From 48adfa3dbdcb53bdfd79455f968106400d4431d1 Mon Sep 17 00:00:00 2001
From: deraadt <deraadt@openbsd.org>
Date: Tue, 6 Oct 2015 13:49:33 +0000
Subject: [PATCH] only modifies data, stdin to stdout, so tame "stdout"

---
 usr.bin/tr/tr.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/usr.bin/tr/tr.c b/usr.bin/tr/tr.c
index c74fb1c4801..767660d57e8 100644
--- a/usr.bin/tr/tr.c
+++ b/usr.bin/tr/tr.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: tr.c,v 1.17 2014/06/03 20:57:23 millert Exp $	*/
+/*	$OpenBSD: tr.c,v 1.18 2015/10/06 13:49:33 deraadt Exp $	*/
 /*	$NetBSD: tr.c,v 1.5 1995/08/31 22:13:48 jtc Exp $	*/
 
 /*
@@ -87,6 +87,9 @@ main(int argc, char *argv[])
 	int ch, cnt, lastch, *p;
 	int cflag, dflag, sflag, isstring2;
 
+	if (tame("stdio", NULL) == -1)
+		err(1, "tame");
+
 	cflag = dflag = sflag = 0;
 	while ((ch = getopt(argc, argv, "Ccds")) != -1)
 		switch(ch) {
-- 
2.20.1