Fix assertion on client SSL read

When SSL is enabled, the protocol seems to get zero byte reads which result in a null GWBUF being passed to gwbuf_length.
2019-05-20 15:43:40 +03:00 · 2019-05-20 15:43:40 +03:00 · 76399200f4
commit 76399200f4
parent e5a49a2f7b
1 changed files with 7 additions and 1 deletions
--- a/server/modules/protocol/MySQL/mariadbclient/mysql_client.cc
+++ b/server/modules/protocol/MySQL/mariadbclient/mysql_client.cc
@ -524,7 +524,13 @@ int gw_read_client_event(DCB* dcb)
    {
        dcb_close(dcb);
    }
-    if (0 == (nbytes_read = gwbuf_length(read_buffer)))
+
+    if (read_buffer)
+    {
+        nbytes_read = gwbuf_length(read_buffer);
+    }
+
+    if (nbytes_read == 0)
    {
        return return_code;
    }