#!/bin/sh

stats=`/usr/local/sbin/ntp_pool -u 206.222.212.234 | sed "s/.*://"`

ns_refs=$( for ns in $(dig pool.ntp.org ns +short | sed "s/\.$//"); do ip=$(dig pool.ntp.org @$ns a +short | grep "206\.222\.212\.234"); [[ -n "$ip" ]] && echo "$ns"; done | sort )

if [[ -z "$ns_refs" ]]
then
    ns_count=0
else
    ns_count=$( echo "$ns_refs" | wc -l )
fi

tstamp=$( date "+%D %T" )

echo "$tstamp $stats  $ns_count $( echo "$ns_refs" | tr '\n' ' ' )"