#!/sbin/runscript 
# Copyright 1999-2012 Gentoo Foundation 
# Distributed under the terms of the GNU General Public License v2 
# $Header: $ 
#
extra_commands="rebuild"
extra_started_commands="reload"
description="NSD is an authoritative only, high performance, open source name server"
description_rebuild="Rebuild zone database"
description_reload="Rebuild zone database and reload it"

config_file=${config_file:-/etc/nsd/nsd.conf}
my_nsdc="/usr/sbin/nsdc"
my_nsd_checkconf="/usr/sbin/nsd-checkconf"

depend() { 
	need net 
	use logger 
	provide auth-dns
} 

_checkconf() {
	if ! test -e "${config_file}"; then
		eerror "You need to create an appropriate config file."
		eerror "An example can be found in /etc/nsd/nsd.conf.sample"
		return 1
	fi

	if ! ${my_nsd_checkconf} "${config_file}"; then
		eerror "You have errors in your configfile (${config_file})"
		return 1
	fi
	return 0
}

_checkdb() {
	local database=$(${my_nsd_checkconf} -o database ${config_file})
	if ! test -f $database; then
		eerror "You have no database file in ${database}, will try to rebuild"
		rebuild
	fi
	return 0
}

_patch() {
	local difffile=$(${my_nsd_checkconf} -o difffile ${config_file})
	if test -s ${difffile}; then
		ebegin "Patching NSD zone files"
		${my_nsdc} patch > /dev/null
		eend $?
	fi
}

rebuild() {
	ebegin "Rebuilding NSD zone database"
	if ! ${my_nsdc} rebuild > /dev/null; then
		eerror "There was an error rebuilding the database. Please review your zone files."
		return 1
	fi
	eend $?
}

start() { 
	ebegin "Starting NSD"
	_checkconf || return 1
	_checkdb || return 1
	${my_nsdc} start
	${my_nsdc} running
	eend $? 
}

stop() { 
	ebegin "Stopping NSD"
	_patch
	${my_nsdc} stop
	eend $? 
} 

reload() {
	_checkconf || return 1
	rebuild || return 1
	ebegin "Reloading NSD zone database"
	${my_nsdc} reload
	eend $? 
}