From c5b10e28b358308d8349b940af09f64368172f2e Mon Sep 17 00:00:00 2001 From: Santo Cariotti Date: Tue, 8 Apr 2025 12:13:50 +0200 Subject: Remove relay package --- network/ip.go | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 network/ip.go (limited to 'network/ip.go') diff --git a/network/ip.go b/network/ip.go new file mode 100644 index 0000000..0c6451e --- /dev/null +++ b/network/ip.go @@ -0,0 +1,33 @@ +package network + +import ( + "fmt" + "log/slog" + "math/rand" + "net" +) + +func GetOutboundIP() net.IP { + conn, err := net.Dial("udp", "8.8.8.8:80") + if err != nil { + slog.Error("err", err) + } + defer conn.Close() + + localAddr := conn.LocalAddr().(*net.UDPAddr) + + return localAddr.IP +} + +func GetRandomAvailablePort() (int, error) { + for i := 0; i < 100; i += 1 { + port := rand.Intn(65535-1024) + 1024 + addr := fmt.Sprintf(":%d", port) + ln, err := net.Listen("tcp", addr) + if err == nil { + defer ln.Close() + return port, nil + } + } + return 0, fmt.Errorf("failed to find an available port after multiple attempts") +} -- cgit v1.2.3-18-g5258