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- /* rescue_parser.c - rescue mode parser */
- /*
- * 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/types.h>
- #include <grub/mm.h>
- #include <grub/env.h>
- #include <grub/parser.h>
- #include <grub/misc.h>
- #include <grub/command.h>
- static grub_err_t
- grub_rescue_parse_line (char *line, grub_reader_getline_t getline,
- void *closure)
- {
- char *name;
- int n;
- grub_command_t cmd;
- char **args;
- if (grub_parser_split_cmdline (line, getline, closure, &n, &args) || n < 0)
- return grub_errno;
- if (n == 0)
- return GRUB_ERR_NONE;
- /* In case of an assignment set the environment accordingly
- instead of calling a function. */
- if (n == 1 && grub_strchr (line, '='))
- {
- char *val = grub_strchr (args[0], '=');
- val[0] = 0;
- grub_env_set (args[0], val + 1);
- val[0] = '=';
- goto quit;
- }
- /* Get the command name. */
- name = args[0];
- /* If nothing is specified, restart. */
- if (*name == '\0')
- goto quit;
- cmd = grub_command_find (name);
- if (cmd)
- {
- (cmd->func) (cmd, n - 1, &args[1]);
- }
- else
- {
- grub_printf ("Unknown command `%s'\n", name);
- if (grub_command_find ("help"))
- grub_printf ("Try `help' for usage\n");
- }
- quit:
- grub_free (args[0]);
- grub_free (args);
- return grub_errno;
- }
- static struct grub_parser grub_rescue_parser =
- {
- .name = "rescue",
- .parse_line = grub_rescue_parse_line
- };
- void
- grub_register_rescue_parser (void)
- {
- grub_parser_register ("rescue", &grub_rescue_parser);
- }
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