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 <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
65 union semun arg;
66
67 setup();
68
69 arg.buf = &buf_ds;
70 if ((status = semctl(semid, 0, IPC_STAT, arg)) == -1) {
71 tst_resm(TFAIL, "semctl() failed errno = %d", errno);
72 semctl(semid, 1, IPC_RMID, arg);
73
74 }
75
76 /*
77 * Check contents of semid_ds structure.
78 */
79
80 if (arg.buf->sem_nsems != nsems) {
81 tst_resm(TFAIL, "error: unexpected number of sems %lu",
82 arg.buf->sem_nsems);
83
84 }
85 if (arg.buf->sem_perm.uid != getuid()) {
86 tst_resm(TFAIL, "error: unexpected uid %d",
87 arg.buf->sem_perm.uid);
88
89 }
90 if (arg.buf->sem_perm.gid != getgid()) {
91 tst_resm(TFAIL, "error: unexpected gid %d",
92 arg.buf->sem_perm.gid);
93
94 }
95 if (arg.buf->sem_perm.cuid != getuid()) {
96 tst_resm(TFAIL, "error: unexpected cuid %d",
97 arg.buf->sem_perm.cuid);
98
99 }
100 if (arg.buf->sem_perm.cgid != getgid()) {
101 tst_resm(TFAIL, "error: unexpected cgid %d",
102 arg.buf->sem_perm.cgid);
103
104 }
105 if ((status = semctl(semid, 0, GETVAL, arg)) == -1) {
106 tst_resm(TFAIL, "semctl(GETVAL) failed errno = %d", errno);
107
108 }
109 arg.val = 1;
110 if ((status = semctl(semid, 0, SETVAL, arg)) == -1) {
111 tst_resm(TFAIL, "SEMCTL(SETVAL) failed errno = %d", errno);
112
113 }
114 if ((status = semctl(semid, 0, GETVAL, arg)) == -1) {
115 tst_resm(TFAIL, "semctl(GETVAL) failed errno = %d", errno);
116
117 }
118 if (status != arg.val) {
119 tst_resm(TFAIL, "error: unexpected value %d", status);
120
121 }
122 if ((status = semctl(semid, 0, GETPID, arg)) == -1) {
123 tst_resm(TFAIL, "semctl(GETPID) failed errno = %d", errno);
124
125 }
126 status = getpid();
127 if (status == 0) {
128 tst_resm(TFAIL, "error: unexpected pid %d", status);
129
130 }
131 if ((status = semctl(semid, 0, GETNCNT, arg)) == -1) {
132 tst_resm(TFAIL, "semctl(GETNCNT) failed errno = %d", errno);
133
134 }
135 if (status != 0) {
136 tst_resm(TFAIL, "error: unexpected semncnt %d", status);
137
138 }
139 if ((status = semctl(semid, 0, GETZCNT, arg)) == -1) {
140 tst_resm(TFAIL, "semctl(GETZCNT) failed errno = %d", errno);
141
142 }
143 if (status != 0) {
144 tst_resm(TFAIL, "error: unexpected semzcnt %d", status);
145
146 }
147
148 tst_resm(TPASS, "semctl07 ran successfully!");
149
150 cleanup();
151 tst_exit();
152 }
153
setup(void)154 void setup(void)
155 {
156 tst_sig(NOFORK, DEF_HANDLER, cleanup);
157
158 TEST_PAUSE;
159
160 tst_tmpdir();
161
162 /* get an IPC resource key */
163 key = getipckey();
164 nsems = 1;
165
166 if ((semid = semget(key, nsems, SEM_RA | IPC_CREAT)) == -1) {
167 tst_brkm(TFAIL, NULL, "semget() failed errno = %d", errno);
168 }
169 }
170
cleanup(void)171 void cleanup(void)
172 {
173 rm_sema(semid);
174 tst_rmdir();
175 }
176