Projekt

Obecné

Profil

Stáhnout (2.73 KB) Statistiky
| Větev: | Revize:
1
# IP  
2
[![](https://badge.fury.io/js/ip.svg)](https://www.npmjs.com/package/ip)  
3

    
4
IP address utilities for node.js
5

    
6
## Installation
7

    
8
###  npm
9
```shell
10
npm install ip
11
```
12

    
13
### git
14

    
15
```shell
16
git clone https://github.com/indutny/node-ip.git
17
```
18
  
19
## Usage
20
Get your ip address, compare ip addresses, validate ip addresses, etc.
21

    
22
```js
23
var ip = require('ip');
24

    
25
ip.address() // my ip address
26
ip.isEqual('::1', '::0:1'); // true
27
ip.toBuffer('127.0.0.1') // Buffer([127, 0, 0, 1])
28
ip.toString(new Buffer([127, 0, 0, 1])) // 127.0.0.1
29
ip.fromPrefixLen(24) // 255.255.255.0
30
ip.mask('192.168.1.134', '255.255.255.0') // 192.168.1.0
31
ip.cidr('192.168.1.134/26') // 192.168.1.128
32
ip.not('255.255.255.0') // 0.0.0.255
33
ip.or('192.168.1.134', '0.0.0.255') // 192.168.1.255
34
ip.isPrivate('127.0.0.1') // true
35
ip.isV4Format('127.0.0.1'); // true
36
ip.isV6Format('::ffff:127.0.0.1'); // true
37

    
38
// operate on buffers in-place
39
var buf = new Buffer(128);
40
var offset = 64;
41
ip.toBuffer('127.0.0.1', buf, offset);  // [127, 0, 0, 1] at offset 64
42
ip.toString(buf, offset, 4);            // '127.0.0.1'
43

    
44
// subnet information
45
ip.subnet('192.168.1.134', '255.255.255.192')
46
// { networkAddress: '192.168.1.128',
47
//   firstAddress: '192.168.1.129',
48
//   lastAddress: '192.168.1.190',
49
//   broadcastAddress: '192.168.1.191',
50
//   subnetMask: '255.255.255.192',
51
//   subnetMaskLength: 26,
52
//   numHosts: 62,
53
//   length: 64,
54
//   contains: function(addr){...} }
55
ip.cidrSubnet('192.168.1.134/26')
56
// Same as previous.
57

    
58
// range checking
59
ip.cidrSubnet('192.168.1.134/26').contains('192.168.1.190') // true
60

    
61

    
62
// ipv4 long conversion
63
ip.toLong('127.0.0.1'); // 2130706433
64
ip.fromLong(2130706433); // '127.0.0.1'
65
```
66

    
67
### License
68

    
69
This software is licensed under the MIT License.
70

    
71
Copyright Fedor Indutny, 2012.
72

    
73
Permission is hereby granted, free of charge, to any person obtaining a
74
copy of this software and associated documentation files (the
75
"Software"), to deal in the Software without restriction, including
76
without limitation the rights to use, copy, modify, merge, publish,
77
distribute, sublicense, and/or sell copies of the Software, and to permit
78
persons to whom the Software is furnished to do so, subject to the
79
following conditions:
80

    
81
The above copyright notice and this permission notice shall be included
82
in all copies or substantial portions of the Software.
83

    
84
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
85
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
86
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
87
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
88
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
89
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
90
USE OR OTHER DEALINGS IN THE SOFTWARE.
(5-5/6)