| 94b17fa1 |
1 | /** @file\r |
| 2 | Provides interface to shell functionality for shell commands and applications.\r |
| 3 | \r |
| a31bd33c |
4 | Copyright (c) 2006 - 2009, Intel Corporation<BR>\r |
| 94b17fa1 |
5 | All rights reserved. This program and the accompanying materials\r |
| 6 | are licensed and made available under the terms and conditions of the BSD License\r |
| 7 | which accompanies this distribution. The full text of the license may be found at\r |
| 8 | http://opensource.org/licenses/bsd-license.php\r |
| 9 | \r |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 12 | \r |
| 13 | **/\r |
| 14 | \r |
| 15 | #if !defined(__SHELL_LIB__)\r |
| 16 | #define __SHELL_LIB__\r |
| 17 | \r |
| 18 | #include <Protocol/SimpleFileSystem.h>\r |
| 94b17fa1 |
19 | #include <Protocol/EfiShell.h>\r |
| 20 | \r |
| 21 | /**\r |
| 22 | This function will retrieve the information about the file for the handle \r |
| 23 | specified and store it in allocated pool memory.\r |
| 24 | \r |
| 69817bf8 |
25 | This function allocates a buffer to store the file's information. It is the \r |
| 26 | caller's responsibility to free the buffer\r |
| 94b17fa1 |
27 | \r |
| 28 | @param FileHandle The file handle of the file for which information is \r |
| 29 | being requested.\r |
| 30 | \r |
| 31 | @retval NULL information could not be retrieved.\r |
| 32 | \r |
| 33 | @return the information about the file\r |
| 34 | **/\r |
| 35 | EFI_FILE_INFO*\r |
| 36 | EFIAPI\r |
| 37 | ShellGetFileInfo (\r |
| 38 | IN EFI_FILE_HANDLE FileHandle\r |
| 39 | );\r |
| 40 | \r |
| 41 | /**\r |
| 42 | This function will set the information about the file for the opened handle \r |
| 43 | specified.\r |
| 44 | \r |
| 45 | @param FileHandle The file handle of the file for which information \r |
| 46 | is being set\r |
| 47 | \r |
| 48 | @param FileInfo The infotmation to set.\r |
| 49 | \r |
| 9eb53ac3 |
50 | @retval EFI_SUCCESS The information was set.\r |
| 94b17fa1 |
51 | @retval EFI_UNSUPPORTED The InformationType is not known.\r |
| 52 | @retval EFI_NO_MEDIA The device has no medium.\r |
| 53 | @retval EFI_DEVICE_ERROR The device reported an error.\r |
| 54 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r |
| 55 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r |
| 56 | @retval EFI_ACCESS_DENIED The file was opened read only.\r |
| 57 | @retval EFI_VOLUME_FULL The volume is full.\r |
| 58 | **/\r |
| 59 | EFI_STATUS\r |
| 60 | EFIAPI\r |
| 61 | ShellSetFileInfo (\r |
| 62 | IN EFI_FILE_HANDLE FileHandle,\r |
| 63 | IN EFI_FILE_INFO *FileInfo\r |
| 64 | );\r |
| 65 | \r |
| 66 | /**\r |
| 67 | This function will open a file or directory referenced by DevicePath.\r |
| 68 | \r |
| 69 | This function opens a file with the open mode according to the file path. The \r |
| 70 | Attributes is valid only for EFI_FILE_MODE_CREATE.\r |
| 71 | \r |
| 125c2cf4 |
72 | @param FilePath On input the device path to the file. On output \r |
| 94b17fa1 |
73 | the remaining device path.\r |
| 74 | @param DeviceHandle pointer to the system device handle.\r |
| 75 | @param FileHandle pointer to the file handle.\r |
| 76 | @param OpenMode the mode to open the file with.\r |
| 77 | @param Attributes the file's file attributes.\r |
| 78 | \r |
| 79 | @retval EFI_SUCCESS The information was set.\r |
| 80 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r |
| 81 | @retval EFI_UNSUPPORTED Could not open the file path. \r |
| 82 | @retval EFI_NOT_FOUND The specified file could not be found on the \r |
| 83 | device or the file system could not be found on \r |
| 84 | the device.\r |
| 85 | @retval EFI_NO_MEDIA The device has no medium.\r |
| 86 | @retval EFI_MEDIA_CHANGED The device has a different medium in it or the \r |
| 87 | medium is no longer supported.\r |
| 88 | @retval EFI_DEVICE_ERROR The device reported an error.\r |
| 89 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r |
| 90 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r |
| 91 | @retval EFI_ACCESS_DENIED The file was opened read only.\r |
| 92 | @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the \r |
| 93 | file.\r |
| 94 | @retval EFI_VOLUME_FULL The volume is full.\r |
| 95 | **/\r |
| 96 | EFI_STATUS\r |
| 97 | EFIAPI\r |
| 98 | ShellOpenFileByDevicePath(\r |
| 99 | IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath,\r |
| 100 | OUT EFI_HANDLE *DeviceHandle,\r |
| 101 | OUT EFI_FILE_HANDLE *FileHandle,\r |
| 102 | IN UINT64 OpenMode,\r |
| 103 | IN UINT64 Attributes\r |
| 104 | );\r |
| 105 | \r |
| 106 | /**\r |
| 107 | This function will open a file or directory referenced by filename.\r |
| 108 | \r |
| 69817bf8 |
109 | If return is EFI_SUCCESS, the Filehandle is the opened file's handle; \r |
| 94b17fa1 |
110 | otherwise, the Filehandle is NULL. The Attributes is valid only for \r |
| 111 | EFI_FILE_MODE_CREATE.\r |
| 112 | \r |
| 113 | @param FileName pointer to file name\r |
| 114 | @param FileHandle pointer to the file handle.\r |
| 115 | @param OpenMode the mode to open the file with.\r |
| 116 | @param Attributes the file's file attributes.\r |
| 117 | \r |
| 9eb53ac3 |
118 | @retval EFI_SUCCESS The information was set.\r |
| 94b17fa1 |
119 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r |
| 9eb53ac3 |
120 | @retval EFI_UNSUPPORTED Could not open the file path. \r |
| 94b17fa1 |
121 | @retval EFI_NOT_FOUND The specified file could not be found on the \r |
