1 files changed, 63 insertions, 0 deletions
diff --git a/src/knot/query/capture.c b/src/knot/query/capture.c
new file mode 100644
index 0000000..43f3e54
--- /dev/null
+++ b/src/knot/query/capture.c
@@ -0,0 +1,63 @@
+/*  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 <https://www.gnu.org/licenses/>.
+ */
+
+#include <assert.h>
+
+#include "knot/query/capture.h"
+
+static int reset(knot_layer_t *ctx)
+{
+	return KNOT_STATE_PRODUCE;
+}
+
+static int finish(knot_layer_t *ctx)
+{
+	return KNOT_STATE_NOOP;
+}
+
+static int begin(knot_layer_t *ctx, void *module_param)
+{
+	ctx->data = module_param; /* struct capture_param */
+	return reset(ctx);
+}
+
+static int prepare_query(knot_layer_t *ctx, knot_pkt_t *pkt)
+{
+	return KNOT_STATE_CONSUME;
+}
+
+static int capture(knot_layer_t *ctx, knot_pkt_t *pkt)
+{
+	assert(pkt && ctx && ctx->data);
+	struct capture_param *param = ctx->data;
+
+	knot_pkt_copy(param->sink, pkt);
+
+	return KNOT_STATE_DONE;
+}
+
+const knot_layer_api_t *query_capture_api(void)
+{
+	static const knot_layer_api_t API = {
+		.begin = begin,
+		.reset = reset,
+		.finish = finish,
+		.consume = capture,
+		.produce = prepare_query,
+	};
+
+	return &API;
+}