From f3487c43eaf7bd195808066316588c767699124f Mon Sep 17 00:00:00 2001
From: Fuu <q.for.xyz@qq.com>
Date: Wed, 9 Oct 2024 17:54:41 +0800
Subject: [PATCH] Close-on-exec by default for received fds

---
 src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index d49e055..9a406f0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -123,7 +123,7 @@ fn recv_with_fd(socket: RawFd, bs: &mut [u8], mut fds: &mut [RawFd]) -> io::Resu
         };
         let (mut msghdr, cmsg_layout, _) = construct_msghdr_for(&mut iov, fds.len());
         let cmsg_buffer = msghdr.msg_control;
-        let count = libc::recvmsg(socket, &mut msghdr as *mut _, 0);
+        let count = libc::recvmsg(socket, &mut msghdr as *mut _, libc::MSG_CMSG_CLOEXEC);
         if count < 0 {
             let error = io::Error::last_os_error();
             alloc::dealloc(cmsg_buffer as *mut _, cmsg_layout);