ustat02.c revision 1e6f5a673655551de5734ff31ef48cd63b604e6d 
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., 59
14 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
15 *
16 */
17/**************************************************************************
18 *
19 *    TEST IDENTIFIER	: ustat02
20 *
21 *
22 *    EXECUTED BY	: Anyone
23 *
24 *    TEST TITLE	: Test checking for basic error conditions
25 *    				 for ustat(2)
26 *
27 *    TEST CASE TOTAL	: 2
28 *       $
29 *    AUTHOR		: Aniruddha Marathe <aniruddha.marathe@wipro.com>
30 *
31 *    SIGNALS
32 * 	Uses SIGUSR1 to pause before test if option set.
33 * 	(See the parse_opts(3) man page).
34 *
35 *    DESCRIPTION
36 *	This test case checks whether ustat(2) system call  returns
37 *	appropriate error number for invalid
38 *	dev_t parameter. Next, it checks for bad address paramater.
39 *
40 * 	Setup:
41 *	  Setup signal handling.
42 *	  Pause for SIGUSR1 if option specified.
43 *	  For testing error on invalid parameter, set dev_num to -1
44 *
45 * 	Test:
46 *	  Loop if the proper options are given.
47 *	  Execute system call with invaid flag parameter
48 *	  and then for invalid user
49 *	  Check return code, if system call fails with errno == expected errno
50 *		Issue syscall passed with expected errno
51 *	  Otherwise,
52 *	  Issue syscall failed to produce expected errno
53 *
54 * 	Cleanup:
55 * 	  Do cleanup for the test.
56 * 	 $
57 * USAGE:  <for command-line>
58 *  ustat02 [-c n] [-e] [-i n] [-I x] [-p x] [-t] [-h] [-f] [-p]
59 *  where
60 *  	-c n: run n copies simultaneously
61 *	-e   : Turn on errno logging.
62 *	-i n : Execute test n times.
63 *	-I x : Execute test for x seconds.
64 *	-p   : Pause for SIGUSR1 before starting
65 *	-P x : Pause for x seconds between iterations.
66 *	-t   : Turn on syscall timing.
67 *
68 *RESTRICTIONS: None
69 *****************************************************************************/
70#include <errno.h>
71#include "test.h"
72#include "usctest.h"
73#include <sys/types.h>
74#include <unistd.h>		/* libc[45] */
75#include <ustat.h>		/* glibc2 */
76#include <sys/stat.h>
77
78static void setup();
79static void cleanup();
80
81char *TCID = "ustat02";		/* Test program identifier.    */
82
83static int exp_enos[] = { EINVAL, EFAULT, 0 };
84
85static struct test_case_t {
86	char *err_desc;		/*error description */
87	int exp_errno;		/* expected error number */
88	char *exp_errval;	/*Expected errorvalue string */
89} testcase[] = {
90	{
91	"Invalid parameter", EINVAL, "EINVAL"},
92#ifndef UCLINUX
93	    /* Skip since uClinux does not implement memory protection */
94	{
95	"Bad address", EFAULT, "EFAULT"}
96#endif
97};
98
99int TST_TOTAL = sizeof(testcase) / sizeof(*testcase);	/* Total number of test cases. */
100
101dev_t dev_num[2];
102struct ustat *ubuf;
103struct stat *buf;
104
105int main(int ac, char **av)
106{
107
108	int lc, i;		/* loop counter */
109	char *msg;		/* message returned from parse_opts */
110
111	/* parse standard options */
112	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL)
113		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
114
115	setup();
116
117	for (lc = 0; TEST_LOOPING(lc); lc++) {
118
119		Tst_count = 0;
120
121		for (i = 0; i < TST_TOTAL; i++) {
122			if (i == 0) {
123				TEST(ustat(dev_num[i], ubuf));
124			} else {
125				TEST(ustat(dev_num[i], (struct ustat *)-1));
126			}
127
128			if ((TEST_RETURN == -1) && (TEST_ERRNO == testcase[i].
129						    exp_errno)) {
130				tst_resm(TPASS, "ustat(2) expected failure;"
131					 " Got errno - %s : %s",
132					 testcase[i].exp_errval,
133					 testcase[i].err_desc);
134			} else {
135				tst_resm(TFAIL, "ustat(2) failed to produce"
136					 " expected error; %d, errno"
137					 ": %s and got %d",
138					 testcase[i].exp_errno,
139					 testcase[i].exp_errval, TEST_ERRNO);
140			}
141
142			TEST_ERROR_LOG(TEST_ERRNO);
143		}		/*End of TEST LOOPS */
144	}
145
146	/*Clean up and exit */
147	cleanup();
148
149	tst_exit();
150}				/*End of main */
151
152/* setup() - performs all ONE TIME setup for this test */
153void setup()
154{
155
156	tst_sig(NOFORK, DEF_HANDLER, cleanup);
157
158	/* set the expected errnos... */
159	TEST_EXP_ENOS(exp_enos);
160
161	TEST_PAUSE;
162
163	dev_num[0] = -1;
164
165	/* Allocating memory for ustat and stat structure variables */
166	if ((ubuf = (struct ustat *)malloc(sizeof(struct ustat))) == NULL) {
167		tst_brkm(TBROK, NULL, "Failed to allocate Memory");
168	}
169
170	if ((buf = (struct stat *)malloc(sizeof(struct stat))) == NULL) {
171		free(ubuf);
172		tst_brkm(TBROK, NULL, "Failed to allocate Memory");
173	}
174
175	/* Finding out a valid device number */
176	if (stat("/", buf) != 0) {
177		free(buf);
178		free(ubuf);
179		tst_brkm(TBROK, NULL, "stat(2) failed. Exiting without"
180			 "invoking ustat(2)");
181	}
182	dev_num[1] = buf->st_dev;
183}
184
185/*
186* cleanup() - Performs one time cleanup for this test at
187* completion or premature exit
188*/
189void cleanup()
190{
191	free(ubuf);
192	free(buf);
193	/*
194	 * print timing stats if that option was specified.
195	 * print errno log if that option was specified.
196	 */
197	TEST_CLEANUP;
198
199}