/// <summary>Unwraps a byte array.</summary>
/// <param name="bytes">The array containing the bytes to unwrap.</param>
/// <param name="off">The starting position at the array</param>
/// <param name="len">The number of bytes to unwrap</param>
/// <returns>byte[] unwrapped bytes</returns>
/// <exception cref="Javax.Security.Sasl.SaslException">if the bytes cannot be successfully unwrapped
/// </exception>
public virtual byte[] Unwrap(byte[] bytes, int off, int len)
{
if (saslClient != null)
{
return(saslClient.Unwrap(bytes, off, len));
}
else
{
return(saslServer.Unwrap(bytes, off, len));
}
}
/// <summary>
/// Read more data and get them processed <br />
/// Entry condition: ostart = ofinish <br />
/// Exit condition: ostart <= ofinish <br>
/// return (ofinish-ostart) (we have this many bytes for you), 0 (no data now,
/// but could have more later), or -1 (absolutely no more data)
/// </summary>
/// <exception cref="System.IO.IOException"/>
private int ReadMoreData()
{
try
{
inStream.ReadFully(lengthBuf);
int length = UnsignedBytesToInt(lengthBuf);
if (Log.IsDebugEnabled())
{
Log.Debug("Actual length is " + length);
}
saslToken = new byte[length];
inStream.ReadFully(saslToken);
}
catch (EOFException)
{
return(-1);
}
try
{
if (saslServer != null)
{
// using saslServer
obuffer = saslServer.Unwrap(saslToken, 0, saslToken.Length);
}
else
{
// using saslClient
obuffer = saslClient.Unwrap(saslToken, 0, saslToken.Length);
}
}
catch (SaslException se)
{
try
{
DisposeSasl();
}
catch (SaslException)
{
}
throw;
}
ostart = 0;
if (obuffer == null)
{
ofinish = 0;
}
else
{
ofinish = obuffer.Length;
}
return(ofinish);
}