/*
* File : PRHelpers.java
* Created : 10-Mar-2004
* By : parg
*
* Azureus - a Java Bittorrent client
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details ( see the LICENSE file ).
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.gudy.azureus2.core3.tracker.protocol;
/**
* @author parg
*
*/
import java.net.*;
import org.gudy.azureus2.core3.util.*;
public class
PRHelpers
{
public static int
addressToInt(
String address )
throws UnknownHostException
{
InetAddress i_address = HostNameToIPResolver.syncResolve(address);
byte[] bytes = i_address.getAddress();
int resp = (bytes[0]<<24)&0xff000000 | (bytes[1] << 16)&0x00ff0000 | (bytes[2] << 8)&0x0000ff00 | bytes[3]&0x000000ff;
// System.out.println( "addressToInt: " + address + " -> " + Integer.toHexString(resp));
return( resp );
}
public static int
addressToInt(
InetAddress i_address )
{
byte[] bytes = i_address.getAddress();
int resp = (bytes[0]<<24)&0xff000000 | (bytes[1] << 16)&0x00ff0000 | (bytes[2] << 8)&0x0000ff00 | bytes[3]&0x000000ff;
// System.out.println( "addressToInt: " + address + " -> " + Integer.toHexString(resp));
return( resp );
}
public static long
addressToLong(
InetAddress i_address )
{
return(((long)addressToInt( i_address ))&0xffffffffL);
}
public static String
intToAddress(
int value )
{
byte[] bytes = { (byte)(value>>24), (byte)(value>>16),(byte)(value>>8),(byte)value };
try{
String res = InetAddress.getByAddress(bytes).getHostAddress();
// System.out.println( "intToAddress: " + Integer.toHexString(value) + " -> " + res );
return( res );
}catch( UnknownHostException e ){
// should never get here as always valid byte array (4 long)
Debug.printStackTrace(e);
return( null );
}
}
public static void
addressTo4ByteArray(
String address,
byte[] buffer,
int offset )
throws UnknownHostException
{
InetAddress i_address = HostNameToIPResolver.syncResolve(address);
byte[] bytes = i_address.getAddress();
System.arraycopy( bytes, 0, buffer, offset, 4 );
}
public static String
DNSToIPAddress(
String dns_name )
throws UnknownHostException
{
return( HostNameToIPResolver.syncResolve(dns_name).getHostAddress());
}
}