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Date: Wed, 20 Mar 2013 13:18:56 +0400
From: Gleb Smirnoff <glebius@FreeBSD.org>
To: Jilles Tjoelker <jilles@FreeBSD.org>
Subject: Re: svn commit: r248534 - in head: lib/libc/sys share/man/man4
 sys/kern sys/sys
Message-ID: <20130320091856.GI76816@FreeBSD.org>
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On Tue, Mar 19, 2013 at 08:58:18PM +0000, Jilles Tjoelker wrote:
J> Author: jilles
J> Date: Tue Mar 19 20:58:17 2013
J> New Revision: 248534
J> URL: http://svnweb.freebsd.org/changeset/base/248534
J> 
J> Log:
J>   Implement SOCK_CLOEXEC, SOCK_NONBLOCK and MSG_CMSG_CLOEXEC.
J>   
J>   This change allows creating file descriptors with close-on-exec set in some
J>   situations. SOCK_CLOEXEC and SOCK_NONBLOCK can be OR'ed in socket() and
J>   socketpair()'s type parameter, and MSG_CMSG_CLOEXEC to recvmsg() makes file
J>   descriptors (SCM_RIGHTS) atomically close-on-exec.
J>   
J>   The numerical values for SOCK_CLOEXEC and SOCK_NONBLOCK are as in NetBSD.
J>   MSG_CMSG_CLOEXEC is the first free bit for MSG_*.
J>   
J>   The SOCK_* flags are not passed to MAC because this may cause incorrect
J>   failures and can be done later via fcntl() anyway. On the other hand, audit
J>   is expected to cope with the new flags.
J>   
J>   For MSG_CMSG_CLOEXEC, unp_externalize() is extended to take a flags
J>   argument.

IMO, it won't hurt if changes like this (bringing in new functionality)
would bump __FreeBSD_version.

-- 
Totus tuus, Glebius.