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a405b86d | 1 | /** @file\r |
2 | Provides interface to shell internal functions for shell commands.\r | |
3 | \r | |
1a63ec8f | 4 | Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>\r |
a405b86d | 5 | 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 | #include "UefiShellCommandLib.h"\r | |
16 | \r | |
17 | /// The tag for use in identifying UNICODE files.\r | |
18 | /// If the file is UNICODE, the first 16 bits of the file will equal this value.\r | |
19 | enum {\r | |
1a63ec8f | 20 | gUnicodeFileTag = 0xFEFF\r |
a405b86d | 21 | };\r |
22 | \r | |
23 | // STATIC local variables\r | |
24 | STATIC SHELL_COMMAND_INTERNAL_LIST_ENTRY mCommandList;\r | |
25 | STATIC SCRIPT_FILE_LIST mScriptList;\r | |
26 | STATIC ALIAS_LIST mAliasList;\r | |
27 | STATIC BOOLEAN mEchoState;\r | |
28 | STATIC BOOLEAN mExitRequested;\r | |
29 | STATIC BOOLEAN mExitScript;\r | |
30 | STATIC CHAR16 *mProfileList;\r | |
31 | STATIC UINTN mProfileListSize;\r | |
32 | STATIC UINTN mFsMaxCount = 0;\r | |
33 | STATIC UINTN mBlkMaxCount = 0;\r | |
34 | STATIC BUFFER_LIST mFileHandleList;\r | |
35 | \r | |
36 | // global variables required by library class.\r | |
37 | EFI_SHELL_PROTOCOL *gEfiShellProtocol = NULL;\r | |
38 | EFI_SHELL_PARAMETERS_PROTOCOL *gEfiShellParametersProtocol = NULL;\r | |
39 | EFI_UNICODE_COLLATION_PROTOCOL *gUnicodeCollation = NULL;\r | |
40 | EFI_DEVICE_PATH_TO_TEXT_PROTOCOL *gDevPathToText = NULL;\r | |
41 | SHELL_MAP_LIST gShellMapList;\r | |
42 | SHELL_MAP_LIST *gShellCurDir = NULL;\r | |
43 | \r | |
44 | CONST CHAR16* SupportLevel[] = {\r | |
45 | L"Minimal",\r | |
46 | L"Scripting",\r | |
47 | L"Basic",\r | |
48 | L"Interactive"\r | |
49 | };\r | |
50 | \r | |
51 | /**\r | |
52 | Function to make sure that the global protocol pointers are valid.\r | |
53 | must be called after constructor before accessing the pointers.\r | |
54 | **/\r | |
55 | EFI_STATUS\r | |
56 | EFIAPI\r | |
57 | CommandInit(\r | |
58 | VOID\r | |
59 | )\r | |
60 | {\r | |
61 | EFI_STATUS Status;\r | |
62 | if (gEfiShellParametersProtocol == NULL) {\r | |
63 | Status = gBS->OpenProtocol(gImageHandle,\r | |
64 | &gEfiShellParametersProtocolGuid,\r | |
65 | (VOID **)&gEfiShellParametersProtocol,\r | |
66 | gImageHandle,\r | |
67 | NULL,\r | |
68 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
69 | );\r | |
70 | if (EFI_ERROR(Status)) {\r | |
71 | return (EFI_DEVICE_ERROR);\r | |
72 | }\r | |
73 | }\r | |
74 | if (gEfiShellProtocol == NULL) {\r | |
75 | Status = gBS->LocateProtocol(&gEfiShellProtocolGuid, NULL, (VOID**)&gEfiShellProtocol);\r | |
76 | if (EFI_ERROR(Status)) {\r | |
77 | return (EFI_DEVICE_ERROR);\r | |
78 | }\r | |
79 | }\r | |
80 | if (gUnicodeCollation == NULL) {\r | |
81 | Status = gBS->LocateProtocol(&gEfiUnicodeCollation2ProtocolGuid, NULL, (VOID**)&gUnicodeCollation);\r | |
82 | if (EFI_ERROR(Status)) {\r | |
83 | return (EFI_DEVICE_ERROR);\r | |
