openssl: return CURLE_PEER_FAILED_VERIFICATION on failure to parse issuer

Failure to extract the issuer name from the server certificate should
return a more specific error code like on other TLS backends.

diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index a487f553c90d24c15fd0eb7bfd4a3b85357154b5..ce890fe3c0c55fab977bb517ca5bdbbde99b14e2 100644 (file)
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -3210,7 +3210,7 @@ static CURLcode servercert(struct connectdata *conn,
           ossl_strerror(ERR_get_error(), error_buffer,
                         sizeof(error_buffer)) );
     BIO_free(mem);
-    return 0;
+    return CURLE_OUT_OF_MEMORY;
   }
 
   BACKEND->server_cert = SSL_get_peer_certificate(BACKEND->handle);
@@ -3257,7 +3257,7 @@ static CURLcode servercert(struct connectdata *conn,
   if(rc) {
     if(strict)
       failf(data, "SSL: couldn't get X509-issuer name!");
-    result = CURLE_SSL_CONNECT_ERROR;
+    result = CURLE_PEER_FAILED_VERIFICATION;
   }
   else {
     infof(data, " issuer: %s\n", buffer);