SSL unexpected EOF error due to non-blocking CircularBufferStream

To reproduce:

1. Fresh clone of the repository, open the sln
2. Open IrcBot.cs, change line 159 to client.Connect(server, true, registrationInfo); (to enable ssl).
3. Start the “MarkovTextBot” sample
4. When prompted, enter “connect chat.freenode.net” (which listens on port 6697 for SSL connections)

The following exception is thrown:

System.AggregateException occurred
  HResult=0x80131500
  Message=One or more errors occurred.
  Source=<Cannot evaluate the exception source>
  StackTrace:
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at System.Threading.Tasks.Task.Wait()
   at IrcDotNet.StandardIrcClient.GetDataStream(Boolean useSsl, String targetHost) in C:\Documents\projects\IrcDotNet\source\IrcDotNet\StandardIrcClient.cs:line 592
   at IrcDotNet.StandardIrcClient.ConnectCompleted(Object sender, SocketAsyncEventArgs e) in C:\Documents\projects\IrcDotNet\source\IrcDotNet\StandardIrcClient.cs:line 444
   at System.Net.Sockets.SocketAsyncEventArgs.OnCompleted(SocketAsyncEventArgs e)
   at System.Net.Sockets.SocketAsyncEventArgs.ExecutionCallback(Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

Inner Exception 1:
IOException:  Received an unexpected EOF or 0 bytes from the transport stream.

Where the InnerException is:

System.IO.IOException:  Received an unexpected EOF or 0 bytes from the transport stream.
   at System.Net.FixedSizeReader.CheckCompletionBeforeNextRead(Int32 bytes)
   at System.Net.FixedSizeReader.ReadCallback(IAsyncResult transportResult)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Net.Security.SslState.InternalEndProcessAuthentication(LazyAsyncResult lazyResult)
   at System.Net.Security.SslState.EndProcessAuthentication(IAsyncResult result)
   at System.Net.Security.SslStream.EndAuthenticateAsClient(IAsyncResult asyncResult)
   at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)

I tried the same with another IRC server (also over SSL), with the same result.

[oreleraki]

@canton7, Hi, after seeing there are no maintainers, i asked by the Owner and became a Maintainer. I will soon start updating the libraries and my first goals will be fixing crashes. If you will be patient a bit more, i will check this matter and hope to implement a fix soon.

[wledfor2]

Does anyone have a temp workaround for this issue? It’s very crippling, with more and more IRC networks going SSL only.