| /** @file | |
| Member functions of EFI_SHELL_PARAMETERS_PROTOCOL and functions for creation, | |
| manipulation, and initialization of EFI_SHELL_PARAMETERS_PROTOCOL. | |
| (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR> | |
| Copyright (C) 2014, Red Hat, Inc. | |
| (C) Copyright 2013 Hewlett-Packard Development Company, L.P.<BR> | |
| Copyright (c) 2009 - 2018, 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" | |
| BOOLEAN AsciiRedirection = FALSE; | |
| /** | |
| Return the next parameter's end from a command line string. | |
| @param[in] String the string to parse | |
| **/ | |
| CONST CHAR16* | |
| FindEndOfParameter( | |
| IN CONST CHAR16 *String | |
| ) | |
| { | |
| CONST CHAR16 *First; | |
| CONST CHAR16 *CloseQuote; | |
| First = FindFirstCharacter(String, L" \"", L'^'); | |
| // | |
| // nothing, all one parameter remaining | |
| // | |
| if (*First == CHAR_NULL) { | |
| return (First); | |
| } | |
| // | |
| // If space before a quote (or neither found, i.e. both CHAR_NULL), | |
| // then that's the end. | |
| // | |
| if (*First == L' ') { | |
| return (First); | |
| } | |
| CloseQuote = FindFirstCharacter (First+1, L"\"", L'^'); | |
| // | |
| // We did not find a terminator... | |
| // | |
| if (*CloseQuote == CHAR_NULL) { | |
| return (NULL); | |
| } | |
| return (FindEndOfParameter (CloseQuote+1)); | |
| } | |
| /** | |
| Return the next parameter from a command line string. | |
| This function moves the next parameter from Walker into TempParameter and moves | |
| Walker up past that parameter for recursive calling. When the final parameter | |
| is moved *Walker will be set to NULL; | |
| Temp Parameter must be large enough to hold the parameter before calling this | |
| function. | |
| This will also remove all remaining ^ characters after processing. | |
| @param[in, out] Walker pointer to string of command line. Adjusted to | |
| reminaing command line on return | |
| @param[in, out] TempParameter pointer to string of command line item extracted. | |
| @param[in] Length buffer size of TempParameter. | |
| @param[in] StripQuotation if TRUE then strip the quotation marks surrounding | |
| the parameters. | |
| @return EFI_INALID_PARAMETER A required parameter was NULL or pointed to a NULL or empty string. | |
| @return EFI_NOT_FOUND A closing " could not be found on the specified string | |
| **/ | |
| EFI_STATUS | |
| GetNextParameter( | |
| IN OUT CHAR16 **Walker, | |
| IN OUT CHAR16 **TempParameter, | |
| IN CONST UINTN Length, | |
| IN BOOLEAN StripQuotation | |
| ) | |
| { | |
| CONST CHAR16 *NextDelim; | |
| if (Walker == NULL | |
| ||*Walker == NULL | |
| ||TempParameter == NULL | |
| ||*TempParameter == NULL | |
| ){ | |
| return (EFI_INVALID_PARAMETER); | |
| } | |
| // | |
| // make sure we dont have any leading spaces | |
| // | |
| while ((*Walker)[0] == L' ') { | |
| (*Walker)++; | |
| } | |
| // | |
| // make sure we still have some params now... | |
| // | |
| if (StrLen(*Walker) == 0) { | |
| DEBUG_CODE_BEGIN(); | |
| *Walker = NULL; | |
| DEBUG_CODE_END(); | |
| return (EFI_INVALID_PARAMETER); | |
| } | |
| NextDelim = FindEndOfParameter(*Walker); | |
| if (NextDelim == NULL){ | |
| DEBUG_CODE_BEGIN(); | |
| *Walker = NULL; | |
| DEBUG_CODE_END(); | |
| return (EFI_NOT_FOUND); | |
| } | |
| StrnCpyS(*TempParameter, Length / sizeof(CHAR16), (*Walker), NextDelim - *Walker); | |
| // | |
| // Add a CHAR_NULL if we didnt get one via the copy | |
| // | |
| if (*NextDelim != CHAR_NULL) { | |
| (*TempParameter)[NextDelim - *Walker] = CHAR_NULL; | |
| } | |
| // | |
| // Update Walker for the next iteration through the function | |
| // | |
| *Walker = (CHAR16*)NextDelim; | |
| // | |
| // Remove any non-escaped quotes in the string | |
| // Remove any remaining escape characters in the string | |
| // | |
| for (NextDelim = FindFirstCharacter(*TempParameter, L"\"^", CHAR_NULL) | |
| ; *NextDelim != CHAR_NULL | |
| ; NextDelim = FindFirstCharacter(NextDelim, L"\"^", CHAR_NULL) | |
| ) { | |
| if (*NextDelim == L'^') { | |
| // | |
| // eliminate the escape ^ | |
| // | |
| CopyMem ((CHAR16*)NextDelim, NextDelim + 1, StrSize (NextDelim + 1)); | |
| NextDelim++; | |
| } else if (*NextDelim == L'\"') { | |
| // | |
| // eliminate the unescaped quote | |
| // | |
| if (StripQuotation) { | |
| CopyMem ((CHAR16*)NextDelim, NextDelim + 1, StrSize (NextDelim + 1)); | |
| } else{ | |
| NextDelim++; | |
| } | |
| } | |
| } | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| Function to populate Argc and Argv. | |
| This function parses the CommandLine and divides it into standard C style Argc/Argv | |
| parameters for inclusion in EFI_SHELL_PARAMETERS_PROTOCOL. this supports space | |
| delimited and quote surrounded parameter definition. | |
| All special character processing (alias, environment variable, redirection, | |
| etc... must be complete before calling this API. | |
| @param[in] CommandLine String of command line to parse | |
| @param[in] StripQuotation if TRUE then strip the quotation marks surrounding | |
| the parameters. | |
| @param[in, out] Argv pointer to array of strings; one for each parameter | |
| @param[in, out] Argc pointer to number of strings in Argv array | |
| @return EFI_SUCCESS the operation was sucessful | |
| @return EFI_OUT_OF_RESOURCES a memory allocation failed. | |
