From owner-freebsd-questions Wed Apr 24 17:58:54 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id RAA21281 for questions-outgoing; Wed, 24 Apr 1996 17:58:54 -0700 (PDT) Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.211]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id RAA21270 for ; Wed, 24 Apr 1996 17:58:51 -0700 (PDT) Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id RAA23565; Wed, 24 Apr 1996 17:54:21 -0700 From: Terry Lambert Message-Id: <199604250054.RAA23565@phaeton.artisoft.com> Subject: Re: Unix for 286 To: jimd@mistery.mcafee.com (Jim Dennis) Date: Wed, 24 Apr 1996 17:54:21 -0700 (MST) Cc: sebi@sorostm.ro, questions@FreeBSD.org, norbi@ltmpt.sorostm.ro In-Reply-To: <199604242148.OAA03126@mistery.mcafee.com> from "Jim Dennis" at Apr 24, 96 02:48:55 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk > Xenix, Coherent, Minix. > > So far as I know none of these support TCP/IP. Mark Williams > corporation (publishers of Coherent) is defunct (last I heard). > I don't know if Xenix is still available (but it was always pretty > bad) so that leaves Minix. Steph @ SCO ported the Lachman stuff under License to Xenix. Most of the drivers didn't support "select" entry points, so it's not as useful as it could have been otherwise, but much software will run, if it doesn't need to, for instance, select on a tty. You can write a select substitute using small reader processes and token prefixing for a pipe. It's pretty trivial, actually. Then you read tokens from the pipe (pipe writes are atomic, so if you preassmeble the token buffer, there is no possibility of desynchronization). So basically, TCP/IP was sold for Xenix for a long time. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.