rad_send_request(struct rad_handle *h)
{
	struct timeval timelimit;
	struct timeval tv;
	int fd;
	int n;

	n = rad_init_send_request(h, &fd, &tv);

	if (n != 0)
		return n;

	gettimeofday(&timelimit, NULL);
	timeradd(&tv, &timelimit, &timelimit);

	for ( ; ; ) {
		fd_set readfds;

		FD_ZERO(&readfds);
		FD_SET(fd, &readfds);

		n = select(fd + 1, &readfds, NULL, NULL, &tv);

		if (n == -1) {
			generr(h, "select: %s", strerror(errno));
			return -1;
		}

		if (!FD_ISSET(fd, &readfds)) {
			/* Compute a new timeout */
			gettimeofday(&tv, NULL);
			timersub(&timelimit, &tv, &tv);
			if (tv.tv_sec > 0 || (tv.tv_sec == 0 && tv.tv_usec > 0))
				/* Continue the select */
				continue;
		}

		n = rad_continue_send_request(h, n, &fd, &tv);

		if (n != 0)
			return n;

		gettimeofday(&timelimit, NULL);
		timeradd(&tv, &timelimit, &timelimit);
	}
}
rad_send_request(struct rad_handle *h)
{
	struct timeval timelimit;
	struct timeval tv;
	int fd;
	int n;

	n = rad_init_send_request(h, &fd, &tv);

	if (n != 0)
		return n;

	gettimeofday(&timelimit, NULL);
	timeradd(&tv, &timelimit, &timelimit);

	for ( ; ; ) {
		fd_set readfds;

		FD_ZERO(&readfds);
		FD_SET(fd, &readfds);

		n = select(fd + 1, &readfds, NULL, NULL, &tv);

		if (n == -1) {
			generr(h, "select: %s", strerror(errno));
			return -1;
		}

		if (!FD_ISSET(fd, &readfds)) {
			 
			gettimeofday(&tv, NULL);
			timersub(&timelimit, &tv, &tv);
			if (tv.tv_sec > 0 || (tv.tv_sec == 0 && tv.tv_usec > 0))
				 
				continue;
		}

		n = rad_continue_send_request(h, n, &fd, &tv);

		if (n != 0)
			return n;

		gettimeofday(&timelimit, NULL);
		timeradd(&tv, &timelimit, &timelimit);
	}
}