mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 14:50:05 +00:00
* stdlib/bits/stdlib.h: New file.
* stdlib/stdlib.h: Include <bits/stdlib.h> if fortification is requested. * Makefile (headers): Add bits/stdlib.h. * include/bits/stdlib.h: New file. * debug/Depend: New file. * debug/ptsname_r_chk.c: New file. * debug/realpath_chk.c: New file. * debug/wctomb_chk.c: New file. * debug/Makefile (routines): Add ptsname_r_chk, realpath_chk, and wctomb_chk. * debug/Versions: Export __ptsname_r_chk, __realpath_chk, and __wctomb_chk. * debug/tst-chk1.c: Add tests for __ptsname_r_chk, __realpath_chk, and __wctomb_chk.
This commit is contained in:
parent
9d653cd189
commit
b799f91ddd
18
ChangeLog
18
ChangeLog
@ -1,3 +1,21 @@
|
||||
2005-07-12 Ulrich Drepper <drepper@redhat.com>
|
||||
|
||||
* stdlib/bits/stdlib.h: New file.
|
||||
* stdlib/stdlib.h: Include <bits/stdlib.h> if fortification is
|
||||
requested.
|
||||
* Makefile (headers): Add bits/stdlib.h.
|
||||
* include/bits/stdlib.h: New file.
|
||||
* debug/Depend: New file.
|
||||
* debug/ptsname_r_chk.c: New file.
|
||||
* debug/realpath_chk.c: New file.
|
||||
* debug/wctomb_chk.c: New file.
|
||||
* debug/Makefile (routines): Add ptsname_r_chk, realpath_chk, and
|
||||
wctomb_chk.
|
||||
* debug/Versions: Export __ptsname_r_chk, __realpath_chk, and
|
||||
__wctomb_chk.
|
||||
* debug/tst-chk1.c: Add tests for __ptsname_r_chk, __realpath_chk, and
|
||||
__wctomb_chk.
|
||||
|
||||
2005-07-12 Jakub Jelinek <jakub@redhat.com>
|
||||
|
||||
* sysdeps/unix/sysv/linux/ia64/has_cpuclock.c: Include not-cancel.h.
|
||||
|
1
debug/Depend
Normal file
1
debug/Depend
Normal file
@ -0,0 +1 @@
|
||||
localedata
|
@ -31,7 +31,8 @@ routines = backtrace backtracesyms backtracesymsfd noophooks \
|
||||
printf_chk fprintf_chk vprintf_chk vfprintf_chk \
|
||||
gets_chk chk_fail readonly-area fgets_chk fgets_u_chk \
|
||||
read_chk pread_chk pread64_chk recv_chk recvfrom_chk \
|
||||
readlink_chk getwd_chk getcwd_chk stack_chk_fail \
|
||||
readlink_chk getwd_chk getcwd_chk realpath_chk ptsname_r_chk \
|
||||
wctomb_chk stack_chk_fail \
|
||||
$(static-only-routines)
|
||||
static-only-routines := warning-nop stack_chk_fail_local
|
||||
|
||||
|
@ -23,6 +23,7 @@ libc {
|
||||
__read_chk; __pread_chk; __pread64_chk;
|
||||
__readlink_chk; __getcwd_chk; __getwd_chk;
|
||||
__recv_chk; __recvfrom_chk;
|
||||
__realpath_chk; __ptsname_r_chk; __wctomb_chk;
|
||||
|
||||
__stack_chk_fail;
|
||||
}
|
||||
|
29
debug/ptsname_r_chk.c
Normal file
29
debug/ptsname_r_chk.c
Normal file
@ -0,0 +1,29 @@
|
||||
/* Copyright (C) 2005 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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <stdlib.h>
|
||||
|
||||
|
||||
int
|
||||
__ptsname_r_chk (int fd, char *buf, size_t buflen, size_t nreal)
|
||||
{
|
||||
if (buflen > nreal)
|
||||
__chk_fail ();
|
||||
|
||||
return __ptsname_r (fd, buf, buflen);
|
||||
}
|
60
debug/realpath_chk.c
Normal file
60
debug/realpath_chk.c
Normal file
@ -0,0 +1,60 @@
|
||||
/* Copyright (C) 2005 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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <limits.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
|
||||
char *
|
||||
__realpath_chk (const char *buf, char *resolved, size_t resolvedlen)
|
||||
{
|
||||
#ifdef PATH_MAX
|
||||
if (resolvedlen < PATH_MAX)
|
||||
__chk_fail ();
|
||||
|
||||
return __realpath (buf, resolved);
|
||||
#else
|
||||
long int pathmax =__pathconf (buf, _PC_PATH_MAX);
|
||||
if (pathmax != -1)
|
||||
{
|
||||
/* We do have a fixed limit. */
|
||||
if (resolvedlen < pathmax)
|
||||
__chk_fail ();
|
||||
|
||||
