endif
+    return 0;
+
+ auxerr2:
+    asn1_item_combine_free(pval, it, combine);
+ auxerr:
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_AUX_ERROR);
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_pop_info();
+#endif
+    return 0;
+
+}
+
+static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    const ASN1_EXTERN_FUNCS *ef;
+
+    switch (it->itype) {
+
+    case ASN1_ITYPE_EXTERN:
+        ef = it->funcs;
+        if (ef && ef->asn1_ex_clear)
+            ef->asn1_ex_clear(pval, it);
+        else
+            *pval = NULL;
+        break;
+
+    case ASN1_ITYPE_PRIMITIVE:
+        if (it->templates)
+            asn1_template_clear(pval, it->templates);
+        else
+            asn1_primitive_clear(pval, it);
+        break;
+
+    case ASN1_ITYPE_MSTRING:
+        asn1_primitive_clear(pval, it);
+        break;
+
+    case ASN1_ITYPE_COMPAT:
+    case ASN1_ITYPE_CHOICE:
+    case ASN1_ITYPE_SEQUENCE:
+    case ASN1_ITYPE_NDEF_SEQUENCE:
+        *pval = NULL;
+        break;
+    }
+}
+
+int ASN1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
+{
+    const ASN1_ITEM *it = ASN1_ITEM_ptr(tt->item);
+    int ret;
+    if (tt->flags & ASN1_TFLG_OPTIONAL) {
+        asn1_template_clear(pval, tt);
+        return 1;
+    }
+    /* If ANY DEFINED BY nothing to do */
+
+    if (tt->flags & ASN1_TFLG_ADB_MASK) {
+        *pval = NULL;
+        return 1;
+    }
+#ifdef CRYPTO_MDEBUG
+    if (tt->field_name)
+        CRYPTO_push_info(tt->field_name);
+#endif
+    /* If SET OF or SEQUENCE OF, its a STACK */
+    if (tt->flags & ASN1_TFLG_SK_MASK) {
+        STACK_OF(ASN1_VALUE) *skval;
+        skval = sk_ASN1_VALUE_new_null();
+        if (!skval) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            ret = 0;
+            goto done;
+        }
+        *pval = (ASN1_VALUE *)skval;
+        ret = 1;
+        goto done;
+    }
+    /* Otherwise pass it back to the item routine */
+    ret = asn1_item_ex_combine_new(pval, it, tt->flags & ASN1_TFLG_COMBINE);
+ done:
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_pop_info();
+#endif
+    return ret;
+}
+
+static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
+{
+    /* If ADB or STACK just NULL the field */
+    if (tt->flags & (ASN1_TFLG_ADB_MASK | ASN1_TFLG_SK_MASK))
+        *pval = NULL;
+    else
+        asn1_item_clear(pval, ASN1_ITEM_ptr(tt->item));
+}
+
+/*
+ * NB: could probably combine most of the real XXX_new() behaviour and junk
+ * all the old functions.
+ */
+
+int ASN1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    ASN1_TYPE *typ;
+    ASN1_STRING *str;
+    int utype;
+
+    if (!it)
+        return 0;
+
+    if (it->funcs) {
+        const ASN1_PRIMITIVE_FUNCS *pf = it->funcs;
+        if (pf->prim_new)
+            return pf->prim_new(pval, it);
+    }
+
+    if (it->itype == ASN1_ITYPE_MSTRING)
+        utype = -1;
+    else
+        utype = it->utype;
+    switch (utype) {
+    case V_ASN1_OBJECT:
+        *pval = (ASN1_VALUE *)OBJ_nid2obj(NID_undef);
+        return 1;
+
+    case V_ASN1_BOOLEAN:
+        *(ASN1_BOOLEAN *)pval = it->size;
+        return 1;
+
+    case V_ASN1_NULL:
+        *pval = (ASN1_VALUE *)1;
+        return 1;
+
+    case V_ASN1_ANY:
+        typ = OPENSSL_malloc(sizeof(ASN1_TYPE));
+        if (!typ)
+            return 0;
+        typ->value.ptr = NULL;
+        typ->type = -1;
+        *pval = (ASN1_VALUE *)typ;
+        break;
+
+    default:
+        str = ASN1_STRING_type_new(utype);
+        if (it->itype == ASN1_ITYPE_MSTRING && str)
+            str->flags |= ASN1_STRING_FLAG_MSTRING;
+        *pval = (ASN1_VALUE *)str;
+        break;
+    }
+    if (*pval)
+        return 1;
+    return 0;
+}
+
+static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    int utype;
+    if (it && it->funcs) {
+        const ASN1_PRIMITIVE_FUNCS *pf = it->funcs;
+        if (pf->prim_clear)
+            pf->prim_clear(pval, it);
+        else
+            *pval = NULL;
+        return;
+    }
+    if (!it || (it->itype == ASN1_ITYPE_MSTRING))
+        utype = -1;
+    else
+        utype = it->utype;
+    if (utype == V_ASN1_BOOLEAN)
+        *(ASN1_BOOLEAN *)pval = it->size;
+    else
+        *pval = NULL;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_new.c.grpc_back

@@ -0,0 +1,387 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <string.h>
+
+#include <openssl/asn1t.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+#include <openssl/obj.h>
+
+#include "asn1_locl.h"
+#include "../internal.h"
+
+
+static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it,
+                                    int combine);
+static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it);
+static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
+static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it);
+
+ASN1_VALUE *ASN1_item_new(const ASN1_ITEM *it)
+{
+    ASN1_VALUE *ret = NULL;
+    if (ASN1_item_ex_new(&ret, it) > 0)
+        return ret;
+    return NULL;
+}
+
+/* Allocate an ASN1 structure */
+
+int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    return asn1_item_ex_combine_new(pval, it, 0);
+}
+
+static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it,
+                                    int combine)
+{
+    const ASN1_TEMPLATE *tt = NULL;
+    const ASN1_COMPAT_FUNCS *cf;
+    const ASN1_EXTERN_FUNCS *ef;
+    const ASN1_AUX *aux = it->funcs;
+    ASN1_aux_cb *asn1_cb;
+    ASN1_VALUE **pseqval;
+    int i;
+    if (aux && aux->asn1_cb)
+        asn1_cb = aux->asn1_cb;
+    else
+        asn1_cb = 0;
+
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_push_info(it->sname);
+#endif
+
+    switch (it->itype) {
+
+    case ASN1_ITYPE_EXTERN:
+        ef = it->funcs;
+        if (ef && ef->asn1_ex_new) {
+            if (!ef->asn1_ex_new(pval, it))
+                goto memerr;
+        }
+        break;
+
+    case ASN1_ITYPE_COMPAT:
+        cf = it->funcs;
+        if (cf && cf->asn1_new) {
+            *pval = cf->asn1_new();
+            if (!*pval)
+                goto memerr;
+        }
+        break;
+
+    case ASN1_ITYPE_PRIMITIVE:
+        if (it->templates) {
+            if (!ASN1_template_new(pval, it->templates))
+                goto memerr;
+        } else if (!ASN1_primitive_new(pval, it))
+            goto memerr;
+        break;
+
+    case ASN1_ITYPE_MSTRING:
+        if (!ASN1_primitive_new(pval, it))
+            goto memerr;
+        break;
+
+    case ASN1_ITYPE_CHOICE:
+        if (asn1_cb) {
+            i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL);
+            if (!i)
+                goto auxerr;
+            if (i == 2) {
+#ifdef CRYPTO_MDEBUG
+                if (it->sname)
+                    CRYPTO_pop_info();
+#endif
+                return 1;
+            }
+        }
+        if (!combine) {
+            *pval = OPENSSL_malloc(it->size);
+            if (!*pval)
+                goto memerr;
+            OPENSSL_memset(*pval, 0, it->size);
+        }
+        asn1_set_choice_selector(pval, -1, it);
+        if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL))
+            goto auxerr2;
+        break;
+
+    case ASN1_ITYPE_NDEF_SEQUENCE:
+    case ASN1_ITYPE_SEQUENCE:
+        if (asn1_cb) {
+            i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL);
+            if (!i)
+                goto auxerr;
+            if (i == 2) {
+#ifdef CRYPTO_MDEBUG
+                if (it->sname)
+                    CRYPTO_pop_info();
+#endif
+                return 1;
+            }
+        }
+        if (!combine) {
+            *pval = OPENSSL_malloc(it->size);
+            if (!*pval)
+                goto memerr;
+            OPENSSL_memset(*pval, 0, it->size);
+            asn1_refcount_set_one(pval, it);
+            asn1_enc_init(pval, it);
+        }
+        for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) {
+            pseqval = asn1_get_field_ptr(pval, tt);
+            if (!ASN1_template_new(pseqval, tt))
+                goto memerr2;
+        }
+        if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL))
+            goto auxerr2;
+        break;
+    }
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_pop_info();
+#endif
+    return 1;
+
+ memerr2:
+    asn1_item_combine_free(pval, it, combine);
+ memerr:
+    OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_pop_info();
+#endif
+    return 0;
+
+ auxerr2:
+    asn1_item_combine_free(pval, it, combine);
+ auxerr:
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_AUX_ERROR);
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_pop_info();
+#endif
+    return 0;
+
+}
+
+static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    const ASN1_EXTERN_FUNCS *ef;
+
+    switch (it->itype) {
+
+    case ASN1_ITYPE_EXTERN:
+        ef = it->funcs;
+        if (ef && ef->asn1_ex_clear)
+            ef->asn1_ex_clear(pval, it);
+        else
+            *pval = NULL;
+        break;
+
+    case ASN1_ITYPE_PRIMITIVE:
+        if (it->templates)
+            asn1_template_clear(pval, it->templates);
+        else
+            asn1_primitive_clear(pval, it);
+        break;
+
+    case ASN1_ITYPE_MSTRING:
+        asn1_primitive_clear(pval, it);
+        break;
+
+    case ASN1_ITYPE_COMPAT:
+    case ASN1_ITYPE_CHOICE:
+    case ASN1_ITYPE_SEQUENCE:
+    case ASN1_ITYPE_NDEF_SEQUENCE:
+        *pval = NULL;
+        break;
+    }
+}
+
+int ASN1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
+{
+    const ASN1_ITEM *it = ASN1_ITEM_ptr(tt->item);
+    int ret;
+    if (tt->flags & ASN1_TFLG_OPTIONAL) {
+        asn1_template_clear(pval, tt);
+        return 1;
+    }
+    /* If ANY DEFINED BY nothing to do */
+
+    if (tt->flags & ASN1_TFLG_ADB_MASK) {
+        *pval = NULL;
+        return 1;
+    }
+#ifdef CRYPTO_MDEBUG
+    if (tt->field_name)
+        CRYPTO_push_info(tt->field_name);
+#endif
+    /* If SET OF or SEQUENCE OF, its a STACK */
+    if (tt->flags & ASN1_TFLG_SK_MASK) {
+        STACK_OF(ASN1_VALUE) *skval;
+        skval = sk_ASN1_VALUE_new_null();
+        if (!skval) {
+            OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+            ret = 0;
+            goto done;
+        }
+        *pval = (ASN1_VALUE *)skval;
+        ret = 1;
+        goto done;
+    }
+    /* Otherwise pass it back to the item routine */
+    ret = asn1_item_ex_combine_new(pval, it, tt->flags & ASN1_TFLG_COMBINE);
+ done:
+#ifdef CRYPTO_MDEBUG
+    if (it->sname)
+        CRYPTO_pop_info();
+#endif
+    return ret;
+}
+
+static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
+{
+    /* If ADB or STACK just NULL the field */
+    if (tt->flags & (ASN1_TFLG_ADB_MASK | ASN1_TFLG_SK_MASK))
+        *pval = NULL;
+    else
+        asn1_item_clear(pval, ASN1_ITEM_ptr(tt->item));
+}
+
+/*
+ * NB: could probably combine most of the real XXX_new() behaviour and junk
+ * all the old functions.
+ */
+
+int ASN1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    ASN1_TYPE *typ;
+    ASN1_STRING *str;
+    int utype;
+
+    if (!it)
+        return 0;
+
+    if (it->funcs) {
+        const ASN1_PRIMITIVE_FUNCS *pf = it->funcs;
+        if (pf->prim_new)
+            return pf->prim_new(pval, it);
+    }
+
+    if (it->itype == ASN1_ITYPE_MSTRING)
+        utype = -1;
+    else
+        utype = it->utype;
+    switch (utype) {
+    case V_ASN1_OBJECT:
+        *pval = (ASN1_VALUE *)OBJ_nid2obj(NID_undef);
+        return 1;
+
+    case V_ASN1_BOOLEAN:
+        *(ASN1_BOOLEAN *)pval = it->size;
+        return 1;
+
+    case V_ASN1_NULL:
+        *pval = (ASN1_VALUE *)1;
+        return 1;
+
+    case V_ASN1_ANY:
+        typ = OPENSSL_malloc(sizeof(ASN1_TYPE));
+        if (!typ)
+            return 0;
+        typ->value.ptr = NULL;
+        typ->type = -1;
+        *pval = (ASN1_VALUE *)typ;
+        break;
+
+    default:
+        str = ASN1_STRING_type_new(utype);
+        if (it->itype == ASN1_ITYPE_MSTRING && str)
+            str->flags |= ASN1_STRING_FLAG_MSTRING;
+        *pval = (ASN1_VALUE *)str;
+        break;
+    }
+    if (*pval)
+        return 1;
+    return 0;
+}
+
+static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    int utype;
+    if (it && it->funcs) {
+        const ASN1_PRIMITIVE_FUNCS *pf = it->funcs;
+        if (pf->prim_clear)
+            pf->prim_clear(pval, it);
+        else
+            *pval = NULL;
+        return;
+    }
+    if (!it || (it->itype == ASN1_ITYPE_MSTRING))
+        utype = -1;
+    else
+        utype = it->utype;
+    if (utype == V_ASN1_BOOLEAN)
+        *(ASN1_BOOLEAN *)pval = it->size;
+    else
+        *pval = NULL;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_typ.c

@@ -0,0 +1,131 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <openssl_grpc/asn1t.h>
+
+/* Declarations for string types */
+
+#define IMPLEMENT_ASN1_STRING_FUNCTIONS(sname) \
+        IMPLEMENT_ASN1_TYPE(sname) \
+        IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(sname, sname, sname) \
+        sname *sname##_new(void) \
+        { \
+                return ASN1_STRING_type_new(V_##sname); \
+        } \
+        void sname##_free(sname *x) \
+        { \
+                ASN1_STRING_free(x); \
+        }
+
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_OCTET_STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_INTEGER)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_ENUMERATED)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_BIT_STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_UTF8STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_PRINTABLESTRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_T61STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_IA5STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_GENERALSTRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_UTCTIME)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_GENERALIZEDTIME)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_VISIBLESTRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_UNIVERSALSTRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_BMPSTRING)
+
+IMPLEMENT_ASN1_TYPE(ASN1_NULL)
+IMPLEMENT_ASN1_FUNCTIONS(ASN1_NULL)
+
+IMPLEMENT_ASN1_TYPE(ASN1_OBJECT)
+
+IMPLEMENT_ASN1_TYPE(ASN1_ANY)
+
+/* Just swallow an ASN1_SEQUENCE in an ASN1_STRING */
+IMPLEMENT_ASN1_TYPE(ASN1_SEQUENCE)
+
+IMPLEMENT_ASN1_FUNCTIONS_fname(ASN1_TYPE, ASN1_ANY, ASN1_TYPE)
+
+/* Multistring types */
+
+IMPLEMENT_ASN1_MSTRING(ASN1_PRINTABLE, B_ASN1_PRINTABLE)
+IMPLEMENT_ASN1_FUNCTIONS_name(ASN1_STRING, ASN1_PRINTABLE)
+
+IMPLEMENT_ASN1_MSTRING(DISPLAYTEXT, B_ASN1_DISPLAYTEXT)
+IMPLEMENT_ASN1_FUNCTIONS_name(ASN1_STRING, DISPLAYTEXT)
+
+IMPLEMENT_ASN1_MSTRING(DIRECTORYSTRING, B_ASN1_DIRECTORYSTRING)
+IMPLEMENT_ASN1_FUNCTIONS_name(ASN1_STRING, DIRECTORYSTRING)
+
+/* Three separate BOOLEAN type: normal, DEFAULT TRUE and DEFAULT FALSE */
+IMPLEMENT_ASN1_TYPE_ex(ASN1_BOOLEAN, ASN1_BOOLEAN, -1)
+IMPLEMENT_ASN1_TYPE_ex(ASN1_TBOOLEAN, ASN1_BOOLEAN, 1)
+IMPLEMENT_ASN1_TYPE_ex(ASN1_FBOOLEAN, ASN1_BOOLEAN, 0)
+
+/* Special, OCTET STRING with indefinite length constructed support */
+
+IMPLEMENT_ASN1_TYPE_ex(ASN1_OCTET_STRING_NDEF, ASN1_OCTET_STRING, ASN1_TFLG_NDEF)
+
+ASN1_ITEM_TEMPLATE(ASN1_SEQUENCE_ANY) =
+        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, ASN1_SEQUENCE_ANY, ASN1_ANY)
+ASN1_ITEM_TEMPLATE_END(ASN1_SEQUENCE_ANY)
+
+ASN1_ITEM_TEMPLATE(ASN1_SET_ANY) =
+        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_OF, 0, ASN1_SET_ANY, ASN1_ANY)
+ASN1_ITEM_TEMPLATE_END(ASN1_SET_ANY)
+
+IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(ASN1_SEQUENCE_ANY, ASN1_SEQUENCE_ANY, ASN1_SEQUENCE_ANY)
+IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(ASN1_SEQUENCE_ANY, ASN1_SET_ANY, ASN1_SET_ANY)

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_typ.c.grpc_back

@@ -0,0 +1,131 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <openssl/asn1t.h>
+
+/* Declarations for string types */
+
+#define IMPLEMENT_ASN1_STRING_FUNCTIONS(sname) \
+        IMPLEMENT_ASN1_TYPE(sname) \
+        IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(sname, sname, sname) \
+        sname *sname##_new(void) \
+        { \
+                return ASN1_STRING_type_new(V_##sname); \
+        } \
+        void sname##_free(sname *x) \
+        { \
+                ASN1_STRING_free(x); \
+        }
+
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_OCTET_STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_INTEGER)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_ENUMERATED)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_BIT_STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_UTF8STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_PRINTABLESTRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_T61STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_IA5STRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_GENERALSTRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_UTCTIME)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_GENERALIZEDTIME)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_VISIBLESTRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_UNIVERSALSTRING)
+IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_BMPSTRING)
+
+IMPLEMENT_ASN1_TYPE(ASN1_NULL)
+IMPLEMENT_ASN1_FUNCTIONS(ASN1_NULL)
+
+IMPLEMENT_ASN1_TYPE(ASN1_OBJECT)
+
+IMPLEMENT_ASN1_TYPE(ASN1_ANY)
+
+/* Just swallow an ASN1_SEQUENCE in an ASN1_STRING */
+IMPLEMENT_ASN1_TYPE(ASN1_SEQUENCE)
+
+IMPLEMENT_ASN1_FUNCTIONS_fname(ASN1_TYPE, ASN1_ANY, ASN1_TYPE)
+
+/* Multistring types */
+
+IMPLEMENT_ASN1_MSTRING(ASN1_PRINTABLE, B_ASN1_PRINTABLE)
+IMPLEMENT_ASN1_FUNCTIONS_name(ASN1_STRING, ASN1_PRINTABLE)
+
+IMPLEMENT_ASN1_MSTRING(DISPLAYTEXT, B_ASN1_DISPLAYTEXT)
+IMPLEMENT_ASN1_FUNCTIONS_name(ASN1_STRING, DISPLAYTEXT)
+
+IMPLEMENT_ASN1_MSTRING(DIRECTORYSTRING, B_ASN1_DIRECTORYSTRING)
+IMPLEMENT_ASN1_FUNCTIONS_name(ASN1_STRING, DIRECTORYSTRING)
+
+/* Three separate BOOLEAN type: normal, DEFAULT TRUE and DEFAULT FALSE */
+IMPLEMENT_ASN1_TYPE_ex(ASN1_BOOLEAN, ASN1_BOOLEAN, -1)
+IMPLEMENT_ASN1_TYPE_ex(ASN1_TBOOLEAN, ASN1_BOOLEAN, 1)
+IMPLEMENT_ASN1_TYPE_ex(ASN1_FBOOLEAN, ASN1_BOOLEAN, 0)
+
+/* Special, OCTET STRING with indefinite length constructed support */
+
+IMPLEMENT_ASN1_TYPE_ex(ASN1_OCTET_STRING_NDEF, ASN1_OCTET_STRING, ASN1_TFLG_NDEF)
+
+ASN1_ITEM_TEMPLATE(ASN1_SEQUENCE_ANY) =
+        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, ASN1_SEQUENCE_ANY, ASN1_ANY)
+ASN1_ITEM_TEMPLATE_END(ASN1_SEQUENCE_ANY)
+
+ASN1_ITEM_TEMPLATE(ASN1_SET_ANY) =
+        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_OF, 0, ASN1_SET_ANY, ASN1_ANY)
+ASN1_ITEM_TEMPLATE_END(ASN1_SET_ANY)
+
+IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(ASN1_SEQUENCE_ANY, ASN1_SEQUENCE_ANY, ASN1_SEQUENCE_ANY)
+IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(ASN1_SEQUENCE_ANY, ASN1_SET_ANY, ASN1_SET_ANY)

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_utl.c

@@ -0,0 +1,280 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/asn1.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include <openssl_grpc/asn1t.h>
+#include <openssl_grpc/mem.h>
+#include <openssl_grpc/obj.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/thread.h>
+
+#include "../internal.h"
+
+
+/* Utility functions for manipulating fields and offsets */
+
+/* Add 'offset' to 'addr' */
+#define offset2ptr(addr, offset) (void *)(((char *)(addr)) + (offset))
+
+/* Given an ASN1_ITEM CHOICE type return the selector value */
+int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  int *sel = offset2ptr(*pval, it->utype);
+  return *sel;
+}
+
+/* Given an ASN1_ITEM CHOICE type set the selector value, return old value. */
+int asn1_set_choice_selector(ASN1_VALUE **pval, int value,
+                             const ASN1_ITEM *it) {
+  int *sel, ret;
+  sel = offset2ptr(*pval, it->utype);
+  ret = *sel;
+  *sel = value;
+  return ret;
+}
+
+static CRYPTO_refcount_t *asn1_get_references(ASN1_VALUE **pval,
+                                              const ASN1_ITEM *it) {
+  if (it->itype != ASN1_ITYPE_SEQUENCE &&
+      it->itype != ASN1_ITYPE_NDEF_SEQUENCE) {
+    return NULL;
+  }
+  const ASN1_AUX *aux = it->funcs;
+  if (!aux || !(aux->flags & ASN1_AFLG_REFCOUNT)) {
+    return NULL;
+  }
+  return offset2ptr(*pval, aux->ref_offset);
+}
+
+void asn1_refcount_set_one(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  CRYPTO_refcount_t *references = asn1_get_references(pval, it);
+  if (references != NULL) {
+    *references = 1;
+  }
+}
+
+int asn1_refcount_dec_and_test_zero(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  CRYPTO_refcount_t *references = asn1_get_references(pval, it);
+  if (references != NULL) {
+    return CRYPTO_refcount_dec_and_test_zero(references);
+  }
+  return 1;
+}
+
+static ASN1_ENCODING *asn1_get_enc_ptr(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  const ASN1_AUX *aux;
+  if (!pval || !*pval) {
+    return NULL;
+  }
+  aux = it->funcs;
+  if (!aux || !(aux->flags & ASN1_AFLG_ENCODING)) {
+    return NULL;
+  }
+  return offset2ptr(*pval, aux->enc_offset);
+}
+
+void asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  ASN1_ENCODING *enc;
+  enc = asn1_get_enc_ptr(pval, it);
+  if (enc) {
+    enc->enc = NULL;
+    enc->len = 0;
+    enc->alias_only = 0;
+    enc->alias_only_on_next_parse = 0;
+    enc->modified = 1;
+  }
+}
+
+void asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  ASN1_ENCODING *enc;
+  enc = asn1_get_enc_ptr(pval, it);
+  if (enc) {
+    if (enc->enc && !enc->alias_only) {
+      OPENSSL_free(enc->enc);
+    }
+    enc->enc = NULL;
+    enc->len = 0;
+    enc->alias_only = 0;
+    enc->alias_only_on_next_parse = 0;
+    enc->modified = 1;
+  }
+}
+
+int asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen,
+                  const ASN1_ITEM *it) {
+  ASN1_ENCODING *enc;
+  enc = asn1_get_enc_ptr(pval, it);
+  if (!enc) {
+    return 1;
+  }
+
+  if (!enc->alias_only) {
+    OPENSSL_free(enc->enc);
+  }
+
+  enc->alias_only = enc->alias_only_on_next_parse;
+  enc->alias_only_on_next_parse = 0;
+
+  if (enc->alias_only) {
+    enc->enc = (uint8_t *) in;
+  } else {
+    enc->enc = OPENSSL_malloc(inlen);
+    if (!enc->enc) {
+      return 0;
+    }
+    OPENSSL_memcpy(enc->enc, in, inlen);
+  }
+
+  enc->len = inlen;
+  enc->modified = 0;
+
+  return 1;
+}
+
+int asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval,
+                     const ASN1_ITEM *it) {
+  ASN1_ENCODING *enc;
+  enc = asn1_get_enc_ptr(pval, it);
+  if (!enc || enc->modified) {
+    return 0;
+  }
+  if (out) {
+    OPENSSL_memcpy(*out, enc->enc, enc->len);
+    *out += enc->len;
+  }
+  if (len) {
+    *len = enc->len;
+  }
+  return 1;
+}
+
+/* Given an ASN1_TEMPLATE get a pointer to a field */
+ASN1_VALUE **asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) {
+  ASN1_VALUE **pvaltmp;
+  if (tt->flags & ASN1_TFLG_COMBINE) {
+    return pval;
+  }
+  pvaltmp = offset2ptr(*pval, tt->offset);
+  /* NOTE for BOOLEAN types the field is just a plain int so we can't return
+   * int **, so settle for (int *). */
+  return pvaltmp;
+}
+
+/* Handle ANY DEFINED BY template, find the selector, look up the relevant
+ * ASN1_TEMPLATE in the table and return it. */
+const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt,
+                                 int nullerr) {
+  const ASN1_ADB *adb;
+  const ASN1_ADB_TABLE *atbl;
+  long selector;
+  ASN1_VALUE **sfld;
+  int i;
+  if (!(tt->flags & ASN1_TFLG_ADB_MASK)) {
+    return tt;
+  }
+
+  /* Else ANY DEFINED BY ... get the table */
+  adb = ASN1_ADB_ptr(tt->item);
+
+  /* Get the selector field */
+  sfld = offset2ptr(*pval, adb->offset);
+
+  /* Check if NULL */
+  if (*sfld == NULL) {
+    if (!adb->null_tt) {
+      goto err;
+    }
+    return adb->null_tt;
+  }
+
+  /* Convert type to a long:
+   * NB: don't check for NID_undef here because it
+   * might be a legitimate value in the table */
+  if (tt->flags & ASN1_TFLG_ADB_OID) {
+    selector = OBJ_obj2nid((ASN1_OBJECT *)*sfld);
+  } else {
+    selector = ASN1_INTEGER_get((ASN1_INTEGER *)*sfld);
+  }
+
+  /* Try to find matching entry in table Maybe should check application types
+   * first to allow application override? Might also be useful to have a flag
+   * which indicates table is sorted and we can do a binary search. For now
+   * stick to a linear search. */
+
+  for (atbl = adb->tbl, i = 0; i < adb->tblcount; i++, atbl++) {
+    if (atbl->value == selector) {
+      return &atbl->tt;
+    }
+  }
+
+  /* FIXME: need to search application table too */
+
+  /* No match, return default type */
+  if (!adb->default_tt) {
+    goto err;
+  }
+  return adb->default_tt;
+
+err:
+  /* FIXME: should log the value or OID of unsupported type */
+  if (nullerr) {
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNSUPPORTED_ANY_DEFINED_BY_TYPE);
+  }
+  return NULL;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/tasn_utl.c.grpc_back

@@ -0,0 +1,280 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/asn1.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include <openssl/asn1t.h>
+#include <openssl/mem.h>
+#include <openssl/obj.h>
+#include <openssl/err.h>
+#include <openssl/thread.h>
+
+#include "../internal.h"
+
+
+/* Utility functions for manipulating fields and offsets */
+
+/* Add 'offset' to 'addr' */
+#define offset2ptr(addr, offset) (void *)(((char *)(addr)) + (offset))
+
+/* Given an ASN1_ITEM CHOICE type return the selector value */
+int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  int *sel = offset2ptr(*pval, it->utype);
+  return *sel;
+}
+
+/* Given an ASN1_ITEM CHOICE type set the selector value, return old value. */
+int asn1_set_choice_selector(ASN1_VALUE **pval, int value,
+                             const ASN1_ITEM *it) {
+  int *sel, ret;
+  sel = offset2ptr(*pval, it->utype);
+  ret = *sel;
+  *sel = value;
+  return ret;
+}
+
+static CRYPTO_refcount_t *asn1_get_references(ASN1_VALUE **pval,
+                                              const ASN1_ITEM *it) {
+  if (it->itype != ASN1_ITYPE_SEQUENCE &&
+      it->itype != ASN1_ITYPE_NDEF_SEQUENCE) {
+    return NULL;
+  }
+  const ASN1_AUX *aux = it->funcs;
+  if (!aux || !(aux->flags & ASN1_AFLG_REFCOUNT)) {
+    return NULL;
+  }
+  return offset2ptr(*pval, aux->ref_offset);
+}
+
+void asn1_refcount_set_one(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  CRYPTO_refcount_t *references = asn1_get_references(pval, it);
+  if (references != NULL) {
+    *references = 1;
+  }
+}
+
+int asn1_refcount_dec_and_test_zero(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  CRYPTO_refcount_t *references = asn1_get_references(pval, it);
+  if (references != NULL) {
+    return CRYPTO_refcount_dec_and_test_zero(references);
+  }
+  return 1;
+}
+
+static ASN1_ENCODING *asn1_get_enc_ptr(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  const ASN1_AUX *aux;
+  if (!pval || !*pval) {
+    return NULL;
+  }
+  aux = it->funcs;
+  if (!aux || !(aux->flags & ASN1_AFLG_ENCODING)) {
+    return NULL;
+  }
+  return offset2ptr(*pval, aux->enc_offset);
+}
+
+void asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  ASN1_ENCODING *enc;
+  enc = asn1_get_enc_ptr(pval, it);
+  if (enc) {
+    enc->enc = NULL;
+    enc->len = 0;
+    enc->alias_only = 0;
+    enc->alias_only_on_next_parse = 0;
+    enc->modified = 1;
+  }
+}
+
+void asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it) {
+  ASN1_ENCODING *enc;
+  enc = asn1_get_enc_ptr(pval, it);
+  if (enc) {
+    if (enc->enc && !enc->alias_only) {
+      OPENSSL_free(enc->enc);
+    }
+    enc->enc = NULL;
+    enc->len = 0;
+    enc->alias_only = 0;
+    enc->alias_only_on_next_parse = 0;
+    enc->modified = 1;
+  }
+}
+
+int asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen,
+                  const ASN1_ITEM *it) {
+  ASN1_ENCODING *enc;
+  enc = asn1_get_enc_ptr(pval, it);
+  if (!enc) {
+    return 1;
+  }
+
+  if (!enc->alias_only) {
+    OPENSSL_free(enc->enc);
+  }
+
+  enc->alias_only = enc->alias_only_on_next_parse;
+  enc->alias_only_on_next_parse = 0;
+
+  if (enc->alias_only) {
+    enc->enc = (uint8_t *) in;
+  } else {
+    enc->enc = OPENSSL_malloc(inlen);
+    if (!enc->enc) {
+      return 0;
+    }
+    OPENSSL_memcpy(enc->enc, in, inlen);
+  }
+
+  enc->len = inlen;
+  enc->modified = 0;
+
+  return 1;
+}
+
+int asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval,
+                     const ASN1_ITEM *it) {
+  ASN1_ENCODING *enc;
+  enc = asn1_get_enc_ptr(pval, it);
+  if (!enc || enc->modified) {
+    return 0;
+  }
+  if (out) {
+    OPENSSL_memcpy(*out, enc->enc, enc->len);
+    *out += enc->len;
+  }
+  if (len) {
+    *len = enc->len;
+  }
+  return 1;
+}
+
+/* Given an ASN1_TEMPLATE get a pointer to a field */
+ASN1_VALUE **asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) {
+  ASN1_VALUE **pvaltmp;
+  if (tt->flags & ASN1_TFLG_COMBINE) {
+    return pval;
+  }
+  pvaltmp = offset2ptr(*pval, tt->offset);
+  /* NOTE for BOOLEAN types the field is just a plain int so we can't return
+   * int **, so settle for (int *). */
+  return pvaltmp;
+}
+
+/* Handle ANY DEFINED BY template, find the selector, look up the relevant
+ * ASN1_TEMPLATE in the table and return it. */
+const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt,
+                                 int nullerr) {
+  const ASN1_ADB *adb;
+  const ASN1_ADB_TABLE *atbl;
+  long selector;
+  ASN1_VALUE **sfld;
+  int i;
+  if (!(tt->flags & ASN1_TFLG_ADB_MASK)) {
+    return tt;
+  }
+
+  /* Else ANY DEFINED BY ... get the table */
+  adb = ASN1_ADB_ptr(tt->item);
+
+  /* Get the selector field */
+  sfld = offset2ptr(*pval, adb->offset);
+
+  /* Check if NULL */
+  if (*sfld == NULL) {
+    if (!adb->null_tt) {
+      goto err;
+    }
+    return adb->null_tt;
+  }
+
+  /* Convert type to a long:
+   * NB: don't check for NID_undef here because it
+   * might be a legitimate value in the table */
+  if (tt->flags & ASN1_TFLG_ADB_OID) {
+    selector = OBJ_obj2nid((ASN1_OBJECT *)*sfld);
+  } else {
+    selector = ASN1_INTEGER_get((ASN1_INTEGER *)*sfld);
+  }
+
+  /* Try to find matching entry in table Maybe should check application types
+   * first to allow application override? Might also be useful to have a flag
+   * which indicates table is sorted and we can do a binary search. For now
+   * stick to a linear search. */
+
+  for (atbl = adb->tbl, i = 0; i < adb->tblcount; i++, atbl++) {
+    if (atbl->value == selector) {
+      return &atbl->tt;
+    }
+  }
+
+  /* FIXME: need to search application table too */
+
+  /* No match, return default type */
+  if (!adb->default_tt) {
+    goto err;
+  }
+  return adb->default_tt;
+
+err:
+  /* FIXME: should log the value or OID of unsupported type */
+  if (nullerr) {
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNSUPPORTED_ANY_DEFINED_BY_TYPE);
+  }
+  return NULL;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/time_support.c

@@ -0,0 +1,206 @@
+/* Written by Richard Levitte ([email protected]) for the OpenSSL
+ * project 2001.
+ * Written by Dr Stephen N Henson ([email protected]) for the OpenSSL
+ * project 2008.
+ */
+/* ====================================================================
+ * Copyright (c) 2001 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    [email protected].
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * ([email protected]).  This product includes software written by Tim
+ * Hudson ([email protected]). */
+
+#if !defined(_POSIX_C_SOURCE)
+#define _POSIX_C_SOURCE 201410L  /* for gmtime_r */
+#endif
+
+#include "asn1_locl.h"
+
+#include <time.h>
+
+
+#define SECS_PER_DAY (24 * 60 * 60)
+
+struct tm *OPENSSL_gmtime(const time_t *time, struct tm *result) {
+#if defined(OPENSSL_WINDOWS)
+  if (gmtime_s(result, time)) {
+    return NULL;
+  }
+  return result;
+#else
+  return gmtime_r(time, result);
+#endif
+}
+
+/* Convert date to and from julian day Uses Fliegel & Van Flandern algorithm */
+static long date_to_julian(int y, int m, int d) {
+  return (1461 * (y + 4800 + (m - 14) / 12)) / 4 +
+         (367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 -
+         (3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 + d - 32075;
+}
+
+static void julian_to_date(long jd, int *y, int *m, int *d) {
+  long L = jd + 68569;
+  long n = (4 * L) / 146097;
+  long i, j;
+
+  L = L - (146097 * n + 3) / 4;
+  i = (4000 * (L + 1)) / 1461001;
+  L = L - (1461 * i) / 4 + 31;
+  j = (80 * L) / 2447;
+  *d = L - (2447 * j) / 80;
+  L = j / 11;
+  *m = j + 2 - (12 * L);
+  *y = 100 * (n - 49) + i + L;
+}
+
+/* Convert tm structure and offset into julian day and seconds */
+static int julian_adj(const struct tm *tm, int off_day, long offset_sec,
+                      long *pday, int *psec) {
+  int offset_hms, offset_day;
+  long time_jd;
+  int time_year, time_month, time_day;
+  /* split offset into days and day seconds */
+  offset_day = offset_sec / SECS_PER_DAY;
+  /* Avoid sign issues with % operator */
+  offset_hms = offset_sec - (offset_day * SECS_PER_DAY);
+  offset_day += off_day;
+  /* Add current time seconds to offset */
+  offset_hms += tm->tm_hour * 3600 + tm->tm_min * 60 + tm->tm_sec;
+  /* Adjust day seconds if overflow */
+  if (offset_hms >= SECS_PER_DAY) {
+    offset_day++;
+    offset_hms -= SECS_PER_DAY;
+  } else if (offset_hms < 0) {
+    offset_day--;
+    offset_hms += SECS_PER_DAY;
+  }
+
+  /* Convert date of time structure into a Julian day number. */
+
+  time_year = tm->tm_year + 1900;
+  time_month = tm->tm_mon + 1;
+  time_day = tm->tm_mday;
+
+  time_jd = date_to_julian(time_year, time_month, time_day);
+
+  /* Work out Julian day of new date */
+  time_jd += offset_day;
+
+  if (time_jd < 0) {
+    return 0;
+  }
+
+  *pday = time_jd;
+  *psec = offset_hms;
+  return 1;
+}
+
+int OPENSSL_gmtime_adj(struct tm *tm, int off_day, long offset_sec) {
+  int time_sec, time_year, time_month, time_day;
+  long time_jd;
+
+  /* Convert time and offset into julian day and seconds */
+  if (!julian_adj(tm, off_day, offset_sec, &time_jd, &time_sec)) {
+    return 0;
+  }
+
+  /* Convert Julian day back to date */
+
+  julian_to_date(time_jd, &time_year, &time_month, &time_day);
+
+  if (time_year < 1900 || time_year > 9999) {
+    return 0;
+  }
+
+  /* Update tm structure */
+
+  tm->tm_year = time_year - 1900;
+  tm->tm_mon = time_month - 1;
+  tm->tm_mday = time_day;
+
+  tm->tm_hour = time_sec / 3600;
+  tm->tm_min = (time_sec / 60) % 60;
+  tm->tm_sec = time_sec % 60;
+
+  return 1;
+}
+
+int OPENSSL_gmtime_diff(int *out_days, int *out_secs, const struct tm *from,
+                        const struct tm *to) {
+  int from_sec, to_sec, diff_sec;
+  long from_jd, to_jd, diff_day;
+
+  if (!julian_adj(from, 0, 0, &from_jd, &from_sec)) {
+    return 0;
+  }
+  if (!julian_adj(to, 0, 0, &to_jd, &to_sec)) {
+    return 0;
+  }
+
+  diff_day = to_jd - from_jd;
+  diff_sec = to_sec - from_sec;
+  /* Adjust differences so both positive or both negative */
+  if (diff_day > 0 && diff_sec < 0) {
+    diff_day--;
+    diff_sec += SECS_PER_DAY;
+  }
+  if (diff_day < 0 && diff_sec > 0) {
+    diff_day++;
+    diff_sec -= SECS_PER_DAY;
+  }
+
+  if (out_days) {
+    *out_days = (int)diff_day;
+  }
+  if (out_secs) {
+    *out_secs = diff_sec;
+  }
+
+  return 1;
+}

