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/******************************************************************************
*
* Module Name: getopt
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2013, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
/*
* ACPICA getopt() implementation
*
* Option strings:
* "f" - Option has no arguments
* "f:" - Option requires an argument
* "f^" - Option has optional single-char sub-options
* "f|" - Option has required single-char sub-options
*/
#include <stdio.h>
#include <string.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <contrib/dev/acpica/include/acapps.h>
#define ACPI_OPTION_ERROR(msg, badchar) \
if (AcpiGbl_Opterr) {fprintf (stderr, "%s%c\n", msg, badchar);}
int AcpiGbl_Opterr = 1;
int AcpiGbl_Optind = 1;
int AcpiGbl_SubOptChar = 0;
char *AcpiGbl_Optarg;
static int CurrentCharPtr = 1;
/*******************************************************************************
*
* FUNCTION: AcpiGetoptArgument
*
* PARAMETERS: argc, argv - from main
*
* RETURN: 0 if an argument was found, -1 otherwise. Sets AcpiGbl_Optarg
* to point to the next argument.
*
* DESCRIPTION: Get the next argument. Used to obtain arguments for the
* two-character options after the original call to AcpiGetopt.
* Note: Either the argument starts at the next character after
* the option, or it is pointed to by the next argv entry.
* (After call to AcpiGetopt, we need to backup to the previous
* argv entry).
*
******************************************************************************/
int
AcpiGetoptArgument (
int argc,
char **argv)
{
AcpiGbl_Optind--;
CurrentCharPtr++;
if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0')
{
AcpiGbl_Optarg = &argv[AcpiGbl_Optind++][(int) (CurrentCharPtr+1)];
}
else if (++AcpiGbl_Optind >= argc)
{
ACPI_OPTION_ERROR ("Option requires an argument: -", 'v');
CurrentCharPtr = 1;
return (-1);
}
else
{
AcpiGbl_Optarg = argv[AcpiGbl_Optind++];
}
CurrentCharPtr = 1;
return (0);
}
/*******************************************************************************
*
* FUNCTION: AcpiGetopt
*
* PARAMETERS: argc, argv - from main
* opts - options info list
*
* RETURN: Option character or EOF
*
* DESCRIPTION: Get the next option
*
******************************************************************************/
int
AcpiGetopt(
int argc,
char **argv,
char *opts)
{
int CurrentChar;
char *OptsPtr;
if (CurrentCharPtr == 1)
{
if (AcpiGbl_Optind >= argc ||
argv[AcpiGbl_Optind][0] != '-' ||
argv[AcpiGbl_Optind][1] == '\0')
{
return (EOF);
}
else if (strcmp (argv[AcpiGbl_Optind], "--") == 0)
{
AcpiGbl_Optind++;
return (EOF);
}
}
/* Get the option */
CurrentChar = argv[AcpiGbl_Optind][CurrentCharPtr];
/* Make sure that the option is legal */
if (CurrentChar == ':' ||
(OptsPtr = strchr (opts, CurrentChar)) == NULL)
{
ACPI_OPTION_ERROR ("Illegal option: -", CurrentChar);
if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0')
{
AcpiGbl_Optind++;
CurrentCharPtr = 1;
}
return ('?');
}
/* Option requires an argument? */
if (*++OptsPtr == ':')
{
if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0')
{
AcpiGbl_Optarg = &argv[AcpiGbl_Optind++][(int) (CurrentCharPtr+1)];
}
else if (++AcpiGbl_Optind >= argc)
{
ACPI_OPTION_ERROR ("Option requires an argument: -", CurrentChar);
CurrentCharPtr = 1;
return ('?');
}
else
{
AcpiGbl_Optarg = argv[AcpiGbl_Optind++];
}
CurrentCharPtr = 1;
}
/* Option has optional single-char arguments? */
else if (*OptsPtr == '^')
{
if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0')
{
AcpiGbl_Optarg = &argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)];
}
else
{
AcpiGbl_Optarg = "^";
}
AcpiGbl_SubOptChar = AcpiGbl_Optarg[0];
AcpiGbl_Optind++;
CurrentCharPtr = 1;
}
/* Option has a required single-char argument? */
else if (*OptsPtr == '|')
{
if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0')
{
AcpiGbl_Optarg = &argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)];
}
else
{
ACPI_OPTION_ERROR ("Option requires a single-character suboption: -", CurrentChar);
CurrentCharPtr = 1;
return ('?');
}
AcpiGbl_SubOptChar = AcpiGbl_Optarg[0];
AcpiGbl_Optind++;
CurrentCharPtr = 1;
}
/* Option with no arguments */
else
{
if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0')
{
CurrentCharPtr = 1;
AcpiGbl_Optind++;
}
AcpiGbl_Optarg = NULL;
}
return (CurrentChar);
}
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