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/* Get run-time file system options
Copyright (C) 1995 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <errno.h>
#include <string.h>
#include "priv.h"
error_t
diskfs_S_file_get_fs_options (struct protid *cred,
char **data, unsigned *data_len)
{
error_t err;
char *argz;
if (!cred)
return EOPNOTSUPP;
rwlock_reader_lock (&diskfs_fsys_lock);
err = diskfs_get_options (&argz, data_len);
rwlock_reader_unlock (&diskfs_fsys_lock);
if (!err)
/* Move ARGZ from a malloced buffer into a vm_alloced one. */
{
err = vm_allocate (mach_task_self (), (vm_address_t *)data,
*data_len, 1);
if (!err)
bcopy (argz, *data, *data_len);
free (argz);
}
return err;
}
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