fix all clang warnings except Wpadded (diagnostic), Wconversion which inludes Wsign-conversion (implicit conversions part of standard)

ctaocrypt/benchmark/benchmark.c

@@ -956,7 +956,7 @@ void bench_eccKeyAgree(void)
     byte   shared[1024];
     byte   sig[1024];
     byte   digest[32];
-    word32 x;
+    word32 x = 0;
  
     ecc_init(&genKey);
     ecc_init(&genKey2);

ctaocrypt/src/ecc.c

@@ -971,7 +971,8 @@ static int ecc_mulmod(mp_int* k, ecc_point *G, ecc_point *R, mp_int* modulus,
    mp_int        mu;
    mp_digit      mp;
    unsigned long buf;
-   int           first, bitbuf, bitcpy, bitcnt, mode, digidx;
+   int           first = 1, bitbuf = 0, bitcpy = 0, bitcnt = 0, mode = 0,
+                 digidx = 0;
 
    if (k == NULL || G == NULL || R == NULL || modulus == NULL)
        return ECC_BAD_ARG_E;

ctaocrypt/src/tfm.c

@@ -2402,7 +2402,7 @@ int mp_add_d(fp_int *a, fp_digit b, fp_int *c)
 #ifdef HAVE_ECC
 
 /* chars used in radix conversions */
-const char *fp_s_rmap = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/";
+static const char *fp_s_rmap = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/";
 
 static int fp_read_radix(fp_int *a, const char *str, int radix)
 {

src/internal.c

@@ -2817,7 +2817,7 @@ static int GetRecordHeader(CYASSL* ssl, const byte* input, word32* inOutIdx,
 #endif
 
     /* verify record type here as well */
-    switch ((enum ContentType)rh->type) {
+    switch (rh->type) {
         case handshake:
         case change_cipher_spec:
         case application_data:

src/ocsp.c

@@ -94,13 +94,10 @@ static int xstat2err(int stat)
     switch (stat) {
         case CERT_GOOD:
             return 0;
-            break;
         case CERT_REVOKED:
             return OCSP_CERT_REVOKED;
-            break;
         default:
             return OCSP_CERT_UNKNOWN;
-            break;
     }
 }
 

tests/api.c

@@ -948,7 +948,7 @@ static int test_CyaSSL_read_write(void)
     FreeTcpReady(&ready);
 
     return test_result;
-};
+}
 
 #endif