src/archiver_iso9660.c
author Ryan C. Gordon <icculus@icculus.org>
Mon, 30 Aug 2010 03:01:57 -0400
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parent 1116 20dfca1e8a27
child 1125 bcff76dbd9fd
permissions -rw-r--r--
Abstracted file i/o into PHYSFS_Io interface. This touched a lot of code, and involved cleaning up a lot of stuff.
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/*
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 * ISO9660 support routines for PhysicsFS.
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 *
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 * Please see the file LICENSE.txt in the source's root directory.
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 *
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 *  This file written by Christoph Nelles.
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 */
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/* !!! FIXME: this file needs Ryanification. */
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/*
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 * Handles CD-ROM disk images (and raw CD-ROM devices).
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 *
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 * Not supported:
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 * - RockRidge
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 * - Non 2048 Sectors
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 * - UDF
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 *
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 * Deviations from the standard
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 * - Ignores mandatory sort order
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 * - Allows various invalid file names
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 *
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 * Problems
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 * - Ambiguities in the standard
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 */
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#if (defined PHYSFS_SUPPORTS_ISO9660)
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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/* cache files smaller than this completely in memory */
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#define ISO9660_FULLCACHEMAXSIZE 2048
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/* !!! FIXME: this is going to cause trouble. */
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#pragma pack(push)  /* push current alignment to stack */
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#pragma pack(1)     /* set alignment to 1 byte boundary */
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/* This is the format as defined by the standard
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typedef struct
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{
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    PHYSFS_uint32 lsb;
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    PHYSFS_uint32 msb;
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} ISOBB32bit; // 32byte Both Byte type, means the value first in LSB then in MSB
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typedef struct
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{
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    PHYSFS_uint16 lsb;
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    PHYSFS_uint16 msb;
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} ISOBB16bit; // 16byte Both Byte type, means the value first in LSB then in MSB
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*/
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/* define better ones to simplify coding (less if's) */
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#if PHYSFS_BYTEORDER == PHYSFS_LIL_ENDIAN
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#define ISOBB32bit(name) PHYSFS_uint32 name; PHYSFS_uint32 __dummy_##name;
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#define ISOBB16bit(name) PHYSFS_uint16 name; PHYSFS_uint16 __dummy_##name;
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#else
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#define ISOBB32bit(name) PHYSFS_uint32 __dummy_##name; PHYSFS_uint32 name;
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#define ISOBB16bit(name) PHYSFS_uint16 __dummy_##name; PHYSFS_uint16 name;
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#endif
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typedef struct
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{
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    char year[4];
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    char month[2];
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    char day[2];
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    char hour[2];
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    char minute[2];
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    char second[2];
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    char centisec[2];
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    PHYSFS_sint8 offset; /* in 15min from GMT */
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} ISO9660VolumeTimestamp;
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typedef struct
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{
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    PHYSFS_uint8 year;
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    PHYSFS_uint8 month;
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    PHYSFS_uint8 day;
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    PHYSFS_uint8 hour;
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    PHYSFS_uint8 minute;
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    PHYSFS_uint8 second;
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    PHYSFS_sint8 offset;
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} ISO9660FileTimestamp;
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typedef struct
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{
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  unsigned existence:1;
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  unsigned directory:1;
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  unsigned associated_file:1;
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  unsigned record:1;
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  unsigned protection:1;
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  unsigned reserved:2;
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  unsigned multiextent:1;
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} ISO9660FileFlags;
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typedef struct
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{
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    PHYSFS_uint8 length;
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    PHYSFS_uint8 attribute_length;
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    ISOBB32bit(extent_location)
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    ISOBB32bit(data_length)
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    ISO9660FileTimestamp timestamp;
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    ISO9660FileFlags file_flags;
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    PHYSFS_uint8 file_unit_size;
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    PHYSFS_uint8 gap_size;
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    ISOBB16bit(vol_seq_no)
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    PHYSFS_uint8 len_fi;
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    char unused;
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} ISO9660RootDirectoryRecord;
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/* this structure is combined for all Volume descriptor types */
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typedef struct
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{
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    PHYSFS_uint8 type;
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    char identifier[5];
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    PHYSFS_uint8 version;
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    PHYSFS_uint8 flags;
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    char system_identifier[32];
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    char volume_identifier[32];
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    char unused2[8];
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    ISOBB32bit(space_size)
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    PHYSFS_uint8 escape_sequences[32];
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    ISOBB16bit(vol_set_size)
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    ISOBB16bit(vol_seq_no)
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    ISOBB16bit(block_size)
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    ISOBB32bit(path_table_size)
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/*    PHYSFS_uint32 path_table_start_lsb; // why didn't they use both byte type?
