network-dns-0.1: A pure Haskell, asyncronous DNS client library Contents Index

Network.DNS.Types

Description

Contains DNS types which users of the DNS library may need to use. Private types are mostly kept in Network.DNS.Common

Synopsis

data DNSType = A | NS | CNAME | SOA | PTR | MX | TXT | AAAA | UnknownDNSType data ResponseCode = NoError | FormatError | ServerError | NXDomain | NotImplemented | AccessDenied data RR = RRCNAME [String] | RRMX [(Int, [String])] | RRNS [String] | RRPTR [String] | RRSOA { soaName :: [String] soaRname :: [String] soaSerial :: Word32 soaRefresh :: Word32 soaRetry :: Word32 soaExpire :: Word32 soaMinTTL :: Word32 } | RRTXT ByteString | RRA [HostAddress] | RRAAAA [HostAddress6] rrToType :: RR -> DNSType

Documentation

data DNSType

Types of DNS resources. RFC 1035, 3.2.2. Constructors A NS CNAME SOA PTR MX TXT AAAA UnknownDNSType This is for internal error handling and should never be used or seen outside Network.DNS Instances Enum DNSType Eq DNSType Ord DNSType Show DNSType

data ResponseCode

Error codes. RFC 1035, 4.1.1. Constructors NoError FormatError The name server was unable to interpret the query ServerError The name server was unable to process this query due to a problem with the name server NXDomain Meaningful only for responses from an authoritative name server, this code signifies that the domain name referenced in the query does not exist NotImplemented The name server does not support the requested kind of query. AccessDenied The name server refuses to perform the specified operation for policy reasons. For example, a name server may not wish to provide the information to the particular requester, or a name server may not wish to perform a particular operation (e.g., zone transfer) for particular data. Instances Bounded ResponseCode Enum ResponseCode Eq ResponseCode Show ResponseCode

data RR

Resource record types. There store the actual data in the DNS database. There's one for each DNSType Constructors RRCNAME [String] RRMX [(Int, [String])] a list of preferences and hostnames RRNS [String] RRPTR [String] RRSOA soaName :: [String] soaRname :: [String] soaSerial :: Word32 soaRefresh :: Word32 soaRetry :: Word32 soaExpire :: Word32 soaMinTTL :: Word32 RRTXT ByteString RRA [HostAddress] RRAAAA [HostAddress6] Instances Show RR

rrToType :: RR -> DNSType

Given an RR, this tells you the resource type of it

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