--- /dev/null
+#ifndef foorrhfoo
+#define foorrhfoo
+
+/***
+ This file is part of avahi.
+
+ avahi is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ avahi 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 Lesser General
+ Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with avahi; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+/** \file rr.h Functions and definitions for manipulating DNS resource record (RR) data. */
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include <avahi/strlst.h>
+#include <avahi/address.h>
+#include <avahi/cdecl.h>
+
+AVAHI_C_DECL_BEGIN
+
+/** DNS record types, see RFC 1035, in addition to those defined in defs.h */
+enum {
+ AVAHI_DNS_TYPE_ANY = 0xFF, /**< Special query type for requesting all records */
+ AVAHI_DNS_TYPE_OPT = 41, /**< EDNS0 option */
+ AVAHI_DNS_TYPE_TKEY = 249,
+ AVAHI_DNS_TYPE_TSIG = 250,
+ AVAHI_DNS_TYPE_IXFR = 251,
+ AVAHI_DNS_TYPE_AXFR = 252
+};
+
+/** DNS record classes, see RFC 1035, in addition to those defined in defs.h */
+enum {
+ AVAHI_DNS_CLASS_ANY = 0xFF, /**< Special query type for requesting all records */
+ AVAHI_DNS_CACHE_FLUSH = 0x8000, /**< Not really a class but a bit which may be set in response packets, see mDNS spec for more information */
+ AVAHI_DNS_UNICAST_RESPONSE = 0x8000 /**< Not really a class but a bit which may be set in query packets, see mDNS spec for more information */
+};
+
+/** Encapsulates a DNS query key consisting of class, type and
+ name. Use avahi_key_ref()/avahi_key_unref() for manipulating the
+ reference counter. The structure is intended to be treated as "immutable", no
+ changes should be imposed after creation */
+typedef struct AvahiKey {
+ int ref; /**< Reference counter */
+ char *name; /**< Record name */
+ uint16_t clazz; /**< Record class, one of the AVAHI_DNS_CLASS_xxx constants */
+ uint16_t type; /**< Record type, one of the AVAHI_DNS_TYPE_xxx constants */
+} AvahiKey;
+
+/** Encapsulates a DNS resource record. The structure is intended to
+ * be treated as "immutable", no changes should be imposed after
+ * creation. */
+typedef struct AvahiRecord {
+ int ref; /**< Reference counter */
+ AvahiKey *key; /**< Reference to the query key of this record */
+
+ uint32_t ttl; /**< DNS TTL of this record */
+
+ union {
+
+ struct {
+ void* data;
+ uint16_t size;
+ } generic; /**< Generic record data for unknown types */
+
+ struct {
+ uint16_t priority;
+ uint16_t weight;
+ uint16_t port;
+ char *name;
+ } srv; /**< Data for SRV records */
+
+ struct {
+ char *name;
+ } ptr, ns, cname; /**< Data for PTR, NS and CNAME records */
+
+ struct {
+ char *cpu;
+ char *os;
+ } hinfo; /**< Data for HINFO records */
+
+ struct {
+ AvahiStringList *string_list;
+ } txt; /**< Data for TXT records */
+
+ struct {
+ AvahiIPv4Address address;
+ } a; /**< Data for A records */
+
+ struct {
+ AvahiIPv6Address address;
+ } aaaa; /**< Data for AAAA records */
+
+ } data; /**< Record data */
+
+} AvahiRecord;
+
+/** Create a new AvahiKey object. The reference counter will be set to 1. */
+AvahiKey *avahi_key_new(const char *name, uint16_t clazz, uint16_t type);
+
+/** Increase the reference counter of an AvahiKey object by one */
+AvahiKey *avahi_key_ref(AvahiKey *k);
+
+/** Decrease the reference counter of an AvahiKey object by one */
+void avahi_key_unref(AvahiKey *k);
+
+/** Check whether two AvahiKey object contain the same
+ * data. AVAHI_DNS_CLASS_ANY/AVAHI_DNS_TYPE_ANY are treated like any
+ * other class/type. */
+int avahi_key_equal(const AvahiKey *a, const AvahiKey *b);
+
+/** Return a numeric hash value for a key for usage in hash tables. */
+unsigned avahi_key_hash(const AvahiKey *k);
+
+/** Create a new record object. Record data should be filled in right after creation. The reference counter is set to 1. */
+AvahiRecord *avahi_record_new(AvahiKey *k, uint32_t ttl);
+
+/** Create a new record object. Record data should be filled in right after creation. The reference counter is set to 1. */
+AvahiRecord *avahi_record_new_full(const char *name, uint16_t clazz, uint16_t type, uint32_t ttl);
+
+/** Increase the reference counter of an AvahiRecord by one. */
+AvahiRecord *avahi_record_ref(AvahiRecord *r);
+
+/** Decrease the reference counter of an AvahiRecord by one. */
+void avahi_record_unref(AvahiRecord *r);
+
+/** Return a textual representation of the specified DNS class. The
+ * returned pointer points to a read only internal string. */
+const char *avahi_dns_class_to_string(uint16_t clazz);
+
+/** Return a textual representation of the specified DNS class. The
+ * returned pointer points to a read only internal string. */
+const char *avahi_dns_type_to_string(uint16_t type);
+
+/** Create a textual representation of the specified key. avahi_free() the
+ * result! */
+char *avahi_key_to_string(const AvahiKey *k);
+
+/** Create a textual representation of the specified record, similar
+ * in style to BIND zone file data. avahi_free() the result! */
+char *avahi_record_to_string(const AvahiRecord *r);
+
+/** Check whether two records are equal (regardless of the TTL */
+int avahi_record_equal_no_ttl(const AvahiRecord *a, const AvahiRecord *b);
+
+/** Check whether the specified key is valid */
+int avahi_key_is_valid(AvahiKey *k);
+
+/** Check whether the specified record is valid */
+int avahi_record_is_valid(AvahiRecord *r);
+
+/** Parse a binary rdata object and fill it into *record. This function is actually implemented in dns.c */
+int avahi_rdata_parse(AvahiRecord *record, const void* rdata, size_t size);
+
+/** Serialize an AvahiRecord object into binary rdata. This function is actually implemented in dns.c */
+size_t avahi_rdata_serialize(AvahiRecord *record, void *rdata, size_t max_size);
+
+/** Return TRUE if the AvahiRecord object is a link-local A or AAAA address */
+int avahi_record_is_link_local_address(const AvahiRecord *r);
+
+AVAHI_C_DECL_END
+
+#endif
projects / catta / blobdiff