#!/bin/bash -x 

#source ~nagios/nrpe-init.sh
NRPELOC=/opt/tools/nagios
CONF=/tmp/alldiskcheck.conf
CHECKDISK="/usr/lib/nagios/plugins/check_disk -v"
TMPLOG=/tmp/alldiskcheck.log
ERRORLOG=/tmp/alldiskcheck.err
# while reading in config file
# execute check for each line (mount point)
# each line is [mount_point] [warn_thresh] [crit_thresh]
# if warn output to tmplog, continue checking
# if critical stop exit with critical print mount point
# otherwise exit on OK or warning, warning will print 
# mountpoints

# Verify
if [ ! -f "$CONF" -o ! -r "$CONF" ]
then
 echo "No Config File"
 exit 3
fi

# Cleanup from last run
rm $TMPLOG &> /dev/null 
rm $ERRORLOG &>/dev/null

while read line
do
  echo $line
  #read MNTPNT WARNTHR CRITTHR CHECKTYPE
  echo $MNTPNT $WARNTHR $CRITTHR $CHECKTYPE
  MNTPNT=`echo $line|cut -d " " -f 1`
  WARNTHR=`echo $line|cut -d " " -f 2`
  CRITTHR=`echo $line|cut -d " " -f 3`
  CHECKTYPE=`echo $line|cut -d " " -f 4`
  echo "Check type =>$CHECKTYPE<="
  if [ ! -z $CHECKTYPE ]
  then
  	if [ "$CHECKTYPE" = "GB" -o "$CHECKTYPE" = "MB" ]
  	then
  		#echo "$CHECKDISK -w $WARNTHR -c $CRITTHR -u $CHECKTYPE -p $MNTPNT > $TMPLOG"
  		$CHECKDISK -w "$WARNTHR" -c "$CRITTHR" -u "$CHECKTYPE" -p $MNTPNT > $TMPLOG
	else
		echo "CONFIG Error or something, check it out!"
		exit 3
	fi
  else
  	#echo "$CHECKDISK -w $WARNTHR\% -c $CRITTHR\% -p $MNTPNT > $TMPLOG"
	$CHECKDISK -w  "$WARNTHR"\% -c "$CRITTHR"\% -p $MNTPNT > $TMPLOG
  fi
  WHATEXIT=$?
  case $WHATEXIT in
  0)
  	# Within thresholds
    ;;
  1)
        # exceeded warning threshold
	cat $TMPLOG >> $ERRORLOG
    ;;
  2) 
        # exceeded critical threshold 
	cat $TMPLOG >> $ERRORLOG
	echo "`cat $ERRORLOG`"
	exit 2
    ;;
  *)
        # something weird happened
	echo "UNKNOWN: Please investigate!"
	exit 3
    ;;
  esac 
done < <(grep -v "#" $CONF)

# Checks if file is zero size
if [ -s $ERRORLOG  ]
then
	echo "`cat $ERRORLOG`"
	exit 1
else
	echo "OK: All disks within thresholds"
	exit 0
fi