A DNS MX lookup client. More...

#include <gmxlookup.h>

Inheritance diagram for GFilters::MxLookup:

Collaboration diagram for GFilters::MxLookup:

Classes
struct	Config
	A configuration structure for GFilters::MxLookup. More...

Public Member Functions
	MxLookup (GNet::EventState, Config={})
	Constructor. More...

	MxLookup (GNet::EventState, Config, const std::vector< GNet::Address > &ns)
	Constructor taking a list of nameservers. More...

void	start (const GStore::MessageId &, const std::string &question_domain, unsigned int port)
	Starts the lookup. More...

G::Slot::Signal< GStore::MessageId, std::string, std::string > &	doneSignal () noexcept
	Returns a reference to the completion signal. More...

void	cancel ()
	Cancels the lookup so the doneSignal() is not emitted. More...

Static Public Member Functions
static bool	enabled ()
	Returns true if implemented. More...

Detailed Description

A DNS MX lookup client.

Each nameserver is queried in turn with a 'ns_timeout' interval. After the final nameserver has been queried there is a 'restart_timeout' before the sequence starts again. There is no overall timeout.

Definition at line 49 of file gmxlookup.h.

Constructor & Destructor Documentation

◆ MxLookup() [1/2]

GFilters::MxLookup::MxLookup	(	GNet::EventState	es,
		Config	config = `{}`
	)

explicit

Constructor.

Definition at line 48 of file gmxlookup.cpp.

◆ MxLookup() [2/2]

GFilters::MxLookup::MxLookup	(	GNet::EventState	es,
		Config	config,
		const std::vector< GNet::Address > &	ns
	)

explicit

Constructor taking a list of nameservers.

See also: GNet::nameservers()

Definition at line 54 of file gmxlookup.cpp.

Member Function Documentation

◆ cancel()

void GFilters::MxLookup::cancel ( )

Cancels the lookup so the doneSignal() is not emitted.

Definition at line 247 of file gmxlookup.cpp.

◆ doneSignal()

G::Slot::Signal< GStore::MessageId, std::string, std::string > & GFilters::MxLookup::doneSignal ( )

noexcept

Returns a reference to the completion signal.

The signal parameters are (1) the original message id, (2) the answer port-25 transport address (if successful), and (3) the error reason (if not).

Definition at line 304 of file gmxlookup.cpp.

◆ enabled()

bool GFilters::MxLookup::enabled ( )

static

Returns true if implemented.

Definition at line 42 of file gmxlookup.cpp.

◆ start()

void GFilters::MxLookup::start	(	const GStore::MessageId &	message_id,
		const std::string &	question_domain,
		unsigned int	port
	)

Starts the lookup.

Definition at line 89 of file gmxlookup.cpp.

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

/tmp/slackdce/slackrepo.HKsbdz/build_emailrelay/emailrelay-2.6/src/gfilters/gmxlookup.h
/tmp/slackdce/slackrepo.HKsbdz/build_emailrelay/emailrelay-2.6/src/gfilters/gmxlookup.cpp

Classes

Public Member Functions

Static Public Member Functions