/*
 * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.  */

#ifndef _ISOFS_FS_H
#define _ISOFS_FS_H

/*
 * The isofs filesystem constants/structures
 */

#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_END 255

#define ISO_STANDARD_ID "CD001"

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 unused3			[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)];
};

/* 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