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/*
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;
}
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