mirror of https://github.com/acidanthera/audk.git
404 lines
10 KiB
C
404 lines
10 KiB
C
/** @file
|
|
Functions to deal with file buffer.
|
|
|
|
Copyright (c) 2005 - 2015, 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 "HexEditor.h"
|
|
|
|
extern EFI_HANDLE HImageHandleBackup;
|
|
extern HEFI_EDITOR_BUFFER_IMAGE HBufferImage;
|
|
|
|
extern BOOLEAN HBufferImageNeedRefresh;
|
|
extern BOOLEAN HBufferImageOnlyLineNeedRefresh;
|
|
extern BOOLEAN HBufferImageMouseNeedRefresh;
|
|
|
|
extern HEFI_EDITOR_GLOBAL_EDITOR HMainEditor;
|
|
|
|
HEFI_EDITOR_FILE_IMAGE HFileImage;
|
|
HEFI_EDITOR_FILE_IMAGE HFileImageBackupVar;
|
|
|
|
//
|
|
// for basic initialization of HFileImage
|
|
//
|
|
HEFI_EDITOR_BUFFER_IMAGE HFileImageConst = {
|
|
NULL,
|
|
0,
|
|
FALSE
|
|
};
|
|
|
|
/**
|
|
Initialization function for HFileImage
|
|
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
**/
|
|
EFI_STATUS
|
|
HFileImageInit (
|
|
VOID
|
|
)
|
|
{
|
|
//
|
|
// basically initialize the HFileImage
|
|
//
|
|
CopyMem (&HFileImage, &HFileImageConst, sizeof (HFileImage));
|
|
|
|
CopyMem (
|
|
&HFileImageBackupVar,
|
|
&HFileImageConst,
|
|
sizeof (HFileImageBackupVar)
|
|
);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Backup function for HFileImage. Only a few fields need to be backup.
|
|
This is for making the file buffer refresh as few as possible.
|
|
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
|
|
**/
|
|
EFI_STATUS
|
|
HFileImageBackup (
|
|
VOID
|
|
)
|
|
{
|
|
SHELL_FREE_NON_NULL (HFileImageBackupVar.FileName);
|
|
HFileImageBackupVar.FileName = CatSPrint(NULL, L"%s", HFileImage.FileName);
|
|
if (HFileImageBackupVar.FileName == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Cleanup function for HFileImage.
|
|
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
**/
|
|
EFI_STATUS
|
|
HFileImageCleanup (
|
|
VOID
|
|
)
|
|
{
|
|
|
|
SHELL_FREE_NON_NULL (HFileImage.FileName);
|
|
SHELL_FREE_NON_NULL (HFileImageBackupVar.FileName);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Set FileName field in HFileImage
|
|
|
|
@param[in] Str File name to set.
|
|
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
|
|
**/
|
|
EFI_STATUS
|
|
HFileImageSetFileName (
|
|
IN CONST CHAR16 *Str
|
|
)
|
|
{
|
|
UINTN Size;
|
|
UINTN Index;
|
|
|
|
//
|
|
// free the old file name
|
|
//
|
|
SHELL_FREE_NON_NULL (HFileImage.FileName);
|
|
|
|
Size = StrLen (Str);
|
|
|
|
HFileImage.FileName = AllocateZeroPool (2 * (Size + 1));
|
|
if (HFileImage.FileName == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
for (Index = 0; Index < Size; Index++) {
|
|
HFileImage.FileName[Index] = Str[Index];
|
|
}
|
|
|
|
HFileImage.FileName[Size] = L'\0';
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Read a file from disk into HBufferImage.
|
|
|
|
@param[in] FileName filename to read.
|
|
@param[in] Recover if is for recover, no information print.
|
|
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
|
|
@retval EFI_LOAD_ERROR A load error occured.
|
|
**/
|
|
EFI_STATUS
|
|
HFileImageRead (
|
|
IN CONST CHAR16 *FileName,
|
|
IN BOOLEAN Recover
|
|
)
|
|
{
|
|
HEFI_EDITOR_LINE *Line;
|
|
UINT8 *Buffer;
|
|
CHAR16 *UnicodeBuffer;
|
|
EFI_STATUS Status;
|
|
|
|
//
|
|
// variable initialization
|
|
//
|
|
Line = NULL;
|
|
|
|
//
|
|
// in this function, when you return error ( except EFI_OUT_OF_RESOURCES )
|
|
// you should set status string
|
|
// since this function maybe called before the editorhandleinput loop
|
|
// so any error will cause editor return
|
|
// so if you want to print the error status
|
|
// you should set the status string
|
|
//
|
|
Status = ReadFileIntoBuffer (FileName, (VOID**)&Buffer, &HFileImage.Size, &HFileImage.ReadOnly);
|
|
//
|
|
// NULL pointer is only also a failure for a non-zero file size.
