root/maint/gnulib/lib/strdup.c

/* */

DEFINITIONS

1. __strdup

   1 /* Copyright (C) 1991, 1996-1998, 2002-2004, 2006-2007, 2009-2021 Free Software
   2    Foundation, Inc.
   3 
   4    This file is part of the GNU C Library.
   5 
   6    This file is free software: you can redistribute it and/or modify
   7    it under the terms of the GNU Lesser General Public License as
   8    published by the Free Software Foundation; either version 2.1 of the
   9    License, or (at your option) any later version.
  10 
  11    This file 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 Lesser General Public License for more details.
  15 
  16    You should have received a copy of the GNU Lesser General Public License
  17    along with this program.  If not, see <https://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

/* */