From ebdedf67ea07b3e4193d446179970b74764eab0b Mon Sep 17 00:00:00 2001
From: Kartik Naik <kartik@bugqore.com>
Date: Tue, 11 Aug 2026 23:13:36 +0530
Subject: set cloexec on the socket handle in win32 socketpair setfd

---
 tests/compat/pipe2.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tests/compat/pipe2.c b/tests/compat/pipe2.c
index c0189db..3e79575 100644
--- a/tests/compat/pipe2.c
+++ b/tests/compat/pipe2.c
@@ -18,9 +18,10 @@ static int setfd(int fd, int flag)
 {
 	int rc = -1;
 	if (flag & FD_CLOEXEC) {
-		HANDLE h = (HANDLE)_get_osfhandle(fd);
-		if (h != NULL)
-			rc = SetHandleInformation(h, HANDLE_FLAG_INHERIT, 0) == 0 ? -1 : 0;
+		/* fd is a Winsock SOCKET, not a CRT descriptor: use it as a
+		 * handle directly rather than translating with _get_osfhandle. */
+		HANDLE h = (HANDLE)(LONG_PTR)fd;
+		rc = SetHandleInformation(h, HANDLE_FLAG_INHERIT, 0) == 0 ? -1 : 0;
 	}
 	return rc;
 }
-- 
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