[src/trunk]: src/tests/lib/libc/ssp PR/51894: Ngie Cooper: Use /dev/zero to r...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/612eedefdf1a
branches:  trunk
changeset: 820952:612eedefdf1a
user:      christos <christos%NetBSD.org@localhost>
date:      Mon Jan 16 16:35:57 2017 +0000

description:
PR/51894: Ngie Cooper: Use /dev/zero to read instead of stdin

diffstat:

 tests/lib/libc/ssp/h_read.c |  15 +++++++++++----
 1 files changed, 11 insertions(+), 4 deletions(-)

diffs (38 lines):

diff -r 81a48071cf37 -r 612eedefdf1a tests/lib/libc/ssp/h_read.c
--- a/tests/lib/libc/ssp/h_read.c       Mon Jan 16 16:34:24 2017 +0000
+++ b/tests/lib/libc/ssp/h_read.c       Mon Jan 16 16:35:57 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: h_read.c,v 1.1 2010/12/27 02:04:19 pgoyette Exp $ */
+/* $NetBSD: h_read.c,v 1.2 2017/01/16 16:35:57 christos Exp $ */
 
 /*
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -29,9 +29,11 @@
 #include <sys/cdefs.h>
 __COPYRIGHT("@(#) Copyright (c) 2008\
  The NetBSD Foundation, inc. All rights reserved.");
-__RCSID("$NetBSD: h_read.c,v 1.1 2010/12/27 02:04:19 pgoyette Exp $");
+__RCSID("$NetBSD: h_read.c,v 1.2 2017/01/16 16:35:57 christos Exp $");
 
 #include <sys/param.h>
+#include <fcntl.h>
+#include <paths.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
@@ -40,8 +42,13 @@
 main(int argc, char *argv[])
 {
        char b[MAXPATHLEN];
+       int fd, n;
        size_t len = atoi(argv[1]);
-       (void)read(0, b, len);
+
+       if ((fd = open(_PATH_DEVZERO, O_RDONLY)) == -1)
+               abort();
+       if ((n = read(fd, b, len)) == -1)
+               abort();
        (void)printf("%s\n", b);
-       return 0;
+       return (0);
 }