ip2num, ipv4 to number, mac to number, number to mac, num2ip

ip-mac-net.ts

function ipv42num(ipString: string) {
  const ipNumber = ipString.split('.');
  return ((((((+ipNumber[0]) * 256) + (+ipNumber[1])) * 256) + (+ipNumber[2])) * 256) + (+ipNumber[3]);
}

function num2ipv4(ipNumber: number) {
  let ipString = (ipNumber % 256).toString();
  for (let i = 3; i > 0; i--) {
    ipNumber = Math.floor(ipNumber / 256);
    ipString = ipNumber % 256 + '.' + ipString;
  }
  return ipString;
}

function mac2num(macNumber: number) {
  return String(1e12 + (macNumber)
    .toString(16)).slice(-12).match(/.{1,2}/g).join(':');
}

function num2mac(macString: string) {
  return parseInt(macString.split(':').join(''), 16);
}

function calcAlloc(data: number) {
  return Math.floor(Math.log2(data) / 4) + 1;
}