Pods/BoringSSL-GRPC/src/crypto/asn1/time_support.c.grpc_back

@@ -0,0 +1,206 @@
+/* Written by Richard Levitte ([email protected]) for the OpenSSL
+ * project 2001.
+ * Written by Dr Stephen N Henson ([email protected]) for the OpenSSL
+ * project 2008.
+ */
+/* ====================================================================
+ * Copyright (c) 2001 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    [email protected].
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * ([email protected]).  This product includes software written by Tim
+ * Hudson ([email protected]). */
+
+#if !defined(_POSIX_C_SOURCE)
+#define _POSIX_C_SOURCE 201410L  /* for gmtime_r */
+#endif
+
+#include "asn1_locl.h"
+
+#include <time.h>
+
+
+#define SECS_PER_DAY (24 * 60 * 60)
+
+struct tm *OPENSSL_gmtime(const time_t *time, struct tm *result) {
+#if defined(OPENSSL_WINDOWS)
+  if (gmtime_s(result, time)) {
+    return NULL;
+  }
+  return result;
+#else
+  return gmtime_r(time, result);
+#endif
+}
+
+/* Convert date to and from julian day Uses Fliegel & Van Flandern algorithm */
+static long date_to_julian(int y, int m, int d) {
+  return (1461 * (y + 4800 + (m - 14) / 12)) / 4 +
+         (367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 -
+         (3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 + d - 32075;
+}
+
+static void julian_to_date(long jd, int *y, int *m, int *d) {
+  long L = jd + 68569;
+  long n = (4 * L) / 146097;
+  long i, j;
+
+  L = L - (146097 * n + 3) / 4;
+  i = (4000 * (L + 1)) / 1461001;
+  L = L - (1461 * i) / 4 + 31;
+  j = (80 * L) / 2447;
+  *d = L - (2447 * j) / 80;
+  L = j / 11;
+  *m = j + 2 - (12 * L);
+  *y = 100 * (n - 49) + i + L;
+}
+
+/* Convert tm structure and offset into julian day and seconds */
+static int julian_adj(const struct tm *tm, int off_day, long offset_sec,
+                      long *pday, int *psec) {
+  int offset_hms, offset_day;
+  long time_jd;
+  int time_year, time_month, time_day;
+  /* split offset into days and day seconds */
+  offset_day = offset_sec / SECS_PER_DAY;
+  /* Avoid sign issues with % operator */
+  offset_hms = offset_sec - (offset_day * SECS_PER_DAY);
+  offset_day += off_day;
+  /* Add current time seconds to offset */
+  offset_hms += tm->tm_hour * 3600 + tm->tm_min * 60 + tm->tm_sec;
+  /* Adjust day seconds if overflow */
+  if (offset_hms >= SECS_PER_DAY) {
+    offset_day++;
+    offset_hms -= SECS_PER_DAY;
+  } else if (offset_hms < 0) {
+    offset_day--;
+    offset_hms += SECS_PER_DAY;
+  }
+
+  /* Convert date of time structure into a Julian day number. */
+
+  time_year = tm->tm_year + 1900;
+  time_month = tm->tm_mon + 1;
+  time_day = tm->tm_mday;
+
+  time_jd = date_to_julian(time_year, time_month, time_day);
+
+  /* Work out Julian day of new date */
+  time_jd += offset_day;
+
+  if (time_jd < 0) {
+    return 0;
+  }
+
+  *pday = time_jd;
+  *psec = offset_hms;
+  return 1;
+}
+
+int OPENSSL_gmtime_adj(struct tm *tm, int off_day, long offset_sec) {
+  int time_sec, time_year, time_month, time_day;
+  long time_jd;
+
+  /* Convert time and offset into julian day and seconds */
+  if (!julian_adj(tm, off_day, offset_sec, &time_jd, &time_sec)) {
+    return 0;
+  }
+
+  /* Convert Julian day back to date */
+
+  julian_to_date(time_jd, &time_year, &time_month, &time_day);
+
+  if (time_year < 1900 || time_year > 9999) {
+    return 0;
+  }
+
+  /* Update tm structure */
+
+  tm->tm_year = time_year - 1900;
+  tm->tm_mon = time_month - 1;
+  tm->tm_mday = time_day;
+
+  tm->tm_hour = time_sec / 3600;
+  tm->tm_min = (time_sec / 60) % 60;
+  tm->tm_sec = time_sec % 60;
+
+  return 1;
+}
+
+int OPENSSL_gmtime_diff(int *out_days, int *out_secs, const struct tm *from,
+                        const struct tm *to) {
+  int from_sec, to_sec, diff_sec;
+  long from_jd, to_jd, diff_day;
+
+  if (!julian_adj(from, 0, 0, &from_jd, &from_sec)) {
+    return 0;
+  }
+  if (!julian_adj(to, 0, 0, &to_jd, &to_sec)) {
+    return 0;
+  }
+
+  diff_day = to_jd - from_jd;
+  diff_sec = to_sec - from_sec;
+  /* Adjust differences so both positive or both negative */
+  if (diff_day > 0 && diff_sec < 0) {
+    diff_day--;
+    diff_sec += SECS_PER_DAY;
+  }
+  if (diff_day < 0 && diff_sec > 0) {
+    diff_day++;
+    diff_sec -= SECS_PER_DAY;
+  }
+
+  if (out_days) {
+    *out_days = (int)diff_day;
+  }
+  if (out_secs) {
+    *out_secs = diff_sec;
+  }
+
+  return 1;
+}

Pods/BoringSSL-GRPC/src/crypto/base64/base64.c

@@ -0,0 +1,466 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/base64.h>
+
+#include <assert.h>
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/type_check.h>
+
+#include "../internal.h"
+
+
+// constant_time_lt_args_8 behaves like |constant_time_lt_8| but takes |uint8_t|
+// arguments for a slightly simpler implementation.
+static inline uint8_t constant_time_lt_args_8(uint8_t a, uint8_t b) {
+  crypto_word_t aw = a;
+  crypto_word_t bw = b;
+  // |crypto_word_t| is larger than |uint8_t|, so |aw| and |bw| have the same
+  // MSB. |aw| < |bw| iff MSB(|aw| - |bw|) is 1.
+  return constant_time_msb_w(aw - bw);
+}
+
+// constant_time_in_range_8 returns |CONSTTIME_TRUE_8| if |min| <= |a| <= |max|
+// and |CONSTTIME_FALSE_8| otherwise.
+static inline uint8_t constant_time_in_range_8(uint8_t a, uint8_t min,
+                                               uint8_t max) {
+  a -= min;
+  return constant_time_lt_args_8(a, max - min + 1);
+}
+
+// Encoding.
+
+static uint8_t conv_bin2ascii(uint8_t a) {
+  // Since PEM is sometimes used to carry private keys, we encode base64 data
+  // itself in constant-time.
+  a &= 0x3f;
+  uint8_t ret = constant_time_select_8(constant_time_eq_8(a, 62), '+', '/');
+  ret =
+      constant_time_select_8(constant_time_lt_args_8(a, 62), a - 52 + '0', ret);
+  ret =
+      constant_time_select_8(constant_time_lt_args_8(a, 52), a - 26 + 'a', ret);
+  ret = constant_time_select_8(constant_time_lt_args_8(a, 26), a + 'A', ret);
+  return ret;
+}
+
+OPENSSL_STATIC_ASSERT(sizeof(((EVP_ENCODE_CTX *)(NULL))->data) % 3 == 0,
+                      "data length must be a multiple of base64 chunk size");
+
+int EVP_EncodedLength(size_t *out_len, size_t len) {
+  if (len + 2 < len) {
+    return 0;
+  }
+  len += 2;
+  len /= 3;
+
+  if (((len << 2) >> 2) != len) {
+    return 0;
+  }
+  len <<= 2;
+
+  if (len + 1 < len) {
+    return 0;
+  }
+  len++;
+
+  *out_len = len;
+  return 1;
+}
+
+void EVP_EncodeInit(EVP_ENCODE_CTX *ctx) {
+  OPENSSL_memset(ctx, 0, sizeof(EVP_ENCODE_CTX));
+}
+
+void EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, uint8_t *out, int *out_len,
+                      const uint8_t *in, size_t in_len) {
+  size_t total = 0;
+
+  *out_len = 0;
+  if (in_len == 0) {
+    return;
+  }
+
+  assert(ctx->data_used < sizeof(ctx->data));
+
+  if (sizeof(ctx->data) - ctx->data_used > in_len) {
+    OPENSSL_memcpy(&ctx->data[ctx->data_used], in, in_len);
+    ctx->data_used += (unsigned)in_len;
+    return;
+  }
+
+  if (ctx->data_used != 0) {
+    const size_t todo = sizeof(ctx->data) - ctx->data_used;
+    OPENSSL_memcpy(&ctx->data[ctx->data_used], in, todo);
+    in += todo;
+    in_len -= todo;
+
+    size_t encoded = EVP_EncodeBlock(out, ctx->data, sizeof(ctx->data));
+    ctx->data_used = 0;
+
+    out += encoded;
+    *(out++) = '\n';
+    *out = '\0';
+
+    total = encoded + 1;
+  }
+
+  while (in_len >= sizeof(ctx->data)) {
+    size_t encoded = EVP_EncodeBlock(out, in, sizeof(ctx->data));
+    in += sizeof(ctx->data);
+    in_len -= sizeof(ctx->data);
+
+    out += encoded;
+    *(out++) = '\n';
+    *out = '\0';
+
+    if (total + encoded + 1 < total) {
+      *out_len = 0;
+      return;
+    }
+
+    total += encoded + 1;
+  }
+
+  if (in_len != 0) {
+    OPENSSL_memcpy(ctx->data, in, in_len);
+  }
+
+  ctx->data_used = (unsigned)in_len;
+
+  if (total > INT_MAX) {
+    // We cannot signal an error, but we can at least avoid making *out_len
+    // negative.
+    total = 0;
+  }
+  *out_len = (int)total;
+}
+
+void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, uint8_t *out, int *out_len) {
+  if (ctx->data_used == 0) {
+    *out_len = 0;
+    return;
+  }
+
+  size_t encoded = EVP_EncodeBlock(out, ctx->data, ctx->data_used);
+  out[encoded++] = '\n';
+  out[encoded] = '\0';
+  ctx->data_used = 0;
+
+  // ctx->data_used is bounded by sizeof(ctx->data), so this does not
+  // overflow.
+  assert(encoded <= INT_MAX);
+  *out_len = (int)encoded;
+}
+
+size_t EVP_EncodeBlock(uint8_t *dst, const uint8_t *src, size_t src_len) {
+  uint32_t l;
+  size_t remaining = src_len, ret = 0;
+
+  while (remaining) {
+    if (remaining >= 3) {
+      l = (((uint32_t)src[0]) << 16L) | (((uint32_t)src[1]) << 8L) | src[2];
+      *(dst++) = conv_bin2ascii(l >> 18L);
+      *(dst++) = conv_bin2ascii(l >> 12L);
+      *(dst++) = conv_bin2ascii(l >> 6L);
+      *(dst++) = conv_bin2ascii(l);
+      remaining -= 3;
+    } else {
+      l = ((uint32_t)src[0]) << 16L;
+      if (remaining == 2) {
+        l |= ((uint32_t)src[1] << 8L);
+      }
+
+      *(dst++) = conv_bin2ascii(l >> 18L);
+      *(dst++) = conv_bin2ascii(l >> 12L);
+      *(dst++) = (remaining == 1) ? '=' : conv_bin2ascii(l >> 6L);
+      *(dst++) = '=';
+      remaining = 0;
+    }
+    ret += 4;
+    src += 3;
+  }
+
+  *dst = '\0';
+  return ret;
+}
+
+
+// Decoding.
+
+int EVP_DecodedLength(size_t *out_len, size_t len) {
+  if (len % 4 != 0) {
+    return 0;
+  }
+
+  *out_len = (len / 4) * 3;
+  return 1;
+}
+
+void EVP_DecodeInit(EVP_ENCODE_CTX *ctx) {
+  OPENSSL_memset(ctx, 0, sizeof(EVP_ENCODE_CTX));
+}
+
+static uint8_t base64_ascii_to_bin(uint8_t a) {
+  // Since PEM is sometimes used to carry private keys, we decode base64 data
+  // itself in constant-time.
+  const uint8_t is_upper = constant_time_in_range_8(a, 'A', 'Z');
+  const uint8_t is_lower = constant_time_in_range_8(a, 'a', 'z');
+  const uint8_t is_digit = constant_time_in_range_8(a, '0', '9');
+  const uint8_t is_plus = constant_time_eq_8(a, '+');
+  const uint8_t is_slash = constant_time_eq_8(a, '/');
+  const uint8_t is_equals = constant_time_eq_8(a, '=');
+
+  uint8_t ret = 0xff;  // 0xff signals invalid.
+  ret = constant_time_select_8(is_upper, a - 'A', ret);       // [0,26)
+  ret = constant_time_select_8(is_lower, a - 'a' + 26, ret);  // [26,52)
+  ret = constant_time_select_8(is_digit, a - '0' + 52, ret);  // [52,62)
+  ret = constant_time_select_8(is_plus, 62, ret);
+  ret = constant_time_select_8(is_slash, 63, ret);
+  // Padding maps to zero, to be further handled by the caller.
+  ret = constant_time_select_8(is_equals, 0, ret);
+  return ret;
+}
+
+// base64_decode_quad decodes a single “quad” (i.e. four characters) of base64
+// data and writes up to three bytes to |out|. It sets |*out_num_bytes| to the
+// number of bytes written, which will be less than three if the quad ended
+// with padding.  It returns one on success or zero on error.
+static int base64_decode_quad(uint8_t *out, size_t *out_num_bytes,
+                              const uint8_t *in) {
+  const uint8_t a = base64_ascii_to_bin(in[0]);
+  const uint8_t b = base64_ascii_to_bin(in[1]);
+  const uint8_t c = base64_ascii_to_bin(in[2]);
+  const uint8_t d = base64_ascii_to_bin(in[3]);
+  if (a == 0xff || b == 0xff || c == 0xff || d == 0xff) {
+    return 0;
+  }
+
+  const uint32_t v = ((uint32_t)a) << 18 | ((uint32_t)b) << 12 |
+                     ((uint32_t)c) << 6 | (uint32_t)d;
+
+  const unsigned padding_pattern = (in[0] == '=') << 3 |
+                                   (in[1] == '=') << 2 |
+                                   (in[2] == '=') << 1 |
+                                   (in[3] == '=');
+
+  switch (padding_pattern) {
+    case 0:
+      // The common case of no padding.
+      *out_num_bytes = 3;
+      out[0] = v >> 16;
+      out[1] = v >> 8;
+      out[2] = v;
+      break;
+
+    case 1:  // xxx=
+      *out_num_bytes = 2;
+      out[0] = v >> 16;
+      out[1] = v >> 8;
+      break;
+
+    case 3:  // xx==
+      *out_num_bytes = 1;
+      out[0] = v >> 16;
+      break;
+
+    default:
+      return 0;
+  }
+
+  return 1;
+}
+
+int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, uint8_t *out, int *out_len,
+                     const uint8_t *in, size_t in_len) {
+  *out_len = 0;
+
+  if (ctx->error_encountered) {
+    return -1;
+  }
+
+  size_t bytes_out = 0, i;
+  for (i = 0; i < in_len; i++) {
+    const char c = in[i];
+    switch (c) {
+      case ' ':
+      case '\t':
+      case '\r':
+      case '\n':
+        continue;
+    }
+
+    if (ctx->eof_seen) {
+      ctx->error_encountered = 1;
+      return -1;
+    }
+
+    ctx->data[ctx->data_used++] = c;
+    if (ctx->data_used == 4) {
+      size_t num_bytes_resulting;
+      if (!base64_decode_quad(out, &num_bytes_resulting, ctx->data)) {
+        ctx->error_encountered = 1;
+        return -1;
+      }
+
+      ctx->data_used = 0;
+      bytes_out += num_bytes_resulting;
+      out += num_bytes_resulting;
+
+      if (num_bytes_resulting < 3) {
+        ctx->eof_seen = 1;
+      }
+    }
+  }
+
+  if (bytes_out > INT_MAX) {
+    ctx->error_encountered = 1;
+    *out_len = 0;
+    return -1;
+  }
+  *out_len = (int)bytes_out;
+
+  if (ctx->eof_seen) {
+    return 0;
+  }
+
+  return 1;
+}
+
+int EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, uint8_t *out, int *out_len) {
+  *out_len = 0;
+  if (ctx->error_encountered || ctx->data_used != 0) {
+    return -1;
+  }
+
+  return 1;
+}
+
+int EVP_DecodeBase64(uint8_t *out, size_t *out_len, size_t max_out,
+                     const uint8_t *in, size_t in_len) {
+  *out_len = 0;
+
+  if (in_len % 4 != 0) {
+    return 0;
+  }
+
+  size_t max_len;
+  if (!EVP_DecodedLength(&max_len, in_len) ||
+      max_out < max_len) {
+    return 0;
+  }
+
+  size_t i, bytes_out = 0;
+  for (i = 0; i < in_len; i += 4) {
+    size_t num_bytes_resulting;
+
+    if (!base64_decode_quad(out, &num_bytes_resulting, &in[i])) {
+      return 0;
+    }
+
+    bytes_out += num_bytes_resulting;
+    out += num_bytes_resulting;
+    if (num_bytes_resulting != 3 && i != in_len - 4) {
+      return 0;
+    }
+  }
+
+  *out_len = bytes_out;
+  return 1;
+}
+
+int EVP_DecodeBlock(uint8_t *dst, const uint8_t *src, size_t src_len) {
+  // Trim spaces and tabs from the beginning of the input.
+  while (src_len > 0) {
+    if (src[0] != ' ' && src[0] != '\t') {
+      break;
+    }
+
+    src++;
+    src_len--;
+  }
+
+  // Trim newlines, spaces and tabs from the end of the line.
+  while (src_len > 0) {
+    switch (src[src_len-1]) {
+      case ' ':
+      case '\t':
+      case '\r':
+      case '\n':
+        src_len--;
+        continue;
+    }
+
+    break;
+  }
+
+  size_t dst_len;
+  if (!EVP_DecodedLength(&dst_len, src_len) ||
+      dst_len > INT_MAX ||
+      !EVP_DecodeBase64(dst, &dst_len, dst_len, src, src_len)) {
+    return -1;
+  }
+
+  // EVP_DecodeBlock does not take padding into account, so put the
+  // NULs back in... so the caller can strip them back out.
+  while (dst_len % 3 != 0) {
+    dst[dst_len++] = '\0';
+  }
+  assert(dst_len <= INT_MAX);
+
+  return (int)dst_len;
+}

Pods/BoringSSL-GRPC/src/crypto/base64/base64.c.grpc_back

@@ -0,0 +1,466 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/base64.h>
+
+#include <assert.h>
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/type_check.h>
+
+#include "../internal.h"
+
+
+// constant_time_lt_args_8 behaves like |constant_time_lt_8| but takes |uint8_t|
+// arguments for a slightly simpler implementation.
+static inline uint8_t constant_time_lt_args_8(uint8_t a, uint8_t b) {
+  crypto_word_t aw = a;
+  crypto_word_t bw = b;
+  // |crypto_word_t| is larger than |uint8_t|, so |aw| and |bw| have the same
+  // MSB. |aw| < |bw| iff MSB(|aw| - |bw|) is 1.
+  return constant_time_msb_w(aw - bw);
+}
+
+// constant_time_in_range_8 returns |CONSTTIME_TRUE_8| if |min| <= |a| <= |max|
+// and |CONSTTIME_FALSE_8| otherwise.
+static inline uint8_t constant_time_in_range_8(uint8_t a, uint8_t min,
+                                               uint8_t max) {
+  a -= min;
+  return constant_time_lt_args_8(a, max - min + 1);
+}
+
+// Encoding.
+
+static uint8_t conv_bin2ascii(uint8_t a) {
+  // Since PEM is sometimes used to carry private keys, we encode base64 data
+  // itself in constant-time.
+  a &= 0x3f;
+  uint8_t ret = constant_time_select_8(constant_time_eq_8(a, 62), '+', '/');
+  ret =
+      constant_time_select_8(constant_time_lt_args_8(a, 62), a - 52 + '0', ret);
+  ret =
+      constant_time_select_8(constant_time_lt_args_8(a, 52), a - 26 + 'a', ret);
+  ret = constant_time_select_8(constant_time_lt_args_8(a, 26), a + 'A', ret);
+  return ret;
+}
+
+OPENSSL_STATIC_ASSERT(sizeof(((EVP_ENCODE_CTX *)(NULL))->data) % 3 == 0,
+                      "data length must be a multiple of base64 chunk size");
+
+int EVP_EncodedLength(size_t *out_len, size_t len) {
+  if (len + 2 < len) {
+    return 0;
+  }
+  len += 2;
+  len /= 3;
+
+  if (((len << 2) >> 2) != len) {
+    return 0;
+  }
+  len <<= 2;
+
+  if (len + 1 < len) {
+    return 0;
+  }
+  len++;
+
+  *out_len = len;
+  return 1;
+}
+
+void EVP_EncodeInit(EVP_ENCODE_CTX *ctx) {
+  OPENSSL_memset(ctx, 0, sizeof(EVP_ENCODE_CTX));
+}
+
+void EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, uint8_t *out, int *out_len,
+                      const uint8_t *in, size_t in_len) {
+  size_t total = 0;
+
+  *out_len = 0;
+  if (in_len == 0) {
+    return;
+  }
+
+  assert(ctx->data_used < sizeof(ctx->data));
+
+  if (sizeof(ctx->data) - ctx->data_used > in_len) {
+    OPENSSL_memcpy(&ctx->data[ctx->data_used], in, in_len);
+    ctx->data_used += (unsigned)in_len;
+    return;
+  }
+
+  if (ctx->data_used != 0) {
+    const size_t todo = sizeof(ctx->data) - ctx->data_used;
+    OPENSSL_memcpy(&ctx->data[ctx->data_used], in, todo);
+    in += todo;
+    in_len -= todo;
+
+    size_t encoded = EVP_EncodeBlock(out, ctx->data, sizeof(ctx->data));
+    ctx->data_used = 0;
+
+    out += encoded;
+    *(out++) = '\n';
+    *out = '\0';
+
+    total = encoded + 1;
+  }
+
+  while (in_len >= sizeof(ctx->data)) {
+    size_t encoded = EVP_EncodeBlock(out, in, sizeof(ctx->data));
+    in += sizeof(ctx->data);
+    in_len -= sizeof(ctx->data);
+
+    out += encoded;
+    *(out++) = '\n';
+    *out = '\0';
+
+    if (total + encoded + 1 < total) {
+      *out_len = 0;
+      return;
+    }
+
+    total += encoded + 1;
+  }
+
+  if (in_len != 0) {
+    OPENSSL_memcpy(ctx->data, in, in_len);
+  }
+
+  ctx->data_used = (unsigned)in_len;
+
+  if (total > INT_MAX) {
+    // We cannot signal an error, but we can at least avoid making *out_len
+    // negative.
+    total = 0;
+  }
+  *out_len = (int)total;
+}
+
+void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, uint8_t *out, int *out_len) {
+  if (ctx->data_used == 0) {
+    *out_len = 0;
+    return;
+  }
+
+  size_t encoded = EVP_EncodeBlock(out, ctx->data, ctx->data_used);
+  out[encoded++] = '\n';
+  out[encoded] = '\0';
+  ctx->data_used = 0;
+
+  // ctx->data_used is bounded by sizeof(ctx->data), so this does not
+  // overflow.
+  assert(encoded <= INT_MAX);
+  *out_len = (int)encoded;
+}
+
+size_t EVP_EncodeBlock(uint8_t *dst, const uint8_t *src, size_t src_len) {
+  uint32_t l;
+  size_t remaining = src_len, ret = 0;
+
+  while (remaining) {
+    if (remaining >= 3) {
+      l = (((uint32_t)src[0]) << 16L) | (((uint32_t)src[1]) << 8L) | src[2];
+      *(dst++) = conv_bin2ascii(l >> 18L);
+      *(dst++) = conv_bin2ascii(l >> 12L);
+      *(dst++) = conv_bin2ascii(l >> 6L);
+      *(dst++) = conv_bin2ascii(l);
+      remaining -= 3;
+    } else {
+      l = ((uint32_t)src[0]) << 16L;
+      if (remaining == 2) {
+        l |= ((uint32_t)src[1] << 8L);
+      }
+
+      *(dst++) = conv_bin2ascii(l >> 18L);
+      *(dst++) = conv_bin2ascii(l >> 12L);
+      *(dst++) = (remaining == 1) ? '=' : conv_bin2ascii(l >> 6L);
+      *(dst++) = '=';
+      remaining = 0;
+    }
+    ret += 4;
+    src += 3;
+  }
+
+  *dst = '\0';
+  return ret;
+}
+
+
+// Decoding.
+
+int EVP_DecodedLength(size_t *out_len, size_t len) {
+  if (len % 4 != 0) {
+    return 0;
+  }
+
+  *out_len = (len / 4) * 3;
+  return 1;
+}
+
+void EVP_DecodeInit(EVP_ENCODE_CTX *ctx) {
+  OPENSSL_memset(ctx, 0, sizeof(EVP_ENCODE_CTX));
+}
+
+static uint8_t base64_ascii_to_bin(uint8_t a) {
+  // Since PEM is sometimes used to carry private keys, we decode base64 data
+  // itself in constant-time.
+  const uint8_t is_upper = constant_time_in_range_8(a, 'A', 'Z');
+  const uint8_t is_lower = constant_time_in_range_8(a, 'a', 'z');
+  const uint8_t is_digit = constant_time_in_range_8(a, '0', '9');
+  const uint8_t is_plus = constant_time_eq_8(a, '+');
+  const uint8_t is_slash = constant_time_eq_8(a, '/');
+  const uint8_t is_equals = constant_time_eq_8(a, '=');
+
+  uint8_t ret = 0xff;  // 0xff signals invalid.
+  ret = constant_time_select_8(is_upper, a - 'A', ret);       // [0,26)
+  ret = constant_time_select_8(is_lower, a - 'a' + 26, ret);  // [26,52)
+  ret = constant_time_select_8(is_digit, a - '0' + 52, ret);  // [52,62)
+  ret = constant_time_select_8(is_plus, 62, ret);
+  ret = constant_time_select_8(is_slash, 63, ret);
+  // Padding maps to zero, to be further handled by the caller.
+  ret = constant_time_select_8(is_equals, 0, ret);
+  return ret;
+}
+
+// base64_decode_quad decodes a single “quad” (i.e. four characters) of base64
+// data and writes up to three bytes to |out|. It sets |*out_num_bytes| to the
+// number of bytes written, which will be less than three if the quad ended
+// with padding.  It returns one on success or zero on error.
+static int base64_decode_quad(uint8_t *out, size_t *out_num_bytes,
+                              const uint8_t *in) {
+  const uint8_t a = base64_ascii_to_bin(in[0]);
+  const uint8_t b = base64_ascii_to_bin(in[1]);
+  const uint8_t c = base64_ascii_to_bin(in[2]);
+  const uint8_t d = base64_ascii_to_bin(in[3]);
+  if (a == 0xff || b == 0xff || c == 0xff || d == 0xff) {
+    return 0;
+  }
+
+  const uint32_t v = ((uint32_t)a) << 18 | ((uint32_t)b) << 12 |
+                     ((uint32_t)c) << 6 | (uint32_t)d;
+
+  const unsigned padding_pattern = (in[0] == '=') << 3 |
+                                   (in[1] == '=') << 2 |
+                                   (in[2] == '=') << 1 |
+                                   (in[3] == '=');
+
+  switch (padding_pattern) {
+    case 0:
+      // The common case of no padding.
+      *out_num_bytes = 3;
+      out[0] = v >> 16;
+      out[1] = v >> 8;
+      out[2] = v;
+      break;
+
+    case 1:  // xxx=
+      *out_num_bytes = 2;
+      out[0] = v >> 16;
+      out[1] = v >> 8;
+      break;
+
+    case 3:  // xx==
+      *out_num_bytes = 1;
+      out[0] = v >> 16;
+      break;
+
+    default:
+      return 0;
+  }
+
+  return 1;
+}
+
+int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, uint8_t *out, int *out_len,
+                     const uint8_t *in, size_t in_len) {
+  *out_len = 0;
+
+  if (ctx->error_encountered) {
+    return -1;
+  }
+
+  size_t bytes_out = 0, i;
+  for (i = 0; i < in_len; i++) {
+    const char c = in[i];
+    switch (c) {
+      case ' ':
+      case '\t':
+      case '\r':
+      case '\n':
+        continue;
+    }
+
+    if (ctx->eof_seen) {
+      ctx->error_encountered = 1;
+      return -1;
+    }
+
+    ctx->data[ctx->data_used++] = c;
+    if (ctx->data_used == 4) {
+      size_t num_bytes_resulting;
+      if (!base64_decode_quad(out, &num_bytes_resulting, ctx->data)) {
+        ctx->error_encountered = 1;
+        return -1;
+      }
+
+      ctx->data_used = 0;
+      bytes_out += num_bytes_resulting;
+      out += num_bytes_resulting;
+
+      if (num_bytes_resulting < 3) {
+        ctx->eof_seen = 1;
+      }
+    }
+  }
+
+  if (bytes_out > INT_MAX) {
+    ctx->error_encountered = 1;
+    *out_len = 0;
+    return -1;
+  }
+  *out_len = (int)bytes_out;
+
+  if (ctx->eof_seen) {
+    return 0;
+  }
+
+  return 1;
+}
+
+int EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, uint8_t *out, int *out_len) {
+  *out_len = 0;
+  if (ctx->error_encountered || ctx->data_used != 0) {
+    return -1;
+  }
+
+  return 1;
+}
+
+int EVP_DecodeBase64(uint8_t *out, size_t *out_len, size_t max_out,
+                     const uint8_t *in, size_t in_len) {
+  *out_len = 0;
+
+  if (in_len % 4 != 0) {
+    return 0;
+  }
+
+  size_t max_len;
+  if (!EVP_DecodedLength(&max_len, in_len) ||
+      max_out < max_len) {
+    return 0;
+  }
+
+  size_t i, bytes_out = 0;
+  for (i = 0; i < in_len; i += 4) {
+    size_t num_bytes_resulting;
+
+    if (!base64_decode_quad(out, &num_bytes_resulting, &in[i])) {
+      return 0;
+    }
+
+    bytes_out += num_bytes_resulting;
+    out += num_bytes_resulting;
+    if (num_bytes_resulting != 3 && i != in_len - 4) {
+      return 0;
+    }
+  }
+
+  *out_len = bytes_out;
+  return 1;
+}
+
+int EVP_DecodeBlock(uint8_t *dst, const uint8_t *src, size_t src_len) {
+  // Trim spaces and tabs from the beginning of the input.
+  while (src_len > 0) {
+    if (src[0] != ' ' && src[0] != '\t') {
+      break;
+    }
+
+    src++;
+    src_len--;
+  }
+
+  // Trim newlines, spaces and tabs from the end of the line.
+  while (src_len > 0) {
+    switch (src[src_len-1]) {
+      case ' ':
+      case '\t':
+      case '\r':
+      case '\n':
+        src_len--;
+        continue;
+    }
+
+    break;
+  }
+
+  size_t dst_len;
+  if (!EVP_DecodedLength(&dst_len, src_len) ||
+      dst_len > INT_MAX ||
+      !EVP_DecodeBase64(dst, &dst_len, dst_len, src, src_len)) {
+    return -1;
+  }
+
+  // EVP_DecodeBlock does not take padding into account, so put the
+  // NULs back in... so the caller can strip them back out.
+  while (dst_len % 3 != 0) {
+    dst[dst_len++] = '\0';
+  }
+  assert(dst_len <= INT_MAX);
+
+  return (int)dst_len;
+}

