implemented database

1 files changed, 66 insertions, 0 deletions

diff --git a/src/database.h b/src/database.h
new file mode 100644
index 0000000..e6ba882
--- /dev/null
+++ b/src/database.h
@@ -0,0 +1,66 @@
+/*
+ * src/database.h
+ * (c) 2021 Jonas Gunz <himself@jonasgunz.de>
+ * License: MIT
+ */
+
+#pragma once
+
+#include <stdlib.h>
+
+#include "tree.h"
+
+// TODO remove
+#include "dns.h"
+
+/*
+ * Structure
+ *
+ * |-CLASS_IN
+ * | |-RR_A tree
+ * | |-RR_AAAA tree
+ * | |-...
+ * |-CLASS_CS
+ * | |-...
+ * |-...
+ *
+ * !! Always substract 1 from CLASS and RR Types, they start with 1
+ *
+ * Anything other than IN is probably never needed, but easier to do now than later.
+ *
+ * Data format in tree void*
+ * 0     4     6         2+len
+ * | ttl | len | data ... |
+ * ttl: uint32_t
+ * len: uint16_t
+ *
+ */
+
+#define DB_CLASS_LEN	3
+#define DB_RR_LEN	32
+
+struct database {
+	struct tree_node*** zone;
+};
+
+struct database_rdata {
+	char*    rdata;
+	uint16_t rdlen;
+	uint32_t ttl;
+};
+
+int database_populate (
+	struct database* _database,
+	char* _zonefile
+);
+
+int database_destroy ( struct database* _database );
+
+int database_query (
+	struct database_rdata* _rdata,
+	struct database* _database,
+	const char* _qname,
+	int _qname_len,
+	uint16_t _qtype,
+	uint16_t _qclass
+);