2002-09-17 14:58:40 +08:00
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/* NetworkInterface.java
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2003-03-04 14:00:43 +08:00
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Copyright (C) 2002, 2003 Free Software Foundation, Inc.
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2002-09-17 14:58:40 +08:00
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This file is part of GNU Classpath.
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GNU Classpath 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 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.net;
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import java.util.Enumeration;
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import java.util.Vector;
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/**
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2003-05-26 20:58:02 +08:00
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* This class models a network interface on the host computer. A network
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* interface contains a name (typically associated with a specific
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* hardware adapter) and a list of addresses that are bound to it.
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* For example, an ethernet interface may be named "eth0" and have the
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* address 192.168.1.101 assigned to it.
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*
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2002-09-17 14:58:40 +08:00
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* @author Michael Koch <konqueror@gmx.de>
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* @since 1.4
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*/
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public final class NetworkInterface
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{
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private String name;
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private Vector inetAddresses;
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private NetworkInterface (String name, InetAddress address)
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{
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this.name = name;
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this.inetAddresses = new Vector (1, 1);
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this.inetAddresses.add (address);
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}
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private native static Vector getRealNetworkInterfaces ()
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throws SocketException;
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/**
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2003-05-26 20:58:02 +08:00
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* Returns the name of the network interface
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*
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* @return The name of the interface.
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2002-09-17 14:58:40 +08:00
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*/
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public String getName ()
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{
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return name;
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}
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/**
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* Returns all available addresses of the network interface
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*
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* If a @see SecurityManager is available all addresses are checked
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* with @see SecurityManager::checkConnect() if they are available.
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2003-05-26 20:58:02 +08:00
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* Only <code>InetAddresses</code> are returned where the security manager
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* doesn't throw an exception.
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2002-09-17 14:58:40 +08:00
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*
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* @return An enumeration of all addresses.
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*/
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public Enumeration getInetAddresses ()
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{
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SecurityManager s = System.getSecurityManager ();
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if (s == null)
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return inetAddresses.elements ();
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Vector tmpInetAddresses = new Vector (1, 1);
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for (Enumeration addresses = inetAddresses.elements ();
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addresses.hasMoreElements (); )
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{
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InetAddress addr = (InetAddress) addresses.nextElement ();
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try
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{
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s.checkConnect (addr.getHostAddress (), 58000);
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tmpInetAddresses.add (addr);
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}
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catch (SecurityException e)
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{
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}
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}
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return tmpInetAddresses.elements ();
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}
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/**
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* Returns the display name of the interface
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2003-05-26 20:58:02 +08:00
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*
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* @return The display name of the interface
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2002-09-17 14:58:40 +08:00
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*/
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public String getDisplayName ()
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{
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return name;
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}
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/**
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* Returns an network interface by name
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*
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* @param name The name of the interface to return
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2002-09-25 Michael Koch <konqueror@gmx.de>
* java/net/DatagramPacket
(DatagramPacket): Exception documentation added.
(setData): Likewise.
(setSocketAddress): Likewise.
* java/net/DatagramSocketImpl.java
(peek): Documentation addded.
(peekData): Documentation addded.
(send): Documentation addded.
(receive): Documentation addded.
(connect): New method.
(disconnect): New method.
(joinGroup): New abstract method.
(leaveGroup): New abstract method.
* java/net/InetSocketAddress.java
(InetSocketAddress): Documentation added.
(equals): final keyword added.
(getAddress): final keyword added.
(getHostName): final keyword added.
(getPort): final keyword added.
(hashCode): final keyword added.
(isUnresolved): final keyword added.
* java/net/MulticastSocket.java
(MulticastSocket): Documentation added.
(MulticastSocket): New method.
(joinGroup): Documentation added.
(joinGroup): New method.
(leaveGroup): Documentation added.
(leaveGroup): New method.
(send): Documentation added.
* java/net/NetworkInterface.java
(getByName): Documentation added.
(getByInetAddress): Documentation added.
(getNetworkInterfaces): Documentation added.
