#!/bin/bash # # Author: deelkar@gmx.de # # Script: /usr/local/bin/reversedns # # Version: 7.3.1 # # Requires: Bash, grep, sed, host # # Public: yes # Copyright (C) 2002 "Dirk-Lueder Kreie" # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the Free # Software Foundation; either version 2 of the License, or (at your option) # any later version. # # This program is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for # more details. # # You should have received a copy of the GNU General Public License along with # this program; if not, write to the # # Free Software Foundation, Inc. # 59 Temple Place, Suite 330 # Boston, MA 02111-1307 # USA. dyndns=$1 if [ "$1" = "" ]; then dyndns="127.0.0.1" fi myhost=`host $dyndns|grep "pointer"` if [ "$myhost" = "" ]; then pushd /var/log/arp >/dev/null grep $1 $(ls -t /var/log/arp) | sed -e 's/.*log://' | sed -n 1p | sed -e 's/\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\).*\([[:alnum:]][[:alnum:]]:[[:alnum:]][[:alnum:]]:[[:alnum:]][[:alnum:]]:[[:alnum:]][[:alnum:]]:[[:alnum:]][[:alnum:]]:[[:alnum:]][[:alnum:]]\).*/\1 (\2)/' -e 's/[^[:alnum:]]*\*.*MP.*eth0/ (pptp)/' popd >/dev/null fi for IP_PARAM in $myhost; do echo $IP_PARAM | grep -i deelkar.ath.cx | sed s/.deelkar.ath.cx// echo $IP_PARAM | grep -i deelkar.ath.cx > /dev/null && break ## exit after first lookup succeeds done | sed -e 's/\.$//'
Make your own free website on Tripod.com