2c2c68b9d3
MAX_FILE_NAME_LEN and FIND_XXXXX_FILE_BUFFER_SIZE are not used by ShellLib so remove them. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
1406 lines
52 KiB
C
1406 lines
52 KiB
C
/** @file
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Provides interface to shell functionality for shell commands and applications.
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Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
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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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#ifndef __SHELL_LIB__
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#define __SHELL_LIB__
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#include <Uefi.h>
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#include <Guid/FileInfo.h>
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#include <Protocol/SimpleFileSystem.h>
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#include <Protocol/LoadedImage.h>
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#include <Protocol/EfiShellInterface.h>
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#include <Protocol/EfiShellEnvironment2.h>
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#include <Protocol/Shell.h>
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#include <Protocol/ShellParameters.h>
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#define SHELL_FREE_NON_NULL(Pointer) \
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do { \
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if ((Pointer) != NULL) { \
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FreePool((Pointer)); \
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(Pointer) = NULL; \
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} \
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} while(FALSE)
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extern EFI_SHELL_PARAMETERS_PROTOCOL *gEfiShellParametersProtocol;
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extern EFI_SHELL_PROTOCOL *gEfiShellProtocol;
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/**
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This function will retrieve the information about the file for the handle
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specified and store it in allocated pool memory.
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This function allocates a buffer to store the file's information. It is the
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caller's responsibility to free the buffer.
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@param[in] FileHandle The file handle of the file for which information is
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being requested.
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@retval NULL Information could not be retrieved.
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@return The information about the file.
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**/
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EFI_FILE_INFO*
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EFIAPI
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ShellGetFileInfo (
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IN SHELL_FILE_HANDLE FileHandle
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);
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/**
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This function sets the information about the file for the opened handle
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specified.
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@param[in] FileHandle The file handle of the file for which information
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is being set.
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@param[in] FileInfo The information to set.
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@retval EFI_SUCCESS The information was set.
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@retval EFI_INVALID_PARAMETER A parameter was out of range or invalid.
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@retval EFI_UNSUPPORTED The FileHandle does not support FileInfo.
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@retval EFI_NO_MEDIA The device has no medium.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
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@retval EFI_WRITE_PROTECTED The file or medium is write protected.
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@retval EFI_ACCESS_DENIED The file was opened read only.
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@retval EFI_VOLUME_FULL The volume is full.
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**/
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EFI_STATUS
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EFIAPI
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ShellSetFileInfo (
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IN SHELL_FILE_HANDLE FileHandle,
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IN EFI_FILE_INFO *FileInfo
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);
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/**
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This function will open a file or directory referenced by DevicePath.
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This function opens a file with the open mode according to the file path. The
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Attributes is valid only for EFI_FILE_MODE_CREATE.
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@param[in, out] FilePath On input, the device path to the file. On output,
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the remaining device path.
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@param[out] DeviceHandle Pointer to the system device handle.
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@param[out] FileHandle Pointer to the file handle.
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@param[in] OpenMode The mode to open the file with.
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@param[in] Attributes The file's file attributes.
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@retval EFI_SUCCESS The information was set.
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@retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
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@retval EFI_UNSUPPORTED Could not open the file path.
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@retval EFI_NOT_FOUND The specified file could not be found on the
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device or the file system could not be found on
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the device.
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@retval EFI_NO_MEDIA The device has no medium.
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@retval EFI_MEDIA_CHANGED The device has a different medium in it or the
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medium is no longer supported.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
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@retval EFI_WRITE_PROTECTED The file or medium is write protected.
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@retval EFI_ACCESS_DENIED The file was opened read only.
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@retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the
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file.
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@retval EFI_VOLUME_FULL The volume is full.
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**/
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EFI_STATUS
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EFIAPI
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ShellOpenFileByDevicePath(
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IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath,
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OUT EFI_HANDLE *DeviceHandle,
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OUT SHELL_FILE_HANDLE *FileHandle,
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IN UINT64 OpenMode,
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IN UINT64 Attributes
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);
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/**
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This function will open a file or directory referenced by filename.
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If return is EFI_SUCCESS, the Filehandle is the opened file's handle;
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otherwise, the Filehandle is NULL. Attributes is valid only for
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EFI_FILE_MODE_CREATE.
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@param[in] FilePath The pointer to file name.
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@param[out] FileHandle The pointer to the file handle.
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@param[in] OpenMode The mode to open the file with.
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@param[in] Attributes The file's file attributes.
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@retval EFI_SUCCESS The information was set.
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@retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
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@retval EFI_UNSUPPORTED Could not open the file path.
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@retval EFI_NOT_FOUND The specified file could not be found on the
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device or the file system could not be found
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on the device.
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@retval EFI_NO_MEDIA The device has no medium.
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@retval EFI_MEDIA_CHANGED The device has a different medium in it or the
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medium is no longer supported.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
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@retval EFI_WRITE_PROTECTED The file or medium is write protected.
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@retval EFI_ACCESS_DENIED The file was opened read only.
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@retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the
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file.
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@retval EFI_VOLUME_FULL The volume is full.
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**/
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EFI_STATUS
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EFIAPI
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ShellOpenFileByName(
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IN CONST CHAR16 *FilePath,
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OUT SHELL_FILE_HANDLE *FileHandle,
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IN UINT64 OpenMode,
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IN UINT64 Attributes
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);
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/**
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This function creates a directory.
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If return is EFI_SUCCESS, the Filehandle is the opened directory's handle;
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otherwise, the Filehandle is NULL. If the directory already existed, this
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function opens the existing directory.
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@param[in] DirectoryName The pointer to Directory name.
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@param[out] FileHandle The pointer to the file handle.
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@retval EFI_SUCCESS The information was set.
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@retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
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@retval EFI_UNSUPPORTED Could not open the file path.
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@retval EFI_NOT_FOUND The specified file could not be found on the
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device, or the file system could not be found
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on the device.
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@retval EFI_NO_MEDIA The device has no medium.
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@retval EFI_MEDIA_CHANGED The device has a different medium in it or the
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medium is no longer supported.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
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@retval EFI_WRITE_PROTECTED The file or medium is write protected.
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@retval EFI_ACCESS_DENIED The file was opened read only.
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@retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the
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file.
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@retval EFI_VOLUME_FULL The volume is full.
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**/
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EFI_STATUS
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EFIAPI
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ShellCreateDirectory(
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IN CONST CHAR16 *DirectoryName,
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OUT SHELL_FILE_HANDLE *FileHandle
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);
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/**
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This function reads information from an opened file.
