1/*	$NetBSD: t_tcsetpgrp.c,v 1.3 2012/03/18 07:14:08 jruoho Exp $ */
2
3/*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jukka Ruohonen.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#include <sys/cdefs.h>
32__RCSID("$NetBSD: t_tcsetpgrp.c,v 1.3 2012/03/18 07:14:08 jruoho Exp $");
33
34#include <sys/wait.h>
35
36#include <atf-c.h>
37#include <errno.h>
38#include <stdlib.h>
39#include <unistd.h>
40
41ATF_TC(tcsetpgrp_err);
42ATF_TC_HEAD(tcsetpgrp_err, tc)
43{
44	atf_tc_set_md_var(tc, "descr", "Test errors from tcsetpgrp(3)"
45	    " (PR lib/41673)");
46}
47
48ATF_TC_BODY(tcsetpgrp_err, tc)
49{
50	int rv, sta;
51	pid_t pid;
52
53	if (isatty(STDIN_FILENO) == 0)
54		return;
55
56	pid = fork();
57	ATF_REQUIRE(pid >= 0);
58
59	if (pid == 0) {
60
61		/*
62		 * The child process ID doesn't match any active
63		 * process group ID, so the following call should
64		 * fail with EPERM (and not EINVAL).
65		 */
66		errno = 0;
67		rv = tcsetpgrp(STDIN_FILENO, getpid());
68
69		if (rv == 0 || errno != EPERM)
70			_exit(EXIT_FAILURE);
71
72		_exit(EXIT_SUCCESS);
73	}
74
75	(void)wait(&sta);
76
77	if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
78		atf_tc_fail("wrong errno");
79}
80
81ATF_TP_ADD_TCS(tp)
82{
83
84	ATF_TP_ADD_TC(tp, tcsetpgrp_err);
85
86	return atf_no_error();
87}
88