sys/external/intel-public/acpica/dist/common/getopt.c

   1
   2 /******************************************************************************
   3  *
   4  * Module Name: getopt
   5  *
   6  *****************************************************************************/
   7
   8 /******************************************************************************
   9  *
  10  * 1. Copyright Notice
  11  *
  12  * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
  13  * All rights reserved.
  14  *
  15  * 2. License
  16  *
  17  * 2.1. This is your license from Intel Corp. under its intellectual property
  18  * rights.  You may have additional license terms from the party that provided
  19  * you this software, covering your right to use that party's intellectual
  20  * property rights.
  21  *
  22  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  23  * copy of the source code appearing in this file ("Covered Code") an
  24  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  25  * base code distributed originally by Intel ("Original Intel Code") to copy,
  26  * make derivatives, distribute, use and display any portion of the Covered
  27  * Code in any form, with the right to sublicense such rights; and
  28  *
  29  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  30  * license (with the right to sublicense), under only those claims of Intel
  31  * patents that are infringed by the Original Intel Code, to make, use, sell,
  32  * offer to sell, and import the Covered Code and derivative works thereof
  33  * solely to the minimum extent necessary to exercise the above copyright
  34  * license, and in no event shall the patent license extend to any additions
  35  * to or modifications of the Original Intel Code.  No other license or right
  36  * is granted directly or by implication, estoppel or otherwise;
  37  *
  38  * The above copyright and patent license is granted only if the following
  39  * conditions are met:
  40  *
  41  * 3. Conditions
  42  *
  43  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  44  * Redistribution of source code of any substantial portion of the Covered
  45  * Code or modification with rights to further distribute source must include
  46  * the above Copyright Notice, the above License, this list of Conditions,
  47  * and the following Disclaimer and Export Compliance provision.  In addition,
  48  * Licensee must cause all Covered Code to which Licensee contributes to
  49  * contain a file documenting the changes Licensee made to create that Covered
  50  * Code and the date of any change.  Licensee must include in that file the
  51  * documentation of any changes made by any predecessor Licensee.  Licensee
  52  * must include a prominent statement that the modification is derived,
  53  * directly or indirectly, from Original Intel Code.
  54  *
  55  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  56  * Redistribution of source code of any substantial portion of the Covered
  57  * Code or modification without rights to further distribute source must
  58  * include the following Disclaimer and Export Compliance provision in the
  59  * documentation and/or other materials provided with distribution.  In
  60  * addition, Licensee may not authorize further sublicense of source of any
  61  * portion of the Covered Code, and must include terms to the effect that the
  62  * license from Licensee to its licensee is limited to the intellectual
  63  * property embodied in the software Licensee provides to its licensee, and
  64  * not to intellectual property embodied in modifications its licensee may
  65  * make.
  66  *
  67  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  68  * substantial portion of the Covered Code or modification must reproduce the
  69  * above Copyright Notice, and the following Disclaimer and Export Compliance
  70  * provision in the documentation and/or other materials provided with the
  71  * distribution.
  72  *
  73  * 3.4. Intel retains all right, title, and interest in and to the Original
  74  * Intel Code.
  75  *
  76  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  77  * Intel shall be used in advertising or otherwise to promote the sale, use or
  78  * other dealings in products derived from or relating to the Covered Code
  79  * without prior written authorization from Intel.
  80  *
  81  * 4. Disclaimer and Export Compliance
  82  *
  83  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  84  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  85  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
  86  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
  87  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
  88  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  89  * PARTICULAR PURPOSE.
  90  *
  91  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  92  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  93  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  94  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  95  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  96  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
  97  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  98  * LIMITED REMEDY.
  99  *
 100  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 101  * software or system incorporating such software without first obtaining any
 102  * required license or other approval from the U. S. Department of Commerce or
 103  * any other agency or department of the United States Government.  In the
 104  * event Licensee exports any such software from the United States or
 105  * re-exports any such software from a foreign destination, Licensee shall
 106  * ensure that the distribution and export/re-export of the software is in
 107  * compliance with all laws, regulations, orders, or other restrictions of the
 108  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 109  * any of its subsidiaries will export/re-export any technical data, process,
 110  * software, or service, directly or indirectly, to any country for which the
 111  * United States government or any agency thereof requires an export license,
 112  * other governmental approval, or letter of assurance, without first obtaining
 113  * such license, approval or letter.
