socket - cheyiliu/All-in-One GitHub Wiki ref www.gnu.org/s/libc/manual/pdf/libc.pdf or http://www.gnu.org/software/libc/manual/html_node/Sockets.html#Sockets for Sockets demo android localSocket https://github.com/cheyiliu/test4c/tree/master/socket https://github.com/cheyiliu/test4java/tree/master/src/com/sun/stun https://github.com/cheyiliu/test4java/tree/master/src/test/socket