| **/ | |
| EFI_STATUS | |
| ParseCommandLineToArgs( | |
| IN CONST CHAR16 *CommandLine, | |
| IN BOOLEAN StripQuotation, | |
| IN OUT CHAR16 ***Argv, | |
| IN OUT UINTN *Argc | |
| ) | |
| { | |
| UINTN Count; | |
| CHAR16 *TempParameter; | |
| CHAR16 *Walker; | |
| CHAR16 *NewParam; | |
| CHAR16 *NewCommandLine; | |
| UINTN Size; | |
| EFI_STATUS Status; | |
| ASSERT(Argc != NULL); | |
| ASSERT(Argv != NULL); | |
| if (CommandLine == NULL || StrLen(CommandLine)==0) { | |
| (*Argc) = 0; | |
| (*Argv) = NULL; | |
| return (EFI_SUCCESS); | |
| } | |
| NewCommandLine = AllocateCopyPool(StrSize(CommandLine), CommandLine); | |
| if (NewCommandLine == NULL){ | |
| return (EFI_OUT_OF_RESOURCES); | |
| } | |
| TrimSpaces(&NewCommandLine); | |
| Size = StrSize(NewCommandLine); | |
| TempParameter = AllocateZeroPool(Size); | |
| if (TempParameter == NULL) { | |
| SHELL_FREE_NON_NULL(NewCommandLine); | |
| return (EFI_OUT_OF_RESOURCES); | |
| } | |
| for ( Count = 0 | |
| , Walker = (CHAR16*)NewCommandLine | |
| ; Walker != NULL && *Walker != CHAR_NULL | |
| ; Count++ | |
| ) { | |
| if (EFI_ERROR(GetNextParameter(&Walker, &TempParameter, Size, TRUE))) { | |
| break; | |
| } | |
| } | |
| // | |
| // lets allocate the pointer array | |
| // | |
| (*Argv) = AllocateZeroPool((Count)*sizeof(CHAR16*)); | |
| if (*Argv == NULL) { | |
| Status = EFI_OUT_OF_RESOURCES; | |
| goto Done; | |
| } | |
| *Argc = 0; | |
| Walker = (CHAR16*)NewCommandLine; | |
| while(Walker != NULL && *Walker != CHAR_NULL) { | |
| SetMem16(TempParameter, Size, CHAR_NULL); | |
| if (EFI_ERROR(GetNextParameter(&Walker, &TempParameter, Size, StripQuotation))) { | |
| Status = EFI_INVALID_PARAMETER; | |
| goto Done; | |
| } | |
| NewParam = AllocateCopyPool(StrSize(TempParameter), TempParameter); | |
| if (NewParam == NULL){ | |
| Status = EFI_OUT_OF_RESOURCES; | |
| goto Done; | |
| } | |
| ((CHAR16**)(*Argv))[(*Argc)] = NewParam; | |
| (*Argc)++; | |
| } | |
| ASSERT(Count >= (*Argc)); | |
| Status = EFI_SUCCESS; | |
| Done: | |
| SHELL_FREE_NON_NULL(TempParameter); | |
| SHELL_FREE_NON_NULL(NewCommandLine); | |
| return (Status); | |
| } | |
| /** | |
| creates a new EFI_SHELL_PARAMETERS_PROTOCOL instance and populates it and then | |
| installs it on our handle and if there is an existing version of the protocol | |
| that one is cached for removal later. | |
| @param[in, out] NewShellParameters on a successful return, a pointer to pointer | |
| to the newly installed interface. | |
| @param[in, out] RootShellInstance on a successful return, pointer to boolean. | |
| TRUE if this is the root shell instance. | |
| @retval EFI_SUCCESS the operation completed successfully. | |
| @return other the operation failed. | |
| @sa ReinstallProtocolInterface | |
| @sa InstallProtocolInterface | |
| @sa ParseCommandLineToArgs | |
| **/ | |
| EFI_STATUS | |
| CreatePopulateInstallShellParametersProtocol ( | |
| IN OUT EFI_SHELL_PARAMETERS_PROTOCOL **NewShellParameters, | |
| IN OUT BOOLEAN *RootShellInstance | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_LOADED_IMAGE_PROTOCOL *LoadedImage; | |
| CHAR16 *FullCommandLine; | |
| UINTN Size; | |
| Size = 0; | |
| FullCommandLine = NULL; | |
| LoadedImage = NULL; | |
| // | |
| // Assert for valid parameters | |
| // | |
| ASSERT(NewShellParameters != NULL); | |
| ASSERT(RootShellInstance != NULL); | |
| // | |
| // See if we have a shell parameters placed on us | |
| // | |
| Status = gBS->OpenProtocol ( | |
| gImageHandle, | |
| &gEfiShellParametersProtocolGuid, | |
| (VOID **) &ShellInfoObject.OldShellParameters, | |
| gImageHandle, | |
| NULL, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| // | |
| // if we don't then we must be the root shell (error is expected) | |
| // | |
| if (EFI_ERROR (Status)) { | |
| *RootShellInstance = TRUE; | |
| } | |
| // | |
| // Allocate the new structure | |
| // | |
| *NewShellParameters = AllocateZeroPool(sizeof(EFI_SHELL_PARAMETERS_PROTOCOL)); | |
| if ((*NewShellParameters) == NULL) { | |
| return (EFI_OUT_OF_RESOURCES); | |
| } | |
| // | |
| // get loaded image protocol | |
| // | |
| Status = gBS->OpenProtocol ( | |
| gImageHandle, | |
| &gEfiLoadedImageProtocolGuid, | |
| (VOID **) &LoadedImage, | |
| gImageHandle, | |
| NULL, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| ASSERT_EFI_ERROR(Status); | |
| // | |
| // Build the full command line | |
| // | |
| Status = SHELL_GET_ENVIRONMENT_VARIABLE(L"ShellOpt", &Size, FullCommandLine); | |
| if (Status == EFI_BUFFER_TOO_SMALL) { | |
| FullCommandLine = AllocateZeroPool(Size + LoadedImage->LoadOptionsSize); | |
| Status = SHELL_GET_ENVIRONMENT_VARIABLE(L"ShellOpt", &Size, FullCommandLine); | |
| } | |
| if (Status == EFI_NOT_FOUND) { | |
| // | |
| // no parameters via environment... ok | |
| // | |
| } else { | |
| if (EFI_ERROR(Status)) { | |
| return (Status); | |
| } | |
| } | |
| if (Size == 0 && LoadedImage->LoadOptionsSize != 0) { | |
| ASSERT(FullCommandLine == NULL); | |
| // | |
| // Now we need to include a NULL terminator in the size. | |
| // | |
| Size = LoadedImage->LoadOptionsSize + sizeof(FullCommandLine[0]); | |
| FullCommandLine = AllocateZeroPool(Size); | |
| } | |
| if (FullCommandLine != NULL) { | |
| CopyMem (FullCommandLine, LoadedImage->LoadOptions, LoadedImage->LoadOptionsSize); | |
| // | |
