You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.7 KiB
Markdown
91 lines
2.7 KiB
Markdown
12 months ago
|
# IP
|
||
|
|
[](https://www.npmjs.com/package/ip)
|
||
|
|
|
||
|
|
IP address utilities for node.js
|
||
|
|
|
||
|
|
## Installation
|
||
|
|
|
||
|
|
### npm
|
||
|
|
```shell
|
||
|
|
npm install ip
|
||
|
|
```
|
||
|
|
|
||
|
|
### git
|
||
|
|
|
||
|
|
```shell
|
||
|
|
git clone https://github.com/indutny/node-ip.git
|
||
|
|
```
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
Get your ip address, compare ip addresses, validate ip addresses, etc.
|
||
|
|
|
||
|
|
```js
|
||
|
|
var ip = require('ip');
|
||
|
|
|
||
|
|
ip.address() // my ip address
|
||
|
|
ip.isEqual('::1', '::0:1'); // true
|
||
|
|
ip.toBuffer('127.0.0.1') // Buffer([127, 0, 0, 1])
|
||
|
|
ip.toString(new Buffer([127, 0, 0, 1])) // 127.0.0.1
|
||
|
|
ip.fromPrefixLen(24) // 255.255.255.0
|
||
|
|
ip.mask('192.168.1.134', '255.255.255.0') // 192.168.1.0
|
||
|
|
ip.cidr('192.168.1.134/26') // 192.168.1.128
|
||
|
|
ip.not('255.255.255.0') // 0.0.0.255
|
||
|
|
ip.or('192.168.1.134', '0.0.0.255') // 192.168.1.255
|
||
|
|
ip.isPrivate('127.0.0.1') // true
|
||
|
|
ip.isV4Format('127.0.0.1'); // true
|
||
|
|
ip.isV6Format('::ffff:127.0.0.1'); // true
|
||
|
|
|
||
|
|
// operate on buffers in-place
|
||
|
|
var buf = new Buffer(128);
|
||
|
|
var offset = 64;
|
||
|
|
ip.toBuffer('127.0.0.1', buf, offset); // [127, 0, 0, 1] at offset 64
|
||
|
|
ip.toString(buf, offset, 4); // '127.0.0.1'
|
||
|
|
|
||
|
|
// subnet information
|
||
|
|
ip.subnet('192.168.1.134', '255.255.255.192')
|
||
|
|
// { networkAddress: '192.168.1.128',
|
||
|
|
// firstAddress: '192.168.1.129',
|
||
|
|
// lastAddress: '192.168.1.190',
|
||
|
|
// broadcastAddress: '192.168.1.191',
|
||
|
|
// subnetMask: '255.255.255.192',
|
||
|
|
// subnetMaskLength: 26,
|
||
|
|
// numHosts: 62,
|
||
|
|
// length: 64,
|
||
|
|
// contains: function(addr){...} }
|
||
|
|
ip.cidrSubnet('192.168.1.134/26')
|
||
|
|
// Same as previous.
|
||
|
|
|
||
|
|
// range checking
|
||
|
|
ip.cidrSubnet('192.168.1.134/26').contains('192.168.1.190') // true
|
||
|
|
|
||
|
|
|
||
|
|
// ipv4 long conversion
|
||
|
|
ip.toLong('127.0.0.1'); // 2130706433
|
||
|
|
ip.fromLong(2130706433); // '127.0.0.1'
|
||
|
|
```
|
||
|
|
|
||
|
|
### License
|
||
|
|
|
||
|
|
This software is licensed under the MIT License.
|
||
|
|
|
||
|
|
Copyright Fedor Indutny, 2012.
|
||
|
|
|
||
|
|
Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
|
copy of this software and associated documentation files (the
|
||
|
|
"Software"), to deal in the Software without restriction, including
|
||
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
||
|
|
distribute, sublicense, and/or sell copies of the Software, and to permit
|
||
|
|
persons to whom the Software is furnished to do so, subject to the
|
||
|
|
following conditions:
|
||
|
|
|
||
|
|
The above copyright notice and this permission notice shall be included
|
||
|
|
in all copies or substantial portions of the Software.
|
||
|
|
|
||
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||
|
|
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
||
|
|
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
||
|
|
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
||
|
|
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
||
|
|
USE OR OTHER DEALINGS IN THE SOFTWARE.
|