// Copyright 2017 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. use std::net::TcpListener; use std::net::TcpStream; use std::io::{self, Read, Write}; fn handle_client(stream: TcpStream) -> io::Result<()> { stream.write_fmt(format!("message received")) } fn main() { if let Ok(listener) = TcpListener::bind("127.0.0.1:8080") { for incoming in listener.incoming() { if let Ok(stream) = incoming { handle_client(stream); } } } }