From: schily@schily.net (Joerg Schilling)
Subject: [TUHS] Help request: uucp, mail on 4.2BSD
Date: Wed, 08 Mar 2017 23:03:36 +0100 [thread overview]
Message-ID: <58c07fb8.F7Cd/seulkX9W1t/%schily@schily.net> (raw)
In-Reply-To: <20170307070941.GA2012@minnie.tuhs.org>
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Warren Toomey <wkt at tuhs.org> wrote:
> Hi all, as part of my effort to recreate part of a simulated Usenet,
> I'm trying to bring up uucp, then mail, then C-news on 4.2BSD boxes.
> I've got a hardwired serial port between them, and I can see a basic
In case it is if interest...
I used modems between 1986 and january 1993 (when I started to use a self
built ISDN adaptor that was connected as a piggy back to the Sun-3/50 or
Sun-3/60 EPROM socket).
During that "modem" time, I started with a 2400 baud modem and soon upgraded
to a US-Robotics modem. It turned out that UUCP had several issues and was not
very effective with high speed modems.
For this reason, I started with the BSD-4.2 UUCP sources and created a new
protocol that I called "s" protocol. This protocol was based on the "g"
protocol but used larger packet sizes. Here is my comment header for "sio.c":
/*
* High speed modem protocol with flow control.
*
* The s protocol was designed to be used with high speed modems which
* have no built in protocol spoofing for the g protocol.
*
* The s protocol is almost the g protocol with a greater packetsize
* and some mapping, to allow software flow control to work.
* If the operating system is able to do hardware/software flow control
* which is not 8-bit transparent, the s protocol will use the
* 8-bit data path. If the data path is only 7-bit wide on one or both
* directions the s protocol will use additional mapping in the
* appropriate direction to ensure an overall 8-bit wide datapath.
*
* The s protocol relies on a packet driver with some minor changes.
*
* The modifications on the packet driver are:
* - some minor bug-fixes, so packet sizes > 128 bytes will work.
* - allow to specify transport routines different from read/write
* to enable the mapping of flow control characters.
*
* These changes will not stop the g protocol to work.
*
* Author:
* J. Schilling, Berlin 1990
*
* N.B.: The main code was stolen from the g-protocol.
*/
Jörg
--
EMail:joerg at schily.net (home) Jörg Schilling D-13353 Berlin
joerg.schilling at fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/
next prev parent reply other threads:[~2017-03-08 22:03 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-07 7:09 Warren Toomey
2017-03-07 7:11 ` Cory Smelosky
2017-03-07 7:54 ` Lars Brinkhoff
2017-03-07 8:27 ` Warren Toomey
2017-03-07 9:09 ` Warren Toomey
2017-03-07 15:23 ` Dave Horsfall
2017-03-07 20:43 ` Warren Toomey
2017-03-07 22:38 ` Dave Horsfall
2017-03-07 22:45 ` John Floren
2017-03-07 22:50 ` Jacob Goense
2017-03-07 22:58 ` Warren Toomey
2017-03-07 23:46 ` Cory Smelosky
2017-03-07 23:54 ` William Pechter
2017-03-07 23:55 ` Cory Smelosky
2017-03-08 0:03 ` John Floren
2017-03-08 0:05 ` Cory Smelosky
2017-03-08 4:05 ` Dave Horsfall
2017-03-08 10:21 ` arnold
2017-03-07 23:14 ` Arthur Krewat
2017-03-07 23:19 ` Dave Horsfall
2017-03-07 23:27 ` Arthur Krewat
2017-03-08 21:20 ` Josh Good
2017-03-08 21:42 ` Corey Lindsly
2017-03-08 22:59 ` Arthur Krewat
2017-03-09 20:26 ` Josh Good
[not found] ` <86varkclj1.fsf@molnjunk.nocrew.org>
2017-03-08 7:17 ` Warren Toomey
2017-03-08 9:20 ` [TUHS] UUCP: working systems, come and get them Warren Toomey
2017-03-08 22:16 ` Warren Toomey
2017-03-08 22:31 ` Dave Horsfall
2017-03-11 0:14 ` Mary Ann Horton
2017-03-08 22:33 ` Kurt H Maier
2017-03-09 6:36 ` arnold
2017-03-09 13:02 ` Lars Brinkhoff
[not found] ` <86fuimbobi.fsf@molnjunk.nocrew.org>
2017-03-09 22:28 ` Warren Toomey
2017-03-10 7:11 ` Lars Brinkhoff
[not found] ` <CAL4LZyjBG_TL06CAhoNY-BW3pCR6qJHVVMq2oUnfVqOHsAf9kA@mail.gmail.com>
2017-03-09 23:19 ` Warren Toomey
2017-03-09 23:23 ` John Floren
2017-03-10 1:57 ` Cory Smelosky
[not found] ` <20170310020203.GA14221@minnie.tuhs.org>
2017-03-10 2:03 ` Cory Smelosky
2017-03-10 1:49 ` John Floren
2017-03-10 2:06 ` Warren Toomey
2017-03-10 2:09 ` Cory Smelosky
2017-03-10 12:25 ` Jason Stevens
2017-03-10 17:50 ` John Floren
2017-03-10 21:38 ` Warren Toomey
2017-03-08 22:03 ` Joerg Schilling [this message]
2017-03-08 23:07 ` [TUHS] Help request: uucp, mail on 4.2BSD Arthur Krewat
2017-03-08 23:18 ` Cory Smelosky
2017-03-08 23:39 ` Arthur Krewat
2017-03-09 0:22 ` Cory Smelosky
2017-03-09 14:51 ` Arthur Krewat
2017-03-09 17:53 ` SPC
2017-03-11 5:29 ` jsteve
2017-03-09 1:59 ` Dave Horsfall
2017-03-09 9:30 ` Joerg Schilling
2017-03-07 17:17 Clem Cole
2017-03-07 17:43 ` Jaap Akkerhuis
2017-03-07 21:14 ` SPC
2017-03-08 1:51 ` John Labovitz
2017-03-10 0:31 ` Steve Simon
2017-03-10 2:04 ` Lyndon Nerenberg
2017-03-10 2:09 ` Lyndon Nerenberg
2017-03-10 2:51 ` Dave Horsfall
2017-03-10 3:45 ` Dan Cross
2017-03-10 4:40 ` Lyndon Nerenberg
2017-03-10 9:57 ` Joerg Schilling
2017-03-10 6:34 ` Jaap Akkerhuis
2017-03-10 7:22 ` Erik E. Fair
2017-03-10 7:27 ` Lars Brinkhoff
2017-03-10 15:00 ` Dave Horsfall
2017-03-07 17:45 ` Arthur Krewat
2017-03-07 18:30 ` Jacob Goense
2017-03-07 18:30 ` Dan Cross
2017-03-07 19:00 ` Erik E. Fair
2017-03-07 22:04 ` Dave Horsfall
2017-03-10 6:10 ` Jim Carpenter
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