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From: resnick@cogsci.uiuc.edu (Pete Resnick)
Newsgroups: comp.sys.mac.comm
Subject: Re: MacTCP sample code + any error handling
Message-ID: <1991May10.120723.27241@ux1.cso.uiuc.edu>
Date: 10 May 91 12:07:23 GMT
References: <7527@munnari.oz.au> <2582@plx.UUCP>
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Organization: University of Illinois at Urbana
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sailu@plxsun.uucp (Sailu Reddy) writes:

>Has any one ever obtained NCSA TELNET source code? I am very interested to find
>out how the network error handling was done. I seem to have a frequent hangups
>in my applications whenever the host died or some form of network error occured

It sounds to me like you don't have your asynchronous notification routine
declared properly. When a connection gets broken due to a host going down or
other error, this routine is going to get called. Make sure it is declared
properly (as a pascal routine), will be available during interrupt, and
does not use globals unless setup properly. Not having these correct would
almost certainly cause your crash.

I would recommend *against* looking at the NCSA Telnet source. It is not
by any means a good or clear piece of code. Find something else if you
can.

pr
--
Pete Resnick             (...so what is a mojo, and why would one be rising?)
Graduate assistant - Philosophy Department, Gregory Hall, UIUC
System manager - Cognitive Science Group, Beckman Institute, UIUC
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