rangecalc

Find the CIDR range of a set of IPv4 addresses. Requires Node.js 8 or later.

Get it

Install with npm install rangecalc. Use it in your code with var rangecalc = require('rangecalc');.

A simple CLI program is included to demonstrate range calculation. Run with rangecalc.

Use it

• getCIDR: Calculate the CIDR range of two IP addresses.
• getInt: Calculate an integer representation of an IP address.
• sort: Sort an array of IP addresses.

More information on the functions available can be found here.

Improve it

Install the devDependencies with npm install. Run tests with npm test. Pull requests are more than welcome.

To do

• [ ] Show how many addresses are in a range
• [ ] Calculate IPv6 addresses

License

Copyright © 2017, 2018, 2019 Cody Logan

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

A copy of the GNU General Public License can be found in LICENSE and at http://www.gnu.org/licenses/.