find bug: Long integer digit decoding error about cbexigen

[barsnick]

Hello @gaohtao,
you are absolutely right. current_octet is only promoted to int automatically, when shifting. It needs to be typecasted directly.

We need to review the remaining code, and create a test case for this.

I guess in ISO 15118-2, TMeter and EVSETimeStamp are affected. What did you notice this with?

[gaohtao]

I tested ISO15118-2 protocol SessionSetupRes command, which contains a timestamp defined as int64, I intentionally filled in the timestamp as largeInteger, and I found that the decoded number is wrong.
"{"V2G_Message": {"Header": {"SessionID": "C08CDF36985A7190"}, "Body": {"SessionSetupRes": {"ResponseCode": "OK_NewSessionEstablished", "EVSEID": "UK123E1234", "EVSETimeStamp": 1234567890123456789}}}}";

[barsnick]

This should be fixed on branch main with commit ae4f37e. Please be so kind to test.

Thanks for your report!