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    PHYSFS_uint32 opt_path_table_start_lsb;
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    PHYSFS_uint32 path_table_start_msb;
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    PHYSFS_uint32 opt_path_table_start_msb;*/
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#if PHYSFS_BYTEORDER == PHYSFS_LIL_ENDIAN
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    PHYSFS_uint32 path_table_start;
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    PHYSFS_uint32 opt_path_table_start;
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    PHYSFS_uint32 unused6;
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    PHYSFS_uint32 unused7;
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#else
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    PHYSFS_uint32 unused6;
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    PHYSFS_uint32 unused7;
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    PHYSFS_uint32 path_table_start;
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    PHYSFS_uint32 opt_path_table_start;
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#endif
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    ISO9660RootDirectoryRecord rootdirectory;
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    char set_identifier[128];
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    char publisher_identifier[128];
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    char preparer_identifer[128];
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    char application_identifier[128];
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    char copyright_file_identifier[37];
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    char abstract_file_identifier[37];
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    char bibliographic_file_identifier[37];
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    ISO9660VolumeTimestamp creation_timestamp;
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    ISO9660VolumeTimestamp modification_timestamp;
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    ISO9660VolumeTimestamp expiration_timestamp;
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    ISO9660VolumeTimestamp effective_timestamp;
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    PHYSFS_uint8 file_structure_version;
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    char unused4;
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    char application_use[512];
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    char unused5[653];
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} ISO9660VolumeDescriptor;
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typedef struct
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{
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    PHYSFS_uint8 recordlen;
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    PHYSFS_uint8 extattributelen;
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    ISOBB32bit(extentpos)
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    ISOBB32bit(datalen)
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    ISO9660FileTimestamp recordtime;
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    ISO9660FileFlags flags;
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    PHYSFS_uint8 file_unit_size;
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    PHYSFS_uint8 interleave_gap;
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    ISOBB16bit(volseqno)
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    PHYSFS_uint8 filenamelen;
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    char filename[222]; /* This is not exact, but makes reading easier */
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} ISO9660FileDescriptor;
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typedef struct
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{
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    ISOBB16bit(owner)
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    ISOBB16bit(group)
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    PHYSFS_uint16 flags; /* not implemented*/
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    ISO9660VolumeTimestamp create_time; /* yes, not file timestamp */
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    ISO9660VolumeTimestamp mod_time;
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    ISO9660VolumeTimestamp expire_time;
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    ISO9660VolumeTimestamp effective_time;
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    PHYSFS_uint8 record_format;
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    PHYSFS_uint8 record_attributes;
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    ISOBB16bit(record_len)
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    char system_identifier[32];
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    char system_use[64];
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    PHYSFS_uint8 version;
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    ISOBB16bit(escape_len)
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    char reserved[64];
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    /** further fields not implemented */
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} ISO9660ExtAttributeRec;
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#pragma pack(pop)   /* restore original alignment from stack */
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typedef struct
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{
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    PHYSFS_Io *io;
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    PHYSFS_uint32 rootdirstart;
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    PHYSFS_uint32 rootdirsize;
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    PHYSFS_uint64 currpos;
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    int isjoliet;
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    char *path;
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    void *mutex;
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} ISO9660Handle;
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typedef struct __ISO9660FileHandle
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{
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    PHYSFS_sint64 filesize;
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    PHYSFS_uint64 currpos;
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    PHYSFS_uint64 startblock;
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    ISO9660Handle *isohandle;
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    PHYSFS_uint32 (*read) (struct __ISO9660FileHandle *filehandle, void *buffer,
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            PHYSFS_uint64 len);
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    int (*seek)(struct __ISO9660FileHandle *filehandle,  PHYSFS_sint64 offset);
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    void (*close)(struct __ISO9660FileHandle *filehandle);
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    /* !!! FIXME: anonymouse union is going to cause problems. */
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    union
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    {
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        /* !!! FIXME: just use a memory PHYSFS_Io here, unify all this code. */
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        char *cacheddata; /* data of file when cached */
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        PHYSFS_Io *io; /* handle to separate opened file */
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    };
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} ISO9660FileHandle;
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/*******************************************************************************
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 * Time conversion functions
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 ******************************************************************************/
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static PHYSFS_sint64 iso_mktime(ISO9660FileTimestamp *timestamp)
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{
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    struct tm tm;
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    tm.tm_year = timestamp->year;
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    tm.tm_mon = timestamp->month - 1;
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    tm.tm_mday = timestamp->day;
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    tm.tm_hour = timestamp->hour;
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    tm.tm_min = timestamp->minute;
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    tm.tm_sec = timestamp->second;
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    /* Ignore GMT offset for now... */
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    return mktime(&tm);
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} /* iso_mktime */
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static int iso_atoi2(char *text)
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{
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    return ((text[0] - 40) * 10) + (text[1] - 40);
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} /* iso_atoi2 */
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static int iso_atoi4(char *text)
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{
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    return ((text[0] - 40) * 1000) + ((text[1] - 40) * 100) +
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           ((text[2] - 40) * 10) + (text[3] - 40);
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} /* iso_atoi4 */
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static PHYSFS_sint64 iso_volume_mktime(ISO9660VolumeTimestamp *timestamp)
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{
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    struct tm tm;
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    tm.tm_year = iso_atoi4(timestamp->year);
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    tm.tm_mon = iso_atoi2(timestamp->month) - 1;
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    tm.tm_mday = iso_atoi2(timestamp->day);
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    tm.tm_hour = iso_atoi2(timestamp->hour);
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    tm.tm_min = iso_atoi2(timestamp->minute);
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    tm.tm_sec = iso_atoi2(timestamp->second);
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    /* this allows values outside the range of a unix timestamp... sanitize them */
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    PHYSFS_sint64 value = mktime(&tm);
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    return value == -1 ? 0 : value;
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} /* iso_volume_mktime */
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/*******************************************************************************
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 * Filename extraction
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 ******************************************************************************/
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static int iso_extractfilenameISO(ISO9660FileDescriptor *descriptor,
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        char *filename, int *version)
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{
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    *filename = '\0';
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    if (descriptor->flags.directory)
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    {
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        strncpy(filename, descriptor->filename, descriptor->filenamelen);
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        filename[descriptor->filenamelen] = '\0';
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        *version = 0;
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    } /* if */
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    else
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    {
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        /* find last SEPARATOR2 */
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        int pos = 0;
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        int lastfound = -1;
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        for(;pos < descriptor->filenamelen; pos++)
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            if (descriptor->filename[pos] == ';')
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                lastfound = pos;
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        BAIL_IF_MACRO(lastfound < 1, ERR_BAD_FILENAME, -1);
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        BAIL_IF_MACRO(lastfound == (descriptor->filenamelen -1), ERR_BAD_FILENAME, -1);
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        strncpy(filename, descriptor->filename, lastfound);
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        if (filename[lastfound - 1] == '.')
