1 /* Copyright (C) 1991-2017 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
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 <http://www.gnu.org/licenses/>. */
22 /* Get the current time of day and timezone information,
23 putting it into *TV and *TZ. If TZ is NULL, *TZ is not filled.
24 Returns 0 on success, -1 on errors. */
26 __gettimeofday (struct timeval
*tv
, struct timezone
*tz
)
34 tv
->tv_sec
= (long int) time ((time_t *) NULL
);
39 const time_t timer
= tv
->tv_sec
;
43 const long int save_timezone
= __timezone
;
44 const long int save_daylight
= __daylight
;
46 save_tzname
[0] = __tzname
[0];
47 save_tzname
[1] = __tzname
[1];
49 tmp
= localtime_r (&timer
, &tm
);
51 tz
->tz_minuteswest
= __timezone
/ 60;
52 tz
->tz_dsttime
= __daylight
;
54 __timezone
= save_timezone
;
55 __daylight
= save_daylight
;
56 __tzname
[0] = save_tzname
[0];
57 __tzname
[1] = save_tzname
[1];
65 libc_hidden_def (__gettimeofday
)
66 weak_alias (__gettimeofday
, gettimeofday
)
67 libc_hidden_weak (gettimeofday
)