From c66d80a4381f0b492fd62e87deb88944b77efd22 Mon Sep 17 00:00:00 2001
From: Brent Cook <bcook@openbsd.org>
Date: Mon, 3 Aug 2015 06:56:59 -0500
Subject: add win32-specific explicit_bzero implementation

---
 crypto/Makefile.am                 |  4 ++++
 crypto/compat/explicit_bzero_win.c | 13 +++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 crypto/compat/explicit_bzero_win.c

(limited to 'crypto')

diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index b988d77..26d30d9 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -34,8 +34,12 @@ libcompatnoopt_la_CFLAGS = -O0
 libcompatnoopt_la_SOURCES =
 
 if !HAVE_EXPLICIT_BZERO
+if HOST_WIN
+libcompatnoopt_la_SOURCES += compat/explicit_bzero_win.c
+else
 libcompatnoopt_la_SOURCES += compat/explicit_bzero.c
 endif
+endif
 
 # other compatibility functions
 libcompat_la_SOURCES =
diff --git a/crypto/compat/explicit_bzero_win.c b/crypto/compat/explicit_bzero_win.c
new file mode 100644
index 0000000..0d09d90
--- /dev/null
+++ b/crypto/compat/explicit_bzero_win.c
@@ -0,0 +1,13 @@
+/*
+ * Public domain.
+ * Win32 explicit_bzero compatibility shim.
+ */
+
+#include <windows.h>
+#include <string.h>
+
+void
+explicit_bzero(void *buf, size_t len)
+{
+	SecureZeroMemory(buf, len);
+}
-- 
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