http://www.tienza.es/crux/src/www.jwz.org/xscreensaver/xscreensaver-5.05.tar.gz

[xscreensaver] / utils / grabclient.c

diff --git a/utils/grabclient.c b/utils/grabclient.c
index 8f6778bc0d3b0ff66cf7cb33c12730eb4d972c8c..3589ad9821d6af4d6f983faf4e99799646861f79 100644 (file)
--- a/utils/grabclient.c
+++ b/utils/grabclient.c
@@ -1,4 +1,4 @@
-/* xscreensaver, Copyright (c) 1992-2006 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1992-2008 Jamie Zawinski <jwz@jwz.org>
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that
@@ -657,6 +657,8 @@ load_random_image_1 (Screen *screen, Window window, Drawable drawable,
   XRectangle geom_ret_2;
   char *name_ret_2 = 0;
 
+  if (!drawable) abort();
+
   if (callback) {
     geom_ret = &geom_ret_2;
     name_ret = &name_ret_2;