54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
|
/* Checking mempcpy.
|
||
|
|
Copyright (C) 2005 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This file is part of GCC.
|
||
|
|
|
||
|
|
GCC is free software; you can redistribute it and/or modify it under
|
||
|
|
the terms of the GNU General Public License as published by the Free
|
||
|
|
Software Foundation; either version 2, or (at your option) any later
|
||
|
|
version.
|
||
|
|
|
||
|
|
In addition to the permissions in the GNU General Public License, the
|
||
|
|
Free Software Foundation gives you unlimited permission to link the
|
||
|
|
compiled version of this file into combinations with other programs,
|
||
|
|
and to distribute those combinations without any restriction coming
|
||
|
|
from the use of this file. (The General Public License restrictions
|
||
|
|
do apply in other respects; for example, they cover modification of
|
||
|
|
the file, and distribution when not linked into a combine
|
||
|
|
executable.)
|
||
|
|
|
||
|
|
GCC 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 General Public License
|
||
|
|
for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with GCC; see the file COPYING. If not, write to the Free
|
||
|
|
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
|
||
|
|
02110-1301, USA. */
|
||
|
|
|
||
|
|
/* As a special exception, if you link this library with files compiled with
|
||
|
|
GCC to produce an executable, this does not cause the resulting executable
|
||
|
|
to be covered by the GNU General Public License. This exception does not
|
||
|
|
however invalidate any other reasons why the executable file might be
|
||
|
|
covered by the GNU General Public License. */
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
#include <ssp/ssp.h>
|
||
|
|
#ifdef HAVE_STRING_H
|
||
|
|
# include <string.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
extern void __chk_fail (void) __attribute__((__noreturn__));
|
||
|
|
|
||
|
|
#ifdef HAVE_MEMPCPY
|
||
|
|
void *
|
||
|
|
__mempcpy_chk (void *__restrict__ dest, const void *__restrict__ src,
|
||
|
|
size_t len, size_t slen)
|
||
|
|
{
|
||
|
|
if (len > slen)
|
||
|
|
__chk_fail ();
|
||
|
|
return memcpy (dest, src, len) + len;
|
||
|
|
}
|
||
|
|
#endif
|