File indexing completed on 2024-05-12 17:22:22

 /*
     SPDX-FileCopyrightText: 2002 Szombathelyi György <gyurco@users.sourceforge.net>
     SPDX-FileCopyrightText: 2004-2022 Krusader Krew <https://krusader.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef ISOFS_H
 #define ISOFS_H
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include "el_torito.h"
 #include "iso_fs.h"
 #include "rock.h"
 #include <stdlib.h>
 #include <time.h>
 
 typedef struct _rr_entry {
     int len; /* length of structure */
     char *name; /* Name from 'NM' */
     char *sl; /* symbolic link data */
     time_t t_creat;
     time_t t_mtime;
     time_t t_atime;
     time_t t_ctime;
     time_t t_backup;
     time_t t_expire;
     time_t t_effect;
     int mode; /* POSIX file modes */
     int nlink;
     int uid;
     int gid;
     int serno;
     int dev_major;
     int dev_minor;
     int pl; /* parent location */
     int cl; /* child location */
     int re; /* relocated */
     char z_algo[2]; /* zizofs algorithm */
     char z_params[2]; /* zizofs parameters */
     unsigned int z_size; /* zizofs real_size */
 } rr_entry;
 
 typedef struct _iso_vol_desc {
     struct _iso_vol_desc *next;
     struct _iso_vol_desc *prev;
     struct iso_volume_descriptor data;
 } iso_vol_desc;
 
 union default_entry_as_data {
     char c[32];
     struct default_entry d_e;
 };
 
 typedef struct _boot_entry {
     struct _boot_entry *next;
     struct _boot_entry *prev;
     struct _boot_entry *parent;
     struct _boot_entry *child;
     union default_entry_as_data data;
 } boot_entry;
 
 typedef struct _boot_head {
     struct validation_entry ventry;
     struct _boot_entry *defentry;
     struct _boot_entry *sections;
 } boot_head;
 
 /**
  * this callback function needs to read 'len' sectors from 'start' into 'buf'
  */
 typedef int readfunc(char *buf, unsigned int start, unsigned int len, void *);
 
 /**
  * ProcessDir uses this callback
  */
 typedef int dircallback(struct iso_directory_record *, void *);
 
 /**
  * Returns the Unix from the ISO9660 9.1.5 (7 bytes) time format
  * This function is from the linux kernel.
  * Set 'hs' to non-zero if it's a HighSierra volume
  */
 time_t isodate_915(char *p, int hs);
 
 /**
  * Returns the Unix time from the ISO9660 8.4.26.1 (17 bytes) time format
  * BUG: hundredth of seconds are ignored, because time_t has one second
  * resolution (I think it's no problem at all)
  * Set 'hs' to non-zero if it's a HighSierra volume
  */
 time_t isodate_84261(char *p, int hs);
 
 /**
  * Creates the linked list of the volume descriptors
  * 'sector' is the starting sector number of where the filesystem start
  * (starting sector of a session on a CD-ROM)
  * If the function fails, returns NULL
  * Don't forget to call FreeISO9660 after using the volume descriptor list!
  */
 iso_vol_desc *ReadISO9660(readfunc *read, unsigned int sector, void *udata);
 
 /**
  * Frees the linked list of volume descriptors.
  */
 void FreeISO9660(iso_vol_desc *data);
 
 /**
  * Iterates over the directory entries. The directory is in 'buf',
  * the size of the directory is 'size'. 'callback' is called for each
  * directory entry with the parameter 'udata'.
  */
 int ProcessDir(readfunc *read, int extent, int size, dircallback *callback, void *udata);
 
 /**
  * Parses the System Use area and fills rr_entry with values
  */
 int ParseRR(struct iso_directory_record *idr, rr_entry *rrentry);
 
 /**
  * Frees the strings in 'rrentry'
  */
 void FreeRR(rr_entry *rrentry);
 
 /**
  * returns the joliet level from the volume descriptor
  */
 int JolietLevel(struct iso_volume_descriptor *ivd);
 
 /**
  * Returns the size of the boot image (in 512 byte sectors)
  */
 long long BootImageSize(int media, unsigned int len);
 
 /**
  * Frees the boot catalog entries in 'boot'. If you ever called ReadBootTable,
  * then don't forget to call FreeBootTable!
  */
 void FreeBootTable(boot_head *boot);
 
 /**
  * Reads the boot catalog into 'head'. Don't forget to call FreeBootTable!
  */
 int ReadBootTable(readfunc *read, unsigned int sector, boot_head *head, void *udata);
 
 #ifdef __cplusplus
 } // extern "C"
 #endif
 
 #endif