| 122 | device or the file system could not be found \r |
| 123 | on the device.\r |
| 9eb53ac3 |
124 | @retval EFI_NO_MEDIA The device has no medium.\r |
| 125 | @retval EFI_MEDIA_CHANGED The device has a different medium in it or the \r |
| 94b17fa1 |
126 | medium is no longer supported.\r |
| 9eb53ac3 |
127 | @retval EFI_DEVICE_ERROR The device reported an error.\r |
| 94b17fa1 |
128 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r |
| 9eb53ac3 |
129 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r |
| 130 | @retval EFI_ACCESS_DENIED The file was opened read only.\r |
| 94b17fa1 |
131 | @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the \r |
| 132 | file.\r |
| 9eb53ac3 |
133 | @retval EFI_VOLUME_FULL The volume is full.\r |
| 94b17fa1 |
134 | **/\r |
| 135 | EFI_STATUS\r |
| 136 | EFIAPI\r |
| 137 | ShellOpenFileByName(\r |
| b82bfcc1 |
138 | IN CONST CHAR16 *FilePath,\r |
| 94b17fa1 |
139 | OUT EFI_FILE_HANDLE *FileHandle,\r |
| 140 | IN UINT64 OpenMode,\r |
| 141 | IN UINT64 Attributes\r |
| 142 | );\r |
| 143 | \r |
| 144 | /**\r |
| 145 | This function create a directory\r |
| 146 | \r |
| 147 | If return is EFI_SUCCESS, the Filehandle is the opened directory's handle; \r |
| 148 | otherwise, the Filehandle is NULL. If the directory already existed, this \r |
| 149 | function opens the existing directory.\r |
| 150 | \r |
| 125c2cf4 |
151 | @param DirectoryName Pointer to Directory name.\r |
| 152 | @param FileHandle Pointer to the file handle.\r |
| 94b17fa1 |
153 | \r |
| 154 | @retval EFI_SUCCESS The information was set.\r |
| 155 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r |
| 125c2cf4 |
156 | @retval EFI_UNSUPPORTED Could not open the file path. \r |
| 94b17fa1 |
157 | @retval EFI_NOT_FOUND The specified file could not be found on the \r |
| 158 | device or the file system could not be found \r |
| 159 | on the device.\r |
| 9eb53ac3 |
160 | @retval EFI_NO_MEDIA The device has no medium.\r |
| 161 | @retval EFI_MEDIA_CHANGED The device has a different medium in it or the \r |
| 94b17fa1 |
162 | medium is no longer supported.\r |
| 9eb53ac3 |
163 | @retval EFI_DEVICE_ERROR The device reported an error.\r |
| 94b17fa1 |
164 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r |
| 9eb53ac3 |
165 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r |
| 166 | @retval EFI_ACCESS_DENIED The file was opened read only.\r |
| 94b17fa1 |
167 | @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the \r |
| 168 | file.\r |
| 9eb53ac3 |
169 | @retval EFI_VOLUME_FULL The volume is full.\r |
| 94b17fa1 |
170 | **/\r |
| 171 | EFI_STATUS\r |
| 172 | EFIAPI\r |
| 173 | ShellCreateDirectory(\r |
| b82bfcc1 |
174 | IN CONST CHAR16 *DirectoryName,\r |
| 94b17fa1 |
175 | OUT EFI_FILE_HANDLE *FileHandle\r |
| 176 | );\r |
| 177 | \r |
| 178 | /**\r |
| 179 | This function reads information from an opened file.\r |
| 180 | \r |
| 181 | If FileHandle is not a directory, the function reads the requested number of \r |
| 69817bf8 |
182 | bytes from the file at the file's current position and returns them in Buffer. \r |
| 94b17fa1 |
183 | If the read goes beyond the end of the file, the read length is truncated to the\r |
| 69817bf8 |
184 | end of the file. The file's current position is increased by the number of bytes \r |
| 94b17fa1 |
185 | returned. If FileHandle is a directory, the function reads the directory entry \r |
| 69817bf8 |
186 | at the file's current position and returns the entry in Buffer. If the Buffer \r |
| 94b17fa1 |
187 | is not large enough to hold the current directory entry, then \r |
| 188 | EFI_BUFFER_TOO_SMALL is returned and the current file position is not updated. \r |
| 189 | BufferSize is set to be the size of the buffer needed to read the entry. On \r |
| 190 | success, the current position is updated to the next directory entry. If there \r |
| 191 | are no more directory entries, the read returns a zero-length buffer. \r |
| 192 | EFI_FILE_INFO is the structure returned as the directory entry.\r |
| 193 | \r |
| 125c2cf4 |
194 | @param FileHandle The opened file handle.\r |
| 195 | @param ReadSize On input the size of buffer in bytes. On return \r |
| 94b17fa1 |
196 | the number of bytes written.\r |
| 125c2cf4 |
197 | @param Buffer The buffer to put read data into.\r |
| 94b17fa1 |
198 | \r |
| 125c2cf4 |
199 | @retval EFI_SUCCESS Data was read.\r |
| 200 | @retval EFI_NO_MEDIA The device has no media.\r |
| 201 | @retval EFI_DEVICE_ERROR The device reported an error.\r |
| 202 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r |
| 203 | @retval EFI_BUFFER_TO_SMALL Buffer is too small. ReadSize contains required \r |
| 94b17fa1 |
204 | size.\r |
| 205 | \r |
| 206 | **/\r |
| 207 | EFI_STATUS\r |
| 208 | EFIAPI\r |
| 209 | ShellReadFile(\r |
| 210 | IN EFI_FILE_HANDLE FileHandle,\r |
| 211 | IN OUT UINTN *ReadSize,\r |
| 212 | OUT VOID *Buffer\r |
| 213 | );\r |
| 214 | \r |
| 215 | /**\r |
| 216 | Write data to a file.\r |
| 217 | \r |
| 218 | This function writes the specified number of bytes to the file at the current \r |
| 219 | file position. The current file position is advanced the actual number of bytes \r |
| 220 | written, which is returned in BufferSize. Partial writes only occur when there \r |
| 69817bf8 |
221 | has been a data error during the write attempt (such as "volume space full"). \r |
| 94b17fa1 |
222 | The file is automatically grown to hold the data if required. Direct writes to \r |
