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 * create a message queue, write a message to it and
21 * read it back.
22 */
23
24 #include <errno.h>
25 #include <string.h>
26 #include <sys/types.h>
27 #include <sys/ipc.h>
28 #include <sys/msg.h>
29
30 #include "tst_test.h"
31 #include "tst_safe_sysv_ipc.h"
32 #include "libnewipc.h"
33
34 static int queue_id = -1;
35 static key_t msgkey;
36
37 static struct buf {
38 long type;
39 char text[MSGSIZE];
40 } rcv_buf, snd_buf = {MSGTYPE, "hello, world"};
41
verify_msgget(void)42 static void verify_msgget(void)
43 {
44 TEST(msgget(msgkey, IPC_CREAT | MSG_RW));
45 if (TEST_RETURN == -1) {
46 tst_res(TFAIL | TTERRNO, "msgget() failed");
47 return;
48 }
49
50 queue_id = TEST_RETURN;
51
52 SAFE_MSGSND(queue_id, &snd_buf, MSGSIZE, 0);
53
54 SAFE_MSGRCV(queue_id, &rcv_buf, MSGSIZE, MSGTYPE, IPC_NOWAIT);
55
56 if (strcmp(snd_buf.text, rcv_buf.text) == 0)
57 tst_res(TPASS, "message received = message sent");
58 else
59 tst_res(TFAIL, "message received != message sent");
60 }
61
setup(void)62 static void setup(void)
63 {
64 msgkey = GETIPCKEY();
65 }
66
cleanup(void)67 static void cleanup(void)
68 {
69 if (queue_id != -1)
70 SAFE_MSGCTL(queue_id, IPC_RMID, NULL);
71 }
72
73 static struct tst_test test = {
74 .tid = "msgget01",
75 .setup = setup,
76 .cleanup = cleanup,
77 .test_all = verify_msgget,
78 .needs_tmpdir = 1
79 };
80