linux-only jail possible?

[John Nielsen]

On Saturday 06 March 2010 03:12:38 Ed Schouten wrote:
> * Ed Schouten <ed at 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.

Thanks! I'll give this a shot. BTW I'm running 8-STABLE.. not sure I 
included that info previously.

> 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.
>