| 223 | opened directories are not supported.\r |
| 224 | \r |
| 125c2cf4 |
225 | @param FileHandle The opened file for writing.\r |
| 94b17fa1 |
226 | \r |
| 125c2cf4 |
227 | @param BufferSize On input the number of bytes in Buffer. On output\r |
| 94b17fa1 |
228 | the number of bytes written.\r |
| 229 | \r |
| 125c2cf4 |
230 | @param Buffer The buffer containing data to write is stored.\r |
| 94b17fa1 |
231 | \r |
| 125c2cf4 |
232 | @retval EFI_SUCCESS Data was written.\r |
| 233 | @retval EFI_UNSUPPORTED Writes to an open directory are not supported.\r |
| 234 | @retval EFI_NO_MEDIA The device has no media.\r |
| 235 | @retval EFI_DEVICE_ERROR The device reported an error.\r |
| 236 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r |
| 237 | @retval EFI_WRITE_PROTECTED The device is write-protected.\r |
| 238 | @retval EFI_ACCESS_DENIED The file was open for read only.\r |
| 239 | @retval EFI_VOLUME_FULL The volume is full.\r |
| 94b17fa1 |
240 | **/\r |
| 241 | EFI_STATUS\r |
| 242 | EFIAPI\r |
| 243 | ShellWriteFile(\r |
| 244 | IN EFI_FILE_HANDLE FileHandle,\r |
| 245 | IN OUT UINTN *BufferSize,\r |
| 08d7f8e8 |
246 | IN VOID *Buffer\r |
| 94b17fa1 |
247 | );\r |
| 248 | \r |
| 249 | /** \r |
| 250 | Close an open file handle.\r |
| 251 | \r |
| 69817bf8 |
252 | This function closes a specified file handle. All "dirty" cached file data is \r |
| 94b17fa1 |
253 | flushed to the device, and the file is closed. In all cases the handle is \r |
| 254 | closed.\r |
| 255 | \r |
| 125c2cf4 |
256 | @param FileHandle The file handle to close.\r |
| 94b17fa1 |
257 | \r |
| 125c2cf4 |
258 | @retval EFI_SUCCESS The file handle was closed sucessfully.\r |
| 259 | @retval INVALID_PARAMETER One of the parameters has an invalid value.\r |
| 94b17fa1 |
260 | **/\r |
| 261 | EFI_STATUS\r |
| 262 | EFIAPI\r |
| 263 | ShellCloseFile (\r |
| 264 | IN EFI_FILE_HANDLE *FileHandle\r |
| 265 | );\r |
| 266 | \r |
| 267 | /**\r |
| 268 | Delete a file and close the handle\r |
| 269 | \r |
| 270 | This function closes and deletes a file. In all cases the file handle is closed.\r |
| 271 | If the file cannot be deleted, the warning code EFI_WARN_DELETE_FAILURE is \r |
| 272 | returned, but the handle is still closed.\r |
| 273 | \r |
| 125c2cf4 |
274 | @param FileHandle The file handle to delete.\r |
| 94b17fa1 |
275 | \r |
| 125c2cf4 |
276 | @retval EFI_SUCCESS The file was closed sucessfully.\r |
| 277 | @retval EFI_WARN_DELETE_FAILURE The handle was closed, but the file was not \r |
| 278 | deleted.\r |
| 279 | @retval INVALID_PARAMETER One of the parameters has an invalid value.\r |
| 94b17fa1 |
280 | **/\r |
| 281 | EFI_STATUS\r |
| 282 | EFIAPI\r |
| 283 | ShellDeleteFile (\r |
| 284 | IN EFI_FILE_HANDLE *FileHandle\r |
| 285 | );\r |
| 286 | \r |
| 287 | /**\r |
| 288 | Set the current position in a file.\r |
| 289 | \r |
| 290 | This function sets the current file position for the handle to the position \r |
| 291 | supplied. With the exception of seeking to position 0xFFFFFFFFFFFFFFFF, only\r |
| 292 | absolute positioning is supported, and seeking past the end of the file is \r |
| 293 | allowed (a subsequent write would grow the file). Seeking to position \r |
| 294 | 0xFFFFFFFFFFFFFFFF causes the current position to be set to the end of the file.\r |
| 295 | If FileHandle is a directory, the only position that may be set is zero. This \r |
| 296 | has the effect of starting the read process of the directory entries over.\r |
| 297 | \r |
| 298 | @param FileHandle The file handle on which the position is being set\r |
| 299 | \r |
| 300 | @param Position Byte position from begining of file\r |
| 301 | \r |
| 302 | @retval EFI_SUCCESS Operation completed sucessfully.\r |
| 303 | @retval EFI_UNSUPPORTED the seek request for non-zero is not valid on \r |
| 304 | directories.\r |
| 305 | @retval INVALID_PARAMETER One of the parameters has an invalid value.\r |
| 306 | **/\r |
| 307 | EFI_STATUS\r |
| 308 | EFIAPI\r |
| 309 | ShellSetFilePosition (\r |
| 310 | IN EFI_FILE_HANDLE FileHandle,\r |
| 311 | IN UINT64 Position\r |
| 312 | );\r |
| 313 | \r |
| 314 | /** \r |
| 315 | Gets a file's current position\r |
| 316 | \r |
| 317 | This function retrieves the current file position for the file handle. For \r |
| 318 | directories, the current file position has no meaning outside of the file \r |
| 319 | system driver and as such the operation is not supported. An error is returned\r |
| 320 | if FileHandle is a directory.\r |
| 321 | \r |
| 322 | @param FileHandle The open file handle on which to get the position.\r |
| 323 | @param Position Byte position from begining of file.\r |
| 324 | \r |
| 325 | @retval EFI_SUCCESS the operation completed sucessfully.\r |
| 326 | @retval INVALID_PARAMETER One of the parameters has an invalid value.\r |
| 327 | @retval EFI_UNSUPPORTED the request is not valid on directories.\r |
| 328 | **/\r |
| 329 | EFI_STATUS\r |
| 330 | EFIAPI\r |
| 331 | ShellGetFilePosition (\r |
| 332 | IN EFI_FILE_HANDLE FileHandle,\r |
| 333 | OUT UINT64 *Position\r |
| 334 | );\r |
| 335 | \r |
| 336 | /**\r |
| 337 | Flushes data on a file\r |
| 338 | \r |
| 339 | This function flushes all modified data associated with a file to a device.\r |
| 340 | \r |
| 341 | @param FileHandle The file handle on which to flush data\r |
| 342 | \r |
| 343 | @retval EFI_SUCCESS The data was flushed.\r |
| 344 | @retval EFI_NO_MEDIA The device has no media.\r |
