package rdns

import (

"github.com/miekg/dns"

)

// DropResolver is a resolver that returns nil for every query which then

// causes any listeners to close the connection on the client.

type DropResolver struct {

id string

}

var _ Resolver = &DropResolver{}

// NewDropResolver returns a new instance of a DropResolver resolver.

func NewDropResolver(id string) *DropResolver {

return &DropResolver{id}

}

// Resolve a DNS query by returning nil to signal to the listener to drop this request.

func (r *DropResolver) Resolve(q *dns.Msg, ci ClientInfo) (*dns.Msg, error) {

logger(r.id, q, ci).Debug("dropping query")

return nil, nil

}

func (r *DropResolver) String() string {

return r.id

}