* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd: (C) 2002-2007 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
#ifndef _DNS_H
#define _DNS_H
-#include <string>
-#include "inspircd_config.h"
-#include "base.h"
-#include "socketengine.h"
#include "socket.h"
-#include "hash_map.h"
#include "hashcomp.h"
-using namespace std;
-using irc::sockets::insp_aton;
-using irc::sockets::insp_ntoa;
-using irc::sockets::insp_sockaddr;
-using irc::sockets::insp_inaddr;
-
-class InspIRCd;
class Module;
/**
/** Cached item stored in the query cache.
*/
-class CoreExport CachedQuery
+class CoreExport CachedQuery : public classbase
{
public:
/** The cached result data, an IP or hostname
/** DNS cache information. Holds IPs mapped to hostnames, and hostnames mapped to IPs.
*/
-#ifndef WIN32
-typedef nspace::hash_map<irc::string, CachedQuery, nspace::hash<irc::string> > dnscache;
-#else
+#if defined(WINDOWS) && !defined(HASHMAP_DEPRECATED)
typedef nspace::hash_map<irc::string, CachedQuery, nspace::hash_compare<irc::string> > dnscache;
+#else
+typedef nspace::hash_map<irc::string, CachedQuery, nspace::hash<irc::string> > dnscache;
#endif
/**
RESOLVER_NOERROR = 0,
RESOLVER_NSDOWN = 1,
RESOLVER_NXDOMAIN = 2,
- RESOLVER_NOTREADY = 3,
- RESOLVER_BADIP = 4,
- RESOLVER_TIMEOUT = 5,
- RESLOVER_FORCEUNLOAD = 6
+ RESOLVER_BADIP = 3,
+ RESOLVER_TIMEOUT = 4,
+ RESOLVER_FORCEUNLOAD = 5
};
/**
*/
enum QueryType
{
- DNS_QUERY_NONE = 0, /* Uninitialized Query */
- DNS_QUERY_A = 1, /* 'A' record: an ipv4 address */
- DNS_QUERY_CNAME = 5, /* 'CNAME' record: An alias */
- DNS_QUERY_PTR = 12, /* 'PTR' record: a hostname */
- DNS_QUERY_AAAA = 28, /* 'AAAA' record: an ipv6 address */
-
- DNS_QUERY_PTR4 = 0xFFFD, /* Force 'PTR' to use IPV4 scemantics */
- DNS_QUERY_PTR6 = 0xFFFE /* Force 'PTR' to use IPV6 scemantics */
+ /** Uninitialized Query */
+ DNS_QUERY_NONE = 0,
+ /** 'A' record: an ipv4 address */
+ DNS_QUERY_A = 1,
+ /** 'CNAME' record: An alias */
+ DNS_QUERY_CNAME = 5,
+ /** 'PTR' record: a hostname */
+ DNS_QUERY_PTR = 12,
+ /** 'AAAA' record: an ipv6 address */
+ DNS_QUERY_AAAA = 28,
+
+ /** Force 'PTR' to use IPV4 scemantics */
+ DNS_QUERY_PTR4 = 0xFFFD,
+ /** Force 'PTR' to use IPV6 scemantics */
+ DNS_QUERY_PTR6 = 0xFFFE
};
-#ifdef IPV6
-const QueryType DNS_QUERY_FORWARD = DNS_QUERY_AAAA;
-#else
-const QueryType DNS_QUERY_FORWARD = DNS_QUERY_A;
-#endif
-const QueryType DNS_QUERY_REVERSE = DNS_QUERY_PTR;
/**
* 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.
*/
enum ForceProtocol
{
- PROTOCOL_IPV4 = 0, /* Forced to use ipv4 */
- PROTOCOL_IPV6 = 1 /* Forced to use ipv6 */
+ /** Forced to use ipv4 */
+ PROTOCOL_IPV4 = 0,
+ /** Forced to use ipv6 */
+ PROTOCOL_IPV6 = 1
};
/**
* Time left before cache expiry
*/
int time_left;
+
public:
/**
* Initiate DNS lookup. Your class should not attempt to delete or free these
* the object to go 'out of scope' and cause a segfault in the core if the result
* arrives at a later time.
