CFLib.org – Common Function Library Project

IsMulticastAddress(address)

Last updated December 19, 2001

author

Ben Forta

Version: 1 | Requires: CF5 | Library: NetLib

Description:
Checks to see if a specifid address (IP address or host name) is a multicast address (Class D). If the host name is invalid an exception will be throw, so <CFTRY>/<CFCATCH> should be used.

Return Values:
Returns a boolean.

Example:

<CFOUTPUT>
#IsMulticastAddress("#CGI.REMOTE_ADDR#")#
</CFOUTPUT>

Parameters:

Name Description Required
address The address to check. Yes

Full UDF Source:

/**
 * Checks to see if a specifid address (IP address or host name) is a multicast address (Class D).
 * 
 * @param address 	 The address to check. 
 * @return Returns a boolean. 
 * @author Ben Forta (ben@forta.com) 
 * @version 1, December 19, 2001 
 */
function IsMulticastAddress(address) {
   // Variables
   var iaclass="";
   var addr="";
   
   // Init class
   iaclass=CreateObject("java", "java.net.InetAddress");

   // Get address
   addr=iaclass.getByName(address);

   // Is Multicast (Class D)?
   return addr.isMulticastAddress();
}
blog comments powered by Disqus

Search CFLib.org


Latest Additions

Kevin Cotton added
date2ExcelDate
May 5, 2016

Raymond Camden added
CapFirst
April 25, 2016

Chris Wigginton added
loremIpsum
January 18, 2016

Gary Stanton added
calculateArrival...
November 19, 2015

Sebastiaan Naafs - van Dijk added
getDaysInQuarter
November 13, 2015

Created by Raymond Camden / Design by Justin Johnson