 114  *
 115  *****************************************************************************/
 116
 117
 118 #include <stdio.h>
 119 #include <string.h>
 120 #include "acpi.h"
 121 #include "accommon.h"
 122 #include "acapps.h"
 123
 124 #define ERR(szz,czz) if(AcpiGbl_Opterr){fprintf(stderr,"%s%s%c\n",argv[0],szz,czz);}
 125
 126
 127 int   AcpiGbl_Opterr = 1;
 128 int   AcpiGbl_Optind = 1;
 129 int   AcpiGbl_Optopt;
 130 char  *AcpiGbl_Optarg;
 131
 132
 133 /*******************************************************************************
 134  *
 135  * FUNCTION:    AcpiGetopt
 136  *
 137  * PARAMETERS:  argc, argv          - from main
 138  *              opts                - options info list
 139  *
 140  * RETURN:      Option character or EOF
 141  *
 142  * DESCRIPTION: Get the next option
 143  *
 144  ******************************************************************************/
 145
 146 int
 147 AcpiGetopt(
 148     int                     argc,
 149     char                    **argv,
 150     char                    *opts)
 151 {
 152     static int              CurrentCharPtr = 1;
 153     int                     CurrentChar;
 154     char                    *OptsPtr;
 155
 156
 157     if (CurrentCharPtr == 1)
 158     {
 159         if (AcpiGbl_Optind >= argc ||
 160             argv[AcpiGbl_Optind][0] != '-' ||
 161             argv[AcpiGbl_Optind][1] == '\0')
 162         {
 163             return(EOF);
 164         }
 165         else if (strcmp (argv[AcpiGbl_Optind], "--") == 0)
 166         {
 167             AcpiGbl_Optind++;
 168             return(EOF);
 169         }
 170     }
 171
 172     /* Get the option */
 173
 174     CurrentChar =
 175     AcpiGbl_Optopt =
 176     argv[AcpiGbl_Optind][CurrentCharPtr];
 177
 178     /* Make sure that the option is legal */
 179
 180     if (CurrentChar == ':' ||
 181        (OptsPtr = strchr (opts, CurrentChar)) == NULL)
 182     {
 183         ERR (": illegal option -- ", CurrentChar);
 184
 185         if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0')
 186         {
 187             AcpiGbl_Optind++;
 188             CurrentCharPtr = 1;
 189         }
 190
 191         return ('?');
 192     }
 193
 194     /* Option requires an argument? */
 195
 196     if (*++OptsPtr == ':')
 197     {
 198         if (argv[AcpiGbl_Optind][CurrentCharPtr+1] != '\0')
 199         {
 200             AcpiGbl_Optarg = &argv[AcpiGbl_Optind++][CurrentCharPtr+1];
 201         }
 202         else if (++AcpiGbl_Optind >= argc)
 203         {
 204             ERR (": option requires an argument -- ", CurrentChar);
 205
 206             CurrentCharPtr = 1;
 207             return ('?');
 208         }
 209         else
 210         {
 211             AcpiGbl_Optarg = argv[AcpiGbl_Optind++];
 212         }
 213
 214         CurrentCharPtr = 1;
 215     }
 216
 217     /* Option has optional single-char arguments? */
 218
 219     else if (*OptsPtr == '^')
 220     {
 221         if (argv[AcpiGbl_Optind][CurrentCharPtr+1] != '\0')
 222         {
 223             AcpiGbl_Optarg = &argv[AcpiGbl_Optind][CurrentCharPtr+1];
 224         }
 225         else
 226         {
 227             AcpiGbl_Optarg = "^";
 228         }
 229
 230         AcpiGbl_Optind++;
 231         CurrentCharPtr = 1;
 232     }
 233
 234     /* Option with no arguments */
 235
 236     else
 237     {
 238         if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0')
 239         {
 240             CurrentCharPtr = 1;
 241             AcpiGbl_Optind++;
 242         }
 243
 244         AcpiGbl_Optarg = NULL;
 245     }
 246
 247     return (CurrentChar);
 248 }