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Java > Open Source Codes > com > jcraft > jsch > ChannelShell


1 /* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
2 /*
3 Copyright (c) 2002,2003,2004,2005,2006 ymnk, JCraft,Inc. All rights reserved.
4
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
7
8   1. Redistributions of source code must retain the above copyright notice,
9      this list of conditions and the following disclaimer.
10
11   2. Redistributions in binary form must reproduce the above copyright
12      notice, this list of conditions and the following disclaimer in
13      the documentation and/or other materials provided with the distribution.
14
15   3. The names of the authors may not be used to endorse or promote products
16      derived from this software without specific prior written permission.
17
18 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
19 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
21 INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
22 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
24 OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 package com.jcraft.jsch;
31
32 import java.util.*;
33
34 public class ChannelShell extends ChannelSession{
35
36   private boolean pty=true;
37
38   private String JavaDoc ttype="vt100";
39   private int tcol=80;
40   private int trow=24;
41   private int twp=640;
42   private int thp=480;
43   private byte[] terminal_mode=null;
44
45   public void setPty(boolean enable){
46     pty=enable;
47   }
48   public void setTerminalMode(byte[] terminal_mode){
49     this.terminal_mode=terminal_mode;
50   }
51   public void start() throws JSchException{
52     try{
53       Request request;
54
55       if(agent_forwarding){
56         request=new RequestAgentForwarding();
57         request.request(session, this);
58       }
59
60       if(xforwading){
61         request=new RequestX11();
62         request.request(session, this);
63       }
64
65       if(pty){
66         request=new RequestPtyReq();
67         ((RequestPtyReq)request).setTType(ttype);
68         ((RequestPtyReq)request).setTSize(tcol, trow, twp, thp);
69         if(terminal_mode!=null){
70           ((RequestPtyReq)request).setTerminalMode(terminal_mode);
71         }
72         request.request(session, this);
73       }
74
75       if(env!=null){
76         for(Enumeration _env=env.keys() ; _env.hasMoreElements() ;) {
77           String JavaDoc name=(String JavaDoc)(_env.nextElement());
78           String JavaDoc value=(String JavaDoc)(env.get(name));
79           request=new RequestEnv();
80           ((RequestEnv)request).setEnv(name, value);
81           request.request(session, this);
82         }
83       }
84
85       request=new RequestShell();
86       request.request(session, this);
87     }
88     catch(Exception JavaDoc e){
89       if(e instanceof JSchException) throw (JSchException)e;
90       if(e instanceof Throwable JavaDoc)
91         throw new JSchException("ChannelShell", (Throwable JavaDoc)e);
92       throw new JSchException("ChannelShell");
93     }
94
95     if(io.in!=null){
96       thread=new Thread JavaDoc(this);
97       thread.setName("Shell for "+session.host);
98       if(session.daemon_thread){
99         thread.setDaemon(session.daemon_thread);
100       }
101       thread.start();
102     }
103   }
104   //public void finalize() throws Throwable{ super.finalize(); }
105 public void init(){
106     io.setInputStream(session.in);
107     io.setOutputStream(session.out);
108   }
109   public void setPtySize(int col, int row, int wp, int hp){
110     //if(thread==null) return;
111 try{
112       RequestWindowChange request=new RequestWindowChange();
113       request.setSize(col, row, wp, hp);
114       request.request(session, this);
115     }
116     catch(Exception JavaDoc e){
117       //System.err.println("ChannelShell.setPtySize: "+e);
118 }
119   }
120   public void setPtyType(String JavaDoc ttype){
121     setPtyType(ttype, 80, 24, 640, 480);
122   }
123   public void setPtyType(String JavaDoc ttype, int col, int row, int wp, int hp){
124     this.ttype=ttype;
125     this.tcol=col;
126     this.trow=row;
127     this.twp=wp;
128     this.thp=hp;
129   }
130 }
131
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