xref: /netbsd-src/sys/lib/libz/zalloc.c (revision c363a9cb62ac8888c384fe0ecac5b88d0f0c02dc)
1 /* $NetBSD: zalloc.c,v 1.7 2009/03/18 16:00:21 cegger Exp $ */
2 
3 /*-
4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Simon Burge.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 
33 #include "zutil.h"
34 #include <lib/libsa/stand.h>
35 
36 /*
37  * A simple implementation of zcalloc and zcfree in terms of the libsa
38  * alloc and free.
39  */
40 
41 voidpf
zcalloc(voidpf opaque,unsigned int items,unsigned int size)42 zcalloc(voidpf opaque, unsigned int items, unsigned int size)
43 {
44 	unsigned int totalsize;
45 
46 	totalsize = items * size;
47 	opaque = alloc(totalsize);
48 	if (opaque != NULL)
49 		memset(opaque, 0, totalsize);
50 	return opaque;
51 }
52 
53 void
zcfree(voidpf opaque,voidpf ptr)54 zcfree(voidpf opaque, voidpf ptr)
55 {
56 
57 	dealloc(ptr, 0);	/* XXX: size not known */
58 }
59