grub/kern/corecmd.c
carles 864ba2bbca 2009-12-27 Carles Pina i Estany <carles@pina.cat>
* efiemu/main.c (GRUB_MOD_INIT): Fix capitalizations and/or full
	stops.
	* kern/corecmd.c (grub_register_core_commands): Likewise.
	* loader/efi/chainloader.c (GRUB_MOD_INIT): Likewise.
	* loader/i386/bsd.c (GRUB_MOD_INIT): Likewise.
	* loader/i386/efi/linux.c (GRUB_MOD_INIT): Likewise.
	* loader/i386/ieee1275/linux.c (GRUB_MOD_INIT): Likewise.
	* loader/i386/linux.c (GRUB_MOD_INIT): Likewise.
	* loader/i386/pc/chainloader.c (GRUB_MOD_INIT): Likewise.
	* loader/i386/pc/linux.c (GRUB_MOD_INIT): Likewise.
	* loader/multiboot_loader.c (GRUB_MOD_INIT): Likewise.
	* loader/powerpc/ieee1275/linux.c (GRUB_MOD_INIT): Likewise.
	* loader/sparc64/ieee1275/linux.c (GRUB_MOD_INIT): Likewise.
	* loader/xnu.c (GRUB_MOD_INIT): Likewise.
	* mmap/mmap.c (GRUB_MOD_INIT): Likewise.
	* normal/handler.c (insert_handler): Likewise.
	* normal/main.c (GRUB_MOD_INIT): Likewise.
	* term/gfxterm.c (GRUB_MOD_INIT): Likewise.
2009-12-26 11:01:33 +01:00

202 lines
4.5 KiB
C

/* corecmd.c - critical commands which are registered in kernel */
/*
* 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/mm.h>
#include <grub/dl.h>
#include <grub/err.h>
#include <grub/env.h>
#include <grub/misc.h>
#include <grub/term.h>
#include <grub/file.h>
#include <grub/device.h>
#include <grub/command.h>
/* set ENVVAR=VALUE */
static grub_err_t
grub_core_cmd_set (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
{
char *var;
char *val;
auto int print_env (struct grub_env_var *env);
int print_env (struct grub_env_var *env)
{
grub_printf ("%s=%s\n", env->name, env->value);
return 0;
}
if (argc < 1)
{
grub_env_iterate (print_env);
return 0;
}
var = argv[0];
val = grub_strchr (var, '=');
if (! val)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "not an assignment");
val[0] = 0;
grub_env_set (var, val + 1);
val[0] = '=';
return 0;
}
static grub_err_t
grub_core_cmd_unset (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
{
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"no environment variable specified");
grub_env_unset (argv[0]);
return 0;
}
static grub_err_t
grub_core_cmd_export (struct grub_command *cmd __attribute__ ((unused)),
int argc, char **args)
{
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"no environment variable specified");
grub_env_export (args[0]);
return 0;
}
/* insmod MODULE */
static grub_err_t
grub_core_cmd_insmod (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
{
char *p;
grub_dl_t mod;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no module specified");
p = grub_strchr (argv[0], '/');
if (! p)
mod = grub_dl_load (argv[0]);
else
mod = grub_dl_load_file (argv[0]);
if (mod)
grub_dl_ref (mod);
return 0;
}
static int
grub_mini_print_devices (const char *name)
{
grub_printf ("(%s) ", name);
return 0;
}
static int
grub_mini_print_files (const char *filename,
const struct grub_dirhook_info *info)
{
grub_printf ("%s%s ", filename, info->dir ? "/" : "");
return 0;
}
/* ls [ARG] */
static grub_err_t
grub_core_cmd_ls (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
{
if (argc < 1)
{
grub_device_iterate (grub_mini_print_devices);
grub_putchar ('\n');
grub_refresh ();
}
else
{
char *device_name;
grub_device_t dev;
grub_fs_t fs;
char *path;
device_name = grub_file_get_device_name (argv[0]);
dev = grub_device_open (device_name);
if (! dev)
goto fail;
fs = grub_fs_probe (dev);
path = grub_strchr (argv[0], ')');
if (! path)
path = argv[0];
else
path++;
if (! path && ! device_name)
{
grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid argument");
goto fail;
}
if (! path)
{
if (grub_errno == GRUB_ERR_UNKNOWN_FS)
grub_errno = GRUB_ERR_NONE;
grub_printf ("(%s): Filesystem is %s.\n",
device_name, fs ? fs->name : "unknown");
}
else if (fs)
{
(fs->dir) (dev, path, grub_mini_print_files);
grub_putchar ('\n');
grub_refresh ();
}
fail:
if (dev)
grub_device_close (dev);
grub_free (device_name);
}
return grub_errno;
}
void
grub_register_core_commands (void)
{
grub_register_command ("set", grub_core_cmd_set,
"[ENVVAR=VALUE]", "Set an environment variable.");
grub_register_command ("unset", grub_core_cmd_unset,
"ENVVAR", "Remove an environment variable.");
grub_register_command ("export", grub_core_cmd_export,
"ENVVAR", "Export a variable.");
grub_register_command ("ls", grub_core_cmd_ls,
"[ARG]", "List devices or files.");
grub_register_command ("insmod", grub_core_cmd_insmod,
"MODULE", "Insert a module.");
}