From 0023fce38d3bd6ee0e9b6ff8708fee1195057846 Mon Sep 17 00:00:00 2001
From: Barry Pollard <barry_pollard@hotmail.com>
Date: Sun, 22 Sep 2019 21:17:12 +0100
Subject: http: lowercase headernames for HTTP/2 and HTTP/3

Closes #4401
Fixes #4400
---
 lib/vquic/quiche.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/vquic/quiche.c')

diff --git a/lib/vquic/quiche.c b/lib/vquic/quiche.c
index 4d53d1535..b5548cc2f 100644
--- a/lib/vquic/quiche.c
+++ b/lib/vquic/quiche.c
@@ -646,8 +646,10 @@ static CURLcode http_request(struct connectdata *conn, const void *mem,
       nva[i].name_len = strlen((char *)nva[i].name);
     }
     else {
-      nva[i].name = (unsigned char *)hdbuf;
       nva[i].name_len = (size_t)(end - hdbuf);
+      /* Lower case the header name for HTTP/3 */
+      Curl_strntolower((char *)hdbuf, hdbuf, nva[i].name_len);
+      nva[i].name = (unsigned char *)hdbuf;
     }
     hdbuf = end + 1;
     while(*hdbuf == ' ' || *hdbuf == '\t')
-- 
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