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zalloc.c revision 1.2
      1  1.2  simonb /* $NetBSD: zalloc.c,v 1.2 1999/11/12 12:12:13 simonb 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  * 3. All advertising materials mentioning features or use of this software
     19  1.1  simonb  *    must display the following acknowledgement:
     20  1.1  simonb  *        This product includes software developed by the NetBSD
     21  1.1  simonb  *        Foundation, Inc. and its contributors.
     22  1.1  simonb  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  1.1  simonb  *    contributors may be used to endorse or promote products derived
     24  1.1  simonb  *    from this software without specific prior written permission.
     25  1.1  simonb  *
     26  1.1  simonb  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  1.1  simonb  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  1.1  simonb  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  1.1  simonb  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  1.1  simonb  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  1.1  simonb  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  1.1  simonb  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  1.1  simonb  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  1.1  simonb  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  1.1  simonb  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  1.1  simonb  * POSSIBILITY OF SUCH DAMAGE.
     37  1.1  simonb  */
     38  1.1  simonb 
     39  1.1  simonb 
     40  1.1  simonb #include "zutil.h"
     41  1.1  simonb 
     42  1.1  simonb /*
     43  1.1  simonb  * A simple implementation of zcalloc and zcfree in terms of the libsa
     44  1.1  simonb  * alloc and free.
     45  1.1  simonb  */
     46  1.1  simonb 
     47  1.1  simonb voidpf
     48  1.1  simonb zcalloc(opaque, items, size)
     49  1.1  simonb 	voidpf opaque;
     50  1.1  simonb 	unsigned items;
     51  1.1  simonb 	unsigned size;
     52  1.1  simonb {
     53  1.1  simonb 	unsigned totalsize;
     54  1.1  simonb 
     55  1.1  simonb 	totalsize = items * size;
     56  1.1  simonb 	opaque = alloc(totalsize);
     57  1.1  simonb 	if (opaque != NULL)
     58  1.1  simonb 		bzero(opaque, totalsize);
     59  1.1  simonb 	return(opaque);
     60  1.1  simonb }
     61  1.1  simonb 
     62  1.1  simonb void
     63  1.1  simonb zcfree(opaque, ptr)
     64  1.1  simonb 	voidpf opaque;
     65  1.1  simonb 	voidpf ptr;
     66  1.1  simonb {
     67  1.1  simonb 	free(ptr, 0);	/* XXX: size not known */
     68  1.1  simonb }
     69