1 Dec
2016
1 Dec
'16
11:40 a.m.
Hi Diomidis,
Thanks for that link. This is exactly what I'm trying to ascertain, and I'm
finding conflicting evidence.
- The socket API was in a state of flux between October '81 and March '82 (when
4.1a was supposedly cut). By March '82 it was mostly there, but not until later in
the year did it fully stabilize.
- The BBN stack did not use the sockets API as late as January '82
- What I currently fathom from the SCCS files is that the socket API implementation was
hard coded to use the nascent Berkeley stack.
- But the BBN code was likely in the 4.x BSD source tree, outside of SCCS (Berkeley
started out with the BBN code, but it morphed quite quickly and drastically)
- In 1985 the BBN code finally enters SCCS (marked 'deprecated'); this code was
integrated with the sockets API, and much developed from its 1982 form
Either the below link is correct (and I think I may have contributed to its view in a
private mail to Kirk), or there were two different distributions (4.1a BSD with Berkeley
network code and 4BSD with BBN network code). The two may have merged into one in
peoples' memories: 35 years is a long time. Finding the actual kernel source for the
4.1a distribution could provide clarity on this point.
Perhaps Bill Joy could shed some light on the issue, but I don't have contact
details. Having actual source removes all doubt.
Paul
On 1 Dec 2016, at 10:51 , Diomidis Spinellis wrote:
The best description I could find is the following:
http://minnie.tuhs.org/pipermail/tuhs/2016-September/007417.html
The 4.1a distribution had the initial socket
interface with a
prerelease of the BBN TCP/IP under it. There was wide distribution
of 4.1a. The 4.1b distribution had the fast filesystem added and
a more mature socket interface (notably the listen/accept model
added by Sam Leffler).
Diomidis
On 01/12/2016 10:30, Paul Ruizendaal wrote:
Hi,
I'm trying to find out exactly what was in the 4.1a BSD distribution, as far as the
kernel is concerned. The image in the CSRG archive comes from a tape that had a hard read
error and does not include any kernel sources. Some of the kernel files were already
covered by SCCS around that time, but not everything. My main focus is to understand
tcp/ip networking in 4.1a and whether the kernel could be built with either the Berkeley
or the BBN network stack.
Does anybody know where I could find a full set of kernel sources for the 4.1a BSD
kernel?
Many thanks in advance!
Paul