From 53f37065d5d871b8dee23d08cc428c30f031893d Mon Sep 17 00:00:00 2001
From: Theo de Raadt <deraadt@cvs.openbsd.org>
Date: Sun, 4 Oct 2015 16:01:08 +0000
Subject: expr can use tame "stdio" ok semarie

---
 bin/expr/expr.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'bin/expr')

diff --git a/bin/expr/expr.c b/bin/expr/expr.c
index b5cd6063b9a..7558a0f841b 100644
--- a/bin/expr/expr.c
+++ b/bin/expr/expr.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: expr.c,v 1.20 2015/08/11 17:15:46 deraadt Exp $	*/
+/*	$OpenBSD: expr.c,v 1.21 2015/10/04 16:01:07 deraadt Exp $	*/
 /*	$NetBSD: expr.c,v 1.3.6.1 1996/06/04 20:41:47 cgd Exp $	*/
 
 /*
@@ -12,6 +12,7 @@
 #include <limits.h>
 #include <locale.h>
 #include <ctype.h>
+#include <unistd.h>
 #include <regex.h>
 #include <err.h>
 
@@ -500,6 +501,9 @@ main(int argc, char *argv[])
 
 	(void) setlocale(LC_ALL, "");
 
+	if (tame("stdio", NULL) == -1)
+		err(1, "tame");
+
 	if (argc > 1 && !strcmp(argv[1], "--"))
 		argv++;
 
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