dpp::dns_cache_entry Struct Reference

Represents a cached DNS result. Used by the ssl_connection class to store cached copies of dns lookups. More...

#include <dns.h>

Collaboration diagram for dpp::dns_cache_entry:

Public Member Functions
const address_t	get_connecting_address (uint16_t port) const
	Get the address_t that corresponds to this cache entry for use when connecting with ::connect().
socket	make_connecting_socket () const
	Allocate a socket file descriptor for the given dns address.
int	size () const
	Get address length.

Public Attributes
addrinfo	addr
	Resolved address metadata.
time_t	expire_timestamp
	Time at which this cache entry is invalidated.
std::string	resolved_addr
	Resolved address as string. The metadata is needed to know what type of address it is. Do not do silly stuff like just looking to see if '.' is in it!

Detailed Description

Represents a cached DNS result. Used by the ssl_connection class to store cached copies of dns lookups.

Member Function Documentation

get_connecting_address()

const address_t dpp::dns_cache_entry::get_connecting_address ( uint16_t port ) const

nodiscard

Get the address_t that corresponds to this cache entry for use when connecting with ::connect().

Parameters

port	Port number to connect to

Returns

address_t prefilled with the IP and port number

make_connecting_socket()

socket dpp::dns_cache_entry::make_connecting_socket ( ) const

nodiscard

Allocate a socket file descriptor for the given dns address.

Returns

File descriptor ready for calling connect(), or INVALID_SOCKET on failure.

size()

int dpp::dns_cache_entry::size ( ) const

nodiscard

Get address length.

Returns

address length

Member Data Documentation

addr

addrinfo dpp::dns_cache_entry::addr

Resolved address metadata.

expire_timestamp

time_t dpp::dns_cache_entry::expire_timestamp

Time at which this cache entry is invalidated.

resolved_addr

std::string dpp::dns_cache_entry::resolved_addr

Resolved address as string. The metadata is needed to know what type of address it is. Do not do silly stuff like just looking to see if '.' is in it!