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#!/sbin/openrc-run
# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License, v2

command="/usr/sbin/pktsetup"
devdir="/dev/pktcdvd"

depend() {
	need localmount modules
}

checkconfig() {
	if ! [ -e "${devdir}/control" ] ; then
		eerror "Could not find packet-writing control device at /dev/pktcdvd/control"
		eerror "Please ensure that your kernel includes packet writing support,"
		eerror "and if modular, ensure that the module is loaded."
		return 1
	fi
}

get_rw_devices() {
	local sys_file="/proc/sys/dev/cdrom/info"
	devices_raw=$(sed -re '/^drive name:/I!d; s/.*:\s+//' ${sys_file})
	count=0
	for i in ${devices_raw} ; do
		eval "devices_$count=\"\$i\""
		count=$(( $count + 1 ))
	done
	devs=""

	cdrw_caps=$(sed -re '/^Can write CD-RW:/I!d; s/.*:\s+//' ${sys_file})

	count=0
	for i in ${cdrw_caps} ; do
		[ "$i" -eq 1 ] && eval "devs=\"\$devs \$devices_$count\""
		count=$(( ${count} + 1 ))
	done

	echo ${devs}
}

start() {
	checkconfig || return 1

	for i in $(get_rw_devices)
	do
		devnode="/dev/${i}"
		[ -e "${devnode}" ] || continue

		${command} "${i}" "${devnode}" > /dev/null
		[ -e "${devdir}/${i}" ] || continue
		chmod 660 "${devdir}/${i}"
		chgrp cdrw "${devdir}/${i}"
	done
}

stop() {
	checkconfig || return 1
	
	for i in $(get_rw_devices)
	do
		${command} -d "${i}" > /dev/null
	done
}