From e23313b949a529fda2b1e1fd025f00e52248e430 Mon Sep 17 00:00:00 2001
From: delphij <delphij@FreeBSD.org>
Date: Tue, 7 Oct 2014 04:54:11 +0000
Subject: Add explicit_bzero(3) and its kernel counterpart.

Obtained from:	OpenBSD
MFC after:	2 weeks
---
 sys/libkern/explicit_bzero.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 sys/libkern/explicit_bzero.c

(limited to 'sys/libkern/explicit_bzero.c')

diff --git a/sys/libkern/explicit_bzero.c b/sys/libkern/explicit_bzero.c
new file mode 100644
index 0000000..2468c55
--- /dev/null
+++ b/sys/libkern/explicit_bzero.c
@@ -0,0 +1,24 @@
+/*	$OpenBSD: explicit_bzero.c,v 1.3 2014/06/21 02:34:26 matthew Exp $ */
+/*
+ * Public domain.
+ * Written by Matthew Dempsky.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/libkern.h>
+
+__attribute__((weak)) void __explicit_bzero_hook(void *, size_t);
+
+__attribute__((weak)) void
+__explicit_bzero_hook(void *buf, size_t len)
+{
+}
+
+void
+explicit_bzero(void *buf, size_t len)
+{
+	memset(buf, 0, len);
+	__explicit_bzero_hook(buf, len);
+}
-- 
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