calcNetAddress(myIP, myNetMask)
Last updated May 12, 2003
Version: 1 | Requires: ColdFusion 5 | Library: NetLib
Description:
calculate a network address from an IP address and a (sub)Netmask. Does not validate either input parameter.
Return Values:
Returns an IP address (string).
Example:
#calcNetAddress('217.136.252.232','255.255.255.197')#
</cfoutput>
Parameters:
| Name | Description | Required |
|---|---|---|
| myIP | IP Address. | Yes |
| myNetMask | Netmask. | Yes |
Full UDF Source:
<cfscript>
/**
* calculate a network address from an IP address and a (sub)Netmask.
*
* @param myIP IP Address. (Required)
* @param myNetMask Netmask. (Required)
* @return Returns an IP address (string).
* @author Tanguy Rademakers (t@newmediatwins.net)
* @version 1, May 12, 2003
*/
function calcNetAddress (myIP, myNetMask) {
var NetAddress = "";
var i = 1;
for (i = 1; i lte 4; i = i + 1) {
NetAddress = ListAppend(NetAddress, BitAnd(ListGetAt(myIP,i,'.'),ListGetAt(myNetMask,i,'.')) ,'.');
}
return NetAddress;
}
</cfscript>
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