Quoting of empty TXT records

[patrick1024]

Hi,

I'm not sure if this is a bug, but it is at least a different behaviour of creating empty TXT records while using the TXTRecord constructor or the static method fromString of Record:

        Record r0 = Record.fromString(recordName, Type.TXT, DClass.IN, 0, "", zoneName);
        TXTRecord r1 = new TXTRecord(recordName, DClass.IN, 0, "");
        System.out.println("r0: " + r0);
        System.out.println("r1: " + r1);

The output of this code snippet is:

r0: name.name.		0	IN	TXT
r1: name.name.		0	IN	TXT	""

BIND and PowerDNS servers are not able to load records with representation r0.

Patrick

[ibauersachs]

Yes, that's a bug. Thanks for the report!

[nresare]

Having a look at this, the difference between the two is that r0 is a TXTRecord with the field strings holding an empty list whereas strings list in r1 holds a single item (a zero size byte array).

I created a PR to ensure TXTBase.rrToString() always returns at least an empty quoted string, #256

[nresare]

A fix to this issue was merged into the release/3.5.x branch yesterday. Can you confirm that the change resolves your issue @patrick1024 ?

[patrick1024]

Yes, the change resolves my issue. Thanks @nresare