// $Id: unify-isiunlinkable.c 1917 2005-03-18 00:22:06Z ensc $    --*- c -*--

// Copyright (C) 2005 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
//  
// 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; version 2 of the License.
//  
// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.


#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include "unify.h"
#include "vserver.h"


UnifyStatus
Unify_isIUnlinkable(char const *filename)
{
  uint_least32_t const		V = VC_IATTR_IUNLINK|VC_IATTR_IMMUTABLE;
  
  uint_least32_t		flags;
  uint_least32_t		mask = V;

  if (vc_get_iattr(filename, 0, &flags, &mask)==-1 || (mask & V) != V)
    return unifyUNSUPPORTED;

  return (flags & V)==V  ? unifyBUSY : unifyUINLINKABLE;
}