I've
personally thought that Sun should release the source trees of its old
BSD-based SunOS with the idea of getting back onside with all the Linux and
Unix people it pissed off by its "buying" a "Unix" license from SCO,
the
Societe Commercial du On-Dit, the Commercial Society of Rumourmongers.
Don't hold your breath. Even SunOS 4.1.x had large chunks of System V Release 3
code in it: all the STREAMS stuff and RFS worked in that environment (not that
anyone ever used it). Also all of /usr/5bin, /usr/5lib etc.
I removed all that stuff and booted up and ran on a complete free version of
SunOS long ago. Read about it here: