From: Travis Cross <tc@traviscross.com>
Date: Wed, 9 Apr 2014 01:16:12 +0000 (+0000)
Subject: Avoid crash on event without content-type
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39bbcaff1bab83e0b6147b65d1ce4a1ab4c7cd5a;p=thirdparty%2Ffreeswitch.git

Avoid crash on event without content-type

If we received an event without a content-type header we were
dereferencing a null pointer leading to a seg fault.

Reported-by: Ico <ico@voip-io.org>

ESL-90 --resolve
---

diff --git a/libs/esl/src/esl.c b/libs/esl/src/esl.c
index bbb6c51aec..28c8927b6f 100644
--- a/libs/esl/src/esl.c
+++ b/libs/esl/src/esl.c
@@ -1556,7 +1556,7 @@ ESL_DECLARE(esl_status_t) esl_send_recv_timed(esl_handle_t *handle, const char *
 	if (handle->last_sr_event) {
 		char *ct = esl_event_get_header(handle->last_sr_event,"content-type");
 
-		if (strcasecmp(ct, "api/response") && strcasecmp(ct, "command/reply")) {
+		if (ct && strcasecmp(ct, "api/response") && strcasecmp(ct, "command/reply")) {
 			esl_event_t *ep;
 
 			for(ep = handle->race_event; ep && ep->next; ep = ep->next);