From dd1cd37f11eef9551a2b70cd96fd28ae0f352051 Mon Sep 17 00:00:00 2001 From: "Kevin P. Fleming" Date: Mon, 25 Jul 2005 17:13:24 +0000 Subject: ensure SIP_HEADER does not segfault when called on hung-up channels (bug #4756, different fix than posted patch) git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6187 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- channels/chan_sip.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'channels') diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 07c8607fe..d7fe50010 100755 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -8158,6 +8158,13 @@ static char *func_header_read(struct ast_channel *chan, char *cmd, char *data, c } p = chan->tech_pvt; + + /* If there is no private structure, this channel is no longer alive */ + if (!p) { + ast_mutex_unlock(&chan->lock); + return NULL; + } + content = get_header(&p->initreq, data); if (ast_strlen_zero(content)) { -- cgit v1.2.3