Path: utzoo!attcan!uunet!samsung!usc!apple!agate!shelby!neon!Gang-of-Four!andy
From: andy@Gang-of-Four.Stanford.EDU (Andy Freeman)
Newsgroups: comp.lang.lisp
Subject: Re: How do I get and use input from a telnet session in Lisp?
Message-ID: <1990May29.003640.7040@Neon.Stanford.EDU>
Date: 29 May 90 00:36:40 GMT
References: <16796@phoenix.Princeton.EDU>
Sender: news@Neon.Stanford.EDU (USENET News System)
Organization: Computer Science Department, Stanford University
Lines: 22

In article <16796@phoenix.Princeton.EDU> bskendig@phoenix.Princeton.EDU (Brian Kendig) writes:
>Here's an example.  Say that I first need to connect to port 4321 of
>the machine with address 128.129.130.131.  Ordinarily I'd issue a
>telnet command from the command line, but I'd like the same thing done
>entirely by my program.

A number of lisp implementations, such as Lucid's Common Lisp, provide
facilities for running other processes and communicating with them
as if they were sequential files.

One useful process to run is a telnet process.  Depending on the
program at the other end, strings or s-expressions may be the
appropriate language.  (Personally, I've always had a lisp process on
the other end, so I passed s-expressions back and forth and so that I
could parse them with read.)  It isn't too difficult to figure out
where and when to flush the relevant buffers.

-andy
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