1/*	$NetBSD: fa_spawn_utils.c,v 1.1 2021/11/07 15:46:20 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2012 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles Zhang <charles@NetBSD.org> and
9 * Martin Husemann <martin@NetBSD.org>.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32#include <sys/cdefs.h>
33__RCSID("$NetBSD: fa_spawn_utils.c,v 1.1 2021/11/07 15:46:20 christos Exp $");
34
35#include <atf-c.h>
36#include <stdio.h>
37#include <errno.h>
38#include <string.h>
39#include <sys/stat.h>
40
41#include "fa_spawn_utils.h"
42
43off_t
44filesize(const char * restrict fname)
45{
46	struct stat st;
47	int err;
48
49	err = stat(fname, &st);
50	ATF_REQUIRE_MSG(err == 0, "Can't stat %s (%s)", fname, strerror(errno));
51	return st.st_size;
52}
53
54void
55empty_outfile(const char * restrict fname)
56{
57	FILE *f;
58
59	f = fopen(fname, "w");
60	ATF_REQUIRE_MSG(f != NULL, "Can't open %s (%s)", fname, strerror(errno));
61	fclose(f);
62}
63