From 7b2f737ceea9b1f181a8657fb09a755a3ee23372 Mon Sep 17 00:00:00 2001
From: Vic Lee <llyzs@163.com>
Date: Sun, 25 Sep 2011 11:49:09 +0800
Subject: [PATCH] libfreerdp-utils/memory: add a pointer check in xstrdup.

---
 libfreerdp-utils/memory.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libfreerdp-utils/memory.c b/libfreerdp-utils/memory.c
index f20c9d29d..a3077fd38 100644
--- a/libfreerdp-utils/memory.c
+++ b/libfreerdp-utils/memory.c
@@ -105,6 +105,9 @@ char* xstrdup(const char* str)
 {
 	char* mem;
 
+	if (str == NULL)
+		return NULL;
+
 #ifdef _WIN32
 	mem = _strdup(str);
 #else