From f1b30a39fd3e5ee58addd8c1cae8732024560810 Mon Sep 17 00:00:00 2001
From: Andy Green <andy@warmcat.com>
Date: Tue, 23 Jan 2018 07:03:59 +0800
Subject: [PATCH] close: add LWSS_WAITING_TO_SEND_CLOSE_NOTIFICATION allowed to
 send

https://github.com/warmcat/libwebsockets/issues/1159
---
 lib/output.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/output.c b/lib/output.c
index c8b05cb9e..375ff3ef9 100644
--- a/lib/output.c
+++ b/lib/output.c
@@ -270,9 +270,12 @@ LWS_VISIBLE int lws_write(struct lws *wsi, unsigned char *buf, size_t len,
 
 	if (wsi->state != LWSS_ESTABLISHED &&
 	    ((wsi->state != LWSS_RETURNED_CLOSE_ALREADY &&
+	      wsi->state != LWSS_WAITING_TO_SEND_CLOSE_NOTIFICATION &&
 	      wsi->state != LWSS_AWAITING_CLOSE_ACK) ||
-			    wp != LWS_WRITE_CLOSE))
+			    wp != LWS_WRITE_CLOSE)) {
+		lwsl_debug("binning\n");
 		return 0;
+	}
 
 	/* if we are continuing a frame that already had its header done */