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            filename[lastfound - 1] = '\0'; /* consume trailing ., as done in all implementations */
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        else
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            filename[lastfound] = '\0';
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        *version = atoi(descriptor->filename + lastfound);
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    } /* else */
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    return 0;
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} /* iso_extractfilenameISO */
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static int iso_extractfilenameUCS2(ISO9660FileDescriptor *descriptor,
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        char *filename, int *version)
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{
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    PHYSFS_uint16 tmp[128];
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    PHYSFS_uint16 *src;
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    int len;
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    *filename = '\0';
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    *version = 1; /* Joliet does not have versions.. at least not on my images */
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    src = (PHYSFS_uint16*) descriptor->filename;
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    len = descriptor->filenamelen / 2;
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    tmp[len] = 0;
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    while(len--)
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        tmp[len] = PHYSFS_swapUBE16(src[len]);
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    PHYSFS_utf8FromUcs2(tmp, filename, 255);
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    return 0;
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} /* iso_extractfilenameUCS2 */
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static int iso_extractfilename(ISO9660Handle *handle,
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        ISO9660FileDescriptor *descriptor, char *filename,int *version)
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{
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    if (handle->isjoliet)
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        return iso_extractfilenameUCS2(descriptor, filename, version);
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    else
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        return iso_extractfilenameISO(descriptor, filename, version);
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} /* iso_extractfilename */
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/*******************************************************************************
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 * Basic image read functions
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 ******************************************************************************/
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static int iso_readimage(ISO9660Handle *handle, PHYSFS_uint64 where,
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                         void *buffer, PHYSFS_uint64 len)
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{
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    BAIL_IF_MACRO(!__PHYSFS_platformGrabMutex(handle->mutex),
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            ERR_LOCK_VIOLATION, -1);
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    int rc = -1;
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    if (where != handle->currpos)
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        GOTO_IF_MACRO(!handle->io->seek(handle->io,where), NULL, unlockme);
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    rc = handle->io->read(handle->io, buffer, len);
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    if (rc == -1)
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    {
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        handle->currpos = (PHYSFS_uint64) -1;
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        GOTO_MACRO(NULL, unlockme);
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    } /* if */
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    handle->currpos += rc;
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    unlockme:
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    __PHYSFS_platformReleaseMutex(handle->mutex);
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    return rc;
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} /* iso_readimage */
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   366
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static PHYSFS_sint64 iso_readfiledescriptor(ISO9660Handle *handle,
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                                            PHYSFS_uint64 where,
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                                            ISO9660FileDescriptor *descriptor)
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{
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    PHYSFS_sint64 rc = iso_readimage(handle, where, descriptor,
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                                     sizeof (descriptor->recordlen));
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    BAIL_IF_MACRO(rc == -1, NULL, -1);
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    BAIL_IF_MACRO(rc != 1, ERR_CORRUPTED, -1);
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   376
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    if (descriptor->recordlen == 0)
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        return 0; /* fill bytes at the end of a sector */
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   379
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   380
    rc = iso_readimage(handle, where + 1, &descriptor->extattributelen,
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            descriptor->recordlen - sizeof(descriptor->recordlen));
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    BAIL_IF_MACRO(rc == -1, NULL, -1);
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   383
    BAIL_IF_MACRO(rc != 1, ERR_CORRUPTED, -1);
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   384
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   385
    return 0;
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   386
} /* iso_readfiledescriptor */
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   387
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   388
static void iso_extractsubpath(char *path, char **subpath)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   389
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   390
    *subpath = strchr(path,'/');
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   391
    if (*subpath != 0)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   392
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   393
        **subpath = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   394
        *subpath +=1;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   395
    } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   396
} /* iso_extractsubpath */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   397
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   398
/*
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   399
 * Don't use path tables, they are not necessarily faster, but more complicated
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   400
 * to implement as they store only directories and not files, so searching for
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   401
 * a file needs to branch to the directory extent sooner or later.
