From 42a2ce613c748e506129da781856ec8f85c92f26 Mon Sep 17 00:00:00 2001
From: Guus Sliepen <guus@meshlink.io>
Date: Mon, 19 Oct 2015 20:45:31 +0200
Subject: [PATCH] Make sure all of the packet header is set when retransmitting
 packets.

---
 utcp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/utcp.c b/utcp.c
index 047f70f..5ba4eaa 100644
--- a/utcp.c
+++ b/utcp.c
@@ -561,13 +561,14 @@ static void retransmit(struct utcp_connection *c) {
 
 	pkt->hdr.src = c->src;
 	pkt->hdr.dst = c->dst;
+	pkt->hdr.wnd = c->rcv.wnd;
+	pkt->hdr.aux = 0;
 
 	switch(c->state) {
 		case SYN_SENT:
 			// Send our SYN again
 			pkt->hdr.seq = c->snd.iss;
 			pkt->hdr.ack = 0;
-			pkt->hdr.wnd = c->rcv.wnd;
 			pkt->hdr.ctl = SYN;
 			print_packet(c->utcp, "rtrx", pkt, sizeof pkt->hdr);
 			utcp->send(utcp, pkt, sizeof pkt->hdr);
-- 
2.39.2