DNS Class Reference

This class holds a number of static functions used for DNS related stuff. More...

#include <dns.h>

List of all members.

Public Types

typedef std::map< std::string,
int > HostMap

Static Public Member Functions

static HostMap resolve (const std::string &service, const std::string &proto, const std::string &domain, const LogSink &logInstance)

static HostMap resolve (const std::string &domain, const LogSink &logInstance)

static int connect (const std::string &domain, const LogSink &logInstance)

static int connect (const std::string &domain, unsigned short port, const LogSink &logInstance)

static int getSocket ()

static void closeSocket (int fd)

Detailed Description

This class holds a number of static functions used for DNS related stuff.

You should not need to use these functions directly.

Author:: Jakob Schroeter <js@camaya.net>

Since:: 0.3

Definition at line 55 of file dns.h.

Member Typedef Documentation

typedef std::map<std::string, int> HostMap

A list of strings (used for server addresses) and ints (used for port numbers).

Definition at line 62 of file dns.h.

Member Function Documentation

DNS::HostMap resolve	(	const std::string &	service,
		const std::string &	proto,
		const std::string &	domain,
		const LogSink &	logInstance
	)			`[static]`

This funtion resolves a service/protocol/domain tuple.

Parameters:

	service	The SRV service type.
	proto	The SRV protocol.
	domain	The domain to search for SRV records.
	logInstance	A LogSink to use for logging.

Returns:: A list of weighted hostname/port pairs from SRV records, or A records if no SRV records where found.

Definition at line 82 of file dns.cpp.

static HostMap resolve	(	const std::string &	domain,
		const LogSink &	logInstance
	)			`[inline, static]`

This is a convenience funtion which uses resolve() to resolve SRV records for a given domain, using a service of xmpp and a proto of tcp.

Parameters:

	domain	The domain to resolve SRV records for.
	logInstance	A LogSink to use for logging.

Returns:: A list of weighted hostname/port pairs from SRV records, or A records if no SRV records where found.

Definition at line 84 of file dns.h.

int connect	(	const std::string &	domain,
		const LogSink &	logInstance
	)			`[static]`

This is a convenience function which uses resolve() to get a list of hosts and connects to one of them.

Parameters:

	domain	The domain to resolve SRV records for.
	logInstance	A LogSink to use for logging.

Returns:: A file descriptor for the established connection.

Definition at line 210 of file dns.cpp.

int connect	(	const std::string &	domain,
		unsigned short	port,
		const LogSink &	logInstance
	)			`[static]`

This is a convenience function which uses connects to the given host and port. No SRV records are resolved. Use this function for special setups.

Parameters:

	domain	The domain to connect to.
	port	A custom port to connect to.
	logInstance	A LogSink to use for logging.

Returns:: A file descriptor for the established connection.

Definition at line 257 of file dns.cpp.

int getSocket ( ) [static]

Prepares and returnes a simple socket.

Returns:: A simple socket.

Definition at line 227 of file dns.cpp.

void closeSocket ( int fd ) [static]

Closes the given socket.

Parameters:

fd

The socket to close.

Definition at line 309 of file dns.cpp.

The documentation for this class was generated from the following files:


Public Types
typedef std::map< std::string, int >	HostMap
Static Public Member Functions
static HostMap	resolve (const std::string &service, const std::string &proto, const std::string &domain, const LogSink &logInstance)
static HostMap	resolve (const std::string &domain, const LogSink &logInstance)
static int	connect (const std::string &domain, const LogSink &logInstance)
static int	connect (const std::string &domain, unsigned short port, const LogSink &logInstance)
static int	getSocket ()
static void	closeSocket (int fd)