arch/common/boot/grub2/loader/i386/pc/chainloader_normal.c

   1 /* chainloader_normal.c - boot another boot loader */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2004,2007  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/machine/chainloader.h>
  21 #include <grub/err.h>
  22 #include <grub/normal.h>
  23 #include <grub/dl.h>
  24
  25 static const struct grub_arg_option options[] =
  26   {
  27     {"force", 'f', 0, "skip bootsector magic number test", 0, 0},
  28     {0, 0, 0, 0, 0, 0}
  29   };
  30
  31 static grub_err_t
  32 chainloader_command (struct grub_arg_list *state,
  33                      int argc, char **args)
  34 {
  35   grub_chainloader_flags_t flags = state[0].set ? GRUB_CHAINLOADER_FORCE : 0;
  36
  37   if (argc == 0)
  38     grub_error (GRUB_ERR_BAD_ARGUMENT, "no file specified");
  39   else
  40     grub_chainloader_cmd (args[0], flags);
  41   return grub_errno;
  42 }
  43
  44 GRUB_MOD_INIT(chainloader_normal)
  45 {
  46   (void) mod; /* To stop warning.  */
  47   grub_register_command ("chainloader", chainloader_command,
  48                          GRUB_COMMAND_FLAG_BOTH,
  49                          "chainloader [-f] FILE",
  50                          "Prepare to boot another boot loader.", options);
  51 }
  52
  53 GRUB_MOD_FINI(chainloader_normal)
  54 {
  55   grub_unregister_command ("chainloader");
  56 }