108 lines
2.2 KiB
C
108 lines
2.2 KiB
C
/*
|
|
* 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 "lua.h"
|
|
#include "lauxlib.h"
|
|
#include "lualib.h"
|
|
#include "grub_lib.h"
|
|
|
|
#include <grub/env.h>
|
|
#include <grub/parser.h>
|
|
#include <grub/command.h>
|
|
|
|
static int
|
|
grub_lua_run (lua_State *state)
|
|
{
|
|
int n;
|
|
char **args;
|
|
grub_err_t result;
|
|
|
|
if (! lua_gettop(state))
|
|
return 0;
|
|
|
|
if ((! grub_parser_split_cmdline (lua_tostring (state, 1), 0, &n, &args))
|
|
&& (n >= 0))
|
|
{
|
|
grub_command_t cmd;
|
|
|
|
cmd = grub_command_find (args[0]);
|
|
if (cmd)
|
|
(cmd->func) (cmd, n, &args[1]);
|
|
else
|
|
grub_error (GRUB_ERR_FILE_NOT_FOUND, "command not found");
|
|
|
|
grub_free (args[0]);
|
|
grub_free (args);
|
|
}
|
|
|
|
result = grub_errno;
|
|
grub_errno = 0;
|
|
|
|
lua_pushinteger(state, result);
|
|
|
|
if (result)
|
|
lua_pushstring (state, grub_errmsg);
|
|
|
|
return (result) ? 2 : 1;
|
|
}
|
|
|
|
static int
|
|
grub_lua_getenv (lua_State *state)
|
|
{
|
|
int n, i;
|
|
|
|
n = lua_gettop(state);
|
|
for (i = 1; i <= n; i++)
|
|
{
|
|
char *name, *value;
|
|
|
|
name = lua_tostring (state, i);
|
|
value = grub_env_get (name);
|
|
if (value)
|
|
lua_pushstring (state, value);
|
|
else
|
|
lua_pushnil (state);
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
static int
|
|
grub_lua_setenv (lua_State *state)
|
|
{
|
|
char *name, *value;
|
|
|
|
if (lua_gettop(state) != 2)
|
|
return 0;
|
|
|
|
name = lua_tostring (state, 1);
|
|
value = lua_tostring (state, 2);
|
|
|
|
if (name[0])
|
|
grub_env_set (name, value);
|
|
|
|
return 0;
|
|
}
|
|
|
|
luaL_Reg grub_lua_lib[] =
|
|
{
|
|
{"run", grub_lua_run},
|
|
{"getenv", grub_lua_getenv},
|
|
{"setenv", grub_lua_setenv},
|
|
{0, 0}
|
|
};
|