memset.c revision 6515:10dab2b883e0
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 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#pragma ident "%Z%%M% %I% %E% SMI" 28 29/* Copyright (c) 1988 AT&T */ 30/* All Rights Reserved */ 31 32 33#if !defined(_KMDB) && !defined(_BOOT) && !defined(_KERNEL) 34 35#pragma weak memset = _memset 36 37#include "synonyms.h" 38#endif /* !_KMDB && !_BOOT && !_KERNEL */ 39 40#include <sys/types.h> 41 42#if defined(_KERNEL) 43#include <sys/systm.h> 44#elif !defined(_BOOT) 45#include <string.h> 46#endif 47 48#include "string.h" 49 50/* 51 * Set an array of n chars starting at sp to the character c. 52 * Return sp. 53 */ 54void * 55memset(void *sp1, int c, size_t n) 56{ 57 if (n != 0) { 58 unsigned char *sp = sp1; 59 do { 60 *sp++ = (unsigned char)c; 61 } while (--n != 0); 62 } 63 64 return (sp1); 65} 66