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755 lines
23 KiB
755 lines
23 KiB
/** @file
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Provides interface to shell MAN file parser.
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Copyright (c) 2009 - 2019, Intel Corporation. All rights reserved.<BR>
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Copyright 2015 Dell Inc.
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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 "Shell.h"
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#define SHELL_MAN_HII_GUID \
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{ \
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0xf62ccd0c, 0x2449, 0x453c, { 0x8a, 0xcb, 0x8c, 0xc5, 0x7c, 0xf0, 0x2a, 0x97 } \
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}
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EFI_HII_HANDLE mShellManHiiHandle = NULL;
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EFI_HANDLE mShellManDriverHandle = NULL;
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SHELL_MAN_HII_VENDOR_DEVICE_PATH mShellManHiiDevicePath = {
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{
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{
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HARDWARE_DEVICE_PATH,
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HW_VENDOR_DP,
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{
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(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
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(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
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}
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},
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SHELL_MAN_HII_GUID
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},
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{
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END_DEVICE_PATH_TYPE,
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END_ENTIRE_DEVICE_PATH_SUBTYPE,
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{
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(UINT8) (END_DEVICE_PATH_LENGTH),
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(UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)
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}
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}
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};
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/**
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Verifies that the filename has .EFI on the end.
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allocates a new buffer and copies the name (appending .EFI if necessary).
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Caller to free the buffer.
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@param[in] NameString original name string
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@return the new filename with .efi as the extension.
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**/
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CHAR16 *
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GetExecuatableFileName (
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IN CONST CHAR16 *NameString
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)
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{
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CHAR16 *Buffer;
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CHAR16 *SuffixStr;
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if (NameString == NULL) {
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return (NULL);
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}
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//
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// Fix the file name
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//
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if (StrnCmp(NameString+StrLen(NameString)-StrLen(L".efi"), L".efi", StrLen(L".efi"))==0) {
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Buffer = AllocateCopyPool(StrSize(NameString), NameString);
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} else if (StrnCmp(NameString+StrLen(NameString)-StrLen(L".man"), L".man", StrLen(L".man"))==0) {
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Buffer = AllocateCopyPool(StrSize(NameString), NameString);
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if (Buffer != NULL) {
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SuffixStr = Buffer+StrLen(Buffer)-StrLen(L".man");
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StrnCpyS (SuffixStr, StrSize(L".man")/sizeof(CHAR16), L".efi", StrLen(L".efi"));
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}
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} else {
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Buffer = AllocateZeroPool(StrSize(NameString) + StrLen(L".efi")*sizeof(CHAR16));
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if (Buffer != NULL) {
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StrnCpyS( Buffer,
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(StrSize(NameString) + StrLen(L".efi")*sizeof(CHAR16))/sizeof(CHAR16),
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NameString,
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StrLen(NameString)
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);
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StrnCatS( Buffer,
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(StrSize(NameString) + StrLen(L".efi")*sizeof(CHAR16))/sizeof(CHAR16),
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L".efi",
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StrLen(L".efi")
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);
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}
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}
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return (Buffer);
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}
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/**
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Verifies that the filename has .MAN on the end.
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allocates a new buffer and copies the name (appending .MAN if necessary)
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ASSERT if ManFileName is NULL
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@param[in] ManFileName original filename
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@return the new filename with .man as the extension.
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**/
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CHAR16 *
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GetManFileName(
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IN CONST CHAR16 *ManFileName
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)
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{
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CHAR16 *Buffer;
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if (ManFileName == NULL) {
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return (NULL);
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}
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//
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// Fix the file name
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//
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if (StrnCmp(ManFileName+StrLen(ManFileName)-4, L".man", 4)==0) {
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Buffer = AllocateCopyPool(StrSize(ManFileName), ManFileName);
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} else {
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Buffer = AllocateZeroPool(StrSize(ManFileName) + 4*sizeof(CHAR16));
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if (Buffer != NULL) {
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StrnCpyS( Buffer,
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(StrSize(ManFileName) + 4*sizeof(CHAR16))/sizeof(CHAR16),
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ManFileName,
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StrLen(ManFileName)
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);
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StrnCatS( Buffer,
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(StrSize(ManFileName) + 4*sizeof(CHAR16))/sizeof(CHAR16),
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L".man",
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4
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);
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}
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}
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return (Buffer);
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}
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/**
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Search the path environment variable for possible locations and test for
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which one contains a man file with the name specified. If a valid file is found
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stop searching and return the (opened) SHELL_FILE_HANDLE for that file.
