[TUHS] Copyright on 4.2BSD?

[arnold at skeeve.com]

Hi All.

I'm working on revising my book on basic *nix programming, and for
the new chapter on sockets, I want to include some code from 4.2 BSD.

Is there a copyright file somewhere for that code?  I'm sure it's
copyright the Regents of the University of California, but I'd like
to include the text of the copyright in the book, so that everything's
clear.

Thanks!

Arnold