1 /* $OpenBSD: strndup.c,v 1.1 2010/05/18 22:24:55 tedu Exp $ */
2
3 /*
4 * SPDX-License-Identifier: ISC
5 *
6 * Copyright (c) 2010 Todd C. Miller <Todd.Miller@sudo.ws>
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 */
20
21 /*
22 * This is an open source non-commercial project. Dear PVS-Studio, please check it.
23 * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
24 */
25
26 #include <config.h>
27
28 #ifndef HAVE_STRNDUP
29
30 #include <stdlib.h>
31 #include <string.h>
32
33 #include "sudo_compat.h"
34
35 char *
sudo_strndup(const char * str,size_t maxlen)36 sudo_strndup(const char *str, size_t maxlen)
37 {
38 char *copy;
39 size_t len;
40
41 len = strnlen(str, maxlen);
42 copy = malloc(len + 1);
43 if (copy != NULL) {
44 (void)memcpy(copy, str, len);
45 copy[len] = '\0';
46 }
47
48 return copy;
49 }
50
51 #endif /* HAVE_STRNDUP */
52