1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/*
* ntfsendian.h
*
* Copyright (C) 1998, 1999 Martin von Löwis
* Copyright (C) 1998 Joseph Malicki
* Copyright (C) 1999 Werner Seiler
*/
#ifdef __linux__
/* This defines __cpu_to_le16 on Linux 2.1 and higher. */
#include <asm/byteorder.h>
#endif
#ifdef __cpu_to_le16
#define CPU_TO_LE16(a) __cpu_to_le16(a)
#define CPU_TO_LE32(a) __cpu_to_le32(a)
#define CPU_TO_LE64(a) __cpu_to_le64(a)
#define LE16_TO_CPU(a) __cpu_to_le16(a)
#define LE32_TO_CPU(a) __cpu_to_le32(a)
#define LE64_TO_CPU(a) __cpu_to_le64(a)
#else
#ifdef __LITTLE_ENDIAN
#define CPU_TO_LE16(a) (a)
#define CPU_TO_LE32(a) (a)
#define CPU_TO_LE64(a) (a)
#define LE16_TO_CPU(a) (a)
#define LE32_TO_CPU(a) (a)
#define LE64_TO_CPU(a) (a)
#else
/* Routines for big-endian machines */
#ifdef __BIG_ENDIAN
/* We hope its big-endian, not PDP-endian :) */
#define CPU_TO_LE16(a) ((((a)&0xFF) << 8)|((a) >> 8))
#define CPU_TO_LE32(a) ((((a) & 0xFF) << 24) | (((a) & 0xFF00) << 8) | \
(((a) & 0xFF0000) >> 8) | ((a) >> 24))
#define CPU_TO_LE64(a) ((CPU_TO_LE32(a)<<32)|CPU_TO_LE32((a)>>32)
#define LE16_TO_CPU(a) CPU_TO_LE16(a)
#define LE32_TO_CPU(a) CPU_TO_LE32(a)
#define LE64_TO_CPU(a) CPU_TO_LE64(a)
#else
#error Please define Endianness - __BIG_ENDIAN or __LITTLE_ENDIAN or add OS-specific macros
#endif /* __BIG_ENDIAN */
#endif /* __LITTLE_ENDIAN */
#endif /* __cpu_to_le16 */
#define NTFS_GETU8(p) (*(ntfs_u8*)(p))
#define NTFS_GETU16(p) ((ntfs_u16)LE16_TO_CPU(*(ntfs_u16*)(p)))
#define NTFS_GETU24(p) ((ntfs_u32)NTFS_GETU16(p) | ((ntfs_u32)NTFS_GETU8(((char*)(p))+2)<<16))
#define NTFS_GETU32(p) ((ntfs_u32)LE32_TO_CPU(*(ntfs_u32*)(p)))
#define NTFS_GETU40(p) ((ntfs_u64)NTFS_GETU32(p)|(((ntfs_u64)NTFS_GETU8(((char*)(p))+4))<<32))
#define NTFS_GETU48(p) ((ntfs_u64)NTFS_GETU32(p)|(((ntfs_u64)NTFS_GETU16(((char*)(p))+4))<<32))
#define NTFS_GETU56(p) ((ntfs_u64)NTFS_GETU32(p)|(((ntfs_u64)NTFS_GETU24(((char*)(p))+4))<<32))
#define NTFS_GETU64(p) ((ntfs_u64)LE64_TO_CPU(*(ntfs_u64*)(p)))
/* Macros writing unsigned integers */
#define NTFS_PUTU8(p,v) ((*(ntfs_u8*)(p))=(v))
#define NTFS_PUTU16(p,v) ((*(ntfs_u16*)(p))=CPU_TO_LE16(v))
#define NTFS_PUTU24(p,v) NTFS_PUTU16(p,(v) & 0xFFFF);\
NTFS_PUTU8(((char*)(p))+2,(v)>>16)
#define NTFS_PUTU32(p,v) ((*(ntfs_u32*)(p))=CPU_TO_LE32(v))
#define NTFS_PUTU64(p,v) ((*(ntfs_u64*)(p))=CPU_TO_LE64(v))
/* Macros reading signed integers */
#define NTFS_GETS8(p) ((*(ntfs_s8*)(p)))
#define NTFS_GETS16(p) ((ntfs_s16)LE16_TO_CPU(*(short*)(p)))
#define NTFS_GETS24(p) (NTFS_GETU24(p) < 0x800000 ? (int)NTFS_GETU24(p) : (int)(NTFS_GETU24(p) - 0x1000000))
#define NTFS_GETS32(p) ((ntfs_s32)LE32_TO_CPU(*(int*)(p)))
#define NTFS_GETS40(p) (((ntfs_s64)NTFS_GETU32(p)) | (((ntfs_s64)NTFS_GETS8(((char*)(p))+4)) << 32))
#define NTFS_GETS48(p) (((ntfs_s64)NTFS_GETU32(p)) | (((ntfs_s64)NTFS_GETS16(((char*)(p))+4)) << 32))
#define NTFS_GETS56(p) (((ntfs_s64)NTFS_GETU32(p)) | (((ntfs_s64)NTFS_GETS24(((char*)(p))+4)) << 32))
#define NTFS_GETS64(p) ((ntfs_s64)NTFS_GETU64(p))
#define NTFS_PUTS8(p,v) NTFS_PUTU8(p,v)
#define NTFS_PUTS16(p,v) NTFS_PUTU16(p,v)
#define NTFS_PUTS24(p,v) NTFS_PUTU24(p,v)
#define NTFS_PUTS32(p,v) NTFS_PUTU32(p,v)
|
