diff options
Diffstat (limited to 'crypto/hmac/hmac.c')
| -rw-r--r-- | crypto/hmac/hmac.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/crypto/hmac/hmac.c b/crypto/hmac/hmac.c index ffca891..3952dd5 100644 --- a/crypto/hmac/hmac.c +++ b/crypto/hmac/hmac.c @@ -157,31 +157,36 @@ void HMAC_CTX_free(HMAC_CTX *ctx) } } -int HMAC_CTX_reset(HMAC_CTX *ctx) +static int hmac_ctx_alloc_mds(HMAC_CTX *ctx) { - hmac_ctx_cleanup(ctx); if (ctx->i_ctx == NULL) ctx->i_ctx = EVP_MD_CTX_new(); if (ctx->i_ctx == NULL) - goto err; + return 0; if (ctx->o_ctx == NULL) ctx->o_ctx = EVP_MD_CTX_new(); if (ctx->o_ctx == NULL) - goto err; + return 0; if (ctx->md_ctx == NULL) ctx->md_ctx = EVP_MD_CTX_new(); if (ctx->md_ctx == NULL) - goto err; - ctx->md = NULL; + return 0; return 1; - err: +} + +int HMAC_CTX_reset(HMAC_CTX *ctx) +{ hmac_ctx_cleanup(ctx); - return 0; + if (!hmac_ctx_alloc_mds(ctx)) { + hmac_ctx_cleanup(ctx); + return 0; + } + return 1; } int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx) { - if (!HMAC_CTX_reset(dctx)) + if (!hmac_ctx_alloc_mds(dctx)) goto err; if (!EVP_MD_CTX_copy_ex(dctx->i_ctx, sctx->i_ctx)) goto err; |