Simplified java binding example
This commit is contained in:
Joseph Henry
110
examples/bindings/java/zerotier/Address.java
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110
examples/bindings/java/zerotier/Address.java
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/*
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* ZeroTier SDK - Network Virtualization Everywhere
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* Copyright (C) 2011-2017 ZeroTier, Inc. https://www.zerotier.com/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* You can be released from the requirements of the license by purchasing
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* a commercial license. Buying such a license is mandatory as soon as you
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* develop commercial closed-source software that incorporates or links
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* directly against ZeroTier software without disclosing the source code
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* of your own application.
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*/
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package zerotier;
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import java.math.BigInteger;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.UnknownHostException;
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import java.util.regex.Pattern;
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/*
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The ZTAddress object is merely a convenience object for moving address information
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across the JNI memory border.
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*/
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public class Address
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{
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// int -> byte array
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static public byte[] toIPByteArray(long addr){
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return new byte[]{(byte)addr,(byte)(addr>>>8),(byte)(addr>>>16),(byte)(addr>>>24)};
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}
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// byte array -> int
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long toIPInt(String _addr) {
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long result = 0;
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for(String part: _addr.split(Pattern.quote("."))) {
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result = result << 8;
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result |= Integer.parseInt(part);
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}
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return result;
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}
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public int port;
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public int Port() {
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return port;
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}
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public long _rawAddr;
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public String Address()
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{
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try {
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return InetAddress.getByAddress(toIPByteArray(_rawAddr)).getHostAddress();
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} catch (UnknownHostException e) {
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// should never happen
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return null;
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}
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}
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public String toString() {
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return Address() + ":" + Port();
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}
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public Address()
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{
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port = -1;
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_rawAddr = -1;
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}
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public Address(String _addr, int _port)
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{
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_rawAddr = toIPInt(_addr);
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port = _port;
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}
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public void ZTAddress(InetSocketAddress ins)
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{
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port = ins.getPort();
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_rawAddr = toIPInt(ins.getAddress().getHostAddress());
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}
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public InetSocketAddress ToInetSocketAddress() throws IllegalArgumentException {
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InetSocketAddress sock_addr = null;
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try {
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sock_addr = new InetSocketAddress(Address(), port);
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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}
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return sock_addr;
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}
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public boolean isValid() {
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return port != -1 && !Address().startsWith("-1.-1.-1.-1/-1");
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}
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}
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197
examples/bindings/java/zerotier/ZeroTier.java
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197
examples/bindings/java/zerotier/ZeroTier.java
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/*
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* ZeroTier SDK - Network Virtualization Everywhere
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* Copyright (C) 2011-2017 ZeroTier, Inc. https://www.zerotier.com/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* You can be released from the requirements of the license by purchasing
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* a commercial license. Buying such a license is mandatory as soon as you
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* develop commercial closed-source software that incorporates or links
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* directly against ZeroTier software without disclosing the source code
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* of your own application.
