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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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19
io/open.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1991,1995,1996,1997,2002,2007 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
@ -20,6 +20,9 @@
#include <fcntl.h>
#include <stdarg.h>
#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. */
@ -51,4 +54,18 @@ libc_hidden_def (__open)
stub_warning (open)
weak_alias (__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);
}
stub_warning (__open_2)
#include <stub-tag.h>