mirrors/CC-Tweaked
1
0
Fork 0
mirror of https://github.com/SquidDev-CC/CC-Tweaked synced 2025-11-18 14:15:12 +00:00
Code Issues Releases Wiki Activity

Remove string metatable protection

Browse Source 
The string metatable and environment are no longer shared, so this
sandboxing is no longer required.
This commit is contained in:
SquidDev
2017-05-01 18:34:42 +01:00
parent bb741975b7
commit 0420b6c831
1 changed files with 0 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
src/main/resources/assets/computercraft/lua/bios.lua
View File

@@ -144,39 +144,6 @@ if _VERSION == "Lua 5.3" then
]] )() ]] )()
end end
if string.find( _HOST, "ComputerCraft" ) == 1 then
-- Prevent access to metatables or environments of strings, as these are global between all computers
local nativegetmetatable = getmetatable
local nativeerror = error
local nativetype = type
local string_metatable = nativegetmetatable("")
function getmetatable( t )
local mt = nativegetmetatable( t )
if mt == string_metatable then
nativeerror( "Attempt to access string metatable", 2 )
else
return mt
end
end
if _VERSION == "Lua 5.1" and not _CC_DISABLE_LUA51_FEATURES then
local string_env = nativegetfenv(("").gsub)
function getfenv( env )
if env == nil then
env = 2
elseif nativetype( env ) == "number" and env > 0 then
env = env + 1
end
local fenv = nativegetfenv(env)
if fenv == string_env then
--nativeerror( "Attempt to access string metatable", 2 )
return nativegetfenv( 0 )
else
return fenv
end
end
end
end
-- Install lua parts of the os api -- Install lua parts of the os api
function os.version() function os.version()
return "CraftOS 1.8" return "CraftOS 1.8"