C++ ShellInitialize函数代码示例

INTN
EFIAPI
ShellAppMain (
  IN UINTN Argc,
  IN CHAR16 **Argv
  )
{
  EFI_STATUS Status;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize ( );
  if ( !EFI_ERROR ( Status )) {
    //
    //  Run the application
    //
    Status = GpioEg20tMain ( Argc, Argv );
  }

  //
  //  Return the command status
  //
  return (INTN)Status;
}

/**
  Function for 'stall' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunStall (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS          Status;
  LIST_ENTRY          *Package;
  CHAR16              *ProblemParam;
  SHELL_STATUS        ShellStatus;
  UINT64              Intermediate;

  ShellStatus         = SHELL_SUCCESS;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
  ASSERT_EFI_ERROR(Status);

  Status = CommandInit();
  ASSERT_EFI_ERROR(Status);

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel1HiiHandle, ProblemParam);
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      ASSERT(FALSE);
    }
  } else {
    if (ShellCommandLineGetRawValue(Package, 2) != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel1HiiHandle);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else if (ShellCommandLineGetRawValue(Package, 1) == NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel1HiiHandle);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      Status = ShellConvertStringToUint64(ShellCommandLineGetRawValue(Package, 1), &Intermediate, FALSE, FALSE);
      if (EFI_ERROR(Status) || ((UINT64)(UINTN)(Intermediate)) != Intermediate) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM_VAL), gShellLevel1HiiHandle, ShellCommandLineGetRawValue(Package, 1));
        ShellStatus = SHELL_INVALID_PARAMETER;
      } else {
        Status = gBS->Stall((UINTN)Intermediate);
        if (EFI_ERROR(Status)) {
          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_STALL_FAILED), gShellLevel1HiiHandle, Status);
          ShellStatus = SHELL_DEVICE_ERROR;
        }
      }
    }
    ShellCommandLineFreeVarList (Package);
  }
  return (ShellStatus);
}

/**
  This is the shell command "dumpfdt" handler function. This function handles
  the command when it is invoked in the shell.

  @param[in]  This             The instance of the
                               EFI_SHELL_DYNAMIC_COMMAND_PROTOCOL.
  @param[in]  SystemTable      The pointer to the UEFI system table.
  @param[in]  ShellParameters  The parameters associated with the command.
  @param[in]  Shell            The instance of the shell protocol used in the
                               context of processing this command.

  @return  SHELL_SUCCESS            The operation was successful.
  @return  SHELL_ABORTED            Operation aborted due to internal error.
  @return  SHELL_NOT_FOUND          Failed to locate the Device Tree into the EFI Configuration Table
  @return  SHELL_OUT_OF_RESOURCES   A memory allocation failed.

**/
SHELL_STATUS
EFIAPI
ShellDynCmdDumpFdtHandler (
  IN EFI_SHELL_DYNAMIC_COMMAND_PROTOCOL  *This,
  IN EFI_SYSTEM_TABLE                    *SystemTable,
  IN EFI_SHELL_PARAMETERS_PROTOCOL       *ShellParameters,
  IN EFI_SHELL_PROTOCOL                  *Shell
  )
{
  SHELL_STATUS  ShellStatus;
  EFI_STATUS    Status;
  VOID          *FdtBlob;

  ShellStatus  = SHELL_SUCCESS;

  //
  // Install the Shell and Shell Parameters Protocols on the driver
  // image. This is necessary for the initialisation of the Shell
  // Library to succeed in the next step.
  //
  Status = gBS->InstallMultipleProtocolInterfaces (
                  &gImageHandle,
                  &gEfiShellProtocolGuid, Shell,
                  &gEfiShellParametersProtocolGuid, ShellParameters,
                  NULL
                  );
  if (EFI_ERROR (Status)) {
    return SHELL_ABORTED;
  }

  //
  // Initialise the Shell Library as we are going to use it.
  // Assert that the return code is EFI_SUCCESS as it should.
  // To anticipate any change is the codes returned by
  // ShellInitialize(), leave in case of error.
  //
  Status = ShellInitialize ();
  if (EFI_ERROR (Status)) {
    ASSERT_EFI_ERROR (Status);
    return SHELL_ABORTED;
  }

  Status = EfiGetSystemConfigurationTable (&gFdtTableGuid, &FdtBlob);
  if (EFI_ERROR (Status)) {
    Print (L"ERROR: Did not find the Fdt Blob.\n");
    return EfiCodeToShellCode (Status);
  }

