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 5*7257d1b4Sraf * Common Development and Distribution License (the "License"). 6*7257d1b4Sraf * 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 */ 21*7257d1b4Sraf 227c478bd9Sstevel@tonic-gate /* 23*7257d1b4Sraf * 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 /* Copyright (c) 1988 AT&T */ 287c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 297c478bd9Sstevel@tonic-gate 30*7257d1b4Sraf #pragma ident "%Z%%M% %I% %E% SMI" 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate #if !defined(_KMDB) && !defined(_KERNEL) 337c478bd9Sstevel@tonic-gate 34*7257d1b4Sraf #pragma weak _memmove = memmove 357c478bd9Sstevel@tonic-gate 36*7257d1b4Sraf #include "lint.h" 377c478bd9Sstevel@tonic-gate #endif /* !_KMDB && !_KERNEL */ 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate #include <sys/types.h> 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate #if defined(_KERNEL) 427c478bd9Sstevel@tonic-gate #include <sys/systm.h> 437c478bd9Sstevel@tonic-gate #else 447c478bd9Sstevel@tonic-gate #include <string.h> 457c478bd9Sstevel@tonic-gate #include <memory.h> 467c478bd9Sstevel@tonic-gate #endif 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate /* 497c478bd9Sstevel@tonic-gate * Copy s0 to s, always copy n bytes. 507c478bd9Sstevel@tonic-gate * Return s 517c478bd9Sstevel@tonic-gate * Copying between objects that overlap will take place correctly 527c478bd9Sstevel@tonic-gate */ 537c478bd9Sstevel@tonic-gate void * 547c478bd9Sstevel@tonic-gate memmove(void *s, const void *s0, size_t n) 557c478bd9Sstevel@tonic-gate { 567c478bd9Sstevel@tonic-gate if (n != 0) { 577c478bd9Sstevel@tonic-gate char *s1 = s; 587c478bd9Sstevel@tonic-gate const char *s2 = s0; 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate if (s1 <= s2) { 617c478bd9Sstevel@tonic-gate do { 627c478bd9Sstevel@tonic-gate *s1++ = *s2++; 637c478bd9Sstevel@tonic-gate } while (--n != 0); 647c478bd9Sstevel@tonic-gate } else { 657c478bd9Sstevel@tonic-gate s2 += n; 667c478bd9Sstevel@tonic-gate s1 += n; 677c478bd9Sstevel@tonic-gate do { 687c478bd9Sstevel@tonic-gate *--s1 = *--s2; 697c478bd9Sstevel@tonic-gate } while (--n != 0); 707c478bd9Sstevel@tonic-gate } 717c478bd9Sstevel@tonic-gate } 727c478bd9Sstevel@tonic-gate return (s); 737c478bd9Sstevel@tonic-gate } 74