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@param[in] FileName Name of the file to find and open.
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@param[out] Handle Pointer to the handle of the found file. The
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value of this is undefined for return values
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except EFI_SUCCESS.
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@retval EFI_SUCCESS The file was found. Handle is a valid SHELL_FILE_HANDLE
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@retval EFI_INVALID_PARAMETER A parameter had an invalid value.
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@retval EFI_NOT_FOUND The file was not found.
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**/
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EFI_STATUS
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SearchPathForFile(
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IN CONST CHAR16 *FileName,
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OUT SHELL_FILE_HANDLE *Handle
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)
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{
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CHAR16 *FullFileName;
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EFI_STATUS Status;
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if ( FileName == NULL
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|| Handle == NULL
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|| StrLen(FileName) == 0
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){
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return (EFI_INVALID_PARAMETER);
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}
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FullFileName = ShellFindFilePath(FileName);
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if (FullFileName == NULL) {
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return (EFI_NOT_FOUND);
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}
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//
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// now open that file
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//
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Status = EfiShellOpenFileByName(FullFileName, Handle, EFI_FILE_MODE_READ);
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FreePool(FullFileName);
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return (Status);
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}
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/**
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parses through the MAN file specified by SHELL_FILE_HANDLE and returns the
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detailed help for any sub section specified in the comma seperated list of
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sections provided. If the end of the file or a .TH section is found then
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return.
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Upon a sucessful return the caller is responsible to free the memory in *HelpText
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@param[in] Handle FileHandle to read from
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@param[in] Sections name of command's sub sections to find
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@param[out] HelpText pointer to pointer to string where text goes.
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@param[out] HelpSize pointer to size of allocated HelpText (may be updated)
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@param[in] Ascii TRUE if the file is ASCII, FALSE otherwise.
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@retval EFI_OUT_OF_RESOURCES a memory allocation failed.
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@retval EFI_SUCCESS the section was found and its description sotred in
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an alloceted buffer.
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**/
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EFI_STATUS
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ManFileFindSections(
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IN SHELL_FILE_HANDLE Handle,
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IN CONST CHAR16 *Sections,
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OUT CHAR16 **HelpText,
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OUT UINTN *HelpSize,
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IN BOOLEAN Ascii
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)
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{
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EFI_STATUS Status;
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CHAR16 *ReadLine;
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UINTN Size;
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BOOLEAN CurrentlyReading;
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CHAR16 *SectionName;
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UINTN SectionLen;
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BOOLEAN Found;
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if ( Handle == NULL
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|| HelpText == NULL
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|| HelpSize == NULL
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){
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return (EFI_INVALID_PARAMETER);
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}
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Status = EFI_SUCCESS;
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CurrentlyReading = FALSE;
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Size = 1024;
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Found = FALSE;
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ReadLine = AllocateZeroPool(Size);
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if (ReadLine == NULL) {
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return (EFI_OUT_OF_RESOURCES);
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}
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for (;!ShellFileHandleEof(Handle);Size = 1024) {
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Status = ShellFileHandleReadLine(Handle, ReadLine, &Size, TRUE, &Ascii);
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if (ReadLine[0] == L'#') {
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//
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// Skip comment lines
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//
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continue;
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}
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//
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// ignore too small of buffer...
