sf_ext_accept Your function for handling inbound connections at accept time. May be null. See AlsoFieldssf_handlesf_flagssf_namesf_unregisteredsf_attachsf_detachsf_notifysf_data_insf_data_outsf_connect_insf_connect_outsf_bindsf_setoptionsf_getoptionsf_listensf_ioctlsf_lensf_ext_rsvd