dyndnssh-knot

#!/bin/sh

# configuration
server_address="127.0.0.1"
server_port="53"

local_address="127.0.0.1"
# local_port="1234"

zone="dyn.rockshrub.de"
origin="$zone"
# end configuration

dyndnssh_root="$(pwd)"
tmp_dir="$(mktemp -d)"

cd "$tmp_dir"

echo "server $server_address $server_port" > knsupdate.in
echo "local $local_address $local_port" >> knsupdate.in
echo "zone $zone" >> knsupdate.in
#echo "origin $origin" >> knsupdate.in

for hostname in $(ls "$dyndnssh_root/db/ip4"); do
  address="$(head -1 "$dyndnssh_root/db/ip4/$hostname")"
  echo "del $hostname.$origin A" >> knsupdate.in
  echo "add $hostname.$origin A $address" >> knsupdate.in
done

for hostname in $(ls "$dyndnssh_root/db/ip6"); do
  address="$(head -1 "$dyndnssh_root/db/ip6/$hostname")"
  echo "del $hostname.$origin AAAA" >> knsupdate.in
  echo "add $hostname.$origin AAAA $address" >> knsupdate.in
done

#echo "show" >> knsupdate.in
echo "send" >> knsupdate.in
#echo "answer" >> knsupdate.in
#cat knsupdate.in
#knsupdate -d < knsupdate.in
knsupdate < knsupdate.in

rm -rf "$tmp_dir"