用vc调用delphi实现的http上传

利用本程序可以获取本地或者网络中的某一台电脑的地址-use of the procedures for access to the local network or a particular computer"s address

try to punch hole in firewalls via UDP

MD5 (Message-Digest algorithm 5) is a widely used, partially insecure[1] cryptographic hash function with a 128-bit hash value. As an Internet standard (RFC 1321), MD5 has been employed in a wide variety of security applications, and is also commonly used to check the integrity of files. An MD5 hash is typically expressed as a 32 digit hexadecimal number.

prg5_2.c : UDP客户。该程序通过命令行参数输入服务器IP地址和发给服务器的信息，然后执行UDP套接字客户端的基本过程。-prg5_2.c : UDP customers. The program command line parameter input server IP addresses and the information sent to the server, then the implementation of UDP socket client the basic process.

可以查看网卡的MACu地址

封装了所有网络通信接口得类，可以为了节省很多重复写代码得工作。-Packaging of all network communication interface in the category, in order to save a lot of duplication in the work of writing code.

一个TCPCASE用MONDOM打电话的程序-TCPCASE using a procedure called MONDOM

IP数据包捕获类，能使网卡工作在混杂模式，监听来自网络的所有数据包-IP packet capture category, enable the network card in promiscuous mode, monitoring from the network all packets

这是个socket网络编程，使用的是udp的方式用异步通信来实现的，这个程序可供刚刚学习socket编程的人员参考借鉴。里面用到的都是最基础的东西。所以有助于学习。

一个ftp服务器的例子，推荐下载 --An example of ftp server,recommend