grub/commands/i386/pc/halt.c

/* halt.c - command to halt the computer.  */
/*
 *  GRUB  --  GRand Unified Bootloader
 *  Copyright (C) 2005,2007  Free Software Foundation, Inc.
 *
 *  GRUB is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  GRUB is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/extcmd.h>

static const struct grub_arg_option options[] =
  {
    {"no-apm", 'n', 0, "Do not use APM to halt the computer.", 0, 0},
    {0, 0, 0, 0, 0, 0}
  };

static grub_err_t
grub_cmd_halt (grub_extcmd_t cmd,
	       int argc __attribute__ ((unused)),
	       char **args __attribute__ ((unused)))

{
  struct grub_arg_list *state = cmd->state;
  int no_apm = 0;
  if (state[0].set)
    no_apm = 1;
  grub_halt (no_apm);
  return 0;
}

static grub_extcmd_t cmd;

GRUB_MOD_INIT(halt)
{
  cmd = grub_register_extcmd ("halt", grub_cmd_halt, GRUB_COMMAND_FLAG_BOTH,
			      "[-n]",
			      "Halt the system, if possible using APM.",
			      options);
}

GRUB_MOD_FINI(halt)
{
  grub_unregister_extcmd (cmd);
}