restart racoon ipsec vpn if $@ hosts can't be reached

restart_racoon

#!/bin/bash
status=0
logdir="/var/log/vpnevent/"
log="vpnevent.log"

#[[ ! $UID = 0 ]] && echo "This script must be run as root"; exit 1

if [[ ! "$1" ]]
then
        echo "usage: "$0" List of hosts on which this script depends"
        echo "example: "$0" wwww.google.com 127.0.0.1"
        echo
        exit 1
fi


log() {
        if [ ! -d "$logdir" ]; then
                mkdir -p "$logdir"
        fi

        if [ ! -f "$logdir""$log" ]; then
                touch "$logdir""$log"
                log "creating log file"
        fi

        echo "$(date "+%y/%m/%d %h:%m:%s"): $@" | tee -a "$logdir""$log"
}


for hosts in "$@"
do

ping -c4 $hosts &> /dev/null;

status=$(($status + $?))

done

if [[ $status -gt 0 ]]; then
echo $status
/etc/init.d/racoon stop
/etc/init.d/setkey stop
/etc/init.d/setkey start
/etc/init.d/racoon start
log PING FAILED, RESTARTING IPSEC TUNNEL
fi