| 345 | @retval EFI_DEVICE_ERROR The device reported an error.\r |
| 346 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r |
| 347 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r |
| 348 | @retval EFI_ACCESS_DENIED The file was opened for read only.\r |
| 349 | **/\r |
| 350 | EFI_STATUS\r |
| 351 | EFIAPI\r |
| 352 | ShellFlushFile (\r |
| 353 | IN EFI_FILE_HANDLE FileHandle\r |
| 354 | );\r |
| 355 | \r |
| 356 | /**\r |
| 357 | Retrieves the first file from a directory\r |
| 358 | \r |
| 359 | This function takes an open directory handle and gets the first file \r |
| 360 | in the directory's info. Caller can use ShellFindNextFile() to get \r |
| 361 | subsequent files.\r |
| 362 | \r |
| d2b4564b |
363 | Caller must use FreePool on *Buffer opon completion of all file searching.\r |
| 364 | \r |
| 94b17fa1 |
365 | @param DirHandle The file handle of the directory to search\r |
| d2b4564b |
366 | @param Buffer Pointer to pointer to buffer for file's information\r |
| 94b17fa1 |
367 | \r |
| 368 | @retval EFI_SUCCESS Found the first file.\r |
| 369 | @retval EFI_NOT_FOUND Cannot find the directory.\r |
| 370 | @retval EFI_NO_MEDIA The device has no media.\r |
| 371 | @retval EFI_DEVICE_ERROR The device reported an error.\r |
| 372 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r |
| 373 | @return ShellReadFile\r |
| 374 | **/\r |
| 375 | EFI_STATUS\r |
| 376 | EFIAPI\r |
| 377 | ShellFindFirstFile (\r |
| 378 | IN EFI_FILE_HANDLE DirHandle,\r |
| d2b4564b |
379 | OUT EFI_FILE_INFO **Buffer\r |
| 94b17fa1 |
380 | );\r |
| 381 | \r |
| 382 | /**\r |
| 383 | Retrieves the next file in a directory.\r |
| 384 | \r |
| 385 | To use this function, caller must call the ShellFindFirstFile() to get the \r |
| 386 | first file, and then use this function get other files. This function can be \r |
| 387 | called for several times to get each file's information in the directory. If \r |
| 388 | the call of ShellFindNextFile() got the last file in the directory, the next \r |
| 389 | call of this function has no file to get. *NoFile will be set to TRUE and the \r |
| 390 | data in Buffer is meaningless. \r |
| 391 | \r |
| 392 | @param DirHandle the file handle of the directory\r |
| 393 | @param Buffer pointer to buffer for file's information\r |
| 394 | @param NoFile pointer to boolean when last file is found\r |
| 395 | \r |
| 396 | @retval EFI_SUCCESS Found the next file.\r |
| 397 | @retval EFI_NO_MEDIA The device has no media.\r |
| 398 | @retval EFI_DEVICE_ERROR The device reported an error.\r |
| 399 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r |
| 400 | **/\r |
| 401 | EFI_STATUS\r |
| 402 | EFIAPI\r |
| 403 | ShellFindNextFile(\r |
| 404 | IN EFI_FILE_HANDLE DirHandle,\r |
| 405 | OUT EFI_FILE_INFO *Buffer,\r |
| 406 | OUT BOOLEAN *NoFile\r |
| 407 | );\r |
| 408 | \r |
| 409 | /**\r |
| 410 | Retrieve the size of a file.\r |
| 411 | \r |
| 69817bf8 |
412 | This function extracts the file size info from the FileHandle's EFI_FILE_INFO \r |
| 94b17fa1 |
413 | data.\r |
| 414 | \r |
| 125c2cf4 |
415 | @param FileHandle The file handle from which size is retrieved.\r |
| 416 | @param Size Pointer to size.\r |
| 94b17fa1 |
417 | \r |
| 125c2cf4 |
418 | @retval EFI_SUCCESS The operation was completed sucessfully.\r |
| a31bd33c |
419 | @retval EFI_DEVICE_ERROR Cannot access the file.\r |
| 94b17fa1 |
420 | **/\r |
| 421 | EFI_STATUS\r |
| 422 | EFIAPI\r |
| 423 | ShellGetFileSize (\r |
| 424 | IN EFI_FILE_HANDLE FileHandle,\r |
| 425 | OUT UINT64 *Size\r |
| 426 | );\r |
| 427 | \r |
| 428 | /**\r |
| 429 | Retrieves the status of the break execution flag\r |
| 430 | \r |
| 431 | this function is useful to check whether the application is being asked to halt by the shell.\r |
| 432 | \r |
| 433 | @retval TRUE the execution break is enabled\r |
| 434 | @retval FALSE the execution break is not enabled\r |
| 435 | **/\r |
| 436 | BOOLEAN\r |
| 437 | EFIAPI\r |
| 438 | ShellGetExecutionBreakFlag(\r |
| 439 | VOID\r |
| 440 | );\r |
| 441 | \r |
| 442 | /**\r |
| 125c2cf4 |
443 | Return the value of an environment variable.\r |
| 94b17fa1 |
444 | \r |
| 125c2cf4 |
445 | This function gets the value of the environment variable set by the \r |
| 446 | ShellSetEnvironmentVariable function.\r |
| 94b17fa1 |
447 | \r |
| 448 | @param EnvKey The key name of the environment variable.\r |
| 449 | \r |
| a31bd33c |
450 | @retval NULL The named environment variable does not exist.\r |
| 125c2cf4 |
451 | @return != NULL pointer to the value of the environment variable.\r |
| 94b17fa1 |
452 | **/\r |
| 453 | CONST CHAR16*\r |
| 454 | EFIAPI\r |
| 455 | ShellGetEnvironmentVariable (\r |
| 9b3bf083 |
456 | IN CONST CHAR16 *EnvKey\r |
| 94b17fa1 |
457 | );\r |
| 458 | \r |
| 459 | /**\r |
| 460 | set the value of an environment variable\r |
| 461 | \r |
| 125c2cf4 |
462 | This function changes the current value of the specified environment variable. If the\r |
| 463 | environment variable exists and the Value is an empty string, then the environment\r |
| 464 | variable is deleted. If the environment variable exists and the Value is not an empty\r |
| 465 | string, then the value of the environment variable is changed. If the environment\r |
| 466 | variable does not exist and the Value is an empty string, there is no action. If the\r |
| 467 | environment variable does not exist and the Value is a non-empty string, then the\r |
