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Article View: comp.sys.atari.st
Article #28416

Re: problem with zm/rz/sz program in Unix 4.3

#28416
From: Marion Hakanson
Date: Mon, 28 Sep 1987 20:36
32 lines
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In article <612@sbcs.UUCP> lean@sbcs.UUCP (Lean L. Loh) writes:
>
> I've compiled the zm/rz/sz (Xmodem,Ymodem,Zmodem) program on our Unix 4.3
>running on a VAX780, and have not been able to get it to work. After
>initiating a rz filename, I issued a send file from my terminal program,
>but it always timeout with a message <transfer canelled by receiver>.

You didn't say what type of connection you were attempting this
across, but I have seen the identical behavior on various 4.[23]bsd
machines, and have traced the problem here to running the zmodem
protocol over telnet connections with bugs in binary modes.  The
<transfer cancelled by receiver> invariably means that there was a bad
checksum which caused the packet(s) to be retransmitted the maximum
number of times without success.  The same transfer works fine over a
direct dialin line.

What's interesting to me is the fact that I can send files from the
Unix machine to my ST, but not vice-versa.  The network connection
is capable of transferring 8-bit data and control characters in one
direction, but not the other.  If I use "rlogin <host> -8 -L" to make
the same connection, then the transfer will work in either direction.

I'm pretty certain the fault is with a Bridge CS/100 TCP connection
to our 4.[23] machines.  Connecting from one Bridge to another one
works fine.

Anyway, this may not be the cause of your problem, but likely it
is a similar problem (corrupted data and/or checksum).  Good luck.

Marion Hakanson         Domain: hakanson@cs.orst.edu
                        CSNET : hakanson%cs.orst.edu@relay.cs.net
                        UUCP  : {hp-pcd,tektronix}!orstcs!hakanson
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!cmcl2!rutgers!orstcs!mist!hakanson
References: <612@sbcs.UUCP>

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From: hakanson@mist.cs.orst.edu (Marion Hakanson)
Newsgroups: comp.sys.atari.st
Subject: Re: problem with zm/rz/sz program in Unix 4.3
Message-ID: <170@orstcs.CS.ORST.EDU>
Date: Mon, 28-Sep-87 16:36:04 EDT
Article-I.D.: orstcs.170
Posted: Mon Sep 28 16:36:04 1987
Date-Received: Tue, 29-Sep-87 06:48:36 EDT
References: <612@sbcs.UUCP>
Sender: netnews@orstcs.CS.ORST.EDU
Reply-To: hakanson@mist.UUCP (Marion Hakanson)
Distribution: comp
Organization: Oregon State Universtiy - CS - Corvallis, Oregon
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