Struct PemReader 

pub struct PemReader<'i> { /* private fields */ }

Available on crate feature pem only.

Reader type which decodes PEM on-the-fly.

Implementations

impl<'i> PemReader<'i>

pub fn new(pem: &'i [u8]) -> Result<Self>

Create a new PEM reader which decodes data on-the-fly.

Uses the default 64-character line wrapping.

pub fn type_label(&self) -> &'i str

Get the PEM label which will be used in the encapsulation boundaries for this document.

Trait Implementations

impl<'i> Clone for PemReader<'i>

fn clone(&self) -> PemReader<'i>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'i> Reader<'i> for PemReader<'i>

fn input_len(&self) -> Length

Get the length of the input.

fn peek_byte(&self) -> Option<u8>

Peek at the next byte of input without modifying the cursor.

fn peek_header(&self) -> Result<Header>

Peek forward in the input data, attempting to decode a Header from the data at the current position in the decoder.

fn position(&self) -> Length

Get the position within the buffer.

fn read_slice(&mut self, _len: Length) -> Result<&'i [u8]>

Attempt to read data borrowed directly from the input as a slice, updating the internal cursor position.

fn read_into<'o>(&mut self, buf: &'o mut [u8]) -> Result<&'o [u8]>

Attempt to read input data, writing it into the provided buffer, and returning a slice on success.

fn context_specific<T>( &mut self, tag_number: TagNumber, tag_mode: TagMode, ) -> Result<Option<T>>

where T: DecodeValue<'r> + FixedTag,

Attempt to decode an ASN.1 CONTEXT-SPECIFIC field with the provided TagNumber.

fn decode<T: Decode<'r>>(&mut self) -> Result<T>

Decode a value which impls the Decode trait.

fn error(&mut self, kind: ErrorKind) -> Error

Return an error with the given ErrorKind, annotating it with context about where the error occurred.

fn finish<T>(self, value: T) -> Result<T>

Finish decoding, returning the given value if there is no remaining data, or an error otherwise

fn is_finished(&self) -> bool

Have we read all of the input data?

fn offset(&self) -> Length

Offset within the original input stream.

fn peek_tag(&self) -> Result<Tag>

Peek at the next byte in the decoder and attempt to decode it as a Tag value.

fn read_byte(&mut self) -> Result<u8>

Read a single byte.

fn read_nested<'n, T, F>(&'n mut self, len: Length, f: F) -> Result<T>

where F: FnOnce(&mut NestedReader<'n, Self>) -> Result<T>,

Read nested data of the given length.

fn read_vec(&mut self, len: Length) -> Result<Vec<u8>>

Available on crate feature alloc only.

Read a byte vector of the given length.

fn remaining_len(&self) -> Length

Get the number of bytes still remaining in the buffer.

fn sequence<'n, F, T>(&'n mut self, f: F) -> Result<T>

where F: FnOnce(&mut NestedReader<'n, Self>) -> Result<T>,

Read an ASN.1 SEQUENCE, creating a nested Reader for the body and calling the provided closure with it.

fn tlv_bytes(&mut self) -> Result<&'r [u8]>

Obtain a slice of bytes contain a complete TLV production suitable for parsing later.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 392 bytes