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 * setrlimit02.c
23 *
24 * DESCRIPTION
25 * Testcase to test the different errnos set by setrlimit(2) system call.
26 *
27 * USAGE: <for command-line>
28 * setrlimit02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
29 * where, -c n : Run n copies concurrently.
30 * -e : Turn on errno logging.
31 * -i n : Execute test n times.
32 * -I x : Execute test for x seconds.
33 * -P x : Pause for x seconds between iterations.
34 * -t : Turn on syscall timing.
35 *
36 * HISTORY
37 * 07/2001 Ported by Wayne Boyer
38 *
39 * RESTRICTIONS
40 * NONE
41 */
42 #include <sys/time.h>
43 #include <sys/resource.h>
44 #include <unistd.h>
45 #include <errno.h>
46 #include <pwd.h>
47 #include "test.h"
48
49 char *TCID = "setrlimit02";
50
51 char nobody_uid[] = "nobody";
52 struct passwd *ltpuser;
53
54 struct rlimit rlim;
55
56 void setup();
57 void cleanup();
58
59 struct test_case_t {
60 int resource;
61 struct rlimit *rlim;
62 int error;
63 } TC[] = {
64 #if !defined(UCLINUX)
65 /* rlim points outside the process address space - EFAULT */
66 {
67 RLIMIT_NOFILE, (void *)-1, EFAULT},
68 #endif
69 /* the resource is invalid - EINVAL */
70 {
71 -1, &rlim, EINVAL},
72 /* a non-root user attemps to increase the rlim_max value - EPERM */
73 {
74 RLIMIT_NOFILE, &rlim, EPERM}
75 };
76
77 int TST_TOTAL = ARRAY_SIZE(TC);
78
main(int ac,char ** av)79 int main(int ac, char **av)
80 {
81 int lc;
82 int i;
83
84 tst_parse_opts(ac, av, NULL, NULL);
85
86 setup();
87
88 for (lc = 0; TEST_LOOPING(lc); lc++) {
89
90 tst_count = 0;
91
92 /* loop through the test cases */
93 for (i = 0; i < TST_TOTAL; i++) {
94
95 TEST(setrlimit(TC[i].resource, TC[i].rlim));
96
97 if (TEST_RETURN != -1) {
98 tst_resm(TFAIL, "call succeeded unexpectedly");
99 continue;
100 }
101
102 if (TEST_ERRNO == TC[i].error) {
103 tst_resm(TPASS, "expected failure - "
104 "errno = %d : %s", TEST_ERRNO,
105 strerror(TEST_ERRNO));
106 } else {
107 tst_resm(TFAIL, "unexpected error - %d : %s - "
108 "expected %d", TEST_ERRNO,
109 strerror(TEST_ERRNO), TC[i].error);
110 }
111 }
112 }
113 cleanup();
114
115 tst_exit();
116
117 }
118
119 /*
120 * setup() - performs all ONE TIME setup for this test.
121 */
setup(void)122 void setup(void)
123 {
124 tst_require_root();
125
126 tst_sig(NOFORK, DEF_HANDLER, cleanup);
127
128 TEST_PAUSE;
129
130 /* Switch to nobody user for correct error code collection */
131 ltpuser = getpwnam(nobody_uid);
132 if (setuid(ltpuser->pw_uid) == -1) {
133 tst_resm(TINFO, "setuid failed to "
134 "to set the effective uid to %d", ltpuser->pw_uid);
135 perror("setuid");
136 }
137
138 /* set an illegal value for a non-root user - test #3 - EPERM */
139 getrlimit(RLIMIT_NOFILE, &rlim);
140 rlim.rlim_max++;
141 }
142
143 /*
144 * cleanup() - performs all ONE TIME cleanup for this test at
145 * completion or premature exit.
146 */
cleanup(void)147 void cleanup(void)
148 {
149
150 }
151