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  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 - 2010, 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. #include "acpi.h"
  118. #include "accommon.h"
  119. #include "acapps.h"
  120.  
  121. #include <stdio.h>
  122. #include <string.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][(int) (CurrentCharPtr+1)] != '\0')
  199.         {
  200.             AcpiGbl_Optarg = &argv[AcpiGbl_Optind++][(int) (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][(int) (CurrentCharPtr+1)] != '\0')
  222.         {
  223.             AcpiGbl_Optarg = &argv[AcpiGbl_Optind][(int) (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. }
  249.