mifare_ultralightc_authenticate(): Set errno when authentication fails.

[GoogleCodeExporter]

Currently, mifare_ultralightc_authenticate() returns -1 and does not touch 
errno when authentication fails. This is very strange and probably errorneous 
behavior and makes it difficult to do proper error handling.

I suggest to change libfreefare to set errno to EACCES (access denied) if 
authentication fails. Attached is a patch that implements this change.

Original issue reported on code.google.com by fuz...@gmail.com on 25 Feb 2014 at 12:33

Attachments:

• 0001-Return-EACCES-when-authentication-to-an-ultralight-t.patch

[GoogleCodeExporter]

Thank you.
This has been pushed but I leave the issue open as I will have probably to 
implement the same for the other cards.
I'll check once I can do some tests.

Original comment by yob...@gmail.com on 13 Mar 2014 at 1:21

[GoogleCodeExporter]

Original comment by yob...@gmail.com on 13 Mar 2014 at 1:21

• Changed state: Started

[GoogleCodeExporter]

Fixed by commits 
184c5dcbdf50b5f5700ee5c7c2aa3fc70a5028b6 ULC
c72a55993b0c57f5a6e6b0544cefdc5463efca47 MFC
c4e657f8cdf8584996846e49ce108b392ac6c968 DF

Original comment by yob...@gmail.com on 14 Mar 2014 at 9:53

• Changed state: Fixed