From 10922666b3f1c723a67f5f4022fe7fdb7b8cf546 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Danyi=20D=C3=A1vid?= <danyi.david@gmail.com>
Date: Fri, 2 Mar 2018 22:40:00 +0100
Subject: [PATCH] * receiving 0 byte pending packages aswell, some may come
 from appiot

---
 src/wakaama-client.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/wakaama-client.cpp b/src/wakaama-client.cpp
index 29c663c..9ee6711 100644
--- a/src/wakaama-client.cpp
+++ b/src/wakaama-client.cpp
@@ -106,8 +106,11 @@ void ArduinoClient::doWorkStep() {
     // wait for socket event
     SerialUSB.println(F("parsePacket()"));
     size_t pending = data.nbIOT->socketBytesPending(data.sock);
-    if (pending > 0) {
+    if (pending >= 0) {
         size_t numBytes = data.nbIOT->socketReceive(data.sock, packetBuffer, pending);
+        if (pending == 0) {
+            return;
+        }
 
         connection_t * connP;
         connP = connection_find(data.connList, data.sock);