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TOMOYO Linux Cross Reference
Linux/fs/ntfs/collate.h

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  1 /*
  2  * collate.h - Defines for NTFS kernel collation handling.  Part of the
  3  *             Linux-NTFS project.
  4  *
  5  * Copyright (c) 2004 Anton Altaparmakov
  6  *
  7  * This program/include file is free software; you can redistribute it and/or
  8  * modify it under the terms of the GNU General Public License as published
  9  * by the Free Software Foundation; either version 2 of the License, or
 10  * (at your option) any later version.
 11  *
 12  * This program/include file is distributed in the hope that it will be
 13  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
 14  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 15  * GNU General Public License for more details.
 16  *
 17  * You should have received a copy of the GNU General Public License
 18  * along with this program (in the main directory of the Linux-NTFS
 19  * distribution in the file COPYING); if not, write to the Free Software
 20  * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 21  */
 22 
 23 #ifndef _LINUX_NTFS_COLLATE_H
 24 #define _LINUX_NTFS_COLLATE_H
 25 
 26 #include "types.h"
 27 #include "volume.h"
 28 
 29 static inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) {
 30         int i;
 31 
 32         /*
 33          * FIXME:  At the moment we only support COLLATION_BINARY and
 34          * COLLATION_NTOFS_ULONG, so we return false for everything else for
 35          * now.
 36          */
 37         if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG))
 38                 return false;
 39         i = le32_to_cpu(cr);
 40         if (likely(((i >= 0) && (i <= 0x02)) ||
 41                         ((i >= 0x10) && (i <= 0x13))))
 42                 return true;
 43         return false;
 44 }
 45 
 46 extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULE cr,
 47                 const void *data1, const int data1_len,
 48                 const void *data2, const int data2_len);
 49 
 50 #endif /* _LINUX_NTFS_COLLATE_H */
 51 

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