mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 15:30:07 +00:00
581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
/* Check if internal buffer reallocation work for large paths (BZ #28126)
|
|
Copyright (C) 2021-2022 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <ftw.h>
|
|
#include <limits.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <support/check.h>
|
|
#include <support/support.h>
|
|
#include <support/temp_file.h>
|
|
#include <support/xunistd.h>
|
|
#include <stdio.h>
|
|
|
|
static int
|
|
my_func (const char *file, const struct stat *sb, int flag)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static const char folder[NAME_MAX] = { [0 ... 253] = 'a', [254] = '\0' };
|
|
|
|
#define NSUBFOLDERS 16
|
|
static int nsubfolders;
|
|
|
|
static void
|
|
do_cleanup (void)
|
|
{
|
|
xchdir ("..");
|
|
for (int i = 0; i < nsubfolders; i++)
|
|
{
|
|
remove (folder);
|
|
xchdir ("..");
|
|
}
|
|
remove (folder);
|
|
}
|
|
#define CLEANUP_HANDLER do_cleanup
|
|
|
|
static void
|
|
check_mkdir (const char *path)
|
|
{
|
|
int r = mkdir (path, 0777);
|
|
/* Some filesystem such as overlayfs does not support larger path required
|
|
to trigger the internal buffer reallocation. */
|
|
if (r != 0)
|
|
{
|
|
if (errno == ENAMETOOLONG)
|
|
FAIL_UNSUPPORTED ("the filesystem does not support the required"
|
|
"large path");
|
|
else
|
|
FAIL_EXIT1 ("mkdir (\"%s\", 0%o): %m", folder, 0777);
|
|
}
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
char *tempdir = support_create_temp_directory ("tst-bz28126");
|
|
|
|
/* Create path with various subfolders to force an internal buffer
|
|
reallocation within ntfw. */
|
|
char *path = xasprintf ("%s/%s", tempdir, folder);
|
|
check_mkdir (path);
|
|
xchdir (path);
|
|
free (path);
|
|
for (int i = 0; i < NSUBFOLDERS - 1; i++)
|
|
{
|
|
check_mkdir (folder);
|
|
xchdir (folder);
|
|
nsubfolders++;
|
|
}
|
|
|
|
TEST_COMPARE (ftw (tempdir, my_func, 20), 0);
|
|
|
|
free (tempdir);
|
|
|
|
do_cleanup ();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|