端口扫描ipv4和ipv6都适合

用C#写的一个小型端口扫描程序，适合学习和更改。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Text.Regularexpressions;
using System.Net.Security;

namespace PortScan
{
    class Program
    {
        static void Main（string[] args）
        {
            string server = null;
            bool isConnected = true;
            int scanPort = 0;
            int scanPortFrom = 0;
            int scanPortTo = 0;

            if （args.Length < 2）
            {
                // Get Local Server
                Console.WriteLine（“Usage:      PortScan  Hostname scanport“）;
                Console.WriteLine（“Usage:      PortScan  Hostname FromPort EndPort“）;
                return;
            }
            else
            {
                server = args[0];
                //Console.WriteLine（“Testing Remote host: “ + args[0]）;
            }
            //scanPort=Convert.ToInt32（args[1]）;   ///convert string to int have 2 methods



            IPHostEntry heserver = Dns.GetHostEntry（server）;
            //Only do the First IP address
            //Console.WriteLine（heserver.AddressList[0].ToString（））;//print the IP
            //Console.WriteLine（heserver.AddressList[0]）;//print the IP 2nd method
            Console.WriteLine（server+“<==>“+heserver.AddressList[0]）;
            IPAddress remoteHost = heserver.AddressList[0];

            if （args .Length== 2）  //Scan 1 port
            {

                isConnected = true;
                scanPort = int.Parse（args[1]）;
                Socket localSocket = new Socket（remoteHost.AddressFamily SocketType.Stream ProtocolType.Tcp）;  //.AddressFamily.maybe ipv4 maybe ipv6
                IPEndPoint iep = new IPEndPoint（remoteHost scanPort）;
                try
                {
                    localSocket.Connect（iep）;
                }
                catch （SocketException sex）
                {
                    //Console.WriteLine（sex.Message）;//print Error Info
                    isConnected = false;
                }
                if （isConnected == true）
                    Console.WriteLine（“Port  “ + scanPort + “ is open“）;
                else
                    Console.WriteLine（“Port  “ + scanPort + “ is Close“）;
                localSocket.Close（）;

            }

            if （args.Length == 3）  //Scan  port in scope
            {
                scanPortFrom = int.Parse（args[1]）;
                scanPortTo = int.Parse（args[2]）;

                for（int i=scanPortFrom;i<=scanPortTo;i++）
                {
                    isConnected = true;
                    Socket localSocket = new Socket（remoteHost.AddressFamily SocketType.Stream ProtocolType.Tcp）;  //.AddressFamily.maybe ipv4 maybe ipv6
                    IPEndPoint iep = new IPEndPoint（remoteHost i）;
                    try
                    {
                        localSocket.Connect（i

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

    .......      5632  2012-03-06 15:13  PortScan\PortScan\bin\Debug\PortScan.exe

    .......     13824  2012-03-06 15:13  PortScan\PortScan\bin\Debug\PortScan.pdb

    .......     14328  2012-03-06 09:46  PortScan\PortScan\bin\Debug\PortScan.vshost.exe

    .......       490  2007-07-21 01:33  PortScan\PortScan\bin\Debug\PortScan.vshost.exe.manifest

    .......      5632  2012-03-06 15:15  PortScan\PortScan\bin\Release\PortScan.exe

    .......     11776  2012-03-06 15:15  PortScan\PortScan\bin\Release\PortScan.pdb

    .......     14328  2012-03-26 20:09  PortScan\PortScan\bin\Release\PortScan.vshost.exe

    .......       490  2007-07-21 01:33  PortScan\PortScan\bin\Release\PortScan.vshost.exe.manifest

    .......       288  2012-03-06 15:13  PortScan\PortScan\obj\Debug\PortScan.csproj.FileListAbsolute.txt

    .......      5632  2012-03-06 15:13  PortScan\PortScan\obj\Debug\PortScan.exe

    .......     13824  2012-03-06 15:13  PortScan\PortScan\obj\Debug\PortScan.pdb

     文件        298  2012-03-26 20:09  PortScan\PortScan\obj\Release\PortScan.csproj.FileListAbsolute.txt

    .......      5632  2012-03-06 15:15  PortScan\PortScan\obj\Release\PortScan.exe

    .......     11776  2012-03-06 15:15  PortScan\PortScan\obj\Release\PortScan.pdb

    .......      2607  2012-03-06 09:58  PortScan\PortScan\PortScan.csproj

    .......      3630  2012-03-06 15:49  PortScan\PortScan\Program.cs

    .......      1358  2012-03-06 09:46  PortScan\PortScan\Properties\AssemblyInfo.cs

    .......       914  2012-03-06 09:46  PortScan\PortScan.sln

    ..A..H.     14848  2012-03-26 20:09  PortScan\PortScan.suo

     目录          0  2012-03-06 09:46  PortScan\PortScan\obj\Debug\TempPE

     目录          0  2012-03-06 15:15  PortScan\PortScan\obj\Release\TempPE

     目录          0  2012-03-06 15:13  PortScan\PortScan\bin\Debug

     目录          0  2012-03-06 15:15  PortScan\PortScan\bin\Release

     目录          0  2012-03-06 15:13  PortScan\PortScan\obj\Debug

     目录          0  2012-03-06 15:15  PortScan\PortScan\obj\Release

     目录          0  2012-03-06 15:15  PortScan\PortScan\bin

     目录          0  2012-03-06 15:15  PortScan\PortScan\obj

     目录          0  2012-03-06 09:46  PortScan\PortScan\Properties

     目录          0  2012-03-06 15:49  PortScan\PortScan

     目录          0  2012-03-06 09:46  PortScan

............此处省略3个文件信息