Improve fuzzing coverage

fuzzing/Http.cpp

@@ -97,12 +97,17 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         }
 
         /* Parse it */
-        httpParser.consumePostPadded((char *) data, size, user, reserved, [](void *s, uWS::HttpRequest *httpRequest) -> void * {
+        httpParser.consumePostPadded((char *) data, size, user, reserved, [reserved](void *s, uWS::HttpRequest *httpRequest) -> void * {
 
             readBytes(httpRequest->getHeader(httpRequest->getUrl()));
             readBytes(httpRequest->getMethod());
             readBytes(httpRequest->getQuery());
 
+#ifdef UWS_WITH_PROXY
+            auto *pp = (uWS::ProxyParser *) reserved;
+            readBytes(pp->getSourceAddress());
+#endif
+
             /* Route the method and URL in two passes */
             staticData.router.getUserData() = {};
             if (!staticData.router.route(httpRequest->getMethod(), httpRequest->getUrl())) {

src/HttpResponse.h

@@ -70,15 +70,6 @@ private:
         Super::write(buf, length);
     }
 
-    /* Write an unsigned 32-bit integer */
-    void writeUnsigned(unsigned int value) {
-        char buf[10];
-        int length = utils::u32toa(value, buf);
-
-        /* For now we do this copy */
-        Super::write(buf, length);
-    }
-
     /* When we are done with a response we mark it like so */
     void markDone(HttpResponseData<SSL> *httpResponseData) {
         httpResponseData->onAborted = nullptr;
@@ -376,10 +367,10 @@ public:
     }
 
     /* Write an HTTP header with unsigned int value */
-    HttpResponse *writeHeader(std::string_view key, unsigned int value) {
+    HttpResponse *writeHeader(std::string_view key, uint64_t value) {
         Super::write(key.data(), (int) key.length());
         Super::write(": ", 2);
-        writeUnsigned(value);
+        writeUnsigned64(value);
         Super::write("\r\n", 2);
         return this;
     }

src/Utilities.h

@@ -43,23 +43,6 @@ inline int u32toaHex(uint32_t value, char *dst) {
     return ret;
 }
 
-inline int u32toa(uint32_t value, char *dst) {
-    char temp[10];
-    char *p = temp;
-    do {
-        *p++ = (char) ((value % 10) + '0');
-        value /= 10;
-    } while (value > 0);
-
-    int ret = (int) (p - temp);
-
-    do {
-        *dst++ = *--p;
-    } while (p != temp);
-
-    return ret;
-}
-
 inline int u64toa(uint64_t value, char *dst) {
     char temp[20];
     char *p = temp;