cpp: Return actual error if revocation fails

* lang/cpp/src/editinteractor.cpp, lang/cpp/src/editinteractor.h
(EditInteractor::parseStatusError): New.
* lang/cpp/src/gpgrevokekeyeditinteractor.cpp
(GpgRevokeKeyEditInteractor::Private::nextState): Handle status
error.
--

With this change the interactor returns a proper error like "Bad
Passphrase" or "Empty Passphrase" instead of an unspecific "General
Error" if a status error occurred.

GnuPG-bug-id: 5904

1 files changed, 4 insertions, 0 deletions

diff --git a/lang/cpp/src/gpgrevokekeyeditinteractor.cpp b/lang/cpp/src/gpgrevokekeyeditinteractor.cpp
index a90b5934..86b3c3c4 100644
--- a/lang/cpp/src/gpgrevokekeyeditinteractor.cpp
+++ b/lang/cpp/src/gpgrevokekeyeditinteractor.cpp
@@ -116,6 +116,10 @@ unsigned int GpgRevokeKeyEditInteractor::Private::nextState(unsigned int status,
         return q->state();
     }
 
+    if (status == GPGME_STATUS_ERROR) {
+        err = q->parseStatusError(args);
+        return ERROR;
+    }
     switch (const auto state = q->state()) {
     case START:
         if (status == GPGME_STATUS_GET_LINE &&