void livesync_bind_mcast( ot_ip6 ip, uint16_t port) {
char tmpip[4] = {0,0,0,0};
char *v4ip;
if( !ip6_isv4mapped(ip))
exerr("v6 mcast support not yet available.");
v4ip = ip+12;
if( g_socket_in != -1 )
exerr("Error: Livesync listen ip specified twice.");
if( ( g_socket_in = socket_udp4( )) < 0)
exerr("Error: Cant create live sync incoming socket." );
ndelay_off(g_socket_in);
if( socket_bind4_reuse( g_socket_in, tmpip, port ) == -1 )
exerr("Error: Cant bind live sync incoming socket." );
if( socket_mcjoin4( g_socket_in, groupip_1, v4ip ) )
exerr("Error: Cant make live sync incoming socket join mcast group.");
if( ( g_socket_out = socket_udp4()) < 0)
exerr("Error: Cant create live sync outgoing socket." );
if( socket_bind4_reuse( g_socket_out, v4ip, port ) == -1 )
exerr("Error: Cant bind live sync outgoing socket." );
socket_mcttl4(g_socket_out, 1);
socket_mcloop4(g_socket_out, 0);
}
static void ot_try_bind( char ip[4], uint16 port, int is_tcp ) {
int64 s = is_tcp ? socket_tcp4( ) : socket_udp4();
if( socket_bind4_reuse( s, ip, port ) == -1 )
panic( "socket_bind4_reuse" );
if( is_tcp && ( socket_listen( s, SOMAXCONN) == -1 ) )
panic( "socket_listen" );
if( !io_fd( s ) )
panic( "io_fd" );
io_setcookie( s, is_tcp ? FLAG_TCP : FLAG_UDP );
io_wantread( s );
}
