Skip to content

fix: use standard method to get random unused port #67

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
icota merged 1 commit into from
May 27, 2026
Merged

fix: use standard method to get random unused port #67

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 5 additions & 7 deletions lib/tor.dart
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@ import 'dart:async';
import 'dart:ffi';
import 'dart:io';
import 'dart:isolate';
import 'dart:math';

import 'package:ffi/ffi.dart';
import 'package:flutter/foundation.dart';
Expand Down Expand Up @@ -127,16 +126,15 @@ class Tor {
}

Future<int> _getRandomUnusedPort({List<int> excluded = const []}) async {
var random = Random.secure();
int potentialPort = 0;
int port = 0;

retry:
while (potentialPort <= 0 || excluded.contains(potentialPort)) {
potentialPort = random.nextInt(65535);
while (port == 0 || excluded.contains(port)) {
try {
var socket = await ServerSocket.bind("0.0.0.0", potentialPort);
var socket = await ServerSocket.bind("0.0.0.0", 0);
port = socket.port;
socket.close();
return potentialPort;
return port;
} catch (_) {
continue retry;
}
Expand Down
Loading