From 93958499f250da599368de40bc2ba742832fb189 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 21 Feb 2025 12:28:19 +0100
Subject: [PATCH] http: fix the auth check

It used the wrong variable.

Follow-up to d1fc1c4a854d5cc809cc4ae59a9511900228023a
Pointed-out-by: qhill on github
Ref: https://github.com/curl/curl/pull/16406#pullrequestreview-2632734134
Closes #16419
---
 lib/http.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/http.c b/lib/http.c
index 4bbe827a1d91..86e252118438 100644
--- a/lib/http.c
+++ b/lib/http.c
@@ -880,7 +880,7 @@ static bool authcmp(const char *auth, const char *line)
 {
   /* the auth string must not have an alnum following */
   size_t n = strlen(auth);
-  return strncasecompare(auth, line, n) && !ISALNUM(auth[n]);
+  return strncasecompare(auth, line, n) && !ISALNUM(line[n]);
 }
 #endif