diff options
| author | jcarsey <jcarsey@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-09-14 05:18:09 +0000 |
|---|---|---|
| committer | jcarsey <jcarsey@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-09-14 05:18:09 +0000 |
| commit | a405b86d274d32b92f69842bfb9a1ab143128f57 (patch) | |
| tree | b6fb97d9a65152d2b6527d6cd226a5b48c675dd8 /ShellPkg/Application/Shell/FileHandleWrappers.c | |
| parent | 52fb4d3d133883c6e0e8b8ee8a7af590a920f5eb (diff) | |
| download | edk2-a405b86d274d32b92f69842bfb9a1ab143128f57.tar.gz edk2-a405b86d274d32b92f69842bfb9a1ab143128f57.tar.bz2 edk2-a405b86d274d32b92f69842bfb9a1ab143128f57.zip | |
udk2010.up2.shell initial release.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10874 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ShellPkg/Application/Shell/FileHandleWrappers.c')
| -rw-r--r-- | ShellPkg/Application/Shell/FileHandleWrappers.c | 1563 |
1 files changed, 1563 insertions, 0 deletions
diff --git a/ShellPkg/Application/Shell/FileHandleWrappers.c b/ShellPkg/Application/Shell/FileHandleWrappers.c new file mode 100644 index 0000000000..02e42e3c9d --- /dev/null +++ b/ShellPkg/Application/Shell/FileHandleWrappers.c @@ -0,0 +1,1563 @@ +/** @file
+ EFI_FILE_PROTOCOL wrappers for other items (Like Environment Variables,
+ StdIn, StdOut, StdErr, etc...).
+
+ Copyright (c) 2009 - 2010, 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 "Shell.h"
+#include "FileHandleInternal.h"
+
+/**
+ File style interface for console (Open).
+
+ @param[in] This Ignored.
+ @param[out] NewHandle Ignored.
+ @param[in] FileName Ignored.
+ @param[in] OpenMode Ignored.
+ @param[in] Attributes Ignored.
+
+ @retval EFI_NOT_FOUND
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceOpenNotFound(
+ IN EFI_FILE_PROTOCOL *This,
+ OUT EFI_FILE_PROTOCOL **NewHandle,
+ IN CHAR16 *FileName,
+ IN UINT64 OpenMode,
+ IN UINT64 Attributes
+ )
+{
+ return (EFI_NOT_FOUND);
+}
+
+/**
+ File style interface for console (Close, Delete, & Flush)
+
+ @param[in] This Ignored.
+
+ @retval EFI_SUCCESS
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceNopGeneric(
+ IN EFI_FILE_PROTOCOL *This
+ )
+{
+ return (EFI_SUCCESS);
+}
+
+/**
+ File style interface for console (GetPosition).
+
+ @param[in] This Ignored.
+ @param[out] Position Ignored.
+
+ @retval EFI_UNSUPPORTED
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceNopGetPosition(
+ IN EFI_FILE_PROTOCOL *This,
+ OUT UINT64 *Position
+ )
+{
+ return (EFI_UNSUPPORTED);
+}
+
+/**
+ File style interface for console (SetPosition).
+
+ @param[in] This Ignored.
+ @param[in] Position Ignored.
+
+ @retval EFI_UNSUPPORTED
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceNopSetPosition(
+ IN EFI_FILE_PROTOCOL *This,
+ IN UINT64 Position
+ )
+{
+ return (EFI_UNSUPPORTED);
+}
+
+/**
+ File style interface for console (GetInfo).
+
+ @param[in] This Ignored.
+ @param[in] InformationType Ignored.
+ @param[in,out] BufferSize Ignored.
+ @param[out] Buffer Ignored.
+
+ @retval EFI_UNSUPPORTED
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceNopGetInfo(
+ IN EFI_FILE_PROTOCOL *This,
+ IN EFI_GUID *InformationType,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ return (EFI_UNSUPPORTED);
+}
+
+/**
+ File style interface for console (SetInfo).
+
+ @param[in] This Ignored.
+ @param[in] InformationType Ignored.
+ @param[in] BufferSize Ignored.
+ @param[in] Buffer Ignored.
+
+ @retval EFI_UNSUPPORTED
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceNopSetInfo(
+ IN EFI_FILE_PROTOCOL *This,
+ IN EFI_GUID *InformationType,
+ IN UINTN BufferSize,
+ IN VOID *Buffer
+ )
+{
+ return (EFI_UNSUPPORTED);
+}
+
+/**
+ File style interface for StdOut (Write).
+
+ Writes data to the screen.
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[in,out] BufferSize Size in bytes of Buffer.
+ @param[in] Buffer The pointer to the buffer to write.
+
+ @retval EFI_UNSUPPORTED No output console is supported.
+ @return A return value from gST->ConOut->OutputString.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceStdOutWrite(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ )
+{
+ if (ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoConsoleOut) {
+ return (EFI_UNSUPPORTED);
+ } else {
+ return (gST->ConOut->OutputString(gST->ConOut, Buffer));
+ }
+}
+
+/**
+ File style interface for StdIn (Write).
+
+ @param[in] This Ignored.
+ @param[in] BufferSize Ignored.
+ @param[in] Buffer Ignored.
+
+ @retval EFI_UNSUPPORTED
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceStdInWrite(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ )
+{
+ return (EFI_UNSUPPORTED);
+}
+
+/**
+ File style interface for console StdErr (Write).
+
+ Writes error to the error output.
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[in,out] BufferSize Size in bytes of Buffer.
+ @param[in] Buffer The pointer to the buffer to write.
+
+ @return A return value from gST->StdErr->OutputString.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceStdErrWrite(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ )
+{
+ return (gST->StdErr->OutputString(gST->StdErr, Buffer));
+}
+
+/**
+ File style interface for console StdOut (Read).
+
+ @param[in] This Ignored.
+ @param[in,out] BufferSize Ignored.
+ @param[out] Buffer Ignored.
+
+ @retval EFI_UNSUPPORTED
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceStdOutRead(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ return (EFI_UNSUPPORTED);
+}
+
+/**
+ File style interface for console StdErr (Read).
+
+ @param[in] This Ignored.
+ @param[in,out] BufferSize Ignored.
+ @param[out] Buffer Ignored.
+
+ @retval EFI_UNSUPPORTED
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceStdErrRead(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ return (EFI_UNSUPPORTED);
+}
+
+/**
+ File style interface for NUL file (Read).
+
+ @param[in] This Ignored.
+ @param[in,out] BufferSize Ignored.
+ @param[in] Buffer Ignored.
+
+ @retval EFI_SUCCESS
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceNulRead(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ return (EFI_SUCCESS);
+}
+
+/**
+ File style interface for NUL file (Write).
