private static byte[] GetDynamicBuffer <THandle>(NegativeSizeReadMethod <THandle> method, THandle handle)
{
int negativeSize = method(handle, null, 0);
if (negativeSize > 0)
{
throw new CryptographicException();
}
byte[] bytes = new byte[-negativeSize];
int ret = method(handle, bytes, bytes.Length);
if (ret != 1)
{
throw new CryptographicException();
}
return(bytes);
}
private static ArraySegment <byte> RentDynamicBuffer <THandle>(NegativeSizeReadMethod <THandle> method, THandle handle)
{
int negativeSize = method(handle, null, 0);
if (negativeSize > 0)
{
throw Interop.Crypto.CreateOpenSslCryptographicException();
}
int targetSize = -negativeSize;
byte[] bytes = CryptoPool.Rent(targetSize);
int ret = method(handle, bytes, targetSize);
if (ret != 1)
{
CryptoPool.Return(bytes);
throw Interop.Crypto.CreateOpenSslCryptographicException();
}
return(new ArraySegment <byte>(bytes, 0, targetSize));
}
