minix/tests/lib/libc/gen/posix_spawn/h_spawnattr.c

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/* $NetBSD: h_spawnattr.c,v 1.1 2012/02/13 21:03:08 martin Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles Zhang <charles@NetBSD.org> and
* Martin Husemann <martin@NetBSD.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
/*
* Helper to test the hardcoded assumptions from t_spawnattr.c
* Exit with apropriate exit status and print diagnostics to
* stderr explaining what is wrong.
*/
int
main(int argc, char **argv)
{
int parent_pipe, res = EXIT_SUCCESS;
sigset_t sig;
struct sigaction act;
ssize_t rd;
char tmp;
sigemptyset(&sig);
if (sigprocmask(0, NULL, &sig) < 0) {
fprintf(stderr, "%s: sigprocmask error\n", getprogname());
res = EXIT_FAILURE;
}
if (!sigismember(&sig, SIGUSR1)) {
fprintf(stderr, "%s: SIGUSR not in procmask\n", getprogname());
res = EXIT_FAILURE;
}
if (sigaction(SIGUSR1, NULL, &act) < 0) {
fprintf(stderr, "%s: sigaction error\n", getprogname());
res = EXIT_FAILURE;
}
if (act.sa_sigaction != (void *)SIG_DFL) {
fprintf(stderr, "%s: SIGUSR1 action != SIG_DFL\n",
getprogname());
res = EXIT_FAILURE;
}
if (argc >= 2) {
parent_pipe = atoi(argv[1]);
if (parent_pipe > 2) {
printf("%s: waiting for command from parent on pipe "
"%d\n", getprogname(), parent_pipe);
rd = read(parent_pipe, &tmp, 1);
if (rd == 1) {
printf("%s: got command %c from parent\n",
getprogname(), tmp);
} else if (rd == -1) {
printf("%s: %d is no pipe, errno %d\n",
getprogname(), parent_pipe, errno);
res = EXIT_FAILURE;
}
}
}
return res;
}