private void Initialize(Secur32.SecHandle credentials, string targetName, int fContextReq, int targetDataRep, Secur32.SecHandle context, Secur32.SecBufferDesc continueTokenBuffer)
{
var tokenSize = Secur32.MAX_TOKEN_SIZE;
var rc = 0;
var hasContextAndContinue = context != Secur32.SecHandle.Zero && continueTokenBuffer != Secur32.SecBufferDesc.Zero;
do
{
_token.Dispose();
_token = new Secur32.SecBufferDesc(tokenSize);
if (hasContextAndContinue)
{
rc = Secur32.InitializeSecurityContext(
ref credentials,
ref context,
targetName,
fContextReq,
0,
targetDataRep,
ref continueTokenBuffer,
0,
ref _context,
ref _token,
out _contextAttributes,
out _contextLifetime);
}
else
{
rc = Secur32.InitializeSecurityContext(
ref credentials,
IntPtr.Zero,
targetName,
fContextReq,
0,
targetDataRep,
IntPtr.Zero,
0,
ref _context,
ref _token,
out _contextAttributes,
out _contextLifetime);
}
switch (rc)
{
case Secur32.SEC_E_INSUFFICIENT_MEMORY:
tokenSize += Secur32.MAX_TOKEN_SIZE;
break;
case Secur32.SEC_E_OK:
break;
case Secur32.SEC_I_CONTINUE_NEEDED:
_continue = true;
break;
default:
throw new Win32Exception(rc);
}
} while (rc == Secur32.SEC_E_INSUFFICIENT_MEMORY);
}
