1 /* Copyright (C) 1991-2013 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 (tv, tz)
36 tv->tv_sec = (long int) time ((time_t *) NULL);
41 const time_t timer = tv->tv_sec;
45 const long int save_timezone = __timezone;
46 const long int save_daylight = __daylight;
48 save_tzname[0] = __tzname[0];
49 save_tzname[1] = __tzname[1];
51 tmp = localtime_r (&timer, &tm);
53 tz->tz_minuteswest = __timezone / 60;
54 tz->tz_dsttime = __daylight;
56 __timezone = save_timezone;
57 __daylight = save_daylight;
58 __tzname[0] = save_tzname[0];
59 __tzname[1] = save_tzname[1];
67 libc_hidden_def (__gettimeofday)
68 weak_alias (__gettimeofday, gettimeofday)
69 libc_hidden_weak (gettimeofday)