Fix to bug 562 (http://bugs.mariadb.com/show_bug.cgi?id=562)

mysql_client.c: Changed the error message and, in the case of a failed auth while using a password, set the first byte to 1 in dcb->data->client_sha1

server/modules/protocol/mysql_client.c

@@ -488,6 +488,10 @@ static int gw_mysql_do_authentication(DCB *dcb, GWBUF *queue) {
 	if (auth_ret == 0)
 	{
 		dcb->user = strdup(client_data->user);
+	}else if(auth_token_len > 0)
+	{
+		/**User was using a password, add a notification for that*/
+		stage1_hash[0] = 1;
 	}
 
 	return auth_ret;
@@ -654,12 +658,22 @@ int gw_read_client_event(
                                 protocol->owner_dcb->fd,
                                 pthread_self())));
                         
+
+						char errstr [256];
+						MYSQL_session *mysqlsession =  dcb->data;
+
+						sprintf(errstr,
+								"Access denied for user '%s'@'%s' (using password: %s)",
+								mysqlsession->user,
+								dcb->remote,
+								mysqlsession->client_sha1[0] > 0 ? "YES":"NO");
+
                         /** Send ERR 1045 to client */
                         mysql_send_auth_error(
                                 dcb,
                                 2,
                                 0,
-                                "Authorization failed");                        
+                                errstr);
 
                         dcb_close(dcb);
                 }