From c040a8d7e3f366ff3e217fbfebb62a4004d3aa44 Mon Sep 17 00:00:00 2001
From: chinglee-iot <61685396+chinglee-iot@users.noreply.github.com>
Date: Fri, 10 Feb 2023 10:28:02 +0800
Subject: [PATCH] Cellular transport return socket closed when remote
 disconnected (#922)

* Update the return value if socket is closed by remote
---
 .../tcp_sockets_wrapper/ports/cellular/tcp_sockets_wrapper.c  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/FreeRTOS-Plus/Source/Application-Protocols/network_transport/tcp_sockets_wrapper/ports/cellular/tcp_sockets_wrapper.c b/FreeRTOS-Plus/Source/Application-Protocols/network_transport/tcp_sockets_wrapper/ports/cellular/tcp_sockets_wrapper.c
index b7276352e1..b7467ce155 100644
--- a/FreeRTOS-Plus/Source/Application-Protocols/network_transport/tcp_sockets_wrapper/ports/cellular/tcp_sockets_wrapper.c
+++ b/FreeRTOS-Plus/Source/Application-Protocols/network_transport/tcp_sockets_wrapper/ports/cellular/tcp_sockets_wrapper.c
@@ -349,6 +349,10 @@ static BaseType_t prvNetworkRecvCellular( const cellularSocketWrapper_t * pCellu
     {
         retRecvLength = ( BaseType_t ) recvLength;
     }
+    else if( socketStatus == CELLULAR_SOCKET_CLOSED )
+    {
+        retRecvLength = TCP_SOCKETS_ERRNO_ECLOSED;
+    }
     else
     {
         LogError( ( "prvNetworkRecv failed %d", socketStatus ) );