1 | /* Basic tests for SYSV message queue functions. |
2 | Copyright (C) 2016-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <stdio.h> |
20 | #include <stdlib.h> |
21 | #include <errno.h> |
22 | #include <string.h> |
23 | #include <sys/types.h> |
24 | #include <sys/ipc.h> |
25 | #include <sys/msg.h> |
26 | |
27 | #include <test-sysvipc.h> |
28 | |
29 | #include <support/support.h> |
30 | #include <support/check.h> |
31 | #include <support/temp_file.h> |
32 | |
33 | #define TEXTSIZE 32 |
34 | struct msgbuf_t |
35 | { |
36 | #ifdef _GNU_SOURCE |
37 | __syscall_slong_t type; |
38 | #else |
39 | long type; |
40 | #endif |
41 | char buf[TEXTSIZE]; |
42 | }; |
43 | |
44 | #define MSGTYPE 0x01020304 |
45 | #define MSGDATA "0123456789" |
46 | |
47 | /* These are for the temporary file we generate. */ |
48 | static char *name; |
49 | static int msqid; |
50 | |
51 | static void |
52 | remove_msq (void) |
53 | { |
54 | /* Enforce message queue removal in case of early test failure. |
55 | Ignore error since the msgq may already have being removed. */ |
56 | msgctl (msqid: msqid, IPC_RMID, NULL); |
57 | } |
58 | |
59 | static void |
60 | do_prepare (int argc, char *argv[]) |
61 | { |
62 | int fd = create_temp_file (base: "tst-sysvmsg." , filename: &name); |
63 | if (fd == -1) |
64 | FAIL_EXIT1 ("cannot create temporary file (errno=%d)" , errno); |
65 | } |
66 | |
67 | #define PREPARE do_prepare |
68 | |
69 | /* It is not an extensive test, but rather a functional one aimed to check |
70 | correct parameter passing on kernel. */ |
71 | |
72 | #define MSGQ_MODE 0644 |
73 | |
74 | static int |
75 | do_test (void) |
76 | { |
77 | atexit (func: remove_msq); |
78 | |
79 | key_t key = ftok (pathname: name, proj_id: 'G'); |
80 | if (key == -1) |
81 | FAIL_EXIT1 ("ftok failed" ); |
82 | |
83 | msqid = msgget (key: key, MSGQ_MODE | IPC_CREAT); |
84 | if (msqid == -1) |
85 | { |
86 | if (errno == ENOSYS) |
87 | FAIL_UNSUPPORTED ("msgget not supported" ); |
88 | FAIL_EXIT1 ("msgget failed (errno=%d)" , errno); |
89 | } |
90 | |
91 | TEST_COMPARE (msgctl (msqid, first_msg_invalid_cmd (), NULL), -1); |
92 | TEST_COMPARE (errno, EINVAL); |
93 | |
94 | /* Get message queue kernel information and do some sanity checks. */ |
95 | struct msqid_ds msginfo; |
96 | if (msgctl (msqid: msqid, IPC_STAT, buf: &msginfo) == -1) |
97 | FAIL_EXIT1 ("msgctl with IPC_STAT failed (errno=%d)" , errno); |
98 | |
99 | if (msginfo.msg_perm.__key != key) |
100 | FAIL_EXIT1 ("msgid_ds::msg_perm::key (%d) != %d" , |
101 | (int) msginfo.msg_perm.__key, (int) key); |
102 | if (msginfo.msg_perm.mode != MSGQ_MODE) |
103 | FAIL_EXIT1 ("msgid_ds::msg_perm::mode (%o) != %o" , |
104 | msginfo.msg_perm.mode, MSGQ_MODE); |
105 | if (msginfo.msg_qnum != 0) |
106 | FAIL_EXIT1 ("msgid_ds::msg_qnum (%lu) != 0" , |
107 | (long unsigned) msginfo.msg_qnum); |
108 | |
109 | /* Check if last argument (IPC_NOWAIT) is correctly handled. */ |
110 | struct msgbuf_t msg2rcv = { 0 }; |
111 | if (msgrcv (msqid: msqid, msgp: &msg2rcv, msgsz: sizeof (msg2rcv.buf), MSGTYPE, |
112 | IPC_NOWAIT) == -1 |
113 | && errno != ENOMSG) |
114 | FAIL_EXIT1 ("msgrcv failed (errno=%d)" , errno); |
115 | |
116 | struct msgbuf_t msg2snd = { MSGTYPE, MSGDATA }; |
117 | if (msgsnd (msqid: msqid, msgp: &msg2snd, msgsz: sizeof (msg2snd.buf), msgflg: 0) == -1) |
118 | FAIL_EXIT1 ("msgsnd failed (errno=%d)" , errno); |
119 | |
120 | if (msgrcv (msqid: msqid, msgp: &msg2rcv, msgsz: sizeof (msg2rcv.buf), MSGTYPE, msgflg: 0) == -1) |
121 | FAIL_EXIT1 ("msgrcv failed (errno=%d)" , errno); |
122 | |
123 | int ret = 0; |
124 | if (strncmp (msg2snd.buf, msg2rcv.buf, TEXTSIZE) != 0) |
125 | ret = 1; |
126 | |
127 | if (msgctl (msqid: msqid, IPC_RMID, NULL) == -1) |
128 | FAIL_EXIT1 ("msgctl failed" ); |
129 | |
130 | return ret; |
131 | } |
132 | |
133 | #include <support/test-driver.c> |
134 | |