* java/net/PlainDatagramSocketImpl.java
(connect): New method.
(disconnect): New method.
* java/net/SocketImpl.java
(create): Documentation added.
(shutdownInput): Convert public to protected, as it always was.
(shutdownOutput): Convert public to protected, as it always was.
* java/net/SocketOptions.java
(whole file): Reintented.
* java/net/URLClassLoader.java
(URLClassLoader): SecurityManager check added, documentation added.
(findResources): Documentation added.
(findClass): Documentation added.
(newInstance): More correct method arguments.
* java/net/URLConnection.java
(connect): Documentation added.
(getContent): Documentation added.
(getPermission): Documentation added.
(getInputStream): Documentation added.
(getOutputStream): Documentation added.
(setDoInput): Throw correct exception, documentation added.
(setDoOutput): Throw correct exception, documentation added.
(setAllowUserInteraction): Throw correct exception, documentation added.
(setUseCaches): Throw correct exception, documentation added.
(setIfModifiedSince): Throw correct exception, documentation added.
(setRequestProperty): Throw exception, documentation added.
(addRequestProperty): Throw exception, documentation added.
(getRequestProperty): Throw exception, documentation added.
(getRequestProperties): Documentation added.
(setContentHandlerFactory): Documentation added.
(guessContentTypeFromName): protected to public.
(setFileNameMap): Documentation added.
* java/net/URLDecoder.java
(URLDecoder): New method.
(decode): Documentation added.
(whole file): Reindented.
* java/net/URLEncoder.java
(encode): Documentation added.
* java/net/natPlainDatagramSocketImpl.cc
(connect): New method.
(disconnect): New method.
* javax/naming/RefAddr:
(addrType): addrType was never final.
(equals): Fix typo in method name.
* javax/naming/BinaryRefAddr:
(equals): Fix typo in method name.
From-SVN: r57487
2002-09-25 13:05:07 +08:00
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*
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* @exception SocketException If an error occurs
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* @exception NullPointerException If the specified name is null
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2002-09-17 14:58:40 +08:00
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*/
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public static NetworkInterface getByName (String name)
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throws SocketException
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{
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2003-05-06 04:18:31 +08:00
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Vector networkInterfaces = getRealNetworkInterfaces ();
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2002-09-17 14:58:40 +08:00
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for (Enumeration e = networkInterfaces.elements ();
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e.hasMoreElements (); )
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{
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NetworkInterface tmp = (NetworkInterface) e.nextElement ();
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if (name.equals (tmp.getName ()))
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return tmp;
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}
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throw new SocketException ("no network interface with this name exists");
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}
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/**
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* Return a network interface by its address
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*
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* @param addr The address of the interface to return
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2002-09-25 Michael Koch <konqueror@gmx.de>
* java/net/DatagramPacket
(DatagramPacket): Exception documentation added.
(setData): Likewise.
(setSocketAddress): Likewise.
* java/net/DatagramSocketImpl.java
(peek): Documentation addded.
(peekData): Documentation addded.
(send): Documentation addded.
(receive): Documentation addded.
(connect): New method.
(disconnect): New method.
(joinGroup): New abstract method.
(leaveGroup): New abstract method.
* java/net/InetSocketAddress.java
(InetSocketAddress): Documentation added.
(equals): final keyword added.
(getAddress): final keyword added.
(getHostName): final keyword added.
(getPort): final keyword added.
(hashCode): final keyword added.
(isUnresolved): final keyword added.
* java/net/MulticastSocket.java
(MulticastSocket): Documentation added.
(MulticastSocket): New method.
(joinGroup): Documentation added.
(joinGroup): New method.
(leaveGroup): Documentation added.
(leaveGroup): New method.
(send): Documentation added.
* java/net/NetworkInterface.java
(getByName): Documentation added.
(getByInetAddress): Documentation added.
(getNetworkInterfaces): Documentation added.
* java/net/PlainDatagramSocketImpl.java
(connect): New method.
(disconnect): New method.
* java/net/SocketImpl.java
(create): Documentation added.
