util/dns.go

@@ -2,55 +2,13 @@ package util
 
 import (
 	"encoding/base64"
-	"errors"
 	"fmt"
 	"io"
-	"net"
 	"net/http"
-	"strings"
-	"time"
 
-	"github.com/c-robinson/iplib"
 	"github.com/miekg/dns"
 )
 
-type Response struct {
-	Answers Answers `json:"Response"` //
-}
-
-// The Answers struct is the basic structure of a DNS request
-// to be returned to the user upon making a request
-type Answers struct {
-	Server  string        `json:"Server"`  // The server to make the DNS request from
-	Request uint16        `json:"Request"` // The type of request
-	Name    string        `json:"Name"`    // The domain name to make a DNS request for
-	RTT     time.Duration `json:"RTT"`     // When AWL was ran
-}
-
-func ReverseDNS(dom string, q string) (string, error) {
-	if q == "PTR" {
-		if strings.Contains(dom, ".") {
-			// It's an IPv4 address
-			ip := net.ParseIP(dom)
-			if ip != nil {
-				return iplib.IP4ToARPA(ip), nil
-			} else {
-				return "", errors.New("error: Could not parse IPv4 address")
-			}
-
-		} else if strings.Contains(dom, ":") {
-			// It's an IPv6 address
-			ip := net.ParseIP(dom)
-			if ip != nil {
-				return iplib.IP6ToARPA(ip), nil
-			} else {
-				return "", errors.New("error: Could not parse IPv6 address")
-			}
-		}
-	}
-	return "", errors.New("error: -x flag given but no IP found")
-}
-
 func ResolveHTTPS(msg *dns.Msg, server string) (*dns.Msg, error) {
 	httpR := &http.Client{}
 	buf, err := msg.Pack()