1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) International Business Machines Corp., 2001
4 */
5
6/*
7 * DESCRIPTION
8 * test that msgsnd() enqueues a message correctly.
9 */
10
11#include <errno.h>
12#include <sys/types.h>
13#include <sys/ipc.h>
14#include <sys/msg.h>
15
16#include "tst_test.h"
17#include "tst_safe_sysv_ipc.h"
18#include "tst_clocks.h"
19#include "libnewipc.h"
20
21static key_t msgkey;
22static int queue_id = -1, pid;
23static struct buf {
24	long type;
25	char text[MSGSIZE];
26} rcv_buf, snd_buf = {MSGTYPE, "hello"};
27
28static void verify_msgsnd(void)
29{
30	struct msqid_ds qs_buf;
31	time_t before_snd, after_snd;
32
33	before_snd = tst_get_fs_timestamp();
34	TEST(msgsnd(queue_id, &snd_buf, MSGSIZE, 0));
35	if (TST_RET == -1) {
36		tst_res(TFAIL | TTERRNO, "msgsnd() failed");
37		return;
38	}
39	after_snd = tst_get_fs_timestamp();
40
41	SAFE_MSGCTL(queue_id, IPC_STAT, &qs_buf);
42
43	if (qs_buf.msg_cbytes == MSGSIZE && qs_buf.msg_qnum == 1)
44		tst_res(TPASS, "queue bytes and number of queues matched");
45	else
46		tst_res(TFAIL, "queue bytes or number of queues mismatched");
47
48	if (qs_buf.msg_lspid == pid)
49		tst_res(TPASS, "PID of last msgsnd(2) matched");
50	else
51		tst_res(TFAIL, "PID of last msgsnd(2) mismatched");
52
53	if (qs_buf.msg_stime >= before_snd && qs_buf.msg_stime <= after_snd) {
54		tst_res(TPASS, "msg_stime = %lu in [%lu, %lu]",
55			(unsigned long)qs_buf.msg_stime,
56			(unsigned long)before_snd, (unsigned long)after_snd);
57	} else {
58		tst_res(TFAIL, "msg_stime = %lu out of [%lu, %lu]",
59			(unsigned long)qs_buf.msg_stime,
60			(unsigned long)before_snd, (unsigned long)after_snd);
61	}
62
63	SAFE_MSGRCV(queue_id, &rcv_buf, MSGSIZE, 1, 0);
64}
65
66static void setup(void)
67{
68	msgkey = GETIPCKEY();
69	queue_id = SAFE_MSGGET(msgkey, IPC_CREAT | IPC_EXCL | MSG_RW);
70	pid = getpid();
71}
72
73static void cleanup(void)
74{
75	if (queue_id != -1)
76		SAFE_MSGCTL(queue_id, IPC_RMID, NULL);
77}
78
79static struct tst_test test = {
80	.setup = setup,
81	.cleanup = cleanup,
82	.test_all = verify_msgsnd,
83	.needs_tmpdir = 1
84};
85