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Date: Wed, 17 Apr 1996 16:04:07 -0700 (PDT)
From: Richard Chang <richardc@CSUA.Berkeley.EDU>
To: Terry Lambert <terry@lambert.org>
cc: terry@lambert.org, questions@FreeBSD.ORG
Subject: Re: Keyboard bindings
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On Wed, 17 Apr 1996, Terry Lambert wrote:

> > > > 	I had a question for the longest time.  I notice on the console, 
> > > > CTRL-O would work for things you are running locally but not on 
> > > > telnet/rlogin connections but it does work when you connect from anywhere 
> > > > else besides a FreeBSD machine, any ideas?  Thanks!
> > > 
> > > Consider 4.3 vs. 4.2 OOB data propagation and supported signals
> > > for the rlogin and telnet protocols in the RFC's.
> > 
> > 	Hmmm, now why did every other CTRL combination work except for CTRL-O?
> > Isn't pine/pico developed on Ultrix which is BSD 4.3 based but they still 
> > supported CTRL-O?
> 
> Discard is a cannonical processing capability, not a transported
> (ie: capable of being sent out of band) signal.
> 
> Only transported signals work like you want ^O to work... you need
> to get a faster link or reduce time between packet reception
> and output buffer flushing to make it work.  It's not done by
> default because (a) it would slow down average throughput, and
> (b) no one but VMS/.TOPS-20 hold-overs use ^O.  ;-).
> 
> 
> Alternately, you could reabstract the ^O implementation to make it
> into a signal... lotta work, that.

	Hmmm, okay... Isn't a 10GBps link fast enough? ;-)  Someone on 
the list just mentioned to do stty discard undef and that seems to work 
but the stty manpage doesn't mention anything at what discard is.

Richard