84 | }\r | |
85 | }\r | |
86 | if (gDevPathToText == NULL) {\r | |
87 | Status = gBS->LocateProtocol(&gEfiDevicePathToTextProtocolGuid, NULL, (VOID**)&gDevPathToText);\r | |
88 | if (EFI_ERROR(Status)) {\r | |
89 | return (EFI_DEVICE_ERROR);\r | |
90 | }\r | |
91 | }\r | |
92 | return (EFI_SUCCESS);\r | |
93 | }\r | |
94 | \r | |
95 | /**\r | |
96 | Constructor for the Shell Command library.\r | |
97 | \r | |
98 | Initialize the library and determine if the underlying is a UEFI Shell 2.0 or an EFI shell.\r | |
99 | \r | |
100 | @param ImageHandle the image handle of the process\r | |
101 | @param SystemTable the EFI System Table pointer\r | |
102 | \r | |
103 | @retval EFI_SUCCESS the initialization was complete sucessfully\r | |
104 | **/\r | |
105 | RETURN_STATUS\r | |
106 | EFIAPI\r | |
107 | ShellCommandLibConstructor (\r | |
108 | IN EFI_HANDLE ImageHandle,\r | |
109 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
110 | )\r | |
111 | {\r | |
112 | EFI_STATUS Status;\r | |
113 | InitializeListHead(&gShellMapList.Link);\r | |
114 | InitializeListHead(&mCommandList.Link);\r | |
115 | InitializeListHead(&mAliasList.Link);\r | |
116 | InitializeListHead(&mScriptList.Link);\r | |
117 | InitializeListHead(&mFileHandleList.Link);\r | |
118 | mEchoState = TRUE;\r | |
119 | \r | |
120 | mExitRequested = FALSE;\r | |
121 | mExitScript = FALSE;\r | |
122 | mProfileListSize = 0;\r | |
123 | mProfileList = NULL;\r | |
124 | \r | |
125 | if (gUnicodeCollation == NULL) {\r | |
126 | Status = gBS->LocateProtocol(&gEfiUnicodeCollation2ProtocolGuid, NULL, (VOID**)&gUnicodeCollation);\r | |
127 | if (EFI_ERROR(Status)) {\r | |
128 | return (EFI_DEVICE_ERROR);\r | |
129 | }\r | |
130 | }\r | |
131 | \r | |
132 | return (RETURN_SUCCESS);\r | |
133 | }\r | |
134 | \r | |
135 | /**\r | |
136 | Destructor for the library. free any resources.\r | |
137 | \r | |
138 | @param ImageHandle the image handle of the process\r | |
139 | @param SystemTable the EFI System Table pointer\r | |
140 | \r | |
141 | @retval RETURN_SUCCESS this function always returns success\r | |
142 | **/\r | |
143 | RETURN_STATUS\r | |
144 | EFIAPI\r | |
145 | ShellCommandLibDestructor (\r | |
146 | IN EFI_HANDLE ImageHandle,\r | |
147 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
148 | )\r | |
149 | {\r | |
150 | SHELL_COMMAND_INTERNAL_LIST_ENTRY *Node;\r | |
151 | COMMAND_LIST *Node2;\r | |
152 | SCRIPT_FILE_LIST *Node3;\r | |
153 | SHELL_MAP_LIST *MapNode;\r | |
154 | //\r | |
155 | // enumerate throught the list and free all the memory\r | |
156 | //\r | |
157 | while (!IsListEmpty (&mCommandList.Link)) {\r | |
158 | Node = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetFirstNode(&mCommandList.Link);\r | |
159 | RemoveEntryList(&Node->Link);\r | |
160 | SHELL_FREE_NON_NULL(Node->CommandString);\r | |
161 | FreePool(Node);\r | |
162 | DEBUG_CODE(Node = NULL;);\r | |
163 | }\r | |
164 | \r | |
165 | //\r | |