Pods/BoringSSL-GRPC/src/crypto/bio/bio.c

@@ -0,0 +1,700 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/bio.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/asn1.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+#include <openssl_grpc/thread.h>
+
+#include "../internal.h"
+
+
+BIO *BIO_new(const BIO_METHOD *method) {
+  BIO *ret = OPENSSL_malloc(sizeof(BIO));
+  if (ret == NULL) {
+    OPENSSL_PUT_ERROR(BIO, ERR_R_MALLOC_FAILURE);
+    return NULL;
+  }
+
+  OPENSSL_memset(ret, 0, sizeof(BIO));
+  ret->method = method;
+  ret->shutdown = 1;
+  ret->references = 1;
+
+  if (method->create != NULL && !method->create(ret)) {
+    OPENSSL_free(ret);
+    return NULL;
+  }
+
+  return ret;
+}
+
+int BIO_free(BIO *bio) {
+  BIO *next_bio;
+
+  for (; bio != NULL; bio = next_bio) {
+    if (!CRYPTO_refcount_dec_and_test_zero(&bio->references)) {
+      return 0;
+    }
+
+    next_bio = BIO_pop(bio);
+
+    if (bio->method != NULL && bio->method->destroy != NULL) {
+      bio->method->destroy(bio);
+    }
+
+    OPENSSL_free(bio);
+  }
+  return 1;
+}
+
+int BIO_up_ref(BIO *bio) {
+  CRYPTO_refcount_inc(&bio->references);
+  return 1;
+}
+
+void BIO_vfree(BIO *bio) {
+  BIO_free(bio);
+}
+
+void BIO_free_all(BIO *bio) {
+  BIO_free(bio);
+}
+
+int BIO_read(BIO *bio, void *buf, int len) {
+  if (bio == NULL || bio->method == NULL || bio->method->bread == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return -2;
+  }
+  if (!bio->init) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNINITIALIZED);
+    return -2;
+  }
+  if (len <= 0) {
+    return 0;
+  }
+  int ret = bio->method->bread(bio, buf, len);
+  if (ret > 0) {
+    bio->num_read += ret;
+  }
+  return ret;
+}
+
+int BIO_gets(BIO *bio, char *buf, int len) {
+  if (bio == NULL || bio->method == NULL || bio->method->bgets == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return -2;
+  }
+  if (!bio->init) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNINITIALIZED);
+    return -2;
+  }
+  if (len <= 0) {
+    return 0;
+  }
+  int ret = bio->method->bgets(bio, buf, len);
+  if (ret > 0) {
+    bio->num_read += ret;
+  }
+  return ret;
+}
+
+int BIO_write(BIO *bio, const void *in, int inl) {
+  if (bio == NULL || bio->method == NULL || bio->method->bwrite == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return -2;
+  }
+  if (!bio->init) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNINITIALIZED);
+    return -2;
+  }
+  if (inl <= 0) {
+    return 0;
+  }
+  int ret = bio->method->bwrite(bio, in, inl);
+  if (ret > 0) {
+    bio->num_write += ret;
+  }
+  return ret;
+}
+
+int BIO_write_all(BIO *bio, const void *data, size_t len) {
+  const uint8_t *data_u8 = data;
+  while (len > 0) {
+    int ret = BIO_write(bio, data_u8, len > INT_MAX ? INT_MAX : (int)len);
+    if (ret <= 0) {
+      return 0;
+    }
+    data_u8 += ret;
+    len -= ret;
+  }
+  return 1;
+}
+
+int BIO_puts(BIO *bio, const char *in) {
+  return BIO_write(bio, in, strlen(in));
+}
+
+int BIO_flush(BIO *bio) {
+  return BIO_ctrl(bio, BIO_CTRL_FLUSH, 0, NULL);
+}
+
+long BIO_ctrl(BIO *bio, int cmd, long larg, void *parg) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->method == NULL || bio->method->ctrl == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return -2;
+  }
+
+  return bio->method->ctrl(bio, cmd, larg, parg);
+}
+
+char *BIO_ptr_ctrl(BIO *b, int cmd, long larg) {
+  char *p = NULL;
+
+  if (BIO_ctrl(b, cmd, larg, (void *)&p) <= 0) {
+    return NULL;
+  }
+
+  return p;
+}
+
+long BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg) {
+  int i = iarg;
+
+  return BIO_ctrl(b, cmd, larg, (void *)&i);
+}
+
+int BIO_reset(BIO *bio) {
+  return BIO_ctrl(bio, BIO_CTRL_RESET, 0, NULL);
+}
+
+int BIO_eof(BIO *bio) {
+  return BIO_ctrl(bio, BIO_CTRL_EOF, 0, NULL);
+}
+
+void BIO_set_flags(BIO *bio, int flags) {
+  bio->flags |= flags;
+}
+
+int BIO_test_flags(const BIO *bio, int flags) {
+  return bio->flags & flags;
+}
+
+int BIO_should_read(const BIO *bio) {
+  return BIO_test_flags(bio, BIO_FLAGS_READ);
+}
+
+int BIO_should_write(const BIO *bio) {
+  return BIO_test_flags(bio, BIO_FLAGS_WRITE);
+}
+
+int BIO_should_retry(const BIO *bio) {
+  return BIO_test_flags(bio, BIO_FLAGS_SHOULD_RETRY);
+}
+
+int BIO_should_io_special(const BIO *bio) {
+  return BIO_test_flags(bio, BIO_FLAGS_IO_SPECIAL);
+}
+
+int BIO_get_retry_reason(const BIO *bio) { return bio->retry_reason; }
+
+void BIO_clear_flags(BIO *bio, int flags) {
+  bio->flags &= ~flags;
+}
+
+void BIO_set_retry_read(BIO *bio) {
+  bio->flags |= BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY;
+}
+
+void BIO_set_retry_write(BIO *bio) {
+  bio->flags |= BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY;
+}
+
+static const int kRetryFlags = BIO_FLAGS_RWS | BIO_FLAGS_SHOULD_RETRY;
+
+int BIO_get_retry_flags(BIO *bio) {
+  return bio->flags & kRetryFlags;
+}
+
+void BIO_clear_retry_flags(BIO *bio) {
+  bio->flags &= ~kRetryFlags;
+  bio->retry_reason = 0;
+}
+
+int BIO_method_type(const BIO *bio) { return bio->method->type; }
+
+void BIO_copy_next_retry(BIO *bio) {
+  BIO_clear_retry_flags(bio);
+  BIO_set_flags(bio, BIO_get_retry_flags(bio->next_bio));
+  bio->retry_reason = bio->next_bio->retry_reason;
+}
+
+long BIO_callback_ctrl(BIO *bio, int cmd, bio_info_cb fp) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->method == NULL || bio->method->callback_ctrl == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return 0;
+  }
+
+  return bio->method->callback_ctrl(bio, cmd, fp);
+}
+
+size_t BIO_pending(const BIO *bio) {
+  const long r = BIO_ctrl((BIO *) bio, BIO_CTRL_PENDING, 0, NULL);
+  assert(r >= 0);
+
+  if (r < 0) {
+    return 0;
+  }
+  return r;
+}
+
+size_t BIO_ctrl_pending(const BIO *bio) {
+  return BIO_pending(bio);
+}
+
+size_t BIO_wpending(const BIO *bio) {
+  const long r = BIO_ctrl((BIO *) bio, BIO_CTRL_WPENDING, 0, NULL);
+  assert(r >= 0);
+
+  if (r < 0) {
+    return 0;
+  }
+  return r;
+}
+
+int BIO_set_close(BIO *bio, int close_flag) {
+  return BIO_ctrl(bio, BIO_CTRL_SET_CLOSE, close_flag, NULL);
+}
+
+OPENSSL_EXPORT size_t BIO_number_read(const BIO *bio) {
+  return bio->num_read;
+}
+
+OPENSSL_EXPORT size_t BIO_number_written(const BIO *bio) {
+  return bio->num_write;
+}
+
+BIO *BIO_push(BIO *bio, BIO *appended_bio) {
+  BIO *last_bio;
+
+  if (bio == NULL) {
+    return bio;
+  }
+
+  last_bio = bio;
+  while (last_bio->next_bio != NULL) {
+    last_bio = last_bio->next_bio;
+  }
+
+  last_bio->next_bio = appended_bio;
+  return bio;
+}
+
+BIO *BIO_pop(BIO *bio) {
+  BIO *ret;
+
+  if (bio == NULL) {
+    return NULL;
+  }
+  ret = bio->next_bio;
+  bio->next_bio = NULL;
+  return ret;
+}
+
+BIO *BIO_next(BIO *bio) {
+  if (!bio) {
+    return NULL;
+  }
+  return bio->next_bio;
+}
+
+BIO *BIO_find_type(BIO *bio, int type) {
+  int method_type, mask;
+
+  if (!bio) {
+    return NULL;
+  }
+  mask = type & 0xff;
+
+  do {
+    if (bio->method != NULL) {
+      method_type = bio->method->type;
+
+      if (!mask) {
+        if (method_type & type) {
+          return bio;
+        }
+      } else if (method_type == type) {
+        return bio;
+      }
+    }
+    bio = bio->next_bio;
+  } while (bio != NULL);
+
+  return NULL;
+}
+
+int BIO_indent(BIO *bio, unsigned indent, unsigned max_indent) {
+  if (indent > max_indent) {
+    indent = max_indent;
+  }
+
+  while (indent--) {
+    if (BIO_puts(bio, " ") != 1) {
+      return 0;
+    }
+  }
+  return 1;
+}
+
+static int print_bio(const char *str, size_t len, void *bio) {
+  return BIO_write((BIO *)bio, str, len);
+}
+
+void ERR_print_errors(BIO *bio) {
+  ERR_print_errors_cb(print_bio, bio);
+}
+
+// bio_read_all reads everything from |bio| and prepends |prefix| to it. On
+// success, |*out| is set to an allocated buffer (which should be freed with
+// |OPENSSL_free|), |*out_len| is set to its length and one is returned. The
+// buffer will contain |prefix| followed by the contents of |bio|. On failure,
+// zero is returned.
+//
+// The function will fail if the size of the output would equal or exceed
+// |max_len|.
+static int bio_read_all(BIO *bio, uint8_t **out, size_t *out_len,
+                        const uint8_t *prefix, size_t prefix_len,
+                        size_t max_len) {
+  static const size_t kChunkSize = 4096;
+
+  size_t len = prefix_len + kChunkSize;
+  if (len > max_len) {
+    len = max_len;
+  }
+  if (len < prefix_len) {
+    return 0;
+  }
+  *out = OPENSSL_malloc(len);
+  if (*out == NULL) {
+    return 0;
+  }
+  OPENSSL_memcpy(*out, prefix, prefix_len);
+  size_t done = prefix_len;
+
+  for (;;) {
+    if (done == len) {
+      OPENSSL_free(*out);
+      return 0;
+    }
+    const size_t todo = len - done;
+    assert(todo < INT_MAX);
+    const int n = BIO_read(bio, *out + done, todo);
+    if (n == 0) {
+      *out_len = done;
+      return 1;
+    } else if (n == -1) {
+      OPENSSL_free(*out);
+      return 0;
+    }
+
+    done += n;
+    if (len < max_len && len - done < kChunkSize / 2) {
+      len += kChunkSize;
+      if (len < kChunkSize || len > max_len) {
+        len = max_len;
+      }
+      uint8_t *new_buf = OPENSSL_realloc(*out, len);
+      if (new_buf == NULL) {
+        OPENSSL_free(*out);
+        return 0;
+      }
+      *out = new_buf;
+    }
+  }
+}
+
+// bio_read_full reads |len| bytes |bio| and writes them into |out|. It
+// tolerates partial reads from |bio| and returns one on success or zero if a
+// read fails before |len| bytes are read. On failure, it additionally sets
+// |*out_eof_on_first_read| to whether the error was due to |bio| returning zero
+// on the first read. |out_eof_on_first_read| may be NULL to discard the value.
+static int bio_read_full(BIO *bio, uint8_t *out, int *out_eof_on_first_read,
+                         size_t len) {
+  int first_read = 1;
+  while (len > 0) {
+    int todo = len <= INT_MAX ? (int)len : INT_MAX;
+    int ret = BIO_read(bio, out, todo);
+    if (ret <= 0) {
+      if (out_eof_on_first_read != NULL) {
+        *out_eof_on_first_read = first_read && ret == 0;
+      }
+      return 0;
+    }
+    out += ret;
+    len -= (size_t)ret;
+    first_read = 0;
+  }
+
+  return 1;
+}
+
+// For compatibility with existing |d2i_*_bio| callers, |BIO_read_asn1| uses
+// |ERR_LIB_ASN1| errors.
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ASN1_R_DECODE_ERROR)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ASN1_R_HEADER_TOO_LONG)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ASN1_R_NOT_ENOUGH_DATA)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ASN1_R_TOO_LONG)
+
+int BIO_read_asn1(BIO *bio, uint8_t **out, size_t *out_len, size_t max_len) {
+  uint8_t header[6];
+
+  static const size_t kInitialHeaderLen = 2;
+  int eof_on_first_read;
+  if (!bio_read_full(bio, header, &eof_on_first_read, kInitialHeaderLen)) {
+    if (eof_on_first_read) {
+      // Historically, OpenSSL returned |ASN1_R_HEADER_TOO_LONG| when
+      // |d2i_*_bio| could not read anything. CPython conditions on this to
+      // determine if |bio| was empty.
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_HEADER_TOO_LONG);
+    } else {
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_NOT_ENOUGH_DATA);
+    }
+    return 0;
+  }
+
+  const uint8_t tag = header[0];
+  const uint8_t length_byte = header[1];
+
+  if ((tag & 0x1f) == 0x1f) {
+    // Long form tags are not supported.
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+    return 0;
+  }
+
+  size_t len, header_len;
+  if ((length_byte & 0x80) == 0) {
+    // Short form length.
+    len = length_byte;
+    header_len = kInitialHeaderLen;
+  } else {
+    const size_t num_bytes = length_byte & 0x7f;
+
+    if ((tag & 0x20 /* constructed */) != 0 && num_bytes == 0) {
+      // indefinite length.
+      if (!bio_read_all(bio, out, out_len, header, kInitialHeaderLen,
+                        max_len)) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_NOT_ENOUGH_DATA);
+        return 0;
+      }
+      return 1;
+    }
+
+    if (num_bytes == 0 || num_bytes > 4) {
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+      return 0;
+    }
+
+    if (!bio_read_full(bio, header + kInitialHeaderLen, NULL, num_bytes)) {
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_NOT_ENOUGH_DATA);
+      return 0;
+    }
+    header_len = kInitialHeaderLen + num_bytes;
+
+    uint32_t len32 = 0;
+    for (unsigned i = 0; i < num_bytes; i++) {
+      len32 <<= 8;
+      len32 |= header[kInitialHeaderLen + i];
+    }
+
+    if (len32 < 128) {
+      // Length should have used short-form encoding.
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+      return 0;
+    }
+
+    if ((len32 >> ((num_bytes-1)*8)) == 0) {
+      // Length should have been at least one byte shorter.
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+      return 0;
+    }
+
+    len = len32;
+  }
+
+  if (len + header_len < len ||
+      len + header_len > max_len ||
+      len > INT_MAX) {
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_TOO_LONG);
+    return 0;
+  }
+  len += header_len;
+  *out_len = len;
+
+  *out = OPENSSL_malloc(len);
+  if (*out == NULL) {
+    OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+    return 0;
+  }
+  OPENSSL_memcpy(*out, header, header_len);
+  if (!bio_read_full(bio, (*out) + header_len, NULL, len - header_len)) {
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_NOT_ENOUGH_DATA);
+    OPENSSL_free(*out);
+    return 0;
+  }
+
+  return 1;
+}
+
+void BIO_set_retry_special(BIO *bio) {
+  bio->flags |= BIO_FLAGS_READ | BIO_FLAGS_IO_SPECIAL;
+}
+
+int BIO_set_write_buffer_size(BIO *bio, int buffer_size) { return 0; }
+
+static struct CRYPTO_STATIC_MUTEX g_index_lock = CRYPTO_STATIC_MUTEX_INIT;
+static int g_index = BIO_TYPE_START;
+
+int BIO_get_new_index(void) {
+  CRYPTO_STATIC_MUTEX_lock_write(&g_index_lock);
+  // If |g_index| exceeds 255, it will collide with the flags bits.
+  int ret = g_index > 255 ? -1 : g_index++;
+  CRYPTO_STATIC_MUTEX_unlock_write(&g_index_lock);
+  return ret;
+}
+
+BIO_METHOD *BIO_meth_new(int type, const char *name) {
+  BIO_METHOD *method = OPENSSL_malloc(sizeof(BIO_METHOD));
+  if (method == NULL) {
+    return NULL;
+  }
+  OPENSSL_memset(method, 0, sizeof(BIO_METHOD));
+  method->type = type;
+  method->name = name;
+  return method;
+}
+
+void BIO_meth_free(BIO_METHOD *method) {
+  OPENSSL_free(method);
+}
+
+int BIO_meth_set_create(BIO_METHOD *method,
+                        int (*create)(BIO *)) {
+  method->create = create;
+  return 1;
+}
+
+int BIO_meth_set_destroy(BIO_METHOD *method,
+                         int (*destroy)(BIO *)) {
+  method->destroy = destroy;
+  return 1;
+}
+
+int BIO_meth_set_write(BIO_METHOD *method,
+                       int (*write)(BIO *, const char *, int)) {
+  method->bwrite = write;
+  return 1;
+}
+
+int BIO_meth_set_read(BIO_METHOD *method,
+                      int (*read)(BIO *, char *, int)) {
+  method->bread = read;
+  return 1;
+}
+
+int BIO_meth_set_gets(BIO_METHOD *method,
+                      int (*gets)(BIO *, char *, int)) {
+  method->bgets = gets;
+  return 1;
+}
+
+int BIO_meth_set_ctrl(BIO_METHOD *method,
+                      long (*ctrl)(BIO *, int, long, void *)) {
+  method->ctrl = ctrl;
+  return 1;
+}
+
+void BIO_set_data(BIO *bio, void *ptr) { bio->ptr = ptr; }
+
+void *BIO_get_data(BIO *bio) { return bio->ptr; }
+
+void BIO_set_init(BIO *bio, int init) { bio->init = init; }
+
+int BIO_get_init(BIO *bio) { return bio->init; }
+
+void BIO_set_shutdown(BIO *bio, int shutdown) { bio->shutdown = shutdown; }
+
+int BIO_get_shutdown(BIO *bio) { return bio->shutdown; }
+
+int BIO_meth_set_puts(BIO_METHOD *method, int (*puts)(BIO *, const char *)) {
+  // Ignore the parameter. We implement |BIO_puts| using |BIO_write|.
+  return 1;
+}

Pods/BoringSSL-GRPC/src/crypto/bio/bio.c.grpc_back

@@ -0,0 +1,700 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/bio.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/asn1.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+#include <openssl/thread.h>
+
+#include "../internal.h"
+
+
+BIO *BIO_new(const BIO_METHOD *method) {
+  BIO *ret = OPENSSL_malloc(sizeof(BIO));
+  if (ret == NULL) {
+    OPENSSL_PUT_ERROR(BIO, ERR_R_MALLOC_FAILURE);
+    return NULL;
+  }
+
+  OPENSSL_memset(ret, 0, sizeof(BIO));
+  ret->method = method;
+  ret->shutdown = 1;
+  ret->references = 1;
+
+  if (method->create != NULL && !method->create(ret)) {
+    OPENSSL_free(ret);
+    return NULL;
+  }
+
+  return ret;
+}
+
+int BIO_free(BIO *bio) {
+  BIO *next_bio;
+
+  for (; bio != NULL; bio = next_bio) {
+    if (!CRYPTO_refcount_dec_and_test_zero(&bio->references)) {
+      return 0;
+    }
+
+    next_bio = BIO_pop(bio);
+
+    if (bio->method != NULL && bio->method->destroy != NULL) {
+      bio->method->destroy(bio);
+    }
+
+    OPENSSL_free(bio);
+  }
+  return 1;
+}
+
+int BIO_up_ref(BIO *bio) {
+  CRYPTO_refcount_inc(&bio->references);
+  return 1;
+}
+
+void BIO_vfree(BIO *bio) {
+  BIO_free(bio);
+}
+
+void BIO_free_all(BIO *bio) {
+  BIO_free(bio);
+}
+
+int BIO_read(BIO *bio, void *buf, int len) {
+  if (bio == NULL || bio->method == NULL || bio->method->bread == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return -2;
+  }
+  if (!bio->init) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNINITIALIZED);
+    return -2;
+  }
+  if (len <= 0) {
+    return 0;
+  }
+  int ret = bio->method->bread(bio, buf, len);
+  if (ret > 0) {
+    bio->num_read += ret;
+  }
+  return ret;
+}
+
+int BIO_gets(BIO *bio, char *buf, int len) {
+  if (bio == NULL || bio->method == NULL || bio->method->bgets == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return -2;
+  }
+  if (!bio->init) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNINITIALIZED);
+    return -2;
+  }
+  if (len <= 0) {
+    return 0;
+  }
+  int ret = bio->method->bgets(bio, buf, len);
+  if (ret > 0) {
+    bio->num_read += ret;
+  }
+  return ret;
+}
+
+int BIO_write(BIO *bio, const void *in, int inl) {
+  if (bio == NULL || bio->method == NULL || bio->method->bwrite == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return -2;
+  }
+  if (!bio->init) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNINITIALIZED);
+    return -2;
+  }
+  if (inl <= 0) {
+    return 0;
+  }
+  int ret = bio->method->bwrite(bio, in, inl);
+  if (ret > 0) {
+    bio->num_write += ret;
+  }
+  return ret;
+}
+
+int BIO_write_all(BIO *bio, const void *data, size_t len) {
+  const uint8_t *data_u8 = data;
+  while (len > 0) {
+    int ret = BIO_write(bio, data_u8, len > INT_MAX ? INT_MAX : (int)len);
+    if (ret <= 0) {
+      return 0;
+    }
+    data_u8 += ret;
+    len -= ret;
+  }
+  return 1;
+}
+
+int BIO_puts(BIO *bio, const char *in) {
+  return BIO_write(bio, in, strlen(in));
+}
+
+int BIO_flush(BIO *bio) {
+  return BIO_ctrl(bio, BIO_CTRL_FLUSH, 0, NULL);
+}
+
+long BIO_ctrl(BIO *bio, int cmd, long larg, void *parg) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->method == NULL || bio->method->ctrl == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return -2;
+  }
+
+  return bio->method->ctrl(bio, cmd, larg, parg);
+}
+
+char *BIO_ptr_ctrl(BIO *b, int cmd, long larg) {
+  char *p = NULL;
+
+  if (BIO_ctrl(b, cmd, larg, (void *)&p) <= 0) {
+    return NULL;
+  }
+
+  return p;
+}
+
+long BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg) {
+  int i = iarg;
+
+  return BIO_ctrl(b, cmd, larg, (void *)&i);
+}
+
+int BIO_reset(BIO *bio) {
+  return BIO_ctrl(bio, BIO_CTRL_RESET, 0, NULL);
+}
+
+int BIO_eof(BIO *bio) {
+  return BIO_ctrl(bio, BIO_CTRL_EOF, 0, NULL);
+}
+
+void BIO_set_flags(BIO *bio, int flags) {
+  bio->flags |= flags;
+}
+
+int BIO_test_flags(const BIO *bio, int flags) {
+  return bio->flags & flags;
+}
+
+int BIO_should_read(const BIO *bio) {
+  return BIO_test_flags(bio, BIO_FLAGS_READ);
+}
+
+int BIO_should_write(const BIO *bio) {
+  return BIO_test_flags(bio, BIO_FLAGS_WRITE);
+}
+
+int BIO_should_retry(const BIO *bio) {
+  return BIO_test_flags(bio, BIO_FLAGS_SHOULD_RETRY);
+}
+
+int BIO_should_io_special(const BIO *bio) {
+  return BIO_test_flags(bio, BIO_FLAGS_IO_SPECIAL);
+}
+
+int BIO_get_retry_reason(const BIO *bio) { return bio->retry_reason; }
+
+void BIO_clear_flags(BIO *bio, int flags) {
+  bio->flags &= ~flags;
+}
+
+void BIO_set_retry_read(BIO *bio) {
+  bio->flags |= BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY;
+}
+
+void BIO_set_retry_write(BIO *bio) {
+  bio->flags |= BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY;
+}
+
+static const int kRetryFlags = BIO_FLAGS_RWS | BIO_FLAGS_SHOULD_RETRY;
+
+int BIO_get_retry_flags(BIO *bio) {
+  return bio->flags & kRetryFlags;
+}
+
+void BIO_clear_retry_flags(BIO *bio) {
+  bio->flags &= ~kRetryFlags;
+  bio->retry_reason = 0;
+}
+
+int BIO_method_type(const BIO *bio) { return bio->method->type; }
+
+void BIO_copy_next_retry(BIO *bio) {
+  BIO_clear_retry_flags(bio);
+  BIO_set_flags(bio, BIO_get_retry_flags(bio->next_bio));
+  bio->retry_reason = bio->next_bio->retry_reason;
+}
+
+long BIO_callback_ctrl(BIO *bio, int cmd, bio_info_cb fp) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->method == NULL || bio->method->callback_ctrl == NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD);
+    return 0;
+  }
+
+  return bio->method->callback_ctrl(bio, cmd, fp);
+}
+
+size_t BIO_pending(const BIO *bio) {
+  const long r = BIO_ctrl((BIO *) bio, BIO_CTRL_PENDING, 0, NULL);
+  assert(r >= 0);
+
+  if (r < 0) {
+    return 0;
+  }
+  return r;
+}
+
+size_t BIO_ctrl_pending(const BIO *bio) {
+  return BIO_pending(bio);
+}
+
+size_t BIO_wpending(const BIO *bio) {
+  const long r = BIO_ctrl((BIO *) bio, BIO_CTRL_WPENDING, 0, NULL);
+  assert(r >= 0);
+
+  if (r < 0) {
+    return 0;
+  }
+  return r;
+}
+
+int BIO_set_close(BIO *bio, int close_flag) {
+  return BIO_ctrl(bio, BIO_CTRL_SET_CLOSE, close_flag, NULL);
+}
+
+OPENSSL_EXPORT size_t BIO_number_read(const BIO *bio) {
+  return bio->num_read;
+}
+
+OPENSSL_EXPORT size_t BIO_number_written(const BIO *bio) {
+  return bio->num_write;
+}
+
+BIO *BIO_push(BIO *bio, BIO *appended_bio) {
+  BIO *last_bio;
+
+  if (bio == NULL) {
+    return bio;
+  }
+
+  last_bio = bio;
+  while (last_bio->next_bio != NULL) {
+    last_bio = last_bio->next_bio;
+  }
+
+  last_bio->next_bio = appended_bio;
+  return bio;
+}
+
+BIO *BIO_pop(BIO *bio) {
+  BIO *ret;
+
+  if (bio == NULL) {
+    return NULL;
+  }
+  ret = bio->next_bio;
+  bio->next_bio = NULL;
+  return ret;
+}
+
+BIO *BIO_next(BIO *bio) {
+  if (!bio) {
+    return NULL;
+  }
+  return bio->next_bio;
+}
+
+BIO *BIO_find_type(BIO *bio, int type) {
+  int method_type, mask;
+
+  if (!bio) {
+    return NULL;
+  }
+  mask = type & 0xff;
+
+  do {
+    if (bio->method != NULL) {
+      method_type = bio->method->type;
+
+      if (!mask) {
+        if (method_type & type) {
+          return bio;
+        }
+      } else if (method_type == type) {
+        return bio;
+      }
+    }
+    bio = bio->next_bio;
+  } while (bio != NULL);
+
+  return NULL;
+}
+
+int BIO_indent(BIO *bio, unsigned indent, unsigned max_indent) {
+  if (indent > max_indent) {
+    indent = max_indent;
+  }
+
+  while (indent--) {
+    if (BIO_puts(bio, " ") != 1) {
+      return 0;
+    }
+  }
+  return 1;
+}
+
+static int print_bio(const char *str, size_t len, void *bio) {
+  return BIO_write((BIO *)bio, str, len);
+}
+
+void ERR_print_errors(BIO *bio) {
+  ERR_print_errors_cb(print_bio, bio);
+}
+
+// bio_read_all reads everything from |bio| and prepends |prefix| to it. On
+// success, |*out| is set to an allocated buffer (which should be freed with
+// |OPENSSL_free|), |*out_len| is set to its length and one is returned. The
+// buffer will contain |prefix| followed by the contents of |bio|. On failure,
+// zero is returned.
+//
+// The function will fail if the size of the output would equal or exceed
+// |max_len|.
+static int bio_read_all(BIO *bio, uint8_t **out, size_t *out_len,
+                        const uint8_t *prefix, size_t prefix_len,
+                        size_t max_len) {
+  static const size_t kChunkSize = 4096;
+
+  size_t len = prefix_len + kChunkSize;
+  if (len > max_len) {
+    len = max_len;
+  }
+  if (len < prefix_len) {
+    return 0;
+  }
+  *out = OPENSSL_malloc(len);
+  if (*out == NULL) {
+    return 0;
+  }
+  OPENSSL_memcpy(*out, prefix, prefix_len);
+  size_t done = prefix_len;
+
+  for (;;) {
+    if (done == len) {
+      OPENSSL_free(*out);
+      return 0;
+    }
+    const size_t todo = len - done;
+    assert(todo < INT_MAX);
+    const int n = BIO_read(bio, *out + done, todo);
+    if (n == 0) {
+      *out_len = done;
+      return 1;
+    } else if (n == -1) {
+      OPENSSL_free(*out);
+      return 0;
+    }
+
+    done += n;
+    if (len < max_len && len - done < kChunkSize / 2) {
+      len += kChunkSize;
+      if (len < kChunkSize || len > max_len) {
+        len = max_len;
+      }
+      uint8_t *new_buf = OPENSSL_realloc(*out, len);
+      if (new_buf == NULL) {
+        OPENSSL_free(*out);
+        return 0;
+      }
+      *out = new_buf;
+    }
+  }
+}
+
+// bio_read_full reads |len| bytes |bio| and writes them into |out|. It
+// tolerates partial reads from |bio| and returns one on success or zero if a
+// read fails before |len| bytes are read. On failure, it additionally sets
+// |*out_eof_on_first_read| to whether the error was due to |bio| returning zero
+// on the first read. |out_eof_on_first_read| may be NULL to discard the value.
+static int bio_read_full(BIO *bio, uint8_t *out, int *out_eof_on_first_read,
+                         size_t len) {
+  int first_read = 1;
+  while (len > 0) {
+    int todo = len <= INT_MAX ? (int)len : INT_MAX;
+    int ret = BIO_read(bio, out, todo);
+    if (ret <= 0) {
+      if (out_eof_on_first_read != NULL) {
+        *out_eof_on_first_read = first_read && ret == 0;
+      }
+      return 0;
+    }
+    out += ret;
+    len -= (size_t)ret;
+    first_read = 0;
+  }
+
+  return 1;
+}
+
+// For compatibility with existing |d2i_*_bio| callers, |BIO_read_asn1| uses
+// |ERR_LIB_ASN1| errors.
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ASN1_R_DECODE_ERROR)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ASN1_R_HEADER_TOO_LONG)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ASN1_R_NOT_ENOUGH_DATA)
+OPENSSL_DECLARE_ERROR_REASON(ASN1, ASN1_R_TOO_LONG)
+
+int BIO_read_asn1(BIO *bio, uint8_t **out, size_t *out_len, size_t max_len) {
+  uint8_t header[6];
+
+  static const size_t kInitialHeaderLen = 2;
+  int eof_on_first_read;
+  if (!bio_read_full(bio, header, &eof_on_first_read, kInitialHeaderLen)) {
+    if (eof_on_first_read) {
+      // Historically, OpenSSL returned |ASN1_R_HEADER_TOO_LONG| when
+      // |d2i_*_bio| could not read anything. CPython conditions on this to
+      // determine if |bio| was empty.
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_HEADER_TOO_LONG);
+    } else {
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_NOT_ENOUGH_DATA);
+    }
+    return 0;
+  }
+
+  const uint8_t tag = header[0];
+  const uint8_t length_byte = header[1];
+
+  if ((tag & 0x1f) == 0x1f) {
+    // Long form tags are not supported.
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+    return 0;
+  }
+
+  size_t len, header_len;
+  if ((length_byte & 0x80) == 0) {
+    // Short form length.
+    len = length_byte;
+    header_len = kInitialHeaderLen;
+  } else {
+    const size_t num_bytes = length_byte & 0x7f;
+
+    if ((tag & 0x20 /* constructed */) != 0 && num_bytes == 0) {
+      // indefinite length.
+      if (!bio_read_all(bio, out, out_len, header, kInitialHeaderLen,
+                        max_len)) {
+        OPENSSL_PUT_ERROR(ASN1, ASN1_R_NOT_ENOUGH_DATA);
+        return 0;
+      }
+      return 1;
+    }
+
+    if (num_bytes == 0 || num_bytes > 4) {
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+      return 0;
+    }
+
+    if (!bio_read_full(bio, header + kInitialHeaderLen, NULL, num_bytes)) {
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_NOT_ENOUGH_DATA);
+      return 0;
+    }
+    header_len = kInitialHeaderLen + num_bytes;
+
+    uint32_t len32 = 0;
+    for (unsigned i = 0; i < num_bytes; i++) {
+      len32 <<= 8;
+      len32 |= header[kInitialHeaderLen + i];
+    }
+
+    if (len32 < 128) {
+      // Length should have used short-form encoding.
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+      return 0;
+    }
+
+    if ((len32 >> ((num_bytes-1)*8)) == 0) {
+      // Length should have been at least one byte shorter.
+      OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
+      return 0;
+    }
+
+    len = len32;
+  }
+
+  if (len + header_len < len ||
+      len + header_len > max_len ||
+      len > INT_MAX) {
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_TOO_LONG);
+    return 0;
+  }
+  len += header_len;
+  *out_len = len;
+
+  *out = OPENSSL_malloc(len);
+  if (*out == NULL) {
+    OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
+    return 0;
+  }
+  OPENSSL_memcpy(*out, header, header_len);
+  if (!bio_read_full(bio, (*out) + header_len, NULL, len - header_len)) {
+    OPENSSL_PUT_ERROR(ASN1, ASN1_R_NOT_ENOUGH_DATA);
+    OPENSSL_free(*out);
+    return 0;
+  }
+
+  return 1;
+}
+
+void BIO_set_retry_special(BIO *bio) {
+  bio->flags |= BIO_FLAGS_READ | BIO_FLAGS_IO_SPECIAL;
+}
+
+int BIO_set_write_buffer_size(BIO *bio, int buffer_size) { return 0; }
+
+static struct CRYPTO_STATIC_MUTEX g_index_lock = CRYPTO_STATIC_MUTEX_INIT;
+static int g_index = BIO_TYPE_START;
+
+int BIO_get_new_index(void) {
+  CRYPTO_STATIC_MUTEX_lock_write(&g_index_lock);
+  // If |g_index| exceeds 255, it will collide with the flags bits.
+  int ret = g_index > 255 ? -1 : g_index++;
+  CRYPTO_STATIC_MUTEX_unlock_write(&g_index_lock);
+  return ret;
+}
+
+BIO_METHOD *BIO_meth_new(int type, const char *name) {
+  BIO_METHOD *method = OPENSSL_malloc(sizeof(BIO_METHOD));
+  if (method == NULL) {
+    return NULL;
+  }
+  OPENSSL_memset(method, 0, sizeof(BIO_METHOD));
+  method->type = type;
+  method->name = name;
+  return method;
+}
+
+void BIO_meth_free(BIO_METHOD *method) {
+  OPENSSL_free(method);
+}
+
+int BIO_meth_set_create(BIO_METHOD *method,
+                        int (*create)(BIO *)) {
+  method->create = create;
+  return 1;
+}
+
+int BIO_meth_set_destroy(BIO_METHOD *method,
+                         int (*destroy)(BIO *)) {
+  method->destroy = destroy;
+  return 1;
+}
+
+int BIO_meth_set_write(BIO_METHOD *method,
+                       int (*write)(BIO *, const char *, int)) {
+  method->bwrite = write;
+  return 1;
+}
+
+int BIO_meth_set_read(BIO_METHOD *method,
+                      int (*read)(BIO *, char *, int)) {
+  method->bread = read;
+  return 1;
+}
+
+int BIO_meth_set_gets(BIO_METHOD *method,
+                      int (*gets)(BIO *, char *, int)) {
+  method->bgets = gets;
+  return 1;
+}
+
+int BIO_meth_set_ctrl(BIO_METHOD *method,
+                      long (*ctrl)(BIO *, int, long, void *)) {
+  method->ctrl = ctrl;
+  return 1;
+}
+
+void BIO_set_data(BIO *bio, void *ptr) { bio->ptr = ptr; }
+
+void *BIO_get_data(BIO *bio) { return bio->ptr; }
+
+void BIO_set_init(BIO *bio, int init) { bio->init = init; }
+
+int BIO_get_init(BIO *bio) { return bio->init; }
+
+void BIO_set_shutdown(BIO *bio, int shutdown) { bio->shutdown = shutdown; }
+
+int BIO_get_shutdown(BIO *bio) { return bio->shutdown; }
+
+int BIO_meth_set_puts(BIO_METHOD *method, int (*puts)(BIO *, const char *)) {
+  // Ignore the parameter. We implement |BIO_puts| using |BIO_write|.
+  return 1;
+}

Pods/BoringSSL-GRPC/src/crypto/bio/bio_mem.c

@@ -0,0 +1,330 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/bio.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/buf.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "../internal.h"
+
+
+BIO *BIO_new_mem_buf(const void *buf, int len) {
+  BIO *ret;
+  BUF_MEM *b;
+  const size_t size = len < 0 ? strlen((char *)buf) : (size_t)len;
+
+  if (!buf && len != 0) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_NULL_PARAMETER);
+    return NULL;
+  }
+
+  ret = BIO_new(BIO_s_mem());
+  if (ret == NULL) {
+    return NULL;
+  }
+
+  b = (BUF_MEM *)ret->ptr;
+  // BIO_FLAGS_MEM_RDONLY ensures |b->data| is not written to.
+  b->data = (void *)buf;
+  b->length = size;
+  b->max = size;
+
+  ret->flags |= BIO_FLAGS_MEM_RDONLY;
+
+  // |num| is used to store the value that this BIO will return when it runs
+  // out of data. If it's negative then the retry flags will also be set. Since
+  // this is static data, retrying wont help
+  ret->num = 0;
+
+  return ret;
+}
+
+static int mem_new(BIO *bio) {
+  BUF_MEM *b;
+
+  b = BUF_MEM_new();
+  if (b == NULL) {
+    return 0;
+  }
+
+  // |shutdown| is used to store the close flag: whether the BIO has ownership
+  // of the BUF_MEM.
+  bio->shutdown = 1;
+  bio->init = 1;
+  bio->num = -1;
+  bio->ptr = (char *)b;
+
+  return 1;
+}
+
+static int mem_free(BIO *bio) {
+  BUF_MEM *b;
+
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (!bio->shutdown || !bio->init || bio->ptr == NULL) {
+    return 1;
+  }
+
+  b = (BUF_MEM *)bio->ptr;
+  if (bio->flags & BIO_FLAGS_MEM_RDONLY) {
+    b->data = NULL;
+  }
+  BUF_MEM_free(b);
+  bio->ptr = NULL;
+  return 1;
+}
+
+static int mem_read(BIO *bio, char *out, int outl) {
+  int ret;
+  BUF_MEM *b = (BUF_MEM*) bio->ptr;
+
+  BIO_clear_retry_flags(bio);
+  ret = outl;
+  if (b->length < INT_MAX && ret > (int)b->length) {
+    ret = b->length;
+  }
+
+  if (ret > 0) {
+    OPENSSL_memcpy(out, b->data, ret);
+    b->length -= ret;
+    if (bio->flags & BIO_FLAGS_MEM_RDONLY) {
+      b->data += ret;
+    } else {
+      OPENSSL_memmove(b->data, &b->data[ret], b->length);
+    }
+  } else if (b->length == 0) {
+    ret = bio->num;
+    if (ret != 0) {
+      BIO_set_retry_read(bio);
+    }
+  }
+  return ret;
+}
+
+static int mem_write(BIO *bio, const char *in, int inl) {
+  int ret = -1;
+  int blen;
+  BUF_MEM *b;
+
+  b = (BUF_MEM *)bio->ptr;
+
+  if (bio->flags & BIO_FLAGS_MEM_RDONLY) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_WRITE_TO_READ_ONLY_BIO);
+    goto err;
+  }
+
+  BIO_clear_retry_flags(bio);
+  blen = b->length;
+  if (INT_MAX - blen < inl) {
+    goto err;
+  }
+  if (BUF_MEM_grow_clean(b, blen + inl) != ((size_t) blen) + inl) {
+    goto err;
+  }
+  OPENSSL_memcpy(&b->data[blen], in, inl);
+  ret = inl;
+
+err:
+  return ret;
+}
+
+static int mem_gets(BIO *bio, char *buf, int size) {
+  int i, j;
+  char *p;
+  BUF_MEM *b = (BUF_MEM *)bio->ptr;
+
+  BIO_clear_retry_flags(bio);
+  j = b->length;
+  if (size - 1 < j) {
+    j = size - 1;
+  }
+  if (j <= 0) {
+    if (size > 0) {
+      *buf = 0;
+    }
+    return 0;
+  }
+
+  p = b->data;
+  for (i = 0; i < j; i++) {
+    if (p[i] == '\n') {
+      i++;
+      break;
+    }
+  }
+
+  // i is now the max num of bytes to copy, either j or up to and including the
+  // first newline
+
+  i = mem_read(bio, buf, i);
+  if (i > 0) {
+    buf[i] = '\0';
+  }
+  return i;
+}
+
+static long mem_ctrl(BIO *bio, int cmd, long num, void *ptr) {
+  long ret = 1;
+  char **pptr;
+
+  BUF_MEM *b = (BUF_MEM *)bio->ptr;
+
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      if (b->data != NULL) {
+        // For read only case reset to the start again
+        if (bio->flags & BIO_FLAGS_MEM_RDONLY) {
+          b->data -= b->max - b->length;
+          b->length = b->max;
+        } else {
+          OPENSSL_memset(b->data, 0, b->max);
+          b->length = 0;
+        }
+      }
+      break;
+    case BIO_CTRL_EOF:
+      ret = (long)(b->length == 0);
+      break;
+    case BIO_C_SET_BUF_MEM_EOF_RETURN:
+      bio->num = (int)num;
+      break;
+    case BIO_CTRL_INFO:
+      ret = (long)b->length;
+      if (ptr != NULL) {
+        pptr = (char **)ptr;
+        *pptr = (char *)&b->data[0];
+      }
+      break;
+    case BIO_C_SET_BUF_MEM:
+      mem_free(bio);
+      bio->shutdown = (int)num;
+      bio->ptr = ptr;
+      break;
+    case BIO_C_GET_BUF_MEM_PTR:
+      if (ptr != NULL) {
+        pptr = (char **)ptr;
+        *pptr = (char *)b;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = (long)bio->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      bio->shutdown = (int)num;
+      break;
+
+    case BIO_CTRL_WPENDING:
+      ret = 0L;
+      break;
+    case BIO_CTRL_PENDING:
+      ret = (long)b->length;
+      break;
+    case BIO_CTRL_FLUSH:
+      ret = 1;
+      break;
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+static const BIO_METHOD mem_method = {
+    BIO_TYPE_MEM,    "memory buffer",
+    mem_write,       mem_read,
+    NULL /* puts */, mem_gets,
+    mem_ctrl,        mem_new,
+    mem_free,        NULL /* callback_ctrl */,
+};
+
+const BIO_METHOD *BIO_s_mem(void) { return &mem_method; }
+
+int BIO_mem_contents(const BIO *bio, const uint8_t **out_contents,
+                     size_t *out_len) {
+  const BUF_MEM *b;
+  if (bio->method != &mem_method) {
+    return 0;
+  }
+
+  b = (BUF_MEM *)bio->ptr;
+  *out_contents = (uint8_t *)b->data;
+  *out_len = b->length;
+  return 1;
+}
+
+long BIO_get_mem_data(BIO *bio, char **contents) {
+  return BIO_ctrl(bio, BIO_CTRL_INFO, 0, (char *) contents);
+}
+
+int BIO_get_mem_ptr(BIO *bio, BUF_MEM **out) {
+  return BIO_ctrl(bio, BIO_C_GET_BUF_MEM_PTR, 0, (char *) out);
+}
+
+int BIO_set_mem_buf(BIO *bio, BUF_MEM *b, int take_ownership) {
+  return BIO_ctrl(bio, BIO_C_SET_BUF_MEM, take_ownership, (char *) b);
+}
+
+int BIO_set_mem_eof_return(BIO *bio, int eof_value) {
+  return BIO_ctrl(bio, BIO_C_SET_BUF_MEM_EOF_RETURN, eof_value, NULL);
+}

