core: New function gpgme_op_setownertrust

* src/Makefile.am (main_sources): Add new file.
* src/context.h (ctx_op_data_id_t): Add OPDATA_SETOWNERTRUST.
* src/engine.c, src/engine.h (_gpgme_engine_op_setownertrust): New.
* src/engine-backend.h (engine_ops): Add 'setownertrust' and adjust all
engine initializers.
* src/engine-gpg.c (gpg_setownertrust): New.
(_gpgme_engine_ops_gpg): Set setownertrust to gpg_setownertrust.
* src/gpgme.h.in (gpgme_op_setownertrust_start, gpgme_op_setownertrust):
New.
* src/gpgme.def, src/libgpgme.vers: Add new functions.
* src/setownertrust.c: New.

* doc/gpgme.texi: Document new functions.

* tests/Makefile.am (noinst_PROGRAMS): Add new test program.
* tests/run-setownertrust.c: New.

* tests/gpg/Makefile.am (c_tests): Add new file. (LDADD): Add
@GPG_ERROR_LIBS@.
* tests/gpg/t-setownertrust.c: New.
* tests/gpg/t-support.h (have_gpg_version): New.

--

This extends GPGME to support the --quick-set-ownertrust command added
by GnuPG 2.4.6. This allows changing the owner trust of keys and
enabling/disabling keys without using the editinteractor interface.

GnuPG-bug-id: 7239

1 files changed, 22 insertions, 2 deletions

diff --git a/tests/gpg/t-support.h b/tests/gpg/t-support.h
index ae70cecc..40b03b7f 100644
--- a/tests/gpg/t-support.h
+++ b/tests/gpg/t-support.h
@@ -19,19 +19,21 @@
  * SPDX-License-Identifier: LGPL-2.1-or-later
  */
 
+#include <gpgme.h>
+#include <gpg-error.h>
+
 #include <unistd.h>
 #include <errno.h>
 #include <stdlib.h>
 #include <locale.h>
 #include <limits.h>
 #include <ctype.h>
+#include <string.h>
 
 #ifdef HAVE_W32_SYSTEM
 #include <windows.h>
 #endif
 
-#include <gpgme.h>
-
 #ifndef PGM
 #define PGM "unknown program; define PGM before including t-support.h"
 #endif
@@ -271,3 +273,21 @@ print_import_result (gpgme_import_result_t r)
           r->not_imported,
           r->skipped_v3_keys);
 }
+
+
+/* Return true if the gpg engine's version is at least REQ_VERSION.  */
+int
+have_gpg_version (const char *req_version)
+{
+  gpgme_engine_info_t engine_info;
+  init_gpgme (GPGME_PROTOCOL_OpenPGP);
+
+  fail_if_err (gpgme_get_engine_info (&engine_info));
+  for (; engine_info; engine_info = engine_info->next)
+    if (engine_info->protocol == GPGME_PROTOCOL_OpenPGP)
+      break;
+
+  test (engine_info);
+
+  return gpgrt_cmp_version (engine_info->version, req_version, 3) >= 0;
+}