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 (c) 2001 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <string.h>
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate #include "options.h"
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate static uchar_t bitlocation[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate * Create a bytemask to store the command line options.
37*0Sstevel@tonic-gate */
38*0Sstevel@tonic-gate void
set_options_mask(options * msk,char * str)39*0Sstevel@tonic-gate set_options_mask(options *msk, char *str)
40*0Sstevel@tonic-gate {
41*0Sstevel@tonic-gate int i;
42*0Sstevel@tonic-gate (void) memset(msk, 0, sizeof (*msk));
43*0Sstevel@tonic-gate for (i = 0; str[i] != 0; i++) {
44*0Sstevel@tonic-gate add_option(msk, str[i]);
45*0Sstevel@tonic-gate }
46*0Sstevel@tonic-gate }
47*0Sstevel@tonic-gate
48*0Sstevel@tonic-gate void
add_option(options * msk,char option)49*0Sstevel@tonic-gate add_option(options *msk, char option)
50*0Sstevel@tonic-gate {
51*0Sstevel@tonic-gate uint_t loc;
52*0Sstevel@tonic-gate loc = (uint_t)option;
53*0Sstevel@tonic-gate loc &= 0x7f;
54*0Sstevel@tonic-gate /* put option into the correct bucket */
55*0Sstevel@tonic-gate msk->bitmap[loc >> 3] |= bitlocation[loc & 7];
56*0Sstevel@tonic-gate }
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate /*
59*0Sstevel@tonic-gate * Compare the bytemask of the command line options used with
60*0Sstevel@tonic-gate * acceptable options. If an invalid option is found use it as
61*0Sstevel@tonic-gate * the return value.
62*0Sstevel@tonic-gate */
63*0Sstevel@tonic-gate int
compare_options_mask(options * msk,options * specified)64*0Sstevel@tonic-gate compare_options_mask(options *msk, options *specified)
65*0Sstevel@tonic-gate {
66*0Sstevel@tonic-gate int i, j;
67*0Sstevel@tonic-gate uchar_t bmap = 0;
68*0Sstevel@tonic-gate
69*0Sstevel@tonic-gate for (i = 0; i < 16; i++) {
70*0Sstevel@tonic-gate if (msk->bitmap[i] == specified->bitmap[i])
71*0Sstevel@tonic-gate continue;
72*0Sstevel@tonic-gate bmap = msk->bitmap[i] | specified->bitmap[i];
73*0Sstevel@tonic-gate bmap ^= msk->bitmap[i];
74*0Sstevel@tonic-gate if (bmap)
75*0Sstevel@tonic-gate break;
76*0Sstevel@tonic-gate }
77*0Sstevel@tonic-gate if (i == 16) {
78*0Sstevel@tonic-gate /* no invalid options found */
79*0Sstevel@tonic-gate return (0);
80*0Sstevel@tonic-gate }
81*0Sstevel@tonic-gate
82*0Sstevel@tonic-gate for (j = 0; j < 8; j++) {
83*0Sstevel@tonic-gate if (bmap & bitlocation[j])
84*0Sstevel@tonic-gate break;
85*0Sstevel@tonic-gate }
86*0Sstevel@tonic-gate return ((i*8) + j);
87*0Sstevel@tonic-gate }
88