Remove static switch to ease fuzz coverage tracking

src/WebSocketHandshake.h

@@ -37,54 +37,65 @@ struct WebSocketHandshake {
         void operator()(uint32_t *a, uint32_t *hash) {}
     };
 
-    template <int state>
-    struct Sha1Loop {
     static inline uint32_t rol(uint32_t value, size_t bits) {return (value << bits) | (value >> (32 - bits));}
     static inline uint32_t blk(uint32_t b[16], size_t i) {
         return rol(b[(i + 13) & 15] ^ b[(i + 8) & 15] ^ b[(i + 2) & 15] ^ b[i], 1);
     }
 
+    struct Sha1Loop1 {
         template <int i>
         static inline void f(uint32_t *a, uint32_t *b) {
-            switch (state) {
-            case 1:
             a[i % 5] += ((a[(3 + i) % 5] & (a[(2 + i) % 5] ^ a[(1 + i) % 5])) ^ a[(1 + i) % 5]) + b[i] + 0x5a827999 + rol(a[(4 + i) % 5], 5);
             a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
-                break;
+        }
-            case 2:
+    };
+    struct Sha1Loop2 {
+        template <int i>
+        static inline void f(uint32_t *a, uint32_t *b) {
             b[i] = blk(b, i);
             a[(1 + i) % 5] += ((a[(4 + i) % 5] & (a[(3 + i) % 5] ^ a[(2 + i) % 5])) ^ a[(2 + i) % 5]) + b[i] + 0x5a827999 + rol(a[(5 + i) % 5], 5);
             a[(4 + i) % 5] = rol(a[(4 + i) % 5], 30);
-                break;
+        }
-            case 3:
+    };
+    struct Sha1Loop3 {
+        template <int i>
+        static inline void f(uint32_t *a, uint32_t *b) {
             b[(i + 4) % 16] = blk(b, (i + 4) % 16);
             a[i % 5] += (a[(3 + i) % 5] ^ a[(2 + i) % 5] ^ a[(1 + i) % 5]) + b[(i + 4) % 16] + 0x6ed9eba1 + rol(a[(4 + i) % 5], 5);
             a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
-                break;
+        }
-            case 4:
+    };
+    struct Sha1Loop4 {
+        template <int i>
+        static inline void f(uint32_t *a, uint32_t *b) {
             b[(i + 8) % 16] = blk(b, (i + 8) % 16);
             a[i % 5] += (((a[(3 + i) % 5] | a[(2 + i) % 5]) & a[(1 + i) % 5]) | (a[(3 + i) % 5] & a[(2 + i) % 5])) + b[(i + 8) % 16] + 0x8f1bbcdc + rol(a[(4 + i) % 5], 5);
             a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
-                break;
+        }
-            case 5:
+    };
+    struct Sha1Loop5 {
+        template <int i>
+        static inline void f(uint32_t *a, uint32_t *b) {
             b[(i + 12) % 16] = blk(b, (i + 12) % 16);
             a[i % 5] += (a[(3 + i) % 5] ^ a[(2 + i) % 5] ^ a[(1 + i) % 5]) + b[(i + 12) % 16] + 0xca62c1d6 + rol(a[(4 + i) % 5], 5);
             a[(3 + i) % 5] = rol(a[(3 + i) % 5], 30);
-                break;
-            case 6:
-                b[i] += a[4 - i];
         }
+    };
+    struct Sha1Loop6 {
+        template <int i>
+        static inline void f(uint32_t *a, uint32_t *b) {
+            b[i] += a[4 - i];
         }
     };
 
     static inline void sha1(uint32_t hash[5], uint32_t b[16]) {
         uint32_t a[5] = {hash[4], hash[3], hash[2], hash[1], hash[0]};
-        static_for<16, Sha1Loop<1>>()(a, b);
+        static_for<16, Sha1Loop1>()(a, b);
-        static_for<4, Sha1Loop<2>>()(a, b);
+        static_for<4, Sha1Loop2>()(a, b);
-        static_for<20, Sha1Loop<3>>()(a, b);
+        static_for<20, Sha1Loop3>()(a, b);
-        static_for<20, Sha1Loop<4>>()(a, b);
+        static_for<20, Sha1Loop4>()(a, b);
-        static_for<20, Sha1Loop<5>>()(a, b);
+        static_for<20, Sha1Loop5>()(a, b);
-        static_for<5, Sha1Loop<6>>()(a, hash);
+        static_for<5, Sha1Loop6>()(a, hash);
     }
 
     static inline void base64(unsigned char *src, char *dst) {