How to only checkout files (not being able to commit)?

[Tommy Svensson]

Hi all,

I have a CVS folder which I don't want to be checkoutable (this has been
achieved simply by chmod the appropriate rights). However, it has a
subfolder which I do want people to be able to checkout/update from BUT not
being able to commit to. Is this possible to do?

I've tried using LockDir in CVSROOT but to no avail. I would like to be able
to set permission per-user and per-file.

Thx in advance,

/Tommy