Enum dominion::ParseError

pub enum ParseError {
    HeaderLength(usize),
    HeaderFlag(&'static str, u16),
    InvalidJump,
    ExcesiveJumps(u8),
    LabelLength(usize),
    LabelPrefix(u8),
    NameLength(usize),
    OobRead(usize),
    NonUtf8(Utf8Error),
}

An error was encountered when trying to parse a byte buffer into a DNS packet

Variants

HeaderLength(usize)

The length of the header is too small.

HeaderFlag(&'static str, u16)

Some header flag used a value that has not been implemented.

InvalidJump

There was a jump to a position forward in the packet (it does not follow the specification) or to itself (it is not sound as it would result in a DoS).

ExcesiveJumps(u8)

Some domain name has been compressed with too many jumps. This error may be removed in the future.

LabelLength(usize)

Some label in the DNS packet it too long, overflowing the packet or not following the DNS specification.

LabelPrefix(u8)

The DNS packet contains a label prefix that is not a length prefix or a pointer. Those values dont have a standard definition so are not implemented.

NameLength(usize)

One of the labels in the packet has a length that is bigger than the DNS specification.

OobRead(usize)

The packet tried to cause an out-of-bound read.

NonUtf8(Utf8Error)

Some label in one of the domain names is not valid UTF-8.

Trait Implementations

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl Error for ParseError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide(&'a self, req: &mut Demand<'a>)

🔬 This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports.

impl From<Utf8Error> for ParseError

fn from(source: Utf8Error) -> ParseError

Converts to this type from the input type.