+
+ @param[in] This Ignored.
+ @param[in,out] BufferSize Ignored.
+ @param[in] Buffer Ignored.
+
+ @retval EFI_SUCCESS
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceNulWrite(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ )
+{
+ return (EFI_SUCCESS);
+}
+
+/**
+ File style interface for console (Read).
+
+ This will return a single line of input from the console.
+
+ @param This A pointer to the EFI_FILE_PROTOCOL instance that is the
+ file handle to read data from. Not used.
+ @param BufferSize On input, the size of the Buffer. On output, the amount
+ of data returned in Buffer. In both cases, the size is
+ measured in bytes.
+ @param Buffer The buffer into which the data is read.
+
+
+ @retval EFI_SUCCESS The data was read.
+ @retval EFI_NO_MEDIA The device has no medium.
+ @retval EFI_DEVICE_ERROR The device reported an error.
+ @retval EFI_DEVICE_ERROR An attempt was made to read from a deleted file.
+ @retval EFI_DEVICE_ERROR On entry, the current file position is beyond the end of the file.
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
+ @retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the current directory
+ entry. BufferSize has been updated with the size
+ needed to complete the request.
+ @retval EFI_OUT_OF_RESOURCES A memory allocation failed.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceStdInRead(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ CHAR16 *CurrentString;
+ BOOLEAN Done;
+ UINTN Column; // Column of current cursor
+ UINTN Row; // Row of current cursor
+ UINTN StartColumn; // Column at the beginning of the line
+ UINTN Update; // Line index for update
+ UINTN Delete; // Num of chars to delete from console after update
+ UINTN StringLen; // Total length of the line
+ UINTN StringCurPos; // Line index corresponding to the cursor
+ UINTN MaxStr; // Maximum possible line length
+ UINTN Index;
+ UINTN TotalColumn; // Num of columns in the console
+ UINTN TotalRow; // Num of rows in the console
+ UINTN SkipLength;
+ UINTN OutputLength; // Length of the update string
+ UINTN TailRow; // Row of end of line
+ UINTN TailColumn; // Column of end of line
+ EFI_INPUT_KEY Key;
+
+ BUFFER_LIST *LinePos;
+ BUFFER_LIST *NewPos;
+ BOOLEAN InScrolling;
+ EFI_STATUS Status;
+ BOOLEAN InTabScrolling; // Whether in TAB-completion state
+ EFI_SHELL_FILE_INFO *FoundFileList;
+ EFI_SHELL_FILE_INFO *TabLinePos;
+ EFI_SHELL_FILE_INFO *TempPos;
+ CHAR16 *TabStr;
+ CHAR16 *TabOutputStr;
+ BOOLEAN InQuotationMode;
+ CHAR16 *TempStr;
+ UINTN TabPos; // Start index of the string to search for TAB completion.
+ UINTN TabUpdatePos; // Start index of the string updated by TAB stroke
+// UINTN Count;
+ UINTN EventIndex;
+ CONST CHAR16 *Cwd;
+
+ //
+ // If buffer is not large enough to hold a CHAR16, return minimum buffer size
+ //
+ if (*BufferSize < sizeof (CHAR16) * 2) {
+ *BufferSize = sizeof (CHAR16) * 2;
+ return (EFI_BUFFER_TOO_SMALL);
+ }
+
+ Done = FALSE;
+ CurrentString = Buffer;
+ StringLen = 0;
+ StringCurPos = 0;
+ OutputLength = 0;
+ Update = 0;
+ Delete = 0;
+ LinePos = NewPos = (BUFFER_LIST*)(&ShellInfoObject.ViewingSettings.CommandHistory);
+ InScrolling = FALSE;
+ InTabScrolling = FALSE;
+ Status = EFI_SUCCESS;
+ TabLinePos = NULL;
+ FoundFileList = NULL;
+ TempPos = NULL;
+ TabPos = 0;
+ TabUpdatePos = 0;
+
+ //
+ // Allocate buffers
+ //
+ TabStr = AllocateZeroPool (*BufferSize);
+ if (TabStr == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ TabOutputStr = AllocateZeroPool (*BufferSize);
+ if (TabOutputStr == NULL) {
+ FreePool(TabStr);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ //
+ // Get the screen setting and the current cursor location
+ //
+ Column = StartColumn = gST->ConOut->Mode->CursorColumn;
+ Row = gST->ConOut->Mode->CursorRow;
+ gST->ConOut->QueryMode (gST->ConOut, gST->ConOut->Mode->Mode, &TotalColumn, &TotalRow);
+
+ //
+ // Limit the line length to the buffer size or the minimun size of the
+ // screen. (The smaller takes effect)
+ //
+ MaxStr = TotalColumn * (TotalRow - 1) - StartColumn;
+ if (MaxStr > *BufferSize / sizeof (CHAR16)) {
+ MaxStr = *BufferSize / sizeof (CHAR16);
+ }
+ ZeroMem (CurrentString, MaxStr * sizeof (CHAR16));
+ do {
+ //
+ // Read a key
+ //
+ gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &EventIndex);
+ Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+
+ //
+ // Press PageUp or PageDown to scroll the history screen up or down.
+ // Press any other key to quit scrolling.
+ //
+ if (Key.UnicodeChar == 0 && (Key.ScanCode == SCAN_PAGE_UP || Key.ScanCode == SCAN_PAGE_DOWN)) {
+ if (Key.ScanCode == SCAN_PAGE_UP) {
+ ConsoleLoggerDisplayHistory(FALSE, 0, ShellInfoObject.ConsoleInfo);
+ } else if (Key.ScanCode == SCAN_PAGE_DOWN) {
+ ConsoleLoggerDisplayHistory(TRUE, 0, ShellInfoObject.ConsoleInfo);
+ }
+
+ InScrolling = TRUE;
+ } else {
+ if (InScrolling) {
+ ConsoleLoggerStopHistory(ShellInfoObject.ConsoleInfo);
+ InScrolling = FALSE;
+ }
+ }
+
+ //
+ // If we are quitting TAB scrolling...
