#!/bin/sh

botname=nagiosbot
host=localhost
port=6667
warn=10
crit=15

while getopts 'H:p:w:c:' opt
do
	case "$opt" in
		H)	host="$OPTARG";;
		p)	port="$OPTARG";;
		w)	warn="$OPTARG";;
		c)	crit="$OPTARG";;
	esac
done

# if your netcat does not have the -i <interval> flag, modify the script below,
# putting this function in the pipeline between echo and nc
function delay {
	while read line
	do
		sleep 1
		echo $line
	done
}

SECONDS=0
echo "NICK $botname
USER $botname 8 * : $botname
QUIT" | nc -i 1 -w $crit $host $port 2>&1 > /dev/null
exit=$?
if [ ! "$exit" == 0 ]; then
	echo "IRCd CRITICAL: $host: connection failed"
	exit $exit
fi

if [ "$SECONDS" -ge "$crit" ]; then
	echo "IRCd CRITICAL: $host: check took $SECONDS"
	exit 2
elif [ "$SECONDS" -ge "$warn" ]; then
	echo "IRCd WARNING: $host: check took $SECONDS"
	exit 1
else
	echo "IRCd OK: $host: check took $SECONDS"
	exit 0
fi