Pods/BoringSSL-GRPC/src/crypto/bio/bio_mem.c.grpc_back

@@ -0,0 +1,330 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/bio.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/buf.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "../internal.h"
+
+
+BIO *BIO_new_mem_buf(const void *buf, int len) {
+  BIO *ret;
+  BUF_MEM *b;
+  const size_t size = len < 0 ? strlen((char *)buf) : (size_t)len;
+
+  if (!buf && len != 0) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_NULL_PARAMETER);
+    return NULL;
+  }
+
+  ret = BIO_new(BIO_s_mem());
+  if (ret == NULL) {
+    return NULL;
+  }
+
+  b = (BUF_MEM *)ret->ptr;
+  // BIO_FLAGS_MEM_RDONLY ensures |b->data| is not written to.
+  b->data = (void *)buf;
+  b->length = size;
+  b->max = size;
+
+  ret->flags |= BIO_FLAGS_MEM_RDONLY;
+
+  // |num| is used to store the value that this BIO will return when it runs
+  // out of data. If it's negative then the retry flags will also be set. Since
+  // this is static data, retrying wont help
+  ret->num = 0;
+
+  return ret;
+}
+
+static int mem_new(BIO *bio) {
+  BUF_MEM *b;
+
+  b = BUF_MEM_new();
+  if (b == NULL) {
+    return 0;
+  }
+
+  // |shutdown| is used to store the close flag: whether the BIO has ownership
+  // of the BUF_MEM.
+  bio->shutdown = 1;
+  bio->init = 1;
+  bio->num = -1;
+  bio->ptr = (char *)b;
+
+  return 1;
+}
+
+static int mem_free(BIO *bio) {
+  BUF_MEM *b;
+
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (!bio->shutdown || !bio->init || bio->ptr == NULL) {
+    return 1;
+  }
+
+  b = (BUF_MEM *)bio->ptr;
+  if (bio->flags & BIO_FLAGS_MEM_RDONLY) {
+    b->data = NULL;
+  }
+  BUF_MEM_free(b);
+  bio->ptr = NULL;
+  return 1;
+}
+
+static int mem_read(BIO *bio, char *out, int outl) {
+  int ret;
+  BUF_MEM *b = (BUF_MEM*) bio->ptr;
+
+  BIO_clear_retry_flags(bio);
+  ret = outl;
+  if (b->length < INT_MAX && ret > (int)b->length) {
+    ret = b->length;
+  }
+
+  if (ret > 0) {
+    OPENSSL_memcpy(out, b->data, ret);
+    b->length -= ret;
+    if (bio->flags & BIO_FLAGS_MEM_RDONLY) {
+      b->data += ret;
+    } else {
+      OPENSSL_memmove(b->data, &b->data[ret], b->length);
+    }
+  } else if (b->length == 0) {
+    ret = bio->num;
+    if (ret != 0) {
+      BIO_set_retry_read(bio);
+    }
+  }
+  return ret;
+}
+
+static int mem_write(BIO *bio, const char *in, int inl) {
+  int ret = -1;
+  int blen;
+  BUF_MEM *b;
+
+  b = (BUF_MEM *)bio->ptr;
+
+  if (bio->flags & BIO_FLAGS_MEM_RDONLY) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_WRITE_TO_READ_ONLY_BIO);
+    goto err;
+  }
+
+  BIO_clear_retry_flags(bio);
+  blen = b->length;
+  if (INT_MAX - blen < inl) {
+    goto err;
+  }
+  if (BUF_MEM_grow_clean(b, blen + inl) != ((size_t) blen) + inl) {
+    goto err;
+  }
+  OPENSSL_memcpy(&b->data[blen], in, inl);
+  ret = inl;
+
+err:
+  return ret;
+}
+
+static int mem_gets(BIO *bio, char *buf, int size) {
+  int i, j;
+  char *p;
+  BUF_MEM *b = (BUF_MEM *)bio->ptr;
+
+  BIO_clear_retry_flags(bio);
+  j = b->length;
+  if (size - 1 < j) {
+    j = size - 1;
+  }
+  if (j <= 0) {
+    if (size > 0) {
+      *buf = 0;
+    }
+    return 0;
+  }
+
+  p = b->data;
+  for (i = 0; i < j; i++) {
+    if (p[i] == '\n') {
+      i++;
+      break;
+    }
+  }
+
+  // i is now the max num of bytes to copy, either j or up to and including the
+  // first newline
+
+  i = mem_read(bio, buf, i);
+  if (i > 0) {
+    buf[i] = '\0';
+  }
+  return i;
+}
+
+static long mem_ctrl(BIO *bio, int cmd, long num, void *ptr) {
+  long ret = 1;
+  char **pptr;
+
+  BUF_MEM *b = (BUF_MEM *)bio->ptr;
+
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      if (b->data != NULL) {
+        // For read only case reset to the start again
+        if (bio->flags & BIO_FLAGS_MEM_RDONLY) {
+          b->data -= b->max - b->length;
+          b->length = b->max;
+        } else {
+          OPENSSL_memset(b->data, 0, b->max);
+          b->length = 0;
+        }
+      }
+      break;
+    case BIO_CTRL_EOF:
+      ret = (long)(b->length == 0);
+      break;
+    case BIO_C_SET_BUF_MEM_EOF_RETURN:
+      bio->num = (int)num;
+      break;
+    case BIO_CTRL_INFO:
+      ret = (long)b->length;
+      if (ptr != NULL) {
+        pptr = (char **)ptr;
+        *pptr = (char *)&b->data[0];
+      }
+      break;
+    case BIO_C_SET_BUF_MEM:
+      mem_free(bio);
+      bio->shutdown = (int)num;
+      bio->ptr = ptr;
+      break;
+    case BIO_C_GET_BUF_MEM_PTR:
+      if (ptr != NULL) {
+        pptr = (char **)ptr;
+        *pptr = (char *)b;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = (long)bio->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      bio->shutdown = (int)num;
+      break;
+
+    case BIO_CTRL_WPENDING:
+      ret = 0L;
+      break;
+    case BIO_CTRL_PENDING:
+      ret = (long)b->length;
+      break;
+    case BIO_CTRL_FLUSH:
+      ret = 1;
+      break;
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+static const BIO_METHOD mem_method = {
+    BIO_TYPE_MEM,    "memory buffer",
+    mem_write,       mem_read,
+    NULL /* puts */, mem_gets,
+    mem_ctrl,        mem_new,
+    mem_free,        NULL /* callback_ctrl */,
+};
+
+const BIO_METHOD *BIO_s_mem(void) { return &mem_method; }
+
+int BIO_mem_contents(const BIO *bio, const uint8_t **out_contents,
+                     size_t *out_len) {
+  const BUF_MEM *b;
+  if (bio->method != &mem_method) {
+    return 0;
+  }
+
+  b = (BUF_MEM *)bio->ptr;
+  *out_contents = (uint8_t *)b->data;
+  *out_len = b->length;
+  return 1;
+}
+
+long BIO_get_mem_data(BIO *bio, char **contents) {
+  return BIO_ctrl(bio, BIO_CTRL_INFO, 0, (char *) contents);
+}
+
+int BIO_get_mem_ptr(BIO *bio, BUF_MEM **out) {
+  return BIO_ctrl(bio, BIO_C_GET_BUF_MEM_PTR, 0, (char *) out);
+}
+
+int BIO_set_mem_buf(BIO *bio, BUF_MEM *b, int take_ownership) {
+  return BIO_ctrl(bio, BIO_C_SET_BUF_MEM, take_ownership, (char *) b);
+}
+
+int BIO_set_mem_eof_return(BIO *bio, int eof_value) {
+  return BIO_ctrl(bio, BIO_C_SET_BUF_MEM_EOF_RETURN, eof_value, NULL);
+}

Pods/BoringSSL-GRPC/src/crypto/bio/connect.c

@@ -0,0 +1,545 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/bio.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#else
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <winsock2.h>
+#include <ws2tcpip.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+#endif
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "internal.h"
+#include "../internal.h"
+
+
+enum {
+  BIO_CONN_S_BEFORE,
+  BIO_CONN_S_BLOCKED_CONNECT,
+  BIO_CONN_S_OK,
+};
+
+typedef struct bio_connect_st {
+  int state;
+
+  char *param_hostname;
+  char *param_port;
+  int nbio;
+
+  unsigned short port;
+
+  struct sockaddr_storage them;
+  socklen_t them_length;
+
+  // the file descriptor is kept in bio->num in order to match the socket
+  // BIO.
+
+  // info_callback is called when the connection is initially made
+  // callback(BIO,state,ret);  The callback should return 'ret', state is for
+  // compatibility with the SSL info_callback.
+  int (*info_callback)(const BIO *bio, int state, int ret);
+} BIO_CONNECT;
+
+#if !defined(OPENSSL_WINDOWS)
+static int closesocket(int sock) {
+  return close(sock);
+}
+#endif
+
+// split_host_and_port sets |*out_host| and |*out_port| to the host and port
+// parsed from |name|. It returns one on success or zero on error. Even when
+// successful, |*out_port| may be NULL on return if no port was specified.
+static int split_host_and_port(char **out_host, char **out_port, const char *name) {
+  const char *host, *port = NULL;
+  size_t host_len = 0;
+
+  *out_host = NULL;
+  *out_port = NULL;
+
+  if (name[0] == '[') {  // bracketed IPv6 address
+    const char *close = strchr(name, ']');
+    if (close == NULL) {
+      return 0;
+    }
+    host = name + 1;
+    host_len = close - host;
+    if (close[1] == ':') {  // [IP]:port
+      port = close + 2;
+    } else if (close[1] != 0) {
+      return 0;
+    }
+  } else {
+    const char *colon = strchr(name, ':');
+    if (colon == NULL || strchr(colon + 1, ':') != NULL) {  // IPv6 address
+      host = name;
+      host_len = strlen(name);
+    } else {  // host:port
+      host = name;
+      host_len = colon - name;
+      port = colon + 1;
+    }
+  }
+
+  *out_host = OPENSSL_strndup(host, host_len);
+  if (*out_host == NULL) {
+    return 0;
+  }
+  if (port == NULL) {
+    *out_port = NULL;
+    return 1;
+  }
+  *out_port = OPENSSL_strdup(port);
+  if (*out_port == NULL) {
+    OPENSSL_free(*out_host);
+    *out_host = NULL;
+    return 0;
+  }
+  return 1;
+}
+
+static int conn_state(BIO *bio, BIO_CONNECT *c) {
+  int ret = -1, i;
+  int (*cb)(const BIO *, int, int) = NULL;
+
+  if (c->info_callback != NULL) {
+    cb = c->info_callback;
+  }
+
+  for (;;) {
+    switch (c->state) {
+      case BIO_CONN_S_BEFORE:
+        // If there's a hostname and a port, assume that both are
+        // exactly what they say. If there is only a hostname, try
+        // (just once) to split it into a hostname and port.
+
+        if (c->param_hostname == NULL) {
+          OPENSSL_PUT_ERROR(BIO, BIO_R_NO_HOSTNAME_SPECIFIED);
+          goto exit_loop;
+        }
+
+        if (c->param_port == NULL) {
+          char *host, *port;
+          if (!split_host_and_port(&host, &port, c->param_hostname) ||
+              port == NULL) {
+            OPENSSL_free(host);
+            OPENSSL_free(port);
+            OPENSSL_PUT_ERROR(BIO, BIO_R_NO_PORT_SPECIFIED);
+            ERR_add_error_data(2, "host=", c->param_hostname);
+            goto exit_loop;
+          }
+
+          OPENSSL_free(c->param_port);
+          c->param_port = port;
+          OPENSSL_free(c->param_hostname);
+          c->param_hostname = host;
+        }
+
+        if (!bio_ip_and_port_to_socket_and_addr(
+                &bio->num, &c->them, &c->them_length, c->param_hostname,
+                c->param_port)) {
+          OPENSSL_PUT_ERROR(BIO, BIO_R_UNABLE_TO_CREATE_SOCKET);
+          ERR_add_error_data(4, "host=", c->param_hostname, ":", c->param_port);
+          goto exit_loop;
+        }
+
+        if (c->nbio) {
+          if (!bio_socket_nbio(bio->num, 1)) {
+            OPENSSL_PUT_ERROR(BIO, BIO_R_ERROR_SETTING_NBIO);
+            ERR_add_error_data(4, "host=", c->param_hostname, ":",
+                               c->param_port);
+            goto exit_loop;
+          }
+        }
+
+        i = 1;
+        ret = setsockopt(bio->num, SOL_SOCKET, SO_KEEPALIVE, (char *)&i,
+                         sizeof(i));
+        if (ret < 0) {
+          OPENSSL_PUT_SYSTEM_ERROR();
+          OPENSSL_PUT_ERROR(BIO, BIO_R_KEEPALIVE);
+          ERR_add_error_data(4, "host=", c->param_hostname, ":", c->param_port);
+          goto exit_loop;
+        }
+
+        BIO_clear_retry_flags(bio);
+        ret = connect(bio->num, (struct sockaddr*) &c->them, c->them_length);
+        if (ret < 0) {
+          if (bio_fd_should_retry(ret)) {
+            BIO_set_flags(bio, (BIO_FLAGS_IO_SPECIAL | BIO_FLAGS_SHOULD_RETRY));
+            c->state = BIO_CONN_S_BLOCKED_CONNECT;
+            bio->retry_reason = BIO_RR_CONNECT;
+          } else {
+            OPENSSL_PUT_SYSTEM_ERROR();
+            OPENSSL_PUT_ERROR(BIO, BIO_R_CONNECT_ERROR);
+            ERR_add_error_data(4, "host=", c->param_hostname, ":",
+                               c->param_port);
+          }
+          goto exit_loop;
+        } else {
+          c->state = BIO_CONN_S_OK;
+        }
+        break;
+
+      case BIO_CONN_S_BLOCKED_CONNECT:
+        i = bio_sock_error(bio->num);
+        if (i) {
+          if (bio_fd_should_retry(ret)) {
+            BIO_set_flags(bio, (BIO_FLAGS_IO_SPECIAL | BIO_FLAGS_SHOULD_RETRY));
+            c->state = BIO_CONN_S_BLOCKED_CONNECT;
+            bio->retry_reason = BIO_RR_CONNECT;
+            ret = -1;
+          } else {
+            BIO_clear_retry_flags(bio);
+            OPENSSL_PUT_SYSTEM_ERROR();
+            OPENSSL_PUT_ERROR(BIO, BIO_R_NBIO_CONNECT_ERROR);
+            ERR_add_error_data(4, "host=", c->param_hostname, ":", c->param_port);
+            ret = 0;
+          }
+          goto exit_loop;
+        } else {
+          c->state = BIO_CONN_S_OK;
+        }
+        break;
+
+      case BIO_CONN_S_OK:
+        ret = 1;
+        goto exit_loop;
+      default:
+        assert(0);
+        goto exit_loop;
+    }
+
+    if (cb != NULL) {
+      ret = cb((BIO *)bio, c->state, ret);
+      if (ret == 0) {
+        goto end;
+      }
+    }
+  }
+
+exit_loop:
+  if (cb != NULL) {
+    ret = cb((BIO *)bio, c->state, ret);
+  }
+
+end:
+  return ret;
+}
+
+static BIO_CONNECT *BIO_CONNECT_new(void) {
+  BIO_CONNECT *ret = OPENSSL_malloc(sizeof(BIO_CONNECT));
+
+  if (ret == NULL) {
+    return NULL;
+  }
+  OPENSSL_memset(ret, 0, sizeof(BIO_CONNECT));
+
+  ret->state = BIO_CONN_S_BEFORE;
+  return ret;
+}
+
+static void BIO_CONNECT_free(BIO_CONNECT *c) {
+  if (c == NULL) {
+    return;
+  }
+
+  OPENSSL_free(c->param_hostname);
+  OPENSSL_free(c->param_port);
+  OPENSSL_free(c);
+}
+
+static int conn_new(BIO *bio) {
+  bio->init = 0;
+  bio->num = -1;
+  bio->flags = 0;
+  bio->ptr = (char *)BIO_CONNECT_new();
+  return bio->ptr != NULL;
+}
+
+static void conn_close_socket(BIO *bio) {
+  BIO_CONNECT *c = (BIO_CONNECT *) bio->ptr;
+
+  if (bio->num == -1) {
+    return;
+  }
+
+  // Only do a shutdown if things were established
+  if (c->state == BIO_CONN_S_OK) {
+    shutdown(bio->num, 2);
+  }
+  closesocket(bio->num);
+  bio->num = -1;
+}
+
+static int conn_free(BIO *bio) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->shutdown) {
+    conn_close_socket(bio);
+  }
+
+  BIO_CONNECT_free((BIO_CONNECT*) bio->ptr);
+
+  return 1;
+}
+
+static int conn_read(BIO *bio, char *out, int out_len) {
+  int ret = 0;
+  BIO_CONNECT *data;
+
+  data = (BIO_CONNECT *)bio->ptr;
+  if (data->state != BIO_CONN_S_OK) {
+    ret = conn_state(bio, data);
+    if (ret <= 0) {
+      return ret;
+    }
+  }
+
+  bio_clear_socket_error();
+  ret = recv(bio->num, out, out_len, 0);
+  BIO_clear_retry_flags(bio);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_read(bio);
+    }
+  }
+
+  return ret;
+}
+
+static int conn_write(BIO *bio, const char *in, int in_len) {
+  int ret;
+  BIO_CONNECT *data;
+
+  data = (BIO_CONNECT *)bio->ptr;
+  if (data->state != BIO_CONN_S_OK) {
+    ret = conn_state(bio, data);
+    if (ret <= 0) {
+      return ret;
+    }
+  }
+
+  bio_clear_socket_error();
+  ret = send(bio->num, in, in_len, 0);
+  BIO_clear_retry_flags(bio);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_write(bio);
+    }
+  }
+
+  return ret;
+}
+
+static long conn_ctrl(BIO *bio, int cmd, long num, void *ptr) {
+  int *ip;
+  long ret = 1;
+  BIO_CONNECT *data;
+
+  data = (BIO_CONNECT *)bio->ptr;
+
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      ret = 0;
+      data->state = BIO_CONN_S_BEFORE;
+      conn_close_socket(bio);
+      bio->flags = 0;
+      break;
+    case BIO_C_DO_STATE_MACHINE:
+      // use this one to start the connection
+      if (data->state != BIO_CONN_S_OK) {
+        ret = (long)conn_state(bio, data);
+      } else {
+        ret = 1;
+      }
+      break;
+    case BIO_C_SET_CONNECT:
+      if (ptr != NULL) {
+        bio->init = 1;
+        if (num == 0) {
+          OPENSSL_free(data->param_hostname);
+          data->param_hostname = OPENSSL_strdup(ptr);
+          if (data->param_hostname == NULL) {
+            ret = 0;
+          }
+        } else if (num == 1) {
+          OPENSSL_free(data->param_port);
+          data->param_port = OPENSSL_strdup(ptr);
+          if (data->param_port == NULL) {
+            ret = 0;
+          }
+        } else {
+          ret = 0;
+        }
+      }
+      break;
+    case BIO_C_SET_NBIO:
+      data->nbio = (int)num;
+      break;
+    case BIO_C_GET_FD:
+      if (bio->init) {
+        ip = (int *)ptr;
+        if (ip != NULL) {
+          *ip = bio->num;
+        }
+        ret = bio->num;
+      } else {
+        ret = -1;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = bio->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      bio->shutdown = (int)num;
+      break;
+    case BIO_CTRL_PENDING:
+    case BIO_CTRL_WPENDING:
+      ret = 0;
+      break;
+    case BIO_CTRL_FLUSH:
+      break;
+    case BIO_CTRL_GET_CALLBACK: {
+      int (**fptr)(const BIO *bio, int state, int xret);
+      fptr = (int (**)(const BIO *bio, int state, int xret))ptr;
+      *fptr = data->info_callback;
+    } break;
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+static long conn_callback_ctrl(BIO *bio, int cmd, bio_info_cb fp) {
+  long ret = 1;
+  BIO_CONNECT *data;
+
+  data = (BIO_CONNECT *)bio->ptr;
+
+  switch (cmd) {
+    case BIO_CTRL_SET_CALLBACK:
+      data->info_callback = (int (*)(const struct bio_st *, int, int))fp;
+      break;
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+BIO *BIO_new_connect(const char *hostname) {
+  BIO *ret;
+
+  ret = BIO_new(BIO_s_connect());
+  if (ret == NULL) {
+    return NULL;
+  }
+  if (!BIO_set_conn_hostname(ret, hostname)) {
+    BIO_free(ret);
+    return NULL;
+  }
+  return ret;
+}
+
+static const BIO_METHOD methods_connectp = {
+    BIO_TYPE_CONNECT, "socket connect",   conn_write, conn_read,
+    NULL /* puts */,  NULL /* gets */,    conn_ctrl,  conn_new,
+    conn_free,        conn_callback_ctrl,
+};
+
+const BIO_METHOD *BIO_s_connect(void) { return &methods_connectp; }
+
+int BIO_set_conn_hostname(BIO *bio, const char *name) {
+  return BIO_ctrl(bio, BIO_C_SET_CONNECT, 0, (void*) name);
+}
+
+int BIO_set_conn_port(BIO *bio, const char *port_str) {
+  return BIO_ctrl(bio, BIO_C_SET_CONNECT, 1, (void*) port_str);
+}
+
+int BIO_set_conn_int_port(BIO *bio, const int *port) {
+  char buf[DECIMAL_SIZE(int) + 1];
+  BIO_snprintf(buf, sizeof(buf), "%d", *port);
+  return BIO_set_conn_port(bio, buf);
+}
+
+int BIO_set_nbio(BIO *bio, int on) {
+  return BIO_ctrl(bio, BIO_C_SET_NBIO, on, NULL);
+}
+
+int BIO_do_connect(BIO *bio) {
+  return BIO_ctrl(bio, BIO_C_DO_STATE_MACHINE, 0, NULL);
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bio/connect.c.grpc_back

@@ -0,0 +1,545 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/bio.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#else
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <winsock2.h>
+#include <ws2tcpip.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+#endif
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "internal.h"
+#include "../internal.h"
+
+
+enum {
+  BIO_CONN_S_BEFORE,
+  BIO_CONN_S_BLOCKED_CONNECT,
+  BIO_CONN_S_OK,
+};
+
+typedef struct bio_connect_st {
+  int state;
+
+  char *param_hostname;
+  char *param_port;
+  int nbio;
+
+  unsigned short port;
+
+  struct sockaddr_storage them;
+  socklen_t them_length;
+
+  // the file descriptor is kept in bio->num in order to match the socket
+  // BIO.
+
+  // info_callback is called when the connection is initially made
+  // callback(BIO,state,ret);  The callback should return 'ret', state is for
+  // compatibility with the SSL info_callback.
+  int (*info_callback)(const BIO *bio, int state, int ret);
+} BIO_CONNECT;
+
+#if !defined(OPENSSL_WINDOWS)
+static int closesocket(int sock) {
+  return close(sock);
+}
+#endif
+
+// split_host_and_port sets |*out_host| and |*out_port| to the host and port
+// parsed from |name|. It returns one on success or zero on error. Even when
+// successful, |*out_port| may be NULL on return if no port was specified.
+static int split_host_and_port(char **out_host, char **out_port, const char *name) {
+  const char *host, *port = NULL;
+  size_t host_len = 0;
+
+  *out_host = NULL;
+  *out_port = NULL;
+
+  if (name[0] == '[') {  // bracketed IPv6 address
+    const char *close = strchr(name, ']');
+    if (close == NULL) {
+      return 0;
+    }
+    host = name + 1;
+    host_len = close - host;
+    if (close[1] == ':') {  // [IP]:port
+      port = close + 2;
+    } else if (close[1] != 0) {
+      return 0;
+    }
+  } else {
+    const char *colon = strchr(name, ':');
+    if (colon == NULL || strchr(colon + 1, ':') != NULL) {  // IPv6 address
+      host = name;
+      host_len = strlen(name);
+    } else {  // host:port
+      host = name;
+      host_len = colon - name;
+      port = colon + 1;
+    }
+  }
+
+  *out_host = OPENSSL_strndup(host, host_len);
+  if (*out_host == NULL) {
+    return 0;
+  }
+  if (port == NULL) {
+    *out_port = NULL;
+    return 1;
+  }
+  *out_port = OPENSSL_strdup(port);
+  if (*out_port == NULL) {
+    OPENSSL_free(*out_host);
+    *out_host = NULL;
+    return 0;
+  }
+  return 1;
+}
+
+static int conn_state(BIO *bio, BIO_CONNECT *c) {
+  int ret = -1, i;
+  int (*cb)(const BIO *, int, int) = NULL;
+
+  if (c->info_callback != NULL) {
+    cb = c->info_callback;
+  }
+
+  for (;;) {
+    switch (c->state) {
+      case BIO_CONN_S_BEFORE:
+        // If there's a hostname and a port, assume that both are
+        // exactly what they say. If there is only a hostname, try
+        // (just once) to split it into a hostname and port.
+
+        if (c->param_hostname == NULL) {
+          OPENSSL_PUT_ERROR(BIO, BIO_R_NO_HOSTNAME_SPECIFIED);
+          goto exit_loop;
+        }
+
+        if (c->param_port == NULL) {
+          char *host, *port;
+          if (!split_host_and_port(&host, &port, c->param_hostname) ||
+              port == NULL) {
+            OPENSSL_free(host);
+            OPENSSL_free(port);
+            OPENSSL_PUT_ERROR(BIO, BIO_R_NO_PORT_SPECIFIED);
+            ERR_add_error_data(2, "host=", c->param_hostname);
+            goto exit_loop;
+          }
+
+          OPENSSL_free(c->param_port);
+          c->param_port = port;
+          OPENSSL_free(c->param_hostname);
+          c->param_hostname = host;
+        }
+
+        if (!bio_ip_and_port_to_socket_and_addr(
+                &bio->num, &c->them, &c->them_length, c->param_hostname,
+                c->param_port)) {
+          OPENSSL_PUT_ERROR(BIO, BIO_R_UNABLE_TO_CREATE_SOCKET);
+          ERR_add_error_data(4, "host=", c->param_hostname, ":", c->param_port);
+          goto exit_loop;
+        }
+
+        if (c->nbio) {
+          if (!bio_socket_nbio(bio->num, 1)) {
+            OPENSSL_PUT_ERROR(BIO, BIO_R_ERROR_SETTING_NBIO);
+            ERR_add_error_data(4, "host=", c->param_hostname, ":",
+                               c->param_port);
+            goto exit_loop;
+          }
+        }
+
+        i = 1;
+        ret = setsockopt(bio->num, SOL_SOCKET, SO_KEEPALIVE, (char *)&i,
+                         sizeof(i));
+        if (ret < 0) {
+          OPENSSL_PUT_SYSTEM_ERROR();
+          OPENSSL_PUT_ERROR(BIO, BIO_R_KEEPALIVE);
+          ERR_add_error_data(4, "host=", c->param_hostname, ":", c->param_port);
+          goto exit_loop;
+        }
+
+        BIO_clear_retry_flags(bio);
+        ret = connect(bio->num, (struct sockaddr*) &c->them, c->them_length);
+        if (ret < 0) {
+          if (bio_fd_should_retry(ret)) {
+            BIO_set_flags(bio, (BIO_FLAGS_IO_SPECIAL | BIO_FLAGS_SHOULD_RETRY));
+            c->state = BIO_CONN_S_BLOCKED_CONNECT;
+            bio->retry_reason = BIO_RR_CONNECT;
+          } else {
+            OPENSSL_PUT_SYSTEM_ERROR();
+            OPENSSL_PUT_ERROR(BIO, BIO_R_CONNECT_ERROR);
+            ERR_add_error_data(4, "host=", c->param_hostname, ":",
+                               c->param_port);
+          }
+          goto exit_loop;
+        } else {
+          c->state = BIO_CONN_S_OK;
+        }
+        break;
+
+      case BIO_CONN_S_BLOCKED_CONNECT:
+        i = bio_sock_error(bio->num);
+        if (i) {
+          if (bio_fd_should_retry(ret)) {
+            BIO_set_flags(bio, (BIO_FLAGS_IO_SPECIAL | BIO_FLAGS_SHOULD_RETRY));
+            c->state = BIO_CONN_S_BLOCKED_CONNECT;
+            bio->retry_reason = BIO_RR_CONNECT;
+            ret = -1;
+          } else {
+            BIO_clear_retry_flags(bio);
+            OPENSSL_PUT_SYSTEM_ERROR();
+            OPENSSL_PUT_ERROR(BIO, BIO_R_NBIO_CONNECT_ERROR);
+            ERR_add_error_data(4, "host=", c->param_hostname, ":", c->param_port);
+            ret = 0;
+          }
+          goto exit_loop;
+        } else {
+          c->state = BIO_CONN_S_OK;
+        }
+        break;
+
+      case BIO_CONN_S_OK:
+        ret = 1;
+        goto exit_loop;
+      default:
+        assert(0);
+        goto exit_loop;
+    }
+
+    if (cb != NULL) {
+      ret = cb((BIO *)bio, c->state, ret);
+      if (ret == 0) {
+        goto end;
+      }
+    }
+  }
+
+exit_loop:
+  if (cb != NULL) {
+    ret = cb((BIO *)bio, c->state, ret);
+  }
+
+end:
+  return ret;
+}
+
+static BIO_CONNECT *BIO_CONNECT_new(void) {
+  BIO_CONNECT *ret = OPENSSL_malloc(sizeof(BIO_CONNECT));
+
+  if (ret == NULL) {
+    return NULL;
+  }
+  OPENSSL_memset(ret, 0, sizeof(BIO_CONNECT));
+
+  ret->state = BIO_CONN_S_BEFORE;
+  return ret;
+}
+
+static void BIO_CONNECT_free(BIO_CONNECT *c) {
+  if (c == NULL) {
+    return;
+  }
+
+  OPENSSL_free(c->param_hostname);
+  OPENSSL_free(c->param_port);
+  OPENSSL_free(c);
+}
+
+static int conn_new(BIO *bio) {
+  bio->init = 0;
+  bio->num = -1;
+  bio->flags = 0;
+  bio->ptr = (char *)BIO_CONNECT_new();
+  return bio->ptr != NULL;
+}
+
+static void conn_close_socket(BIO *bio) {
+  BIO_CONNECT *c = (BIO_CONNECT *) bio->ptr;
+
+  if (bio->num == -1) {
+    return;
+  }
+
+  // Only do a shutdown if things were established
+  if (c->state == BIO_CONN_S_OK) {
+    shutdown(bio->num, 2);
+  }
+  closesocket(bio->num);
+  bio->num = -1;
+}
+
+static int conn_free(BIO *bio) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->shutdown) {
+    conn_close_socket(bio);
+  }
+
+  BIO_CONNECT_free((BIO_CONNECT*) bio->ptr);
+
+  return 1;
+}
+
+static int conn_read(BIO *bio, char *out, int out_len) {
+  int ret = 0;
+  BIO_CONNECT *data;
+
+  data = (BIO_CONNECT *)bio->ptr;
+  if (data->state != BIO_CONN_S_OK) {
+    ret = conn_state(bio, data);
+    if (ret <= 0) {
+      return ret;
+    }
+  }
+
+  bio_clear_socket_error();
+  ret = recv(bio->num, out, out_len, 0);
+  BIO_clear_retry_flags(bio);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_read(bio);
+    }
+  }
+
+  return ret;
+}
+
+static int conn_write(BIO *bio, const char *in, int in_len) {
+  int ret;
+  BIO_CONNECT *data;
+
+  data = (BIO_CONNECT *)bio->ptr;
+  if (data->state != BIO_CONN_S_OK) {
+    ret = conn_state(bio, data);
+    if (ret <= 0) {
+      return ret;
+    }
+  }
+
+  bio_clear_socket_error();
+  ret = send(bio->num, in, in_len, 0);
+  BIO_clear_retry_flags(bio);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_write(bio);
+    }
+  }
+
+  return ret;
+}
+
+static long conn_ctrl(BIO *bio, int cmd, long num, void *ptr) {
+  int *ip;
+  long ret = 1;
+  BIO_CONNECT *data;
+
+  data = (BIO_CONNECT *)bio->ptr;
+
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      ret = 0;
+      data->state = BIO_CONN_S_BEFORE;
+      conn_close_socket(bio);
+      bio->flags = 0;
+      break;
+    case BIO_C_DO_STATE_MACHINE:
+      // use this one to start the connection
+      if (data->state != BIO_CONN_S_OK) {
+        ret = (long)conn_state(bio, data);
+      } else {
+        ret = 1;
+      }
+      break;
+    case BIO_C_SET_CONNECT:
+      if (ptr != NULL) {
+        bio->init = 1;
+        if (num == 0) {
+          OPENSSL_free(data->param_hostname);
+          data->param_hostname = OPENSSL_strdup(ptr);
+          if (data->param_hostname == NULL) {
+            ret = 0;
+          }
+        } else if (num == 1) {
+          OPENSSL_free(data->param_port);
+          data->param_port = OPENSSL_strdup(ptr);
+          if (data->param_port == NULL) {
+            ret = 0;
+          }
+        } else {
+          ret = 0;
+        }
+      }
+      break;
+    case BIO_C_SET_NBIO:
+      data->nbio = (int)num;
+      break;
+    case BIO_C_GET_FD:
+      if (bio->init) {
+        ip = (int *)ptr;
+        if (ip != NULL) {
+          *ip = bio->num;
+        }
+        ret = bio->num;
+      } else {
+        ret = -1;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = bio->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      bio->shutdown = (int)num;
+      break;
+    case BIO_CTRL_PENDING:
+    case BIO_CTRL_WPENDING:
+      ret = 0;
+      break;
+    case BIO_CTRL_FLUSH:
+      break;
+    case BIO_CTRL_GET_CALLBACK: {
+      int (**fptr)(const BIO *bio, int state, int xret);
+      fptr = (int (**)(const BIO *bio, int state, int xret))ptr;
+      *fptr = data->info_callback;
+    } break;
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+static long conn_callback_ctrl(BIO *bio, int cmd, bio_info_cb fp) {
+  long ret = 1;
+  BIO_CONNECT *data;
+
+  data = (BIO_CONNECT *)bio->ptr;
+
+  switch (cmd) {
+    case BIO_CTRL_SET_CALLBACK:
+      data->info_callback = (int (*)(const struct bio_st *, int, int))fp;
+      break;
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+BIO *BIO_new_connect(const char *hostname) {
+  BIO *ret;
+
+  ret = BIO_new(BIO_s_connect());
+  if (ret == NULL) {
+    return NULL;
+  }
+  if (!BIO_set_conn_hostname(ret, hostname)) {
+    BIO_free(ret);
+    return NULL;
+  }
+  return ret;
+}
+
+static const BIO_METHOD methods_connectp = {
+    BIO_TYPE_CONNECT, "socket connect",   conn_write, conn_read,
+    NULL /* puts */,  NULL /* gets */,    conn_ctrl,  conn_new,
+    conn_free,        conn_callback_ctrl,
+};
+
+const BIO_METHOD *BIO_s_connect(void) { return &methods_connectp; }
+
+int BIO_set_conn_hostname(BIO *bio, const char *name) {
+  return BIO_ctrl(bio, BIO_C_SET_CONNECT, 0, (void*) name);
+}
+
+int BIO_set_conn_port(BIO *bio, const char *port_str) {
+  return BIO_ctrl(bio, BIO_C_SET_CONNECT, 1, (void*) port_str);
+}
+
+int BIO_set_conn_int_port(BIO *bio, const int *port) {
+  char buf[DECIMAL_SIZE(int) + 1];
+  BIO_snprintf(buf, sizeof(buf), "%d", *port);
+  return BIO_set_conn_port(bio, buf);
+}
+
+int BIO_set_nbio(BIO *bio, int on) {
+  return BIO_ctrl(bio, BIO_C_SET_NBIO, on, NULL);
+}
+
+int BIO_do_connect(BIO *bio) {
+  return BIO_ctrl(bio, BIO_C_DO_STATE_MACHINE, 0, NULL);
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bio/fd.c

