diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/socket.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/lib/socket.h b/lib/socket.h index c642bdf9..d3fd7450 100644 --- a/lib/socket.h +++ b/lib/socket.h @@ -83,18 +83,23 @@ sk_send_buffer_empty(sock *sk) #define SK_TCP_PASSIVE 0 /* ? * - - - ? - */ #define SK_TCP_ACTIVE 1 /* ? ? * * - ? - */ #define SK_TCP 2 -#define SK_UDP 3 /* ? ? - - - ? ? */ -#define SK_IP 5 /* ? - - * - ? ? */ +#define SK_UDP 3 /* ? ? ? ? ? ? ? */ +#define SK_IP 5 /* ? - ? * ? ? ? */ #define SK_MAGIC 7 /* Internal use by sysdep code */ #define SK_UNIX_PASSIVE 8 #define SK_UNIX 9 /* - * Multicast sockets are slightly different from the other ones: - * If you want to send packets only, just set the destination - * address to the corresponding multicast group and iface to - * the interface to be used. If you also want receiving, set - * source address to the same multicast group as well. + * For SK_UDP or SK_IP sockets setting DA/DP allows to use sk_send(), + * otherwise sk_send_to() must be used. + * + * For SK_IP sockets setting DP specifies protocol number, which is used + * for both receiving and sending. + * + * For multicast on SK_UDP or SK_IP sockets set IF and TTL, + * call sk_setup_multicast() to enable multicast on that socket, + * and then use sk_join_group() and sk_leave_group() to manage + * a set of received multicast groups. */ #endif |