1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 */
5
6 /*\
7 * [Description]
8 *
9 * Create a message queue, write a message to it and
10 * read it back.
11 */
12
13 #include <errno.h>
14 #include <string.h>
15 #include <sys/types.h>
16 #include <sys/ipc.h>
17 #include <sys/msg.h>
18
19 #include "tst_test.h"
20 #include "tst_safe_sysv_ipc.h"
21 #include "libnewipc.h"
22
23 static int queue_id = -1;
24 static key_t msgkey;
25
26 static struct buf {
27 long type;
28 char text[MSGSIZE];
29 } rcv_buf, snd_buf = {MSGTYPE, "hello, world"};
30
verify_msgget(void)31 static void verify_msgget(void)
32 {
33 TEST(msgget(msgkey, IPC_CREAT | MSG_RW));
34 if (TST_RET == -1) {
35 tst_res(TFAIL | TTERRNO, "msgget() failed");
36 return;
37 }
38
39 queue_id = TST_RET;
40
41 SAFE_MSGSND(queue_id, &snd_buf, MSGSIZE, 0);
42
43 SAFE_MSGRCV(queue_id, &rcv_buf, MSGSIZE, MSGTYPE, IPC_NOWAIT);
44
45 if (strcmp(snd_buf.text, rcv_buf.text) == 0)
46 tst_res(TPASS, "message received = message sent");
47 else
48 tst_res(TFAIL, "message received != message sent");
49 }
50
setup(void)51 static void setup(void)
52 {
53 msgkey = GETIPCKEY();
54 }
55
cleanup(void)56 static void cleanup(void)
57 {
58 if (queue_id != -1)
59 SAFE_MSGCTL(queue_id, IPC_RMID, NULL);
60 }
61
62 static struct tst_test test = {
63 .setup = setup,
64 .cleanup = cleanup,
65 .test_all = verify_msgget,
66 .needs_tmpdir = 1
67 };
68