sysdeps/unix/utime.c

   1 /* Copyright (C) 1991, 1994, 1997 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 Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    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    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <sysdep.h>
  20 #include <errno.h>
  21 #include <utime.h>
  22 #include <time.h>
  23 #include <sys/types.h>
  24 #include <sys/time.h>
  25
  26
  27 /* Set the access and modification times of FILE to those given in TIMES.
  28    If TIMES is NULL, set them to the current time.  */
  29 int
  30 utime (file, times)
  31      const char *file;
  32      const struct utimbuf *times;
  33 {
  34   struct timeval timevals[2];
  35
  36   if (times != NULL)
  37     {
  38       timevals[0].tv_sec = (long int) times->actime;
  39       timevals[0].tv_usec = 0L;
  40       timevals[1].tv_sec = (long int) times->modtime;
  41       timevals[1].tv_usec = 0L;
  42     }
  43   else
  44     {
  45       if (__gettimeofday (&timevals[0], NULL) < 0)
  46         return -1;
  47       timevals[1] = timevals[0];
  48     }
  49
  50   return __utimes (file, timevals);
  51 }