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 
37 ATF_TC(t_exect_null);
38 
39 ATF_TC_HEAD(t_exect_null, tc)
40 {
41 	atf_tc_set_md_var(tc, "descr",
42 	    "Tests an empty exect(2) executing");
43 }
44 
45 static volatile sig_atomic_t caught = 0;
46 
47 static void
48 sigtrap_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 
56 ATF_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 
85 ATF_TP_ADD_TCS(tp)
86 {
87 	ATF_TP_ADD_TC(tp, t_exect_null);
88 
89 	return atf_no_error();
90 }
91