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 * 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 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 69 zmemcpy(void *dest, const void *source, uint_t len) 70 { 71 bcopy(source, dest, len); 72 } 73 74 int 75 zmemcmp(const void *s1, const void *s2, uint_t len) 76 { 77 return (bcmp(s1, s2, len)); 78 } 79 80 void 81 zmemzero(void *dest, uint_t len) 82 { 83 bzero(dest, len); 84 } 85