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//
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if (Status == EFI_BUFFER_TOO_SMALL) {
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Status = EFI_SUCCESS;
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}
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if (EFI_ERROR(Status)) {
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break;
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} else if (StrnCmp(ReadLine, L".TH", 3) == 0) {
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//
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// we hit the end of this commands section so stop.
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//
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break;
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} else if (StrnCmp(ReadLine, L".SH", 3) == 0) {
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if (Sections == NULL) {
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CurrentlyReading = TRUE;
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continue;
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}
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//
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// we found a section
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//
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if (CurrentlyReading) {
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CurrentlyReading = FALSE;
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}
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//
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// is this a section we want to read in?
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//
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for ( SectionName = ReadLine + 3
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; *SectionName == L' '
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; SectionName++);
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SectionLen = StrLen(SectionName);
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SectionName = StrStr(Sections, SectionName);
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if (SectionName == NULL) {
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continue;
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}
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if (*(SectionName + SectionLen) == CHAR_NULL || *(SectionName + SectionLen) == L',') {
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CurrentlyReading = TRUE;
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}
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} else if (CurrentlyReading) {
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Found = TRUE;
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//
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// copy and save the current line.
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//
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ASSERT((*HelpText == NULL && *HelpSize == 0) || (*HelpText != NULL));
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StrnCatGrow (HelpText, HelpSize, ReadLine, 0);
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StrnCatGrow (HelpText, HelpSize, L"\r\n", 0);
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}
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}
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FreePool(ReadLine);
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if (!Found && !EFI_ERROR(Status)) {
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return (EFI_NOT_FOUND);
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}
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return (Status);
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}
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/**
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Parses a line from a MAN file to see if it is the Title Header. If it is, then
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if the "Brief Description" is desired, allocate a buffer for it and return a
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copy. Upon a sucessful return the caller is responsible to free the memory in
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*BriefDesc
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Uses a simple state machine that allows "unlimited" whitespace before and after the
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".TH", compares Command and the MAN file commnd name without respect to case, and
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allows "unlimited" whitespace and '0' and '1' characters before the Short Description.
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The PCRE regex describing this functionality is: ^\s*\.TH\s+(\S)\s[\s01]*(.*)$
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where group 1 is the Command Name and group 2 is the Short Description.
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@param[in] Command name of command whose MAN file we think Line came from
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@param[in] Line Pointer to a line from the MAN file
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@param[out] BriefDesc pointer to pointer to string where description goes.
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@param[out] BriefSize pointer to size of allocated BriefDesc
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@param[out] Found TRUE if the Title Header was found and it belongs to Command
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@retval TRUE Line contained the Title Header
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@retval FALSE Line did not contain the Title Header
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**/
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BOOLEAN
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IsTitleHeader(
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IN CONST CHAR16 *Command,
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IN CHAR16 *Line,
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OUT CHAR16 **BriefDesc OPTIONAL,
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OUT UINTN *BriefSize OPTIONAL,
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OUT BOOLEAN *Found
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)
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{
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// The states of a simple state machine used to recognize a title header line
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// and to extract the Short Description, if desired.
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typedef enum {
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LookForThMacro, LookForCommandName, CompareCommands, GetBriefDescription, Final
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} STATEVALUES;
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STATEVALUES State;
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UINTN CommandIndex; // Indexes Command as we compare its chars to the MAN file.
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BOOLEAN ReturnValue; // TRUE if this the Title Header line of *some* MAN file.
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BOOLEAN ReturnFound; // TRUE if this the Title Header line of *the desired* MAN file.
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ReturnValue = FALSE;
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ReturnFound = FALSE;
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CommandIndex = 0;
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State = LookForThMacro;
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do {
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if (*Line == L'\0') {
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break;
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}
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switch (State) {
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// Handle "^\s*.TH\s"
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// Go to state LookForCommandName if the title header macro is present; otherwise,
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// eat white space. If we see something other than white space, this is not a
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// title header line.