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   402
 */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   403
static int iso_find_dir_entry(ISO9660Handle *handle,const char *path,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   404
                              ISO9660FileDescriptor *descriptor, int *exists)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   405
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   406
    char *subpath = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   407
    PHYSFS_uint64 readpos, end_of_dir;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   408
    char filename[255];
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   409
    char pathcopy[256];
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   410
    char *mypath;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   411
    int version = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   412
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   413
    strcpy(pathcopy, path);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   414
    mypath = pathcopy;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   415
    *exists = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   416
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   417
    readpos = handle->rootdirstart;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   418
    end_of_dir = handle->rootdirstart + handle->rootdirsize;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   419
    iso_extractsubpath(mypath, &subpath);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   420
    while (1)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   421
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   422
        BAIL_IF_MACRO(iso_readfiledescriptor(handle, readpos, descriptor), NULL, -1);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   423
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   424
        /* recordlen = 0 -> no more entries or fill entry */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   425
        if (!descriptor->recordlen)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   426
        {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   427
            /* if we are in the last sector of the directory & it's 0 -> end */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   428
            if ((end_of_dir - 2048) <= (readpos -1))
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   429
                break; /* finished */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   430
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   431
            /* else skip to the next sector & continue; */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   432
            readpos = (((readpos - 1) / 2048) + 1) * 2048;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   433
            continue;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   434
        } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   435
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   436
        readpos += descriptor->recordlen;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   437
        if (descriptor->filenamelen == 1 && (descriptor->filename[0] == 0
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   438
                || descriptor->filename[0] == 1))
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   439
            continue; /* special ones, ignore */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   440
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   441
        BAIL_IF_MACRO(
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   442
            iso_extractfilename(handle, descriptor, filename, &version),
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   443
            NULL, -1);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   444
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   445
        if (strcmp(filename, mypath) == 0)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   446
        {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   447
            if ( (subpath == 0) || (subpath[0] == 0) )
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   448
            {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   449
                *exists = 1;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   450
                return 0;  /* no subpaths left and we found the entry */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   451
            } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   452
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   453
            if (descriptor->flags.directory)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   454
            {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   455
                /* shorten the path to the subpath */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   456
                mypath = subpath;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   457
                iso_extractsubpath(mypath, &subpath);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   458
                /* gosub to the new directory extent */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   459
                readpos = descriptor->extentpos * 2048;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   460
                end_of_dir = readpos + descriptor->datalen;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   461
            } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   462
            else
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   463
            {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   464
                /* we're at a file but have a remaining subpath -> no match */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   465
                return 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   466
            } /* else */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   467
        } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   468
    } /* while */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   469
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   470
    return 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   471
} /* iso_find_dir_entry */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   472
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   473
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   474
static int iso_read_ext_attributes(ISO9660Handle *handle, int block,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   475
                                   ISO9660ExtAttributeRec *attributes)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   476
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   477
    return iso_readimage(handle, block * 2048, attributes,
1098
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   478
                         sizeof(ISO9660ExtAttributeRec));
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   479
} /* iso_read_ext_attributes */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   480
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   481
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   482
static int ISO9660_flush(PHYSFS_Io *io) { return 1;  /* no write support. */ }
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   483
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   484
static PHYSFS_Io *ISO9660_duplicate(PHYSFS_Io *_io)
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   485
{
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   486
    BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);  /* !!! FIXME: write me. */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   487
} /* ISO9660_duplicate */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   488
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   489
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   490
static void ISO9660_destroy(PHYSFS_Io *io)
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   491
{
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   492
    ISO9660FileHandle *fhandle = (ISO9660FileHandle*) io->opaque;
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   493
    fhandle->close(fhandle);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   494
    allocator.Free(io);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   495
} /* ISO9660_destroy */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   496
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   497
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   498
static PHYSFS_sint64 ISO9660_read(PHYSFS_Io *io, void *buf, PHYSFS_uint64 len)
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   499
{
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   500
    ISO9660FileHandle *fhandle = (ISO9660FileHandle*) io->opaque;
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   501
    return fhandle->read(fhandle, buf, len);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   502
} /* ISO9660_read */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   503
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   504
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   505
static PHYSFS_sint64 ISO9660_write(PHYSFS_Io *io, const void *b, PHYSFS_uint64 l)
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   506
{
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   507
    BAIL_MACRO(ERR_NOT_SUPPORTED, -1);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   508
} /* ISO9660_write */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   509
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   510
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   511
static PHYSFS_sint64 ISO9660_tell(PHYSFS_Io *io)
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   512
{
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   513
    return ((ISO9660FileHandle*) io->opaque)->currpos;
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   514
} /* ISO9660_tell */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   515
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   516
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   517
static int ISO9660_seek(PHYSFS_Io *io, PHYSFS_uint64 offset)
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   518
{
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   519
    ISO9660FileHandle *fhandle = (ISO9660FileHandle*) io->opaque;
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   520
    return fhandle->seek(fhandle, offset);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   521
} /* ISO9660_seek */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   522
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   523
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   524
static PHYSFS_sint64 ISO9660_length(PHYSFS_Io *io)
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   525
{
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   526
    return ((ISO9660FileHandle*) io->opaque)->filesize;
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   527
} /* ISO9660_length */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   528
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   529
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   530
static const PHYSFS_Io ISO9660_Io =
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   531
{
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   532
    ISO9660_read,
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   533
    ISO9660_write,
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   534
    ISO9660_seek,
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   535
    ISO9660_tell,
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   536
    ISO9660_length,
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   537
    ISO9660_duplicate,
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   538
    ISO9660_flush,
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   539
    ISO9660_destroy,
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   540
    NULL
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   541
};
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   542
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   543
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   544
/*******************************************************************************
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   545
 * Archive management functions
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   546
 ******************************************************************************/
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   547
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   548
static void *ISO9660_openArchive(PHYSFS_Io *io, const char *filename, int forWriting)
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   549
{
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   550
    char magicnumber[6];
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   551
    ISO9660Handle *handle;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   552
    int founddescriptor = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   553
    int foundjoliet = 0;
1113
2136d64bd1ad Removed PHYSFS_Archiver's isArchive() method.
