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From: mitch@hq.af.mil (Mitch Wright)
Newsgroups: comp.unix.questions
Subject: Re: Preventing Idle in telnet
Message-ID: <MITCH.90Sep24142534@hq.af.mil>
Date: 24 Sep 90 18:25:34 GMT
References: <85234@aerospace.AERO.ORG> <2399.26fde5fb@miavx1.acs.muohio.edu>
Sender: mitch@hq.af.mil
Organization: Air Force HQ, The Pentagon
Lines: 38
In-reply-to: pemurray@miavx1.acs.muohio.edu's message of 24 Sep 90 15:54:50 GMT


/*
 * In article <85234@aerospace.AERO.ORG>, 
 * huebner@aerospace.aero.org (Robert E. Huebner) writes:
 *
 */

Robert> Looking for advice on how to solve the following problem in UNIX:
Robert> I need to find a way to alter telnet so that it will automatically
Robert> send characters periodically if the user is idle.  The specific case
Robert> [ ... ]

/* 
 * On 24 Sep 90 15:54:50 GMT, 
 * in article <2399.26fde5fb@miavx1.acs.muohio.edu> 
 * pemurray@miavx1.acs.muohio.edu (Peter Murray) writes:
 *
 */

Peter> What you can do is write a small C program to send a space and a
Peter> backspace every 25 minutes.  Something like:

Peter> main()
Peter> [...]
Peter> 		printf("\033[OC\033[OD");
Peter> [...]

This shouldn't really do the job.  When you printf to your screen, it
does not simulate the user actually hitting keys; thus, the idle time will
continue to accumulate.  There is a request to ioctl that you can make to
simulate a key being typed -- TIOCSTI.  It works for me...

   ..mitch

   mitch@hq.af.mil (Mitch Wright) | The Pentagon, 1B1046 | (202) 695-0262

   The two most common things in the universe are hydrogen and stupidity,
   but not necessarily in that order.