diff options
| author | Rich Salz <rsalz@akamai.com> | 2015-05-01 23:10:31 -0400 |
|---|---|---|
| committer | Rich Salz <rsalz@openssl.org> | 2015-05-04 15:00:13 -0400 |
| commit | b4faea50c35d92a67d1369355b49cc3efba78406 (patch) | |
| tree | cfebea69d625f936c9fd7281f1fa3eaa2fa38834 /crypto/hmac | |
| parent | 8920a7cd04f43b1a090d0b0a8c9e16b94c6898d4 (diff) | |
Use safer sizeof variant in malloc
For a local variable:
TYPE *p;
Allocations like this are "risky":
p = OPENSSL_malloc(sizeof(TYPE));
if the type of p changes, and the malloc call isn't updated, you
could get memory corruption. Instead do this:
p = OPENSSL_malloc(sizeof(*p));
Also fixed a few memset() calls that I noticed while doing this.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Diffstat (limited to 'crypto/hmac')
| -rw-r--r-- | crypto/hmac/hm_pmeth.c | 2 | ||||
| -rw-r--r-- | crypto/hmac/hmac.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/crypto/hmac/hm_pmeth.c b/crypto/hmac/hm_pmeth.c index f53f78c898..845a72b2eb 100644 --- a/crypto/hmac/hm_pmeth.c +++ b/crypto/hmac/hm_pmeth.c @@ -75,7 +75,7 @@ typedef struct { static int pkey_hmac_init(EVP_PKEY_CTX *ctx) { HMAC_PKEY_CTX *hctx; - hctx = OPENSSL_malloc(sizeof(HMAC_PKEY_CTX)); + hctx = OPENSSL_malloc(sizeof(*hctx)); if (!hctx) return 0; hctx->md = NULL; diff --git a/crypto/hmac/hmac.c b/crypto/hmac/hmac.c index ccfd16e08d..6362aa850f 100644 --- a/crypto/hmac/hmac.c +++ b/crypto/hmac/hmac.c @@ -197,7 +197,7 @@ void HMAC_CTX_cleanup(HMAC_CTX *ctx) EVP_MD_CTX_cleanup(&ctx->i_ctx); EVP_MD_CTX_cleanup(&ctx->o_ctx); EVP_MD_CTX_cleanup(&ctx->md_ctx); - memset(ctx, 0, sizeof *ctx); + memset(ctx, 0, sizeof(*ctx)); } unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len, |