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#ifndef SOCKETIF_H
#define SOCKETIF_H

/*  Revsision 20220608
 *  - removed obsolete socket_local4() and socket_remote4()
 *  Revision 20210828, Erwin Hoffmann
 *  - added socket_accept4()
 *  Revision 20210226, Erwin Hoffmann
 *  - removed dependency on ipv4socket (loose coupling)
 *  - only single socket_tcp() and
 *  - single socket_udp() function serving both IPv4 + IPv6
 *  Revision 20181125, Erwin Hoffmann
 *  - switched to 'uint_t.h'
 *  - changed 'socket_tcp' --> 'socket_tcp4', 'socket_udp' --> 'socket_udp4'
 *  - added 'socket_ip6optionskill'
 *  - reordered and included backword compatible IPv6 calls
 *  - commented multicast socket declarations
 *  - enlarged usage for ipv4socket -> dual bind IPv4/IPv6
*/

#define __APPLE_USE_RFC_3542   /* MacOS Anycast support */

#include "uint_t.h"

/* IPv4 only */
extern int socket_accept4(int,char [4],uint16 *);
extern int socket_bind4(int,const char [4],uint16);
extern int socket_bind4_reuse(int,const char [4],uint16);
extern int socket_connect4(int,const char [4],uint16);
extern int socket_send4(int,const char *,unsigned int,const char [4],uint16);
extern int socket_broadcast(int,const char *,unsigned int,uint16);

/* Backward compatibility */
#define socket_local4 socket_local
#define socket_remote4 socket_remote

/* IPv6 only */
extern int socket_bind6(int,const char [16],uint16,uint32);
extern int socket_bind6_reuse(int,const char [16],uint16,uint32);
extern int socket_connect6(int,const char [16],uint16,uint32);
extern int socket_send6(int,const char *,unsigned int,const char [16],uint16,uint32);
extern const char* socket_getifname(uint32);
extern uint32 socket_getifidx(const char *);
extern int socket_ip6optionskill(int);
extern int socket_ip6anycast(int);

/* Common IPv4 & IPv6 */
extern int socket_accept(int,char [16],uint16 *,uint32 *);
extern int socket_bind(int,const char [16],uint16,uint32);
extern int socket_bind_reuse(int,const char [16],uint16,uint32);
extern int socket_connect(int,const char [16],uint16,uint32);
extern int socket_connected(int);
extern int socket_listen(int,int);
extern int socket_local(int,char [16],uint16 *,uint32 *);
extern int socket_recv(int,char *,unsigned int,char [16],uint16 *,uint32 *);
extern int socket_remote(int,char [16],uint16 *,uint32 *);
extern int socket_send(int,const char *,unsigned int,const char [16],uint16,uint32);
extern void socket_tryreservein(int,int);
extern int socket_ipoptionskill(int);
extern int socket_dualstack(int);
extern int socket_nodualstack(int);

/* Backward compatibility */
#define socket_accept6 socket_accept
#define socket_local6 socket_local
#define socket_recv6 socket_recv 
#define socket_remote6 socket_remote

/* TCP */
extern int socket_tcp4(void);
extern int socket_tcp6(void);
extern int socket_tcp(void);
extern int socket_tcpnodelay(int);

/* UDP */
extern int socket_udp4(void);
extern int socket_udp6(void);
extern int socket_udp(void);

/*********** For future use ***********************************/
/* enable sending udp packets to the broadcast address */
// extern int socket_broadcast(int);
/* join a multicast group on the given interface */
// extern int socket_mcjoin4(int,char *,char *);
// extern int socket_mcjoin6(int,char *,int);
/* leave a multicast group on the given interface */
// extern int socket_mcleave4(int,char *);
// extern int socket_mcleave6(int,char *);
/* set multicast TTL/hop count for outgoing packets */
// extern int socket_mcttl4(int,char);
// extern int socket_mcttl6(int,char);
/* enable multicast loopback */
// extern int socket_mcloop4(int,char);
// extern int socket_mcloop6(int,char);
/**************************************************************/

#endif