| /* Convert UTC calendar time to simple time. Like mktime but assumes UTC. |
| |
| Copyright (C) 1994-2014 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/>. */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #ifdef _LIBC |
| # include <time.h> |
| #else |
| # include "timegm.h" |
| |
| /* Portable standalone applications should supply a "time_r.h" that |
| declares a POSIX-compliant gmtime_r, for the benefit of older |
| implementations that lack gmtime_r or have a nonstandard one. |
| See the gnulib time_r module for one way to implement this. */ |
| # include <time_r.h> |
| # undef __gmtime_r |
| # define __gmtime_r gmtime_r |
| time_t __mktime_internal (struct tm *, |
| struct tm * (*) (time_t const *, struct tm *), |
| time_t *); |
| #endif |
| |
| time_t |
| timegm (struct tm *tmp) |
| { |
| static time_t gmtime_offset; |
| tmp->tm_isdst = 0; |
| return __mktime_internal (tmp, __gmtime_r, &gmtime_offset); |
| } |
