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network-byte-order

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htonl, htons, ntohl, ntohs - convert values between host and network byte order.

github.com/mattcg/network-byte-order

mattcg/network-byte-order

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# JavaScript implementation of htonl, htons, ntohl, ntohs # [![Build Status](https://travis-ci.org/mattcg/network-byte-order.png?branch=master)](https://travis-ci.org/mattcg/network-byte-order) [![Coverage Status](https://coveralls.io/repos/mattcg/network-byte-order/badge.png)](https://coveralls.io/r/mattcg/network-byte-order) These routines are used for converting values between host and [network byte order](http://en.wikipedia.org/wiki/Endianness#Endianness_in_networking). Derived from [an implementation](http://blog.couchbase.com/starting-membase-nodejs) by Membase, Inc. ## Usage ## ### htonl(b, i, v) ### The `htonl()` function converts the given unsigned 32-bit (long) integer from host byte order to network byte order (Little-Endian to Big-Endian). `b` is an [`Array`](https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array) of octets or a Node.JS [`Buffer`](http://nodejs.org/api/buffer.html). `i` is the zero-based index at which to write into `b`. `v` is the value to convert. ### htons(b, i, v) ### The `htons()` function converts the given unsigned 16-bit (short) integer from host byte order to network byte order (Little-Endian to Big-Endian). `b` is an [`Array`](https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array) of octets or a Node.JS [`Buffer`](http://nodejs.org/api/buffer.html). `i` is the zero-based index at which to write into `b`. `v` is the value to convert. ### ntohl(b, i) ### The `ntohl()` function converts the unsigned 32-bit (long) integer from network byte order to host byte order (Big-Endian to Little-Endian). `b` is an [`Array`](https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array) of octets or a Node.JS [`Buffer`](http://nodejs.org/api/buffer.html) to read the value from. `i` is the zero-based index at which to read from `b`. ### ntohlStr(s, i) ### `s` is a `string` to the read value from. `i` is the zero-based index at which to read from `s`. ### ntohs(b, i) ### The `ntohs()` function converts the unsigned 16-bit (short) integer from network byte order to host byte order (Big-Endian to Little-Endian). `b` is an [`Array`](https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array) of octets or a Node.JS [`Buffer`](http://nodejs.org/api/buffer.html) to read the value from. `i` is the zero-based index at which to read from `b`. ### ntohsStr(s, i) ### `s` is a `string` to the read value from. `i` is the zero-based index at which to read from `s`. ## License ## Licensed under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0).