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iso9660.h, iso9660.c, xa.c, xa.h: Add const char's for debugging use.

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iso9660.h: go over yet again for more info from the ECMA 119 spec.
This commit is contained in:
rocky
2005-02-12 18:24:21 +00:00
parent c3dfa6f588
commit 78eabe4f2a
4 changed files with 194 additions and 70 deletions
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241
include/cdio/iso9660.h
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@@ -1,5 +1,5 @@
/*
$Id: iso9660.h,v 1.62 2005/02/12 16:35:35 rocky Exp $
$Id: iso9660.h,v 1.63 2005/02/12 18:24:21 rocky Exp $
Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2003, 2004, 2005 Rocky Bernstein <rocky@panix.com>
@@ -28,6 +28,9 @@
*
* \brief The top-level interface eader for libiso9660: the ISO-9660
* filesystem library; applications include this.
*
* See also the ISO-9660 specification. The freely available European
* equivalant standard is called ECMA-119.
*/
@@ -39,16 +42,22 @@
#include <cdio/cdio.h>
#include <cdio/ds.h>
/** \brief ISO 9660 integer types */
typedef uint8_t iso711_t; /*! 7.1.1 encoded */
typedef uint16_t iso721_t; /*! 7.2.1 encoded */
typedef uint16_t iso722_t; /*! 7.2.2 encoded */
typedef uint32_t iso723_t; /*! 7.2.3 encoded */
typedef uint32_t iso731_t; /*! 7.3.1 encoded */
typedef uint32_t iso732_t; /*! 7.3.2 encoded */
typedef uint64_t iso733_t; /*! 7.3.3 encoded */
typedef char achar_t;
typedef char dchar_t;
/** \brief ISO 9660 Integer and Character types
These are described in the section 7 of the ISO 9660 (or ECMA 119)
specification.
*/
typedef uint8_t iso711_t; /*! See section 7.1.1 */
typedef uint16_t iso721_t; /*! See section 7.2.1 */
typedef uint16_t iso722_t; /*! See section 7.2.2 */
typedef uint32_t iso723_t; /*! See section 7.2.3 */
typedef uint32_t iso731_t; /*! See section 7.3.1 */
typedef uint32_t iso732_t; /*! See section 7.3.2 */
typedef uint64_t iso733_t; /*! See section 7.3.3 */
typedef char achar_t; /*! See section 7.4.1 */
typedef char dchar_t; /*! See section 7.4.1 */
#include <cdio/xa.h>
@@ -96,8 +105,10 @@ extern enum iso_flag_enums {
} iso_flag_enums;
extern enum iso_vd_enums {
ISO_VD_BOOT_RECORD = 0, /**< CD is bootable */
ISO_VD_PRIMARY = 1, /**< Is in any ISO-9660 */
ISO_VD_SUPPLEMENARY = 2, /**< Used by Joliet */
ISO_VD_SUPPLEMENARY = 2, /**< Used by Joliet, for example */
ISO_VD_PARITION = 3, /**< Indicates a partition of a CD */
ISO_VD_END = 255
} iso_vd_enums;
@@ -158,8 +169,10 @@ extern enum iso_vd_enums {
#define ISO_MULTIEXTENT 128 /**< Not final entry of a mult. ext. file */
/**! Volume descriptor types */
#define ISO_VD_BOOT_RECORD 0 /**< CD is bootable */
#define ISO_VD_PRIMARY 1 /**< Is in any ISO-9660 */
#define ISO_VD_SUPPLEMENTARY 2 /**< Used by Joliet */
#define ISO_VD_SUPPLEMENTARY 2 /**< Used by Joliet, for example */
#define ISO_VD_PARITION 3 /**< Indicates a partition of a CD */
#define ISO_VD_END 255
/*! Sector of Primary Volume Descriptor */
@@ -169,9 +182,10 @@ extern enum iso_vd_enums {
#define ISO_EVD_SECTOR 17
/*! String inside frame which identifies an ISO 9660 filesystem. This
string generally occurs one byte into a frame at the beginning of
an ISO_PVD_SECTOR.
string is the "id" field of an iso9660_pvd_t or an iso9660_svd_t.
