1 /* Copyright (C) 1991, 1996-1998, 2002-2004, 2006-2007, 2009-2012 Free Software
2 Foundation, Inc.
3
4 This file is part of the GNU C Library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
9 any later version.
10
11 This program 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
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License along
17 with this program; if not, see <http://www.gnu.org/licenses/>. */
18
19 #ifndef _LIBC
20 # include <config.h>
21 #endif
22
23 /* Get specification. */
24 #include <string.h>
25
26 #include <stdlib.h>
27
28 #undef __strdup
29 #ifdef _LIBC
30 # undef strdup
31 #endif
32
33 #ifndef weak_alias
34 # define __strdup strdup
35 #endif
36
37 /* Duplicate S, returning an identical malloc'd string. */
38 char *
__strdup(const char * s)39 __strdup (const char *s)
40 {
41 size_t len = strlen (s) + 1;
42 void *new = malloc (len);
43
44 if (new == NULL)
45 return NULL;
46
47 return (char *) memcpy (new, s, len);
48 }
49 #ifdef libc_hidden_def
50 libc_hidden_def (__strdup)
51 #endif
52 #ifdef weak_alias
53 weak_alias (__strdup, strdup)
54 #endif
55