[Mono-bugs] [Bug 52759][Blo] New - TcpListener fails to generate a port # when 0 passed to the constructor
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bugzilla-daemon@bugzilla.ximian.com
Mon, 12 Jan 2004 02:45:55 -0500 (EST)
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Changed by gregt@artistech.com.
http://bugzilla.ximian.com/show_bug.cgi?id=52759
--- shadow/52759 2004-01-12 02:45:55.000000000 -0500
+++ shadow/52759.tmp.20495 2004-01-12 02:45:55.000000000 -0500
@@ -0,0 +1,71 @@
+Bug#: 52759
+Product: Mono/Class Libraries
+Version: unspecified
+OS:
+OS Details: Windows XP SP1
+Status: NEW
+Resolution:
+Severity:
+Priority: Blocker
+Component: System
+AssignedTo: mono-bugs@ximian.com
+ReportedBy: gregt@artistech.com
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL:
+Summary: TcpListener fails to generate a port # when 0 passed to the constructor
+
+Please fill in this template when reporting a bug, unless you know what
+you are doing.
+Description of Problem:
+TcpListener fails to generate a port # when 0 passed to the constructor.
+The following is in the .Net documentation for TcpListener
+constructor: "If you do not care which local port is used, you can
+specify 0 for the port number. In this case, the service provider will
+assign an available port number between 1024 and 5000." The code sample
+below works in both .Net 1.0 and 1.1.
+
+Steps to reproduce the problem:
+Compile and execute the following code:
+
+using System;
+using System.Net;
+using System.Net.Sockets;
+
+class ConsoleApp
+{
+ [STAThread]
+ static void Main(string[] args)
+ {
+ TcpListener server = null;
+
+ IPEndPoint endp;
+
+ //ip address of the connection
+ IPHostEntry thisHost = Dns.Resolve(Dns.GetHostName());
+ IPAddress addr = thisHost.AddressList[0];
+ server = new TcpListener(addr, 0);
+
+ //start listening
+ server.Start();
+
+ endp = (IPEndPoint) server.LocalEndpoint;
+ Console.WriteLine("address=" + endp.Address.ToString()
++ " port=" + endp.Port.ToString());
+
+ }
+}
+
+Actual Results:
+port=0
+
+Expected Results:
+port # should be from 1024 to 5000.
+
+
+How often does this happen?
+Always.
+
+Additional Information:
+
+Currently using Mono 0.29 on Windows XP SP1.