如何获得套接字ID /句柄/描述为一个已经打开的连接？ （.NET，C ++，Delphi的） [英] How to get socket ID/handle/descriptor for an already open connection? (.NET,C++,Delphi)

问题描述

我的问题是说的称号。究竟是如何做呢？

my question is stated in the title. How exactly do I do that?

我有一个开放的连接，我想劫持，并通过它发送我的自定义信息。从我的理解是与插座和他们的处理程序进行。

I have an open connection and I want to "hijack" it and send my custom messages through it. From my understanding that is done with sockets and their handlers.

任何语言会做，但C＃.NET为preferred。

Any language would do but C#.NET is preferred.

感谢您

更新：我究竟想实现我想要实现PostgreSQL的客户保持活动的系统。这意味着让所有的连接开放的PostgreSQL数据库，并每5分钟查询数据库中选择的版本（），以保持连接活着。这就是它。它是用于教育目的的居多。

UPDATE: What exactly am I trying to achieve: I want to implement a keep-alive system for postgresql clients. That means get all the connections open to a postgresql database and every 5 minutes querying the database "select version()" to keep the connection alive. That's about it. It's for educational purposes mostly.

不过，我想用任何类型的连接。

But I want to use this for any kind of connection.

有人吗？想法？没有？ ：（

Anyone? Ideas? Nothing? :(

推荐答案

该库： SharpPcap 承诺这样做的捕获，注入，分析和利用建筑报文的.NET语言，如C＃和VB.NET 的（更多信息）

This library: SharpPcap promises doing capturing, injecting, analyzing and building packets using any .NET language such as C# and VB.NET (more info)

这是由 Wireshark的库，这是肯定的，它可以捕获和分析。

It is the library used by Wireshark and it is for sure that it can capture and analyze.

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