+#ifdef F_SETFD
+ /* Test F_SETFD on invalid file descriptors. */
+ errno = 0;
+ ASSERT (fcntl (-1, F_SETFD, 0) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (fd + 1, F_SETFD, 0) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (bad_fd, F_SETFD, 0) == -1);
+ ASSERT (errno == EBADF);
+#endif
+
+#ifdef F_GETFL
+ /* Test F_GETFL on invalid file descriptors. */
+ errno = 0;
+ ASSERT (fcntl (-1, F_GETFL) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (fd + 1, F_GETFL) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (bad_fd, F_GETFL) == -1);
+ ASSERT (errno == EBADF);
+#endif
+
+#ifdef F_SETFL
+ /* Test F_SETFL on invalid file descriptors. */
+ errno = 0;
+ ASSERT (fcntl (-1, F_SETFL, 0) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (fd + 1, F_SETFL, 0) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (bad_fd, F_SETFL, 0) == -1);
+ ASSERT (errno == EBADF);
+#endif
+
+#ifdef F_GETOWN
+ /* Test F_GETOWN on invalid file descriptors. */
+ errno = 0;
+ ASSERT (fcntl (-1, F_GETOWN) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (fd + 1, F_GETOWN) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (bad_fd, F_GETOWN) == -1);
+ ASSERT (errno == EBADF);
+#endif
+
+#ifdef F_SETOWN
+ /* Test F_SETFL on invalid file descriptors. */
+ errno = 0;
+ ASSERT (fcntl (-1, F_SETOWN, 0) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (fd + 1, F_SETOWN, 0) == -1);
+ ASSERT (errno == EBADF);
+ errno = 0;
+ ASSERT (fcntl (bad_fd, F_SETOWN, 0) == -1);
+ ASSERT (errno == EBADF);
+#endif
+