41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
import dgram from "node:dgram"
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export function createWolPacket(mac) {
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const parts = mac.split(/[:-]/);
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if (parts.length !== 6) throw new Error("Invalid MAC address")
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const hex = parts.map(p => {
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const n = parseInt(p, 16);
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if (isNaN(n)) throw new Error("Invalid MAC address");
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return n;
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});
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const packet = Buffer.alloc(102);
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// Fill the first 6 bytes with 0xFF
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packet.fill(0xFF, 0, 6);
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// Repeat the MAC address 16 times
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for(let i = 0; i < 16; i++) {
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hex.forEach((byte, index) => {
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packet[6 + (i * 6) + index] = byte;
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});
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}
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return packet;
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}
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export async function sendWolPacket(mac, broadcast = "255.255.255.255", port = 9) {
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const packet = createWolPacket(mac);
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const socket = dgram.createSocket("udp4");
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await new Promise((resolve, reject) => {
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socket.once("error", reject);
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socket.bind(() => {
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socket.setBroadcast(true);
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socket.send(packet, port, broadcast, err => {
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socket.close();
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if (err) reject(err);
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else resolve();
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});
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});
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});
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} |