获取本机IP地址
代码语言：javascript复制using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Threading;
namespace ConsoleApplication1
{
class Program
{
public static List<string> GetLocalAddress(string netType)
{
string HostName = Dns.GetHostName();
IPAddress[] address = Dns.GetHostAddresses(HostName);
List<string> IpList = new List<string>();
if(netType == string.Empty)
{
for (int i = 0; i < address.Length; i )
{
IpList.Add(address[i].ToString());
}
}
else
{
for (int i = 0; i < address.Length; i )
{
if (address[i].AddressFamily.ToString() == netType)
{
IpList.Add(address[i].ToString());
}
}
}
return IpList;
}
static void Main(string[] args)
{
// 获取IPV4地址
List<string> ipv4 = GetLocalAddress("InterNetwork");
foreach (string each in ipv4)
Console.WriteLine(each);
// 获取IPV6地址
List<string> ipv6 = GetLocalAddress("InterNetworkV6");
foreach (string each in ipv6)
Console.WriteLine(each);
Console.ReadKey();
}
}
}线程操作基础
代码语言：javascript复制using System;
using System.Collections;
using System.Threading;
namespace ConsoleApplication1
{
class Program
{
// 定义一个无参线程函数
public static void My_Thread()
{
Console.WriteLine("线程函数已运行");
}
static void Main(string[] args)
{
string strinfo = string.Empty;
ThreadStart childref = new ThreadStart(My_Thread);
Thread thread = new Thread(childref);
thread.Start();
Console.WriteLine("线程唯一标识符: " thread.ManagedThreadId);
Console.WriteLine("线程名称: " thread.Name);
Console.WriteLine("线程状态: " thread.ThreadState.ToString());
Console.WriteLine("线程优先级: " thread.Priority.ToString());
Console.WriteLine("是否为后台线程: " thread.IsBackground);
Thread.Sleep(1000);
thread.Join();
Console.ReadKey();
}
}
}线程传递参数
代码语言：javascript复制using System;
using System.Collections;
using System.Threading;
namespace ConsoleApplication1
{
public struct ThreadObj
{
public string name;
public int age;
public ThreadObj(string _name, int _age)
{
this.name = _name;
this.age = _age;
}
}
class Program
{
// 定义一个无参线程函数
public static void My_Thread(object obj)
{
ThreadObj thread_path = (ThreadObj)obj;
Console.WriteLine("姓名: {0} 年纪: {1}", thread_path.name, thread_path.age);
Thread.Sleep(3000);
}
static void Main(string[] args)
{
for(int x=0;x<200;x )
{
ThreadObj obj = new ThreadObj("admin", x);
Thread thread = new Thread(My_Thread);
thread.IsBackground = true;
thread.Start(obj);
}
Console.ReadKey();
}
}
}实现端口扫描
代码语言：javascript复制using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
// FTP, SSH, Telnet, SMTP, HTTP, POP3, RPC, SMB, SMTP, IMAP, POP3
int[] Port = new int[] { 21, 22, 23, 25, 80, 110, 135, 445, 587, 993, 995 };
foreach(int each in Port)
{
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
try
{
sock.Connect("192.168.1.10",each);
if(sock.Connected)
{
Console.WriteLine("端口开启:" each);
}
}
catch
{
Console.WriteLine("端口关闭:" each);
sock.Close();
}
}
}
}
}多线程端口扫描
代码语言：javascript复制using System;
using System.Net;
using System.Net.Sockets;
namespace TimeoutPortScan
{
class TimeoutPortScan
{
private IPAddress ip;
private readonly int[] ports = new int[] { 21, 22, 23, 25, 53, 80, 110, 118, 135, 143, 156, 161,
443, 445, 465, 587, 666, 990, 991, 993, 995, 1080, 1433, 1434, 1984, 2049, 2483, 2484, 3128,
3306, 3389, 4662, 4672, 5222, 5223, 5269, 5432, 5500, 5800, 5900, 8000, 8008, 8080 };
public bool Connect(IPEndPoint remoteEndPoint, int timeoutMSec)
{
Socket scanSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
try
{
IAsyncResult result = scanSocket.BeginConnect(remoteEndPoint, null, null);
bool success = result.AsyncWaitHandle.WaitOne(TimeSpan.FromMilliseconds(timeoutMSec), false);
if (result.IsCompleted && scanSocket.Connected)
{
scanSocket.EndConnect(result);
return true;
}
else
return false;
}
finally
{
scanSocket.Close();
}
}
static void Main(string[] args)
{
TimeoutPortScan ps = new TimeoutPortScan();
for (int x = 1; x < 255;x )
{
string addr = string.Format("192.168.1.{0}", x);
IPAddress.TryParse(addr, out ps.ip);
for (int num = 0; num < ps.ports.Length; num )
{
if (ps.Connect(new IPEndPoint(ps.ip, ps.ports[num]), 100))
Console.WriteLine("IP:{0} --> 端口: {1} --> 状态: Open", addr,ps.ports[num]);
}
}
}
}
}异步端口扫描
代码语言：javascript复制using System;
using System.Net;
using System.Net.Sockets;
using System.Collections;
namespace AsyncPortScan
{
class AsyncPortScan
{
static void Main(string[] args)
{
IPAddress ip;
int startPort, endPort;
if (GetPortRange(args, out ip, out startPort, out endPort) == true) // 提取命令行参数
Scan(ip, startPort, endPort); // 端口扫描
}
/// 从命令行参数中提取端口
private static bool GetPortRange(string[] args, out IPAddress ip, out int startPort, out int endPort)
{
ip = null;
startPort = endPort = 0;
// 帮助命令
if (args.Length != 0 && (args[0] == "/?" || args[0] == "/h" || args[0] == "/help"))
{
Console.WriteLine("scan 192.168.1.10 100 2000");
return false;
}
if (args.Length == 3)
{
// 解析端口号成功
if (IPAddress.TryParse(args[0], out ip) && int.TryParse(args[1], out startPort) && int.TryParse(args[2], out endPort))
return true;
else
return false;
}
else
{
return false;
}
}
/// 端口 扫描
static void Scan(IPAddress ip, int startPort, int endPort)
{
Random rand = new Random((int)DateTime.Now.Ticks);
for (int port = startPort; port < endPort; port )
{
Socket scanSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
//寻找一个未使用的端口进行绑定
do
{
try
{
scanSocket.Bind(new IPEndPoint(IPAddress.Any, rand.Next(65535)));
break;
}
catch
{
//绑定失败
}
} while (true);
try
{
scanSocket.BeginConnect(new IPEndPoint(ip, port), ScanCallBack, new ArrayList() { scanSocket, port });
}
catch
{
continue;
}
}
}
/// BeginConnect的回调函数 异步Connect的结果
static void ScanCallBack(IAsyncResult result)
{
// 解析 回调函数输入 参数
ArrayList arrList = (ArrayList)result.AsyncState;
Socket scanSocket = (Socket)arrList[0];
int port = (int)arrList[1];
// 判断端口是否开放
if (result.IsCompleted && scanSocket.Connected)
{
Console.WriteLine("端口: {0,5} 状态: Open", port);
}
scanSocket.Close();
}
}
}
