CFLib.org – Common Function Library Project

GetHostAddress(host)

Last updated January 12, 2012

author

Ben Forta

Version: 1 | Requires: CF5 | Library: NetLib

Description:
Performs a DNS lookup. Provide a host name, it'll return an IP address. If the host name is invalid an exception will be throw, so <CFTRY>/<CFCATCH> should be used.

Return Values:
Returns an IP address.

Example:

<cfset url1 = "macromedia.com">
<cfset url2 = "microsoft.com">
<cfoutput>
Host address for #url1# is #GetHostAddress(url1)#<br>
Host address for #url2# is #GetHostAddress(url2)#<br>
</cfoutput>

Parameters:

Name Description Required
host The host name to lookup. Yes

Full UDF Source:

/**
 * Performs a DNS lookup.
 * 
 * @param host 	 The host name to lookup. (Required)
 * @return Returns an IP address. 
 * @author Ben Forta (ben@forta.com) 
 * @version 1, January 12, 2012 
 */
function GetHostAddress(host) {
   // Variables
   var iaclass="";
   var addr="";
   
   // Init class
   iaclass=CreateObject("java", "java.net.InetAddress");

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

   // Return the address	
   return addr.getHostAddress();
}
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