Source code: mindbright/ssh/SSHServerSocket.java
1 /******************************************************************************
2 *
3 * Copyright (c) 1998,99 by Mindbright Technology AB, Stockholm, Sweden.
4 * www.mindbright.se, info@mindbright.se
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 *****************************************************************************
17 * $Author: nallen $
18 * $Date: 2001/11/12 16:31:22 $
19 * $Name: $
20 *****************************************************************************/
21 package mindbright.ssh;
22
23 import java.net.*;
24 import java.io.*;
25
26 public class SSHServerSocket {
27 //
28 // !!! Can't extend ServerSocket since it's not intended to be used
29 // in this way... (i.e. it's only for a "vm-global" switch of
30 // socket-implementation)
31 //
32 // If we extend ServerSocket we waste a local port for each remote
33 // port we listen to, this is perhaps not too bad, BUT since applets
34 // can't listen to local sockets we are doomed if we want to use it
35 // in one... There is not much gain in extension here, I can't think
36 // of a real case where it would really matter.
37 //
38 public static final int DEFAULT_BACKLOG = 25;
39
40 protected SSHSocketFactory factory;
41 protected SSHSocketImpl impl;
42
43 protected SSHServerSocket(SSHSocketImpl impl) {
44 this.impl = impl;
45 }
46
47 protected void finalize() throws IOException {
48 impl.close();
49 }
50
51 protected void setSocketFactory(SSHSocketFactory factory) {
52 this.factory = factory;
53 }
54
55 public InetAddress getInetAddress() {
56 return impl.getInetAddress();
57 }
58
59 protected int getLocalPort() {
60 return impl.getLocalPort();
61 }
62
63 public SSHSocket accept() throws IOException {
64 SSHSocketImpl aImpl = factory.createSocketImpl(impl.client, false);
65 SSHSocket aSock;
66
67 impl.accept(aImpl);
68 aSock = new SSHSocket(aImpl);
69
70 return aSock;
71 }
72
73 public void close() throws IOException {
74 impl.close();
75 }
76
77 public synchronized void setSoTimeout(int timeout) throws SocketException {
78 impl.setOption(SSHSocketImpl.SO_TIMEOUT, new Integer(timeout));
79 }
80
81 public synchronized int getSoTimeout() throws IOException {
82 Object o = impl.getOption(SSHSocketImpl.SO_TIMEOUT);
83 /* extra type safety */
84 if (o instanceof Integer) {
85 return ((Integer) o).intValue();
86 } else {
87 return 0;
88 }
89 }
90
91 public String toString() {
92 return "ServerSocket[addr=" + impl.getInetAddress() +
93 ",port=" + impl.getPort() +
94 ",localport=" + impl.getLocalPort() + "]";
95 }
96
97 }