From 31e7ac07d55328bd1d3baaa7893d1097047a37d6 Mon Sep 17 00:00:00 2001
From: "William A. Rowe Jr" <wrowe@apache.org>
Date: Wed, 28 Jun 2017 02:33:29 +0000
Subject: [PATCH] Appears to resolve the issue to permit single-char
 fieldnames; PR61220

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1800111 13f79535-47bb-0310-9956-ffa450edef68
---
 server/protocol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/protocol.c b/server/protocol.c
index e659135c211..a165f1f8262 100644
--- a/server/protocol.c
+++ b/server/protocol.c
@@ -1111,7 +1111,7 @@ AP_DECLARE(void) ap_get_mime_headers_core(request_rec *r, apr_bucket_brigade *bb
                     return;
                 }
 
-                if (tmp_field == last_field) {
+                if (tmp_field == last_field && !*last_field) {
                     r->status = HTTP_BAD_REQUEST;
                     ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(03453)
                                   "Request header field name was empty");
-- 
2.47.3