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d614a753 | 1 | /* Copyright (C) 1996-2020 Free Software Foundation, Inc. |
c84142e8 UD |
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 | |
41bdb6e2 AJ |
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. | |
c84142e8 UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
c84142e8 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
c84142e8 UD |
17 | |
18 | #ifdef HAVE_CONFIG_H | |
19 | # include "config.h" | |
20 | #endif | |
21 | ||
22 | #include <stdio.h> | |
23 | #include <sys/types.h> | |
24 | ||
25 | #if defined _LIBC || defined STDC_HEADERS | |
26 | # include <stdlib.h> | |
27 | # include <string.h> | |
28 | #else | |
29 | char *malloc (); | |
30 | #endif | |
31 | ||
7551a1e5 UD |
32 | #undef __strndup |
33 | #undef strndup | |
34 | ||
c84142e8 UD |
35 | #ifndef weak_alias |
36 | # define __strndup strndup | |
37 | #endif | |
6dbe2837 RM |
38 | |
39 | char * | |
9d46370c | 40 | __strndup (const char *s, size_t n) |
6dbe2837 | 41 | { |
5a3fba99 UD |
42 | size_t len = __strnlen (s, n); |
43 | char *new = (char *) malloc (len + 1); | |
6dbe2837 RM |
44 | |
45 | if (new == NULL) | |
46 | return NULL; | |
47 | ||
de6b0623 | 48 | new[len] = '\0'; |
111bb972 | 49 | return (char *) memcpy (new, s, len); |
6dbe2837 | 50 | } |
5b070c75 UD |
51 | #ifdef libc_hidden_def |
52 | libc_hidden_def (__strndup) | |
53 | #endif | |
c84142e8 | 54 | #ifdef weak_alias |
6f256968 | 55 | weak_alias (__strndup, strndup) |
c84142e8 | 56 | #endif |