rad_continue_send_request
return rad_continue_send_request(h, 0, fd, tv);
n = rad_continue_send_request(h, n, &fd, &tv);
int rad_continue_send_request(struct rad_handle *, int,
if ((got = rad_continue_send_request(r->cx.rad, sel, &r->cx.fd, &tv)) == 0) {