This function opens a file with the open mode according to the file path. The \r
Attributes is valid only for EFI_FILE_MODE_CREATE.\r
\r
- @param FilePath on input the device path to the file. On output \r
+ @param FilePath On input the device path to the file. On output \r
the remaining device path.\r
@param DeviceHandle pointer to the system device handle.\r
@param FileHandle pointer to the file handle.\r
otherwise, the Filehandle is NULL. If the directory already existed, this \r
function opens the existing directory.\r
\r
- @param DirectoryName pointer to Directory name\r
- @param FileHandle pointer to the file handle.\r
+ @param DirectoryName Pointer to Directory name.\r
+ @param FileHandle Pointer to the file handle.\r
\r
@retval EFI_SUCCESS The information was set.\r
@retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r
- @retval EFI_UNSUPPORTED Could not open the file path. \r
+ @retval EFI_UNSUPPORTED Could not open the file path. \r
@retval EFI_NOT_FOUND The specified file could not be found on the \r
device or the file system could not be found \r
on the device.\r
are no more directory entries, the read returns a zero-length buffer. \r
EFI_FILE_INFO is the structure returned as the directory entry.\r
\r
- @param FileHandle the opened file handle\r
- \r
- @param ReadSize on input the size of buffer in bytes. on return \r
+ @param FileHandle The opened file handle.\r
+ @param ReadSize On input the size of buffer in bytes. On return \r
the number of bytes written.\r
+ @param Buffer The buffer to put read data into.\r
\r
- @param Buffer the buffer to put read data into.\r
-\r
- @retval EFI_SUCCESS Data was read.\r
- @retval EFI_NO_MEDIA The device has no media.\r
- @retval EFI_DEVICE_ERROR The device reported an error.\r
- @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r
- @retval EFI_BUFFER_TO_SMALL Buffer is too small. ReadSize contains required \r
+ @retval EFI_SUCCESS Data was read.\r
+ @retval EFI_NO_MEDIA The device has no media.\r
+ @retval EFI_DEVICE_ERROR The device reported an error.\r
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r
+ @retval EFI_BUFFER_TO_SMALL Buffer is too small. ReadSize contains required \r
size.\r
\r
**/\r
The file is automatically grown to hold the data if required. Direct writes to \r
opened directories are not supported.\r
\r
- @param FileHandle The opened file for writing\r
+ @param FileHandle The opened file for writing.\r
\r
- @param BufferSize on input the number of bytes in Buffer. On output\r
+ @param BufferSize On input the number of bytes in Buffer. On output\r
the number of bytes written.\r
\r
- @param Buffer the buffer containing data to write is stored.\r
+ @param Buffer The buffer containing data to write is stored.\r
\r
- @retval EFI_SUCCESS Data was written.\r
- @retval EFI_UNSUPPORTED Writes to an open directory are not supported.\r
- @retval EFI_NO_MEDIA The device has no media.\r
- @retval EFI_DEVICE_ERROR The device reported an error.\r
- @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r
- @retval EFI_WRITE_PROTECTED The device is write-protected.\r
- @retval EFI_ACCESS_DENIED The file was open for read only.\r
- @retval EFI_VOLUME_FULL The volume is full.\r
+ @retval EFI_SUCCESS Data was written.\r
+ @retval EFI_UNSUPPORTED Writes to an open directory are not supported.\r
+ @retval EFI_NO_MEDIA The device has no media.\r
+ @retval EFI_DEVICE_ERROR The device reported an error.\r
+ @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r
+ @retval EFI_WRITE_PROTECTED The device is write-protected.\r
+ @retval EFI_ACCESS_DENIED The file was open for read only.\r
+ @retval EFI_VOLUME_FULL The volume is full.\r
**/\r
EFI_STATUS\r
EFIAPI\r
flushed to the device, and the file is closed. In all cases the handle is \r
closed.\r
\r
-@param FileHandle the file handle to close.\r
