1*11be35a1SLionel Sambuc /* $NetBSD: h_spawnattr.c,v 1.1 2012/02/13 21:03:08 martin Exp $ */
2*11be35a1SLionel Sambuc
3*11be35a1SLionel Sambuc /*-
4*11be35a1SLionel Sambuc * Copyright (c) 2012 The NetBSD Foundation, Inc.
5*11be35a1SLionel Sambuc * All rights reserved.
6*11be35a1SLionel Sambuc *
7*11be35a1SLionel Sambuc * This code is derived from software contributed to The NetBSD Foundation
8*11be35a1SLionel Sambuc * by Charles Zhang <charles@NetBSD.org> and
9*11be35a1SLionel Sambuc * Martin Husemann <martin@NetBSD.org>.
10*11be35a1SLionel Sambuc *
11*11be35a1SLionel Sambuc * Redistribution and use in source and binary forms, with or without
12*11be35a1SLionel Sambuc * modification, are permitted provided that the following conditions
13*11be35a1SLionel Sambuc * are met:
14*11be35a1SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
15*11be35a1SLionel Sambuc * notice, this list of conditions and the following disclaimer.
16*11be35a1SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
17*11be35a1SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
18*11be35a1SLionel Sambuc * documentation and/or other materials provided with the distribution.
19*11be35a1SLionel Sambuc *
20*11be35a1SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21*11be35a1SLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22*11be35a1SLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23*11be35a1SLionel Sambuc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24*11be35a1SLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25*11be35a1SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26*11be35a1SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27*11be35a1SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28*11be35a1SLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29*11be35a1SLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30*11be35a1SLionel Sambuc * POSSIBILITY OF SUCH DAMAGE.
31*11be35a1SLionel Sambuc */
32*11be35a1SLionel Sambuc
33*11be35a1SLionel Sambuc #include <errno.h>
34*11be35a1SLionel Sambuc #include <stdio.h>
35*11be35a1SLionel Sambuc #include <stdlib.h>
36*11be35a1SLionel Sambuc #include <signal.h>
37*11be35a1SLionel Sambuc #include <unistd.h>
38*11be35a1SLionel Sambuc
39*11be35a1SLionel Sambuc /*
40*11be35a1SLionel Sambuc * Helper to test the hardcoded assumptions from t_spawnattr.c
41*11be35a1SLionel Sambuc * Exit with apropriate exit status and print diagnostics to
42*11be35a1SLionel Sambuc * stderr explaining what is wrong.
43*11be35a1SLionel Sambuc */
44*11be35a1SLionel Sambuc int
main(int argc,char ** argv)45*11be35a1SLionel Sambuc main(int argc, char **argv)
46*11be35a1SLionel Sambuc {
47*11be35a1SLionel Sambuc int parent_pipe, res = EXIT_SUCCESS;
48*11be35a1SLionel Sambuc sigset_t sig;
49*11be35a1SLionel Sambuc struct sigaction act;
50*11be35a1SLionel Sambuc ssize_t rd;
51*11be35a1SLionel Sambuc char tmp;
52*11be35a1SLionel Sambuc
53*11be35a1SLionel Sambuc sigemptyset(&sig);
54*11be35a1SLionel Sambuc if (sigprocmask(0, NULL, &sig) < 0) {
55*11be35a1SLionel Sambuc fprintf(stderr, "%s: sigprocmask error\n", getprogname());
56*11be35a1SLionel Sambuc res = EXIT_FAILURE;
57*11be35a1SLionel Sambuc }
58*11be35a1SLionel Sambuc if (!sigismember(&sig, SIGUSR1)) {
59*11be35a1SLionel Sambuc fprintf(stderr, "%s: SIGUSR not in procmask\n", getprogname());
60*11be35a1SLionel Sambuc res = EXIT_FAILURE;
61*11be35a1SLionel Sambuc }
62*11be35a1SLionel Sambuc if (sigaction(SIGUSR1, NULL, &act) < 0) {
63*11be35a1SLionel Sambuc fprintf(stderr, "%s: sigaction error\n", getprogname());
64*11be35a1SLionel Sambuc res = EXIT_FAILURE;
65*11be35a1SLionel Sambuc }
66*11be35a1SLionel Sambuc if (act.sa_sigaction != (void *)SIG_DFL) {
67*11be35a1SLionel Sambuc fprintf(stderr, "%s: SIGUSR1 action != SIG_DFL\n",
68*11be35a1SLionel Sambuc getprogname());
69*11be35a1SLionel Sambuc res = EXIT_FAILURE;
70*11be35a1SLionel Sambuc }
71*11be35a1SLionel Sambuc
72*11be35a1SLionel Sambuc if (argc >= 2) {
73*11be35a1SLionel Sambuc parent_pipe = atoi(argv[1]);
74*11be35a1SLionel Sambuc if (parent_pipe > 2) {
75*11be35a1SLionel Sambuc printf("%s: waiting for command from parent on pipe "
76*11be35a1SLionel Sambuc "%d\n", getprogname(), parent_pipe);
77*11be35a1SLionel Sambuc rd = read(parent_pipe, &tmp, 1);
78*11be35a1SLionel Sambuc if (rd == 1) {
79*11be35a1SLionel Sambuc printf("%s: got command %c from parent\n",
80*11be35a1SLionel Sambuc getprogname(), tmp);
81*11be35a1SLionel Sambuc } else if (rd == -1) {
82*11be35a1SLionel Sambuc printf("%s: %d is no pipe, errno %d\n",
83*11be35a1SLionel Sambuc getprogname(), parent_pipe, errno);
84*11be35a1SLionel Sambuc res = EXIT_FAILURE;
85*11be35a1SLionel Sambuc }
86*11be35a1SLionel Sambuc }
87*11be35a1SLionel Sambuc }
88*11be35a1SLionel Sambuc
89*11be35a1SLionel Sambuc return res;
90*11be35a1SLionel Sambuc }
91