LoginSignup
0
0

More than 1 year has passed since last update.

cscの作法 その296

Posted at

概要

cscの作法、調べてみた。
udpを叩いてみた。
練習問題やってみた。

練習問題

upnpのm-searchを実装せよ。

サンプルコード

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;

namespace ConsoleTest
{
	class Program {
		static void Main(string[] args) {
			UdpClient udp = new UdpClient(50000);
			udp.EnableBroadcast = true;
			string str = "M-SEARCH * HTTP/1.1\r\n" +
				"HOST: 239.255.255.250:1900\r\n" +
				"MX: 5\r\n" +
				"MAN: \"ssdp:discover\"\r\n" +
				"ST: upnp:rootdevice\r\n\r\n\r\n";
			byte[] sendBytes = Encoding.UTF8.GetBytes(str);
			//while (true)
			{
				udp.Send(sendBytes, sendBytes.Length, new IPEndPoint(IPAddress.Broadcast, 1900));
				IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, 0);
				Byte[] receiveBytes = udp.Receive(ref endPoint);
				string returnData = Encoding.ASCII.GetString(receiveBytes);
				Console.WriteLine("recv: " + returnData.ToString());
			}
		}
	}
}

実行結果

>ms
recv: HTTP/1.1 200 OK
CACHE-CONTROL: max-age=120
Location: http://192.168.1.1:2869/upnp/rootdevice.xml
SERVER: IGD-HTTP/1.1 UPnP/1.0 UPnP-Device-Host/1.0
ST: upnp:rootdevice
EXT:
USN: uuid:af4238da-50bdc726::upnp:rootdevice

以上。

0
0
0

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
  3. You can use dark theme
What you can do with signing up
0
0