udp achieve LAN chatting small program

FTP代码。使用API实现通讯，速度快，稳定，代码完整。-FTP code. Realize the use of API communication, fast, stable, and code integrity.

一个多线程实现的ＴＣＰ服务端　listen， 在accept一个请求后，再启动一个线程来处理对应的socket-a multithreaded achieving TCP server listen, accept a request and then start a thread to handle the corresponding socket

以三种方式实现PING操作-three ways to achieve operating PING

c#编的客户端程序，可以发送文件也可以接收文件，适合初次使用c#的用户学习socket编程用-c# addendum to the client program can send documents can also receive documents, suitable for initial use of the c# programming socket users with learning

Buffer封装类，A buffer of memory that takes care of allocating and freeing itself, and has methods for compression and encoding-Buffer Wrapper Class。A buffer of memory that takes care of allocating and freeing itself, and has methods for compression and encoding

学习多播和广播的一个很好的例子,值得初学者看一看-Learning multicast and broadcast a good example of

一个网站的全程序-a site-wide procedures

本程序只对一个IP地址进行，如果要对一段IP进行测试，简单修改程序即可。可将发送放在单独的进程 里(使用fork（）），send_icmp里做成循环，每次重新初始化struct sockaddr_in。那么对接收到的数据 进行分析的proc_icmp（）将多一道对IP报头ip->src字段的判断。-this procedure only a pair of IP addresses, IP to a test, a simple change procedures. This can be placed on a separate process (the use of fork ()), causing Lane send_icmp cycle, each re-initialization struct sockaddr_in. Then Butt received the data analysis proc_icmp () will more than one pair of IP header ip-gt; Src field judgment.

封装的Winsock控件，添加了StartServer和StopServer方法，比原来的Winsock控件有所改进。-Winsock Control package, and added StartServer StopServer methods than the original Winsock control has improved.

在IE的工具条上添加自己的按钮的程序- Increases own button on the IE tool strip the procedure