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#!/bin/bash
# CUPS print queue plugin for Nagios
# Written by John E. Vincent (nagios-plugs@lusis.org)
# Last Modified: 06-27-2006
# License: GNU General Public License, according to
# <c841561b1002182124g7ca4e8fbme6574b3a558acc80@mail.gmail.com>
# on debian-edu@lists.debian.org
#
# Description:
#
# This plugin will check the status of a remote CUPS
# print queue. It will provide the size of the queue
# and optionally the age of the queue
#
# Location of the lpstat command (if not in path)
LPSTAT="/usr/bin/lpstat"
# Ensure known locale
export LC_ALL=C
# Don't change anything below here
# Nagios return codes
STATE_OK=0
STATE_WARNING=1
STATE_CRITICAL=2
STATE_UNKNOWN=3
STATE_DEPENDENT=4
if [ ! -x "$LPSTAT" ]
then
echo "UNKNOWN: $LPSTAT not found or is not executable by the nagios user"
exitstatus=$STATE_UNKNOWN
exit $exitstatus
fi
PROGNAME=`basename $0`
print_usage() {
echo "Usage: $PROGNAME -H <hostname> -T <s|b> -w <size warning level> -c <size critical level> -a <max age>"
echo ""
echo "Notes:"
echo "-H: Hostname - Can be a hostname or IP address"
echo "-T: Type of check - Can be queue size (s) or both queu size and queue age (b)"
echo "-w: WARNING level for queue size"
echo "-c: CRITICAL level for queue size"
echo "-a: Max age of queue. Returns CRITICAL if jobs exists older than <max age> days"
echo ""
}
print_help() {
print_usage
echo ""
echo "This plugin will check the CUPS print queue on a remote (or local with -H localhost) CUPS server."
echo "It can check both the size of the queue and the age of the oldest print job in the queue."
echo "-w and -c are for reporting warning and critical levels of the queue size."
echo "-a is optional for specifying the max age of a job in the print queue. Anything older thatn <max age>"
echo "will return a CRITICAL"
echo ""
exit 0
}
check_queue_size()
{
if [ "$JOBCOUNT" -ge "$critlevel" ]
then
MESSAGE="CRITICAL: CUPS queue size - $JOBCOUNT| $PERFDATA"
exitstatus=$STATE_CRITICAL
elif [ "$JOBCOUNT" -ge "$warnlevel" ]
then
MESSAGE="WARNING: CUPS queue size - $JOBCOUNT| $PERFDATA"
exitstatus=$STATE_WARNING
else
MESSAGE="OK: CUPS queue size - $JOBCOUNT| $PERFDATA"
exitstatus=$STATE_OK
fi
}
if [ $# -lt 4 ]; then
print_usage
exit $STATE_UNKNOWN
fi
exitstatus=$STATE_UNKNOWN #default
while test -n "$1"; do
case "$1" in
--help)
print_help
exit $STATE_OK
;;
-h)
print_help
exit $STATE_OK
;;
-H)
hostname=$2
shift
;;
-T)
testtype=$2
shift
;;
-w)
warnlevel=$2
shift
;;
-c)
critlevel=$2
shift
;;
-a)
maxage=$2
shift
;;
esac
shift
done
# Check arguments for validity
if [ -z $hostname ]
then
echo "You must specify a hostname (or localhost to test the local system)"
print_usage
exitstatus=$STATE_UNKNOWN
exit $exitstatus
fi
if [[ -z $critlevel || -z $warnlevel ]] # Did we get warn and crit values?
then
echo "You must specify a warning and critical level"
print_usage
exitstatus=$STATE_UNKNOWN
exit $exitstatus
elif [ $critlevel -lt $warnlevel ] # Do the warn/crit values make sense?
then
echo "CRITICAL value of $critlevel is less than WARNING level of $warnlevel"
print_usage
exitstatus=$STATE_UNKNOWN
exit $exitstatus
fi
if [ -z $testtype ] # We require a test type
then
echo "You must specify a test type"
print_usage
exitstatus=$STATE_UNKNOWN
exit $exitstatus
elif [[ "$testtype" = [b]* && -z $maxage ]]
then
echo "You must specify <max age> when using a test type of 'b'"
print_usage
exitstatus=$STATE_UNKNOWN
exit $exitstatus
else
JOBTMP=`mktemp -t lpstat.$hostname.XXXXXX` # Create a tmpfile to store the lpstat results
STALEJOBCOUNT=0 # default number of old jobs
CURDATETS=`date +%s` # Get the current date as unixtime
$LPSTAT -h $hostname -o > $JOBTMP # run the lpstat command against the host.
if [ $? -ne 0 ]
then
rm -rf $JOBTMP
echo "UNKNOWN: lpstat command returned an error. Please test this script manually."
exitstatus=$STATE_UNKNOWN
exit $exitstatus
fi
JOBCOUNT=`wc -l < $JOBTMP` # populate the jobcount
PERFDATA="print_jobs=$JOBCOUNT;$warnlevel;$critlevel;0"
if [[ "$JOBCOUNT" -gt 0 && $maxage ]]
then
MAXAGETS=`echo "86400 * $maxage" | bc` # 86400 seconds in a day * maxage
exec<$JOBTMP # read the file to determine job age
while read PRINTJOB
do
JOBDATE=`echo $PRINTJOB | awk '{ print $4, $5, $6, $7, $8 }'` # Grab the job date from the job listing
JOBDATETS=`date --date="$JOBDATE" +%s` # Convert the job date to unixtime
DATEDIFF=`echo "($CURDATETS - $JOBDATETS)" | bc`
if [ $DATEDIFF -gt $MAXAGETS ]
then
MESSAGE="CRITICAL: Some CUPS jobs are older than $maxage days| $PERFDATA"
exitstatus=$STATE_CRITICAL
else
check_queue_size
fi
done
else
check_queue_size
fi
rm -rf $JOBTMP
fi
echo $MESSAGE
exit $exitstatus
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