Ryan C. Gordon <icculus@icculus.org>
parents: 1111
diff changeset
   554
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   555
    assert(io != NULL);  /* shouldn't ever happen. */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   556
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   557
    BAIL_IF_MACRO(forWriting, ERR_ARC_IS_READ_ONLY, NULL);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   558
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   559
    /* Skip system area to magic number in Volume descriptor */
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   560
    BAIL_IF_MACRO(!io->seek(io, 32769), NULL, NULL);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   561
    BAIL_IF_MACRO(!io->read(io, magicnumber, 5) != 5, NULL, NULL);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   562
    if (memcmp(magicnumber, "CD001", 6) != 0)
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   563
        BAIL_MACRO(ERR_NOT_AN_ARCHIVE, NULL);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   564
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   565
    handle = allocator.Malloc(sizeof(ISO9660Handle));
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   566
    GOTO_IF_MACRO(!handle, ERR_OUT_OF_MEMORY, errorcleanup);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   567
    handle->path = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   568
    handle->mutex= 0;
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   569
    handle->io = NULL;
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   570
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   571
    handle->path = allocator.Malloc(strlen(filename) + 1);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   572
    GOTO_IF_MACRO(!handle->path, ERR_OUT_OF_MEMORY, errorcleanup);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   573
    strcpy(handle->path, filename);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   574
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   575
    handle->mutex = __PHYSFS_platformCreateMutex();
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   576
    GOTO_IF_MACRO(!handle->mutex, "Cannot create Mutex", errorcleanup);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   577
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   578
    handle->io = io;
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   579
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   580
    /* seek Primary Volume Descriptor */
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   581
    GOTO_IF_MACRO(!io->seek(io, 32768), ERR_SEEK_ERROR, errorcleanup);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   582
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   583
    while (1)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   584
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   585
        ISO9660VolumeDescriptor descriptor;
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   586
        GOTO_IF_MACRO(io->read(io, &descriptor, sizeof(ISO9660VolumeDescriptor)) != sizeof(ISO9660VolumeDescriptor), "Cannot read from image", errorcleanup);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   587
        GOTO_IF_MACRO(strncmp(descriptor.identifier, "CD001", 5) != 0, ERR_NOT_AN_ARCHIVE, errorcleanup);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   588
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   589
        if (descriptor.type == 255)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   590
        {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   591
            /* type 255 terminates the volume descriptor list */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   592
            if (founddescriptor)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   593
                return handle; /* ok, we've found one volume descriptor */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   594
            else
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   595
                GOTO_MACRO(ERR_CORRUPTED, errorcleanup);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   596
        } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   597
        if (descriptor.type == 1 && !founddescriptor)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   598
        {
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   599
            handle->currpos = io->tell(io);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   600
            handle->rootdirstart =
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   601
                    descriptor.rootdirectory.extent_location * 2048;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   602
            handle->rootdirsize =
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   603
                    descriptor.rootdirectory.data_length;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   604
            handle->isjoliet = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   605
            founddescriptor = 1; /* continue search for joliet */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   606
        } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   607
        if (descriptor.type == 2 && !foundjoliet)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   608
        {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   609
            /* check if is joliet */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   610
            PHYSFS_uint8 *s = descriptor.escape_sequences;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   611
            int joliet = !(descriptor.flags & 1)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   612
                    && (s[0] == 0x25)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   613
                    && (s[1] == 0x2F)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   614
                    && ((s[2] == 0x40) || (s[2] == 0x43) || (s[2] == 0x45));
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   615
            if (!joliet)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   616
                continue;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   617
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   618
            handle->currpos = io->tell(io);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   619
            handle->rootdirstart =
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   620
                    descriptor.rootdirectory.extent_location * 2048;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   621
            handle->rootdirsize =
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   622
                    descriptor.rootdirectory.data_length;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   623
            handle->isjoliet = 1;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   624
            founddescriptor = 1;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   625
            foundjoliet = 1;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   626
        } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   627
    } /* while */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   628
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   629
    GOTO_MACRO(ERR_CORRUPTED, errorcleanup);  /* not found. */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   630
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   631
errorcleanup:
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   632
    if (handle)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   633
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   634
        if (handle->path)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   635
            allocator.Free(handle->path);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   636
        if (handle->mutex)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   637
            __PHYSFS_platformDestroyMutex(handle->mutex);
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   638
        allocator.Free(handle);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   639
    } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   640
    return NULL;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   641
} /* ISO9660_openArchive */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   642
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   643
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   644
static void ISO9660_dirClose(dvoid *opaque)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   645
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   646
    ISO9660Handle *handle = (ISO9660Handle*) opaque;
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   647
    handle->io->destroy(handle->io);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   648
    __PHYSFS_platformDestroyMutex(handle->mutex);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   649
    allocator.Free(handle->path);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   650
    allocator.Free(handle);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   651
} /* ISO9660_dirClose */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   652
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   653
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   654
/*******************************************************************************
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   655
 * Read functions
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   656
 ******************************************************************************/
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   657
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   658
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   659
static PHYSFS_uint32 iso_file_read_mem(ISO9660FileHandle *filehandle,
1098
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   660
                                       void *buffer, PHYSFS_uint64 len)
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   661
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   662
    /* check remaining bytes & max obj which can be fetched */
1098
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   663
    const PHYSFS_sint64 bytesleft = filehandle->filesize - filehandle->currpos;
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   664
    if (bytesleft < len)
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   665
        len = bytesleft;
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   666
1098
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   667
    if (len == 0)
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   668
        return 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   669
1098
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   670
    memcpy(buffer, filehandle->cacheddata + filehandle->currpos, (size_t) len);
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   671
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   672
    filehandle->currpos += len;
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   673
    return (PHYSFS_uint32) len;
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   674
} /* iso_file_read_mem */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   675
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   676
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   677
