This is just like loader.perform, except it takes pre-parsed arguments. Review: https://reviews.freebsd.org/D14448
275 lines
4.9 KiB
C
275 lines
4.9 KiB
C
/*-
|
|
* Copyright (c) 2014 Pedro Souza <pedrosouza@freebsd.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "lua.h"
|
|
#include "lauxlib.h"
|
|
#include "lstd.h"
|
|
#include "lutils.h"
|
|
#include "bootstrap.h"
|
|
|
|
/*
|
|
* Like loader.perform, except args are passed already parsed
|
|
* on the stack.
|
|
*/
|
|
static int
|
|
lua_command(lua_State *L)
|
|
{
|
|
int i;
|
|
int res = 1;
|
|
int argc = lua_gettop(L);
|
|
char **argv;
|
|
|
|
argv = malloc(sizeof(char *) * (argc + 1));
|
|
if (argv == NULL)
|
|
return 0;
|
|
for (i = 0; i < argc; i++)
|
|
argv[i] = (char *)(intptr_t)luaL_checkstring(L, i + 1);
|
|
argv[argc] = NULL;
|
|
res = interp_builtin_cmd(argc, argv);
|
|
free(argv);
|
|
lua_pushinteger(L, res);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_perform(lua_State *L)
|
|
{
|
|
int argc;
|
|
char **argv;
|
|
int res = 1;
|
|
|
|
if (parse(&argc, &argv, luaL_checkstring(L, 1)) == 0) {
|
|
res = interp_builtin_cmd(argc, argv);
|
|
free(argv);
|
|
}
|
|
lua_pushinteger(L, res);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_getchar(lua_State *L)
|
|
{
|
|
|
|
lua_pushinteger(L, getchar());
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_ischar(lua_State *L)
|
|
{
|
|
|
|
lua_pushboolean(L, ischar());
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_gets(lua_State *L)
|
|
{
|
|
char buf[129];
|
|
|
|
ngets(buf, 128);
|
|
lua_pushstring(L, buf);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_time(lua_State *L)
|
|
{
|
|
|
|
lua_pushinteger(L, time(NULL));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_delay(lua_State *L)
|
|
{
|
|
|
|
delay((int)luaL_checknumber(L, 1));
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
lua_getenv(lua_State *L)
|
|
{
|
|
lua_pushstring(L, getenv(luaL_checkstring(L, 1)));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_setenv(lua_State *L)
|
|
{
|
|
const char *key, *val;
|
|
|
|
key = luaL_checkstring(L, 1);
|
|
val = luaL_checkstring(L, 2);
|
|
lua_pushinteger(L, setenv(key, val, 1));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_unsetenv(lua_State *L)
|
|
{
|
|
const char *ev;
|
|
|
|
ev = luaL_checkstring(L, 1);
|
|
lua_pushinteger(L, unsetenv(ev));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_printc(lua_State *L)
|
|
{
|
|
int status;
|
|
ssize_t l;
|
|
const char *s = luaL_checklstring(L, 1, &l);
|
|
|
|
status = (printf("%s", s) == l);
|
|
|
|
return status;
|
|
}
|
|
|
|
static int
|
|
lua_openfile(lua_State *L)
|
|
{
|
|
const char *str;
|
|
|
|
if (lua_gettop(L) != 1) {
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
str = lua_tostring(L, 1);
|
|
|
|
FILE * f = fopen(str, "r");
|
|
if (f != NULL) {
|
|
FILE ** ptr = (FILE**)lua_newuserdata(L, sizeof(FILE**));
|
|
*ptr = f;
|
|
} else
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_closefile(lua_State *L)
|
|
{
|
|
FILE ** f;
|
|
if (lua_gettop(L) != 1) {
|
|
lua_pushboolean(L, 0);
|
|
return 1;
|
|
}
|
|
|
|
f = (FILE**)lua_touserdata(L, 1);
|
|
if (f != NULL && *f != NULL) {
|
|
lua_pushboolean(L, fclose(*f) == 0 ? 1 : 0);
|
|
*f = NULL;
|
|
} else
|
|
lua_pushboolean(L, 0);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_readfile(lua_State *L)
|
|
{
|
|
FILE **f;
|
|
size_t size, r;
|
|
char * buf;
|
|
|
|
if (lua_gettop(L) < 1 || lua_gettop(L) > 2) {
|
|
lua_pushnil(L);
|
|
lua_pushinteger(L, 0);
|
|
return 2;
|
|
}
|
|
|
|
f = (FILE**)lua_touserdata(L, 1);
|
|
|
|
if (f == NULL || *f == NULL) {
|
|
lua_pushnil(L);
|
|
lua_pushinteger(L, 0);
|
|
return 2;
|
|
}
|
|
|
|
if (lua_gettop(L) == 2)
|
|
size = (size_t)lua_tonumber(L, 2);
|
|
else
|
|
size = (*f)->size;
|
|
|
|
|
|
buf = (char*)malloc(size);
|
|
r = fread(buf, 1, size, *f);
|
|
lua_pushlstring(L, buf, r);
|
|
free(buf);
|
|
lua_pushinteger(L, r);
|
|
|
|
return 2;
|
|
}
|
|
|
|
#define REG_SIMPLE(n) { #n, lua_ ## n }
|
|
static const struct luaL_Reg loaderlib[] = {
|
|
REG_SIMPLE(delay),
|
|
REG_SIMPLE(command),
|
|
REG_SIMPLE(getenv),
|
|
REG_SIMPLE(perform),
|
|
REG_SIMPLE(printc),
|
|
REG_SIMPLE(setenv),
|
|
REG_SIMPLE(time),
|
|
REG_SIMPLE(unsetenv),
|
|
{ NULL, NULL },
|
|
};
|
|
|
|
static const struct luaL_Reg iolib[] = {
|
|
{ "close", lua_closefile },
|
|
REG_SIMPLE(getchar),
|
|
REG_SIMPLE(gets),
|
|
REG_SIMPLE(ischar),
|
|
{ "open", lua_openfile },
|
|
{ "read", lua_readfile },
|
|
{ NULL, NULL },
|
|
};
|
|
#undef REG_SIMPLE
|
|
|
|
int
|
|
luaopen_loader(lua_State *L)
|
|
{
|
|
luaL_newlib(L, loaderlib);
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
luaopen_io(lua_State *L)
|
|
{
|
|
luaL_newlib(L, iolib);
|
|
return 1;
|
|
}
|