Function getInterfaceMAC

index.js:241–255

* Returns currently-set MAC address of given interface. This is distinct from the * interface's hardware MAC address. * @return {string}

(device)

 * @return {string}
 */
function getInterfaceMAC (device) {
  if (process.platform === 'darwin' || process.platform === 'linux') {
    let output
    try {
      output = cp.execSync(quote(['ifconfig', device]), { stdio: 'pipe' }).toString()
    } catch (err) {
      return null
    }

    const address = MAC_ADDRESS_RE.exec(output)
    return address && normalize(address[0])
  } else if (process.platform === 'win32') {
    console.error('No windows support for this method yet - PR welcome!')
  }
}

/**
 * Sets the mac address for given `device` to `mac`.