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If FileHandle is not a directory, the function reads the requested number of
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bytes from the file at the file's current position and returns them in Buffer.
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If the read goes beyond the end of the file, the read length is truncated to the
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end of the file. The file's current position is increased by the number of bytes
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returned. If FileHandle is a directory, the function reads the directory entry
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at the file's current position and returns the entry in Buffer. If the Buffer
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is not large enough to hold the current directory entry, then
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EFI_BUFFER_TOO_SMALL is returned and the current file position is not updated.
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BufferSize is set to be the size of the buffer needed to read the entry. On
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success, the current position is updated to the next directory entry. If there
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are no more directory entries, the read returns a zero-length buffer.
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EFI_FILE_INFO is the structure returned as the directory entry.
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@param[in] FileHandle The opened file handle.
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@param[in, out] ReadSize On input the size of buffer in bytes. On return
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the number of bytes written.
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@param[out] Buffer The buffer to put read data into.
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@retval EFI_SUCCESS Data was read.
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@retval EFI_NO_MEDIA The device has no media.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
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@retval EFI_BUFFER_TO_SMALL Buffer is too small. ReadSize contains required
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size.
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**/
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EFI_STATUS
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EFIAPI
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ShellReadFile(
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IN SHELL_FILE_HANDLE FileHandle,
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IN OUT UINTN *ReadSize,
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OUT VOID *Buffer
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);
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/**
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Write data to a file.
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This function writes the specified number of bytes to the file at the current
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file position. The current file position is advanced the actual number of bytes
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written, which is returned in BufferSize. Partial writes only occur when there
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has been a data error during the write attempt (such as "volume space full").
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The file is automatically grown to hold the data if required. Direct writes to
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opened directories are not supported.
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@param[in] FileHandle The opened file for writing.
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@param[in, out] BufferSize On input the number of bytes in Buffer. On output
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the number of bytes written.
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@param[in] Buffer The buffer containing data to write is stored.
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@retval EFI_SUCCESS Data was written.
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@retval EFI_UNSUPPORTED Writes to an open directory are not supported.
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@retval EFI_NO_MEDIA The device has no media.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
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@retval EFI_WRITE_PROTECTED The device is write-protected.
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@retval EFI_ACCESS_DENIED The file was open for read only.
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@retval EFI_VOLUME_FULL The volume is full.
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**/
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EFI_STATUS
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EFIAPI
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ShellWriteFile(
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IN SHELL_FILE_HANDLE FileHandle,
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IN OUT UINTN *BufferSize,
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IN VOID *Buffer
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);
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/**
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Close an open file handle.
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This function closes a specified file handle. All "dirty" cached file data is
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flushed to the device, and the file is closed. In all cases the handle is
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closed.
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@param[in] FileHandle The file handle to close.
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@retval EFI_SUCCESS The file handle was closed sucessfully.
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@retval INVALID_PARAMETER One of the parameters has an invalid value.
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**/
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EFI_STATUS
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EFIAPI
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ShellCloseFile (
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IN SHELL_FILE_HANDLE *FileHandle
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);
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/**
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Delete a file and close the handle
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This function closes and deletes a file. In all cases the file handle is closed.
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If the file cannot be deleted, the warning code EFI_WARN_DELETE_FAILURE is
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returned, but the handle is still closed.
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@param[in] FileHandle The file handle to delete.
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@retval EFI_SUCCESS The file was closed sucessfully.
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@retval EFI_WARN_DELETE_FAILURE The handle was closed, but the file was not
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deleted.
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@retval INVALID_PARAMETER One of the parameters has an invalid value.
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**/
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EFI_STATUS
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EFIAPI
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ShellDeleteFile (
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IN SHELL_FILE_HANDLE *FileHandle
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);
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/**
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Set the current position in a file.
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This function sets the current file position for the handle to the position
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supplied. With the exception of seeking to position 0xFFFFFFFFFFFFFFFF, only
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absolute positioning is supported, and moving past the end of the file is
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allowed (a subsequent write would grow the file). Moving to position
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0xFFFFFFFFFFFFFFFF causes the current position to be set to the end of the file.
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If FileHandle is a directory, the only position that may be set is zero. This
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has the effect of starting the read process of the directory entries over.
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@param[in] FileHandle The file handle on which the position is being set.
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@param[in] Position The byte position from the begining of the file.
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@retval EFI_SUCCESS Operation completed sucessfully.
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@retval EFI_UNSUPPORTED The seek request for non-zero is not valid on
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directories.
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@retval INVALID_PARAMETER One of the parameters has an invalid value.
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**/
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EFI_STATUS
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EFIAPI
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ShellSetFilePosition (
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IN SHELL_FILE_HANDLE FileHandle,
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IN UINT64 Position
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);
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/**
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Gets a file's current position
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This function retrieves the current file position for the file handle. For
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directories, the current file position has no meaning outside of the file
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system driver and as such the operation is not supported. An error is returned
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if FileHandle is a directory.
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@param[in] FileHandle The open file handle on which to get the position.
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@param[out] Position The byte position from the begining of the file.
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@retval EFI_SUCCESS The operation completed sucessfully.
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@retval INVALID_PARAMETER One of the parameters has an invalid value.
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@retval EFI_UNSUPPORTED The request is not valid on directories.
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**/
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EFI_STATUS
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EFIAPI
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ShellGetFilePosition (
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IN SHELL_FILE_HANDLE FileHandle,
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OUT UINT64 *Position
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);
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/**
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Flushes data on a file
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This function flushes all modified data associated with a file to a device.
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@param[in] FileHandle The file handle on which to flush data.
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@retval EFI_SUCCESS The data was flushed.
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@retval EFI_NO_MEDIA The device has no media.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
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@retval EFI_WRITE_PROTECTED The file or medium is write protected.
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@retval EFI_ACCESS_DENIED The file was opened for read only.
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**/
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EFI_STATUS
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EFIAPI
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ShellFlushFile (
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IN SHELL_FILE_HANDLE FileHandle
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);
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/** Retrieve first entry from a directory.
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This function takes an open directory handle and gets information from the
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first entry in the directory. A buffer is allocated to contain
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the information and a pointer to the buffer is returned in *Buffer. The
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caller can use ShellFindNextFile() to get subsequent directory entries.
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The buffer will be freed by ShellFindNextFile() when the last directory
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entry is read. Otherwise, the caller must free the buffer, using FreePool,
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when finished with it.
