From: Theo Buehler <tb@theobuehler.org>
Subject: Re: [PATCH]: Add POSIX O_CLOFORK flag
To: "Todd C. Miller" <Todd.Miller@sudo.ws>
Cc: guenther@openbsd.org, tech@openbsd.org
Date: Thu, 11 Dec 2025 19:37:51 +0100

On Thu, Dec 11, 2025 at 11:23:30AM -0700, Todd C. Miller wrote:
> On Thu, 11 Dec 2025 13:29:59 +0100, Theo Buehler wrote:
> 
> > Found this piece of this submission in one of my trees. Do we want this
> > or was that omitted deliberately?
> 
> I think we do want the fstat.c change, but it needs a man page
> addition as well.

thanks. like this?

Index: fstat.1
===================================================================
RCS file: /cvs/src/usr.bin/fstat/fstat.1,v
diff -u -p -r1.59 fstat.1
--- fstat.1	31 Mar 2019 06:40:26 -0000	1.59
+++ fstat.1	11 Dec 2025 18:37:06 -0000
@@ -175,6 +175,8 @@ Open for reading
 Open for writing
 .It e
 close-on-exec flag is set
+.It f
+close-on-fork flag is set
 .It p
 Opened after
 .Xr pledge 2
Index: fstat.c
===================================================================
RCS file: /cvs/src/usr.bin/fstat/fstat.c,v
diff -u -p -r1.103 fstat.c
--- fstat.c	20 Jun 2022 01:39:44 -0000	1.103
+++ fstat.c	11 Dec 2025 18:36:17 -0000
@@ -482,6 +482,8 @@ vtrans(struct kinfo_file *kf)
 		strlcat(rwep, "w", sizeof rwep);
 	if (kf->fd_ofileflags & UF_EXCLOSE)
 		strlcat(rwep, "e", sizeof rwep);
+	if (kf->fd_ofileflags & UF_FORKCLOSE)
+		strlcat(rwep, "f", sizeof rwep);
 	if (kf->fd_ofileflags & UF_PLEDGED)
 		strlcat(rwep, "p", sizeof rwep);
 	printf(" %4s", rwep);