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case LookForThMacro:
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if (StrnCmp (L".TH ", Line, 4) == 0 || StrnCmp (L".TH\t", Line, 4) == 0) {
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Line += 4;
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State = LookForCommandName;
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}
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else if (*Line == L' ' || *Line == L'\t') {
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Line++;
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}
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else {
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State = Final;
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}
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break;
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// Handle "\s*"
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// Eat any "extra" whitespace after the title header macro (we have already seen
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// at least one white space character). Go to state CompareCommands when a
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// non-white space is seen.
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case LookForCommandName:
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if (*Line == L' ' || *Line == L'\t') {
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Line++;
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}
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else {
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ReturnValue = TRUE; // This is *some* command's title header line.
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State = CompareCommands;
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// Do not increment Line; it points to the first character of the command
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// name on the title header line.
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}
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break;
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// Handle "(\S)\s"
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// Compare Command to the title header command name, ignoring case. When we
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// reach the end of the command (i.e. we see white space), the next state
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// depends on whether the caller wants a copy of the Brief Description.
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case CompareCommands:
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if (*Line == L' ' || *Line == L'\t') {
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ReturnFound = TRUE; // This is the desired command's title header line.
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State = (BriefDesc == NULL) ? Final : GetBriefDescription;
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}
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else if (CharToUpper (*Line) != CharToUpper (*(Command + CommandIndex++))) {
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State = Final;
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}
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Line++;
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break;
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// Handle "[\s01]*(.*)$"
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// Skip whitespace, '0', and '1' characters, if any, prior to the brief description.
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// Return the description to the caller.
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case GetBriefDescription:
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if (*Line != L' ' && *Line != L'\t' && *Line != L'0' && *Line != L'1') {
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*BriefSize = StrSize(Line);
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*BriefDesc = AllocateZeroPool(*BriefSize);
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if (*BriefDesc != NULL) {
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StrCpyS(*BriefDesc, (*BriefSize)/sizeof(CHAR16), Line);
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}
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State = Final;
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}
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Line++;
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break;
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default:
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break;
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}
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} while (State < Final);
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*Found = ReturnFound;
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return ReturnValue;
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}
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/**
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parses through the MAN file specified by SHELL_FILE_HANDLE and returns the
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"Brief Description" for the .TH section as specified by Command. If the
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command section is not found return EFI_NOT_FOUND.
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Upon a sucessful return the caller is responsible to free the memory in *BriefDesc
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@param[in] Handle FileHandle to read from
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@param[in] Command name of command's section to find as entered on the
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command line (may be a relative or absolute path or
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be in any case: upper, lower, or mixed in numerous ways!).
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@param[out] BriefDesc pointer to pointer to string where description goes.
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@param[out] BriefSize pointer to size of allocated BriefDesc
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@param[in, out] Ascii TRUE if the file is ASCII, FALSE otherwise, will be
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set if the file handle is at the 0 position.
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@retval EFI_OUT_OF_RESOURCES a memory allocation failed.
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@retval EFI_SUCCESS the section was found and its description stored in
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an allocated buffer if requested.
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**/
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EFI_STATUS
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ManFileFindTitleSection(
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IN SHELL_FILE_HANDLE Handle,
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IN CONST CHAR16 *Command,
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OUT CHAR16 **BriefDesc OPTIONAL,
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OUT UINTN *BriefSize OPTIONAL,
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IN OUT BOOLEAN *Ascii
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)
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{
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EFI_STATUS Status;
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CHAR16 *ReadLine;
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UINTN Size;
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BOOLEAN Found;
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UINTN Start;
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if ( Handle == NULL
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|| Command == NULL
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|| (BriefDesc != NULL && BriefSize == NULL)
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){
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return (EFI_INVALID_PARAMETER);
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}
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Status = EFI_SUCCESS;
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Size = 1024;
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Found = FALSE;
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ReadLine = AllocateZeroPool(Size);
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if (ReadLine == NULL) {
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return (EFI_OUT_OF_RESOURCES);
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}
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//
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// Do not pass any leading path information that may be present to IsTitleHeader().
