Struct VolumeTableOfContents 

pub struct VolumeTableOfContents<'a> {

    pub reserved: u8,
    pub track_number_of_first_catalog_sector: u8,
    pub sector_number_of_first_catalog_sector: u8,
    pub release_number_of_dos: u8,
    pub reserved2: &'a [u8],
    pub diskette_volume_number: u8,
    pub reserved3: &'a [u8],
    pub maximum_number_of_track_sector_pairs: u8,
    pub reserved4: &'a [u8],
    pub last_track_where_sectors_were_allocated: u8,
    pub direction_of_track_allocation: i8,
    pub reserved5: &'a [u8],
    pub number_of_tracks_per_diskette: u8,
    pub number_of_sectors_per_track: u8,
    pub number_of_bytes_per_sector: u16,
    pub bit_map_of_free_sectors: Vec<&'a [u8]>,
}

The Volume Table of Contents (VTOC) The VTOC contains

Fields

reserved: u8

Reserved

track_number_of_first_catalog_sector: u8

Track number of first catalog sector

sector_number_of_first_catalog_sector: u8

Sector number of first catalog sector

release_number_of_dos: u8

Release number of DOS used to initialize disk

reserved2: &'a [u8]

Reserved 2 bytes

diskette_volume_number: u8

Diskette volume number (1-254)

reserved3: &'a [u8]

Reserved 0x20 bytes

maximum_number_of_track_sector_pairs: u8

Maximum number of track/sector pairs which will fit in one file track/sector list sector (122 for 256 byte sectors)

reserved4: &'a [u8]

Reserved 8 bytes

last_track_where_sectors_were_allocated: u8

Last track where sectors were allocated

direction_of_track_allocation: i8

Direction of track allocation, +1 or -1

reserved5: &'a [u8]

Reserved 2 bytes

number_of_tracks_per_diskette: u8

Number of tracks per diskette (normally 35)

number_of_sectors_per_track: u8

Number of sectors per track (13 or 16)

number_of_bytes_per_sector: u16

Number of bytes per sector (little endian format)

bit_map_of_free_sectors: Vec<&'a [u8]>

bytes 0x38 - 0xFF Each bit map of free sectors for a track is four bytes long There is one for each track, usually 35 in DOS 3.3 disks

Trait Implementations

impl Display for VolumeTableOfContents<'_>

Format a Format for display

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl SanityCheck for VolumeTableOfContents<'_>

fn check(&self) -> bool

Perform a set of data-dependent sanity checks on a structure Returns true if the object passes the checks Return false if the object fails the tests