From adf3ff49aed68f420fda489b6591e36b75e5c843 Mon Sep 17 00:00:00 2001
From: guenther <guenther@openbsd.org>
Date: Sun, 14 Aug 2016 19:45:24 +0000
Subject: [PATCH] Don't call sysconf() in a loop conditional when the loop
 won't affect it

ok natano@ tedu@
---
 bin/csh/misc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/bin/csh/misc.c b/bin/csh/misc.c
index 3a3ab323090..d62b23db6e6 100644
--- a/bin/csh/misc.c
+++ b/bin/csh/misc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: misc.c,v 1.18 2015/12/26 13:48:38 mestre Exp $	*/
+/*	$OpenBSD: misc.c,v 1.19 2016/08/14 19:45:24 guenther Exp $	*/
 /*	$NetBSD: misc.c,v 1.6 1995/03/21 09:03:09 cgd Exp $	*/
 
 /*-
@@ -170,8 +170,9 @@ void
 closem(void)
 {
     int f;
+    int max = sysconf(_SC_OPEN_MAX);
 
-    for (f = 0; f < sysconf(_SC_OPEN_MAX); f++)
+    for (f = 0; f < max; f++)
 	if (f != SHIN && f != SHOUT && f != SHERR && f != OLDSTD &&
 	    f != FSHTTY)
 	    (void) close(f);
-- 
2.20.1