  DumpFdt (FdtBlob);

  gBS->UninstallMultipleProtocolInterfaces (
         gImageHandle,
         &gEfiShellProtocolGuid, Shell,
         &gEfiShellParametersProtocolGuid, ShellParameters,
         NULL
         );

  return ShellStatus;
}

/**
  Function for 'reconnect' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunReconnect (
    IN EFI_HANDLE        ImageHandle,
    IN EFI_SYSTEM_TABLE  *SystemTable
)
{
    SHELL_STATUS        ShellStatus;
    LIST_ENTRY          *Package;
    CHAR16              *ProblemParam;
    EFI_STATUS          Status;

    gInReconnect = TRUE;
    ShellStatus = SHELL_SUCCESS;

    //
    // initialize the shell lib (we must be in non-auto-init...)
    //
    Status = ShellInitialize();
    ASSERT_EFI_ERROR(Status);

    Status = CommandInit();
    ASSERT_EFI_ERROR(Status);

    //
    // parse the command line
    //
    Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
    if (EFI_ERROR(Status)) {
        if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDriver1HiiHandle, "reconnect", ProblemParam);
            FreePool(ProblemParam);
            ShellStatus = SHELL_INVALID_PARAMETER;
        } else {
            ASSERT(FALSE);
        }
    } else {
        ShellStatus = ShellCommandRunDisconnect(ImageHandle, SystemTable);
        if (ShellStatus == SHELL_SUCCESS) {
            if (ShellCommandLineGetFlag(Package, L"-r")) {
                ConnectAllConsoles();
            }
            ShellStatus = ShellCommandRunConnect(ImageHandle, SystemTable);
        }
    }

    gInReconnect = FALSE;

    return (ShellStatus);
}

/**
  Function for 'mv' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunMv (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS          Status;
  LIST_ENTRY          *Package;
  CHAR16              *ProblemParam;
  CHAR16              *Cwd;
  UINTN               CwdSize;
  SHELL_STATUS        ShellStatus;
  UINTN               ParamCount;
  UINTN               LoopCounter;
  EFI_SHELL_FILE_INFO *FileList;
  VOID                *Response;

  ProblemParam        = NULL;
  ShellStatus         = SHELL_SUCCESS;
  ParamCount          = 0;
  FileList            = NULL;
  Response            = NULL;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
  ASSERT_EFI_ERROR(Status);

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"mv", ProblemParam);  
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      ASSERT(FALSE);
    }
  } else {
    //
    // check for "-?"
    //
    if (ShellCommandLineGetFlag(Package, L"-?")) {
      ASSERT(FALSE);
    }

    switch (ParamCount = ShellCommandLineGetCount(Package)) {
      case 0:
      case 1:
        //
        // we have insufficient parameters
        //
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel2HiiHandle, L"mv");  
        ShellStatus = SHELL_INVALID_PARAMETER;
        break;
      case 2:
        //
        // must have valid CWD for single parameter...
        //
        if (ShellGetCurrentDir(NULL) == NULL){
          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle, L"mv");  
          ShellStatus = SHELL_INVALID_PARAMETER;
        } else {
          Status = ShellOpenFileMetaArg((CHAR16*)ShellCommandLineGetRawValue(Package, 1), EFI_FILE_MODE_WRITE|EFI_FILE_MODE_READ, &FileList);
          if (FileList == NULL || IsListEmpty(&FileList->Link) || EFI_ERROR(Status)) {
            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_NF), gShellLevel2HiiHandle, L"mv", ShellCommandLineGetRawValue(Package, 1));  
            ShellStatus = SHELL_NOT_FOUND;
          } else  {
            //
            // ValidateAndMoveFiles will report errors to the screen itself
            //
            CwdSize = StrSize(ShellGetCurrentDir(NULL)) + sizeof(CHAR16);
            Cwd = AllocateZeroPool(CwdSize);
            ASSERT (Cwd != NULL);
            StrCpyS(Cwd, CwdSize/sizeof(CHAR16), ShellGetCurrentDir(NULL));
            StrCatS(Cwd, CwdSize/sizeof(CHAR16), L"\\");
            ShellStatus = ValidateAndMoveFiles(FileList, &Response, Cwd);
            FreePool(Cwd);
          }
        }

        break;
      default:
        ///@todo make sure this works with error half way through and continues...
        for (ParamCount--, LoopCounter = 1 ; LoopCounter < ParamCount ; LoopCounter++) {
          if (ShellGetExecutionBreakFlag()) {
            break;
          }
          Status = ShellOpenFileMetaArg((CHAR16*)ShellCommandLineGetRawValue(Package, LoopCounter), EFI_FILE_MODE_WRITE|EFI_FILE_MODE_READ, &FileList);
          if (FileList == NULL || IsListEmpty(&FileList->Link) || EFI_ERROR(Status)) {
//.........这里部分代码省略.........

