Detailed Description

A DNS resolver object. Wraps the query logic & networking. Can be instantiated with options and your network stack of choice, though for "normal" non-test querying, you are probably better of with the global calls further down.

#include <seastar/net/dns.hh>

Classes
struct	options

Public Types
enum class	srv_proto { tcp , udp }

using	srv_records = std::vector< srv_record >

Public Member Functions
	dns_resolver (dns_resolver &&) noexcept

	dns_resolver (const options &)

	dns_resolver (network_stack &, const options &={})

dns_resolver &	operator= (dns_resolver &&) noexcept

future< hostent >	get_host_by_name (const sstring &, opt_family={})

future< hostent >	get_host_by_addr (const inet_address &)

future< inet_address >	resolve_name (const sstring &, opt_family={})

future< sstring >	resolve_addr (const inet_address &)

future< srv_records >	get_srv_records (srv_proto proto, const sstring &service, const sstring &domain)

future	close ()

Class Documentation

◆ seastar::net::dns_resolver::options

struct seastar::net::dns_resolver::options

Class Members
optional< vector< sstring > >	domains
optional< vector< inet_address > >	servers
optional< uint16_t >	tcp_port
optional< milliseconds >	timeout
optional< uint16_t >	udp_port
optional< bool >	use_tcp_query

Member Function Documentation

◆ close()

future seastar::net::dns_resolver::close ( )

Shuts the object down. Great for tests.

◆ get_host_by_addr()

future<hostent> seastar::net::dns_resolver::get_host_by_addr ( const inet_address & )

Resolves an address to one or more addresses and aliases

◆ get_host_by_name()

future<hostent> seastar::net::dns_resolver::get_host_by_name	(	const sstring &	,
		opt_family	= `{}`
	)

Resolves a hostname to one or more addresses and aliases

◆ get_srv_records()

future<srv_records> seastar::net::dns_resolver::get_srv_records	(	srv_proto	proto,
		const sstring &	service,
		const sstring &	domain
	)

Resolve a service in given domain to one or more SRV records

◆ resolve_addr()

future<sstring> seastar::net::dns_resolver::resolve_addr ( const inet_address & )

Resolves an address to one (primary) name

◆ resolve_name()

future<inet_address> seastar::net::dns_resolver::resolve_name	(	const sstring &	,
		opt_family	= `{}`
	)

Resolves a hostname to one (primary) address

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

seastar/net/dns.hh