From: Daniel Stenberg <daniel@haxx.se>
Date: Sun, 14 Jan 2024 13:42:08 +0000 (+0100)
Subject: cf-h1-proxy: no CURLOPT_USERAGENT in CONNECT with hyper
X-Git-Tag: curl-8_6_0~87
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e186ca6534a21b391550a160b8b15f28d60fda37;p=thirdparty%2Fcurl.git

cf-h1-proxy: no CURLOPT_USERAGENT in CONNECT with hyper

Follow-up to 693cd1679361828a which was incomplete

Ref #12680
Closes #12697
---

diff --git a/lib/cf-h1-proxy.c b/lib/cf-h1-proxy.c
index 2d2d858092..167e5315a8 100644
--- a/lib/cf-h1-proxy.c
+++ b/lib/cf-h1-proxy.c
@@ -725,7 +725,7 @@ static CURLcode start_CONNECT(struct Curl_cfilter *cf,
   }
 
   if(!Curl_checkProxyheaders(data, conn, STRCONST("User-Agent")) &&
-     data->set.str[STRING_USERAGENT]) {
+     data->set.str[STRING_USERAGENT] && *data->set.str[STRING_USERAGENT]) {
     struct dynbuf ua;
     Curl_dyn_init(&ua, DYN_HTTP_REQUEST);
     result = Curl_dyn_addf(&ua, "User-Agent: %s\r\n",