|
|
//
|
|
if ((EFI_ERROR(Status)) || (Buffer == NULL && HFileImage.Size != 0)) {
|
|
UnicodeBuffer = CatSPrint(NULL, L"Read error on file %s: %r", FileName, Status);
|
|
if (UnicodeBuffer == NULL) {
|
|
SHELL_FREE_NON_NULL(Buffer);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
StatusBarSetStatusString (UnicodeBuffer);
|
|
FreePool (UnicodeBuffer);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
HFileImageSetFileName (FileName);
|
|
|
|
//
|
|
// free the old lines
|
|
//
|
|
HBufferImageFree ();
|
|
|
|
Status = HBufferImageBufferToList (Buffer, HFileImage.Size);
|
|
SHELL_FREE_NON_NULL (Buffer);
|
|
if (EFI_ERROR (Status)) {
|
|
StatusBarSetStatusString (L"Error parsing file.");
|
|
return Status;
|
|
}
|
|
|
|
HBufferImage.DisplayPosition.Row = 2;
|
|
HBufferImage.DisplayPosition.Column = 10;
|
|
HBufferImage.MousePosition.Row = 2;
|
|
HBufferImage.MousePosition.Column = 10;
|
|
HBufferImage.LowVisibleRow = 1;
|
|
HBufferImage.HighBits = TRUE;
|
|
HBufferImage.BufferPosition.Row = 1;
|
|
HBufferImage.BufferPosition.Column = 1;
|
|
HBufferImage.BufferType = FileTypeFileBuffer;
|
|
|
|
if (!Recover) {
|
|
UnicodeBuffer = CatSPrint(NULL, L"%d Lines Read", HBufferImage.NumLines);
|
|
if (UnicodeBuffer == NULL) {
|
|
SHELL_FREE_NON_NULL(Buffer);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
StatusBarSetStatusString (UnicodeBuffer);
|
|
FreePool (UnicodeBuffer);
|
|
|
|
HMainEditor.SelectStart = 0;
|
|
HMainEditor.SelectEnd = 0;
|
|
}
|
|
|
|
//
|
|
// has line
|
|
//
|
|
if (HBufferImage.Lines != 0) {
|
|
HBufferImage.CurrentLine = CR (HBufferImage.ListHead->ForwardLink, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);
|
|
} else {
|
|
//
|
|
// create a dummy line
|
|
//
|
|
Line = HBufferImageCreateLine ();
|
|
if (Line == NULL) {
|
|
SHELL_FREE_NON_NULL(Buffer);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
HBufferImage.CurrentLine = Line;
|
|
}
|
|
|
|
HBufferImage.Modified = FALSE;
|
|
HBufferImageNeedRefresh = TRUE;
|
|
HBufferImageOnlyLineNeedRefresh = FALSE;
|
|
HBufferImageMouseNeedRefresh = TRUE;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Save lines in HBufferImage to disk.
|
|
|
|
@param[in] FileName The file name.
|
|
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
|
|
@retval EFI_LOAD_ERROR A load error occured.
