写了一个端口映射工具, 代码贴出来下

这类工具挺实用的, 嗯有必要写一个, 放到github上  https://github.com/nsnail/PortMapNet

名字随便起的就叫PortMapNet好了

希望有好心人接着弄个界面啥的 搞个完整版的portmap tools for .net

主要代码如下, 也可以直接下载编译版使用(.net2.0) , ...怎么找不着上传文件在哪?   保存这张图片改扩展名7z吧 ---->   http://pic002.cnblogs.com/images/2012/16981/2012011613360243.jpg

代码比较简单 注释啥的就木时间弄了有了

 

对了 截图上一个 

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Configuration;
  4 using System.Net;
  5 using System.Net.Sockets;
  6 using System.Runtime.InteropServices;
  7 using System.Text;
  8 using System.Threading;
  9 using log4net;
 10 
 11 namespace portmap_net
 12 {
 13     internal class program
 14     {
 15         #region Fields (6)
 16 
 17         private static StringBuilder _console_buf = new StringBuilder();
 18         private static int _id_plus;
 19         private static readonly ILog _l4n = LogManager.GetLogger(typeof(program));
 20         private static readonly Dictionary<int, stat_obj> _stat_info = new Dictionary<int, stat_obj>();
 21         public const string product_version = "0.1.113";
 22         public const string product_version_addl = "beta";
 23 
 24         #endregion Fields
 25 
 26         #region Methods (8)
 27 
 28         // Private Methods (8) 
 29 
 30         private static List<work_group> load_maps_cfg()
 31         {
 32             string maps_cfg = ConfigurationManager.AppSettings["portmaps"];
 33             if (string.IsNullOrEmpty(maps_cfg))
 34                 throw new Exception("配置文件错误: 缺少PortMap配置");
 35 
 36             string[] tmp1 = maps_cfg.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
 37             if (tmp1.Length == 0)
 38                 throw new Exception("配置文件错误: 缺少PortMap配置");
 39 
 40             List<work_group> rtn = new List<work_group>();
 41             foreach (string tmp2 in tmp1)
 42             {
 43                 string[] tmp3 = tmp2.Split(new[] { '|' });
 44                 if (tmp3.Length != 2)
 45                     throw new Exception("配置文件错误: 每组PortMap配置必须为2个节点");
 46                 work_group rtn_item = new work_group { _id = ++_id_plus };
 47                 for (int i = 0; i != 2; ++i)
 48                 {
 49                     string[] tmp4 = tmp3[i].Split(new[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
 50                     if (tmp4.Length != 2)
 51                         throw new Exception("配置文件错误: IP节点格式错误");
 52                     IPAddress ip = IPAddress.Any;
 53                     if (i == 0 && tmp4[0] != "*" && !IPAddress.TryParse(tmp4[0], out ip))
 54                         throw new Exception("配置文件错误: IP节点格式错误");
 55                     ushort port;
 56                     if (!ushort.TryParse(tmp4[1], out port))
 57                         throw new Exception("配置文件错误: IP节点格式错误");
 58                     if (i == 0)
 59                         rtn_item._point_in = new IPEndPoint(ip, port);
 60                     if (i != 1) continue;
 61                     rtn_item._point_out_host = tmp4[0];
 62                     rtn_item._point_out_port = port;
 63                 }
 64                 rtn.Add(rtn_item);
 65             }
 66             return rtn;
 67         }
 68 
 69         private static void Main()
 70         {
 71             List<work_group> maps_list;
 72             try
 73             {
 74                 maps_list = load_maps_cfg();
 75             }
 76             catch (Exception exp)
 77             {
 78                 Console.WriteLine(program_ver);
 79                 Console.WriteLine(exp.Message);
 80                 system("pause");
 81                 return;
 82             }
 83             foreach (var map_item in maps_list)
 84             {
 85                 map_start(map_item);
 86             }
 87 
 88             Console.CursorVisible = false;
 89             while (true)
 90             {
 91                 show_stat();
 92                 Thread.Sleep(2000);
 93             }
 94         }
 95 
 96         private static void map_start(work_group work)
 97         {
 98             Socket sock_svr = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
 99             bool start_error = false;
100             try
101             {
102                 sock_svr.Bind(work._point_in);
103                 sock_svr.Listen(10);
104                 sock_svr.BeginAccept(on_local_connected, new object[] { sock_svr, work });
105             }
106             catch (Exception exp)
107             {
108                 _l4n.Error(exp.Message);
