arpping/src/macLookup.ts

Discover and search for internet-connected devices (locally) using ping and arp

const addresses: { [key: string]: string[] } = {
	"Apple": [
		"2:f:b5",
		"1c:36:bb",
		"8c:85:90",
		"8:66:98",
		"dc:2b:2a",
		"34:8:bc",
		"e0:ac:cb",
		"dc:a9:04",
		"dc:a9:4"
	],
	"RaspberryPi": [
		"b8:27:eb"
	],
	"ParticlePhoton": [
		"e0:4f:43"
	],
	"Sonos": [
		"94:9f:3e",
		"78:28:ca"
	],
	"Netgear": [
		"a0:40:a0"
	],
	"Roku": [
		"20:f5:43"
	]
}
const stringAddresses = JSON.stringify(addresses);

/**
* Cross references provided mac address with lookup table (incomplete)
* @param {String} mac
* @param {String} type
*
* @returns {String}
*/
export default function macLookup(mac: string, type?: string | undefined) {
	const leading = mac.split(':').slice(0, 3).join(':');

	if (type && addresses[ type ]) {
		if (addresses[ type ].includes(leading)) return type;
	}

	if (!stringAddresses.includes(leading)) return null;
	for (const vendor in addresses) {
		if (addresses[ vendor ].includes(leading)) return vendor;
	}
	return null;
}