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@param[in] DirHandle The file handle of the directory to search.
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@param[out] Buffer The pointer to the buffer for the file's information.
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@retval EFI_SUCCESS Found the first file.
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@retval EFI_NOT_FOUND Cannot find the directory.
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@retval EFI_NO_MEDIA The device has no media.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
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@return Others Status of ShellGetFileInfo, ShellSetFilePosition,
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or ShellReadFile.
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@sa ShellReadFile
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**/
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EFI_STATUS
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EFIAPI
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ShellFindFirstFile (
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IN SHELL_FILE_HANDLE DirHandle,
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OUT EFI_FILE_INFO **Buffer
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);
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/** Retrieve next entries from a directory.
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To use this function, the caller must first call the ShellFindFirstFile()
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function to get the first directory entry. Subsequent directory entries are
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retrieved by using the ShellFindNextFile() function. This function can
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be called several times to get each entry from the directory. If the call of
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ShellFindNextFile() retrieved the last directory entry, the next call of
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this function will set *NoFile to TRUE and free the buffer.
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@param[in] DirHandle The file handle of the directory.
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@param[in, out] Buffer The pointer to buffer for file's information.
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@param[in, out] NoFile The pointer to boolean when last file is found.
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@retval EFI_SUCCESS Found the next file.
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@retval EFI_NO_MEDIA The device has no media.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
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@sa ShellReadFile
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**/
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EFI_STATUS
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EFIAPI
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ShellFindNextFile(
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IN SHELL_FILE_HANDLE DirHandle,
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IN OUT EFI_FILE_INFO *Buffer,
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IN OUT BOOLEAN *NoFile
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);
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/**
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Retrieve the size of a file.
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This function extracts the file size info from the FileHandle's EFI_FILE_INFO
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data.
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@param[in] FileHandle The file handle from which size is retrieved.
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@param[out] Size The pointer to size.
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@retval EFI_SUCCESS The operation was completed sucessfully.
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@retval EFI_DEVICE_ERROR Cannot access the file.
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**/
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EFI_STATUS
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EFIAPI
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ShellGetFileSize (
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IN SHELL_FILE_HANDLE FileHandle,
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OUT UINT64 *Size
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);
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/**
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Retrieves the status of the break execution flag
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This function is useful to check whether the application is being asked to halt by the shell.
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@retval TRUE The execution break is enabled.
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@retval FALSE The execution break is not enabled.
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**/
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BOOLEAN
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EFIAPI
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ShellGetExecutionBreakFlag(
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VOID
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);
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/**
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Return the value of an environment variable.
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This function gets the value of the environment variable set by the
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ShellSetEnvironmentVariable function.
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@param[in] EnvKey The key name of the environment variable.
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@retval NULL The named environment variable does not exist.
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@return != NULL The pointer to the value of the environment variable.
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**/
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CONST CHAR16*
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EFIAPI
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ShellGetEnvironmentVariable (
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IN CONST CHAR16 *EnvKey
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);
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/**
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Set the value of an environment variable.
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This function changes the current value of the specified environment variable. If the
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environment variable exists and the Value is an empty string, then the environment
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variable is deleted. If the environment variable exists and the Value is not an empty
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string, then the value of the environment variable is changed. If the environment
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variable does not exist and the Value is an empty string, there is no action. If the
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environment variable does not exist and the Value is a non-empty string, then the
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environment variable is created and assigned the specified value.
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This is not supported pre-UEFI Shell 2.0.
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@param[in] EnvKey The key name of the environment variable.
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@param[in] EnvVal The Value of the environment variable
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@param[in] Volatile Indicates whether the variable is non-volatile (FALSE) or volatile (TRUE).
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|
|
@retval EFI_SUCCESS The operation completed sucessfully
|
|
@retval EFI_UNSUPPORTED This operation is not allowed in pre-UEFI 2.0 Shell environments.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellSetEnvironmentVariable (
|
|
IN CONST CHAR16 *EnvKey,
|
|
IN CONST CHAR16 *EnvVal,
|
|
IN BOOLEAN Volatile
|
|
);
|
|
|
|
/**
|
|
Cause the shell to parse and execute a command line.
|
|
|
|
This function creates a nested instance of the shell and executes the specified
|
|
command (CommandLine) with the specified environment (Environment). Upon return,
|
|
the status code returned by the specified command is placed in StatusCode.
|
|
If Environment is NULL, then the current environment is used and all changes made
|
|
by the commands executed will be reflected in the current environment. If the
|
|
Environment is non-NULL, then the changes made will be discarded.
|
|
The CommandLine is executed from the current working directory on the current
|
|
device.
|
|
|
|
The EnvironmentVariables and Status parameters are ignored in a pre-UEFI Shell 2.0
|
|
environment. The values pointed to by the parameters will be unchanged by the
|
|
ShellExecute() function. The Output parameter has no effect in a
|
|
UEFI Shell 2.0 environment.
|
|
|
|
@param[in] ParentHandle The parent image starting the operation.
|
|
@param[in] CommandLine The pointer to a NULL terminated command line.
|
|
@param[in] Output True to display debug output. False to hide it.
|
|
@param[in] EnvironmentVariables Optional pointer to array of environment variables
|
|
in the form "x=y". If NULL, the current set is used.
|
|
@param[out] Status The status of the run command line.
|
|
|
|
@retval EFI_SUCCESS The operation completed sucessfully. Status
|
|
contains the status code returned.
|
|
@retval EFI_INVALID_PARAMETER A parameter contains an invalid value.
|
|
@retval EFI_OUT_OF_RESOURCES Out of resources.
|
|
@retval EFI_UNSUPPORTED The operation is not allowed.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellExecute (
|
|
IN EFI_HANDLE *ParentHandle,
|
|
IN CHAR16 *CommandLine,
|
|
IN BOOLEAN Output,
|
|
IN CHAR16 **EnvironmentVariables,
|
|
OUT EFI_STATUS *Status
|
|
);
|
|
|
|
/**
|
|
Retreives the current directory path.
|
|
|
|
If the DeviceName is NULL, it returns the current device's current directory
|
|
name. If the DeviceName is not NULL, it returns the current directory name
|
|
on specified drive.
|
|
|
|
Note that the current directory string should exclude the tailing backslash character.
|
|
|
|
@param[in] DeviceName The name of the file system to get directory on.
|
|
|
|
@retval NULL The directory does not exist.
|
|
@retval != NULL The directory.
