| /* |
| * Copyright (c) 2000, 2021, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.nio.ch; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.Socket; |
| import java.net.SocketAddress; |
| import java.net.SocketException; |
| import java.net.SocketOption; |
| import java.net.StandardSocketOptions; |
| import java.nio.channels.SocketChannel; |
| import java.security.AccessController; |
| import java.security.PrivilegedActionException; |
| import java.security.PrivilegedExceptionAction; |
| import java.util.Set; |
| |
| import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| |
| // Make a socket channel look like a socket. |
| // |
| // The methods in this class are defined in exactly the same order as in |
| // java.net.Socket so as to simplify tracking future changes to that class. |
| // |
| |
| class SocketAdaptor |
| extends Socket |
| { |
| // The channel being adapted |
| private final SocketChannelImpl sc; |
| |
| // Timeout "option" value for reads |
| private volatile int timeout; |
| |
| private SocketAdaptor(SocketChannelImpl sc) throws SocketException { |
| super(DummySocketImpl.create()); |
| this.sc = sc; |
| } |
| |
| @SuppressWarnings("removal") |
| static Socket create(SocketChannelImpl sc) { |
| PrivilegedExceptionAction<Socket> pa = () -> new SocketAdaptor(sc); |
| try { |
| return AccessController.doPrivileged(pa); |
| } catch (PrivilegedActionException pae) { |
| throw new InternalError("Should not reach here", pae); |
| } |
| } |
| |
| private InetSocketAddress localAddress() { |
| return (InetSocketAddress) sc.localAddress(); |
| } |
| |
| private InetSocketAddress remoteAddress() { |
| return (InetSocketAddress) sc.remoteAddress(); |
| } |
| |
| @Override |
| public void connect(SocketAddress remote) throws IOException { |
| connect(remote, 0); |
| } |
| |
| @Override |
| public void connect(SocketAddress remote, int timeout) throws IOException { |
| if (remote == null) |
| throw new IllegalArgumentException("connect: The address can't be null"); |
| if (timeout < 0) |
| throw new IllegalArgumentException("connect: timeout can't be negative"); |
| try { |
| if (timeout > 0) { |
| long nanos = MILLISECONDS.toNanos(timeout); |
| sc.blockingConnect(remote, nanos); |
| } else { |
| sc.blockingConnect(remote, Long.MAX_VALUE); |
| } |
| } catch (Exception e) { |
| Net.translateException(e, true); |
| } |
| } |
| |
| @Override |
| public void bind(SocketAddress local) throws IOException { |
| try { |
| sc.bind(local); |
| } catch (Exception x) { |
| Net.translateException(x); |
| } |
| } |
| |
| @Override |
| public InetAddress getInetAddress() { |
| InetSocketAddress remote = remoteAddress(); |
| if (remote == null) { |
| return null; |
| } else { |
| return remote.getAddress(); |
| } |
| } |
| |
| @Override |
| public InetAddress getLocalAddress() { |
| if (sc.isOpen()) { |
| InetSocketAddress local = localAddress(); |
| if (local != null) { |
| return Net.getRevealedLocalAddress(local).getAddress(); |
| } |
| } |
| return new InetSocketAddress(0).getAddress(); |
| } |
| |
| @Override |
| public int getPort() { |
| InetSocketAddress remote = remoteAddress(); |
| if (remote == null) { |
| return 0; |
| } else { |
| return remote.getPort(); |
| } |
| } |
| |
| @Override |
| public int getLocalPort() { |
| InetSocketAddress local = localAddress(); |
| if (local == null) { |
| return -1; |
| } else { |
| return local.getPort(); |
| } |
| } |
| |
| @Override |
| public SocketAddress getRemoteSocketAddress() { |
| return sc.remoteAddress(); |
| } |
| |
| @Override |
| public SocketAddress getLocalSocketAddress() { |
| return Net.getRevealedLocalAddress(sc.localAddress()); |
| } |
| |
| @Override |
| public SocketChannel getChannel() { |
| return sc; |
| } |
| |
