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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1989 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* from UCB 4.2 83/06/27 */
/*
* Swab bytes
* Jeffrey Mogul, Stanford
*/
void
swab(from, to, n)
register char *from, *to;
register int n;
{
register unsigned long temp;
if (n <= 1)
return;
n >>= 1; n++;
#define STEP temp = *from++,*to++ = *from++,*to++ = temp
/* round to multiple of 8 */
while ((--n) & 07)
STEP;
n >>= 3;
while (--n >= 0) {
STEP; STEP; STEP; STEP;
STEP; STEP; STEP; STEP;
}
}
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