become ippp (ISDN ppp) and irip (ISDN raw IP). The character device now
are called: /dev/isdn (isdnd <-> kernel communication), /dev/isdnctl (dialing
and other control), /dev/isdntrc* (tracing), /dev/isdnbchan* (raw B channel
access, i.e. for user land PPP) and /dev/isdntel* (telephone devices, i.e.
for answering machines).
* use "ln -fs foo bar" instead of "rm -f bar; ln -s foo bar"
* remove unnecessary chown root or chgrp wheel directives; older code here
didn't bother doing this, so why be inconsistent
* when making directories, don't use -p and don't redirect stdout to /dev/null
* clean up whitespace
* wrap the main parser code in a function makedev(), and call makedev
instead of "sh $0". (this is a bit faster)
* don't barf when we have fdesc mounted; just skip the devices fdesc provides
(these files should really be automagically generated...)
"pty0 pty1 pty2 pty3" before, for a total of 64 device nodes, we now want
just "pty0" for a total of 62 -- the original commit had "pty0 pty1" for a
total of 124, which ate too many inodes and made "ls /dev" a bit messy.
Changes taken from the i386 MAKEDEV. Note that the unusual use of 'dd'
to index an array was chosen because 'dd' is on all ports' install media.
This form of this change comes from Andrew Brown; the original idea to
bump the number of ptys this way comes from Brian Marcotte at Panix.
