mirror of https://github.com/acidanthera/audk.git
937 lines
35 KiB
C
937 lines
35 KiB
C
/** @file
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Provides interface to shell functionality for shell commands and applications.
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Copyright (c) 2006 - 2009, Intel Corporation
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All rights reserved. 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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#if !defined(__SHELL_LIB__)
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#define __SHELL_LIB__
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#include <Protocol/SimpleFileSystem.h>
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#include <Protocol/EfiShell.h>
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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 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 EFI_FILE_HANDLE FileHandle
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);
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/**
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This function will set the information about the file for the opened handle
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specified.
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@param FileHandle The file handle of the file for which information
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is being set
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@param FileInfo The infotmation to set.
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@retval EFI_SUCCESS The information was set.
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@retval EFI_UNSUPPORTED The InformationType is not known.
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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 EFI_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 FilePath On input the device path to the file. On output
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the remaining device path.
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@param DeviceHandle pointer to the system device handle.
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@param FileHandle pointer to the file handle.
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@param OpenMode the mode to open the file with.
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@param 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 EFI_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. The Attributes is valid only for
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EFI_FILE_MODE_CREATE.
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@param FileName pointer to file name
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@param FileHandle pointer to the file handle.
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@param OpenMode the mode to open the file with.
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@param 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 EFI_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 create 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 DirectoryName Pointer to Directory name.
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@param FileHandle 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 EFI_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 FileHandle The opened file handle.
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@param 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 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 EFI_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 FileHandle The opened file for writing.
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@param 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 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 EFI_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 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 EFI_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 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 EFI_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 seeking past the end of the file is
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allowed (a subsequent write would grow the file). Seeking 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 FileHandle The file handle on which the position is being set
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@param Position Byte position from begining of 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 EFI_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 FileHandle The open file handle on which to get the position.
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@param Position Byte position from begining of 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 EFI_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 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 EFI_FILE_HANDLE FileHandle
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);
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/**
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Retrieves the first file from a directory
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This function takes an open directory handle and gets the first file
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in the directory's info. Caller can use ShellFindNextFile() to get
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subsequent files.
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Caller must use FreePool on *Buffer opon completion of all file searching.
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@param DirHandle The file handle of the directory to search
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@param Buffer Pointer to pointer to buffer for 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 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 EFI_FILE_HANDLE DirHandle,
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OUT EFI_FILE_INFO **Buffer
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);
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/**
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Retrieves the next file in a directory.
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To use this function, caller must call the ShellFindFirstFile() to get the
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first file, and then use this function get other files. This function can be
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called for several times to get each file's information in the directory. If
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the call of ShellFindNextFile() got the last file in the directory, the next
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call of this function has no file to get. *NoFile will be set to TRUE and the
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data in Buffer is meaningless.
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@param DirHandle the file handle of the directory
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@param Buffer pointer to buffer for file's information
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@param NoFile 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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**/
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EFI_STATUS
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EFIAPI
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ShellFindNextFile(
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IN EFI_FILE_HANDLE DirHandle,
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OUT EFI_FILE_INFO *Buffer,
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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 FileHandle The file handle from which size is retrieved.
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@param Size 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 EFI_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 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 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 EnvKey The key name of the environment variable.
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@param EnvVal The Value of the environment variable
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@param Volatile Indicates whether the variable is non-volatile (FALSE) or volatile (TRUE).
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@retval EFI_SUCCESS the operation was completed sucessfully
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@retval EFI_UNSUPPORTED This operation is not allowed in pre UEFI 2.0 Shell environments
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**/
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EFI_STATUS
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EFIAPI
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ShellSetEnvironmentVariable (
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IN CONST CHAR16 *EnvKey,
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IN CONST CHAR16 *EnvVal,
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IN BOOLEAN Volatile
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);
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/**
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Cause the shell to parse and execute a command line.
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This function creates a nested instance of the shell and executes the specified
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command (CommandLine) with the specified environment (Environment). Upon return,
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the status code returned by the specified command is placed in StatusCode.
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If Environment is NULL, then the current environment is used and all changes made
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by the commands executed will be reflected in the current environment. If the
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Environment is non-NULL, then the changes made will be discarded.
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The CommandLine is executed from the current working directory on the current
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device.
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EnvironmentVariables and Status are only supported for UEFI Shell 2.0.
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Output is only supported for pre-UEFI Shell 2.0
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@param ImageHandle Parent image that is starting the operation
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@param CommandLine pointer to null terminated command line.
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@param Output true to display debug output. false to hide it.
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@param EnvironmentVariables optional pointer to array of environment variables
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in the form "x=y". if NULL current set is used.
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@param Status the status of the run command line.
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@retval EFI_SUCCESS the operation completed sucessfully. Status
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contains the status code returned.
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@retval EFI_INVALID_PARAMETER a parameter contains an invalid value
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@retval EFI_OUT_OF_RESOURCES out of resources
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@retval EFI_UNSUPPORTED the operation is not allowed.
