这是一套基于socketserver客户端至服务端多线程读取电表加密机功能程序，实现身份认证和对电表控制密文读取的功能。-This is a set of read meter encryption machine socketserver client to the server-based multi-threaded functional program, authentication and control ciphertext read the meter.

SDL(Simple DirectMedia Layer)是一个跨平台的多媒体和游戏开发包,提供2D,音频,事件驱动,多线程和定时器 等服务,并有大量的扩充开发包,如TCP/IP网络,游戏角色,混音等.SDL是用C开发的,但也有Perl,PHP,Delphi等多种语言的版本.-The source code to this release has been signed by Sam Lantinga. You can get the public key from any keyserv

Talk to the keyserver on a privileged port on the part of a calling program.

key_call.c, Interface to keyserver.