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