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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Wed, 29 Aug 2012 16:44:50 +0000 (UTC)
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Subject: svn commit: r239863 - stable/8/lib/libc/sys
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Author: kib
Date: Wed Aug 29 16:44:50 2012
New Revision: 239863
URL: http://svn.freebsd.org/changeset/base/239863

Log:
  MFC r238835:
  Document F_DUP2FD_CLOEXEC.

Modified:
  stable/8/lib/libc/sys/fcntl.2
Directory Properties:
  stable/8/lib/libc/   (props changed)
  stable/8/lib/libc/sys/   (props changed)

Modified: stable/8/lib/libc/sys/fcntl.2
==============================================================================
--- stable/8/lib/libc/sys/fcntl.2	Wed Aug 29 16:43:57 2012	(r239862)
+++ stable/8/lib/libc/sys/fcntl.2	Wed Aug 29 16:44:50 2012	(r239863)
@@ -28,7 +28,7 @@
 .\"     @(#)fcntl.2	8.2 (Berkeley) 1/12/94
 .\" $FreeBSD$
 .\"
-.Dd July 18, 2012
+.Dd July 27, 2012
 .Dt FCNTL 2
 .Os
 .Sh NAME
@@ -54,7 +54,7 @@ Depending on the value of
 .Fn fcntl
 can take an additional third argument
 .Fa "int arg" .
-.Bl -tag -width F_DUPFD_CLOEXEC
+.Bl -tag -width F_DUP2FD_CLOEXEC
 .It Dv F_DUPFD
 Return a new descriptor as follows:
 .Pp
@@ -94,13 +94,23 @@ It is functionally equivalent to
 .Bd -literal -offset indent
 dup2(fd, arg)
 .Ed
+.It Dv F_DU2PFD_CLOEXEC
+Like
+.Dv F_DUP2FD ,
+but the
+.Dv FD_CLOEXEC
+flag associated with the new file descriptor is set.
 .Pp
 The
 .Dv F_DUP2FD
-constant is not portable, so it should not be used if portability is needed.
+and
+.Dv F_DUP2DF_CLOEXEC
+constants are not portable, so they should not be used if
+portability is needed.
 Use
 .Fn dup2
-instead.
+instead of
+.Dv F_DUP2FD .
 .It Dv F_GETFD
 Get the close-on-exec flag associated with the file descriptor
 .Fa fd