The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/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 */

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