Package dns :: Module rcode

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Module rcode

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DNS Result Codes.

Classes

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UnknownRcode
A DNS rcode is unknown.

Functions

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from_text(text)
Convert text into an rcode.

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from_flags(flags, ednsflags)
Return the rcode value encoded by flags and ednsflags.

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to_flags(value)
Return a (flags, ednsflags) tuple which encodes the rcode.

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to_text(value)
Convert rcode into text.

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Variables

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NOERROR = 0

FORMERR = 1

SERVFAIL = 2

NXDOMAIN = 3

NOTIMP = 4

REFUSED = 5

YXDOMAIN = 6

YXRRSET = 7

NXRRSET = 8

NOTAUTH = 9

NOTZONE = 10

BADVERS = 16

_by_text = {'BADVERS': 16, 'FORMERR': 1, 'NOERROR': 0, 'NOTAUT...

_by_value = {0: 'NOERROR', 1: 'FORMERR', 2: 'SERVFAIL', 3: 'NX...

__package__ = 'dns'

Function Details

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from_text(text)

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Convert text into an rcode.

*text*, a ``text``, the textual rcode or an integer in textual form.

Raises ``dns.rcode.UnknownRcode`` if the rcode mnemonic is unknown.

Returns an ``int``.

from_flags(flags, ednsflags)

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Return the rcode value encoded by flags and ednsflags.

*flags*, an ``int``, the DNS flags field.

*ednsflags*, an ``int``, the EDNS flags field.

Raises ``ValueError`` if rcode is < 0 or > 4095

Returns an ``int``.

to_flags(value)

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Return a (flags, ednsflags) tuple which encodes the rcode.

*value*, an ``int``, the rcode.

Raises ``ValueError`` if rcode is < 0 or > 4095.

Returns an ``(int, int)`` tuple.

to_text(value)

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Convert rcode into text.

*value*, and ``int``, the rcode.

Raises ``ValueError`` if rcode is < 0 or > 4095.

Returns a ``text``.

Variables Details

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_by_text

Value:

{'BADVERS': 16,
 'FORMERR': 1,
 'NOERROR': 0,
 'NOTAUTH': 9,
 'NOTIMP': 4,
 'NOTZONE': 10,
 'NXDOMAIN': 3,
 'NXRRSET': 8,
...

_by_value

Value:

{0: 'NOERROR',
 1: 'FORMERR',
 2: 'SERVFAIL',
 3: 'NXDOMAIN',
 4: 'NOTIMP',
 5: 'REFUSED',
 6: 'YXDOMAIN',
 7: 'YXRRSET',
...