Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!hsdndev!cmcl2!kramden.acf.nyu.edu!brnstnd
From: brnstnd@kramden.acf.nyu.edu (Dan Bernstein)
Newsgroups: comp.unix.wizards
Subject: Re: BSD tty security, part 3: How to Fix It
Message-ID: <19427:May2121:58:5991@kramden.acf.nyu.edu>
Date: 21 May 91 21:58:59 GMT
References: <19313@rpp386.cactus.org> <3690:May1921:22:5191@kramden.acf.nyu.edu> <16215@smoke.brl.mil>
Organization: IR
Lines: 11

In article <16215@smoke.brl.mil> gwyn@smoke.brl.mil (Doug Gwyn) writes:
> Why an SAK like ^K?  Why not just have loss
> of DTR be the attention signal?

That's fine with me. All I care about is that there does exist some SAK
which cannot be turned off or diverted by any user process. I picked ^K
for an example because John doesn't think Break is portable enough.
(Note that in the pictures getty shields the line from speed changes;
this isn't necessary for an out-of-band sequence.)

---Dan