1 /* Common function for preadv2 and pwritev2 tests.
2 Copyright (C) 2017 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
20 #include <support/check.h>
23 do_test_with_invalid_flags (void)
25 #define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT)
26 /* Set the next bit from the mask of all supported flags. */
27 int invalid_flag
= __builtin_clz (RWF_SUPPORTED
);
28 invalid_flag
= 0x1 << ((sizeof (int) * CHAR_BIT
) - invalid_flag
);
31 const struct iovec vec
= { .iov_base
= buf
, .iov_len
= sizeof (buf
) };
32 if (preadv2 (temp_fd
, &vec
, 1, 0, invalid_flag
) != -1)
33 FAIL_EXIT1 ("preadv2 did not fail with an invalid flag");
35 FAIL_EXIT1 ("preadv2 failure did not set errno to ENOTSUP (%d)", errno
);
37 /* This might fail for compat syscall (32 bits running on 64 bits kernel)
38 due a kernel issue. */
39 if (pwritev2 (temp_fd
, &vec
, 1, 0, invalid_flag
) != -1)
40 FAIL_EXIT1 ("pwritev2 did not fail with an invalid flag");
42 FAIL_EXIT1 ("pwritev2 failure did not set errno to ENOTSUP (%d)", errno
);