view lib/strdup.c @ 40217:a315d09bcec4

alloca, tsearch-tests: Write NULL for the null pointer. * lib/alloca.c (i00afunc): Write NULL instead of 0. * tests/test-tsearch.c (mangle_tree): Likewise.
author Michal Privoznik <mprivozn@redhat.com>
date Sun, 03 Mar 2019 19:34:57 +0100
parents b06060465f09
children
line wrap: on
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/* Copyright (C) 1991, 1996-1998, 2002-2004, 2006-2007, 2009-2019 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
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   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, see <https://www.gnu.org/licenses/>.  */

#ifndef _LIBC
# include <config.h>
#endif

/* Get specification.  */
#include <string.h>

#include <stdlib.h>

#undef __strdup
#ifdef _LIBC
# undef strdup
#endif

#ifndef weak_alias
# define __strdup strdup
#endif

/* Duplicate S, returning an identical malloc'd string.  */
char *
__strdup (const char *s)
{
  size_t len = strlen (s) + 1;
  void *new = malloc (len);

  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