|
|
**/
|
|
CONST CHAR16*
|
|
EFIAPI
|
|
ShellGetCurrentDir (
|
|
IN CHAR16 * CONST DeviceName OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Sets (enabled or disabled) the page break mode.
|
|
|
|
When page break mode is enabled the screen will stop scrolling
|
|
and wait for operator input before scrolling a subsequent screen.
|
|
|
|
@param[in] CurrentState TRUE to enable and FALSE to disable.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
ShellSetPageBreakMode (
|
|
IN BOOLEAN CurrentState
|
|
);
|
|
|
|
/**
|
|
Opens a group of files based on a path.
|
|
|
|
This function uses the Arg to open all the matching files. Each matched
|
|
file has a SHELL_FILE_ARG structure to record the file information. These
|
|
structures are placed on the list ListHead. Users can get the SHELL_FILE_ARG
|
|
structures from ListHead to access each file. This function supports wildcards
|
|
and will process '?' and '*' as such. The list must be freed with a call to
|
|
ShellCloseFileMetaArg().
|
|
|
|
If you are NOT appending to an existing list *ListHead must be NULL. If
|
|
*ListHead is NULL then it must be callee freed.
|
|
|
|
@param[in] Arg The pointer to path string.
|
|
@param[in] OpenMode Mode to open files with.
|
|
@param[in, out] ListHead Head of linked list of results.
|
|
|
|
@retval EFI_SUCCESS The operation was sucessful and the list head
|
|
contains the list of opened files.
|
|
@retval != EFI_SUCCESS The operation failed.
|
|
|
|
@sa InternalShellConvertFileListType
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellOpenFileMetaArg (
|
|
IN CHAR16 *Arg,
|
|
IN UINT64 OpenMode,
|
|
IN OUT EFI_SHELL_FILE_INFO **ListHead
|
|
);
|
|
|
|
/**
|
|
Free the linked list returned from ShellOpenFileMetaArg.
|
|
|
|
@param[in, out] ListHead The pointer to free.
|
|
|
|
@retval EFI_SUCCESS The operation was sucessful.
|
|
@retval EFI_INVALID_PARAMETER A parameter was invalid.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellCloseFileMetaArg (
|
|
IN OUT EFI_SHELL_FILE_INFO **ListHead
|
|
);
|
|
|
|
/**
|
|
Find a file by searching the CWD and then the path.
|
|
|
|
If FileName is NULL, then ASSERT.
|
|
|
|
If the return value is not NULL then the memory must be caller freed.
|
|
|
|
@param[in] FileName Filename string.
|
|
|
|
@retval NULL The file was not found.
|
|
@retval !NULL The path to the file.
|
|
**/
|
|
CHAR16 *
|
|
EFIAPI
|
|
ShellFindFilePath (
|
|
IN CONST CHAR16 *FileName
|
|
);
|
|
|
|
/**
|
|
Find a file by searching the CWD and then the path with a variable set of file
|
|
extensions. If the file is not found it will append each extension in the list
|
|
in the order provided and return the first one that is successful.
|
|
|
|
If FileName is NULL, then ASSERT.
|
|
If FileExtension is NULL, then the behavior is identical to ShellFindFilePath.
|
|
|
|
If the return value is not NULL then the memory must be caller freed.
|
|
|
|
@param[in] FileName The filename string.
|
|
@param[in] FileExtension Semicolon delimited list of possible extensions.
|
|
|
|
@retval NULL The file was not found.
|
|
@retval !NULL The path to the file.
|
|
**/
|
|
CHAR16 *
|
|
EFIAPI
|
|
ShellFindFilePathEx (
|
|
IN CONST CHAR16 *FileName,
|
|
IN CONST CHAR16 *FileExtension
|
|
);
|
|
|
|
typedef enum {
|
|
TypeFlag = 0, ///< A flag that is present or not present only (IE "-a").
|
|
TypeValue, ///< A flag that has some data following it with a space (IE "-a 1").
|
|
TypePosition, ///< Some data that did not follow a parameter (IE "filename.txt").
|
|
TypeStart, ///< A flag that has variable value appended to the end (IE "-ad", "-afd", "-adf", etc...).
|
|
TypeDoubleValue, ///< A flag that has 2 space seperated value data following it (IE "-a 1 2").
|
|
TypeMaxValue, ///< A flag followed by all the command line data before the next flag.
|
|
TypeTimeValue, ///< A flag that has a time value following it (IE "-a -5:00").
|
|
TypeMax,
|
|
} SHELL_PARAM_TYPE;
|
|
|
|
typedef struct {
|
|
CHAR16 *Name;
|
|
SHELL_PARAM_TYPE Type;
|
|
} SHELL_PARAM_ITEM;
|
|
|
|
|
|
/// Helper structure for no parameters (besides -? and -b)
|
|
extern SHELL_PARAM_ITEM EmptyParamList[];
|
|
|
|
/// Helper structure for -sfo only (besides -? and -b)
|
|
extern SHELL_PARAM_ITEM SfoParamList[];
|
|
|
|
/**
|
|
Checks the command line arguments passed against the list of valid ones.
|
|
Optionally removes NULL values first.
|
|
|
|
If no initialization is required, then return RETURN_SUCCESS.
|
|
|
|
@param[in] CheckList The pointer to list of parameters to check.
|
|
@param[out] CheckPackage The package of checked values.
|
|
@param[out] ProblemParam Optional pointer to pointer to unicode string for
|
|
the paramater that caused failure.
|
|
@param[in] AutoPageBreak Will automatically set PageBreakEnabled.
|
|
@param[in] AlwaysAllowNumbers Will never fail for number based flags.
|
|
|
|
@retval EFI_SUCCESS The operation completed sucessfully.
|
|
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
|
|
@retval EFI_INVALID_PARAMETER A parameter was invalid.
|
|
@retval EFI_VOLUME_CORRUPTED The command line was corrupt.
|
|
@retval EFI_DEVICE_ERROR The commands contained 2 opposing arguments. One
|
|
of the command line arguments was returned in
|
|
ProblemParam if provided.
|
|
@retval EFI_NOT_FOUND A argument required a value that was missing.
|
|
The invalid command line argument was returned in
|
|
ProblemParam if provided.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellCommandLineParseEx (
|
|
IN CONST SHELL_PARAM_ITEM *CheckList,
|
|
OUT LIST_ENTRY **CheckPackage,
|
|
OUT CHAR16 **ProblemParam OPTIONAL,
|
|
IN BOOLEAN AutoPageBreak,
|
|
IN BOOLEAN AlwaysAllowNumbers
|
|
);
|
|
|
|
/// Make it easy to upgrade from older versions of the shell library.
