cgd writes:
> strtok?  strtok didn't show up (in libc) until '85.  the "treat an
> empty string as ." convention in the pathname resolution code dates to
> before 1980.
> 
> It's likely that it was there from much earlier than that (somebody
> with copy of the Lions book?  i can't find mine right now 8-).

Just tell me where to look and I'll check in this dog-eared pile of papers
with some guy named Lions' name on it that I, uh, Don't Have  :-)

	- Greg

P.S. I heard that DMR is working on getting an official release for the Lions
     book.  20th anniversary edition I guess  :-)