static int iso_file_seek_mem(ISO9660FileHandle *fhandle, PHYSFS_sint64 offset)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   678
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   679
    BAIL_IF_MACRO(offset < 0, ERR_INVALID_ARGUMENT, 0);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   680
    BAIL_IF_MACRO(offset >= fhandle->filesize, ERR_PAST_EOF, 0);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   681
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   682
    fhandle->currpos = offset;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   683
    return 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   684
} /* iso_file_seek_mem */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   685
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   686
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   687
static void iso_file_close_mem(ISO9660FileHandle *fhandle)
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   688
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   689
    allocator.Free(fhandle->cacheddata);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   690
    allocator.Free(fhandle);
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   691
} /* iso_file_close_mem */
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   692
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   693
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   694
static PHYSFS_uint32 iso_file_read_foreign(ISO9660FileHandle *filehandle,
1098
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   695
                                           void *buffer, PHYSFS_uint64 len)
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   696
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   697
    /* check remaining bytes & max obj which can be fetched */
1098
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   698
    const PHYSFS_sint64 bytesleft = filehandle->filesize - filehandle->currpos;
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   699
    if (bytesleft < len)
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   700
        len = bytesleft;
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   701
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   702
    const PHYSFS_sint64 rc = filehandle->io->read(filehandle->io, buffer, len);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   703
    BAIL_IF_MACRO(rc == -1, NULL, -1);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   704
1098
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   705
    filehandle->currpos += rc; /* i trust my internal book keeping */
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   706
    BAIL_IF_MACRO(rc < len, ERR_CORRUPTED, -1);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   707
    return rc;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   708
} /* iso_file_read_foreign */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   709
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   710
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   711
static int iso_file_seek_foreign(ISO9660FileHandle *fhandle,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   712
                                 PHYSFS_sint64 offset)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   713
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   714
    BAIL_IF_MACRO(offset < 0, ERR_INVALID_ARGUMENT, 0);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   715
    BAIL_IF_MACRO(offset >= fhandle->filesize, ERR_PAST_EOF, 0);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   716
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   717
    PHYSFS_sint64 pos = fhandle->startblock * 2048 + offset;
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   718
    BAIL_IF_MACRO(!fhandle->io->seek(fhandle->io, pos), NULL, -1);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   719
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   720
    fhandle->currpos = offset;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   721
    return 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   722
} /* iso_file_seek_foreign */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   723
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   724
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   725
static void iso_file_close_foreign(ISO9660FileHandle *fhandle)
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   726
{
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   727
    fhandle->io->destroy(fhandle->io);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   728
    allocator.Free(fhandle);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   729
} /* iso_file_close_foreign */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   730
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   731
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   732
static int iso_file_open_mem(ISO9660Handle *handle, ISO9660FileHandle *fhandle)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   733
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   734
    fhandle->cacheddata = allocator.Malloc(fhandle->filesize);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   735
    BAIL_IF_MACRO(!fhandle->cacheddata, ERR_OUT_OF_MEMORY, -1);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   736
    int rc = iso_readimage(handle, fhandle->startblock * 2048,
1098
4e86cec1143f Moved all the file i/o from stdio-style to POSIX-style.
Ryan C. Gordon <icculus@icculus.org>
parents: 1097
diff changeset
   737
                           fhandle->cacheddata, fhandle->filesize);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   738
    GOTO_IF_MACRO(rc < 0, NULL, freemem);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   739
    GOTO_IF_MACRO(rc == 0, ERR_CORRUPTED, freemem);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   740
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   741
    fhandle->read = iso_file_read_mem;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   742
    fhandle->seek = iso_file_seek_mem;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   743
    fhandle->close = iso_file_close_mem;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   744
    return 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   745
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   746
freemem:
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   747
    allocator.Free(fhandle->cacheddata);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   748
    return -1;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   749
} /* iso_file_open_mem */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   750
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   751
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   752
static int iso_file_open_foreign(ISO9660Handle *handle,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   753
                                 ISO9660FileHandle *fhandle)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   754
{
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   755
    int rc;
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   756
    fhandle->io = __PHYSFS_createNativeIo(handle->path, 'r');
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   757
    BAIL_IF_MACRO(!fhandle->io, NULL, -1);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   758
    rc = fhandle->io->seek(fhandle->io, fhandle->startblock * 2048);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   759
    GOTO_IF_MACRO(!rc, NULL, closefile);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   760
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   761
    fhandle->read = iso_file_read_foreign;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   762
    fhandle->seek = iso_file_seek_foreign;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   763
    fhandle->close = iso_file_close_foreign;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   764
    return 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   765
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   766
closefile:
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   767
    fhandle->io->destroy(fhandle->io);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   768
    return -1;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   769
} /* iso_file_open_foreign */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   770
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   771
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   772
static PHYSFS_Io *ISO9660_openRead(dvoid *opaque, const char *filename, int *exists)
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   773
{
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   774
    PHYSFS_Io *retval = NULL;
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   775
    ISO9660Handle *handle = (ISO9660Handle*) opaque;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   776
    ISO9660FileHandle *fhandle;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   777
    ISO9660FileDescriptor descriptor;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   778
    int rc;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   779
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   780
    fhandle = allocator.Malloc(sizeof(ISO9660FileHandle));
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   781
    BAIL_IF_MACRO(fhandle == 0, ERR_OUT_OF_MEMORY, NULL);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   782
    fhandle->cacheddata = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   783
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   784
    retval = allocator.Malloc(sizeof(PHYSFS_Io));
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   785
    GOTO_IF_MACRO(retval == 0, ERR_OUT_OF_MEMORY, errorhandling);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   786
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   787
    /* find file descriptor */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   788
    rc = iso_find_dir_entry(handle, filename, &descriptor, exists);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   789
    GOTO_IF_MACRO(rc, NULL, errorhandling);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   790
    GOTO_IF_MACRO(!*exists, ERR_NO_SUCH_FILE, errorhandling);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   791
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   792
    fhandle->startblock = descriptor.extentpos + descriptor.extattributelen;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   793
    fhandle->filesize = descriptor.datalen;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   794
    fhandle->currpos = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   795
    fhandle->isohandle = handle;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   796
    fhandle->cacheddata = NULL;
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   797
    fhandle->io = NULL;
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   798
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   799
    if (descriptor.datalen <= ISO9660_FULLCACHEMAXSIZE)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   800
        rc = iso_file_open_mem(handle, fhandle);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   801
    else
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   802
