95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
/* Copyright (C) 2004-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <mqueue.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <support/check.h>
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#include "tst-mqueue.h"
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#define TEST_FUNCTION do_test ()
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static int
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do_test (void)
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{
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if (geteuid () != 0)
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{
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puts ("this test requires root");
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return 0;
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}
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char name[sizeof "/tst-mqueue9-" + sizeof (pid_t) * 3];
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snprintf (name, sizeof (name), "/tst-mqueue9-%u", getpid ());
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struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 };
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mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
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if (q == (mqd_t) -1)
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{
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if (errno == ENOSYS)
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FAIL_UNSUPPORTED ("mq_open not supported");
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printf ("mq_open failed with: %m\n");
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return 1;
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}
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add_temp_mq (name);
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if (seteuid (1) != 0)
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{
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printf ("failed to seteuid (1): %m\n");
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mq_unlink (name);
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return 0;
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}
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int result = 0;
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if (mq_unlink (name) == 0)
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{
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puts ("mq_unlink unexpectedly succeeded");
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result = 1;
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}
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else if (errno != EACCES)
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{
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printf ("mq_unlink did not fail with EACCES: %m\n");
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result = 1;;
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}
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if (seteuid (0) != 0)
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{
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printf ("failed to seteuid (0): %m\n");
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result = 1;
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}
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if (mq_unlink (name) != 0)
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{
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printf ("mq_unlink failed with: %m\n");
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result = 1;
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}
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if (mq_close (q) != 0)
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{
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printf ("mq_close failed with: %m\n");
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result = 1;
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}
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return result;
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}
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#include "../test-skeleton.c"
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