196 lines
6.5 KiB
C
196 lines
6.5 KiB
C
/*
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$Id: rock.h,v 1.1 2005/02/13 00:20:05 rocky Exp $
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Copyright (C) 2005 Rocky Bernstein <rocky@panix.com>
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See also rock.c by Eric Youngdale (1993) from GNU/Linux and in cdrtools.
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This is
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Copyright 1993 Yggdrasil Computing, Incorporated
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*!
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\file rock.h
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\brief Things related to the Rock Ridge Interchange Protocol (RRIP)
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Applications will probably not include this directly but via
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the iso9660.h header.
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*/
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#ifndef __CDIO_ROCK_H__
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#define __CDIO_ROCK_H__
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#include <cdio/types.h>
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/*! An enumeration for some of the ISO_ROCK_* #defines below. This isn't
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really an enumeration one would really use in a program it is to
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be helpful in debuggers where wants just to refer to the ISO_ROCK_*
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names and get something.
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*/
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extern enum cdio_rock_enums {
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ISO_ROCK_IRUSR = 000400, /**< read permission (owner) */
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ISO_ROCK_IWUSR = 000200, /**< write permission (owner) */
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ISO_ROCK_IXUSR = 000100, /**< execute permission (owner) */
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ISO_ROCK_IRGRP = 000040, /**< read permission (group) */
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ISO_ROCK_IWGRP = 000020, /**< write permission (group) */
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ISO_ROCK_IXGRP = 000010, /**< execute permission (group) */
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ISO_ROCK_IROTH = 000004, /**< read permission (other) */
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ISO_ROCK_IWOTH = 000002, /**< write permission (other) */
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ISO_ROCK_IXOTH = 000001, /**< execute permission (other) */
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ISO_ROCK_ISUID = 004000, /**< set user ID on execution */
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ISO_ROCK_ISGID = 002000, /**< set group ID on execution */
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ISO_ROCK_ISVTX = 001000, /**< save swapped text even after use */
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ISO_ROCK_ISSOCK = 0140000, /**< socket */
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ISO_ROCK_ISLNK = 0120000, /**< symbolic link */
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ISO_ROCK_ISREG = 0100000, /**< regular */
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ISO_ROCK_ISBLK = 060000, /**< block special */
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ISO_ROCK_ISCHR = 020000, /**< character special */
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ISO_ROCK_ISDIR = 040000, /**< directory */
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ISO_ROCK_ISFIFO = 010000 /**< pipe or FIFO */
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} cdio_rock_enums;
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/** Enforced file locking (shared w/set group ID) */
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#define ISO_ROCK_ENFMT ISO_ROCK_ISGID
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PRAGMA_BEGIN_PACKED
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/*! POSIX file attributes, PX. See Section 4.1.2 */
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typedef struct iso_rock_px_s {
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iso733_t st_mode; /*! file mode permissions; same as st_mode
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of POSIX:5.6.1 */
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iso733_t st_links; /*! number of links to file; same as st_links
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of POSIX:5.6.1 */
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iso733_t st_uid; /*! user id owner of file; same as st_uid
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of POSIX:5.6.1 */
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iso733_t gid; /*! group id of file; same as st_gid of
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of POSIX:5.6.1 */
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} GNUC_PACKED iso_rock_px_t ;
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/*! POSIX device number, PN. A PN is mandatory if the file type
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recorded in the "PX" File Mode field for a Directory Record
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indicates a character or block device (ISO_ROCK_ISCHR |
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ISO_ROCK_ISBLK). This entry is ignored for other (non-Direcotry)
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file types. No more than one "PN" is recorded in the System Use Area
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of a Directory Record.
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See Section 4.1.2 */
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typedef struct iso_rock_pn_s {
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iso733_t dev_high; /*! high-order 32 bits of the 64 bit device number.
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7.2.3 encoded */
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iso733_t dev_low; /*! low-order 32 bits of the 64 bit device number.
