se_ctrladdr
if (bind(sep->se_fd, (struct sockaddr *)&sep->se_ctrladdr,
(struct sockaddr*)&sep->se_ctrladdr, &len) < 0){
nbuf.buf = &sep->se_ctrladdr;
nbuf.len = sep->se_ctrladdr.sa_len;
memset(&sep->se_ctrladdr, 0, sizeof(sep->se_ctrladdr));