基于多线程的java端口扫描器 第2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 InetAddress hostAddress;
//最小的端口号
public int MIN_port;
//最大的端口号
public int MAX_port;
//线程总数
private int threadnum;
//查询方式：0为ip；1为主机名
public int type;
//ip地址前3位
public int ip1;
//ip地址4~6位
public int ip2;
//ip地址7~9位
public int ip3;
//起始ip地址的最后4位
public int ipstart;
//结束ip地址的最后4位
public int ipend;
//完整的ip地址
public 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;
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");
}www.751com.cn
}
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...");
}
}
}
}
}149