#!/bin/sh -
PATH=/usr/bin:/usr/ucb ; export PATH
FTPDLOG=${1:-/var/log/ftpd}
TMPFILE=/tmp/ftpdproc$$
grep PORT $FTPDLOG | sed -e 's/.*\(\[[0-9]*\]\).*/\1/' | sort -u > $TMPFILE
fgrep -f $TMPFILE $FTPDLOG
exec rm -f $TMPFILE
