Add ctx flag for auto-key-locate

* src/context.h (gpgme_context): Add auto_key_locate.
* src/engine-gpg.c (engine_gpg): Add auto_key_locate.
(gpg_set_engine_flags, build_argv): Handle auto_key_locate.
(gpg_release): Free auto_key_locate.
* src/gpgme.c (gpgme_release): Free auto_key_locate.
(gpgme_get_ctx_flag, gpgme_set_ctx_flag): Handle auto-key-locate.
* doc/gpgme.texi: Document auto-key-locate flag.
* tests/run-keylist.c (show_usage, main): Add --from-wkd option.

--
This enables users of GPGME to control more fine grained what
auto-key-locate does.  Especially for WKD lookups / refreshes
can this be useful.

GnuPG-Bug-Id: T2917
Differential Revision: https://dev.gnupg.org/D463

1 files changed, 12 insertions, 0 deletions

diff --git a/src/gpgme.c b/src/gpgme.c
index b03c7b87..2d829d9b 100644
--- a/src/gpgme.c
+++ b/src/gpgme.c
@@ -249,6 +249,7 @@ gpgme_release (gpgme_ctx_t ctx)
   free (ctx->lc_messages);
   free (ctx->override_session_key);
   free (ctx->request_origin);
+  free (ctx->auto_key_locate);
   _gpgme_engine_info_release (ctx->engine_info);
   ctx->engine_info = NULL;
   DESTROY_LOCK (ctx->lock);
@@ -546,6 +547,13 @@ gpgme_set_ctx_flag (gpgme_ctx_t ctx, const char *name, const char *value)
     {
       ctx->ignore_mdc_error = abool;
     }
+  else if (!strcmp (name, "auto-key-locate"))
+    {
+      free (ctx->auto_key_locate);
+      ctx->auto_key_locate = strdup (value);
+      if (!ctx->auto_key_locate)
+        err = gpg_error_from_syserror ();
+    }
   else
     err = gpg_error (GPG_ERR_UNKNOWN_NAME);
 
@@ -599,6 +607,10 @@ gpgme_get_ctx_flag (gpgme_ctx_t ctx, const char *name)
     {
       return ctx->ignore_mdc_error? "1":"";
     }
+  else if (!strcmp (name, "auto-key-locate"))
+    {
+      return ctx->auto_key_locate? ctx->auto_key_locate : "";
+    }
   else
     return NULL;
 }