echo service in go

echo.go

package main

import (
	"fmt"
	"net"
	"bufio"
	)

func handleConnection(conn net.Conn) {
	reader := bufio.NewReader(conn)
	for {
		s, err := reader.ReadString('\n')
		if err != nil {
			fmt.Printf("read failed:%v\n", err)
			return
		}
		fmt.Printf("recv: %s", s)
		conn.Write([]byte(s))
	}
}

func main() {
	ln, err := net.Listen("tcp", ":3585")
	if err != nil {
		fmt.Printf("listen failed:%v", err)
		return
	}
	for {
		conn, err := ln.Accept()
		if err != nil {
			fmt.Printf("accept failed:%v", err)
			continue
		}
		go handleConnection(conn)
	}
}