|
|
#define ShellCommandLineParse(CheckList,CheckPackage,ProblemParam,AutoPageBreak) ShellCommandLineParseEx(CheckList,CheckPackage,ProblemParam,AutoPageBreak,FALSE)
|
|
|
|
/**
|
|
Frees shell variable list that was returned from ShellCommandLineParse.
|
|
|
|
This function will free all the memory that was used for the CheckPackage
|
|
list of postprocessed shell arguments.
|
|
|
|
If CheckPackage is NULL, then return.
|
|
|
|
@param[in] CheckPackage The list to de-allocate.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
ShellCommandLineFreeVarList (
|
|
IN LIST_ENTRY *CheckPackage
|
|
);
|
|
|
|
/**
|
|
Checks for presence of a flag parameter.
|
|
|
|
Flag arguments are in the form of "-<Key>" or "/<Key>", but do not have a value following the key.
|
|
|
|
If CheckPackage is NULL then return FALSE.
|
|
If KeyString is NULL then ASSERT().
|
|
|
|
@param[in] CheckPackage The package of parsed command line arguments.
|
|
@param[in] KeyString The Key of the command line argument to check for.
|
|
|
|
@retval TRUE The flag is on the command line.
|
|
@retval FALSE The flag is not on the command line.
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
ShellCommandLineGetFlag (
|
|
IN CONST LIST_ENTRY * CONST CheckPackage,
|
|
IN CONST CHAR16 * CONST KeyString
|
|
);
|
|
|
|
/**
|
|
Returns value from command line argument.
|
|
|
|
Value parameters are in the form of "-<Key> value" or "/<Key> value".
|
|
|
|
If CheckPackage is NULL, then return NULL.
|
|
|
|
@param[in] CheckPackage The package of parsed command line arguments.
|
|
@param[in] KeyString The Key of the command line argument to check for.
|
|
|
|
@retval NULL The flag is not on the command line.
|
|
@retval !=NULL The pointer to unicode string of the value.
|
|
**/
|
|
CONST CHAR16*
|
|
EFIAPI
|
|
ShellCommandLineGetValue (
|
|
IN CONST LIST_ENTRY *CheckPackage,
|
|
IN CHAR16 *KeyString
|
|
);
|
|
|
|
/**
|
|
Returns raw value from command line argument.
|
|
|
|
Raw value parameters are in the form of "value" in a specific position in the list.
|
|
|
|
If CheckPackage is NULL, then return NULL.
|
|
|
|
@param[in] CheckPackage The package of parsed command line arguments.
|
|
@param[in] Position The position of the value.
|
|
|
|
@retval NULL The flag is not on the command line.
|
|
@retval !=NULL The pointer to unicode string of the value.
|
|
**/
|
|
CONST CHAR16*
|
|
EFIAPI
|
|
ShellCommandLineGetRawValue (
|
|
IN CONST LIST_ENTRY * CONST CheckPackage,
|
|
IN UINTN Position
|
|
);
|
|
|
|
/**
|
|
Returns the number of command line value parameters that were parsed.
|
|
|
|
This will not include flags.
|
|
|
|
@param[in] CheckPackage The package of parsed command line arguments.
|
|
|
|
@retval (UINTN)-1 No parsing has occurred.
|
|
@retval other The number of value parameters found.
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
ShellCommandLineGetCount(
|
|
IN CONST LIST_ENTRY *CheckPackage
|
|
);
|
|
|
|
/**
|
|
Determines if a parameter is duplicated.
|
|
|
|
If Param is not NULL, then it will point to a callee-allocated string buffer
|
|
with the parameter value, if a duplicate is found.
|
|
|
|
If CheckPackage is NULL, then ASSERT.
|
|
|
|
@param[in] CheckPackage The package of parsed command line arguments.
|
|
@param[out] Param Upon finding one, a pointer to the duplicated parameter.
|
|
|
|
@retval EFI_SUCCESS No parameters were duplicated.
|
|
@retval EFI_DEVICE_ERROR A duplicate was found.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellCommandLineCheckDuplicate (
|
|
IN CONST LIST_ENTRY *CheckPackage,
|
|
OUT CHAR16 **Param
|
|
);
|
|
|
|
/**
|
|
This function causes the shell library to initialize itself. If the shell library
|
|
is already initialized it will de-initialize all the current protocol pointers and
|
|
re-populate them again.
|
|
|
|
When the library is used with PcdShellLibAutoInitialize set to true this function
|
|
will return EFI_SUCCESS and perform no actions.
|
|
|
|
This function is intended for internal access for shell commands only.
|
|
|
|
@retval EFI_SUCCESS The initialization was complete sucessfully.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellInitialize (
|
|
VOID
|
|
);
|
|
|
|
/**
|
|
Print at a specific location on the screen.
|
|
|
|
This function will move the cursor to a given screen location and print the specified string.
|
|
|
|
If -1 is specified for either the Row or Col the current screen location for BOTH
|
|
will be used.
|
|
|
|
If either Row or Col is out of range for the current console, then ASSERT.
|
|
If Format is NULL, then ASSERT.
|
|
|
|
In addition to the standard %-based flags as supported by UefiLib Print() this supports
|
|
the following additional flags:
|
|
%N - Set output attribute to normal
|
|
%H - Set output attribute to highlight
|
|
%E - Set output attribute to error
|
|
%B - Set output attribute to blue color
|
|
%V - Set output attribute to green color
|
|
|
|
Note: The background color is controlled by the shell command cls.
|
|
|
|
@param[in] Col The column to print at.
|
|
@param[in] Row The row to print at.
|
|
@param[in] Format The format string.
|
|
@param[in] ... The variable argument list.
|
|
|
|
@return EFI_SUCCESS The printing was successful.
|
|
@return EFI_DEVICE_ERROR The console device reported an error.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellPrintEx(
|
|
IN INT32 Col OPTIONAL,
|
|
IN INT32 Row OPTIONAL,
|
|
IN CONST CHAR16 *Format,
|
|
...
|
|
);
|
|
|
|
/**
|
|
Print at a specific location on the screen.
|
|
|
|
This function will move the cursor to a given screen location and print the specified string.
|
|
|
|
If -1 is specified for either the Row or Col the current screen location for BOTH
|
|
will be used.
