From:	mert0407 AT sable DOT ox DOT ac DOT uk (George Foot)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: TCP/IP
Date:	10 Oct 1997 13:22:47 GMT
Organization:	Oxford University, England
Lines:	31
Message-ID:	<61la77$d1b$1@news.ox.ac.uk>
References:	<01BCD31E DOT 1B0010C0 AT h-d-06>
NNTP-Posting-Host:	sable.ox.ac.uk
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Paul Clancy (pclancy AT gnc DOT co DOT uk) wrote:
: Has anyone got any working code to do some TCP/IP functions from a DOS box
: using a Win95 DUN connection? 

Sure; what do you want? :) 

For starters, there's the little Web server Dan Hedlund provides with his
wsock library. This only demonstrates the server side of a TCP connection,
though. 

I have examples (for example, chat programs) using either UDP or TCP from
either Dan Hedlund's C++ library
(http://www.rangenet.com/markiv/wsock.html) or my C translation of that
library (let me know if you want it). 

If you don't know how to program with sockets yet, it would be wise to
read through some documentation of that first. I started writing a
tutorial for Dan's wsock library once (I kind of like writing tutorials, I
suppose...)  but it's incomplete. 

If anyone would like copies of these examples, please let me know. 

One notable thing they don't demonstrate is OOB messaging over TCP; this
is fairly trivial. You just put MSG_OOB in the flags field of send or
recv, and you'll send/recv from the OOB queue instead of the regular
queue. If you set the option to receive OOB messages inline, of course,
you'll receive them without specifying MSG_OOB anyway. 

-- 
George Foot <mert0407 AT sable DOT ox DOT ac DOT uk>
Merton College, Oxford

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