#!/bin/sh

# $FreeBSD$
#
# PROVIDE: dhcrelay
# REQUIRE: DAEMON
# KEYWORD: shutdown
#
# Add the following line to /etc/rc.conf to enable dhcrelay:
#
# dhcrelay_enable="YES"

# override these variables in /etc/rc.conf
dhcrelay_enable=${dhcrelay_enable:-"NO"}
dhcrelay6_enable=${dhcrelay6_enable:-"NO"}
# dhcrelay_flags=""			# command option(s)
# dhcrelay_servers=""			# dhcrelay server(s)
# dhcrelay_ifaces=""			# ethernet interface(s)

case $0 in
/etc/rc*)
	# during boot (shutdown) $0 is /etc/rc (/etc/rc.shutdown),
	# so get the name of the script from $_file
	name=$_file
	;;
*)
	name=$0
	;;
esac

name=${name##*/isc-}

case ${name} in
*6)
	ipversion=-6
	;;
*)
	ipversion=-4
	;;
esac

dhcrelay_precmd ()
{
	local ifaces _servers _ifaces
	
	eval "_servers=\${${name}_servers}"
	eval "_ifaces=\${${name}_ifaces}"

	if [ -z "${_servers}" ]; then
		err 1 "no ${name} server(s) configured."
	fi

	ifaces=
	for iface in ${_ifaces}; do
		ifaces="${ifaces} -i ${iface}"
	done

	rc_flags="${rc_flags} ${ipversion} ${ifaces} ${_servers}"
}

. /etc/rc.subr

rcvar=${name}_enable

command=%%PREFIX%%/sbin/${name}
pidfile=/var/run/${name}.pid
start_precmd=${name}_precmd

load_rc_config ${name}
run_rc_command "$1"