        rc = iso_file_open_foreign(handle, fhandle);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   803
    GOTO_IF_MACRO(rc, NULL, errorhandling);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   804
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   805
    memcpy(retval, &ISO9660_Io, sizeof (PHYSFS_Io));
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   806
    retval->opaque = fhandle;
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   807
    return retval;
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   808
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   809
errorhandling:
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   810
    if (retval) allocator.Free(retval);
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   811
    if (fhandle) allocator.Free(fhandle);
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   812
    return NULL;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   813
} /* ISO9660_openRead */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   814
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   815
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   816
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   817
/*******************************************************************************
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   818
 * Information gathering functions
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   819
 ******************************************************************************/
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   820
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   821
static void ISO9660_enumerateFiles(dvoid *opaque, const char *dname,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   822
                                   int omitSymLinks,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   823
                                   PHYSFS_EnumFilesCallback cb,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   824
                                   const char *origdir, void *callbackdata)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   825
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   826
    ISO9660Handle *handle = (ISO9660Handle*) opaque;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   827
    ISO9660FileDescriptor descriptor;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   828
    PHYSFS_uint64 readpos;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   829
    PHYSFS_uint64 end_of_dir;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   830
    char filename[130]; /* ISO allows 31, Joliet 128 -> 128 + 2 eol bytes */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   831
    int version = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   832
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   833
    if (*dname == '\0')
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   834
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   835
        readpos = handle->rootdirstart;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   836
        end_of_dir = readpos + handle->rootdirsize;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   837
    } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   838
    else
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   839
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   840
        printf("pfad %s\n",dname);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   841
        int exists = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   842
        BAIL_IF_MACRO(iso_find_dir_entry(handle,dname, &descriptor, &exists), NULL,);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   843
        BAIL_IF_MACRO(exists == 0, NULL, );
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   844
        BAIL_IF_MACRO(!descriptor.flags.directory, NULL,);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   845
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   846
        readpos = descriptor.extentpos * 2048;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   847
        end_of_dir = readpos + descriptor.datalen;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   848
    } /* else */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   849
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   850
    while (1)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   851
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   852
        BAIL_IF_MACRO(iso_readfiledescriptor(handle, readpos, &descriptor), NULL, );
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   853
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   854
        /* recordlen = 0 -> no more entries or fill entry */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   855
        if (!descriptor.recordlen)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   856
        {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   857
            /* if we are in the last sector of the directory & it's 0 -> end */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   858
            if ((end_of_dir - 2048) <= (readpos -1))
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   859
                break;  /* finished */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   860
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   861
            /* else skip to the next sector & continue; */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   862
            readpos = (((readpos - 1) / 2048) + 1) * 2048;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   863
            continue;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   864
        } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   865
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   866
        readpos +=  descriptor.recordlen;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   867
        if (descriptor.filenamelen == 1 && (descriptor.filename[0] == 0
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   868
                || descriptor.filename[0] == 1))
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   869
            continue; /* special ones, ignore */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   870
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   871
        strncpy(filename,descriptor.filename,descriptor.filenamelen);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   872
        iso_extractfilename(handle, &descriptor, filename, &version);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   873
        cb(callbackdata, origdir,filename);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   874
    } /* while */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   875
} /* ISO9660_enumerateFiles */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   876
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   877
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   878
static int ISO9660_exists(dvoid *opaque, const char *name)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   879
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   880
    ISO9660Handle *handle = (ISO9660Handle*) opaque;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   881
    ISO9660FileDescriptor descriptor;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   882
    int exists = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   883
    BAIL_IF_MACRO(iso_find_dir_entry(handle, name, &descriptor, &exists), NULL, -1);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   884
    return exists;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   885
} /* ISO9660_exists */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   886
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   887
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   888
static int ISO9660_stat(dvoid *opaque, const char *name, int *exists,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   889
                        PHYSFS_Stat *stat)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   890
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   891
    ISO9660Handle *handle = (ISO9660Handle*) opaque;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   892
    ISO9660FileDescriptor descriptor;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   893
    ISO9660ExtAttributeRec extattr;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   894
    BAIL_IF_MACRO(iso_find_dir_entry(handle, name, &descriptor, exists), NULL, -1);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   895
    if (!*exists)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   896
        return 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   897
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   898
    stat->readonly = 1;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   899
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   900
    /* try to get extended info */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   901
    if (descriptor.extattributelen)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   902
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   903
        BAIL_IF_MACRO(iso_read_ext_attributes(handle,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   904
                descriptor.extentpos, &extattr), NULL, -1);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   905
        stat->createtime = iso_volume_mktime(&extattr.create_time);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   906
        stat->modtime = iso_volume_mktime(&extattr.mod_time);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   907
        stat->accesstime = iso_volume_mktime(&extattr.mod_time);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   908
    } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   909
    else
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   910
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   911
        stat->createtime = iso_mktime(&descriptor.recordtime);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   912
        stat->modtime = iso_mktime(&descriptor.recordtime);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   913
        stat->accesstime = iso_mktime(&descriptor.recordtime);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   914
    } /* else */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   915
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   916
    if (descriptor.flags.directory)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   917
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   918
        stat->filesize = 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   919
        stat->filetype = PHYSFS_FILETYPE_DIRECTORY;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   920
    } /* if */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   921
    else
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   922
    {
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   923
        stat->filesize = descriptor.datalen;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   924
        stat->filetype = PHYSFS_FILETYPE_REGULAR;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   925
    } /* else */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   926
1106
94c3669d0311 Fixed PHYSFS_stat()'s return value to match rest of PhysicsFS API.
