A simple module to test whether a given IPv4 address is within a particular CIDR range.
BSD-2-CLAUSE License
This is a simple node.js
module for determining whether an IPv4 address
occurs within a given CIDR range.
You should be able to install this module by executing:
$ npm install cidr_match
Failing that you can clone the repository, and load the code via:
require( "./cidr_match" );
//
// Use the node.js assert module to validate our code.
//
var c = require( "cidr_match" );
var assert = require('assert');
//
// Does an IP come from within the given range?
//
assert(c.cidr_match ("10.0.0.24", "10.0.0.0/24" ) );
assert(c.cidr_match ("10.0.0.240", "10.0.0.0/24" ) );
assert(c.cidr_match ("10.0.0.240", "10.0/16" ) );
We only consider IPv4 addresses, by desgin.
This code was abstracted from the blogspam.js repository.
Please consider this licensed under the two-clause BSD license, included in the file LICENSE.