From b7a06dee500f222431da7c95a06bf4a86a7c0371 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 29 Oct 2024 08:09:32 +0100
Subject: [PATCH] setopt: return error for bad input to CURLOPT_RTSP_REQUEST

And leave the value untouched. Previously, an unrecognized argument
would reset it to RTSPREQ_NONE (and still return OK).

Closes #15440
---
 lib/setopt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/setopt.c b/lib/setopt.c
index 48642602a7..4f06972127 100644
--- a/lib/setopt.c
+++ b/lib/setopt.c
@@ -1261,7 +1261,7 @@ static CURLcode setopt_long(struct Curl_easy *data, CURLoption option,
       rtspreq = RTSPREQ_RECEIVE;
       break;
     default:
-      rtspreq = RTSPREQ_NONE;
+      return CURLE_BAD_FUNCTION_ARGUMENT;
     }
 
     data->set.rtspreq = rtspreq;