static async Task Main(string[] args)
{
bool success;
int port = 0;
switch (args.Length)
{
case 1:
success = int.TryParse(args[0], out port);
if (!success || port < 0 || port > 65535)
{
Console.WriteLine("Invalid port");
}
var server = new Server(port);
await server.RunAsync();
break;
case 2:
success = int.TryParse(args[1], out port);
if (!success || port < 0 || port > 65535)
{
Console.WriteLine("Invalid port");
}
var client = new Client(args[0], port);
await client.RunAsync();
break;
default:
break;
}
}