109                 start_error = true;
110             }
111             finally
112             {
113                 _stat_info.Add(work._id, new stat_obj(work._point_in.ToString(), work._point_out_host + ":" + work._point_out_port, !start_error, 0, 0, 0));
114             }
115         }
116 
117         private static void on_local_connected(IAsyncResult ar)
118         {
119             object[] ar_arr = ar.AsyncState as object[];
120             Socket sock_svr = ar_arr[0] as Socket;
121             work_group work = (work_group)ar_arr[1];
122 
123             ++_stat_info[work._id]._connect_cnt;
124             Socket sock_cli = sock_svr.EndAccept(ar);
125             sock_svr.BeginAccept(on_local_connected, ar.AsyncState);
126             Socket sock_cli_remote = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
127             try
128             {
129                 sock_cli_remote.Connect(work._point_out_host, work._point_out_port);
130             }
131             catch (Exception exp)
132             {
133                 _l4n.Warn(exp.Message);
134                 try
135                 {
136                     sock_cli.Shutdown(SocketShutdown.Both);
137                     sock_cli_remote.Shutdown(SocketShutdown.Both);
138                     sock_cli.Close();
139                     sock_cli_remote.Close();
140                 }
141                 catch (Exception)
142                 { }
143                 --_stat_info[work._id]._connect_cnt;
144                 return;
145             }
146             Thread t_send = new Thread(recv_and_send_caller) { IsBackground = true };
147             Thread t_recv = new Thread(recv_and_send_caller) { IsBackground = true };
148             t_send.Start(new object[] { sock_cli, sock_cli_remote, work._id, true });
149             t_recv.Start(new object[] { sock_cli_remote, sock_cli, work._id, false });
150             t_send.Join();
151             t_recv.Join();
152             --_stat_info[work._id]._connect_cnt;
153         }
154 
155         private static void recv_and_send(Socket from_sock, Socket to_sock, Action<int> send_complete)
156         {
157             byte[] recv_buf = new byte[4096];
158             int recv_len;
159             while ((recv_len = from_sock.Receive(recv_buf)) > 0)
160             {
161                 to_sock.Send(recv_buf, 0, recv_len, SocketFlags.None);
162                 send_complete(recv_len);
163             }
164         }
165 
166         private static void recv_and_send_caller(object thread_param)
167         {
168             object[] param_arr = thread_param as object[];
169             Socket sock1 = param_arr[0] as Socket;
170             Socket sock2 = param_arr[1] as Socket;
171             try
172             {
173                 recv_and_send(sock1, sock2, bytes =>
174                 {
175                     stat_obj stat = _stat_info[(int)param_arr[2]];
176                     if ((bool)param_arr[3])
177                         stat._bytes_send += bytes;
178                     else
179                         stat._bytes_recv += bytes;
180                 });
181             }
182             catch (Exception exp)
183             {
184                 _l4n.Info(exp.Message);
185                 try
186                 {
187                     sock1.Shutdown(SocketShutdown.Both);
188                     sock2.Shutdown(SocketShutdown.Both);
189                     sock1.Close();
190                     sock2.Close();
191                 }
192                 catch (Exception) { }
193             }
194         }
195 
196         private static void show_stat()
197         {
198             StringBuilder curr_buf = new StringBuilder();
199             curr_buf.AppendLine(program_ver);
200             curr_buf.AppendLine(stat_obj._print_head);
201             foreach (KeyValuePair<int, stat_obj> item in _stat_info)
202             {
203                 curr_buf.AppendLine(item.Value.ToString());
204             }
205             if (_console_buf.Equals(curr_buf))
206                 return;
207             Console.Clear();
208             Console.WriteLine(curr_buf);
209             _console_buf = curr_buf;
210         }
211 
212         [DllImport("msvcrt.dll")]
213         private static extern bool system(string str);
214 
215         #endregion Methods
216 
217         private const string program_ver = @"[PortMapNet(0.1)  http://www.beta-1.cn]
218 --------------------------------------------------";
219     }
220 }