[Mono-bugs] [Bug 75351][Maj] New - UDP Socket does not receive broadcast UDP packets

[bugzilla-daemon at bugzilla.ximian.com]

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Changed by will at memefeeder.com.

http://bugzilla.ximian.com/show_bug.cgi?id=75351

--- shadow/75351	2005-06-22 09:26:21.000000000 -0400
+++ shadow/75351.tmp.16780	2005-06-22 09:26:21.000000000 -0400
@@ -0,0 +1,113 @@
+Bug#: 75351
+Product: Mono: Class Libraries
+Version: 1.1
+OS: GNU/Linux [Other]
+OS Details: Gentoo 2005.0 running mono 1.1.7
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Major
+Component: System
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: will at memefeeder.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: UDP Socket does not receive broadcast UDP packets
+
+Description of Problem:
+
+A Socket object bound to a specific UDP port does not receive UDP broadcast
+packets sent to that port
+
+
+Steps to reproduce the problem:
+1. Run attached code
+
+
+Actual Results:
+
+Call to Socket.Receive() never returns.
+
+
+Expected Results:
+
+Socket.Receive() should return, having received the packet.
+
+
+How often does this happen? 
+
+Every time.
+
+
+Additional Information:
+
+Socket receives packet as expected when running under Microsoft .NET
+runtime (1.0 and 1.1)
+
+
+/* --- BEGIN CODE --- */
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Threading;
+
+namespace UdpBroadcastTest
+{
+	class Class1
+	{
+		[STAThread]
+		static void Main(string[] args)
+		{
+			Thread lThread = new Thread(new ThreadStart(RunListener));
+			lThread.Start();
+
+			Thread sThread = new Thread(new ThreadStart(RunSender));
+			sThread.Start();
+		}
+
+		static void RunListener()
+		{
+			Console.WriteLine("Listener running...");
+			Socket mySock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram,
+ProtocolType.Udp);
+			
+			IPEndPoint myEP = new
+IPEndPoint(Dns.Resolve(Dns.GetHostName()).AddressList[0], 9999);
+			mySock.Bind(myEP);
+			
+			while(true)
+			{
+				byte[] buf = new byte[1024];
+				Console.WriteLine("Listener listening...");
+				int numRecvd = mySock.Receive(buf);
+
+				Console.WriteLine("Listener received packet, size "+numRecvd);
+			}
+		}
+
+		static void RunSender()
+		{
+			Socket mySock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram,
+ProtocolType.Udp);
+			mySock.SetSocketOption(SocketOptionLevel.Socket,
+SocketOptionName.Broadcast, 1);
+						
+			//IPEndPoint myEP = new
+IPEndPoint(Dns.Resolve(Dns.GetHostName()).AddressList[0], 9999);
+			IPEndPoint myEP = new IPEndPoint(IPAddress.Parse("255.255.255.255"), 9999);
+			
+			byte[] buf = new byte[1024];
+
+			while(true)
+			{
+				Thread.Sleep(2000);
+
+				Console.WriteLine("Sender sending");
+				mySock.SendTo(buf, 63, SocketFlags.None, myEP);
+			}
+		}
+	}
+}
+/* --- END CODE --- */