1/* realloc() function that is glibc compatible.
2   Copyright (C) 1997, 2003, 2004 Free Software Foundation, Inc.
3
4   This program is free software; you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 2, or (at your option)
7   any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program; if not, write to the Free Software Foundation,
16   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
17#include <sys/cdefs.h>
18__RCSID("$NetBSD: realloc.c,v 1.2 2016/05/17 14:00:09 christos Exp $");
19
20
21/* written by Jim Meyering */
22
23#ifdef HAVE_CONFIG_H
24# include <config.h>
25#endif
26#undef realloc
27
28#include <stdlib.h>
29
30/* Change the size of an allocated block of memory P to N bytes,
31   with error checking.  If N is zero, change it to 1.  If P is NULL,
32   use malloc.  */
33
34void *
35rpl_realloc (void *p, size_t n)
36{
37  if (n == 0)
38    {
39      n = 1;
40
41      /* In theory realloc might fail, so don't rely on it to free.  */
42      free (p);
43      p = NULL;
44    }
45
46  if (p == NULL)
47    return malloc (n);
48  return realloc (p, n);
49}
50