AF_INET AF_INET6 AF_SUPPORTED AF_UNSPEC fnet_address_family_t FNET_HTONL fnet_htonl FNET_HTONS fnet_htons fnet_inet_aton fnet_inet_ntoa fnet_inet_ntop fnet_inet_pton fnet_inet_ptos FNET_IP4_ADDR_INIT FNET_IP4_ADDR_STR_SIZE fnet_ip4_addr_t FNET_IP6_ADDR_STR_SIZE FNET_IP_ADDR_STR_SIZE fnet_msg_flags_t FNET_NTOHL fnet_ntohl FNET_NTOHS fnet_ntohs fnet_protocol_t FNET_SA_DATA_SIZE fnet_scope_id_t fnet_sd_flags_t fnet_socket fnet_socket_accept fnet_socket_addr_are_equal fnet_socket_addr_is_multicast fnet_socket_addr_is_unspecified fnet_socket_bind fnet_socket_close fnet_socket_connect fnet_socket_getname fnet_socket_getopt fnet_socket_getpeername fnet_socket_listen fnet_socket_options_t fnet_socket_recv fnet_socket_recvfrom fnet_socket_send fnet_socket_sendto fnet_socket_set_callback_on_rx fnet_socket_setopt fnet_socket_shutdown fnet_socket_state_t fnet_socket_t fnet_socket_type_t INADDR_ANY INADDR_BROADCAST

fnet_return_t fnet_socket_getopt ( fnet_socket_t  s, fnet_protocol_t  level, fnet_socket_options_t  optname, void *  optval, fnet_size_t *  optvallen  ) Gets a socket option. Parameters s Descriptor identifying a socket. level Level, at which the option is defined. The supported levels are the SOL_SOCKET, IPPROTO_IP, IPPROTO_IPV6 or IPPROTO_TCP. optname Socket option, for which the value is to be retrievied. optval Pointer to a buffer in which the value for the requested option has to be returned. optvallen Pointer to the size of the optval buffer. Returns This function returns: FNET_OK if no error occurs. FNET_ERR if an error occurs. The specific error code can be retrieved using the fnet_error_get(). See also fnet_socket_setopt() This function retrieves the current value for a socket option associated with the socket s, and stores the result in the optval. The various socket options are described by the fnet_socket_options_t.