From: Joshua Colp <jcolp@digium.com>
Date: Wed, 2 Jan 2008 20:24:09 +0000 (+0000)
Subject: Allocate a SIP refer structure when performing a transfer using BYE with Also so... 
X-Git-Tag: 1.4.17~4
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b5087d77430e021d3e4c226494bb445e6eabf797;p=thirdparty%2Fasterisk.git

Allocate a SIP refer structure when performing a transfer using BYE with Also so that the transfer information is properly stored. (AST-2008-001)
(closes issue #11637)
Reported by: greyvoip


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@95946 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 2835aebe62..cd09992d2e 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -9048,9 +9048,14 @@ static int get_also_info(struct sip_pvt *p, struct sip_request *oreq)
 {
 	char tmp[256] = "", *c, *a;
 	struct sip_request *req = oreq ? oreq : &p->initreq;
-	struct sip_refer *referdata = p->refer;
+	struct sip_refer *referdata = NULL;
 	const char *transfer_context = NULL;
 	
+	if (!p->refer && !sip_refer_allocate(p))
+		return -1;
+
+	referdata = p->refer;
+
 	ast_copy_string(tmp, get_header(req, "Also"), sizeof(tmp));
 	c = get_in_brackets(tmp);