responder

type Answer struct {
	// Unique contains the records that belong to "unique" record sets.
	//
	// A "unique" resource record set is one where all the records with
	// that name, rrtype, and rrclass are conceptually under the control
	// or ownership of a single responder, and it is expected that at
	// most one responder should respond to a query for that name,
	// rrtype, and rrclass.
	//
	// See // https://tools.ietf.org/html/rfc6762#section-2.
	Unique ResponseSections

	// SharedScope contains the records that belong to "shared" record sets.
	//
	// A "shared" resource record set is is one where several Multicast DNS
	// responders may have records with the same name, rrtype, and
	// rrclass, and several responders may respond to a particular query.
	//
	// See // https://tools.ietf.org/html/rfc6762#section-2.
	Shared ResponseSections
}

type Answerer interface {
	// Answer populates an answer to a single DNS question.
	// The implementation must allow concurrent calls.
	Answer(context.Context, *Question, *Answer) error
}

type Option func(*Responder) error

type Question struct {
	dns.Question

	Query     *dns.Msg
	Interface net.Interface
}

type Responder struct {
	// contains filtered or unexported fields
}

type ResponseSections struct {
	AnswerSection     []dns.RR
	AuthoritySection  []dns.RR
	AdditionalSection []dns.RR
}

type UnionAnswerer []Answerer