Finger协议源代码阅读笔记的详细介绍
RFC 1288 - The Finger User Information Protocolhttp://www.faqs.org/rfcs/rfc1288.html
C++ String: What is the difference between '/n' and '/r/n'?
http://www.codeguru.com/forum/showthread.php?t=253826
getutent
http://www.cplusplus.com/ref/cstdlib/malloc.html
strcmp
http://www.cplusplus.com/ref/cstring/strcmp.html
struct passwd
http://www.mksxserver.com/docs/man5/struct_passwd.5.asp
memset
http://www.cplusplus.com/ref/cstring/memset.html
malloc
http://www.cplusplus.com/ref/cstdlib/malloc.html
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