/*************************************************************************** isofs.h - include this file to use libisofs ------------------- begin : Oct 25 2002 copyright : (C) 2002 by Szombathelyi György email : gyurco@users.sourceforge.net ***************************************************************************/ /*************************************************************************** * * * 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. * * * ***************************************************************************/ #ifndef ISOFS_H #define ISOFS_H #include #include "iso_fs.h" #include "el_torito.h" typedef long sector_t; 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 rr_st_mtime; time_t rr_st_atime; time_t rr_st_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 */ 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; typedef struct _boot_entry { struct _boot_entry *next; struct _boot_entry *prev; struct _boot_entry *parent; struct _boot_entry *child; char data[32]; } 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,sector_t start, 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,sector_t 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) */ int BootImageSize(readfunc *read,int media,sector_t start,int len,void *udata); /** * 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,sector_t sector, boot_head *head, void *udata); #endif