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//
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Start = StrLen(Command);
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while ((Start != 0)
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&& (*(Command + Start - 1) != L'\\')
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&& (*(Command + Start - 1) != L'/')
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&& (*(Command + Start - 1) != L':')) {
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--Start;
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}
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for (;!ShellFileHandleEof(Handle);Size = 1024) {
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Status = ShellFileHandleReadLine(Handle, ReadLine, &Size, TRUE, Ascii);
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//
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|
// ignore too small of buffer...
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//
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if (EFI_ERROR(Status) && Status != EFI_BUFFER_TOO_SMALL) {
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break;
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}
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Status = EFI_NOT_FOUND;
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if (IsTitleHeader (Command+Start, ReadLine, BriefDesc, BriefSize, &Found)) {
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Status = Found ? EFI_SUCCESS : EFI_NOT_FOUND;
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break;
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}
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}
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FreePool(ReadLine);
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return (Status);
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}
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/**
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This function returns the help information for the specified command. The help text
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will be parsed from a UEFI Shell manual page. (see UEFI Shell 2.0 Appendix B)
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If Sections is specified, then each section name listed will be compared in a casesensitive
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manner, to the section names described in Appendix B. If the section exists,
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it will be appended to the returned help text. If the section does not exist, no
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information will be returned. If Sections is NULL, then all help text information
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available will be returned.
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if BriefDesc is NULL, then the breif description will not be savedd seperatly,
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but placed first in the main HelpText.
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|
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@param[in] ManFileName Points to the NULL-terminated UEFI Shell MAN file name.
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@param[in] Command Points to the NULL-terminated UEFI Shell command name.
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@param[in] Sections Points to the NULL-terminated comma-delimited
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section names to return. If NULL, then all
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sections will be returned.
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|
@param[out] BriefDesc On return, points to a callee-allocated buffer
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containing brief description text.
|
|
@param[out] HelpText On return, points to a callee-allocated buffer
|
|
containing all specified help text.
|
|
|
|
@retval EFI_SUCCESS The help text was returned.
|
|