/**
  Function for 'for' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunFor (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS          Status;
  SHELL_STATUS        ShellStatus;
  SCRIPT_FILE         *CurrentScriptFile;
  CHAR16              *ArgSet;
  CHAR16              *ArgSetWalker;
  UINTN               ArgSize;
  UINTN               LoopVar;
  SHELL_FOR_INFO      *Info;
  CHAR16              *TempString;
  CHAR16              *TempSpot;
  BOOLEAN             FirstPass;
  EFI_SHELL_FILE_INFO *Node;
  EFI_SHELL_FILE_INFO *FileList;
  UINTN               NewSize;

  ArgSet              = NULL;
  ArgSize             = 0;
  ShellStatus         = SHELL_SUCCESS;
  ArgSetWalker        = NULL;
  TempString          = NULL;
  FirstPass           = FALSE;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
  ASSERT_EFI_ERROR(Status);

  Status = CommandInit();
  ASSERT_EFI_ERROR(Status);

  if (!gEfiShellProtocol->BatchIsActive()) {
    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel1HiiHandle, L"For");
    return (SHELL_UNSUPPORTED);
  }

  if (gEfiShellParametersProtocol->Argc < 4) {
    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel1HiiHandle);
    return (SHELL_INVALID_PARAMETER);
  }

  CurrentScriptFile = ShellCommandGetCurrentScriptFile();
  ASSERT(CurrentScriptFile != NULL);

  if (CurrentScriptFile->CurrentCommand->Data == NULL) {
    FirstPass = TRUE;

    //
    // Make sure that an End exists.
    //
    if (!MoveToTag(GetNextNode, L"endfor", L"for", NULL, CurrentScriptFile, TRUE, TRUE, FALSE)) {
      ShellPrintHiiEx(
        -1, 
        -1, 
        NULL, 
        STRING_TOKEN (STR_SYNTAX_NO_MATCHING), 
        gShellLevel1HiiHandle, 
        L"EndFor", 
        L"For", 
        CurrentScriptFile->CurrentCommand!=NULL
          ?CurrentScriptFile->CurrentCommand->Line:0);
      return (SHELL_DEVICE_ERROR);
    }

    //
    // Process the line.
    //
    if (gEfiShellParametersProtocol->Argv[1][0] != L'%' || gEfiShellParametersProtocol->Argv[1][2] != CHAR_NULL
      ||!((gEfiShellParametersProtocol->Argv[1][1] >= L'a' && gEfiShellParametersProtocol->Argv[1][1] <= L'z')
       ||(gEfiShellParametersProtocol->Argv[1][1] >= L'A' && gEfiShellParametersProtocol->Argv[1][1] <= L'Z'))
     ) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_INV_VAR), gShellLevel1HiiHandle, gEfiShellParametersProtocol->Argv[1]);
      return (SHELL_INVALID_PARAMETER);
    }

    if (gUnicodeCollation->StriColl(
        gUnicodeCollation,
        L"in",
        gEfiShellParametersProtocol->Argv[2]) == 0) {
      for (LoopVar = 0x3 ; LoopVar < gEfiShellParametersProtocol->Argc ; LoopVar++) {
        ASSERT((ArgSet == NULL && ArgSize == 0) || (ArgSet != NULL));
        if (StrStr(gEfiShellParametersProtocol->Argv[LoopVar], L"*") != NULL
          ||StrStr(gEfiShellParametersProtocol->Argv[LoopVar], L"?") != NULL
          ||StrStr(gEfiShellParametersProtocol->Argv[LoopVar], L"[") != NULL
          ||StrStr(gEfiShellParametersProtocol->Argv[LoopVar], L"]") != NULL) {
          FileList = NULL;
          Status = ShellOpenFileMetaArg ((CHAR16*)gEfiShellParametersProtocol->Argv[LoopVar], EFI_FILE_MODE_READ, &FileList);
//.........这里部分代码省略.........

/**
  Function for 'timezone' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunTimeZone (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  //
  // non interactive
  //
  EFI_STATUS    Status;
  LIST_ENTRY    *Package;
  CHAR16        *ProblemParam;
  SHELL_STATUS  ShellStatus;
  UINT8         LoopVar;
  EFI_TIME      TheTime;
  BOOLEAN       Found;
  UINTN         TzMinutes;

  ShellStatus  = SHELL_SUCCESS;
  ProblemParam = NULL;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
  ASSERT_EFI_ERROR(Status);

