tools/cli/lib/options.c - dev - niceSOFT/tdnf

tools/cli/lib/options.c
151 строка3 KB
Shreenidhi Shedi
remove out dated author info from source files
02 авг 2023, 21:36
02 авг 2023, 21:36af6609f
/*
 * Copyright (C) 2015-2022 VMware, Inc. All Rights Reserved.
 *
 * Licensed under the GNU General Public License v2 (the "License");
 * you may not use this file except in compliance with the License. The terms
 * of the License are located in the COPYING file of this distribution.
 */

#include "includes.h"

uint32_t
TDNFCliValidateOptionName(
    const char* pszName,
    struct option* pKnownOptions
    )
{
    uint32_t dwError = 0;
    struct option* pOption = NULL;

    if(IsNullOrEmptyString(pszName) || !pKnownOptions)
    {
        dwError = ERROR_TDNF_INVALID_PARAMETER;
        BAIL_ON_CLI_ERROR(dwError);
    }

    dwError = _TDNFCliGetOptionByName(pszName, pKnownOptions, &pOption);
    BAIL_ON_CLI_ERROR(dwError);

cleanup:
    return dwError;

error:
    goto cleanup;
}

uint32_t
TDNFCliValidateOptionArg(
    const char* pszName,
    const char* pszArg,
    struct option* pKnownOptions
    )
{
    uint32_t dwError = 0;
    struct option* pOption = NULL;

    if(IsNullOrEmptyString(pszName) || !pKnownOptions)
    {
        dwError = ERROR_TDNF_INVALID_PARAMETER;
        BAIL_ON_CLI_ERROR(dwError);
    }

    dwError = _TDNFCliGetOptionByName(pszName, pKnownOptions, &pOption);
    BAIL_ON_CLI_ERROR(dwError);

    if(IsNullOrEmptyString(pszArg) && pOption->has_arg == required_argument)
    {
        dwError = ERROR_TDNF_CLI_OPTION_ARG_REQUIRED;
    }

    if(!IsNullOrEmptyString(pszArg) && pOption->has_arg == no_argument)
    {
        dwError = ERROR_TDNF_CLI_OPTION_ARG_UNEXPECTED;
    }

cleanup:
    return dwError;

error:
    goto cleanup;
}

uint32_t
TDNFCliValidateOptions(
    const char* pszName,
    const char* pszArg,
    struct option* pKnownOptions
    )
{
    uint32_t dwError = 0;

    //pszArg can be NULL
    if(IsNullOrEmptyString(pszName) ||
       !pKnownOptions)
    {
        dwError = ERROR_TDNF_INVALID_PARAMETER;
        BAIL_ON_CLI_ERROR(dwError);
    }

    dwError = TDNFCliValidateOptionName(pszName, pKnownOptions);
    BAIL_ON_CLI_ERROR(dwError);

    dwError = TDNFCliValidateOptionArg(pszName, pszArg, pKnownOptions);
    BAIL_ON_CLI_ERROR(dwError);

cleanup:
    return dwError;

error:
    goto cleanup;
}

uint32_t
_TDNFCliGetOptionByName(
    const char* pszName,
    struct option* pKnownOptions,
    struct option** ppOption
    )
{
    uint32_t dwError = 0;
    struct option* pOption = NULL;
    const char* OPTIONS_MARKER = "--";
    int OPTIONS_MARKER_LEN = strlen(OPTIONS_MARKER);

    if(IsNullOrEmptyString(pszName) || !pKnownOptions || !ppOption)
    {
        dwError = ERROR_TDNF_INVALID_PARAMETER;
        BAIL_ON_CLI_ERROR(dwError);
    }

    if(strncmp(pszName, OPTIONS_MARKER, OPTIONS_MARKER_LEN) == 0)
    {
        pszName += OPTIONS_MARKER_LEN;
    }

    while(pKnownOptions->name)
    {
        if(!strcmp(pszName, pKnownOptions->name))
        {
            pOption = pKnownOptions;
            break;
        }
        ++pKnownOptions;
    }
    if(!pOption)
    {
        dwError = ERROR_TDNF_CLI_OPTION_NAME_INVALID;
        BAIL_ON_CLI_ERROR(dwError);
    }

    *ppOption = pOption;

cleanup:
    return dwError;

error:
    if(ppOption)
    {
        *ppOption = NULL;
    }
    goto cleanup;
}