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
21 static key_t msgkey;
22 static int queue_id = -1, pid;
23 static struct buf {
24 long type;
25 char text[MSGSIZE];
26 } rcv_buf, snd_buf = {MSGTYPE, "hello"};
27
verify_msgsnd(void)28 static 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
setup(void)66 static void setup(void)
67 {
68 msgkey = GETIPCKEY();
69 queue_id = SAFE_MSGGET(msgkey, IPC_CREAT | IPC_EXCL | MSG_RW);
70 pid = getpid();
71 }
72
cleanup(void)73 static void cleanup(void)
74 {
75 if (queue_id != -1)
76 SAFE_MSGCTL(queue_id, IPC_RMID, NULL);
77 }
78
79 static struct tst_test test = {
80 .setup = setup,
81 .cleanup = cleanup,
82 .test_all = verify_msgsnd,
83 .needs_tmpdir = 1
84 };
85