signed-off-by: jcarsey reviewed-by: geekboy15a git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12540 6f19259b-4bc3-4df7-8a09-765794883524
		
			
				
	
	
		
			652 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			652 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /** @file
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|   Main file for NULL named library for debug1 profile shell command functions.
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| 
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|   Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
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|   This program and the accompanying materials
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|   are licensed and made available under the terms and conditions of the BSD License
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|   which accompanies this distribution.  The full text of the license may be found at
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|   http://opensource.org/licenses/bsd-license.php
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| 
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|   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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|   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 
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| **/
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| 
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| #include "UefiShellDebug1CommandsLib.h"
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| 
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| STATIC CONST CHAR16 mFileName[] = L"Debug1Commands";
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| EFI_HANDLE gShellDebug1HiiHandle = NULL;
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| 
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| /**
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|   Gets the debug file name.  This will be used if HII is not working.
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| 
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|   @retval NULL    No file is available.
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|   @return         The NULL-terminated filename to get help from.
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| **/
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| CONST CHAR16*
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| EFIAPI
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| ShellCommandGetManFileNameDebug1 (
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|   VOID
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|   )
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| {
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|   return (mFileName);
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| }
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| 
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| /**
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|   Constructor for the Shell Debug1 Commands library.
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| 
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|   @param ImageHandle    the image handle of the process
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|   @param SystemTable    the EFI System Table pointer
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| 
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|   @retval EFI_SUCCESS        the shell command handlers were installed sucessfully
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|   @retval EFI_UNSUPPORTED    the shell level required was not found.
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| **/
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| EFI_STATUS
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| EFIAPI
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| UefiShellDebug1CommandsLibConstructor (
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|   IN EFI_HANDLE        ImageHandle,
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|   IN EFI_SYSTEM_TABLE  *SystemTable
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|   )
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| {
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|   //
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|   // check our bit of the profiles mask
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|   //
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|   if ((PcdGet8(PcdShellProfileMask) & BIT1) == 0) {
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|     return (EFI_SUCCESS);
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|   }
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| 
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|   //
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|   // install the HII stuff.
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|   //
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|   gShellDebug1HiiHandle = HiiAddPackages (&gShellDebug1HiiGuid, gImageHandle, UefiShellDebug1CommandsLibStrings, NULL);
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|   if (gShellDebug1HiiHandle == NULL) {
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|     return (EFI_DEVICE_ERROR);
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|   }
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| 
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|   //
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|   // install our shell command handlers that are always installed
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|   //
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|   ShellCommandRegisterCommandName(L"setsize",       ShellCommandRunSetSize            , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_SETSIZE)      );
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|   ShellCommandRegisterCommandName(L"comp",          ShellCommandRunComp               , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_COMP)         );
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|   ShellCommandRegisterCommandName(L"mode",          ShellCommandRunMode               , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_MODE)         );
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|   ShellCommandRegisterCommandName(L"memmap",        ShellCommandRunMemMap             , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_MEMMAP)       );
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|   ShellCommandRegisterCommandName(L"eficompress",   ShellCommandRunEfiCompress        , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_EFICOMPRESS)  );
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|   ShellCommandRegisterCommandName(L"efidecompress", ShellCommandRunEfiDecompress      , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_EFIDCOMPRESS) );
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|   ShellCommandRegisterCommandName(L"dmem",          ShellCommandRunDmem               , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_DMEM)         );
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|   ShellCommandRegisterCommandName(L"loadpcirom",    ShellCommandRunLoadPciRom         , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_LOAD_PCI_ROM) );
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|   ShellCommandRegisterCommandName(L"mm",            ShellCommandRunMm                 , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_MM)           );
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|   ShellCommandRegisterCommandName(L"setvar",        ShellCommandRunSetVar             , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_SETVAR)       );
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|   ShellCommandRegisterCommandName(L"sermode",       ShellCommandRunSerMode            , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_SERMODE)      );
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|   ShellCommandRegisterCommandName(L"pci",           ShellCommandRunPci                , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_PCI)          );
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|   ShellCommandRegisterCommandName(L"smbiosview",    ShellCommandRunSmbiosView         , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_SMBIOSVIEW)   );
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|   ShellCommandRegisterCommandName(L"dmpstore",      ShellCommandRunDmpStore           , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_DMPSTORE)     );
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|   ShellCommandRegisterCommandName(L"dblk",          ShellCommandRunDblk               , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_DBLK)         );
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|   ShellCommandRegisterCommandName(L"edit",          ShellCommandRunEdit               , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_EDIT)         );
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|   ShellCommandRegisterCommandName(L"hexedit",       ShellCommandRunHexEdit            , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_HEXEDIT)      );
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| 
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|   //
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|   // check install profile bit of the profiles mask is set
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|   //
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|   if ((PcdGet8(PcdShellProfileMask) & BIT2) == 0) {
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|     ShellCommandRegisterCommandName(L"bcfg",        ShellCommandRunBcfg               , ShellCommandGetManFileNameDebug1, 0, L"Debug1", TRUE, gShellDebug1HiiHandle, STRING_TOKEN(STR_GET_HELP_BCFG)         );
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|   }
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| 
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| 
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| 
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| 
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|   ShellCommandRegisterAlias(L"dmem", L"mem");
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| 
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|   return (EFI_SUCCESS);
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| }
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| 
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| /**
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|   Destructor for the library.  free any resources.
