- *siglen=0;
- EVP_MD_CTX_init(&tmp_ctx);
- EVP_MD_CTX_copy_ex(&tmp_ctx,ctx);
- EVP_DigestFinal_ex(&tmp_ctx,&(m[0]),&m_len);
- EVP_MD_CTX_cleanup(&tmp_ctx);
- for (i=0; i<4; i++)
- {
- v=ctx->digest->required_pkey_type[i];
- if (v == 0) break;
- if (pkey->type == v)
- {
- ok=1;
- break;
- }
- }
- if (!ok)
- {
- EVPerr(EVP_F_EVP_SIGNFINAL,EVP_R_WRONG_PUBLIC_KEY_TYPE);
- return(0);
- }
- if (ctx->digest->sign == NULL)
- {
- EVPerr(EVP_F_EVP_SIGNFINAL,EVP_R_NO_SIGN_FUNCTION_CONFIGURED);
- return(0);
- }
- return(ctx->digest->sign(ctx->digest->type,m,m_len,sigret,siglen,
- pkey->pkey.ptr));
- }
+ *siglen = 0;
+ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_FINALISE)) {
+ if (!EVP_DigestFinal_ex(ctx, m, &m_len))
+ goto err;
+ } else {
+ int rv = 0;
+ EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_create();
+ if (tmp_ctx == NULL) {
+ EVPerr(EVP_F_EVP_SIGNFINAL, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ rv = EVP_MD_CTX_copy_ex(tmp_ctx, ctx);
+ if (rv)
+ rv = EVP_DigestFinal_ex(tmp_ctx, m, &m_len);
+ EVP_MD_CTX_destroy(tmp_ctx);
+ if (!rv)
+ return 0;
+ }