[LUA]Make R.O.F

Hello all, I was wondering if there was any way to make a ROF (Read Only File) in a program for instance here is my code:

Spoiler

term.clear()
term.setCursorPos(1,1)
print("What would you like your display name to be?")
local dispName = read()
print("Okay, "..dispName.." what is your real name?")
local realName = read()
if not fs.isDir("saves") then
fs.makeDir("saves")
end
local file = fs.open("saves/"..dispName,"a")
file.writeLine(realName)
file.close()

Now let's just say that after 'fs.close()' I want to make it a read-only file, how would I do that?

I don't think you can do that through a Lua script in CC. You would have to set it on the file on your real computer/the server you play on.

D:<

In fact it is kind of possible. Save this as startup:

deleteOrig=fs.delete
readOnly = {"foo/bar",
"bar/foo"}
function fs.delete(plik)
  for i=1,#readOnly do
    if plik==readOnly[i] then
	  error(plik.." is read only!")
    end
  end
  deleteOrig(plik)
end

This way you can't remove files listed in readOnly table. Of course you should add your startup file there :P/>/>

Jahmaican, on 22 September 2012 - 06:36 PM said:

In fact it is kind of possible. Save this as startup:

deleteOrig=fs.delete
readOnly = {"foo/bar",
"bar/foo"}
function fs.delete(plik)
  for i=1,#readOnly do
	if plik==readOnly[i] then
	  error(plik.." is read only!")
	end
  end
  deleteOrig(plik)
end

This way you can't remove files listed in readOnly table. Of course you should add your startup file there ;)/>/>

You would also need to change the fs.open function so it can't be edited. And some kind of path resolving, so people can't do something like:

fs.delete("/./foo/bar")

And then is the problem of disk startups, but I'll leave that to you :P/>/>

Yeh, basically, you can't really make anything read only… but you can try.

Yeah, pretty hard to make a robust read-only system without modifying the BIOS and api to prevent insecure startups from floppy.

The only way to do it is to write the program outside of Minecraft and save it in the rom folder. Then all computers will have access to it, but wont be able to write to it or delete it.