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dns.h File Reference

#include "socket.h"
#include "hashcomp.h"

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Classes
class	DNSResult
	Result status, used internally. More...
class	CachedQuery
	Cached item stored in the query cache. More...
class	Resolver
	The Resolver class is a high-level abstraction for resolving DNS entries. More...
class	DNS
	DNS is a singleton class used by the core to dispatch dns requests to the dns server, and route incoming dns replies back to Resolver objects, based upon the request ID. More...
Typedefs
typedef std::pair< unsigned char *, std::string >	DNSInfo
	Information on a completed lookup, used internally.
typedef nspace::hash_map< irc::string, CachedQuery, nspace::hash< irc::string > >	dnscache
	DNS cache information.
Enumerations
enum	ResolverError {   RESOLVER_NOERROR = 0, RESOLVER_NSDOWN = 1, RESOLVER_NXDOMAIN = 2, RESOLVER_NOTREADY = 3,   RESOLVER_BADIP = 4, RESOLVER_TIMEOUT = 5, RESLOVER_FORCEUNLOAD = 6 }
	Error types that class Resolver can emit to its error method. More...
enum	QueryType {   DNS_QUERY_NONE = 0, DNS_QUERY_A = 1, DNS_QUERY_CNAME = 5, DNS_QUERY_PTR = 12,   DNS_QUERY_AAAA = 28, DNS_QUERY_PTR4 = 0xFFFD, DNS_QUERY_PTR6 = 0xFFFE }
	Query and resource record types. More...
enum	ForceProtocol { PROTOCOL_IPV4 = 0, PROTOCOL_IPV6 = 1 }
	Used internally to force PTR lookups to use a certain protocol scemantics, e.g. More...
Variables
const QueryType	DNS_QUERY_FORWARD = DNS_QUERY_A
const QueryType	DNS_QUERY_REVERSE = DNS_QUERY_PTR

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Typedef Documentation

typedef nspace::hash_map<irc::string, CachedQuery, nspace::hash<irc::string> > dnscache

DNS cache information. Holds IPs mapped to hostnames, and hostnames mapped to IPs. Definition at line 107 of file dns.h.

typedef std::pair<unsigned char*, std::string> DNSInfo

Information on a completed lookup, used internally. Definition at line 71 of file dns.h.

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Enumeration Type Documentation

enum ForceProtocol

Used internally to force PTR lookups to use a certain protocol scemantics, e.g. x.x.x.x.in-addr.arpa for v4, and *.ip6.arpa for v6. Enumerator: PROTOCOL_IPV4  PROTOCOL_IPV6  Definition at line 166 of file dns.h.

enum QueryType

Query and resource record types. Enumerator: DNS_QUERY_NONE  DNS_QUERY_A  DNS_QUERY_CNAME  DNS_QUERY_PTR  DNS_QUERY_AAAA  DNS_QUERY_PTR4  DNS_QUERY_PTR6  Definition at line 144 of file dns.h.

enum ResolverError

Error types that class Resolver can emit to its error method. Enumerator: RESOLVER_NOERROR  RESOLVER_NSDOWN  RESOLVER_NXDOMAIN  RESOLVER_NOTREADY  RESOLVER_BADIP  RESOLVER_TIMEOUT  RESLOVER_FORCEUNLOAD  Definition at line 115 of file dns.h.

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Variable Documentation

const QueryType DNS_QUERY_FORWARD = DNS_QUERY_A

Definition at line 159 of file dns.h.

const QueryType DNS_QUERY_REVERSE = DNS_QUERY_PTR

Definition at line 161 of file dns.h.