mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/* Copyright (C) 1991-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <time.h>
|
|
#include <sys/time.h>
|
|
|
|
/* Get the current time of day and timezone information,
|
|
putting it into *TV and *TZ. If TZ is NULL, *TZ is not filled.
|
|
Returns 0 on success, -1 on errors. */
|
|
int
|
|
__gettimeofday (struct timeval *tv, struct timezone *tz)
|
|
{
|
|
if (tv == NULL)
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
tv->tv_sec = (long int) time ((time_t *) NULL);
|
|
tv->tv_usec = 0L;
|
|
|
|
if (tz != NULL)
|
|
{
|
|
const time_t timer = tv->tv_sec;
|
|
struct tm tm;
|
|
const struct tm *tmp;
|
|
|
|
const long int save_timezone = __timezone;
|
|
const long int save_daylight = __daylight;
|
|
char *save_tzname[2];
|
|
save_tzname[0] = __tzname[0];
|
|
save_tzname[1] = __tzname[1];
|
|
|
|
tmp = localtime_r (&timer, &tm);
|
|
|
|
tz->tz_minuteswest = __timezone / 60;
|
|
tz->tz_dsttime = __daylight;
|
|
|
|
__timezone = save_timezone;
|
|
__daylight = save_daylight;
|
|
__tzname[0] = save_tzname[0];
|
|
__tzname[1] = save_tzname[1];
|
|
|
|
if (tmp == NULL)
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
libc_hidden_def (__gettimeofday)
|
|
weak_alias (__gettimeofday, gettimeofday)
|
|
libc_hidden_weak (gettimeofday)
|