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/*
* Copyright (c) 2015 Andreas Schwab <schwab@suse.de>
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 "tests.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/sem.h>
union semun {
int val; /* Value for SETVAL */
struct semid_ds *buf; /* Buffer for IPC_STAT, IPC_SET */
unsigned short *array; /* Array for GETALL, SETALL */
struct seminfo *__buf; /* Buffer for IPC_INFO
(Linux-specific) */
};
static int id = -1;
static void
cleanup(void)
{
semctl(id, 0, IPC_RMID, 0);
printf("semctl\\(%d, 0, (IPC_64\\|)?IPC_RMID, \\[?0\\]?\\) += 0\n", id);
id = -1;
}
int
main(void)
{
int rc;
union semun un;
struct semid_ds ds;
struct seminfo info;
id = semget(IPC_PRIVATE, 1, 0600);
if (id < 0)
perror_msg_and_skip("semget");
printf("semget\\(IPC_PRIVATE, 1, 0600\\) += %d\n", id);
atexit(cleanup);
un.buf = &ds;
if (semctl(id, 0, IPC_STAT, un))
perror_msg_and_skip("semctl IPC_STAT");
printf("semctl\\(%d, 0, (IPC_64\\|)?IPC_STAT, \\[?%p\\]?\\) += 0\n",
id, &ds);
un.__buf = &info;
int max = semctl(0, 0, SEM_INFO, un);
if (max < 0)
perror_msg_and_skip("semctl SEM_INFO");
printf("semctl\\(0, 0, (IPC_64\\|)?SEM_INFO, \\[?%p\\]?\\) += %d\n",
&info, max);
un.buf = &ds;
rc = semctl(id, 0, SEM_STAT, un);
if (rc != id) {
/*
* In linux < v2.6.24-rc1 the first argument must be
* an index in the kernel's internal array.
*/
if (-1 != rc || EINVAL != errno)
perror_msg_and_skip("semctl SEM_STAT");
printf("semctl\\(%d, 0, (IPC_64\\|)?SEM_STAT, \\[?%p\\]?\\)"
" += -1 EINVAL \\(%m\\)\n", id, &ds);
} else {
printf("semctl\\(%d, 0, (IPC_64\\|)?SEM_STAT, \\[?%p\\]?\\)"
" += %d\n", id, &ds, id);
}
return 0;
}