arch/common/boot/grub2/commands/i386/pc/halt.c

   1 /* halt.c - command to halt the computer.  */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2005,2007  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/normal.h>
  21 #include <grub/dl.h>
  22 #include <grub/arg.h>
  23 #include <grub/machine/init.h>
  24
  25 static const struct grub_arg_option options[] =
  26   {
  27     {"no-apm", 'n', 0, "do not use APM to halt the computer", 0, 0},
  28     {0, 0, 0, 0, 0, 0}
  29   };
  30
  31 static grub_err_t
  32 grub_cmd_halt (struct grub_arg_list *state,
  33                int argc __attribute__ ((unused)),
  34                char **args __attribute__ ((unused)))
  35
  36 {
  37   int no_apm = 0;
  38   if (state[0].set)
  39     no_apm = 1;
  40   grub_halt (no_apm);
  41   return 0;
  42 }
  43
  44
  45 \f
  46 GRUB_MOD_INIT(halt)
  47 {
  48   (void)mod;                    /* To stop warning. */
  49   grub_register_command ("halt", grub_cmd_halt, GRUB_COMMAND_FLAG_BOTH,
  50                          "halt [-n]",
  51                          "Halt the system, if possible using APM", options);
  52 }
  53
  54 GRUB_MOD_FINI(halt)
  55 {
  56   grub_unregister_command ("halt");
  57 }