sysdeps/unix/time.c

   1 /* Copyright (C) 1991,92,97,2001,02 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   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.
   8
   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.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <stddef.h>             /* For NULL.  */
  20 #include <time.h>
  21 #include <sys/time.h>
  22
  23
  24 /* Return the current time as a `time_t' and also put it in *T if T is
  25    not NULL.  Time is represented as seconds from Jan 1 00:00:00 1970.  */
  26 time_t
  27 time (t)
  28      time_t *t;
  29 {
  30   struct timeval tv;
  31   time_t result;
  32
  33   if (__gettimeofday (&tv, (struct timezone *) NULL))
  34     result = (time_t) -1;
  35   else
  36     result = (time_t) tv.tv_sec;
  37
  38   if (t != NULL)
  39     *t = result;
  40   return result;
  41 }
  42 libc_hidden_def (time)