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macAddress.ts
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33 lines (28 loc) · 1.01 KB
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { networkInterfaces } from 'os';
const invalidMacAddresses = new Set([
'00:00:00:00:00:00',
'ff:ff:ff:ff:ff:ff',
'ac:de:48:00:11:22'
]);
function validateMacAddress(candidate: string): boolean {
const tempCandidate = candidate.replace(/\-/g, ':').toLowerCase();
return !invalidMacAddresses.has(tempCandidate);
}
export function getMac(): string {
const ifaces = networkInterfaces();
for (const name in ifaces) {
const networkInterface = ifaces[name];
if (networkInterface) {
for (const { mac } of networkInterface) {
if (validateMacAddress(mac)) {
return mac;
}
}
}
}
throw new Error('Unable to retrieve mac address (unexpected format)');
}