1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sys/systm.h>
28 #include <sys/cmn_err.h>
29 #include <sys/kobj.h>
30 #include <sys/kobj_impl.h>
31 #include <zlib.h>
32
33 struct zchdr {
34 uint_t zch_magic;
35 uint_t zch_size;
36 };
37
38 #define ZCH_MAGIC 0x3cc13cc1
39
40 /*ARGSUSED*/
41 void *
zcalloc(void * opaque,uint_t items,uint_t size)42 zcalloc(void *opaque, uint_t items, uint_t size)
43 {
44 size_t nbytes = sizeof (struct zchdr) + items * size;
45 struct zchdr *z = kobj_zalloc(nbytes, KM_NOWAIT|KM_TMP);
46
47 if (z == NULL)
48 return (NULL);
49
50 z->zch_magic = ZCH_MAGIC;
51 z->zch_size = nbytes;
52
53 return (z + 1);
54 }
55
56 /*ARGSUSED*/
57 void
zcfree(void * opaque,void * ptr)58 zcfree(void *opaque, void *ptr)
59 {
60 struct zchdr *z = ((struct zchdr *)ptr) - 1;
61
62 if (z->zch_magic != ZCH_MAGIC)
63 panic("zcfree region corrupt: hdr=%p ptr=%p", (void *)z, ptr);
64
65 kobj_free(z, z->zch_size);
66 }
67
68 void
zmemcpy(void * dest,const void * source,uint_t len)69 zmemcpy(void *dest, const void *source, uint_t len)
70 {
71 bcopy(source, dest, len);
72 }
73
74 int
zmemcmp(const void * s1,const void * s2,uint_t len)75 zmemcmp(const void *s1, const void *s2, uint_t len)
76 {
77 return (bcmp(s1, s2, len));
78 }
79
80 void
zmemzero(void * dest,uint_t len)81 zmemzero(void *dest, uint_t len)
82 {
83 bzero(dest, len);
84 }
85