|
|
**/
|
|
EFI_STATUS
|
|
HFileImageSave (
|
|
IN CHAR16 *FileName
|
|
)
|
|
{
|
|
|
|
LIST_ENTRY *Link;
|
|
HEFI_EDITOR_LINE *Line;
|
|
CHAR16 *Str;
|
|
EFI_STATUS Status;
|
|
UINTN NumLines;
|
|
SHELL_FILE_HANDLE FileHandle;
|
|
UINTN TotalSize;
|
|
UINT8 *Buffer;
|
|
UINT8 *Ptr;
|
|
EDIT_FILE_TYPE BufferTypeBackup;
|
|
|
|
BufferTypeBackup = HBufferImage.BufferType;
|
|
HBufferImage.BufferType = FileTypeFileBuffer;
|
|
|
|
//
|
|
// if is the old file
|
|
//
|
|
if (HFileImage.FileName != NULL && FileName != NULL && StrCmp (FileName, HFileImage.FileName) == 0) {
|
|
//
|
|
// check whether file exists on disk
|
|
//
|
|
if (ShellIsFile(FileName) == EFI_SUCCESS) {
|
|
//
|
|
// current file exists on disk
|
|
// so if not modified, then not save
|
|
//
|
|
if (HBufferImage.Modified == FALSE) {
|
|
return EFI_SUCCESS;
|
|
}
|
|
//
|
|
// if file is read-only, set error
|
|
//
|
|
if (HFileImage.ReadOnly == TRUE) {
|
|
StatusBarSetStatusString (L"Read Only File Can Not Be Saved");
|
|
return EFI_SUCCESS;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ShellIsDirectory(FileName) == EFI_SUCCESS) {
|
|
StatusBarSetStatusString (L"Directory Can Not Be Saved");
|
|
return EFI_LOAD_ERROR;
|
|
}
|
|
|
|
Status = ShellOpenFileByName (FileName, &FileHandle, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE, 0);
|
|
|
|
if (!EFI_ERROR (Status)) {
|
|
//
|
|
// the file exits, delete it
|
|
//
|
|
Status = ShellDeleteFile (&FileHandle);
|
|
if (EFI_ERROR (Status) || Status == EFI_WARN_DELETE_FAILURE) {
|
|
StatusBarSetStatusString (L"Write File Failed");
|
|
return EFI_LOAD_ERROR;
|
|
}
|
|
}
|
|
|
|
//
|
|
// write all the lines back to disk
|
|
//
|
|
NumLines = 0;
|
|
TotalSize = 0;
|
|
for (Link = HBufferImage.ListHead->ForwardLink; Link != HBufferImage.ListHead; Link = Link->ForwardLink) {
|
|
Line = CR (Link, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);
|
|
|
|
if (Line->Size != 0) {
|
|
TotalSize += Line->Size;
|
|
}
|
|
//
|
|
// end of if Line -> Size != 0
|
|
//
|
|
NumLines++;
|
|
}
|
|
//
|
|
// end of for Link
|
|
//
|
|
Buffer = AllocateZeroPool (TotalSize);
|
|
if (Buffer == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
Ptr = Buffer;
|
|
for (Link = HBufferImage.ListHead->ForwardLink; Link != HBufferImage.ListHead; Link = Link->ForwardLink) {
|
|
Line = CR (Link, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);
|
|
|
|
if (Line->Size != 0) {
|
|
CopyMem (Ptr, Line->Buffer, Line->Size);
|
|
Ptr += Line->Size;
|
|
}
|
|
//
|
|
// end of if Line -> Size != 0
|
|
//
|
|
}
|
|
|
|
|
|
Status = ShellOpenFileByName (FileName, &FileHandle, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE|EFI_FILE_MODE_CREATE, 0);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
StatusBarSetStatusString (L"Create File Failed");
|
|
return EFI_LOAD_ERROR;
|
|
}
|
|
|
|
Status = ShellWriteFile (FileHandle, &TotalSize, Buffer);
|
|
FreePool (Buffer);
|
|
if (EFI_ERROR (Status)) {
|
|
ShellDeleteFile (&FileHandle);
|
|
return EFI_LOAD_ERROR;
|
|
}
|
|
|
|
ShellCloseFile(&FileHandle);
|
|
|
|
HBufferImage.Modified = FALSE;
|
|
|
|
//
|
|
// set status string
|
|
//
|
|
Str = CatSPrint(NULL, L"%d Lines Wrote", NumLines);
|
|
StatusBarSetStatusString (Str);
|
|
FreePool (Str);
|
|
|
|
//
|
|
// now everything is ready , you can set the new file name to filebuffer
|
|
//
|
|
if ((BufferTypeBackup != FileTypeFileBuffer && FileName != NULL) ||
|
|
(FileName != NULL && HFileImage.FileName != NULL && StringNoCaseCompare (&FileName, &HFileImage.FileName) != 0)){
|
|
//
|
|
// not the same
|
|
//
|
|
HFileImageSetFileName (FileName);
|
|
if (HFileImage.FileName == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
}
|
|
|
|
HFileImage.ReadOnly = FALSE;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|