#!/bin/sh

returnval=0

while [ "$1" ]
do
	if [ "$1" = "-H" ]
	then
		shift
		host="$1"
		break
	fi
	shift
done

ping ${host} -n 3 >/dev/null

case $? in 
	0) echo "OK: Host ${host} pings."; returnval=0;;
	1) echo "CRITICAL: Host ${host} fails to ping (DNS name?)"; returnval=1;;
	2) echo "CRITICAL: Host ${host} does not ping."; returnval=2;;
esac

exit ${returnval}