2016-10-04 14:57:38 +00:00
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/* Basic sync_file_range (not specific flag is checked).
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2021-01-02 19:32:25 +00:00
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Copyright (C) 2016-2021 Free Software Foundation, Inc.
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2016-10-04 14:57:38 +00:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
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<https://www.gnu.org/licenses/>. */
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2016-10-04 14:57:38 +00:00
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/* sync_file_range is only define for LFS. */
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#define _FILE_OFFSET_BITS 64
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#include <errno.h>
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2016-12-09 07:18:27 +00:00
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#include <fcntl.h>
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#include <limits.h>
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2017-02-16 22:31:42 +00:00
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#include <stdint.h>
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2016-12-09 07:18:27 +00:00
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#include <stdlib.h>
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#include <sys/stat.h>
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2016-10-04 14:57:38 +00:00
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2016-12-09 07:18:27 +00:00
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#include <support/temp_file.h>
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#include <support/check.h>
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2016-10-04 14:57:38 +00:00
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#define XSTR(s) STR(S)
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#define STR(s) #s
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static char *temp_filename;
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static int temp_fd;
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static char fifoname[] = "/tmp/tst-posix_fadvise-fifo-XXXXXX";
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static int fifofd;
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void
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2016-12-09 07:18:27 +00:00
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do_prepare (int argc, char **argv)
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2016-10-04 14:57:38 +00:00
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{
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temp_fd = create_temp_file ("tst-file_sync_range.", &temp_filename);
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if (temp_fd == -1)
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FAIL_EXIT1 ("cannot create temporary file: %m");
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if (mktemp (fifoname) == NULL)
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FAIL_EXIT1 ("cannot generate temp file name: %m");
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add_temp_file (fifoname);
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if (mkfifo (fifoname, S_IWUSR | S_IRUSR) != 0)
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FAIL_EXIT1 ("cannot create fifo: %m");
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fifofd = open (fifoname, O_RDONLY | O_NONBLOCK);
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if (fifofd == -1)
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FAIL_EXIT1 ("cannot open fifo: %m");
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}
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2016-12-09 07:18:27 +00:00
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#define PREPARE do_prepare
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2016-10-04 14:57:38 +00:00
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static int
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do_test (void)
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{
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int ret;
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/* This tests first check for some invalid usage and then check for
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a simple usage. It does not cover for all possible issue since for
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EIO/ENOMEM/ENOSPC would require to create very specific scenarios that
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are outside the current test coverage (basically correct kernel argument
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passing. */
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/* Check for invalid file descriptor. */
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if ((ret = sync_file_range (-1, 0, 0, 0)) != -1)
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FAIL_EXIT1 ("sync_file_range did not fail on an invalid descriptor "
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"(returned %d, expected -1)", ret);
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if (errno != EBADF)
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FAIL_EXIT1 ("sync_file_range on an invalid descriptor did not set errno to "
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"EBADF (%d)", errno);
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if ((ret = sync_file_range (fifofd, 0, 0, 0)) != -1)
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FAIL_EXIT1 ("sync_file_range did not fail on an invalid descriptor "
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"(returned %d, expected -1)", ret);
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if (errno != ESPIPE)
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FAIL_EXIT1 ("sync_file_range on an invalid descriptor did not set errno to "
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"EBADF (%d)", errno);
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/* Check for invalid flags (it must be
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SYNC_FILE_RANGE_{WAIT_BEFORE,WRITE,WAIT_AFTER) or a 'or' combination of
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them. */
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if ((ret = sync_file_range (temp_fd, 0, 0, -1)) != -1)
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FAIL_EXIT1 ("sync_file_range did not failed with invalid flags "
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"(returned %d, " "expected -1)", ret);
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if (errno != EINVAL)
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FAIL_EXIT1 ("sync_file_range with invalid flag did not set errno to "
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"EINVAL (%d)", errno);
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/* Check for negative offset. */
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if ((ret = sync_file_range (temp_fd, -1, 1, 0)) != -1)
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FAIL_EXIT1 ("sync_file_range did not failed with invalid offset "
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"(returned %d, expected -1)", ret);
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if (errno != EINVAL)
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FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to "
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"EINVAL (%d)", errno);
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/* offset + nbytes must be a positive value. */
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if ((ret = sync_file_range (temp_fd, 1024, -2048, 0)) != -1)
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FAIL_EXIT1 ("sync_file_range did not failed with invalid nbytes (returned %d, "
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"expected -1)", ret);
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if (errno != EINVAL)
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FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to "
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"EINVAL (%d)", errno);
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/* offset + nbytes must be larger or equal than offset */
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if ((ret = sync_file_range (temp_fd, -1024, 1024, 0)) != -1)
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FAIL_EXIT1 ("sync_file_range did not failed with invalid offset "
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"(returned %d, expected -1)", ret);
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if (errno != EINVAL)
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FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to "
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"EINVAL (%d)", errno);
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/* Check simple successful case. */
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if ((ret = sync_file_range (temp_fd, 0, 1024, 0)) == -1)
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FAIL_EXIT1 ("sync_file_range failed (errno = %d)", errno);
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/* Finally check also a successful case with a 64-bit offset. */
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off_t large_offset = UINT32_MAX + 2048LL;
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if ((ret = sync_file_range (temp_fd, large_offset, 1024, 0)) == -1)
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FAIL_EXIT1 ("sync_file_range failed (errno = %d)", errno);
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return 0;
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}
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2016-12-09 07:18:27 +00:00
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#include <support/test-driver.c>
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