2018-08-10 08:20:13 +00:00
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/* Test readdir64 compatibility symbol.
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2023-01-06 21:08:04 +00:00
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Copyright (C) 2018-2023 Free Software Foundation, Inc.
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2018-08-10 08:20:13 +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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2018-08-10 08:20:13 +00:00
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#include <dirent.h>
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#include <dlfcn.h>
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#include <errno.h>
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#include <shlib-compat.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include <support/check.h>
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/* Copied from <olddirent.h>. */
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struct __old_dirent64
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{
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__ino_t d_ino;
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__off64_t d_off;
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unsigned short int d_reclen;
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unsigned char d_type;
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char d_name[256];
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};
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typedef struct __old_dirent64 *(*compat_readdir64_type) (DIR *);
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2022-07-25 07:39:22 +00:00
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#if TEST_COMPAT (libc, GLIBC_2_1, GLIBC_2_2)
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2018-08-10 08:20:13 +00:00
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struct __old_dirent64 *compat_readdir64 (DIR *);
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compat_symbol_reference (libc, compat_readdir64, readdir64, GLIBC_2_1);
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2022-07-25 07:39:22 +00:00
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#endif
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2018-08-10 08:20:13 +00:00
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static int
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do_test (void)
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{
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2022-07-25 07:39:22 +00:00
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#if TEST_COMPAT (libc, GLIBC_2_1, GLIBC_2_2)
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2018-08-10 08:20:13 +00:00
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/* Directory stream using the non-compat readdir64 symbol. The test
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checks against this. */
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DIR *dir_reference = opendir (".");
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TEST_VERIFY_EXIT (dir_reference != NULL);
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DIR *dir_test = opendir (".");
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TEST_VERIFY_EXIT (dir_test != NULL);
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/* This loop assumes that the enumeration order is consistent for
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two different handles. Nothing should write to the current
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directory (in the source tree) while this test runs, so there
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should not be any difference due to races. */
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size_t count = 0;
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while (true)
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{
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errno = 0;
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struct dirent64 *entry_reference = readdir64 (dir_reference);
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if (entry_reference == NULL && errno != 0)
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FAIL_EXIT1 ("readdir64 entry %zu: %m\n", count);
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struct __old_dirent64 *entry_test = compat_readdir64 (dir_test);
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if (entry_reference == NULL)
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{
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if (errno == EOVERFLOW)
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{
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TEST_VERIFY (entry_reference->d_ino
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!= (__ino_t) entry_reference->d_ino);
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printf ("info: inode number overflow at entry %zu\n", count);
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break;
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}
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if (errno != 0)
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FAIL_EXIT1 ("compat readdir64 entry %zu: %m\n", count);
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}
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/* Check that both streams end at the same time. */
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if (entry_reference == NULL)
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{
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TEST_VERIFY (entry_test == NULL);
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break;
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}
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else
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TEST_VERIFY_EXIT (entry_test != NULL);
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2018-12-10 13:14:45 +00:00
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/* d_off is never zero because it is the offset of the next
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entry (not the current entry). */
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TEST_VERIFY (entry_reference->d_off > 0);
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2018-08-10 08:20:13 +00:00
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/* Check that the entries are the same. */
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TEST_COMPARE_BLOB (entry_reference->d_name,
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strlen (entry_reference->d_name),
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entry_test->d_name, strlen (entry_test->d_name));
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TEST_COMPARE (entry_reference->d_ino, entry_test->d_ino);
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TEST_COMPARE (entry_reference->d_off, entry_test->d_off);
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TEST_COMPARE (entry_reference->d_type, entry_test->d_type);
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TEST_COMPARE (entry_reference->d_reclen, entry_test->d_reclen);
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++count;
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}
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printf ("info: %zu directory entries found\n", count);
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TEST_VERIFY (count >= 3); /* ".", "..", and some source files. */
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TEST_COMPARE (closedir (dir_test), 0);
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TEST_COMPARE (closedir (dir_reference), 0);
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2022-07-25 07:39:22 +00:00
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#endif
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2018-08-10 08:20:13 +00:00
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return 0;
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}
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#include <support/test-driver.c>
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