1/*	$NetBSD: t_exect.c,v 1.6 2016/12/12 10:34:55 joerg Exp $	*/
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <atf-c.h>
30
31#include <errno.h>
32#include <signal.h>
33#include <stddef.h>
34#include <stdio.h>
35#include <unistd.h>
36
37ATF_TC(t_exect_null);
38
39ATF_TC_HEAD(t_exect_null, tc)
40{
41	atf_tc_set_md_var(tc, "descr",
42	    "Tests an empty exect(2) executing");
43}
44
45static volatile sig_atomic_t caught = 0;
46
47static void
48sigtrap_handler(int sig, siginfo_t *info, void *ctx)
49{
50	ATF_REQUIRE_EQ(sig, SIGTRAP);
51	ATF_REQUIRE_EQ(info->si_code, TRAP_TRACE);
52
53	++caught;
54}
55
56ATF_TC_BODY(t_exect_null, tc)
57{
58	struct sigaction act;
59
60	/*
61	 * Currently exect(3) is misdesigned -- see PR port-amd64/51700 and it
62	 * needs to be redone from scratch.
63	 *
64	 * This test affects amd64 releng machines causing tests to hang or
65	 * fail. As there is little point to test interface that is still not,
66	 * designed and implemented and is breaking tests - skip it
67	 * unconditionally for all ports.
68	 */
69	/* Prevent static analysis from requiring t_exec_null to be __dead. */
70	if (!caught)
71		atf_tc_skip("exect(3) misdesigned and hangs - PR port-amd64/51700");
72
73	ATF_REQUIRE(sigemptyset(&act.sa_mask) == 0);
74	act.sa_sigaction = sigtrap_handler;
75	act.sa_flags = SA_SIGINFO;
76
77	ATF_REQUIRE(sigaction(SIGTRAP, &act, 0) == 0);
78
79	ATF_REQUIRE_ERRNO(EFAULT, exect(NULL, NULL, NULL) == -1);
80
81	ATF_REQUIRE_EQ_MSG(caught, 1, "expected caught (1) != received (%d)",
82	    (int)caught);
83}
84
85ATF_TP_ADD_TCS(tp)
86{
87	ATF_TP_ADD_TC(tp, t_exect_null);
88
89	return atf_no_error();
90}
91