Address the condition where X-ClientCode could be NULL or an empty string - from...
[asterisk/asterisk.git] / channels / chan_sip.c
index e69a8a5..29bdfb9 100644 (file)
@@ -8735,7 +8735,7 @@ static void handle_request_info(struct sip_pvt *p, struct sip_request *req)
                        ast_queue_control(p->owner, AST_CONTROL_VIDUPDATE);
                transmit_response(p, "200 OK", req);
                return;
-       } else if ((c = get_header(req, "X-ClientCode"))) {
+       } else if (!ast_strlen_zero(c = get_header(req, "X-ClientCode"))) {
                /* Client code (from SNOM phone) */
                if (ast_test_flag(p, SIP_USECLIENTCODE)) {
                        if (p->owner && p->owner->cdr)