/* $Id: iso9660.h,v 1.14 2003/09/01 02:08:59 rocky Exp $ Copyright (C) 2000 Herbert Valerio Riedel Copyright (C) 2003 Rocky Bernstein See also iso9660.h by Eric Youngdale (1993). Copyright 1993 Yggdrasil Computing, Incorporated Copyright (c) 1999,2000 J. Schilling 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* * Header file iso9660.h - assorted structure definitions and typecasts. specific to iso9660 filesystem. */ #ifndef __CDIO_ISO9660_H__ #define __CDIO_ISO9660_H__ #include #include #define MIN_TRACK_SIZE 4*75 #define MIN_ISO_SIZE MIN_TRACK_SIZE /* A ISO filename is: "abcde.eee;1" -> '.' ';' The maximum needed string length is: 30 chars (filename + ext) + 2 chars ('.' + ';') + strlen("32767") + null byte ================================ = 38 chars */ #define LEN_ISONAME 31 #define MAX_ISONAME 37 #define MAX_ISOPATHNAME 255 /* * ISO 9660 directory flags. */ #define ISO_FILE 0 /* Not really a flag... */ #define ISO_EXISTENCE 1 /* Do not make existence known (hidden) */ #define ISO_DIRECTORY 2 /* This file is a directory */ #define ISO_ASSOCIATED 4 /* This file is an assiciated file */ #define ISO_RECORD 8 /* Record format in extended attr. != 0 */ #define ISO_PROTECTION 16 /* No read/execute perm. in ext. attr. */ #define ISO_DRESERVED1 32 /* Reserved bit 5 */ #define ISO_DRESERVED2 64 /* Reserved bit 6 */ #define ISO_MULTIEXTENT 128 /* Not final entry of a mult. ext. file */ /* Volume descriptor types */ #define ISO_VD_PRIMARY 1 #define ISO_VD_SUPPLEMENTARY 2 /* Used by Joliet */ #define ISO_VD_END 255 #define ISO_PVD_SECTOR 16 #define ISO_EVD_SECTOR 17 #define ISO_STANDARD_ID "CD001" #define ISO_BLOCKSIZE 2048 enum strncpy_pad_check { ISO9660_NOCHECK = 0, ISO9660_7BIT, ISO9660_ACHARS, ISO9660_DCHARS }; PRAGMA_BEGIN_PACKED /* ISO-9660 Primary Volume Descriptor. */ typedef struct iso9660_pvd { uint8_t type; /* 711 */ char id[5]; uint8_t version; /* 711 */ char unused1[1]; char system_id[32]; /* achars */ char volume_id[32]; /* dchars */ char unused2[8]; uint64_t volume_space_size; /* 733 */ char escape_sequences[32]; uint32_t volume_set_size; /* 723 */ uint32_t volume_sequence_number; /* 723 */ uint32_t logical_block_size; /* 723 */ uint64_t path_table_size; /* 733 */ uint32_t type_l_path_table; /* 731 */ uint32_t opt_type_l_path_table; /* 731 */ uint32_t type_m_path_table; /* 732 */ uint32_t opt_type_m_path_table; /* 732 */ char root_directory_record[34]; /* 9.1 */ char volume_set_id[128]; /* dchars */ char publisher_id[128]; /* achars */ char preparer_id[128]; /* achars */ char application_id[128]; /* achars */ char copyright_file_id[37]; /* 7.5 dchars */ char abstract_file_id[37]; /* 7.5 dchars */ char bibliographic_file_id[37]; /* 7.5 dchars */ char creation_date[17]; /* 8.4.26.1 */ char modification_date[17]; /* 8.4.26.1 */ char expiration_date[17]; /* 8.4.26.1 */ char effective_date[17]; /* 8.4.26.1 */ uint8_t file_structure_version; /* 711 */ char unused4[1]; char application_data[512]; char unused5[653]; } iso9660_pvd_t GNUC_PACKED; typedef struct iso9660_dir iso9660_dir_t; #ifndef EMPTY_ARRAY_SIZE #define EMPTY_ARRAY_SIZE 0 #endif /* * XXX JS: The next structure may have an odd length! * 