From ccc6dab51298ecf40b95355e2cb8c6ddc76430af Mon Sep 17 00:00:00 2001
From: mjentsch <mtthsjntsch@gmail.com>
Date: Sun, 6 Sep 2015 22:26:00 +0200
Subject: [PATCH] fix input validation

---
 tgp-2prpl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tgp-2prpl.c b/tgp-2prpl.c
index f4d381b..ca87be8 100644
--- a/tgp-2prpl.c
+++ b/tgp-2prpl.c
@@ -304,8 +304,9 @@ void p2tgl_chat_update (PurpleChat *chat, tgl_peer_id_t id, int admin_id, const
 
 tgl_chat_id_t p2tgl_chat_get_id (PurpleChat *PC) {
   char *name = g_hash_table_lookup (purple_chat_get_components (PC), "id");
-  if (! atoi (name)) {
+  if (! name || ! atoi (name)) {
     warning ("p2tgl_chat_id_get: no id found in chat %s", PC->alias);
+    return TGL_MK_CHAT(0);
   }
   return TGL_MK_CHAT(atoi (name));
 }