gnu/dist/texinfo/lib/strdup.c

   1 /*      $NetBSD$        */
   2
   3 /* Copyright (C) 1991, 1996, 1997, 1998, 2002, 2003, 2004 Free Software
   4    Foundation, Inc.
   5
   6    This file is part of the GNU C Library.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2, or (at your option)
  11    any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License along
  19    with this program; if not, write to the Free Software Foundation,
  20    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 # include <config.h>
  24 #endif
  25
  26 #ifndef _LIBC
  27 /* Get specification.  */
  28 # include "strdup.h"
  29 #endif
  30
  31 #include <stdlib.h>
  32 #include <string.h>
  33
  34 #undef __strdup
  35 #undef strdup
  36
  37 #ifndef weak_alias
  38 # define __strdup strdup
  39 #endif
  40
  41 /* Duplicate S, returning an identical malloc'd string.  */
  42 char *
  43 __strdup (const char *s)
  44 {
  45   size_t len = strlen (s) + 1;
  46   void *new = malloc (len);
  47
  48   if (new == NULL)
  49     return NULL;
  50
  51   return (char *) memcpy (new, s, len);
  52 }
  53 #ifdef libc_hidden_def
  54 libc_hidden_def (__strdup)
  55 #endif
  56 #ifdef weak_alias
  57 weak_alias (__strdup, strdup)
  58 #endif