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351 lines
12 KiB
351 lines
12 KiB
4 years ago
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/** @file
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Main file for NULL named library for level 2 shell command functions.
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these functions are:
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attrib,
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cd,
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cp,
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date*,
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time*,
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load,
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ls,
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map,
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mkdir,
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mv,
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parse,
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rm,
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reset,
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set,
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timezone*,
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vol
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* functions are non-interactive only
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Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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Copyright (c) 2009 - 2018, 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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CONST CHAR16 mFileName[] = L"ShellCommands";
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EFI_HANDLE gShellLevel2HiiHandle = NULL;
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/**
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Get the filename to get help text from if not using HII.
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@retval The filename.
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**/
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CONST CHAR16*
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EFIAPI
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ShellCommandGetManFileNameLevel2 (
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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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Constructor for the Shell Level 2 Commands library.
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Install the handlers for level 2 UEFI Shell 2.0 commands.
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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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@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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ShellLevel2CommandsLibConstructor (
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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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// if shell level is less than 2 do nothing
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//
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if (PcdGet8(PcdShellSupportLevel) < 2) {
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return (EFI_SUCCESS);
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}
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gShellLevel2HiiHandle = HiiAddPackages (&gShellLevel2HiiGuid, gImageHandle, UefiShellLevel2CommandsLibStrings, NULL);
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if (gShellLevel2HiiHandle == NULL) {
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return (EFI_DEVICE_ERROR);
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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"attrib", ShellCommandRunAttrib , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_ATTRIB) );
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ShellCommandRegisterCommandName(L"cd", ShellCommandRunCd , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_CD) );
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ShellCommandRegisterCommandName(L"cp", ShellCommandRunCp , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_CP) );
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ShellCommandRegisterCommandName(L"load", ShellCommandRunLoad , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_LOAD) );
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ShellCommandRegisterCommandName(L"map", ShellCommandRunMap , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_MAP) );
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ShellCommandRegisterCommandName(L"mkdir", ShellCommandRunMkDir , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_MKDIR) );
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ShellCommandRegisterCommandName(L"mv", ShellCommandRunMv , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_MV) );
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ShellCommandRegisterCommandName(L"parse", ShellCommandRunParse , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_PARSE) );
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ShellCommandRegisterCommandName(L"reset", ShellCommandRunReset , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_RESET) );
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ShellCommandRegisterCommandName(L"set", ShellCommandRunSet , ShellCommandGetManFileNameLevel2, 2, L"",FALSE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_SET) );
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ShellCommandRegisterCommandName(L"ls", ShellCommandRunLs , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_LS) );
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ShellCommandRegisterCommandName(L"rm", ShellCommandRunRm , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_RM) );
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ShellCommandRegisterCommandName(L"vol", ShellCommandRunVol , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_VOL) );
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//
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// support for permanent (built in) aliases
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//
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ShellCommandRegisterAlias(L"rm", L"del");
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ShellCommandRegisterAlias(L"ls", L"dir");
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ShellCommandRegisterAlias(L"cp", L"copy");
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ShellCommandRegisterAlias(L"mkdir", L"md");
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ShellCommandRegisterAlias(L"cd ..", L"cd..");
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ShellCommandRegisterAlias(L"cd \\", L"cd\\");
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ShellCommandRegisterAlias(L"mv", L"ren");
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ShellCommandRegisterAlias(L"mv", L"move");
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ShellCommandRegisterAlias(L"map", L"mount");
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//
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// These are installed in level 2 or 3...
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//
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if (PcdGet8(PcdShellSupportLevel) == 2 || PcdGet8(PcdShellSupportLevel) == 3) {
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ShellCommandRegisterCommandName(L"date", ShellCommandRunDate , ShellCommandGetManFileNameLevel2, PcdGet8(PcdShellSupportLevel), L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_DATE) );
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ShellCommandRegisterCommandName(L"time", ShellCommandRunTime , ShellCommandGetManFileNameLevel2, PcdGet8(PcdShellSupportLevel), L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_TIME) );
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ShellCommandRegisterCommandName(L"timezone", ShellCommandRunTimeZone, ShellCommandGetManFileNameLevel2, PcdGet8(PcdShellSupportLevel), L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_TIMEZONE));
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} else {
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DEBUG_CODE_BEGIN();
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//
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// we want to be able to test these so install them under a different name in debug mode...
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//
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ShellCommandRegisterCommandName(L"l2date", ShellCommandRunDate , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_DATE) );
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ShellCommandRegisterCommandName(L"l2time", ShellCommandRunTime , ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_TIME) );
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ShellCommandRegisterCommandName(L"l2timezone", ShellCommandRunTimeZone, ShellCommandGetManFileNameLevel2, 2, L"", TRUE, gShellLevel2HiiHandle, STRING_TOKEN(STR_GET_HELP_TIMEZONE));
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DEBUG_CODE_END();
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}
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return (EFI_SUCCESS);
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}
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/**
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Destructor for the library. free any resources.
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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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@retval EFI_SUCCESS Always returned.
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**/
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EFI_STATUS
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EFIAPI
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ShellLevel2CommandsLibDestructor (
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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 (gShellLevel2HiiHandle != NULL) {
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HiiRemovePackages(gShellLevel2HiiHandle);
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}
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return (EFI_SUCCESS);
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}
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/**
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returns a fully qualified directory (contains a map drive at the begining)
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path from a unknown directory path.
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If Path is already fully qualified this will return a duplicat otherwise this
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will use get the current directory and use that to build the fully qualified
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version.
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if the return value is not NULL it must be caller freed.