+ //
+ if (InTabScrolling && Key.UnicodeChar != CHAR_TAB) {
+ if (FoundFileList != NULL) {
+ ShellInfoObject.NewEfiShellProtocol->FreeFileList (&FoundFileList);
+ DEBUG_CODE(FoundFileList = NULL;);
+ }
+ InTabScrolling = FALSE;
+ }
+
+ switch (Key.UnicodeChar) {
+ case CHAR_CARRIAGE_RETURN:
+ //
+ // All done, print a newline at the end of the string
+ //
+ TailRow = Row + (StringLen - StringCurPos + Column) / TotalColumn;
+ TailColumn = (StringLen - StringCurPos + Column) % TotalColumn;
+ ShellPrintEx ((INT32)TailColumn, (INT32)TailRow, L"%N\n");
+ Done = TRUE;
+ break;
+
+ case CHAR_BACKSPACE:
+ if (StringCurPos != 0) {
+ //
+ // If not move back beyond string beginning, move all characters behind
+ // the current position one character forward
+ //
+ StringCurPos--;
+ Update = StringCurPos;
+ Delete = 1;
+ CopyMem (CurrentString + StringCurPos, CurrentString + StringCurPos + 1, sizeof (CHAR16) * (StringLen - StringCurPos));
+
+ //
+ // Adjust the current column and row
+ //
+ MoveCursorBackward (TotalColumn, &Column, &Row);
+ }
+ break;
+
+ case CHAR_TAB:
+ //
+ // handle auto complete of file and directory names...
+ //
+ if (InTabScrolling) {
+ ASSERT(FoundFileList != NULL);
+ ASSERT(TabLinePos != NULL);
+ TabLinePos = (EFI_SHELL_FILE_INFO*)GetNextNode(&(FoundFileList->Link), &TabLinePos->Link);
+ if (IsNull(&(FoundFileList->Link), &TabLinePos->Link)) {
+ TabLinePos = (EFI_SHELL_FILE_INFO*)GetNextNode(&(FoundFileList->Link), &TabLinePos->Link);
+ }
+ } else {
+ TabPos = 0;
+ TabUpdatePos = 0;
+ InQuotationMode = FALSE;
+ for (Index = 0; Index < StringLen; Index++) {
+ if (CurrentString[Index] == L'\"') {
+ InQuotationMode = (BOOLEAN)(!InQuotationMode);
+ }
+ if (CurrentString[Index] == L' ' && !InQuotationMode) {
+ TabPos = Index + 1;
+ TabUpdatePos = Index + 1;
+ }
+ if (CurrentString[Index] == L'\\') {
+ TabUpdatePos = Index + 1;
+ }
+ }
+ if (StrStr(CurrentString + TabPos, L":") == NULL) {
+ Cwd = ShellInfoObject.NewEfiShellProtocol->GetCurDir(NULL);
+ if (Cwd != NULL) {
+ StrCpy(TabStr, Cwd);
+ if (TabStr[StrLen(TabStr)-1] == L'\\' && *(CurrentString + TabPos) == L'\\' ) {
+ TabStr[StrLen(TabStr)-1] = CHAR_NULL;
+ }
+ StrnCat(TabStr, CurrentString + TabPos, (StringLen - TabPos) * sizeof (CHAR16));
+ } else {
+ StrCpy(TabStr, L"");
+ StrnCat(TabStr, CurrentString + TabPos, (StringLen - TabPos) * sizeof (CHAR16));
+ }
+ } else {
+ StrCpy(TabStr, CurrentString + TabPos);
+ }
+ StrCat(TabStr, L"*");
+ FoundFileList = NULL;
+// TabStr = CleanPath(TabStr);
+ Status = ShellInfoObject.NewEfiShellProtocol->FindFiles(TabStr, &FoundFileList);
+ for ( TempStr = CurrentString
+ ; *TempStr == L' '
+ ; TempStr++); // note the ';'... empty for loop
+ //
+ // make sure we have a list before we do anything more...
+ //
+ if (EFI_ERROR (Status) || FoundFileList == NULL) {
+ InTabScrolling = FALSE;
+ TabLinePos = NULL;
+ continue;
+ } else {
+ //
+ // enumerate through the list of files
+ //
+ for ( TempPos = (EFI_SHELL_FILE_INFO*)GetFirstNode(&(FoundFileList->Link))
+ ; !IsNull(&FoundFileList->Link, &TempPos->Link)
+ ; TempPos = (EFI_SHELL_FILE_INFO*)GetNextNode(&(FoundFileList->Link), &(TempPos->Link))
+ ){
+ //
+ // If "cd" is typed, only directory name will be auto-complete filled
+ // in either case . and .. will be removed.
+ //
+ if ((((TempStr[0] == L'c' || TempStr[0] == L'C') &&
+ (TempStr[1] == L'd' || TempStr[1] == L'D')
+ ) && ((ShellIsDirectory(TempPos->FullName) != EFI_SUCCESS)
+ ||(StrCmp(TempPos->FileName, L".") == 0)
+ ||(StrCmp(TempPos->FileName, L"..") == 0)
+ )) || ((StrCmp(TempPos->FileName, L".") == 0)
+ ||(StrCmp(TempPos->FileName, L"..") == 0))){
+ TabLinePos = TempPos;
+ TempPos = (EFI_SHELL_FILE_INFO*)(RemoveEntryList(&(TempPos->Link))->BackLink);
+ InternalFreeShellFileInfoNode(TabLinePos);
+ }
+ }
+ if (FoundFileList != NULL && !IsListEmpty(&FoundFileList->Link)) {
+ TabLinePos = (EFI_SHELL_FILE_INFO*)GetFirstNode(&FoundFileList->Link);
+ InTabScrolling = TRUE;
+ } else {
+ FreePool(FoundFileList);
+ FoundFileList = NULL;
+ }
+ }
+ }
+ break;
+
+ default:
+ if (Key.UnicodeChar >= ' ') {
+ //
+ // If we are at the buffer's end, drop the key
+ //
+ if (StringLen == MaxStr - 1 && (ShellInfoObject.ViewingSettings.InsertMode || StringCurPos == StringLen)) {
+ break;
+ }
+ //
+ // If in insert mode, make space by moving each other character 1
+ // space higher in the array
+ //
+ if (ShellInfoObject.ViewingSettings.InsertMode) {
+ CopyMem(CurrentString + StringCurPos + 1, CurrentString + StringCurPos, (StringLen - StringCurPos)*sizeof(CurrentString[0]));
+ }
+
+ CurrentString[StringCurPos] = Key.UnicodeChar;
+ Update = StringCurPos;
+
+ StringCurPos += 1;
+ OutputLength = 1;
+ }
+ break;
+
+ case 0:
+ switch (Key.ScanCode) {
+ case SCAN_DELETE:
+ //
+ // Move characters behind current position one character forward
+ //
+ if (StringLen != 0) {
+ Update = StringCurPos;
+ Delete = 1;
+ CopyMem (CurrentString + StringCurPos, CurrentString + StringCurPos + 1, sizeof (CHAR16) * (StringLen - StringCurPos));
+ }
+ break;
+
+ case SCAN_UP:
+ //
+ // Prepare to print the previous command
+ //
+ NewPos = (BUFFER_LIST*)GetPreviousNode(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &LinePos->Link);
+ if (IsNull(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &LinePos->Link)) {
