1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) International Business Machines  Corp., 2001
4 *
5 * Test Description:
6 *  Verify that the system call stime() successfully sets the system's idea
7 *  of date and time if invoked by "root" user.
8 *
9 * Expected Result:
10 *  stime() should succeed to set the system data/time to the specified time.
11 *
12 * History
13 *	07/2001 John George
14 *		-Ported
15 */
16
17#include <time.h>
18#include <sys/time.h>
19
20#include "tst_test.h"
21#include "stime_var.h"
22
23static struct timeval real_time_tv;
24
25static void run(void)
26{
27	time_t new_time;
28	struct timeval pres_time_tv;
29
30	if (gettimeofday(&real_time_tv, NULL) < 0)
31		tst_brk(TBROK | TERRNO, "gettimeofday() failed");
32
33	new_time = real_time_tv.tv_sec + 30;
34
35	if (do_stime(&new_time) < 0) {
36		tst_res(TFAIL | TERRNO, "stime(%ld) failed", new_time);
37		return;
38	}
39
40	if (gettimeofday(&pres_time_tv, NULL) < 0)
41		tst_brk(TBROK | TERRNO, "gettimeofday() failed");
42
43	switch (pres_time_tv.tv_sec - new_time) {
44	case 0:
45	case 1:
46		tst_res(TINFO, "pt.tv_sec: %ld", pres_time_tv.tv_sec);
47		tst_res(TPASS, "system time was set to %ld", new_time);
48	break;
49	default:
50		tst_res(TFAIL, "system time not set to %ld (got: %ld)",
51			new_time, pres_time_tv.tv_sec);
52	}
53}
54
55static void setup(void)
56{
57	stime_info();
58}
59
60static struct tst_test test = {
61	.test_all = run,
62	.needs_root = 1,
63	.restore_wallclock = 1,
64	.setup = setup,
65	.test_variants = TEST_VARIANTS,
66};
67