166 | // enumerate through the init command list and free all memory\r | |
167 | //\r | |
168 | while (!IsListEmpty (&mAliasList.Link)) {\r | |
169 | Node2 = (COMMAND_LIST *)GetFirstNode(&mAliasList.Link);\r | |
170 | RemoveEntryList(&Node2->Link);\r | |
171 | SHELL_FREE_NON_NULL(Node2->CommandString);\r | |
172 | FreePool(Node2);\r | |
173 | DEBUG_CODE(Node2 = NULL;);\r | |
174 | }\r | |
175 | \r | |
176 | //\r | |
177 | // enumerate throught the list and free all the memory\r | |
178 | //\r | |
179 | while (!IsListEmpty (&mScriptList.Link)) {\r | |
180 | Node3 = (SCRIPT_FILE_LIST *)GetFirstNode(&mScriptList.Link);\r | |
181 | RemoveEntryList(&Node3->Link);\r | |
182 | DeleteScriptFileStruct(Node3->Data);\r | |
183 | FreePool(Node3);\r | |
184 | }\r | |
185 | \r | |
186 | //\r | |
187 | // enumerate throught the mappings list and free all the memory\r | |
188 | //\r | |
189 | if (!IsListEmpty(&gShellMapList.Link)) {\r | |
190 | for (MapNode = (SHELL_MAP_LIST *)GetFirstNode(&gShellMapList.Link)\r | |
191 | ; !IsListEmpty (&gShellMapList.Link)\r | |
192 | ; MapNode = (SHELL_MAP_LIST *)GetFirstNode(&gShellMapList.Link)\r | |
193 | ){\r | |
194 | ASSERT(MapNode != NULL);\r | |
195 | RemoveEntryList(&MapNode->Link);\r | |
196 | SHELL_FREE_NON_NULL(MapNode->DevicePath);\r | |
197 | SHELL_FREE_NON_NULL(MapNode->MapName);\r | |
198 | SHELL_FREE_NON_NULL(MapNode->CurrentDirectoryPath);\r | |
199 | FreePool(MapNode);\r | |
200 | }\r | |
201 | }\r | |
202 | if (!IsListEmpty(&mFileHandleList.Link)){\r | |
203 | FreeBufferList(&mFileHandleList);\r | |
204 | }\r | |
205 | \r | |
206 | if (mProfileList != NULL) {\r | |
207 | FreePool(mProfileList);\r | |
208 | }\r | |
209 | \r | |
1a63ec8f | 210 | gEfiShellProtocol = NULL;\r |
211 | gEfiShellParametersProtocol = NULL;\r | |
212 | gUnicodeCollation = NULL;\r | |
213 | gDevPathToText = NULL;\r | |
214 | gShellCurDir = NULL;\r | |
215 | \r | |
a405b86d | 216 | return (RETURN_SUCCESS);\r |
217 | }\r | |
218 | \r | |
219 | /**\r | |
220 | Checks if a command is already on the list.\r | |
221 | \r | |
222 | @param[in] CommandString The command string to check for on the list.\r | |
223 | **/\r | |
224 | BOOLEAN\r | |
225 | EFIAPI\r | |
226 | ShellCommandIsCommandOnList (\r | |
227 | IN CONST CHAR16 *CommandString\r | |
228 | )\r | |
229 | {\r | |
230 | SHELL_COMMAND_INTERNAL_LIST_ENTRY *Node;\r | |
231 | \r | |
232 | //\r | |
233 | // assert for NULL parameter\r | |
234 | //\r | |
235 | ASSERT(CommandString != NULL);\r | |
236 | \r | |
237 | //\r | |
238 | // check for the command\r | |
239 | //\r | |
240 | for ( Node = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetFirstNode(&mCommandList.Link)\r | |
241 | ; !IsNull(&mCommandList.Link, &Node->Link)\r | |
242 | ; Node = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetNextNode(&mCommandList.Link, &Node->Link)\r | |
243 | ){\r | |
244 | ASSERT(Node->CommandString != NULL);\r | |
245 | if (gUnicodeCollation->StriColl(\r | |