+ NewPos = (BUFFER_LIST*)GetPreviousNode(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &LinePos->Link);
+ }
+ break;
+
+ case SCAN_DOWN:
+ //
+ // Prepare to print the next command
+ //
+ NewPos = (BUFFER_LIST*)GetNextNode(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &LinePos->Link);
+ if (NewPos == (BUFFER_LIST*)(&ShellInfoObject.ViewingSettings.CommandHistory)) {
+ NewPos = (BUFFER_LIST*)GetNextNode(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &LinePos->Link);
+ }
+ break;
+
+ case SCAN_LEFT:
+ //
+ // Adjust current cursor position
+ //
+ if (StringCurPos != 0) {
+ --StringCurPos;
+ MoveCursorBackward (TotalColumn, &Column, &Row);
+ }
+ break;
+
+ case SCAN_RIGHT:
+ //
+ // Adjust current cursor position
+ //
+ if (StringCurPos < StringLen) {
+ ++StringCurPos;
+ MoveCursorForward (TotalColumn, TotalRow, &Column, &Row);
+ }
+ break;
+
+ case SCAN_HOME:
+ //
+ // Move current cursor position to the beginning of the command line
+ //
+ Row -= (StringCurPos + StartColumn) / TotalColumn;
+ Column = StartColumn;
+ StringCurPos = 0;
+ break;
+
+ case SCAN_END:
+ //
+ // Move current cursor position to the end of the command line
+ //
+ TailRow = Row + (StringLen - StringCurPos + Column) / TotalColumn;
+ TailColumn = (StringLen - StringCurPos + Column) % TotalColumn;
+ Row = TailRow;
+ Column = TailColumn;
+ StringCurPos = StringLen;
+ break;
+
+ case SCAN_ESC:
+ //
+ // Prepare to clear the current command line
+ //
+ CurrentString[0] = 0;
+ Update = 0;
+ Delete = StringLen;
+ Row -= (StringCurPos + StartColumn) / TotalColumn;
+ Column = StartColumn;
+ OutputLength = 0;
+ break;
+
+ case SCAN_INSERT:
+ //
+ // Toggle the SEnvInsertMode flag
+ //
+ ShellInfoObject.ViewingSettings.InsertMode = (BOOLEAN)!ShellInfoObject.ViewingSettings.InsertMode;
+ break;
+
+ case SCAN_F7:
+ //
+ // Print command history
+ //
+ PrintCommandHistory (TotalColumn, TotalRow, 4);
+ *CurrentString = CHAR_NULL;
+ Done = TRUE;
+ break;
+ }
+ }
+
+ if (Done) {
+ break;
+ }
+
+ //
+ // If we are in auto-complete mode, we are preparing to print
+ // the next file or directory name
+ //
+ if (InTabScrolling) {
+ //
+ // Adjust the column and row to the start of TAB-completion string.
+ //
+ Column = (StartColumn + TabUpdatePos) % TotalColumn;
+ Row -= (StartColumn + StringCurPos) / TotalColumn - (StartColumn + TabUpdatePos) / TotalColumn;
+ OutputLength = StrLen (TabLinePos->FileName);
+ //
+ // if the output string contains blank space, quotation marks L'\"'
+ // should be added to the output.
+ //
+ if (StrStr(TabLinePos->FileName, L" ") != NULL){
+ TabOutputStr[0] = L'\"';
+ CopyMem (TabOutputStr + 1, TabLinePos->FileName, OutputLength * sizeof (CHAR16));
+ TabOutputStr[OutputLength + 1] = L'\"';
+ TabOutputStr[OutputLength + 2] = CHAR_NULL;
+ } else {
+ CopyMem (TabOutputStr, TabLinePos->FileName, OutputLength * sizeof (CHAR16));
+ TabOutputStr[OutputLength] = CHAR_NULL;
+ }
+ OutputLength = StrLen (TabOutputStr) < MaxStr - 1 ? StrLen (TabOutputStr) : MaxStr - 1;
+ CopyMem (CurrentString + TabUpdatePos, TabOutputStr, OutputLength * sizeof (CHAR16));
+ CurrentString[TabUpdatePos + OutputLength] = CHAR_NULL;
+ StringCurPos = TabUpdatePos + OutputLength;
+ Update = TabUpdatePos;
+ if (StringLen > TabUpdatePos + OutputLength) {
+ Delete = StringLen - TabUpdatePos - OutputLength;
+ }
+ }
+
+ //
+ // If we have a new position, we are preparing to print a previous or
+ // next command.
+ //
+ if (NewPos != (BUFFER_LIST*)(&ShellInfoObject.ViewingSettings.CommandHistory)) {
+ Column = StartColumn;
+ Row -= (StringCurPos + StartColumn) / TotalColumn;
+
+ LinePos = NewPos;
+ NewPos = (BUFFER_LIST*)(&ShellInfoObject.ViewingSettings.CommandHistory);
+
+ OutputLength = StrLen (LinePos->Buffer) < MaxStr - 1 ? StrLen (LinePos->Buffer) : MaxStr - 1;
+ CopyMem (CurrentString, LinePos->Buffer, OutputLength * sizeof (CHAR16));
+ CurrentString[OutputLength] = CHAR_NULL;
+
+ StringCurPos = OutputLength;
+
+ //
+ // Draw new input string
+ //
+ Update = 0;
+ if (StringLen > OutputLength) {
+ //
+ // If old string was longer, blank its tail
+ //
+ Delete = StringLen - OutputLength;
+ }
+ }
+ //
+ // If we need to update the output do so now
+ //
+ if (Update != (UINTN) -1) {
+ ShellPrintEx ((INT32)Column, (INT32)Row, L"%s%.*s", CurrentString + Update, Delete, L"");
+ StringLen = StrLen (CurrentString);
+
+ if (Delete != 0) {
+ SetMem (CurrentString + StringLen, Delete * sizeof (CHAR16), CHAR_NULL);
+ }
+
+ if (StringCurPos > StringLen) {
+ StringCurPos = StringLen;
+ }
+
+ Update = (UINTN) -1;
+
+ //
+ // After using print to reflect newly updates, if we're not using
+ // BACKSPACE and DELETE, we need to move the cursor position forward,
+ // so adjust row and column here.
+ //
+ if (Key.UnicodeChar != CHAR_BACKSPACE && !(Key.UnicodeChar == 0 && Key.ScanCode == SCAN_DELETE)) {
+ //
+ // Calulate row and column of the tail of current string
+ //
+ TailRow = Row + (StringLen - StringCurPos + Column + OutputLength) / TotalColumn;
+ TailColumn = (StringLen - StringCurPos + Column + OutputLength) % TotalColumn;
+
+ //
+ // If the tail of string reaches screen end, screen rolls up, so if
+ // Row does not equal TailRow, Row should be decremented
+ //
+ // (if we are recalling commands using UPPER and DOWN key, and if the
+ // old command is too long to fit the screen, TailColumn must be 79.