@@ -0,0 +1,279 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/bio.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <errno.h>
+#include <string.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <unistd.h>
+#else
+#include <io.h>
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <windows.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+#endif
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "internal.h"
+#include "../internal.h"
+
+
+static int bio_fd_non_fatal_error(int err) {
+  if (
+#ifdef EWOULDBLOCK
+    err == EWOULDBLOCK ||
+#endif
+#ifdef WSAEWOULDBLOCK
+    err == WSAEWOULDBLOCK ||
+#endif
+#ifdef ENOTCONN
+    err == ENOTCONN ||
+#endif
+#ifdef EINTR
+    err == EINTR ||
+#endif
+#ifdef EAGAIN
+    err == EAGAIN ||
+#endif
+#ifdef EPROTO
+    err == EPROTO ||
+#endif
+#ifdef EINPROGRESS
+    err == EINPROGRESS ||
+#endif
+#ifdef EALREADY
+    err == EALREADY ||
+#endif
+    0) {
+    return 1;
+  }
+  return 0;
+}
+
+#if defined(OPENSSL_WINDOWS)
+  #define BORINGSSL_ERRNO (int)GetLastError()
+  #define BORINGSSL_CLOSE _close
+  #define BORINGSSL_LSEEK _lseek
+  #define BORINGSSL_READ _read
+  #define BORINGSSL_WRITE _write
+#else
+  #define BORINGSSL_ERRNO errno
+  #define BORINGSSL_CLOSE close
+  #define BORINGSSL_LSEEK lseek
+  #define BORINGSSL_READ read
+  #define BORINGSSL_WRITE write
+#endif
+
+int bio_fd_should_retry(int i) {
+  if (i == -1) {
+    return bio_fd_non_fatal_error(BORINGSSL_ERRNO);
+  }
+  return 0;
+}
+
+BIO *BIO_new_fd(int fd, int close_flag) {
+  BIO *ret = BIO_new(BIO_s_fd());
+  if (ret == NULL) {
+    return NULL;
+  }
+  BIO_set_fd(ret, fd, close_flag);
+  return ret;
+}
+
+static int fd_new(BIO *bio) {
+  // num is used to store the file descriptor.
+  bio->num = -1;
+  return 1;
+}
+
+static int fd_free(BIO *bio) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->shutdown) {
+    if (bio->init) {
+      BORINGSSL_CLOSE(bio->num);
+    }
+    bio->init = 0;
+  }
+  return 1;
+}
+
+static int fd_read(BIO *b, char *out, int outl) {
+  int ret = 0;
+
+  ret = BORINGSSL_READ(b->num, out, outl);
+  BIO_clear_retry_flags(b);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_read(b);
+    }
+  }
+
+  return ret;
+}
+
+static int fd_write(BIO *b, const char *in, int inl) {
+  int ret = BORINGSSL_WRITE(b->num, in, inl);
+  BIO_clear_retry_flags(b);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_write(b);
+    }
+  }
+
+  return ret;
+}
+
+static long fd_ctrl(BIO *b, int cmd, long num, void *ptr) {
+  long ret = 1;
+  int *ip;
+
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      num = 0;
+      OPENSSL_FALLTHROUGH;
+    case BIO_C_FILE_SEEK:
+      ret = 0;
+      if (b->init) {
+        ret = (long)BORINGSSL_LSEEK(b->num, num, SEEK_SET);
+      }
+      break;
+    case BIO_C_FILE_TELL:
+    case BIO_CTRL_INFO:
+      ret = 0;
+      if (b->init) {
+        ret = (long)BORINGSSL_LSEEK(b->num, 0, SEEK_CUR);
+      }
+      break;
+    case BIO_C_SET_FD:
+      fd_free(b);
+      b->num = *((int *)ptr);
+      b->shutdown = (int)num;
+      b->init = 1;
+      break;
+    case BIO_C_GET_FD:
+      if (b->init) {
+        ip = (int *)ptr;
+        if (ip != NULL) {
+          *ip = b->num;
+        }
+        return b->num;
+      } else {
+        ret = -1;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = b->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      b->shutdown = (int)num;
+      break;
+    case BIO_CTRL_PENDING:
+    case BIO_CTRL_WPENDING:
+      ret = 0;
+      break;
+    case BIO_CTRL_FLUSH:
+      ret = 1;
+      break;
+    default:
+      ret = 0;
+      break;
+  }
+
+  return ret;
+}
+
+static int fd_gets(BIO *bp, char *buf, int size) {
+  char *ptr = buf;
+  char *end = buf + size - 1;
+
+  if (size <= 0) {
+    return 0;
+  }
+
+  while (ptr < end && fd_read(bp, ptr, 1) > 0 && ptr[0] != '\n') {
+    ptr++;
+  }
+
+  ptr[0] = '\0';
+
+  return ptr - buf;
+}
+
+static const BIO_METHOD methods_fdp = {
+    BIO_TYPE_FD, "file descriptor", fd_write, fd_read, NULL /* puts */,
+    fd_gets,     fd_ctrl,           fd_new,   fd_free, NULL /* callback_ctrl */,
+};
+
+const BIO_METHOD *BIO_s_fd(void) { return &methods_fdp; }
+
+int BIO_set_fd(BIO *bio, int fd, int close_flag) {
+  return BIO_int_ctrl(bio, BIO_C_SET_FD, close_flag, fd);
+}
+
+int BIO_get_fd(BIO *bio, int *out_fd) {
+  return BIO_ctrl(bio, BIO_C_GET_FD, 0, (char *) out_fd);
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bio/fd.c.grpc_back

@@ -0,0 +1,279 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/bio.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <errno.h>
+#include <string.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <unistd.h>
+#else
+#include <io.h>
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <windows.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+#endif
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "internal.h"
+#include "../internal.h"
+
+
+static int bio_fd_non_fatal_error(int err) {
+  if (
+#ifdef EWOULDBLOCK
+    err == EWOULDBLOCK ||
+#endif
+#ifdef WSAEWOULDBLOCK
+    err == WSAEWOULDBLOCK ||
+#endif
+#ifdef ENOTCONN
+    err == ENOTCONN ||
+#endif
+#ifdef EINTR
+    err == EINTR ||
+#endif
+#ifdef EAGAIN
+    err == EAGAIN ||
+#endif
+#ifdef EPROTO
+    err == EPROTO ||
+#endif
+#ifdef EINPROGRESS
+    err == EINPROGRESS ||
+#endif
+#ifdef EALREADY
+    err == EALREADY ||
+#endif
+    0) {
+    return 1;
+  }
+  return 0;
+}
+
+#if defined(OPENSSL_WINDOWS)
+  #define BORINGSSL_ERRNO (int)GetLastError()
+  #define BORINGSSL_CLOSE _close
+  #define BORINGSSL_LSEEK _lseek
+  #define BORINGSSL_READ _read
+  #define BORINGSSL_WRITE _write
+#else
+  #define BORINGSSL_ERRNO errno
+  #define BORINGSSL_CLOSE close
+  #define BORINGSSL_LSEEK lseek
+  #define BORINGSSL_READ read
+  #define BORINGSSL_WRITE write
+#endif
+
+int bio_fd_should_retry(int i) {
+  if (i == -1) {
+    return bio_fd_non_fatal_error(BORINGSSL_ERRNO);
+  }
+  return 0;
+}
+
+BIO *BIO_new_fd(int fd, int close_flag) {
+  BIO *ret = BIO_new(BIO_s_fd());
+  if (ret == NULL) {
+    return NULL;
+  }
+  BIO_set_fd(ret, fd, close_flag);
+  return ret;
+}
+
+static int fd_new(BIO *bio) {
+  // num is used to store the file descriptor.
+  bio->num = -1;
+  return 1;
+}
+
+static int fd_free(BIO *bio) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->shutdown) {
+    if (bio->init) {
+      BORINGSSL_CLOSE(bio->num);
+    }
+    bio->init = 0;
+  }
+  return 1;
+}
+
+static int fd_read(BIO *b, char *out, int outl) {
+  int ret = 0;
+
+  ret = BORINGSSL_READ(b->num, out, outl);
+  BIO_clear_retry_flags(b);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_read(b);
+    }
+  }
+
+  return ret;
+}
+
+static int fd_write(BIO *b, const char *in, int inl) {
+  int ret = BORINGSSL_WRITE(b->num, in, inl);
+  BIO_clear_retry_flags(b);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_write(b);
+    }
+  }
+
+  return ret;
+}
+
+static long fd_ctrl(BIO *b, int cmd, long num, void *ptr) {
+  long ret = 1;
+  int *ip;
+
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      num = 0;
+      OPENSSL_FALLTHROUGH;
+    case BIO_C_FILE_SEEK:
+      ret = 0;
+      if (b->init) {
+        ret = (long)BORINGSSL_LSEEK(b->num, num, SEEK_SET);
+      }
+      break;
+    case BIO_C_FILE_TELL:
+    case BIO_CTRL_INFO:
+      ret = 0;
+      if (b->init) {
+        ret = (long)BORINGSSL_LSEEK(b->num, 0, SEEK_CUR);
+      }
+      break;
+    case BIO_C_SET_FD:
+      fd_free(b);
+      b->num = *((int *)ptr);
+      b->shutdown = (int)num;
+      b->init = 1;
+      break;
+    case BIO_C_GET_FD:
+      if (b->init) {
+        ip = (int *)ptr;
+        if (ip != NULL) {
+          *ip = b->num;
+        }
+        return b->num;
+      } else {
+        ret = -1;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = b->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      b->shutdown = (int)num;
+      break;
+    case BIO_CTRL_PENDING:
+    case BIO_CTRL_WPENDING:
+      ret = 0;
+      break;
+    case BIO_CTRL_FLUSH:
+      ret = 1;
+      break;
+    default:
+      ret = 0;
+      break;
+  }
+
+  return ret;
+}
+
+static int fd_gets(BIO *bp, char *buf, int size) {
+  char *ptr = buf;
+  char *end = buf + size - 1;
+
+  if (size <= 0) {
+    return 0;
+  }
+
+  while (ptr < end && fd_read(bp, ptr, 1) > 0 && ptr[0] != '\n') {
+    ptr++;
+  }
+
+  ptr[0] = '\0';
+
+  return ptr - buf;
+}
+
+static const BIO_METHOD methods_fdp = {
+    BIO_TYPE_FD, "file descriptor", fd_write, fd_read, NULL /* puts */,
+    fd_gets,     fd_ctrl,           fd_new,   fd_free, NULL /* callback_ctrl */,
+};
+
+const BIO_METHOD *BIO_s_fd(void) { return &methods_fdp; }
+
+int BIO_set_fd(BIO *bio, int fd, int close_flag) {
+  return BIO_int_ctrl(bio, BIO_C_SET_FD, close_flag, fd);
+}
+
+int BIO_get_fd(BIO *bio, int *out_fd) {
+  return BIO_ctrl(bio, BIO_C_GET_FD, 0, (char *) out_fd);
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bio/file.c

@@ -0,0 +1,317 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#if defined(__linux) || defined(__sun) || defined(__hpux)
+// Following definition aliases fopen to fopen64 on above mentioned
+// platforms. This makes it possible to open and sequentially access
+// files larger than 2GB from 32-bit application. It does not allow to
+// traverse them beyond 2GB with fseek/ftell, but on the other hand *no*
+// 32-bit platform permits that, not with fseek/ftell. Not to mention
+// that breaking 2GB limit for seeking would require surgery to *our*
+// API. But sequential access suffices for practical cases when you
+// can run into large files, such as fingerprinting, so we can let API
+// alone. For reference, the list of 32-bit platforms which allow for
+// sequential access of large files without extra "magic" comprise *BSD,
+// Darwin, IRIX...
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
+#endif
+
+#include <openssl_grpc/bio.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "../internal.h"
+
+
+#define BIO_FP_READ 0x02
+#define BIO_FP_WRITE 0x04
+#define BIO_FP_APPEND 0x08
+
+BIO *BIO_new_file(const char *filename, const char *mode) {
+  BIO *ret;
+  FILE *file;
+
+  file = fopen(filename, mode);
+  if (file == NULL) {
+    OPENSSL_PUT_SYSTEM_ERROR();
+
+    ERR_add_error_data(5, "fopen('", filename, "','", mode, "')");
+    if (errno == ENOENT) {
+      OPENSSL_PUT_ERROR(BIO, BIO_R_NO_SUCH_FILE);
+    } else {
+      OPENSSL_PUT_ERROR(BIO, BIO_R_SYS_LIB);
+    }
+    return NULL;
+  }
+
+  ret = BIO_new_fp(file, BIO_CLOSE);
+  if (ret == NULL) {
+    fclose(file);
+    return NULL;
+  }
+
+  return ret;
+}
+
+BIO *BIO_new_fp(FILE *stream, int close_flag) {
+  BIO *ret = BIO_new(BIO_s_file());
+
+  if (ret == NULL) {
+    return NULL;
+  }
+
+  BIO_set_fp(ret, stream, close_flag);
+  return ret;
+}
+
+static int file_new(BIO *bio) { return 1; }
+
+static int file_free(BIO *bio) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (!bio->shutdown) {
+    return 1;
+  }
+
+  if (bio->init && bio->ptr != NULL) {
+    fclose(bio->ptr);
+    bio->ptr = NULL;
+  }
+  bio->init = 0;
+
+  return 1;
+}
+
+static int file_read(BIO *b, char *out, int outl) {
+  if (!b->init) {
+    return 0;
+  }
+
+  size_t ret = fread(out, 1, outl, (FILE *)b->ptr);
+  if (ret == 0 && ferror((FILE *)b->ptr)) {
+    OPENSSL_PUT_SYSTEM_ERROR();
+    OPENSSL_PUT_ERROR(BIO, ERR_R_SYS_LIB);
+    return -1;
+  }
+
+  // fread reads at most |outl| bytes, so |ret| fits in an int.
+  return (int)ret;
+}
+
+static int file_write(BIO *b, const char *in, int inl) {
+  int ret = 0;
+
+  if (!b->init) {
+    return 0;
+  }
+
+  ret = fwrite(in, inl, 1, (FILE *)b->ptr);
+  if (ret > 0) {
+    ret = inl;
+  }
+  return ret;
+}
+
+static long file_ctrl(BIO *b, int cmd, long num, void *ptr) {
+  long ret = 1;
+  FILE *fp = (FILE *)b->ptr;
+  FILE **fpp;
+  char p[4];
+
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      num = 0;
+      OPENSSL_FALLTHROUGH;
+    case BIO_C_FILE_SEEK:
+      ret = (long)fseek(fp, num, 0);
+      break;
+    case BIO_CTRL_EOF:
+      ret = (long)feof(fp);
+      break;
+    case BIO_C_FILE_TELL:
+    case BIO_CTRL_INFO:
+      ret = ftell(fp);
+      break;
+    case BIO_C_SET_FILE_PTR:
+      file_free(b);
+      b->shutdown = (int)num & BIO_CLOSE;
+      b->ptr = ptr;
+      b->init = 1;
+      break;
+    case BIO_C_SET_FILENAME:
+      file_free(b);
+      b->shutdown = (int)num & BIO_CLOSE;
+      if (num & BIO_FP_APPEND) {
+        if (num & BIO_FP_READ) {
+          OPENSSL_strlcpy(p, "a+", sizeof(p));
+        } else {
+          OPENSSL_strlcpy(p, "a", sizeof(p));
+        }
+      } else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE)) {
+        OPENSSL_strlcpy(p, "r+", sizeof(p));
+      } else if (num & BIO_FP_WRITE) {
+        OPENSSL_strlcpy(p, "w", sizeof(p));
+      } else if (num & BIO_FP_READ) {
+        OPENSSL_strlcpy(p, "r", sizeof(p));
+      } else {
+        OPENSSL_PUT_ERROR(BIO, BIO_R_BAD_FOPEN_MODE);
+        ret = 0;
+        break;
+      }
+      fp = fopen(ptr, p);
+      if (fp == NULL) {
+        OPENSSL_PUT_SYSTEM_ERROR();
+        ERR_add_error_data(5, "fopen('", ptr, "','", p, "')");
+        OPENSSL_PUT_ERROR(BIO, ERR_R_SYS_LIB);
+        ret = 0;
+        break;
+      }
+      b->ptr = fp;
+      b->init = 1;
+      break;
+    case BIO_C_GET_FILE_PTR:
+      // the ptr parameter is actually a FILE ** in this case.
+      if (ptr != NULL) {
+        fpp = (FILE **)ptr;
+        *fpp = (FILE *)b->ptr;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = (long)b->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      b->shutdown = (int)num;
+      break;
+    case BIO_CTRL_FLUSH:
+      ret = 0 == fflush((FILE *)b->ptr);
+      break;
+    case BIO_CTRL_WPENDING:
+    case BIO_CTRL_PENDING:
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+static int file_gets(BIO *bp, char *buf, int size) {
+  int ret = 0;
+
+  if (size == 0) {
+    return 0;
+  }
+
+  if (!fgets(buf, size, (FILE *)bp->ptr)) {
+    buf[0] = 0;
+    goto err;
+  }
+  ret = strlen(buf);
+
+err:
+  return ret;
+}
+
+static const BIO_METHOD methods_filep = {
+    BIO_TYPE_FILE,   "FILE pointer",
+    file_write,      file_read,
+    NULL /* puts */, file_gets,
+    file_ctrl,       file_new,
+    file_free,       NULL /* callback_ctrl */,
+};
+
+const BIO_METHOD *BIO_s_file(void) { return &methods_filep; }
+
+
+int BIO_get_fp(BIO *bio, FILE **out_file) {
+  return BIO_ctrl(bio, BIO_C_GET_FILE_PTR, 0, (char*) out_file);
+}
+
+int BIO_set_fp(BIO *bio, FILE *file, int close_flag) {
+  return BIO_ctrl(bio, BIO_C_SET_FILE_PTR, close_flag, (char *) file);
+}
+
+int BIO_read_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_READ,
+                  (char *)filename);
+}
+
+int BIO_write_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_WRITE,
+                  (char *)filename);
+}
+
+int BIO_append_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_APPEND,
+                  (char *)filename);
+}
+
+int BIO_rw_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME,
+                  BIO_CLOSE | BIO_FP_READ | BIO_FP_WRITE, (char *)filename);
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bio/file.c.grpc_back

@@ -0,0 +1,317 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#if defined(__linux) || defined(__sun) || defined(__hpux)
+// Following definition aliases fopen to fopen64 on above mentioned
+// platforms. This makes it possible to open and sequentially access
+// files larger than 2GB from 32-bit application. It does not allow to
+// traverse them beyond 2GB with fseek/ftell, but on the other hand *no*
+// 32-bit platform permits that, not with fseek/ftell. Not to mention
+// that breaking 2GB limit for seeking would require surgery to *our*
+// API. But sequential access suffices for practical cases when you
+// can run into large files, such as fingerprinting, so we can let API
+// alone. For reference, the list of 32-bit platforms which allow for
+// sequential access of large files without extra "magic" comprise *BSD,
+// Darwin, IRIX...
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
+#endif
+
+#include <openssl/bio.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "../internal.h"
+
+
+#define BIO_FP_READ 0x02
+#define BIO_FP_WRITE 0x04
+#define BIO_FP_APPEND 0x08
+
+BIO *BIO_new_file(const char *filename, const char *mode) {
+  BIO *ret;
+  FILE *file;
+
+  file = fopen(filename, mode);
+  if (file == NULL) {
+    OPENSSL_PUT_SYSTEM_ERROR();
+
+    ERR_add_error_data(5, "fopen('", filename, "','", mode, "')");
+    if (errno == ENOENT) {
+      OPENSSL_PUT_ERROR(BIO, BIO_R_NO_SUCH_FILE);
+    } else {
+      OPENSSL_PUT_ERROR(BIO, BIO_R_SYS_LIB);
+    }
+    return NULL;
+  }
+
+  ret = BIO_new_fp(file, BIO_CLOSE);
+  if (ret == NULL) {
+    fclose(file);
+    return NULL;
+  }
+
+  return ret;
+}
+
+BIO *BIO_new_fp(FILE *stream, int close_flag) {
+  BIO *ret = BIO_new(BIO_s_file());
+
+  if (ret == NULL) {
+    return NULL;
+  }
+
+  BIO_set_fp(ret, stream, close_flag);
+  return ret;
+}
+
+static int file_new(BIO *bio) { return 1; }
+
+static int file_free(BIO *bio) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (!bio->shutdown) {
+    return 1;
+  }
+
+  if (bio->init && bio->ptr != NULL) {
+    fclose(bio->ptr);
+    bio->ptr = NULL;
+  }
+  bio->init = 0;
+
+  return 1;
+}
+
+static int file_read(BIO *b, char *out, int outl) {
+  if (!b->init) {
+    return 0;
+  }
+
+  size_t ret = fread(out, 1, outl, (FILE *)b->ptr);
+  if (ret == 0 && ferror((FILE *)b->ptr)) {
+    OPENSSL_PUT_SYSTEM_ERROR();
+    OPENSSL_PUT_ERROR(BIO, ERR_R_SYS_LIB);
+    return -1;
+  }
+
+  // fread reads at most |outl| bytes, so |ret| fits in an int.
+  return (int)ret;
+}
+
+static int file_write(BIO *b, const char *in, int inl) {
+  int ret = 0;
+
+  if (!b->init) {
+    return 0;
+  }
+
+  ret = fwrite(in, inl, 1, (FILE *)b->ptr);
+  if (ret > 0) {
+    ret = inl;
+  }
+  return ret;
+}
+
+static long file_ctrl(BIO *b, int cmd, long num, void *ptr) {
+  long ret = 1;
+  FILE *fp = (FILE *)b->ptr;
+  FILE **fpp;
+  char p[4];
+
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      num = 0;
+      OPENSSL_FALLTHROUGH;
+    case BIO_C_FILE_SEEK:
+      ret = (long)fseek(fp, num, 0);
+      break;
+    case BIO_CTRL_EOF:
+      ret = (long)feof(fp);
+      break;
+    case BIO_C_FILE_TELL:
+    case BIO_CTRL_INFO:
+      ret = ftell(fp);
+      break;
+    case BIO_C_SET_FILE_PTR:
+      file_free(b);
+      b->shutdown = (int)num & BIO_CLOSE;
+      b->ptr = ptr;
+      b->init = 1;
+      break;
+    case BIO_C_SET_FILENAME:
+      file_free(b);
+      b->shutdown = (int)num & BIO_CLOSE;
+      if (num & BIO_FP_APPEND) {
+        if (num & BIO_FP_READ) {
+          OPENSSL_strlcpy(p, "a+", sizeof(p));
+        } else {
+          OPENSSL_strlcpy(p, "a", sizeof(p));
+        }
+      } else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE)) {
+        OPENSSL_strlcpy(p, "r+", sizeof(p));
+      } else if (num & BIO_FP_WRITE) {
+        OPENSSL_strlcpy(p, "w", sizeof(p));
+      } else if (num & BIO_FP_READ) {
+        OPENSSL_strlcpy(p, "r", sizeof(p));
+      } else {
+        OPENSSL_PUT_ERROR(BIO, BIO_R_BAD_FOPEN_MODE);
+        ret = 0;
+        break;
+      }
+      fp = fopen(ptr, p);
+      if (fp == NULL) {
+        OPENSSL_PUT_SYSTEM_ERROR();
+        ERR_add_error_data(5, "fopen('", ptr, "','", p, "')");
+        OPENSSL_PUT_ERROR(BIO, ERR_R_SYS_LIB);
+        ret = 0;
+        break;
+      }
+      b->ptr = fp;
+      b->init = 1;
+      break;
+    case BIO_C_GET_FILE_PTR:
+      // the ptr parameter is actually a FILE ** in this case.
+      if (ptr != NULL) {
+        fpp = (FILE **)ptr;
+        *fpp = (FILE *)b->ptr;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = (long)b->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      b->shutdown = (int)num;
+      break;
+    case BIO_CTRL_FLUSH:
+      ret = 0 == fflush((FILE *)b->ptr);
+      break;
+    case BIO_CTRL_WPENDING:
+    case BIO_CTRL_PENDING:
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+static int file_gets(BIO *bp, char *buf, int size) {
+  int ret = 0;
+
+  if (size == 0) {
+    return 0;
+  }
+
+  if (!fgets(buf, size, (FILE *)bp->ptr)) {
+    buf[0] = 0;
+    goto err;
+  }
+  ret = strlen(buf);
+
+err:
+  return ret;
+}
+
+static const BIO_METHOD methods_filep = {
+    BIO_TYPE_FILE,   "FILE pointer",
+    file_write,      file_read,
+    NULL /* puts */, file_gets,
+    file_ctrl,       file_new,
+    file_free,       NULL /* callback_ctrl */,
+};
+
+const BIO_METHOD *BIO_s_file(void) { return &methods_filep; }
+
+
+int BIO_get_fp(BIO *bio, FILE **out_file) {
+  return BIO_ctrl(bio, BIO_C_GET_FILE_PTR, 0, (char*) out_file);
+}
+
+int BIO_set_fp(BIO *bio, FILE *file, int close_flag) {
+  return BIO_ctrl(bio, BIO_C_SET_FILE_PTR, close_flag, (char *) file);
+}
+
+int BIO_read_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_READ,
+                  (char *)filename);
+}
+
+int BIO_write_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_WRITE,
+                  (char *)filename);
+}
+
+int BIO_append_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_APPEND,
+                  (char *)filename);
+}
+
+int BIO_rw_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME,
+                  BIO_CLOSE | BIO_FP_READ | BIO_FP_WRITE, (char *)filename);
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bio/hexdump.c

@@ -0,0 +1,192 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/bio.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include "../internal.h"
+
+
+// hexdump_ctx contains the state of a hexdump.
+struct hexdump_ctx {
+  BIO *bio;
+  char right_chars[18];  // the contents of the right-hand side, ASCII dump.
+  unsigned used;         // number of bytes in the current line.
+  size_t n;              // number of bytes total.
+  unsigned indent;
+};
+
+static void hexbyte(char *out, uint8_t b) {
+  static const char hextable[] = "0123456789abcdef";
+  out[0] = hextable[b>>4];
+  out[1] = hextable[b&0x0f];
+}
+
+static char to_char(uint8_t b) {
+  if (b < 32 || b > 126) {
+          return '.';
+  }
+  return b;
+}
+
+// hexdump_write adds |len| bytes of |data| to the current hex dump described by
+// |ctx|.
+static int hexdump_write(struct hexdump_ctx *ctx, const uint8_t *data,
+                         size_t len) {
+  char buf[10];
+  unsigned l;
+
+  // Output lines look like:
+  // 00000010  2e 2f 30 31 32 33 34 35  36 37 38 ... 3c 3d // |./0123456789:;<=|
+  // ^ offset                          ^ extra space           ^ ASCII of line
+
+  for (size_t i = 0; i < len; i++) {
+    if (ctx->used == 0) {
+      // The beginning of a line.
+      BIO_indent(ctx->bio, ctx->indent, UINT_MAX);
+
+      hexbyte(&buf[0], ctx->n >> 24);
+      hexbyte(&buf[2], ctx->n >> 16);
+      hexbyte(&buf[4], ctx->n >> 8);
+      hexbyte(&buf[6], ctx->n);
+      buf[8] = buf[9] = ' ';
+      if (BIO_write(ctx->bio, buf, 10) < 0) {
+        return 0;
+      }
+    }
+
+    hexbyte(buf, data[i]);
+    buf[2] = ' ';
+    l = 3;
+    if (ctx->used == 7) {
+      // There's an additional space after the 8th byte.
+      buf[3] = ' ';
+      l = 4;
+    } else if (ctx->used == 15) {
+      // At the end of the line there's an extra space and the bar for the
+      // right column.
+      buf[3] = ' ';
+      buf[4] = '|';
+      l = 5;
+    }
+
+    if (BIO_write(ctx->bio, buf, l) < 0) {
+      return 0;
+    }
+    ctx->right_chars[ctx->used] = to_char(data[i]);
+    ctx->used++;
+    ctx->n++;
+    if (ctx->used == 16) {
+      ctx->right_chars[16] = '|';
+      ctx->right_chars[17] = '\n';
+      if (BIO_write(ctx->bio, ctx->right_chars, sizeof(ctx->right_chars)) < 0) {
+        return 0;
+      }
+      ctx->used = 0;
+    }
+  }
+
+  return 1;
+}
+
+// finish flushes any buffered data in |ctx|.
+static int finish(struct hexdump_ctx *ctx) {
+  // See the comments in |hexdump| for the details of this format.
+  const unsigned n_bytes = ctx->used;
+  unsigned l;
+  char buf[5];
+
+  if (n_bytes == 0) {
+    return 1;
+  }
+
+  OPENSSL_memset(buf, ' ', 4);
+  buf[4] = '|';
+
+  for (; ctx->used < 16; ctx->used++) {
+    l = 3;
+    if (ctx->used == 7) {
+      l = 4;
+    } else if (ctx->used == 15) {
+      l = 5;
+    }
+    if (BIO_write(ctx->bio, buf, l) < 0) {
+      return 0;
+    }
+  }
+
+  ctx->right_chars[n_bytes] = '|';
+  ctx->right_chars[n_bytes + 1] = '\n';
+  if (BIO_write(ctx->bio, ctx->right_chars, n_bytes + 2) < 0) {
+    return 0;
+  }
+  return 1;
+}
+
+int BIO_hexdump(BIO *bio, const uint8_t *data, size_t len, unsigned indent) {
+  struct hexdump_ctx ctx;
+  OPENSSL_memset(&ctx, 0, sizeof(ctx));
+  ctx.bio = bio;
+  ctx.indent = indent;
+
+  if (!hexdump_write(&ctx, data, len) || !finish(&ctx)) {
+    return 0;
+  }
+
+  return 1;
+}

Pods/BoringSSL-GRPC/src/crypto/bio/hexdump.c.grpc_back

@@ -0,0 +1,192 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/bio.h>
+
+#include <limits.h>
+#include <string.h>
+
+#include "../internal.h"
+
+
+// hexdump_ctx contains the state of a hexdump.
+struct hexdump_ctx {
+  BIO *bio;
+  char right_chars[18];  // the contents of the right-hand side, ASCII dump.
+  unsigned used;         // number of bytes in the current line.
+  size_t n;              // number of bytes total.
+  unsigned indent;
+};
+
+static void hexbyte(char *out, uint8_t b) {
+  static const char hextable[] = "0123456789abcdef";
+  out[0] = hextable[b>>4];
+  out[1] = hextable[b&0x0f];
+}
+
+static char to_char(uint8_t b) {
+  if (b < 32 || b > 126) {
+          return '.';
+  }
+  return b;
+}
+
+// hexdump_write adds |len| bytes of |data| to the current hex dump described by
+// |ctx|.
+static int hexdump_write(struct hexdump_ctx *ctx, const uint8_t *data,
+                         size_t len) {
+  char buf[10];
+  unsigned l;
+
+  // Output lines look like:
+  // 00000010  2e 2f 30 31 32 33 34 35  36 37 38 ... 3c 3d // |./0123456789:;<=|
+  // ^ offset                          ^ extra space           ^ ASCII of line
+
+  for (size_t i = 0; i < len; i++) {
+    if (ctx->used == 0) {
+      // The beginning of a line.
+      BIO_indent(ctx->bio, ctx->indent, UINT_MAX);
+
+      hexbyte(&buf[0], ctx->n >> 24);
+      hexbyte(&buf[2], ctx->n >> 16);
+      hexbyte(&buf[4], ctx->n >> 8);
+      hexbyte(&buf[6], ctx->n);
+      buf[8] = buf[9] = ' ';
+      if (BIO_write(ctx->bio, buf, 10) < 0) {
+        return 0;
+      }
+    }
+
+    hexbyte(buf, data[i]);
+    buf[2] = ' ';
+    l = 3;
+    if (ctx->used == 7) {
+      // There's an additional space after the 8th byte.
+      buf[3] = ' ';
+      l = 4;
+    } else if (ctx->used == 15) {
+      // At the end of the line there's an extra space and the bar for the
+      // right column.
+      buf[3] = ' ';
+      buf[4] = '|';
+      l = 5;
+    }
+
+    if (BIO_write(ctx->bio, buf, l) < 0) {
+      return 0;
+    }
+    ctx->right_chars[ctx->used] = to_char(data[i]);
+    ctx->used++;
+    ctx->n++;
+    if (ctx->used == 16) {
+      ctx->right_chars[16] = '|';
+      ctx->right_chars[17] = '\n';
+      if (BIO_write(ctx->bio, ctx->right_chars, sizeof(ctx->right_chars)) < 0) {
+        return 0;
+      }
+      ctx->used = 0;
+    }
+  }
+
+  return 1;
+}
+
+// finish flushes any buffered data in |ctx|.
+static int finish(struct hexdump_ctx *ctx) {
+  // See the comments in |hexdump| for the details of this format.
+  const unsigned n_bytes = ctx->used;
+  unsigned l;
+  char buf[5];
+
+  if (n_bytes == 0) {
+    return 1;
+  }
+
+  OPENSSL_memset(buf, ' ', 4);
+  buf[4] = '|';
+
+  for (; ctx->used < 16; ctx->used++) {
+    l = 3;
+    if (ctx->used == 7) {
+      l = 4;
+    } else if (ctx->used == 15) {
+      l = 5;
+    }
+    if (BIO_write(ctx->bio, buf, l) < 0) {
+      return 0;
+    }
+  }
+
+  ctx->right_chars[n_bytes] = '|';
+  ctx->right_chars[n_bytes + 1] = '\n';
+  if (BIO_write(ctx->bio, ctx->right_chars, n_bytes + 2) < 0) {
+    return 0;
+  }
+  return 1;
+}
+
+int BIO_hexdump(BIO *bio, const uint8_t *data, size_t len, unsigned indent) {
+  struct hexdump_ctx ctx;
+  OPENSSL_memset(&ctx, 0, sizeof(ctx));
+  ctx.bio = bio;
+  ctx.indent = indent;
+
+  if (!hexdump_write(&ctx, data, len) || !finish(&ctx)) {
+    return 0;
+  }
+
+  return 1;
+}

Pods/BoringSSL-GRPC/src/crypto/bio/internal.h

@@ -0,0 +1,111 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#ifndef OPENSSL_HEADER_BIO_INTERNAL_H
+#define OPENSSL_HEADER_BIO_INTERNAL_H
+
+#include <openssl_grpc/base.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#if defined(OPENSSL_PNACL)
+// newlib uses u_short in socket.h without defining it.
+typedef unsigned short u_short;
+#endif
+#include <sys/types.h>
+#include <sys/socket.h>
+#else
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <winsock2.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+typedef int socklen_t;
+#endif
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+// BIO_ip_and_port_to_socket_and_addr creates a socket and fills in |*out_addr|
+// and |*out_addr_length| with the correct values for connecting to |hostname|
+// on |port_str|. It returns one on success or zero on error.
+int bio_ip_and_port_to_socket_and_addr(int *out_sock,
+                                       struct sockaddr_storage *out_addr,
+                                       socklen_t *out_addr_length,
+                                       const char *hostname,
+                                       const char *port_str);
+
+// BIO_socket_nbio sets whether |sock| is non-blocking. It returns one on
+// success and zero otherwise.
+int bio_socket_nbio(int sock, int on);
+
+// BIO_clear_socket_error clears the last system socket error.
+//
+// TODO(fork): remove all callers of this.
+void bio_clear_socket_error(void);
+
+// BIO_sock_error returns the last socket error on |sock|.
+int bio_sock_error(int sock);
+
+// BIO_fd_should_retry returns non-zero if |return_value| indicates an error
+// and |errno| indicates that it's non-fatal.
+int bio_fd_should_retry(int return_value);
+
+
+#if defined(__cplusplus)
+}  // extern C
+#endif
+
+#endif  // OPENSSL_HEADER_BIO_INTERNAL_H

Pods/BoringSSL-GRPC/src/crypto/bio/internal.h.grpc_back

@@ -0,0 +1,111 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#ifndef OPENSSL_HEADER_BIO_INTERNAL_H
+#define OPENSSL_HEADER_BIO_INTERNAL_H
+
+#include <openssl/base.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#if defined(OPENSSL_PNACL)
+// newlib uses u_short in socket.h without defining it.
+typedef unsigned short u_short;
+#endif
+#include <sys/types.h>
+#include <sys/socket.h>
+#else
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <winsock2.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+typedef int socklen_t;
+#endif
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+// BIO_ip_and_port_to_socket_and_addr creates a socket and fills in |*out_addr|
+// and |*out_addr_length| with the correct values for connecting to |hostname|
+// on |port_str|. It returns one on success or zero on error.
+int bio_ip_and_port_to_socket_and_addr(int *out_sock,
+                                       struct sockaddr_storage *out_addr,
+                                       socklen_t *out_addr_length,
+                                       const char *hostname,
+                                       const char *port_str);
+
+// BIO_socket_nbio sets whether |sock| is non-blocking. It returns one on
+// success and zero otherwise.
+int bio_socket_nbio(int sock, int on);
+
+// BIO_clear_socket_error clears the last system socket error.
+//
+// TODO(fork): remove all callers of this.
+void bio_clear_socket_error(void);
+
+// BIO_sock_error returns the last socket error on |sock|.
+int bio_sock_error(int sock);
+
+// BIO_fd_should_retry returns non-zero if |return_value| indicates an error
+// and |errno| indicates that it's non-fatal.
+int bio_fd_should_retry(int return_value);
+
+
+#if defined(__cplusplus)
+}  // extern C
+#endif
+
+#endif  // OPENSSL_HEADER_BIO_INTERNAL_H

