[TUHS] 4.3BSD help: getty ignoring modem status

Warren Toomey wkt at tuhs.org
Sun Mar 19 17:46:02 AEST 2017

On Sun, Mar 19, 2017 at 02:37:12AM -0400, Noel Chiappa wrote:
> Looking at the 4.3Tahoe (which particular 4.3 version is in question here,
> anyway?) DZ driver:
>   http://minnie.tuhs.org/cgi-bin/utree.pl?file=4.3BSD-Tahoe/usr/src/sys/vaxuba/dz.c
> I find it hard (without further digging) to figure out how it gets from where
> it should discover carrier has gone away (in dzrint(), from dztimer()) to the
> rest of the system; they have added some linesw[] thing I don't know about.

Thanks for digging Noel. Strangely, I've just installed a vanilla 4.2BSD
and it does the same thing.

The 4.3BSD dz(4) manual does say:

     /dev/ttyd[0-9a-f]        dialups

but /dev/MAKEDEV doesn't seem to have a way to make /dev/ttyd*

Cheers, Warren
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