532d6f09b1
Give the compiler some hints that these error conditions are unlikely to occur in practice. Change-Id: Ifaf7322a12120ef663c8315c1a18c2dcbe4bda23
50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
/*
|
|
* Copyright (C) 2012 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#undef _FORTIFY_SOURCE
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include "libc_logging.h"
|
|
#include <stdlib.h>
|
|
|
|
/*
|
|
* Runtime implementation of __umask_chk.
|
|
*
|
|
* Validate that umask is called with sane mode.
|
|
*
|
|
* This umask check is called if _FORTIFY_SOURCE is defined and
|
|
* greater than 0.
|
|
*/
|
|
extern "C" mode_t __umask_chk(mode_t mode) {
|
|
if (__predict_false((mode & 0777) != mode)) {
|
|
__fortify_chk_fail("umask called with invalid mask", 0);
|
|
}
|
|
|
|
return umask(mode);
|
|
}
|