stun.h

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/* 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., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
 */
#ifndef _PURPLE_STUN_H_
#define _PURPLE_STUN_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
/**************************************************************************/
/**************************************************************************/
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 *);
 
PurpleStunNatDiscovery *purple_stun_discover(StunCallback cb);
 
void purple_stun_init(void);
 
#ifdef __cplusplus
}
#endif
 
#endif /* _PURPLE_STUN_H_ */