ShellPkg: Fix spelling mistake for occurred

[mirror_edk2.git] / ShellPkg / Library / UefiShellLevel2CommandsLib / Rm.c

/** @file\r
  Main file for attrib shell level 2 function.\r
\r
  (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r
  Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "UefiShellLevel2CommandsLib.h"\r
\r
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {\r
  {L"-q", TypeFlag},\r
  {NULL, TypeMax}\r
  };\r
\r
/**\r
  Determine if a directory has no files in it.\r
\r
  @param[in] FileHandle   The EFI_HANDLE to the directory.\r
\r
  @retval TRUE  The directory has no files (or directories).\r
  @retval FALSE The directory has at least 1 file or directory in it.\r
**/\r
BOOLEAN\r
IsDirectoryEmpty (\r
  IN SHELL_FILE_HANDLE   FileHandle\r
  )\r
{\r
  EFI_STATUS      Status;\r
  EFI_FILE_INFO   *FileInfo;\r
  BOOLEAN         NoFile;\r
  BOOLEAN         RetVal;\r
\r
  RetVal = TRUE;\r
  NoFile = FALSE;\r
  FileInfo = NULL;\r
\r
  for (Status = FileHandleFindFirstFile(FileHandle, &FileInfo)\r
    ;  !NoFile && !EFI_ERROR (Status)\r
    ;  FileHandleFindNextFile(FileHandle, FileInfo, &NoFile)\r
   ){\r
    if (StrStr(FileInfo->FileName, L".") != FileInfo->FileName\r
      &&StrStr(FileInfo->FileName, L"..") != FileInfo->FileName) {\r
      RetVal = FALSE;\r
    }\r
  }\r
  return (RetVal);\r
}\r
\r
/**\r
  Delete a node and all nodes under it (including sub directories).\r
\r
  @param[in] Node   The node to start deleting with.\r
  @param[in] Quiet  TRUE to print no messages.\r
\r
  @retval SHELL_SUCCESS       The operation was successful.\r
  @retval SHELL_ACCESS_DENIED A file was read only.\r
  @retval SHELL_ABORTED       The abort message was received.\r
  @retval SHELL_DEVICE_ERROR  A device error occurred reading this Node.\r
**/\r
SHELL_STATUS\r
CascadeDelete(\r
  IN EFI_SHELL_FILE_INFO  *Node,\r
  IN CONST BOOLEAN        Quiet\r
  )\r
{\r
  SHELL_STATUS          ShellStatus;\r
  EFI_SHELL_FILE_INFO   *List;\r
  EFI_SHELL_FILE_INFO   *Node2;\r
  EFI_STATUS            Status;\r
  SHELL_PROMPT_RESPONSE *Resp;\r
  CHAR16                *TempName;\r
  UINTN                 NewSize;\r
\r
  Resp                  = NULL;\r
  ShellStatus           = SHELL_SUCCESS;\r
  List                  = NULL;\r
  Status                = EFI_SUCCESS;\r
\r
  if ((Node->Info->Attribute & EFI_FILE_READ_ONLY) == EFI_FILE_READ_ONLY) {\r
    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DETELE_RO), gShellLevel2HiiHandle, L"rm", Node->FullName);\r
    return (SHELL_ACCESS_DENIED);\r
  }\r
\r
  if ((Node->Info->Attribute & EFI_FILE_DIRECTORY) == EFI_FILE_DIRECTORY) {\r
    if (!IsDirectoryEmpty(Node->Handle)) {\r
      if (!Quiet) {\r
        Status = ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_RM_LOG_DELETE_CONF), gShellLevel2HiiHandle, Node->FullName);\r
        Status = ShellPromptForResponse(ShellPromptResponseTypeYesNo, NULL, (VOID**)&Resp);\r
        ASSERT(Resp != NULL);\r
        if (EFI_ERROR(Status) || *Resp != ShellPromptResponseYes) {\r
          SHELL_FREE_NON_NULL(Resp);\r
          return (SHELL_ABORTED);\r
        }\r
        SHELL_FREE_NON_NULL(Resp);\r
      }\r
      //\r
      // empty out the directory\r
      //\r
      Status = gEfiShellProtocol->FindFilesInDir(Node->Handle, &List);\r
      if (EFI_ERROR(Status)) {\r
        if (List!=NULL) {\r
          gEfiShellProtocol->FreeFileList(&List);\r
        }\r
        return (SHELL_DEVICE_ERROR);\r
      }\r
      for (Node2 = (EFI_SHELL_FILE_INFO   *)GetFirstNode(&List->Link)\r
        ;  !IsNull(&List->Link, &Node2->Link)\r
        ;  Node2 = (EFI_SHELL_FILE_INFO   *)GetNextNode(&List->Link, &Node2->Link)\r
       ){\r
        //\r
        // skip the directory traversing stuff...\r
        //\r
        if (StrCmp(Node2->FileName, L".") == 0 || StrCmp(Node2->FileName, L"..") == 0) {\r
          continue;\r
        }\r
        Node2->Status = gEfiShellProtocol->OpenFileByName (Node2->FullName, &Node2->Handle, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE);\r
        if (EFI_ERROR(Node2->Status) && StrStr(Node2->FileName, L":") == NULL) {\r
