public async ValueTask WriteAsync(ReadOnlyMemory <byte> buffer)
{
var packData = UdpPackData.Parse(buffer);
if (!_addressMap.TryGetValue(packData.Remote, out var endPoint))
{
if (IPAddress.TryParse(packData.Remote.Address, out var address))
{
endPoint = new IPEndPoint(address, packData.Remote.Port);
}
else
{
foreach (var addr in await Dns.GetHostAddressesAsync(packData.Remote.Address))
{
if (addr.AddressFamily == AddressFamily.InterNetwork)
{
address = addr;
break;
}
}
endPoint = new IPEndPoint(address, packData.Remote.Port);
}
_addressMap.TryAdd(packData.Remote, endPoint);
_endPointMap.TryAdd(endPoint, packData.Remote);
}
await _udp.SendAsync(packData.Data, packData.Data.Length, endPoint);
lastRemote = packData.Remote;
}
public static Socks5Request FormBytes(byte[] buffer)
{
var request = new Socks5Request
{
Version = buffer[0],
Command = buffer[1],
RSV = buffer[2],
};
request.Remote = SocksRemote.Parse(new Memory <byte>(buffer, 3, buffer.Length - 3), out var left);
return(request);
}