* @param source The IP or hostname to resolve
- * @param qt The query type to perform. If you just want to perform a forward
- * or reverse lookup, and you don't care wether you get ipv4 or ipv6, then use
- * the constants DNS_QUERY_FORWARD and DNS_QUERY_REVERSE, which automatically
- * select from 'A' record or 'AAAA' record lookups. However, if you want to resolve
- * a specific record type, resolution of 'A', 'AAAA', 'PTR' and 'CNAME' records
+ * @param qt The query type to perform. Resolution of 'A', 'AAAA', 'PTR' and 'CNAME' records
* is supported. Use one of the QueryType enum values to initiate this type of
* lookup. Resolution of 'AAAA' ipv6 records is always supported, regardless of
* wether InspIRCd is built with ipv6 support.
- * If you attempt to resolve a 'PTR' record using DNS_QUERY_PTR, and InspIRCd is
- * built with ipv6 support, the 'PTR' record will be formatted to ipv6 specs,
- * e.g. x.x.x.x.x....ip6.arpa. otherwise it will be formatted to ipv4 specs,
- * e.g. x.x.x.x.in-addr.arpa. This translation is automatic.
- * To get around this automatic behaviour, you must use one of the values
- * DNS_QUERY_PTR4 or DNS_QUERY_PTR6 to force ipv4 or ipv6 behaviour on the lookup,
- * irrespective of what protocol InspIRCd has been built for.
+ * To look up reverse records, specify one of DNS_QUERY_PTR4 or DNS_QUERY_PTR6 depending
+ * on the type of address you are looking up.
* @param cached The constructor will set this boolean to true or false depending
* on whether the DNS lookup you are attempting is cached (and not expired) or not.
* If the value is cached, upon return this will be set to true, otherwise it will
* The default destructor does nothing.
*/
virtual ~Resolver();
+
/**
* When your lookup completes, this method will be called.
* @param result The resulting DNS lookup, either an IP address or a hostname.
* result, this is the number of seconds remaining before refresh/expiry.
* @param cached True if the result is a cached result, false if it was requested
* from the DNS server.
- * @param resultnum Result number, for records with multiple matching results.
- * Normally, you will only want to act on this when the result is 0.
*/
- virtual void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached, int resultnum = 0) = 0;
+ virtual void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached) = 0;
+
/**
* If an error occurs (such as NXDOMAIN, no domain name found) then this method
* will be called.
* @param errormessage The error text of the error that occured.
*/
virtual void OnError(ResolverError e, const std::string &errormessage);
+
/**
* Returns the id value of this class. This is primarily used by the core
* to determine where in various tables to place a pointer to your class, but it
* this method will return -1.
*/
int GetId();
+
/**
* Returns the creator module, or NULL
*/
Module* GetCreator();
+
/**
* If the result is a cached result, this triggers the objects
* OnLookupComplete. This is done because it is not safe to call
* Server address being used currently
*/
int socketfamily;
-#ifdef IPV6
+
+ /**
+ * IPV6 server address
+ */
in6_addr myserver6;
-#endif
+
+ /**
+ * IPV4 server address
+ */
in_addr myserver4;
/**
*/
int GetIP(const char* name);
- /**
- * Start the lookup of a hostname from an ip,
- * always using the protocol inspircd is built for,
- * e.g. use ipv6 reverse lookup when built for ipv6,
- * or ipv4 lookup when built for ipv4.
- */
- int GetName(const insp_inaddr* ip);
-
/**
* Start lookup of a hostname from an ip, but
* force a specific protocol to be used for the lookup
/**
* Fetch the result string (an ip or host)
* and/or an error message to go with it.
- * @param resultnum Result number to fetch
*/
- DNSResult GetResult(int resultnum);
+ DNSResult GetResult();
/**
* Handle a SocketEngine read event
projects / user / henk / code / inspircd.git / blobdiff