core: New gpgme_set_ctx_flag "request-origin".

* src/context.h (gpgme_context): Add 'request_origin'.
* src/gpgme.c (gpgme_release): Free that field.
(gpgme_set_ctx_flag, gpgme_get_ctx_flag): Add "request-origin".
* src/engine-backend.h (engine_ops): Add 'set_engine_ops' func ptr and
adjust all users.
* src/engine.c (_gpgme_engine_set_engine_flags): New.
* src/op-support.c (_gpgme_op_reset): Call that func.
* src/engine-gpg.c (struct engine_gpg): Add 'request_origin'.
(gpg_set_engine_flags): New.
(_gpgme_engine_ops_gpg): Hook it.
(build_argv): Use command line option --request-origin.
* src/engine-gpgsm.c (struct engine_gpgsm): Add 'request_origin'.
(gpgsm_set_engine_flags): New.
(_gpgme_engine_ops_gpgsm): Hook it.
(start): Send OPTION "request-origin".
* src/engine-assuan.c (struct engine_llass): Add 'request_origin'.
(gpgsm_set_engine_flags): New.
(_gpgme_engine_ops_assuan): Hook it.
(start): Send OPTION "pretend-request-origin".

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

1 files changed, 35 insertions, 0 deletions

diff --git a/src/engine-assuan.c b/src/engine-assuan.c
index bb2290ac..6e603d9d 100644
--- a/src/engine-assuan.c
+++ b/src/engine-assuan.c
@@ -96,6 +96,7 @@ struct engine_llass
     int gpg_agent:1;  /* Assume this is a gpg-agent connection.  */
   } opt;
 
+  char request_origin[10];  /* Copy from the CTX.  */
 };
 typedef struct engine_llass *engine_llass_t;
 
@@ -365,6 +366,24 @@ llass_new (void **engine, const char *file_name, const char *home_dir,
 }
 
 
+/* Copy flags from CTX into the engine object.  */
+static void
+llass_set_engine_flags (void *engine, const gpgme_ctx_t ctx)
+{
+  engine_llass_t llass = engine;
+
+  if (ctx->request_origin)
+    {
+      if (strlen (ctx->request_origin) + 1 > sizeof llass->request_origin)
+        strcpy (llass->request_origin, "xxx"); /* Too long  - force error */
+      else
+        strcpy (llass->request_origin, ctx->request_origin);
+    }
+  else
+    *llass->request_origin = 0;
+}
+
+
 static gpgme_error_t
 llass_set_locale (void *engine, int category, const char *value)
 {
@@ -660,6 +679,21 @@ start (engine_llass_t llass, const char *command)
   int nfds;
   int i;
 
+  if (*llass->request_origin && llass->opt.gpg_agent)
+    {
+      char *cmd;
+
+      cmd = _gpgme_strconcat ("OPTION pretend-request-origin=",
+                              llass->request_origin, NULL);
+      if (!cmd)
+        return gpg_error_from_syserror ();
+      err = assuan_transact (llass->assuan_ctx, cmd, NULL, NULL, NULL,
+                             NULL, NULL, NULL);
+      free (cmd);
+      if (err && gpg_err_code (err) != GPG_ERR_UNKNOWN_OPTION)
+        return err;
+    }
+
   /* We need to know the fd used by assuan for reads.  We do this by
      using the assumption that the first returned fd from
      assuan_get_active_fds() is always this one.  */
@@ -775,6 +809,7 @@ struct engine_ops _gpgme_engine_ops_assuan =
     NULL,               /* set_colon_line_handler */
     llass_set_locale,
     NULL,		/* set_protocol */
+    llass_set_engine_flags,
     NULL,               /* decrypt */
     NULL,               /* delete */
     NULL,		/* edit */