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From: Ulrich Drepper <drepper@gmail.com>
Date: Wed, 4 Apr 2012 07:51:17 -0400
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Subject: Re: [PATCH] nextfd(2)
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>,
        Alexey Dobriyan <adobriyan@gmail.com>, akpm@linux-foundation.org,
        viro@zeniv.linux.org.uk, torvalds@linux-foundation.org,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
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On Mon, Apr 2, 2012 at 19:56, H. Peter Anvin <hpa@zytor.com> wrote:
>
> You can deal with this in one of two ways:
>
> 2. Fix your malloc().
> 1. Use the low level open()/getdents()/close() functions instead of
>   opendir()/readdir()/closedir().

And if their is concern about using opendir() then we can add
something to posix_spawn.  And attribute like POSIX_SPAWN_CLOSEALL and
you then would have to explicitly add dup and open requests for the
descriptors you want to have open.