1 files changed, 47 insertions, 0 deletions
diff --git a/src/zonefile.h b/src/zonefile.h
new file mode 100644
index 0000000..94a0de7
--- /dev/null
+++ b/src/zonefile.h
@@ -0,0 +1,47 @@
+/*
+ * zonefile.h
+ * (c) 2019 Jonas Gunz
+ * License: MIT
+ * */
+
+#pragma once
+
+#include <stdint.h>
+#include <stdlib.h>
+
+struct record_entry {
+	char* name;
+	uint32_t ttl;
+	uint16_t class;
+	uint16_t type;
+	uint16_t rdlength;
+	char* rd;
+};
+
+struct record_node {
+	struct record_entry* rr;
+	struct record_node* below;
+	struct record_node* above;
+};
+
+/**
+ * */
+int zonefile_parse ( char* _filename, struct record_node* _dns_zone );
+
+int zonefile_query ( char* _hostname, struct record_entry* _entry );
+
+static int tree_insert ( struct record_node* _root, struct record_entry* _node );
+
+static int tree_balance ( struct record_node* _root );
+
+static struct record_entry* tree_get ( struct record_node* _root, char* _query );
+
+static int tree_destroy ( struct record_node* _root );
+
+/**
+ * returns:
+ * 0  :: _1 == _2
+ * -1 :: _1 <  _2
+ * +1 :: _1 >  _2
+ * */
+int string_compare ( char* _1, char* _2 );