gweb: Check GString pointers before freeing them

Fixes BMC#12452

diff --git a/gweb/gweb.c b/gweb/gweb.c
index 5de1083..7387e7c 100644 (file)
--- a/gweb/gweb.c
+++ b/gweb/gweb.c
@@ -151,10 +151,16 @@ static void free_session(struct web_session *session)
                g_io_channel_unref(session->transport_channel);
 
        g_free(session->result.last_key);
-       g_hash_table_destroy(session->result.headers);
 
-       g_string_free(session->send_buffer, TRUE);
-       g_string_free(session->current_header, TRUE);
+       if (session->result.headers != NULL)
+               g_hash_table_destroy(session->result.headers);
+
+       if (session->send_buffer != NULL)
+               g_string_free(session->send_buffer, TRUE);
+
+       if (session->current_header != NULL)
+               g_string_free(session->current_header, TRUE);
+
        g_free(session->receive_buffer);
 
        g_free(session->content_type);