Struct BerReader 

pub struct BerReader<'a> { /* private fields */ }

Zero-copy BER decoder over a byte slice.

Implementations

impl<'a> BerReader<'a>

pub fn new(input: &'a [u8]) -> Self

pub fn with_max_depth(self, max: u16) -> Self

pub fn with_max_element_size(self, max: u32) -> Self

pub fn is_empty(&self) -> bool

pub fn remaining(&self) -> &'a [u8]

pub fn peek_tag(&self) -> Result<Tag, BerError>

Peek at the tag of the next element without consuming it.

pub fn read_element(&mut self) -> Result<(Tag, &'a [u8]), BerError>

Read the next TLV element, returning (tag, value_bytes).

pub fn read_sequence<F, T>( &mut self, expected_tag: Tag, f: F, ) -> Result<T, BerError>

where F: FnOnce(&mut BerReader<'_>) -> Result<T, BerError>,

Read a constructed element (SEQUENCE, SET, or context-tagged), passing a sub-reader scoped to its contents.

pub fn read_sequence_lax<F, T>( &mut self, expected_tag: Tag, f: F, ) -> Result<T, BerError>

where F: FnOnce(&mut BerReader<'_>) -> Result<T, BerError>,

Like read_sequence but allows trailing data in the constructed element.

pub fn read_integer(&mut self) -> Result<i64, BerError>

pub fn read_octet_string(&mut self) -> Result<&'a [u8], BerError>

pub fn read_boolean(&mut self) -> Result<bool, BerError>

pub fn read_enumerated(&mut self) -> Result<i64, BerError>

pub fn read_tagged_value(&mut self) -> Result<(Tag, &'a [u8]), BerError>

Read an element with any tag, returning its raw bytes.

pub fn read_tagged_implicit_octet_string( &mut self, expected_number: u32, ) -> Result<&'a [u8], BerError>

Read a tagged implicit octet string (context-tagged primitive).