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