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 * shmdt02.c
23 *
24 * DESCRIPTION
25 * shmdt02 - check for EINVAL error
26 *
27 * ALGORITHM
28 * loop if that option was specified
29 * call shmdt() using an invalid shared memory address
30 * check the errno value
31 * issue a PASS message if we get EINVAL
32 * otherwise, the tests fails
33 * issue a FAIL message
34 * call cleanup
35 *
36 * USAGE: <for command-line>
37 * shmdt02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
38 * where, -c n : Run n copies concurrently.
39 * -e : Turn on errno logging.
40 * -i n : Execute test n times.
41 * -I x : Execute test for x seconds.
42 * -P x : Pause for x seconds between iterations.
43 * -t : Turn on syscall timing.
44 *
45 * HISTORY
46 * 03/2001 - Written by Wayne Boyer
47 *
48 * RESTRICTIONS
49 * none
50 */
51
52 #include "ipcshm.h"
53
54 char *TCID = "shmdt02";
55 int TST_TOTAL = 1;
56
main(int ac,char ** av)57 int main(int ac, char **av)
58 {
59 int lc;
60 int unshared; /* a local variable to use to produce *//* the error in the shmdt() call */
61
62 tst_parse_opts(ac, av, NULL, NULL);
63
64 setup(); /* global setup */
65
66 /* The following loop checks looping state if -i option given */
67
68 for (lc = 0; TEST_LOOPING(lc); lc++) {
69 /* reset tst_count in case we are looping */
70 tst_count = 0;
71
72 /*
73 * make the call using the TEST() macro - attempt to
74 * remove an invalid shared memory address
75 */
76
77 TEST(shmdt(&unshared));
78
79 if (TEST_RETURN != -1) {
80 tst_brkm(TFAIL, cleanup, "call succeeded unexpectedly");
81 }
82
83 switch (TEST_ERRNO) {
84 case EINVAL:
85 tst_resm(TPASS, "expected failure - errno = %d : %s",
86 TEST_ERRNO, strerror(TEST_ERRNO));
87 break;
88 default:
89 tst_resm(TFAIL, "call failed with an unexpected error "
90 "- %d : %s", TEST_ERRNO, strerror(TEST_ERRNO));
91
92 }
93 }
94
95 cleanup();
96
97 tst_exit();
98 }
99
100 /*
101 * setup() - performs all the ONE TIME setup for this test.
102 */
setup(void)103 void setup(void)
104 {
105
106 tst_sig(NOFORK, DEF_HANDLER, cleanup);
107
108 TEST_PAUSE;
109 }
110
111 /*
112 * cleanup() - performs all the ONE TIME cleanup for this test at completion
113 * or premature exit.
114 */
cleanup(void)115 void cleanup(void)
116 {
117
118 }
119