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 /* 337c478bd9Sstevel@tonic-gate * Swab bytes 347c478bd9Sstevel@tonic-gate */ 357c478bd9Sstevel@tonic-gate 36*7257d1b4Sraf #pragma weak _swab = swab 377c478bd9Sstevel@tonic-gate 38*7257d1b4Sraf #include "lint.h" 397c478bd9Sstevel@tonic-gate #include <sys/types.h> 407c478bd9Sstevel@tonic-gate #include <stdlib.h> 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate #define STEP (void)((temp = *from++), (*to++ = *from++), (*to++ = temp)) 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate void 467c478bd9Sstevel@tonic-gate swab(const char *src, char *dest, ssize_t n) 477c478bd9Sstevel@tonic-gate { 487c478bd9Sstevel@tonic-gate char temp; 497c478bd9Sstevel@tonic-gate const char *from = (const char *)src; 507c478bd9Sstevel@tonic-gate char *to = (char *)dest; 517c478bd9Sstevel@tonic-gate 527c478bd9Sstevel@tonic-gate if (n <= 1) 537c478bd9Sstevel@tonic-gate return; 547c478bd9Sstevel@tonic-gate n >>= 1; n++; 557c478bd9Sstevel@tonic-gate /* round to multiple of 8 */ 567c478bd9Sstevel@tonic-gate while ((--n) & 07) 577c478bd9Sstevel@tonic-gate STEP; 587c478bd9Sstevel@tonic-gate n >>= 3; 597c478bd9Sstevel@tonic-gate while (--n >= 0) { 607c478bd9Sstevel@tonic-gate STEP; STEP; STEP; STEP; 617c478bd9Sstevel@tonic-gate STEP; STEP; STEP; STEP; 627c478bd9Sstevel@tonic-gate } 637c478bd9Sstevel@tonic-gate } 64