From 156ddfc4e86a8fabaad100349f105e300bcf1234 Mon Sep 17 00:00:00 2001
From: Stephen Halter <halter73@gmail.com>
Date: Wed, 4 Oct 2017 12:38:19 -0700
Subject: [PATCH] Fix EOF handling of TlsStream.ReadAsync (#2094)

---
 src/Kestrel.Tls/TlsStream.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Kestrel.Tls/TlsStream.cs b/src/Kestrel.Tls/TlsStream.cs
index 6cf8c5e8e0..0b1b583167 100644
--- a/src/Kestrel.Tls/TlsStream.cs
+++ b/src/Kestrel.Tls/TlsStream.cs
@@ -139,6 +139,12 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Tls
             if (OpenSsl.BIO_ctrl_pending(_inputBio) == 0)
             {
                 var bytesRead = await _innerStream.ReadAsync(_inputBuffer, 0, _inputBuffer.Length, cancellationToken);
+
+                if (bytesRead == 0)
+                {
+                    return 0;
+                }
+
                 OpenSsl.BIO_write(_inputBio, _inputBuffer, 0, bytesRead);
             }