Xray-core/testing/servers/tcp/port.go
2020-11-25 19:01:53 +08:00

17 lines
422 B
Go

package tcp
import (
"github.com/xtls/xray-core/v1/common"
"github.com/xtls/xray-core/v1/common/net"
)
// PickPort returns an unused TCP port in the system. The port returned is highly likely to be unused, but not guaranteed.
func PickPort() net.Port {
listener, err := net.Listen("tcp4", "127.0.0.1:0")
common.Must(err)
defer listener.Close()
addr := listener.Addr().(*net.TCPAddr)
return net.Port(addr.Port)
}