sysdeps/mach/hurd/settimeofday.c

   1 /* Copyright (C) 1991,92,93,94,95,97,2001 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 <errno.h>
  20 #include <sys/time.h>
  21 #include <hurd.h>
  22 #include <hurd/port.h>
  23
  24 /* Set the current time of day and timezone information.
  25    This call is restricted to the super-user.  */
  26 int
  27 __settimeofday (tv, tz)
  28      const struct timeval *tv;
  29      const struct timezone *tz;
  30 {
  31   error_t err;
  32   mach_port_t hostpriv;
  33
  34   if (tz != NULL)
  35     {
  36       errno = ENOSYS;
  37       return -1;
  38     }
  39
  40   err = __get_privileged_ports (&hostpriv, NULL);
  41   if (err)
  42     return __hurd_fail (EPERM);
  43
  44   /* `time_value_t' and `struct timeval' are in fact identical with the
  45      names changed.  */
  46   err = __host_set_time (hostpriv, *(time_value_t *) tv);
  47   __mach_port_deallocate (__mach_task_self (), hostpriv);
  48
  49   if (err)
  50     return __hurd_fail (err);
  51
  52   return 0;
  53 }
  54
  55 weak_alias (__settimeofday, settimeofday)