| 468 | environment variable is created and assigned the specified value.\r |
| 94b17fa1 |
469 | \r |
| 470 | This is not supported pre-UEFI Shell 2.0.\r |
| 471 | \r |
| 472 | @param EnvKey The key name of the environment variable.\r |
| 473 | @param EnvVal The Value of the environment variable\r |
| 474 | @param Volatile Indicates whether the variable is non-volatile (FALSE) or volatile (TRUE).\r |
| 475 | \r |
| 476 | @retval EFI_SUCCESS the operation was completed sucessfully\r |
| 477 | @retval EFI_UNSUPPORTED This operation is not allowed in pre UEFI 2.0 Shell environments\r |
| 478 | **/\r |
| 479 | EFI_STATUS\r |
| 480 | EFIAPI\r |
| 481 | ShellSetEnvironmentVariable (\r |
| 482 | IN CONST CHAR16 *EnvKey,\r |
| 483 | IN CONST CHAR16 *EnvVal,\r |
| 484 | IN BOOLEAN Volatile\r |
| 485 | );\r |
| 486 | \r |
| 487 | /**\r |
| 125c2cf4 |
488 | Cause the shell to parse and execute a command line.\r |
| 94b17fa1 |
489 | \r |
| 490 | This function creates a nested instance of the shell and executes the specified\r |
| 125c2cf4 |
491 | command (CommandLine) with the specified environment (Environment). Upon return,\r |
| 492 | the status code returned by the specified command is placed in StatusCode.\r |
| 493 | If Environment is NULL, then the current environment is used and all changes made\r |
| 494 | by the commands executed will be reflected in the current environment. If the\r |
| 495 | Environment is non-NULL, then the changes made will be discarded.\r |
| 496 | The CommandLine is executed from the current working directory on the current\r |
| 497 | device.\r |
| 94b17fa1 |
498 | \r |
| 125c2cf4 |
499 | EnvironmentVariables and Status are only supported for UEFI Shell 2.0.\r |
| 500 | Output is only supported for pre-UEFI Shell 2.0\r |
| 94b17fa1 |
501 | \r |
| a31bd33c |
502 | @param ImageHandle Parent image that is starting the operation.\r |
| 503 | @param CommandLine Pointer to null terminated command line.\r |
| 504 | @param Output True to display debug output. false to hide it.\r |
| 505 | @param EnvironmentVariables Optional pointer to array of environment variables\r |
| 506 | in the form "x=y". If NULL current set is used.\r |
| 507 | @param Status The status of the run command line.\r |
| 94b17fa1 |
508 | \r |
| a31bd33c |
509 | @retval EFI_SUCCESS The operation completed sucessfully. Status\r |
| 94b17fa1 |
510 | contains the status code returned.\r |
| a31bd33c |
511 | @retval EFI_INVALID_PARAMETER A parameter contains an invalid value.\r |
| 512 | @retval EFI_OUT_OF_RESOURCES Out of resources.\r |
| 513 | @retval EFI_UNSUPPORTED The operation is not allowed.\r |
| 94b17fa1 |
514 | **/\r |
| 515 | EFI_STATUS\r |
| 516 | EFIAPI\r |
| 517 | ShellExecute (\r |
| 518 | IN EFI_HANDLE *ParentHandle,\r |
| 519 | IN CHAR16 *CommandLine,\r |
| 520 | IN BOOLEAN Output,\r |
| 521 | IN CHAR16 **EnvironmentVariables,\r |
| 522 | OUT EFI_STATUS *Status\r |
| 523 | );\r |
| 524 | \r |
| 525 | /**\r |
| a31bd33c |
526 | Retreives the current directory path.\r |
| 94b17fa1 |
527 | \r |
| 69817bf8 |
528 | If the DeviceName is NULL, it returns the current device's current directory \r |
| 94b17fa1 |
529 | name. If the DeviceName is not NULL, it returns the current directory name \r |
| 530 | on specified drive.\r |
| 531 | \r |
| a31bd33c |
532 | @param DeviceName The name of the file system to get directory on.\r |
| 94b17fa1 |
533 | \r |
| a31bd33c |
534 | @retval NULL The directory does not exist.\r |
| 535 | @return != NULL The directory.\r |
| 94b17fa1 |
536 | **/\r |
| 537 | CONST CHAR16*\r |
| 538 | EFIAPI\r |
| 539 | ShellGetCurrentDir (\r |
| 540 | IN CHAR16 *DeviceName OPTIONAL\r |
| 541 | );\r |
| 542 | \r |
| 543 | /**\r |
| 125c2cf4 |
544 | Sets (enabled or disabled) the page break mode.\r |
| 94b17fa1 |
545 | \r |
| 125c2cf4 |
546 | When page break mode is enabled the screen will stop scrolling \r |
| 94b17fa1 |
547 | and wait for operator input before scrolling a subsequent screen.\r |
| 548 | \r |
| a31bd33c |
549 | @param CurrentState TRUE to enable and FALSE to disable.\r |
| 94b17fa1 |
550 | **/\r |
| 551 | VOID \r |
| 552 | EFIAPI\r |
| 553 | ShellSetPageBreakMode (\r |
| 554 | IN BOOLEAN CurrentState\r |
| 555 | );\r |
| 556 | \r |
| 557 | /**\r |
| 558 | Opens a group of files based on a path.\r |
| 559 | \r |
| 560 | This function uses the Arg to open all the matching files. Each matched \r |
| 561 | file has a SHELL_FILE_ARG structure to record the file information. These \r |
| 562 | structures are placed on the list ListHead. Users can get the SHELL_FILE_ARG \r |
| 563 | structures from ListHead to access each file. This function supports wildcards\r |
| 125c2cf4 |
564 | and will process '?' and '*' as such. The list must be freed with a call to \r |
| 94b17fa1 |
565 | ShellCloseFileMetaArg().\r |
| 566 | \r |
| eb646684 |
567 | If you are NOT appending to an existing list *ListHead must be NULL. If \r |
| 568 | *ListHead is NULL then it must be callee freed.\r |
| 94b17fa1 |
569 | \r |
| 125c2cf4 |
570 | @param Arg Pointer to path string.\r |
| 571 | @param OpenMode Mode to open files with.\r |
| 572 | @param ListHead Head of linked list of results.\r |
| 94b17fa1 |
573 | \r |
| 125c2cf4 |
574 | @retval EFI_SUCCESS The operation was sucessful and the list head \r |
| 575 | contains the list of opened files.\r |
| a31bd33c |
576 | @retval != EFI_SUCCESS The operation failed.\r |
| 94b17fa1 |
577 | \r |
