asda?‰PNG  IHDR ? f ??C1 sRGB ??é gAMA ±? üa pHYs ? ??o¨d GIDATx^íüL”÷e÷Y?a?("Bh?_ò???￠§?q5k?*:t0A-o??￥]VkJ￠M??f?±8\k2íll￡1]q?ù???T 3 bW@s<dZddlmZddlZddlZddlZGdddeZdS)z)DNS nodes. A node is a set of rdatasets.)StringIONc@seZdZdZdgZddZddZddZd d Zd d Z d dZ ddZ e j jdfddZe j jdfddZe j jfddZddZdS)NodezA DNS node. A node is a set of rdatasets @ivar rdatasets: the node's rdatasets @type rdatasets: list of dns.rdataset.Rdataset objects rdatasetscCs g|_dS)zInitialize a DNS node. N)r)selfr/usr/lib/python3.6/node.py__init__$sz Node.__init__cKsPt}x8|jD].}t|dkr|j|j|f||jdqW|jddS)a+Convert a node to text format. Each rdataset at the node is printed. Any keyword arguments to this method are passed on to the rdataset's to_text() method. @param name: the owner name of the rdatasets @type name: dns.name.Name object @rtype: string r N)rrlenwriteto_textgetvalue)rnamekwsrdsrrrr*s   z Node.to_textcCsdtt|dS)Nz )strid)rrrr__repr__;sz Node.__repr__cCs@x|jD]}||jkrdSqWx|jD]}||jkr&dSq&WdS)zSTwo nodes are equal if they have the same rdatasets. @rtype: bool FT)r)rotherZrdrrr__eq__>s    z Node.__eq__cCs |j| S)N)r)rrrrr__ne__Nsz Node.__ne__cCs t|jS)N)r r)rrrr__len__Qsz Node.__len__cCs t|jS)N)iterr)rrrr__iter__Tsz Node.__iter__FcCsHx |jD]}|j|||r|SqW|s*ttjj||}|jj||S)aFind an rdataset matching the specified properties in the current node. @param rdclass: The class of the rdataset @type rdclass: int @param rdtype: The type of the rdataset @type rdtype: int @param covers: The covered type. Usually this value is dns.rdatatype.NONE, but if the rdtype is dns.rdatatype.SIG or dns.rdatatype.RRSIG, then the covers value will be the rdata type the SIG/RRSIG covers. The library treats the SIG and RRSIG types as if they were a family of types, e.g. RRSIG(A), RRSIG(NS), RRSIG(SOA). This makes RRSIGs much easier to work with than if RRSIGs covering different rdata types were aggregated into a single RRSIG rdataset. @type covers: int @param create: If True, create the rdataset if it is not found. @type create: bool @raises KeyError: An rdataset of the desired type and class does not exist and I{create} is not True. @rtype: dns.rdataset.Rdataset object )rmatchKeyErrordnsrdatasetRdatasetappend)rrdclassrdtypecoverscreaterrrr find_rdatasetWs  zNode.find_rdatasetc Cs2y|j||||}Wntk r,d}YnX|S)aEGet an rdataset matching the specified properties in the current node. None is returned if an rdataset of the specified type and class does not exist and I{create} is not True. @param rdclass: The class of the rdataset @type rdclass: int @param rdtype: The type of the rdataset @type rdtype: int @param covers: The covered type. @type covers: int @param create: If True, create the rdataset if it is not found. @type create: bool @rtype: dns.rdataset.Rdataset object or None N)r(r)rr$r%r&r'rrrr get_rdatasetys  zNode.get_rdatasetcCs&|j|||}|dk r"|jj|dS)azDelete the rdataset matching the specified properties in the current node. If a matching rdataset does not exist, it is not an error. @param rdclass: The class of the rdataset @type rdclass: int @param rdtype: The type of the rdataset @type rdtype: int @param covers: The covered type. @type covers: int N)r)rremove)rr$r%r&rrrrdelete_rdatasetszNode.delete_rdatasetcCs:t|tjjstd|j|j|j|j|j j |dS)a8Replace an rdataset. It is not an error if there is no rdataset matching I{replacement}. Ownership of the I{replacement} object is transferred to the node; in other words, this method does not store a copy of I{replacement} at the node, it stores I{replacement} itself. zreplacement is not an rdatasetN) isinstancer r!r" ValueErrorr+r$r%r&rr#)rZ replacementrrrreplace_rdatasets  zNode.replace_rdatasetN)__name__ __module__ __qualname____doc__ __slots__rrrrrrrr Z rdatatypeZNONEr(r)r+r.rrrrrs ! r) r2iorZ dns.rdatasetr Z dns.rdatatypeZ dns.rendererobjectrrrrrs