Set hangup cause in local_hangup

When a call involves a local channel (like SIP -> Local -> SIP), the hangup
cause was not being set. This resulted in SIP channels sometimes getting a
503 error instead of a 486 when the far side sent a busy. In Asterisk 1.8+
this also can cause issues with CCSS that involve a local channel. This patch
sets the hangupcause for one side of the local channel to the other in
local_hangup for outbound calls.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@306119 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_local.c

@@ -660,6 +660,7 @@ static int local_hangup(struct ast_channel *ast)
 				ao2_lock(p);
 			}
 			if (p->owner) {
+				p->owner->hangupcause = p->chan->hangupcause;
 				pbx_builtin_setvar_helper(p->owner, "CHANLOCALSTATUS", status);
 				ast_channel_unlock(p->owner);
 			}