1 | /* Test for settimeofday |
2 | Copyright (C) 2021-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library 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 the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <time.h> |
20 | #include <stdlib.h> |
21 | #include <sys/time.h> |
22 | #include <support/check.h> |
23 | #include <support/xtime.h> |
24 | |
25 | #define TIMESPEC_SEC_Y2038_OV 0x7FFFFFFF |
26 | #define FUTURE_TIME (TIMESPEC_SEC_Y2038_OV - 10) |
27 | |
28 | static int |
29 | do_test (void) |
30 | { |
31 | const struct timeval tv = { FUTURE_TIME, 0}; |
32 | struct timespec tv_future, tv_now; |
33 | |
34 | /* Check if altering target time is allowed. */ |
35 | if (getenv (SETTIME_ENV_NAME) == NULL) |
36 | FAIL_UNSUPPORTED ("settimeofday is executed only when " \ |
37 | SETTIME_ENV_NAME" is set\n" ); |
38 | |
39 | tv_now = xclock_now (CLOCK_REALTIME); |
40 | int ret = settimeofday (tv: &tv, NULL); |
41 | if (ret == -1) |
42 | FAIL_EXIT1 ("settimeofday failed: %m\n" ); |
43 | |
44 | tv_future = xclock_now (CLOCK_REALTIME); |
45 | |
46 | /* Restore old time value on target machine. */ |
47 | xclock_settime (CLOCK_REALTIME, ts: (const struct timespec*) &tv_now); |
48 | |
49 | if (tv_future.tv_sec < tv.tv_sec) |
50 | FAIL_EXIT1 ("settimeofday set wrong time!\n" ); |
51 | |
52 | return 0; |
53 | } |
54 | |
55 | #include <support/test-driver.c> |
56 | |