| 578 | @sa InternalShellConvertFileListType\r |
| 579 | **/\r |
| 580 | EFI_STATUS\r |
| 581 | EFIAPI\r |
| 582 | ShellOpenFileMetaArg (\r |
| 583 | IN CHAR16 *Arg,\r |
| 584 | IN UINT64 OpenMode,\r |
| 585 | IN OUT EFI_SHELL_FILE_INFO **ListHead\r |
| 586 | );\r |
| 587 | \r |
| 588 | /**\r |
| a31bd33c |
589 | Free the linked list returned from ShellOpenFileMetaArg.\r |
| 94b17fa1 |
590 | \r |
| a31bd33c |
591 | @param ListHead The pointer to free.\r |
| 94b17fa1 |
592 | \r |
| a31bd33c |
593 | @retval EFI_SUCCESS The operation was sucessful.\r |
| 594 | @retval EFI_INVALID_PARAMETER A parameter was invalid.\r |
| 94b17fa1 |
595 | **/\r |
| 596 | EFI_STATUS\r |
| 597 | EFIAPI\r |
| 598 | ShellCloseFileMetaArg (\r |
| 599 | IN OUT EFI_SHELL_FILE_INFO **ListHead\r |
| 600 | );\r |
| 601 | \r |
| 125c2cf4 |
602 | /**\r |
| 603 | Find a file by searching the CWD and then the path.\r |
| 604 | \r |
| a31bd33c |
605 | If FileName is NULL, then ASSERT.\r |
| 125c2cf4 |
606 | \r |
| a31bd33c |
607 | If the return value is not NULL then the memory must be caller freed.\r |
| 125c2cf4 |
608 | \r |
| 609 | @param FileName Filename string.\r |
| 610 | \r |
| a31bd33c |
611 | @retval NULL The file was not found.\r |
| 612 | @return !NULL The path to the file.\r |
| 125c2cf4 |
613 | **/\r |
| 614 | CHAR16 *\r |
| 615 | EFIAPI\r |
| 616 | ShellFindFilePath (\r |
| 617 | IN CONST CHAR16 *FileName\r |
| 618 | );\r |
| 619 | \r |
| 94b17fa1 |
620 | typedef enum {\r |
| a31bd33c |
621 | TypeFlag = 0, ///< a flag that is present or not present only (IE "-a").\r |
| 622 | TypeValue, ///< a flag that has some data following it with a space (IE "-a 1").\r |
| 623 | TypePosition, ///< some data that did not follow a parameter (IE "filename.txt").\r |
| 624 | TypeStart, ///< a flag that has variable value appended to the end (IE "-ad", "-afd", "-adf", etc...).\r |
| 625 | TypeDoubleValue, ///< a flag that has 2 space seperated value data following it (IE "-a 1 2").\r |
| 626 | TypeMaxValue, ///< a flag followed by all the command line data before the next flag.\r |
| 94b17fa1 |
627 | TypeMax,\r |
| 628 | } ParamType;\r |
| 629 | \r |
| 630 | typedef struct {\r |
| 631 | CHAR16 *Name;\r |
| 632 | ParamType Type;\r |
| 633 | } SHELL_PARAM_ITEM;\r |
| 634 | \r |
| d2b4564b |
635 | \r |
| 636 | /// Helper structure for no parameters (besides -? and -b)\r |
| 637 | extern SHELL_PARAM_ITEM EmptyParamList[];\r |
| 638 | \r |
| 94b17fa1 |
639 | /**\r |
| 640 | Checks the command line arguments passed against the list of valid ones. \r |
| 641 | Optionally removes NULL values first.\r |
| 642 | \r |
| 643 | If no initialization is required, then return RETURN_SUCCESS.\r |
| 644 | \r |
| 125c2cf4 |
645 | @param CheckList Pointer to list of parameters to check.\r |
| 646 | @param CheckPackage Package of checked values.\r |
| a31bd33c |
647 | @param ProblemParam Optional pointer to pointer to unicode string for \r |
| 94b17fa1 |
648 | the paramater that caused failure.\r |
| 125c2cf4 |
649 | @param AutoPageBreak Will automatically set PageBreakEnabled.\r |
| 94b17fa1 |
650 | \r |
| 651 | @retval EFI_SUCCESS The operation completed sucessfully.\r |
| a31bd33c |
652 | @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r |
| 653 | @retval EFI_INVALID_PARAMETER A parameter was invalid.\r |
| 654 | @retval EFI_VOLUME_CORRUPTED The command line was corrupt. an argument was \r |
| 655 | duplicated. The duplicated command line argument \r |
| 94b17fa1 |
656 | was returned in ProblemParam if provided.\r |
| a31bd33c |
657 | @retval EFI_DEVICE_ERROR The commands contained 2 opposing arguments. One\r |
| 94b17fa1 |
658 | of the command line arguments was returned in \r |
| 659 | ProblemParam if provided.\r |
| 125c2cf4 |
660 | @retval EFI_NOT_FOUND A argument required a value that was missing. \r |
| a31bd33c |
661 | The invalid command line argument was returned in\r |
| 94b17fa1 |
662 | ProblemParam if provided.\r |
| 663 | **/\r |
| 664 | EFI_STATUS\r |
| 665 | EFIAPI\r |
| 2247dde4 |
666 | ShellCommandLineParseEx (\r |
| 94b17fa1 |
667 | IN CONST SHELL_PARAM_ITEM *CheckList,\r |
| 668 | OUT LIST_ENTRY **CheckPackage,\r |
| 669 | OUT CHAR16 **ProblemParam OPTIONAL,\r |
| 2247dde4 |
670 | IN BOOLEAN AutoPageBreak,\r |
| 671 | IN BOOLEAN AlwaysAllowNumbers\r |
| 94b17fa1 |
672 | );\r |
| 673 | \r |
| a31bd33c |
674 | /// make it easy to upgrade from older versions of the shell library.\r |
| 2247dde4 |
675 | #define ShellCommandLineParse(CheckList,CheckPackage,ProblemParam,AutoPageBreak) ShellCommandLineParseEx(CheckList,CheckPackage,ProblemParam,AutoPageBreak,FALSE)\r |
| 676 | \r |
| 94b17fa1 |
677 | /**\r |
| 678 | Frees shell variable list that was returned from ShellCommandLineParse.\r |
| 679 | \r |
| 680 | This function will free all the memory that was used for the CheckPackage\r |
| 681 | list of postprocessed shell arguments.\r |
| 682 | \r |
| a31bd33c |
683 | If CheckPackage is NULL, then return.\r |
| 94b17fa1 |
684 | \r |
| a31bd33c |
685 | @param CheckPackage The list to de-allocate.\r |
| 94b17fa1 |
686 | **/\r |
| 687 | VOID\r |
| 688 | EFIAPI\r |
| 689 | ShellCommandLineFreeVarList (\r |
| 690 | IN LIST_ENTRY *CheckPackage\r |
| 691 | );\r |
| 692 | \r |
| 693 | /**\r |
| a31bd33c |
694 | Checks for presence of a flag parameter.\r |
| 94b17fa1 |
695 | \r |
| 696 | flag arguments are in the form of "-<Key>" or "/<Key>", but do not have a value following the key\r |
| 697 | \r |
