IP Util Functions Library

A library of useful functions related to IP (v4 and v6).

Installation

# Using npm
$ npm install --save ip-utils
# or Using yarn
$ yarn install --save ip-utils

Browser
// Import the Library
import * as ip from 'ip-util';
// Use any of the contained methods
ip.validIp('1.1.1.1');  // True

// Alternatively - import functions selectively
import { validIp } from 'ip-util'
validIp('1.1.1.1'); // True

NodeJS
// Import the Library
const ip = require('ip-util');
// Use any of the contained methods
ip.validIp('1.1.1.1'); // True

Usage

// IP Object
ip('1.1.1.1')
// Can be chained with
ip('1.1.1.1').isValid() // True
ip('1.1.1.1').isReserved() // False
ip('1.1.1.1').isPrivate() // False
ip('1.1.1.1').getOctet(1) // '1'
ip('1.1.1.1').getOctetArray() // ['1', '1', '1', '1']
ip('1.1.1.1').containedBy('1.2.3.4/8') // True

// Subnet Object
subnet('192.168.1.1/24')
// Can be chained with
subnet('192.168.1.1/24').networkAddress() // '192.168.1.0
subnet('192.168.1.1/24').broadcastAddress() // '192.168.1.255
subnet('192.168.1.1/24').firstHost() // '192.168.1.1
subnet('192.168.1.1/24').lastHost() // '192.168.1.254
subnet('192.168.1.1/24').mask() // '255.255.255.0
subnet('192.168.1.1/24').contains('192.168.1.143') // True
subnet('192.168.1.1/24').info()
/* 
{
  networkAddress: '192.168.1.0',
  broadcastAddress: '192.168.1.255',
  numberHosts: 254,
  inclusiveNumberHosts: 256,
  firstHostAddress: '192.168.1.1',
  lastHostAddress: '192.168.1.254',
  mask: '255.255.255.0',
  cidrMask: 24
 }
 */


// All individual Functions
isValidIp('54.34.2.12') // True
isValidIpv4('12.21.2.1') // True
isValidIpv6('fe80:0:0:0:204:61ff:fe9d:f156') // True
toLong('192.168.1.1') //3232235777
fromLong(3232235777) // 192.168.1.1
toString(3232235777) // As Above (deprecated)
isPrivate('2.3.4.5') // False
isReserved('192.168.2.1') // True
getOctetArray('50.11.12.13') // ['50', '11', '12', '13']
getOctet('50.11.12.13', 2) // '11'
cidrInfo('192.168.1.1/24') 
/* 
{
  networkAddress: '192.168.1.0',
  broadcastAddress: '192.168.1.255',
  numberHosts: 254,
  inclusiveNumberHosts: 256,
  firstHostAddress: '192.168.1.1',
  lastHostAddress: '192.168.1.254',
  mask: '255.255.255.0',
  cidrMask: 24
 }
 */
subnetInfo('192.168.1.1', '255.255.255.0') // As above
broadcastAddress('12.13.14.150/25') // '12.13.14.255'
networkAddress('12.13.14.150/25') // '12.13.14.128'
firstHost('12.13.14.150/25') // '12.13.14.129'
lastHost('12.13.14.150/25') // '12.13.14.254'
numberHosts('12.13.14.150/25') // 126
mask('12.13.14.150/25') // '255.255.255.128'
maskToCidr('255.255.255.0') // '24'
cidrToMask('43.23.2.65/27') // 27
contains('192.168.1.0/25', '192.168.1.50') // True

Contributing

Any and contributions are very welcome - be it:

• features that you implement yourself and then PR back.
• Ideas/Requests for new features.
• Suggestions for improvements.

New Functions can be written in src directory and then added as export in src/index.ts Corresponding unit tests can be written in spec directory

Commit Format

The project uses commitizen to standardise commits in format: <type>(<scope>): <subject>

Workflow is as follows:

1. Mark issue your working with label - Status:In Progress
2. Implement fix/feature
3. Submit PR to develop branch
4. PR will be reviewed/merged
5. Upon milestones develop will be merged to master
6. Master commits spawn a CI job to deploy new version to npm

License

ip-utils is released under the MIT license