New mode to list a v5 fingerprint for v4 packets.
* src/gpgme.h.in (GPGME_KEYLIST_MODE_WITH_V5FPR): New. (struct _gpgme_subkey): Add field v5fpr. * src/engine-gpg.c (gpg_keylist_build_options): Pass new option to gpg. * src/key.c (gpgme_key_unref): Free new field. * src/keylist.c (op_data_t): Parse and add "fp2" line. * tests/run-keylist.c (show_usage): Add option --v5fpr. * src/keylist.c (op_data_t): Add field failure_code. (keylist_status_handler): Handle special value. (gpgme_op_keylist_end): Return an error if a FAILURE line has been seen.
Note that the failure code part has been added to better diagnose
problems if a wrong gpg version is used. If verything works right we
should not get this because we check that the gnupg version sis either
2.4.4 or less than 2.3 and >= 2.2.42.
Note further that the v5fpr field may also be used to get the SHA-256
fingerprint of X.509 certificates (even without passing the new mode
- GnuPG-bug-id: T6705