+ @param FileHandle The file handle to close.\r
\r
-@retval EFI_SUCCESS the file handle was closed sucessfully.\r
-@retval INVALID_PARAMETER One of the parameters has an invalid value.\r
+ @retval EFI_SUCCESS The file handle was closed sucessfully.\r
+ @retval INVALID_PARAMETER One of the parameters has an invalid value.\r
**/\r
EFI_STATUS\r
EFIAPI\r
If the file cannot be deleted, the warning code EFI_WARN_DELETE_FAILURE is \r
returned, but the handle is still closed.\r
\r
- @param FileHandle the file handle to delete\r
+ @param FileHandle The file handle to delete.\r
\r
- @retval EFI_SUCCESS the file was closed sucessfully\r
- @retval EFI_WARN_DELETE_FAILURE the handle was closed, but the file was not \r
- deleted\r
- @retval INVALID_PARAMETER One of the parameters has an invalid value.\r
+ @retval EFI_SUCCESS The file was closed sucessfully.\r
+ @retval EFI_WARN_DELETE_FAILURE The handle was closed, but the file was not \r
+ deleted.\r
+ @retval INVALID_PARAMETER One of the parameters has an invalid value.\r
**/\r
EFI_STATUS\r
EFIAPI\r
This function extracts the file size info from the FileHandle's EFI_FILE_INFO \r
data.\r
\r
- @param FileHandle file handle from which size is retrieved\r
- @param Size pointer to size\r
+ @param FileHandle The file handle from which size is retrieved.\r
+ @param Size Pointer to size.\r
\r
- @retval EFI_SUCCESS operation was completed sucessfully\r
- @retval EFI_DEVICE_ERROR cannot access the file\r
+ @retval EFI_SUCCESS The operation was completed sucessfully.\r
+ @retval EFI_DEVICE_ERROR cannot access the file.\r
**/\r
EFI_STATUS\r
EFIAPI\r
);\r
\r
/**\r
- return the value of an environment variable\r
+ Return the value of an environment variable.\r
\r
- this function gets the value of the environment variable set by the \r
- ShellSetEnvironmentVariable function\r
+ This function gets the value of the environment variable set by the \r
+ ShellSetEnvironmentVariable function.\r
\r
@param EnvKey The key name of the environment variable.\r
\r
@retval NULL the named environment variable does not exist.\r
- @return != NULL pointer to the value of the environment variable\r
+ @return != NULL pointer to the value of the environment variable.\r
**/\r
CONST CHAR16*\r
EFIAPI\r
/**\r
set the value of an environment variable\r
\r
-This function changes the current value of the specified environment variable. If the\r
-environment variable exists and the Value is an empty string, then the environment\r
-variable is deleted. If the environment variable exists and the Value is not an empty\r
-string, then the value of the environment variable is changed. If the environment\r
-variable does not exist and the Value is an empty string, there is no action. If the\r
-environment variable does not exist and the Value is a non-empty string, then the\r
-environment variable is created and assigned the specified value.\r
+ This function changes the current value of the specified environment variable. If the\r
+ environment variable exists and the Value is an empty string, then the environment\r
+ variable is deleted. If the environment variable exists and the Value is not an empty\r
+ string, then the value of the environment variable is changed. If the environment\r
+ variable does not exist and the Value is an empty string, there is no action. If the\r
+ environment variable does not exist and the Value is a non-empty string, then the\r
+ environment variable is created and assigned the specified value.\r
\r
This is not supported pre-UEFI Shell 2.0.\r
\r
);\r
\r
/**\r
- cause the shell to parse and execute a command line.\r
+ Cause the shell to parse and execute a command line.\r
\r
This function creates a nested instance of the shell and executes the specified\r
-command (CommandLine) with the specified environment (Environment). Upon return,\r