| // Populate Argc and Argv | |
| // | |
| Status = ParseCommandLineToArgs(FullCommandLine, | |
| TRUE, | |
| &(*NewShellParameters)->Argv, | |
| &(*NewShellParameters)->Argc); | |
| FreePool(FullCommandLine); | |
| ASSERT_EFI_ERROR(Status); | |
| } else { | |
| (*NewShellParameters)->Argv = NULL; | |
| (*NewShellParameters)->Argc = 0; | |
| } | |
| // | |
| // Populate the 3 faked file systems... | |
| // | |
| if (*RootShellInstance) { | |
| (*NewShellParameters)->StdIn = &FileInterfaceStdIn; | |
| (*NewShellParameters)->StdOut = &FileInterfaceStdOut; | |
| (*NewShellParameters)->StdErr = &FileInterfaceStdErr; | |
| Status = gBS->InstallProtocolInterface(&gImageHandle, | |
| &gEfiShellParametersProtocolGuid, | |
| EFI_NATIVE_INTERFACE, | |
| (VOID*)(*NewShellParameters)); | |
| } else { | |
| // | |
| // copy from the existing ones | |
| // | |
| (*NewShellParameters)->StdIn = ShellInfoObject.OldShellParameters->StdIn; | |
| (*NewShellParameters)->StdOut = ShellInfoObject.OldShellParameters->StdOut; | |
| (*NewShellParameters)->StdErr = ShellInfoObject.OldShellParameters->StdErr; | |
| Status = gBS->ReinstallProtocolInterface(gImageHandle, | |
| &gEfiShellParametersProtocolGuid, | |
| (VOID*)ShellInfoObject.OldShellParameters, | |
| (VOID*)(*NewShellParameters)); | |
| } | |
| return (Status); | |
| } | |
| /** | |
| frees all memory used by createion and installation of shell parameters protocol | |
| and if there was an old version installed it will restore that one. | |
| @param NewShellParameters the interface of EFI_SHELL_PARAMETERS_PROTOCOL that is | |
| being cleaned up. | |
| @retval EFI_SUCCESS the cleanup was successful | |
| @return other the cleanup failed | |
| @sa ReinstallProtocolInterface | |
| @sa UninstallProtocolInterface | |
| **/ | |
| EFI_STATUS | |
| CleanUpShellParametersProtocol ( | |
| IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *NewShellParameters | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| UINTN LoopCounter; | |
| // | |
| // If the old exists we need to restore it | |
| // | |
| if (ShellInfoObject.OldShellParameters != NULL) { | |
| Status = gBS->ReinstallProtocolInterface(gImageHandle, | |
| &gEfiShellParametersProtocolGuid, | |
| (VOID*)NewShellParameters, | |
| (VOID*)ShellInfoObject.OldShellParameters); | |
| DEBUG_CODE(ShellInfoObject.OldShellParameters = NULL;); | |
| } else { | |
| // | |
| // No old one, just uninstall us... | |
| // | |
| Status = gBS->UninstallProtocolInterface(gImageHandle, | |
| &gEfiShellParametersProtocolGuid, | |
| (VOID*)NewShellParameters); | |
| } | |
| if (NewShellParameters->Argv != NULL) { | |
| for ( LoopCounter = 0 | |
| ; LoopCounter < NewShellParameters->Argc | |
| ; LoopCounter++ | |
| ){ | |
| FreePool(NewShellParameters->Argv[LoopCounter]); | |
| } | |
| FreePool(NewShellParameters->Argv); | |
| } | |
| FreePool(NewShellParameters); | |
| return (Status); | |
| } | |
| /** | |
| Determin if a file name represents a unicode file. | |
| @param[in] FileName Pointer to the filename to open. | |
| @retval EFI_SUCCESS The file is a unicode file. | |
| @return An error upon failure. | |
| **/ | |
| EFI_STATUS | |
| IsUnicodeFile( | |
| IN CONST CHAR16 *FileName | |
| ) | |
| { | |
| SHELL_FILE_HANDLE Handle; | |
| EFI_STATUS Status; | |
| UINT64 OriginalFilePosition; | |
| UINTN CharSize; | |
| CHAR16 CharBuffer; | |
| Status = gEfiShellProtocol->OpenFileByName(FileName, &Handle, EFI_FILE_MODE_READ); | |
| if (EFI_ERROR(Status)) { | |
| return (Status); | |
| } | |
| gEfiShellProtocol->GetFilePosition(Handle, &OriginalFilePosition); | |
| gEfiShellProtocol->SetFilePosition(Handle, 0); | |
| CharSize = sizeof(CHAR16); | |
| Status = gEfiShellProtocol->ReadFile(Handle, &CharSize, &CharBuffer); | |
| if (EFI_ERROR(Status) || CharBuffer != gUnicodeFileTag) { | |
| Status = EFI_BUFFER_TOO_SMALL; | |
| } | |
| gEfiShellProtocol->SetFilePosition(Handle, OriginalFilePosition); | |
| gEfiShellProtocol->CloseFile(Handle); | |
| return (Status); | |
| } | |
| /** | |
| Strips out quotes sections of a string. | |
| All of the characters between quotes is replaced with spaces. | |
| @param[in, out] TheString A pointer to the string to update. | |
| **/ | |
| VOID | |
| StripQuotes ( | |
| IN OUT CHAR16 *TheString | |
| ) | |
| { | |
| BOOLEAN RemoveNow; | |
| for (RemoveNow = FALSE ; TheString != NULL && *TheString != CHAR_NULL ; TheString++) { | |
| if (*TheString == L'^' && *(TheString + 1) == L'\"') { | |
| TheString++; | |
| } else if (*TheString == L'\"') { | |
| RemoveNow = (BOOLEAN)!RemoveNow; | |
| } else if (RemoveNow) { | |
| *TheString = L' '; | |
| } | |
| } | |
| } | |
| /** | |
| Calcualte the 32-bit CRC in a EFI table using the service provided by the | |
| gRuntime service. | |
| @param Hdr Pointer to an EFI standard header | |
| **/ | |
| VOID | |
| CalculateEfiHdrCrc ( | |
| IN OUT EFI_TABLE_HEADER *Hdr | |
| ) | |
| { | |
| UINT32 Crc; | |
| Hdr->CRC32 = 0; | |
| // | |
| // If gBS->CalculateCrce32 () == CoreEfiNotAvailableYet () then | |
| // Crc will come back as zero if we set it to zero here | |
| // | |
| Crc = 0; | |
| gBS->CalculateCrc32 ((UINT8 *)Hdr, Hdr->HeaderSize, &Crc); | |
| Hdr->CRC32 = Crc; | |
| } | |
| /** | |
| Fix a string to only have the file name, removing starting at the first space of whatever is quoted. | |
