Beej's Guide to Network Programming

Using Internet Sockets

 ​​http://www.retran.com/beej/index.html​​

Berkeley sockets

​​http://en.wikipedia.org/wiki/Berkeley_sockets​​

Sockets Tutorial

​​http://www.linuxhowtos.org/C_C++/socket.htm​​

ieee

​​http://pubs.opengroup.org/onlinepubs/000095399/functions/contents.html​​