Introduced empty cookies module.

modules/cookies/cookies.c

+/*  Copyright (C) 2016 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libknot/packet/pkt.h>
+
+#include "lib/module.h"
+#include "lib/layer.h"
+
+#define DEBUG_MSG(qry, fmt...) QRDEBUG(qry, "cookies",  fmt)
+
+/*
+ * Module implementation.
+ */
+
+#if 0
+KR_EXPORT
+const knot_layer_api_t *cookies_layer(struct kr_module *module)
+{
+	static knot_layer_api_t _layer = { 0,
+	};
+	/* Store module reference */
+	_layer.data = module;
+	return &_layer;
+}
+
+KR_EXPORT
+int cookies_init(struct kr_module *module)
+{
+	DEBUG_MSG(NULL, "%s", "Loaded.\n");
+
+	module->data = NULL;
+	return kr_ok();
+}
+
+KR_EXPORT
+int  cookies_deinit(struct kr_module *module)
+{
+	DEBUG_MSG(NULL, "%s", "Unloaded.\n");
+
+	return kr_ok();
+}
+#endif
+
+KR_MODULE_EXPORT(cookies);

modules/cookies/cookies.mk

+cookies_CFLAGS := -fvisibility=hidden -fPIC
+cookies_SOURCES := modules/cookies/cookies.c
+cookies_DEPEND := $(libkres)
+cookies_LIBS := $(contrib_TARGET) $(libkres_TARGET) $(libkres_LIBS)
+$(call make_c_module,cookies)

modules/modules.mk

 # List of built-in modules
 modules_TARGETS := hints \
-                   stats
+                   stats \
+                   cookies
 
 # Memcached
 ifeq ($(HAS_libmemcached),yes)