#!/bin/sh # # Author deelkar@gmx.de # # /usr/local/bin/ip-update # # Version 7.3.2 # # Requires: yi.bs, ddclient # # 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. lckfile="/var/sysflags/ip-update" trap "rm $lckfile; exit" SIGHUP SIGINT SIGTERM EXT_IF="ppp0" export LC_ALL=C if [ "`find $lckfile -cmin +15 2>&1`" = "$lckfile" ]; then test -e $lckfile && rm $lckfile echo `date`" - Warning: old lockfile \"$lckfile\" exists" echo `date`" - Warning: old lockfile \"$lckfile\" exists" > /dev/stderr fi test -e $lckfile && echo `date`" - Fatal: lockfile \"$lckfile\" exists" test -e $lckfile && exit 1 touch $lckfile chmod 666 $lckfile zonefiledir="/var/bind/pri" oldip=`cat /var/log/oldip` oldserial=`cat /var/log/oldserial` curip=`/usr/local/bin/getip $EXT_IF` curserial=`date +%Y%m%d%H` if [ -z "$curip" ]; then curip=0.0.0.0 fi if [ "$oldip" != "$curip" ]; then echo "old \"$oldip\" != \"$curip\" new" /usr/local/bin/yi.bs& /usr/local/bin/ddclient -daemon=0 -syslog -use=if -if=$EXT_IF cp ${zonefiledir}/deelkar.ath.cx.zone /tmp/deelkar.ath.cx.zone.backup-$curserial sed -e "s/$oldip/$curip/" -e 's/.*\(; serial : YYYYMMDDhh\)/\t\t\t\t'"$curserial"' \1/' < /tmp/deelkar.ath.cx.zone.backup-$curserial > ${zonefiledir}/deelkar.ath.cx.zone || cp /tmp/deelkar.ath.cx.zone.backup-$curserial ${zonefiledir}/deelkar.ath.cx.zone echo "; $oldserial > $curserial : $oldip > $curip" >> ${zonefiledir}/deelkar.ath.cx.zone /etc/init.d/named reload fi echo "$curip" > /var/log/oldip echo "$curserial" > /var/log/oldserial rm -f $lckfile
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