8f2a5a0b40
We only need one logging API, and I prefer the one that does no allocation and is thus safe to use in any context. Also use O_CLOEXEC when opening the /dev/log files. Move everything logging-related into one header file. Change-Id: Ic1e3ea8e9b910dc29df351bff6c0aa4db26fbb58
57 lines
2.1 KiB
C++
57 lines
2.1 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.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "libc_logging.h"
|
|
|
|
/*
|
|
* __fgets_chk. Called in place of fgets() when we know the
|
|
* size of the buffer we're writing into.
|
|
*
|
|
* See
|
|
* http://gcc.gnu.org/onlinedocs/gcc/Object-Size-Checking.html
|
|
* for details.
|
|
*
|
|
* This fgets check is called if _FORTIFY_SOURCE is defined and
|
|
* greater than 0.
|
|
*/
|
|
extern "C" char *__fgets_chk(char *dest, int supplied_size,
|
|
FILE *stream, size_t dest_len_from_compiler)
|
|
{
|
|
if (supplied_size < 0) {
|
|
__fortify_chk_fail("fgets buffer size less than 0", 0);
|
|
}
|
|
|
|
if (((size_t) supplied_size) > dest_len_from_compiler) {
|
|
__fortify_chk_fail("fgets buffer overflow", 0);
|
|
}
|
|
|
|
return fgets(dest, supplied_size, stream);
|
|
}
|