2 * Header file iso9660.h - assorted structure definitions and typecasts.
3 * specific to iso9660 filesystem.
5 Written by Eric Youngdale (1993).
7 Copyright 1993 Yggdrasil Computing, Incorporated
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
27 * The isofs filesystem constants/structures
30 #define ISODCL(from, to) (to - from + 1)
32 struct iso_volume_descriptor
{
33 char type
[ISODCL(1,1)]; /* 711 */
35 char version
[ISODCL(7,7)];
36 char data
[ISODCL(8,2048)];
39 /* volume descriptor types */
40 #define ISO_VD_PRIMARY 1
41 #define ISO_VD_END 255
43 #define ISO_STANDARD_ID "CD001"
45 struct iso_primary_descriptor
{
46 char type
[ISODCL ( 1, 1)]; /* 711 */
47 char id
[ISODCL ( 2, 6)];
48 char version
[ISODCL ( 7, 7)]; /* 711 */
49 char unused1
[ISODCL ( 8, 8)];
50 char system_id
[ISODCL ( 9, 40)]; /* achars */
51 char volume_id
[ISODCL ( 41, 72)]; /* dchars */
52 char unused2
[ISODCL ( 73, 80)];
53 char volume_space_size
[ISODCL ( 81, 88)]; /* 733 */
54 char unused3
[ISODCL ( 89, 120)];
55 char volume_set_size
[ISODCL (121, 124)]; /* 723 */
56 char volume_sequence_number
[ISODCL (125, 128)]; /* 723 */
57 char logical_block_size
[ISODCL (129, 132)]; /* 723 */
58 char path_table_size
[ISODCL (133, 140)]; /* 733 */
59 char type_l_path_table
[ISODCL (141, 144)]; /* 731 */
60 char opt_type_l_path_table
[ISODCL (145, 148)]; /* 731 */
61 char type_m_path_table
[ISODCL (149, 152)]; /* 732 */
62 char opt_type_m_path_table
[ISODCL (153, 156)]; /* 732 */
63 char root_directory_record
[ISODCL (157, 190)]; /* 9.1 */
64 char volume_set_id
[ISODCL (191, 318)]; /* dchars */
65 char publisher_id
[ISODCL (319, 446)]; /* achars */
66 char preparer_id
[ISODCL (447, 574)]; /* achars */
67 char application_id
[ISODCL (575, 702)]; /* achars */
68 char copyright_file_id
[ISODCL (703, 739)]; /* 7.5 dchars */
69 char abstract_file_id
[ISODCL (740, 776)]; /* 7.5 dchars */
70 char bibliographic_file_id
[ISODCL (777, 813)]; /* 7.5 dchars */
71 char creation_date
[ISODCL (814, 830)]; /* 8.4.26.1 */
72 char modification_date
[ISODCL (831, 847)]; /* 8.4.26.1 */
73 char expiration_date
[ISODCL (848, 864)]; /* 8.4.26.1 */
74 char effective_date
[ISODCL (865, 881)]; /* 8.4.26.1 */
75 char file_structure_version
[ISODCL (882, 882)]; /* 711 */
76 char unused4
[ISODCL (883, 883)];
77 char application_data
[ISODCL (884, 1395)];
78 char unused5
[ISODCL (1396, 2048)];
81 /* We use this to help us look up the parent inode numbers. */
83 struct iso_path_table
{
84 unsigned char name_len
[2]; /* 721 */
85 char extent
[4]; /* 731 */
86 char parent
[2]; /* 721 */
90 struct iso_directory_record
{
91 unsigned char length
[ISODCL (1, 1)]; /* 711 */
92 char ext_attr_length
[ISODCL (2, 2)]; /* 711 */
93 char extent
[ISODCL (3, 10)]; /* 733 */
94 char size
[ISODCL (11, 18)]; /* 733 */
95 char date
[ISODCL (19, 25)]; /* 7 by 711 */
96 char flags
[ISODCL (26, 26)];
97 char file_unit_size
[ISODCL (27, 27)]; /* 711 */
98 char interleave
[ISODCL (28, 28)]; /* 711 */
99 char volume_sequence_number
[ISODCL (29, 32)]; /* 723 */
100 unsigned char name_len
[ISODCL (33, 33)]; /* 711 */
101 char name
[34]; /* Not really, but we need something here */