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audk/ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/HexEdit.c

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/** @file
Main entry point of editor
Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved. <BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "UefiShellDebug1CommandsLib.h"
#include "HexEditor.h"
//
// Global Variables
//
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
{L"-f", TypeFlag},
{L"-d", TypeFlag},
{L"-m", TypeFlag},
{NULL, TypeMax}
};
/**
Function for 'hexedit' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunHexEdit (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
CHAR16 *Buffer;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
LIST_ENTRY *Package;
CHAR16 *NewName;
CONST CHAR16 *Name;
UINTN Offset;
UINTN Size;
EDIT_FILE_TYPE WhatToDo;
Buffer = NULL;
ShellStatus = SHELL_SUCCESS;
NewName = NULL;
Buffer = NULL;
Name = NULL;
Offset = 0;
Size = 0;
WhatToDo = FileTypeNone;
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize();
ASSERT_EFI_ERROR(Status);
Status = CommandInit();
ASSERT_EFI_ERROR(Status);
//
// parse the command line
//
Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR(Status)) {
if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, ProblemParam);
FreePool(ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT(FALSE);
}
} else {
//
// Check for -d
//
if (ShellCommandLineGetFlag(Package, L"-d")){
if (ShellCommandLineGetCount(Package) < 4) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetCount(Package) > 4) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
WhatToDo = FileTypeDiskBuffer;
Name = ShellCommandLineGetRawValue(Package, 1);
Offset = ShellStrToUintn(ShellCommandLineGetRawValue(Package, 2));
Size = ShellStrToUintn(ShellCommandLineGetRawValue(Package, 3));
}
if (Offset == (UINTN)-1 || Size == (UINTN)-1) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM_VAL), gShellDebug1HiiHandle, L"-d");
ShellStatus = SHELL_INVALID_PARAMETER;
}
}
//
// check for -f
//
if (ShellCommandLineGetFlag(Package, L"-f") && (WhatToDo == FileTypeNone)){
if (ShellCommandLineGetCount(Package) < 2) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetCount(Package) > 2) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Name = ShellCommandLineGetRawValue(Package, 1);
if (Name == NULL || !IsValidFileName(Name)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Name);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
WhatToDo = FileTypeFileBuffer;
}
}
}
//
// check for -m
//
if (ShellCommandLineGetFlag(Package, L"-m") && (WhatToDo == FileTypeNone)){
if (ShellCommandLineGetCount(Package) < 3) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetCount(Package) > 3) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
WhatToDo = FileTypeMemBuffer;
Offset = ShellStrToUintn(ShellCommandLineGetRawValue(Package, 1));
Size = ShellStrToUintn(ShellCommandLineGetRawValue(Package, 2));
}
}
Name = ShellCommandLineGetRawValue(Package, 1);
if (WhatToDo == FileTypeNone && Name != NULL) {
if (ShellCommandLineGetCount(Package) > 2) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (!IsValidFileName(Name)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Name);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
WhatToDo = FileTypeFileBuffer;
}
} else if (WhatToDo == FileTypeNone) {
if (gEfiShellProtocol->GetCurDir(NULL) == NULL) {
ShellStatus = SHELL_NOT_FOUND;
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellDebug1HiiHandle);
} else {
NewName = EditGetDefaultFileName(L"bin");
Name = NewName;
WhatToDo = FileTypeFileBuffer;
}
}
if (ShellStatus == SHELL_SUCCESS && WhatToDo == FileTypeNone) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (WhatToDo == FileTypeFileBuffer && ShellGetCurrentDir(NULL) == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
}
if (ShellStatus == SHELL_SUCCESS) {
//
// Do the editor
//
Status = HMainEditorInit ();
if (EFI_ERROR (Status)) {
gST->ConOut->ClearScreen (gST->ConOut);
gST->ConOut->EnableCursor (gST->ConOut, TRUE);
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_HEXEDIT_INIT_FAILED), gShellDebug1HiiHandle);
} else {
HMainEditorBackup ();
switch (WhatToDo) {
case FileTypeFileBuffer:
Status = HBufferImageRead (
Name==NULL?L"":Name,
NULL,
0,
0,
0,
0,
FileTypeFileBuffer,
FALSE
);
break;
case FileTypeDiskBuffer:
Status = HBufferImageRead (
NULL,
Name==NULL?L"":Name,
Offset,
Size,
0,
0,
FileTypeDiskBuffer,
FALSE
);
break;
case FileTypeMemBuffer:
Status = HBufferImageRead (
NULL,
NULL,
0,
0,
(UINT32) Offset,
Size,
FileTypeMemBuffer,
FALSE
);
break;
default:
Status = EFI_NOT_FOUND;
break;
}
if (!EFI_ERROR (Status)) {
HMainEditorRefresh ();
Status = HMainEditorKeyInput ();
}
if (Status != EFI_OUT_OF_RESOURCES) {
//
// back up the status string
//
Buffer = CatSPrint (NULL, L"%s\r\n", StatusBarGetString());
}
}
//
// cleanup
//
HMainEditorCleanup ();
if (!EFI_ERROR (Status)) {
if (ShellStatus == SHELL_SUCCESS) {
ShellStatus = SHELL_UNSUPPORTED;
}
}
//
// print editor exit code on screen
//
if (Status == EFI_OUT_OF_RESOURCES) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellDebug1HiiHandle);
} else if (EFI_ERROR(Status)){
if (Buffer != NULL) {
if (StrCmp (Buffer, L"") != 0) {
//
// print out the status string
//
ShellPrintEx(-1, -1, L"%s", Buffer);
} else {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_HEXEDIT_UNKNOWN_EDITOR), gShellDebug1HiiHandle);
}
} else {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_HEXEDIT_UNKNOWN_EDITOR), gShellDebug1HiiHandle);
}
}
}
ShellCommandLineFreeVarList (Package);
}
SHELL_FREE_NON_NULL (Buffer);
SHELL_FREE_NON_NULL (NewName);
return ShellStatus;
}
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