#!/bin/sh
#
# Description: Starts and stops the Nagios monitor
#              used to provide network services status.
#

status_nagios ()
{

        if test ! -f $NagiosRun; then
                echo "No lock file found in $NagiosRun"
                return 1
        fi

        NagiosPID=`head -n 1 $NagiosRun`
        if test -x $NagiosCGI/daemonchk.cgi; then
                if $NagiosCGI/daemonchk.cgi -l $NagiosRun; then
                        return 0
                else
                        return 1
                fi
        else
                if ps -p $NagiosPID; then
                        return 0
                else
                        return 1
                fi
        fi

        return 1
}


killproc_nagios ()
{

        if test ! -f $NagiosRun; then
                echo "No lock file found in $NagiosRun"
                return 1
        fi

        NagiosPID=`head -n 1 $NagiosRun`
        kill $2 $NagiosPID
}


# Source function library
# Solaris doesn't have an rc.d directory, so do a test first
if [ -f /etc/rc.d/init.d/functions ]; then
        . /etc/rc.d/init.d/functions
elif [ -f /etc/init.d/functions ]; then
        . /etc/init.d/functions
fi

prefix=/usr/local/nagios
exec_prefix=${prefix}
NagiosBin=${exec_prefix}/bin/nagios
NagiosCfg=${prefix}/etc/nagios.cfg
NagiosLog=${prefix}/var/status.log
NagiosTmp=${prefix}/var/nagios.tmp
NagiosSav=${prefix}/var/status.sav
NagiosCmd=${prefix}/var/rw/nagios.cmd
NagiosVar=${prefix}/var
NagiosRun=${prefix}/var/nagios.lock
NagiosLckDir=/var/lock/subsys
NagiosLckFile=nagios
NagiosCGI=${exec_prefix}/sbin
Nagios=nagios
# Check that nagios exists.
test -f $NagiosBin || exit 0

# Check that nagios.cfg exists.
test -f $NagiosCfg || exit 0

# See how we were called.
case "$1" in

        start)
                echo "Starting network monitor: nagios"
                su -l $Nagios -c "touch $NagiosVar/nagios.log $NagiosSav"
                rm -f $NagiosCmd
                $NagiosBin -d $NagiosCfg
                if [ -d $NagiosLckDir ]; then touch $NagiosLckDir/$NagiosLckFile; fi
                sleep 1
                status_nagios nagios
                ;;

        stop)
                echo "Stopping network monitor: nagios"
                killproc_nagios nagios
                rm -f $NagiosLog $NagiosTmp $NagiosRun $NagiosLckDir/$NagiosLckFile $NagiosCmd
                ;;

        status)
                status_nagios nagios
                ;;

        check)
                $NagiosBin -v $NagiosCfg
                ;;

        *)
                echo "Usage: nagios {start|stop|check|status}"
                exit 1
                ;;

esac

# End of this script