-/* strdup.c -- return a newly allocated copy of a string
- Copyright (C) 1990, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996-1998, 2002-2004, 2006-2007, 2009-2011 Free Software
+ Foundation, Inc.
+
+ This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-#if HAVE_CONFIG_H
+#ifndef _LIBC
# include <config.h>
#endif
-#ifdef STDC_HEADERS
-# include <string.h>
-# include <stdlib.h>
-#else
-char *malloc ();
-char *strcpy ();
+/* Get specification. */
+#include <string.h>
+
+#include <stdlib.h>
+
+#undef __strdup
+#ifdef _LIBC
+# undef strdup
#endif
-/* Return a newly allocated copy of STR,
- or 0 if out of memory. */
+#ifndef weak_alias
+# define __strdup strdup
+#endif
+/* Duplicate S, returning an identical malloc'd string. */
char *
-strdup (const char *str)
+__strdup (const char *s)
{
- char *newstr;
+ size_t len = strlen (s) + 1;
+ void *new = malloc (len);
- newstr = (char *) malloc (strlen (str) + 1);
- if (newstr)
- strcpy (newstr, str);
- return newstr;
+ if (new == NULL)
+ return NULL;
+
+ return (char *) memcpy (new, s, len);
}
+#ifdef libc_hidden_def
+libc_hidden_def (__strdup)
+#endif
+#ifdef weak_alias
+weak_alias (__strdup, strdup)
+#endif