1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/* Basic tests for SYSV message queue functions.
Copyright (C) 2016-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <test-sysvipc.h>
#include <support/support.h>
#include <support/check.h>
#include <support/temp_file.h>
#define TEXTSIZE 32
struct msgbuf_t
{
#ifdef _GNU_SOURCE
__syscall_slong_t type;
#else
long type;
#endif
char buf[TEXTSIZE];
};
#define MSGTYPE 0x01020304
#define MSGDATA "0123456789"
/* These are for the temporary file we generate. */
static char *name;
static int msqid;
static void
remove_msq (void)
{
/* Enforce message queue removal in case of early test failure.
Ignore error since the msgq may already have being removed. */
msgctl (msqid, IPC_RMID, NULL);
}
static void
do_prepare (int argc, char *argv[])
{
int fd = create_temp_file ("tst-sysvmsg.", &name);
if (fd == -1)
FAIL_EXIT1 ("cannot create temporary file (errno=%d)", errno);
}
#define PREPARE do_prepare
/* It is not an extensive test, but rather a functional one aimed to check
correct parameter passing on kernel. */
#define MSGQ_MODE 0644
static int
do_test (void)
{
atexit (remove_msq);
key_t key = ftok (name, 'G');
if (key == -1)
FAIL_EXIT1 ("ftok failed");
msqid = msgget (key, MSGQ_MODE | IPC_CREAT);
if (msqid == -1)
{
if (errno == ENOSYS)
FAIL_UNSUPPORTED ("msgget not supported");
FAIL_EXIT1 ("msgget failed (errno=%d)", errno);
}
TEST_COMPARE (msgctl (msqid, first_msg_invalid_cmd (), NULL), -1);
TEST_COMPARE (errno, EINVAL);
/* Get message queue kernel information and do some sanity checks. */
struct msqid_ds msginfo;
if (msgctl (msqid, IPC_STAT, &msginfo) == -1)
FAIL_EXIT1 ("msgctl with IPC_STAT failed (errno=%d)", errno);
if (msginfo.msg_perm.__key != key)
FAIL_EXIT1 ("msgid_ds::msg_perm::key (%d) != %d",
(int) msginfo.msg_perm.__key, (int) key);
if (msginfo.msg_perm.mode != MSGQ_MODE)
FAIL_EXIT1 ("msgid_ds::msg_perm::mode (%o) != %o",
msginfo.msg_perm.mode, MSGQ_MODE);
if (msginfo.msg_qnum != 0)
FAIL_EXIT1 ("msgid_ds::msg_qnum (%lu) != 0",
(long unsigned) msginfo.msg_qnum);
/* Check if last argument (IPC_NOWAIT) is correctly handled. */
struct msgbuf_t msg2rcv = { 0 };
if (msgrcv (msqid, &msg2rcv, sizeof (msg2rcv.buf), MSGTYPE,
IPC_NOWAIT) == -1
&& errno != ENOMSG)
FAIL_EXIT1 ("msgrcv failed (errno=%d)", errno);
struct msgbuf_t msg2snd = { MSGTYPE, MSGDATA };
if (msgsnd (msqid, &msg2snd, sizeof (msg2snd.buf), 0) == -1)
FAIL_EXIT1 ("msgsnd failed (errno=%d)", errno);
if (msgrcv (msqid, &msg2rcv, sizeof (msg2rcv.buf), MSGTYPE, 0) == -1)
FAIL_EXIT1 ("msgrcv failed (errno=%d)", errno);
int ret = 0;
if (strncmp (msg2snd.buf, msg2rcv.buf, TEXTSIZE) != 0)
ret = 1;
if (msgctl (msqid, IPC_RMID, NULL) == -1)
FAIL_EXIT1 ("msgctl failed");
return ret;
}
#include <support/test-driver.c>
|