*/
extern const char ISO_STANDARD_ID[sizeof("CD001")-1];
#define ISO_STANDARD_ID "CD001"
@@ -216,6 +230,8 @@ typedef struct iso9660_dtime_s iso9660_dtime_t;
/*!
\brief ISO-9660 longer-format time structure.
Section 8.4.26.1 of ECMA 119
@see iso9660_ltime
*/
@@ -241,6 +257,8 @@ typedef struct iso9660_ltime_s iso9660_ltime_t;
/*! \brief Format of an ISO-9660 directory record
Section 9.1 of ECMA 119.
This structure may have an odd length depending on how many
characters there are in the filename! Some compilers (e.g. on
Sun3/mc68020) pad the structures to an even length. For this reason,
@@ -252,15 +270,31 @@ typedef struct iso9660_ltime_s iso9660_ltime_t;
@see iso9660_stat
*/
struct iso9660_dir_s {
iso711_t length; /*! 7.1.1 encoded */
iso711_t xa_length; /*! 7.1.1 encoded */
iso733_t extent; /*! 7.3.3 encoded */
iso733_t size; /*! 7.3.3 encoded */
iso9660_dtime_t recording_time; /*! 7 7.1.1-encoded units */
uint8_t file_flags;
iso711_t file_unit_size; /*! 7.1.1 encoded */
iso711_t interleave_gap; /*! 7.1.1 encoded */
iso723_t volume_sequence_number; /*! 7.2.3 encoded */
iso711_t length; /*! Length of Directory record (9.1.1) */
iso711_t xa_length; /*! XA length if XA is used. Otherwise
zero. (9.1.2) */
iso733_t extent; /*! LBA of first local block allocated
to the extent */
iso733_t size; /*! data length of File Section. This
does not include the length of
any XA Records. (9.1.2) */
iso9660_dtime_t recording_time; /*! Recording date and time (9.1.3) */
uint8_t file_flags; /*! If no XA then zero. If a directory,
then bits 2,3 and 7 are zero.
(9.1.6) */
iso711_t file_unit_size; /*! File Unit size for the File
Section if the File Section
is recorded in interleaved
mode. Otherwise zero. (9.1.7) */
iso711_t interleave_gap; /*! Interleave Gap size for the
File Section if the File
Section is interleaved. Otherwise
zero. (9.1.8) */
iso723_t volume_sequence_number; /*! Ordinal number of the volume
in the Volume Set on which
the Extent described by this
Directory Record is
recorded. (9.1.9) */
iso711_t filename_len; /*! number of bytes in filename field */
char filename[EMPTY_ARRAY_SIZE];
} GNUC_PACKED;
@@ -274,37 +308,76 @@ struct iso9660_pvd_s {
iso711_t type; /**< ISO_VD_PRIMARY - 1 */
char id[5]; /**< ISO_STANDARD_ID "CD001"
*/
iso711_t version; /**< value 1 */
char unused1[1];
iso711_t version; /**< value 1 for ECMA 119 */
char unused1[1]; /**< unused - value 0 */
achar_t system_id[ISO_MAX_SYSTEM_ID]; /**< each char is an achar */
dchar_t volume_id[ISO_MAX_VOLUME_ID]; /**< each char is a dchar */
char unused2[8];
uint8_t unused2[8]; /**< unused - value 0 */
iso733_t volume_space_size; /**< total number of
sectors */
char unused3[32];
