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63b4baa4 | 1 | /* Check IOV_MAX definition for consistency (bug 22321). |
688903eb | 2 | Copyright (C) 2017-2018 Free Software Foundation, Inc. |
63b4baa4 FW |
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 | <http://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> |