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- /**
- * @file stun.h STUN API
- * @ingroup core
- *
- * purple
- *
- * Purple is the legal property of its developers, whose names are too numerous
- * to list here. Please refer to the COPYRIGHT file distributed with this
- * source distribution.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #ifndef _PURPLE_STUN_H_
- #define _PURPLE_STUN_H_
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- /**************************************************************************/
- /** @name STUN API */
- /**************************************************************************/
- /*@{*/
-
- typedef struct _PurpleStunNatDiscovery PurpleStunNatDiscovery;
-
- typedef enum {
- PURPLE_STUN_STATUS_UNDISCOVERED = -1,
- PURPLE_STUN_STATUS_UNKNOWN, /* no STUN server reachable */
- PURPLE_STUN_STATUS_DISCOVERING,
- PURPLE_STUN_STATUS_DISCOVERED
- } PurpleStunStatus;
-
- typedef enum {
- PURPLE_STUN_NAT_TYPE_PUBLIC_IP,
- PURPLE_STUN_NAT_TYPE_UNKNOWN_NAT,
- PURPLE_STUN_NAT_TYPE_FULL_CONE,
- PURPLE_STUN_NAT_TYPE_RESTRICTED_CONE,
- PURPLE_STUN_NAT_TYPE_PORT_RESTRICTED_CONE,
- PURPLE_STUN_NAT_TYPE_SYMMETRIC
- } PurpleStunNatType;
-
- struct _PurpleStunNatDiscovery {
- PurpleStunStatus status;
- PurpleStunNatType type;
- char publicip[16];
- char *servername;
- time_t lookup_time;
- };
-
- typedef void (*StunCallback) (PurpleStunNatDiscovery *);
-
- /**
- * Starts a NAT discovery. It returns a PurpleStunNatDiscovery if the discovery
- * is already done. Otherwise the callback is called when the discovery is over
- * and NULL is returned.
- *
- * @param cb The callback to call when the STUN discovery is finished if the
- * discovery would block. If the discovery is done, this is NOT
- * called.
- *
- * @return a PurpleStunNatDiscovery which includes the public IP and the type
- * of NAT or NULL is discovery would block
- */
- PurpleStunNatDiscovery *purple_stun_discover(StunCallback cb);
-
- void purple_stun_init(void);
-
- /*@}*/
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif /* _PURPLE_STUN_H_ */
-