  //
  // parse the command line
  //
  if (PcdGet8(PcdShellSupportLevel) == 2) {
    Status = ShellCommandLineParse (TimeZoneParamList2, &Package, &ProblemParam, TRUE);
  } else {
    ASSERT(PcdGet8(PcdShellSupportLevel) == 3);
    Status = ShellCommandLineParseEx (TimeZoneParamList3, &Package, &ProblemParam, TRUE, TRUE);
  }
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, ProblemParam);
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      ASSERT(FALSE);
    }
  } else {
    //
    // check for "-?"
    //
    if (ShellCommandLineGetCount(Package) > 1) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else if (ShellCommandLineGetFlag(Package, L"-?")) {
      ASSERT(FALSE);
    } else if (ShellCommandLineGetFlag(Package, L"-s")) {
      if ((ShellCommandLineGetFlag(Package, L"-l")) || (ShellCommandLineGetFlag(Package, L"-f"))) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"-l or -f");
        ShellStatus = SHELL_INVALID_PARAMETER;
      } else {
        ASSERT(PcdGet8(PcdShellSupportLevel) == 3);
        if (ShellCommandLineGetValue(Package, L"-s") == NULL) {
          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellLevel2HiiHandle, L"-s");
          ShellStatus = SHELL_INVALID_PARAMETER;
        } else {
          //
          // Set the time zone
          //
          ShellStatus = CheckAndSetTimeZone(ShellCommandLineGetValue(Package, L"-s"));
          if (ShellStatus != SHELL_SUCCESS) {
            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, ShellCommandLineGetValue(Package, L"-s"));
            ShellStatus = SHELL_INVALID_PARAMETER;
          }
        }
      }
    } else if (ShellCommandLineGetFlag(Package, L"-l")) {
      //
      // Print a list of all time zones
      //
      for ( LoopVar = 0
          ; LoopVar < sizeof(TimeZoneList) / sizeof(TimeZoneList[0])
          ; LoopVar++
         ){
        ShellPrintHiiEx (-1, -1, NULL, TimeZoneList[LoopVar].StringId, gShellLevel2HiiHandle);
      }
    } else {
      //
      // Get Current Time Zone Info
      //
      Status = gRT->GetTime(&TheTime, NULL);
      ASSERT_EFI_ERROR(Status);

      if (TheTime.TimeZone != EFI_UNSPECIFIED_TIMEZONE) {
        Found = FALSE;
        for ( LoopVar = 0
//.........这里部分代码省略.........

/**
  Function for 'ls' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunLs (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS    Status;
  LIST_ENTRY    *Package;
  CHAR16        *ProblemParam;
  CONST CHAR16  *Attribs;
  SHELL_STATUS  ShellStatus;
  UINT64        RequiredAttributes;
  CONST CHAR16  *PathName;
  CONST CHAR16  *CurDir;
  UINTN         Count;
  CHAR16        *FullPath;
  UINTN         Size;
  EFI_TIME      TheTime;
  CHAR16        *SearchString;

  Size                = 0;
  FullPath            = NULL;
  ProblemParam        = NULL;
  Attribs             = NULL;
  ShellStatus         = SHELL_SUCCESS;
  RequiredAttributes  = 0;
  PathName            = NULL;
  SearchString        = NULL;
  CurDir              = NULL;
  Count               = 0;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
  ASSERT_EFI_ERROR(Status);

  //
  // Fix local copies of the protocol pointers
  //
  Status = CommandInit();
  ASSERT_EFI_ERROR(Status);

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (LsParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"ls", ProblemParam);
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      ASSERT(FALSE);
    }
  } else {
    //
    // check for "-?"
    //
    if (ShellCommandLineGetFlag(Package, L"-?")) {
      ASSERT(FALSE);
    }

    if (ShellCommandLineGetCount(Package) > 2) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle, L"ls");
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      //
      // check for -a
      //
      if (ShellCommandLineGetFlag(Package, L"-a")) {
        for ( Attribs = ShellCommandLineGetValue(Package, L"-a")
            ; Attribs != NULL && *Attribs != CHAR_NULL && ShellStatus == SHELL_SUCCESS
            ; Attribs++
           ){
          switch (*Attribs) {
            case L'a':
            case L'A':
              RequiredAttributes |= EFI_FILE_ARCHIVE;
              Count++;
              continue;
            case L's':
            case L'S':
              RequiredAttributes |= EFI_FILE_SYSTEM;
              Count++;
              continue;
            case L'h':
            case L'H':
              RequiredAttributes |= EFI_FILE_HIDDEN;
              Count++;
              continue;
            case L'r':
            case L'R':
//.........这里部分代码省略.........

