Can I bind to a specific host? How is the host option passed through?

Question

RepoPilot · Accepted Answer

Yes, you can bind to a specific host. According to the README, the `getPort()` function accepts a `host` option in its options object.

From the README excerpt:

> ##### host
> 
> Type: `string`
> 
> The host on which port resolution should be performed. Can be either an IPv4 or IPv6 address.
> 
> By default, it checks availability on all local addresses defined in [OS network interfaces](https://nodejs.org/api/os.html#os_os_networkinterfaces). If this option is set, it will only check the given host.

So you would pass it like this:

```js
import getPort from 'get-port';

console.log(await getPort({host: '127.0.0.1'}));
```

Or with IPv6:

```js
console.log(await getPort({host: '::1'}));
```

However, the repository data provided only contains the README excerpt and doesn't include the actual implementation source code. To see exactly how the `host` option is passed through the internal logic and used during port resolution, you would need to examine the main implementation file directly (likely `index.js`, `index.ts`, or similar in the root or `src/` directory).

FOLLOW_UPS:
- How does the library check port availability internally?
- Can I combine host option with preferred ports?
- What's the difference between ipv6Only option behavior?