Re: kern/59498: Add missing POSIX O_CLOFORK flag

[Ricardo Branco <rbranco%suse.de@localhost>]

On 7/1/25 7:15 PM, Robert Elz via gnats wrote:
> The following reply was made to PR kern/59498; it has been noted by GNATS.
>
> From: Robert Elz <kre%munnari.OZ.AU@localhost>
> To: gnats-bugs%netbsd.org@localhost
> Cc:
> Subject: Re: kern/59498: Add missing POSIX O_CLOFORK flag
> Date: Wed, 02 Jul 2025 00:13:07 +0700
>
>       Date:        Tue,  1 Jul 2025 16:05:00 +0000 (UTC)
>       From:        rbranco%suse.de@localhost
>       Message-ID:  <20250701160500.760D61A9242%mollari.NetBSD.org@localhost>
>   
>   Have you investigated how many (if any, I haven't looked) of
>   the applications in NetBSD simply assume get fcntl(fd, F_GETFD)
>   returning non-zero means that close-on-exec is set ?
>   
>   That's what I always considered the most difficult part of
>   implementing O_CLOFORK -- the alteration of this fairly long
>   held assumption.
>   
>   kre
>   

In this implementation, O_CLOFORK is cleared on exec, so
this point is moot for applications.

Library code needs minor fixing, though.  That can be done
and should be done.

Best,
Ricardo.