mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
18ad0de651
Commit 7a16bdbb9f uses IOV_MAX, which is not defined on hurd.
Checked on a build for i686-gnu.
* misc/tst-preadvwritev2-common.c (IOV_MAX): Define if not
defined.
124 lines
4.1 KiB
C
124 lines
4.1 KiB
C
/* Common function for preadv2 and pwritev2 tests.
|
|
Copyright (C) 2017-2018 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/>. */
|
|
|
|
#include <limits.h>
|
|
#include <support/check.h>
|
|
|
|
#ifndef RWF_HIPRI
|
|
# define RWF_HIPRI 0
|
|
#endif
|
|
#ifndef RWF_DSYNC
|
|
# define RWF_DSYNC 0
|
|
#endif
|
|
#ifndef RWF_SYNC
|
|
# define RWF_SYNC 0
|
|
#endif
|
|
#ifndef RWF_NOWAIT
|
|
# define RWF_NOWAIT 0
|
|
#endif
|
|
#ifndef RWF_APPEND
|
|
# define RWF_APPEND 0
|
|
#endif
|
|
#define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT \
|
|
| RWF_APPEND)
|
|
|
|
/* Generic uio_lim.h does not define IOV_MAX. */
|
|
#ifndef IOV_MAX
|
|
# define IOV_MAX 1024
|
|
#endif
|
|
|
|
static void
|
|
do_test_with_invalid_fd (void)
|
|
{
|
|
char buf[256];
|
|
struct iovec iov = { buf, sizeof buf };
|
|
|
|
/* Check with flag being 0 to use the fallback code which calls pwritev
|
|
or writev. */
|
|
TEST_VERIFY (preadv2 (-1, &iov, 1, -1, 0) == -1);
|
|
TEST_COMPARE (errno, EBADF);
|
|
TEST_VERIFY (pwritev2 (-1, &iov, 1, -1, 0) == -1);
|
|
TEST_COMPARE (errno, EBADF);
|
|
|
|
/* Same tests as before but with flags being different than 0. Since
|
|
there is no emulation for any flag value, fallback code returns
|
|
ENOTSUP. This is different running on a kernel with preadv2/pwritev2
|
|
support, where EBADF is returned). */
|
|
TEST_VERIFY (preadv2 (-1, &iov, 1, 0, RWF_HIPRI) == -1);
|
|
TEST_VERIFY (errno == EBADF || errno == ENOTSUP);
|
|
TEST_VERIFY (pwritev2 (-1, &iov, 1, 0, RWF_HIPRI) == -1);
|
|
TEST_VERIFY (errno == EBADF || errno == ENOTSUP);
|
|
}
|
|
|
|
static void
|
|
do_test_with_invalid_iov (void)
|
|
{
|
|
{
|
|
char buf[256];
|
|
struct iovec iov;
|
|
|
|
iov.iov_base = buf;
|
|
iov.iov_len = (size_t)SSIZE_MAX + 1;
|
|
|
|
TEST_VERIFY (preadv2 (temp_fd, &iov, 1, 0, 0) == -1);
|
|
TEST_COMPARE (errno, EINVAL);
|
|
TEST_VERIFY (pwritev2 (temp_fd, &iov, 1, 0, 0) == -1);
|
|
TEST_COMPARE (errno, EINVAL);
|
|
|
|
/* Same as for invalid file descriptor tests, emulation fallback
|
|
first checks for flag value and return ENOTSUP. */
|
|
TEST_VERIFY (preadv2 (temp_fd, &iov, 1, 0, RWF_HIPRI) == -1);
|
|
TEST_VERIFY (errno == EINVAL || errno == ENOTSUP);
|
|
TEST_VERIFY (pwritev2 (temp_fd, &iov, 1, 0, RWF_HIPRI) == -1);
|
|
TEST_VERIFY (errno == EINVAL || errno == ENOTSUP);
|
|
}
|
|
|
|
{
|
|
/* An invalid iovec buffer should trigger an invalid memory access
|
|
or an error (Linux for instance returns EFAULT). */
|
|
struct iovec iov[IOV_MAX+1] = { 0 };
|
|
|
|
TEST_VERIFY (preadv2 (temp_fd, iov, IOV_MAX + 1, 0, RWF_HIPRI) == -1);
|
|
TEST_VERIFY (errno == EINVAL || errno == ENOTSUP);
|
|
TEST_VERIFY (pwritev2 (temp_fd, iov, IOV_MAX + 1, 0, RWF_HIPRI) == -1);
|
|
TEST_VERIFY (errno == EINVAL || errno == ENOTSUP);
|
|
}
|
|
}
|
|
|
|
static void
|
|
do_test_with_invalid_flags (void)
|
|
{
|
|
/* Set the next bit from the mask of all supported flags. */
|
|
int invalid_flag = RWF_SUPPORTED != 0 ? __builtin_clz (RWF_SUPPORTED) : 2;
|
|
invalid_flag = 0x1 << ((sizeof (int) * CHAR_BIT) - invalid_flag);
|
|
|
|
char buf[32];
|
|
const struct iovec vec = { .iov_base = buf, .iov_len = sizeof (buf) };
|
|
if (preadv2 (temp_fd, &vec, 1, 0, invalid_flag) != -1)
|
|
FAIL_EXIT1 ("preadv2 did not fail with an invalid flag");
|
|
if (errno != ENOTSUP)
|
|
FAIL_EXIT1 ("preadv2 failure did not set errno to ENOTSUP (%d)", errno);
|
|
|
|
/* This might fail for compat syscall (32 bits running on 64 bits kernel)
|
|
due a kernel issue. */
|
|
if (pwritev2 (temp_fd, &vec, 1, 0, invalid_flag) != -1)
|
|
FAIL_EXIT1 ("pwritev2 did not fail with an invalid flag");
|
|
if (errno != ENOTSUP)
|
|
FAIL_EXIT1 ("pwritev2 failure did not set errno to ENOTSUP (%d)", errno);
|
|
}
|