Struct OffsetContext

pub struct OffsetContext {
    pub ifd_start: u64,
    pub maker_note_start: u64,
    pub current_position: u64,
    pub file_size: u64,
}

Context for offset calculations ExifTool: Provides reference points for relative offset calculations

Fields

ifd_start: u64

Start of current IFD in file ExifTool: IFD base position

maker_note_start: u64

Start of maker note data in file ExifTool: Maker note base position

current_position: u64

Current read position in file ExifTool: Current file position

file_size: u64

Total file size (for bounds checking) ExifTool: File size for validation

Implementations

impl OffsetContext

pub fn new( ifd_start: u64, maker_note_start: u64, current_position: u64, file_size: u64, ) -> Self

Create new offset context

pub fn validate_offset(&self, offset: u64, data_size: u64) -> Result<()>

Validate that offset is within file bounds ExifTool: Bounds checking for calculated offsets

Trait Implementations

impl Clone for OffsetContext

fn clone(&self) -> OffsetContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OffsetContext

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

Formats the value using the given formatter.