#!/usr/bin/ruby # A very basic, low-level, web-server. var port = 8080; var protocol = Socket.getprotobyname( "tcp" ); var sock = (Socket.open(Socket.PF_INET, Socket.SOCK_STREAM, protocol) || die "couldn't open a socket: #{$!}"); # PF_INET to indicate that this socket will connect to the internet domain # SOCK_STREAM indicates a TCP stream, SOCK_DGRAM would indicate UDP communication sock.setsockopt(Socket.SOL_SOCKET, Socket.SO_REUSEADDR, 1) || die "couldn't set socket options: #{$!}"; # SOL_SOCKET to indicate that we are setting an option on the socket instead of the protocol # mark the socket reusable sock.bind(Socket.sockaddr_in(port, Socket.INADDR_ANY)) || die "couldn't bind socket to port #{port}: #{$!}"; # bind our socket to $port, allowing any IP to connect sock.listen(Socket.SOMAXCONN) || die "couldn't listen to port #{port}: #{$!}"; # start listening for incoming connections while (var client = sock.accept) { client.print ("HTTP/1.1 200 OK\r\n" + "Content-Type: text/html; charset=UTF-8\r\n\r\n" + "Goodbye, world!" + "Goodbye, world!\r\n"); client.close; }