split_origins

#!/bin/ksh
#Split origins from a file zone to other independent zone files
#Los hombres de verdad hacen cambios en el dns sin chequear las zonas recien creadas, echale huevos mamon
z=1
ZONE_FILE=$1
EXEC_DIR=$(dirname $0)
EXEC_NAME=$(basename $0)
##Sustituir por los propios de la zona a tratar
AUTHORITATIVE1=calatayud.aragon.es.
AUTHORITATIVE2=root.calatayud.aragon.es.
#AUTHORITATIVE3
#AUTHORITATIVE4
EXEC_FULL=${EXEC_DIR}/${EXEC_NAME}
EXEC_TEMP_DIR=${EXEC_DIR}/${EXEC_NAME}.dir
TEMPFILE=${EXEC_FULL}.tmp


SERIAL=$(echo $(date  +%Y%m%d)40)

gen_heading(){
cat <<EOF
;/var/namedb/db.$ORIG_1
;\$TTL 14400
\$TTL 300
$ORIG_1      IN      SOA     $AUTHORITATIVE1 $AUTHORITATIVE2 (
                        $SERIAL
                        300
                        7200
                        1209600
                        86400 )
;

EOF



}

##Format it to a standard, we'll undo it later
cat $ZONE_FILE | tr -s "\t" " " > $TEMPFILE
##Add a space in the end to make sure we dont cut a record in the last origin
echo >> $TEMPFILE

NUM_ORIGS=$(grep ^\$ORIGIN $TEMPFILE | cut -f 2 -d " " | tr "\n" " " | wc -w)
ALL_ORIGS=$(grep ^\$ORIGIN $TEMPFILE | cut -f 2 -d " " | tr "\n" " "| sed 's/$ORIGIN//g')
FIRST_ORIG=$(grep ^\$ORIGIN $TEMPFILE | cut -f 2 -d " " | tr "\n" " "| sed 's/$ORIGIN//g' | cut -f 1 -d " ")

ZONE_ROOT=$(grep "IN.*SOA" $TEMPFILE | awk '{print$1}')

mkdir $ZONE_ROOT
sed -n '/^;/,/^$ORIGIN/p;/^$ORIGIN/q' $TEMPFILE | head -n -1 > $ZONE_ROOT/db.$ZONE_ROOT

until [ $z -gt $NUM_ORIGS ]; do

ORIG_1=$(echo $ALL_ORIGS |cut -f $z -d " ")
ORIG_2=$(echo $ALL_ORIGS |cut -f $(expr $z + 1) -d " ")

sed -n "/ORIGIN $ORIG_1/,/ORIGIN $ORIG_2/p" $TEMPFILE > $ZONE_ROOT/db.$ORIG_1

#sed -n "/^\$ORIGIN $ORIG_1/,/^\$ORIGIN $ORIG_2/p;/^\$ORIGIN $ORIG_2/q" $TEMPFILE 

if [ $z -le $NUM_ORIGS ]; then
	head -n -1 $ZONE_ROOT/db.$ORIG_1 > asdf
	gen_heading > $ZONE_ROOT/db.$ORIG_1
	tail -n +2 asdf >> $ZONE_ROOT/db.$ORIG_1
fi
z=$(($z+1))
done

rm -f $TEMPFILE