#!/bin/sh

score=`curl --silent "http://www.pool.ntp.org/scores/195.154.45.50/log?limit=1" 2>&1 | tail -1 | cut -f 5 -d ","`


if [ $score == "" ]
then
	echo "UNKNOWN: unable to parse result"
	exit 3
fi

result=`echo "$score >= 20" | bc` 
if [ $result == 1 ]
then
	echo "OK: score=$score|score=$score;;;;"
	exit 0
fi
result=`echo "$score > 10" | bc` 
if [ $result == 1 ]
then
	echo "WARNING: score=$score|score=$score;;;;"
	exit 1
else
	echo "CRITICAL: score=$score|score=$score;;;;"
	exit 2
fi