/**
  Function for 'mode' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunMode (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS          Status;
  LIST_ENTRY          *Package;
  CHAR16              *ProblemParam;
  SHELL_STATUS        ShellStatus;
  UINTN               NewCol;
  UINTN               NewRow;
  UINTN               Col;
  UINTN               Row;
  CONST CHAR16        *Temp;
  BOOLEAN             Done;
  INT32               LoopVar;

  ShellStatus         = SHELL_SUCCESS;
  Status              = EFI_SUCCESS;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
  ASSERT_EFI_ERROR(Status);

  Status = CommandInit();
  ASSERT_EFI_ERROR(Status);

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, ProblemParam);
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      ASSERT(FALSE);
    }
  } else {
    if (ShellCommandLineGetCount(Package) > 3) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else if (ShellCommandLineGetCount(Package) == 2) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else if (ShellCommandLineGetCount(Package) == 3) {
      Temp = ShellCommandLineGetRawValue(Package, 1);
      if (!ShellIsHexOrDecimalNumber(Temp, FALSE, FALSE)) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Temp);
        ShellStatus = SHELL_INVALID_PARAMETER;
      }
      NewCol = ShellStrToUintn(Temp);
      Temp = ShellCommandLineGetRawValue(Package, 2);
      if (!ShellIsHexOrDecimalNumber(Temp, FALSE, FALSE)) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Temp);
        ShellStatus = SHELL_INVALID_PARAMETER;
      }
      NewRow = ShellStrToUintn(Temp);

      for (LoopVar = 0, Done = FALSE; LoopVar < gST->ConOut->Mode->MaxMode && ShellStatus == SHELL_SUCCESS ; LoopVar++) {
        Status = gST->ConOut->QueryMode(gST->ConOut, LoopVar, &Col, &Row);
        if (EFI_ERROR(Status)) {
          continue;
        }
        if (Col == NewCol && Row == NewRow) {
          Status = gST->ConOut->SetMode(gST->ConOut, LoopVar);
          if (EFI_ERROR(Status)) {
            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MODE_SET_FAIL), gShellDebug1HiiHandle, Status);
            ShellStatus = SHELL_DEVICE_ERROR;
          } else {
            // worked fine...
            Done = TRUE;
          }
          break;
        }
      }

      if (!Done) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MODE_NO_MATCH), gShellDebug1HiiHandle);
        ShellStatus = SHELL_INVALID_PARAMETER;
      }

    } else if (ShellCommandLineGetCount(Package) == 1) {
      //
      // print out valid
      //
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MODE_LIST_HEAD), gShellDebug1HiiHandle);
      for (LoopVar = 0, Done = FALSE; LoopVar < gST->ConOut->Mode->MaxMode && ShellStatus == SHELL_SUCCESS ; LoopVar++) {
        Status = gST->ConOut->QueryMode(gST->ConOut, LoopVar, &Col, &Row);
//.........这里部分代码省略.........

/**
  Function for 'hexedit' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunHexEdit (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS              Status;
  CHAR16                  *Buffer;
  CHAR16                  *ProblemParam;
  SHELL_STATUS            ShellStatus;
  LIST_ENTRY              *Package;
  CHAR16                  *NewName;
  CONST CHAR16            *Name;
  UINTN                   Offset;
  UINTN                   Size;
  EDIT_FILE_TYPE          WhatToDo;

  Buffer      = NULL;
  ShellStatus = SHELL_SUCCESS;
  NewName         = NULL;
  Buffer      = NULL;
  Name        = NULL;
  Offset      = 0;
  Size        = 0;
  WhatToDo    = FileTypeNone;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
//  ASSERT_EFI_ERROR(Status);

  Status = CommandInit();
//  ASSERT_EFI_ERROR(Status);
  if (EFI_ERROR(Status)) {
  
    return SHELL_UNSUPPORTED;
  }

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"hexedit", ProblemParam);  
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } /* else {
      ASSERT(FALSE);
    } */
  } else {
    //
    // Check for -d
    //
    if (ShellCommandLineGetFlag(Package, L"-d")){
      if (ShellCommandLineGetCount(Package) < 4) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"hexedit");  
        ShellStatus = SHELL_INVALID_PARAMETER;
      } else if (ShellCommandLineGetCount(Package) > 4) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle, L"hexedit");  
        ShellStatus = SHELL_INVALID_PARAMETER;
      } else {
        WhatToDo = FileTypeDiskBuffer;
        Name    = ShellCommandLineGetRawValue(Package, 1);
        Offset  = ShellStrToUintn(ShellCommandLineGetRawValue(Package, 2));
        Size    = ShellStrToUintn(ShellCommandLineGetRawValue(Package, 3));
      }
      if (Offset == (UINTN)-1 || Size == (UINTN)-1) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellDebug1HiiHandle, L"hexedit", L"-d");  
        ShellStatus = SHELL_INVALID_PARAMETER;
      }
    }

    //
    // check for -f
    //
    if (ShellCommandLineGetFlag(Package, L"-f") && (WhatToDo == FileTypeNone)){
      if (ShellCommandLineGetCount(Package) < 2) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"hexedit");  
        ShellStatus = SHELL_INVALID_PARAMETER;
      } else if (ShellCommandLineGetCount(Package) > 2) {
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle, L"hexedit");  
        ShellStatus = SHELL_INVALID_PARAMETER;
      } else {
        Name      = ShellCommandLineGetRawValue(Package, 1);
        if (Name == NULL || !IsValidFileName(Name)) {
          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"hexedit", Name);  
          ShellStatus = SHELL_INVALID_PARAMETER;
        } else {
          WhatToDo  = FileTypeFileBuffer;
        }
      }
//.........这里部分代码省略.........

