migrating from djb tinydns (qmail suite) to bind - scripting

[DT]

Hello,
If someone interested, here's a script,
which parses tinydns "data" file, and outputs
set of bind zone files, including named.conf
"zone" statements

#!/bin/bash
#
#http://www.ripe.net/ripe/maillists/archives/dns-wg/2005/msg00310.html
#It is recommended to take note of these values, in order to restore
this
#configuration after the migration process is completed. Suggested
values
#for this field depend of the load of the servers, how critical the
#services are, and if they can be duplicated. If some of them can be
#duplicated and/or are not critical, the values can be relaxed.
#Field          Old value       New value without dupl. New value with
dupl.
#Serial number  X               X+1                     X+1
#Refresh        86400           300                     14400
#Retry          7200            150                     (=)7200
#Expire         2592000         (=)2592000              (=)2592000
#TTL            172800          300                     14400
#
#
#script takes tinydns data file (between-domains separator is three
lines),

#
##--------------------(domain.com)-------------------------------------------
#

#then it separates each domain into file named as current record
#numer (NR), and then each file is parsed and saved as bind zone file
#finally, zone statement is added to config file, which may be included
#in bind configuration. generated splitted files are removed.

echo "START: $(date)"
for zonefile in `ls|egrep '^[0-9]+$'|sort -n`; do rm $zonefile; done

TINYDNSDATAFILE="/service/tinydns/root/data"
awk 'BEGIN { RS = "##"; ORS = "" } { print RS$0 >> NR }'
$TINYDNSDATAFILE

CURRDATE=`date +%Y%m%d`
CURRCONF=named.conf.master
rm $CURRCONF 2>/dev/null

for zonefile in `ls|egrep '^[0-9]+$'|sort -n`; do
        if ( grep "##-.*--$" $zonefile 2>&1 >> /dev/null); then
        CURRDOMNAME=`echo $(egrep "##--.*\(" $zonefile)| sed -e
's/^.*(//g'| sed -e 's/).*$//g'`;
        CURRFILENAME=db.$CURRDOMNAME
        rm db.$CURRDOMNAME 2>/dev/null

        for i in "Z" "&" "@" "S" "+" "X";
        do
                case $i in
                        "Z")

#Zdomain.com:genhost.com.:dnsadmin.foo.com.:2006022201:3600:864:7200:3600
                                ZLINE=`grep ^Z $zonefile|cut -d'Z'
-f2-`
                                MASTER=`echo $ZLINE|cut -d':' -f2`
                                ADMIN=`echo $ZLINE|cut -d':' -f3`
                                echo -e ";" >> $CURRFILENAME
                                echo -e ";; BIND data file" >>
$CURRFILENAME
                                echo -e ";" >> $CURRFILENAME
                                echo -e "\$TTL  300" >> $CURRFILENAME
                                echo -e "@     IN      SOA     $MASTER
$ADMIN (" >> $CURRFILENAME
                                echo -e "
$CURRDATE"05"  ; Serial" >> $CURRFILENAME
                                echo -e "
 300    ; Refresh" >> $CURRFILENAME
                                echo -e "
 150    ; Retry" >> $CURRFILENAME
                                echo -e "
 614440 ; Expire" >> $CURRFILENAME
                                echo -e "
 300 ); Negative Cache TTL" >> $CURRFILENAME
                                echo -e ";" >> $CURRFILENAME
                                echo "\$ORIGIN $CURRDOMNAME." >>
$CURRFILENAME
                                ;;
                        "&")
                                COUNTER=0
                                #handling ns records, firstline is
considered master - @ at the line start
                                #&domain.com::ns.server.name.com
                                for nsname in `grep '^&'$CURRDOMNAME
$zonefile|cut -d'&' -f2|cut -d':' -f3`; do
                                COUNTER=`expr $COUNTER + 1`
                                if ( [ $COUNTER -le 1 ]);
                                        then echo "@            IN
NS      $nsname"  >> $CURRFILENAME
                                        else
                                        echo "          IN      NS
$nsname"  >> $CURRFILENAME
                                fi

                                done
                                ;;
                        "@")
                                #handling MX records with priority
(last field)
                                #@domain.com::mx.server.name.coml.:2
                                for mxline in `grep '^@' $zonefile|cut
-d'@' -f2`; do
                                        MXNAME=`echo $mxline|cut -d':'
-f3`
                                        MXPRIORITY=`echo $mxline|cut
-d':' -f4`
                                        echo "          IN      MX
$MXPRIORITY $MXNAME"  >> $CURRFILENAME
                                done
                                ;;
                        "+")
                                #handling A records
                                for aline in `grep '^\+' $zonefile|cut
-d'+' -f2`; do
                                        ANAME=`echo $aline|cut -d':'
-f1`.
                                        AIP=`echo $aline|cut -d':' -f2`
                                        echo "$ANAME            IN
A       $AIP"  >> $CURRFILENAME
                                done

                                ;;
                        "X")
                               #handling zone statements for domain
                                echo "zone \"$CURRDOMNAME\" {" >>
$CURRCONF
                                echo "  type master;" >> $CURRCONF
                                echo "  zone-statistics yes;" >>
$CURRCONF
                                echo "  file
\"/etc/bind/master/db.$CURRDOMNAME\";" >> $CURRCONF
                                echo "};" >> $CURRCONF
                                ;;
                        "S")
                                #handling delegated subdomains

#&domain.com::this.subdomain.nsserver.com
                                for nsdlgline in `grep '^&'
$zonefile|grep -v '^&'$CURRDOMNAME |cut -d'&' -f2-`; do
                                        CURRDLGDOM=`echo $nsdlgline|cut
-d':' -f1`
                                        CURRDLGNS=`echo $nsdlgline|cut
-d':' -f3`
                                        echo "$CURRDLGDOM.      IN
NS      $CURRDLGNS"  >> $CURRFILENAME
                                done
                                ;;
                esac;
        done;
        fi
done

for zonefile in `ls|egrep '^[0-9]+$'|sort -n`; do rm $zonefile; done

for moved in `cat moved-domains 2>/dev/null`; do
        echo "zone \"$moved\" {" >> $CURRCONF
        echo "  type forward;" >> $CURRCONF
        echo "  forward only;" >> $CURRCONF
        echo "  forwarders { 217.153.189.162; };" >> $CURRCONF
        echo "};" >> $CURRCONF
done

That's all folks :)
Regards,
DT <pwadas at jewish.org.pl>