ReactOS 0.4.15-dev-8219-ge8b88cf
msdos_fs.h
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1/* msdos_fs.h - MS-DOS filesystem constants/structures
3 This program is free software: you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation, either version 3 of the License, or
6 (at your option) any later version.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
12
13 You should have received a copy of the GNU General Public License
14 along with this program. If not, see <http://www.gnu.org/licenses/>.
15
16 The complete text of the GNU General Public License
17 can be found in /usr/share/common-licenses/GPL-3 file.
18*/
19
20#ifndef _MSDOS_FS_H
21#define _MSDOS_FS_H
22
23#ifndef __REACTOS__
24#include <stdint.h>
25#endif
26
27#define SECTOR_SIZE 512 /* sector size (bytes) */
28#define MSDOS_DPS (SECTOR_SIZE / sizeof(struct msdos_dir_entry))
29#define MSDOS_DPS_BITS 4 /* log2(MSDOS_DPS) */
30#define MSDOS_DIR_BITS 5 /* log2(sizeof(struct msdos_dir_entry)) */
31
32#define ATTR_NONE 0 /* no attribute bits */
33#define ATTR_RO 1 /* read-only */
34#define ATTR_HIDDEN 2 /* hidden */
35#define ATTR_SYS 4 /* system */
36#define ATTR_VOLUME 8 /* volume label */
37#define ATTR_DIR 16 /* directory */
38#define ATTR_ARCH 32 /* archived */
39
40/* attribute bits that are copied "as is" */
41#define ATTR_UNUSED (ATTR_VOLUME | ATTR_ARCH | ATTR_SYS | ATTR_HIDDEN)
42
43#define DELETED_FLAG 0xe5 /* marks file as deleted when in name[0] */
44#define IS_FREE(n) (!*(n) || *(n) == DELETED_FLAG)
45
46#define MSDOS_NAME 11 /* maximum name length */
47#define MSDOS_DOT ". " /* ".", padded to MSDOS_NAME chars */
48#define MSDOS_DOTDOT ".. " /* "..", padded to MSDOS_NAME chars */
49
50#ifdef __REACTOS__
51#include <pshpack1.h>
52#endif
53
54struct msdos_dir_entry {
55 uint8_t name[MSDOS_NAME]; /* name including extension */
56 uint8_t attr; /* attribute bits */
57 uint8_t lcase; /* Case for base and extension */
58 uint8_t ctime_cs; /* Creation time, centiseconds (0-199) */
59 uint16_t ctime; /* Creation time */
60 uint16_t cdate; /* Creation date */
61 uint16_t adate; /* Last access date */
62 uint16_t starthi; /* High 16 bits of cluster in FAT32 */
63 uint16_t time, date, start; /* time, date and first cluster */
64 uint32_t size; /* file size (in bytes) */
66
67#ifdef __REACTOS__
68#include <poppack.h>
69#endif
70
71#endif /* _MSDOS_FS_H */
unsigned short int uint16_t
Definition: acefiex.h:54
UINT32 uint32_t
Definition: types.h:75
#define __attribute__(x)
Definition: wpp_private.h:207
GLuint GLenum GLsizei GLsizei GLint GLint GLboolean packed
Definition: glext.h:9271
#define MSDOS_NAME
Definition: msdos_fs.h:46
BYTE uint8_t
Definition: msvideo1.c:66
Definition: mkdosfs.c:467
uint16_t date
Definition: msdos_fs.h:63
uint16_t cdate
Definition: msdos_fs.h:60
uint16_t adate
Definition: msdos_fs.h:61
uint16_t starthi
Definition: msdos_fs.h:62
uint8_t attr
Definition: msdos_fs.h:56
uint32_t size
Definition: msdos_fs.h:64
__u16 start
Definition: mkdosfs.c:476
uint16_t ctime
Definition: msdos_fs.h:59
uint8_t ctime_cs
Definition: msdos_fs.h:58
__u16 time
Definition: mkdosfs.c:476
uint8_t lcase
Definition: msdos_fs.h:57
Definition: name.c:39