基于多线程的java端口扫描器 第5页

java端口扫描器
import java.net.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class TCPThread extends Thread{
 
 public static InetAddress hostAddress;
 
 //最小的端口号
 public static int MIN_port;
 //最大的端口号
 public static int MAX_port;
 
 //线程总数
 private int threadnum;   
 
 //查询方式：0为ip；1为主机名
 public static int type;

 //ip地址前3位
 public static int ip1;
 //ip地址4~6位
 public static int ip2;
 //ip地址7~9位
 public static int ip3;
 //起始ip地址的最后4位
 public static int ipstart;
 //结束ip地址的最后4位
 public static int ipend;
 //完整的ip地址
 public static String ipAll;

 //扫描的主机名称或ip
 String hostname = "";
 //端口的类别
 String porttype = "0";
  
 /*
  *构造函数
  */
 public TCPThread(String name,int threadnum){
  super(name);       
  this.threadnum = threadnum;   
 }   
 
 /*
  *运行函数
  */
 public void run() {
  
  //ip地址
  int h = 0;
  //端口号
  int i = 0;
  Socket theTCPsocket;

  //根据ip地址进行扫描
  if(type == 0){
   
   //ip地址循环扫描
   for(h = ipstart; h <=ipend; h++){
    
    //组成完整的ip地址
    ipAll = "" + ip1 + "." + ip2 + "." + ip3 + "." + h;
    hostname = ipAll;
    
    try{
     //在给定主机名的情况下确定主机的 IP 地址
     hostAddress=InetAddress.getByName(ipAll);
    }
    catch(UnknownHostException e){
    }
    
    //不同的端口循环扫描
    for (i = MIN_port+threadnum; i < MAX_port + Integer.parseInt(ThreadScan.maxThread.getText()); i += Integer.parseInt(ThreadScan.maxThread.getText())){

     try{
      theTCPsocket=new Socket(hostAddress,i);
      theTCPsocket.close();
      ThreadScan.Result.append(hostname+":"+i);
      
      //判断端口的类别
      switch(i){
       case 21:
        porttype = "(FTP)";
        break;
       case 23:
        porttype = "(TELNET)";
        break;
       case 25:
        porttype = "(SMTP)";
        break;
       case 80:
        porttype = "(HTTP)"; 
        break;
       case 110:
        porttype = "(POP)";
        break;
       case 139:
        porttype = "(netBIOS)";
        break;
       case 1433:
        porttype = "(SQL Server)";
        break;
       case 3389:
        porttype = "(Terminal Service)";
        break;
       case 443:
        porttype = "(HTTPS)";
        break;
       case 1521:
        porttype = "(Oracle)";
        break;
      }
      
      //端口没有特定类别
      if(porttype.equals("0")){
       ThreadScan.Result.append("\n");
      }
      else{
       ThreadScan.Result.append(":"+porttype+"\n");
      }
     }
     catch (IOException e){
     }
    }
   }
   
   //扫描完成后，显示扫描完成，并将“确定”按钮设置为可用
   if (i==MAX_port+Integer.parseInt(ThreadScan.maxThread.getText())){
    ThreadScan.Result.append("\n"+"扫描完成...");
    
    //将"确定"按钮设置成为可用
    if(!ThreadScan.Submit.isEnabled()){
     ThreadScan.Submit.setEnabled(true);
    }
   }
  }
  
  //按照主机名进行端口扫描
  if(type == 1){

   for (i = MIN_port+threadnum; i < MAX_port+Integer.parseInt(ThreadScan.maxThread.getText()); i += Integer.parseInt(ThreadScan.maxThread.getText())){

    try{
     theTCPsocket=new Socket(hostAddress,i);
     theTCPsocket.close();
     ThreadScan.Result.append(" "+i);
     switch(i){
       case 21:
        porttype = "(FTP)";
        break;
       case 23:
        porttype = "(TELNET)";
        break;
       case 25:
        porttype = "(SMTP)";
        break;
       case 80:
        porttype = "(HTTP)"; 
        break;
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        porttype = "(netBIOS)";
        break;
       case 1433:
        porttype = "(SQL Server)";
        break;
       case 3389:
        porttype = "(Terminal Service)";
        break;
       case 443:
        porttype = "(HTTPS)";
        break;
       case 1521:
        porttype = "(Oracle)";
        break;
      }
      
      //端口没有特定类别
      if(porttype.equals("0")){
       ThreadScan.Result.append("\n");
      }
      else{
       ThreadScan.Result.append(":"+porttype+"\n");
      }
    }
    catch (IOException e){
    }
   }
   
   //扫描完成后，显示扫描完成，并将【确定】按钮设置为可用
//将【确定】按钮设置成为可用
    if(!ThreadScan.Submit.isEnabled()){
     ThreadScan.Submit.setEnabled(true);
    }
   }
  }
 }
}

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