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MUSHclient scripting

Description of MUSHclient world function: world.GetHostAddress


Name GetHostAddress
Type Method
Summary Returns a list of IP addresses that correspond to a host name on the Internet
Prototype VARIANT GetHostAddress(BSTR HostName);

View list of data type meanings

Description

Returns a variant array which is a list of all the TCP/IP addresses which correspond to a given IP address, using DNS (Domain Name Server).

Warning - because this function has to connect to a DNS server and await a response it may take some time to execute, perhaps 20 seconds or more.

It should not be used in a script where speed is the essence, or which is executed frequently. If you need to know the answer multiple times you should "cache" the result for future use.

The intended purpose is to relate an address in the chat system (eg. during the connection phase) to a domain name.

The reason an array is returned is because a single name might have multiple hosts (eg. Microsoft, Netscape) so a list of all of them is returned.


Note: Available in version 3.39 onwards.


VBscript example
For Each ip In GetHostAddress ("www.netscape.com")
  Note ip
Next
Jscript example
iplist = new VBArray(world.GetHostAddress ("www.netscape.com")).toArray();

if (iplist)  // if not empty
 for (i = 0; i < iplist.length; i++)
   Note (iplist [i]);
PerlScript example
foreach $item (Win32::OLE::in ($world->GetHostAddress ("www.netscape.com")))
 {
 Note ($item);
 }
Python example
iplist = world.GetHostAddress ("www.netscape.com")
if (iplist ):
  for ip in iplist : world.Note (ip)
Lua example
for k, v in pairs (GetHostAddress ("www.netscape.com")) do 
  Note (v) 
end
Returns If there were no addresses returned then the return value is empty. Use "IsEmpty" to test for this possibility.

Otherwise, it returns a variant array containing the IP addresses for this domain name. Use "ubound" to find the number of addresses in the list.
Introduced in version 3.39

See also ...

Function Description
GetHostName Returns the host name that corresponds to an IP address on the Internet

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