From d069136478b5764e62901a1b0cebb0181335c6bf Mon Sep 17 00:00:00 2001
From: Andy Green <andy@warmcat.com>
Date: Fri, 12 Jan 2018 08:21:42 +0800
Subject: [PATCH] excessive ah hold: stop trying to list headers at sentinel

One header earlier than before

https://github.com/warmcat/libwebsockets/issues/1152
---
 lib/service.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/service.c b/lib/service.c
index e04358e6a..43b3b4201 100644
--- a/lib/service.c
+++ b/lib/service.c
@@ -1073,6 +1073,8 @@ lws_service_fd_tsi(struct lws_context *context, struct lws_pollfd *pollfd, int t
 				c = lws_token_to_string(m);
 				if (!c)
 					break;
+				if (!(*c))
+					break;
 
 				len = lws_hdr_total_length(wsi, m);
 				if (!len || len > sizeof(buf) - 1) {