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Function `std.socket.getAddressInfo`

Provides protocol-independent translation from host names to socket addresses. If advanced functionality is not required, consider using getAddress for compatibility with older systems.


						
				AddressInfo[] getAddressInfo(T...)
				(
				

				  in char[] node,
				

				  T options
				

				);

Returns

Array with one AddressInfo per socket address.

Throws

SocketOSException on failure, or SocketFeatureException if this functionality is not available on the current system.

Parameters

Name	Description
node	string containing host name or numeric address
options	optional additional parameters, identified by type: `string` - service name or port number `AddressInfoFlags` - option flags `AddressFamily` - address family to filter by `SocketType` - socket type to filter by `ProtocolType` - protocol to filter by

Example

// Roundtrip DNS resolution
auto results = getAddressInfo("www.digitalmars.com");
assert(results[0].address.toHostNameString() ==
    "digitalmars.com");

// Canonical name
results = getAddressInfo("www.digitalmars.com",
    AddressInfoFlags.CANONNAME);
assert(results[0].canonicalName == "digitalmars.com");

// IPv6 resolution
results = getAddressInfo("ipv6.google.com");
assert(results[0].family == AddressFamily.INET6);

// Multihomed resolution
results = getAddressInfo("google.com");
assert(results.length > 1);

// Parsing IPv4
results = getAddressInfo("127.0.0.1",
    AddressInfoFlags.NUMERICHOST);
assert(results.length && results[0].family ==
    AddressFamily.INET);

// Parsing IPv6
results = getAddressInfo("::1",
    AddressInfoFlags.NUMERICHOST);
assert(results.length && results[0].family ==
    AddressFamily.INET6);

Authors

Christopher E. Miller, David Nadlinger, Vladimir Panteleev

License

Boost License 1.0.