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000241_news@columbia.edu_Thu Jun 29 01:11:44 1995.msg
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From: jrd@cc.usu.edu (Joe Doupnik)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Configurable APC checking in next MSK release?
Message-Id: <1995Jun29.071144.54932@cc.usu.edu>
Date: 29 Jun 95 07:11:44 MDT
References: <jhurwitDAuowt.ICo@netcom.com>
Organization: Utah State University
Lines: 34
Apparently-To: kermit.misc@watsun.cc.columbia.edu
In article <jhurwitDAuowt.ICo@netcom.com>, jhurwit@netcom.com (Jeffrey Hurwit) writes:
> I've written a script to automate an exchange of files between my Unix
> account (running C-Kermit 5A(190)) and my PC (running Kermite 3.14 PL
> 6). It seemed best to run it on the Unix side (since it will be
> launched along with C-Kermit from a shell script), and control the PC
> Kermit with APC commands. To make the script work, I also needed to
> write a small macro for the PC side (to be launched with an APC
> command) that would check for a file, and tell the C-Kermit script
> whether it exists or not. This would not work until I set APC
> unchecked on the PC Kermit, because apparently the output command is
> not considered safe to use in a script or macro that is invoked with an
> APC command. I don't really like running Kermit on my PC with APC
> unchecked, but I don't know of any other way this little macro can tell
> the C-Kermit script whether or not the file exists without use of
> output commands.
>
> For the next release of MS-Kermit, would it be feasible to make it
> possible for the user to define a list of safe (or unsafe) commands for
> APC checking, perhaps to work in a way similar to setting control
> character prefixing?
>
> Thanks in advance for your consideration,
>
> Jeff
-------------
The reason OUTPUT is on the dangerous list is this. Something
on the host sends APC OUTPUT \26DEL *.* ST to your desktop machine. That's
includes a form of nasty mail trouble (^Z to suspend currrent process,
start removing files).
I'm not sure we want to itemize commands which are dangerous
because it is a bulky operation in the program and it adds to the doc
complexity (must now explain how each candidate can be abused remotely
etc).
Joe D.