From 5b99f2504f553edfd31ce5d0b05f825dd8dc4632 Mon Sep 17 00:00:00 2001
From: Guus Sliepen <guus@meshlink.io>
Date: Sat, 9 Aug 2014 19:14:38 +0200
Subject: [PATCH] Update snd.una when receiving an ACK in the SYN_RECEIVED
 state.

---
 utcp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/utcp.c b/utcp.c
index 15f6374..d10c1e1 100644
--- a/utcp.c
+++ b/utcp.c
@@ -597,6 +597,8 @@ int utcp_recv(struct utcp *utcp, const void *data, size_t len) {
 		
 		if(c->state != ESTABLISHED)
 			goto reset;
+
+		c->snd.una = hdr.ack;
 		break;
 	case ESTABLISHED:
 	case CLOSE_WAIT:
-- 
2.39.2