| @param[in] FileName The filename to start with. | |
| @retval NULL FileName was invalid. | |
| @return The modified FileName. | |
| **/ | |
| CHAR16* | |
| FixFileName ( | |
| IN CHAR16 *FileName | |
| ) | |
| { | |
| CHAR16 *Copy; | |
| CHAR16 *TempLocation; | |
| if (FileName == NULL) { | |
| return (NULL); | |
| } | |
| if (FileName[0] == L'\"') { | |
| Copy = FileName+1; | |
| if ((TempLocation = StrStr(Copy , L"\"")) != NULL) { | |
| TempLocation[0] = CHAR_NULL; | |
| } | |
| } else { | |
| Copy = FileName; | |
| while(Copy[0] == L' ') { | |
| Copy++; | |
| } | |
| if ((TempLocation = StrStr(Copy , L" ")) != NULL) { | |
| TempLocation[0] = CHAR_NULL; | |
| } | |
| } | |
| if (Copy[0] == CHAR_NULL) { | |
| return (NULL); | |
| } | |
| return (Copy); | |
| } | |
| /** | |
| Fix a string to only have the environment variable name, removing starting at the first space of whatever is quoted and removing the leading and trailing %. | |
| @param[in] FileName The filename to start with. | |
| @retval NULL FileName was invalid. | |
| @return The modified FileName. | |
| **/ | |
| CHAR16* | |
| FixVarName ( | |
| IN CHAR16 *FileName | |
| ) | |
| { | |
| CHAR16 *Copy; | |
| CHAR16 *TempLocation; | |
| Copy = FileName; | |
| if (FileName[0] == L'%') { | |
| Copy = FileName+1; | |
| if ((TempLocation = StrStr(Copy , L"%")) != NULL) { | |
| TempLocation[0] = CHAR_NULL; | |
| } | |
| } | |
| return (FixFileName(Copy)); | |
| } | |
| /** | |
| Write the unicode file tag to the specified file. | |
| It is the caller's responsibility to ensure that | |
| ShellInfoObject.NewEfiShellProtocol has been initialized before calling this | |
| function. | |
| @param[in] FileHandle The file to write the unicode file tag to. | |
| @return Status code from ShellInfoObject.NewEfiShellProtocol->WriteFile. | |
| **/ | |
| EFI_STATUS | |
| WriteFileTag ( | |
| IN SHELL_FILE_HANDLE FileHandle | |
| ) | |
| { | |
| CHAR16 FileTag; | |
| UINTN Size; | |
| EFI_STATUS Status; | |
| FileTag = gUnicodeFileTag; | |
| Size = sizeof FileTag; | |
| Status = ShellInfoObject.NewEfiShellProtocol->WriteFile (FileHandle, &Size, | |
| &FileTag); | |
| ASSERT (EFI_ERROR (Status) || Size == sizeof FileTag); | |
| return Status; | |
| } | |
| /** | |
| Funcion will replace the current StdIn and StdOut in the ShellParameters protocol | |
| structure by parsing NewCommandLine. The current values are returned to the | |
| user. | |
| This will also update the system table. | |
| @param[in, out] ShellParameters Pointer to parameter structure to modify. | |
| @param[in] NewCommandLine The new command line to parse and use. | |
| @param[out] OldStdIn Pointer to old StdIn. | |
| @param[out] OldStdOut Pointer to old StdOut. | |
| @param[out] OldStdErr Pointer to old StdErr. | |
| @param[out] SystemTableInfo Pointer to old system table information. | |
| @retval EFI_SUCCESS Operation was sucessful, Argv and Argc are valid. | |
| @retval EFI_OUT_OF_RESOURCES A memory allocation failed. | |
| **/ | |
| EFI_STATUS | |
| UpdateStdInStdOutStdErr( | |
| IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *ShellParameters, | |
| IN CHAR16 *NewCommandLine, | |
| OUT SHELL_FILE_HANDLE *OldStdIn, | |
| OUT SHELL_FILE_HANDLE *OldStdOut, | |
| OUT SHELL_FILE_HANDLE *OldStdErr, | |
| OUT SYSTEM_TABLE_INFO *SystemTableInfo | |
| ) | |
| { | |
| CHAR16 *CommandLineCopy; | |
| CHAR16 *CommandLineWalker; | |
| CHAR16 *StdErrFileName; | |
| CHAR16 *StdOutFileName; | |
| CHAR16 *StdInFileName; | |
| CHAR16 *StdInVarName; | |
| CHAR16 *StdOutVarName; | |
| CHAR16 *StdErrVarName; | |
| EFI_STATUS Status; | |
| SHELL_FILE_HANDLE TempHandle; | |
| UINT64 FileSize; | |
| BOOLEAN OutUnicode; | |
| BOOLEAN InUnicode; | |
| BOOLEAN ErrUnicode; | |
| BOOLEAN OutAppend; | |
| BOOLEAN ErrAppend; | |
| UINTN Size; | |
| SPLIT_LIST *Split; | |
| CHAR16 *FirstLocation; | |
| BOOLEAN Volatile; | |
| OutUnicode = TRUE; | |
| InUnicode = TRUE; | |
| AsciiRedirection = FALSE; | |
| ErrUnicode = TRUE; | |
| StdInVarName = NULL; | |
| StdOutVarName = NULL; | |
| StdErrVarName = NULL; | |
| StdErrFileName = NULL; | |
| StdInFileName = NULL; | |
| StdOutFileName = NULL; | |
| ErrAppend = FALSE; | |
| OutAppend = FALSE; | |
| CommandLineCopy = NULL; | |
| FirstLocation = NULL; | |
| if (ShellParameters == NULL || SystemTableInfo == NULL || OldStdIn == NULL || OldStdOut == NULL || OldStdErr == NULL) { | |
| return (EFI_INVALID_PARAMETER); | |
| } | |
| SystemTableInfo->ConIn = gST->ConIn; | |
| SystemTableInfo->ConInHandle = gST->ConsoleInHandle; | |
| SystemTableInfo->ConOut = gST->ConOut; | |
| SystemTableInfo->ConOutHandle = gST->ConsoleOutHandle; | |
| SystemTableInfo->ErrOut = gST->StdErr; | |
| SystemTableInfo->ErrOutHandle = gST->StandardErrorHandle; | |
| *OldStdIn = ShellParameters->StdIn; | |
| *OldStdOut = ShellParameters->StdOut; | |
| *OldStdErr = ShellParameters->StdErr; | |
| if (NewCommandLine == NULL) { | |
| return (EFI_SUCCESS); | |
| } | |
| CommandLineCopy = StrnCatGrow(&CommandLineCopy, NULL, NewCommandLine, 0); | |
| if (CommandLineCopy == NULL) { | |
| return (EFI_OUT_OF_RESOURCES); | |
| } | |
| Status = EFI_SUCCESS; | |
| Split = NULL; | |
| FirstLocation = CommandLineCopy + StrLen(CommandLineCopy); | |
| StripQuotes(CommandLineCopy); | |
| if (!IsListEmpty(&ShellInfoObject.SplitList.Link)) { | |
