- fix coverity issues 966593-966596

[openssl.git] / crypto / hmac / hmac.c

diff --git a/crypto/hmac/hmac.c b/crypto/hmac/hmac.c
index 8c2e36ee7c108c34a1f98366e55935597b0afec4..dc28d8da872972a755118b5f861b6020faef2f29 100644 (file)
--- a/crypto/hmac/hmac.c
+++ b/crypto/hmac/hmac.c
@@ -55,6 +55,9 @@
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */
+
+#define OPENSSL_FIPSAPI
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -78,7 +81,7 @@ int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
        if (key != NULL)
                {
                reset=1;
-               j=EVP_MD_block_size(md);
+               j=M_EVP_MD_block_size(md);
                OPENSSL_assert(j <= (int)sizeof(ctx->key));
                if (j < len)
                        {
@@ -107,14 +110,14 @@ int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
                        pad[i]=0x36^ctx->key[i];
                if (!EVP_DigestInit_ex(&ctx->i_ctx,md, impl))
                        goto err;
-               if (!EVP_DigestUpdate(&ctx->i_ctx,pad,EVP_MD_block_size(md)))
+               if (!EVP_DigestUpdate(&ctx->i_ctx,pad,M_EVP_MD_block_size(md)))
                        goto err;
 
                for (i=0; i<HMAC_MAX_MD_CBLOCK; i++)
                        pad[i]=0x5c^ctx->key[i];
                if (!EVP_DigestInit_ex(&ctx->o_ctx,md, impl))
                        goto err;
-               if (!EVP_DigestUpdate(&ctx->o_ctx,pad,EVP_MD_block_size(md)))
+               if (!EVP_DigestUpdate(&ctx->o_ctx,pad,M_EVP_MD_block_size(md)))
                        goto err;
                }
        if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->i_ctx))
@@ -138,12 +141,9 @@ int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len)
 
 int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len)
        {
-       int j;
        unsigned int i;
        unsigned char buf[EVP_MAX_MD_SIZE];
 
-       j=EVP_MD_block_size(ctx->md);
-
        if (!EVP_DigestFinal_ex(&ctx->md_ctx,buf,&i))
                goto err;
        if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->o_ctx))
@@ -166,11 +166,12 @@ void HMAC_CTX_init(HMAC_CTX *ctx)
 
 int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
        {
-       if (!EVP_MD_CTX_copy(&dctx->i_ctx, &sctx->i_ctx))
+       HMAC_CTX_init(dctx);
+       if (!EVP_MD_CTX_copy_ex(&dctx->i_ctx, &sctx->i_ctx))
                goto err;
-       if (!EVP_MD_CTX_copy(&dctx->o_ctx, &sctx->o_ctx))
+       if (!EVP_MD_CTX_copy_ex(&dctx->o_ctx, &sctx->o_ctx))
                goto err;
-       if (!EVP_MD_CTX_copy(&dctx->md_ctx, &sctx->md_ctx))
+       if (!EVP_MD_CTX_copy_ex(&dctx->md_ctx, &sctx->md_ctx))
                goto err;
        memcpy(dctx->key, sctx->key, HMAC_MAX_MD_CBLOCK);
        dctx->key_length = sctx->key_length;
@@ -209,3 +210,9 @@ unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
        return NULL;
        }
 
+void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags)
+       {
+       M_EVP_MD_CTX_set_flags(&ctx->i_ctx, flags);
+       M_EVP_MD_CTX_set_flags(&ctx->o_ctx, flags);
+       M_EVP_MD_CTX_set_flags(&ctx->md_ctx, flags);
+       }