/**
  Function for 'devices' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunDevices (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS          Status;
  LIST_ENTRY          *Package;
  CHAR16              *ProblemParam;
  SHELL_STATUS        ShellStatus;
  CHAR8               *Language;
  EFI_HANDLE          *HandleList;
  EFI_HANDLE          *HandleListWalker;
  CHAR16              Type;
  BOOLEAN             Cfg;
  BOOLEAN             Diag;
  UINTN               Parents;
  UINTN               Devices;
  UINTN               Children;
  CHAR16              *Name;
  CONST CHAR16        *Lang;
  BOOLEAN             SfoFlag;

  ShellStatus         = SHELL_SUCCESS;
  Language            = NULL;
  SfoFlag             = FALSE;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
//  ASSERT_EFI_ERROR(Status);

  Status = CommandInit();
//  ASSERT_EFI_ERROR(Status);
  if (EFI_ERROR(Status)) {

    return SHELL_UNSUPPORTED;
  }

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDriver1HiiHandle, L"devices", ProblemParam);  
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } /* else {
      ASSERT(FALSE);
    } */
  } else {
    //
    // if more than 0 'value' parameters  we have too many parameters
    //
    if (ShellCommandLineGetRawValue(Package, 1) != NULL){
      //
      // error for too many parameters
      //
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDriver1HiiHandle, L"devices");  
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      //
      // get the language if necessary
      //
      Lang = ShellCommandLineGetValue(Package, L"-l");
      if (Lang != NULL) {
        Language = AllocateZeroPool(StrSize(Lang));
        AsciiSPrint(Language, StrSize(Lang), "%S", Lang);
      } else if (!ShellCommandLineGetFlag(Package, L"-l")){
        ASSERT(Language == NULL);
//        Language = AllocateZeroPool(10);
//        AsciiSPrint(Language, 10, "en-us");
      } else {
        ASSERT(Language == NULL);
        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellDriver1HiiHandle, L"devices",  L"-l");  
        ShellCommandLineFreeVarList (Package);
        return (SHELL_INVALID_PARAMETER);
      }


      //
      // Print Header

      //
      if (ShellCommandLineGetFlag (Package, L"-sfo")) {
        ShellPrintHiiEx (-1, -1, Language, STRING_TOKEN (STR_GEN_SFO_HEADER), gShellDriver1HiiHandle, L"devices");
        SfoFlag = TRUE;
      } else {
        ShellPrintHiiEx (-1, -1, Language, STRING_TOKEN (STR_DEVICES_HEADER_LINES), gShellDriver1HiiHandle);
      }

//.........这里部分代码省略.........

/**
  Function for 'memmap' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunMemMap (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS          Status;
  LIST_ENTRY          *Package;
  CHAR16              *ProblemParam;
  SHELL_STATUS        ShellStatus;
  UINTN               Size;
  EFI_MEMORY_DESCRIPTOR *Buffer;
  UINTN               MapKey;
  UINTN               ItemSize;
  UINT32              Version;
  UINT8               *Walker;
  UINT64              ReservedPages;
  UINT64              LoadCodePages;
  UINT64              LoadDataPages;
  UINT64              BSCodePages;
  UINT64              BSDataPages;
  UINT64              RTDataPages;
  UINT64              RTCodePages;
  UINT64              AvailPages;
  UINT64              TotalPages;
  UINT64              ReservedPagesSize;
  UINT64              LoadCodePagesSize;
  UINT64              LoadDataPagesSize;
  UINT64              BSCodePagesSize;
  UINT64              BSDataPagesSize;
  UINT64              RTDataPagesSize;
  UINT64              RTCodePagesSize;
  UINT64              AvailPagesSize;
  UINT64              TotalPagesSize;
  UINT64              AcpiReclaimPages;
  UINT64              AcpiNvsPages;
  UINT64              MmioSpacePages;
  UINT64              AcpiReclaimPagesSize;
  UINT64              AcpiNvsPagesSize;
  UINT64              MmioSpacePagesSize;
  UINT64              MmioPortPages;
  UINT64              MmioPortPagesSize;
  UINT64              UnusableMemoryPages;
  UINT64              UnusableMemoryPagesSize;
  UINT64              PalCodePages;
  UINT64              PalCodePagesSize;
  BOOLEAN             Sfo;

