Struct FileHeader 

pub struct FileHeader {
    pub version: u32,
    pub dir_offset: u64,
    pub chunk_count: u32,
    pub flags: u32,
    pub total_uncompressed_size: u64,
}

The fixed 32-byte file header at offset 0.

Fields

version: u32

Container format version. 1 for this specification.

dir_offset: u64

Byte offset from the start of the file to the chunk directory.

chunk_count: u32

Number of chunks, matching the directory entries.

flags: u32

Bitfield: bit 1 MULTI_SECTOR, bit 3 ENCRYPTED.

total_uncompressed_size: u64

Sum of uncompressed chunk sizes, or 0 when unknown.

Implementations

impl FileHeader

pub fn parse(buf: &[u8]) -> Result<FileHeader>

Parse the fixed header.

pub fn to_bytes(&self) -> [u8; 32]

Serialize to exactly 32 bytes.

pub fn multi_sector(&self) -> bool

Whether the file declares sector-based layer encoding.

pub fn encrypted(&self) -> bool

Whether the file declares an AUTH chunk and sealed content.

pub fn reserved_flags(&self) -> u32

Flags a v1 writer must leave clear.

Trait Implementations

impl Clone for FileHeader

fn clone(&self) -> FileHeader

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for FileHeader

impl Debug for FileHeader

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

Formats the value using the given formatter.

impl Eq for FileHeader

impl PartialEq for FileHeader

fn eq(&self, other: &FileHeader) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for FileHeader