1 /*
2 *
3 * Copyright (c) International Business Machines Corp., 2001
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 /*
21 * NAME
22 * semctl03.c
23 *
24 * DESCRIPTION
25 * semctl03 - test for EINVAL and EFAULT errors
26 *
27 * ALGORITHM
28 * create a semaphore set with read and alter permissions
29 * loop if that option was specified
30 * call semctl() using four different invalid cases
31 * check the errno value
32 * issue a PASS message if we get EINVAL or EFAULT
33 * otherwise, the tests fails
34 * issue a FAIL message
35 * call cleanup
36 *
37 * USAGE: <for command-line>
38 * semctl03 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
39 * where, -c n : Run n copies concurrently.
40 * -e : Turn on errno logging.
41 * -i n : Execute test n times.
42 * -I x : Execute test for x seconds.
43 * -P x : Pause for x seconds between iterations.
44 * -t : Turn on syscall timing.
45 *
46 * HISTORY
47 * 03/2001 - Written by Wayne Boyer
48 *
49 * RESTRICTIONS
50 * none
51 */
52
53 #include "ipcsem.h"
54
55 #ifdef _XLC_COMPILER
56 #define SEMUN_CAST
57 #else
58 #define SEMUN_CAST (union semun)
59 #endif
60
61 char *TCID = "semctl03";
62 int TST_TOTAL = 4;
63
64 #ifdef _XLC_COMPILER
65 #define SEMUN_CAST
66 #else
67 #define SEMUN_CAST (union semun)
68 #endif
69
70 int sem_id_1 = -1;
71 int bad_id = -1;
72
73 struct semid_ds sem_ds;
74
75 struct test_case_t {
76 int *sem_id;
77 int ipc_cmd;
78 union semun arg;
79 int error;
80 } TC[] = {
81 /* EINVAL - the IPC command is not valid */
82 {
83 &sem_id_1, -1, SEMUN_CAST & sem_ds, EINVAL},
84 /* EINVAL - the semaphore ID is not valid */
85 {
86 &bad_id, IPC_STAT, SEMUN_CAST & sem_ds, EINVAL},
87 /* EFAULT - the union arg is invalid when expecting "ushort *array" */
88 {
89 &sem_id_1, GETALL, SEMUN_CAST - 1, EFAULT},
90 /* EFAULT - the union arg is invalid when expecting */
91 /* "struct semid_ds *buf */
92 {
93 &sem_id_1, IPC_SET, SEMUN_CAST - 1, EFAULT}
94 };
95
main(int ac,char ** av)96 int main(int ac, char **av)
97 {
98 int lc;
99 int i;
100
101 tst_parse_opts(ac, av, NULL, NULL);
102
103 setup(); /* global setup */
104
105 /* The following loop checks looping state if -i option given */
106
107 for (lc = 0; TEST_LOOPING(lc); lc++) {
108 /* reset tst_count in case we are looping */
109 tst_count = 0;
110
111 for (i = 0; i < TST_TOTAL; i++) {
112
113 TEST(semctl(*(TC[i].sem_id), 0, TC[i].ipc_cmd,
114 TC[i].arg));
115
116 if (TEST_RETURN != -1) {
117 tst_resm(TFAIL, "call succeeded unexpectedly");
118 continue;
119 }
120
121 if (TEST_ERRNO == TC[i].error) {
122 tst_resm(TPASS, "expected failure - errno = %d"
123 " : %s", TEST_ERRNO,
124 strerror(TEST_ERRNO));
125 } else {
126 tst_resm(TFAIL, "unexpected error - %d : %s",
127 TEST_ERRNO, strerror(TEST_ERRNO));
128 }
129 }
130 }
131
132 cleanup();
133
134 tst_exit();
135 }
136
137 /*
138 * setup() - performs all the ONE TIME setup for this test.
139 */
setup(void)140 void setup(void)
141 {
142
143 tst_sig(NOFORK, DEF_HANDLER, cleanup);
144
145 TEST_PAUSE;
146
147 /*
148 * Create a temporary directory and cd into it.
149 * This helps to ensure that a unique msgkey is created.
150 * See ../lib/libipc.c for more information.
151 */
152 tst_tmpdir();
153
154 /* get an IPC resource key */
155 semkey = getipckey();
156
157 /* create a semaphore set with read and alter permissions */
158 if ((sem_id_1 =
159 semget(semkey, PSEMS, IPC_CREAT | IPC_EXCL | SEM_RA)) == -1) {
160 tst_brkm(TBROK, cleanup, "couldn't create semaphore in setup");
161 }
162 }
163
164 /*
165 * cleanup() - performs all the ONE TIME cleanup for this test at completion
166 * or premature exit.
167 */
cleanup(void)168 void cleanup(void)
169 {
170 /* if it exists, remove the semaphore resouce */
171 rm_sema(sem_id_1);
172
173 tst_rmdir();
174
175 }
176