NetBSD/etc/etc.cesfic/MAKEDEV

#!/bin/sh -

# $NetBSD: MAKEDEV,v 1.6 2003/04/27 13:15:32 ragge Exp $
#
###########################################################################
#
#   PLEASE RUN "cd ../share/man/man8 ; make makedevs"
#   AFTER CHANGING THIS FILE, AND COMMIT THE UPDATED MANPAGE!
#
###########################################################################
#
# Device "make" file.  Valid arguments:
#	all	makes all known devices, including local devices.
#		Tries to make the 'standard' number of each type.
#	init	A set of devices that is used for MFS /dev by init.
#		May be equal to "all".
#	std	standard devices
#
# Terminal ports:
#	tty*	serial ports
#
# Pseudo terminals:
#	pty*	set of 62 master and slave pseudo terminals
#
# Special purpose devices:
#	bpf*	packet filter
#	clockctl clock control for non root users
#	fd	file descriptors
#	lkm	loadable kernel modules interface
#	random	Random number generator, see rnd(4)
#	systrace syscall tracer
#	tun*	network tunnel driver
#

dialin=0
dialout=524288

PATH=/sbin:/usr/sbin:/bin:/usr/bin
umask 77

# Check if we have fdesc mounted
if [ -d fd ]; then
	case "`df fd`" in
	*fdesc*) nofdesc=false;;
	*) nofdesc=true;;
	esac
else
	nofdesc=true
fi

makedev()
{

for i
do

case $i in

init|all)
	makedev std
	makedev tty0 tty1 pty0
	makedev bpf0 bpf1 bpf2 bpf3 bpf4 bpf5 bpf6 bpf7
	makedev lkm random
	makedev clockctl
	makedev local
	;;

std)
	rm -f console drum mem kmem null zero klog
	mknod console		c 0 0
	mknod drum		c 3 0	; chmod 640 drum ; chgrp kmem drum
	mknod kmem		c 2 1	; chmod 640 kmem ; chgrp kmem kmem
	mknod mem		c 2 0	; chmod 640 mem	; chgrp kmem mem
	mknod null		c 2 2	; chmod 666 null
	mknod zero		c 2 12	; chmod 666 zero
	mknod klog		c 6 0	; chmod 600 klog
	mknod ksyms		c 25 0	; chmod 444 ksyms
	if $nofdesc; then
		rm -f tty stdin stdout stderr
		mknod tty	c 1 0	; chmod 666 tty
		mknod stdin	c 11 0	; chmod 666 stdin
		mknod stdout	c 11 1	; chmod 666 stdout
		mknod stderr	c 11 2	; chmod 666 stderr
	fi
	;;


bpf*|tun*)
	case $i in
	bpf*) name=bpf;	unit=${i#bpf};	chr=12;;
	tun*) name=tun;	unit=${i#tun};	chr=13;;
	esac
	rm -f $name$unit
	mknod $name$unit	c $chr $unit
	;;


pty*)
	class=${i#pty}
	name=`echo pqrstuvwxyzPQRST | dd bs=1 count=1 skip=$class 2>/dev/null`
	case $name in
	v)	echo "$0: $i: pty unit conflicts with console ttyv0 device."
		continue ;;
	?)	;;
	*)	echo "$0: $i: pty unit must be between 0 and 15"
		continue ;;
	esac
	rm -f tty$name[0-9a-zA-Z] pty$name[0-9a-zA-Z]
	jn=0
	while [ $jn -lt 62 ]
	do
		j=`echo 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ | dd bs=1 count=1 skip=$jn 2>/dev/null`
		skip=0
		if [ $jn -ge 16 ]; then
			skip=$(($class * 30 + 256 - 16))
		fi
		unit=$(($class * 16 + $jn + $skip))
		mknod tty$name$j c 4 $unit
		mknod pty$name$j c 5 $unit
		jn=$(($jn + 1))
	done
	chmod 666 tty$name[0-9a-zA-Z] pty$name[0-9a-zA-Z]
	;;

random)
	rm -f random urandom
	mknod random c 21 0
	mknod urandom c 21 1
	chmod 444 random
	chmod 644 urandom
	;;

tty*)
	ounit=${i#???}
	ounit=$(($ounit + 0))
	if [ $ounit -lt 10 ]; then
		unit=0$ounit
		rm -f com$ounit
	else
		unit=$ounit
	fi
	rm -f tty$unit dty$unit
	mknod tty$unit c 10 $(($ounit + $dialin ))
	mknod dty$unit c 10 $(($ounit + $dialout))
	chown uucp tty$unit dty$unit
	;;

lkm)
	rm -f lkm
	mknod lkm c 14 0
	chgrp kmem lkm
	chmod 640 lkm
	;;

clockctl)
	rm -f clockctl
	mknod clockctl c 22 0
	chgrp ntpd clockctl
	chmod 660 clockctl
	;;

local)
	if [ -f "$0.local" ]; then
		umask 0
		sh $0.local all
		umask 77
	fi
	;;

*)
	echo $i: unknown device
	;;

esac
done

}

makedev $*