Struct Header 

pub struct Header {

    pub transaction_id: u16,
    pub flags: u16,
    pub query_response: QueryResponse,
    pub opcode: OpCode,
    pub authoritative: bool,
    pub truncated: bool,
    pub recursion_desired: bool,
    pub recursion_available: bool,
    pub zflag: bool,
    pub authenticated_data: bool,
    pub check_disabled: bool,
    pub rcode: ResponseCode,
    pub qdcount: u16,
    pub ancount: u16,
    pub nscount: u16,
    pub arcount: u16,
}

A parsed DNS header

Fields

transaction_id: u16

Transaction ID

flags: u16

Raw header flags

query_response: QueryResponse

QueryResponse::Query or QueryResponse::Response

opcode: OpCode

Type of query

authoritative: bool

Is the name server an authority for this domain name?

truncated: bool

Was this msg truncated?

recursion_desired: bool

Should the name server pursue the query recursively?

recursion_available: bool

Can the name server pursue the query recursively?

zflag: bool

Z flag is set?

authenticated_data: bool

All data authenticated by the server

check_disabled: bool

rcode: ResponseCode

Name server success/error state

qdcount: u16

Number of questions provided

ancount: u16

Number of answers provided

nscount: u16

Number of name server resource records in the auth records

arcount: u16

Number of resource records in the additional records section

Implementations

impl Header

pub fn parse(input: &[u8]) -> Result<(&[u8], (Header, Flags<ErrorFlags>))>

Trait Implementations

impl Debug for Header

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

Formats the value using the given formatter.

impl PartialEq for Header

fn eq(&self, other: &Header) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Header

impl StructuralPartialEq for Header