1 | /* Copy memory to memory until the specified number of bytes |
2 | has been copied with error checking. Overlap is handled correctly. |
3 | Copyright (C) 1991-2022 Free Software Foundation, Inc. |
4 | This file is part of the GNU C Library. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | #include <string.h> |
21 | #include <memcopy.h> |
22 | |
23 | #ifndef MEMMOVE_CHK |
24 | # define MEMMOVE_CHK __memmove_chk |
25 | #endif |
26 | |
27 | void * |
28 | MEMMOVE_CHK (void *dest, const void *src, size_t len, size_t destlen) |
29 | { |
30 | if (__glibc_unlikely (destlen < len)) |
31 | __chk_fail (); |
32 | |
33 | return memmove (dest, src, len); |
34 | } |
35 | |