1 /*
2 * Copyright (c) International Business Machines Corp., 2001
3 * 07/2001 Ported by Wayne Boyer
4 * Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
14 * the GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20 /*
21 * Testcase to test the different errnos set by setrlimit(2) system call.
22 */
23 #include <pwd.h>
24 #include <errno.h>
25 #include "tst_test.h"
26
27 static char nobody_uid[] = "nobody";
28 static struct rlimit rlim;
29
30 static struct tcase {
31 int resource;
32 struct rlimit *rlim;
33 int exp_errno;
34 } tcases[] = {
35 {-1, &rlim, EINVAL},
36 {RLIMIT_NOFILE, &rlim, EPERM}
37 };
38
verify_setrlimit(unsigned int n)39 static void verify_setrlimit(unsigned int n)
40 {
41 struct tcase *tc = &tcases[n];
42
43 TEST(setrlimit(tc->resource, tc->rlim));
44
45 if (TST_RET != -1) {
46 tst_res(TFAIL, "call succeeded unexpectedly");
47 return;
48 }
49
50 if (TST_ERR != tc->exp_errno) {
51 tst_res(TFAIL | TTERRNO,
52 "setrlimit() should fail with %s got",
53 tst_strerrno(tc->exp_errno));
54 return;
55 }
56
57 tst_res(TPASS | TTERRNO, "setrlimit() failed as expected");
58 }
59
setup(void)60 static void setup(void)
61 {
62 struct passwd *ltpuser = SAFE_GETPWNAM(nobody_uid);
63
64 SAFE_SETUID(ltpuser->pw_uid);
65
66 SAFE_GETRLIMIT(RLIMIT_NOFILE, &rlim);
67 rlim.rlim_max++;
68 }
69
70 static struct tst_test test = {
71 .setup = setup,
72 .test = verify_setrlimit,
73 .tcnt = ARRAY_SIZE(tcases),
74 .needs_root = 1,
75 };
76