fix taler-exchange-wire way of loading configuration

src/exchange-tools/taler-exchange-wire.c

@@ -47,42 +47,24 @@ static char *method;
 static char *output_filename;
 
 /**
- * Our configuration.
+ * Return value from main().
  */
-static struct GNUNET_CONFIGURATION_Handle *cfg;
-
+static int global_ret;
 
 /**
- * The main function of the taler-exchange-sepa tool.  This tool is used
- * to sign the SEPA bank account details using the master key.
+ * Main function that will be run.
  *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be NULL!)
+ * @param c configuration
  */
-int
-main (int argc,
-      char *const *argv)
+static void
+run (void *cls,
+     char *const *args,
+     const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
 {
-  char *cfgfile = NULL;
-  const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    GNUNET_GETOPT_OPTION_CFG_FILE (&cfgfile),
-    {'j', "json", "JSON",
-     "account information in JSON format", 1,
-     &GNUNET_GETOPT_set_string, &json_in},
-    {'m', "master-key", "FILE",
-     "master key file (private key)", 1,
-     &GNUNET_GETOPT_set_filename, &masterkeyfile},
-    {'t', "type", "METHOD",
-     "which wire transfer method (i.e. 'test' or 'sepa') is this for?", 1,
-     &GNUNET_GETOPT_set_string, &method},
-    {'o', "output", "FILE",
-     "where to write the result", 1,
-     &GNUNET_GETOPT_set_filename, &output_filename},
-    GNUNET_GETOPT_OPTION_HELP ("Setup /wire response"),
-    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
-    GNUNET_GETOPT_OPTION_END
-  };
   struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_priv;
   struct TALER_MasterPrivateKeyP key;
   struct TALER_MasterSignatureP sig;
@@ -92,26 +74,6 @@ main (int argc,
   struct GNUNET_HashCode salt;
   struct TALER_WIRE_Plugin *plugin;
 
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_log_setup ("taler-exchange-wire",
-                                   "WARNING",
-                                   NULL));
-
-  if (GNUNET_GETOPT_run ("taler-exchange-wire",
-                         options,
-                         argc, argv) < 0)
-    return 1;
-  cfg = GNUNET_CONFIGURATION_create ();
-  if (GNUNET_SYSERR == GNUNET_CONFIGURATION_load (cfg,
-                                                  cfgfile))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                _("Malformed configuration file `%s', exit ...\n"),
-                cfgfile);
-    GNUNET_free_non_null (cfgfile);
-    return 1;
-  }
-  GNUNET_free_non_null (cfgfile);
   if ( (NULL == masterkeyfile) &&
        (GNUNET_OK !=
         GNUNET_CONFIGURATION_get_value_filename (cfg,
@@ -121,7 +83,8 @@ main (int argc,
   {
     fprintf (stderr,
              "Master key file not given in neither configuration nor command-line\n");
-    return 1;
+    global_ret = 1;
+    return;
   }
   eddsa_priv = GNUNET_CRYPTO_eddsa_key_create_from_file (masterkeyfile);
   if (NULL == eddsa_priv)
@@ -129,19 +92,22 @@ main (int argc,
     fprintf (stderr,
              "Failed to initialize master key from file `%s'\n",
              masterkeyfile);
-    return 1;
+    global_ret = 1;
+    return;
   }
   if (NULL == json_in)
   {
     fprintf (stderr,
              "Required -j argument missing\n");
-    return 1;
+    global_ret = 1;
+    return;
   }
   if (NULL == method)
   {
     fprintf (stderr,
              "Required -t argument missing\n");
-    return 1;
+    global_ret = 1;
+    return;
   }
   j = json_loads (json_in,
                   JSON_REJECT_DUPLICATES,
@@ -152,7 +118,8 @@ main (int argc,
              "Failed to parse JSON: %s (at offset %u)\n",
              err.text,
              (unsigned int) err.position);
-    return 1;
+    global_ret = 1;
+    return;
   }
   json_object_set_new (j,
                        "type",
@@ -168,7 +135,8 @@ main (int argc,
     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
                 "Wire transfer method `%s' not supported\n",
                 method);
-    return 1;
+    global_ret = 1;
+    return;
   }
   if (GNUNET_OK !=
       plugin->sign_wire_details (plugin->cls,
@@ -180,7 +148,8 @@ main (int argc,
     /* sign function should have logged applicable errors */
     json_decref (j);
     TALER_WIRE_plugin_unload (plugin);
-    return 1;
+    global_ret = 1;
+    return;
   }
   TALER_WIRE_plugin_unload (plugin);
   GNUNET_free (eddsa_priv);
@@ -211,7 +180,50 @@ main (int argc,
 	   json_out);
   fflush (stdout);
   free (json_out);
-  return 0;
 }
 
+
+/**
+ * The main function of the taler-exchange-wire tool.  This tool is
+ * used to sign the bank account details using the master key.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc,
+      char *const *argv)
+{
+  const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'j', "json", "JSON",
+     "account information in JSON format", 1,
+     &GNUNET_GETOPT_set_string, &json_in},
+    {'m', "master-key", "FILE",
+     "master key file (private key)", 1,
+     &GNUNET_GETOPT_set_filename, &masterkeyfile},
+    {'t', "type", "METHOD",
+     "which wire transfer method (i.e. 'test' or 'sepa') is this for?", 1,
+     &GNUNET_GETOPT_set_string, &method},
+    {'o', "output", "FILE",
+     "where to write the result", 1,
+     &GNUNET_GETOPT_set_filename, &output_filename},
+    GNUNET_GETOPT_OPTION_END
+  };
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-exchange-wire",
+                                   "WARNING",
+                                   NULL));
+  if (GNUNET_OK !=
+      GNUNET_PROGRAM_run (argc, argv,
+			  "taler-exchange-wire",
+			  "Setup /wire response",
+			  options,
+			  &run, NULL))
+    return 1;
+  return global_ret;
+}
+
+
 /* end of taler-exchange-wire.c */