From be481aecafb3ce956989d15fe17674f70fbb5c56 Mon Sep 17 00:00:00 2001
From: Alexis Maiquez <games-fun-inc@hotmail.com>
Date: Tue, 17 Jan 2017 16:26:00 +0100
Subject: [PATCH] Fix segmentation fault on image downloading

Some images are bugged in telegram (as in they're detected but you cant download them) so this should fix the crash when trying to download these files.
---
 queries.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/queries.c b/queries.c
index 5c1c5281..8ea9340e 100644
--- a/queries.c
+++ b/queries.c
@@ -3301,6 +3301,13 @@ void tgl_do_load_file_location (struct tgl_state *TLS, struct tgl_file_location
 }
 
 void tgl_do_load_photo (struct tgl_state *TLS, struct tgl_photo *photo, void (*callback)(struct tgl_state *TLS, void *callback_extra, int success, const char *filename), void *callback_extra) {
+  if(photo == NULL) {
+    tgl_set_query_error (TLS, EINVAL, "Bad photo (cannot download");
+    if (callback) {
+      callback (TLS, callback_extra, 0, 0);
+    }
+    return;
+  }
   if (!photo->sizes_num) {
     tgl_set_query_error (TLS, EINVAL, "Bad photo (no photo sizes");
     if (callback) {