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| 
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|   @param ImageHandle            The image handle of the process.
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|   @param SystemTable            The EFI System Table pointer.
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| **/
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| EFI_STATUS
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| EFIAPI
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| UefiShellDebug1CommandsLibDestructor (
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|   IN EFI_HANDLE        ImageHandle,
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|   IN EFI_SYSTEM_TABLE  *SystemTable
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|   )
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| {
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|   if (gShellDebug1HiiHandle != NULL) {
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|     HiiRemovePackages(gShellDebug1HiiHandle);
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|   }
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|   return (EFI_SUCCESS);
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| }
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| 
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| STATIC CONST CHAR8 Hex[] = {
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|   '0',
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|   '1',
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|   '2',
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|   '3',
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|   '4',
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|   '5',
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|   '6',
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|   '7',
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|   '8',
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|   '9',
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|   'A',
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|   'B',
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|   'C',
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|   'D',
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|   'E',
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|   'F'
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| };
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| 
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| /**
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|   Dump some hexadecimal data to the screen.
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| 
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|   @param[in] Indent     How many spaces to indent the output.
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|   @param[in] Offset     The offset of the printing.
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|   @param[in] DataSize   The size in bytes of UserData.
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|   @param[in] UserData   The data to print out.
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| **/
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| VOID
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| DumpHex (
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|   IN UINTN        Indent,
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|   IN UINTN        Offset,
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|   IN UINTN        DataSize,
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|   IN VOID         *UserData
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|   )
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| {
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|   UINT8 *Data;
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| 
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|   CHAR8 Val[50];
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| 
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|   CHAR8 Str[20];
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| 
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|   UINT8 TempByte;
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|   UINTN Size;
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|   UINTN Index;
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| 
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|   Data = UserData;
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|   while (DataSize != 0) {
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|     Size = 16;
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|     if (Size > DataSize) {
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|       Size = DataSize;
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|     }
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| 
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|     for (Index = 0; Index < Size; Index += 1) {
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|       TempByte            = Data[Index];
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|       Val[Index * 3 + 0]  = Hex[TempByte >> 4];
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|       Val[Index * 3 + 1]  = Hex[TempByte & 0xF];
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|       Val[Index * 3 + 2]  = (CHAR8) ((Index == 7) ? '-' : ' ');
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|       Str[Index]          = (CHAR8) ((TempByte < ' ' || TempByte > 'z') ? '.' : TempByte);
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|     }
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| 
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|     Val[Index * 3]  = 0;
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|     Str[Index]      = 0;
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|     ShellPrintEx(-1, -1, L"%*a%02X: %-.48a *%a*\r\n", Indent, "", Offset, Val, Str);
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| 
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|     Data += Size;
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|     Offset += Size;
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|     DataSize -= Size;
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|   }
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| }
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| 
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| /**
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|   Convert a Unicode character to upper case only if
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|   it maps to a valid small-case ASCII character.
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| 
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|   This internal function only deal with Unicode character
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|   which maps to a valid small-case ASCII character, i.e.
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|   L'a' to L'z'. For other Unicode character, the input character
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|   is returned directly.
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| 
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|   @param  Char  The character to convert.
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| 
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|   @retval LowerCharacter   If the Char is with range L'a' to L'z'.
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|   @retval Unchanged        Otherwise.
