From owner-svn-src-head@FreeBSD.ORG  Sun Jul  5 20:20:09 2009
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id C10A0106566C;
	Sun,  5 Jul 2009 20:20:09 +0000 (UTC) (envelope-from pjd@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id AF0888FC16;
	Sun,  5 Jul 2009 20:20:09 +0000 (UTC) (envelope-from pjd@FreeBSD.org)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id n65KK9HV058767;
	Sun, 5 Jul 2009 20:20:09 GMT (envelope-from pjd@svn.freebsd.org)
Received: (from pjd@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id n65KK9Cs058765;
	Sun, 5 Jul 2009 20:20:09 GMT (envelope-from pjd@svn.freebsd.org)
Message-Id: <200907052020.n65KK9Cs058765@svn.freebsd.org>
From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Date: Sun, 5 Jul 2009 20:20:09 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r195380 - head/lib/libc/sys
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 05 Jul 2009 20:20:10 -0000

Author: pjd
Date: Sun Jul  5 20:20:09 2009
New Revision: 195380
URL: http://svn.freebsd.org/changeset/base/195380

Log:
  - Don't suggest opening file for writing in preparation for fexecve(2).
  - execve(2)/fexecve(2) won't return ETXTBSY if file is open for reading.
  
  Approved by:	re (kib)

Modified:
  head/lib/libc/sys/execve.2

Modified: head/lib/libc/sys/execve.2
==============================================================================
--- head/lib/libc/sys/execve.2	Sun Jul  5 18:17:37 2009	(r195379)
+++ head/lib/libc/sys/execve.2	Sun Jul  5 20:20:09 2009	(r195380)
@@ -220,13 +220,11 @@ Since execute permission is checked by
 .Fn fexecve ,
 the file descriptor
 .Fa fd
-need not have been
-opened with the
+need not have been opened with the
 .Dv O_EXEC
 flag.
-However, if the file to be executed denies read and write
-permission for the process preparing to do the exec, the only way to
-provide the
+However, if the file to be executed denies read permission for the process
+preparing to do the exec, the only way to provide the
 .Fa fd
 to
 .Fn fexecve
@@ -234,6 +232,7 @@ is to use the
 .Dv O_EXEC
 flag when opening
 .Fa fd .
+Note that the file to be executed can not be open for writing.
 .Sh RETURN VALUES
 As the
 .Fn execve
@@ -277,7 +276,7 @@ The new process file has the appropriate
 permission, but has an invalid magic number in its header.
 .It Bq Er ETXTBSY
 The new process file is a pure procedure (shared text)
-file that is currently open for writing or reading by some process.
+file that is currently open for writing by some process.
 .It Bq Er ENOMEM
 The new process requires more virtual memory than
 is allowed by the imposed maximum