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69054044 | 1 | /* Test for settimeofday |
581c785b | 2 | Copyright (C) 2021-2022 Free Software Foundation, Inc. |
69054044 LM |
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, 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, (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> |