| 1 | /* settimeofday -- set system time - Linux version supporting 64 bit time. |
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| 2 | Copyright (C) 2020-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <errno.h> |
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| 20 | #include <time.h> |
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| 21 | #include <sys/time.h> |
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| 22 | |
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| 23 | /* Set the current time of day and timezone information. |
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| 24 | This call is restricted to the super-user. */ |
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| 25 | int |
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| 26 | __settimeofday64 (const struct __timeval64 *tv, const struct timezone *tz) |
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| 27 | { |
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| 28 | /* Backwards compatibility for setting the UTC offset. */ |
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| 29 | if (__glibc_unlikely (tz != 0)) |
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| 30 | { |
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| 31 | if (tv != 0) |
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| 32 | { |
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| 33 | __set_errno (EINVAL); |
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| 34 | return -1; |
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| 35 | } |
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| 36 | return __settimezone (tz: tz); |
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| 37 | } |
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| 38 | |
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| 39 | struct __timespec64 ts = timeval64_to_timespec64 (tv64: *tv); |
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| 40 | return __clock_settime64 (CLOCK_REALTIME, &ts); |
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| 41 | } |
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| 42 | |
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| 43 | #if __TIMESIZE != 64 |
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| 44 | libc_hidden_def (__settimeofday64) |
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| 45 | |
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| 46 | int |
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| 47 | __settimeofday (const struct timeval *tv, const struct timezone *tz) |
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| 48 | { |
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| 49 | if (__glibc_unlikely (tv == NULL)) |
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| 50 | return __settimeofday64 (NULL, tz); |
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| 51 | else |
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| 52 | { |
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| 53 | struct __timeval64 tv64 = valid_timeval_to_timeval64 (*tv); |
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| 54 | return __settimeofday64 (&tv64, tz); |
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| 55 | } |
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| 56 | } |
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| 57 | #endif |
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| 58 | weak_alias (__settimeofday, settimeofday); |
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| 59 | |
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