WHOIS Server in Golang

main.go

package main

import (
	"bufio"
	"log"
	"net"
	"strings"
)

func main() {
	ln, err := net.Listen("tcp", ":43")
	if err != nil {
		log.Fatal(err)
	}
	for {
		conn, err := ln.Accept()
		if err != nil {
			log.Fatal(err)
		}
		go handleConnection(conn)
	}
}

func handleConnection(conn net.Conn) {
	message, err := bufio.NewReader(conn).ReadString('\n')
	if err != nil {
		log.Fatal(err)
	}
	log.Print("Message Received:", string(message))
	newmessage := strings.ToUpper(message)
	conn.Write([]byte(newmessage))
	defer conn.Close()
}