#!/bin/sh
# usage: update-vsftp with no argument
# retrieve external IP address after ipcheck.py got it from the router
# author: Christophe Garrigue
# creation date: 7th may 2006 
# Publice domain

CONF=/etc/vsftpd/vsftpd.conf
IPCHECK=/etc/ipcheck/

#copy previous external IP
rm -f gate.dat.old
mv gate.dat gate.dat.old

#get last external ip detected by ipcheck
cat ${IPCHECK}ipcheck.html | sed -e 's/nochg\ \(.*\)\|good\ \(.*\)/IP=\1\2/' > gate.dat

#test if external IP has changed
rm -f gate.change

diff gate.dat gate.dat.old > gate.change

if test -s "gate.change"; then
	. gate.dat;
	rm ${CONF}.old;
	mv $CONF ${CONF}.old;
        sed -e"s/pasv_address=.*/pasv_address=$IP/" > $CONF < ${CONF}.old;
	/etc/init.d/vsftpd restart;
fi