ustat02.c revision 194168d13ed5c4a51affee83d14afe8e9b75011f 
1/*
2 * Copyright (c) Wipro Technologies Ltd, 2002.  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 whether ustat(2) system call returns appropriate error number for
20 * invalid dev_t parameter and for bad address paramater.
21 */
22
23#include <unistd.h>
24#include <ustat.h>
25#include <errno.h>
26#include <sys/stat.h>
27#include <sys/types.h>
28#include "test.h"
29#include "usctest.h"
30#include "safe_macros.h"
31
32static void setup(void);
33static void cleanup(void);
34
35char *TCID = "ustat02";
36
37static int exp_enos[] = { EINVAL, EFAULT, 0 };
38
39static dev_t invalid_dev = -1;
40static dev_t root_dev;
41struct ustat ubuf;
42
43static struct test_case_t {
44	char *err_desc;
45	int exp_errno;
46	char *exp_errval;
47	dev_t *dev;
48	struct ustat *buf;
49} tc[] = {
50	{"Invalid parameter", EINVAL, "EINVAL", &invalid_dev, &ubuf},
51#ifndef UCLINUX
52	{"Bad address", EFAULT, "EFAULT", &root_dev, (void*)-1}
53#endif
54};
55
56int TST_TOTAL = ARRAY_SIZE(tc);
57
58int main(int ac, char **av)
59{
60
61	int lc, i;
62	const char *msg;
63
64	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL)
65		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
66
67	setup();
68
69	for (lc = 0; TEST_LOOPING(lc); lc++) {
70		tst_count = 0;
71
72		for (i = 0; i < TST_TOTAL; i++) {
73			TEST(ustat(*tc[i].dev, tc[i].buf));
74
75			if (TEST_RETURN == -1 && TEST_ERRNO == ENOSYS)
76				tst_brkm(TCONF, cleanup, "ustat not supported");
77
78			if ((TEST_RETURN == -1)
79			    && (TEST_ERRNO == tc[i].exp_errno)) {
80				tst_resm(TPASS,
81					 "ustat(2) expected failure;"
82					 " Got errno - %s : %s",
83					 tc[i].exp_errval, tc[i].err_desc);
84			} else {
85				tst_resm(TFAIL | TTERRNO,
86				         "ustat(2) failed to produce"
87					 " expected error; %d, errno"
88					 ": %s",
89					 tc[i].exp_errno, tc[i].exp_errval);
90			}
91
92			TEST_ERROR_LOG(TEST_ERRNO);
93		}
94	}
95
96	cleanup();
97	tst_exit();
98}
99
100static void setup(void)
101{
102	struct stat buf;
103
104	tst_sig(NOFORK, DEF_HANDLER, cleanup);
105
106	TEST_EXP_ENOS(exp_enos);
107
108	TEST_PAUSE;
109
110	/* Find a valid device number */
111	SAFE_STAT(cleanup, "/", &buf);
112
113	root_dev = buf.st_dev;
114}
115
116static void cleanup(void)
117{
118	TEST_CLEANUP;
119}
120