From a57d98bccbe81d4939d29829a6497207dc203287 Mon Sep 17 00:00:00 2001
From: Igor Kalashnikov <igor.kalashnikov@me.com>
Date: Mon, 15 Feb 2016 18:55:52 +0300
Subject: [PATCH] unsigned char for http_parser_execute

---
 http_parser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/http_parser.c b/http_parser.c
index 98e0b9f2..1c6314fe 100644
--- a/http_parser.c
+++ b/http_parser.c
@@ -1572,7 +1572,7 @@ size_t http_parser_execute (http_parser *parser,
             REEXECUTE();
           }
 
-          if (!lenient && !IS_HEADER_CHAR(ch)) {
+          if (!lenient && !IS_HEADER_CHAR((unsigned char)ch)) {
             SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
             goto error;
           }