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/* Parse run-time options
Copyright (C) 1995 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 "priv.h"
#include "fsys_S.h"
/* Implement fsys_set_options as described in <hurd/fsys.defs>. */
kern_return_t
diskfs_S_fsys_set_options (fsys_t fsys,
char *data, mach_msg_type_number_t len,
int do_children)
{
int argc = argz_count (data, len);
char **argv = alloca (sizeof (char *) * (argc + 1));
struct port_info *pt = ports_lookup_port (diskfs_port_bucket, fsys,
diskfs_control_class);
int ret;
error_t
helper (struct node *np)
{
error_t error;
mach_port_t control;
error = fshelp_fetch_control (&np->transbox, &control);
mutex_unlock (&np->lock);
if (!error && (control != MACH_PORT_NULL))
{
error = fsys_set_options (control, data, len, do_children);
mach_port_deallocate (mach_task_self (), control);
}
else
error = 0;
mutex_lock (&np->lock);
return error;
}
if (!pt)
return EOPNOTSUPP;
if (do_children)
{
ret = diskfs_node_iterate (helper);
if (ret)
return ret;
}
argz_extract (data, len, argv);
ret = diskfs_set_options (argc, argv);
ports_port_deref (pt);
return ret;
}
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