@achingbrain/ssdp/dist/src/create-sockets.js

Yet another SSDP implementation for node.js

import { createSocket } from 'dgram';
export async function createSockets(ssdp, signal) {
    const sockets = [];
    await Promise.allSettled(ssdp.options.sockets.map(async (options) => {
        return new Promise((resolve, reject) => {
            const socket = createSocket({
                type: options.type,
                reuseAddr: true,
                signal
            }, (buf, info) => {
                ssdp.emit('transport:incoming-message', buf, info);
            });
            socket.bind(options.bind.port, options.bind.address);
            // @ts-expect-error .options is not a property of Socket
            socket.options = options;
            socket.on('error', (err) => {
                ssdp.emit('error', err);
            });
            socket.on('listening', () => {
                try {
                    socket.addMembership(options.broadcast.address, socket.address().address);
                    socket.setBroadcast(true);
                    socket.setMulticastTTL(options.maxHops);
                    sockets.push(socket);
                    resolve();
                }
                catch (error) {
                    error.message = `Adding membership ${options.broadcast.address} failed - ${error.message}`; // eslint-disable-line @typescript-eslint/restrict-template-expressions
                    reject(error);
                }
            });
        });
    }));
    if (sockets.length === 0) {
        throw new Error('Opening all sockets failed');
    }
    return sockets;
}
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