core: Extend decryption result with symkey_algo.

* src/gpgme.h.in (gpgme_op_decrypt_result_t): Add field 'symkey_algo'.
* src/decrypt.c (release_op_data): Free SYMKEY_ALGO.
(gpgme_op_decrypt_result): Make sure SYMKEY_ALGO is not NULL.
(parse_decryption_info): New.
(_gpgme_decrypt_status_handler): Parse DECRYPTION_INFO status.
* src/conversion.c (_gpgme_cipher_algo_name): New.
(_gpgme_cipher_mode_name): New.

* tests/run-decrypt.c (print_result): Print SYMKEY_ALGO

* src/util.h (_gpgme_map_gnupg_error): Remove obsolete prototype.
--

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/gpgme.h.in b/src/gpgme.h.in
index 860e0931..202859c3 100644
--- a/src/gpgme.h.in
+++ b/src/gpgme.h.in
@@ -1368,6 +1368,10 @@ struct _gpgme_op_decrypt_result
   /* A textual representation of the session key used to decrypt the
    * message, if available */
   char *session_key;
+
+   /* A string with the symmetric encryption algorithm and mode using
+    * the format "<algo>.<mode>".  */
+  char *symkey_algo;
 };
 typedef struct _gpgme_op_decrypt_result *gpgme_decrypt_result_t;