Enum trust_dns::op::OpCode

pub enum OpCode {
    Query,
    Status,
    Notify,
    Update,
}

Operation code for queries, updates, and responses

RFC 1035, DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION, November 1987

OPCODE          A four bit field that specifies kind of query in this
                message.  This value is set by the originator of a query
                and copied into the response.  The values are:

                0               a standard query (QUERY)

                1               an inverse query (IQUERY)

                2               a server status request (STATUS)

                3-15            reserved for future use

Variants

Query

Query request RFC 1035

Status

Status message RFC 1035

Notify

Notify of change RFC 1996

Update

Update message RFC 2136

Methods

impl OpCode

Convert from u8 to OpCode

use std::convert::From;
use trust_dns_proto::op::op_code::OpCode;

let var: OpCode = OpCode::from_u8(0).unwrap();
assert_eq!(OpCode::Query, var);

fn from_u8(value: u8) -> Result<OpCode, ProtoError>

Decodes the binary value of the OpCode

Trait Implementations

impl Copy for OpCode

impl Clone for OpCode

fn clone(&self) -> OpCode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq<OpCode> for OpCode

fn eq(&self, __arg_0: &OpCode) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Debug for OpCode

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialOrd<OpCode> for OpCode

fn partial_cmp(&self, __arg_0: &OpCode) -> Option<Ordering>