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zalloc.c revision 1.6.14.1
      1  1.6.14.1       jym /* $NetBSD: zalloc.c,v 1.6.14.1 2009/05/13 17:22:16 jym Exp $ */
      2       1.1    simonb 
      3       1.1    simonb /*-
      4       1.1    simonb  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5       1.1    simonb  * All rights reserved.
      6       1.1    simonb  *
      7       1.1    simonb  * This code is derived from software contributed to The NetBSD Foundation
      8       1.1    simonb  * by Simon Burge.
      9       1.1    simonb  *
     10       1.1    simonb  * Redistribution and use in source and binary forms, with or without
     11       1.1    simonb  * modification, are permitted provided that the following conditions
     12       1.1    simonb  * are met:
     13       1.1    simonb  * 1. Redistributions of source code must retain the above copyright
     14       1.1    simonb  *    notice, this list of conditions and the following disclaimer.
     15       1.1    simonb  * 2. Redistributions in binary form must reproduce the above copyright
     16       1.1    simonb  *    notice, this list of conditions and the following disclaimer in the
     17       1.1    simonb  *    documentation and/or other materials provided with the distribution.
     18       1.1    simonb  *
     19       1.1    simonb  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20       1.1    simonb  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21       1.1    simonb  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22       1.1    simonb  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23       1.1    simonb  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24       1.1    simonb  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25       1.1    simonb  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26       1.1    simonb  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27       1.1    simonb  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28       1.1    simonb  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29       1.1    simonb  * POSSIBILITY OF SUCH DAMAGE.
     30       1.1    simonb  */
     31       1.1    simonb 
     32       1.1    simonb 
     33       1.1    simonb #include "zutil.h"
     34       1.3   thorpej #include <lib/libsa/stand.h>
     35       1.1    simonb 
     36       1.1    simonb /*
     37       1.1    simonb  * A simple implementation of zcalloc and zcfree in terms of the libsa
     38       1.1    simonb  * alloc and free.
     39       1.1    simonb  */
     40       1.1    simonb 
     41       1.1    simonb voidpf
     42       1.5   tsutsui zcalloc(voidpf opaque, unsigned int items, unsigned int size)
     43       1.1    simonb {
     44       1.5   tsutsui 	unsigned int totalsize;
     45       1.1    simonb 
     46       1.1    simonb 	totalsize = items * size;
     47       1.1    simonb 	opaque = alloc(totalsize);
     48       1.1    simonb 	if (opaque != NULL)
     49  1.6.14.1       jym 		memset(opaque, 0, totalsize);
     50       1.5   tsutsui 	return opaque;
     51       1.1    simonb }
     52       1.1    simonb 
     53       1.1    simonb void
     54       1.5   tsutsui zcfree(voidpf opaque, voidpf ptr)
     55       1.1    simonb {
     56       1.5   tsutsui 
     57       1.4  christos 	dealloc(ptr, 0);	/* XXX: size not known */
     58       1.1    simonb }
     59