1 files changed, 104 insertions, 0 deletions
diff --git a/contrib/dlz/modules/include/dlz_dbi.h b/contrib/dlz/modules/include/dlz_dbi.h
new file mode 100644
index 0000000..5181abd
--- /dev/null
+++ b/contrib/dlz/modules/include/dlz_dbi.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) Stichting NLnet, Netherlands, stichting@nlnet.nl.
+ *
+ * SPDX-License-Identifier: MPL-2.0 and ISC
+ *
+ * The development of Dynamically Loadable Zones (DLZ) for Bind 9 was
+ * conceived and contributed by Rob Butler.
+ *
+ * Permission to use, copy, modify, and distribute this software for any purpose
+ * with or without fee is hereby granted, provided that the above copyright
+ * notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND STICHTING NLNET DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL STICHTING NLNET BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdbool.h>
+
+#include <dlz_list.h>
+#include <dlz_minimal.h>
+#include <dlz_pthread.h>
+
+#pragma once
+
+/*
+ * Types
+ */
+#define REQUIRE_CLIENT 0x01
+#define REQUIRE_QUERY  0x02
+#define REQUIRE_RECORD 0x04
+#define REQUIRE_ZONE   0x08
+
+typedef struct query_segment query_segment_t;
+typedef DLZ_LIST(query_segment_t) query_list_t;
+typedef struct dbinstance dbinstance_t;
+typedef DLZ_LIST(dbinstance_t) db_list_t;
+typedef struct driverinstance driverinstance_t;
+
+/*%
+ * a query segment is all the text between our special tokens
+ * special tokens are %zone%, %record%, %client%
+ */
+struct query_segment {
+	void	    *cmd;
+	unsigned int strlen;
+	bool	     direct;
+	DLZ_LINK(query_segment_t) link;
+};
+
+/*%
+ * a database instance contains everything we need for running
+ * a query against the database.  Using it each separate thread
+ * can dynamically construct a query and execute it against the
+ * database.  The "instance_lock" and locking code in the driver's
+ * make sure no two threads try to use the same DBI at a time.
+ */
+struct dbinstance {
+	void	     *dbconn;
+	query_list_t *allnodes_q;
+	query_list_t *allowxfr_q;
+	query_list_t *authority_q;
+	query_list_t *findzone_q;
+	query_list_t *lookup_q;
+	query_list_t *countzone_q;
+	char	     *query_buf;
+	char	     *zone;
+	char	     *record;
+	char	     *client;
+	dlz_mutex_t   lock;
+	DLZ_LINK(dbinstance_t) link;
+};
+
+/*
+ * Method declarations
+ */
+
+void
+destroy_querylist(query_list_t **querylist);
+
+isc_result_t
+build_querylist(const char *query_str, char **zone, char **record,
+		char **client, query_list_t **querylist, unsigned int flags,
+		log_t log);
+
+char *
+build_querystring(query_list_t *querylist);
+
+isc_result_t
+build_dbinstance(const char *allnodes_str, const char *allowxfr_str,
+		 const char *authority_str, const char *findzone_str,
+		 const char *lookup_str, const char *countzone_str,
+		 dbinstance_t **dbi, log_t log);
+
+void
+destroy_dbinstance(dbinstance_t *dbi);
+
+char *
+get_parameter_value(const char *input, const char *key);