| @Override |
| public InputStream getInputStream() throws IOException { |
| if (!sc.isOpen()) |
| throw new SocketException("Socket is closed"); |
| if (!sc.isConnected()) |
| throw new SocketException("Socket is not connected"); |
| if (!sc.isInputOpen()) |
| throw new SocketException("Socket input is shutdown"); |
| return new InputStream() { |
| @Override |
| public int read() throws IOException { |
| byte[] a = new byte[1]; |
| int n = read(a, 0, 1); |
| return (n > 0) ? (a[0] & 0xff) : -1; |
| } |
| @Override |
| public int read(byte[] b, int off, int len) throws IOException { |
| int timeout = SocketAdaptor.this.timeout; |
| if (timeout > 0) { |
| long nanos = MILLISECONDS.toNanos(timeout); |
| return sc.blockingRead(b, off, len, nanos); |
| } else { |
| return sc.blockingRead(b, off, len, 0); |
| } |
| } |
| @Override |
| public int available() throws IOException { |
| return sc.available(); |
| } |
| @Override |
| public void close() throws IOException { |
| sc.close(); |
| } |
| }; |
| } |
| |
| @Override |
| public OutputStream getOutputStream() throws IOException { |
| if (!sc.isOpen()) |
| throw new SocketException("Socket is closed"); |
| if (!sc.isConnected()) |
| throw new SocketException("Socket is not connected"); |
| if (!sc.isOutputOpen()) |
| throw new SocketException("Socket output is shutdown"); |
| return new OutputStream() { |
| @Override |
| public void write(int b) throws IOException { |
| byte[] a = new byte[]{(byte) b}; |
| write(a, 0, 1); |
| } |
| @Override |
| public void write(byte[] b, int off, int len) throws IOException { |
| sc.blockingWriteFully(b, off, len); |
| } |
| @Override |
| public void close() throws IOException { |
| sc.close(); |
| } |
| }; |
| } |
| |
| private void setBooleanOption(SocketOption<Boolean> name, boolean value) |
| throws SocketException |
| { |
| try { |
| sc.setOption(name, value); |
| } catch (IOException x) { |
| Net.translateToSocketException(x); |
| } |
| } |
| |
| private void setIntOption(SocketOption<Integer> name, int value) |
| throws SocketException |
| { |
| try { |
| sc.setOption(name, value); |
| } catch (IOException x) { |
| Net.translateToSocketException(x); |
| } |
| } |
| |
| private boolean getBooleanOption(SocketOption<Boolean> name) throws SocketException { |
| try { |
| return sc.getOption(name).booleanValue(); |
| } catch (IOException x) { |
| Net.translateToSocketException(x); |
| return false; // keep compiler happy |
| } |
| } |
| |
| private int getIntOption(SocketOption<Integer> name) throws SocketException { |
| try { |
| return sc.getOption(name).intValue(); |
| } catch (IOException x) { |
| Net.translateToSocketException(x); |
| return -1; // keep compiler happy |
| } |
| } |
| |
| @Override |
| public void setTcpNoDelay(boolean on) throws SocketException { |
| setBooleanOption(StandardSocketOptions.TCP_NODELAY, on); |
| } |
| |
| @Override |
| public boolean getTcpNoDelay() throws SocketException { |
| return getBooleanOption(StandardSocketOptions.TCP_NODELAY); |
| } |
| |
| @Override |
| public void setSoLinger(boolean on, int linger) throws SocketException { |
| if (!on) |
| linger = -1; |
| setIntOption(StandardSocketOptions.SO_LINGER, linger); |
| } |
| |
| @Override |
| public int getSoLinger() throws SocketException { |
| return getIntOption(StandardSocketOptions.SO_LINGER); |
| } |
| |
| @Override |
| public void sendUrgentData(int data) throws IOException { |
| int n = sc.sendOutOfBandData((byte) data); |
| if (n == 0) |
| throw new IOException("Socket buffer full"); |
| } |
| |
| @Override |
| public void setOOBInline(boolean on) throws SocketException { |
| setBooleanOption(ExtendedSocketOption.SO_OOBINLINE, on); |
| } |
| |
| @Override |
| public boolean getOOBInline() throws SocketException { |
