#!/bin/bash

VERSION="0.5"
RCUPDATE="/sbin/rc-update"
RUNLEVELDIR="/etc/runlevels"
RUNLEVELS="boot default nonetwork single"
SRVDIR="/etc/init.d"

list=
add=
del=

basename=${0##*/}

#
# Usage
#
usage() {
cat << EOF 1>&2
Chkconfig for Gentoo version ${VERSION}.
This may be freely redistribuited undec the terms of the GNU Public License.


usage:	$basename --list [name]
	$basename --add <name>
	$basename --del <name>
	$basename [--level <levels>] <name> <on|off>
	$basename --help

EOF
exit 1
}


if [ "$#" -eq "0" ]
then
	usage
fi

#
# Gestione parametri
#
while [[ $1 = --* ]] || [[ $1 = -* ]]; do
	opt=$1
	shift
	case $opt in
		--list) list=yes;;
		--add)  add=yes;;
		--del)  del=yes;;
		--level) level=yes;;
		--help) usage;;
		*) echo "Unknown option $opt"; usage;
	esac
done

if [ $level ] || [ "$x${2##*/}" = "xon" ] || [ "x${2##*/}" = "xoff" ]
then
	levels="defaults"
	if [ $level ]; then levels=`echo $@ | cut -d " " -f-$(( $# - 2 ))`; fi
	service=`echo $@ | cut -d " " -f$(( $# - 1 ))`
	action=`echo $@ | cut -d " " -f$#-`

	if [ "$action" = "on" ]
	then
		action="add"
	else
		if [ "$action" = "off" ]
		then
			action="del"
		else
			usage;
		fi
	fi

	if [ -e ${SRVDIR}/${service} ]
	then
		$RCUPDATE $action $service $levels
	else
		echo "Service: ${service} doesn't exist."
	fi
else
	service=${1##*/}; shift
fi

#
# --add
#
if [ $add ];then
	if [ -e ${SRVDIR}/${service} ]
	then
		$RCUPDATE add $service default
	else
		echo "Service: ${service} doesn't exist."
	fi
fi

#
# --del
#
if [ $del ];then
        if [ -e ${SRVDIR}/${service} ]
        then
                $RCUPDATE del $service default
        else
                echo "Service: ${service} doesn't exist."
        fi
fi
		
#
#  --list
#
if [ $list ]; then
	if [ $service ] && [ -e ${SRVDIR}/${service} ]; then
		SERVICES=$service
	else
		SERVICES=`cd ${SRVDIR} && grep -l "#\!/sbin/runscript" * |grep -v "\.sh"`
	fi

	for SRV in ${SERVICES}
	do
		echo -n "${SRV} "
		for RLVL in ${RUNLEVELS}
		do
			if [ -e ${RUNLEVELDIR}/${RLVL}/${SRV} ]
			then
				echo -n "${RLVL}:on "
			else
				echo -n "${RLVL}:off "
			fi
		done
		echo
	done | column -t
fi