1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 * Ported to LTP 07/2001 John George
5 * Testcase to check that settimeofday() sets errnos correctly.
6 */
7
8 #include <stdio.h>
9 #include <sys/time.h>
10 #include <errno.h>
11 #include "tst_capability.h"
12 #include "tst_test.h"
13 #include "lapi/syscalls.h"
14
15 static struct tcase {
16 struct timeval tv;
17 int exp_errno;
18 char *message;
19 } tcases[] = {
20 {{-1, 0}, EINVAL, "tv.tv_sec is negative"},
21 {{0, -1}, EINVAL, "tv.tv_usec is outside the range [0..999,999]"},
22 {{100, 100}, EPERM, "calling process without CAP_SYS_TIME capability"},
23 };
24
verify_settimeofday(unsigned int n)25 static void verify_settimeofday(unsigned int n)
26 {
27 struct tcase *tc = &tcases[n];
28
29 tst_res(TINFO, "%s", tc->message);
30 TEST(settimeofday(&tc->tv, NULL));
31 if (TST_RET != -1) {
32 tst_res(TFAIL, "settimeofday() succeeded unexpectedly");
33 return;
34 }
35
36 if (TST_ERR != tc->exp_errno)
37 tst_res(TFAIL | TTERRNO, "Expected %s got ", tst_strerrno(tc->exp_errno));
38 else
39 tst_res(TPASS | TTERRNO, "Received expected errno");
40 }
41
42 static struct tst_test test = {
43 .test = verify_settimeofday,
44 .tcnt = ARRAY_SIZE(tcases),
45 .caps = (struct tst_cap []) {
46 TST_CAP(TST_CAP_DROP, CAP_SYS_TIME),
47 {}
48 },
49 };
50