From 7f163bcd8ff2b898b5238bed66f81639fb7c0303 Mon Sep 17 00:00:00 2001
From: wonder-mice <wonder.mice@gmail.com>
Date: Fri, 24 Apr 2015 11:58:04 -0700
Subject: [PATCH] Don't require ':' to be a part of header name in
 lws_add_http_header_by_name

Also don't append space after a colon (":"), since it's not required.

RFC 2616, 4.2 Message Headers:

Each header field consists of a name **followed by** a colon (":") and the
field value. The field value MAY be preceded by any amount of LWS,
though a single SP is preferred.
---
 lib/header.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/lib/header.c b/lib/header.c
index 8d83f5cbc..dcf73f5d3 100644
--- a/lib/header.c
+++ b/lib/header.c
@@ -42,11 +42,14 @@ int lws_add_http_header_by_name(struct libwebsocket_context *context,
 		return lws_add_http2_header_by_name(context, wsi, name, value, length, p, end);
 #endif
 	if (name) {
+		char sep = '\0';
 		while (*p < end && *name)
-			*((*p)++) = *name++;
-		if (*p == end)
-			return 1;
-		*((*p)++) = ' ';
+			*((*p)++) = sep = *name++;
+		if (':' != sep) {
+			if (*p == end)
+				return 1;
+			*((*p)++) = ':';
+		}
 	}
 	if (*p + length + 3 >= end)
 		return 1;