grub/grub-core/commands/handler.c
Vladimir 'phcoder' Serbinenko 975cffff74 merge mainline into net
2010-09-01 23:28:02 +02:00

101 lines
2.4 KiB
C

/* handler.c - commands to list or select handlers */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 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/err.h>
#include <grub/misc.h>
#include <grub/term.h>
#include <grub/handler.h>
#include <grub/command.h>
#include <grub/i18n.h>
static grub_err_t
grub_cmd_handler (struct grub_command *cmd __attribute__ ((unused)),
int argc, char **args)
{
void *curr_item = 0;
grub_handler_class_t head;
auto int list_item (grub_named_list_t item);
int list_item (grub_named_list_t item)
{
if (item == curr_item)
grub_putchar ('*');
grub_printf ("%s\n", item->name);
return 0;
}
head = grub_handler_class_list;
if (argc == 0)
{
grub_list_iterate (GRUB_AS_LIST (head), (grub_list_hook_t) list_item);
}
else
{
char *class_name;
grub_handler_class_t class;
class_name = args[0];
argc--;
args++;
class = grub_named_list_find (GRUB_AS_NAMED_LIST (head), class_name);
if (! class)
return grub_error (GRUB_ERR_FILE_NOT_FOUND, "class not found");
if (argc == 0)
{
curr_item = class->cur_handler;
grub_list_iterate (GRUB_AS_LIST (class->handler_list),
(grub_list_hook_t) list_item);
}
else
{
grub_handler_t handler;
handler =
grub_named_list_find (GRUB_AS_NAMED_LIST (class->handler_list),
args[0]);
if (! handler)
return grub_error (GRUB_ERR_FILE_NOT_FOUND, "handler not found");
grub_handler_set_current (class, handler);
}
}
return 0;
}
static grub_command_t cmd_handler;
GRUB_MOD_INIT(handler)
{
cmd_handler =
grub_register_command ("handler", grub_cmd_handler,
N_("[class [handler]]"),
N_("List or select a handler."));
}
GRUB_MOD_FINI(handler)
{
grub_unregister_command (cmd_handler);
}