From 7c84e7d33762a4bccc0002476a3b20e0b8f26fcc Mon Sep 17 00:00:00 2001
From: Clément Bœsch <ubitux@gmail.com>
Date: Mon, 2 Jul 2012 19:31:35 +0200
Subject: mem: heap memory poisoning.

Enable it by default with FATE.
limitation: not random, and not supported with realloc.
---
 libavutil/mem.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'libavutil')

diff --git a/libavutil/mem.c b/libavutil/mem.c
index 385ace0702..8ec226b17a 100644
--- a/libavutil/mem.c
+++ b/libavutil/mem.c
@@ -125,8 +125,14 @@ void *av_malloc(size_t size)
 #else
     ptr = malloc(size);
 #endif
-    if(!ptr && !size)
+    if(!ptr && !size) {
+        size = 1;
         ptr= av_malloc(1);
+    }
+#if CONFIG_MEMORY_POISONING
+    if (ptr)
+        memset(ptr, 0x2a, size);
+#endif
     return ptr;
 }
 
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