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/* Get run-time file system options
Copyright (C) 1995, 1996, 1998 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 <argz.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 = 0;
size_t argz_len = 0;
if (! cred)
return EOPNOTSUPP;
err = argz_add (&argz, &argz_len, program_invocation_name);
if (err)
return err;
rwlock_reader_lock (&diskfs_fsys_lock);
err = diskfs_append_args (&argz, &argz_len);
rwlock_reader_unlock (&diskfs_fsys_lock);
if (! err)
/* Move ARGZ from a malloced buffer into a vm_alloced one. */
err = iohelp_return_malloced_buffer (argz, argz_len, data, data_len);
else
free (argz);
return err;
}
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