dns.rcode

Package dns :: Module rcode

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Module dns.rcode

DNS Result Codes.

Exceptions
`UnknownRcode`	Raised if an rcode is unknown.

Function Summary
int	`from_flags(flags, ednsflags)` Return the rcode value encoded by flags and ednsflags.
int	`from_text(text)` Convert text into an rcode.
(int, int) tuple	`to_flags(value)` Return a (flags, ednsflags) tuple which encodes the rcode.
string	`to_text(value)` Convert rcode into text.

Variable Summary
`int`	`BADVERS` = 16
`int`	`FORMERR` = 1
`int`	`NOERROR` = 0
`int`	`NOTAUTH` = 9
`int`	`NOTIMP` = 4
`int`	`NOTZONE` = 10
`int`	`NXDOMAIN` = 3
`int`	`NXRRSET` = 8
`int`	`REFUSED` = 5
`int`	`SERVFAIL` = 2
`int`	`YXDOMAIN` = 6
`int`	`YXRRSET` = 7
`dict`	`_by_text` = `{'YXRRSET': 7, 'FORMERR': 1, 'NXRRSET': 8, 'N...`
`dict`	`_by_value` = `{0: 'NOERROR', 1: 'FORMERR', 2: 'SERVFAIL', ...`

Function Details

from_flags(flags, ednsflags)

Return the rcode value encoded by flags and ednsflags.

Parameters:: flags - the DNS flags
(type=int); ednsflags - the EDNS flags
(type=int)

Returns:: int

Raises:: ValueError - rcode is < 0 or > 4095

from_text(text)

Convert text into an rcode.

Parameters:: text - the texual rcode
(type=string)

Returns:: int

Raises:: UnknownRcode - the rcode is unknown

to_flags(value)

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

Parameters:: value - the rcode
(type=int)

Returns:: (int, int) tuple

Raises:: ValueError - rcode is < 0 or > 4095

to_text(value)

Convert rcode into text.

Parameters:: value - the rcode
(type=int)

Returns:: string

Variable Details

BADVERS

Type:: int
Value:: 16

FORMERR

Type:: int
Value:: 1

NOERROR

Type:: int
Value:: 0

NOTAUTH

Type:: int
Value:: 9

NOTIMP

Type:: int
Value:: 4

NOTZONE

Type:: int
Value:: 10

NXDOMAIN

Type:: int
Value:: 3

NXRRSET

Type:: int
Value:: 8

REFUSED

Type:: int
Value:: 5

SERVFAIL

Type:: int
Value:: 2

YXDOMAIN

Type:: int
Value:: 6

YXRRSET

Type:: int
Value:: 7

_by_text

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

_by_value

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

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