misc: Add time64 alias for ioctl

Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/misc/tst-ioctl.c b/misc/tst-ioctl.c
new file mode 100644
index 0000000000..a09b8ae836
--- /dev/null
+++ b/misc/tst-ioctl.c
@@ -0,0 +1,41 @@
+/* Smoke test for ioctl.
+   Copyright (C) 2021 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+
+static int
+do_test (void)
+{
+  int pair[2];
+  TEST_COMPARE (socketpair (AF_UNIX, SOCK_STREAM, 0, pair), 0);
+  TEST_COMPARE (write (pair[0], "buffer", sizeof ("buffer")),
+                sizeof ("buffer"));
+  int value;
+  TEST_COMPARE (ioctl (pair[1], FIONREAD, &value), 0);
+  TEST_COMPARE (value, sizeof ("buffer"));
+  TEST_COMPARE (ioctl (pair[0], FIONREAD, &value), 0);
+  TEST_COMPARE (value, 0);
+  xclose (pair[0]);
+  xclose (pair[1]);
+  return 0;
+}
+
+#include <support/test-driver.c>