From a962c0f40c1bf71b44a67f898a35122f158b6b25 Mon Sep 17 00:00:00 2001
From: David Schleef <ds@schleef.org>
Date: Thu, 24 Jul 2003 08:49:43 +0000
Subject: Add buffer length checks to every typefinding function

Original commit message from CVS:
Add buffer length checks to every typefinding function
---
 ext/tarkin/gsttarkin.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'ext/tarkin/gsttarkin.c')

diff --git a/ext/tarkin/gsttarkin.c b/ext/tarkin/gsttarkin.c
index 69fee01a..6e9abbc1 100644
--- a/ext/tarkin/gsttarkin.c
+++ b/ext/tarkin/gsttarkin.c
@@ -69,11 +69,16 @@ static GstTypeDefinition tarkindefinition =
 static GstCaps* 
 tarkin_type_find (GstBuffer *buf, gpointer private) 
 {
-  guint32 head = GUINT32_FROM_BE (*((guint32 *)GST_BUFFER_DATA (buf)));
+  guint32 head;
+
+  if (GST_BUFFER_SIZE (buf) < 4)
+    return NULL;
 
   /* FIXME */
   return NULL;
   
+  head = GUINT32_FROM_BE (*((guint32 *)GST_BUFFER_DATA (buf)));
+
   if (head  != 0x4F676753)
     return NULL;
 
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