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
flag).

GnuPG-bug-id: 6705

1 files changed, 1 insertions, 0 deletions

diff --git a/src/key.c b/src/key.c
index 322bd0ac..93cdc1c8 100644
--- a/src/key.c
+++ b/src/key.c
@@ -342,6 +342,7 @@ gpgme_key_unref (gpgme_key_t key)
     {
       gpgme_subkey_t next = subkey->next;
       free (subkey->fpr);
+      free (subkey->v5fpr);
       free (subkey->curve);
       free (subkey->keygrip);
       free (subkey->card_number);