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77008252 | 1 | /* Checking strncpy. |
83ffe9cd | 2 | Copyright (C) 2005-2023 Free Software Foundation, Inc. |
77008252 JJ |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
748086b7 | 8 | Software Foundation; either version 3, or (at your option) any later |
77008252 JJ |
9 | version. |
10 | ||
11 | In addition to the permissions in the GNU General Public License, the | |
12 | Free Software Foundation gives you unlimited permission to link the | |
13 | compiled version of this file into combinations with other programs, | |
14 | and to distribute those combinations without any restriction coming | |
15 | from the use of this file. (The General Public License restrictions | |
16 | do apply in other respects; for example, they cover modification of | |
17 | the file, and distribution when not linked into a combine | |
18 | executable.) | |
19 | ||
20 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
21 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
22 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
23 | for more details. | |
24 | ||
748086b7 JJ |
25 | Under Section 7 of GPL version 3, you are granted additional |
26 | permissions described in the GCC Runtime Library Exception, version | |
27 | 3.1, as published by the Free Software Foundation. | |
77008252 | 28 | |
748086b7 JJ |
29 | You should have received a copy of the GNU General Public License and |
30 | a copy of the GCC Runtime Library Exception along with this program; | |
31 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
32 | <http://www.gnu.org/licenses/>. */ | |
77008252 JJ |
33 | |
34 | #include "config.h" | |
35 | #include <ssp/ssp.h> | |
36 | #ifdef HAVE_STRING_H | |
37 | # include <string.h> | |
38 | #endif | |
39 | ||
40 | extern void __chk_fail (void) __attribute__((__noreturn__)); | |
41 | ||
42 | #ifdef HAVE_STRNCPY | |
43 | char * | |
44 | __strncpy_chk (char *__restrict__ dest, const char *__restrict__ src, | |
45 | size_t len, size_t slen) | |
46 | { | |
47 | if (len > slen) | |
48 | __chk_fail (); | |
49 | return strncpy (dest, src, len); | |
50 | } | |
51 | #endif |