1 | /* Check IOV_MAX definition for consistency (bug 22321). |
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2 | Copyright (C) 2017-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
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. |
9 | |
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. |
14 | |
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 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | /* Defined in tst-sysconf-iov_max-uapi.c. */ |
20 | long uio_maxiov_value (void); |
21 | |
22 | |
23 | #include <limits.h> |
24 | #include <support/check.h> |
25 | #include <sys/uio.h> |
26 | #include <unistd.h> |
27 | |
28 | static int |
29 | do_test (void) |
30 | { |
31 | TEST_VERIFY (_XOPEN_IOV_MAX == 16); /* Value required by POSIX. */ |
32 | TEST_VERIFY (uio_maxiov_value () >= _XOPEN_IOV_MAX); |
33 | TEST_VERIFY (IOV_MAX == uio_maxiov_value ()); |
34 | TEST_VERIFY (UIO_MAXIOV == uio_maxiov_value ()); |
35 | TEST_VERIFY (sysconf (_SC_UIO_MAXIOV) == uio_maxiov_value ()); |
36 | TEST_VERIFY (sysconf (_SC_IOV_MAX) == uio_maxiov_value ()); |
37 | return 0; |
38 | } |
39 | |
40 | #include <support/test-driver.c> |
41 |