Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!pasteur!ucbvax!decwrl!sun!pitstop!sundc!seismo!uunet!mcvax!cernvax!ethz!ethz-inf!wyle
From: wyle@inf.ethz.ch (Mitchell Wyle)
Newsgroups: comp.unix.questions
Subject: Re: modem login and call back on the same line
Keywords: callback, ct, call terminal, software-callback
Message-ID: <69@inf.ethz.ch>
Date: 6 Mar 89 09:15:00 GMT
References: <1770@vexpert.uucp>
Reply-To: wyle@inf.ethz.ch (Mitchell Wyle)
Organization: Departement fuer Informatik, ETH Zuerich
Lines: 21

In article <1770@vexpert.uucp> nejdl@vexpert.uucp (Wolfgang Nejdl) writes:
>Now we want to add an automatic callback
>facility, which would allow us to call the modem, hang up, and be called back
>some minutes later.
>Does anybody have such a configuration running? (We could also use SUN386i's,
>if this would make any difference.

I wrote a callback script, hacked on it for a week, got it working.  It
is the dirtiest, ugliest set-uid shell script ever written.  It has an
ed script to edit /etc/ttys, does a kill -HUP 1, echos junk at the
modem port, and basically violates all security guidelines, rules, and
regulations.  It works.

I asked usenet twice for a PD ct(1) program, got no answers.  If someone
out there has since written one, it should *definitely* be posted to
comp.sources.misc.  My script gets the job done here, but I won't post
it to the net.
-- 
-Mitchell F. Wyle                         wyle@ethz.uucp
Institut fuer Informationssysteme         wyle@inf.ethz.ch
ETH Zentrum / 8092 Zurich, Switzerland    +41 1 256 5237