#!/sbin/runscript
# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: $

depend() {
	need localmount
}

# Starting with kernel 2.6.8 there is a different syntax
# for the pktsetup program.
kernel_major=$(( `uname -r | cut -d'-' -f1 | cut -d'.' -f2` ))
kernel_minor=$(( `uname -r | cut -d'-' -f1 | cut -d'.' -f3` ))

# The pktsetup program doesn't seem to return any error codes.
# So, we do our error checking by seeing whether the block
# device has been set up or torn down correctly.  This is not
# terribly elegent.  Blech.

start() {
	local i
	local minor=0
	local retval=0
	local last_result=0

	for i in ${cdrw_list}
	do
		ebegin "Enabling CD-RW packet writing on ${i}"
		if [ ! -e "/dev/pktcdvd" ]
		then
			/sbin/modprobe -a pktcdvd
		fi
		if [ ${kernel_major} -ge 6 ] && [ ${kernel_minor} -ge 8 ]
			then /usr/bin/pktsetup ${minor} ${i} >/dev/null 2>&1
			else /usr/bin/pktsetup /dev/pktcdvd/${minor} ${i} >/dev/null 2>&1
		fi
		if [ -b /dev/pktcdvd/${minor} ]
			then last_result=0
			else last_result=1
		fi
		retval=$(( ${retval} + ${last_result} ))
		minor=$(( ${minor} + 1 ))
		if [ ${last_result} -gt 0 ]
		then
			ewend ${last_result} "Failed to enable packet writing on ${i}"
		fi
	done
	eend ${retval}
}

stop() {
	local i
	local minor=0
	local retval=0
	local last_result=0

	for i in ${cdrw_list}
	do
		ebegin "Disabling CD-RW packet writing on ${i}"
		umount /dev/pktcdvd/${minor} >/dev/null 2>&1 || true
		if [ ${kernel_major} -ge 6 ] && [ ${kernel_minor} -ge 8 ]
			then /usr/bin/pktsetup -d ${minor} >/dev/null 2>&1
			else /usr/bin/pktsetup -d /dev/pktcdvd/${minor} ${i} >/dev/null 2>&1
		fi
		if [ -b /dev/pktcdvd/${minor} ]
			then last_result=1
			else last_result=0
		fi
		retval=$(( ${retval} + ${last_result} ))
		minor=$(( ${minor} + 1 ))
		if [ ${last_result} -gt 0 ]
		then
			ewend ${last_result} "Failed to disable packet writing on ${i}"
		fi
	done
	eend ${retval}
}