001/* 002 * Copyright 2015-2020 the original author or authors 003 * 004 * This software is licensed under the Apache License, Version 2.0, 005 * the GNU Lesser General Public License version 2 or later ("LGPL") 006 * and the WTFPL. 007 * You may choose either license to govern your use of this software only 008 * upon the condition that you accept all of the terms of either 009 * the Apache License 2.0, the LGPL 2.1+ or the WTFPL. 010 */ 011package org.minidns.record; 012 013import java.io.DataInputStream; 014import java.io.IOException; 015import java.net.Inet6Address; 016 017import org.minidns.record.Record.TYPE; 018import org.minidns.util.InetAddressUtil; 019 020/** 021 * AAAA payload (an ipv6 pointer). 022 */ 023public class AAAA extends InternetAddressRR<Inet6Address> { 024 025 @Override 026 public TYPE getType() { 027 return TYPE.AAAA; 028 } 029 030 public AAAA(Inet6Address inet6address) { 031 super(inet6address); 032 assert ip.length == 16; 033 } 034 035 public AAAA(byte[] ip) { 036 super(ip); 037 if (ip.length != 16) { 038 throw new IllegalArgumentException("IPv6 address in AAAA record is always 16 byte"); 039 } 040 } 041 042 public AAAA(CharSequence ipv6CharSequence) { 043 this(InetAddressUtil.ipv6From(ipv6CharSequence)); 044 } 045 046 public static AAAA parse(DataInputStream dis) 047 throws IOException { 048 byte[] ip = new byte[16]; 049 dis.readFully(ip); 050 return new AAAA(ip); 051 } 052 053 @Override 054 public String toString() { 055 StringBuilder sb = new StringBuilder(); 056 for (int i = 0; i < ip.length; i += 2) { 057 if (i != 0) { 058 sb.append(':'); 059 } 060 sb.append(Integer.toHexString( 061 ((ip[i] & 0xff) << 8) + (ip[i + 1] & 0xff) 062 )); 063 } 064 return sb.toString(); 065 } 066 067}