CFLib.org – Common Function Library Project

IPDottedDecimal2IPAddress(ipValue)

Last updated September 27, 2002

author

Jonathan Pickard

Version: 1 | Requires: CF5 | Library: NetLib

Description:
Use IPDottedDecimal2IPAddress to convert an IP dotted decimal value to an IP address string. Storing decimal values in a database and making comparisons with them is more efficient than using IP address strings.

Return Values:
Returns a string.

Example:

<cfoutput>
#IPDottedDecimal2IPAddress( -1062731769)#
</cfoutput>

Parameters:

Name Description Required
ipValue Dotted decimal value of IP address. Yes

Full UDF Source:

/**
 * Converts a 32-bit dotted decimal IP number to an IP address.
 * 
 * @param ipValue 	 Dotted decimal value of IP address. (Required)
 * @return Returns a string. 
 * @author Jonathan Pickard (j_pickard@hotmail.com) 
 * @version 1, September 27, 2002 
 */
function IPDottedDecimal2IPAddress( ipvalue ) {
	var ipAddress = "";
	var lBitMasks = "24,16,8,0";
	var i = 1;

	for ( ; i LTE 4; i = i + 1 )
	{
		ipAddress = ipAddress & "." & BitMaskRead( ipvalue, ListGetAt( lBitMasks, i ), 8 );
	}
	ipAddress = Right( ipAddress, Len( ipAddress ) - 1 );

	return ipAddress;
}
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