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 *	semop03.c
23 *
24 * DESCRIPTION
25 *	semop03 - test for EFBIG error
26 *
27 * ALGORITHM
28 *	create a semaphore set with read and alter permissions
29 *	loop if that option was specified
30 *	call semop() using two different invalid cases
31 *	check the errno value
32 *	  issue a PASS message if we get EFBIG
33 *	otherwise, the tests fails
34 *	  issue a FAIL message
35 *	call cleanup
36 *
37 * USAGE:  <for command-line>
38 *  semop03 [-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
55char *TCID = "semop03";
56int TST_TOTAL = 2;
57
58int sem_id_1 = -1;
59
60struct sembuf s_buf;
61
62int TC[] = { -1, PSEMS + 1 };	/* negative and too many "primitive" semas */
63
64int main(int ac, char **av)
65{
66	int lc;
67	int i;
68
69	tst_parse_opts(ac, av, NULL, NULL);
70
71	setup();		/* global setup */
72
73	/* initialize two fields in the sembuf structure here */
74	s_buf.sem_op = 1;	/* add this value to struct sem.semval */
75	s_buf.sem_flg = SEM_UNDO;	/* undo when process exits */
76
77	/* The following loop checks looping state if -i option given */
78
79	for (lc = 0; TEST_LOOPING(lc); lc++) {
80		/* reset tst_count in case we are looping */
81		tst_count = 0;
82
83		for (i = 0; i < TST_TOTAL; i++) {
84
85			/* initialize the last field in the sembuf */
86			/* structure to the test dependent value   */
87			s_buf.sem_num = TC[i];
88
89			/*
90			 * use the TEST macro to make the call
91			 */
92
93			TEST(semop(sem_id_1, &s_buf, 1));
94
95			if (TEST_RETURN != -1) {
96				tst_resm(TFAIL, "call succeeded unexpectedly");
97				continue;
98			}
99
100			switch (TEST_ERRNO) {
101			case EFBIG:
102				tst_resm(TPASS, "expected failure - errno = "
103					 "%d : %s", TEST_ERRNO,
104					 strerror(TEST_ERRNO));
105				break;
106			default:
107				tst_resm(TFAIL, "unexpected error - "
108					 "%d : %s", TEST_ERRNO,
109					 strerror(TEST_ERRNO));
110				break;
111			}
112		}
113	}
114
115	cleanup();
116
117	tst_exit();
118}
119
120/*
121 * setup() - performs all the ONE TIME setup for this test.
122 */
123void setup(void)
124{
125
126	tst_sig(NOFORK, DEF_HANDLER, cleanup);
127
128	TEST_PAUSE;
129
130	/*
131	 * Create a temporary directory and cd into it.
132	 * This helps to ensure that a unique msgkey is created.
133	 * See ../lib/libipc.c for more information.
134	 */
135	tst_tmpdir();
136
137	/* get an IPC resource key */
138	semkey = getipckey();
139
140	/* create a semaphore with read and alter permissions */
141	if ((sem_id_1 =
142	     semget(semkey, PSEMS, IPC_CREAT | IPC_EXCL | SEM_RA)) == -1) {
143		tst_brkm(TBROK, cleanup, "couldn't create semaphore in setup");
144	}
145}
146
147/*
148 * cleanup() - performs all the ONE TIME cleanup for this test at completion
149 * 	       or premature exit.
150 */
151void cleanup(void)
152{
153	/* if it exists, remove the semaphore resource */
154	rm_sema(sem_id_1);
155
156	tst_rmdir();
157
158}
159