(shutdownInput): Convert public to protected, as it always was.
(shutdownOutput): Convert public to protected, as it always was.
* java/net/SocketOptions.java
(whole file): Reintented.
* java/net/URLClassLoader.java
(URLClassLoader): SecurityManager check added, documentation added.
(findResources): Documentation added.
(findClass): Documentation added.
(newInstance): More correct method arguments.
* java/net/URLConnection.java
(connect): Documentation added.
(getContent): Documentation added.
(getPermission): Documentation added.
(getInputStream): Documentation added.
(getOutputStream): Documentation added.
(setDoInput): Throw correct exception, documentation added.
(setDoOutput): Throw correct exception, documentation added.
(setAllowUserInteraction): Throw correct exception, documentation added.
(setUseCaches): Throw correct exception, documentation added.
(setIfModifiedSince): Throw correct exception, documentation added.
(setRequestProperty): Throw exception, documentation added.
(addRequestProperty): Throw exception, documentation added.
(getRequestProperty): Throw exception, documentation added.
(getRequestProperties): Documentation added.
(setContentHandlerFactory): Documentation added.
(guessContentTypeFromName): protected to public.
(setFileNameMap): Documentation added.
* java/net/URLDecoder.java
(URLDecoder): New method.
(decode): Documentation added.
(whole file): Reindented.
* java/net/URLEncoder.java
(encode): Documentation added.
* java/net/natPlainDatagramSocketImpl.cc
(connect): New method.
(disconnect): New method.
* javax/naming/RefAddr:
(addrType): addrType was never final.
(equals): Fix typo in method name.
* javax/naming/BinaryRefAddr:
(equals): Fix typo in method name.
From-SVN: r57487
2002-09-25 13:05:07 +08:00
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*
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* @exception SocketException If an error occurs
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* @exception NullPointerException If the specified addess is null
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2002-09-17 14:58:40 +08:00
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*/
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public static NetworkInterface getByInetAddress (InetAddress addr)
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throws SocketException
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{
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2003-05-06 04:18:31 +08:00
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Vector networkInterfaces = getRealNetworkInterfaces ();
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2002-09-17 14:58:40 +08:00
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for (Enumeration interfaces = networkInterfaces.elements ();
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interfaces.hasMoreElements (); )
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{
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NetworkInterface tmp = (NetworkInterface) interfaces.nextElement ();
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for (Enumeration addresses = tmp.inetAddresses.elements ();
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addresses.hasMoreElements (); )
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{
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if (addr.equals ((InetAddress) addresses.nextElement ()))
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return tmp;
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}
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}
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throw new SocketException (
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"no network interface is bound to such an IP address");
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}
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/**
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2003-05-26 20:58:02 +08:00
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* Return an <code>Enumeration</code> of all available network interfaces
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2002-09-25 Michael Koch <konqueror@gmx.de>
* java/net/DatagramPacket
(DatagramPacket): Exception documentation added.
(setData): Likewise.
(setSocketAddress): Likewise.
* java/net/DatagramSocketImpl.java
(peek): Documentation addded.
(peekData): Documentation addded.
(send): Documentation addded.
(receive): Documentation addded.
(connect): New method.
(disconnect): New method.
(joinGroup): New abstract method.
(leaveGroup): New abstract method.
* java/net/InetSocketAddress.java
(InetSocketAddress): Documentation added.
(equals): final keyword added.
(getAddress): final keyword added.
(getHostName): final keyword added.
(getPort): final keyword added.
(hashCode): final keyword added.
(isUnresolved): final keyword added.
* java/net/MulticastSocket.java
(MulticastSocket): Documentation added.
(MulticastSocket): New method.
(joinGroup): Documentation added.
(joinGroup): New method.
(leaveGroup): Documentation added.
(leaveGroup): New method.
(send): Documentation added.
* java/net/NetworkInterface.java
(getByName): Documentation added.
(getByInetAddress): Documentation added.
(getNetworkInterfaces): Documentation added.
