From: Tobias Brunner <tobias@strongswan.org>
Date: Mon, 27 May 2013 16:41:16 +0000 (+0200)
Subject: Allow memwipe() to be called with NULL argument
X-Git-Tag: 5.1.0dr1~136
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c480b5f4580ab97122a525e534a866bcf5843644;p=thirdparty%2Fstrongswan.git

Allow memwipe() to be called with NULL argument
---

diff --git a/src/libstrongswan/utils/utils.h b/src/libstrongswan/utils/utils.h
index c66c665e08..46eaf7b647 100644
--- a/src/libstrongswan/utils/utils.h
+++ b/src/libstrongswan/utils/utils.h
@@ -423,6 +423,10 @@ static inline void memwipe_inline(void *ptr, size_t n)
  */
 static inline void memwipe(void *ptr, size_t n)
 {
+	if (!ptr)
+	{
+		return;
+	}
 	if (__builtin_constant_p(n))
 	{
 		memwipe_inline(ptr, n);