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Consolidate definitions of _FORTIFY_SOURCE wrappers for open{,64}{,at}.

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This commit is contained in:
Roland McGrath 2013-05-03 16:33:26 -07:00
parent 60bfd54cbb
commit cc0e6ed81f
16 changed files with 97 additions and 106 deletions
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19
ChangeLog
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@ -1,5 +1,24 @@
2013-05-03 Roland McGrath <roland@hack.frob.com>
* io/open.c (__open_2): Moved to ...
* io/open_2.c: ... this new file.
* io/open64.c (__open64_2): Moved to ...
* io/open64_2.c: ... this new file.
* io/openat.c (__openat_2): Moved to ...
* io/openat_2.c: ... this new file.
* io/openat64.c (__openat64_2): Moved to ...
* io/openat64_2.c: ... this new file.
* io/Makefile (routines): Add them.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove them.
* sysdeps/unix/sysv/linux/open_2.c: File removed.
* sysdeps/unix/sysv/linux/open64_2.c: File removed.
* sysdeps/unix/sysv/linux/openat.c (__OPENAT_2): Removed.
* sysdeps/unix/sysv/linux/openat64.c (__OPENAT_2): Removed.
* sysdeps/unix/sysv/linux/wordsize-64/openat.c (__openat_2): Removed.
(__openat64): Add hidden_ver.
* sysdeps/mach/hurd/open.c (__open_2, __open64_2): Removed.
* sysdeps/mach/hurd/openat.c (__openat_2): Removed.
* elf/dl-sysdep.c (_dl_sysdep_start) [NEED_DL_SYSINFO]:
Separately conditionalize setting of GLRO(dl_sysinfo) so
that the GLRO(dl_sysinfo_dso) test is under [NEED_DL_SYSINFO_DSO]

4
io/Makefile
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@ -36,10 +36,10 @@ routines := \
statvfs fstatvfs statvfs64 fstatvfs64 \
umask chmod fchmod lchmod fchmodat \
mkdir mkdirat \
open open64 openat openat64 close \
open open_2 open64 open64_2 openat openat_2 openat64 openat64_2 \
read write lseek lseek64 access euidaccess faccessat \
fcntl flock lockf lockf64 \
dup dup2 dup3 pipe pipe2 \
close dup dup2 dup3 pipe pipe2 \
creat creat64 \
chdir fchdir \
getcwd getwd getdirname \

14
io/open.c
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@ -22,7 +22,6 @@
#include <stddef.h>
#include <stdio.h>
extern char **__libc_argv attribute_hidden;
/* Open FILE with access OFLAG. If OFLAG includes O_CREAT,
a third argument is the file protection. */
@ -57,15 +56,6 @@ weak_alias (__libc_open, open)
stub_warning (open)
int
__open_2 (file, oflag)
const char *file;
int oflag;
{
if (oflag & O_CREAT)
__fortify_fail ("invalid open call: O_CREAT without mode");
return __open (file, oflag);
}
/* __open_2 is a generic wrapper that calls __open.
So give a stub warning for that symbol too. */
stub_warning (__open_2)

13
io/open64.c
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@ -53,15 +53,6 @@ weak_alias (__libc_open64, open64)
stub_warning (open64)
int
__open64_2 (file, oflag)
const char *file;
int oflag;
{
if (oflag & O_CREAT)
__fortify_fail ("invalid open64 call: O_CREAT without mode");
return __open64 (file, oflag);
}
/* __open64_2 is a generic wrapper that calls __open64.
So give a stub warning for that symbol too. */
stub_warning (__open64_2)

8
sysdeps/unix/sysv/linux/open64_2.c → io/open64_2.c
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@ -1,4 +1,5 @@
/* Copyright (C) 2007-2013 Free Software Foundation, Inc.
/* _FORTIFY_SOURCE wrapper for open64.
Copyright (C) 2013 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
@ -18,11 +19,8 @@
#include <fcntl.h>
#include <stdio.h>
int
__open64_2 (file, oflag)
const char *file;
int oflag;
__open64_2 (const char *file, int oflag)
{
if (oflag & O_CREAT)
__fortify_fail ("invalid open64 call: O_CREAT without mode");

8
sysdeps/unix/sysv/linux/open_2.c → io/open_2.c
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@ -1,4 +1,5 @@
/* Copyright (C) 2007-2013 Free Software Foundation, Inc.
/* _FORTIFY_SOURCE wrapper for open.
Copyright (C) 2013 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
@ -18,11 +19,8 @@
#include <fcntl.h>
#include <stdio.h>
int
__open_2 (file, oflag)
const char *file;
int oflag;
__open_2 (const char *file, int oflag)
{
if (oflag & O_CREAT)
__fortify_fail ("invalid open call: O_CREAT without mode");

14
io/openat.c
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@ -75,16 +75,6 @@ libc_hidden_def (__openat)
weak_alias (__openat, openat)
stub_warning (openat)
int
__openat_2 (fd, file, oflag)
int fd;
const char *file;
int oflag;
{
if (oflag & O_CREAT)
__fortify_fail ("invalid openat call: O_CREAT without mode");
return __openat (fd, file, oflag);
}
/* __openat_2 is a generic wrapper that calls __openat.
So give a stub warning for that symbol too. */
stub_warning (__openat_2)

