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      1 /* Copyright (C) 1991, 1996, 1997, 1998, 2002, 2003, 2004 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 2, 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, write to the Free Software Foundation,
     18    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
     19 
     20 #ifdef HAVE_CONFIG_H
     21 # include <config.h>
     22 #endif
     23 
     24 #ifndef _LIBC
     25 /* Get specification.  */
     26 # include "strdup.h"
     27 #endif
     28 
     29 #include <stdlib.h>
     30 #include <string.h>
     31 
     32 #undef __strdup
     33 #undef strdup
     34 
     35 #ifndef weak_alias
     36 # define __strdup strdup
     37 #endif
     38 
     39 /* Duplicate S, returning an identical malloc'd string.  */
     40 char *
     41 __strdup (const char *s)
     42 {
     43   size_t len = strlen (s) + 1;
     44   void *new = malloc (len);
     45 
     46   if (new == NULL)
     47     return NULL;
     48 
     49   return (char *) memcpy (new, s, len);
     50 }
     51 #ifdef libc_hidden_def
     52 libc_hidden_def (__strdup)
     53 #endif
     54 #ifdef weak_alias
     55 weak_alias (__strdup, strdup)
     56 #endif
     57