246 | gUnicodeCollation,\r | |
247 | (CHAR16*)CommandString,\r | |
248 | Node->CommandString) == 0\r | |
249 | ){\r | |
250 | return (TRUE);\r | |
251 | }\r | |
252 | }\r | |
253 | return (FALSE);\r | |
254 | }\r | |
255 | \r | |
256 | /**\r | |
257 | Get the help text for a command.\r | |
258 | \r | |
259 | @param[in] CommandString The command name.\r | |
260 | \r | |
261 | @retval NULL No help text was found.\r | |
262 | @return String of help text. Caller reuiqred to free.\r | |
263 | **/\r | |
264 | CHAR16*\r | |
265 | EFIAPI\r | |
266 | ShellCommandGetCommandHelp (\r | |
267 | IN CONST CHAR16 *CommandString\r | |
268 | )\r | |
269 | {\r | |
270 | SHELL_COMMAND_INTERNAL_LIST_ENTRY *Node;\r | |
271 | \r | |
272 | //\r | |
273 | // assert for NULL parameter\r | |
274 | //\r | |
275 | ASSERT(CommandString != NULL);\r | |
276 | \r | |
277 | //\r | |
278 | // check for the command\r | |
279 | //\r | |
280 | for ( Node = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetFirstNode(&mCommandList.Link)\r | |
281 | ; !IsNull(&mCommandList.Link, &Node->Link)\r | |
282 | ; Node = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetNextNode(&mCommandList.Link, &Node->Link)\r | |
283 | ){\r | |
284 | ASSERT(Node->CommandString != NULL);\r | |
285 | if (gUnicodeCollation->StriColl(\r | |
286 | gUnicodeCollation,\r | |
287 | (CHAR16*)CommandString,\r | |
288 | Node->CommandString) == 0\r | |
289 | ){\r | |
290 | return (HiiGetString(Node->HiiHandle, Node->ManFormatHelp, NULL));\r | |
291 | }\r | |
292 | }\r | |
293 | return (NULL);\r | |
294 | }\r | |
295 | \r | |
296 | /**\r | |
297 | Registers handlers of type SHELL_RUN_COMMAND and\r | |
298 | SHELL_GET_MAN_FILENAME for each shell command.\r | |
299 | \r | |
300 | If the ShellSupportLevel is greater than the value of the\r | |
301 | PcdShellSupportLevel then return RETURN_UNSUPPORTED.\r | |
302 | \r | |
303 | Registers the handlers specified by GetHelpInfoHandler and CommandHandler\r | |
304 | with the command specified by CommandString. If the command named by\r | |
305 | CommandString has already been registered, then return\r | |
306 | RETURN_ALREADY_STARTED.\r | |
307 | \r | |
308 | If there are not enough resources available to register the handlers then\r | |
309 | RETURN_OUT_OF_RESOURCES is returned.\r | |
310 | \r | |
311 | If CommandString is NULL, then ASSERT().\r | |
312 | If GetHelpInfoHandler is NULL, then ASSERT().\r | |
313 | If CommandHandler is NULL, then ASSERT().\r | |
314 | If ProfileName is NULL, then ASSERT().\r | |
315 | \r | |
316 | @param[in] CommandString Pointer to the command name. This is the\r | |
317 | name to look for on the command line in\r | |
318 | the shell.\r | |
319 | @param[in] CommandHandler Pointer to a function that runs the\r | |
320 | specified command.\r | |
321 | @param[in] GetManFileName Pointer to a function that provides man\r | |
322 | filename.\r | |
323 | @param[in] ShellMinSupportLevel minimum Shell Support Level which has this\r | |