-the status code returned by the specified command is placed in StatusCode.\r
-If Environment is NULL, then the current environment is used and all changes made\r
-by the commands executed will be reflected in the current environment. If the\r
-Environment is non-NULL, then the changes made will be discarded.\r
-The CommandLine is executed from the current working directory on the current\r
-device.\r
+ command (CommandLine) with the specified environment (Environment). Upon return,\r
+ the status code returned by the specified command is placed in StatusCode.\r
+ If Environment is NULL, then the current environment is used and all changes made\r
+ by the commands executed will be reflected in the current environment. If the\r
+ Environment is non-NULL, then the changes made will be discarded.\r
+ The CommandLine is executed from the current working directory on the current\r
+ device.\r
\r
-EnvironmentVariables and Status are only supported for UEFI Shell 2.0.\r
-Output is only supported for pre-UEFI Shell 2.0\r
+ EnvironmentVariables and Status are only supported for UEFI Shell 2.0.\r
+ Output is only supported for pre-UEFI Shell 2.0\r
\r
@param ImageHandle Parent image that is starting the operation\r
@param CommandLine pointer to null terminated command line.\r
);\r
\r
/**\r
- sets (enabled or disabled) the page break mode\r
+ Sets (enabled or disabled) the page break mode.\r
\r
- when page break mode is enabled the screen will stop scrolling \r
+ When page break mode is enabled the screen will stop scrolling \r
and wait for operator input before scrolling a subsequent screen.\r
\r
@param CurrentState TRUE to enable and FALSE to disable\r
file has a SHELL_FILE_ARG structure to record the file information. These \r
structures are placed on the list ListHead. Users can get the SHELL_FILE_ARG \r
structures from ListHead to access each file. This function supports wildcards\r
- and will process '?' and '*' as such. the list must be freed with a call to \r
+ and will process '?' and '*' as such. The list must be freed with a call to \r
ShellCloseFileMetaArg().\r
\r
If you are NOT appending to an existing list *ListHead must be NULL. If \r
*ListHead is NULL then it must be callee freed.\r
\r
- @param Arg pointer to path string\r
- @param OpenMode mode to open files with\r
- @param ListHead head of linked list of results\r
+ @param Arg Pointer to path string.\r
+ @param OpenMode Mode to open files with.\r
+ @param ListHead Head of linked list of results.\r
\r
- @retval EFI_SUCCESS the operation was sucessful and the list head \r
- contains the list of opened files\r
- #retval EFI_UNSUPPORTED a previous ShellOpenFileMetaArg must be closed first.\r
- *ListHead is set to NULL.\r
- @return != EFI_SUCCESS the operation failed\r
+ @retval EFI_SUCCESS The operation was sucessful and the list head \r
+ contains the list of opened files.\r
+ @return != EFI_SUCCESS The operation failed.\r
\r
@sa InternalShellConvertFileListType\r
**/\r
IN OUT EFI_SHELL_FILE_INFO **ListHead\r
);\r
\r
+/**\r
+ Find a file by searching the CWD and then the path.\r
+\r
+ if FileName is NULL then ASSERT.\r
+\r
+ if the return value is not NULL then the memory must be caller freed.\r
+\r
+ @param FileName Filename string.\r
+\r
+ @retval NULL the file was not found\r
+ @return !NULL the path to the file.\r
+**/\r
+CHAR16 *\r
+EFIAPI\r
+ShellFindFilePath (\r
+ IN CONST CHAR16 *FileName\r
+ );\r
+\r
typedef enum {\r
- TypeFlag = 0,\r
- TypeValue,\r
- TypePosition,\r
- TypeStart,\r
+ TypeFlag = 0, /// a flag that is present or not present only. (IE "-a")\r
+ TypeValue, /// a flag that has some data following it with a space (IE "-a 1")\r
+ TypePosition, /// some data that did not follow a parameter (IE "filename.txt")\r
