changed add_dom to not even bother with anything head -c -1 related. should still work. added a comment at the top of dec2hex to suggest a shorter version that should work. added a script for generating zonefiles for bind

#!/bin/sh

if [ x"$2" = x ]; then
 echo "Usage: $0 <ASN> <owner>" >&2; exit 255
fi

mkdir db/as/$1 || exit 1
echo $2 > db/as/$1/owner