core: Pass the engine's version string to the engine's new function.

* src/engine-backend.h (engine_ops): Add arg 'version' to NEW.
* src/engine-assuan.c (llass_new): Add dummy arg 'version'.
* src/engine-g13.c (g13_new): Ditto.
* src/engine-gpgconf.c (gpgconf_new): Ditto.
* src/engine-gpgsm.c (gpgsm_new): Ditto.
* src/engine-spawn.c (engspawn_new): Ditto.
* src/engine-uiserver.c (uiserver_new): Ditto.
* src/engine.c (_gpgme_engine_new): Pass version string to the new
function.
* src/engine-gpg.c (struct engine_gpg): Add field 'version'.
(gpg_new): Add arg 'version'.
(gpg_release): Free VERSION.

Signed-off-by: Werner Koch <wk@gnupg.org>

src/engine-assuan.c

@@ -212,12 +212,15 @@ llass_release (void *engine)
 /* Create a new instance. If HOME_DIR is NULL standard options for use
    with gpg-agent are issued.  */
 static gpgme_error_t
-llass_new (void **engine, const char *file_name, const char *home_dir)
+llass_new (void **engine, const char *file_name, const char *home_dir,
+           const char *version)
 {
   gpgme_error_t err = 0;
   engine_llass_t llass;
   char *optstr;
 
+  (void)version; /* Not yet used.  */
+
   llass = calloc (1, sizeof *llass);
   if (!llass)
     return gpg_error_from_syserror ();

src/engine-backend.h

@@ -44,7 +44,8 @@ struct engine_ops
   const char *(*get_req_version) (void);
 
   gpgme_error_t (*new) (void **r_engine,
-			const char *file_name, const char *home_dir);
+			const char *file_name, const char *home_dir,
+                        const char *version);
 
   /* Member functions.  */
   void (*release) (void *engine);

src/engine-g13.c

@@ -212,7 +212,8 @@ g13_release (void *engine)
 
 
 static gpgme_error_t
-g13_new (void **engine, const char *file_name, const char *home_dir)
+g13_new (void **engine, const char *file_name, const char *home_dir,
+         const char *version)
 {
   gpgme_error_t err = 0;
   engine_g13_t g13;
@@ -224,6 +225,8 @@ g13_new (void **engine, const char *file_name, const char *home_dir)
   char *dft_ttytype = NULL;
   char *optstr;
 
+  (void)version; /* Not yet used.  */
+
   g13 = calloc (1, sizeof *g13);
   if (!g13)
     return gpg_error_from_syserror ();

src/engine-gpg.c

@@ -78,6 +78,7 @@ typedef gpgme_error_t (*colon_preprocessor_t) (char *line, char **rline);
 struct engine_gpg
 {
   char *file_name;
+  char *version;
 
   char *lc_messages;
   char *lc_ctype;
@@ -388,6 +389,8 @@ gpg_release (void *engine)
 
   if (gpg->file_name)
     free (gpg->file_name);
+  if (gpg->version)
+    free (gpg->version);
 
   if (gpg->lc_messages)
     free (gpg->lc_messages);
@@ -416,7 +419,8 @@ gpg_release (void *engine)
 
 
 static gpgme_error_t
-gpg_new (void **engine, const char *file_name, const char *home_dir)
+gpg_new (void **engine, const char *file_name, const char *home_dir,
+         const char *version)
 {
   engine_gpg_t gpg;
   gpgme_error_t rc = 0;
@@ -438,6 +442,16 @@ gpg_new (void **engine, const char *file_name, const char *home_dir)
 	}
     }
 
+  if (version)
+    {
+      gpg->version = strdup (version);
+      if (!gpg->version)
+	{
+	  rc = gpg_error_from_syserror ();
+	  goto leave;
+	}
+    }
+
   gpg->argtail = &gpg->arglist;
   gpg->status.fd[0] = -1;
   gpg->status.fd[1] = -1;

src/engine-gpgconf.c

@@ -90,11 +90,14 @@ gpgconf_release (void *engine)
 
 
 static gpgme_error_t
-gpgconf_new (void **engine, const char *file_name, const char *home_dir)
+gpgconf_new (void **engine, const char *file_name, const char *home_dir,
+             const char *version)
 {
   gpgme_error_t err = 0;
   engine_gpgconf_t gpgconf;
 
+  (void)version; /* Not yet used.  */
+
   gpgconf = calloc (1, sizeof *gpgconf);
   if (!gpgconf)
     return gpg_error_from_syserror ();

src/engine-gpgsm.c

@@ -237,7 +237,8 @@ gpgsm_release (void *engine)
 
 
 static gpgme_error_t
-gpgsm_new (void **engine, const char *file_name, const char *home_dir)
+gpgsm_new (void **engine, const char *file_name, const char *home_dir,
+           const char *version)
 {
   gpgme_error_t err = 0;
   engine_gpgsm_t gpgsm;
@@ -253,6 +254,8 @@ gpgsm_new (void **engine, const char *file_name, const char *home_dir)
   char *dft_ttytype = NULL;
   char *optstr;
 
+  (void)version; /* Not yet used.  */
+
   gpgsm = calloc (1, sizeof *gpgsm);
   if (!gpgsm)
     return gpg_error_from_syserror ();

src/engine-spawn.c

@@ -324,12 +324,14 @@ engspawn_get_req_version (void)
 
 
 static gpgme_error_t
-engspawn_new (void **engine, const char *file_name, const char *home_dir)
+engspawn_new (void **engine, const char *file_name, const char *home_dir,
+              const char *version)
 {
   engine_spawn_t esp;
 
   (void)file_name;
   (void)home_dir;
+  (void)version;
 
   esp = calloc (1, sizeof *esp);
   if (!esp)

src/engine-uiserver.c

@@ -238,7 +238,8 @@ uiserver_release (void *engine)
 
 
 static gpgme_error_t
-uiserver_new (void **engine, const char *file_name, const char *home_dir)
+uiserver_new (void **engine, const char *file_name, const char *home_dir,
+              const char *version)
 {
   gpgme_error_t err = 0;
   engine_uiserver_t uiserver;
@@ -247,6 +248,8 @@ uiserver_new (void **engine, const char *file_name, const char *home_dir)
   char *dft_ttytype = NULL;
   char *optstr;
 
+  (void)version; /* Not yet used.  */
+
   uiserver = calloc (1, sizeof *uiserver);
   if (!uiserver)
     return gpg_error_from_syserror ();

src/engine.c

@@ -463,7 +463,8 @@ _gpgme_engine_new (gpgme_engine_info_t info, engine_t *r_engine)
     {
       gpgme_error_t err;
       err = (*engine->ops->new) (&engine->engine,
-				 info->file_name, info->home_dir);
+				 info->file_name, info->home_dir,
+                                 info->version);
       if (err)
 	{
 	  free (engine);