          //\r
          // Update the node filename to have full path with file system identifier\r
          //\r
          NewSize = StrSize(Node->FullName) + StrSize(Node2->FullName);\r
          TempName = AllocateZeroPool(NewSize);\r
          if (TempName == NULL) {\r
            ShellStatus = SHELL_OUT_OF_RESOURCES;\r
          } else {\r
            StrCpyS(TempName, NewSize/sizeof(CHAR16), Node->FullName);\r
            TempName[StrStr(TempName, L":")+1-TempName] = CHAR_NULL;\r
            StrCatS(TempName, NewSize/sizeof(CHAR16), Node2->FullName);\r
            FreePool((VOID*)Node2->FullName);\r
            Node2->FullName = TempName;\r
\r
            //\r
            // Now try again to open the file\r
            //\r
            Node2->Status = gEfiShellProtocol->OpenFileByName (Node2->FullName, &Node2->Handle, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE);\r
          }\r
        }\r
        if (!EFI_ERROR(Node2->Status)) {\r
          ShellStatus = CascadeDelete(Node2, Quiet);\r
        } else if (ShellStatus == SHELL_SUCCESS) {\r
          ShellStatus = (SHELL_STATUS)(Node2->Status&(~0x80000000));\r
        }\r
        if (ShellStatus != SHELL_SUCCESS) {\r
          if (List!=NULL) {\r
            gEfiShellProtocol->FreeFileList(&List);\r
          }\r
          return (ShellStatus);\r
        }\r
      }\r
      if (List!=NULL) {\r
        gEfiShellProtocol->FreeFileList(&List);\r
      }\r
    }\r
  }\r
\r
  if (!(StrCmp(Node->FileName, L".") == 0 || StrCmp(Node->FileName, L"..") == 0)) {\r
    //\r
    // now delete the current node...\r
    //\r
    if (!Quiet) {\r
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE), gShellLevel2HiiHandle, Node->FullName);\r
    }\r
    Status = gEfiShellProtocol->DeleteFile(Node->Handle);\r
    Node->Handle = NULL;\r
  }\r
\r
  //\r
  // We cant allow for the warning here! (Dont use EFI_ERROR Macro).\r
  //\r
  if (Status != EFI_SUCCESS){\r
    ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE_ERR), gShellLevel2HiiHandle, Status);\r
    return (SHELL_ACCESS_DENIED);\r
  } else {\r
    if (!Quiet) {\r
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE_COMP), gShellLevel2HiiHandle);\r
    }\r
    return (SHELL_SUCCESS);\r
  }\r
}\r
\r
/**\r
  Determines if a Node is a valid delete target.  Will prevent deleting the root directory.\r
\r
  @param[in] List       RESERVED.  Not used.\r
  @param[in] Node       The node to analyze.\r
  @param[in] Package    RESERVED.  Not used.\r
**/\r
BOOLEAN\r
IsValidDeleteTarget(\r
  IN CONST EFI_SHELL_FILE_INFO  *List,\r
  IN CONST EFI_SHELL_FILE_INFO  *Node,\r
  IN CONST LIST_ENTRY           *Package\r
  )\r
{\r
  CONST CHAR16        *TempLocation;\r
  BOOLEAN             RetVal;\r
  CHAR16              *SearchString;\r
  CHAR16              *Pattern;\r
  UINTN               Size;\r
\r
  if (Node == NULL || Node->FullName == NULL) {\r
    return (FALSE);\r
  }\r
\r
  TempLocation = StrStr(Node->FullName, L":");\r
  if (StrLen(TempLocation) <= 2) {\r
    //\r
    // Deleting the root directory is invalid.\r
    //\r
    return (FALSE);\r
  }\r
\r
  TempLocation = ShellGetCurrentDir(NULL);\r
  if (TempLocation == NULL) {\r
    //\r
    // No working directory is specified so whatever is left is ok.\r
    //\r
    return (TRUE);\r
  }\r
\r
  Pattern       = NULL;\r
  SearchString  = NULL;\r
  Size          = 0;\r
  Pattern       = StrnCatGrow(&Pattern, &Size, TempLocation  , 0);\r
  Pattern       = StrnCatGrow(&Pattern, &Size, L"\\"  , 0);\r
  Size = 0;\r
  SearchString  = StrnCatGrow(&SearchString, &Size, Node->FullName, 0);\r
  if (!EFI_ERROR(ShellIsDirectory(SearchString))) {\r
    SearchString  = StrnCatGrow(&SearchString, &Size, L"\\", 0);\r
    SearchString  = StrnCatGrow(&SearchString, &Size, L"*", 0);\r
  }\r
\r
  if (Pattern == NULL || SearchString == NULL) {\r
    RetVal = FALSE;\r
  } else {\r
    RetVal = TRUE;\r
    if (gUnicodeCollation->MetaiMatch(gUnicodeCollation, Pattern, SearchString)) {\r
      RetVal = FALSE;\r
    }\r
  }\r
\r
  SHELL_FREE_NON_NULL(Pattern     );\r
  SHELL_FREE_NON_NULL(SearchString);\r
\r