+ //
+ if (TailColumn == 0 && TailRow >= TotalRow && Row != TailRow) {
+ Row--;
+ }
+ //
+ // Calculate the cursor position after current operation. If cursor
+ // reaches line end, update both row and column, otherwise, only
+ // column will be changed.
+ //
+ if (Column + OutputLength >= TotalColumn) {
+ SkipLength = OutputLength - (TotalColumn - Column);
+
+ Row += SkipLength / TotalColumn + 1;
+ if (Row > TotalRow - 1) {
+ Row = TotalRow - 1;
+ }
+
+ Column = SkipLength % TotalColumn;
+ } else {
+ Column += OutputLength;
+ }
+ }
+
+ Delete = 0;
+ }
+ //
+ // Set the cursor position for this key
+ //
+ gST->ConOut->SetCursorPosition (gST->ConOut, Column, Row);
+ } while (!Done);
+
+ if (CurrentString != NULL && StrLen(CurrentString) > 0) {
+ //
+ // add the line to the history buffer
+ //
+ AddLineToCommandHistory(CurrentString);
+ }
+
+ FreePool (TabStr);
+ FreePool (TabOutputStr);
+ //
+ // Return the data to the caller
+ //
+ *BufferSize = StringLen * sizeof (CHAR16);
+
+ //
+ // if this was used it should be deallocated by now...
+ // prevent memory leaks...
+ //
+ ASSERT(FoundFileList == NULL);
+
+ return EFI_SUCCESS;
+}
+
+//
+// FILE sytle interfaces for StdIn/StdOut/StdErr
+//
+EFI_FILE_PROTOCOL FileInterfaceStdIn = {
+ EFI_FILE_REVISION,
+ FileInterfaceOpenNotFound,
+ FileInterfaceNopGeneric,
+ FileInterfaceNopGeneric,
+ FileInterfaceStdInRead,
+ FileInterfaceStdInWrite,
+ FileInterfaceNopGetPosition,
+ FileInterfaceNopSetPosition,
+ FileInterfaceNopGetInfo,
+ FileInterfaceNopSetInfo,
+ FileInterfaceNopGeneric
+};
+
+EFI_FILE_PROTOCOL FileInterfaceStdOut = {
+ EFI_FILE_REVISION,
+ FileInterfaceOpenNotFound,
+ FileInterfaceNopGeneric,
+ FileInterfaceNopGeneric,
+ FileInterfaceStdOutRead,
+ FileInterfaceStdOutWrite,
+ FileInterfaceNopGetPosition,
+ FileInterfaceNopSetPosition,
+ FileInterfaceNopGetInfo,
+ FileInterfaceNopSetInfo,
+ FileInterfaceNopGeneric
+};
+
+EFI_FILE_PROTOCOL FileInterfaceStdErr = {
+ EFI_FILE_REVISION,
+ FileInterfaceOpenNotFound,
+ FileInterfaceNopGeneric,
+ FileInterfaceNopGeneric,
+ FileInterfaceStdErrRead,
+ FileInterfaceStdErrWrite,
+ FileInterfaceNopGetPosition,
+ FileInterfaceNopSetPosition,
+ FileInterfaceNopGetInfo,
+ FileInterfaceNopSetInfo,
+ FileInterfaceNopGeneric
+};
+
+EFI_FILE_PROTOCOL FileInterfaceNulFile = {
+ EFI_FILE_REVISION,
+ FileInterfaceOpenNotFound,
+ FileInterfaceNopGeneric,
+ FileInterfaceNopGeneric,
+ FileInterfaceNulRead,
+ FileInterfaceNulWrite,
+ FileInterfaceNopGetPosition,
+ FileInterfaceNopSetPosition,
+ FileInterfaceNopGetInfo,
+ FileInterfaceNopSetInfo,
+ FileInterfaceNopGeneric
+};
+
+
+
+
+//
+// This is identical to EFI_FILE_PROTOCOL except for the additional member
+// for the name.
+//
+
+typedef struct {
+ UINT64 Revision;
+ EFI_FILE_OPEN Open;
+ EFI_FILE_CLOSE Close;
+ EFI_FILE_DELETE Delete;
+ EFI_FILE_READ Read;
+ EFI_FILE_WRITE Write;
+ EFI_FILE_GET_POSITION GetPosition;
+ EFI_FILE_SET_POSITION SetPosition;
+ EFI_FILE_GET_INFO GetInfo;
+ EFI_FILE_SET_INFO SetInfo;
+ EFI_FILE_FLUSH Flush;
+ CHAR16 Name[1];
+} EFI_FILE_PROTOCOL_ENVIRONMENT;
+//ANSI compliance helper to get size of the struct.
+#define SIZE_OF_EFI_FILE_PROTOCOL_ENVIRONMENT EFI_FIELD_OFFSET (EFI_FILE_PROTOCOL_ENVIRONMENT, Name)
+
+/**
+ File style interface for Environment Variable (Close).
+
+ Frees the memory for this object.
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+
+ @retval EFI_SUCCESS
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceEnvClose(
+ IN EFI_FILE_PROTOCOL *This
+ )
+{
+ FreePool((EFI_FILE_PROTOCOL_ENVIRONMENT*)This);
+ return (EFI_SUCCESS);
+}
+
+/**
+ File style interface for Environment Variable (Delete).
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+
+ @retval The return value from FileInterfaceEnvClose().
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceEnvDelete(
+ IN EFI_FILE_PROTOCOL *This
+ )
+{
+ SHELL_DELETE_ENVIRONMENT_VARIABLE(((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name);
+ return (FileInterfaceEnvClose(This));
+}
+
+/**
+ File style interface for Environment Variable (Read).
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[in,out] BufferSize Size in bytes of Buffer.
+ @param[out] Buffer The pointer to the buffer to fill.
+
+ @retval EFI_SUCCESS The data was read.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceEnvRead(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ return (SHELL_GET_ENVIRONMENT_VARIABLE(
+ ((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name,
+ BufferSize,
+ Buffer));
+}
+
+/**
+ File style interface for Volatile Environment Variable (Write).
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[in,out] BufferSize Size in bytes of Buffer.
+ @param[in] Buffer The pointer to the buffer to write.
