parsing test

output

<Buffer ff ff ff ff ff ff a0 f6 fd 8a e9 1a 08 00 03>
{ h_dest: [ 255, 255, 255, 255, 255, 255 ],
  h_source: [ 160, 246, 253, 138, 233, 26 ],
  h_proto: 2048 }

package.json

{
  "name": "parsing-test",
  "version": "1.0.0",
  "description": "Dummy test of binary-parser and schemapack",
  "main": "serializer.js",
  "dependencies": {
    "binary-parser": "^1.1.5",
    "schemapack": "^1.4.2"
  },
  "devDependencies": {},
  "scripts": {
    "test": "node serializer.js > output"
  },
  "repository": {
    "type": "git",
    "url": "git+https://gist.github.com/e3796e7373a1ce1ac5d441a642b4ea33.git"
  },
  "author": "Ravi Kumar Prasad",
  "license": "MIT",
  "bugs": {
    "url": "https://gist.github.com/e3796e7373a1ce1ac5d441a642b4ea33"
  },
  "homepage": "https://gist.github.com/e3796e7373a1ce1ac5d441a642b4ea33"
}

serializer.js

var bp = require('binary-parser');
var Parser = bp.Parser;

// schemapack
var sp = require('schemapack');
var ethhdr_e = sp.build([
    { h_dest:{0:'uint8',1:'uint8',2:'uint8',3:'uint8',4:'uint8',5:'uint8'} },
    { h_source:{0:'uint8',1:'uint8',2:'uint8',3:'uint8',4:'uint8',5:'uint8'} },
    { h_proto : 'uint16' },
    { pad: 'string' }
]);

var eth = [
    { h_dest : [ 255, 255, 255, 255, 255, 255 ] },
    { h_source : [ 160, 246, 253, 138, 233, 26 ] },
    { h_proto : 2048 }
];

// encode
var schbuf = ethhdr_e.encode(eth);



// Parsing
var ethhdr = new Parser()
    .array('h_dest',{
        type: 'uint8',
        length: 6
    })
    .array('h_source',{
        type: 'uint8',
        length: 6
    })
    .int16be('h_proto');


console.log(schbuf);
console.log(ethhdr.parse(schbuf));