| Split = (SPLIT_LIST*)GetFirstNode(&ShellInfoObject.SplitList.Link); | |
| if (Split != NULL && Split->SplitStdIn != NULL) { | |
| ShellParameters->StdIn = Split->SplitStdIn; | |
| } | |
| if (Split != NULL && Split->SplitStdOut != NULL) { | |
| ShellParameters->StdOut = Split->SplitStdOut; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 2>>v ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 12, L' '); | |
| StdErrVarName = CommandLineWalker += 6; | |
| ErrAppend = TRUE; | |
| if (StrStr(CommandLineWalker, L" 2>>v ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 1>>v ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 12, L' '); | |
| StdOutVarName = CommandLineWalker += 6; | |
| OutAppend = TRUE; | |
| if (StrStr(CommandLineWalker, L" 1>>v ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } else if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" >>v ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 10, L' '); | |
| StdOutVarName = CommandLineWalker += 5; | |
| OutAppend = TRUE; | |
| if (StrStr(CommandLineWalker, L" >>v ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } else if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" >v ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 8, L' '); | |
| StdOutVarName = CommandLineWalker += 4; | |
| OutAppend = FALSE; | |
| if (StrStr(CommandLineWalker, L" >v ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 1>>a ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 12, L' '); | |
| StdOutFileName = CommandLineWalker += 6; | |
| OutAppend = TRUE; | |
| OutUnicode = FALSE; | |
| if (StrStr(CommandLineWalker, L" 1>>a ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 1>> ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 10, L' '); | |
| if (StdOutFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdOutFileName = CommandLineWalker += 5; | |
| OutAppend = TRUE; | |
| } | |
| if (StrStr(CommandLineWalker, L" 1>> ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" >> ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 8, L' '); | |
| if (StdOutFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdOutFileName = CommandLineWalker += 4; | |
| OutAppend = TRUE; | |
| } | |
| if (StrStr(CommandLineWalker, L" >> ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" >>a ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 10, L' '); | |
| if (StdOutFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdOutFileName = CommandLineWalker += 5; | |
| OutAppend = TRUE; | |
| OutUnicode = FALSE; | |
| } | |
| if (StrStr(CommandLineWalker, L" >>a ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 1>a ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 10, L' '); | |
| if (StdOutFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdOutFileName = CommandLineWalker += 5; | |
| OutAppend = FALSE; | |
| OutUnicode = FALSE; | |
| } | |
| if (StrStr(CommandLineWalker, L" 1>a ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" >a ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 8, L' '); | |
| if (StdOutFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdOutFileName = CommandLineWalker += 4; | |
| OutAppend = FALSE; | |
| OutUnicode = FALSE; | |
| } | |
| if (StrStr(CommandLineWalker, L" >a ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 2>> ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 10, L' '); | |
| if (StdErrFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdErrFileName = CommandLineWalker += 5; | |
| ErrAppend = TRUE; | |
| } | |
| if (StrStr(CommandLineWalker, L" 2>> ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 2>v ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 10, L' '); | |
| if (StdErrVarName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdErrVarName = CommandLineWalker += 5; | |
| ErrAppend = FALSE; | |
| } | |
| if (StrStr(CommandLineWalker, L" 2>v ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 1>v ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 10, L' '); | |
| if (StdOutVarName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdOutVarName = CommandLineWalker += 5; | |
| OutAppend = FALSE; | |
| } | |
| if (StrStr(CommandLineWalker, L" 1>v ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 2>a ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 10, L' '); | |
| if (StdErrFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdErrFileName = CommandLineWalker += 5; | |
| ErrAppend = FALSE; | |
| ErrUnicode = FALSE; | |
| } | |
| if (StrStr(CommandLineWalker, L" 2>a ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 2> ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 8, L' '); | |
| if (StdErrFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdErrFileName = CommandLineWalker += 4; | |
| ErrAppend = FALSE; | |
| } | |
| if (StrStr(CommandLineWalker, L" 2> ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" 1> ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 8, L' '); | |
| if (StdOutFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdOutFileName = CommandLineWalker += 4; | |
| OutAppend = FALSE; | |
| } | |
| if (StrStr(CommandLineWalker, L" 1> ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" > ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 6, L' '); | |
| if (StdOutFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdOutFileName = CommandLineWalker += 3; | |
