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