115 lines
2.9 KiB
C
115 lines
2.9 KiB
C
/* handler.c - commands to list or select handlers */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/dl.h>
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#include <grub/err.h>
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#include <grub/misc.h>
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#include <grub/term.h>
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#include <grub/handler.h>
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#include <grub/command.h>
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static grub_err_t
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grub_cmd_handler (struct grub_command *cmd,
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int argc, char **args)
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{
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char *class_name;
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void *curr_item = 0;
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grub_handler_class_t head;
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auto int list_item (grub_named_list_t item);
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int list_item (grub_named_list_t item)
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{
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if (item == curr_item)
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grub_putchar ('*');
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grub_printf ("%s\n", item->name);
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return 0;
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}
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class_name = (grub_strcmp (cmd->name, "handler")) ? (char *) cmd->name : 0;
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head = grub_handler_class_list;
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if ((argc == 0) && (class_name == 0))
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{
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grub_list_iterate (GRUB_AS_LIST (head), (grub_list_hook_t) list_item);
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}
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else
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{
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grub_handler_class_t class;
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if (class_name == 0)
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{
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class_name = args[0];
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argc--;
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args++;
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}
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class = grub_named_list_find (GRUB_AS_NAMED_LIST (head), class_name);
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if (! class)
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return grub_error (GRUB_ERR_FILE_NOT_FOUND, "class not found");
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if (argc == 0)
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{
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curr_item = class->cur_handler;
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grub_list_iterate (GRUB_AS_LIST (class->handler_list),
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(grub_list_hook_t) list_item);
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}
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else
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{
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grub_handler_t handler;
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handler =
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grub_named_list_find (GRUB_AS_NAMED_LIST (class->handler_list),
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args[0]);
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if (! handler)
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return grub_error (GRUB_ERR_FILE_NOT_FOUND, "handler not found");
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grub_handler_set_current (class, handler);
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}
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}
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return 0;
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}
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static grub_command_t cmd_handler, cmd_terminal_input, cmd_terminal_output;
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GRUB_MOD_INIT(handler)
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{
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cmd_handler =
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grub_register_command ("handler", grub_cmd_handler,
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"[class [handler]]",
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"List or select a handler.");
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cmd_terminal_input =
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grub_register_command ("terminal_input", grub_cmd_handler,
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"[handler]",
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"List or select an input terminal.");
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cmd_terminal_output =
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grub_register_command ("terminal_output", grub_cmd_handler,
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"[handler]",
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"List or select an output terminal.");
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}
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GRUB_MOD_FINI(handler)
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{
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grub_unregister_command (cmd_handler);
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grub_unregister_command (cmd_terminal_input);
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grub_unregister_command (cmd_terminal_output);
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}
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