Ryan C. Gordon <icculus@icculus.org>
parents: 1098
diff changeset
   927
    return 1;
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   928
} /* ISO9660_stat */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   929
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   930
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   931
static int ISO9660_isDirectory(dvoid *opaque, const char *name, int *fileExists)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   932
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   933
    ISO9660Handle *handle = (ISO9660Handle*) opaque;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   934
    ISO9660FileDescriptor descriptor;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   935
    BAIL_IF_MACRO(iso_find_dir_entry(handle, name, &descriptor, fileExists), NULL, 0);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   936
    return descriptor.flags.directory;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   937
} /* ISO9660_isDirectory */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   938
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   939
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   940
static int ISO9660_isSymLink(dvoid *opaque, const char *name, int *fileExists)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   941
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   942
    *fileExists = ISO9660_exists(opaque, name);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   943
    return 0;
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   944
} /* ISO9660_isSymLink */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   945
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   946
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   947
/*******************************************************************************
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   948
 * Not supported functions
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   949
 ******************************************************************************/
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   950
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   951
static PHYSFS_Io *ISO9660_openWrite(dvoid *opaque, const char *name)
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   952
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   953
    BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   954
} /* ISO9660_openWrite */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   955
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   956
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   957
static PHYSFS_Io *ISO9660_openAppend(dvoid *opaque, const char *name)
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   958
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   959
    BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   960
} /* ISO9660_openAppend */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   961
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   962
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   963
static int ISO9660_remove(dvoid *opaque, const char *name)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   964
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   965
    BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   966
} /* ISO9660_remove */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   967
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   968
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   969
static int ISO9660_mkdir(dvoid *opaque, const char *name)
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   970
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   971
    BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   972
} /* ISO9660_mkdir */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   973
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   974
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   975
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   976
const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_ISO9660 =
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   977
{
1065
eb39b3977c2d Corrected file extension for ISO9660 archiver.
Ryan C. Gordon <icculus@icculus.org>
parents: 1064
diff changeset
   978
    "ISO",
eb39b3977c2d Corrected file extension for ISO9660 archiver.
Ryan C. Gordon <icculus@icculus.org>
parents: 1064
diff changeset
   979
    "ISO9660 image file",
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   980
    "Christoph Nelles <evilazrael@evilazrael.de>",
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   981
    "http://www.evilazrael.de",
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   982
};
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   983
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   984
const PHYSFS_Archiver __PHYSFS_Archiver_ISO9660 =
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   985
{
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   986
    &__PHYSFS_ArchiveInfo_ISO9660,
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   987
    ISO9660_openArchive,        /* openArchive() method    */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   988
    ISO9660_enumerateFiles,     /* enumerateFiles() method */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   989
    ISO9660_exists,             /* exists() method         */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   990
    ISO9660_isDirectory,        /* isDirectory() method    */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   991
    ISO9660_isSymLink,          /* isSymLink() method      */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   992
    ISO9660_openRead,           /* openRead() method       */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   993
    ISO9660_openWrite,          /* openWrite() method      */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   994
    ISO9660_openAppend,         /* openAppend() method     */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   995
    ISO9660_remove,             /* remove() method         */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   996
    ISO9660_mkdir,              /* mkdir() method          */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   997
    ISO9660_dirClose,           /* dirClose() method       */
1118
2e09fc635fdd Abstracted file i/o into PHYSFS_Io interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1116
diff changeset
   998
    ISO9660_stat                /* stat() method           */
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   999
};
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1000
1066
e1d83e3b5d32 Make ISO9660 archiver optional.
Ryan C. Gordon <icculus@icculus.org>
parents: 1065
diff changeset
  1001
#endif  /* defined PHYSFS_SUPPORTS_ISO9660 */
e1d83e3b5d32 Make ISO9660 archiver optional.
Ryan C. Gordon <icculus@icculus.org>
parents: 1065
diff changeset
  1002
1064
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1003
/* end of archiver_iso9660.c ... */
cc4db73e87d1 ISO9660 archiver, compliments of Christoph Nelles.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1004