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Add Check to load()

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This commit is contained in:
Wilma456 2017-08-24 20:18:21 +02:00
parent 4f9de6b02c
commit 79697e37b0
1 changed files with 12 additions and 0 deletions
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12
src/main/resources/assets/computercraft/lua/bios.lua
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@ -6,6 +6,18 @@ if _VERSION == "Lua 5.1" then
local nativeloadstring = loadstring
local nativesetfenv = setfenv
function load( x, name, mode, env )
if type( x ) ~= "string" then
error( "bad argument #1 (expected string, got " .. type( x ) .. ")", 2 )
end
if name ~= nil and type( name ) ~= "string" then
error( "bad argument #2 (expected string, got " .. type( name ) .. ")", 2 )
end
if mode ~= nil and type( mode ) ~= "string" then
error( "bad argument #3 (expected string, got " .. type( mode ) .. ")", 2 )
end
if env ~= nil and type( env) ~= "table" then
error( "bad argument #4 (expected table, got " .. type( env ) .. ")", 2 )
end
if mode ~= nil and mode ~= "t" then
error( "Binary chunk loading prohibited", 2 )
end