From 05159c41efdc2f07ddbe3520330faf2675baa3d6 Mon Sep 17 00:00:00 2001
From: jiangheng <jiangheng12@huawei.com>
Date: Tue, 15 Mar 2022 20:10:07 +0800
Subject: [PATCH] notify app that sock changes to CLOSE_WAAIT

---
 src/core/tcp_in.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/core/tcp_in.c b/src/core/tcp_in.c
index 1652b86..0d3a2f1 100644
--- a/src/core/tcp_in.c
+++ b/src/core/tcp_in.c
@@ -58,6 +58,9 @@
 #if LWIP_ND6_TCP_REACHABILITY_HINTS
 #include "lwip/nd6.h"
 #endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */
+#if USE_LIBOS
+#include "lwip/api.h"
+#endif
 
 #include <string.h>
 
@@ -1032,6 +1035,9 @@ tcp_process(struct tcp_pcb *pcb)
           if (recv_flags & TF_GOT_FIN) {
             tcp_ack_now(pcb);
             pcb->state = CLOSE_WAIT;
+#if USE_LIBOS
+            API_EVENT(((struct netconn *)pcb->callback_arg), NETCONN_EVT_ERROR, 0);
+#endif
           }
         } else {
           /* incorrect ACK number, send RST */
@@ -1050,6 +1056,9 @@ tcp_process(struct tcp_pcb *pcb)
       if (recv_flags & TF_GOT_FIN) { /* passive close */
         tcp_ack_now(pcb);
         pcb->state = CLOSE_WAIT;
+#if USE_LIBOS
+        API_EVENT(((struct netconn *)pcb->callback_arg), NETCONN_EVT_ERROR, 0);
+#endif
       }
       break;
     case FIN_WAIT_1:
@@ -1676,6 +1685,9 @@ tcp_receive(struct tcp_pcb *pcb)
             recv_flags |= TF_GOT_FIN;
             if (pcb->state == ESTABLISHED) { /* force passive close or we can move to active close */
               pcb->state = CLOSE_WAIT;
+#if USE_LIBOS
+              API_EVENT(((struct netconn *)pcb->callback_arg), NETCONN_EVT_ERROR, 0);
+#endif
             }
           }
 
-- 
1.8.3.1