Hi Andrey - thanks for your reply!

On 25/07/12 14:47, andrey mirtchovski wrote:
> I'm not a lawyer but I play one in comedy clubs. The first
> implementation of 9p came about long before Plan 9 had a free (as in
> rms) license. Nobody got sued, nobody died, although a few bystanders
> were maimed.
Interesting. It's good to find out a bit of the history behind 9p.
>
> My advice as your lawyer [in comedy] would be to go nuts and do
> whatever you want. The documentation[1] is a good place to start if
> you don't want to look at any source (no license required to see
> that!), and if you want to cover all corner cases, a running Plan 9
> kernel is a good client/server to test against.
>
> ----
> 1: http://plan9.bell-labs.com/sys/man/5/INDEX.html
Thanks for that!  I'll check that page out too.
Btw - I clicked on the "copyright" link at the bottom, but the link is
dead - nothing but a 404 page error.

In looking at Tim Newsham's P9.py, he has a comment in the code - "9P
protocol implementation as documented in plan9 intro(5) and <fcall.h>."
( I would likely be even more cautious and avoid looking at any header
files if possible. )
Thanks again, Andrey - you've been very helpful!
- Andy