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 */ /* Format of an ISO-9660 directory record */ struct iso9660_dir { uint8_t length; /* 711 */ uint8_t ext_attr_length; /* 711 */ uint64_t extent; /* 733 */ uint64_t size; /* 733 */ uint8_t date[7]; /* 7 by 711 */ uint8_t flags; uint8_t file_unit_size; /* 711 */ uint8_t interleave; /* 711 */ uint32_t volume_sequence_number; /* 723 */ uint8_t name_len; /* 711 */ char name[EMPTY_ARRAY_SIZE]; } GNUC_PACKED; typedef struct iso9660_stat { /* big endian!! */ enum { _STAT_FILE = 1, _STAT_DIR = 2 } type; lsn_t lsn; /* start logical sector number */ uint32_t size; /* total size in bytes */ uint32_t secsize; /* number of sectors allocated */ iso9660_xa_t xa; /* XA attributes */ } iso9660_stat_t; PRAGMA_END_PACKED char * iso9660_strncpy_pad(char dst[], const char src[], size_t len, enum strncpy_pad_check _check); int iso9660_isdchar (int c); int iso9660_isachar (int c); /* file/dirname's */ bool iso9660_pathname_valid_p (const char pathname[]); bool iso9660_dirname_valid_p (const char pathname[]); char * iso9660_pathname_isofy (const char pathname[], uint16_t version); /* directory tree */ void iso9660_dir_init_new (void *dir, uint32_t self, uint32_t ssize, uint32_t parent, uint32_t psize); void iso9660_dir_init_new_su (void *dir, uint32_t self, uint32_t ssize, const void *ssu_data, unsigned ssu_size, uint32_t parent, uint32_t psize, const void *psu_data, unsigned psu_size); void iso9660_dir_add_entry_su (void *dir, const char name[], uint32_t extent, uint32_t size, uint8_t flags, const void *su_data, unsigned su_size); unsigned iso9660_dir_calc_record_size (unsigned namelen, unsigned int su_len); int iso9660_fs_stat (CdIo *obj,const char pathname[], iso9660_stat_t *buf, bool is_mode2); void * /* list of char* -- caller must free it */ iso9660_fs_readdir (CdIo *obj, const char pathname[], bool mode2); uint8_t iso9660_get_dir_len(const iso9660_dir_t *idr); #if FIXME uint8_t iso9660_get_dir_size(const iso9660_dir_t *idr); lsn_t iso9660_get_dir_extent(const iso9660_dir_t *idr); #endif uint8_t iso9660_get_pvd_type(const iso9660_pvd_t *pvd); const char * iso9660_get_pvd_id(const iso9660_pvd_t *pvd); int iso9660_get_pvd_space_size(const iso9660_pvd_t *pvd); int iso9660_get_pvd_block_size(const iso9660_pvd_t *pvd) ; int iso9660_get_pvd_version(const iso9660_pvd_t *pvd) ; lsn_t iso9660_get_root_lsn(const iso9660_pvd_t *pvd); /* pathtable */ void iso9660_pathtable_init (void *pt); unsigned int iso9660_pathtable_get_size (const void *pt); uint16_t iso9660_pathtable_l_add_entry (void *pt, const char name[], uint32_t extent, uint16_t parent); uint16_t iso9660_pathtable_m_add_entry (void *pt, const char name[], uint32_t extent, uint16_t parent); /* volume descriptors */ void iso9660_set_pvd (void *pd, const char volume_id[], const char application_id[], const char publisher_id[], const char preparer_id[], uint32_t iso_size, const void *root_dir, uint32_t path_table_l_extent, uint32_t path_table_m_extent, uint32_t path_table_size); void iso9660_set_evd (void *pd); #endif /* __CDIO_ISO9660_H__ */ /* * Local variables: * c-file-style: "gnu" * tab-width: 8 * indent-tabs-mode: nil * End: */