libc/time/gettimeofday.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <time.h>
  20 #include <stdio.h>
  21 #include <errno.h>
  22 #include <sys/time.h>
  23
  24 int gettimeofday (struct timeval *tv, struct timezone *tz)
  25 {
  26         if (tv) {
  27                 tv->tv_sec = time (0);
  28                 tv->tv_usec = 0;        /* TODO */
  29         }
  30
  31         /* OBSOLETE, but TODO */
  32         if (tz) {
  33                 tz->tz_minuteswest = 0;
  34                 tz->tz_dsttime = DST_NONE;
  35         }
  36
  37         if (!tv && !tz) {
  38                 errno = EFAULT;
  39                 return 0;
  40         }
  41
  42         return 0;
  43 }
  44