109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
/* Test all open message queues descriptors are closed during exec*.
|
|
Copyright (C) 2004-2017 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <mqueue.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/wait.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
#define OPT_AFTEREXEC 20000
|
|
|
|
static mqd_t after_exec = (mqd_t) -1;
|
|
|
|
#define CMDLINE_OPTIONS \
|
|
{ "after-exec", required_argument, NULL, OPT_AFTEREXEC },
|
|
|
|
#define CMDLINE_PROCESS \
|
|
case OPT_AFTEREXEC: \
|
|
after_exec = (mqd_t) strtoul (optarg, NULL, 0); \
|
|
break;
|
|
|
|
static int
|
|
do_after_exec (void)
|
|
{
|
|
int result = 0;
|
|
|
|
struct mq_attr attr;
|
|
if (mq_getattr (after_exec, &attr) == 0)
|
|
{
|
|
puts ("mq_getattr after exec unexpectedly succeeded");
|
|
result = 1;
|
|
}
|
|
else if (errno != EBADF)
|
|
{
|
|
printf ("mq_getattr after exec did not fail with EBADF: %m\n");
|
|
result = 1;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static int
|
|
do_test (int argc, char **argv)
|
|
{
|
|
if (after_exec != (mqd_t) -1)
|
|
return do_after_exec ();
|
|
|
|
char name[sizeof "/tst-mqueue7-" + sizeof (pid_t) * 3];
|
|
snprintf (name, sizeof (name), "/tst-mqueue7-%u", getpid ());
|
|
|
|
struct mq_attr attr = { .mq_maxmsg = 10, .mq_msgsize = 1 };
|
|
mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_WRONLY, 0600, &attr);
|
|
|
|
if (q == (mqd_t) -1)
|
|
{
|
|
printf ("mq_open failed with: %m\n");
|
|
return 0;
|
|
}
|
|
else if (mq_unlink (name) != 0)
|
|
{
|
|
printf ("mq_unlink failed with: %m\n");
|
|
return 1;
|
|
}
|
|
|
|
if (mq_getattr (q, &attr) != 0)
|
|
{
|
|
printf ("mq_getattr failed: %m\n");
|
|
return 1;
|
|
}
|
|
|
|
char after_exec_arg[sizeof "--after-exec=0x" + sizeof (long) * 3];
|
|
snprintf (after_exec_arg, sizeof (after_exec_arg),
|
|
"--after-exec=0x%lx", (long) q);
|
|
|
|
const char *newargv[argc + 2];
|
|
for (int i = 1; i < argc; ++i)
|
|
newargv[i - 1] = argv[i];
|
|
newargv[argc - 1] = "--direct";
|
|
newargv[argc] = after_exec_arg;
|
|
newargv[argc + 1] = NULL;
|
|
|
|
/* Verify that exec* has the effect of mq_close (q). */
|
|
execv (newargv[0], (char * const *) newargv);
|
|
printf ("execv failed: %m\n");
|
|
return 1;
|
|
}
|
|
|
|
#include "../test-skeleton.c"
|