Add a cleanup function for MDs.

[openssl.git] / crypto / evp / digest.c

diff --git a/crypto/evp/digest.c b/crypto/evp/digest.c
index c81f6e6cf8e8410b2b7567453f9073e7d3a5fbaf..69a0bdbe3438952dcad42e5d763894b5040f1cb3 100644 (file)
--- a/crypto/evp/digest.c
+++ b/crypto/evp/digest.c
@@ -165,6 +165,8 @@ int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx)
        /* Don't assume ctx->md_data was cleaned in EVP_Digest_Final,
         * because sometimes only copies of the context are ever finalised.
         */
+       if(ctx->digest && ctx->digest->cleanup)
+               ctx->digest->cleanup(ctx);
        if(ctx->digest && ctx->digest->ctx_size && ctx->md_data)
                {
                memset(ctx->md_data,0,ctx->digest->ctx_size);