1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28*0Sstevel@tonic-gate /* All Rights Reserved */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.7 */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <sys/types.h> 34*0Sstevel@tonic-gate #include <sys/param.h> 35*0Sstevel@tonic-gate #include <sys/acct.h> 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #ifdef uts 38*0Sstevel@tonic-gate float 39*0Sstevel@tonic-gate #else 40*0Sstevel@tonic-gate /* 41*0Sstevel@tonic-gate * For as long as ct is of type comp_t, and comp_t is defined to be of type 42*0Sstevel@tonic-gate * unsigned short, the maximum value of ct will be 2^16-1 ie 65535. Based on 43*0Sstevel@tonic-gate * this input value, the maximum value that expand() can return will therefore 44*0Sstevel@tonic-gate * be 4292870144. A return type of ulong_t ensures we don't overflow. 45*0Sstevel@tonic-gate */ 46*0Sstevel@tonic-gate ulong_t 47*0Sstevel@tonic-gate #endif 48*0Sstevel@tonic-gate expand(comp_t ct) 49*0Sstevel@tonic-gate { 50*0Sstevel@tonic-gate register e; 51*0Sstevel@tonic-gate #ifdef uts 52*0Sstevel@tonic-gate float f; 53*0Sstevel@tonic-gate #else 54*0Sstevel@tonic-gate ulong_t f; 55*0Sstevel@tonic-gate #endif 56*0Sstevel@tonic-gate e = (ct >> 13) & 07; 57*0Sstevel@tonic-gate f = ct & 017777; 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate while (e-- > 0) 60*0Sstevel@tonic-gate #ifdef uts 61*0Sstevel@tonic-gate f *= 8.0; /* can't shift a float */ 62*0Sstevel@tonic-gate #else 63*0Sstevel@tonic-gate f <<=3; 64*0Sstevel@tonic-gate #endif 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate return f; 67*0Sstevel@tonic-gate } 68