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*/
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package zerotier;
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//import zerotier.*;
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import java.io.FileDescriptor;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.util.ArrayList;
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import java.util.zip.ZipError;
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public class ZeroTier {
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public static String Version() {
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return "1.1.5";
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}
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// Socket families
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public static int AF_UNIX = 1;
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public static int AF_INET = 2;
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// Socket types
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public static int SOCK_STREAM = 1;
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public static int SOCK_DGRAM = 2;
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// fcntl flags
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public static int O_APPEND = 1024;
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public static int O_NONBLOCK = 2048;
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public static int O_ASYNC = 8192;
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public static int O_DIRECT = 65536;
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public static int O_NOATIME = 262144;
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// fcntl cmds
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public static int F_GETFL = 3;
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public static int F_SETFL = 4;
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// Loads JNI code
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//static { System.loadLibrary("zt"); }
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// ZeroTier service controls
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public native void ztjni_start(String homeDir);
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public void start(String homeDir) { ztjni_start(homeDir); }
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public native void ztjni_startjoin(String homeDir, String nwid);
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public void startjoin(String homeDir, String nwid) { ztjni_startjoin(homeDir, nwid); }
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public native void ztjni_join(String nwid);
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public void join(String nwid) {
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ztjni_join(nwid);
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}
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public native void ztjni_leave(String nwid);
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public void leave(String nwid) {
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ztjni_leave(nwid);
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}
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public native ArrayList<String> ztjni_get_addresses(String nwid);
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public ArrayList<String> get_addresses(String nwid) {
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int err = -1;
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ArrayList<String> addresses;
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while (err < 0) {
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try {
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Thread.sleep(100);
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} catch (InterruptedException e) {
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}
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addresses = ztjni_get_addresses(nwid);
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if (addresses.size() > 0) {
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return addresses;
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}
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}
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return null;
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}
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public native boolean ztjni_running();
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public boolean running() { return ztjni_running(); }
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public native int ztjni_socket(int family, int type, int protocol);
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public int socket(int family, int type, int protocol) { return ztjni_socket(family, type, protocol); }
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public native int ztjni_connect(int fd, String addr, int port);
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public int connect(int sock, Address zaddr, String nwid) { return connect(sock, zaddr.Address(), zaddr.Port(), nwid); }
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public int connect(int sock, String addr, int port, String nwid)
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{
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int err = -1;
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ArrayList<String> addresses;
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while (err < 0) {
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try {
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Thread.sleep(100);
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} catch (InterruptedException e) {
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}
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addresses = ztjni_get_addresses(nwid);
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if (addresses.size() > 0) {
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if(!addresses.get(0).startsWith("-1.-1.-1.-1/-1")) {
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err = ztjni_connect(sock, addr, port);
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}
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}
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}
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return err;
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}
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public native int ztjni_bind(int fd, String addr, int port);
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public int bind(int sock, Address zaddr, String nwid) { return bind(sock, zaddr.Address(), zaddr.Port(), nwid); }
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public int bind(int sock, String addr, int port, String nwid) {
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int err = -1;
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ArrayList<String> addresses;
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while (err < 0) {
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try {
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Thread.sleep(100);
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} catch (InterruptedException e) {
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}
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addresses = ztjni_get_addresses(nwid);
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if (addresses.size() > 0) {
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if(!addresses.get(0).startsWith("-1.-1.-1.-1/-1")) {
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err = ztjni_bind(sock, addr, port);
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}
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}
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}
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return err;
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}
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public native int ztjni_accept4(int fd, String addr, int port);
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public int accept4(int fd, String addr, int port) {
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return ztjni_accept4(fd,addr,port);
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}
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public native int ztjni_accept(int fd, Address addr);
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public int accept(int fd, Address addr) {
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return ztjni_accept(fd, addr);
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}
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public native int ztjni_listen(int fd, int backlog);
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public int listen(int fd, int backlog) {
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return ztjni_listen(fd,backlog);
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}
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public native int ztjni_close(int fd);
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public int close(int fd) {
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return ztjni_close(fd);
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}
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public native int ztjni_read(int fd, byte[] buf, int len);
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public int read(int fd, byte[] buf, int len) {
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return ztjni_read(fd, buf, len);
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}
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public native int ztjni_write(int fd, byte[] buf, int len);
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public int write(int fd, byte[] buf, int len) {
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return ztjni_write(fd, buf, len);
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}
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public native int ztjni_sendto(int fd, byte[] buf, int len, int flags, Address addr);
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public int sendto(int fd, byte[] buf, int len, int flags, Address addr){
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return ztjni_sendto(fd,buf,len,flags,addr);
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}
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public native int ztjni_send(int fd, byte[] buf, int len, int flags);
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public int send(int fd, byte[] buf, int len, int flags) {
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return ztjni_send(fd, buf, len, flags);
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}
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public native int ztjni_recvfrom(int fd, byte[] buf, int len, int flags, Address addr);
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public int recvfrom(int fd, byte[] buf, int len, int flags, Address addr){
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return ztjni_recvfrom(fd,buf,len,flags,addr);
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}
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public native int ztjni_fcntl(int sock, int cmd, int flag);
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public int fcntl(int sock, int cmd, int flag) {
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return ztjni_fcntl(sock, F_SETFL, O_NONBLOCK);
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}
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}
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