#!/bin/bash
#
# lvs-vsmonitor.sh
# monitor service availbility framework
#
#-#-#  Don't run this file directly #-#-#
#
# create a symlink to this file, named
# according to the following convention:
#
#  lvs-<service_name_or_port_number>.sh
#
# then call the symlink from the send_program line in lvs.cf
# send_program = /where/it/is/lvs-yourport[name].sh %h
#
server=${1}
port=$(basename $0 .sh)
port=${port/lvs-/}
[ -z $server ] && echo echo "Read header of this file: \'$0\' for how to use it" && exit 1
NetCat=$(which nc)
[ -z $NetCat ] && echo "ERROR: can't find netcat. Is it installed? Exiting." && exit 1
echo $(echo | $NetCat $server $port) | \
while read -a j
do
    k=( $(echo "${j[0]}" | tr [[:punct:]] ' ') )
    echo ${k[0]}
done