Pods/BoringSSL-GRPC/src/crypto/bio/pair.c

@@ -0,0 +1,488 @@
+/* ====================================================================
+ * Copyright (c) 1998-2003 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    [email protected].
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * ([email protected]).  This product includes software written by Tim
+ * Hudson ([email protected]). */
+
+#include <openssl_grpc/bio.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "../internal.h"
+
+
+struct bio_bio_st {
+  BIO *peer;  // NULL if buf == NULL.
+              // If peer != NULL, then peer->ptr is also a bio_bio_st,
+              // and its "peer" member points back to us.
+              // peer != NULL iff init != 0 in the BIO.
+
+  // This is for what we write (i.e. reading uses peer's struct):
+  int closed;     // valid iff peer != NULL
+  size_t len;     // valid iff buf != NULL; 0 if peer == NULL
+  size_t offset;  // valid iff buf != NULL; 0 if len == 0
+  size_t size;
+  uint8_t *buf;  // "size" elements (if != NULL)
+
+  size_t request;  // valid iff peer != NULL; 0 if len != 0,
+                   // otherwise set by peer to number of bytes
+                   // it (unsuccessfully) tried to read,
+                   // never more than buffer space (size-len) warrants.
+};
+
+static int bio_new(BIO *bio) {
+  struct bio_bio_st *b;
+
+  b = OPENSSL_malloc(sizeof *b);
+  if (b == NULL) {
+    return 0;
+  }
+  OPENSSL_memset(b, 0, sizeof(struct bio_bio_st));
+
+  b->size = 17 * 1024;  // enough for one TLS record (just a default)
+  bio->ptr = b;
+  return 1;
+}
+
+static void bio_destroy_pair(BIO *bio) {
+  struct bio_bio_st *b = bio->ptr;
+  BIO *peer_bio;
+  struct bio_bio_st *peer_b;
+
+  if (b == NULL) {
+    return;
+  }
+
+  peer_bio = b->peer;
+  if (peer_bio == NULL) {
+    return;
+  }
+
+  peer_b = peer_bio->ptr;
+
+  assert(peer_b != NULL);
+  assert(peer_b->peer == bio);
+
+  peer_b->peer = NULL;
+  peer_bio->init = 0;
+  assert(peer_b->buf != NULL);
+  peer_b->len = 0;
+  peer_b->offset = 0;
+
+  b->peer = NULL;
+  bio->init = 0;
+  assert(b->buf != NULL);
+  b->len = 0;
+  b->offset = 0;
+}
+
+static int bio_free(BIO *bio) {
+  struct bio_bio_st *b;
+
+  if (bio == NULL) {
+    return 0;
+  }
+  b = bio->ptr;
+
+  assert(b != NULL);
+
+  if (b->peer) {
+    bio_destroy_pair(bio);
+  }
+
+  OPENSSL_free(b->buf);
+  OPENSSL_free(b);
+
+  return 1;
+}
+
+static int bio_read(BIO *bio, char *buf, int size_) {
+  size_t size = size_;
+  size_t rest;
+  struct bio_bio_st *b, *peer_b;
+
+  BIO_clear_retry_flags(bio);
+
+  if (!bio->init) {
+    return 0;
+  }
+
+  b = bio->ptr;
+  assert(b != NULL);
+  assert(b->peer != NULL);
+  peer_b = b->peer->ptr;
+  assert(peer_b != NULL);
+  assert(peer_b->buf != NULL);
+
+  peer_b->request = 0;  // will be set in "retry_read" situation
+
+  if (buf == NULL || size == 0) {
+    return 0;
+  }
+
+  if (peer_b->len == 0) {
+    if (peer_b->closed) {
+      return 0;  // writer has closed, and no data is left
+    } else {
+      BIO_set_retry_read(bio);  // buffer is empty
+      if (size <= peer_b->size) {
+        peer_b->request = size;
+      } else {
+        // don't ask for more than the peer can
+        // deliver in one write
+        peer_b->request = peer_b->size;
+      }
+      return -1;
+    }
+  }
+
+  // we can read
+  if (peer_b->len < size) {
+    size = peer_b->len;
+  }
+
+  // now read "size" bytes
+  rest = size;
+
+  assert(rest > 0);
+  // one or two iterations
+  do {
+    size_t chunk;
+
+    assert(rest <= peer_b->len);
+    if (peer_b->offset + rest <= peer_b->size) {
+      chunk = rest;
+    } else {
+      // wrap around ring buffer
+      chunk = peer_b->size - peer_b->offset;
+    }
+    assert(peer_b->offset + chunk <= peer_b->size);
+
+    OPENSSL_memcpy(buf, peer_b->buf + peer_b->offset, chunk);
+
+    peer_b->len -= chunk;
+    if (peer_b->len) {
+      peer_b->offset += chunk;
+      assert(peer_b->offset <= peer_b->size);
+      if (peer_b->offset == peer_b->size) {
+        peer_b->offset = 0;
+      }
+      buf += chunk;
+    } else {
+      // buffer now empty, no need to advance "buf"
+      assert(chunk == rest);
+      peer_b->offset = 0;
+    }
+    rest -= chunk;
+  } while (rest);
+
+  return size;
+}
+
+static int bio_write(BIO *bio, const char *buf, int num_) {
+  size_t num = num_;
+  size_t rest;
+  struct bio_bio_st *b;
+
+  BIO_clear_retry_flags(bio);
+
+  if (!bio->init || buf == NULL || num == 0) {
+    return 0;
+  }
+
+  b = bio->ptr;
+  assert(b != NULL);
+  assert(b->peer != NULL);
+  assert(b->buf != NULL);
+
+  b->request = 0;
+  if (b->closed) {
+    // we already closed
+    OPENSSL_PUT_ERROR(BIO, BIO_R_BROKEN_PIPE);
+    return -1;
+  }
+
+  assert(b->len <= b->size);
+
+  if (b->len == b->size) {
+    BIO_set_retry_write(bio);  // buffer is full
+    return -1;
+  }
+
+  // we can write
+  if (num > b->size - b->len) {
+    num = b->size - b->len;
+  }
+
+  // now write "num" bytes
+  rest = num;
+
+  assert(rest > 0);
+  // one or two iterations
+  do {
+    size_t write_offset;
+    size_t chunk;
+
+    assert(b->len + rest <= b->size);
+
+    write_offset = b->offset + b->len;
+    if (write_offset >= b->size) {
+      write_offset -= b->size;
+    }
+    // b->buf[write_offset] is the first byte we can write to.
+
+    if (write_offset + rest <= b->size) {
+      chunk = rest;
+    } else {
+      // wrap around ring buffer
+      chunk = b->size - write_offset;
+    }
+
+    OPENSSL_memcpy(b->buf + write_offset, buf, chunk);
+
+    b->len += chunk;
+
+    assert(b->len <= b->size);
+
+    rest -= chunk;
+    buf += chunk;
+  } while (rest);
+
+  return num;
+}
+
+static int bio_make_pair(BIO *bio1, BIO *bio2, size_t writebuf1_len,
+                         size_t writebuf2_len) {
+  struct bio_bio_st *b1, *b2;
+
+  assert(bio1 != NULL);
+  assert(bio2 != NULL);
+
+  b1 = bio1->ptr;
+  b2 = bio2->ptr;
+
+  if (b1->peer != NULL || b2->peer != NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_IN_USE);
+    return 0;
+  }
+
+  if (b1->buf == NULL) {
+    if (writebuf1_len) {
+      b1->size = writebuf1_len;
+    }
+    b1->buf = OPENSSL_malloc(b1->size);
+    if (b1->buf == NULL) {
+      OPENSSL_PUT_ERROR(BIO, ERR_R_MALLOC_FAILURE);
+      return 0;
+    }
+    b1->len = 0;
+    b1->offset = 0;
+  }
+
+  if (b2->buf == NULL) {
+    if (writebuf2_len) {
+      b2->size = writebuf2_len;
+    }
+    b2->buf = OPENSSL_malloc(b2->size);
+    if (b2->buf == NULL) {
+      OPENSSL_PUT_ERROR(BIO, ERR_R_MALLOC_FAILURE);
+      return 0;
+    }
+    b2->len = 0;
+    b2->offset = 0;
+  }
+
+  b1->peer = bio2;
+  b1->closed = 0;
+  b1->request = 0;
+  b2->peer = bio1;
+  b2->closed = 0;
+  b2->request = 0;
+
+  bio1->init = 1;
+  bio2->init = 1;
+
+  return 1;
+}
+
+static long bio_ctrl(BIO *bio, int cmd, long num, void *ptr) {
+  long ret;
+  struct bio_bio_st *b = bio->ptr;
+
+  assert(b != NULL);
+
+  switch (cmd) {
+    // specific CTRL codes
+
+    case BIO_C_GET_WRITE_BUF_SIZE:
+      ret = (long)b->size;
+      break;
+
+    case BIO_C_GET_WRITE_GUARANTEE:
+      // How many bytes can the caller feed to the next write
+      // without having to keep any?
+      if (b->peer == NULL || b->closed) {
+        ret = 0;
+      } else {
+        ret = (long)b->size - b->len;
+      }
+      break;
+
+    case BIO_C_GET_READ_REQUEST:
+      // If the peer unsuccessfully tried to read, how many bytes
+      // were requested?  (As with BIO_CTRL_PENDING, that number
+      // can usually be treated as boolean.)
+      ret = (long)b->request;
+      break;
+
+    case BIO_C_RESET_READ_REQUEST:
+      // Reset request.  (Can be useful after read attempts
+      // at the other side that are meant to be non-blocking,
+      // e.g. when probing SSL_read to see if any data is
+      // available.)
+      b->request = 0;
+      ret = 1;
+      break;
+
+    case BIO_C_SHUTDOWN_WR:
+      // similar to shutdown(..., SHUT_WR)
+      b->closed = 1;
+      ret = 1;
+      break;
+
+    // standard CTRL codes follow
+
+    case BIO_CTRL_GET_CLOSE:
+      ret = bio->shutdown;
+      break;
+
+    case BIO_CTRL_SET_CLOSE:
+      bio->shutdown = (int)num;
+      ret = 1;
+      break;
+
+    case BIO_CTRL_PENDING:
+      if (b->peer != NULL) {
+        struct bio_bio_st *peer_b = b->peer->ptr;
+        ret = (long)peer_b->len;
+      } else {
+        ret = 0;
+      }
+      break;
+
+    case BIO_CTRL_WPENDING:
+      ret = 0;
+      if (b->buf != NULL) {
+        ret = (long)b->len;
+      }
+      break;
+
+    case BIO_CTRL_FLUSH:
+      ret = 1;
+      break;
+
+    case BIO_CTRL_EOF: {
+      BIO *other_bio = ptr;
+
+      if (other_bio) {
+        struct bio_bio_st *other_b = other_bio->ptr;
+        assert(other_b != NULL);
+        ret = other_b->len == 0 && other_b->closed;
+      } else {
+        ret = 1;
+      }
+    } break;
+
+    default:
+      ret = 0;
+  }
+  return ret;
+}
+
+
+static const BIO_METHOD methods_biop = {
+    BIO_TYPE_BIO,    "BIO pair", bio_write, bio_read, NULL /* puts */,
+    NULL /* gets */, bio_ctrl,   bio_new,   bio_free, NULL /* callback_ctrl */,
+};
+
+static const BIO_METHOD *bio_s_bio(void) { return &methods_biop; }
+
+int BIO_new_bio_pair(BIO** bio1_p, size_t writebuf1_len,
+                     BIO** bio2_p, size_t writebuf2_len) {
+  BIO *bio1 = BIO_new(bio_s_bio());
+  BIO *bio2 = BIO_new(bio_s_bio());
+  if (bio1 == NULL || bio2 == NULL ||
+      !bio_make_pair(bio1, bio2, writebuf1_len, writebuf2_len)) {
+    BIO_free(bio1);
+    BIO_free(bio2);
+    *bio1_p = NULL;
+    *bio2_p = NULL;
+    return 0;
+  }
+
+  *bio1_p = bio1;
+  *bio2_p = bio2;
+  return 1;
+}
+
+size_t BIO_ctrl_get_read_request(BIO *bio) {
+  return BIO_ctrl(bio, BIO_C_GET_READ_REQUEST, 0, NULL);
+}
+
+size_t BIO_ctrl_get_write_guarantee(BIO *bio) {
+  return BIO_ctrl(bio, BIO_C_GET_WRITE_GUARANTEE, 0, NULL);
+}
+
+int BIO_shutdown_wr(BIO *bio) {
+  return BIO_ctrl(bio, BIO_C_SHUTDOWN_WR, 0, NULL);
+}

Pods/BoringSSL-GRPC/src/crypto/bio/pair.c.grpc_back

@@ -0,0 +1,488 @@
+/* ====================================================================
+ * Copyright (c) 1998-2003 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    [email protected].
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * ([email protected]).  This product includes software written by Tim
+ * Hudson ([email protected]). */
+
+#include <openssl/bio.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "../internal.h"
+
+
+struct bio_bio_st {
+  BIO *peer;  // NULL if buf == NULL.
+              // If peer != NULL, then peer->ptr is also a bio_bio_st,
+              // and its "peer" member points back to us.
+              // peer != NULL iff init != 0 in the BIO.
+
+  // This is for what we write (i.e. reading uses peer's struct):
+  int closed;     // valid iff peer != NULL
+  size_t len;     // valid iff buf != NULL; 0 if peer == NULL
+  size_t offset;  // valid iff buf != NULL; 0 if len == 0
+  size_t size;
+  uint8_t *buf;  // "size" elements (if != NULL)
+
+  size_t request;  // valid iff peer != NULL; 0 if len != 0,
+                   // otherwise set by peer to number of bytes
+                   // it (unsuccessfully) tried to read,
+                   // never more than buffer space (size-len) warrants.
+};
+
+static int bio_new(BIO *bio) {
+  struct bio_bio_st *b;
+
+  b = OPENSSL_malloc(sizeof *b);
+  if (b == NULL) {
+    return 0;
+  }
+  OPENSSL_memset(b, 0, sizeof(struct bio_bio_st));
+
+  b->size = 17 * 1024;  // enough for one TLS record (just a default)
+  bio->ptr = b;
+  return 1;
+}
+
+static void bio_destroy_pair(BIO *bio) {
+  struct bio_bio_st *b = bio->ptr;
+  BIO *peer_bio;
+  struct bio_bio_st *peer_b;
+
+  if (b == NULL) {
+    return;
+  }
+
+  peer_bio = b->peer;
+  if (peer_bio == NULL) {
+    return;
+  }
+
+  peer_b = peer_bio->ptr;
+
+  assert(peer_b != NULL);
+  assert(peer_b->peer == bio);
+
+  peer_b->peer = NULL;
+  peer_bio->init = 0;
+  assert(peer_b->buf != NULL);
+  peer_b->len = 0;
+  peer_b->offset = 0;
+
+  b->peer = NULL;
+  bio->init = 0;
+  assert(b->buf != NULL);
+  b->len = 0;
+  b->offset = 0;
+}
+
+static int bio_free(BIO *bio) {
+  struct bio_bio_st *b;
+
+  if (bio == NULL) {
+    return 0;
+  }
+  b = bio->ptr;
+
+  assert(b != NULL);
+
+  if (b->peer) {
+    bio_destroy_pair(bio);
+  }
+
+  OPENSSL_free(b->buf);
+  OPENSSL_free(b);
+
+  return 1;
+}
+
+static int bio_read(BIO *bio, char *buf, int size_) {
+  size_t size = size_;
+  size_t rest;
+  struct bio_bio_st *b, *peer_b;
+
+  BIO_clear_retry_flags(bio);
+
+  if (!bio->init) {
+    return 0;
+  }
+
+  b = bio->ptr;
+  assert(b != NULL);
+  assert(b->peer != NULL);
+  peer_b = b->peer->ptr;
+  assert(peer_b != NULL);
+  assert(peer_b->buf != NULL);
+
+  peer_b->request = 0;  // will be set in "retry_read" situation
+
+  if (buf == NULL || size == 0) {
+    return 0;
+  }
+
+  if (peer_b->len == 0) {
+    if (peer_b->closed) {
+      return 0;  // writer has closed, and no data is left
+    } else {
+      BIO_set_retry_read(bio);  // buffer is empty
+      if (size <= peer_b->size) {
+        peer_b->request = size;
+      } else {
+        // don't ask for more than the peer can
+        // deliver in one write
+        peer_b->request = peer_b->size;
+      }
+      return -1;
+    }
+  }
+
+  // we can read
+  if (peer_b->len < size) {
+    size = peer_b->len;
+  }
+
+  // now read "size" bytes
+  rest = size;
+
+  assert(rest > 0);
+  // one or two iterations
+  do {
+    size_t chunk;
+
+    assert(rest <= peer_b->len);
+    if (peer_b->offset + rest <= peer_b->size) {
+      chunk = rest;
+    } else {
+      // wrap around ring buffer
+      chunk = peer_b->size - peer_b->offset;
+    }
+    assert(peer_b->offset + chunk <= peer_b->size);
+
+    OPENSSL_memcpy(buf, peer_b->buf + peer_b->offset, chunk);
+
+    peer_b->len -= chunk;
+    if (peer_b->len) {
+      peer_b->offset += chunk;
+      assert(peer_b->offset <= peer_b->size);
+      if (peer_b->offset == peer_b->size) {
+        peer_b->offset = 0;
+      }
+      buf += chunk;
+    } else {
+      // buffer now empty, no need to advance "buf"
+      assert(chunk == rest);
+      peer_b->offset = 0;
+    }
+    rest -= chunk;
+  } while (rest);
+
+  return size;
+}
+
+static int bio_write(BIO *bio, const char *buf, int num_) {
+  size_t num = num_;
+  size_t rest;
+  struct bio_bio_st *b;
+
+  BIO_clear_retry_flags(bio);
+
+  if (!bio->init || buf == NULL || num == 0) {
+    return 0;
+  }
+
+  b = bio->ptr;
+  assert(b != NULL);
+  assert(b->peer != NULL);
+  assert(b->buf != NULL);
+
+  b->request = 0;
+  if (b->closed) {
+    // we already closed
+    OPENSSL_PUT_ERROR(BIO, BIO_R_BROKEN_PIPE);
+    return -1;
+  }
+
+  assert(b->len <= b->size);
+
+  if (b->len == b->size) {
+    BIO_set_retry_write(bio);  // buffer is full
+    return -1;
+  }
+
+  // we can write
+  if (num > b->size - b->len) {
+    num = b->size - b->len;
+  }
+
+  // now write "num" bytes
+  rest = num;
+
+  assert(rest > 0);
+  // one or two iterations
+  do {
+    size_t write_offset;
+    size_t chunk;
+
+    assert(b->len + rest <= b->size);
+
+    write_offset = b->offset + b->len;
+    if (write_offset >= b->size) {
+      write_offset -= b->size;
+    }
+    // b->buf[write_offset] is the first byte we can write to.
+
+    if (write_offset + rest <= b->size) {
+      chunk = rest;
+    } else {
+      // wrap around ring buffer
+      chunk = b->size - write_offset;
+    }
+
+    OPENSSL_memcpy(b->buf + write_offset, buf, chunk);
+
+    b->len += chunk;
+
+    assert(b->len <= b->size);
+
+    rest -= chunk;
+    buf += chunk;
+  } while (rest);
+
+  return num;
+}
+
+static int bio_make_pair(BIO *bio1, BIO *bio2, size_t writebuf1_len,
+                         size_t writebuf2_len) {
+  struct bio_bio_st *b1, *b2;
+
+  assert(bio1 != NULL);
+  assert(bio2 != NULL);
+
+  b1 = bio1->ptr;
+  b2 = bio2->ptr;
+
+  if (b1->peer != NULL || b2->peer != NULL) {
+    OPENSSL_PUT_ERROR(BIO, BIO_R_IN_USE);
+    return 0;
+  }
+
+  if (b1->buf == NULL) {
+    if (writebuf1_len) {
+      b1->size = writebuf1_len;
+    }
+    b1->buf = OPENSSL_malloc(b1->size);
+    if (b1->buf == NULL) {
+      OPENSSL_PUT_ERROR(BIO, ERR_R_MALLOC_FAILURE);
+      return 0;
+    }
+    b1->len = 0;
+    b1->offset = 0;
+  }
+
+  if (b2->buf == NULL) {
+    if (writebuf2_len) {
+      b2->size = writebuf2_len;
+    }
+    b2->buf = OPENSSL_malloc(b2->size);
+    if (b2->buf == NULL) {
+      OPENSSL_PUT_ERROR(BIO, ERR_R_MALLOC_FAILURE);
+      return 0;
+    }
+    b2->len = 0;
+    b2->offset = 0;
+  }
+
+  b1->peer = bio2;
+  b1->closed = 0;
+  b1->request = 0;
+  b2->peer = bio1;
+  b2->closed = 0;
+  b2->request = 0;
+
+  bio1->init = 1;
+  bio2->init = 1;
+
+  return 1;
+}
+
+static long bio_ctrl(BIO *bio, int cmd, long num, void *ptr) {
+  long ret;
+  struct bio_bio_st *b = bio->ptr;
+
+  assert(b != NULL);
+
+  switch (cmd) {
+    // specific CTRL codes
+
+    case BIO_C_GET_WRITE_BUF_SIZE:
+      ret = (long)b->size;
+      break;
+
+    case BIO_C_GET_WRITE_GUARANTEE:
+      // How many bytes can the caller feed to the next write
+      // without having to keep any?
+      if (b->peer == NULL || b->closed) {
+        ret = 0;
+      } else {
+        ret = (long)b->size - b->len;
+      }
+      break;
+
+    case BIO_C_GET_READ_REQUEST:
+      // If the peer unsuccessfully tried to read, how many bytes
+      // were requested?  (As with BIO_CTRL_PENDING, that number
+      // can usually be treated as boolean.)
+      ret = (long)b->request;
+      break;
+
+    case BIO_C_RESET_READ_REQUEST:
+      // Reset request.  (Can be useful after read attempts
+      // at the other side that are meant to be non-blocking,
+      // e.g. when probing SSL_read to see if any data is
+      // available.)
+      b->request = 0;
+      ret = 1;
+      break;
+
+    case BIO_C_SHUTDOWN_WR:
+      // similar to shutdown(..., SHUT_WR)
+      b->closed = 1;
+      ret = 1;
+      break;
+
+    // standard CTRL codes follow
+
+    case BIO_CTRL_GET_CLOSE:
+      ret = bio->shutdown;
+      break;
+
+    case BIO_CTRL_SET_CLOSE:
+      bio->shutdown = (int)num;
+      ret = 1;
+      break;
+
+    case BIO_CTRL_PENDING:
+      if (b->peer != NULL) {
+        struct bio_bio_st *peer_b = b->peer->ptr;
+        ret = (long)peer_b->len;
+      } else {
+        ret = 0;
+      }
+      break;
+
+    case BIO_CTRL_WPENDING:
+      ret = 0;
+      if (b->buf != NULL) {
+        ret = (long)b->len;
+      }
+      break;
+
+    case BIO_CTRL_FLUSH:
+      ret = 1;
+      break;
+
+    case BIO_CTRL_EOF: {
+      BIO *other_bio = ptr;
+
+      if (other_bio) {
+        struct bio_bio_st *other_b = other_bio->ptr;
+        assert(other_b != NULL);
+        ret = other_b->len == 0 && other_b->closed;
+      } else {
+        ret = 1;
+      }
+    } break;
+
+    default:
+      ret = 0;
+  }
+  return ret;
+}
+
+
+static const BIO_METHOD methods_biop = {
+    BIO_TYPE_BIO,    "BIO pair", bio_write, bio_read, NULL /* puts */,
+    NULL /* gets */, bio_ctrl,   bio_new,   bio_free, NULL /* callback_ctrl */,
+};
+
+static const BIO_METHOD *bio_s_bio(void) { return &methods_biop; }
+
+int BIO_new_bio_pair(BIO** bio1_p, size_t writebuf1_len,
+                     BIO** bio2_p, size_t writebuf2_len) {
+  BIO *bio1 = BIO_new(bio_s_bio());
+  BIO *bio2 = BIO_new(bio_s_bio());
+  if (bio1 == NULL || bio2 == NULL ||
+      !bio_make_pair(bio1, bio2, writebuf1_len, writebuf2_len)) {
+    BIO_free(bio1);
+    BIO_free(bio2);
+    *bio1_p = NULL;
+    *bio2_p = NULL;
+    return 0;
+  }
+
+  *bio1_p = bio1;
+  *bio2_p = bio2;
+  return 1;
+}
+
+size_t BIO_ctrl_get_read_request(BIO *bio) {
+  return BIO_ctrl(bio, BIO_C_GET_READ_REQUEST, 0, NULL);
+}
+
+size_t BIO_ctrl_get_write_guarantee(BIO *bio) {
+  return BIO_ctrl(bio, BIO_C_GET_WRITE_GUARANTEE, 0, NULL);
+}
+
+int BIO_shutdown_wr(BIO *bio) {
+  return BIO_ctrl(bio, BIO_C_SHUTDOWN_WR, 0, NULL);
+}

Pods/BoringSSL-GRPC/src/crypto/bio/printf.c

@@ -0,0 +1,115 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/bio.h>
+
+#include <assert.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+int BIO_printf(BIO *bio, const char *format, ...) {
+  va_list args;
+  char buf[256], *out, out_malloced = 0;
+  int out_len, ret;
+
+  va_start(args, format);
+  out_len = vsnprintf(buf, sizeof(buf), format, args);
+  va_end(args);
+
+#if defined(OPENSSL_WINDOWS)
+  // On Windows, vsnprintf returns -1 rather than the requested length on
+  // truncation
+  if (out_len < 0) {
+    va_start(args, format);
+    out_len = _vscprintf(format, args);
+    va_end(args);
+    assert(out_len >= (int)sizeof(buf));
+  }
+#endif
+
+  if (out_len < 0) {
+    return -1;
+  }
+
+  if ((size_t) out_len >= sizeof(buf)) {
+    const int requested_len = out_len;
+    // The output was truncated. Note that vsnprintf's return value
+    // does not include a trailing NUL, but the buffer must be sized
+    // for it.
+    out = OPENSSL_malloc(requested_len + 1);
+    out_malloced = 1;
+    if (out == NULL) {
+      OPENSSL_PUT_ERROR(BIO, ERR_R_MALLOC_FAILURE);
+      return -1;
+    }
+    va_start(args, format);
+    out_len = vsnprintf(out, requested_len + 1, format, args);
+    va_end(args);
+    assert(out_len == requested_len);
+  } else {
+    out = buf;
+  }
+
+  ret = BIO_write(bio, out, out_len);
+  if (out_malloced) {
+    OPENSSL_free(out);
+  }
+
+  return ret;
+}

Pods/BoringSSL-GRPC/src/crypto/bio/printf.c.grpc_back

@@ -0,0 +1,115 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/bio.h>
+
+#include <assert.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+int BIO_printf(BIO *bio, const char *format, ...) {
+  va_list args;
+  char buf[256], *out, out_malloced = 0;
+  int out_len, ret;
+
+  va_start(args, format);
+  out_len = vsnprintf(buf, sizeof(buf), format, args);
+  va_end(args);
+
+#if defined(OPENSSL_WINDOWS)
+  // On Windows, vsnprintf returns -1 rather than the requested length on
+  // truncation
+  if (out_len < 0) {
+    va_start(args, format);
+    out_len = _vscprintf(format, args);
+    va_end(args);
+    assert(out_len >= (int)sizeof(buf));
+  }
+#endif
+
+  if (out_len < 0) {
+    return -1;
+  }
+
+  if ((size_t) out_len >= sizeof(buf)) {
+    const int requested_len = out_len;
+    // The output was truncated. Note that vsnprintf's return value
+    // does not include a trailing NUL, but the buffer must be sized
+    // for it.
+    out = OPENSSL_malloc(requested_len + 1);
+    out_malloced = 1;
+    if (out == NULL) {
+      OPENSSL_PUT_ERROR(BIO, ERR_R_MALLOC_FAILURE);
+      return -1;
+    }
+    va_start(args, format);
+    out_len = vsnprintf(out, requested_len + 1, format, args);
+    va_end(args);
+    assert(out_len == requested_len);
+  } else {
+    out = buf;
+  }
+
+  ret = BIO_write(bio, out, out_len);
+  if (out_malloced) {
+    OPENSSL_free(out);
+  }
+
+  return ret;
+}

Pods/BoringSSL-GRPC/src/crypto/bio/socket.c

@@ -0,0 +1,206 @@
+/* crypto/bio/bss_sock.c */
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/bio.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <fcntl.h>
+#include <string.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <unistd.h>
+#else
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <winsock2.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+
+OPENSSL_MSVC_PRAGMA(comment(lib, "Ws2_32.lib"))
+#endif
+
+#include "internal.h"
+
+
+#if !defined(OPENSSL_WINDOWS)
+static int closesocket(int sock) {
+  return close(sock);
+}
+#endif
+
+static int sock_new(BIO *bio) {
+  bio->init = 0;
+  bio->num = 0;
+  bio->ptr = NULL;
+  bio->flags = 0;
+  return 1;
+}
+
+static int sock_free(BIO *bio) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->shutdown) {
+    if (bio->init) {
+      closesocket(bio->num);
+    }
+    bio->init = 0;
+    bio->flags = 0;
+  }
+  return 1;
+}
+
+static int sock_read(BIO *b, char *out, int outl) {
+  int ret = 0;
+
+  if (out == NULL) {
+    return 0;
+  }
+
+  bio_clear_socket_error();
+#if defined(OPENSSL_WINDOWS)
+  ret = recv(b->num, out, outl, 0);
+#else
+  ret = read(b->num, out, outl);
+#endif
+  BIO_clear_retry_flags(b);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_read(b);
+    }
+  }
+  return ret;
+}
+
+static int sock_write(BIO *b, const char *in, int inl) {
+  int ret;
+
+  bio_clear_socket_error();
+#if defined(OPENSSL_WINDOWS)
+  ret = send(b->num, in, inl, 0);
+#else
+  ret = write(b->num, in, inl);
+#endif
+  BIO_clear_retry_flags(b);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_write(b);
+    }
+  }
+  return ret;
+}
+
+static long sock_ctrl(BIO *b, int cmd, long num, void *ptr) {
+  long ret = 1;
+  int *ip;
+
+  switch (cmd) {
+    case BIO_C_SET_FD:
+      sock_free(b);
+      b->num = *((int *)ptr);
+      b->shutdown = (int)num;
+      b->init = 1;
+      break;
+    case BIO_C_GET_FD:
+      if (b->init) {
+        ip = (int *)ptr;
+        if (ip != NULL) {
+          *ip = b->num;
+        }
+        ret = b->num;
+      } else {
+        ret = -1;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = b->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      b->shutdown = (int)num;
+      break;
+    case BIO_CTRL_FLUSH:
+      ret = 1;
+      break;
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+static const BIO_METHOD methods_sockp = {
+    BIO_TYPE_SOCKET, "socket",
+    sock_write,      sock_read,
+    NULL /* puts */, NULL /* gets, */,
+    sock_ctrl,       sock_new,
+    sock_free,       NULL /* callback_ctrl */,
+};
+
+const BIO_METHOD *BIO_s_socket(void) { return &methods_sockp; }
+
+BIO *BIO_new_socket(int fd, int close_flag) {
+  BIO *ret;
+
+  ret = BIO_new(BIO_s_socket());
+  if (ret == NULL) {
+    return NULL;
+  }
+  BIO_set_fd(ret, fd, close_flag);
+  return ret;
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bio/socket.c.grpc_back

@@ -0,0 +1,206 @@
+/* crypto/bio/bss_sock.c */
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/bio.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <fcntl.h>
+#include <string.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <unistd.h>
+#else
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <winsock2.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+
+OPENSSL_MSVC_PRAGMA(comment(lib, "Ws2_32.lib"))
+#endif
+
+#include "internal.h"
+
+
+#if !defined(OPENSSL_WINDOWS)
+static int closesocket(int sock) {
+  return close(sock);
+}
+#endif
+
+static int sock_new(BIO *bio) {
+  bio->init = 0;
+  bio->num = 0;
+  bio->ptr = NULL;
+  bio->flags = 0;
+  return 1;
+}
+
+static int sock_free(BIO *bio) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (bio->shutdown) {
+    if (bio->init) {
+      closesocket(bio->num);
+    }
+    bio->init = 0;
+    bio->flags = 0;
+  }
+  return 1;
+}
+
+static int sock_read(BIO *b, char *out, int outl) {
+  int ret = 0;
+
+  if (out == NULL) {
+    return 0;
+  }
+
+  bio_clear_socket_error();
+#if defined(OPENSSL_WINDOWS)
+  ret = recv(b->num, out, outl, 0);
+#else
+  ret = read(b->num, out, outl);
+#endif
+  BIO_clear_retry_flags(b);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_read(b);
+    }
+  }
+  return ret;
+}
+
+static int sock_write(BIO *b, const char *in, int inl) {
+  int ret;
+
+  bio_clear_socket_error();
+#if defined(OPENSSL_WINDOWS)
+  ret = send(b->num, in, inl, 0);
+#else
+  ret = write(b->num, in, inl);
+#endif
+  BIO_clear_retry_flags(b);
+  if (ret <= 0) {
+    if (bio_fd_should_retry(ret)) {
+      BIO_set_retry_write(b);
+    }
+  }
+  return ret;
+}
+
+static long sock_ctrl(BIO *b, int cmd, long num, void *ptr) {
+  long ret = 1;
+  int *ip;
+
+  switch (cmd) {
+    case BIO_C_SET_FD:
+      sock_free(b);
+      b->num = *((int *)ptr);
+      b->shutdown = (int)num;
+      b->init = 1;
+      break;
+    case BIO_C_GET_FD:
+      if (b->init) {
+        ip = (int *)ptr;
+        if (ip != NULL) {
+          *ip = b->num;
+        }
+        ret = b->num;
+      } else {
+        ret = -1;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = b->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      b->shutdown = (int)num;
+      break;
+    case BIO_CTRL_FLUSH:
+      ret = 1;
+      break;
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+static const BIO_METHOD methods_sockp = {
+    BIO_TYPE_SOCKET, "socket",
+    sock_write,      sock_read,
+    NULL /* puts */, NULL /* gets, */,
+    sock_ctrl,       sock_new,
+    sock_free,       NULL /* callback_ctrl */,
+};
+
+const BIO_METHOD *BIO_s_socket(void) { return &methods_sockp; }
+
+BIO *BIO_new_socket(int fd, int close_flag) {
+  BIO *ret;
+
+  ret = BIO_new(BIO_s_socket());
+  if (ret == NULL) {
+    return NULL;
+  }
+  BIO_set_fd(ret, fd, close_flag);
+  return ret;
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bio/socket_helper.c

@@ -0,0 +1,118 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200112L
+
+#include <openssl_grpc/bio.h>
+#include <openssl_grpc/err.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <fcntl.h>
+#include <string.h>
+#include <sys/types.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <netdb.h>
+#include <unistd.h>
+#else
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <winsock2.h>
+#include <ws2tcpip.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+#endif
+
+#include "internal.h"
+#include "../internal.h"
+
+
+int bio_ip_and_port_to_socket_and_addr(int *out_sock,
+                                       struct sockaddr_storage *out_addr,
+                                       socklen_t *out_addr_length,
+                                       const char *hostname,
+                                       const char *port_str) {
+  struct addrinfo hint, *result, *cur;
+  int ret;
+
+  *out_sock = -1;
+
+  OPENSSL_memset(&hint, 0, sizeof(hint));
+  hint.ai_family = AF_UNSPEC;
+  hint.ai_socktype = SOCK_STREAM;
+
+  ret = getaddrinfo(hostname, port_str, &hint, &result);
+  if (ret != 0) {
+    OPENSSL_PUT_ERROR(SYS, 0);
+    ERR_add_error_data(1, gai_strerror(ret));
+    return 0;
+  }
+
+  ret = 0;
+
+  for (cur = result; cur; cur = cur->ai_next) {
+    if ((size_t) cur->ai_addrlen > sizeof(struct sockaddr_storage)) {
+      continue;
+    }
+    OPENSSL_memset(out_addr, 0, sizeof(struct sockaddr_storage));
+    OPENSSL_memcpy(out_addr, cur->ai_addr, cur->ai_addrlen);
+    *out_addr_length = cur->ai_addrlen;
+
+    *out_sock = socket(cur->ai_family, cur->ai_socktype, cur->ai_protocol);
+    if (*out_sock < 0) {
+      OPENSSL_PUT_SYSTEM_ERROR();
+      goto out;
+    }
+
+    ret = 1;
+    break;
+  }
+
+out:
+  freeaddrinfo(result);
+  return ret;
+}
+
+int bio_socket_nbio(int sock, int on) {
+#if defined(OPENSSL_WINDOWS)
+  u_long arg = on;
+
+  return 0 == ioctlsocket(sock, FIONBIO, &arg);
+#else
+  int flags = fcntl(sock, F_GETFL, 0);
+  if (flags < 0) {
+    return 0;
+  }
+  if (!on) {
+    flags &= ~O_NONBLOCK;
+  } else {
+    flags |= O_NONBLOCK;
+  }
+  return fcntl(sock, F_SETFL, flags) == 0;
+#endif
+}
+
+void bio_clear_socket_error(void) {}
+
+int bio_sock_error(int sock) {
+  int error;
+  socklen_t error_size = sizeof(error);
+
+  if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &error_size) < 0) {
+    return 1;
+  }
+  return error;
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bio/socket_helper.c.grpc_back

@@ -0,0 +1,118 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200112L
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+
+#if !defined(OPENSSL_TRUSTY)
+
+#include <fcntl.h>
+#include <string.h>
+#include <sys/types.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <netdb.h>
+#include <unistd.h>
+#else
+OPENSSL_MSVC_PRAGMA(warning(push, 3))
+#include <winsock2.h>
+#include <ws2tcpip.h>
+OPENSSL_MSVC_PRAGMA(warning(pop))
+#endif
+
+#include "internal.h"
+#include "../internal.h"
+
+
+int bio_ip_and_port_to_socket_and_addr(int *out_sock,
+                                       struct sockaddr_storage *out_addr,
+                                       socklen_t *out_addr_length,
+                                       const char *hostname,
+                                       const char *port_str) {
+  struct addrinfo hint, *result, *cur;
+  int ret;
+
+  *out_sock = -1;
+
+  OPENSSL_memset(&hint, 0, sizeof(hint));
+  hint.ai_family = AF_UNSPEC;
+  hint.ai_socktype = SOCK_STREAM;
+
+  ret = getaddrinfo(hostname, port_str, &hint, &result);
+  if (ret != 0) {
+    OPENSSL_PUT_ERROR(SYS, 0);
+    ERR_add_error_data(1, gai_strerror(ret));
+    return 0;
+  }
+
+  ret = 0;
+
+  for (cur = result; cur; cur = cur->ai_next) {
+    if ((size_t) cur->ai_addrlen > sizeof(struct sockaddr_storage)) {
+      continue;
+    }
+    OPENSSL_memset(out_addr, 0, sizeof(struct sockaddr_storage));
+    OPENSSL_memcpy(out_addr, cur->ai_addr, cur->ai_addrlen);
+    *out_addr_length = cur->ai_addrlen;
+
+    *out_sock = socket(cur->ai_family, cur->ai_socktype, cur->ai_protocol);
+    if (*out_sock < 0) {
+      OPENSSL_PUT_SYSTEM_ERROR();
+      goto out;
+    }
+
+    ret = 1;
+    break;
+  }
+
+out:
+  freeaddrinfo(result);
+  return ret;
+}
+
+int bio_socket_nbio(int sock, int on) {
+#if defined(OPENSSL_WINDOWS)
+  u_long arg = on;
+
+  return 0 == ioctlsocket(sock, FIONBIO, &arg);
+#else
+  int flags = fcntl(sock, F_GETFL, 0);
+  if (flags < 0) {
+    return 0;
+  }
+  if (!on) {
+    flags &= ~O_NONBLOCK;
+  } else {
+    flags |= O_NONBLOCK;
+  }
+  return fcntl(sock, F_SETFL, flags) == 0;
+#endif
+}
+
+void bio_clear_socket_error(void) {}
+
+int bio_sock_error(int sock) {
+  int error;
+  socklen_t error_size = sizeof(error);
+
+  if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &error_size) < 0) {
+    return 1;
+  }
+  return error;
+}
+
+#endif  // OPENSSL_TRUSTY