| OutAppend = FALSE; | |
| } | |
| if (StrStr(CommandLineWalker, L" > ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" < ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 6, L' '); | |
| if (StdInFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdInFileName = CommandLineWalker += 3; | |
| } | |
| if (StrStr(CommandLineWalker, L" < ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" <a ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 8, L' '); | |
| if (StdInFileName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdInFileName = CommandLineWalker += 4; | |
| InUnicode = FALSE; | |
| AsciiRedirection = TRUE; | |
| } | |
| if (StrStr(CommandLineWalker, L" <a ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| if (!EFI_ERROR(Status) && (CommandLineWalker = StrStr(CommandLineCopy, L" <v ")) != NULL) { | |
| FirstLocation = MIN(CommandLineWalker, FirstLocation); | |
| SetMem16(CommandLineWalker, 8, L' '); | |
| if (StdInVarName != NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| StdInVarName = CommandLineWalker += 4; | |
| } | |
| if (StrStr(CommandLineWalker, L" <v ") != NULL) { | |
| Status = EFI_NOT_FOUND; | |
| } | |
| } | |
| // | |
| // re-populate the string to support any filenames that were in quotes. | |
| // | |
| StrnCpyS(CommandLineCopy, StrSize(CommandLineCopy)/sizeof(CHAR16), NewCommandLine, StrLen(NewCommandLine)); | |
| if (FirstLocation != CommandLineCopy + StrLen(CommandLineCopy) | |
| && (((UINTN)FirstLocation - (UINTN)CommandLineCopy)/sizeof(CHAR16) < StrLen(NewCommandLine)) | |
| ){ | |
| *(NewCommandLine + ((UINTN)FirstLocation - (UINTN)CommandLineCopy)/sizeof(CHAR16)) = CHAR_NULL; | |
| } | |
| if (!EFI_ERROR(Status)) { | |
| if (StdErrFileName != NULL) { | |
| if ((StdErrFileName = FixFileName(StdErrFileName)) == NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } | |
| } | |
| if (StdOutFileName != NULL) { | |
| if ((StdOutFileName = FixFileName(StdOutFileName)) == NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } | |
| } | |
| if (StdInFileName != NULL) { | |
| if ((StdInFileName = FixFileName(StdInFileName)) == NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } | |
| } | |
| if (StdErrVarName != NULL) { | |
| if ((StdErrVarName = FixVarName(StdErrVarName)) == NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } | |
| } | |
| if (StdOutVarName != NULL) { | |
| if ((StdOutVarName = FixVarName(StdOutVarName)) == NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } | |
| } | |
| if (StdInVarName != NULL) { | |
| if ((StdInVarName = FixVarName(StdInVarName)) == NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } | |
| } | |
| // | |
| // Verify not the same and not duplicating something from a split | |
| // | |
| if ( | |
| // | |
| // Check that no 2 filenames are the same | |
| // | |
| (StdErrFileName != NULL && StdOutFileName!= NULL && StringNoCaseCompare(&StdErrFileName, &StdOutFileName) == 0) | |
| ||(StdErrFileName != NULL && StdInFileName != NULL && StringNoCaseCompare(&StdErrFileName, &StdInFileName ) == 0) | |
| ||(StdOutFileName != NULL && StdInFileName != NULL && StringNoCaseCompare(&StdOutFileName, &StdInFileName ) == 0) | |
| // | |
| // Check that no 2 variable names are the same | |
| // | |
| ||(StdErrVarName != NULL && StdInVarName != NULL && StringNoCaseCompare(&StdErrVarName , &StdInVarName ) == 0) | |
| ||(StdOutVarName != NULL && StdInVarName != NULL && StringNoCaseCompare(&StdOutVarName , &StdInVarName ) == 0) | |
| ||(StdErrVarName != NULL && StdOutVarName != NULL && StringNoCaseCompare(&StdErrVarName , &StdOutVarName ) == 0) | |
| // | |
| // When a split (using | operator) is in place some are not allowed | |
| // | |
| ||(Split != NULL && Split->SplitStdIn != NULL && (StdInVarName != NULL || StdInFileName != NULL)) | |
| ||(Split != NULL && Split->SplitStdOut != NULL && (StdOutVarName != NULL || StdOutFileName != NULL)) | |
| // | |
| // Check that nothing is trying to be output to 2 locations. | |
| // | |
| ||(StdErrFileName != NULL && StdErrVarName != NULL) | |
| ||(StdOutFileName != NULL && StdOutVarName != NULL) | |
| ||(StdInFileName != NULL && StdInVarName != NULL) | |
| // | |
| // Check for no volatile environment variables | |
| // | |
| ||(StdErrVarName != NULL && !EFI_ERROR (IsVolatileEnv (StdErrVarName, &Volatile)) && !Volatile) | |
| ||(StdOutVarName != NULL && !EFI_ERROR (IsVolatileEnv (StdOutVarName, &Volatile)) && !Volatile) | |
| // | |
| // Cant redirect during a reconnect operation. | |
| // | |
| ||(StrStr(NewCommandLine, L"connect -r") != NULL | |
| && (StdOutVarName != NULL || StdOutFileName != NULL || StdErrFileName != NULL || StdErrVarName != NULL)) | |
| // | |
| // Check that filetypes (Unicode/Ascii) do not change during an append | |
| // | |
| ||(StdOutFileName != NULL && OutUnicode && OutAppend && (!EFI_ERROR(ShellFileExists(StdOutFileName)) && EFI_ERROR(IsUnicodeFile(StdOutFileName)))) | |
| ||(StdErrFileName != NULL && ErrUnicode && ErrAppend && (!EFI_ERROR(ShellFileExists(StdErrFileName)) && EFI_ERROR(IsUnicodeFile(StdErrFileName)))) | |
| ||(StdOutFileName != NULL && !OutUnicode && OutAppend && (!EFI_ERROR(ShellFileExists(StdOutFileName)) && !EFI_ERROR(IsUnicodeFile(StdOutFileName)))) | |
| ||(StdErrFileName != NULL && !ErrUnicode && ErrAppend && (!EFI_ERROR(ShellFileExists(StdErrFileName)) && !EFI_ERROR(IsUnicodeFile(StdErrFileName)))) | |
