RFC3597

[madestro]

Hi,
I was checking your library for parsing a zone with generic representation and it seems that or I'm doing something wrong, or something is broken. If we have this code (called test-parser.go) that reads a zone file and print the RRs:

package main
import (
	"fmt"
	"os"
	"github.com/miekg/dns"
	)
func main () {

	zonefile := os.Args[1]
	fd, _ := os.Open(zonefile)
	defer fd.Close()

	zone := dns.NewZoneParser(fd,"","")

	for rr, ok := zone.Next(); ok; rr, ok = zone.Next() {
		fmt.Println(rr)
	}
}

and having this simple.zone file:

example.        86400   IN      NS      ns.example.
example.        86400   IN      SOA     ns.example. admin.example. 2018031900 18
00 900 604800 86400
ns.example.     3600    IN      A       127.0.0.1
example.     3600    IN      A       127.0.0.2

It is printed correctly with $ go run test-parser.go simple.zone

But, if I change the last line for the Hex representation using:
perl -MNet::DNS::RR -e '$rr = new Net::DNS::RR("example. 3600 IN A 127.0.0.2");print $rr->generic;'

Which gives me the simple.zone file:

example.        86400   IN      NS      ns.example.
example.        86400   IN      SOA     ns.example. admin.example. 2018031900 18
00 900 604800 86400
ns.example.     3600    IN      A       127.0.0.1
example. 3600 CLASS1 TYPE1 \# 4 7f000002

Then, running the code i will have:

$ go run test-parser.go simple.zone 
example.	86400	IN	NS	ns.example.
example.	86400	IN	SOA	ns.example. admin.example. 2018031900 1800 900 604800 86400
ns.example.	3600	IN	A	127.0.0.1

[miekg]

you're not checking errors, but that aside, we've never implemented this for records we know. Might be worth documenting that though