1 | /* Copy memory to memory until the specified number of bytes |
2 | has been copied with error checking. Overlap is NOT 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 | void * |
24 | __memcpy_chk (void *dstpp, const void *srcpp, size_t len, size_t dstlen) |
25 | { |
26 | if (__glibc_unlikely (dstlen < len)) |
27 | __chk_fail (); |
28 | |
29 | return memcpy (dstpp, srcpp, len); |
30 | } |
31 | |