#!/bin/sh

# Nagios	Startup script for the Nagios monitoring daemon
#
# chkconfig:	- 85 15
# description:	Nagios is a service monitoring system
# processname: nagios
# config: /etc/nagios/nagios.cfg
# pidfile: /var/nagios/nagios.pid
#
### BEGIN INIT INFO
# Provides:		nagios
# Required-Start:	$local_fs $syslog $network
# Required-Stop:	$local_fs $syslog $network
# Short-Description:	start and stop Nagios monitoring server
# Description:		Nagios is is a service monitoring system
### END INIT INFO

# Source function library.
#. /etc/rc.d/init.d/functions
. /etc/rc.status

prefix="/usr/local/nagios"
exec_prefix="${prefix}"
exec="${exec_prefix}/bin/nagios"
prog="nagios"
config="${prefix}/etc/nagios.cfg"
pidfile="${prefix}/var/nagios.lock"
user="nagios"
group="nagios"
checkconfig="false"
ramdiskdir="/var/nagios/ramcache"

test -e /etc/sysconfig/$prog && . /etc/sysconfig/$prog

lockfile=/var/lock/subsys/$prog
USE_RAMDISK=${USE_RAMDISK:-0}

if test "$USE_RAMDISK" -ne 0 && test "$RAMDISK_SIZE"X != "X"; then
	ramdisk=`mount |grep "$ramdiskdir type tmpfs"`
	if [ "$ramdisk"X == "X" ]; then
		mkdir -p -m 0755 $ramdiskdir
		mount -t tmpfs -o size=${RAMDISK_SIZE}m tmpfs $ramdiskdir
		mkdir -p -m 0755 $ramdiskdir/checkresults
		chown -R $user:$group $ramdiskdir
	fi
fi

check_config() {
	TMPFILE="/tmp/.configtest.$$"
	/sbin/service nagios configtest > "$TMPFILE"
	WARN=`grep ^"Total Warnings:" "$TMPFILE" |awk -F: '{print \$2}' |sed s/' '//g`
	ERR=`grep ^"Total Errors:" "$TMPFILE" |awk -F: '{print \$2}' |sed s/' '//g`

	if test "$WARN" = "0" && test "${ERR}" = "0"; then
		echo "OK - Configuration check verified" > /var/run/nagios.configtest
		chmod 0644 /var/run/nagios.configtest
		/bin/rm "$TMPFILE"
	return 0
	else
		# We'll write out the errors to a file we can have a
		# script watching for
		echo "WARNING: Errors in config files - see log for details: $TMPFILE" > /var/run/nagios.configtest
		egrep -i "(^warning|^error)" "$TMPFILE" >> /var/run/nagios.configtest
		chmod 0644 /var/run/nagios.configtest
		cat "$TMPFILE"
	exit 8
	fi
}

start() {
	test -x $exec || exit 5
	test -f $config || exit 6
	if test "$checkconfig" == "false"; then
		check_config
	fi
	echo -n $"Starting $prog: "
	# We need to _make sure_ the precache is there and verified
	# Raise priority to make it run better
#	daemon --user=$user $exec -ud $config
	startproc -u $user $exec -ud $config 
	retval=$?
	#echo
	test $retval -eq 0 && touch $lockfile
	return $retval
}

stop() {
	echo -n $"Stopping $prog: "
#	killproc -p ${pidfile} -d 10 $exec
	killproc -p $pidfile -t 10 $exec
	retval=$?
#	echo
	test $retval -eq 0 && rm -f $lockfile
	return $retval
}


restart() {
	check_config
	checkconfig="true"
	stop
	rc_status -v
	start
	rc_status -v
}

reload() {
	echo -n $"Reloading $prog: "
	killproc -p ${pidfile} $exec -HUP
	RETVAL=$?
	#echo
}

force_reload() {
	restart
}

case "$1" in
	start)
		#status $prog && exit 0
		$1
		rc_status -v
		#$1
		;;
	stop)
		#status $prog|| exit 0
		$1
                rc_status -v
		#$1
		;;
	restart)
		echo "Restarting $prog:"
		$1
		;;
	reload)
		#status $prog || exit 7
		$1
                rc_status -v
#		$1
		;;
	force-reload)
		force_reload
		;;
	status)
		#status $prog
		echo -n "Checking for $prog:"
		checkproc $prog
                rc_status -v
		;;
	condrestart|try-restart)
		#status $prog|| exit 0
                rc_status -v
		restart
		;;
	configtest)
#		$nice runuser -s /bin/bash - $user -c "$corelimit >/dev/null 2>&1 ; $exec -vp $config"
                $nice su -s /bin/bash - $user -c "$corelimit >/dev/null 2>&1 ; $exec -vp $config"
		RETVAL=$?
		;;
	*)
		echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
		exit 2
esac
exit $?