sysdeps/mach/hurd/utimes.c

   1 /* Copyright (C) 1991-1995,1997,1999,2000,2006
   2         Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <sys/time.h>
  21 #include <errno.h>
  22 #include <stddef.h>
  23 #include <hurd.h>
  24
  25 /* Change the access time of FILE to TVP[0] and
  26    the modification time of FILE to TVP[1].  */
  27 int
  28 __utimes (file, tvp)
  29      const char *file;
  30      const struct timeval tvp[2];
  31 {
  32   union tv
  33   {
  34     struct timeval tv;
  35     time_value_t tvt;
  36   };
  37   const union tv *u = (const union tv *) tvp;
  38   union tv nulltv[2];
  39   error_t err;
  40   file_t port;
  41
  42   if (tvp == NULL)
  43     {
  44       /* Setting the number of microseconds to `-1' tells the
  45          underlying filesystems to use the current time.  */
  46       nulltv[0].tvt.microseconds = nulltv[1].tvt.microseconds = -1;
  47       u = nulltv;
  48     }
  49
  50   port = __file_name_lookup (file, 0, 0);
  51   if (port == MACH_PORT_NULL)
  52     return -1;
  53   err = __file_utimes (port, u[0].tvt, u[1].tvt);
  54   __mach_port_deallocate (__mach_task_self (), port);
  55   if (err)
  56     return __hurd_fail (err);
  57   return 0;
  58 }
  59 weak_alias (__utimes, utimes)