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| 
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| 
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|   //Stolen from MdePkg Baselib
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| **/
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| CHAR16
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| EFIAPI
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| CharToUpper (
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|   IN      CHAR16                    Char
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|   )
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| {
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|   if (Char >= L'a' && Char <= L'z') {
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|     return (CHAR16) (Char - (L'a' - L'A'));
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|   }
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| 
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|   return Char;
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| }
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| 
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| /**
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|   Function returns a system configuration table that is stored in the
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|   EFI System Table based on the provided GUID.
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| 
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|   @param[in]  TableGuid     A pointer to the table's GUID type.
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|   @param[in, out] Table     On exit, a pointer to a system configuration table.
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| 
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|   @retval EFI_SUCCESS      A configuration table matching TableGuid was found.
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|   @retval EFI_NOT_FOUND    A configuration table matching TableGuid was not found.
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| **/
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| EFI_STATUS
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| EFIAPI
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| GetSystemConfigurationTable (
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|   IN EFI_GUID *TableGuid,
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|   IN OUT VOID **Table
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|   )
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| {
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|   UINTN Index;
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|   ASSERT (Table != NULL);
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| 
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|   for (Index = 0; Index < gST->NumberOfTableEntries; Index++) {
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|     if (CompareGuid (TableGuid, &(gST->ConfigurationTable[Index].VendorGuid))) {
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|       *Table = gST->ConfigurationTable[Index].VendorTable;
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|       return EFI_SUCCESS;
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|     }
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|   }
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| 
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|   return EFI_NOT_FOUND;
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| }
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| 
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| /**
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|   Convert a Unicode character to numerical value.
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| 
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|   This internal function only deal with Unicode character
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|   which maps to a valid hexadecimal ASII character, i.e.
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|   L'0' to L'9', L'a' to L'f' or L'A' to L'F'. For other
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|   Unicode character, the value returned does not make sense.
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| 
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|   @param  Char  The character to convert.
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| 
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|   @return The numerical value converted.
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| 
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| **/
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| UINTN
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| EFIAPI
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| HexCharToUintn (
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|   IN      CHAR16                    Char
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|   )
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| {
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|   if (Char >= L'0' && Char <= L'9') {
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|     return Char - L'0';
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|   }
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| 
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|   return (UINTN) (10 + CharToUpper (Char) - L'A');
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| }
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| 
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| /**
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|   Convert a string representation of a guid to a Guid value.
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| 
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|   @param[in] StringGuid    The pointer to the string of a guid.
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|   @param[in, out] Guid     The pointer to the GUID structure to populate.
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| 
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|   @retval EFI_INVALID_PARAMETER   A parameter was invalid.
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|   @retval EFI_SUCCESS             The conversion was successful.
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| **/
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| EFI_STATUS
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| EFIAPI
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| ConvertStringToGuid (
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|   IN CONST CHAR16 *StringGuid,
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|   IN OUT EFI_GUID *Guid
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|   )
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| {
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|   CHAR16  *TempCopy;
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|   CHAR16  *TempSpot;
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|   CHAR16  *Walker;
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|   UINT64  TempVal;
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|   EFI_STATUS Status;
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| 
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|   if (StringGuid == NULL) {
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|     return (EFI_INVALID_PARAMETER);
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|   } else if (StrLen(StringGuid) != 36) {
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|     return (EFI_INVALID_PARAMETER);
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|   } 
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|   TempCopy = NULL;
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|   TempCopy = StrnCatGrow(&TempCopy, NULL, StringGuid, 0);
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|   if (TempCopy == NULL) {
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|     return (EFI_OUT_OF_RESOURCES);
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|   }
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|   Walker   = TempCopy;
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|   TempSpot = StrStr(Walker, L"-");
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|   if (TempSpot != NULL) {
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|     *TempSpot = CHAR_NULL;
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|   }
