semget03.c revision bdbaec51a423e715c2b03ed9e497e9a1fba6103e 
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20/*
21 * NAME
22 *	semget03.c
23 *
24 * DESCRIPTION
25 *	semget03 - test for ENOENT error
26 *
27 * ALGORITHM
28 *	loop if that option was specified
29 *	call semget() with a valid key but with no associated semaphore set
30 *	   and IPC_CREAT is not asserted
31 *	check the errno value
32 *	  issue a PASS message if we get ENOENT
33 *	otherwise, the tests fails
34 *	  issue a FAIL message
35 *	call cleanup
36 *
37 * USAGE:  <for command-line>
38 *  semget03 [-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 "../lib/ipcsem.h"
54
55char *TCID = "semget03";
56int TST_TOTAL = 1;
57extern int Tst_count;
58
59int exp_enos[] = {ENOENT, 0};	/* 0 terminated list of expected errnos */
60
61int sem_id_1 = -1;
62
63int main(int ac, char **av)
64{
65	int lc;				/* loop counter */
66	char *msg;			/* message returned from parse_opts */
67
68	/* parse standard options */
69	if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){
70		tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
71	}
72
73	setup();			/* global setup */
74
75	/* The following loop checks looping state if -i option given */
76
77	for (lc = 0; TEST_LOOPING(lc); lc++) {
78		/* reset Tst_count in case we are looping */
79		Tst_count = 0;
80
81		/* use the TEST macro to make the call */
82
83		TEST(semget(semkey, PSEMS, SEM_RA));
84
85		if (TEST_RETURN != -1) {
86			sem_id_1 = TEST_RETURN;
87			tst_resm(TFAIL, "call succeeded when error expected");
88			continue;
89		}
90
91		TEST_ERROR_LOG(TEST_ERRNO);
92
93		switch(TEST_ERRNO) {
94		case ENOENT:
95			tst_resm(TPASS, "expected failure - errno "
96				 "= %d : %s", TEST_ERRNO, strerror(TEST_ERRNO));
97			break;
98		default:
99			tst_resm(TFAIL, "unexpected error - %d : %s",
100				 TEST_ERRNO, strerror(TEST_ERRNO));
101			break;
102		}
103	}
104
105	cleanup();
106
107	/*NOTREACHED*/
108	return 0;
109}
110
111/*
112 * setup() - performs all the ONE TIME setup for this test.
113 */
114void
115setup(void)
116{
117	/* capture signals */
118	tst_sig(NOFORK, DEF_HANDLER, cleanup);
119
120	/* Set up the expected error numbers for -e option */
121	TEST_EXP_ENOS(exp_enos);
122
123	/* Pause if that option was specified */
124	TEST_PAUSE;
125
126	/*
127	 * Create a temporary directory and cd into it.
128	 * This helps to ensure that a unique msgkey is created.
129	 * See ../lib/libipc.c for more information.
130	 */
131	tst_tmpdir();
132
133	/* get an IPC resource key */
134	semkey = getipckey();
135}
136
137/*
138 * cleanup() - performs all the ONE TIME cleanup for this test at completion
139 * 	       or premature exit.
140 */
141void
142cleanup(void)
143{
144	/* if it exists, remove the semaphore resource */
145	rm_sema(sem_id_1);
146
147	/* Remove the temporary directory */
148	tst_rmdir();
149
150	/*
151	 * print timing stats if that option was specified.
152	 * print errno log if that option was specified.
153	 */
154	TEST_CLEANUP;
155
156	/* exit with return code appropriate for results */
157	tst_exit();
158}
159
160