+
+ @retval EFI_SUCCESS The data was read.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceEnvVolWrite(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ )
+{
+ VOID* NewBuffer;
+ UINTN NewSize;
+ EFI_STATUS Status;
+
+ NewBuffer = NULL;
+ NewSize = 0;
+
+ Status = SHELL_GET_ENVIRONMENT_VARIABLE(((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name, &NewSize, NewBuffer);
+ if (Status == EFI_BUFFER_TOO_SMALL){
+ NewBuffer = AllocateZeroPool(NewSize + *BufferSize + sizeof(CHAR16));
+ Status = SHELL_GET_ENVIRONMENT_VARIABLE(((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name, &NewSize, NewBuffer);
+ }
+ if (!EFI_ERROR(Status) && NewBuffer != NULL) {
+ while (((CHAR16*)NewBuffer)[NewSize/2] == CHAR_NULL) {
+ //
+ // We want to overwrite the CHAR_NULL
+ //
+ NewSize -= 2;
+ }
+ CopyMem((UINT8*)NewBuffer + NewSize + 2, Buffer, *BufferSize);
+ Status = SHELL_SET_ENVIRONMENT_VARIABLE_V(((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name, StrSize(NewBuffer), NewBuffer);
+ FreePool(NewBuffer);
+ return (Status);
+ } else {
+ SHELL_FREE_NON_NULL(NewBuffer);
+ return (SHELL_SET_ENVIRONMENT_VARIABLE_V(((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name, *BufferSize, Buffer));
+ }
+}
+
+
+/**
+ File style interface for Non Volatile Environment Variable (Write).
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[in,out] BufferSize Size in bytes of Buffer.
+ @param[in] Buffer The pointer to the buffer to write.
+
+ @retval EFI_SUCCESS The data was read.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceEnvNonVolWrite(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ )
+{
+ VOID* NewBuffer;
+ UINTN NewSize;
+ EFI_STATUS Status;
+
+ NewBuffer = NULL;
+ NewSize = 0;
+
+ Status = SHELL_GET_ENVIRONMENT_VARIABLE(((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name, &NewSize, NewBuffer);
+ if (Status == EFI_BUFFER_TOO_SMALL){
+ NewBuffer = AllocateZeroPool(NewSize + *BufferSize);
+ Status = SHELL_GET_ENVIRONMENT_VARIABLE(((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name, &NewSize, NewBuffer);
+ }
+ if (!EFI_ERROR(Status)) {
+ CopyMem((UINT8*)NewBuffer + NewSize, Buffer, *BufferSize);
+ return (SHELL_SET_ENVIRONMENT_VARIABLE_NV(
+ ((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name,
+ NewSize + *BufferSize,
+ NewBuffer));
+ } else {
+ return (SHELL_SET_ENVIRONMENT_VARIABLE_NV(
+ ((EFI_FILE_PROTOCOL_ENVIRONMENT*)This)->Name,
+ *BufferSize,
+ Buffer));
+ }
+}
+
+/**
+ Creates a EFI_FILE_PROTOCOL (almost) object for using to access
+ environment variables through file operations.
+
+ @param EnvName The name of the Environment Variable to be operated on.
+
+ @retval NULL Memory could not be allocated.
+ @return other a pointer to an EFI_FILE_PROTOCOL structure
+**/
+EFI_FILE_PROTOCOL*
+EFIAPI
+CreateFileInterfaceEnv(
+ IN CONST CHAR16 *EnvName
+ )
+{
+ EFI_FILE_PROTOCOL_ENVIRONMENT *EnvFileInterface;
+
+ if (EnvName == NULL) {
+ return (NULL);
+ }
+
+ //
+ // Get some memory
+ //
+ EnvFileInterface = AllocateZeroPool(sizeof(EFI_FILE_PROTOCOL_ENVIRONMENT)+StrSize(EnvName));
+ if (EnvFileInterface == NULL){
+ return (NULL);
+ }
+
+ //
+ // Assign the generic members
+ //
+ EnvFileInterface->Revision = EFI_FILE_REVISION;
+ EnvFileInterface->Open = FileInterfaceOpenNotFound;
+ EnvFileInterface->Close = FileInterfaceEnvClose;
+ EnvFileInterface->GetPosition = FileInterfaceNopGetPosition;
+ EnvFileInterface->SetPosition = FileInterfaceNopSetPosition;
+ EnvFileInterface->GetInfo = FileInterfaceNopGetInfo;
+ EnvFileInterface->SetInfo = FileInterfaceNopSetInfo;
+ EnvFileInterface->Flush = FileInterfaceNopGeneric;
+ EnvFileInterface->Delete = FileInterfaceEnvDelete;
+ EnvFileInterface->Read = FileInterfaceEnvRead;
+
+ StrCpy(EnvFileInterface->Name, EnvName);
+
+ //
+ // Assign the different members for Volatile and Non-Volatile variables
+ //
+ if (IsVolatileEnv(EnvName)) {
+ EnvFileInterface->Write = FileInterfaceEnvVolWrite;
+ } else {
+ EnvFileInterface->Write = FileInterfaceEnvNonVolWrite;
+ }
+ return ((EFI_FILE_PROTOCOL *)EnvFileInterface);
+}
+
+/**
+ Move the cursor position one character backward.
+
+ @param[in] LineLength Length of a line. Get it by calling QueryMode
+ @param[in,out] Column Current column of the cursor position
+ @param[in,out] Row Current row of the cursor position
+**/
+VOID
+EFIAPI
+MoveCursorBackward (
+ IN UINTN LineLength,
+ IN OUT UINTN *Column,
+ IN OUT UINTN *Row
+ )
+{
+ //
+ // If current column is 0, move to the last column of the previous line,
+ // otherwise, just decrement column.
+ //
+ if (*Column == 0) {
+ *Column = LineLength - 1;
+ if (*Row > 0) {
+ (*Row)--;
+ }
+ return;
+ }
+ (*Column)--;
+}
+
+/**
+ Move the cursor position one character forward.
+
+ @param[in] LineLength Length of a line.
+ @param[in] TotalRow Total row of a screen
+ @param[in,out] Column Current column of the cursor position
+ @param[in,out] Row Current row of the cursor position
+**/
+VOID
+EFIAPI
+MoveCursorForward (
+ IN UINTN LineLength,
+ IN UINTN TotalRow,
+ IN OUT UINTN *Column,
+ IN OUT UINTN *Row
+ )
+{
+ //
+ // Increment Column.
+ // If this puts column past the end of the line, move to first column
+ // of the next row.
+ //
+ (*Column)++;
+ if (*Column >= LineLength) {
+ (*Column) = 0;
+ if ((*Row) < TotalRow - 1) {
+ (*Row)++;
+ }
+ }
+}
+
+/**
+ Prints out each previously typed command in the command list history log.
+
+ When each screen is full it will pause for a key before continuing.