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|   Status = ShellConvertStringToUint64(Walker, &TempVal, TRUE, FALSE);
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|   if (EFI_ERROR(Status)) {
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|     FreePool(TempCopy);
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|     return (Status);
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|   }
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|   Guid->Data1 = (UINT32)TempVal;
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|   Walker += 9;
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|   TempSpot = StrStr(Walker, L"-");
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|   if (TempSpot != NULL) {
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|     *TempSpot = CHAR_NULL;
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|   }
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|   Status = ShellConvertStringToUint64(Walker, &TempVal, TRUE, FALSE);
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|   if (EFI_ERROR(Status)) {
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|     FreePool(TempCopy);
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|     return (Status);
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|   }
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|   Guid->Data2 = (UINT16)TempVal;
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|   Walker += 5;
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|   TempSpot = StrStr(Walker, L"-");
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|   if (TempSpot != NULL) {
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|     *TempSpot = CHAR_NULL;
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|   }
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|   Status = ShellConvertStringToUint64(Walker, &TempVal, TRUE, FALSE);
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|   if (EFI_ERROR(Status)) {
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|     FreePool(TempCopy);
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|     return (Status);
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|   }
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|   Guid->Data3 = (UINT16)TempVal;
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|   Walker += 5;
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|   Guid->Data4[0] = (UINT8)(HexCharToUintn(Walker[0]) * 16);
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|   Guid->Data4[0] = (UINT8)(Guid->Data4[0]+ (UINT8)HexCharToUintn(Walker[1]));
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|   Walker += 2;
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|   Guid->Data4[1] = (UINT8)(HexCharToUintn(Walker[0]) * 16);
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|   Guid->Data4[1] = (UINT8)(Guid->Data4[1] + (UINT8)HexCharToUintn(Walker[1]));
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|   Walker += 3;
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|   Guid->Data4[2] = (UINT8)(HexCharToUintn(Walker[0]) * 16);
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|   Guid->Data4[2] = (UINT8)(Guid->Data4[2] + (UINT8)HexCharToUintn(Walker[1]));
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|   Walker += 2;
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|   Guid->Data4[3] = (UINT8)(HexCharToUintn(Walker[0]) * 16);
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|   Guid->Data4[3] = (UINT8)(Guid->Data4[3] + (UINT8)HexCharToUintn(Walker[1]));
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|   Walker += 2;
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|   Guid->Data4[4] = (UINT8)(HexCharToUintn(Walker[0]) * 16);
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|   Guid->Data4[4] = (UINT8)(Guid->Data4[4] + (UINT8)HexCharToUintn(Walker[1]));
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|   Walker += 2;
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|   Guid->Data4[5] = (UINT8)(HexCharToUintn(Walker[0]) * 16);
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|   Guid->Data4[5] = (UINT8)(Guid->Data4[5] + (UINT8)HexCharToUintn(Walker[1]));
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|   Walker += 2;
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|   Guid->Data4[6] = (UINT8)(HexCharToUintn(Walker[0]) * 16);
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|   Guid->Data4[6] = (UINT8)(Guid->Data4[6] + (UINT8)HexCharToUintn(Walker[1]));
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|   Walker += 2;
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|   Guid->Data4[7] = (UINT8)(HexCharToUintn(Walker[0]) * 16);
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|   Guid->Data4[7] = (UINT8)(Guid->Data4[7] + (UINT8)HexCharToUintn(Walker[1]));
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|   FreePool(TempCopy);
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|   return (EFI_SUCCESS);
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| }
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| 
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| /**
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|   Clear the line at the specified Row.
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|   
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|   @param[in] Row                The row number to be cleared ( start from 1 )
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|   @param[in] LastCol            The last printable column.
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|   @param[in] LastRow            The last printable row.
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| **/
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| VOID
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| EFIAPI
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| EditorClearLine (
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|   IN UINTN Row,
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|   IN UINTN LastCol,
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|   IN UINTN LastRow
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|   )
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| {
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|   CHAR16 Line[200];
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| 
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|   if (Row == 0) {
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|     Row = 1;
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|   }
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| 
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|   //
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|   // prepare a blank line
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|   //
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|   SetMem16(Line, LastCol*sizeof(CHAR16), L' ');
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| 
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|   if (Row == LastRow) {
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|     //
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|     // if CHAR_NULL is still at position 80, it will cause first line error
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|     //
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|     Line[LastCol - 1] = CHAR_NULL;
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|   } else {
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|     Line[LastCol] = CHAR_NULL;
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|   }
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| 
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|   //
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|   // print out the blank line
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|   //
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|   ShellPrintEx (0, ((INT32)Row) - 1, Line);
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| }
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| 
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| /**
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|   Determine if the character is valid for a filename.
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| 
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|   @param[in] Ch     The character to test.
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| 
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|   @retval TRUE      The character is valid.
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|   @retval FALSE     The character is not valid.
