From 84d51e252db0390b448930cfab49d47ec989d8ef Mon Sep 17 00:00:00 2001
From: Daan De Meyer <daan@amutable.com>
Date: Fri, 20 Mar 2026 22:11:15 +0100
Subject: [PATCH] test-fd-util: Replace dup() with fcntl()

Last remaining use of dup() in the codebase, let's get rid of it.
---
 src/test/test-fd-util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/test/test-fd-util.c b/src/test/test-fd-util.c
index e99d7d0472..338bbc29d0 100644
--- a/src/test/test-fd-util.c
+++ b/src/test/test-fd-util.c
@@ -151,7 +151,7 @@ TEST(fd_move_above_stdio) {
         new_fd = fd_move_above_stdio(new_fd);
         assert_se(new_fd >= 3);
 
-        assert_se(dup(original_stdin) == 0);
+        assert_se(fcntl(original_stdin, F_DUPFD, 0) == 0);
         assert_se(close_nointr(original_stdin) != EBADF);
         assert_se(close_nointr(new_fd) != EBADF);
 }