+
+ @param[in] TotalCols How many columns are on the screen
+ @param[in] TotalRows How many rows are on the screen
+ @param[in] StartColumn which column to start at
+**/
+VOID
+EFIAPI
+PrintCommandHistory (
+ IN CONST UINTN TotalCols,
+ IN CONST UINTN TotalRows,
+ IN CONST UINTN StartColumn
+ )
+{
+ BUFFER_LIST *Node;
+ UINTN Index;
+ UINTN LineNumber;
+ UINTN LineCount;
+
+ ShellPrintEx (-1, -1, L"\n");
+ Index = 0;
+ LineNumber = 0;
+ //
+ // go through history list...
+ //
+ for ( Node = (BUFFER_LIST*)GetFirstNode(&ShellInfoObject.ViewingSettings.CommandHistory.Link)
+ ; !IsNull(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &Node->Link)
+ ; Node = (BUFFER_LIST*)GetNextNode(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &Node->Link)
+ ){
+ Index++;
+ LineCount = ((StrLen (Node->Buffer) + StartColumn + 1) / TotalCols) + 1;
+
+ if (LineNumber + LineCount >= TotalRows) {
+ ShellPromptForResponseHii(
+ ShellPromptResponseTypeEnterContinue,
+ STRING_TOKEN (STR_SHELL_ENTER_TO_CONT),
+ ShellInfoObject.HiiHandle,
+ NULL
+ );
+ LineNumber = 0;
+ }
+ ShellPrintEx (-1, -1, L"%2d. %s\n", Index, Node->Buffer);
+ LineNumber += LineCount;
+ }
+}
+
+
+
+
+
+
+//
+// This is identical to EFI_FILE_PROTOCOL except for the additional members
+// for the buffer, size, and position.
+//
+
+typedef struct {
+ UINT64 Revision;
+ EFI_FILE_OPEN Open;
+ EFI_FILE_CLOSE Close;
+ EFI_FILE_DELETE Delete;
+ EFI_FILE_READ Read;
+ EFI_FILE_WRITE Write;
+ EFI_FILE_GET_POSITION GetPosition;
+ EFI_FILE_SET_POSITION SetPosition;
+ EFI_FILE_GET_INFO GetInfo;
+ EFI_FILE_SET_INFO SetInfo;
+ EFI_FILE_FLUSH Flush;
+ VOID *Buffer;
+ UINT64 Position;
+ UINT64 BufferSize;
+ BOOLEAN Unicode;
+} EFI_FILE_PROTOCOL_MEM;
+
+/**
+ File style interface for Mem (SetPosition).
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[out] Position The position to set.
+
+ @retval EFI_SUCCESS The position was successfully changed.
+ @retval EFI_INVALID_PARAMETER The Position was invalid.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceMemSetPosition(
+ IN EFI_FILE_PROTOCOL *This,
+ OUT UINT64 Position
+ )
+{
+ if (Position <= ((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize) {
+ ((EFI_FILE_PROTOCOL_MEM*)This)->Position = Position;
+ return (EFI_SUCCESS);
+ } else {
+ return (EFI_INVALID_PARAMETER);
+ }
+}
+
+/**
+ File style interface for Mem (GetPosition).
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[out] Position The pointer to the position.
+
+ @retval EFI_SUCCESS The position was retrieved.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceMemGetPosition(
+ IN EFI_FILE_PROTOCOL *This,
+ OUT UINT64 *Position
+ )
+{
+ *Position = ((EFI_FILE_PROTOCOL_MEM*)This)->Position;
+ return (EFI_SUCCESS);
+}
+
+/**
+ File style interface for Mem (Write).
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[in,out] BufferSize Size in bytes of Buffer.
+ @param[in] Buffer The pointer to the buffer to write.
+
+ @retval EFI_SUCCESS The data was written.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceMemWrite(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ )
+{
+ CHAR8 *AsciiBuffer;
+ if (((EFI_FILE_PROTOCOL_MEM*)This)->Unicode) {
+ //
+ // Unicode
+ //
+ if ((UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->Position + (*BufferSize)) > (UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize)) {
+ ((EFI_FILE_PROTOCOL_MEM*)This)->Buffer = ReallocatePool((UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize), (UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize) + (*BufferSize) + 10, ((EFI_FILE_PROTOCOL_MEM*)This)->Buffer);
+ ((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize += (*BufferSize) + 10;
+ }
+ CopyMem(((UINT8*)((EFI_FILE_PROTOCOL_MEM*)This)->Buffer) + ((EFI_FILE_PROTOCOL_MEM*)This)->Position, Buffer, *BufferSize);
+ ((EFI_FILE_PROTOCOL_MEM*)This)->Position += (*BufferSize);
+ return (EFI_SUCCESS);
+ } else {
+ //
+ // Ascii
+ //
+ AsciiBuffer = AllocatePool(*BufferSize);
+ AsciiSPrint(AsciiBuffer, *BufferSize, "%S", Buffer);
+ if ((UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->Position + AsciiStrSize(AsciiBuffer)) > (UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize)) {
+ ((EFI_FILE_PROTOCOL_MEM*)This)->Buffer = ReallocatePool((UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize), (UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize) + AsciiStrSize(AsciiBuffer) + 10, ((EFI_FILE_PROTOCOL_MEM*)This)->Buffer);
+ ((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize += AsciiStrSize(AsciiBuffer) + 10;
+ }
+ CopyMem(((UINT8*)((EFI_FILE_PROTOCOL_MEM*)This)->Buffer) + ((EFI_FILE_PROTOCOL_MEM*)This)->Position, AsciiBuffer, AsciiStrSize(AsciiBuffer));
+ ((EFI_FILE_PROTOCOL_MEM*)This)->Position += AsciiStrSize(AsciiBuffer);
+ FreePool(AsciiBuffer);
+ return (EFI_SUCCESS);
+ }
+}
+
+/**
+ File style interface for Mem (Read).
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[in,out] BufferSize Size in bytes of Buffer.
+ @param[in] Buffer The pointer to the buffer to fill.
+
+ @retval EFI_SUCCESS The data was read.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceMemRead(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ )
+{
+ if (*BufferSize > (UINTN)((((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize) - (UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->Position))) {
+ (*BufferSize) = (UINTN)((((EFI_FILE_PROTOCOL_MEM*)This)->BufferSize) - (UINTN)(((EFI_FILE_PROTOCOL_MEM*)This)->Position));
+ }
+ CopyMem(Buffer, ((UINT8*)((EFI_FILE_PROTOCOL_MEM*)This)->Buffer) + ((EFI_FILE_PROTOCOL_MEM*)This)->Position, (*BufferSize));
+ ((EFI_FILE_PROTOCOL_MEM*)This)->Position = ((EFI_FILE_PROTOCOL_MEM*)This)->Position + (*BufferSize);
+ return (EFI_SUCCESS);
+}
+
+/**
+ File style interface for Mem (Close).
