[DNSOP] Re: [Ext] Revised the application for the WALLET RRTYPE

[Stephane Bortzmeyer <[e-mail]>]

On Mon, Jul 01, 2024 at 07:20:19PM +0000,
 Paul Hoffman <[e-mail]> wrote 
 a message of 8 lines which said:

> I submitted it to the RRTYPE expert reviewers, and the new
> definition is posted at
> <https://www.iana.org/assignments/dns-parameters/WALLET/wallet-completed-template>.

Are there examples in the wild? I added one (with a real Bitcoin
address, I hope to Make Money Fast) at bortzmeyer.fr. Here is a
small Python script to decode these RR (I was too lazy to patch dig).

#!/usr/bin/env python

# https://www.dnspython.org/
import dns.resolver

# Not yet known from most software. https://www.iana.org/assignments/dns-parameters/dns-parameters.xml#dns-parameters-4
WALLET = 262

def decode(wallet_rr):
    result = []
    bytes = wallet_rr.to_wire()
    index = 0
    while True:
        if index >= len(bytes):
            break
        length = int(bytes[index])
        new_index = index+length+1
        if new_index > len(bytes):
            raise Exception("Missing data at the end of the WALLET RR")
        result.append(bytes[index+1:new_index].decode())
        index = new_index
    if index != len(bytes):
        raise Exception("Extra data at the end of the WALLET RR")
    if len(result) != 2:
        raise Exception("A WALLET RR must be two and only two strings")
    return "Code: %s Address: %s" % (result[0], result[1])

answers = dns.resolver.resolve("bortzmeyer.fr", WALLET)
for rdata in answers:
    print(decode(rdata))