sysdeps/mach/hurd/utimes.c

   1 /* Copyright (C) 1991-2016 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, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <sys/time.h>
  19 #include <errno.h>
  20 #include <stddef.h>
  21 #include <hurd.h>
  22
  23 /* Change the access time of FILE to TVP[0] and
  24    the modification time of FILE to TVP[1].  */
  25 int
  26 __utimes (const char *file, const struct timeval tvp[2])
  27 {
  28   union tv
  29   {
  30     struct timeval tv;
  31     time_value_t tvt;
  32   };
  33   const union tv *u = (const union tv *) tvp;
  34   union tv nulltv[2];
  35   error_t err;
  36   file_t port;
  37
  38   if (tvp == NULL)
  39     {
  40       /* Setting the number of microseconds to `-1' tells the
  41          underlying filesystems to use the current time.  */
  42       nulltv[0].tvt.microseconds = nulltv[1].tvt.microseconds = -1;
  43       u = nulltv;
  44     }
  45
  46   port = __file_name_lookup (file, 0, 0);
  47   if (port == MACH_PORT_NULL)
  48     return -1;
  49   err = __file_utimes (port, u[0].tvt, u[1].tvt);
  50   __mach_port_deallocate (__mach_task_self (), port);
  51   if (err)
  52     return __hurd_fail (err);
  53   return 0;
  54 }
  55 weak_alias (__utimes, utimes)