GetHostAddress
Script function

world.GetHostAddress

DOC_scripting Read about scripting

Type

Method

Summary

Returns a list of IP addresses that correspond to a host name on the Internet

Prototype

VARIANT GetHostAddress(BSTR HostName);

DOC_data_types 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.

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


Return value

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.



See Also ...

Topic

DOC_info Information

Functions

FNC_Debug Debug (Displays debugging information about the world)
FNC_EchoInput EchoInput (A flag to indicate whether we are echoing command input to the output window)
FNC_GetConnectDuration GetConnectDuration (Returns the number of seconds this world has been connected.)
FNC_GetEntity GetEntity (Retrieves the value of an MXP server-defined entity)
FNC_GetHostName GetHostName (Returns the host name that corresponds to an IP address on the Internet)
FNC_GetInfo GetInfo (Gets information about the current world)
FNC_GetInternalCommandsList GetInternalCommandsList (Returns a list of the internal MUSHclient command names)
FNC_GetLineCount GetLineCount (Gets count of lines received)
FNC_GetLineInfo GetLineInfo (Gets details about a specified line in the output window)
FNC_GetLinesInBufferCount GetLinesInBufferCount (Returns the number of lines in the output window)
FNC_GetMainWindowPosition GetMainWindowPosition (Returns the position and size of the main MUSHclient window)
FNC_GetNotepadWindowPosition GetNotepadWindowPosition (Returns the position and size of the specified notepad window)
FNC_GetNotes GetNotes (Gets the world's notes)
FNC_GetQueue GetQueue (Returns a variant array which is a list of queued commands)
FNC_GetReceivedBytes GetReceivedBytes (Returns the number of bytes received from the world)
FNC_GetRecentLines GetRecentLines (Assembles a block of text from recent MUD output)
FNC_GetSelectionEndColumn GetSelectionEndColumn (Returns the endling column of the selection in the output window)
FNC_GetSelectionEndLine GetSelectionEndLine (Returns the last line of the selection in the output window)
FNC_GetSelectionStartColumn GetSelectionStartColumn (Returns the starting column of the selection in the output window)
FNC_GetSelectionStartLine GetSelectionStartLine (Returns the starting line of the selection in the output window)
FNC_GetSentBytes GetSentBytes (Returns the number of bytes sent to the world)
FNC_GetStyleInfo GetStyleInfo (Gets details about a specified style run for a specified line in the output window)
FNC_GetSysColor GetSysColor (Gets the colour of various windows items)
FNC_GetSystemMetrics GetSystemMetrics (Returns selected system information from Windows)
FNC_GetWorldID GetWorldID (Returns the 24-character ID of the current world)
FNC_GetWorldWindowPosition GetWorldWindowPosition (Returns the position and size of the current world window)
FNC_GetWorldWindowPositionX GetWorldWindowPositionX (Returns the position and size of a specific world window)
FNC_GetXMLEntity GetXMLEntity (Retrieves the value of a standard entity)
FNC_IsConnected IsConnected (Tests to see if the world is connected to the MUD server)
FNC_SetChanged SetChanged (Sets or clears the "document has changed" flag)
FNC_SetEntity SetEntity (Sets the value of an MXP entity)
FNC_UdpPortList UdpPortList (Returns an array of all the UDP ports in use by this world)
FNC_Version Version (Gets the MUSHclient version string.)
FNC_WorldAddress WorldAddress (Returns the TCP/IP address of the current world.)
FNC_WorldName WorldName (Gets the world's name)
FNC_WorldPort WorldPort (Returns the port number of the current world.)

(Help topic: function=GetHostAddress)

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