Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Tapan Shah <tapandshah@hp.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16759 6f19259b-4bc3-4df7-8a09-765794883524
		
			
				
	
	
		
			278 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			278 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/** @file
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  Main file for attrib shell level 2 function.
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  (C) Copyright 2014-2015 Hewlett-Packard Development Company, L.P.<BR>
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  Copyright (c) 2009 - 2010, 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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  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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#include "UefiShellLevel2CommandsLib.h"
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STATIC CONST CHAR16 AllFiles[] = L"*";
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STATIC CONST SHELL_PARAM_ITEM AttribParamList[] = {
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  {L"-a", TypeFlag},
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  {L"+a", TypeFlag},
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  {L"-s", TypeFlag},
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  {L"+s", TypeFlag},
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  {L"-h", TypeFlag},
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  {L"+h", TypeFlag},
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  {L"-r", TypeFlag},
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  {L"+r", TypeFlag},
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  {NULL, TypeMax}
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  };
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/**
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  Function for 'attrib' command.
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  @param[in] ImageHandle  Handle to the Image (NULL if Internal).
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  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
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**/
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SHELL_STATUS
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EFIAPI
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ShellCommandRunAttrib (
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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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  UINT64              FileAttributesToAdd;
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  UINT64              FileAttributesToRemove;
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  EFI_STATUS          Status;
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  LIST_ENTRY          *Package;
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  CHAR16              *ProblemParam;
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  SHELL_STATUS        ShellStatus;
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  UINTN               ParamNumberCount;
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  CONST CHAR16        *FileName;
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  EFI_SHELL_FILE_INFO *ListOfFiles;
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  EFI_SHELL_FILE_INFO *FileNode;
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  EFI_FILE_INFO       *FileInfo;
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  ListOfFiles   = NULL;
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  ShellStatus   = SHELL_SUCCESS;
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  ProblemParam  = NULL;
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  //
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  // initialize the shell lib (we must be in non-auto-init...)
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  //
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  Status = ShellInitialize();
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  ASSERT_EFI_ERROR(Status);
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  //
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  // parse the command line
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  //
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  Status = ShellCommandLineParse (AttribParamList, &Package, &ProblemParam, TRUE);
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  if (EFI_ERROR(Status)) {
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    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
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      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"attrib", ProblemParam);  
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      FreePool(ProblemParam);
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      ShellStatus = SHELL_INVALID_PARAMETER;
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    } else {
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      ASSERT(FALSE);
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    }
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  } else {
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    //
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    // check for "-?"
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    //
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    if (ShellCommandLineGetFlag(Package, L"-?")) {
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      ASSERT(FALSE);
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    } else {
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      FileAttributesToAdd = 0;
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      FileAttributesToRemove = 0;
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      //
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      // apply or remove each flag
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      //
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      if (ShellCommandLineGetFlag(Package, L"+a")) {
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        FileAttributesToAdd |= EFI_FILE_ARCHIVE;
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      }
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      if (ShellCommandLineGetFlag(Package, L"-a")) {
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        FileAttributesToRemove |= EFI_FILE_ARCHIVE;
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      }
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      if (ShellCommandLineGetFlag(Package, L"+s")) {
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        FileAttributesToAdd |= EFI_FILE_SYSTEM;
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      }
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      if (ShellCommandLineGetFlag(Package, L"-s")) {
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        FileAttributesToRemove |= EFI_FILE_SYSTEM;
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      }
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      if (ShellCommandLineGetFlag(Package, L"+h")) {
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        FileAttributesToAdd |= EFI_FILE_HIDDEN;
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      }
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      if (ShellCommandLineGetFlag(Package, L"-h")) {
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        FileAttributesToRemove |= EFI_FILE_HIDDEN;
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      }
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      if (ShellCommandLineGetFlag(Package, L"+r")) {
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        FileAttributesToAdd |= EFI_FILE_READ_ONLY;
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      }
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      if (ShellCommandLineGetFlag(Package, L"-r")) {
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        FileAttributesToRemove |= EFI_FILE_READ_ONLY;
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      }
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      if (FileAttributesToRemove == 0 && FileAttributesToAdd == 0) {
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        //
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        // Do display as we have no attributes to change
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        //
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        for ( ParamNumberCount = 1
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            ;
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            ; ParamNumberCount++
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           ){
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          FileName = ShellCommandLineGetRawValue(Package, ParamNumberCount);
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          // if we dont have anything left, move on...
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          if (FileName == NULL && ParamNumberCount == 1) {
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            FileName = (CHAR16*)AllFiles;
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          } else if (FileName == NULL) {
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            break;
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          }
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          ASSERT(ListOfFiles == NULL);
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          Status = ShellOpenFileMetaArg((CHAR16*)FileName, EFI_FILE_MODE_READ, &ListOfFiles);
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          if (EFI_ERROR(Status)) {
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            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellLevel2HiiHandle, L"attrib", ShellCommandLineGetRawValue(Package, ParamNumberCount));  
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            ShellStatus = SHELL_NOT_FOUND;
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          } else {
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            for (FileNode = (EFI_SHELL_FILE_INFO*)GetFirstNode(&ListOfFiles->Link)
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              ;  !IsNull(&ListOfFiles->Link, &FileNode->Link)
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              ;  FileNode = (EFI_SHELL_FILE_INFO*)GetNextNode(&ListOfFiles->Link, &FileNode->Link)
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             ){
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              ShellPrintHiiEx(
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                -1,
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                -1,
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                NULL,
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                STRING_TOKEN (STR_ATTRIB_OUTPUT_LINE),
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                gShellLevel2HiiHandle,
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                FileNode->Info->Attribute&EFI_FILE_DIRECTORY? L'D':L' ',
