core: Support usage of gpgtar for verifying a signed archive

* src/gpgme.h.in (gpgme_verify_flags_t): New enum.
(GPGME_VERIFY_ARCHIVE): New const.
(gpgme_op_verify_ext_start): New func.
(gpgme_op_verify_ext): New func.
* src/gpgme.def, src/libgpgme.vers: Add new functions.
* src/verify.c (gpgme_op_verify_ext_start): New.
(gpgme_op_verify_ext): New.
(verify_start): Add arg FLAGS.  Pass the flags to
_gpgme_engine_op_verify.
(gpgme_op_verify_start): Call gpgme_op_verify_ext_start with 0 for
FLAGS.
(gpgme_op_verify): Call gpgme_op_verify_ext with 0 for FLAGS.
* src/engine.c, src/engine.h (_gpgme_engine_op_verify): Add arg FLAGS.
* src/engine-backend.h (struct engine_ops): Add FLAGS to 'verify'.
* src/engine-gpg.c (gpg_verify): Add arg FLAGS. Set use_gpgtar engine
flag if GPGME_VERIFY_ARCHIVE flag is set. Check for new enough gpg. Use
add_gpg_arg for gpg-only options without a value. Set extra options for
gpgtar and pass input data to stdin when using gpgtar.
* src/engine-gpgsm.c (gpgsm_verify): Add arg FLAGS. Return error if
GPGME_VERIFY_ARCHIVE flag is set.
* src/engine-uiserver.c (uiserver_verify): Ditto.

* tests/run-verify.c (show_usage): New options --archive, --directory,
and --diagnostics.
(main): Parse new options. Verify and extract with gpgtar if --archive
is given. Set file name of output data to value of --directory option.
Print stderr of gpg/gpgtar if --diagnostics is given.
--

GnuPG-bug-id: 6342

1 files changed, 6 insertions, 2 deletions

diff --git a/src/engine-uiserver.c b/src/engine-uiserver.c
index 232eb4b4..7aa9cfe3 100644
--- a/src/engine-uiserver.c
+++ b/src/engine-uiserver.c
@@ -1294,8 +1294,9 @@ uiserver_sign (void *engine, gpgme_data_t in, gpgme_data_t out,
 
 /* FIXME: Missing a way to specify --silent.  */
 static gpgme_error_t
-uiserver_verify (void *engine, gpgme_data_t sig, gpgme_data_t signed_text,
-                 gpgme_data_t plaintext, gpgme_ctx_t ctx)
+uiserver_verify (void *engine, gpgme_verify_flags_t flags, gpgme_data_t sig,
+                 gpgme_data_t signed_text, gpgme_data_t plaintext,
+                 gpgme_ctx_t ctx)
 {
   engine_uiserver_t uiserver = engine;
   gpgme_error_t err;
@@ -1316,6 +1317,9 @@ uiserver_verify (void *engine, gpgme_data_t sig, gpgme_data_t signed_text,
   else
     return gpgme_error (GPG_ERR_UNSUPPORTED_PROTOCOL);
 
+  if (flags & GPGME_VERIFY_ARCHIVE)
+    return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
   if (gpgrt_asprintf (&cmd, "VERIFY%s", protocol) < 0)
     return gpg_error_from_syserror ();