1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/* Copy memory to memory until the specified number of bytes
has been copied with error checking. Overlap is handled correctly.
Copyright (C) 1991-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Torbjorn Granlund (tege@sics.se).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <memcopy.h>
#include <pagecopy.h>
#ifndef MEMMOVE_CHK
# define MEMMOVE_CHK __memmove_chk
#endif
void *
MEMMOVE_CHK (dest, src, len, destlen)
void *dest;
const void *src;
size_t len;
size_t destlen;
{
if (__builtin_expect (destlen < len, 0))
__chk_fail ();
return memmove (dest, src, len);
}
|