14
io/openat64.c
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@ -68,16 +68,6 @@ libc_hidden_def (__openat64)
weak_alias (__openat64, openat64)
stub_warning (openat64)
int
__openat64_2 (fd, file, oflag)
int fd;
const char *file;
int oflag;
{
if (oflag & O_CREAT)
__fortify_fail ("invalid openat64 call: O_CREAT without mode");
return __openat64 (fd, file, oflag);
}
/* __openat64_2 is a generic wrapper that calls __openat64.
So give a stub warning for that symbol too. */
stub_warning (__openat_2)

29
io/openat64_2.c Normal file
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@ -0,0 +1,29 @@
/* _FORTIFY_SOURCE wrapper for openat64.
Copyright (C) 2013 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
<http://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <stdio.h>
int
__openat64_2 (int fd, const char *file, int oflag)
{
if (oflag & O_CREAT)
__fortify_fail ("invalid openat64 call: O_CREAT without mode");
return __openat64 (fd, file, oflag);
}

29
io/openat_2.c Normal file
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@ -0,0 +1,29 @@
/* _FORTIFY_SOURCE wrapper for openat.
Copyright (C) 2013 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
<http://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <stdio.h>
int
__openat_2 (int fd, const char *file, int oflag)
{
if (oflag & O_CREAT)
__fortify_fail ("invalid openat call: O_CREAT without mode");
return __openat (fd, file, oflag);
}

11
sysdeps/mach/hurd/open.c
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@ -52,20 +52,9 @@ weak_alias (__libc_open, __open)
libc_hidden_weak (__open)
weak_alias (__libc_open, open)
int
__open_2 (file, oflag)
const char *file;
int oflag;
{
if (oflag & O_CREAT)
__fortify_fail ("invalid open call: O_CREAT without mode");
return __open (file, oflag);
}
/* open64 is just the same as open for us. */
weak_alias (__libc_open, __libc_open64)
weak_alias (__libc_open, __open64)
libc_hidden_weak (_open64)
weak_alias (__libc_open, open64)
strong_alias (__open_2, __open64_2)

13
sysdeps/mach/hurd/openat.c
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@ -56,20 +56,7 @@ __openat (fd, file, oflag)
libc_hidden_def (__openat)
weak_alias (__openat, openat)
int
__openat_2 (fd, file, oflag)
int fd;
const char *file;
int oflag;
{
if (oflag & O_CREAT)
__fortify_fail ("invalid openat call: O_CREAT without mode");
return __openat (fd, file, oflag);
}
/* openat64 is just the same as openat for us. */
weak_alias (__openat, __openat64)
libc_hidden_weak (__openat64)
weak_alias (__openat, openat64)
strong_alias (__openat_2, __openat64_2)

2
sysdeps/unix/sysv/linux/Makefile
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@ -152,7 +152,7 @@ endif
ifeq ($(subdir),io)
sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \
sync_file_range open_2 open64_2 fallocate fallocate64
sync_file_range fallocate fallocate64
sysdep_headers += bits/fcntl-linux.h
endif

16
sysdeps/unix/sysv/linux/openat.c
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@ -29,7 +29,6 @@
#ifndef OPENAT
# define OPENAT openat
# define __OPENAT_2 __openat_2
# ifndef __ASSUME_ATFCTS
/* Set errno after a failed call. If BUF is not null,
@ -179,18 +178,3 @@ __OPENAT (fd, file, oflag)
}
libc_hidden_def (__OPENAT)
weak_alias (__OPENAT, OPENAT)
int
__OPENAT_2 (fd, file, oflag)
int fd;
const char *file;
int oflag;
{
if (oflag & O_CREAT)
#define MSG(s) MSG2 (s)
#define MSG2(s) "invalid " #s " call: O_CREAT without mode"
__fortify_fail (MSG (OPENAT));
return __OPENAT (fd, file, oflag);
}

1
sysdeps/unix/sysv/linux/openat64.c
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@ -1,5 +1,4 @@
#define OPENAT openat64
#define __OPENAT_2 __openat64_2
#define MORE_OFLAGS O_LARGEFILE
#include "openat.c"

8
sysdeps/unix/sysv/linux/wordsize-64/openat.c
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@ -1,16 +1,14 @@
#define __openat64 __rename___openat64
#define __openat64_2 __rename___openat64_2
#define __openat64_nocancel __rename___openat64_nocancel
#define openat64 __rename_openat64
#include "../openat.c"
#undef __openat64
#undef __openat64_2
#undef __openat64_nocancel
#undef openat64
weak_alias (__openat, __openat64)
weak_alias (__openat_2, __openat64_2)
weak_alias (__openat_nocancel, __openat64_nocancel)
strong_alias (__openat, __openat64)
hidden_ver (__openat, __openat64)
strong_alias (__openat_nocancel, __openat64_nocancel)
weak_alias (openat, openat64)