+ TypeStart, /// a flag that has variable value appended to the end (IE "-ad", "-afd", "-adf", etc...\r
+ TypeDoubleValue, /// a flag that has 2 space seperated value data following it. (IE "-a 1 2")\r
+ TypeMaxValue, /// a flag followed by all the command line data before the next flag.\r
TypeMax,\r
} ParamType;\r
\r
\r
If no initialization is required, then return RETURN_SUCCESS.\r
\r
- @param CheckList pointer to list of parameters to check\r
- @param CheckPackage Package of checked values\r
- @param ProblemParam optional pointer to pointer to unicode string for \r
+ @param CheckList Pointer to list of parameters to check.\r
+ @param CheckPackage Package of checked values.\r
+ @param ProblemParam Pptional pointer to pointer to unicode string for \r
the paramater that caused failure.\r
- @param AutoPageBreak will automatically set PageBreakEnabled\r
+ @param AutoPageBreak Will automatically set PageBreakEnabled.\r
\r
@retval EFI_SUCCESS The operation completed sucessfully.\r
@retval EFI_OUT_OF_RESOURCES A memory allocation failed\r
@retval EFI_VOLUME_CORRUPTED the command line was corrupt. an argument was \r
duplicated. the duplicated command line argument \r
was returned in ProblemParam if provided.\r
- @retval EFI_DEVICE_ERROR the commands contained 2 opposing arguments. one\r
+ @retval EFI_DEVICE_ERROR The commands contained 2 opposing arguments. one\r
of the command line arguments was returned in \r
ProblemParam if provided.\r
- @retval EFI_NOT_FOUND a argument required a value that was missing. \r
+ @retval EFI_NOT_FOUND A argument required a value that was missing. \r
the invalid command line argument was returned in\r
ProblemParam if provided.\r
**/\r
EFI_STATUS\r
EFIAPI\r
ShellInitialize (\r
+ VOID\r
);\r
\r
/**\r
IN CONST CHAR16 *DirName\r
);\r
\r
+/**\r
+ Function to determine whether a string is decimal or hex representation of a number \r
+ and return the number converted from the string.\r
+\r
+ @param[in] String String representation of a number\r
+\r
+ @retval all the number\r
+**/\r
+UINTN\r
+EFIAPI\r
+ShellStrToUintn(\r
+ IN CONST CHAR16 *String\r
+ );\r
+\r
+/**\r
+ Safely append with automatic string resizing given length of Destination and \r
+ desired length of copy from Source.\r
+\r
+ append the first D characters of Source to the end of Destination, where D is \r
+ the lesser of Count and the StrLen() of Source. If appending those D characters \r
+ will fit within Destination (whose Size is given as CurrentSize) and \r
+ still leave room for a null terminator, then those characters are appended, \r
+ starting at the original terminating null of Destination, and a new terminating \r
+ null is appended.\r
+\r
+ If appending D characters onto Destination will result in a overflow of the size\r
+ given in CurrentSize the string will be grown such that the copy can be performed\r
+ and CurrentSize will be updated to the new size.\r
+\r
+ If Source is NULL, there is nothing to append, just return the current buffer in \r
+ Destination.\r
+\r
+ if Destination is NULL, then ASSERT()\r
+ if Destination's current length (including NULL terminator) is already more then \r
+ CurrentSize, then ASSERT()\r
+\r
+ @param[in,out] Destination The String to append onto\r
+ @param[in,out] CurrentSize on call the number of bytes in Destination. On \r
+ return possibly the new size (still in bytes). if NULL\r
+ then allocate whatever is needed.\r
+ @param[in] Source The String to append from\r
+ @param[in] Count Maximum number of characters to append. if 0 then \r
+ all are appended.\r
+\r
+ @return Destination return the resultant string.\r
+**/\r
+CHAR16* \r
+EFIAPI\r
+StrnCatGrow (\r
+ IN OUT CHAR16 **Destination,\r
+ IN OUT UINTN *CurrentSize,\r
+ IN CONST CHAR16 *Source,\r
+ IN UINTN Count\r
+ );\r
\r
#endif // __SHELL_LIB__\r
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