release/src/router/ntfs-3g/include/ntfs-3g/types.h

   1 /*
   2  * types.h - Misc type definitions not related to on-disk structure.
   3  *           Originated from the Linux-NTFS project.
   4  *
   5  * Copyright (c) 2000-2004 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 NTFS-3G
  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 _NTFS_TYPES_H
  24 #define _NTFS_TYPES_H
  25
  26 #ifdef HAVE_CONFIG_H
  27 #include "config.h"
  28 #endif
  29
  30 #if HAVE_STDINT_H || !HAVE_CONFIG_H
  31 #include <stdint.h>
  32 #endif
  33 #ifdef HAVE_SYS_TYPES_H
  34 #include <sys/types.h>
  35 #endif
  36
  37 typedef uint8_t  u8;                    /* Unsigned types of an exact size */
  38 typedef uint16_t u16;
  39 typedef uint32_t u32;
  40 typedef uint64_t u64;
  41
  42 typedef int8_t  s8;                     /* Signed types of an exact size */
  43 typedef int16_t s16;
  44 typedef int32_t s32;
  45 typedef int64_t s64;
  46
  47 typedef u16 le16;
  48 typedef u32 le32;
  49 typedef u64 le64;
  50
  51 /*
  52  * Declare sle{16,32,64} to be unsigned because we do not want sign extension
  53  * on BE architectures.
  54  */
  55 typedef u16 sle16;
  56 typedef u32 sle32;
  57 typedef u64 sle64;
  58
  59 typedef u16 ntfschar;                   /* 2-byte Unicode character type. */
  60 #define UCHAR_T_SIZE_BITS 1
  61
  62 /*
  63  * Clusters are signed 64-bit values on NTFS volumes.  We define two types, LCN
  64  * and VCN, to allow for type checking and better code readability.
  65  */
  66 typedef s64 VCN;
  67 typedef sle64 leVCN;
  68 typedef s64 LCN;
  69 typedef sle64 leLCN;
  70
  71 /*
  72  * The NTFS journal $LogFile uses log sequence numbers which are signed 64-bit
  73  * values.  We define our own type LSN, to allow for type checking and better
  74  * code readability.
  75  */
  76 typedef s64 LSN;
  77 typedef sle64 leLSN;
  78
  79 /*
  80  * Cygwin has a collision between our BOOL and <windef.h>'s
  81  * As long as this file will be included after <windows.h> were fine.
  82  */
  83 #ifndef _WINDEF_H
  84 /**
  85  * enum BOOL - These are just to make the code more readable...
  86  */
  87 typedef enum {
  88 #ifndef FALSE
  89         FALSE = 0,
  90 #endif
  91 #ifndef NO
  92         NO = 0,
  93 #endif
  94 #ifndef ZERO
  95         ZERO = 0,
  96 #endif
  97 #ifndef TRUE
  98         TRUE = 1,
  99 #endif
 100 #ifndef YES
 101         YES = 1,
 102 #endif
 103 #ifndef ONE
 104         ONE = 1,
 105 #endif
 106 } BOOL;
 107 #endif /* defined _WINDEF_H */
 108
 109 /**
 110  * enum IGNORE_CASE_BOOL -
 111  */
 112 typedef enum {
 113         CASE_SENSITIVE = 0,
 114         IGNORE_CASE = 1,
 115 } IGNORE_CASE_BOOL;
 116
 117 #define STATUS_OK                               (0)
 118 #define STATUS_ERROR                            (-1)
 119 #define STATUS_RESIDENT_ATTRIBUTE_FILLED_MFT    (-2)
 120 #define STATUS_KEEP_SEARCHING                   (-3)
 121 #define STATUS_NOT_FOUND                        (-4)
 122
 123 /*
 124  *      Force alignment in a struct if required by processor
 125  */
 126 union ALIGNMENT {
 127         u64 u64align;
 128         void *ptralign;
 129 } ;
 130
 131 #endif /* defined _NTFS_TYPES_H */
 132