tools.go_stun

     1.1 --- a/main.go	Sat Apr 25 18:12:41 2020 +0300
     1.2 +++ b/main.go	Thu Feb 25 23:36:40 2021 +0300
     1.3 @@ -93,6 +93,7 @@
     1.4  func handler(conn net.Conn) {
     1.5  	_s_tm := time.Now()
     1.6  	remoteAddr := conn.RemoteAddr().String()
     1.7 +	res := ""
     1.8  
     1.9  	defer func() {
    1.10  		var err error
    1.11 @@ -115,25 +116,19 @@
    1.12  	addr_last := len(addr_spit) - 1
    1.13  	addr := strings.Join(addr_spit[:addr_last], ":")
    1.14  
    1.15 -	var dns string
    1.16  	dns_names, err := net.LookupAddr(strings.Trim(addr, "[] "))
    1.17  	if err != nil {
    1.18  		log_warn("Fail to resolve dns name for %s: %v", remoteAddr, err)
    1.19  	} else {
    1.20  		for _, dns_name := range dns_names {
    1.21 -			dns += "Name: " + dns_name + "\n"
    1.22 +			res += fmt.Sprintf("Name: %s\r\n", dns_name)
    1.23  		}
    1.24  	}
    1.25 -	addr = "IP: " + addr + "\n"
    1.26 -	port := "Port: " + addr_spit[addr_last] + "\n"
    1.27 +	res += fmt.Sprintf("IP: %s\r\n", addr)
    1.28 +	res += fmt.Sprintf("Port: %s\r\n", addr_spit[addr_last])
    1.29 +	res += "\n"
    1.30  
    1.31 -	if _, err := conn.Write([]byte(addr)); err != nil {
    1.32 -		panic(err.Error())
    1.33 -	}
    1.34 -	if _, err := conn.Write([]byte(dns)); err != nil {
    1.35 -		panic(err.Error())
    1.36 -	}
    1.37 -	if _, err := conn.Write([]byte(port)); err != nil {
    1.38 +	if _, err := conn.Write([]byte(res)); err != nil {
    1.39  		panic(err.Error())
    1.40  	}
    1.41  }