  AcpiReclaimPages    = 0;
  AcpiNvsPages        = 0;
  MmioSpacePages      = 0;
  TotalPages          = 0;
  ReservedPages       = 0;
  LoadCodePages       = 0;
  LoadDataPages       = 0;
  BSCodePages         = 0;
  BSDataPages         = 0;
  RTDataPages         = 0;
  RTCodePages         = 0;
  AvailPages          = 0;
  MmioPortPages       = 0;
  UnusableMemoryPages = 0;
  PalCodePages        = 0;
  Size                = 0;
  Buffer              = NULL;
  ShellStatus         = SHELL_SUCCESS;
  Status              = EFI_SUCCESS;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
  ASSERT_EFI_ERROR(Status);

  Status = CommandInit();
  ASSERT_EFI_ERROR(Status);

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (SfoParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, ProblemParam);
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      ASSERT(FALSE);
    }
  } else {
    if (ShellCommandLineGetCount(Package) > 1) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
      ShellStatus = SHELL_INVALID_PARAMETER;
//.........这里部分代码省略.........

/**
  Function for 'goto' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunGoto (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS          Status;
  LIST_ENTRY          *Package;
  CHAR16              *ProblemParam;
  SHELL_STATUS        ShellStatus;
  CHAR16              *CompareString;
  UINTN               Size;
  SCRIPT_FILE         *CurrentScriptFile;

  ShellStatus         = SHELL_SUCCESS;
  CompareString       = NULL;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
  ASSERT_EFI_ERROR(Status);

  Status = CommandInit();
  ASSERT_EFI_ERROR(Status);

  if (!gEfiShellProtocol->BatchIsActive()) {
    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_NO_SCRIPT), gShellLevel1HiiHandle, L"Goto");
    return (SHELL_UNSUPPORTED);
  }

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel1HiiHandle, L"goto", ProblemParam);
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      ASSERT(FALSE);
    }
  } else {
    if (ShellCommandLineGetRawValue(Package, 2) != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel1HiiHandle, L"goto");
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else if (ShellCommandLineGetRawValue(Package, 1) == NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel1HiiHandle, L"goto");
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      Size = 0;
      ASSERT((CompareString == NULL && Size == 0) || (CompareString != NULL));
      CompareString = StrnCatGrow(&CompareString, &Size, L":", 0);
      CompareString = StrnCatGrow(&CompareString, &Size, ShellCommandLineGetRawValue(Package, 1), 0);
      //
      // Check forwards and then backwards for a label...
      //
      if (!MoveToTag(GetNextNode, L"endfor", L"for", CompareString, ShellCommandGetCurrentScriptFile(), FALSE, FALSE, TRUE)) {
        CurrentScriptFile = ShellCommandGetCurrentScriptFile();
        ShellPrintHiiEx(
          -1, 
          -1, 
          NULL, 
          STRING_TOKEN (STR_SYNTAX_NO_MATCHING), 
          gShellLevel1HiiHandle, 
          CompareString, 
          L"Goto", 
          CurrentScriptFile!=NULL 
            && CurrentScriptFile->CurrentCommand!=NULL
            ? CurrentScriptFile->CurrentCommand->Line:0);
        ShellStatus = SHELL_NOT_FOUND;
      }
    FreePool(CompareString);
    }
    ShellCommandLineFreeVarList (Package);
  }

  return (ShellStatus);
}

/**
  Function for 'setvar' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunSetVar (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS          Status;
  RETURN_STATUS       RStatus;
  LIST_ENTRY          *Package;
  CHAR16              *ProblemParam;
  SHELL_STATUS        ShellStatus;
  CONST CHAR16        *VariableName;
  EFI_GUID            Guid;
  CONST CHAR16        *StringGuid;
  UINT32              Attributes;
  VOID                *Buffer;
  UINTN               Size;
  UINTN               LoopVar;

  ShellStatus         = SHELL_SUCCESS;
  Status              = EFI_SUCCESS;
  Buffer              = NULL;
  Size                = 0;
  Attributes          = 0;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
//  ASSERT_EFI_ERROR(Status);

  Status = CommandInit();
//  ASSERT_EFI_ERROR(Status);
  if (EFI_ERROR(Status)) {
    return SHELL_UNSUPPORTED;
 
