From 1cc86e79e843ac78e127b22f51e215ec32d7d791 Mon Sep 17 00:00:00 2001
From: Toon Schoenmakers <toon.schoenmakers@copernica.com>
Date: Fri, 6 Nov 2015 15:17:41 +0100
Subject: [PATCH] fix detection of connections that are closed by the server

---
 src/tcpbuffer.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/tcpbuffer.h b/src/tcpbuffer.h
index 492e376..17c034c 100644
--- a/src/tcpbuffer.h
+++ b/src/tcpbuffer.h
@@ -376,8 +376,9 @@ public:
         // when the buffer is very small, we use a lower limit of 512 bytes
         if (ioctl(socket, FIONREAD, &available) != 0) return -1;
 
-        // no need to read anything if there is no input
-        if (available == 0) return 0;
+        // if no bytes are available, it could mean that the connection was closed
+        // by the remote client, so we do have to call read() anyway, assume a default buffer
+        if (available == 0) available = 1;
         
         // add a new buffer
         _buffers.emplace_back(available);