1 /* Copyright (C) 1991-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <errno.h>
19 #include <time.h>
20 #include <sys/time.h>
21
22 /* Set the current time of day and timezone information.
23 This call is restricted to the super-user. */
24 int
__settimeofday(const struct timeval * tv,const struct timezone * tz)25 __settimeofday (const struct timeval *tv, const struct timezone *tz)
26 {
27 if (__glibc_unlikely (tz != 0))
28 {
29 if (tv != 0)
30 {
31 __set_errno (EINVAL);
32 return -1;
33 }
34 return __settimezone (tz);
35 }
36
37 struct timespec ts;
38 TIMEVAL_TO_TIMESPEC (tv, &ts);
39 return __clock_settime (CLOCK_REALTIME, &ts);
40 }
41
42 #ifdef VERSION_settimeofday
43 weak_alias (__settimeofday, __settimeofday_w);
44 default_symbol_version (__settimeofday_w, settimeofday, VERSION_settimeofday);
45 #else
46 weak_alias (__settimeofday, settimeofday);
47 #endif
48