#!/bin/sh

INTERFACE="${1}"
STATUS="${2}"

case "${STATUS}" in
	up|dhcp4-change)
		if [ -n "${DHCP4_NTP_SERVERS}" ]; then
			mkdir -p /run/systemd/timesyncd.conf.d/
			echo "[Time]" > /run/systemd/timesyncd.conf.d/${INTERFACE}.conf
			echo "NTP = ${DHCP4_NTP_SERVERS}" >> /run/systemd/timesyncd.conf.d/${INTERFACE}.conf
			timedatectl set-ntp true
		fi
		;;
	down)
		rm -f /run/systemd/timesyncd.conf.d/${INTERFACE}.conf
		;;
esac