int rand ()
{
	return (int) __random ();
}

long int __random ()
{
	int32_t retval;
	__libc_lock_lock (lock);
	(void) __random_r (&unsafe_state, &retval);
	__libc_lock_unlock (lock);

	return retval;
}

int __random_r (buf, result)
	struct random_data *buf;
	int32_t *result;
{
	int32_t *state;

	if (buf == NULL || result == NULL)
	goto fail;

	state = buf->state;

	if (buf->rand_type == TYPE_0)
	{
		int32_t val = state[0];
		val = ((state[0] * 1103515245) + 12345) & 0x7fffffff; // hat ez tiszta xkcd :D
		state[0] = val;
		*result = val;
	}
	else
	{
		int32_t *fptr = buf->fptr;
		int32_t *rptr = buf->rptr;
		int32_t *end_ptr = buf->end_ptr;
		int32_t val;
	
		val = *fptr += *rptr;
		/* Chucking least random bit.  */
		*result = (val >> 1) & 0x7fffffff;
		++fptr;
		if (fptr >= end_ptr)
		{
			fptr = state;
			++rptr;
		}
		else
		{
			++rptr;
			if (rptr >= end_ptr)
			rptr = state;
		}
		buf->fptr = fptr;
		buf->rptr = rptr;
	}
	return 0;

	fail:
	__set_errno (EINVAL);
	return -1;
}