Pods/BoringSSL-GRPC/src/crypto/bn_extra/bn_asn1.c

@@ -0,0 +1,64 @@
+/* Copyright (c) 2015, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl_grpc/bn.h>
+
+#include <openssl_grpc/bytestring.h>
+#include <openssl_grpc/err.h>
+
+
+int BN_parse_asn1_unsigned(CBS *cbs, BIGNUM *ret) {
+  CBS child;
+  if (!CBS_get_asn1(cbs, &child, CBS_ASN1_INTEGER) ||
+      CBS_len(&child) == 0) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
+    return 0;
+  }
+
+  if (CBS_data(&child)[0] & 0x80) {
+    OPENSSL_PUT_ERROR(BN, BN_R_NEGATIVE_NUMBER);
+    return 0;
+  }
+
+  // INTEGERs must be minimal.
+  if (CBS_data(&child)[0] == 0x00 &&
+      CBS_len(&child) > 1 &&
+      !(CBS_data(&child)[1] & 0x80)) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
+    return 0;
+  }
+
+  return BN_bin2bn(CBS_data(&child), CBS_len(&child), ret) != NULL;
+}
+
+int BN_marshal_asn1(CBB *cbb, const BIGNUM *bn) {
+  // Negative numbers are unsupported.
+  if (BN_is_negative(bn)) {
+    OPENSSL_PUT_ERROR(BN, BN_R_NEGATIVE_NUMBER);
+    return 0;
+  }
+
+  CBB child;
+  if (!CBB_add_asn1(cbb, &child, CBS_ASN1_INTEGER) ||
+      // The number must be padded with a leading zero if the high bit would
+      // otherwise be set or if |bn| is zero.
+      (BN_num_bits(bn) % 8 == 0 && !CBB_add_u8(&child, 0x00)) ||
+      !BN_bn2cbb_padded(&child, BN_num_bytes(bn), bn) ||
+      !CBB_flush(cbb)) {
+    OPENSSL_PUT_ERROR(BN, BN_R_ENCODE_ERROR);
+    return 0;
+  }
+
+  return 1;
+}

Pods/BoringSSL-GRPC/src/crypto/bn_extra/bn_asn1.c.grpc_back

@@ -0,0 +1,64 @@
+/* Copyright (c) 2015, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/bn.h>
+
+#include <openssl/bytestring.h>
+#include <openssl/err.h>
+
+
+int BN_parse_asn1_unsigned(CBS *cbs, BIGNUM *ret) {
+  CBS child;
+  if (!CBS_get_asn1(cbs, &child, CBS_ASN1_INTEGER) ||
+      CBS_len(&child) == 0) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
+    return 0;
+  }
+
+  if (CBS_data(&child)[0] & 0x80) {
+    OPENSSL_PUT_ERROR(BN, BN_R_NEGATIVE_NUMBER);
+    return 0;
+  }
+
+  // INTEGERs must be minimal.
+  if (CBS_data(&child)[0] == 0x00 &&
+      CBS_len(&child) > 1 &&
+      !(CBS_data(&child)[1] & 0x80)) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
+    return 0;
+  }
+
+  return BN_bin2bn(CBS_data(&child), CBS_len(&child), ret) != NULL;
+}
+
+int BN_marshal_asn1(CBB *cbb, const BIGNUM *bn) {
+  // Negative numbers are unsupported.
+  if (BN_is_negative(bn)) {
+    OPENSSL_PUT_ERROR(BN, BN_R_NEGATIVE_NUMBER);
+    return 0;
+  }
+
+  CBB child;
+  if (!CBB_add_asn1(cbb, &child, CBS_ASN1_INTEGER) ||
+      // The number must be padded with a leading zero if the high bit would
+      // otherwise be set or if |bn| is zero.
+      (BN_num_bits(bn) % 8 == 0 && !CBB_add_u8(&child, 0x00)) ||
+      !BN_bn2cbb_padded(&child, BN_num_bytes(bn), bn) ||
+      !CBB_flush(cbb)) {
+    OPENSSL_PUT_ERROR(BN, BN_R_ENCODE_ERROR);
+    return 0;
+  }
+
+  return 1;
+}

Pods/BoringSSL-GRPC/src/crypto/bn_extra/convert.c

@@ -0,0 +1,470 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/bn.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdio.h>
+
+#include <openssl_grpc/bio.h>
+#include <openssl_grpc/bytestring.h>
+#include <openssl_grpc/err.h>
+#include <openssl_grpc/mem.h>
+
+#include "../fipsmodule/bn/internal.h"
+
+
+int BN_bn2cbb_padded(CBB *out, size_t len, const BIGNUM *in) {
+  uint8_t *ptr;
+  return CBB_add_space(out, &ptr, len) && BN_bn2bin_padded(ptr, len, in);
+}
+
+static const char hextable[] = "0123456789abcdef";
+
+char *BN_bn2hex(const BIGNUM *bn) {
+  int width = bn_minimal_width(bn);
+  char *buf = OPENSSL_malloc(1 /* leading '-' */ + 1 /* zero is non-empty */ +
+                             width * BN_BYTES * 2 + 1 /* trailing NUL */);
+  if (buf == NULL) {
+    OPENSSL_PUT_ERROR(BN, ERR_R_MALLOC_FAILURE);
+    return NULL;
+  }
+
+  char *p = buf;
+  if (bn->neg) {
+    *(p++) = '-';
+  }
+
+  if (BN_is_zero(bn)) {
+    *(p++) = '0';
+  }
+
+  int z = 0;
+  for (int i = width - 1; i >= 0; i--) {
+    for (int j = BN_BITS2 - 8; j >= 0; j -= 8) {
+      // strip leading zeros
+      int v = ((int)(bn->d[i] >> (long)j)) & 0xff;
+      if (z || v != 0) {
+        *(p++) = hextable[v >> 4];
+        *(p++) = hextable[v & 0x0f];
+        z = 1;
+      }
+    }
+  }
+  *p = '\0';
+
+  return buf;
+}
+
+// decode_hex decodes |in_len| bytes of hex data from |in| and updates |bn|.
+static int decode_hex(BIGNUM *bn, const char *in, int in_len) {
+  if (in_len > INT_MAX/4) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BIGNUM_TOO_LONG);
+    return 0;
+  }
+  // |in_len| is the number of hex digits.
+  if (!bn_expand(bn, in_len * 4)) {
+    return 0;
+  }
+
+  int i = 0;
+  while (in_len > 0) {
+    // Decode one |BN_ULONG| at a time.
+    int todo = BN_BYTES * 2;
+    if (todo > in_len) {
+      todo = in_len;
+    }
+
+    BN_ULONG word = 0;
+    int j;
+    for (j = todo; j > 0; j--) {
+      char c = in[in_len - j];
+
+      BN_ULONG hex;
+      if (c >= '0' && c <= '9') {
+        hex = c - '0';
+      } else if (c >= 'a' && c <= 'f') {
+        hex = c - 'a' + 10;
+      } else if (c >= 'A' && c <= 'F') {
+        hex = c - 'A' + 10;
+      } else {
+        hex = 0;
+        // This shouldn't happen. The caller checks |isxdigit|.
+        assert(0);
+      }
+      word = (word << 4) | hex;
+    }
+
+    bn->d[i++] = word;
+    in_len -= todo;
+  }
+  assert(i <= bn->dmax);
+  bn->width = i;
+  return 1;
+}
+
+// decode_dec decodes |in_len| bytes of decimal data from |in| and updates |bn|.
+static int decode_dec(BIGNUM *bn, const char *in, int in_len) {
+  int i, j;
+  BN_ULONG l = 0;
+
+  // Decode |BN_DEC_NUM| digits at a time.
+  j = BN_DEC_NUM - (in_len % BN_DEC_NUM);
+  if (j == BN_DEC_NUM) {
+    j = 0;
+  }
+  l = 0;
+  for (i = 0; i < in_len; i++) {
+    l *= 10;
+    l += in[i] - '0';
+    if (++j == BN_DEC_NUM) {
+      if (!BN_mul_word(bn, BN_DEC_CONV) ||
+          !BN_add_word(bn, l)) {
+        return 0;
+      }
+      l = 0;
+      j = 0;
+    }
+  }
+  return 1;
+}
+
+typedef int (*decode_func) (BIGNUM *bn, const char *in, int in_len);
+typedef int (*char_test_func) (int c);
+
+static int bn_x2bn(BIGNUM **outp, const char *in, decode_func decode, char_test_func want_char) {
+  BIGNUM *ret = NULL;
+  int neg = 0, i;
+  int num;
+
+  if (in == NULL || *in == 0) {
+    return 0;
+  }
+
+  if (*in == '-') {
+    neg = 1;
+    in++;
+  }
+
+  for (i = 0; want_char((unsigned char)in[i]) && i + neg < INT_MAX; i++) {}
+
+  num = i + neg;
+  if (outp == NULL) {
+    return num;
+  }
+
+  // in is the start of the hex digits, and it is 'i' long
+  if (*outp == NULL) {
+    ret = BN_new();
+    if (ret == NULL) {
+      return 0;
+    }
+  } else {
+    ret = *outp;
+    BN_zero(ret);
+  }
+
+  if (!decode(ret, in, i)) {
+    goto err;
+  }
+
+  bn_set_minimal_width(ret);
+  if (!BN_is_zero(ret)) {
+    ret->neg = neg;
+  }
+
+  *outp = ret;
+  return num;
+
+err:
+  if (*outp == NULL) {
+    BN_free(ret);
+  }
+
+  return 0;
+}
+
+int BN_hex2bn(BIGNUM **outp, const char *in) {
+  return bn_x2bn(outp, in, decode_hex, isxdigit);
+}
+
+char *BN_bn2dec(const BIGNUM *a) {
+  // It is easier to print strings little-endian, so we assemble it in reverse
+  // and fix at the end.
+  BIGNUM *copy = NULL;
+  CBB cbb;
+  if (!CBB_init(&cbb, 16) ||
+      !CBB_add_u8(&cbb, 0 /* trailing NUL */)) {
+    goto cbb_err;
+  }
+
+  if (BN_is_zero(a)) {
+    if (!CBB_add_u8(&cbb, '0')) {
+      goto cbb_err;
+    }
+  } else {
+    copy = BN_dup(a);
+    if (copy == NULL) {
+      goto err;
+    }
+
+    while (!BN_is_zero(copy)) {
+      BN_ULONG word = BN_div_word(copy, BN_DEC_CONV);
+      if (word == (BN_ULONG)-1) {
+        goto err;
+      }
+
+      const int add_leading_zeros = !BN_is_zero(copy);
+      for (int i = 0; i < BN_DEC_NUM && (add_leading_zeros || word != 0); i++) {
+        if (!CBB_add_u8(&cbb, '0' + word % 10)) {
+          goto cbb_err;
+        }
+        word /= 10;
+      }
+      assert(word == 0);
+    }
+  }
+
+  if (BN_is_negative(a) &&
+      !CBB_add_u8(&cbb, '-')) {
+    goto cbb_err;
+  }
+
+  uint8_t *data;
+  size_t len;
+  if (!CBB_finish(&cbb, &data, &len)) {
+    goto cbb_err;
+  }
+
+  // Reverse the buffer.
+  for (size_t i = 0; i < len/2; i++) {
+    uint8_t tmp = data[i];
+    data[i] = data[len - 1 - i];
+    data[len - 1 - i] = tmp;
+  }
+
+  BN_free(copy);
+  return (char *)data;
+
+cbb_err:
+  OPENSSL_PUT_ERROR(BN, ERR_R_MALLOC_FAILURE);
+err:
+  BN_free(copy);
+  CBB_cleanup(&cbb);
+  return NULL;
+}
+
+int BN_dec2bn(BIGNUM **outp, const char *in) {
+  return bn_x2bn(outp, in, decode_dec, isdigit);
+}
+
+int BN_asc2bn(BIGNUM **outp, const char *in) {
+  const char *const orig_in = in;
+  if (*in == '-') {
+    in++;
+  }
+
+  if (in[0] == '0' && (in[1] == 'X' || in[1] == 'x')) {
+    if (!BN_hex2bn(outp, in+2)) {
+      return 0;
+    }
+  } else {
+    if (!BN_dec2bn(outp, in)) {
+      return 0;
+    }
+  }
+
+  if (*orig_in == '-' && !BN_is_zero(*outp)) {
+    (*outp)->neg = 1;
+  }
+
+  return 1;
+}
+
+int BN_print(BIO *bp, const BIGNUM *a) {
+  int i, j, v, z = 0;
+  int ret = 0;
+
+  if (a->neg && BIO_write(bp, "-", 1) != 1) {
+    goto end;
+  }
+
+  if (BN_is_zero(a) && BIO_write(bp, "0", 1) != 1) {
+    goto end;
+  }
+
+  for (i = bn_minimal_width(a) - 1; i >= 0; i--) {
+    for (j = BN_BITS2 - 4; j >= 0; j -= 4) {
+      // strip leading zeros
+      v = ((int)(a->d[i] >> (long)j)) & 0x0f;
+      if (z || v != 0) {
+        if (BIO_write(bp, &hextable[v], 1) != 1) {
+          goto end;
+        }
+        z = 1;
+      }
+    }
+  }
+  ret = 1;
+
+end:
+  return ret;
+}
+
+int BN_print_fp(FILE *fp, const BIGNUM *a) {
+  BIO *b = BIO_new_fp(fp, BIO_NOCLOSE);
+  if (b == NULL) {
+    return 0;
+  }
+
+  int ret = BN_print(b, a);
+  BIO_free(b);
+  return ret;
+}
+
+
+size_t BN_bn2mpi(const BIGNUM *in, uint8_t *out) {
+  const size_t bits = BN_num_bits(in);
+  const size_t bytes = (bits + 7) / 8;
+  // If the number of bits is a multiple of 8, i.e. if the MSB is set,
+  // prefix with a zero byte.
+  int extend = 0;
+  if (bytes != 0 && (bits & 0x07) == 0) {
+    extend = 1;
+  }
+
+  const size_t len = bytes + extend;
+  if (len < bytes ||
+      4 + len < len ||
+      (len & 0xffffffff) != len) {
+    // If we cannot represent the number then we emit zero as the interface
+    // doesn't allow an error to be signalled.
+    if (out) {
+      OPENSSL_memset(out, 0, 4);
+    }
+    return 4;
+  }
+
+  if (out == NULL) {
+    return 4 + len;
+  }
+
+  out[0] = len >> 24;
+  out[1] = len >> 16;
+  out[2] = len >> 8;
+  out[3] = len;
+  if (extend) {
+    out[4] = 0;
+  }
+  BN_bn2bin(in, out + 4 + extend);
+  if (in->neg && len > 0) {
+    out[4] |= 0x80;
+  }
+  return len + 4;
+}
+
+BIGNUM *BN_mpi2bn(const uint8_t *in, size_t len, BIGNUM *out) {
+  if (len < 4) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
+    return NULL;
+  }
+  const size_t in_len = ((size_t)in[0] << 24) |
+                        ((size_t)in[1] << 16) |
+                        ((size_t)in[2] << 8) |
+                        ((size_t)in[3]);
+  if (in_len != len - 4) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
+    return NULL;
+  }
+
+  int out_is_alloced = 0;
+  if (out == NULL) {
+    out = BN_new();
+    if (out == NULL) {
+      OPENSSL_PUT_ERROR(BN, ERR_R_MALLOC_FAILURE);
+      return NULL;
+    }
+    out_is_alloced = 1;
+  }
+
+  if (in_len == 0) {
+    BN_zero(out);
+    return out;
+  }
+
+  in += 4;
+  if (BN_bin2bn(in, in_len, out) == NULL) {
+    if (out_is_alloced) {
+      BN_free(out);
+    }
+    return NULL;
+  }
+  out->neg = ((*in) & 0x80) != 0;
+  if (out->neg) {
+    BN_clear_bit(out, BN_num_bits(out) - 1);
+  }
+  return out;
+}
+
+int BN_bn2binpad(const BIGNUM *in, uint8_t *out, int len) {
+  if (len < 0 ||
+      !BN_bn2bin_padded(out, (size_t)len, in)) {
+    return -1;
+  }
+  return len;
+}

Pods/BoringSSL-GRPC/src/crypto/bn_extra/convert.c.grpc_back

@@ -0,0 +1,470 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/bn.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdio.h>
+
+#include <openssl/bio.h>
+#include <openssl/bytestring.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+#include "../fipsmodule/bn/internal.h"
+
+
+int BN_bn2cbb_padded(CBB *out, size_t len, const BIGNUM *in) {
+  uint8_t *ptr;
+  return CBB_add_space(out, &ptr, len) && BN_bn2bin_padded(ptr, len, in);
+}
+
+static const char hextable[] = "0123456789abcdef";
+
+char *BN_bn2hex(const BIGNUM *bn) {
+  int width = bn_minimal_width(bn);
+  char *buf = OPENSSL_malloc(1 /* leading '-' */ + 1 /* zero is non-empty */ +
+                             width * BN_BYTES * 2 + 1 /* trailing NUL */);
+  if (buf == NULL) {
+    OPENSSL_PUT_ERROR(BN, ERR_R_MALLOC_FAILURE);
+    return NULL;
+  }
+
+  char *p = buf;
+  if (bn->neg) {
+    *(p++) = '-';
+  }
+
+  if (BN_is_zero(bn)) {
+    *(p++) = '0';
+  }
+
+  int z = 0;
+  for (int i = width - 1; i >= 0; i--) {
+    for (int j = BN_BITS2 - 8; j >= 0; j -= 8) {
+      // strip leading zeros
+      int v = ((int)(bn->d[i] >> (long)j)) & 0xff;
+      if (z || v != 0) {
+        *(p++) = hextable[v >> 4];
+        *(p++) = hextable[v & 0x0f];
+        z = 1;
+      }
+    }
+  }
+  *p = '\0';
+
+  return buf;
+}
+
+// decode_hex decodes |in_len| bytes of hex data from |in| and updates |bn|.
+static int decode_hex(BIGNUM *bn, const char *in, int in_len) {
+  if (in_len > INT_MAX/4) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BIGNUM_TOO_LONG);
+    return 0;
+  }
+  // |in_len| is the number of hex digits.
+  if (!bn_expand(bn, in_len * 4)) {
+    return 0;
+  }
+
+  int i = 0;
+  while (in_len > 0) {
+    // Decode one |BN_ULONG| at a time.
+    int todo = BN_BYTES * 2;
+    if (todo > in_len) {
+      todo = in_len;
+    }
+
+    BN_ULONG word = 0;
+    int j;
+    for (j = todo; j > 0; j--) {
+      char c = in[in_len - j];
+
+      BN_ULONG hex;
+      if (c >= '0' && c <= '9') {
+        hex = c - '0';
+      } else if (c >= 'a' && c <= 'f') {
+        hex = c - 'a' + 10;
+      } else if (c >= 'A' && c <= 'F') {
+        hex = c - 'A' + 10;
+      } else {
+        hex = 0;
+        // This shouldn't happen. The caller checks |isxdigit|.
+        assert(0);
+      }
+      word = (word << 4) | hex;
+    }
+
+    bn->d[i++] = word;
+    in_len -= todo;
+  }
+  assert(i <= bn->dmax);
+  bn->width = i;
+  return 1;
+}
+
+// decode_dec decodes |in_len| bytes of decimal data from |in| and updates |bn|.
+static int decode_dec(BIGNUM *bn, const char *in, int in_len) {
+  int i, j;
+  BN_ULONG l = 0;
+
+  // Decode |BN_DEC_NUM| digits at a time.
+  j = BN_DEC_NUM - (in_len % BN_DEC_NUM);
+  if (j == BN_DEC_NUM) {
+    j = 0;
+  }
+  l = 0;
+  for (i = 0; i < in_len; i++) {
+    l *= 10;
+    l += in[i] - '0';
+    if (++j == BN_DEC_NUM) {
+      if (!BN_mul_word(bn, BN_DEC_CONV) ||
+          !BN_add_word(bn, l)) {
+        return 0;
+      }
+      l = 0;
+      j = 0;
+    }
+  }
+  return 1;
+}
+
+typedef int (*decode_func) (BIGNUM *bn, const char *in, int in_len);
+typedef int (*char_test_func) (int c);
+
+static int bn_x2bn(BIGNUM **outp, const char *in, decode_func decode, char_test_func want_char) {
+  BIGNUM *ret = NULL;
+  int neg = 0, i;
+  int num;
+
+  if (in == NULL || *in == 0) {
+    return 0;
+  }
+
+  if (*in == '-') {
+    neg = 1;
+    in++;
+  }
+
+  for (i = 0; want_char((unsigned char)in[i]) && i + neg < INT_MAX; i++) {}
+
+  num = i + neg;
+  if (outp == NULL) {
+    return num;
+  }
+
+  // in is the start of the hex digits, and it is 'i' long
+  if (*outp == NULL) {
+    ret = BN_new();
+    if (ret == NULL) {
+      return 0;
+    }
+  } else {
+    ret = *outp;
+    BN_zero(ret);
+  }
+
+  if (!decode(ret, in, i)) {
+    goto err;
+  }
+
+  bn_set_minimal_width(ret);
+  if (!BN_is_zero(ret)) {
+    ret->neg = neg;
+  }
+
+  *outp = ret;
+  return num;
+
+err:
+  if (*outp == NULL) {
+    BN_free(ret);
+  }
+
+  return 0;
+}
+
+int BN_hex2bn(BIGNUM **outp, const char *in) {
+  return bn_x2bn(outp, in, decode_hex, isxdigit);
+}
+
+char *BN_bn2dec(const BIGNUM *a) {
+  // It is easier to print strings little-endian, so we assemble it in reverse
+  // and fix at the end.
+  BIGNUM *copy = NULL;
+  CBB cbb;
+  if (!CBB_init(&cbb, 16) ||
+      !CBB_add_u8(&cbb, 0 /* trailing NUL */)) {
+    goto cbb_err;
+  }
+
+  if (BN_is_zero(a)) {
+    if (!CBB_add_u8(&cbb, '0')) {
+      goto cbb_err;
+    }
+  } else {
+    copy = BN_dup(a);
+    if (copy == NULL) {
+      goto err;
+    }
+
+    while (!BN_is_zero(copy)) {
+      BN_ULONG word = BN_div_word(copy, BN_DEC_CONV);
+      if (word == (BN_ULONG)-1) {
+        goto err;
+      }
+
+      const int add_leading_zeros = !BN_is_zero(copy);
+      for (int i = 0; i < BN_DEC_NUM && (add_leading_zeros || word != 0); i++) {
+        if (!CBB_add_u8(&cbb, '0' + word % 10)) {
+          goto cbb_err;
+        }
+        word /= 10;
+      }
+      assert(word == 0);
+    }
+  }
+
+  if (BN_is_negative(a) &&
+      !CBB_add_u8(&cbb, '-')) {
+    goto cbb_err;
+  }
+
+  uint8_t *data;
+  size_t len;
+  if (!CBB_finish(&cbb, &data, &len)) {
+    goto cbb_err;
+  }
+
+  // Reverse the buffer.
+  for (size_t i = 0; i < len/2; i++) {
+    uint8_t tmp = data[i];
+    data[i] = data[len - 1 - i];
+    data[len - 1 - i] = tmp;
+  }
+
+  BN_free(copy);
+  return (char *)data;
+
+cbb_err:
+  OPENSSL_PUT_ERROR(BN, ERR_R_MALLOC_FAILURE);
+err:
+  BN_free(copy);
+  CBB_cleanup(&cbb);
+  return NULL;
+}
+
+int BN_dec2bn(BIGNUM **outp, const char *in) {
+  return bn_x2bn(outp, in, decode_dec, isdigit);
+}
+
+int BN_asc2bn(BIGNUM **outp, const char *in) {
+  const char *const orig_in = in;
+  if (*in == '-') {
+    in++;
+  }
+
+  if (in[0] == '0' && (in[1] == 'X' || in[1] == 'x')) {
+    if (!BN_hex2bn(outp, in+2)) {
+      return 0;
+    }
+  } else {
+    if (!BN_dec2bn(outp, in)) {
+      return 0;
+    }
+  }
+
+  if (*orig_in == '-' && !BN_is_zero(*outp)) {
+    (*outp)->neg = 1;
+  }
+
+  return 1;
+}
+
+int BN_print(BIO *bp, const BIGNUM *a) {
+  int i, j, v, z = 0;
+  int ret = 0;
+
+  if (a->neg && BIO_write(bp, "-", 1) != 1) {
+    goto end;
+  }
+
+  if (BN_is_zero(a) && BIO_write(bp, "0", 1) != 1) {
+    goto end;
+  }
+
+  for (i = bn_minimal_width(a) - 1; i >= 0; i--) {
+    for (j = BN_BITS2 - 4; j >= 0; j -= 4) {
+      // strip leading zeros
+      v = ((int)(a->d[i] >> (long)j)) & 0x0f;
+      if (z || v != 0) {
+        if (BIO_write(bp, &hextable[v], 1) != 1) {
+          goto end;
+        }
+        z = 1;
+      }
+    }
+  }
+  ret = 1;
+
+end:
+  return ret;
+}
+
+int BN_print_fp(FILE *fp, const BIGNUM *a) {
+  BIO *b = BIO_new_fp(fp, BIO_NOCLOSE);
+  if (b == NULL) {
+    return 0;
+  }
+
+  int ret = BN_print(b, a);
+  BIO_free(b);
+  return ret;
+}
+
+
+size_t BN_bn2mpi(const BIGNUM *in, uint8_t *out) {
+  const size_t bits = BN_num_bits(in);
+  const size_t bytes = (bits + 7) / 8;
+  // If the number of bits is a multiple of 8, i.e. if the MSB is set,
+  // prefix with a zero byte.
+  int extend = 0;
+  if (bytes != 0 && (bits & 0x07) == 0) {
+    extend = 1;
+  }
+
+  const size_t len = bytes + extend;
+  if (len < bytes ||
+      4 + len < len ||
+      (len & 0xffffffff) != len) {
+    // If we cannot represent the number then we emit zero as the interface
+    // doesn't allow an error to be signalled.
+    if (out) {
+      OPENSSL_memset(out, 0, 4);
+    }
+    return 4;
+  }
+
+  if (out == NULL) {
+    return 4 + len;
+  }
+
+  out[0] = len >> 24;
+  out[1] = len >> 16;
+  out[2] = len >> 8;
+  out[3] = len;
+  if (extend) {
+    out[4] = 0;
+  }
+  BN_bn2bin(in, out + 4 + extend);
+  if (in->neg && len > 0) {
+    out[4] |= 0x80;
+  }
+  return len + 4;
+}
+
+BIGNUM *BN_mpi2bn(const uint8_t *in, size_t len, BIGNUM *out) {
+  if (len < 4) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
+    return NULL;
+  }
+  const size_t in_len = ((size_t)in[0] << 24) |
+                        ((size_t)in[1] << 16) |
+                        ((size_t)in[2] << 8) |
+                        ((size_t)in[3]);
+  if (in_len != len - 4) {
+    OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
+    return NULL;
+  }
+
+  int out_is_alloced = 0;
+  if (out == NULL) {
+    out = BN_new();
+    if (out == NULL) {
+      OPENSSL_PUT_ERROR(BN, ERR_R_MALLOC_FAILURE);
+      return NULL;
+    }
+    out_is_alloced = 1;
+  }
+
+  if (in_len == 0) {
+    BN_zero(out);
+    return out;
+  }
+
+  in += 4;
+  if (BN_bin2bn(in, in_len, out) == NULL) {
+    if (out_is_alloced) {
+      BN_free(out);
+    }
+    return NULL;
+  }
+  out->neg = ((*in) & 0x80) != 0;
+  if (out->neg) {
+    BN_clear_bit(out, BN_num_bits(out) - 1);
+  }
+  return out;
+}
+
+int BN_bn2binpad(const BIGNUM *in, uint8_t *out, int len) {
+  if (len < 0 ||
+      !BN_bn2bin_padded(out, (size_t)len, in)) {
+    return -1;
+  }
+  return len;
+}

Pods/BoringSSL-GRPC/src/crypto/buf/buf.c

@@ -0,0 +1,172 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl_grpc/buf.h>
+
+#include <string.h>
+
+#include <openssl_grpc/mem.h>
+#include <openssl_grpc/err.h>
+
+#include "../internal.h"
+
+
+BUF_MEM *BUF_MEM_new(void) {
+  BUF_MEM *ret;
+
+  ret = OPENSSL_malloc(sizeof(BUF_MEM));
+  if (ret == NULL) {
+    OPENSSL_PUT_ERROR(BUF, ERR_R_MALLOC_FAILURE);
+    return NULL;
+  }
+
+  OPENSSL_memset(ret, 0, sizeof(BUF_MEM));
+  return ret;
+}
+
+void BUF_MEM_free(BUF_MEM *buf) {
+  if (buf == NULL) {
+    return;
+  }
+
+  OPENSSL_free(buf->data);
+  OPENSSL_free(buf);
+}
+
+int BUF_MEM_reserve(BUF_MEM *buf, size_t cap) {
+  if (buf->max >= cap) {
+    return 1;
+  }
+
+  size_t n = cap + 3;
+  if (n < cap) {
+    // overflow
+    OPENSSL_PUT_ERROR(BUF, ERR_R_MALLOC_FAILURE);
+    return 0;
+  }
+  n = n / 3;
+  size_t alloc_size = n * 4;
+  if (alloc_size / 4 != n) {
+    // overflow
+    OPENSSL_PUT_ERROR(BUF, ERR_R_MALLOC_FAILURE);
+    return 0;
+  }
+
+  char *new_buf = OPENSSL_realloc(buf->data, alloc_size);
+  if (new_buf == NULL) {
+    OPENSSL_PUT_ERROR(BUF, ERR_R_MALLOC_FAILURE);
+    return 0;
+  }
+
+  buf->data = new_buf;
+  buf->max = alloc_size;
+  return 1;
+}
+
+size_t BUF_MEM_grow(BUF_MEM *buf, size_t len) {
+  if (!BUF_MEM_reserve(buf, len)) {
+    return 0;
+  }
+  if (buf->length < len) {
+    OPENSSL_memset(&buf->data[buf->length], 0, len - buf->length);
+  }
+  buf->length = len;
+  return len;
+}
+
+size_t BUF_MEM_grow_clean(BUF_MEM *buf, size_t len) {
+  return BUF_MEM_grow(buf, len);
+}
+
+int BUF_MEM_append(BUF_MEM *buf, const void *in, size_t len) {
+  // Work around a C language bug. See https://crbug.com/1019588.
+  if (len == 0) {
+    return 1;
+  }
+  size_t new_len = buf->length + len;
+  if (new_len < len) {
+    OPENSSL_PUT_ERROR(BUF, ERR_R_OVERFLOW);
+    return 0;
+  }
+  if (!BUF_MEM_reserve(buf, new_len)) {
+    return 0;
+  }
+  OPENSSL_memcpy(buf->data + buf->length, in, len);
+  buf->length = new_len;
+  return 1;
+}
+
+char *BUF_strdup(const char *str) { return OPENSSL_strdup(str); }
+
+size_t BUF_strnlen(const char *str, size_t max_len) {
+  return OPENSSL_strnlen(str, max_len);
+}
+
+char *BUF_strndup(const char *str, size_t size) {
+  return OPENSSL_strndup(str, size);
+}
+
+size_t BUF_strlcpy(char *dst, const char *src, size_t dst_size) {
+  return OPENSSL_strlcpy(dst, src, dst_size);
+}
+
+size_t BUF_strlcat(char *dst, const char *src, size_t dst_size) {
+  return OPENSSL_strlcat(dst, src, dst_size);
+}
+
+void *BUF_memdup(const void *data, size_t size) {
+  return OPENSSL_memdup(data, size);
+}

Pods/BoringSSL-GRPC/src/crypto/buf/buf.c.grpc_back

@@ -0,0 +1,172 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/buf.h>
+
+#include <string.h>
+
+#include <openssl/mem.h>
+#include <openssl/err.h>
+
+#include "../internal.h"
+
+
+BUF_MEM *BUF_MEM_new(void) {
+  BUF_MEM *ret;
+
+  ret = OPENSSL_malloc(sizeof(BUF_MEM));
+  if (ret == NULL) {
+    OPENSSL_PUT_ERROR(BUF, ERR_R_MALLOC_FAILURE);
+    return NULL;
+  }
+
+  OPENSSL_memset(ret, 0, sizeof(BUF_MEM));
+  return ret;
+}
+
+void BUF_MEM_free(BUF_MEM *buf) {
+  if (buf == NULL) {
+    return;
+  }
+
+  OPENSSL_free(buf->data);
+  OPENSSL_free(buf);
+}
+
+int BUF_MEM_reserve(BUF_MEM *buf, size_t cap) {
+  if (buf->max >= cap) {
+    return 1;
+  }
+
+  size_t n = cap + 3;
+  if (n < cap) {
+    // overflow
+    OPENSSL_PUT_ERROR(BUF, ERR_R_MALLOC_FAILURE);
+    return 0;
+  }
+  n = n / 3;
+  size_t alloc_size = n * 4;
+  if (alloc_size / 4 != n) {
+    // overflow
+    OPENSSL_PUT_ERROR(BUF, ERR_R_MALLOC_FAILURE);
+    return 0;
+  }
+
+  char *new_buf = OPENSSL_realloc(buf->data, alloc_size);
+  if (new_buf == NULL) {
+    OPENSSL_PUT_ERROR(BUF, ERR_R_MALLOC_FAILURE);
+    return 0;
+  }
+
+  buf->data = new_buf;
+  buf->max = alloc_size;
+  return 1;
+}
+
+size_t BUF_MEM_grow(BUF_MEM *buf, size_t len) {
+  if (!BUF_MEM_reserve(buf, len)) {
+    return 0;
+  }
+  if (buf->length < len) {
+    OPENSSL_memset(&buf->data[buf->length], 0, len - buf->length);
+  }
+  buf->length = len;
+  return len;
+}
+
+size_t BUF_MEM_grow_clean(BUF_MEM *buf, size_t len) {
+  return BUF_MEM_grow(buf, len);
+}
+
+int BUF_MEM_append(BUF_MEM *buf, const void *in, size_t len) {
+  // Work around a C language bug. See https://crbug.com/1019588.
+  if (len == 0) {
+    return 1;
+  }
+  size_t new_len = buf->length + len;
+  if (new_len < len) {
+    OPENSSL_PUT_ERROR(BUF, ERR_R_OVERFLOW);
+    return 0;
+  }
+  if (!BUF_MEM_reserve(buf, new_len)) {
+    return 0;
+  }
+  OPENSSL_memcpy(buf->data + buf->length, in, len);
+  buf->length = new_len;
+  return 1;
+}
+
+char *BUF_strdup(const char *str) { return OPENSSL_strdup(str); }
+
+size_t BUF_strnlen(const char *str, size_t max_len) {
+  return OPENSSL_strnlen(str, max_len);
+}
+
+char *BUF_strndup(const char *str, size_t size) {
+  return OPENSSL_strndup(str, size);
+}
+
+size_t BUF_strlcpy(char *dst, const char *src, size_t dst_size) {
+  return OPENSSL_strlcpy(dst, src, dst_size);
+}
+
+size_t BUF_strlcat(char *dst, const char *src, size_t dst_size) {
+  return OPENSSL_strlcat(dst, src, dst_size);
+}
+
+void *BUF_memdup(const void *data, size_t size) {
+  return OPENSSL_memdup(data, size);
+}

Pods/BoringSSL-GRPC/src/crypto/bytestring/asn1_compat.c

@@ -0,0 +1,52 @@
+/* Copyright (c) 2016, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+
+#include <openssl_grpc/bytestring.h>
+
+#include <assert.h>
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/mem.h>
+
+#include "internal.h"
+#include "../internal.h"
+
+
+int CBB_finish_i2d(CBB *cbb, uint8_t **outp) {
+  assert(cbb->base->can_resize);
+
+  uint8_t *der;
+  size_t der_len;
+  if (!CBB_finish(cbb, &der, &der_len)) {
+    CBB_cleanup(cbb);
+    return -1;
+  }
+  if (der_len > INT_MAX) {
+    OPENSSL_free(der);
+    return -1;
+  }
+  if (outp != NULL) {
+    if (*outp == NULL) {
+      *outp = der;
+      der = NULL;
+    } else {
+      OPENSSL_memcpy(*outp, der, der_len);
+      *outp += der_len;
+    }
+  }
+  OPENSSL_free(der);
+  return (int)der_len;
+}

Pods/BoringSSL-GRPC/src/crypto/bytestring/asn1_compat.c.grpc_back

@@ -0,0 +1,52 @@
+/* Copyright (c) 2016, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+
+#include <openssl/bytestring.h>
+
+#include <assert.h>
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/mem.h>
+
+#include "internal.h"
+#include "../internal.h"
+
+
+int CBB_finish_i2d(CBB *cbb, uint8_t **outp) {
+  assert(cbb->base->can_resize);
+
+  uint8_t *der;
+  size_t der_len;
+  if (!CBB_finish(cbb, &der, &der_len)) {
+    CBB_cleanup(cbb);
+    return -1;
+  }
+  if (der_len > INT_MAX) {
+    OPENSSL_free(der);
+    return -1;
+  }
+  if (outp != NULL) {
+    if (*outp == NULL) {
+      *outp = der;
+      der = NULL;
+    } else {
+      OPENSSL_memcpy(*outp, der, der_len);
+      *outp += der_len;
+    }
+  }
+  OPENSSL_free(der);
+  return (int)der_len;
+}

