1
2/******************************************************************************
3 *
4 * Module Name: getopt
5 * $Revision: 1.8 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999 - 2005, Intel Corp.
14 * All rights reserved.
15 *
16 * 2. License
17 *
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
21 * property rights.
22 *
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
29 *
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
38 *
39 * The above copyright and patent license is granted only if the following
40 * conditions are met:
41 *
42 * 3. Conditions
43 *
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
55 *
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
66 * make.
67 *
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
72 * distribution.
73 *
74 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * Intel Code.
76 *
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
81 *
82 * 4. Disclaimer and Export Compliance
83 *
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * PARTICULAR PURPOSE.
91 *
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * LIMITED REMEDY.
100 *
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
115 *
116 *****************************************************************************/
117
118
119#include <stdio.h>
120#include <string.h>
121
122#define ERR(szz,czz) if(AcpiGbl_Opterr){fprintf(stderr,"%s%s%c\n",argv[0],szz,czz);}
123
124
125int AcpiGbl_Opterr = 1;
126int AcpiGbl_Optind = 1;
127int AcpiGbl_Optopt;
128char *AcpiGbl_Optarg;
129
130
131/*******************************************************************************
132 *
133 * FUNCTION: AcpiGetopt
134 *
135 * PARAMETERS: argc, argv - from main
136 * opts - options info list
137 *
138 * RETURN: Option character or EOF
139 *
140 * DESCRIPTION: Get the next option
141 *
142 ******************************************************************************/
143
144int
145AcpiGetopt(
146 int argc,
147 char **argv,
148 char *opts)
149{
150 static int CurrentCharPtr = 1;
151 int CurrentChar;
152 char *OptsPtr;
153
154
155 if (CurrentCharPtr == 1)
156 {
157 if (AcpiGbl_Optind >= argc ||
158 argv[AcpiGbl_Optind][0] != '-' ||
159 argv[AcpiGbl_Optind][1] == '\0')
160 {
161 return(EOF);
162 }
163 else if (strcmp (argv[AcpiGbl_Optind], "--") == 0)
164 {
165 AcpiGbl_Optind++;
166 return(EOF);
167 }
168 }
169
170 /* Get the option */
171
172 CurrentChar =
173 AcpiGbl_Optopt =
174 argv[AcpiGbl_Optind][CurrentCharPtr];
175
176 /* Make sure that the option is legal */
177
178 if (CurrentChar == ':' ||
179 (OptsPtr = strchr (opts, CurrentChar)) == NULL)
180 {
181 ERR (": illegal option -- ", CurrentChar);
182
183 if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0')
184 {
185 AcpiGbl_Optind++;
186 CurrentCharPtr = 1;
187 }
188
189 return ('?');
190 }
191
192 /* Option requires an argument? */
193
194 if (*++OptsPtr == ':')
195 {
196 if (argv[AcpiGbl_Optind][CurrentCharPtr+1] != '\0')
197 {
198 AcpiGbl_Optarg = &argv[AcpiGbl_Optind++][CurrentCharPtr+1];
199 }
200 else if (++AcpiGbl_Optind >= argc)
201 {
202 ERR (": option requires an argument -- ", CurrentChar);
203
204 CurrentCharPtr = 1;
205 return ('?');
206 }
207 else
208 {
209 AcpiGbl_Optarg = argv[AcpiGbl_Optind++];
210 }
211
212 CurrentCharPtr = 1;
213 }
214
215 /* Option has optional single-char arguments? */
216
217 else if (*OptsPtr == '^')
218 {
219 if (argv[AcpiGbl_Optind][CurrentCharPtr+1] != '\0')
220 {
221 AcpiGbl_Optarg = &argv[AcpiGbl_Optind][CurrentCharPtr+1];
222 }
223 else
224 {
225 AcpiGbl_Optarg = "^";
226 }
227
228 AcpiGbl_Optind++;
229 CurrentCharPtr = 1;
230 }
231
232 /* Option with no arguments */
233
234 else
235 {
236 if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0')
237 {
238 CurrentCharPtr = 1;
239 AcpiGbl_Optind++;
240 }
241
242 AcpiGbl_Optarg = NULL;
243 }
244
245 return (CurrentChar);
246}