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3
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Zdd ZG dd deZG dd deZi ZdZ dd Z d ddZ d ddZ dS ) a DNS rdata.
@var _rdata_modules: A dictionary mapping a (rdclass, rdtype) tuple to
the module which implements that type.
@type _rdata_modules: dict
@var _module_prefix: The prefix to use when forming modules names. The
default is 'dns.rdtypes'. Changing this value will break the library.
@type _module_prefix: string
@var _hex_chunk: At most this many octets that will be represented in each
chunk of hexstring that _hexify() produces before whitespace occurs.
@type _hex_chunk: int )BytesION )xrange string_types text_type c s4 t j| dj fddtdt D j S )a Convert a binary string into its hex encoding, broken up into chunks
of I{chunksize} characters separated by a space.
@param data: the binary string
@type data: string
@param chunksize: the chunk size. Default is L{dns.rdata._hex_chunksize}
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c s g | ]}|| qS r ).0i) chunksizeliner /usr/lib/python3.6/rdata.py
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@param data: the binary string
@type data: string
@param chunksize: the chunk size. Default is
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r c s g | ]}|| qS r r )r
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S )4Rdataz(Base class for all DNS rdata types.
rdclassrdtypec C s || _ || _dS )zInitialize an rdata.
@param rdclass: The rdata class
@type rdclass: int
@param rdtype: The rdata type
@type rdtype: int
N)r' r( )selfr' r( r r r __init__~ s zRdata.__init__c C s t jjS )a_ DNS SIG/RRSIG rdatas apply to a specific type; this type is
returned by the covers() function. If the rdata type is not
SIG or RRSIG, dns.rdatatype.NONE is returned. This is useful when
creating rdatasets, allowing the rdataset to contain only RRSIGs
of a particular type, e.g. RRSIG(NS).
@rtype: int
)dns rdatatypeNONE)r) r r r covers s z Rdata.coversc C s | j d> | jB S )zReturn a 32-bit type value, the least significant 16 bits of
which are the ordinary DNS type, and the upper 16 bits of which are
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@rtype: string
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Rdata.to_wirec C s t }| j|d| |j S )zlConvert rdata to a format suitable for digesting in hashes. This
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to_digestable s zRdata.to_digestablec C s t jj| j| j| j dS )zCheck that the current contents of the rdata's fields are
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N)r+ rdata from_textr' r( r5 )r) r r r validate s zRdata.validatec C sf | j }|tjjkrd}ndtjj| d }dtjj| j d tjj| j | d t| d S )Nr ()z) r. r+ r, r- r5
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Rdata.__str__c C s8 | j tjj}|j tjj}||kr(dS ||kr4dS dS )zCompare an rdata with another rdata of the same rdtype and
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r r r$ )r; r+ nameroot)r) otherZourZtheirr r r _cmp s z
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z Rdata.__ne__c C s6 t |t s$| j|jks$| j|jkr(tS | j|dk S )Nr )r r& r' r( NotImplementedrJ )r) rI r r r __lt__ s z Rdata.__lt__c C s6 t |t s$| j|jks$| j|jkr(tS | j|dkS )Nr )r r& r' r( rM rJ )r) rI r r r __le__ s z Rdata.__le__c C s6 t |t s$| j|jks$| j|jkr(tS | j|dkS )Nr )r r& r' r( rM rJ )r) rI r r r __ge__ s z Rdata.__ge__c C s6 t |t s$| j|jks$| j|jkr(tS | j|dkS )Nr )r r& r' r( rM rJ )r) rI r r r __gt__ s z Rdata.__gt__c C s t | jtjjS )N)hashr; r+ rG rH )r) r r r __hash__ s zRdata.__hash__c C s t dS )a Build an rdata object from text format.
@param rdclass: The rdata class
@type rdclass: int
@param rdtype: The rdata type
@type rdtype: int
@param tok: The tokenizer
@type tok: dns.tokenizer.Tokenizer
@param origin: The origin to use for relative names
@type origin: dns.name.Name
@param relativize: should names be relativized?
@type relativize: bool
@rtype: dns.rdata.Rdata instance
N)r1 )clsr' r( tokr2 r3 r r r r= s zRdata.from_textc C s t dS )a< Build an rdata object from wire format
@param rdclass: The rdata class
@type rdclass: int
@param rdtype: The rdata type
@type rdtype: int
@param wire: The wire-format message
@type wire: string
@param current: The offset in wire of the beginning of the rdata.
@type current: int
@param rdlen: The length of the wire-format rdata
@type rdlen: int
@param origin: The origin to use for relative names
@type origin: dns.name.Name
@rtype: dns.rdata.Rdata instance
N)r1 )rT r' r( wirecurrentrdlenr2 r r r from_wire s zRdata.from_wirec C s dS )zWConvert any domain names in the rdata to the specified
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Nr )r) r2 r3 r r r choose_relativity& s zRdata.choose_relativity)NT)NN)N)NT)N)NT)__name__
__module__ __qualname____doc__ __slots__r* r. r0 r5 r8 r; r> rE rF rJ rK rL rN rO rP rQ rS classmethodr= rY rZ r r r r r& w s0
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r c s t t| j|| || _d S )N)superra r* r )r) r' r( r ) __class__r r r* 8 s zGenericRdata.__init__NTc K s dt | j t| j S )Nz\# %d )r r r )r) r2 r3 r4 r r r r5 < s zGenericRdata.to_textc C s |j }|j s |jdkr(tjjd|j }g }x&|j }|j rHP |j|jj q6W dj
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|S |j | ||||S )ad Build an rdata object from text format.
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with the parameters to this function.
If I{tok} is a string, then a tokenizer is created and the string
is used as its input.
@param rdclass: The rdata class
@type rdclass: int
@param rdtype: The rdata type
@type rdtype: int
@param tok: The tokenizer or input text
@type tok: dns.tokenizer.Tokenizer or string
@param origin: The origin to use for relative names
@type origin: dns.name.Name
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@type relativize: bool
@rtype: dns.rdata.Rdata instancez\#r )r r r+ Z tokenizer Tokenizerr| ra re Zungetrf rg r= rY r r )r' r( rU r2 r3 rT rj r< r r r r= s
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implements the specified rdata class and type. If there is no
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with the parameters to this function.
@param rdclass: The rdata class
@type rdclass: int
@param rdtype: The rdata type
@type rdtype: int
@param wire: The wire-format message
@type wire: string
@param current: The offset in wire of the beginning of the rdata.
@type current: int
@param rdlen: The length of the wire-format rdata
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