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#ifndef foopublishhfoo
#define foopublishhfoo
/* $Id$ */
/***
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 core/publish.h Functions for publising local services and RRs */
/** \example core-publish-service.c Example how to register a DNS-SD
* service using an embedded mDNS stack. It behaves like a network
* printer registering both an IPP and a BSD LPR service. */
/** A group of locally registered DNS RRs */
typedef struct AvahiSEntryGroup AvahiSEntryGroup;
#include <avahi-common/cdecl.h>
#include <avahi-core/core.h>
AVAHI_C_DECL_BEGIN
/** Prototype for callback functions which are called whenever the state of an AvahiSEntryGroup object changes */
typedef void (*AvahiSEntryGroupCallback) (AvahiServer *s, AvahiSEntryGroup *g, AvahiEntryGroupState state, void* userdata);
/** Iterate through all local entries of the server. (when g is NULL)
* or of a specified entry group. At the first call state should point
* to a NULL initialized void pointer, That pointer is used to track
* the current iteration. It is not safe to call any other
* avahi_server_xxx() function during the iteration. If the last entry
* has been read, NULL is returned. */
const AvahiRecord *avahi_server_iterate(AvahiServer *s, AvahiSEntryGroup *g, void **state);
/** Create a new entry group. The specified callback function is
* called whenever the state of the group changes. Use entry group
* objects to keep track of you RRs. Add new RRs to a group using
* avahi_server_add_xxx(). Make sure to call avahi_s_entry_group_commit()
* to start the registration process for your RRs */
AvahiSEntryGroup *avahi_s_entry_group_new(AvahiServer *s, AvahiSEntryGroupCallback callback, void* userdata);
/** Free an entry group. All RRs assigned to the group are removed from the server */
void avahi_s_entry_group_free(AvahiSEntryGroup *g);
/** Commit an entry group. This starts the probing and registration process for all RRs in the group */
int avahi_s_entry_group_commit(AvahiSEntryGroup *g);
/** Remove all entries from the entry group and reset the state to AVAHI_ENTRY_GROUP_UNCOMMITED. */
void avahi_s_entry_group_reset(AvahiSEntryGroup *g);
/** Return 1 if the entry group is empty, i.e. has no records attached. */
int avahi_s_entry_group_is_empty(AvahiSEntryGroup *g);
/** Return the current state of the specified entry group */
AvahiEntryGroupState avahi_s_entry_group_get_state(AvahiSEntryGroup *g);
/** Change the opaque user data pointer attached to an entry group object */
void avahi_s_entry_group_set_data(AvahiSEntryGroup *g, void* userdata);
/** Return the opaque user data pointer currently set for the entry group object */
void* avahi_s_entry_group_get_data(AvahiSEntryGroup *g);
/** Add a new resource record to the server. Returns 0 on success, negative otherwise. */
int avahi_server_add(
AvahiServer *s, /**< The server object to add this record to */
AvahiSEntryGroup *g, /**< An entry group object if this new record shall be attached to one, or NULL. If you plan to remove the record sometime later you a required to pass an entry group object here. */
AvahiIfIndex interface, /**< A numeric index of a network interface to attach this record to, or AVAHI_IF_UNSPEC to attach this record to all interfaces */
AvahiProtocol protocol, /**< A protocol family to attach this record to. One of the AVAHI_PROTO_xxx constants. Use AVAHI_PROTO_UNSPEC to make this record available on all protocols (wich means on both IPv4 and IPv6). */
AvahiPublishFlags flags, /**< Special flags for this record */
AvahiRecord *r /**< The record to add. This function increases the reference counter of this object. */);
/** Add an IP address mapping to the server. This will add both the
* host-name-to-address and the reverse mapping to the server. See
* avahi_server_add() for more information. If adding one of the RRs
* fails, the function returns with an error, but it is not defined if
* the other RR is deleted from the server or not. Therefore, you have
* to free the AvahiSEntryGroup and create a new one before
* proceeding. */
int avahi_server_add_address(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *name,
AvahiAddress *a);
/** Add an DNS-SD service to the Server. This will add all required
* RRs to the server. See avahi_server_add() for more information. If
* adding one of the RRs fails, the function returns with an error,
* but it is not defined if the other RR is deleted from the server or
* not. Therefore, you have to free the AvahiSEntryGroup and create a
* new one before proceeding. */
int avahi_server_add_service(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *name, /**< Service name, e.g. "Lennart's Files" */
const char *type, /**< DNS-SD type, e.g. "_http._tcp" */
const char *domain,
const char *host, /**< Host name where this servcie resides, or NULL if on the local host */
uint16_t port, /**< Port number of the service */
... /**< Text records, terminated by NULL */) AVAHI_GCC_SENTINEL;
/** Mostly identical to avahi_server_add_service(), but takes an AvahiStringList object for the TXT records. The AvahiStringList object is copied. */
int avahi_server_add_service_strlst(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *name,
const char *type,
const char *domain,
const char *host,
uint16_t port,
AvahiStringList *strlst);
/** Add a subtype for an already existing service */
int avahi_server_add_service_subtype(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *name, /**< Specify the name of main service you already added here */
const char *type, /**< Specify the main type of the service you already added here */
const char *domain, /**< Specify the main type of the service you already added here */
const char *subtype /**< The new subtype for the specified service */ );
/** Update the TXT record for a service with the data from the specified string list */
int avahi_server_update_service_txt_strlst(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *name,
const char *type,
const char *domain,
AvahiStringList *strlst);
/** Update the TXT record for a service with the NULL termonate list of strings */
int avahi_server_update_service_txt(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *name,
const char *type,
const char *domain,
...) AVAHI_GCC_SENTINEL;
/** Check if there is a service locally defined and return the entry group it is attached to. Returns NULL if the service isn't local*/
int avahi_server_get_group_of_service(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, const char *name, const char *type, const char *domain, AvahiSEntryGroup** ret_group);
AVAHI_C_DECL_END
#endif
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