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+/*
+ * dns.h -- defines for the Domain Name System
+ *
+ * Copyright (c) 2005-2008, NLnet Labs. All rights reserved.
+ *
+ * See LICENSE for the license.
+ *
+ * This library was created by:
+ * Jelte Jansen, Erik Rozendaal and Miek Gieben
+ *
+ * A bunch of defines that are used in the DNS.
+ */
+
+
+/**
+\mainpage LDNS Documentation
+
+\section introduction Introduction
+
+The goal of ldns is to simplify DNS programming, it supports recent RFCs
+like the DNSSEC documents, and allow developers to easily create software
+conforming to current RFCs, and experimental software for current Internet
+drafts. A secondary benefit of using ldns is speed, because ldns is written
+in C, and although it is not optimized for performance, it should be a lot
+faster than Perl.
+
+The first main tool to use ldns is Drill, from which part of the library was
+derived. From version 1.0.0 on, drill is included in the ldns release
+and will not be distributed seperately anymore. The library also includes some
+other examples and tools to show how it can be used. These can be found in the
+examples/ directory in the tarball.
+
+ldns depends on OpenSSL for it's cryptographic functions.
+Feature list
+
+  - Transparent IPv4 and IPv6 support (overridable if necessary),
+  - TSIG support,
+  - DNSSEC support; signing and verification,
+  - small size,
+  - online documentation as well as manual pages. 
+
+If you want to send us patches please use the code from subversion (trunk). 
+
+\section using_ldns Using ldns
+
+Almost all interaction between an application and ldns goes through the ldns
+data structures (\ref ldns_rr, \ref ldns_pkt, etc.). These are input or
+output to the functions of ldns. For example, \ref ldns_zone_new_frm_fp
+reads a zone from a \c FILE pointer, and returns an \ref ldns_zone
+structure.
+
+
+Let's use Drill as an example. Drill is a tool much like dig, whose most
+basic function is to send 1 query to a nameserver and print the response.
+
+To be able to do this, drill uses the resolver module of ldns, which acts as
+a stub resolver. The resolver module uses the net module to actually send
+the query that drill requested. It then uses the wire2host module to
+translate the response and place it in ldns' internal structures. These are
+passed back to drill, which then uses the host2str module to print the
+response in presentation format.
+
+\section gettingstarted Getting Started
+
+See the \ref design page for a very high level description of the design
+choices made for ldns. 
+
+For an overview of the functions and types ldns provides, you can check out
+the \ref ldns ldns header file descriptions.
+
+If you want to see some libdns action, you can read our tutorials:
+  - \ref tutorial1_mx
+  - \ref tutorial2_zone
+  - \ref tutorial3_signzone
+
+Or you can just use the menu above to browse through the API docs.
+
+<div style="visibility:hidden;">
+\image html LogoInGradientBar2-y100.png
+</div>
+*/
+
+/**
+ * \file ldns.h
+ *
+ * Including this file will include all ldns files, and define some lookup tables.
+ */
+
+#ifndef LDNS_DNS_H
+#define LDNS_DNS_H
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <ldns/util.h>
+#include <ldns/buffer.h>
+#include <ldns/common.h>
+#include <ldns/dname.h>
+#include <ldns/dnssec.h>
+#include <ldns/dnssec_verify.h>
+#include <ldns/dnssec_sign.h>
+#include <ldns/error.h>
+#include <ldns/higher.h>
+#include <ldns/host2str.h>
+#include <ldns/host2wire.h>
+#include <ldns/net.h>
+#include <ldns/packet.h>
+#include <ldns/rdata.h>
+#include <ldns/resolver.h>
+#include <ldns/rr.h>
+#include <ldns/str2host.h>
+#include <ldns/tsig.h>
+#include <ldns/update.h>
+#include <ldns/wire2host.h>
+#include <ldns/rr_functions.h>
+#include <ldns/keys.h>
+#include <ldns/parse.h>
+#include <ldns/zone.h>
+#include <ldns/dnssec_zone.h>
+#include <ldns/rbtree.h>
+#include <ldns/sha1.h>
+#include <ldns/sha2.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define LDNS_IP4ADDRLEN      (32/8)
+#define LDNS_IP6ADDRLEN      (128/8)
+#define LDNS_PORT	53
+#define LDNS_ROOT_LABEL_STR     "."
+#define LDNS_DEFAULT_TTL	3600
+
+/* lookup tables for standard DNS stuff  */
+
+/** Taken from RFC 2538, section 2.1.  */
+extern ldns_lookup_table ldns_certificate_types[];
+/** Taken from RFC 2535, section 7.  */
+extern ldns_lookup_table ldns_algorithms[];
+/** Taken from RFC 2538.  */
+extern ldns_lookup_table ldns_cert_algorithms[];
+/** rr types  */
+extern ldns_lookup_table ldns_rr_classes[];
+/** Response codes */
+extern ldns_lookup_table ldns_rcodes[];
+/** Operation codes */
+extern ldns_lookup_table ldns_opcodes[];
+/** EDNS flags */
+extern ldns_lookup_table ldns_edns_flags[];
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LDNS_DNS_H */