From abcb60b9ea356f7c3e9365a9e5332f988ad95ba9 Mon Sep 17 00:00:00 2001
From: Arnaud Fontaine <arnau@debian.org>
Date: Sat, 22 Mar 2008 15:16:51 +0000
Subject: [PATCH] Fix x_get_transient_for_hint() based on
 XGetTransientForHint()

---
 common/xutil.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/common/xutil.c b/common/xutil.c
index 7d145fa7e..cfb4c1599 100644
--- a/common/xutil.c
+++ b/common/xutil.c
@@ -129,8 +129,14 @@ x_get_transient_for_hint(xcb_connection_t *c, xcb_window_t win,
                                                 WINDOW, 0, 1),
                                NULL);
 
-    if(!r)
+    if(!r || r->type != WINDOW || r->format != 32 || r->length == 0)
+    {
+        *prop_win = XCB_NONE;
+        if(r)
+            p_delete(&r);
+
         return false;
+    }
 
     *prop_win = *((xcb_window_t *) xcb_get_property_value(r));
     p_delete(&r);