| 698 | if CheckPackage is NULL then return FALSE.\r |
| a31bd33c |
699 | if KeyString is NULL then ASSERT().\r |
| 94b17fa1 |
700 | \r |
| a31bd33c |
701 | @param CheckPackage The package of parsed command line arguments.\r |
| 702 | @param KeyString The Key of the command line argument to check for.\r |
| 94b17fa1 |
703 | \r |
| a31bd33c |
704 | @retval TRUE The flag is on the command line.\r |
| 705 | @retval FALSE The flag is not on the command line.\r |
| 94b17fa1 |
706 | **/\r |
| 707 | BOOLEAN\r |
| 708 | EFIAPI\r |
| 709 | ShellCommandLineGetFlag (\r |
| 710 | IN CONST LIST_ENTRY *CheckPackage,\r |
| 711 | IN CHAR16 *KeyString\r |
| 712 | );\r |
| 713 | \r |
| 714 | /**\r |
| a31bd33c |
715 | Returns value from command line argument.\r |
| 94b17fa1 |
716 | \r |
| a31bd33c |
717 | Value parameters are in the form of "-<Key> value" or "/<Key> value"\r |
| 94b17fa1 |
718 | \r |
| a31bd33c |
719 | If CheckPackage is NULL, then return NULL.\r |
| 94b17fa1 |
720 | \r |
| a31bd33c |
721 | @param CheckPackage The package of parsed command line arguments.\r |
| 722 | @param KeyString The Key of the command line argument to check for.\r |
| 94b17fa1 |
723 | \r |
| a31bd33c |
724 | @retval NULL The flag is not on the command line.\r |
| 725 | @retval !=NULL Pointer to unicode string of the value.\r |
| 94b17fa1 |
726 | **/\r |
| 727 | CONST CHAR16*\r |
| 728 | EFIAPI\r |
| 729 | ShellCommandLineGetValue (\r |
| 730 | IN CONST LIST_ENTRY *CheckPackage,\r |
| 731 | IN CHAR16 *KeyString\r |
| 732 | );\r |
| 733 | \r |
| 734 | /**\r |
| a31bd33c |
735 | Returns raw value from command line argument.\r |
| 94b17fa1 |
736 | \r |
| a31bd33c |
737 | Raw value parameters are in the form of "value" in a specific position in the list.\r |
| 94b17fa1 |
738 | \r |
| a31bd33c |
739 | If CheckPackage is NULL, then return NULL;\r |
| 94b17fa1 |
740 | \r |
| a31bd33c |
741 | @param CheckPackage The package of parsed command line arguments.\r |
| 742 | @param Position The position of the value.\r |
| 94b17fa1 |
743 | \r |
| a31bd33c |
744 | @retval NULL The flag is not on the command line.\r |
| 745 | @retval !=NULL Pointer to unicode string of the value.\r |
| 94b17fa1 |
746 | **/\r |
| 747 | CONST CHAR16*\r |
| 748 | EFIAPI\r |
| 749 | ShellCommandLineGetRawValue (\r |
| 750 | IN CONST LIST_ENTRY *CheckPackage,\r |
| 751 | IN UINT32 Position\r |
| 752 | );\r |
| 753 | \r |
| 2247dde4 |
754 | /**\r |
| a31bd33c |
755 | Returns the number of command line value parameters that were parsed. \r |
| 2247dde4 |
756 | \r |
| a31bd33c |
757 | This will not include flags.\r |
| 2247dde4 |
758 | \r |
| 759 | @retval (UINTN)-1 No parsing has ocurred\r |
| a31bd33c |
760 | @return The number of value parameters found\r |
| 2247dde4 |
761 | **/\r |
| 762 | UINTN\r |
| 763 | EFIAPI\r |
| 764 | ShellCommandLineGetCount(\r |
| 765 | VOID\r |
| 766 | );\r |
| 767 | \r |
| d2b4564b |
768 | /**\r |
| 769 | This function causes the shell library to initialize itself. If the shell library\r |
| 770 | is already initialized it will de-initialize all the current protocol poitners and\r |
| 771 | re-populate them again.\r |
| 772 | \r |
| 773 | When the library is used with PcdShellLibAutoInitialize set to true this function\r |
| 774 | will return EFI_SUCCESS and perform no actions.\r |
| 775 | \r |
| 776 | This function is intended for internal access for shell commands only.\r |
| 777 | \r |
| 778 | @retval EFI_SUCCESS the initialization was complete sucessfully\r |
| 779 | \r |
| 780 | **/\r |
| 781 | EFI_STATUS\r |
| 782 | EFIAPI\r |
| 783 | ShellInitialize (\r |
| 125c2cf4 |
784 | VOID\r |
| d2b4564b |
785 | );\r |
| 786 | \r |
| b1f95a06 |
787 | /**\r |
| 788 | Print at a specific location on the screen.\r |
| 789 | \r |
| 790 | This function will move the cursor to a given screen location, print the specified string, \r |
| a31bd33c |
791 | and return the cursor to the original location. \r |
| b1f95a06 |
792 | \r |
| 793 | If -1 is specified for either the Row or Col the current screen location for BOTH \r |
| 794 | will be used and the cursor's position will not be moved back to an original location.\r |
| 795 | \r |
| a31bd33c |
796 | If either Row or Col is out of range for the current console, then ASSERT.\r |
| 797 | If Format is NULL, then ASSERT.\r |
| b1f95a06 |
798 | \r |
| 799 | In addition to the standard %-based flags as supported by UefiLib Print() this supports \r |
| 800 | the following additional flags:\r |
| 801 | %N - Set output attribute to normal\r |
| 802 | %H - Set output attribute to highlight\r |
| 803 | %E - Set output attribute to error\r |
| 804 | %B - Set output attribute to blue color\r |
| 805 | %V - Set output attribute to green color\r |
| 806 | \r |
| 807 | Note: The background color is controlled by the shell command cls.\r |
| 808 | \r |
| 809 | @param[in] Row the row to print at\r |
| 810 | @param[in] Col the column to print at\r |
| 811 | @param[in] Format the format string\r |
| 812 | \r |
| 813 | @return the number of characters printed to the screen\r |
| 814 | **/\r |
| 815 | \r |
| 816 | UINTN\r |
| 817 | EFIAPI\r |
| 818 | ShellPrintEx(\r |
| 819 | IN INT32 Col OPTIONAL,\r |
| 820 | IN INT32 Row OPTIONAL,\r |
| 821 | IN CONST CHAR16 *Format,\r |
| 822 | ...\r |
| 823 | );\r |
| 824 | \r |
| 2247dde4 |
825 | /**\r |
| 826 | Print at a specific location on the screen.\r |
| 827 | \r |
| 828 | This function will move the cursor to a given screen location, print the specified string, \r |
