iso9660.h
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- /*
- * Header file iso9660.h - assorted structure definitions and typecasts.
- * specific to iso9660 filesystem.
- Written by Eric Youngdale (1993).
- Copyright 1993 Yggdrasil Computing, Incorporated
- This program 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, or (at your option)
- any later version.
- This program 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
- /*
- * $Id: iso9660.h,v 1.2 1997/05/17 15:46:44 eric Exp $
- */
- #ifndef _ISOFS_FS_H
- #define _ISOFS_FS_H
- /*
- * The isofs filesystem constants/structures
- */
- /* This part borrowed from the bsd386 isofs */
- #define ISODCL(from, to) (to - from + 1)
- struct iso_volume_descriptor {
- char type[ISODCL(1,1)]; /* 711 */
- char id[ISODCL(2,6)];
- char version[ISODCL(7,7)];
- char data[ISODCL(8,2048)];
- };
- /* volume descriptor types */
- #define ISO_VD_PRIMARY 1
- #define ISO_VD_SUPPLEMENTARY 2 /* Used by Joliet */
- #define ISO_VD_END 255
- #define ISO_STANDARD_ID "CD001"
- #define EL_TORITO_ID "EL TORITO SPECIFICATION"
- #define EL_TORITO_ARCH_x86 0
- #define EL_TORITO_ARCH_PPC 1
- #define EL_TORITO_ARCH_MAC 2
- #define EL_TORITO_BOOTABLE 0x88
- #define EL_TORITO_NOT_BOOTABLE 0
- #define EL_TORITO_MEDIA_NOEMUL 0
- #define EL_TORITO_MEDIA_12FLOP 1
- #define EL_TORITO_MEDIA_144FLOP 2
- #define EL_TORITO_MEDIA_288FLOP 3
- #define EL_TORITO_MEDIA_HD 4
- struct iso_primary_descriptor {
- char type [ISODCL ( 1, 1)]; /* 711 */
- char id [ISODCL ( 2, 6)];
- char version [ISODCL ( 7, 7)]; /* 711 */
- char unused1 [ISODCL ( 8, 8)];
- char system_id [ISODCL ( 9, 40)]; /* achars */
- char volume_id [ISODCL ( 41, 72)]; /* dchars */
- char unused2 [ISODCL ( 73, 80)];
- char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
- char escape_sequences [ISODCL ( 89, 120)];
- char volume_set_size [ISODCL (121, 124)]; /* 723 */
- char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
- char logical_block_size [ISODCL (129, 132)]; /* 723 */
- char path_table_size [ISODCL (133, 140)]; /* 733 */
- char type_l_path_table [ISODCL (141, 144)]; /* 731 */
- char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
- char type_m_path_table [ISODCL (149, 152)]; /* 732 */
- char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
- char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
- char volume_set_id [ISODCL (191, 318)]; /* dchars */
- char publisher_id [ISODCL (319, 446)]; /* achars */
- char preparer_id [ISODCL (447, 574)]; /* achars */
- char application_id [ISODCL (575, 702)]; /* achars */
- char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
- char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
- char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
- char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
- char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
- char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
- char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
- char file_structure_version [ISODCL (882, 882)]; /* 711 */
- char unused4 [ISODCL (883, 883)];
- char application_data [ISODCL (884, 1395)];
- char unused5 [ISODCL (1396, 2048)];
- };
- /* El Torito Boot Record Volume Descriptor */
- struct eltorito_boot_descriptor {
- char type [ISODCL ( 1, 1)]; /* 711 */
- char id [ISODCL ( 2, 6)];
- char version [ISODCL ( 7, 7)]; /* 711 */
- char system_id [ISODCL ( 8, 39)];
- char unused2 [ISODCL ( 40, 71)];
- char bootcat_ptr [ISODCL ( 72 , 75)];
- char unused5 [ISODCL ( 76, 2048)];
- };
- /* Validation entry for El Torito */
- struct eltorito_validation_entry {
- char headerid [ISODCL ( 1, 1)]; /* 711 */
- char arch [ISODCL ( 2, 2)];
- char pad1 [ISODCL ( 3, 4)]; /* 711 */
- char id [ISODCL ( 5, 28)]; /* CD devel/man*/
- char cksum [ISODCL ( 29, 30)];
- char key1 [ISODCL ( 31, 31)];
- char key2 [ISODCL ( 32, 32)];
- };
- /* El Torito initial/default entry in boot catalog */
- struct eltorito_defaultboot_entry {
- char boot_id [ISODCL ( 1, 1)]; /* 711 */
- char boot_media [ISODCL ( 2, 2)];
- char loadseg [ISODCL ( 3, 4)]; /* 711 */
- char sys_type [ISODCL ( 5, 5)];
- char pad1 [ISODCL ( 6, 6)];
- char nsect [ISODCL ( 7, 8)];
- char bootoff [ISODCL ( 9, 12)];
- char pad2 [ISODCL ( 13, 32)];
- };
- /*
- * XXX JS: The next two structures have odd lengths!
- * Some compilers (e.g. on Sun3/mc68020) padd the structures to even length.
- * For this reason, we cannot use sizeof (struct iso_path_table) or
- * sizeof (struct iso_directory_record) to compute on disk sizes.
- * Instead, we use offsetof(..., name) and add the name size.
- * See mkisofs.h
- */
- /* We use this to help us look up the parent inode numbers. */
- struct iso_path_table {
- unsigned char name_len[2]; /* 721 */
- char extent[4]; /* 731 */
- char parent[2]; /* 721 */
- char name[1];
- };
- struct iso_directory_record {
- unsigned char length [ISODCL (1, 1)]; /* 711 */
- char ext_attr_length [ISODCL (2, 2)]; /* 711 */
- char extent [ISODCL (3, 10)]; /* 733 */
- char size [ISODCL (11, 18)]; /* 733 */
- char date [ISODCL (19, 25)]; /* 7 by 711 */
- char flags [ISODCL (26, 26)];
- char file_unit_size [ISODCL (27, 27)]; /* 711 */
- char interleave [ISODCL (28, 28)]; /* 711 */
- char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
- unsigned char name_len [ISODCL (33, 33)]; /* 711 */
- char name [34]; /* Not really, but we need something here */
- };
- #endif
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