From 458c3937bca9db8402e898227bdac07d36959fee Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 16 Oct 2013 01:22:02 +0200
Subject: blob: add a magic offset to nesting cookies to ensure that NULL is
 never returned as a normal value

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---
 blob.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'blob.h')

diff --git a/blob.h b/blob.h
index 846de6e..fa430a8 100644
--- a/blob.h
+++ b/blob.h
@@ -28,6 +28,8 @@
 
 #include "utils.h"
 
+#define BLOB_COOKIE		0x01234567
+
 enum {
 	BLOB_ATTR_UNSPEC,
 	BLOB_ATTR_NESTED,
-- 
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