| ){ | |
| Status = EFI_INVALID_PARAMETER; | |
| ShellParameters->StdIn = *OldStdIn; | |
| ShellParameters->StdOut = *OldStdOut; | |
| ShellParameters->StdErr = *OldStdErr; | |
| } else if (!EFI_ERROR(Status)){ | |
| // | |
| // Open the Std<Whatever> and we should not have conflicts here... | |
| // | |
| // | |
| // StdErr to a file | |
| // | |
| if (StdErrFileName != NULL) { | |
| if (!ErrAppend) { | |
| // | |
| // delete existing file. | |
| // | |
| ShellInfoObject.NewEfiShellProtocol->DeleteFileByName(StdErrFileName); | |
| } | |
| Status = ShellOpenFileByName(StdErrFileName, &TempHandle, EFI_FILE_MODE_WRITE|EFI_FILE_MODE_READ|EFI_FILE_MODE_CREATE,0); | |
| if (!ErrAppend && ErrUnicode && !EFI_ERROR(Status)) { | |
| Status = WriteFileTag (TempHandle); | |
| } | |
| if (!ErrUnicode && !EFI_ERROR(Status)) { | |
| TempHandle = CreateFileInterfaceFile(TempHandle, FALSE); | |
| ASSERT(TempHandle != NULL); | |
| } | |
| if (!EFI_ERROR(Status)) { | |
| ShellParameters->StdErr = TempHandle; | |
| gST->StdErr = CreateSimpleTextOutOnFile(TempHandle, &gST->StandardErrorHandle, gST->StdErr); | |
| } | |
| } | |
| // | |
| // StdOut to a file | |
| // | |
| if (!EFI_ERROR(Status) && StdOutFileName != NULL) { | |
| if (!OutAppend) { | |
| // | |
| // delete existing file. | |
| // | |
| ShellInfoObject.NewEfiShellProtocol->DeleteFileByName(StdOutFileName); | |
| } | |
| Status = ShellOpenFileByName(StdOutFileName, &TempHandle, EFI_FILE_MODE_WRITE|EFI_FILE_MODE_READ|EFI_FILE_MODE_CREATE,0); | |
| if (TempHandle == NULL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| if (gUnicodeCollation->MetaiMatch (gUnicodeCollation, StdOutFileName, L"NUL")) { | |
| //no-op | |
| } else if (!OutAppend && OutUnicode && !EFI_ERROR(Status)) { | |
| Status = WriteFileTag (TempHandle); | |
| } else if (OutAppend) { | |
| Status = ShellInfoObject.NewEfiShellProtocol->GetFileSize(TempHandle, &FileSize); | |
| if (!EFI_ERROR(Status)) { | |
| // | |
| // When appending to a new unicode file, write the file tag. | |
| // Otherwise (ie. when appending to a new ASCII file, or an | |
| // existent file with any encoding), just seek to the end. | |
| // | |
| Status = (FileSize == 0 && OutUnicode) ? | |
| WriteFileTag (TempHandle) : | |
| ShellInfoObject.NewEfiShellProtocol->SetFilePosition ( | |
| TempHandle, | |
| FileSize); | |
| } | |
| } | |
| if (!OutUnicode && !EFI_ERROR(Status)) { | |
| TempHandle = CreateFileInterfaceFile(TempHandle, FALSE); | |
| ASSERT(TempHandle != NULL); | |
| } | |
| if (!EFI_ERROR(Status)) { | |
| ShellParameters->StdOut = TempHandle; | |
| gST->ConOut = CreateSimpleTextOutOnFile(TempHandle, &gST->ConsoleOutHandle, gST->ConOut); | |
| } | |
| } | |
| } | |
| // | |
| // StdOut to a var | |
| // | |
| if (!EFI_ERROR(Status) && StdOutVarName != NULL) { | |
| if (!OutAppend) { | |
| // | |
| // delete existing variable. | |
| // | |
| SHELL_SET_ENVIRONMENT_VARIABLE_V(StdOutVarName, 0, L""); | |
| } | |
| TempHandle = CreateFileInterfaceEnv(StdOutVarName); | |
| ASSERT(TempHandle != NULL); | |
| ShellParameters->StdOut = TempHandle; | |
| gST->ConOut = CreateSimpleTextOutOnFile(TempHandle, &gST->ConsoleOutHandle, gST->ConOut); | |
| } | |
| // | |
| // StdErr to a var | |
| // | |
| if (!EFI_ERROR(Status) && StdErrVarName != NULL) { | |
| if (!ErrAppend) { | |
| // | |
| // delete existing variable. | |
| // | |
| SHELL_SET_ENVIRONMENT_VARIABLE_V(StdErrVarName, 0, L""); | |
| } | |
| TempHandle = CreateFileInterfaceEnv(StdErrVarName); | |
| ASSERT(TempHandle != NULL); | |
| ShellParameters->StdErr = TempHandle; | |
| gST->StdErr = CreateSimpleTextOutOnFile(TempHandle, &gST->StandardErrorHandle, gST->StdErr); | |
| } | |
| // | |
| // StdIn from a var | |
| // | |
| if (!EFI_ERROR(Status) && StdInVarName != NULL) { | |
| TempHandle = CreateFileInterfaceEnv(StdInVarName); | |
| if (TempHandle == NULL) { | |
| Status = EFI_OUT_OF_RESOURCES; | |
| } else { | |
| if (!InUnicode) { | |
| TempHandle = CreateFileInterfaceFile(TempHandle, FALSE); | |
| } | |
| Size = 0; | |
| if (TempHandle == NULL || ((EFI_FILE_PROTOCOL*)TempHandle)->Read(TempHandle, &Size, NULL) != EFI_BUFFER_TOO_SMALL) { | |
| Status = EFI_INVALID_PARAMETER; | |
| } else { | |
| ShellParameters->StdIn = TempHandle; | |
| gST->ConIn = CreateSimpleTextInOnFile(TempHandle, &gST->ConsoleInHandle); | |
| } | |
| } | |
| } | |
| // | |
| // StdIn from a file | |
| // | |
| if (!EFI_ERROR(Status) && StdInFileName != NULL) { | |
| Status = ShellOpenFileByName( | |
| StdInFileName, | |
| &TempHandle, | |
| EFI_FILE_MODE_READ, | |
| 0); | |
| if (!EFI_ERROR(Status)) { | |
| if (!InUnicode) { | |
| // | |
| // Create the ASCII->Unicode conversion layer | |
| // | |
| TempHandle = CreateFileInterfaceFile(TempHandle, FALSE); | |
| } | |
| ShellParameters->StdIn = TempHandle; | |
| gST->ConIn = CreateSimpleTextInOnFile(TempHandle, &gST->ConsoleInHandle); | |
| } | |
| } | |
| } | |
| } | |
| FreePool(CommandLineCopy); | |
| CalculateEfiHdrCrc(&gST->Hdr); | |
| if (gST->ConIn == NULL ||gST->ConOut == NULL) { | |
| Status = EFI_OUT_OF_RESOURCES; | |
| } | |
| if (Status == EFI_NOT_FOUND) { | |
| ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_REDUNDA_REDIR), ShellInfoObject.HiiHandle); | |
| } else if (EFI_ERROR(Status)) { | |
| ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_INVALID_REDIR), ShellInfoObject.HiiHandle); | |
| } | |
| return (Status); | |
| } | |
| /** | |
| Funcion will replace the current StdIn and StdOut in the ShellParameters protocol | |
| structure with StdIn and StdOut. The current values are de-allocated. | |
| @param[in, out] ShellParameters Pointer to parameter structure to modify. | |
| @param[in] OldStdIn Pointer to old StdIn. | |
| @param[in] OldStdOut Pointer to old StdOut. | |
| @param[in] OldStdErr Pointer to old StdErr. | |
| @param[in] SystemTableInfo Pointer to old system table information. | |
| **/ | |
| EFI_STATUS | |
| RestoreStdInStdOutStdErr ( | |
| IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *ShellParameters, | |
| IN SHELL_FILE_HANDLE *OldStdIn, | |
| IN SHELL_FILE_HANDLE *OldStdOut, | |
| IN SHELL_FILE_HANDLE *OldStdErr, | |
| IN SYSTEM_TABLE_INFO *SystemTableInfo | |
| ) | |
| { | |
| SPLIT_LIST *Split; | |
| if (ShellParameters == NULL | |
| ||OldStdIn == NULL | |
| ||OldStdOut == NULL | |
| ||OldStdErr == NULL | |
| ||SystemTableInfo == NULL) { | |
| return (EFI_INVALID_PARAMETER); | |
| } | |
| if (!IsListEmpty(&ShellInfoObject.SplitList.Link)) { | |
| Split = (SPLIT_LIST*)GetFirstNode(&ShellInfoObject.SplitList.Link); | |
| } else { | |
| Split = NULL; | |
| } | |
| if (ShellParameters->StdIn != *OldStdIn) { | |
| if ((Split != NULL && Split->SplitStdIn != ShellParameters->StdIn) || Split == NULL) { | |
| gEfiShellProtocol->CloseFile(ShellParameters->StdIn); | |
| } | |
| ShellParameters->StdIn = *OldStdIn; | |
| } | |
| if (ShellParameters->StdOut != *OldStdOut) { | |
| if ((Split != NULL && Split->SplitStdOut != ShellParameters->StdOut) || Split == NULL) { | |
| gEfiShellProtocol->CloseFile(ShellParameters->StdOut); | |
| } | |
| ShellParameters->StdOut = *OldStdOut; | |
| } | |
| if (ShellParameters->StdErr != *OldStdErr) { | |
| gEfiShellProtocol->CloseFile(ShellParameters->StdErr); | |
| ShellParameters->StdErr = *OldStdErr; | |
| } | |
| if (gST->ConIn != SystemTableInfo->ConIn) { | |
| CloseSimpleTextInOnFile(gST->ConIn); | |
| gST->ConIn = SystemTableInfo->ConIn; | |
| gST->ConsoleInHandle = SystemTableInfo->ConInHandle; | |
| } | |
| if (gST->ConOut != SystemTableInfo->ConOut) { | |
| CloseSimpleTextOutOnFile(gST->ConOut); | |
| gST->ConOut = SystemTableInfo->ConOut; | |
| gST->ConsoleOutHandle = SystemTableInfo->ConOutHandle; | |
| } | |
| if (gST->StdErr != SystemTableInfo->ErrOut) { | |
| CloseSimpleTextOutOnFile(gST->StdErr); | |
| gST->StdErr = SystemTableInfo->ErrOut; | |
| gST->StandardErrorHandle = SystemTableInfo->ErrOutHandle; | |
| } | |
| CalculateEfiHdrCrc(&gST->Hdr); | |
| return (EFI_SUCCESS); | |
| } | |
| /** | |
| Funcion will replace the current Argc and Argv in the ShellParameters protocol | |
| structure by parsing NewCommandLine. The current values are returned to the | |
| user. | |
| If OldArgv or OldArgc is NULL then that value is not returned. | |
| @param[in, out] ShellParameters Pointer to parameter structure to modify. | |
| @param[in] NewCommandLine The new command line to parse and use. | |
| @param[in] Type The type of operation. | |
| @param[out] OldArgv Pointer to old list of parameters. | |
| @param[out] OldArgc Pointer to old number of items in Argv list. | |
| @retval EFI_SUCCESS Operation was sucessful, Argv and Argc are valid. | |
| @retval EFI_OUT_OF_RESOURCES A memory allocation failed. | |
| **/ | |
| EFI_STATUS | |
| UpdateArgcArgv( | |
| IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *ShellParameters, | |
| IN CONST CHAR16 *NewCommandLine, | |
| IN SHELL_OPERATION_TYPES Type, | |
| OUT CHAR16 ***OldArgv OPTIONAL, | |
| OUT UINTN *OldArgc OPTIONAL | |
| ) | |
| { | |
| BOOLEAN StripParamQuotation; | |
| ASSERT(ShellParameters != NULL); | |
| StripParamQuotation = TRUE; | |
| if (OldArgc != NULL) { | |
| *OldArgc = ShellParameters->Argc; | |
| } | |
| if (OldArgc != NULL) { | |
| *OldArgv = ShellParameters->Argv; | |
| } | |
| if (Type == Script_File_Name) { | |
| StripParamQuotation = FALSE; | |
| } | |
| return ParseCommandLineToArgs( NewCommandLine, | |
| StripParamQuotation, | |
| &(ShellParameters->Argv), | |
| &(ShellParameters->Argc) | |
| ); | |
| } | |
| /** | |
| Funcion will replace the current Argc and Argv in the ShellParameters protocol | |
| structure with Argv and Argc. The current values are de-allocated and the | |
| OldArgv must not be deallocated by the caller. | |
| @param[in, out] ShellParameters pointer to parameter structure to modify | |
| @param[in] OldArgv pointer to old list of parameters | |
| @param[in] OldArgc pointer to old number of items in Argv list | |
| **/ | |
| VOID | |
| RestoreArgcArgv( | |
| IN OUT EFI_SHELL_PARAMETERS_PROTOCOL *ShellParameters, | |
| IN CHAR16 ***OldArgv, | |
| IN UINTN *OldArgc | |
| ) | |
| { | |
| UINTN LoopCounter; | |
| ASSERT(ShellParameters != NULL); | |
| ASSERT(OldArgv != NULL); | |
| ASSERT(OldArgc != NULL); | |
| if (ShellParameters->Argv != NULL) { | |
| for ( LoopCounter = 0 | |
| ; LoopCounter < ShellParameters->Argc | |
| ; LoopCounter++ | |
| ){ | |
| FreePool(ShellParameters->Argv[LoopCounter]); | |
| } | |
| FreePool(ShellParameters->Argv); | |
| } | |
| ShellParameters->Argv = *OldArgv; | |
| *OldArgv = NULL; | |
| ShellParameters->Argc = *OldArgc; | |
| *OldArgc = 0; | |
| } |