2002-09-30 Michael Koch <konqueror@gmx.de>

* java/net/DatagramSocket.java
	(receive): Check with SecurityManager AFTER the packet is received,
	check if connected to multicast address, documentation added.
	(send): Only check SecurityManager if connected, check address of
	packet to send.
	(connect): Implemented, documentation added.
	* java/net/Inet6Address.java: New file (not added yet to Makefile.am).
	* java/net/InetSocketAddress.java
	(whole file): Reindented.
	(hostname): New attribute.
	(InetSocketAddress): Initialize new attribute.
	(getAddress): Documentation added.
	(getHostName): Documentation added.
	(getPort): Documentation added.
	(hashCode): Documentation added.
	(isUnresolved): Documentation added.
	(toString): Conform to output of JDK 1.4.1, documentation added.
	* java/net/MulticastSocket.java
	(joinGroup): Removed FIXME, documentation added.
	(leaveGroup): Removed FIXME, documentation added.
	(send): Documentation added.
	* java/net/Socket.java
	(inputShutdown): New variable.
	(outputShutdown): New variable.
	(Socket): Initialize new variables.
	(getRemoteSocketAddress): Check if connected.
	(shutdownInput): Set new variable.
	(shutdownOutput): Set new variable.
	(isConnected): New method.
	(isClosed): New method.
	(isInputShutdown): New method.
	(isOutputShutdown): New method.
	* java/net/URLStreamHandler.java
	(URLStreamHandler): New method.
	(openConnection): Added documentation.
	(parseURL): Added documentation.
	(getHostAddress): New method.
	(getDefaultPort): New method.

From-SVN: r57772

libjava/java/net/Socket.java

@@ -80,6 +80,9 @@ public class Socket
    */
   SocketImpl impl;
 
+  private boolean inputShutdown;
+  private boolean outputShutdown;
+
   SocketChannel ch; // this field must have been set if created by SocketChannel
 
   // Constructors
@@ -97,6 +100,9 @@ public class Socket
       impl = factory.createSocketImpl();
     else
       impl = new PlainSocketImpl();
+
+    inputShutdown = false;
+    outputShutdown = false;
   }
 
   /**
@@ -118,6 +124,8 @@ public class Socket
   protected Socket (SocketImpl impl) throws SocketException
   {
     this.impl = impl;
+    this.inputShutdown = false;
+    this.outputShutdown = false;
   }
 
   /**
@@ -264,6 +272,9 @@ public class Socket
                  boolean stream) throws IOException
   {
     this();
+    this.inputShutdown = false;
+    this.outputShutdown = false;
+
     if (impl == null)
       throw new IOException("Cannot initialize Socket implementation");
 
@@ -457,6 +468,9 @@ public class Socket
    */
   public SocketAddress getRemoteSocketAddress()
   {
+    if (!isConnected ())
+      return null;
+
     return new InetSocketAddress (impl.getInetAddress (), impl.getPort ());
   }
 
@@ -886,10 +900,12 @@ public class Socket
    *
    * @exception IOException If an error occurs.
    */
-  public void shutdownInput() throws IOException 
+  public void shutdownInput() throws IOException
   {
     if (impl != null)
       impl.shutdownInput();
+
+    inputShutdown = true;
   }
 
   /**
@@ -901,6 +917,8 @@ public class Socket
   {
     if (impl != null)
       impl.shutdownOutput();
+    
+    outputShutdown = true;
   }
 
   /**
@@ -993,6 +1011,14 @@ public class Socket
     impl.setOption (SocketOptions.IP_TOS, new Integer (tc));
   }
 
+  /**
+   * Checks if the socket is connected
+   */
+  public boolean isConnected ()
+  {
+    return impl.getInetAddress () != null;
+  }
+
   /**
    * Checks if the socket is already bound.
    */
@@ -1000,4 +1026,29 @@ public class Socket
   {
     return getLocalAddress () != null;
   }
+
+  /**
+   * Checks if the socket is closed.
+   */
+  public boolean isClosed ()
+  {
+    // FIXME: implement this.
+    return false;
+  }
+
+  /**
+   * Checks if the socket's input stream is shutdown
+   */
+  public boolean isInputShutdown ()
+  {
+    return inputShutdown;
+  }
+
+  /**
+   * Checks if the socket's output stream is shutdown
+   */
+  public boolean isOutputShutdown ()
+  {
+    return outputShutdown;
+  }
 }