#!/bin/bash

#set -x

#----------------------------------------------------------------------
#
# Author: Emanuel Quass <emanuel.quass@gmx.net>
# Date:   10.11.2008
#
# Purpose:
# Check if the filer is in status normal via SNMP v1
#
# How it works:
# 
# It tries to get SNMPv1-MIB::netapp-specific information miscGlobalStatus
# It displays the message 
#
# Changes:
# 
# - None
#
# Synopsis:
# 
# /usr/lib/nagios/plugins/check_snmp_globalstatusmessage -H <ip-address/hostname> -C <comminunity>
#
#----------------------------------------------------------------------


export SCRIPT_NAME=`basename $0`
export RETRY=7
export STATUSOK="The system's global status is normal."

export NP=0
export NoA=$#

function usage()
{

echo
echo "Usage: $SCRIPT_NAME [Options]"
echo 
echo "Options: -H <ip-address/hostname>"
echo "         -C <community>"
echo "         -h for help"
echo
}

###############################################################
# --- MAIN - Hauptverarbeitung --------------------------------
###############################################################

if [ $NoA -lt 4 ] || [ $NoA -gt 4 ]
   then

   if [ $NoA -eq 1 ] && [ $1 = "-h" ]
      then
      usage
      exit 0
      else
      echo
      echo "Invalid number of arguments supplied"
      usage
      exit 3
   fi
fi

if [ $NoA -eq 4 ]
   then
   # Um die Funktion in Nagios Variabel nutzen zu können, wird in check_commands.cfg IMMER
   # die Option -f angegeben. Wenn aber kein Wet übergeben wird muss trotzdem -f verarbeitet 
   # werden. In diesem Fall mit dem Null-Befehl

   while getopts H:C: OPTION
         do

         case "$OPTION"
              in
   
              H) HOST=$OPTARG ;;
	
              C) COMMUNITY=$OPTARG ;;
	
              \?) echo
                  echo "Invalid command arguments supplied"
                  usage
                  exit 3;;
         esac
   done

fi

#--------------------------------------------------------------------------------------------------------------

DESCR=$(snmpget -c $COMMUNITY -v1 -On $HOST .1.3.6.1.4.1.789.1.2.2.25.0)
RETCO=$?

if [ $RETCO -ne 0 ]
   then
   echo "Critical! SNMP is not accessible. Please check!"
   exit 2
fi

DESCR=$(echo $DESCR | sed 's/^.*STRING: //' | sed 's/"//g'  | sed 's/[ \t]*$//g' )

if [ $RETCO -eq 0 ]
   then
   if [ "$STATUSOK" == "$DESCR" ]
      then 
      true
   else
      echo "ACHTUNG! Fehler auf Filer $HOST: $DESCR"
      exit 2
   fi


   echo "OK! SNMP is  accessible.SNMP output:<br>$DESCR"
   exit 0
fi