bat-list-neighbours

#!/usr/bin/env node

const fs = require('fs')
const netIfaces = require('os').networkInterfaces()
const exec = require('child_process').execSync

var batIfaces = ["bat0"]
try {
  var c = JSON.parse(fs.readFileSync("./config.json")).bat_iface
  if (typeof c === "string") c = [c]
  if (c) batIfaces = c.map(b => b.replace(/[^A-Za-z0-9\-_\.]/g, ''))
} catch (ignored) {
}

var res = {}
for(const batIface of batIfaces) {
  var origs = exec("batctl meshif " + batIface + " originators").toString().trim()
  if (origs) {
    origs = origs.split("\n")
    origs.forEach((orig) => {
      var mac = orig.substring(3,20)
      if (orig.substring(39,56) != mac) return
      var lastSeen = parseFloat(orig.substring(21,29).trim())
      var tq = parseInt(orig.substring(34,37).trim())
      var iface = orig.split('[')[1].split(']')[0].trim()
      var mac2 = netIfaces[iface][0].mac
      if (!(mac2 in res)) res[mac2] = {"neighbours": {}}
      res[mac2].neighbours[mac] = {
        "tq": tq,
        "lastseen": lastSeen
      }
    })
  }
}

console.log(JSON.stringify(res))