From owner-freebsd-emulation@FreeBSD.ORG  Sat Mar  6 17:42:04 2010
Return-Path: <owner-freebsd-emulation@FreeBSD.ORG>
Delivered-To: freebsd-emulation@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id A4B45106566B
	for <freebsd-emulation@freebsd.org>;
	Sat,  6 Mar 2010 17:42:04 +0000 (UTC)
	(envelope-from lists@jnielsen.net)
Received: from ns1.jnielsen.net (ns1.jnielsen.net [69.55.238.237])
	by mx1.freebsd.org (Postfix) with ESMTP id 8BB3C8FC12
	for <freebsd-emulation@freebsd.org>;
	Sat,  6 Mar 2010 17:42:04 +0000 (UTC)
Received: from jnielsen-2.local (jn@stealth.jnielsen.net [74.218.226.254])
	(authenticated bits=0)
	by ns1.jnielsen.net (8.12.9p2/8.12.9) with ESMTP id o26Hg1pf038696;
	Sat, 6 Mar 2010 12:42:01 -0500 (EST)
	(envelope-from lists@jnielsen.net)
From: John Nielsen <lists@jnielsen.net>
To: Ed Schouten <ed@80386.nl>
Date: Sat, 6 Mar 2010 12:41:59 -0500
User-Agent: KMail/1.12.4 (Darwin/9.8.0; KDE/4.3.4; i386; ; )
References: <201003021325.27197.lists@jnielsen.net>
	<20100306073117.GE8200@hoeg.nl> <20100306081238.GF8200@hoeg.nl>
In-Reply-To: <20100306081238.GF8200@hoeg.nl>
MIME-Version: 1.0
Content-Type: Text/Plain;
  charset="iso-8859-15"
Content-Transfer-Encoding: 7bit
Message-Id: <201003061241.59580.lists@jnielsen.net>
X-Virus-Scanned: ClamAV version 0.88.4,
	clamav-milter version 0.88.4 on ns1.jnielsen.net
X-Virus-Status: Clean
Cc: freebsd-emulation@freebsd.org
Subject: Re: linux-only jail possible?
X-BeenThere: freebsd-emulation@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Development of Emulators of other operating systems
	<freebsd-emulation.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-emulation>, 
	<mailto:freebsd-emulation-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-emulation>
List-Post: <mailto:freebsd-emulation@freebsd.org>
List-Help: <mailto:freebsd-emulation-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-emulation>, 
	<mailto:freebsd-emulation-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 06 Mar 2010 17:42:04 -0000

On Saturday 06 March 2010 03:12:38 Ed Schouten wrote:
> * Ed Schouten <ed@80386.nl> wrote:
> > Unfortunately it doesn't contain any open() calls on /dev/ptmx, but I
> > found a way to `fix' it:
> >
> > <snip>
> 
> Behold, another way to fix this. Still not beautiful, but in my opinion
> not too bad.

Pretty or not the hack does the job. Thanks again!

For the record the sshd that ships with Fedora 12 also had the same issue, 
and the hack fixes it as well (not surprisingly). (I'll stick with CentOS 
though, since blatantly lying about the kernel version doesn't give me warm 
fuzzies.)

> Index: sys/compat/linprocfs/linprocfs.c
> 
===================================================================
> --- sys/compat/linprocfs/linprocfs.c	(revision 204763)
> +++ sys/compat/linprocfs/linprocfs.c	(working copy)
> @@ -1312,6 +1312,8 @@
>  	    NULL, NULL, NULL, PFS_RD);
>  	pfs_create_file(dir, "status", &linprocfs_doprocstatus,
>  	    NULL, NULL, NULL, PFS_RD);
> +	/* XXX: Hack to make ttyname() work. */
> +	pfs_create_file(dir, "fd", NULL, NULL, NULL, NULL, PFS_RD);
> 
>  	/* /proc/scsi/... */
>  	dir = pfs_create_dir(root, "scsi", NULL, NULL, NULL, 0);
> 
> This creates a bogus file called /proc/%d/fd. Because of this, the
> readlink() call will return ENOTDIR.
>