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zalloc.c revision 1.5.8.1
      1  1.5.8.1      yamt /* $NetBSD: zalloc.c,v 1.5.8.1 2008/05/18 12:35:22 yamt 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      1.1    simonb 		bzero(opaque, 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