#!/bin/bash
#
#/var/tmp/named_dump.db
#kill -SIGINT `ps axf | grep named | grep -v grep | awk '{print $1}'`
#Suck data out of PTR records too?


NAMECACHE="/tmp/morehosts"
DEBUG="YES"

isdigits () {
#up to 10 digits.  1998012502
	case $1 in
	[0-9]|[0-9][0-9]|[0-9][0-9][0-9]|[0-9][0-9][0-9][0-9]|[0-9][0-9][0-9][0-9][0-9]|[0-9][0-9][0-9][0-9][0-9][0-9]|[0-9][0-9][0-9][0-9][0-9][0-9][0-9]|[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]|[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9])
		return 0				;;	#True
	[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9])
		return 0				;;	#True
	*)
		return 1				;;	#False
	esac
}



CURRORIGIN=""
CURROBJ=""

unset F1 F2 F3 F4 F5 F6 F7 
read  F1 F2 F3 F4 F5 F6 F7

while [ -n "${F1}" ]; do
    case "${F1}" in
    "\$ORIGIN")				#Change origin
#	CURRORIGIN=`echo ${F2} | sed -e 's/\.$//'`
	CURRORIGIN=${F2%.}
#FIXME - should we clear CURROBJ here?
	;;
    ";"|";;")				#Comment, ignore
#FIXME - lines that start w/ semicolon immediately followed by some other char.
	;;

    *)					#Real DNS record
	case "${F3} ${F4}" in
	"IN A")
	    if isdigits ${F2} ; then
		echo -e "${F5}\t${F1}.${CURRORIGIN}" >>${NAMECACHE}
		CURROBJ=${F1}
		if [ "${DEBUG}" = "YES" ]; then echo -e "${CURROBJ}\t${CURRORIGIN}"; fi
	    else
		echo -e "unrecognized: ${F1}\t${F2}\t${F3}\t${F4}"
	    fi
	    ;;
	"IN CNAME")	#FIXME - suck A records out, if possible, and insert
	    if isdigits ${F2} ; then
		CURROBJ=${F1}
		if [ "${DEBUG}" = "YES" ]; then echo -e "${CURROBJ}\t${CURRORIGIN}"; fi
	    else
		echo -e "unrecognized: ${F1}\t${F2}\t${F3}\t${F4}"
	    fi
	    ;;
	"IN AAAA"|"IN HINFO"|"IN MX"|"IN NS"|"IN PTR"|"IN RP"|"IN SOA"|"IN TXT"|"IN WKS")
	    if isdigits ${F2} ; then
		CURROBJ=${F1}
		if [ "${DEBUG}" = "YES" ]; then echo -e "${CURROBJ}\t${CURRORIGIN}"; fi
	    else
		echo -e "unrecognized: ${F1}\t${F2}\t${F3}\t${F4}"
	    fi
	    ;;
	*)
	    case "${F2} ${F3}" in
	    "IN A")
		if isdigits ${F1} ; then
		    echo -e "${F4}\t${CURROBJ}.${CURRORIGIN}" >>${NAMECACHE}
		else
		    echo -e "${F4}\t${F1}.${CURRORIGIN}" >>${NAMECACHE}
		    CURROBJ=${F1}
		    if [ "${DEBUG}" = "YES" ]; then echo -e "${CURROBJ}\t${CURRORIGIN}"; fi
		fi
		;;
	    "IN CNAME")	#FIXME - suck A records out, if possible, and insert
		if isdigits ${F1} ; then
		    echo "NADA" >/dev/null
		else
		    CURROBJ=${F1}
		    if [ "${DEBUG}" = "YES" ]; then echo -e "${CURROBJ}\t${CURRORIGIN}"; fi
		fi
		;;
	    "IN AAAA"|"IN HINFO"|"IN MX"|"IN NS"|"IN PTR"|"IN RP"|"IN SOA"|"IN TXT"|"IN WKS")
		if ! isdigits ${F1} ; then
		    CURROBJ=${F1}
		    if [ "${DEBUG}" = "YES" ]; then echo -e "${CURROBJ}\t${CURRORIGIN}"; fi
		fi
		;;
	    *)
		case "${F1} ${F2}" in
		"IN A")
		    echo -e "${F3}\t${CURROBJ}.${CURRORIGIN}" >>${NAMECACHE}
		    ;;
		"IN CNAME")	#FIXME - suck A records out, if possible, and insert
		    ;;
		"IN AAAA"|"IN HINFO"|"IN MX"|"IN NS"|"IN PTR"|"IN RP"|"IN SOA"|"IN TXT"|"IN WKS")
		    ;;
		*)
		    if isdigits ${F1} && isdigits ${F2} && isdigits ${F3} && isdigits ${F4} ; then
			if [ "${F6}" = ")" -o "${F7}" = ")" ]; then
			    echo "NADA" >/dev/null
			    #echo -e "\t\t\t\tnumbers"
			else
			    echo -e unrecognized line:
 			    echo -e "${F1}\t${F2}\t${F3}\t${F4}\t${F5}\t${F6}\t${F7}"
			fi
		    else
			echo -e "unrecognized: ${F1}\t${F2}\t${F3}\t${F4}"
		    fi
		    ;;
	        esac
		;;
	    esac
	    ;;
	esac
	;;
    esac

    unset F1 F2 F3 F4 F5 F6 F7
    read  F1 F2 F3 F4 F5 F6 F7
done