twisted.names.dns.RRHeader

Class Variable	fmt	`str` specifying the byte format of an RR.
Instance Variable	name	The name about which this reply contains information. (type: `Name`)
Instance Variable	type	The query type of the original request. (type: `int`)
Instance Variable	cls	The query class of the original request.
Instance Variable	ttl	The time-to-live for this record. (type: `int`)
Instance Variable	payload	An object that implements the `IEncodable` interface
Instance Variable	auth	A `bool` indicating whether this `RRHeader` was parsed from an authoritative message.
Method	__init__
Method	encode	Write a representation of this object to the given file object.
Method	decode	Reconstruct an object from data read from the given file object.
Method	isAuthoritative	Undocumented
Method	__str__	Undocumented

Inherited from FancyEqMixin:

Method	__eq__	Undocumented
Method	__ne__	Undocumented

fmt =

str specifying the byte format of an RR.

name =

The name about which this reply contains information. (type: Name)

type =

The query type of the original request. (type: int)

cls =

The query class of the original request.

ttl =

The time-to-live for this record. (type: int)

payload =

An object that implements the IEncodable interface

auth =

A bool indicating whether this RRHeader was parsed from an authoritative message.

def __init__(self, name='', type=A, cls=IN, ttl=0, payload=None, auth=False):

Parameters	name	See `RRHeader.name` (type: `bytes` or `str`)
	type	The query type. (type: `int`)
	cls	The query class. (type: `int`)
	ttl	Time to live for this record. This will be converted to an `int`. (type: `int`)
	payload	A Query Type specific data object. (type: An object implementing `IEncodable`)
Raises	TypeError	if the ttl cannot be converted to an `int`.
	ValueError	if the ttl is negative.

def encode(self, strio, compDict=None):

Write a representation of this object to the given file object.

Parameters	strio	The buffer to write to. It must have a `tell()` method. (type: File-like object)
	compDict	A mapping of names to byte offsets that have already been written to the buffer, which may be used for compression (see RFC 1035 section 4.1.4). When `None`, encode without compression. (type: `dict` of `bytes` to `int` r `None`)

def decode(self, strio, length=None):

Reconstruct an object from data read from the given file object.

Parameters	strio	A seekable buffer from which bytes may be read. (type: File-like object)
	length	The number of bytes in this RDATA field. Most implementations can ignore this value. Only in the case of records similar to TXT where the total length is in no way encoded in the data is it necessary. (type: `int` or `None`)

def isAuthoritative(self):

Undocumented

def __str__(self):

Undocumented

twisted.names.dns.RRHeader(tputil.FancyEqMixin) class documentation