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strdup.c
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1 /* Copyright (C) 1991, 1996-1998, 2002-2004, 2006-2007, 2009-2014 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 *
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
malloc
void * malloc(YYSIZE_T)
__strdup
#define __strdup
Copyright (C) 1991, 1996-1998, 2002-2004, 2006-2007, 2009-2014 Free Software Foundation,...
Definition: strdup.c:34
strdup
char * strdup()