Fix secure io.open without mode

This commit is contained in:
ShadowNinja 2016-11-24 09:58:21 -05:00
parent 0d1c9598a0
commit 9e10f9f49a

@ -525,14 +525,19 @@ int ScriptApiSecurity::sl_g_require(lua_State *L)
int ScriptApiSecurity::sl_io_open(lua_State *L)
{
bool with_mode = lua_gettop(L) > 1;
luaL_checktype(L, 1, LUA_TSTRING);
const char *path = lua_tostring(L, 1);
CHECK_SECURE_PATH(L, path);
push_original(L, "io", "open");
lua_pushvalue(L, 1);
lua_pushvalue(L, 2);
lua_call(L, 2, 2);
if (with_mode) {
lua_pushvalue(L, 2);
}
lua_call(L, with_mode ? 2 : 1, 2);
return 2;
}