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                FileNode->Info->Attribute&EFI_FILE_ARCHIVE?   L'A':L' ',
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                FileNode->Info->Attribute&EFI_FILE_SYSTEM?    L'S':L' ',
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                FileNode->Info->Attribute&EFI_FILE_HIDDEN?    L'H':L' ',
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                FileNode->Info->Attribute&EFI_FILE_READ_ONLY? L'R':L' ',
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                FileNode->FileName
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               );
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              if (ShellGetExecutionBreakFlag()) {
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                  ShellStatus = SHELL_ABORTED;
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                  break;
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              }
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            }
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            Status = ShellCloseFileMetaArg(&ListOfFiles);
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            ListOfFiles = NULL;
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            if (EFI_ERROR(Status)) {
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              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_CLOSE_FAIL), gShellLevel2HiiHandle, L"attrib", ShellCommandLineGetRawValue(Package, ParamNumberCount));  
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              ShellStatus = SHELL_NOT_FOUND;
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            }
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          } // for loop for handling wildcard filenames
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        } // for loop for printing out the info
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      } else if ((FileAttributesToRemove & FileAttributesToAdd) != 0) {
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        //
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        // fail as we have conflcting params.
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        //
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        ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_CON), gShellLevel2HiiHandle, L"attrib");  
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        ShellStatus = SHELL_INVALID_PARAMETER;
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      } else {
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        //
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        // enumerate through all the files/directories and apply the attributes
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        //
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        for ( ParamNumberCount = 1
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            ;
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            ; ParamNumberCount++
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           ){
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          FileName = ShellCommandLineGetRawValue(Package, ParamNumberCount);
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          // if we dont have anything left, move on...
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          if (FileName == NULL) {
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            //
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            // make sure we are not failing on the first one we do... if yes that's an error...
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            //
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            if (ParamNumberCount == 1) {
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              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel2HiiHandle, L"attrib");  
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              ShellStatus = SHELL_INVALID_PARAMETER;
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            }
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            break;
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          }
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          //
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          // OpenFileByName / GetFileInfo / Change attributes / SetFileInfo / CloseFile / free memory
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          // for each file or directory on the line.
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          //
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          //
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          // Open the file(s)
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          //
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          ASSERT(ListOfFiles == NULL);
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          Status = ShellOpenFileMetaArg((CHAR16*)FileName, EFI_FILE_MODE_READ, &ListOfFiles);
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          if (EFI_ERROR(Status)) {
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            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellLevel2HiiHandle, L"attrib", ShellCommandLineGetRawValue(Package, ParamNumberCount));  
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            ShellStatus = SHELL_NOT_FOUND;
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          } else {
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            for (FileNode = (EFI_SHELL_FILE_INFO*)GetFirstNode(&ListOfFiles->Link)
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              ;  !IsNull(&ListOfFiles->Link, &FileNode->Link)
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              ;  FileNode = (EFI_SHELL_FILE_INFO*)GetNextNode(&ListOfFiles->Link, &FileNode->Link)
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             ){
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              //
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              // skip the directory traversing stuff...
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              //
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              if (StrCmp(FileNode->FileName, L".") == 0 || StrCmp(FileNode->FileName, L"..") == 0) {
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                continue;
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              }
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              FileInfo = gEfiShellProtocol->GetFileInfo(FileNode->Handle);
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              //
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              // if we are removing Read-Only we need to do that alone
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              //
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              if ((FileAttributesToRemove & EFI_FILE_READ_ONLY) == EFI_FILE_READ_ONLY) {
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                FileInfo->Attribute &= ~EFI_FILE_READ_ONLY;
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                //
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                // SetFileInfo
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                //
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                Status = ShellSetFileInfo(FileNode->Handle, FileInfo);
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                if (EFI_ERROR(Status)) {
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                  ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_AD), gShellLevel2HiiHandle, L"attrib", ShellCommandLineGetRawValue(Package, ParamNumberCount));  
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                  ShellStatus = SHELL_ACCESS_DENIED;
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                }
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              }
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              //
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              // change the attribute
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              //
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              FileInfo->Attribute &= ~FileAttributesToRemove;
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              FileInfo->Attribute |= FileAttributesToAdd;
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              //
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              // SetFileInfo
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              //
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              Status = ShellSetFileInfo(FileNode->Handle, FileInfo);
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              if (EFI_ERROR(Status)) {;
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                ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_AD), gShellLevel2HiiHandle, L"attrib", ShellCommandLineGetRawValue(Package, ParamNumberCount));  
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                ShellStatus = SHELL_ACCESS_DENIED;
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              }
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              SHELL_FREE_NON_NULL(FileInfo);
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            }
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            Status = ShellCloseFileMetaArg(&ListOfFiles);
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            ListOfFiles = NULL;
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            if (EFI_ERROR(Status)) {
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              ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_CLOSE_FAIL), gShellLevel2HiiHandle, L"attrib", ShellCommandLineGetRawValue(Package, ParamNumberCount));  
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              ShellStatus = SHELL_NOT_FOUND;
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            }
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          } // for loop for handling wildcard filenames
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        }
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      }
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    }
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  }
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  //
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  // free the command line package
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  //
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  ShellCommandLineFreeVarList (Package);
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  //
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  // return the status
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  //
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  return (ShellStatus);
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}
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