/**

 * @file dnssrv.h

 */

/* purple

 *

 * Copyright (C) 2005, Thomas Butter <butter@uni-mannheim.de>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA

 */

#ifndef _PURPLE_DNSSRV_H

#define _PURPLE_DNSSRV_H

#ifdef __cplusplus

extern "C" {

#endif

typedef struct _PurpleSrvQueryData PurpleSrvQueryData;

typedef struct _PurpleSrvResponse PurpleSrvResponse;

typedef struct _PurpleTxtResponse PurpleTxtResponse;

#include <glib.h>

struct _PurpleSrvResponse {

	char hostname[256];

	int port;

	int weight;

	int pref;

};

/**

 * @param resp An array of PurpleSrvResponse of size results.  The array

 *        is sorted based on the order described in the DNS SRV RFC.

 *        Users of this API should try each record in resp in order,

 *        starting at the beginning.

 */

typedef void (*PurpleSrvCallback)(PurpleSrvResponse *resp, int results, gpointer data);

/**

 * Callback that returns the data retrieved from a DNS TXT lookup.

 *

 * @param responses   A GList of PurpleTxtResponse objects.

 * @param data        The extra data passed to purple_txt_resolve.

 */

typedef void (*PurpleTxtCallback)(GList *responses, gpointer data);

/**

 * Queries an SRV record.

 *

 * @param protocol Name of the protocol (e.g. "sip")

 * @param transport Name of the transport ("tcp" or "udp")

 * @param domain Domain name to query (e.g. "blubb.com")

 * @param cb A callback which will be called with the results

 * @param extradata Extra data to be passed to the callback

 */

PurpleSrvQueryData *purple_srv_resolve(const char *protocol, const char *transport, const char *domain, PurpleSrvCallback cb, gpointer extradata);

/**

 * Cancel an SRV DNS query.

 *

 * @param query_data The request to cancel.

 */

void purple_srv_cancel(PurpleSrvQueryData *query_data);

/**

 * Queries an TXT record.

 *

 * @param owner Name of the protocol (e.g. "_xmppconnect")

 * @param domain Domain name to query (e.g. "blubb.com")

 * @param cb A callback which will be called with the results

 * @param extradata Extra data to be passed to the callback

 *

 * @since 2.6.0

 */

PurpleSrvQueryData *purple_txt_resolve(const char *owner, const char *domain, PurpleTxtCallback cb, gpointer extradata);

/**

 * Cancel an TXT DNS query.

 *

 * @param query_data The request to cancel.

 * @since 2.6.0

 */

void purple_txt_cancel(PurpleSrvQueryData *query_data);

/**

 * Get the value of the current TXT record.

 *

 * @param resp  The TXT response record

 * @returns The value of the current TXT record.

 * @since 2.6.0

 */

const gchar *purple_txt_response_get_content(PurpleTxtResponse *resp);

/**

 * Destroy a TXT DNS response object.

 *

 * @param response The PurpleTxtResponse to destroy.

 * @since 2.6.0

 */

void purple_txt_response_destroy(PurpleTxtResponse *resp);

#ifdef __cplusplus

}

#endif

#endif /* _PURPLE_DNSSRV_H */