return __realpath (buf, resolved);
|
||||
}
|
||||
|
||||
/* Since there is no fixed limit we check whether the size is large
|
||||
enough. */
|
||||
char *res = __realpath (buf, NULL);
|
||||
if (res != NULL)
|
||||
{
|
||||
size_t actlen = strlen (res) + 1;
|
||||
if (actlen > resolvedlen)
|
||||
__chk_fail ();
|
||||
|
||||
memcpy (resolved, res, actlen);
|
||||
free (res);
|
||||
res = resolved;
|
||||
}
|
||||
|
||||
return res;
|
||||
#endif
|
||||
}
|
@ -18,6 +18,7 @@
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <fcntl.h>
|
||||
#include <locale.h>
|
||||
#include <paths.h>
|
||||
#include <setjmp.h>
|
||||
#include <signal.h>
|
||||
@ -791,5 +792,69 @@ do_test (void)
|
||||
if (rmdir (fname) != 0)
|
||||
FAIL ();
|
||||
|
||||
|
||||
#if PATH_MAX > 0
|
||||
char largebuf[PATH_MAX];
|
||||
char *realres = realpath (".", largebuf);
|
||||
#endif
|
||||
#if __USE_FORTIFY_LEVEL >= 1
|
||||
CHK_FAIL_START
|
||||
char realbuf[1];
|
||||
realres = realpath (".", realbuf);
|
||||
CHK_FAIL_END
|
||||
#endif
|
||||
|
||||
if (setlocale (LC_ALL, "de_DE.UTF-8") != NULL)
|
||||
{
|
||||
/* First a simple test. */
|
||||
char enough[MB_CUR_MAX];
|
||||
if (wctomb (enough, L'A') != 1)
|
||||
{
|
||||
puts ("first wctomb test failed");
|
||||
ret = 1;
|
||||
}
|
||||
|
||||
#if __USE_FORTIFY_LEVEL >= 1
|
||||
/* We know the wchar_t encoding is ISO 10646. So pick a
|
||||
character which has a multibyte representation which does not
|
||||
fit. */
|
||||
CHK_FAIL_START
|
||||
char smallbuf[2];
|
||||
if (wctomb (smallbuf, L'\x100') != 2)
|
||||
{
|
||||
puts ("second wctomb test failed");
|
||||
ret = 1;
|
||||
}
|
||||
CHK_FAIL_END
|
||||
#endif
|
||||
}
|
||||
else
|
||||
{
|
||||
puts ("cannot set locale");
|
||||
ret = 1;
|
||||
}
|
||||
|
||||
fd = posix_openpt (O_RDWR);
|
||||
if (fd != -1)
|
||||
{
|
||||
char enough[1000];
|
||||
if (ptsname_r (fd, enough, sizeof (enough)) != 0)
|
||||
{
|
||||
puts ("first ptsname_r failed");
|
||||
ret = 1;
|
||||
}
|
||||
|
||||
#if __USE_FORTIFY_LEVEL >= 1
|
||||
CHK_FAIL_START
|
||||
char smallbuf[2];
|
||||
if (ptsname_r (fd, smallbuf, sizeof (smallbuf) + 1) == 0)
|
||||
{
|
||||
puts ("second ptsname_r somehow suceeded");
|
||||
ret = 1;
|
||||
}
|
||||
CHK_FAIL_END
|
||||
#endif
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
36
debug/wctomb_chk.c
Normal file
36
debug/wctomb_chk.c
Normal file
@ -0,0 +1,36 @@
|
||||
/* Copyright (C) 2005 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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <locale.h>
|
||||
#include <stdlib.h>
|
||||
#include <wcsmbs/wcsmbsload.h>
|
||||
|
||||
|
||||
extern mbstate_t __no_r_state attribute_hidden; /* Defined in mbtowc.c. */
|
||||
|
||||
|
||||
int
|
||||
__wctomb_chk (char *s, wchar_t wchar, size_t buflen)
|
||||
{
|
||||
/* We do not have to implement the full wctomb semantics since we
|
||||
know that S cannot be NULL when we come here. */
|
||||
if (buflen < MB_CUR_MAX)
|
||||
__chk_fail ();
|
||||
|
||||
return __wcrtomb (s, wchar, &__no_r_state);
|
||||
}
|
1
include/bits/stdlib.h
Normal file
1
include/bits/stdlib.h
Normal file
@ -0,0 +1 @@
|
||||
#include <stdlib/bits/stdlib.h>
|
@ -23,7 +23,7 @@ subdir := stdlib
|
||||
|
||||
headers := stdlib.h alloca.h monetary.h fmtmsg.h ucontext.h sys/ucontext.h \
|
||||
inttypes.h stdint.h bits/wordsize.h bits/wchar.h \
|
||||
errno.h sys/errno.h bits/errno.h
|
||||
errno.h sys/errno.h bits/errno.h bits/stdlib.h
|
||||
|
||||
routines := \
|
||||
atof atoi atol atoll \
|
||||
|
75
stdlib/bits/stdlib.h
Normal file
75
stdlib/bits/stdlib.h
Normal file
@ -0,0 +1,75 @@
|
||||
/* Checking macros for stdlib functions.