@retval EFI_OUT_OF_RESOURCES The necessary buffer could not be allocated to hold the
|
|
returned help text.
|
|
@retval EFI_INVALID_PARAMETER HelpText is NULL.
|
|
@retval EFI_INVALID_PARAMETER ManFileName is invalid.
|
|
@retval EFI_NOT_FOUND There is no help text available for Command.
|
|
**/
|
|
EFI_STATUS
|
|
ProcessManFile(
|
|
IN CONST CHAR16 *ManFileName,
|
|
IN CONST CHAR16 *Command,
|
|
IN CONST CHAR16 *Sections OPTIONAL,
|
|
OUT CHAR16 **BriefDesc OPTIONAL,
|
|
OUT CHAR16 **HelpText
|
|
)
|
|
{
|
|
CHAR16 *TempString;
|
|
SHELL_FILE_HANDLE FileHandle;
|
|
EFI_HANDLE CmdFileImgHandle;
|
|
EFI_STATUS Status;
|
|
UINTN HelpSize;
|
|
UINTN BriefSize;
|
|
UINTN StringIdWalker;
|
|
BOOLEAN Ascii;
|
|
CHAR16 *CmdFileName;
|
|
CHAR16 *CmdFilePathName;
|
|
EFI_DEVICE_PATH_PROTOCOL *FileDevPath;
|
|
EFI_DEVICE_PATH_PROTOCOL *DevPath;
|
|
EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;
|
|
|
|
if ( ManFileName == NULL
|
|
|| Command == NULL
|
|
|| HelpText == NULL
|
|
){
|
|
return (EFI_INVALID_PARAMETER);
|
|
}
|
|
|
|
HelpSize = 0;
|
|
BriefSize = 0;
|
|
StringIdWalker = 0;
|
|
TempString = NULL;
|
|
Ascii = FALSE;
|
|
CmdFileName = NULL;
|
|
CmdFilePathName = NULL;
|
|
CmdFileImgHandle = NULL;
|
|
PackageListHeader = NULL;
|
|
FileDevPath = NULL;
|
|
DevPath = NULL;
|
|
|
|
//
|
|
// See if it's in HII first
|
|
//
|
|
TempString = ShellCommandGetCommandHelp(Command);
|
|
if (TempString != NULL) {
|
|
FileHandle = ConvertEfiFileProtocolToShellHandle (CreateFileInterfaceMem (TRUE), NULL);
|
|
HelpSize = StrLen (TempString) * sizeof (CHAR16);
|
|
ShellWriteFile (FileHandle, &HelpSize, TempString);
|
|
ShellSetFilePosition (FileHandle, 0);
|
|
HelpSize = 0;
|
|
BriefSize = 0;
|
|
Status = ManFileFindTitleSection(FileHandle, Command, BriefDesc, &BriefSize, &Ascii);
|
|
if (!EFI_ERROR(Status) && HelpText != NULL){
|
|
Status = ManFileFindSections(FileHandle, Sections, HelpText, &HelpSize, Ascii);
|
|
}
|
|
ShellCloseFile (&FileHandle);
|
|
} else {
|
|
//
|
|
// If the image is a external app, check .MAN file first.
|
|
//
|
|
FileHandle = NULL;
|
|
TempString = GetManFileName(ManFileName);
|
|
if (TempString == NULL) {
|
|
return (EFI_INVALID_PARAMETER);
|
|
}
|
|
|
|
Status = SearchPathForFile(TempString, &FileHandle);
|
|
if (EFI_ERROR(Status)) {
|
|
FileDevPath = FileDevicePath(NULL, TempString);
|
|
DevPath = AppendDevicePath (ShellInfoObject.ImageDevPath, FileDevPath);
|
|
Status = InternalOpenFileDevicePath(DevPath, &FileHandle, EFI_FILE_MODE_READ, 0);
|
|
SHELL_FREE_NON_NULL(FileDevPath);
|
|
SHELL_FREE_NON_NULL(DevPath);
|
|
}
|
|
|
|
if (!EFI_ERROR(Status)) {
|
|
HelpSize = 0;
|
|
BriefSize = 0;
|
|
Status = ManFileFindTitleSection(FileHandle, Command, BriefDesc, &BriefSize, &Ascii);
|
|
if (!EFI_ERROR(Status) && HelpText != NULL){
|
|
Status = ManFileFindSections(FileHandle, Sections, HelpText, &HelpSize, Ascii);
|
|
}
|
|
ShellInfoObject.NewEfiShellProtocol->CloseFile(FileHandle);
|
|
if (!EFI_ERROR(Status)) {
|
|
//
|
|
// Get help text from .MAN file success.
|
|
//
|
|
goto Done;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Load the app image to check EFI_HII_PACKAGE_LIST_PROTOCOL.
|
|
//
|
|
CmdFileName = GetExecuatableFileName(TempString);
|
|
if (CmdFileName == NULL) {
|
|
Status = EFI_OUT_OF_RESOURCES;
|
|
goto Done;
|
|
}
|
|
//
|
|
// If the file in CWD then use the file name, else use the full
|
|
// path name.
|
|
//
|
|
CmdFilePathName = ShellFindFilePath(CmdFileName);
|
|
if (CmdFilePathName == NULL) {
|
|
Status = EFI_NOT_FOUND;
|
|
goto Done;
|
|
}
|
|
DevPath = ShellInfoObject.NewEfiShellProtocol->GetDevicePathFromFilePath(CmdFilePathName);
|
|
Status = gBS->LoadImage(FALSE, gImageHandle, DevPath, NULL, 0, &CmdFileImgHandle);
|
|
if(EFI_ERROR(Status)) {
|
|
*HelpText = NULL;
|
|
goto Done;
|
|
}
|
|
Status = gBS->OpenProtocol(
|
|
CmdFileImgHandle,
|
|
&gEfiHiiPackageListProtocolGuid,
|
|
(VOID**)&PackageListHeader,
|
|
gImageHandle,
|
|
NULL,
|
|
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
|
);
|
|
if(EFI_ERROR(Status)) {
|
|
*HelpText = NULL;
|
|
goto Done;
|
|
}
|
|
|
|
//
|
|
// If get package list on image handle, install it on HiiDatabase.
