sysdeps/mach/hurd/reboot.c

   1 /* Copyright (C) 1992-2015 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 <errno.h>
  19 #include <unistd.h>
  20 #include <hurd.h>
  21 #include <hurd/startup.h>
  22 #include <sys/reboot.h>
  23
  24 /* Reboot the system.  */
  25 int
  26 reboot (int howto)
  27 {
  28   error_t err;
  29   startup_t init;
  30   mach_port_t hostpriv;
  31
  32   err = __get_privileged_ports (&hostpriv, NULL);
  33   if (err)
  34     return __hurd_fail (EPERM);
  35
  36   err = __USEPORT (PROC, __proc_getmsgport (port, 1, &init));
  37   if (!err)
  38     {
  39       err = __startup_reboot (init, hostpriv, howto);
  40       __mach_port_deallocate (__mach_task_self (), init);
  41     }
  42
  43   __mach_port_deallocate (__mach_task_self (), hostpriv);
  44
  45   if (err)
  46     return __hurd_fail (err);
  47
  48   return 0;
  49 }