From 7d20bd0b101ca646e39d566386f87550d5f21612 Mon Sep 17 00:00:00 2001
From: Gerald Combs <gerald@wireshark.org>
Date: Mon, 12 Dec 2022 11:48:58 -0800
Subject: [PATCH] Extcap: Clean up our fifo in non-blocking mode.

Use O_NONBLOCK when opening our fifo for cleanup.

Ping #18715
---
 extcap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extcap.c b/extcap.c
index e5794a3c3e..f27337e2bd 100644
--- a/extcap.c
+++ b/extcap.c
@@ -1348,7 +1348,7 @@ gboolean extcap_session_stop(capture_session *cap_session)
              * here to let dumpcap return from the select() call. This has no
              * effect if dumpcap is not waiting.
              */
-            int fd = ws_open(interface_opts->extcap_fifo, O_WRONLY, 0000);
+            int fd = ws_open(interface_opts->extcap_fifo, O_WRONLY|O_NONBLOCK, 0000);
             if (fd != -1) {
                 close(fd);
             }