Convert any DNS record to generic RFC3597 syntax

to3597.go

// Reads DNS records in zone file format on stdin and outputs them in generic
// RFC3597 format. This is useful if you need to configure DNS records for a
// nameserver which doesn't support the rrtypes you're trying to configure.
//
// Supports whatever rrtypes that github.com/miekg/dns supports, which tends to
// be pretty exhaustive.
package main

import (
	"fmt"
	"github.com/hlandau/xlog"
	"github.com/miekg/dns"
	"os"
)

var log, Log = xlog.New("to3597")

func main() {
	tokCh := dns.ParseZone(os.Stdin, ".", "stdin")
	for tok := range tokCh {
		if tok.Error != nil {
			log.Fatale(tok.Error, "parse error")
		}

		if tok.RR == nil {
			continue
		}

		genRR := dns.RFC3597{}
		err := genRR.ToRFC3597(tok.RR)
		if err != nil {
			log.Errore(err, "convert to RFC3597")
		}

		fmt.Printf("%s\n", genRR.String())
	}
}