|
|
|
|
If either Row or Col is out of range for the current console, then ASSERT.
|
|
If Format is NULL, then ASSERT.
|
|
|
|
In addition to the standard %-based flags as supported by UefiLib Print() this supports
|
|
the following additional flags:
|
|
%N - Set output attribute to normal.
|
|
%H - Set output attribute to highlight.
|
|
%E - Set output attribute to error.
|
|
%B - Set output attribute to blue color.
|
|
%V - Set output attribute to green color.
|
|
|
|
Note: The background color is controlled by the shell command cls.
|
|
|
|
@param[in] Col The column to print at.
|
|
@param[in] Row The row to print at.
|
|
@param[in] Language The language of the string to retrieve. If this parameter
|
|
is NULL, then the current platform language is used.
|
|
@param[in] HiiFormatStringId The format string Id for getting from Hii.
|
|
@param[in] HiiFormatHandle The format string Handle for getting from Hii.
|
|
@param[in] ... The variable argument list.
|
|
|
|
@return EFI_SUCCESS The printing was successful.
|
|
@return EFI_DEVICE_ERROR The console device reported an error.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellPrintHiiEx(
|
|
IN INT32 Col OPTIONAL,
|
|
IN INT32 Row OPTIONAL,
|
|
IN CONST CHAR8 *Language OPTIONAL,
|
|
IN CONST EFI_STRING_ID HiiFormatStringId,
|
|
IN CONST EFI_HANDLE HiiFormatHandle,
|
|
...
|
|
);
|
|
|
|
/**
|
|
Function to determine if a given filename represents a directory.
|
|
|
|
If DirName is NULL, then ASSERT.
|
|
|
|
@param[in] DirName Path to directory to test.
|
|
|
|
@retval EFI_SUCCESS The Path represents a directory.
|
|
@retval EFI_NOT_FOUND The Path does not represent a directory.
|
|
@retval other The path failed to open.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellIsDirectory(
|
|
IN CONST CHAR16 *DirName
|
|
);
|
|
|
|
/**
|
|
Function to determine if a given filename represents a file.
|
|
|
|
This will search the CWD only.
|
|
|
|
If Name is NULL, then ASSERT.
|
|
|
|
@param[in] Name Path to file to test.
|
|
|
|
@retval EFI_SUCCESS The Path represents a file.
|
|
@retval EFI_NOT_FOUND The Path does not represent a file.
|
|
@retval other The path failed to open.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellIsFile(
|
|
IN CONST CHAR16 *Name
|
|
);
|
|
|
|
/**
|
|
Function to determine if a given filename represents a file.
|
|
|
|
This will search the CWD and then the Path.
|
|
|
|
If Name is NULL, then ASSERT.
|
|
|
|
@param[in] Name Path to file to test.
|
|
|
|
@retval EFI_SUCCESS The Path represents a file.
|
|
@retval EFI_NOT_FOUND The Path does not represent a file.
|
|
@retval other The path failed to open.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellIsFileInPath(
|
|
IN CONST CHAR16 *Name
|
|
);
|
|
|
|
/**
|
|
Function to determine whether a string is decimal or hex representation of a number
|
|
and return the number converted from the string.
|
|
|
|
Note: this function cannot be used when (UINTN)(-1), (0xFFFFFFFF) may be a valid
|
|
result. Use ShellConvertStringToUint64 instead.
|
|
|
|
@param[in] String String representation of a number.
|
|
|
|
@return The unsigned integer result of the conversion.
|
|
@retval (UINTN)(-1) An error occured.
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
ShellStrToUintn(
|
|
IN CONST CHAR16 *String
|
|
);
|
|
|
|
/**
|
|
Function return the number converted from a hex representation of a number.
|
|
|
|
Note: this function cannot be used when (UINTN)(-1), (0xFFFFFFFF) may be a valid
|
|
result. Use ShellConvertStringToUint64 instead.
|
|
|
|
@param[in] String String representation of a number.
|
|
|
|
@return The unsigned integer result of the conversion.
|
|
@retval (UINTN)(-1) An error occured.
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
ShellHexStrToUintn(
|
|
IN CONST CHAR16 *String
|
|
);
|
|
|
|
/**
|
|
Safely append with automatic string resizing given length of Destination and
|
|
desired length of copy from Source.
|
|
|
|
Append the first D characters of Source to the end of Destination, where D is
|
|
the lesser of Count and the StrLen() of Source. If appending those D characters
|
|
will fit within Destination (whose Size is given as CurrentSize) and
|
|
still leave room for a NULL terminator, then those characters are appended,
|
|
starting at the original terminating NULL of Destination, and a new terminating
|
|
NULL is appended.
|
|
|
|
If appending D characters onto Destination will result in a overflow of the size
|
|
given in CurrentSize the string will be grown such that the copy can be performed
|
|
and CurrentSize will be updated to the new size.
|
|
|
|
If Source is NULL, there is nothing to append, so return the current buffer in
|
|
Destination.
|
|
|
|
If Destination is NULL, then ASSERT().
|
|
If Destination's current length (including NULL terminator) is already more than
|
|
CurrentSize, then ASSERT().
|
|
|
|
@param[in, out] Destination The String to append onto.
|
|
@param[in, out] CurrentSize On call, the number of bytes in Destination. On
|
|
return, possibly the new size (still in bytes). If NULL,
|
|
then allocate whatever is needed.
|
|
@param[in] Source The String to append from.
|
|
@param[in] Count The maximum number of characters to append. If 0, then
|
|
all are appended.
|
|
|
|
@return The Destination after appending the Source.
|
|
**/
|
|
CHAR16*
|
|
EFIAPI
|
|
StrnCatGrow (
|
|
IN OUT CHAR16 **Destination,
|
|
IN OUT UINTN *CurrentSize,
|
|
IN CONST CHAR16 *Source,
|
|
IN UINTN Count
|
|
);
|
|
|
|
/**
|
|
This is a find and replace function. Upon successful return the NewString is a copy of
|
|
SourceString with each instance of FindTarget replaced with ReplaceWith.
|
|
|
|
If SourceString and NewString overlap the behavior is undefined.
|
|
|
|
If the string would grow bigger than NewSize it will halt and return error.
|
|
|
|
@param[in] SourceString The string with source buffer.
|
|
@param[in, out] NewString The string with resultant buffer.
|
|
@param[in] NewSize The size in bytes of NewString.
|
|
@param[in] FindTarget The string to look for.
