Control-T (was Re: Finding Passwords)

[Rob McMahon]

In article <50178 at cmcl2.NYU.EDU> garif at cmcl2.NYU.EDU (Caligari's Coffin) writes:
>avg at hq.demos.su (Vadim G. Antonov) writes:
>>(Curiousily, but I've inserted ^T in v6 tty driver, but later I removed it -
>>ps produces more readable output :-)
>
>I seem to recall that Ultrix allows a control-t trapped to some kind of
>process status output.

I once did this to a BSD 4.2 system: added a `stty enq ^T' that would cause a
SIGENQ to be sent to the appropriate process group.  The signal was ignored by
default, and I modified the compiler drivers passes to report pass, filename,
linenumber, and number of errors.  (I'd just come from a Burroughs B6800 where
you could do `?CS' to get the same information, and it seemed like a good idea
at the time.)  It was actually quite useful, but then compiles took longer in
those days.  The only problem was that not enough programs supported it.  I
was going to make the kernel print out some cheap stuff from the proc
structure for each process, but never did.

Rob, in reminisce mode.
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Rob McMahon, Computing Services, Warwick University, Coventry CV4 7AL, England