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zhangyang-libzt/examples/bindings/java/zerotier/Address.java

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Java

/*
* ZeroTier SDK - Network Virtualization Everywhere
* Copyright (C) 2011-2017 ZeroTier, Inc. https://www.zerotier.com/
*
* 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 3 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
*/
package zerotier;
import java.math.BigInteger;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import java.util.regex.Pattern;
/*
The ZTAddress object is merely a convenience object for moving address information
across the JNI memory border.
*/
public class Address
{
// int -> byte array
static public byte[] toIPByteArray(long addr){
return new byte[]{(byte)addr,(byte)(addr>>>8),(byte)(addr>>>16),(byte)(addr>>>24)};
}
// byte array -> int
long toIPInt(String _addr) {
long result = 0;
for(String part: _addr.split(Pattern.quote("."))) {
result = result << 8;
result |= Integer.parseInt(part);
}
return result;
}
public int port;
public int Port() {
return port;
}
public long _rawAddr;
public String Address()
{
try {
return InetAddress.getByAddress(toIPByteArray(_rawAddr)).getHostAddress();
} catch (UnknownHostException e) {
// should never happen
return null;
}
}
public String toString() {
return Address() + ":" + Port();
}
public Address()
{
port = -1;
_rawAddr = -1;
}
public Address(String _addr, int _port)
{
_rawAddr = toIPInt(_addr);
port = _port;
}
public void ZTAddress(InetSocketAddress ins)
{
port = ins.getPort();
_rawAddr = toIPInt(ins.getAddress().getHostAddress());
}
public InetSocketAddress ToInetSocketAddress() throws IllegalArgumentException {
InetSocketAddress sock_addr = null;
try {
sock_addr = new InetSocketAddress(Address(), port);
} catch (IllegalArgumentException e) {
e.printStackTrace();
}
return sock_addr;
}
}