本人写的一个RADIUS协议，使用标准C/C++写的，用在多个项目里，稳定可靠。 代码简洁。

RADIUS is a C/S structure of the agreement, the client is NAS (Net Access Server first) server running RADIUS client software, any computer can become a RADIUS client. Authentication mechanism of RADIUS protocol, can use PAP, CHAP or Unix login authe