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152 lines
4.5 KiB
152 lines
4.5 KiB
/***************************************************************************
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isofs.h - include this file to use libisofs
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-------------------
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begin : Oct 25 2002
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copyright : (C) 2002 by Szombathelyi György
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email : gyurco@users.sourceforge.net
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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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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* *
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***************************************************************************/
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#ifndef ISOFS_H
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#define ISOFS_H
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#include <sys/time.h>
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#include "iso_fs.h"
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#include "el_torito.h"
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typedef long long sector_t;
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typedef struct _rr_entry {
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int len; /* length of structure */
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char *name; /* Name from 'NM' */
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char *sl; /* symbolic link data */
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time_t t_creat;
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time_t rr_st_mtime;
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time_t rr_st_atime;
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time_t rr_st_ctime;
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time_t t_backup;
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time_t t_expire;
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time_t t_effect;
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int mode; /* POSIX file modes */
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int nlink;
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int uid;
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int gid;
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int serno;
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int dev_major;
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int dev_minor;
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int pl; /* parent location */
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int cl; /* child location */
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int re; /* relocated */
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char z_algo[2]; /* zizofs algorithm */
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char z_params[2]; /* zizofs parameters */
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long long z_size; /* zizofs real_size */
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} rr_entry;
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typedef struct _iso_vol_desc {
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struct _iso_vol_desc *next;
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struct _iso_vol_desc *prev;
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struct iso_volume_descriptor data;
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} iso_vol_desc;
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typedef struct _boot_entry {
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struct _boot_entry *next;
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struct _boot_entry *prev;
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struct _boot_entry *parent;
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struct _boot_entry *child;
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char data[32];
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} boot_entry;
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typedef struct _boot_head {
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struct validation_entry ventry;
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struct _boot_entry *defentry;
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struct _boot_entry *sections;
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} boot_head;
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/**
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* this callback function needs to read 'len' sectors from 'start' into 'buf'
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*/
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typedef int readfunc(char *buf,sector_t start, long long len,void *);
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/**
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* ProcessDir uses this callback
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*/
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typedef int dircallback(struct iso_directory_record *,void *);
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/**
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* Returns the Unix from the ISO9660 9.1.5 (7 bytes) time format
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* This function is from the linux kernel.
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* Set 'hs' to non-zero if it's a HighSierra volume
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*/
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time_t isodate_915(char * p, int hs);
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/**
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* Returns the Unix time from the ISO9660 8.4.26.1 (17 bytes) time format
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* BUG: hundredth of seconds are ignored, because time_t has one second
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* resolution (I think it's no problem at all)
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* Set 'hs' to non-zero if it's a HighSierra volume
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*/
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time_t isodate_84261(char * p, int hs);
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/**
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* Creates the linked list of the volume descriptors
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* 'sector' is the starting sector number of where the filesystem start
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* (starting sector of a session on a CD-ROM)
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* If the function fails, returns NULL
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* Don't forget to call FreeISO9660 after using the volume descriptor list!
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*/
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iso_vol_desc *ReadISO9660(readfunc *read,sector_t sector,void *udata);
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/**
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* Frees the linked list of volume descriptors.
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*/
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void FreeISO9660(iso_vol_desc *data);
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/**
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* Iterates over the directory entries. The directory is in 'buf',
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* the size of the directory is 'size'. 'callback' is called for each
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* directory entry with the parameter 'udata'.
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*/
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int ProcessDir(readfunc *read,int extent,int size,dircallback *callback,void *udata);
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/**
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* Parses the System Use area and fills rr_entry with values
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*/
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int ParseRR(struct iso_directory_record *idr, rr_entry *rrentry);
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/**
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* Frees the strings in 'rrentry'
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*/
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void FreeRR(rr_entry *rrentry);
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/**
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* returns the joliet level from the volume descriptor
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*/
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int JolietLevel(struct iso_volume_descriptor *ivd);
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/**
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* Returns the size of the boot image (in 512 byte sectors)
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*/
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int BootImageSize(readfunc *read,int media,sector_t start,long long len,void *udata);
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/**
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* Frees the boot catalog entries in 'boot'. If you ever called ReadBootTable,
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* then don't forget to call FreeBootTable!
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*/
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void FreeBootTable(boot_head *boot);
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/**
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* Reads the boot catalog into 'head'. Don't forget to call FreeBootTable!
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*/
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int ReadBootTable(readfunc *read,sector_t sector, boot_head *head, void *udata);
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#endif
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