mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-14 17:11:06 +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
113 lines
3.7 KiB
C
113 lines
3.7 KiB
C
/* Test ldconfig does not segfault when aux-cache is corrupted (Bug 18093).
|
|
Copyright (C) 2019-2022 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; see the file COPYING.LIB. If
|
|
not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* This test does the following:
|
|
Run ldconfig to create the caches.
|
|
Corrupt the caches.
|
|
Run ldconfig again.
|
|
At each step we verify that ldconfig does not crash. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <sys/wait.h>
|
|
#include <ftw.h>
|
|
#include <stdint.h>
|
|
|
|
#include <support/capture_subprocess.h>
|
|
#include <support/check.h>
|
|
#include <support/support.h>
|
|
#include <support/xunistd.h>
|
|
|
|
#include <dirent.h>
|
|
|
|
static int
|
|
display_info (const char *fpath, const struct stat *sb,
|
|
int tflag, struct FTW *ftwbuf)
|
|
{
|
|
printf ("info: %-3s %2d %7jd %-40s %d %s\n",
|
|
(tflag == FTW_D) ? "d" : (tflag == FTW_DNR) ? "dnr" :
|
|
(tflag == FTW_DP) ? "dp" : (tflag == FTW_F) ? "f" :
|
|
(tflag == FTW_NS) ? "ns" : (tflag == FTW_SL) ? "sl" :
|
|
(tflag == FTW_SLN) ? "sln" : "???",
|
|
ftwbuf->level, (intmax_t) sb->st_size,
|
|
fpath, ftwbuf->base, fpath + ftwbuf->base);
|
|
/* To tell nftw to continue. */
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
execv_wrapper (void *args)
|
|
{
|
|
char **argv = args;
|
|
|
|
execv (argv[0], argv);
|
|
FAIL_EXIT1 ("execv: %m");
|
|
}
|
|
|
|
/* Run ldconfig with a corrupt aux-cache, in particular we test for size
|
|
truncation that might happen if a previous ldconfig run failed or if
|
|
there were storage or power issues while we were writing the file.
|
|
We want ldconfig not to crash, and it should be able to do so by
|
|
computing the expected size of the file (bug 18093). */
|
|
static int
|
|
do_test (void)
|
|
{
|
|
char *prog = xasprintf ("%s/ldconfig", support_install_rootsbindir);
|
|
char *args[] = { prog, NULL };
|
|
const char *path = "/var/cache/ldconfig/aux-cache";
|
|
struct stat64 fs;
|
|
long int size, new_size, i;
|
|
|
|
/* Create the needed directories. */
|
|
xmkdirp ("/var/cache/ldconfig", 0777);
|
|
|
|
/* Run ldconfig first to generate the aux-cache. */
|
|
struct support_capture_subprocess result;
|
|
result = support_capture_subprocess (execv_wrapper, args);
|
|
support_capture_subprocess_check (&result, "execv", 0, sc_allow_none);
|
|
support_capture_subprocess_free (&result);
|
|
|
|
xstat (path, &fs);
|
|
|
|
size = fs.st_size;
|
|
/* Run 3 tests, each truncating aux-cache shorter and shorter. */
|
|
for (i = 3; i > 0; i--)
|
|
{
|
|
new_size = size * i / 4;
|
|
if (truncate (path, new_size))
|
|
FAIL_EXIT1 ("truncation failed: %m");
|
|
if (nftw (path, display_info, 1000, 0) == -1)
|
|
FAIL_EXIT1 ("nftw failed.");
|
|
|
|
/* Verify that ldconfig can run with a truncated
|
|
aux-cache and doesn't crash. */
|
|
struct support_capture_subprocess result;
|
|
result = support_capture_subprocess (execv_wrapper, args);
|
|
support_capture_subprocess_check (&result, "execv", 0, sc_allow_none);
|
|
support_capture_subprocess_free (&result);
|
|
}
|
|
|
|
free (prog);
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|