|
|
//
|
|
Status = gBS->InstallProtocolInterface (
|
|
&mShellManDriverHandle,
|
|
&gEfiDevicePathProtocolGuid,
|
|
EFI_NATIVE_INTERFACE,
|
|
&mShellManHiiDevicePath
|
|
);
|
|
if (EFI_ERROR(Status)) {
|
|
goto Done;
|
|
}
|
|
|
|
Status = gHiiDatabase->NewPackageList (
|
|
gHiiDatabase,
|
|
PackageListHeader,
|
|
mShellManDriverHandle,
|
|
&mShellManHiiHandle
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto Done;
|
|
}
|
|
|
|
StringIdWalker = 1;
|
|
do {
|
|
SHELL_FREE_NON_NULL(TempString);
|
|
if (BriefDesc != NULL) {
|
|
SHELL_FREE_NON_NULL(*BriefDesc);
|
|
}
|
|
TempString = HiiGetString (mShellManHiiHandle, (EFI_STRING_ID)StringIdWalker, NULL);
|
|
if (TempString == NULL) {
|
|
Status = EFI_NOT_FOUND;
|
|
goto Done;
|
|
}
|
|
FileHandle = ConvertEfiFileProtocolToShellHandle (CreateFileInterfaceMem (TRUE), NULL);
|
|
HelpSize = StrLen (TempString) * sizeof (CHAR16);
|
|
ShellWriteFile (FileHandle, &HelpSize, TempString);
|
|
ShellSetFilePosition (FileHandle, 0);
|
|
HelpSize = 0;
|
|
BriefSize = 0;
|
|
Status = ManFileFindTitleSection(FileHandle, Command, BriefDesc, &BriefSize, &Ascii);
|
|
if (!EFI_ERROR(Status) && HelpText != NULL){
|
|
Status = ManFileFindSections(FileHandle, Sections, HelpText, &HelpSize, Ascii);
|
|
}
|
|
ShellCloseFile (&FileHandle);
|
|
if (!EFI_ERROR(Status)){
|
|
//
|
|
// Found what we need and return
|
|
//
|
|
goto Done;
|
|
}
|
|
|
|
StringIdWalker += 1;
|
|
} while (StringIdWalker < 0xFFFF && TempString != NULL);
|
|
|
|
}
|
|
|
|
Done:
|
|
if (mShellManDriverHandle != NULL) {
|
|
gBS->UninstallProtocolInterface (
|
|
mShellManDriverHandle,
|
|
&gEfiDevicePathProtocolGuid,
|
|
&mShellManHiiDevicePath
|
|
);
|
|
mShellManDriverHandle = NULL;
|
|
}
|
|
|
|
if (mShellManHiiHandle != NULL) {
|
|
HiiRemovePackages (mShellManHiiHandle);
|
|
mShellManHiiHandle = NULL;
|
|
}
|
|
|
|
if (CmdFileImgHandle != NULL) {
|
|
Status = gBS->UnloadImage (CmdFileImgHandle);
|
|
}
|
|
|
|
SHELL_FREE_NON_NULL(TempString);
|
|
SHELL_FREE_NON_NULL(CmdFileName);
|
|
SHELL_FREE_NON_NULL(CmdFilePathName);
|
|
SHELL_FREE_NON_NULL(FileDevPath);
|
|
SHELL_FREE_NON_NULL(DevPath);
|
|
|
|
return (Status);
|
|
}
|
|
|