common/misc/getopt.cpp

	getopt.cpp revision 4d6dcfe00aab559241d9ed05b89f803ab5ddf611
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync/** @file
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync * innotek Portable Runtime - Command Line Parsing
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync */
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync/*
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync * Copyright (C) 2007 innotek GmbH
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync *
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync * available from http://www.virtualbox.org. This file is free software;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync * you can redistribute it and/or modify it under the terms of the GNU
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync * General Public License as published by the Free Software Foundation,
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync * distribution. VirtualBox OSE is distributed in the hope that it will
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync * be useful, but WITHOUT ANY WARRANTY of any kind.
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync */
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync/*******************************************************************************
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync*   Header Files                                                               *
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync*******************************************************************************/
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync#include <iprt/getopt.h>
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync#include <iprt/err.h>
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync#include <iprt/string.h>
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync#include <string.h>
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync/*******************************************************************************
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync*   Code                                                                       *
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync*******************************************************************************/
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsyncint RTGetOpt(int argc,
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync             char *argv[],
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync             const RTOPTIONDEF *paOptions,
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync             int cOptions,
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync             int *piThis,
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync             RTOPTIONUNION *pValueUnion)
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync{
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync    if (    (!piThis)
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync         || (*piThis >= argc)
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync       )
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync        return 0;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync    int iThis = (*piThis)++;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync    const char *pcszArgThis = argv[iThis];
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync    if (*pcszArgThis == '-')
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync    {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync        int i;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync        for (i = 0;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync             i < cOptions;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync             ++i)
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync        {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync            bool fShort = false;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync            if (    (!strcmp(pcszArgThis, paOptions[i].pcszLong))
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                 || (    ((fShort = (pcszArgThis[1] == paOptions[i].cShort)))
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                      && (pcszArgThis[2] == '\0')
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                    )
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync               )
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync            {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                if (paOptions[i].fl & RTGETOPT_REQUIRES_ARGUMENT)
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                    if (iThis >= argc - 1)
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                    {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        pValueUnion->pcsz = paOptions[i].pcszLong;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        return VERR_GETOPT_REQUIRED_ARGUMENT_MISSING;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                    }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                    else
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                    {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        int iNext = (*piThis)++;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        if (paOptions[i].fl & RTGETOPT_ARG_FORMAT_INT32)
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            int32_t i;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            if (RTStrToInt32Full(argv[iNext], 10, &i))
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                                pValueUnion->pcsz = paOptions[i].pcszLong;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                                return VERR_GETOPT_INVALID_ARGUMENT_FORMAT;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            pValueUnion->i = i;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        else if (paOptions[i].fl & RTGETOPT_ARG_FORMAT_UINT32)
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            uint32_t u;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            if (RTStrToUInt32Full(argv[iNext], 10, &u))
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            {
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                                pValueUnion->pcsz = paOptions[i].pcszLong;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                                return VERR_GETOPT_INVALID_ARGUMENT_FORMAT;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            pValueUnion->u = u;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                        else
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                            pValueUnion->pcsz = argv[iNext];
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                    }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync                return paOptions[i].cShort;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync            }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync        }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync    }
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync    return VERR_GETOPT_UNKNOWN_OPTION;
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync}
4d6dcfe00aab559241d9ed05b89f803ab5ddf611vboxsync