From cc301348df0acff69827f9ee23b817521a129300 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Moreau?= <marcandre.moreau@gmail.com>
Date: Fri, 1 Nov 2013 18:32:36 -0400
Subject: [PATCH] libwinpr-crt: added SecureZeroMemory

---
 winpr/include/winpr/memory.h |  4 +++-
 winpr/libwinpr/crt/memory.c  | 11 +++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/winpr/include/winpr/memory.h b/winpr/include/winpr/memory.h
index c8fbafd68..3a99685a8 100644
--- a/winpr/include/winpr/memory.h
+++ b/winpr/include/winpr/memory.h
@@ -30,9 +30,11 @@
 
 #define CopyMemory(Destination, Source, Length)		memcpy((Destination), (Source), (Length))
 #define MoveMemory(Destination, Source, Length)		memmove((Destination), (Source), (Length))
-#define	 FillMemory(Destination, Length, Fill)		memset((Destination), (Fill), (Length))
+#define	FillMemory(Destination, Length, Fill)		memset((Destination), (Fill), (Length))
 #define ZeroMemory(Destination, Length)			memset((Destination), 0, (Length))
 
+WINPR_API PVOID SecureZeroMemory(PVOID ptr, SIZE_T cnt);
+
 #endif
 
 #include <winpr/heap.h>
diff --git a/winpr/libwinpr/crt/memory.c b/winpr/libwinpr/crt/memory.c
index 39ac0dbe3..d83cf8493 100644
--- a/winpr/libwinpr/crt/memory.c
+++ b/winpr/libwinpr/crt/memory.c
@@ -28,6 +28,17 @@
 
 #ifndef _WIN32
 
+PVOID SecureZeroMemory(PVOID ptr, SIZE_T cnt)
+{
+	volatile BYTE* p = ptr;
 
+	while (cnt--)
+	{
+		*p = 0;
+		p++;
+	}
+
+	return ptr;
+}
 
 #endif