Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!samsung!zaphod.mps.ohio-state.edu!rpi!image.soe.clarkson.edu!sunybcs!dsinc!cdin-1!ki4pv!macs!mdg
From: mdg@macs.UUCP (Mark Griffith)
Newsgroups: comp.mail.uucp
Subject: Re^2: Problem with uucico
Message-ID: <21187683@macs.UUCP>
Date: 12 Apr 90 16:11:31 GMT
References: <1102@bullwinkle.UUCP> <7767@life.ai.mit.edu>
Organization: Stetson University, DeLand FL
Lines: 30


I appear to have the same or similar problem with an ULTRIX system
running on a DEC MicroVAX II.  I can send to this site without any
problems, but cannot receive anything.  From capturing all the data
being sent, apparently this is what is happening:

The header for each packet consists of the following:

<DLE><packet_type><CRC><CRC><control_byte><XOR value of previous bytes>

When receiving data from the host, it seems to drop the XOR byte
and replace it with the first byte of the data.  Even if I modify the
code to receive a packet to allow for this, the CRC value being sent is
still different than what my machine calculates.

It also seems that I have this same problem with a Sun 2 workstation
that I sometimes connect to.

Trying to find out information about this is almost impossible to do.
Calling every source I know of, including AT&T nets nothing.  AT&T
simply
states that the protocol is proprietary.

Any help in this matter would be creatly appreciated.  I am writing a
UUCP package for a different OS and this stonewall is in the way.

BTW:  I can send and receive from a UNIX Sys V Rel 2 machine without
error.

/\/\ark