* java/net/PlainDatagramSocketImpl.java
(connect): New method.
(disconnect): New method.
* java/net/SocketImpl.java
(create): Documentation added.
(shutdownInput): Convert public to protected, as it always was.
(shutdownOutput): Convert public to protected, as it always was.
* java/net/SocketOptions.java
(whole file): Reintented.
* java/net/URLClassLoader.java
(URLClassLoader): SecurityManager check added, documentation added.
(findResources): Documentation added.
(findClass): Documentation added.
(newInstance): More correct method arguments.
* java/net/URLConnection.java
(connect): Documentation added.
(getContent): Documentation added.
(getPermission): Documentation added.
(getInputStream): Documentation added.
(getOutputStream): Documentation added.
(setDoInput): Throw correct exception, documentation added.
(setDoOutput): Throw correct exception, documentation added.
(setAllowUserInteraction): Throw correct exception, documentation added.
(setUseCaches): Throw correct exception, documentation added.
(setIfModifiedSince): Throw correct exception, documentation added.
(setRequestProperty): Throw exception, documentation added.
(addRequestProperty): Throw exception, documentation added.
(getRequestProperty): Throw exception, documentation added.
(getRequestProperties): Documentation added.
(setContentHandlerFactory): Documentation added.
(guessContentTypeFromName): protected to public.
(setFileNameMap): Documentation added.
* java/net/URLDecoder.java
(URLDecoder): New method.
(decode): Documentation added.
(whole file): Reindented.
* java/net/URLEncoder.java
(encode): Documentation added.
* java/net/natPlainDatagramSocketImpl.cc
(connect): New method.
(disconnect): New method.
* javax/naming/RefAddr:
(addrType): addrType was never final.
(equals): Fix typo in method name.
* javax/naming/BinaryRefAddr:
(equals): Fix typo in method name.
From-SVN: r57487
2002-09-25 13:05:07 +08:00
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*
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* @exception SocketException If an error occurs
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2002-09-17 14:58:40 +08:00
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*/
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public static Enumeration getNetworkInterfaces ()
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throws SocketException
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{
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2003-05-06 04:18:31 +08:00
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Vector networkInterfaces = getRealNetworkInterfaces ();
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2002-09-17 14:58:40 +08:00
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Enumeration tmp = networkInterfaces.elements ();
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2003-05-06 04:18:31 +08:00
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2002-09-17 14:58:40 +08:00
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if (tmp.hasMoreElements ())
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return tmp;
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return null;
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}
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/**
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* Checks if the current instance is equal to obj
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*
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* @param obj The object to compare with
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*/
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public boolean equals (Object obj)
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{
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if (!(obj instanceof NetworkInterface))
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return false;
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NetworkInterface tmp = (NetworkInterface) obj;
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2003-05-06 04:18:31 +08:00
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2003-02-13 15:33:40 +08:00
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return (name.equals (tmp.name)
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&& inetAddresses.equals (tmp.inetAddresses));
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2002-09-17 14:58:40 +08:00
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}
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/**
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* Returns the hashcode of the current instance
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*/
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public int hashCode ()
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{
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// FIXME: hash correctly
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return name.hashCode () + inetAddresses.hashCode ();
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}
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/**
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* Returns a string representation of the interface
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*/
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public String toString ()
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{
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// FIXME: check if this is correct
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String result;
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2002-10-10 13:19:22 +08:00
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String separator = System.getProperty ("line.separator");
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2002-09-17 14:58:40 +08:00
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result = "name: " + getDisplayName () + " (" + getName () +
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2002-10-10 13:19:22 +08:00
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") addresses:" + separator;
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2002-09-17 14:58:40 +08:00
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for (Enumeration e = inetAddresses.elements ();
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e.hasMoreElements (); )
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{
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InetAddress address = (InetAddress) e.nextElement ();
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2003-05-06 04:18:31 +08:00
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result += address.toString () + ";" + separator;
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2002-09-17 14:58:40 +08:00
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}
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return result;
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}
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} // class NetworkInterface
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