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@param[in] Path The unknown Path Value
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@retval NULL A memory allocation failed
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@retval NULL A fully qualified path could not be discovered.
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@retval other An allocated pointer to a fuly qualified path.
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**/
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CHAR16*
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GetFullyQualifiedPath(
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IN CONST CHAR16* Path
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)
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{
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CHAR16 *PathToReturn;
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UINTN Size;
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CONST CHAR16 *CurDir;
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PathToReturn = NULL;
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Size = 0;
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ASSERT((PathToReturn == NULL && Size == 0) || (PathToReturn != NULL));
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//
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// convert a local path to an absolute path
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//
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if (StrStr(Path, L":") == NULL) {
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CurDir = gEfiShellProtocol->GetCurDir(NULL);
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StrnCatGrow(&PathToReturn, &Size, CurDir, 0);
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StrnCatGrow(&PathToReturn, &Size, L"\\", 0);
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if (*Path == L'\\') {
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Path++;
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}
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}
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StrnCatGrow(&PathToReturn, &Size, Path, 0);
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PathCleanUpDirectories(PathToReturn);
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if (PathToReturn == NULL) {
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return NULL;
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}
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while (PathToReturn[StrLen(PathToReturn)-1] == L'*') {
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PathToReturn[StrLen(PathToReturn)-1] = CHAR_NULL;
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}
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return (PathToReturn);
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}
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/**
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Function to verify all intermediate directories in the path.
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@param[in] Path The pointer to the path to fix.
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@retval EFI_SUCCESS The operation was successful.
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**/
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EFI_STATUS
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VerifyIntermediateDirectories (
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IN CONST CHAR16 *Path
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)
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{
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EFI_STATUS Status;
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CHAR16 *PathCopy;
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CHAR16 *TempSpot;
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SHELL_FILE_HANDLE FileHandle;
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ASSERT(Path != NULL);
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Status = EFI_SUCCESS;
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PathCopy = NULL;
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PathCopy = StrnCatGrow(&PathCopy, NULL, Path, 0);
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FileHandle = NULL;
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if (PathCopy == NULL) {
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return (EFI_OUT_OF_RESOURCES);
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}
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for (TempSpot = &PathCopy[StrLen(PathCopy)-1] ; *TempSpot != CHAR_NULL && *TempSpot != L'\\' ; TempSpot = &PathCopy[StrLen(PathCopy)-1]){
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*TempSpot = CHAR_NULL;
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}
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if (*TempSpot == L'\\') {
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*TempSpot = CHAR_NULL;
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}
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if (PathCopy != NULL && *PathCopy != CHAR_NULL) {
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Status = VerifyIntermediateDirectories(PathCopy);
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if (PathCopy[StrLen(PathCopy)-1] != L':') {
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if (!EFI_ERROR(Status)) {
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Status = ShellOpenFileByName(PathCopy, &FileHandle, EFI_FILE_MODE_READ, 0);
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if (FileHandle != NULL) {
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ShellCloseFile(&FileHandle);
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}
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}
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}
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}
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SHELL_FREE_NON_NULL(PathCopy);
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return (Status);
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}
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/**
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String comparison without regard to case for a limited number of characters.
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@param[in] Source The first item to compare.
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@param[in] Target The second item to compare.
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@param[in] Count How many characters to compare.
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@retval 0 Source and Target are identical strings without regard to case.
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@retval !=0 Source is not identical to Target.
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**/
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INTN
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StrniCmp(
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IN CONST CHAR16 *Source,
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IN CONST CHAR16 *Target,
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IN CONST UINTN Count
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)
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{
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CHAR16 *SourceCopy;
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CHAR16 *TargetCopy;
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UINTN SourceLength;
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UINTN TargetLength;
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INTN Result;
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if (Count == 0) {
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return 0;
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}
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SourceLength = StrLen (Source);
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TargetLength = StrLen (Target);
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SourceLength = MIN (SourceLength, Count);
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TargetLength = MIN (TargetLength, Count);
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SourceCopy = AllocateCopyPool ((SourceLength + 1) * sizeof (CHAR16), Source);
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if (SourceCopy == NULL) {
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return -1;
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}
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TargetCopy = AllocateCopyPool ((TargetLength + 1) * sizeof (CHAR16), Target);
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if (TargetCopy == NULL) {
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FreePool (SourceCopy);
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return -1;
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}
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SourceCopy[SourceLength] = L'\0';
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TargetCopy[TargetLength] = L'\0';
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Result = gUnicodeCollation->StriColl (gUnicodeCollation, SourceCopy, TargetCopy);
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FreePool (SourceCopy);
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FreePool (TargetCopy);
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return Result;
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}
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/**
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Cleans off all the quotes in the string.
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@param[in] OriginalString pointer to the string to be cleaned.
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@param[out] CleanString The new string with all quotes removed.
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Memory allocated in the function and free
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by caller.
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@retval EFI_SUCCESS The operation was successful.
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**/
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EFI_STATUS
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ShellLevel2StripQuotes (
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IN CONST CHAR16 *OriginalString,
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OUT CHAR16 **CleanString
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)
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{
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CHAR16 *Walker;
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if (OriginalString == NULL || CleanString == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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*CleanString = AllocateCopyPool (StrSize (OriginalString), OriginalString);
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if (*CleanString == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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for (Walker = *CleanString; Walker != NULL && *Walker != CHAR_NULL ; Walker++) {
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if (*Walker == L'\"') {
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CopyMem(Walker, Walker+1, StrSize(Walker) - sizeof(Walker[0]));
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}
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}
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return EFI_SUCCESS;
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}
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