|
|
@param[in] ReplaceWith The string to replace FindTarget with.
|
|
@param[in] SkipPreCarrot If TRUE will skip a FindTarget that has a '^'
|
|
immediately before it.
|
|
@param[in] ParameterReplacing If TRUE will add "" around items with spaces.
|
|
|
|
@retval EFI_INVALID_PARAMETER SourceString was NULL.
|
|
@retval EFI_INVALID_PARAMETER NewString was NULL.
|
|
@retval EFI_INVALID_PARAMETER FindTarget was NULL.
|
|
@retval EFI_INVALID_PARAMETER ReplaceWith was NULL.
|
|
@retval EFI_INVALID_PARAMETER FindTarget had length < 1.
|
|
@retval EFI_INVALID_PARAMETER SourceString had length < 1.
|
|
@retval EFI_BUFFER_TOO_SMALL NewSize was less than the minimum size to hold
|
|
the new string (truncation occurred).
|
|
@retval EFI_SUCCESS The string was successfully copied with replacement.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellCopySearchAndReplace(
|
|
IN CHAR16 CONST *SourceString,
|
|
IN OUT CHAR16 *NewString,
|
|
IN UINTN NewSize,
|
|
IN CONST CHAR16 *FindTarget,
|
|
IN CONST CHAR16 *ReplaceWith,
|
|
IN CONST BOOLEAN SkipPreCarrot,
|
|
IN CONST BOOLEAN ParameterReplacing
|
|
);
|
|
|
|
/**
|
|
Check if a Unicode character is a hexadecimal character.
|
|
|
|
This internal function checks if a Unicode character is a
|
|
numeric character. The valid hexadecimal characters are
|
|
L'0' to L'9', L'a' to L'f', or L'A' to L'F'.
|
|
|
|
|
|
@param Char The character to check against.
|
|
|
|
@retval TRUE The Char is a hexadecmial character.
|
|
@retval FALSE The Char is not a hexadecmial character.
|
|
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
ShellIsHexaDecimalDigitCharacter (
|
|
IN CHAR16 Char
|
|
);
|
|
|
|
/**
|
|
Check if a Unicode character is a decimal character.
|
|
|
|
This internal function checks if a Unicode character is a
|
|
decimal character. The valid characters are
|
|
L'0' to L'9'.
|
|
|
|
|
|
@param Char The character to check against.
|
|
|
|
@retval TRUE The Char is a hexadecmial character.
|
|
@retval FALSE The Char is not a hexadecmial character.
|
|
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
ShellIsDecimalDigitCharacter (
|
|
IN CHAR16 Char
|
|
);
|
|
|
|
///
|
|
/// What type of answer is requested.
|
|
///
|
|
typedef enum {
|
|
ShellPromptResponseTypeYesNo,
|
|
ShellPromptResponseTypeYesNoCancel,
|
|
ShellPromptResponseTypeFreeform,
|
|
ShellPromptResponseTypeQuitContinue,
|
|
ShellPromptResponseTypeYesNoAllCancel,
|
|
ShellPromptResponseTypeEnterContinue,
|
|
ShellPromptResponseTypeAnyKeyContinue,
|
|
ShellPromptResponseTypeMax
|
|
} SHELL_PROMPT_REQUEST_TYPE;
|
|
|
|
///
|
|
/// What answer was given.
|
|
///
|
|
typedef enum {
|
|
ShellPromptResponseYes,
|
|
ShellPromptResponseNo,
|
|
ShellPromptResponseCancel,
|
|
ShellPromptResponseQuit,
|
|
ShellPromptResponseContinue,
|
|
ShellPromptResponseAll,
|
|
ShellPromptResponseMax
|
|
} SHELL_PROMPT_RESPONSE;
|
|
|
|
/**
|
|
Prompt the user and return the resultant answer to the requestor.
|
|
|
|
This function will display the requested question on the shell prompt and then
|
|
wait for an appropriate answer to be input from the console.
|
|
|
|
If the SHELL_PROMPT_REQUEST_TYPE is SHELL_PROMPT_REQUEST_TYPE_YESNO, ShellPromptResponseTypeQuitContinue
|
|
or SHELL_PROMPT_REQUEST_TYPE_YESNOCANCEL then *Response is of type SHELL_PROMPT_RESPONSE.
|
|
|
|
If the SHELL_PROMPT_REQUEST_TYPE is ShellPromptResponseTypeFreeform then *Response is of type
|
|
CHAR16*.
|
|
|
|
In either case *Response must be callee freed if Response was not NULL;
|
|
|
|
@param Type What type of question is asked. This is used to filter the input
|
|
to prevent invalid answers to question.
|
|
@param Prompt The pointer to a string prompt used to request input.
|
|
@param Response The pointer to Response, which will be populated upon return.
|
|
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
@retval EFI_UNSUPPORTED The operation is not supported as requested.
|
|
@retval EFI_INVALID_PARAMETER A parameter was invalid.
|
|
@return other The operation failed.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellPromptForResponse (
|
|
IN SHELL_PROMPT_REQUEST_TYPE Type,
|
|
IN CHAR16 *Prompt OPTIONAL,
|
|
IN OUT VOID **Response OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Prompt the user and return the resultant answer to the requestor.
|
|
|
|
This function is the same as ShellPromptForResponse, except that the prompt is
|
|
automatically pulled from HII.
|
|
|
|
@param[in] Type What type of question is asked. This is used to filter the input
|
|
to prevent invalid answers to question.
|
|
@param[in] HiiFormatStringId The format string Id for getting from Hii.
|
|
@param[in] HiiFormatHandle The format string Handle for getting from Hii.
|
|
@param[in, out] Response The pointer to Response, which will be populated upon return.
|
|
|
|
@retval EFI_SUCCESS The operation was sucessful.
|
|
@return other The operation failed.
|
|
|
|
@sa ShellPromptForResponse
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellPromptForResponseHii (
|
|
IN SHELL_PROMPT_REQUEST_TYPE Type,
|
|
IN CONST EFI_STRING_ID HiiFormatStringId,
|
|
IN CONST EFI_HANDLE HiiFormatHandle,
|
|
IN OUT VOID **Response
|
|
);
|
|
|
|
/**
|
|
Function to determin if an entire string is a valid number.
|
|
|
|
If Hex it must be preceeded with a 0x, 0X, or has ForceHex set TRUE.
|
|
|
|
@param[in] String The string to evaluate.
|
|
@param[in] ForceHex TRUE - always assume hex.
|
|
@param[in] StopAtSpace TRUE to halt upon finding a space, FALSE to keep going.
|
|
|
|
@retval TRUE It is all numeric (dec/hex) characters.
|
|
@retval FALSE There is a non-numeric character.
