DNS Class Reference

#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 &host, const LogSink &logInstance)
static int	connect (const std::string &host, int port, const LogSink &logInstance)
static int	getSocket (const LogSink &logInstance)
static void	closeSocket (int fd, const LogSink &logInstance)

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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 61 of file dns.h.

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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 68 of file dns.h.

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Member Function Documentation

void closeSocket	(	int	fd,
		const LogSink &	logInstance
	)		[static]

Closes the given socket.

Parameters:

fd	The socket to close.
logInstance	A LogSink to use for logging.

Definition at line 454 of file dns.cpp.

int connect	(	const std::string &	host,
		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:

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

Returns:

A file descriptor for the established connection.

Definition at line 314 of file dns.cpp.

int connect	(	const std::string &	host,
		int	port,
		const LogSink &	logInstance
	)		[static]

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

Parameters:

host	The host/IP address 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 401 of file dns.cpp.

int getSocket

(

const LogSink &

logInstance

)

[static]

A convenience function that prepares and returnes a simple, unconnected TCP socket.

Parameters:

logInstance

A LogSink to use for logging.

Returns:

A TCP socket.

Definition at line 332 of file dns.cpp.

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

This function 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 198 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-client 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 90 of file dns.h.

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

• dns.h
• dns.cpp