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

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