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| **/
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| BOOLEAN
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| EFIAPI
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| IsValidFileNameChar (
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|   IN CONST CHAR16 Ch
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|   )
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| {
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|   //
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|   // See if there are any illegal characters within the name
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|   //
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|   if (Ch < 0x20 || Ch == L'\"' || Ch == L'*' || Ch == L'/' || Ch == L'<' || Ch == L'>' || Ch == L'?' || Ch == L'|' || Ch == L' ') {
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|     return FALSE;
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|   }
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| 
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|   return TRUE;
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| }
 | |
| 
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| /**
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|   Check if file name has illegal characters.
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|   
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|   @param Name       The filename to check.
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| 
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|   @retval TRUE      The filename is ok.
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|   @retval FALSE     The filename is not ok.
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| **/
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| BOOLEAN
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| EFIAPI
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| IsValidFileName (
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|   IN CONST CHAR16 *Name
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|   )
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| {
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| 
 | |
|   UINTN Index;
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|   UINTN Len;
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| 
 | |
|   //
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|   // check the length of Name
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|   //
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|   for (Len = 0, Index = StrLen (Name) - 1; Index + 1 != 0; Index--, Len++) {
 | |
|     if (Name[Index] == '\\' || Name[Index] == ':') {
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|       break;
 | |
|     }
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|   }
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| 
 | |
|   if (Len == 0 || Len > 255) {
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|     return FALSE;
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|   }
 | |
|   //
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|   // check whether any char in Name not appears in valid file name char
 | |
|   //
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|   for (Index = 0; Index < StrLen (Name); Index++) {
 | |
|     if (!IsValidFileNameChar (Name[Index])) {
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|       return FALSE;
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|     }
 | |
|   }
 | |
| 
 | |
|   return TRUE;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Find a filename that is valid (not taken) with the given extension.
 | |
| 
 | |
|   @param[in] Extension      The file extension.
 | |
| 
 | |
|   @retval NULL  Something went wrong.
 | |
|   @return the valid filename.
 | |
| **/
 | |
| CHAR16 *
 | |
| EFIAPI
 | |
| EditGetDefaultFileName (
 | |
|   IN CONST CHAR16 *Extension
 | |
|   )
 | |
| {
 | |
|   EFI_STATUS         Status;
 | |
|   UINTN              Suffix;
 | |
|   BOOLEAN            FoundNewFile;
 | |
|   CHAR16             *FileNameTmp;
 | |
| 
 | |
|   Suffix       = 0;
 | |
|   FoundNewFile = FALSE;
 | |
| 
 | |
|   do {
 | |
|     FileNameTmp = CatSPrint (NULL, L"NewFile%d.%s", Suffix, Extension);
 | |
| 
 | |
|     //
 | |
|     // after that filename changed to path
 | |
|     //
 | |
|     Status = ShellFileExists (FileNameTmp);
 | |
| 
 | |
|     if (Status == EFI_NOT_FOUND) {
 | |
|       return FileNameTmp;
 | |
|     }
 | |
| 
 | |
|     FreePool (FileNameTmp);
 | |
|     FileNameTmp = NULL;
 | |
|     Suffix++;
 | |
|   } while (Suffix != 0);
 | |
| 
 | |
|   FreePool (FileNameTmp);
 | |
|   return NULL;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Read a file into an allocated buffer.  The buffer is the responsibility 
 | |
|   of the caller to free.
 | |
| 
 | |
|   @param[in]  FileName          The filename of the file to open.
 | |
|   @param[out] Buffer            Upon successful return, the pointer to the 
 | |
|                                 address of the allocated buffer.                                  
 | |
|   @param[out] BufferSize        If not NULL, then the pointer to the size
 | |
|                                 of the allocated buffer.
 | |
|   @param[out] ReadOnly          Upon successful return TRUE if the file is
 | |
|                                 read only.  FALSE otherwise.
 | |
| 
 | |
|   @retval EFI_NOT_FOUND         The filename did not represent a file in the 
 | |
|                                 file system.
 | |
|   @retval EFI_SUCCESS           The file was read into the buffer.
 | |
|   @retval EFI_OUT_OF_RESOURCES  A memory allocation failed.
 | |
|   @retval EFI_LOAD_ERROR        The file read operation failed.
 | |
|   @retval EFI_INVALID_PARAMETER A parameter was invalid.
 | |
|   @retval EFI_INVALID_PARAMETER FileName was NULL.
 | |
|   @retval EFI_INVALID_PARAMETER FileName was a directory.