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**/
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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.
|
|
|
|
@param DeviceName the name of the drive to get directory on
|
|
|
|
@retval NULL the directory does not exist
|
|
@return != NULL the directory
|
|
**/
|
|
CONST CHAR16*
|
|
EFIAPI
|
|
ShellGetCurrentDir (
|
|
IN CHAR16 *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 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 Arg Pointer to path string.
|
|
@param OpenMode Mode to open files with.
|
|
@param ListHead Head of linked list of results.
|
|
|
|
@retval EFI_SUCCESS The operation was sucessful and the list head
|
|
contains the list of opened files.
|
|
@return != 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 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 FileName Filename string.
|
|
|
|
@retval NULL the file was not found
|
|
@return !NULL the path to the file.
|
|
**/
|
|
CHAR16 *
|
|
EFIAPI
|
|
ShellFindFilePath (
|
|
IN CONST CHAR16 *FileName
|
|
);
|
|
|
|
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.
|
|
TypeMax,
|
|
} ParamType;
|
|
|
|
typedef struct {
|
|
CHAR16 *Name;
|
|
ParamType Type;
|
|
} SHELL_PARAM_ITEM;
|
|
|
|
|
|
/// Helper structure for no parameters (besides -? and -b)
|
|
extern SHELL_PARAM_ITEM EmptyParamList[];
|
|
|
|
/**
|
|
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 CheckList Pointer to list of parameters to check.
|
|
@param CheckPackage Package of checked values.
|
|
@param ProblemParam Pptional pointer to pointer to unicode string for
|
|
the paramater that caused failure.
|
|
@param AutoPageBreak Will automatically set PageBreakEnabled.
|
|
|
|
@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. an argument was
|
|
duplicated. the duplicated command line argument
|
|
was returned in ProblemParam if provided.
|
|
@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.
|
|
|
|
this function has no return value.
|
|
|
|
if CheckPackage is NULL, then return
|
|
|
|
@param 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 CheckPackage The package of parsed command line arguments
|
|
@param 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 *CheckPackage,
|
|
IN CHAR16 *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 CheckPackage The package of parsed command line arguments
|
|
@param KeyString the Key of the command line argument to check for
|
|
|
|
@retval NULL the flag is not on the command line
|
|
@return !=NULL 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 CheckPackage The package of parsed command line arguments
|
|
@param Position the position of the value
|
|
|
|
@retval NULL the flag is not on the command line
|
|
@return !=NULL pointer to unicode string of the value
|
|
**/
|
|
CONST CHAR16*
|
|
EFIAPI
|
|
ShellCommandLineGetRawValue (
|
|
IN CONST LIST_ENTRY *CheckPackage,
|
|
IN UINT32 Position
|
|
);
|
|
|
|
/**
|
|
returns the number of command line value parameters that were parsed.
|
|
|
|
this will not include flags.
|
|
|
|
@retval (UINTN)-1 No parsing has ocurred
|
|
@return other The number of value parameters found
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
ShellCommandLineGetCount(
|
|
VOID
|
|
);
|
|
|
|
/**
|
|
This function causes the shell library to initialize itself. If the shell library
|
|
is already initialized it will de-initialize all the current protocol poitners 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, print the specified string,
|
|
and return the cursor to the original locaiton.
|
|
|
|
If -1 is specified for either the Row or Col the current screen location for BOTH
|
|
will be used and the cursor's position will not be moved back to an original location.
|
|
|
|
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] Row the row to print at
|
|
@param[in] Col the column to print at
|
|
@param[in] Format the format string
|
|
|
|
@return the number of characters printed to the screen
|
|
**/
|
|
|
|
UINTN
|
|
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, print the specified string,
|
|
and return the cursor to the original locaiton.
|
|
|
|
If -1 is specified for either the Row or Col the current screen location for BOTH
|
|
will be used and the cursor's position will not be moved back to an original location.
|
|
|
|
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] Row the row to print at
|
|
@param[in] Col the column to print at
|
|
@param[in] HiiFormatStringId the format string Id for getting from Hii
|
|
@param[in] HiiFormatHandle the format string Handle for getting from Hii
|
|
|
|
@return the number of characters printed to the screen
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
ShellPrintHiiEx(
|
|
IN INT32 Col OPTIONAL,
|
|
IN INT32 Row OPTIONAL,
|
|
IN CONST EFI_STRING_ID HiiFormatStringId,
|
|
IN CONST EFI_HANDLE HiiFormatHandle,
|
|
...
|
|
);
|
|
|
|
/**
|
|
Function to determine if a given filename represents a file or a directory.
|
|
|
|
@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
|
|
@return other The path failed to open
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ShellIsDirectory(
|
|
IN CONST CHAR16 *DirName
|
|
);
|
|
|
|
/**
|
|
Function to determine whether a string is decimal or hex representation of a number
|
|
and return the number converted from the string.
|
|
|
|
@param[in] String String representation of a number
|
|
|
|
@retval all the number
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
ShellStrToUintn(
|
|
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, just return the current buffer in
|
|
Destination.
|
|
|
|
if Destination is NULL, then ASSERT()
|
|
if Destination's current length (including NULL terminator) is already more then
|
|
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 Maximum number of characters to append. if 0 then
|
|
all are appended.
|
|
|
|
@return Destination return the resultant string.
|
|
**/
|
|
CHAR16*
|
|
EFIAPI
|
|
StrnCatGrow (
|
|
IN OUT CHAR16 **Destination,
|
|
IN OUT UINTN *CurrentSize,
|
|
IN CONST CHAR16 *Source,
|
|
IN UINTN Count
|
|
);
|
|
|
|
#endif // __SHELL_LIB__
|