17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 51d530678Sraf * Common Development and Distribution License (the "License"). 61d530678Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 211d530678Sraf 227c478bd9Sstevel@tonic-gate /* 237257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #include <stdlib.h> 287c478bd9Sstevel@tonic-gate #include <string.h> 29*31c6d826SRichard Lowe #include <errno.h> 30*31c6d826SRichard Lowe 317c478bd9Sstevel@tonic-gate /* 327c478bd9Sstevel@tonic-gate * calloc - allocate and clear memory block 337c478bd9Sstevel@tonic-gate */ 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate void * 367c478bd9Sstevel@tonic-gate calloc(size_t num, size_t size) 377c478bd9Sstevel@tonic-gate { 387c478bd9Sstevel@tonic-gate void *mp; 39*31c6d826SRichard Lowe size_t total; 407c478bd9Sstevel@tonic-gate 41*31c6d826SRichard Lowe if (num == 0 || size == 0) { 42*31c6d826SRichard Lowe total = 0; 43*31c6d826SRichard Lowe } else { 44*31c6d826SRichard Lowe total = num * size; 45*31c6d826SRichard Lowe 46*31c6d826SRichard Lowe /* check for overflow */ 47*31c6d826SRichard Lowe if ((total / num) != size) { 48*31c6d826SRichard Lowe errno = ENOMEM; 49*31c6d826SRichard Lowe return (NULL); 50*31c6d826SRichard Lowe } 51*31c6d826SRichard Lowe } 52*31c6d826SRichard Lowe 53*31c6d826SRichard Lowe mp = malloc(total); 547c478bd9Sstevel@tonic-gate if (mp == NULL) 557c478bd9Sstevel@tonic-gate return (NULL); 56*31c6d826SRichard Lowe (void) memset(mp, 0, total); 577c478bd9Sstevel@tonic-gate return (mp); 587c478bd9Sstevel@tonic-gate } 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 617c478bd9Sstevel@tonic-gate void 627c478bd9Sstevel@tonic-gate cfree(void *p, size_t num, size_t size) 637c478bd9Sstevel@tonic-gate { 647c478bd9Sstevel@tonic-gate free(p); 657c478bd9Sstevel@tonic-gate } 66