1 /*
2 *
3 * Copyright (c) International Business Machines Corp., 2002
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program 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
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 /* 06/30/2001 Port to Linux nsharoff@us.ibm.com */
21 /* 10/30/2002 Port to LTP dbarrera@us.ibm.com */
22
23 /*
24 * NAME
25 * semctl07
26 *
27 * CALLS
28 * semctl(2) semget(2)
29 *
30 * ALGORITHM
31 * Get and manipulate a set of semaphores.
32 *
33 * RESTRICTIONS
34 *
35 * HISTORY
36 * 10/03/2008 Renaud Lottiaux (Renaud.Lottiaux@kerlabs.com)
37 * - Fix concurrency issue. A statically defined key was used. Leading
38 * to conflict with other instances of the same test.
39 */
40
41 #include <sys/types.h>
42 #include <sys/ipc.h>
43 #include <sys/sem.h>
44 #include <signal.h>
45 #include <errno.h>
46 #include <stdio.h>
47 #include <sys/wait.h>
48 #include "ipcsem.h"
49 #include "test.h"
50
51 void setup(void);
52 void cleanup(void);
53
54 char *TCID = "semctl07";
55 int TST_TOTAL = 1;
56
57 key_t key;
58 int semid = -1, nsems;
59
main(int argc,char * argv[])60 int main(int argc, char *argv[])
61 {
62 int status;
63 struct semid_ds buf_ds;
64 union semun arg;
65
66 tst_parse_opts(argc, argv, NULL, NULL);
67
68 setup();
69
70 arg.buf = &buf_ds;
71 if ((status = semctl(semid, 0, IPC_STAT, arg)) == -1) {
72 tst_resm(TFAIL, "semctl() failed errno = %d", errno);
73 semctl(semid, 1, IPC_RMID, arg);
74
75 }
76
77 /*
78 * Check contents of semid_ds structure.
79 */
80
81 if (arg.buf->sem_nsems != nsems) {
82 tst_resm(TFAIL, "error: unexpected number of sems %lu",
83 arg.buf->sem_nsems);
84
85 }
86 if (arg.buf->sem_perm.uid != getuid()) {
87 tst_resm(TFAIL, "error: unexpected uid %d",
88 arg.buf->sem_perm.uid);
89
90 }
91 if (arg.buf->sem_perm.gid != getgid()) {
92 tst_resm(TFAIL, "error: unexpected gid %d",
93 arg.buf->sem_perm.gid);
94
95 }
96 if (arg.buf->sem_perm.cuid != getuid()) {
97 tst_resm(TFAIL, "error: unexpected cuid %d",
98 arg.buf->sem_perm.cuid);
99
100 }
101 if (arg.buf->sem_perm.cgid != getgid()) {
102 tst_resm(TFAIL, "error: unexpected cgid %d",
103 arg.buf->sem_perm.cgid);
104
105 }
106 if ((status = semctl(semid, 0, GETVAL, arg)) == -1) {
107 tst_resm(TFAIL, "semctl(GETVAL) failed errno = %d", errno);
108
109 }
110 arg.val = 1;
111 if ((status = semctl(semid, 0, SETVAL, arg)) == -1) {
112 tst_resm(TFAIL, "SEMCTL(SETVAL) failed errno = %d", errno);
113
114 }
115 if ((status = semctl(semid, 0, GETVAL, arg)) == -1) {
116 tst_resm(TFAIL, "semctl(GETVAL) failed errno = %d", errno);
117
118 }
119 if (status != arg.val) {
120 tst_resm(TFAIL, "error: unexpected value %d", status);
121
122 }
123 if ((status = semctl(semid, 0, GETPID, arg)) == -1) {
124 tst_resm(TFAIL, "semctl(GETPID) failed errno = %d", errno);
125
126 }
127 status = getpid();
128 if (status == 0) {
129 tst_resm(TFAIL, "error: unexpected pid %d", status);
130
131 }
132 if ((status = semctl(semid, 0, GETNCNT, arg)) == -1) {
133 tst_resm(TFAIL, "semctl(GETNCNT) failed errno = %d", errno);
134
135 }
136 if (status != 0) {
137 tst_resm(TFAIL, "error: unexpected semncnt %d", status);
138
139 }
140 if ((status = semctl(semid, 0, GETZCNT, arg)) == -1) {
141 tst_resm(TFAIL, "semctl(GETZCNT) failed errno = %d", errno);
142
143 }
144 if (status != 0) {
145 tst_resm(TFAIL, "error: unexpected semzcnt %d", status);
146
147 }
148
149 tst_resm(TPASS, "semctl07 ran successfully!");
150
151 cleanup();
152 tst_exit();
153 }
154
setup(void)155 void setup(void)
156 {
157 tst_sig(NOFORK, DEF_HANDLER, cleanup);
158
159 TEST_PAUSE;
160
161 tst_tmpdir();
162
163 /* get an IPC resource key */
164 key = getipckey();
165 nsems = 1;
166
167 if ((semid = semget(key, nsems, SEM_RA | IPC_CREAT)) == -1) {
168 tst_brkm(TFAIL, NULL, "semget() failed errno = %d", errno);
169 }
170 }
171
cleanup(void)172 void cleanup(void)
173 {
174 rm_sema(semid);
175 tst_rmdir();
176 }
177