1/*
2 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.net;
27
28import java.net.InetAddress;
29import java.io.FileDescriptor;
30import java.io.IOException;
31import java.security.AccessController;
32import java.security.PrivilegedAction;
33import sun.security.action.GetPropertyAction;
34
35/**
36 * Defines static methods to be invoked prior to binding or connecting TCP sockets.
37 */
38
39public final class NetHooks {
40
41    // Android-removed: No SDP support.
42    // /**
43    //  * A provider with hooks to allow sockets be converted prior to binding or
44    //  * connecting a TCP socket.
45    //  *
46    //  * <p> Concrete implementations of this class should define a zero-argument
47    //  * constructor and implement the abstract methods specified below.
48    //  */
49    //  public static abstract class Provider {
50    //     /**
51    //      * Initializes a new instance of this class.
52    //      */
53    //     protected Provider() {}
54    //
55    //    /**
56    //      * Invoked prior to binding a TCP socket.
57    //      */
58    //     public abstract void implBeforeTcpBind(FileDescriptor fdObj,
59    //                                            InetAddress address,
60    //                                            int port)
61    //         throws IOException;
62    //
63    //     /**
64    //      * Invoked prior to connecting an unbound TCP socket.
65    //      */
66    //     public abstract void implBeforeTcpConnect(FileDescriptor fdObj,
67    //                                              InetAddress address,
68    //                                              int port)
69    //         throws IOException;
70    // }
71
72    /**
73     * For now, we load the SDP provider on Solaris. In the future this may
74     * be changed to use the ServiceLoader facility to allow the deployment of
75     * other providers.
76     */
77    // Android-removed: No SDP support
78    // private static final Provider provider = new sun.net.sdp.SdpProvider();
79
80    /**
81     * Invoke prior to binding a TCP socket.
82     */
83    public static void beforeTcpBind(FileDescriptor fdObj,
84                                     InetAddress address,
85                                     int port)
86        throws IOException
87    {
88        // Android-removed: No SDP support
89        // provider.implBeforeTcpBind(fdObj, address, port);
90    }
91
92    /**
93     * Invoke prior to connecting an unbound TCP socket.
94     */
95    public static void beforeTcpConnect(FileDescriptor fdObj,
96                                        InetAddress address,
97                                        int port)
98        throws IOException
99    {
100        // Android-removed: No SDP support
101        // provider.implBeforeTcpConnect(fdObj, address, port);
102    }
103}
104