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From: George Michaelson <ggm@algebras.org>
To: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] sockets (was Re: First appearance of named pipes)
Date: Thu, 26 Mar 2020 13:43:01 +1000
Message-ID: <CAKr6gn26g1Xy_emEo6isG8JEwRHTz6cUp92R7p-EVsUF8cRXnA@mail.gmail.com> (raw)
In-Reply-To: <CAKzdPgxsOYHH7ogUMytqUAEfYdVpxFMMuFbfpy5GeN=q-iR8yA@mail.gmail.com>

Options negotiation and the URG/PUSH always freaked me out. PAD (the
X.25 equivalent) was a bugger to work with. From memory, the yorkbox
was a forked pair of processes one to read, one to write. it didn't
work very well to be honest. I tended to convert to half-duplex mode
and construct valid lines of input before sending them (which is not
very editor friendly unelss you like Teco, which I didn't since it was
complicated. I stuck to SOS and ed)

Telnet is pretty much just "read and write for networks" except for
the options. Back in the days of the BBN Butterfly, the gethostaddr()
table for de interwebz was a linear list, and UCL was at the back of
the hosts.txt sort and the time it took the daemon to work out who we
were, for a login: prompt, was 1-2 sec close to the 30 second
drop-link-he's-dead-jim timer in getty or whatever it was then. Sad. I
think we made a lot of drama about read and write for networks.
Really, asynchronous communicating processes is a lot of fun. I went
to Milners lectures on the calculus of communicating systems, it was
also too hard, I lost it.

That was also when the real underlying routing (pre BGP) was a
push-down list, which dropped our routes because we were the boring
british side of things and LRU cache said no.  Rebooting the right
fuzzball or BBN box generall brought it back.

X25 was a good fit for PAD. small packets. Enter the ATM cell size
discussion <----here.

On Thu, Mar 26, 2020 at 1:09 PM Rob Pike <robpike@gmail.com> wrote:
>
> I can't find it now, but there's a very short rc script that does a
> modestly realistic telnet client in Plan 9.
>
> But you know, that's not Unix.
>
> -rob
>
> On Thu, Mar 26, 2020 at 1:39 PM Dave Horsfall <dave@horsfall.org> wrote:
> >
> > On Wed, 25 Mar 2020, Grant Taylor via TUHS wrote:
> >
> > > · netcat's STDOUT to grep's STDIN
> > > · grep's STDOUT to netcat's STDIN
> >
> > Are you trying to set up a loop of processes or something?  I'm not sure
> > if that is even possible, although you can't rule out creative uses of
> > dup2() etc...
> >
> > -- Dave

  reply index

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-06 22:44 [TUHS] First appearance of named pipes Noel Chiappa
2020-03-07 12:17 ` Paul Ruizendaal
2020-03-07 13:29   ` Clem Cole
2020-03-07 16:39   ` Derek Fawcus
2020-03-08  2:36     ` Rob Pike
2020-03-08  2:47       ` Larry McVoy
2020-03-08 13:07         ` Ralph Corderoy
2020-03-08 13:25           ` arnold
2020-03-08  3:06       ` Dave Horsfall
2020-03-08  7:16       ` arnold
2020-03-08 15:13       ` [TUHS] sockets (was Re: First appearance of named pipes) Derek Fawcus
2020-03-09 23:22         ` Grant Taylor via TUHS
2020-03-09 23:44           ` Larry McVoy
2020-03-23  8:49           ` Peter Pentchev
2020-03-24  9:47             ` Derek Fawcus
2020-03-25 23:25               ` Grant Taylor via TUHS
2020-03-25 23:47                 ` Richard Salz
2020-03-26  0:11                   ` Grant Taylor via TUHS
2020-03-26  0:18                     ` Richard Salz
2020-03-26  1:08                       ` Grant Taylor via TUHS
2020-03-26  2:38                         ` Dave Horsfall
2020-03-26  3:08                           ` Rob Pike
2020-03-26  3:43                             ` George Michaelson [this message]
2020-03-26  4:11                           ` Grant Taylor via TUHS
2020-03-28 11:12                           ` Peter Pentchev
2020-03-28 11:14                             ` Peter Pentchev
2020-03-28 16:03                               ` Steffen Nurpmeso
2020-03-26  1:20                       ` Tony Finch
2020-03-27 10:51                   ` Derek Fawcus
2020-03-09 23:22 ` [TUHS] First appearance of named pipes Grant Taylor via TUHS
2020-03-10  7:29   ` arnold
2020-03-11  2:47     ` Grant Taylor via TUHS
2020-03-11  7:02       ` arnold
2020-03-10 13:49   ` Chet Ramey
2020-03-10 20:26     ` Dave Horsfall
2020-03-10 20:37       ` Chet Ramey
2020-03-11  2:51       ` Grant Taylor via TUHS
2020-03-08 23:09 [TUHS] sockets (was Re: First appearance of named pipes) Norman Wilson
2020-03-09 17:09 ` Tony Finch

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