typedef struct ip46_s ip46, *ip46_ref ;
struct ip46_s
{
  char ip[4] ;
} ;
#define IP46_ZERO { .ip = "\0\0\0" }

#undef SKALIBS_IPV6_ENABLED
#define SKALIBS_IP_SIZE 4
#define ip46_is6(ip) 0
#define ip46_fmt(s, i) ip4_fmt(s, (i)->ip)
#define ip46_scan(s, i) ip4_scan(s, (i)->ip)
#define ip46_scanlist(out, max, s, num) ip4_scanlist((out)->ip, max, s, num)
#define ip46_from_ip4(i, ip4) (memmove((i)->ip, (ip4), 4), 1)
#define ip46_from_ip6(i, ip6) (errno = ENOSYS, 0)

#define socket_connect46(s, i, port) socket_connect4(s, (i)->ip, port)
#define socket_bind46(s, i, port) socket_bind4(s, (i)->ip, port)
#define socket_bind46_reuse(s, i, port) socket_bind4_reuse(s, (i)->ip, port)

#define socket_tcp46(h) socket_tcp4()
#define socket_tcp46_b(h) socket_tcp4_b()
#define socket_tcp46_nb(h) socket_tcp4_nb()
#define socket_tcp46_coe(h) socket_tcp4_coe()
#define socket_tcp46_nbcoe(h) socket_tcp4_nbcoe()
#define socket_tcp46_internal(h, flags) socket_tcp4_internal(flags)

#define socket_udp46(h) socket_udp4()
#define socket_udp46_b(h) socket_udp4_b()
#define socket_udp46_nb(h) socket_udp4_nb()
#define socket_udp46_coe(h) socket_udp4_coe()
#define socket_udp46_nbcoe(h) socket_udp4_nbcoe()
#define socket_udp46_internal(h, flags) socket_udp4_internal(flags)

#define socket_send46(fd, s, len, i, port) socket_send4(fd, s, len, (i)->ip, port)
#define socket_local46(fd, i, port) socket_local4(fd, (i)->ip, port)
#define socket_remote46(fd, i, port) socket_remote4(fd, (i)->ip, port)

#define socket_sendnb46(fd, buf, len, i, port, deadline, stamp) socket_sendnb4(fd, buf, len, (i)->ip, port, deadline, stamp)
