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author | Florian Weimer <fweimer@redhat.com> | 2017-10-20 04:10:15 +0200 |
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committer | Florian Weimer <fweimer@redhat.com> | 2017-10-20 04:10:15 +0200 |
commit | 63b4baa44e8d22501c433c4093aa3310f91b6aa2 (patch) | |
tree | 2a8a738beec1d6587adb9a36fea810be2adb4e0c /sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c | |
parent | 95ccb619f553c130dde7b51098d69132547f8a90 (diff) | |
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sysconf: Fix missing definition of UIO_MAXIOV on Linux [BZ #22321]
After commit 37f802f86400684c8d13403958b2c598721d6360 (Remove
__need_IOV_MAX and __need_FOPEN_MAX), UIO_MAXIOV is no longer supplied
(indirectly) through <bits/stdio_lim.h>, so sysdeps/posix/sysconf.c no
longer sees the definition.
Diffstat (limited to 'sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c b/sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c new file mode 100644 index 0000000000..dfdf3da484 --- /dev/null +++ b/sysdeps/unix/sysv/linux/tst-sysconf-iov_max.c @@ -0,0 +1,40 @@ +/* Check IOV_MAX definition for consistency (bug 22321). + Copyright (C) 2017 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 + <http://www.gnu.org/licenses/>. */ + +/* Defined in tst-sysconf-iov_max-uapi.c. */ +long uio_maxiov_value (void); + + +#include <limits.h> +#include <support/check.h> +#include <sys/uio.h> +#include <unistd.h> + +static int +do_test (void) +{ + TEST_VERIFY (_XOPEN_IOV_MAX == 16); /* Value required by POSIX. */ + TEST_VERIFY (uio_maxiov_value () >= _XOPEN_IOV_MAX); + TEST_VERIFY (IOV_MAX == uio_maxiov_value ()); + TEST_VERIFY (UIO_MAXIOV == uio_maxiov_value ()); + TEST_VERIFY (sysconf (_SC_UIO_MAXIOV) == uio_maxiov_value ()); + TEST_VERIFY (sysconf (_SC_IOV_MAX) == uio_maxiov_value ()); + return 0; +} + +#include <support/test-driver.c> |