Pods/BoringSSL-GRPC/src/crypto/bytestring/ber.c

@@ -0,0 +1,265 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl_grpc/bytestring.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include "internal.h"
+#include "../internal.h"
+
+
+// kMaxDepth is a just a sanity limit. The code should be such that the length
+// of the input being processes always decreases. None the less, a very large
+// input could otherwise cause the stack to overflow.
+static const unsigned kMaxDepth = 2048;
+
+// is_string_type returns one if |tag| is a string type and zero otherwise. It
+// ignores the constructed bit.
+static int is_string_type(unsigned tag) {
+  switch (tag & ~CBS_ASN1_CONSTRUCTED) {
+    case CBS_ASN1_BITSTRING:
+    case CBS_ASN1_OCTETSTRING:
+    case CBS_ASN1_UTF8STRING:
+    case CBS_ASN1_NUMERICSTRING:
+    case CBS_ASN1_PRINTABLESTRING:
+    case CBS_ASN1_T61STRING:
+    case CBS_ASN1_VIDEOTEXSTRING:
+    case CBS_ASN1_IA5STRING:
+    case CBS_ASN1_GRAPHICSTRING:
+    case CBS_ASN1_VISIBLESTRING:
+    case CBS_ASN1_GENERALSTRING:
+    case CBS_ASN1_UNIVERSALSTRING:
+    case CBS_ASN1_BMPSTRING:
+      return 1;
+    default:
+      return 0;
+  }
+}
+
+// cbs_find_ber walks an ASN.1 structure in |orig_in| and sets |*ber_found|
+// depending on whether an indefinite length element or constructed string was
+// found. The value of |orig_in| is not changed. It returns one on success (i.e.
+// |*ber_found| was set) and zero on error.
+static int cbs_find_ber(const CBS *orig_in, char *ber_found, unsigned depth) {
+  CBS in;
+
+  if (depth > kMaxDepth) {
+    return 0;
+  }
+
+  CBS_init(&in, CBS_data(orig_in), CBS_len(orig_in));
+  *ber_found = 0;
+
+  while (CBS_len(&in) > 0) {
+    CBS contents;
+    unsigned tag;
+    size_t header_len;
+
+    if (!CBS_get_any_ber_asn1_element(&in, &contents, &tag, &header_len)) {
+      return 0;
+    }
+    if (CBS_len(&contents) == header_len &&
+        header_len > 0 &&
+        CBS_data(&contents)[header_len-1] == 0x80) {
+      // Found an indefinite-length element.
+      *ber_found = 1;
+      return 1;
+    }
+    if (tag & CBS_ASN1_CONSTRUCTED) {
+      if (is_string_type(tag)) {
+        // Constructed strings are only legal in BER and require conversion.
+        *ber_found = 1;
+        return 1;
+      }
+      if (!CBS_skip(&contents, header_len) ||
+          !cbs_find_ber(&contents, ber_found, depth + 1)) {
+        return 0;
+      }
+    }
+  }
+
+  return 1;
+}
+
+// is_eoc returns true if |header_len| and |contents|, as returned by
+// |CBS_get_any_ber_asn1_element|, indicate an "end of contents" (EOC) value.
+static char is_eoc(size_t header_len, CBS *contents) {
+  return header_len == 2 && CBS_len(contents) == 2 &&
+         OPENSSL_memcmp(CBS_data(contents), "\x00\x00", 2) == 0;
+}
+
+// cbs_convert_ber reads BER data from |in| and writes DER data to |out|. If
+// |string_tag| is non-zero, then all elements must match |string_tag| up to the
+// constructed bit and primitive element bodies are written to |out| without
+// element headers. This is used when concatenating the fragments of a
+// constructed string. If |looking_for_eoc| is set then any EOC elements found
+// will cause the function to return after consuming it. It returns one on
+// success and zero on error.
+static int cbs_convert_ber(CBS *in, CBB *out, unsigned string_tag,
+                           char looking_for_eoc, unsigned depth) {
+  assert(!(string_tag & CBS_ASN1_CONSTRUCTED));
+
+  if (depth > kMaxDepth) {
+    return 0;
+  }
+
+  while (CBS_len(in) > 0) {
+    CBS contents;
+    unsigned tag, child_string_tag = string_tag;
+    size_t header_len;
+    CBB *out_contents, out_contents_storage;
+
+    if (!CBS_get_any_ber_asn1_element(in, &contents, &tag, &header_len)) {
+      return 0;
+    }
+
+    if (is_eoc(header_len, &contents)) {
+      return looking_for_eoc;
+    }
+
+    if (string_tag != 0) {
+      // This is part of a constructed string. All elements must match
+      // |string_tag| up to the constructed bit and get appended to |out|
+      // without a child element.
+      if ((tag & ~CBS_ASN1_CONSTRUCTED) != string_tag) {
+        return 0;
+      }
+      out_contents = out;
+    } else {
+      unsigned out_tag = tag;
+      if ((tag & CBS_ASN1_CONSTRUCTED) && is_string_type(tag)) {
+        // If a constructed string, clear the constructed bit and inform
+        // children to concatenate bodies.
+        out_tag &= ~CBS_ASN1_CONSTRUCTED;
+        child_string_tag = out_tag;
+      }
+      if (!CBB_add_asn1(out, &out_contents_storage, out_tag)) {
+        return 0;
+      }
+      out_contents = &out_contents_storage;
+    }
+
+    if (CBS_len(&contents) == header_len && header_len > 0 &&
+        CBS_data(&contents)[header_len - 1] == 0x80) {
+      // This is an indefinite length element.
+      if (!cbs_convert_ber(in, out_contents, child_string_tag,
+                           1 /* looking for eoc */, depth + 1) ||
+          !CBB_flush(out)) {
+        return 0;
+      }
+      continue;
+    }
+
+    if (!CBS_skip(&contents, header_len)) {
+      return 0;
+    }
+
+    if (tag & CBS_ASN1_CONSTRUCTED) {
+      // Recurse into children.
+      if (!cbs_convert_ber(&contents, out_contents, child_string_tag,
+                           0 /* not looking for eoc */, depth + 1)) {
+        return 0;
+      }
+    } else {
+      // Copy primitive contents as-is.
+      if (!CBB_add_bytes(out_contents, CBS_data(&contents),
+                         CBS_len(&contents))) {
+        return 0;
+      }
+    }
+
+    if (!CBB_flush(out)) {
+      return 0;
+    }
+  }
+
+  return looking_for_eoc == 0;
+}
+
+int CBS_asn1_ber_to_der(CBS *in, CBS *out, uint8_t **out_storage) {
+  CBB cbb;
+
+  // First, do a quick walk to find any indefinite-length elements. Most of the
+  // time we hope that there aren't any and thus we can quickly return.
+  char conversion_needed;
+  if (!cbs_find_ber(in, &conversion_needed, 0)) {
+    return 0;
+  }
+
+  if (!conversion_needed) {
+    if (!CBS_get_any_asn1_element(in, out, NULL, NULL)) {
+      return 0;
+    }
+    *out_storage = NULL;
+    return 1;
+  }
+
+  size_t len;
+  if (!CBB_init(&cbb, CBS_len(in)) ||
+      !cbs_convert_ber(in, &cbb, 0, 0, 0) ||
+      !CBB_finish(&cbb, out_storage, &len)) {
+    CBB_cleanup(&cbb);
+    return 0;
+  }
+
+  CBS_init(out, *out_storage, len);
+  return 1;
+}
+
+int CBS_get_asn1_implicit_string(CBS *in, CBS *out, uint8_t **out_storage,
+                                 unsigned outer_tag, unsigned inner_tag) {
+  assert(!(outer_tag & CBS_ASN1_CONSTRUCTED));
+  assert(!(inner_tag & CBS_ASN1_CONSTRUCTED));
+  assert(is_string_type(inner_tag));
+
+  if (CBS_peek_asn1_tag(in, outer_tag)) {
+    // Normal implicitly-tagged string.
+    *out_storage = NULL;
+    return CBS_get_asn1(in, out, outer_tag);
+  }
+
+  // Otherwise, try to parse an implicitly-tagged constructed string.
+  // |CBS_asn1_ber_to_der| is assumed to have run, so only allow one level deep
+  // of nesting.
+  CBB result;
+  CBS child;
+  if (!CBB_init(&result, CBS_len(in)) ||
+      !CBS_get_asn1(in, &child, outer_tag | CBS_ASN1_CONSTRUCTED)) {
+    goto err;
+  }
+
+  while (CBS_len(&child) > 0) {
+    CBS chunk;
+    if (!CBS_get_asn1(&child, &chunk, inner_tag) ||
+        !CBB_add_bytes(&result, CBS_data(&chunk), CBS_len(&chunk))) {
+      goto err;
+    }
+  }
+
+  uint8_t *data;
+  size_t len;
+  if (!CBB_finish(&result, &data, &len)) {
+    goto err;
+  }
+
+  CBS_init(out, data, len);
+  *out_storage = data;
+  return 1;
+
+err:
+  CBB_cleanup(&result);
+  return 0;
+}

Pods/BoringSSL-GRPC/src/crypto/bytestring/ber.c.grpc_back

@@ -0,0 +1,265 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/bytestring.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include "internal.h"
+#include "../internal.h"
+
+
+// kMaxDepth is a just a sanity limit. The code should be such that the length
+// of the input being processes always decreases. None the less, a very large
+// input could otherwise cause the stack to overflow.
+static const unsigned kMaxDepth = 2048;
+
+// is_string_type returns one if |tag| is a string type and zero otherwise. It
+// ignores the constructed bit.
+static int is_string_type(unsigned tag) {
+  switch (tag & ~CBS_ASN1_CONSTRUCTED) {
+    case CBS_ASN1_BITSTRING:
+    case CBS_ASN1_OCTETSTRING:
+    case CBS_ASN1_UTF8STRING:
+    case CBS_ASN1_NUMERICSTRING:
+    case CBS_ASN1_PRINTABLESTRING:
+    case CBS_ASN1_T61STRING:
+    case CBS_ASN1_VIDEOTEXSTRING:
+    case CBS_ASN1_IA5STRING:
+    case CBS_ASN1_GRAPHICSTRING:
+    case CBS_ASN1_VISIBLESTRING:
+    case CBS_ASN1_GENERALSTRING:
+    case CBS_ASN1_UNIVERSALSTRING:
+    case CBS_ASN1_BMPSTRING:
+      return 1;
+    default:
+      return 0;
+  }
+}
+
+// cbs_find_ber walks an ASN.1 structure in |orig_in| and sets |*ber_found|
+// depending on whether an indefinite length element or constructed string was
+// found. The value of |orig_in| is not changed. It returns one on success (i.e.
+// |*ber_found| was set) and zero on error.
+static int cbs_find_ber(const CBS *orig_in, char *ber_found, unsigned depth) {
+  CBS in;
+
+  if (depth > kMaxDepth) {
+    return 0;
+  }
+
+  CBS_init(&in, CBS_data(orig_in), CBS_len(orig_in));
+  *ber_found = 0;
+
+  while (CBS_len(&in) > 0) {
+    CBS contents;
+    unsigned tag;
+    size_t header_len;
+
+    if (!CBS_get_any_ber_asn1_element(&in, &contents, &tag, &header_len)) {
+      return 0;
+    }
+    if (CBS_len(&contents) == header_len &&
+        header_len > 0 &&
+        CBS_data(&contents)[header_len-1] == 0x80) {
+      // Found an indefinite-length element.
+      *ber_found = 1;
+      return 1;
+    }
+    if (tag & CBS_ASN1_CONSTRUCTED) {
+      if (is_string_type(tag)) {
+        // Constructed strings are only legal in BER and require conversion.
+        *ber_found = 1;
+        return 1;
+      }
+      if (!CBS_skip(&contents, header_len) ||
+          !cbs_find_ber(&contents, ber_found, depth + 1)) {
+        return 0;
+      }
+    }
+  }
+
+  return 1;
+}
+
+// is_eoc returns true if |header_len| and |contents|, as returned by
+// |CBS_get_any_ber_asn1_element|, indicate an "end of contents" (EOC) value.
+static char is_eoc(size_t header_len, CBS *contents) {
+  return header_len == 2 && CBS_len(contents) == 2 &&
+         OPENSSL_memcmp(CBS_data(contents), "\x00\x00", 2) == 0;
+}
+
+// cbs_convert_ber reads BER data from |in| and writes DER data to |out|. If
+// |string_tag| is non-zero, then all elements must match |string_tag| up to the
+// constructed bit and primitive element bodies are written to |out| without
+// element headers. This is used when concatenating the fragments of a
+// constructed string. If |looking_for_eoc| is set then any EOC elements found
+// will cause the function to return after consuming it. It returns one on
+// success and zero on error.
+static int cbs_convert_ber(CBS *in, CBB *out, unsigned string_tag,
+                           char looking_for_eoc, unsigned depth) {
+  assert(!(string_tag & CBS_ASN1_CONSTRUCTED));
+
+  if (depth > kMaxDepth) {
+    return 0;
+  }
+
+  while (CBS_len(in) > 0) {
+    CBS contents;
+    unsigned tag, child_string_tag = string_tag;
+    size_t header_len;
+    CBB *out_contents, out_contents_storage;
+
+    if (!CBS_get_any_ber_asn1_element(in, &contents, &tag, &header_len)) {
+      return 0;
+    }
+
+    if (is_eoc(header_len, &contents)) {
+      return looking_for_eoc;
+    }
+
+    if (string_tag != 0) {
+      // This is part of a constructed string. All elements must match
+      // |string_tag| up to the constructed bit and get appended to |out|
+      // without a child element.
+      if ((tag & ~CBS_ASN1_CONSTRUCTED) != string_tag) {
+        return 0;
+      }
+      out_contents = out;
+    } else {
+      unsigned out_tag = tag;
+      if ((tag & CBS_ASN1_CONSTRUCTED) && is_string_type(tag)) {
+        // If a constructed string, clear the constructed bit and inform
+        // children to concatenate bodies.
+        out_tag &= ~CBS_ASN1_CONSTRUCTED;
+        child_string_tag = out_tag;
+      }
+      if (!CBB_add_asn1(out, &out_contents_storage, out_tag)) {
+        return 0;
+      }
+      out_contents = &out_contents_storage;
+    }
+
+    if (CBS_len(&contents) == header_len && header_len > 0 &&
+        CBS_data(&contents)[header_len - 1] == 0x80) {
+      // This is an indefinite length element.
+      if (!cbs_convert_ber(in, out_contents, child_string_tag,
+                           1 /* looking for eoc */, depth + 1) ||
+          !CBB_flush(out)) {
+        return 0;
+      }
+      continue;
+    }
+
+    if (!CBS_skip(&contents, header_len)) {
+      return 0;
+    }
+
+    if (tag & CBS_ASN1_CONSTRUCTED) {
+      // Recurse into children.
+      if (!cbs_convert_ber(&contents, out_contents, child_string_tag,
+                           0 /* not looking for eoc */, depth + 1)) {
+        return 0;
+      }
+    } else {
+      // Copy primitive contents as-is.
+      if (!CBB_add_bytes(out_contents, CBS_data(&contents),
+                         CBS_len(&contents))) {
+        return 0;
+      }
+    }
+
+    if (!CBB_flush(out)) {
+      return 0;
+    }
+  }
+
+  return looking_for_eoc == 0;
+}
+
+int CBS_asn1_ber_to_der(CBS *in, CBS *out, uint8_t **out_storage) {
+  CBB cbb;
+
+  // First, do a quick walk to find any indefinite-length elements. Most of the
+  // time we hope that there aren't any and thus we can quickly return.
+  char conversion_needed;
+  if (!cbs_find_ber(in, &conversion_needed, 0)) {
+    return 0;
+  }
+
+  if (!conversion_needed) {
+    if (!CBS_get_any_asn1_element(in, out, NULL, NULL)) {
+      return 0;
+    }
+    *out_storage = NULL;
+    return 1;
+  }
+
+  size_t len;
+  if (!CBB_init(&cbb, CBS_len(in)) ||
+      !cbs_convert_ber(in, &cbb, 0, 0, 0) ||
+      !CBB_finish(&cbb, out_storage, &len)) {
+    CBB_cleanup(&cbb);
+    return 0;
+  }
+
+  CBS_init(out, *out_storage, len);
+  return 1;
+}
+
+int CBS_get_asn1_implicit_string(CBS *in, CBS *out, uint8_t **out_storage,
+                                 unsigned outer_tag, unsigned inner_tag) {
+  assert(!(outer_tag & CBS_ASN1_CONSTRUCTED));
+  assert(!(inner_tag & CBS_ASN1_CONSTRUCTED));
+  assert(is_string_type(inner_tag));
+
+  if (CBS_peek_asn1_tag(in, outer_tag)) {
+    // Normal implicitly-tagged string.
+    *out_storage = NULL;
+    return CBS_get_asn1(in, out, outer_tag);
+  }
+
+  // Otherwise, try to parse an implicitly-tagged constructed string.
+  // |CBS_asn1_ber_to_der| is assumed to have run, so only allow one level deep
+  // of nesting.
+  CBB result;
+  CBS child;
+  if (!CBB_init(&result, CBS_len(in)) ||
+      !CBS_get_asn1(in, &child, outer_tag | CBS_ASN1_CONSTRUCTED)) {
+    goto err;
+  }
+
+  while (CBS_len(&child) > 0) {
+    CBS chunk;
+    if (!CBS_get_asn1(&child, &chunk, inner_tag) ||
+        !CBB_add_bytes(&result, CBS_data(&chunk), CBS_len(&chunk))) {
+      goto err;
+    }
+  }
+
+  uint8_t *data;
+  size_t len;
+  if (!CBB_finish(&result, &data, &len)) {
+    goto err;
+  }
+
+  CBS_init(out, data, len);
+  *out_storage = data;
+  return 1;
+
+err:
+  CBB_cleanup(&result);
+  return 0;
+}

Pods/BoringSSL-GRPC/src/crypto/bytestring/cbb.c

@@ -0,0 +1,719 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl_grpc/bytestring.h>
+
+#include <assert.h>
+#include <limits.h>
+#include <string.h>
+
+#include <openssl_grpc/mem.h>
+
+#include "../internal.h"
+
+
+void CBB_zero(CBB *cbb) {
+  OPENSSL_memset(cbb, 0, sizeof(CBB));
+}
+
+static int cbb_init(CBB *cbb, uint8_t *buf, size_t cap) {
+  // This assumes that |cbb| has already been zeroed.
+  struct cbb_buffer_st *base;
+
+  base = OPENSSL_malloc(sizeof(struct cbb_buffer_st));
+  if (base == NULL) {
+    return 0;
+  }
+
+  base->buf = buf;
+  base->len = 0;
+  base->cap = cap;
+  base->can_resize = 1;
+  base->error = 0;
+
+  cbb->base = base;
+  cbb->is_child = 0;
+  return 1;
+}
+
+int CBB_init(CBB *cbb, size_t initial_capacity) {
+  CBB_zero(cbb);
+
+  uint8_t *buf = OPENSSL_malloc(initial_capacity);
+  if (initial_capacity > 0 && buf == NULL) {
+    return 0;
+  }
+
+  if (!cbb_init(cbb, buf, initial_capacity)) {
+    OPENSSL_free(buf);
+    return 0;
+  }
+
+  return 1;
+}
+
+int CBB_init_fixed(CBB *cbb, uint8_t *buf, size_t len) {
+  CBB_zero(cbb);
+
+  if (!cbb_init(cbb, buf, len)) {
+    return 0;
+  }
+
+  cbb->base->can_resize = 0;
+  return 1;
+}
+
+void CBB_cleanup(CBB *cbb) {
+  // Child |CBB|s are non-owning. They are implicitly discarded and should not
+  // be used with |CBB_cleanup| or |ScopedCBB|.
+  assert(!cbb->is_child);
+  if (cbb->is_child) {
+    return;
+  }
+
+  if (cbb->base) {
+    if (cbb->base->can_resize) {
+      OPENSSL_free(cbb->base->buf);
+    }
+    OPENSSL_free(cbb->base);
+  }
+  cbb->base = NULL;
+}
+
+static int cbb_buffer_reserve(struct cbb_buffer_st *base, uint8_t **out,
+                              size_t len) {
+  size_t newlen;
+
+  if (base == NULL) {
+    return 0;
+  }
+
+  newlen = base->len + len;
+  if (newlen < base->len) {
+    // Overflow
+    goto err;
+  }
+
+  if (newlen > base->cap) {
+    size_t newcap = base->cap * 2;
+    uint8_t *newbuf;
+
+    if (!base->can_resize) {
+      goto err;
+    }
+
+    if (newcap < base->cap || newcap < newlen) {
+      newcap = newlen;
+    }
+    newbuf = OPENSSL_realloc(base->buf, newcap);
+    if (newbuf == NULL) {
+      goto err;
+    }
+
+    base->buf = newbuf;
+    base->cap = newcap;
+  }
+
+  if (out) {
+    *out = base->buf + base->len;
+  }
+
+  return 1;
+
+err:
+  base->error = 1;
+  return 0;
+}
+
+static int cbb_buffer_add(struct cbb_buffer_st *base, uint8_t **out,
+                          size_t len) {
+  if (!cbb_buffer_reserve(base, out, len)) {
+    return 0;
+  }
+  // This will not overflow or |cbb_buffer_reserve| would have failed.
+  base->len += len;
+  return 1;
+}
+
+static int cbb_buffer_add_u(struct cbb_buffer_st *base, uint64_t v,
+                            size_t len_len) {
+  if (len_len == 0) {
+    return 1;
+  }
+
+  uint8_t *buf;
+  if (!cbb_buffer_add(base, &buf, len_len)) {
+    return 0;
+  }
+
+  for (size_t i = len_len - 1; i < len_len; i--) {
+    buf[i] = v;
+    v >>= 8;
+  }
+
+  if (v != 0) {
+    base->error = 1;
+    return 0;
+  }
+
+  return 1;
+}
+
+int CBB_finish(CBB *cbb, uint8_t **out_data, size_t *out_len) {
+  if (cbb->is_child) {
+    return 0;
+  }
+
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+
+  if (cbb->base->can_resize && (out_data == NULL || out_len == NULL)) {
+    // |out_data| and |out_len| can only be NULL if the CBB is fixed.
+    return 0;
+  }
+
+  if (out_data != NULL) {
+    *out_data = cbb->base->buf;
+  }
+  if (out_len != NULL) {
+    *out_len = cbb->base->len;
+  }
+  cbb->base->buf = NULL;
+  CBB_cleanup(cbb);
+  return 1;
+}
+
+// CBB_flush recurses and then writes out any pending length prefix. The
+// current length of the underlying base is taken to be the length of the
+// length-prefixed data.
+int CBB_flush(CBB *cbb) {
+  size_t child_start, i, len;
+
+  // If |cbb->base| has hit an error, the buffer is in an undefined state, so
+  // fail all following calls. In particular, |cbb->child| may point to invalid
+  // memory.
+  if (cbb->base == NULL || cbb->base->error) {
+    return 0;
+  }
+
+  if (cbb->child == NULL || cbb->child->pending_len_len == 0) {
+    return 1;
+  }
+
+  child_start = cbb->child->offset + cbb->child->pending_len_len;
+
+  if (!CBB_flush(cbb->child) ||
+      child_start < cbb->child->offset ||
+      cbb->base->len < child_start) {
+    goto err;
+  }
+
+  len = cbb->base->len - child_start;
+
+  if (cbb->child->pending_is_asn1) {
+    // For ASN.1 we assume that we'll only need a single byte for the length.
+    // If that turned out to be incorrect, we have to move the contents along
+    // in order to make space.
+    uint8_t len_len;
+    uint8_t initial_length_byte;
+
+    assert (cbb->child->pending_len_len == 1);
+
+    if (len > 0xfffffffe) {
+      // Too large.
+      goto err;
+    } else if (len > 0xffffff) {
+      len_len = 5;
+      initial_length_byte = 0x80 | 4;
+    } else if (len > 0xffff) {
+      len_len = 4;
+      initial_length_byte = 0x80 | 3;
+    } else if (len > 0xff) {
+      len_len = 3;
+      initial_length_byte = 0x80 | 2;
+    } else if (len > 0x7f) {
+      len_len = 2;
+      initial_length_byte = 0x80 | 1;
+    } else {
+      len_len = 1;
+      initial_length_byte = (uint8_t)len;
+      len = 0;
+    }
+
+    if (len_len != 1) {
+      // We need to move the contents along in order to make space.
+      size_t extra_bytes = len_len - 1;
+      if (!cbb_buffer_add(cbb->base, NULL, extra_bytes)) {
+        goto err;
+      }
+      OPENSSL_memmove(cbb->base->buf + child_start + extra_bytes,
+                      cbb->base->buf + child_start, len);
+    }
+    cbb->base->buf[cbb->child->offset++] = initial_length_byte;
+    cbb->child->pending_len_len = len_len - 1;
+  }
+
+  for (i = cbb->child->pending_len_len - 1; i < cbb->child->pending_len_len;
+       i--) {
+    cbb->base->buf[cbb->child->offset + i] = (uint8_t)len;
+    len >>= 8;
+  }
+  if (len != 0) {
+    goto err;
+  }
+
+  cbb->child->base = NULL;
+  cbb->child = NULL;
+
+  return 1;
+
+err:
+  cbb->base->error = 1;
+  return 0;
+}
+
+const uint8_t *CBB_data(const CBB *cbb) {
+  assert(cbb->child == NULL);
+  return cbb->base->buf + cbb->offset + cbb->pending_len_len;
+}
+
+size_t CBB_len(const CBB *cbb) {
+  assert(cbb->child == NULL);
+  assert(cbb->offset + cbb->pending_len_len <= cbb->base->len);
+
+  return cbb->base->len - cbb->offset - cbb->pending_len_len;
+}
+
+static int cbb_add_length_prefixed(CBB *cbb, CBB *out_contents,
+                                   uint8_t len_len) {
+  uint8_t *prefix_bytes;
+
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+
+  size_t offset = cbb->base->len;
+  if (!cbb_buffer_add(cbb->base, &prefix_bytes, len_len)) {
+    return 0;
+  }
+
+  OPENSSL_memset(prefix_bytes, 0, len_len);
+  OPENSSL_memset(out_contents, 0, sizeof(CBB));
+  out_contents->base = cbb->base;
+  out_contents->is_child = 1;
+  cbb->child = out_contents;
+  cbb->child->offset = offset;
+  cbb->child->pending_len_len = len_len;
+  cbb->child->pending_is_asn1 = 0;
+
+  return 1;
+}
+
+int CBB_add_u8_length_prefixed(CBB *cbb, CBB *out_contents) {
+  return cbb_add_length_prefixed(cbb, out_contents, 1);
+}
+
+int CBB_add_u16_length_prefixed(CBB *cbb, CBB *out_contents) {
+  return cbb_add_length_prefixed(cbb, out_contents, 2);
+}
+
+int CBB_add_u24_length_prefixed(CBB *cbb, CBB *out_contents) {
+  return cbb_add_length_prefixed(cbb, out_contents, 3);
+}
+
+// add_base128_integer encodes |v| as a big-endian base-128 integer where the
+// high bit of each byte indicates where there is more data. This is the
+// encoding used in DER for both high tag number form and OID components.
+static int add_base128_integer(CBB *cbb, uint64_t v) {
+  unsigned len_len = 0;
+  uint64_t copy = v;
+  while (copy > 0) {
+    len_len++;
+    copy >>= 7;
+  }
+  if (len_len == 0) {
+    len_len = 1;  // Zero is encoded with one byte.
+  }
+  for (unsigned i = len_len - 1; i < len_len; i--) {
+    uint8_t byte = (v >> (7 * i)) & 0x7f;
+    if (i != 0) {
+      // The high bit denotes whether there is more data.
+      byte |= 0x80;
+    }
+    if (!CBB_add_u8(cbb, byte)) {
+      return 0;
+    }
+  }
+  return 1;
+}
+
+int CBB_add_asn1(CBB *cbb, CBB *out_contents, unsigned tag) {
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+
+  // Split the tag into leading bits and tag number.
+  uint8_t tag_bits = (tag >> CBS_ASN1_TAG_SHIFT) & 0xe0;
+  unsigned tag_number = tag & CBS_ASN1_TAG_NUMBER_MASK;
+  if (tag_number >= 0x1f) {
+    // Set all the bits in the tag number to signal high tag number form.
+    if (!CBB_add_u8(cbb, tag_bits | 0x1f) ||
+        !add_base128_integer(cbb, tag_number)) {
+      return 0;
+    }
+  } else if (!CBB_add_u8(cbb, tag_bits | tag_number)) {
+    return 0;
+  }
+
+  size_t offset = cbb->base->len;
+  if (!CBB_add_u8(cbb, 0)) {
+    return 0;
+  }
+
+  OPENSSL_memset(out_contents, 0, sizeof(CBB));
+  out_contents->base = cbb->base;
+  out_contents->is_child = 1;
+  cbb->child = out_contents;
+  cbb->child->offset = offset;
+  cbb->child->pending_len_len = 1;
+  cbb->child->pending_is_asn1 = 1;
+
+  return 1;
+}
+
+int CBB_add_bytes(CBB *cbb, const uint8_t *data, size_t len) {
+  uint8_t *dest;
+
+  if (!CBB_flush(cbb) ||
+      !cbb_buffer_add(cbb->base, &dest, len)) {
+    return 0;
+  }
+  OPENSSL_memcpy(dest, data, len);
+  return 1;
+}
+
+int CBB_add_space(CBB *cbb, uint8_t **out_data, size_t len) {
+  if (!CBB_flush(cbb) ||
+      !cbb_buffer_add(cbb->base, out_data, len)) {
+    return 0;
+  }
+  return 1;
+}
+
+int CBB_reserve(CBB *cbb, uint8_t **out_data, size_t len) {
+  if (!CBB_flush(cbb) ||
+      !cbb_buffer_reserve(cbb->base, out_data, len)) {
+    return 0;
+  }
+  return 1;
+}
+
+int CBB_did_write(CBB *cbb, size_t len) {
+  size_t newlen = cbb->base->len + len;
+  if (cbb->child != NULL ||
+      newlen < cbb->base->len ||
+      newlen > cbb->base->cap) {
+    return 0;
+  }
+  cbb->base->len = newlen;
+  return 1;
+}
+
+int CBB_add_u8(CBB *cbb, uint8_t value) {
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+
+  return cbb_buffer_add_u(cbb->base, value, 1);
+}
+
+int CBB_add_u16(CBB *cbb, uint16_t value) {
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+
+  return cbb_buffer_add_u(cbb->base, value, 2);
+}
+
+int CBB_add_u16le(CBB *cbb, uint16_t value) {
+  return CBB_add_u16(cbb, CRYPTO_bswap2(value));
+}
+
+int CBB_add_u24(CBB *cbb, uint32_t value) {
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+
+  return cbb_buffer_add_u(cbb->base, value, 3);
+}
+
+int CBB_add_u32(CBB *cbb, uint32_t value) {
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+
+  return cbb_buffer_add_u(cbb->base, value, 4);
+}
+
+int CBB_add_u32le(CBB *cbb, uint32_t value) {
+  return CBB_add_u32(cbb, CRYPTO_bswap4(value));
+}
+
+int CBB_add_u64(CBB *cbb, uint64_t value) {
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+  return cbb_buffer_add_u(cbb->base, value, 8);
+}
+
+int CBB_add_u64le(CBB *cbb, uint64_t value) {
+  return CBB_add_u64(cbb, CRYPTO_bswap8(value));
+}
+
+void CBB_discard_child(CBB *cbb) {
+  if (cbb->child == NULL) {
+    return;
+  }
+
+  cbb->base->len = cbb->child->offset;
+
+  cbb->child->base = NULL;
+  cbb->child = NULL;
+}
+
+int CBB_add_asn1_uint64(CBB *cbb, uint64_t value) {
+  CBB child;
+  int started = 0;
+
+  if (!CBB_add_asn1(cbb, &child, CBS_ASN1_INTEGER)) {
+    return 0;
+  }
+
+  for (size_t i = 0; i < 8; i++) {
+    uint8_t byte = (value >> 8*(7-i)) & 0xff;
+    if (!started) {
+      if (byte == 0) {
+        // Don't encode leading zeros.
+        continue;
+      }
+      // If the high bit is set, add a padding byte to make it
+      // unsigned.
+      if ((byte & 0x80) && !CBB_add_u8(&child, 0)) {
+        return 0;
+      }
+      started = 1;
+    }
+    if (!CBB_add_u8(&child, byte)) {
+      return 0;
+    }
+  }
+
+  // 0 is encoded as a single 0, not the empty string.
+  if (!started && !CBB_add_u8(&child, 0)) {
+    return 0;
+  }
+
+  return CBB_flush(cbb);
+}
+
+int CBB_add_asn1_int64(CBB *cbb, int64_t value) {
+  if (value >= 0) {
+    return CBB_add_asn1_uint64(cbb, value);
+  }
+
+  union {
+    int64_t i;
+    uint8_t bytes[sizeof(int64_t)];
+  } u;
+  u.i = value;
+  int start = 7;
+  // Skip leading sign-extension bytes unless they are necessary.
+  while (start > 0 && (u.bytes[start] == 0xff && (u.bytes[start - 1] & 0x80))) {
+    start--;
+  }
+
+  CBB child;
+  if (!CBB_add_asn1(cbb, &child, CBS_ASN1_INTEGER)) {
+    return 0;
+  }
+  for (int i = start; i >= 0; i--) {
+    if (!CBB_add_u8(&child, u.bytes[i])) {
+      return 0;
+    }
+  }
+  return CBB_flush(cbb);
+}
+
+int CBB_add_asn1_octet_string(CBB *cbb, const uint8_t *data, size_t data_len) {
+  CBB child;
+  if (!CBB_add_asn1(cbb, &child, CBS_ASN1_OCTETSTRING) ||
+      !CBB_add_bytes(&child, data, data_len) ||
+      !CBB_flush(cbb)) {
+    return 0;
+  }
+
+  return 1;
+}
+
+int CBB_add_asn1_bool(CBB *cbb, int value) {
+  CBB child;
+  if (!CBB_add_asn1(cbb, &child, CBS_ASN1_BOOLEAN) ||
+      !CBB_add_u8(&child, value != 0 ? 0xff : 0) ||
+      !CBB_flush(cbb)) {
+    return 0;
+  }
+
+  return 1;
+}
+
+// parse_dotted_decimal parses one decimal component from |cbs|, where |cbs| is
+// an OID literal, e.g., "1.2.840.113554.4.1.72585". It consumes both the
+// component and the dot, so |cbs| may be passed into the function again for the
+// next value.
+static int parse_dotted_decimal(CBS *cbs, uint64_t *out) {
+  *out = 0;
+  int seen_digit = 0;
+  for (;;) {
+    // Valid terminators for a component are the end of the string or a
+    // non-terminal dot. If the string ends with a dot, this is not a valid OID
+    // string.
+    uint8_t u;
+    if (!CBS_get_u8(cbs, &u) ||
+        (u == '.' && CBS_len(cbs) > 0)) {
+      break;
+    }
+    if (u < '0' || u > '9' ||
+        // Forbid stray leading zeros.
+        (seen_digit && *out == 0) ||
+        // Check for overflow.
+        *out > UINT64_MAX / 10 ||
+        *out * 10 > UINT64_MAX - (u - '0')) {
+      return 0;
+    }
+    *out = *out * 10 + (u - '0');
+    seen_digit = 1;
+  }
+  // The empty string is not a legal OID component.
+  return seen_digit;
+}
+
+int CBB_add_asn1_oid_from_text(CBB *cbb, const char *text, size_t len) {
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+
+  CBS cbs;
+  CBS_init(&cbs, (const uint8_t *)text, len);
+
+  // OIDs must have at least two components.
+  uint64_t a, b;
+  if (!parse_dotted_decimal(&cbs, &a) ||
+      !parse_dotted_decimal(&cbs, &b)) {
+    return 0;
+  }
+
+  // The first component is encoded as 40 * |a| + |b|. This assumes that |a| is
+  // 0, 1, or 2 and that, when it is 0 or 1, |b| is at most 39.
+  if (a > 2 ||
+      (a < 2 && b > 39) ||
+      b > UINT64_MAX - 80 ||
+      !add_base128_integer(cbb, 40u * a + b)) {
+    return 0;
+  }
+
+  // The remaining components are encoded unmodified.
+  while (CBS_len(&cbs) > 0) {
+    if (!parse_dotted_decimal(&cbs, &a) ||
+        !add_base128_integer(cbb, a)) {
+      return 0;
+    }
+  }
+
+  return 1;
+}
+
+static int compare_set_of_element(const void *a_ptr, const void *b_ptr) {
+  // See X.690, section 11.6 for the ordering. They are sorted in ascending
+  // order by their DER encoding.
+  const CBS *a = a_ptr, *b = b_ptr;
+  size_t a_len = CBS_len(a), b_len = CBS_len(b);
+  size_t min_len = a_len < b_len ? a_len : b_len;
+  int ret = OPENSSL_memcmp(CBS_data(a), CBS_data(b), min_len);
+  if (ret != 0) {
+    return ret;
+  }
+  if (a_len == b_len) {
+    return 0;
+  }
+  // If one is a prefix of the other, the shorter one sorts first. (This is not
+  // actually reachable. No DER encoding is a prefix of another DER encoding.)
+  return a_len < b_len ? -1 : 1;
+}
+
+int CBB_flush_asn1_set_of(CBB *cbb) {
+  if (!CBB_flush(cbb)) {
+    return 0;
+  }
+
+  CBS cbs;
+  size_t num_children = 0;
+  CBS_init(&cbs, CBB_data(cbb), CBB_len(cbb));
+  while (CBS_len(&cbs) != 0) {
+    if (!CBS_get_any_asn1_element(&cbs, NULL, NULL, NULL)) {
+      return 0;
+    }
+    num_children++;
+  }
+
+  if (num_children < 2) {
+    return 1;  // Nothing to do. This is the common case for X.509.
+  }
+  if (num_children > ((size_t)-1) / sizeof(CBS)) {
+    return 0;  // Overflow.
+  }
+
+  // Parse out the children and sort. We alias them into a copy of so they
+  // remain valid as we rewrite |cbb|.
+  int ret = 0;
+  size_t buf_len = CBB_len(cbb);
+  uint8_t *buf = OPENSSL_memdup(CBB_data(cbb), buf_len);
+  CBS *children = OPENSSL_malloc(num_children * sizeof(CBS));
+  if (buf == NULL || children == NULL) {
+    goto err;
+  }
+  CBS_init(&cbs, buf, buf_len);
+  for (size_t i = 0; i < num_children; i++) {
+    if (!CBS_get_any_asn1_element(&cbs, &children[i], NULL, NULL)) {
+      goto err;
+    }
+  }
+  qsort(children, num_children, sizeof(CBS), compare_set_of_element);
+
+  // Rewind |cbb| and write the contents back in the new order.
+  cbb->base->len = cbb->offset + cbb->pending_len_len;
+  for (size_t i = 0; i < num_children; i++) {
+    if (!CBB_add_bytes(cbb, CBS_data(&children[i]), CBS_len(&children[i]))) {
+      goto err;
+    }
+  }
+  assert(CBB_len(cbb) == buf_len);
+
+  ret = 1;
+
+err:
+  OPENSSL_free(buf);
+  OPENSSL_free(children);
+  return ret;
+}