Add configurable feature to synthesize 127.0.0.1, ::1 and localhost responses to minidns-hla

[dmajirsky]

I'm using your HLA for a reverse lookup of 127.0.0.1
ResolverApi.INSTANCE.reverseLookup("127.0.0.1");

I would expect the result to be "localhost", or the FQDN of my machine. Minidns responds with NX_DOMAIN.

Is this behavior correct? Why does minidns respond with NX_DOMAIN instead of resolving localhost?

[Flowdalic]

Why does minidns respond with NX_DOMAIN instead of resolving localhost?

Because there are no resource records for 127.0.0.1, ::1, or localhost in the domain name system. Those are usually synthesized by the resolver.

I can see how this can be surprising behavior for MiniDNS's high-level API (minidns-hla). I'll probably add a configurable feature to synthesize the responses to it.