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- /*
- * This file is part of JSTUN.
- *
- * Copyright (c) 2005 Thomas King <king@t-king.de> - All rights
- * reserved.
- *
- * This software is licensed under either the GNU Public License (GPL),
- * or the Apache 2.0 license. Copies of both license agreements are
- * included in this distribution.
- */
-
- package de.javawi.jstun.util;
-
- import java.util.*;
- import java.net.*;
-
- public class Address {
- int firstOctet;
- int secondOctet;
- int thirdOctet;
- int fourthOctet;
-
- public Address(int firstOctet, int secondOctet, int thirdOctet, int fourthOctet) throws UtilityException {
- if ((firstOctet < 0) || (firstOctet > 255) || (secondOctet < 0) || (secondOctet > 255) || (thirdOctet < 0) || (thirdOctet > 255) || (fourthOctet < 0) || (fourthOctet > 255)) {
- throw new UtilityException("Address is malformed.");
- }
- this.firstOctet = firstOctet;
- this.secondOctet = secondOctet;
- this.thirdOctet = thirdOctet;
- this.fourthOctet = fourthOctet;
- }
-
- public Address(String address) throws UtilityException {
- StringTokenizer st = new StringTokenizer(address, ".");
- if (st.countTokens() != 4) {
- throw new UtilityException("4 octets in address string are required.");
- }
- int i = 0;
- while (st.hasMoreTokens()) {
- int temp = Integer.parseInt(st.nextToken());
- if ((temp < 0) || (temp > 255)) {
- throw new UtilityException("Address is in incorrect format.");
- }
- switch (i) {
- case 0: firstOctet = temp; ++i; break;
- case 1: secondOctet = temp; ++i; break;
- case 2: thirdOctet = temp; ++i; break;
- case 3: fourthOctet = temp; ++i; break;
- }
- }
- }
-
- public Address(byte[] address) throws UtilityException {
- if (address.length < 4) {
- throw new UtilityException("4 bytes are required.");
- }
- firstOctet = Utility.oneByteToInteger(address[0]);
- secondOctet = Utility.oneByteToInteger(address[1]);
- thirdOctet = Utility.oneByteToInteger(address[2]);
- fourthOctet = Utility.oneByteToInteger(address[3]);
- }
-
- public String toString() {
- return firstOctet + "." + secondOctet + "." + thirdOctet + "." + fourthOctet;
- }
-
- public byte[] getBytes() throws UtilityException {
- byte[] result = new byte[4];
- result[0] = Utility.integerToOneByte(firstOctet);
- result[1] = Utility.integerToOneByte(secondOctet);
- result[2] = Utility.integerToOneByte(thirdOctet);
- result[3] = Utility.integerToOneByte(fourthOctet);
- return result;
- }
-
- public InetAddress getInetAddress() throws UtilityException, UnknownHostException {
- byte[] address = new byte[4];
- address[0] = Utility.integerToOneByte(firstOctet);
- address[1] = Utility.integerToOneByte(secondOctet);
- address[2] = Utility.integerToOneByte(thirdOctet);
- address[3] = Utility.integerToOneByte(fourthOctet);
- return InetAddress.getByAddress(address);
- }
-
- public boolean equals(Object obj) {
- if (obj == null) return false;
- try {
- byte[] data1 = this.getBytes();
- byte[] data2 = ((Address) obj).getBytes();
- if ((data1[0] == data2[0]) && (data1[1] == data2[1]) &&
- (data1[2] == data2[2]) && (data1[3] == data2[3])) return true;
- return false;
- } catch (UtilityException ue) {
- return false;
- }
- }
-
- public int hashCode() {
- return (firstOctet << 24) + (secondOctet << 16) + (thirdOctet << 8) + fourthOctet;
- }
-
- }
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