/* 
   Copyright (C) 1994 Free Software Foundation

   This program 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.

   This program 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 "priv.h"
#include "fs_S.h"

kern_return_t
diskfs_S_file_access (struct protid *cred,
		      int type)
{
  struct node *np;
  error_t err;
  
  if (!cred)
    return EOPNOTSUPP;

  if (type & ~(R_OK|W_OK|X_OK))
    return EINVAL;

  np = cred->po->np;
  mutex_lock (&np->lock);
  err = 0;
  if (type & R_OK)
    err = diskfs_access (np, S_IREAD, cred);
  if (!err && (type & W_OK))
    err = diskfs_access (np, S_IWRITE, cred);
  if (!err && (type & X_OK))
    err = diskfs_access (np, S_IEXEC, cred);
  mutex_unlock (&np->lock);
  
  return err;
}