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/* Copyright (C) 2004-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <mqueue.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "tst-mqueue.h"
#define TEST_FUNCTION do_test ()
static int
do_test (void)
{
if (geteuid () != 0)
{
puts ("this test requires root");
return 0;
}
char name[sizeof "/tst-mqueue9-" + sizeof (pid_t) * 3];
snprintf (name, sizeof (name), "/tst-mqueue9-%u", getpid ());
struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 };
mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
if (q == (mqd_t) -1)
{
printf ("mq_open failed with: %m\n");
return 0;
}
else
add_temp_mq (name);
if (seteuid (1) != 0)
{
printf ("failed to seteuid (1): %m\n");
mq_unlink (name);
return 0;
}
int result = 0;
if (mq_unlink (name) == 0)
{
puts ("mq_unlink unexpectedly succeeded");
result = 1;
}
else if (errno != EACCES)
{
printf ("mq_unlink did not fail with EACCES: %m\n");
result = 1;;
}
if (seteuid (0) != 0)
{
printf ("failed to seteuid (0): %m\n");
result = 1;
}
if (mq_unlink (name) != 0)
{
printf ("mq_unlink failed with: %m\n");
result = 1;
}
if (mq_close (q) != 0)
{
printf ("mq_close failed with: %m\n");
result = 1;
}
return result;
}
#include "../test-skeleton.c"
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