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7.2.3 encoded */
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} GNUC_PACKED iso_rock_pn_t ;
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/*! Symbolic link. See Section 4.1.3 */
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typedef struct iso_rock_sl_s {
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unsigned char flags;
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unsigned char len;
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char text[EMPTY_ARRAY_SIZE];
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} GNUC_PACKED iso_rock_sl_t ;
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/*! Alternate name. See Section 4.1.4 */
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typedef struct iso_rock_nm_s {
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unsigned char flags;
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char name[EMPTY_ARRAY_SIZE];
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} GNUC_PACKED iso_rock_nm_t ;
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/*! Child link. See Section 4.1.5.1 */
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typedef struct iso_rock_cl_s {
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char location[1];
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} GNUC_PACKED iso_rock_cl_t ;
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/*! Parent link. See Section 4.1.5.2 */
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typedef struct iso_rock_pl_s {
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char location[1];
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} GNUC_PACKED iso_rock_pl_t ;
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/* These are the bits and their meanings for flags in the TF structure. */
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typedef enum {
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ISO_ROCK_TF_CREATE = 1,
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ISO_ROCK_TF_MODIFY = 2,
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ISO_ROCK_TF_ACCESS = 4,
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ISO_ROCK_TF_ATTRIBUTES = 8,
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ISO_ROCK_TF_BACKUP = 16,
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ISO_ROCK_TF_EXPIRATION = 32,
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ISO_ROCK_TF_EFFECTIVE = 64,
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ISO_ROCK_TF_LONG_FORM = 128
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} iso_rock_tf_flag_t;
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/* These are the bits and their meanings for flags in the TF structure. */
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#define ISO_ROCK_TF_CREATE 1
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#define ISO_ROCK_TF_MODIFY 2
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#define ISO_ROCK_TF_ACCESS 4
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#define ISO_ROCK_TF_ATTRIBUTES 8
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#define ISO_ROCK_TF_BACKUP 16
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#define ISO_ROCK_TF_EXPIRATION 32
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#define ISO_ROCK_TF_EFFECTIVE 64
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#define ISO_ROCK_TF_LONG_FORM 128
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/*! Time stamp(s) for a file. See Section 4.1.6 */
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typedef struct iso_rock_tf_s {
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uint8_t flags;
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iso9660_ltime_t times[EMPTY_ARRAY_SIZE];
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} GNUC_PACKED iso_rock_tf_t ;
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/*! File data in sparse format. See Section 4.1.7 */
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typedef struct iso_rock_sf_s {
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iso733_t virtual_size_high; /**< high-order 32 bits of virtual size */
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iso733_t virtual_size_low; /**< low-order 32 bits of virtual size */
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uint8_t table_depth;
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} GNUC_PACKED iso_rock_sf_t ;
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/*! GNU/Linux-specific extension for transparent decompression. */
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typedef struct iso_rock_zf_s {
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char algorithm[2];
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char parms[2];
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char real_size[8];
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} GNUC_PACKED iso_rock_zf_t ;
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typedef struct iso_rock_ridge_s {
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char signature[2]; /**< signature word; either 'SP', 'CE', 'ER', 'RR',
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'PX', 'PN', 'SL', 'NM', 'CL', 'PL', 'TF', or
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'ZF' */
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iso711_t len; /** length of system-user area - 44 for PX
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20 for PN, 5+strlen(text) for SL. */
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iso711_t version; /** version number - value 1 */
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union{
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iso_rock_px_t PX;
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iso_rock_pn_t PN;
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iso_rock_sl_t SL;
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iso_rock_nm_t NM;
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iso_rock_cl_t CL;
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iso_rock_pl_t PL;
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iso_rock_tf_t TF;
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iso_rock_zf_t SF;
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iso_rock_zf_t ZF;
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} u;
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} GNUC_PACKED iso_rock_ridge_t;
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PRAGMA_END_PACKED
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#endif /* __ISO_ROCK_H__ */
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/*
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* Local variables:
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* c-file-style: "gnu"
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*/
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