| return getBooleanOption(ExtendedSocketOption.SO_OOBINLINE); |
| } |
| |
| @Override |
| public void setSoTimeout(int timeout) throws SocketException { |
| if (!sc.isOpen()) |
| throw new SocketException("Socket is closed"); |
| if (timeout < 0) |
| throw new IllegalArgumentException("timeout < 0"); |
| this.timeout = timeout; |
| } |
| |
| @Override |
| public int getSoTimeout() throws SocketException { |
| if (!sc.isOpen()) |
| throw new SocketException("Socket is closed"); |
| return timeout; |
| } |
| |
| @Override |
| public void setSendBufferSize(int size) throws SocketException { |
| // size 0 valid for SocketChannel, invalid for Socket |
| if (size <= 0) |
| throw new IllegalArgumentException("Invalid send size"); |
| setIntOption(StandardSocketOptions.SO_SNDBUF, size); |
| } |
| |
| @Override |
| public int getSendBufferSize() throws SocketException { |
| return getIntOption(StandardSocketOptions.SO_SNDBUF); |
| } |
| |
| @Override |
| public void setReceiveBufferSize(int size) throws SocketException { |
| // size 0 valid for SocketChannel, invalid for Socket |
| if (size <= 0) |
| throw new IllegalArgumentException("Invalid receive size"); |
| setIntOption(StandardSocketOptions.SO_RCVBUF, size); |
| } |
| |
| @Override |
| public int getReceiveBufferSize() throws SocketException { |
| return getIntOption(StandardSocketOptions.SO_RCVBUF); |
| } |
| |
| @Override |
| public void setKeepAlive(boolean on) throws SocketException { |
| setBooleanOption(StandardSocketOptions.SO_KEEPALIVE, on); |
| } |
| |
| @Override |
| public boolean getKeepAlive() throws SocketException { |
| return getBooleanOption(StandardSocketOptions.SO_KEEPALIVE); |
| } |
| |
| @Override |
| public void setTrafficClass(int tc) throws SocketException { |
| setIntOption(StandardSocketOptions.IP_TOS, tc); |
| } |
| |
| @Override |
| public int getTrafficClass() throws SocketException { |
| return getIntOption(StandardSocketOptions.IP_TOS); |
| } |
| |
| @Override |
| public void setReuseAddress(boolean on) throws SocketException { |
| setBooleanOption(StandardSocketOptions.SO_REUSEADDR, on); |
| } |
| |
| @Override |
| public boolean getReuseAddress() throws SocketException { |
| return getBooleanOption(StandardSocketOptions.SO_REUSEADDR); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| sc.close(); |
| } |
| |
| @Override |
| public void shutdownInput() throws IOException { |
| try { |
| sc.shutdownInput(); |
| } catch (Exception x) { |
| Net.translateException(x); |
| } |
| } |
| |
| @Override |
| public void shutdownOutput() throws IOException { |
| try { |
| sc.shutdownOutput(); |
| } catch (Exception x) { |
| Net.translateException(x); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| if (sc.isConnected()) |
| return "Socket[addr=" + getInetAddress() + |
| ",port=" + getPort() + |
| ",localport=" + getLocalPort() + "]"; |
| return "Socket[unconnected]"; |
| } |
| |
| @Override |
| public boolean isConnected() { |
| return sc.isConnected(); |
| } |
| |
| @Override |
| public boolean isBound() { |
| return sc.localAddress() != null; |
| } |
| |
| @Override |
| public boolean isClosed() { |
| return !sc.isOpen(); |
| } |
| |
| @Override |
| public boolean isInputShutdown() { |
| return !sc.isInputOpen(); |
| } |
| |
| @Override |
| public boolean isOutputShutdown() { |
| return !sc.isOutputOpen(); |
| } |
| |
| @Override |
| public <T> Socket setOption(SocketOption<T> name, T value) throws IOException { |
| sc.setOption(name, value); |
| return this; |
| } |
| |
| @Override |
| public <T> T getOption(SocketOption<T> name) throws IOException { |
| return sc.getOption(name); |
| } |
| |
| @Override |
| public Set<SocketOption<?>> supportedOptions() { |
| return sc.supportedOptions(); |
| } |
| } |