|
||||
Copyright (C) 2005 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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#ifndef _STDLIB_H
|
||||
# error "Never include <bits/stdlib.h> directly; use <stdlib.h> instead."
|
||||
#endif
|
||||
|
||||
extern char *__realpath_chk (__const char *__restrict __name,
|
||||
char *__restrict __resolved,
|
||||
size_t __resolvedlen) __THROW __wur;
|
||||
extern char *__REDIRECT (__realpath_alias, (__const char *__restrict __name,
|
||||
char *__restrict __resolved),
|
||||
realpath) __THROW __wur;
|
||||
|
||||
extern __always_inline __wur char *
|
||||
realpath (const char *__name, char *__resolved)
|
||||
{
|
||||
if (__bos (__resolved) != (size_t) -1)
|
||||
return __realpath_chk (__name, __resolved, __bos (__resolved));
|
||||
|
||||
return __realpath_alias (__name, __resolved);
|
||||
}
|
||||
|
||||
|
||||
extern int __ptsname_r_chk (int __fd, char *__buf, size_t __buflen,
|
||||
size_t __nreal) __THROW __nonnull ((2));
|
||||
extern int __REDIRECT (__ptsname_r_alias, (int __fd, char *__buf,
|
||||
size_t __buflen), ptsname_r)
|
||||
__THROW __nonnull ((2));
|
||||
|
||||
extern __always_inline int
|
||||
ptsname_r (int __fd, char *__buf, size_t __buflen)
|
||||
{
|
||||
if (__bos (__buf) != (size_t) -1
|
||||
&& (!__builtin_constant_p (__buflen) || __buflen > __bos (__buf)))
|
||||
return __ptsname_r_chk (__fd, __buf, __buflen, __bos (__buf));
|
||||
return __ptsname_r_alias (__fd, __buf, __buflen);
|
||||
}
|
||||
|
||||
|
||||
extern int __wctomb_chk (char *__s, wchar_t __wchar, size_t __buflen)
|
||||
__THROW __wur;
|
||||
extern int __REDIRECT (__wctomb_alias, (char *__s, wchar_t __wchar), wctomb)
|
||||
__THROW __wur;
|
||||
|
||||
extern __always_inline __wur int
|
||||
wctomb (char *__s, wchar_t __wchar)
|
||||
{
|
||||
/* We would have to include <limits.h> to get a definition of MB_LEN_MAX.
|
||||
But this would only disturb the namespace. So we define our own
|
||||
version here. */
|
||||
#define __STDLIB_MB_LEN_MAX 16
|
||||
#if defined MB_LEN_MAX && MB_LEN_MAX != __STDLIB_MB_LEN_MAX
|
||||
# error "Assumed value of MB_LEN_MAX wrong"
|
||||
#endif
|
||||
if (__bos (__s) != (size_t) -1 && __STDLIB_MB_LEN_MAX > __bos (__s))
|
||||
return __wctomb_chk (__s, __wchar, __bos (__s));
|
||||
return __wctomb_alias (__s, __wchar);
|
||||
}
|
@ -961,6 +961,12 @@ extern int getloadavg (double __loadavg[], int __nelem)
|
||||
__THROW __nonnull ((1));
|
||||
#endif
|
||||
|
||||
|
||||
/* Define some macros helping to catch buffer overflows. */
|
||||
#if __USE_FORTIFY_LEVEL > 0 && !defined __cplusplus
|
||||
# include <bits/stdlib.h>
|
||||
#endif
|
||||
|
||||
#endif /* don't just need malloc and calloc */
|
||||
#undef __need_malloc_and_calloc
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user