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* Makerules (sysd-rules): Define PTW for ptw-* files.

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* Versions: Define GLIBC_2.7 for libc.
	* include/stdio.h: Declare __fortify_fail.
	* debug/fortify_fail.c: New file.
	* debug/Makefile (routines): Add fortify_fail.
	* debug/chk_fail.c: Use __fortify_fail.
	* debug/stack_chk_fail.c: Likewise.
	* io/Versions: Export __open_2, __open64_2, __openat_2, and
	__openat64_2 for GLIBC_2.7.
	* io/fcntl.h: When compiling with fortification, include bits/fcntl2.h.
	* io/open.c: Define *_2 variant of function which checks for O_CREAT
	and fails if necessary.
	* io/open64.c: Likewise.
	* io/openat.c: Likewise.
	* io/openat64.c: Likewise.
	* sysdeps/unix/sysv/linux/open64.c: Likewise.
	* sysdeps/unix/sysv/linux/openat.c: Likewise.
	* sysdeps/unix/sysv/linux/openat64.c: Likewise.
	* io/bits/fcntl2.h: New file.
	* include/fcntl.h: Declare __open_2, __open64_2, __openat_2, and
	__openat64_2.
	* include/bits/fcntl2.h: New file.
	* sysdeps/unix/sysv/linux/Makefile [subdir=io] (sysdep_routines):
	Add open_2.
	* sysdeps/unix/sysv/linux/open_2.c: New file.
This commit is contained in:
Ulrich Drepper
2007-05-24 23:55:28 +00:00
parent 5a8075b116
commit ddfd053577
22 changed files with 383 additions and 30 deletions
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18
sysdeps/unix/sysv/linux/openat.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
/* Copyright (C) 2005, 2006, 2007 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
@ -30,6 +30,7 @@
#ifndef OPENAT
# define OPENAT openat
# define __OPENAT_2 __openat_2
# ifndef __ASSUME_ATFCTS
/* Set errno after a failed call. If BUF is not null,
@ -173,3 +174,18 @@ __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);
}