| 829 | and return the cursor to the original locaiton. \r |
| 830 | \r |
| 831 | If -1 is specified for either the Row or Col the current screen location for BOTH \r |
| 832 | will be used and the cursor's position will not be moved back to an original location.\r |
| 833 | \r |
| 834 | if either Row or Col is out of range for the current console, then ASSERT\r |
| 835 | if Format is NULL, then ASSERT\r |
| 836 | \r |
| 837 | In addition to the standard %-based flags as supported by UefiLib Print() this supports \r |
| 838 | the following additional flags:\r |
| 839 | %N - Set output attribute to normal\r |
| 840 | %H - Set output attribute to highlight\r |
| 841 | %E - Set output attribute to error\r |
| 842 | %B - Set output attribute to blue color\r |
| 843 | %V - Set output attribute to green color\r |
| 844 | \r |
| 845 | Note: The background color is controlled by the shell command cls.\r |
| 846 | \r |
| 847 | @param[in] Row the row to print at\r |
| 848 | @param[in] Col the column to print at\r |
| 849 | @param[in] HiiFormatStringId the format string Id for getting from Hii\r |
| 850 | @param[in] HiiFormatHandle the format string Handle for getting from Hii\r |
| 851 | \r |
| 852 | @return the number of characters printed to the screen\r |
| 853 | **/\r |
| 854 | UINTN\r |
| 855 | EFIAPI\r |
| 856 | ShellPrintHiiEx(\r |
| 857 | IN INT32 Col OPTIONAL,\r |
| 858 | IN INT32 Row OPTIONAL,\r |
| 859 | IN CONST EFI_STRING_ID HiiFormatStringId,\r |
| 860 | IN CONST EFI_HANDLE HiiFormatHandle,\r |
| 861 | ...\r |
| 862 | );\r |
| 863 | \r |
| 864 | /**\r |
| a31bd33c |
865 | Function to determine if a given filename represents a directory.\r |
| 2247dde4 |
866 | \r |
| 867 | @param[in] DirName Path to directory to test.\r |
| 868 | \r |
| a31bd33c |
869 | @retval EFI_SUCCESS The Path represents a directory.\r |
| 870 | @retval EFI_NOT_FOUND The Path does not represent a directory.\r |
| 871 | @retval other The path failed to open.\r |
| 2247dde4 |
872 | **/\r |
| 873 | EFI_STATUS\r |
| 874 | EFIAPI\r |
| 875 | ShellIsDirectory(\r |
| 876 | IN CONST CHAR16 *DirName\r |
| 877 | );\r |
| 878 | \r |
| a31bd33c |
879 | /**\r |
| 880 | Function to determine if a given filename represents a file.\r |
| 881 | \r |
| 882 | @param[in] Name Path to file to test.\r |
| 883 | \r |
| 884 | @retval EFI_SUCCESS The Path represents a file.\r |
| 885 | @retval EFI_NOT_FOUND The Path does not represent a file.\r |
| 886 | @retval other The path failed to open.\r |
| 887 | **/\r |
| 888 | EFI_STATUS\r |
| 889 | EFIAPI\r |
| 890 | ShellIsFile(\r |
| 891 | IN CONST CHAR16 *Name\r |
| 892 | );\r |
| 893 | \r |
| 125c2cf4 |
894 | /**\r |
| 895 | Function to determine whether a string is decimal or hex representation of a number \r |
| 896 | and return the number converted from the string.\r |
| 897 | \r |
| 898 | @param[in] String String representation of a number\r |
| 899 | \r |
| a31bd33c |
900 | @return The unsigned integer result of the conversion.\r |
| 125c2cf4 |
901 | **/\r |
| 902 | UINTN\r |
| 903 | EFIAPI\r |
| 904 | ShellStrToUintn(\r |
| 905 | IN CONST CHAR16 *String\r |
| 906 | );\r |
| 907 | \r |
| 908 | /**\r |
| 909 | Safely append with automatic string resizing given length of Destination and \r |
| 910 | desired length of copy from Source.\r |
| 911 | \r |
| a31bd33c |
912 | Append the first D characters of Source to the end of Destination, where D is \r |
| 125c2cf4 |
913 | the lesser of Count and the StrLen() of Source. If appending those D characters \r |
| 914 | will fit within Destination (whose Size is given as CurrentSize) and \r |
| 915 | still leave room for a null terminator, then those characters are appended, \r |
| 916 | starting at the original terminating null of Destination, and a new terminating \r |
| 917 | null is appended.\r |
| 918 | \r |
| 919 | If appending D characters onto Destination will result in a overflow of the size\r |
| 920 | given in CurrentSize the string will be grown such that the copy can be performed\r |
| 921 | and CurrentSize will be updated to the new size.\r |
| 922 | \r |
| 923 | If Source is NULL, there is nothing to append, just return the current buffer in \r |
| 924 | Destination.\r |
| 925 | \r |
| a31bd33c |
926 | if Destination is NULL, then ASSERT().\r |
| 125c2cf4 |
927 | if Destination's current length (including NULL terminator) is already more then \r |
| a31bd33c |
928 | CurrentSize, then ASSERT().\r |
| 125c2cf4 |
929 | \r |
| a31bd33c |
930 | @param[in,out] Destination The String to append onto.\r |
| 931 | @param[in,out] CurrentSize On call the number of bytes in Destination. On \r |
| 125c2cf4 |
932 | return possibly the new size (still in bytes). if NULL\r |
| 933 | then allocate whatever is needed.\r |
| a31bd33c |
934 | @param[in] Source The String to append from.\r |
| 935 | @param[in] Count Maximum number of characters to append. If 0 then \r |
| 125c2cf4 |
936 | all are appended.\r |
| 937 | \r |
| a31bd33c |
938 | @return the Destination after apending the Source.\r |
| 125c2cf4 |
939 | **/\r |
| 940 | CHAR16* \r |
| 941 | EFIAPI\r |
| 942 | StrnCatGrow (\r |
| 943 | IN OUT CHAR16 **Destination,\r |
| 944 | IN OUT UINTN *CurrentSize,\r |
| 945 | IN CONST CHAR16 *Source,\r |
| 946 | IN UINTN Count\r |
| 947 | );\r |
| 2247dde4 |
948 | \r |
| e9880e25 |
949 | #endif // __SHELL_LIB__\r |
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