107 lines
4.3 KiB
C
107 lines
4.3 KiB
C
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#ifndef ISOVOLDESC_H
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#define ISOVOLDESC_H
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// Volume Descriptor types
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#define ISO_VD_PRIMARY 0x01
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#define ISO_VD_SUPPLEMENTARY 0x02
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#define ISO_VD_END 0xFF
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// Volume Descriptor ID
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#define ISO_VD_ID "CD001"
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// Volume Descriptor offset in image
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#define ISO_VD_START 0x8000
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// Index for LE/BE data
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#define ISO_LSB_INDEX 0
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#define ISO_MSB_INDEX 1
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#if 0
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#define PACKED _PACKED
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#else
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#define PACKED
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#endif
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typedef struct iso_vol_date {
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char year[4]; // year (*not* ASCIIZ)
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char month[2]; // month (1-12) (*not* ASCIIZ)
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char day[2]; // day of the month (1-31) (*not* ASCIIZ)
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char hour[2]; // hour (00-23) (*not* ASCIIZ)
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char minute[2]; // minute (00-59) (*not* ASCIIZ)
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char second[2]; // second (00-59) (*not* ASCIIZ)
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char hundrSecond[2]; // hundr. of a sec (00-99) (*not* ASCIIZ)
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signed char gmtOffset; // offset from GMT, in 15-minute intervals
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} PACKED iso_vol_date;
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typedef struct iso_dir_entry {
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unsigned char recordLength; // Total length of this record
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unsigned char extAttrSecCount; // Number of sectors in extended attr record
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unsigned long dataStartSector[2]; // Sector # of 1st data sector for file/dir
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unsigned long dataLength[2]; // Length of data for file/directory
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unsigned char year; // Years since 1900
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unsigned char month; // Month (1=jan, etc)
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unsigned char day; // Day of the month (1-31)
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unsigned char hour; // Hour (0-23)
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unsigned char minute; // Minute (0-59)
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unsigned char second; // Second (0-59)
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signed char gmtOffset; // GMT offset in 15 minutes intervals
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unsigned char flags; // Flags
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unsigned char unitSize; // Unit size for interleaved file (0)
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unsigned char gapSize; // Gap size for interleaved file (0)
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unsigned short volSeqNumber[2]; // Volume sequence number
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unsigned char nameLength; // Length of name
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char name[32]; // Name + padding (nameLength [+1])
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} PACKED iso_dir_entry;
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typedef struct iso_path_entry {
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unsigned char nameLength; // Length of directory name
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unsigned char extAttrSecCount; // Number of sectors in extended attr record
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unsigned long dataStartSector; // Sector # of 1st data sector for directory
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unsigned short parentDirRec; // Record # of parent directory
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unsigned char name[32]; // Name of this entry (nameLength bytes)
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} PACKED iso_path_entry;
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typedef struct iso_volume_descriptor {
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unsigned char type; // ISO_VD_PRIMARY / ISO_VD_SUPPLEMENTARY
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char id[5]; // ISO_VD_ID
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unsigned char undef1; // 1
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unsigned char undef2; // 0
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unsigned char systemID[32]; // System Identifier (*not* ASCIIZ)
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unsigned char volumeID[32]; // Volume Identifier (*not* ASCIIZ)
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unsigned char undef3[8]; // all 0
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unsigned long numSectors[2]; // Total Number Of Sectors (little+big endian)
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unsigned char undef4[32]; // all 0
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unsigned short volSetSize[2]; // Volume Set Size (little+big endian)
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unsigned short volSeqNumber[2]; // Volume Sequence Number (little+big endian)
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unsigned short sectorSize[2]; // Sector Size (little+big endian)
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unsigned long pathTblSize[2]; // Path Table Size (bytes) (little+big endian)
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unsigned long lePathTbl1Sector; // First sector of LE Path Table
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unsigned long lePathTbl2Sector; // First sector of 2nd LE Path Table
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unsigned long bePathTbl1Sector; // First sector of BE Path Table
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unsigned long bePathTbl2Sector; // First sector of 2nd BE Path Table
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/* Root Directory Entry */
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unsigned char rootDirEntry[34]; // To use, cast to iso_dir_entry
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char volumeSetID[128]; // Volume Set Identifier (*not* ASCIIZ)
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char publisherID[128]; // Publisher Identifier (*not* ASCIIZ)
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char dataPreparerID[128];// Data Preparer Identifier (*not* ASCIIZ)
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char applicationID[128]; // Application Identifier (*not* ASCIIZ)
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char copyrightFile[37]; // Copyright File Identifier(*not* ASCIIZ)
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char abstractFile[37]; // Abstract File Identifier (*not* ASCIIZ)
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char bibliogrFile[37]; // Bibliographical File Id. (*not* ASCIIZ)
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iso_vol_date dateCreation; // Date and Time of volume creation
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iso_vol_date dateModification; // Date and Time of volume modification
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iso_vol_date dateExpires; // Date and Time that volume expires
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iso_vol_date dateEffective; // Date and Time that volume comes effective
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unsigned char undef5; // 1
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unsigned char undef6; // 0
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unsigned char forAppUse[512]; // usually zeroes
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unsigned char undef7[653]; // all 0
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} PACKED iso_volume_descriptor;
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#endif
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