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| ReadFileIntoBuffer (
 | |
|   IN CONST CHAR16 *FileName,
 | |
|   OUT VOID        **Buffer,
 | |
|   OUT UINTN       *BufferSize OPTIONAL,
 | |
|   OUT BOOLEAN     *ReadOnly
 | |
|   )
 | |
| {
 | |
|   VOID              *InternalBuffer;
 | |
|   UINTN             FileSize;
 | |
|   SHELL_FILE_HANDLE FileHandle;
 | |
|   BOOLEAN           CreateFile;
 | |
|   EFI_STATUS        Status;
 | |
|   EFI_FILE_INFO     *Info;
 | |
| 
 | |
|   InternalBuffer  = NULL;
 | |
|   FileSize        = 0;
 | |
|   FileHandle      = NULL;
 | |
|   CreateFile      = FALSE;
 | |
|   Status          = EFI_SUCCESS;
 | |
|   Info            = NULL;
 | |
| 
 | |
|   if (FileName == NULL || Buffer == NULL || ReadOnly == NULL) {
 | |
|     return (EFI_INVALID_PARAMETER);
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // try to open the file
 | |
|   //
 | |
|   Status = ShellOpenFileByName (FileName, &FileHandle, EFI_FILE_MODE_READ, 0);
 | |
| 
 | |
|   if (!EFI_ERROR(Status)) {
 | |
|     ASSERT(CreateFile == FALSE);
 | |
|     if (FileHandle == NULL) {
 | |
|       return EFI_LOAD_ERROR;
 | |
|     }
 | |
| 
 | |
|     Info = ShellGetFileInfo(FileHandle);
 | |
|     
 | |
|     if (Info->Attribute & EFI_FILE_DIRECTORY) {
 | |
|       FreePool (Info);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
| 
 | |
|     if (Info->Attribute & EFI_FILE_READ_ONLY) {
 | |
|       *ReadOnly = TRUE;
 | |
|     } else {
 | |
|       *ReadOnly = FALSE;
 | |
|     }
 | |
|     //
 | |
|     // get file size
 | |
|     //
 | |
|     FileSize = (UINTN) Info->FileSize;
 | |
| 
 | |
|     FreePool (Info);
 | |
|   } else if (Status == EFI_NOT_FOUND) {
 | |
|     //
 | |
|     // file not exists.  add create and try again
 | |
|     //
 | |
|     Status = ShellOpenFileByName (FileName, &FileHandle, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE|EFI_FILE_MODE_CREATE, 0);
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       return Status;
 | |
|     } else {
 | |
|       //
 | |
|       // it worked.  now delete it and move on with the name (now validated)
 | |
|       //
 | |
|       Status = ShellDeleteFile (&FileHandle);
 | |
|       if (Status == EFI_WARN_DELETE_FAILURE) {
 | |
|         Status = EFI_ACCESS_DENIED;
 | |
|       }
 | |
|       if (EFI_ERROR (Status)) {
 | |
|         return Status;
 | |
|       }
 | |
|     }
 | |
|     //
 | |
|     // file doesn't exist, so set CreateFile to TRUE and can't be read-only
 | |
|     //
 | |
|     CreateFile = TRUE;
 | |
|     *ReadOnly  = FALSE;
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // the file exists
 | |
|   //
 | |
|   if (!CreateFile) {
 | |
|     //
 | |
|     // allocate buffer to read file
 | |
|     //
 | |
|     InternalBuffer = AllocateZeroPool (FileSize);
 | |
|     if (InternalBuffer == NULL) {
 | |
|       return EFI_OUT_OF_RESOURCES;
 | |
|     }
 | |
|     //
 | |
|     // read file into InternalBuffer
 | |
|     //
 | |
|     Status = ShellReadFile (FileHandle, &FileSize, InternalBuffer);
 | |
|     ShellCloseFile(&FileHandle);
 | |
|     FileHandle = NULL;
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       SHELL_FREE_NON_NULL (InternalBuffer);
 | |
|       return EFI_LOAD_ERROR;
 | |
|     }
 | |
|   }
 | |
|   *Buffer = InternalBuffer;
 | |
|   if (BufferSize != NULL) {
 | |
|     *BufferSize = FileSize;
 | |
|   }
 | |
|   return (EFI_SUCCESS);
 | |
| 
 | |
| }
 |