10Sstevel@tonic-gate /*
20Sstevel@tonic-gate * CDDL HEADER START
30Sstevel@tonic-gate *
40Sstevel@tonic-gate * The contents of this file are subject to the terms of the
50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
70Sstevel@tonic-gate * with the License.
80Sstevel@tonic-gate *
90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
110Sstevel@tonic-gate * See the License for the specific language governing permissions
120Sstevel@tonic-gate * and limitations under the License.
130Sstevel@tonic-gate *
140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
190Sstevel@tonic-gate *
200Sstevel@tonic-gate * CDDL HEADER END
210Sstevel@tonic-gate */
220Sstevel@tonic-gate /*
23*428Ssl108498 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
240Sstevel@tonic-gate * Use is subject to license terms.
250Sstevel@tonic-gate */
260Sstevel@tonic-gate
270Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
280Sstevel@tonic-gate /* All Rights Reserved */
290Sstevel@tonic-gate
300Sstevel@tonic-gate
310Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.7 */
320Sstevel@tonic-gate
330Sstevel@tonic-gate #include <sys/types.h>
340Sstevel@tonic-gate #include <sys/param.h>
350Sstevel@tonic-gate #include <sys/acct.h>
360Sstevel@tonic-gate
370Sstevel@tonic-gate #ifdef uts
380Sstevel@tonic-gate float
390Sstevel@tonic-gate #else
400Sstevel@tonic-gate /*
410Sstevel@tonic-gate * For as long as ct is of type comp_t, and comp_t is defined to be of type
420Sstevel@tonic-gate * unsigned short, the maximum value of ct will be 2^16-1 ie 65535. Based on
430Sstevel@tonic-gate * this input value, the maximum value that expand() can return will therefore
440Sstevel@tonic-gate * be 4292870144. A return type of ulong_t ensures we don't overflow.
450Sstevel@tonic-gate */
460Sstevel@tonic-gate ulong_t
470Sstevel@tonic-gate #endif
expand(comp_t ct)480Sstevel@tonic-gate expand(comp_t ct)
490Sstevel@tonic-gate {
50*428Ssl108498 int e;
510Sstevel@tonic-gate #ifdef uts
520Sstevel@tonic-gate float f;
530Sstevel@tonic-gate #else
540Sstevel@tonic-gate ulong_t f;
550Sstevel@tonic-gate #endif
560Sstevel@tonic-gate e = (ct >> 13) & 07;
570Sstevel@tonic-gate f = ct & 017777;
580Sstevel@tonic-gate
590Sstevel@tonic-gate while (e-- > 0)
600Sstevel@tonic-gate #ifdef uts
610Sstevel@tonic-gate f *= 8.0; /* can't shift a float */
620Sstevel@tonic-gate #else
630Sstevel@tonic-gate f <<=3;
640Sstevel@tonic-gate #endif
650Sstevel@tonic-gate
660Sstevel@tonic-gate return f;
670Sstevel@tonic-gate }
68