1 /*
2 * Copyright (c) International Business Machines Corp., 2001
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
12 * the GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program.
16 */
17
18 /*
19 * DESCRIPTION
20 * test that msgsnd() enqueues a message correctly.
21 */
22
23 #include <errno.h>
24 #include <sys/types.h>
25 #include <sys/ipc.h>
26 #include <sys/msg.h>
27
28 #include "tst_test.h"
29 #include "tst_safe_sysv_ipc.h"
30 #include "libnewipc.h"
31
32 static key_t msgkey;
33 static int queue_id = -1;
34 static struct buf {
35 long type;
36 char text[MSGSIZE];
37 } rcv_buf, snd_buf = {MSGTYPE, "hello"};
38
verify_msgsnd(void)39 static void verify_msgsnd(void)
40 {
41 struct msqid_ds qs_buf;
42
43 TEST(msgsnd(queue_id, &snd_buf, MSGSIZE, 0));
44 if (TEST_RETURN == -1) {
45 tst_res(TFAIL | TTERRNO, "msgsnd() failed");
46 return;
47 }
48
49 SAFE_MSGCTL(queue_id, IPC_STAT, &qs_buf);
50
51 if (qs_buf.msg_cbytes == MSGSIZE && qs_buf.msg_qnum == 1)
52 tst_res(TPASS, "queue bytes and number of queues matched");
53 else
54 tst_res(TFAIL, "queue bytes or number of queues mismatched");
55
56 SAFE_MSGRCV(queue_id, &rcv_buf, MSGSIZE, 1, 0);
57 }
58
setup(void)59 static void setup(void)
60 {
61 msgkey = GETIPCKEY();
62
63 queue_id = SAFE_MSGGET(msgkey, IPC_CREAT | IPC_EXCL | MSG_RW);
64 }
65
cleanup(void)66 static void cleanup(void)
67 {
68 if (queue_id != -1)
69 SAFE_MSGCTL(queue_id, IPC_RMID, NULL);
70 }
71
72 static struct tst_test test = {
73 .tid = "msgsnd01",
74 .setup = setup,
75 .cleanup = cleanup,
76 .test_all = verify_msgsnd,
77 .needs_tmpdir = 1
78 };
79