mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 14:30:06 +00:00
5a82c74822
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
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/* Bug 22786: test for buffer overflow in realpath.
|
|
Copyright (C) 2018-2019 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/>. */
|
|
|
|
/* This file must be run from within a directory called "stdlib". */
|
|
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <support/blob_repeat.h>
|
|
#include <support/check.h>
|
|
#include <support/support.h>
|
|
#include <support/temp_file.h>
|
|
#include <support/test-driver.h>
|
|
#include <libc-diag.h>
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
char *dir = support_create_temp_directory ("bz22786.");
|
|
char *lnk = xasprintf ("%s/symlink", dir);
|
|
const size_t path_len = (size_t) INT_MAX + strlen (lnk) + 1;
|
|
|
|
struct support_blob_repeat repeat
|
|
= support_blob_repeat_allocate ("a", 1, path_len);
|
|
char *path = repeat.start;
|
|
if (path == NULL)
|
|
{
|
|
printf ("Repeated allocation (%zu bytes): %m\n", path_len);
|
|
/* On 31-bit s390 the malloc will always fail as we do not have
|
|
so much memory, and we want to mark the test unsupported.
|
|
Likewise on systems with little physical memory the test will
|
|
fail and should be unsupported. */
|
|
return EXIT_UNSUPPORTED;
|
|
}
|
|
|
|
TEST_VERIFY_EXIT (symlink (".", lnk) == 0);
|
|
|
|
/* Construct very long path = "/tmp/bz22786.XXXX/symlink/aaaa....." */
|
|
char *p = mempcpy (path, lnk, strlen (lnk));
|
|
*(p++) = '/';
|
|
p[path_len - (p - path) - 1] = '\0';
|
|
|
|
/* This call crashes before the fix for bz22786 on 32-bit platforms. */
|
|
p = realpath (path, NULL);
|
|
|
|
if (p != NULL || errno != ENAMETOOLONG)
|
|
{
|
|
printf ("realpath: %s (%m)", p);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
/* Cleanup. */
|
|
unlink (lnk);
|
|
support_blob_repeat_free (&repeat);
|
|
free (lnk);
|
|
free (dir);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test
|
|
#include <support/test-driver.c>
|