node-inet-xtoy

inet_ntop() and inet_pton() bindings for Node.js

Installation

npm install inet_xtoy

Example

const { inet_ntop, inet_pton } = require('inet_xtoy');

console.log(inet_pton('127.0.0.1'));
console.log(inet_pton('::1'));
console.log(inet_ntop(inet_pton('127.0.0.1')));
console.log(inet_ntop(inet_pton('::1')));

API

inet_ntop(buf) converts an IPv4 or IPv6 address buf from binary to text form.

buf is expected to be a 4 (IPv4) or 16 (IPv6) bytes long String or Buffer.

Returns the IP address as a string or throws an Error in case the call to inet_ntop(3) fails.

Throws TypeError when the number of arguments is not 1, when buf is neither String nor Buffer or when the length of buf is neither 4 nor 16.

inet_pton(ip) converts an IPv4 or IPv6 address buf from text to binary form.

ip is expected to be a string. The function returns null if ip is not a valid IP address.

Returns Buffer with the binary form of the given ip; the length of the buffer is either 4 or 16 bytes.

Throws TypeError when the number of arguments is not 1 or when ip is not a string.

Throws Error when a call to inet_pton(3) fails.