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
ShellIsHexOrDecimalNumber (
|
|
IN CONST CHAR16 *String,
|
|
IN CONST BOOLEAN ForceHex,
|
|
IN CONST BOOLEAN StopAtSpace
|
|
);
|
|
|
|
/**
|
|
Function to verify and convert a string to its numerical 64 bit representation.
|
|
|
|
If Hex it must be preceeded with a 0x, 0X, or has ForceHex set TRUE.
|
|
|
|
@param[in] String The string to evaluate.
|
|
@param[out] Value Upon a successful return the value of the conversion.
|
|
@param[in] ForceHex TRUE - always assume hex.
|
|
@param[in] StopAtSpace TRUE to halt upon finding a space, FALSE to
|
|
process the entire String.
|
|
|
|
@retval EFI_SUCCESS The conversion was successful.
|
|
@retval EFI_INVALID_PARAMETER String contained an invalid character.
|
|
@retval EFI_NOT_FOUND String was a number, but Value was NULL.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellConvertStringToUint64(
|
|
IN CONST CHAR16 *String,
|
|
OUT UINT64 *Value,
|
|
IN CONST BOOLEAN ForceHex,
|
|
IN CONST BOOLEAN StopAtSpace
|
|
);
|
|
|
|
/**
|
|
Function to determine if a given filename exists.
|
|
|
|
@param[in] Name Path to test.
|
|
|
|
@retval EFI_SUCCESS The Path represents a file.
|
|
@retval EFI_NOT_FOUND The Path does not represent a file.
|
|
@retval other The path failed to open.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellFileExists(
|
|
IN CONST CHAR16 *Name
|
|
);
|
|
|
|
/**
|
|
Function to read a single line from a SHELL_FILE_HANDLE. The \n is not included in the returned
|
|
buffer. The returned buffer must be callee freed.
|
|
|
|
If the position upon start is 0, then the Ascii Boolean will be set. This should be
|
|
maintained and not changed for all operations with the same file.
|
|
|
|
@param[in] Handle SHELL_FILE_HANDLE to read from.
|
|
@param[in, out] Ascii Boolean value for indicating whether the file is
|
|
Ascii (TRUE) or UCS2 (FALSE).
|
|
|
|
@return The line of text from the file.
|
|
|
|
@sa ShellFileHandleReadLine
|
|
**/
|
|
CHAR16*
|
|
EFIAPI
|
|
ShellFileHandleReturnLine(
|
|
IN SHELL_FILE_HANDLE Handle,
|
|
IN OUT BOOLEAN *Ascii
|
|
);
|
|
|
|
/**
|
|
Function to read a single line (up to but not including the \n) from a SHELL_FILE_HANDLE.
|
|
|
|
If the position upon start is 0, then the Ascii Boolean will be set. This should be
|
|
maintained and not changed for all operations with the same file.
|
|
|
|
@param[in] Handle SHELL_FILE_HANDLE to read from.
|
|
@param[in, out] Buffer The pointer to buffer to read into.
|
|
@param[in, out] Size The pointer to number of bytes in Buffer.
|
|
@param[in] Truncate If the buffer is large enough, this has no effect.
|
|
If the buffer is is too small and Truncate is TRUE,
|
|
the line will be truncated.
|
|
If the buffer is is too small and Truncate is FALSE,
|
|
then no read will occur.
|
|
|
|
@param[in, out] Ascii Boolean value for indicating whether the file is
|
|
Ascii (TRUE) or UCS2 (FALSE).
|
|
|
|
@retval EFI_SUCCESS The operation was successful. The line is stored in
|
|
Buffer.
|
|
@retval EFI_END_OF_FILE There are no more lines in the file.
|
|
@retval EFI_INVALID_PARAMETER Handle was NULL.
|
|
@retval EFI_INVALID_PARAMETER Size was NULL.
|
|
@retval EFI_BUFFER_TOO_SMALL Size was not large enough to store the line.
|
|
Size was updated to the minimum space required.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellFileHandleReadLine(
|
|
IN SHELL_FILE_HANDLE Handle,
|
|
IN OUT CHAR16 *Buffer,
|
|
IN OUT UINTN *Size,
|
|
IN BOOLEAN Truncate,
|
|
IN OUT BOOLEAN *Ascii
|
|
);
|
|
|
|
/**
|
|
Function to delete a file by name
|
|
|
|
@param[in] FileName Pointer to file name to delete.
|
|
|
|
@retval EFI_SUCCESS the file was deleted sucessfully
|
|
@retval EFI_WARN_DELETE_FAILURE the handle was closed, but the file was not
|
|
deleted
|
|
@retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
|
|
@retval EFI_NOT_FOUND The specified file could not be found on the
|
|
device or the file system could not be found
|
|
on the device.
|
|
@retval EFI_NO_MEDIA The device has no medium.
|
|
@retval EFI_MEDIA_CHANGED The device has a different medium in it or the
|
|
medium is no longer supported.
|
|
@retval EFI_DEVICE_ERROR The device reported an error.
|
|
@retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
|
|
@retval EFI_WRITE_PROTECTED The file or medium is write protected.
|
|
@retval EFI_ACCESS_DENIED The file was opened read only.
|
|
@retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the
|
|
file.
|
|
@retval other The file failed to open
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellDeleteFileByName(
|
|
IN CONST CHAR16 *FileName
|
|
);
|
|
|
|
/**
|
|
Function to print help file / man page content in the spec from the UEFI Shell protocol GetHelpText function.
|
|
|
|
@param[in] CommandToGetHelpOn Pointer to a string containing the command name of help file to be printed.
|
|
@param[in] SectionToGetHelpOn Pointer to the section specifier(s).
|
|
@param[in] PrintCommandText If TRUE, prints the command followed by the help content, otherwise prints
|
|
the help content only.
|
|
@retval EFI_DEVICE_ERROR The help data format was incorrect.
|
|
@retval EFI_NOT_FOUND The help data could not be found.
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellPrintHelp (
|
|
IN CONST CHAR16 *CommandToGetHelpOn,
|
|
IN CONST CHAR16 *SectionToGetHelpOn,
|
|
IN BOOLEAN PrintCommandText
|
|
);
|
|
|
|
#endif // __SHELL_LIB__
|