1/*
2 * Copyright (c) Wipro Technologies Ltd, 2003.  All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * You should have received a copy of the GNU General Public License along
13 * with this program; if not, write the Free Software Foundation, Inc.,
14 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
15 *
16 */
17/**************************************************************************
18 *
19 *    TEST IDENTIFIER	: clock_gettime03
20 *
21 *    EXECUTED BY	: anyone
22 *
23 *    TEST TITLE	: Test checking for basic error conditions for
24 *    			  clock_gettime(2)
25 *
26 *    TEST CASE TOTAL	: 7
27 *
28 *    AUTHOR		: Aniruddha Marathe <aniruddha.marathe@wipro.com>
29 *
30 *    SIGNALS
31 * 	Uses SIGUSR1 to pause before test if option set.
32 * 	(See the parse_opts(3) man page).
33 *
34 *    DESCRIPTION
35 *    	This test case check whether clock_gettime(2) returns appropriate error
36 *    	value for invalid parameter
37 *
38 * 	Setup:
39 *	 Setup signal handling.
40 *	 Pause for SIGUSR1 if option specified.
41 *
42 * 	Test:
43 *	 Loop if the proper options are given.
44 *	 If it is the first test case
45 *	 	make temp a bad pointer
46 *	 Otherwise pass defined struct timespec variable to temp
47 *	 Execute system call with invalid parameter
48 *	 Check return code, if system call fails with errno == expected errno
49 * 	 	Issue syscall passed with expected errno
50 *	 Otherwise, Issue syscall failed to produce expected errno
51 *
52 * 	Cleanup:
53 * 	 Print errno log and/or timing stats if options given
54 *
55 * USAGE:  <for command-line>
56 * clock_gettime03 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-p]
57 * where:
58 * 	-c n : run n copies simultaneously
59 *	-e   : Turn on errno logging.
60 *	-i n : Execute test n times.
61 *	-I x : Execute test for x seconds.
62 *	-p   : Pause for SIGUSR1 before starting
63 *	-P x : Pause for x seconds between iterations.
64 *	-t   : Turn on syscall timing.
65 *
66 * RESTRICTIONS:
67 * None
68 *****************************************************************************/
69
70#include <stdlib.h>
71#include <errno.h>
72#include <time.h>
73#include <signal.h>
74
75#include "test.h"
76#include "common_timers.h"
77
78void setup(void);
79
80int testcase[6] = {
81	EFAULT,			/* Bad timespec   */
82	EFAULT,			/* Bad timespec   */
83	EINVAL,			/* MAX_CLOCKS     */
84	EINVAL			/* MAX_CLOCKS + 1 */
85};
86
87char *TCID = "clock_gettime03";	/* Test program identifier.    */
88int TST_TOTAL = ARRAY_SIZE(testcase);
89
90int main(int ac, char **av)
91{
92	int i, lc;
93	struct timespec spec, *temp;
94
95	clockid_t clocks[] = {
96		CLOCK_REALTIME,
97		CLOCK_MONOTONIC,
98		MAX_CLOCKS,
99		MAX_CLOCKS + 1,
100		CLOCK_PROCESS_CPUTIME_ID,
101		CLOCK_THREAD_CPUTIME_ID
102	};
103
104	tst_parse_opts(ac, av, NULL, NULL);
105
106	/*
107	 * PROCESS_CPUTIME_ID & THREAD_CPUTIME_ID are not supported on
108	 * kernel versions lower than 2.6.12
109	 */
110	if ((tst_kvercmp(2, 6, 12)) < 0) {
111		testcase[4] = EINVAL;
112		testcase[5] = EINVAL;
113	} else {
114		testcase[4] = EFAULT;
115		testcase[5] = EFAULT;
116	}
117
118	setup();
119
120	for (lc = 0; TEST_LOOPING(lc); lc++) {
121
122		tst_count = 0;
123
124		for (i = 0; i < TST_TOTAL; i++) {
125			temp = &spec;
126
127			if (i == 0) {
128				temp = (struct timespec *)-1;
129			} else if (i == 1) {
130				temp = NULL;
131			} else if ((i >= 4) && (tst_kvercmp(2, 6, 12) >= 0)) {
132				temp = NULL;
133			}
134
135			TEST(ltp_syscall(__NR_clock_gettime, clocks[i], temp));
136
137			/* check return code */
138			if (TEST_RETURN == -1 && TEST_ERRNO == testcase[i]) {
139				tst_resm(TPASS | TTERRNO,
140					 "got expected failure");
141			} else {
142				tst_resm(TFAIL | TTERRNO,
143					 "failed to produce expected error "
144					 "[expected errno = %d (%s), "
145					 "TEST_RETURN = %ld]",
146					 testcase[i], strerror(testcase[i]),
147					 TEST_RETURN);
148			}	/* end of else */
149
150		}		/*End of TEST CASE LOOPING */
151
152	}			/*End for TEST_LOOPING */
153
154	cleanup();
155	tst_exit();
156}
157
158/* setup() - performs all ONE TIME setup for this test */
159void setup(void)
160{
161
162	tst_sig(NOFORK, DEF_HANDLER, cleanup);
163
164	TEST_PAUSE;
165}
166
167/*
168 * cleanup() - Performs one time cleanup for this test at
169 * completion or premature exit
170 */
171void cleanup(void)
172{
173}
174