use libtalerwire instead of duplicating logic

src/exchange-tools/Makefile.am

@@ -45,6 +45,7 @@ taler_exchange_wire_SOURCES = \
   taler-exchange-wire.c
 taler_exchange_wire_LDADD = \
   $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/wire/libtalerwire.la \
   $(top_builddir)/src/util/libtalerutil.la \
   -lgnunetjson \
   -lgnunetutil \

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

@@ -23,6 +23,7 @@
 #include <gnunet/gnunet_json_lib.h>
 #include "taler_crypto_lib.h"
 #include "taler_wire_plugin.h"
+#include "taler_wire_lib.h"
 #include "taler_signatures.h"
 
 
@@ -90,7 +91,6 @@ main (int argc,
   json_error_t err;
   char *json_out;
   struct GNUNET_HashCode salt;
-  char *lib_name;
   struct TALER_WIRE_Plugin *plugin;
 
   GNUNET_assert (GNUNET_OK ==
@@ -159,20 +159,15 @@ main (int argc,
   GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE,
                               &salt,
                               sizeof (salt));
- (void) GNUNET_asprintf (&lib_name,
-                         "libtaler_plugin_wire_%s",
-                         method);
-  plugin = GNUNET_PLUGIN_load (lib_name,
-                               NULL);
+  plugin = TALER_WIRE_plugin_load (cfg,
+                                   method);
   if (NULL == plugin)
   {
-    GNUNET_free (lib_name);
     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
                 "Wire transfer method `%s' not supported\n",
                 method);
     return 1;
   }
-  plugin->library_name = lib_name;
   if (GNUNET_OK !=
       plugin->sign_wire_details (plugin->cls,
                                  j,
@@ -182,14 +177,10 @@ main (int argc,
   {
     /* sign function should have logged applicable errors */
     json_decref (j);
-    GNUNET_PLUGIN_unload (lib_name,
-                          plugin);
-    GNUNET_free (lib_name);
+    TALER_WIRE_plugin_unload (plugin);
     return 1;
   }
-  GNUNET_PLUGIN_unload (lib_name,
-                        plugin);
-  GNUNET_free (lib_name);
+  TALER_WIRE_plugin_unload (plugin);
   GNUNET_free (eddsa_priv);
 
   /* add signature and salt to JSON message */

src/exchange/Makefile.am

@@ -42,9 +42,10 @@ taler_exchange_httpd_SOURCES = \
   taler-exchange-httpd_validation.c taler-exchange-httpd_validation.h
 taler_exchange_httpd_LDADD = \
   $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/wire/libtalerwire.la \
   $(top_builddir)/src/json/libtalerjson.la \
-  $(top_builddir)/src/util/libtalerutil.la \
   $(top_builddir)/src/exchangedb/libtalerexchangedb.la \
+  $(top_builddir)/src/util/libtalerutil.la \
   -lmicrohttpd \
   -lgnunetutil \
   -lgnunetjson \

src/exchange/taler-exchange-httpd_validation.c

@@ -23,6 +23,7 @@
 #include <gnunet/gnunet_util_lib.h>
 #include "taler-exchange-httpd.h"
 #include "taler-exchange-httpd_validation.h"
+#include "taler_wire_lib.h"
 #include "taler_wire_plugin.h"
 
 
@@ -76,7 +77,6 @@ TMH_VALIDATION_init (const struct GNUNET_CONFIGURATION_Handle *cfg)
 {
   struct Plugin *p;
   char *wireformats;
-  char *lib_name;
   const char *token;
 
   /* Find out list of supported wire formats */
@@ -97,24 +97,19 @@ TMH_VALIDATION_init (const struct GNUNET_CONFIGURATION_Handle *cfg)
        token = strtok (NULL,
                        " "))
   {
-    (void) GNUNET_asprintf (&lib_name,
-                            "libtaler_plugin_wire_%s",
-                            token);
     p = GNUNET_new (struct Plugin);
     p->type = GNUNET_strdup (token);
-    p->plugin = GNUNET_PLUGIN_load (lib_name,
-                                    (void *) cfg);
+    p->plugin = TALER_WIRE_plugin_load (cfg,
+                                        token);
     if (NULL == p->plugin)
     {
       GNUNET_free (p);
       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                   "Failed to load plugin %s\n",
-                  lib_name);
-      GNUNET_free (lib_name);
+                  token);
       TMH_VALIDATION_done ();
       return GNUNET_SYSERR;
     }
-    p->plugin->library_name = lib_name;
     GNUNET_CONTAINER_DLL_insert (wire_head,
                                  wire_tail,
                                  p);
@@ -131,17 +126,13 @@ void
 TMH_VALIDATION_done ()
 {
   struct Plugin *p;
-  char *lib_name;
 
   while (NULL != (p = wire_head))
   {
     GNUNET_CONTAINER_DLL_remove (wire_head,
                                  wire_tail,
                                  p);
-    lib_name = p->plugin->library_name;
-    GNUNET_assert (NULL == GNUNET_PLUGIN_unload (lib_name,
-                                                 p->plugin));
-    GNUNET_free (lib_name);
+    TALER_WIRE_plugin_unload (p->plugin);
     GNUNET_free (p->type);
     GNUNET_free (p);
   }