(closes issue #10495)

Reported by: stevedavies
Make sure context pointer is valid or else chan_iax2 will go kaboom.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@79990 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_iax2.c

@@ -9549,7 +9549,7 @@ static struct iax2_peer *build_peer(const char *name, struct ast_variable *v, st
 
 	if (!ast_strlen_zero(peer->mailbox)) {
 		char *mailbox, *context;
-		mailbox = ast_strdupa(peer->mailbox);
+		context = mailbox = ast_strdupa(peer->mailbox);
 		strsep(&context, "@");
 		if (ast_strlen_zero(context))
 			context = "default";