+
+ Frees all memory associated with this object.
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+
+ @retval EFI_SUCCESS The 'file' was closed.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceMemClose(
+ IN EFI_FILE_PROTOCOL *This
+ )
+{
+ SHELL_FREE_NON_NULL(((EFI_FILE_PROTOCOL_MEM*)This)->Buffer);
+ SHELL_FREE_NON_NULL((EFI_FILE_PROTOCOL_MEM*)This);
+ return (EFI_SUCCESS);
+}
+
+/**
+ Creates a EFI_FILE_PROTOCOL (almost) object for using to access
+ a file entirely in memory through file operations.
+
+ @param[in] Unicode Boolean value with TRUE for Unicode and FALSE for Ascii.
+
+ @retval NULL Memory could not be allocated.
+ @return other A pointer to an EFI_FILE_PROTOCOL structure.
+**/
+EFI_FILE_PROTOCOL*
+EFIAPI
+CreateFileInterfaceMem(
+ IN CONST BOOLEAN Unicode
+ )
+{
+ EFI_FILE_PROTOCOL_MEM *FileInterface;
+
+ //
+ // Get some memory
+ //
+ FileInterface = AllocateZeroPool(sizeof(EFI_FILE_PROTOCOL_MEM));
+ if (FileInterface == NULL){
+ return (NULL);
+ }
+
+ //
+ // Assign the generic members
+ //
+ FileInterface->Revision = EFI_FILE_REVISION;
+ FileInterface->Open = FileInterfaceOpenNotFound;
+ FileInterface->Close = FileInterfaceMemClose;
+ FileInterface->GetPosition = FileInterfaceMemGetPosition;
+ FileInterface->SetPosition = FileInterfaceMemSetPosition;
+ FileInterface->GetInfo = FileInterfaceNopGetInfo;
+ FileInterface->SetInfo = FileInterfaceNopSetInfo;
+ FileInterface->Flush = FileInterfaceNopGeneric;
+ FileInterface->Delete = FileInterfaceNopGeneric;
+ FileInterface->Read = FileInterfaceMemRead;
+ FileInterface->Write = FileInterfaceMemWrite;
+ FileInterface->Unicode = Unicode;
+
+ ASSERT(FileInterface->Buffer == NULL);
+ ASSERT(FileInterface->BufferSize == 0);
+ ASSERT(FileInterface->Position == 0);
+
+ return ((EFI_FILE_PROTOCOL *)FileInterface);
+}
+
+typedef struct {
+ UINT64 Revision;
+ EFI_FILE_OPEN Open;
+ EFI_FILE_CLOSE Close;
+ EFI_FILE_DELETE Delete;
+ EFI_FILE_READ Read;
+ EFI_FILE_WRITE Write;
+ EFI_FILE_GET_POSITION GetPosition;
+ EFI_FILE_SET_POSITION SetPosition;
+ EFI_FILE_GET_INFO GetInfo;
+ EFI_FILE_SET_INFO SetInfo;
+ EFI_FILE_FLUSH Flush;
+ BOOLEAN Unicode;
+ EFI_FILE_PROTOCOL *Orig;
+} EFI_FILE_PROTOCOL_FILE;
+
+/**
+ File style interface for File (Close).
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+
+ @retval EFI_SUCCESS The file was closed.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceFileClose(
+ IN EFI_FILE_PROTOCOL *This
+ )
+{
+ ((EFI_FILE_PROTOCOL_FILE*)This)->Orig->Close(((EFI_FILE_PROTOCOL_FILE*)This)->Orig);
+ FreePool(This);
+ return (EFI_SUCCESS);
+}
+
+/**
+ File style interface for File (Write).
+
+ If the file was opened with ASCII mode the data will be processed through
+ AsciiSPrint before writing.
+
+ @param[in] This The pointer to the EFI_FILE_PROTOCOL object.
+ @param[in] BufferSize Size in bytes of Buffer.
+ @param[in] Buffer The pointer to the buffer to write.
+
+ @retval EFI_SUCCESS The data was written.
+**/
+EFI_STATUS
+EFIAPI
+FileInterfaceFileWrite(
+ IN EFI_FILE_PROTOCOL *This,
+ IN OUT UINTN *BufferSize,
+ IN VOID *Buffer
+ )
+{
+ CHAR8 *AsciiBuffer;
+ UINTN Size;
+ EFI_STATUS Status;
+ if (((EFI_FILE_PROTOCOL_FILE*)This)->Unicode) {
+ //
+ // Unicode
+ //
+ return (((EFI_FILE_PROTOCOL_FILE*)This)->Orig->Write(((EFI_FILE_PROTOCOL_FILE*)This)->Orig, BufferSize, Buffer));
+ } else {
+ //
+ // Ascii
+ //
+ AsciiBuffer = AllocatePool(*BufferSize);
+ AsciiSPrint(AsciiBuffer, *BufferSize, "%S", Buffer);
+ Size = AsciiStrSize(AsciiBuffer) - 1; // (we dont need the null terminator)
+ Status = (((EFI_FILE_PROTOCOL_FILE*)This)->Orig->Write(((EFI_FILE_PROTOCOL_FILE*)This)->Orig, &Size, AsciiBuffer));
+ FreePool(AsciiBuffer);
+ return (Status);
+ }
+}
+
+/**
+ Create a file interface with unicode information.
+
+ This will create a new EFI_FILE_PROTOCOL identical to the Templace
+ except that the new one has Unicode and Ascii knowledge.
+
+ @param[in] Template A pointer to the EFI_FILE_PROTOCOL object.
+ @param[in] Unicode TRUE for UCS-2, FALSE for ASCII.
+
+ @return a new EFI_FILE_PROTOCOL object to be used instead of the template.
+**/
+EFI_FILE_PROTOCOL*
+CreateFileInterfaceFile(
+ IN CONST EFI_FILE_PROTOCOL *Template,
+ IN CONST BOOLEAN Unicode
+ )
+{
+ EFI_FILE_PROTOCOL_FILE *NewOne;
+
+ NewOne = AllocatePool(sizeof(EFI_FILE_PROTOCOL_FILE));
+ CopyMem(NewOne, Template, sizeof(EFI_FILE_PROTOCOL_FILE));
+ NewOne->Orig = (EFI_FILE_PROTOCOL *)Template;
+ NewOne->Unicode = Unicode;
+ NewOne->Close = FileInterfaceFileClose;
+ NewOne->Write = FileInterfaceFileWrite;
+
+ return ((EFI_FILE_PROTOCOL *)NewOne);
+}
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