#!/bin/sh

# Start/stop/restart/reload nrpe
# Copyright (c) 2016 Nagios(R) Core(TM) Development Team

NRPE_BIN=/usr/local/nagios/bin/nrpe
NRPE_CFG=/usr/local/nagios/etc/nrpe.cfg
PID_DIR=/usr/local/nagios/var
PID_FILE=/usr/local/nagios/var/nrpe.pid

# Start nrpe
nrpe_start() {
	echo -n "Starting nrpe daemon: $NRPE_BIN - "
	if [ ! -d "$PID_DIR" ]; then
		mkdir -p "$PID_DIR"
	fi
	$NRPE_BIN -c $NRPE_CFG -d
	if [ $? = 0 ]; then
		echo "started"
	else
		echo "failed"
	fi
}

# Stop nrpe
nrpe_stop() {
	echo -n "Stopping nrpe daemon - "
	if [ -r "$PID_FILE" ]; then 
		kill $(cat "$PID_FILE")
	else
		killall nrpe
	fi
	if [ $? = 0 ]; then
		echo "stopped"
	else
		echo "failed"
	fi
}

# Restart nrpe
nrpe_restart() {
	nrpe_stop
	sleep 1
	nrpe_start
}

# Reload nrpe
nrpe_reload() {
	echo -n "Reloading nrpe daemon - "
	if [ -r "$PID_FILE" ]; then 
		kill -HUP $(cat "$PID_FILE")
	else
		killall -HUP nrpe
	fi
	if [ $? = 0 ]; then
		echo "reloaded"
	else
		echo "failed"
	fi
}

# nrpe status
nrpe_status() {
	if ps -C nrpe >/dev/null; then
		echo "nrpe is running."
	else
		echo "nrpe is stopped."
	fi
}

case "$1" in
'start')
	nrpe_start
	;;
'stop')
	nrpe_stop
	;;
'restart')
	nrpe_restart
	;;
'reload')
	nrpe_reload
	;;
'status')
	nrpe_status
	;;
*)
	echo "Usage $0 start|stop|restart|reload|status"
	;;
esac