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
61char *TCID = "semctl03";
62int TST_TOTAL = 4;
63
64#ifdef _XLC_COMPILER
65#define SEMUN_CAST
66#else
67#define SEMUN_CAST (union semun)
68#endif
69
70int sem_id_1 = -1;
71int bad_id = -1;
72
73struct semid_ds sem_ds;
74
75struct 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
96int 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 */
140void 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 */
168void cleanup(void)
169{
170	/* if it exists, remove the semaphore resouce */
171	rm_sema(sem_id_1);
172
173	tst_rmdir();
174
175}
176