[Squeak-VMdev] Securing imageNamePutLength()

[Tim R. <ti...@su...>]

I'd like to improve the safety of the writing the image name; currently
the slang code for primitiveImageName merely assumes success in writing
absolutely anything you pass it. Since (so far as I can see) all
platforms have a practical maximum path length it seems like a good
thing to be able to return an indication as to whether the string was
truly acceptable - size, illegal chars, plausible path, whatever suits
the platform.

Right now all four main platforms do something different:-
Acorn returns flase if the string cannot be canonicalised as a filename
but returns default if ok!
Mac returns the lesser of allowable image name size and actual length
Unix returns the same
Windows returns 1.

Can we agree that returning something uniform (say 0) to indicate that
the prim should fail is a good idea? I'd like to make this a 3.8 thing
if possible.


tim
--
Tim Rowledge, ti...@su..., http://sumeru.stanford.edu/tim
Oxymorons: Legally drunk