blob: 9f462b67219826468ddfeed41265ab7907bce7ec [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) International Business Machines Corp., 2001
*/
/*
* DESCRIPTION
* Tests if EIDRM is returned when message queue was removed while
* msgsnd() was trying to send a message.
*/
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include "tst_test.h"
#include "tst_safe_sysv_ipc.h"
#include "libnewipc.h"
static key_t msgkey;
static int queue_id = -1;
static struct buf {
long type;
char text[MSGSIZE];
} snd_buf = {1, "hello"};
static void verify_msgsnd(void)
{
TEST(msgsnd(queue_id, &snd_buf, MSGSIZE, 0));
if (TST_RET != -1) {
tst_res(TFAIL, "msgsnd() succeeded unexpectedly");
return;
}
if (TST_ERR == EIDRM) {
tst_res(TPASS | TTERRNO, "msgsnd() failed as expected");
} else {
tst_res(TFAIL | TTERRNO,
"msgsnd() failed unexpectedly, expected EIDRM");
}
}
static void do_test(void)
{
pid_t pid;
queue_id = SAFE_MSGGET(msgkey, IPC_CREAT | IPC_EXCL | MSG_RW);
while (msgsnd(queue_id, &snd_buf, MSGSIZE, IPC_NOWAIT) != -1)
snd_buf.type += 1;
pid = SAFE_FORK();
if (!pid) {
verify_msgsnd();
_exit(0);
}
TST_PROCESS_STATE_WAIT(pid, 'S', 0);
SAFE_MSGCTL(queue_id, IPC_RMID, NULL);
tst_reap_children();
}
static void setup(void)
{
msgkey = GETIPCKEY();
}
static void cleanup(void)
{
if (queue_id != -1)
SAFE_MSGCTL(queue_id, IPC_RMID, NULL);
}
static struct tst_test test = {
.needs_tmpdir = 1,
.needs_root = 1,
.forks_child = 1,
.setup = setup,
.cleanup = cleanup,
.test_all = do_test
};