TlsSocket.EndSend() throws System.InvalidCastException

Question

Hello,

I've run into the following issue: whenever I try to finalize an asynchronous send operation with TlsSocket.EndSend(), I get the following exception:

System.InvalidCastException: InvalidCastException

   at Rebex.Net.TlsSocket.EndSend(IAsyncResult asyncResult)

   at Infrastructure.Communication.SecureTcpClient.SendCallback(IAsyncResult result)

   at tlqh.fehz(Object dqv)

   at System.Threading.ThreadPool.WorkItem.doWork(Object o)

   at System.Threading.Timer.ring()

The code that provokes it looks something like this:

// start asynchronous operation
socket.BeginSend(buffer, 0, buffer.Length, SocketFlags.None, SendCallback, socket);

// ... some lines skipped
private void SendCallback(IAsyncResult result)
{
    TlsSocket socket = (TlsSocket) result.AsyncState;

    socket.EndSend(result);

    //... further processing 
}

I'm using the latest 2018 R1 version of the library under .NET Compact Framework 3.5 on Windows CE.

Could you please help me to solve this issue?
Thanks in advance.

Answer 1

Hello,

It seems that TlsSocket.EndSend throws InvalidCastException when an error occurred during the asynchronous operation. This is caused by a bug in EndSend's error handling. We will fix this quickly and send you a link to a hotfix. Thanks for bringing this issue to our attention!

Comments

Sounds good, thank you!

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I just sent a link to the hotfix to your e-mail address.

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Awesome, thanks a lot!