  return (RetVal);\r
}\r
\r
/**\r
  Function for 'rm' command.\r
\r
  @param[in] ImageHandle  Handle to the Image (NULL if Internal).\r
  @param[in] SystemTable  Pointer to the System Table (NULL if Internal).\r
**/\r
SHELL_STATUS\r
EFIAPI\r
ShellCommandRunRm (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  EFI_STATUS            Status;\r
  LIST_ENTRY            *Package;\r
  CHAR16                *ProblemParam;\r
  CONST CHAR16          *Param;\r
  SHELL_STATUS          ShellStatus;\r
  UINTN                 ParamCount;\r
  EFI_SHELL_FILE_INFO   *FileList;\r
  EFI_SHELL_FILE_INFO   *Node;\r
\r
  ProblemParam        = NULL;\r
  ShellStatus         = SHELL_SUCCESS;\r
  ParamCount          = 0;\r
  FileList            = NULL;\r
\r
  //\r
  // initialize the shell lib (we must be in non-auto-init...)\r
  //\r
  Status = ShellInitialize();\r
  ASSERT_EFI_ERROR(Status);\r
\r
  //\r
  // parse the command line\r
  //\r
  Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);\r
  if (EFI_ERROR(Status)) {\r
    if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {\r
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"rm", ProblemParam);\r
      FreePool(ProblemParam);\r
      ShellStatus = SHELL_INVALID_PARAMETER;\r
    } else {\r
      ASSERT(FALSE);\r
    }\r
  } else {\r
    //\r
    // check for "-?"\r
    //\r
    if (ShellCommandLineGetFlag(Package, L"-?")) {\r
      ASSERT(FALSE);\r
    }\r
    if (ShellCommandLineGetRawValue(Package, 1) == NULL) {\r
      //\r
      // we insufficient parameters\r
      //\r
      ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel2HiiHandle, L"rm");\r
      ShellStatus = SHELL_INVALID_PARAMETER;\r
    } else {\r
      //\r
      // get a list with each file specified by parameters\r
      // if parameter is a directory then add all the files below it to the list\r
      //\r
      for ( ParamCount = 1, Param = ShellCommandLineGetRawValue(Package, ParamCount)\r
          ; Param != NULL\r
          ; ParamCount++, Param = ShellCommandLineGetRawValue(Package, ParamCount)\r
         ){\r
        Status = ShellOpenFileMetaArg((CHAR16*)Param, EFI_FILE_MODE_WRITE|EFI_FILE_MODE_READ, &FileList);\r
        if (EFI_ERROR(Status) || FileList == NULL || IsListEmpty(&FileList->Link)) {\r
          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_NF), gShellLevel2HiiHandle, L"rm", (CHAR16*)Param);\r
          ShellStatus = SHELL_NOT_FOUND;\r
          break;\r
        }\r
      }\r
\r
      if (ShellStatus == SHELL_SUCCESS){\r
        //\r
        // loop through the list and make sure we are not aborting...\r
        //\r
        for ( Node = (EFI_SHELL_FILE_INFO*)GetFirstNode(&FileList->Link)\r
            ; !IsNull(&FileList->Link, &Node->Link) && !ShellGetExecutionBreakFlag()\r
            ; Node = (EFI_SHELL_FILE_INFO*)GetNextNode(&FileList->Link, &Node->Link)\r
           ){\r
          //\r
          // skip the directory traversing stuff...\r
          //\r
          if (StrCmp(Node->FileName, L".") == 0 || StrCmp(Node->FileName, L"..") == 0) {\r
            continue;\r
          }\r
\r
          //\r
          // do the deleting of nodes\r
          //\r
          if (EFI_ERROR(Node->Status)){\r
            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE_ERR2), gShellLevel2HiiHandle, Node->Status);\r
            ShellStatus = SHELL_ACCESS_DENIED;\r
            break;\r
          }\r
          if (!IsValidDeleteTarget(FileList, Node, Package)) {\r
            ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE_ERR3), gShellLevel2HiiHandle, Node->FullName);\r
            ShellStatus = SHELL_INVALID_PARAMETER;\r
            break;\r
          }\r
\r
          ShellStatus = CascadeDelete(Node, ShellCommandLineGetFlag(Package, L"-q"));\r
        }\r
      }\r
      //\r
      // Free the fileList\r
      //\r
      if (FileList != NULL) {\r
        Status = ShellCloseFileMetaArg(&FileList);\r
      }\r
      FileList = NULL;\r
    }\r
\r
    //\r
    // free the command line package\r
    //\r
    ShellCommandLineFreeVarList (Package);\r
  }\r
\r
  return (ShellStatus);\r
}\r
\r