uint8_t unused3[32]; /**< unused - value 0 */
iso723_t volume_set_size; /**< often 1 */
iso723_t volume_sequence_number; /**< often 1 */
iso723_t logical_block_size; /**< sector size, e.g. 2048 */
iso733_t path_table_size; /**< bytes in path table */
iso731_t type_l_path_table; /**< first sector of little-
endian path table */
iso731_t type_l_path_table; /**< first sector of L Path
Table */
iso731_t opt_type_l_path_table; /**< first sector of optional
little-endian path table */
iso732_t type_m_path_table; /**< first sector of big-
endian path table */
L Path Table */
iso732_t type_m_path_table; /**< first sector of M Path
table */
iso732_t opt_type_m_path_table; /**< first sector of optional
big-endian path table */
M Path table */
iso9660_dir_t root_directory_record; /**< See section 9.1 of
ISO 9660 spec. */
char root_directory_filename; /**< Is '\\0' */
dchar_t volume_set_id[ISO_MAX_VOLUMESET_ID]; /**< dchars */
achar_t publisher_id[ISO_MAX_PUBLISHER_ID]; /**< achars */
achar_t preparer_id[ISO_MAX_PREPARER_ID]; /**< achars */
achar_t application_id[ISO_MAX_APPLICATION_ID]; /**< achars */
dchar_t copyright_file_id[37]; /**< See section 7.5 of
ISO 9660 spec. */
dchar_t abstract_file_id[37]; /**< See section 7.5 of
ISO 9660 spec. */
dchar_t volume_set_id[ISO_MAX_VOLUMESET_ID]; /**< Volume Set of
which the volume is
a member. See
section 8.4.19 */
achar_t publisher_id[ISO_MAX_PUBLISHER_ID]; /**< Publisher of
volume. If the first
character is '_' 0x5F,
the remaining bytes
specify a file
containing the user.
If all bytes are " "
(0x20) no publisher
is specified. See
section 8.4.20 of
ECMA 119 */
achar_t preparer_id[ISO_MAX_PREPARER_ID]; /**< preparer of
volume. If the first
character is '_' 0x5F,
the remaining bytes
specify a file
containing the user.
If all bytes are " "
(0x20) no preparer
is specified.
See section 8.4.21
of ECMA 119 */
achar_t application_id[ISO_MAX_APPLICATION_ID]; /**< application
use to create the
volume. If the first
character is '_' 0x5F,
the remaining bytes
specify a file
containing the user.
If all bytes are " "
(0x20) no application
is specified.
See section of 8.4.22
of ECMA 119 */
dchar_t copyright_file_id[37]; /**< Name of file for
copyright info. If
all bytes are " "
(0x20), then no file
is identified. See
section 8.4.23 of ECMA 119
9660 spec. */
dchar_t abstract_file_id[37]; /**< See section 8.4.24 of
ECMA 119. */
dchar_t bibliographic_file_id[37]; /**< See section 7.5 of
ISO 9660 spec. */
iso9660_ltime_t creation_date; /**< date and time of volume
@@ -312,20 +385,20 @@ struct iso9660_pvd_s {
of the ISO 9660 spec. */
iso9660_ltime_t modification_date; /**< date and time of the most
recent modification.
