#!/bin/bash

do_start() {
	echo "starting dhcp daemon"
	udhcpd -S /etc/udhcpd.conf
}

do_stop() {
	echo "stopping dhcp daemon"
	killall udhcpd
}

usage() {
	echo "Usage: $(basename $0) start|stop|restart"
	exit 1
}

# main
if [[ $# != 1 ]]; then
	usage
fi

case $1 in
	start)
		if [[ ! -f "/etc/udhcpd.conf" ]]
		then
			echo "/etc/udhcpd.conf does not exist"
			exit 1
		fi
		do_start
		;;
	stop)
		do_stop
		;;
	restart)
		do_stop
		sleep 1
		do_start
		;;
	*)
		usage
		;;
esac

exit 0