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Internet Direct (Indy)
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TIdStackWindows.HostByAddress Method
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Internet Direct (Indy)
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Resolves an IP address to its host name.
function HostByAddress(
const AAddress: string;
const AIPVersion: TIdIPVersion = ID_DEFAULT_IP_VERSION
): string; override;|
Parameters |
Description |
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AAddress |
IP address to resolve to a host name. |
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AIPVersion |
IP version for the request. Default value is ID_DEFAULT_IP_VERSION. |
string - Host name for the specified IP address.
HostByAddress is an overridden string function used to resolve the IP address in AAddress to a host name.
AIPVersion indicates the IP address format, and determines the processing performed to resolve the IP address.
When AIPVerstion contains Id_IPv4, the value in AAddress is converted using inet_addr and passed to GetHostByAddr. CHekForSocketError is called to handle error responses.
When AIPVerstion contains Id_IPv6, getaddrinfo is called using AAddress to resolve the IP Address to a canonical name. CheckSocketError is called to handle error responses. If IdIPv6Available indicates that IPv6 addresses are not supported, then an EIdIPv6Unavailable exception is raised.
HostByAddress calls IPVersionUnsupported when AIPVersion contains a value other than Id_IPv4 or Id_IPv6.
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Internet Direct (Indy) version 10.1.5
Copyright © 1993-2006, Chad Z. Hower (aka Kudzu) and the Indy Pit Crew. All rights reserved. Website http://www.indyproject.org. Post feedback to the Indy Documentation newsgroup. |
Parameters