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BerReader

Struct BerReader 

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

A reader for BER-encoded data.

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impl<'a> BerReader<'a>

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

Create a new BER reader.

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pub fn position(&self) -> usize

Get the current position.

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

Get the remaining bytes.

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pub fn has_more(&self) -> bool

Check if there is more data to read.

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

Peek at the next tag without advancing.

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pub fn read_tag(&mut self) -> Result<Tag>

Read a tag.

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pub fn read_length(&mut self) -> Result<Length>

Read a length.

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pub fn read_bytes(&mut self, count: usize) -> Result<&'a [u8]>

Read raw bytes.

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

Read a TLV (Tag-Length-Value) and return the value bytes.

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

Read a boolean value.

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

Read an integer value.

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pub fn read_context_integer(&mut self, expected_tag: u32) -> Result<i64>

Read an integer with a context tag.

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pub fn read_real(&mut self) -> Result<f64>

Read a real (floating point) value.

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pub fn read_utf8_string(&mut self) -> Result<String>

Read a UTF-8 string.

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pub fn read_octet_string(&mut self) -> Result<Vec<u8>>

Read an octet string.

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pub fn read_sequence(&mut self) -> Result<BerReader<'a>>

Read a sequence and return a reader for its contents.

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pub fn read_context(&mut self, expected_tag: u32) -> Result<BerReader<'a>>

Read a context-tagged value and return a reader for its contents.

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pub fn read_application(&mut self, expected_tag: u32) -> Result<BerReader<'a>>

Read an application-tagged value and return a reader for its contents.

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pub fn skip(&mut self) -> Result<()>

Skip the current TLV.

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pub fn read_relative_oid(&mut self) -> Result<Vec<u32>>

Read a relative OID.

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impl<'a> Debug for BerReader<'a>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a> Freeze for BerReader<'a>

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impl<'a> RefUnwindSafe for BerReader<'a>

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impl<'a> Send for BerReader<'a>

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impl<'a> Sync for BerReader<'a>

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impl<'a> Unpin for BerReader<'a>

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impl<'a> UnsafeUnpin for BerReader<'a>

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impl<'a> UnwindSafe for BerReader<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more