See section 8.4.26.1 of the
See section 8.4.27 of the
ISO 9660 spec. */
iso9660_ltime_t expiration_date; /**< date and time when volume
expires. See section 8.4.26.1
expires. See section 8.4.28
of the ISO 9660 spec. */
iso9660_ltime_t effective_date; /**< date and time when volume
is effective. See section
8.4.26.1 of the ISO 9660
8.4.29 of the ISO 9660
spec. */
iso711_t file_structure_version; /**< value 1 usually */
char unused4[1];
iso711_t file_structure_version; /**< value 1 for ECMA 119 */
uint8_t unused4[1]; /**< unused - value 0 */
char application_data[512]; /**< Application can put
whatever it wants here. */
char unused5[653];
uint8_t unused5[653]; /**< Unused - value 0 */
} GNUC_PACKED;
typedef struct iso9660_pvd_s iso9660_pvd_t;
@@ -343,13 +416,13 @@ struct iso9660_svd_s {
char id[5]; /**< ISO_STANDARD_ID "CD001"
*/
iso711_t version; /**< value 1 */
char flags; /**< 8.5.3 */
char flags; /**< Section 8.5.3 */
achar_t system_id[ISO_MAX_SYSTEM_ID]; /**< each char is an achar */
dchar_t volume_id[ISO_MAX_VOLUME_ID]; /**< each char is a dchar */
char unused2[8];
iso733_t volume_space_size; /**< total number of
sectors */
char escape_sequences[32]; /**< 8.5.6 */
char escape_sequences[32]; /**< Section 8.5.6 */
iso723_t volume_set_size; /**< often 1 */
iso723_t volume_sequence_number; /**< often 1 */
iso723_t logical_block_size; /**< sector size, e.g. 2048 */
@@ -365,34 +438,70 @@ struct iso9660_svd_s {
iso9660_dir_t root_directory_record; /**< See section 9.1 of
ISO 9660 spec. */
dchar_t volume_set_id[ISO_MAX_VOLUMESET_ID]; /**< dchars */
achar_t publisher_id[ISO_MAX_PUBLISHER_ID]; /**< achars */
achar_t preparer_id[ISO_MAX_PREPARER_ID]; /**< achars */
achar_t application_id[ISO_MAX_APPLICATION_ID]; /**< achars */
dchar_t copyright_file_id[37]; /**< See section 7.5 of
ISO 9660 spec. */
dchar_t abstract_file_id[37]; /**< See section 7.5 of
ISO 9660 spec. */
achar_t publisher_id[ISO_MAX_PUBLISHER_ID]; /**< Publisher of
volume. If the first
character is '_' 0x5F,
the remaining bytes
specify a file
containing the user.
If all bytes are " "
(0x20) no publisher
is specified. See
section 8.4.20 of
ECMA 119 */
achar_t preparer_id[ISO_MAX_PREPARER_ID]; /**< preparer of
volume. If the first
character is '_' 0x5F,
the remaining bytes
specify a file
containing the user.
If all bytes are " "
(0x20) no preparer
is specified.
See section 8.4.21
of ECMA 119 */
achar_t application_id[ISO_MAX_APPLICATION_ID]; /**< application
use to create the
volume. If the first
character is '_' 0x5F,
the remaining bytes
specify a file
containing the user.
If all bytes are " "
(0x20) no application
is specified.
See section of 8.4.22
of ECMA 119 */
dchar_t copyright_file_id[37]; /**< Name of file for
copyright info. If
all bytes are " "
(0x20), then no file
is identified. See
section 8.4.23 of ECMA 119
9660 spec. */
dchar_t abstract_file_id[37]; /**< See section 8.4.24 of
ECMA 119. */
dchar_t bibliographic_file_id[37]; /**< See section 7.5 of
ISO 9660 spec. */
iso9660_ltime_t creation_date; /**< date and time of volume
creation. See section 8.4.26.1
of the ISO 9660 spec. */
of the ECMA 119 spec. */
iso9660_ltime_t modification_date; /**< date and time of the most
recent modification.
See section 8.4.26.1 of the
ISO 9660 spec. */
See section 8.4.27 of the
ECMA 119 spec. */
iso9660_ltime_t expiration_date; /**< date and time when volume
expires. See section 8.4.26.1
of the ISO 9660 spec. */
expires. See section 8.4.28
of the ECMA 119 spec. */
iso9660_ltime_t effective_date; /**< date and time when volume
is effective. See section
8.4.26.1 of the ISO 9660
8.4.29 of the ECMA 119
spec. */
iso711_t file_structure_version; /**< value 1 usually */
char unused4[1];
iso711_t file_structure_version; /**< value 1 for ECMA 119 */
uint8_t unused4[1]; /**< unused - value 0 */
char application_data[512]; /**< Application can put
whatever it wants here. */
char unused5[653];
uint8_t unused5[653]; /**< Unused - value 0 */
} GNUC_PACKED;
typedef struct iso9660_svd_s iso9660_svd_t;