#!/usr/bin/sh
###############################################
#
# Nagios script to check NIS status on a host
# 
# See usage for command line switches
#
# Author: Ian Yates (i.yates@uea.ac.uk)
# 
# Created: 2006-07-04 (i.yates@uea.ac.uk)
#
###############################################

. /usr/local/nagios/libexec/utils.sh


VERSION="1.0"

AWK=/usr/bin/awk
SED=/usr/bin/sed
GREP=/usr/bin/grep
YPPOLL=/usr/sbin/yppoll


FLAG_VERBOSE=FALSE
NIS_HOST=""
NIS_DOMAIN=""
RESULT=""
EXIT_STATUS=$STATE_OK


###############################################
#
## FUNCTIONS 
#

## Print usage
usage() {
	echo " check_nis $VERSION - Nagios NIS check script"
	echo ""
	echo " Usage: check_nis -H <hostname> -d <nis domain> [ -v ] [ -h ]"
	echo ""
	echo "		 -H  Name of host running the NIS service you wish to check"
	echo "		 -d  NIS domain"
	echo "		 -v  Verbose output"
	echo "		 -h  Show this page"
	echo ""
}
 
## Process command line options
doopts() {
	if ( `test 0 -lt $#` )
	then
		while getopts H:d:vh myarg "$@"
		do
			case $myarg in
				h|\?)
					usage
					exit;;
				H)
					NIS_HOST=$OPTARG;;
				d)
					NIS_DOMAIN=$OPTARG;;
				v)
					FLAG_VERBOSE=TRUE;;
				*)	# Default
					usage
					exit;;
			esac
		done
	else
		usage
		exit
	fi
}


# Write output and return result
theend() {
	echo $RESULT
	exit $EXIT_STATUS
}


#
## END FUNCTIONS 
#

#############################################
#
## MAIN 
#


# Handle command line options
doopts $@

# Do the do
OUTPUT=`$YPPOLL -h $NIS_HOST -d $NIS_DOMAIN passwd.byname 2> /dev/null | $GREP 'is supported'`
if test "$OUTPUT" != "" ; then
	RESULT="NIS OK - domain $NIS_DOMAIN"
	EXIT_STATUS=$STATE_OK
else
	RESULT="NIS CRITICAL - domain $NIS_DOMAIN not answering"
	EXIT_STATUS=$STATE_CRITICAL
fi

# Quit and return information and exit status
theend