function lookupService
Usage in Deno
```typescript import { lookupService } from "node:node__dns.d.ts"; ```
lookupService(address: string,port: number,callback: (err: ErrnoException | null,hostname: string,service: string,) => void,): void
Resolves the given `address` and `port` into a host name and service using
the operating system's underlying `getnameinfo` implementation.
If `address` is not a valid IP address, a `TypeError` will be thrown.
The `port` will be coerced to a number. If it is not a legal port, a `TypeError` will be thrown.
On an error, `err` is an [`Error`](https://nodejs.org/docs/latest-v22.x/api/errors.html#class-error) object,
where `err.code` is the error code.
```js
import dns from 'node:dns';
dns.lookupService('127.0.0.1', 22, (err, hostname, service) => {
console.log(hostname, service);
// Prints: localhost ssh
});
```
If this method is invoked as its [util.promisify()](https://nodejs.org/docs/latest-v22.x/api/util.html#utilpromisifyoriginal) ed
version, it returns a `Promise` for an `Object` with `hostname` and `service` properties.
void