sysdeps/mach/hurd/reboot.c

   1 /* Copyright (C) 1992, 1993, 1994 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
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <ansidecl.h>
  20 #include <errno.h>
  21 #include <unistd.h>
  22 #include <hurd.h>
  23 #include <hurd/startup.h>
  24
  25 /* Reboot the system.  */
  26 int
  27 DEFUN(reboot, (howto), int howto)
  28 {
  29   error_t err;
  30   startup_t init;
  31   mach_port_t hostpriv, devmaster;
  32
  33   if (err = __USEPORT (PROC, __proc_getprivports (port,
  34                                                   &hostpriv, &devmaster)))
  35     return __hurd_fail (err);
  36   __mach_port_deallocate (__mach_task_self (), devmaster);
  37
  38   err = __USEPORT (PROC, __proc_getmsgport (port, 1, &init));
  39   if (!err)
  40     {
  41       err = __startup_reboot (init, hostpriv, howto);
  42       __mach_port_deallocate (__mach_task_self (), init);
  43     }
  44
  45   __mach_port_deallocate (__mach_task_self (), hostpriv);
  46
  47   if (err)
  48     return __hurd_fail (err);
  49
  50   return 0;
  51 }