ip::basic_resolver::query

The query type.

typedef basic_resolver_query< InternetProtocol > query;

Name	Description
flags	A bitmask type (C++ Std [lib.bitmask.types]).
protocol_type	The protocol type associated with the endpoint query.

Name	Description
basic_resolver_query	Construct with specified service name for any protocol. Construct with specified service name for a given protocol. Construct with specified host name and service name for any protocol. Construct with specified host name and service name for a given protocol.
hints	Get the hints associated with the query.
host_name	Get the host name associated with the query.
service_name	Get the service name associated with the query.

Name	Description
address_configured	Only return IPv4 addresses if a non-loopback IPv4 address is configured for the system. Only return IPv6 addresses if a non-loopback IPv6 address is configured for the system.
all_matching	If used with v4_mapped, return all matching IPv6 and IPv4 addresses.
canonical_name	Determine the canonical name of the host specified in the query.
numeric_host	Host name should be treated as a numeric string defining an IPv4 or IPv6 address and no name resolution should be attempted.
numeric_service	Service name should be treated as a numeric string defining a port number and no name resolution should be attempted.
passive	Indicate that returned endpoint is intended for use as a locally bound socket endpoint.
v4_mapped	If the query protocol family is specified as IPv6, return IPv4-mapped IPv6 addresses on finding no IPv6 addresses.

The ip::basic_resolver_query class template describes a query that can be passed to a resolver.

Distinct objects: Safe.

Shared objects: Unsafe.

Header: boost/asio/ip/basic_resolver.hpp

Convenience header: boost/asio.hpp

Boost C++ Libraries