private void AuthenticationChange()
{
MyCatPacket packet = driver.Packet;
packet.Clear();
byte[] moreData = MoreData(null);
while (moreData != null && moreData.Length > 0)
{
packet.Clear();
packet.Write(moreData);
driver.SendPacket(packet);
packet = ReadPacket();
byte prefixByte = packet.Buffer[0];
if (prefixByte != 1)
{
return;
}
// a prefix of 0x01 means need more auth data
byte[] responseData = new byte[packet.Length - 1];
Array.Copy(packet.Buffer, 1, responseData, 0, responseData.Length);
moreData = MoreData(responseData);
}
// we get here if MoreData returned null but the last packet read was a more data packet
ReadPacket();
}
private void WritePassword(MyCatPacket packet)
{
bool secure = (Flags & ClientFlags.SECURE_CONNECTION) != 0;
object password = GetPassword();
if (password is string)
{
if (secure)
{
packet.WriteLenString((string)password);
}
else
{
packet.WriteString((string)password);
}
}
else if (password == null)
{
packet.WriteByte(0);
}
else if (password is byte[])
{
packet.Write(password as byte[]);
}
else
{
throw new MyCatException("Unexpected password format: " + password.GetType());
}
}
void IMyCatValue.WriteValue(MyCatPacket packet, bool binary, object val, int length)
{
double v = (val is double) ? (double)val : Convert.ToDouble(val);
if (binary)
{
packet.Write(BitConverter.GetBytes(v));
}
else
{
packet.WriteStringNoNull(v.ToString("R", CultureInfo.InvariantCulture));
}
}
void IMyCatValue.WriteValue(MyCatPacket packet, bool binary, object val, int length)
{
byte[] buffToWrite = (val as byte[]);
if (buffToWrite == null)
{
char[] valAsChar = (val as Char[]);
if (valAsChar != null)
{
buffToWrite = packet.Encoding.GetBytes(valAsChar);
}
else
{
string s = val.ToString();
if (length == 0)
{
length = s.Length;
}
else
{
s = s.Substring(0, length);
}
buffToWrite = packet.Encoding.GetBytes(s);
}
}
// we assume zero length means write all of the value
if (length == 0)
{
length = buffToWrite.Length;
}
if (buffToWrite == null)
{
throw new MyCatException("Only byte arrays and strings can be serialized by MyCatBinary");
}
if (binary)
{
packet.WriteLength(length);
packet.Write(buffToWrite, 0, length);
}
else
{
packet.WriteStringNoNull("X");
packet.WriteStringNoNull("\'");
packet.WriteStringNoNull(ToHexString(buffToWrite));
packet.WriteStringNoNull("\'");
}
}
private void WriteOldGuid(MyCatPacket packet, Guid guid, bool binary)
{
byte[] bytes = guid.ToByteArray();
if (binary)
{
packet.WriteLength(bytes.Length);
packet.Write(bytes);
}
else
{
packet.WriteStringNoNull("_binary ");
packet.WriteByte((byte)'\'');
EscapeByteArray(bytes, bytes.Length, packet);
packet.WriteByte((byte)'\'');
}
}
