Date: Thu, 12 Jan 2012 11:11:39 +0100 From: Ed Schouten <ed@80386.nl> To: Eitan Adler <lists@eitanadler.com> Cc: jilles@freebsd.org, FreeBSD Hackers <freebsd-hackers@freebsd.org>, Colin Percival <cperciva@freebsd.org> Subject: Re: dup3 syscall - atomic set O_CLOEXEC with dup2 Message-ID: <20120112101139.GE5300@hoeg.nl> In-Reply-To: <20120112095656.GD5300@hoeg.nl> References: <CAF6rxg=EjkwFbXQt3i2Nnz6_dcZtdek-2YdqyZnAdVPxVaWR_Q@mail.gmail.com> <20120112095656.GD5300@hoeg.nl>
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--mjUDp/cLGeqUhYyE Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable * Ed Schouten <ed@80386.nl>, 20120112 10:56: > I suspect that not long after we add dup3(), some random person asks us > to implement F_DUP3FD. Any chance you can implement this without using a > system call, but through fcntl()? Never mind. This seems to be non-trivial, as fcntl() just takes a single parameter and dup3() requires the newfd and the flags. --=20 Ed Schouten <ed@80386.nl> WWW: http://80386.nl/ --mjUDp/cLGeqUhYyE Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iQIcBAEBAgAGBQJPDrHbAAoJEG5e2P40kaK7xMgP/jyRYgPl97fnbSz4COGdXNG8 Nzb9VKzVGi+Q9PJDRjkmpLk/y1CK+PzBgomS5rjHvE8/kl/ai164eKT+wKaCUzIa DSJGE1rC0NpJaVqQlL8WrrMloK27w162Z1jyDLWR2vtsDp6lgBCpgAk5NEapq3li wtnkjgB3Xu/Hm89mHxpLgSXQsUvGV2F7Alk9wSYupZhqL6XHsTBbA60PhRFbgL3+ P3IrIvt/58IUJ6FiBwjfNEDqeiFDuJC7E7pDTspqa8l89pbC30yPoBgvS9N2zqSO AXnVA6Q6DHDBw0yDHkjgYgetC8g3Wr0JnXqbbEiPb9wk+lXjiYzgXehPgTfa1oIA 70i44f9vW9GTNdnLtse9OBXAo0mRR7bjMnOar7bHdVjh3wSyEiTG8sn9+jxQRhsn CHMU4k3w9OekuD3DS/sLPbv65MYurNJUjuakU6VQObCzAuWWR/Q6ufR6Hce4Gr8C 66f7KGtFb2rxk8iLGzeRhxtgxOneVlx6BssNHbCPacqL0UD1eKYuMPQv2gaJVnAK sSZsr5yzugwmcHTNkQ8Y4QVG5bml7zJ/S/ws8PC19MTabn9cvJnfLhJGSSWci40p M9SEz8fcvErGfNeBfOjjO0Ts+C7+mz70k4xw6pA77djkUuwkrTuLtF91wO0cHU82 djHT84UnSFAkov7qpjRu =wjkw -----END PGP SIGNATURE----- --mjUDp/cLGeqUhYyE--
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