k-chow/k/include/k/iso9660.h
Julien CLEMENT d0f6a2592b fix: coding style
Signed-off-by: Julien CLEMENT <julien.clement@epita.fr>
2021-07-12 18:01:40 +02:00

139 lines
5.1 KiB
C

/*
* This file is part of my_read_iso.
*
* my_read_iso is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* my_read_iso is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with my_read_iso; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Copyright Alexandre Becoulet, 2003
* contact : alexandre.becoulet@epita.fr
*/
#ifndef ISO9660_H
# define ISO9660_H
# define __packed __attribute__((__packed__))
/* Structures used for twin values */
struct endian32 {
u32 le; /* little endian value */
u32 be; /* big endian value */
} __packed;
struct endian16 {
u16 le; /* little endian value */
u16 be; /* big endian value */
} __packed;
# define ISO_BLOCK_SIZE 2048
/* ISO9660 Path table structure */
struct iso_path_table_le {
u8 idf_len; /* Identifier name length */
u8 ext_size; /* Extended attribute record length */
u32 data_blk; /* File data block index */
u16 parent_dir; /* Number of the parent dir */
char idf[0]; /* directory name */
} __packed;
/* ISO9660 directory structure */
# define MAX_DIR_DEPTH 8
# define ISO_DATE_LEN 7
enum iso_file_type {
ISO_FILE_HIDDEN = 1, /* File is Hidden */
ISO_FILE_ISDIR = 2, /* Entry is a Directory */
ISO_FILE_ASSOCIAT = 4, /* Entry is an Associated */
ISO_FILE_USEEXT = 8,
/* Information is structured according to the extended attribute record */
ISO_FILE_USEPERM = 16,
/* Permissions are specified in the extended attribute record */
ISO_FILE_MULTIDIR = 128 /* File has more than one directory record */
};
struct iso_dir {
u8 dir_size; /* Length of directory record */
u8 ext_size; /* Extended attribute record length */
struct endian32 data_blk; /* File data block index */
struct endian32 file_size; /* File size */
char date[ISO_DATE_LEN];
u8 type; /* File type (enum iso_file_type) */
/* only valid if the file is recorded in interleave mode */
u8 unit_size; /* File Unit Size */
u8 gap_size; /* Interleave Gap Size */
struct endian16 vol_seq;
u8 idf_len;
char idf[0]; /* file name */
} __packed;
/* ISO9660 Primary volume descriptor structure */
# define ISO_PRIM_VOLDESC_BLOCK 16
# define ISO_SYSIDF_LEN 32
# define ISO_VOLIDF_LEN 32
# define ISO_VOLSET_LEN 128
# define ISO_PUBIDF_LEN 128
# define ISO_DPREP_LEN 128
# define ISO_APP_LEN 128
# define ISO_CPRFIL_LEN 37
# define ISO_ABSFIL_LEN 37
# define ISO_BIBFIL_LEN 37
# define ISO_LDATE_LEN 17
struct iso_prim_voldesc {
u8 vol_desc_type; /* Volume Descriptor Type (1) */
char std_identifier[5]; /* Standard Identifier (CD001) */
u8 vol_desc_version; /* Volume Descriptor Version (1) */
u8 unused1; /* Unused Field */
char syidf[ISO_SYSIDF_LEN]; /* System Identifier */
char vol_idf[ISO_VOLIDF_LEN]; /* Volume Identifier */
u8 unused2[8]; /* Unused Field */
struct endian32 vol_blk_count;
/* Number of logical blocks in the Volume (LE)*/
u8 unused4[32]; /* Unused Field */
struct endian16 vol_set_size; /* The Volume Set size of the Volume */
struct endian16 vol_seq_num; /* The number of the volume in the Set */
struct endian16 vol_blk_size; /* The size in bytes of a Logical Block */
struct endian32 path_table_size; /* Length in bytes of the path table */
u32 le_path_table_blk; /* LittleEndian path table block index */
u32 le_opath_table_blk;
/* LittleEndian optional path table block index */
u32 be_path_table_blk; /* BigEndian path table block index */
u32 be_opath_table_blk; /* BigEndian optional path table block index */
struct iso_dir root_dir; /* Root directory entry */
u8 unused5[34 - sizeof (struct iso_dir)];/* padding */
char volset_idf[ISO_VOLSET_LEN]; /* Name of the multiple volume set */
char pub_idf[ISO_PUBIDF_LEN]; /* Publisher name */
char dprep_idf[ISO_DPREP_LEN]; /* Data preparer name */
char app_idf[ISO_APP_LEN]; /* Application name */
char copyright_file[ISO_CPRFIL_LEN]; /* Copyright file name in root dir */
char abstract_file[ISO_ABSFIL_LEN]; /* Abstract file name in root dir */
char bibli_file[ISO_BIBFIL_LEN]; /* Bibliographic file name in root dir */
char date_creat[ISO_LDATE_LEN]; /* Creation date */
char date_modif[ISO_LDATE_LEN]; /* Modification date */
char date_expir[ISO_LDATE_LEN]; /* Expiration date */
char date_effect[ISO_LDATE_LEN]; /* Effective date */
u8 filestrutc_version; /* File Structure Version (1) */
} __packed;
#endif /* !ISO9660_H */