#!/bin/sh
# Copyright Jean-Philippe Guillemin <jp.guillemin@free.fr>. This program is free software; you can redistribute
# it and/or modify it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or (at your option)
# any later version. Please take a look at http://www.gnu.org/copyleft/gpl.htm

# This script creates cdrom and dvd symlinks in /dev


VERBOSE="no"

# Log a string via the syslog facility.
log()
{
  [ "$VERBOSE" = "yes" ] && logger -p user.$1 -t "rc.uwd[$$]" -- "$2"
}

# Everything happens there
cd /dev

start() {
	
	for KERNEL in sr[0-9]* ; do
		[ ! -e $KERNEL ] && continue

		# echo "KERNEL=$KERNEL"
		num=0
		fstabisready='no'
		

		MODEL="$(cat /sys/block/$KERNEL/device/model)"
		if [ "$( /lib/udev/cdrom_id /dev/$KERNEL | grep 'ID_CDROM_DVD=1' )" ] ; then
			type="dvd"
			for i in $(/bin/ls dvd? 2>/dev/null) ; do
				num=$(($num + 1))
			done
		elif [ "$( /lib/udev/cdrom_id /dev/$KERNEL | grep 'ID_CDROM=1' )" ] ; then
			type="cdrom"
			for i in $(/bin/ls cdrom? 2>/dev/null) ; do
				num=$(($num + 1))
			done
		fi
		log info "I guess $type$num is a good symlink for $KERNEL"
		log info "creating symlinks for device $MODEL /dev/$KERNEL -> /dev/$type$num"

		ln -s $KERNEL $type$num
		chown root:cdrom $KERNEL
		chown root:cdrom $type$num
		if [ "$num" = "0" ] ; then
			num=""
			ln -s $KERNEL $type$num
			chown root:cdrom $type$num
		fi
		
	done  
	
	if [ ! -e cdrom ] ; then 
	   [ -e sr0 ] && ln -s sr0 cdrom
	  chown root:cdrom cdrom
	fi
}

stop() {
	rm -f /dev/cdrom*
	rm -f /dev/dvd*
}

restart() {
  stop
  start
}

status() {
	ls -al /dev/cdrom*
	ls -al /dev/dvd*
}

case "$1" in
'start')
  start 
  ;;
'stop')
  stop 
  ;;
'restart')
  restart
  ;;
'status')
  status
  ;;
*)
  echo "Usage $0: start|stop|restart|status"
esac