Accept a DNS-over-TCP socket from a stub resolver, and connect the socket to this DNSTransport.

Add EDNS padding, as defined in RFC7830, to a raw DNS message.

NewTransport returns a DoH DNSTransport, ready for use.

Servfail returns a SERVFAIL response to the query q.

BadQuery : Malformed input.

BadResponse : Response was invalid.

Complete : Transaction completed successfully.

HTTPError : Got a non-200 HTTP status.

InternalError : This should never happen.

RFC8467 recommendation.

SendFailed : Failed to send query.

Atomic is atomic.Value, specialized for doh.Transport.

Summary is a summary of a DNS transaction, reported when it is complete.

ClientAuth interface for providing TLS certificates and signatures.

Listener receives Summaries.

A Token is an opaque handle used to match responses to queries.

Transport represents a DNS query transport.