Fix a crash in app_queue with very long member lists.

A user reported via #asterisk that with very long lists of members, a crash
occurs in ast_strdupa, so just use a single buffer and ast_copy_string instead
of stack allocating copys of each interface name.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@191041 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_queue.c

@@ -600,9 +600,9 @@ static int update_status(const char *interface, const int status)
 		ast_mutex_lock(&q->lock);
 		mem_iter = ao2_iterator_init(q->members, 0);
 		while ((cur = ao2_iterator_next(&mem_iter))) {
-			char *tmp_interface;
+			char tmp_interface[80];
 			char *slash_pos;
-			tmp_interface = ast_strdupa(cur->state_interface);
+			ast_copy_string(tmp_interface, cur->state_interface, sizeof(tmp_interface));
 			if ((slash_pos = strchr(tmp_interface, '/')))
 				if ((slash_pos = strchr(slash_pos + 1, '/')))
 					*slash_pos = '\0';
@@ -658,9 +658,9 @@ static void *handle_statechange(struct statechange *sc)
 
 	AST_LIST_LOCK(&interfaces);
 	AST_LIST_TRAVERSE(&interfaces, curint, list) {
-		char *interface;
+		char interface[80];
 		char *slash_pos;
-		interface = ast_strdupa(curint->interface);
+		ast_copy_string(interface, curint->interface, sizeof(interface));
 		if ((slash_pos = strchr(interface, '/')))
 			if ((slash_pos = strchr(slash_pos + 1, '/')))
 				*slash_pos = '\0';