  }

  //
  // parse the command line
  //
  Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"setvar", ProblemParam);  
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } /* else {
      ASSERT(FALSE);
    } */
  } else if (ShellCommandLineCheckDuplicate (Package,&ProblemParam) != EFI_SUCCESS) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_DUPLICATE), gShellDebug1HiiHandle, L"setvar", ProblemParam);  
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
  } else {
    if (ShellCommandLineGetCount(Package) < 2) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"setvar");  
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      VariableName  = ShellCommandLineGetRawValue(Package, 1);
      if (!ShellCommandLineGetFlag(Package, L"-guid")){
        CopyGuid(&Guid, &gEfiGlobalVariableGuid);
      } else {
        StringGuid = ShellCommandLineGetValue(Package, L"-guid");
        RStatus = StrToGuid (StringGuid, &Guid);
        if (RETURN_ERROR (RStatus) || (StringGuid[GUID_STRING_LENGTH] != L'\0')) {
          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", StringGuid);  
          ShellStatus = SHELL_INVALID_PARAMETER;
        }
      }

      if (ShellCommandLineGetCount(Package) == 2) {
        //
        // Display
        //
        Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);
        if (Status == EFI_BUFFER_TOO_SMALL) {
          Buffer = AllocateZeroPool(Size);
          Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);
        }
        if (!EFI_ERROR(Status) && Buffer != NULL) {
          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_SETVAR_PRINT), gShellDebug1HiiHandle, &Guid, VariableName, Size);
          for (LoopVar = 0; LoopVar < Size; LoopVar++) {
            ShellPrintEx(-1, -1, L"%02x ", ((UINT8*)Buffer)[LoopVar]);
          }
          ShellPrintEx(-1, -1, L"\r\n");
        } else {
          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_GET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName);
          ShellStatus = SHELL_ACCESS_DENIED;
        }
      } else {
        //
        // Create, Delete or Modify.
//.........这里部分代码省略.........

/**
  Function for 'time' command.

  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunTime (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS    Status;
  LIST_ENTRY    *Package;
  EFI_TIME      TheTime;
  CHAR16        *ProblemParam;
  SHELL_STATUS  ShellStatus;
  INT16         Tz;
  UINT8         Daylight;
  CONST CHAR16  *TempLocation;
  UINTN         TzMinutes;

  //
  // Initialize variables
  //
  ShellStatus  = SHELL_SUCCESS;
  ProblemParam = NULL;

  //
  // initialize the shell lib (we must be in non-auto-init...)
  //
  Status = ShellInitialize();
  ASSERT_EFI_ERROR(Status);

  //
  // parse the command line
  //
  if (PcdGet8(PcdShellSupportLevel) == 2) {
    Status = ShellCommandLineParseEx (TimeParamList2, &Package, &ProblemParam, TRUE, TRUE);
  } else {
    ASSERT(PcdGet8(PcdShellSupportLevel) == 3);
    Status = ShellCommandLineParseEx (TimeParamList3, &Package, &ProblemParam, TRUE, TRUE);
  }
  if (EFI_ERROR(Status)) {
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"time", ProblemParam);
      FreePool(ProblemParam);
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      ASSERT(FALSE);
    }
  } else {
    //
    // check for "-?"
    //
    Status = gRT->GetTime(&TheTime, NULL);
    if (EFI_ERROR(Status)) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_UEFI_FUNC_WARN), gShellLevel2HiiHandle, L"time", L"gRT->GetTime", Status);
      return (SHELL_DEVICE_ERROR);
    }

    if (ShellCommandLineGetFlag(Package, L"-?")) {
      ASSERT(FALSE);
    } else if (ShellCommandLineGetRawValue(Package, 2) != NULL) {
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle, L"time");
      ShellStatus = SHELL_INVALID_PARAMETER;
    } else {
      //
      // If there are no parameters, then print the current time
      //
      if (ShellCommandLineGetRawValue(Package, 1) == NULL
        && !ShellCommandLineGetFlag(Package, L"-d")
        && !ShellCommandLineGetFlag(Package, L"-tz")) {
        //
        // ShellPrintEx the current time
        //
        if (TheTime.TimeZone == EFI_UNSPECIFIED_TIMEZONE) {
          TzMinutes = 0;
        } else {
          TzMinutes = (ABS(TheTime.TimeZone)) % 60;
        }

        if (TheTime.TimeZone != EFI_UNSPECIFIED_TIMEZONE) {
          ShellPrintHiiEx (
            -1,
            -1,
            NULL,
            STRING_TOKEN (STR_TIME_FORMAT),
            gShellLevel2HiiHandle,
            TheTime.Hour,
            TheTime.Minute,
            TheTime.Second,
            (TheTime.TimeZone > 0?L"-":L"+"),
            ((ABS(TheTime.TimeZone)) / 60),
            TzMinutes
            );
        } else {
          ShellPrintHiiEx (
            -1,
//.........这里部分代码省略.........