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/* Unparse run-time options
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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 <argz.h>
#include <hurd/fsys.h>
#include <string.h>
#include "netfs.h"
#include "fsys_S.h"
/* This code is originally from libdiskfs; things surrounded by `#if NOT_YET'
are pending libnetfs being fleshed out some more. */
/* Implement fsys_get_options as described in <hurd/fsys.defs>. */
error_t
netfs_S_fsys_get_options (fsys_t fsys,
char **data, mach_msg_type_number_t *data_len)
{
error_t err;
char *argz = 0;
struct port_info *port =
ports_lookup_port (netfs_port_bucket, fsys, netfs_control_class);
if (!port)
return EOPNOTSUPP;
#if NOT_YET
rwlock_reader_lock (&netfs_fsys_lock);
#endif
err = netfs_get_options (&argz, data_len);
#if NOT_YET
rwlock_reader_unlock (&netfs_fsys_lock);
#endif
if (!err && *data_len > 0)
/* 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);
}
ports_port_deref (port);
return err;
}
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