324 | function.\r | |
325 | @param[in] ProfileName profile name to require for support of this\r | |
326 | function.\r | |
327 | @param[in] CanAffectLE indicates whether this command's return value\r | |
328 | can change the LASTERROR environment variable.\r | |
329 | @param[in] HiiHandle Handle of this command's HII entry.\r | |
330 | @param[in] ManFormatHelp HII locator for the help text.\r | |
331 | \r | |
332 | @retval RETURN_SUCCESS The handlers were registered.\r | |
333 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources available to\r | |
334 | register the shell command.\r | |
335 | @retval RETURN_UNSUPPORTED the ShellMinSupportLevel was higher than the\r | |
336 | currently allowed support level.\r | |
337 | @retval RETURN_ALREADY_STARTED The CommandString represents a command that\r | |
338 | is already registered. Only 1 handler set for\r | |
339 | a given command is allowed.\r | |
340 | @sa SHELL_GET_MAN_FILENAME\r | |
341 | @sa SHELL_RUN_COMMAND\r | |
342 | **/\r | |
343 | RETURN_STATUS\r | |
344 | EFIAPI\r | |
345 | ShellCommandRegisterCommandName (\r | |
346 | IN CONST CHAR16 *CommandString,\r | |
347 | IN SHELL_RUN_COMMAND CommandHandler,\r | |
348 | IN SHELL_GET_MAN_FILENAME GetManFileName,\r | |
349 | IN UINT32 ShellMinSupportLevel,\r | |
350 | IN CONST CHAR16 *ProfileName,\r | |
351 | IN CONST BOOLEAN CanAffectLE,\r | |
352 | IN CONST EFI_HANDLE HiiHandle,\r | |
353 | IN CONST EFI_STRING_ID ManFormatHelp\r | |
354 | )\r | |
355 | {\r | |
356 | SHELL_COMMAND_INTERNAL_LIST_ENTRY *Node;\r | |
357 | \r | |
358 | //\r | |
359 | // ASSERTs for NULL parameters\r | |
360 | //\r | |
361 | ASSERT(CommandString != NULL);\r | |
362 | ASSERT(GetManFileName != NULL);\r | |
363 | ASSERT(CommandHandler != NULL);\r | |
364 | ASSERT(ProfileName != NULL);\r | |
365 | \r | |
366 | //\r | |
367 | // check for shell support level\r | |
368 | //\r | |
369 | if (PcdGet8(PcdShellSupportLevel) < ShellMinSupportLevel) {\r | |
370 | return (RETURN_UNSUPPORTED);\r | |
371 | }\r | |
372 | \r | |
373 | //\r | |
374 | // check for already on the list\r | |
375 | //\r | |
376 | if (ShellCommandIsCommandOnList(CommandString)) {\r | |
377 | return (RETURN_ALREADY_STARTED);\r | |
378 | }\r | |
379 | \r | |
380 | //\r | |
381 | // allocate memory for new struct\r | |
382 | //\r | |
1a63ec8f | 383 | Node = AllocateZeroPool(sizeof(SHELL_COMMAND_INTERNAL_LIST_ENTRY));\r |
a405b86d | 384 | ASSERT(Node != NULL);\r |
1a63ec8f | 385 | Node->CommandString = AllocateZeroPool(StrSize(CommandString));\r |
a405b86d | 386 | ASSERT(Node->CommandString != NULL);\r |
387 | \r | |
388 | //\r | |
389 | // populate the new struct\r | |
390 | //\r | |
391 | StrCpy(Node->CommandString, CommandString);\r | |
392 | \r | |
393 | Node->GetManFileName = GetManFileName;\r | |
394 | Node->CommandHandler = CommandHandler;\r | |
395 | Node->LastError = CanAffectLE;\r | |
396 | Node->HiiHandle = HiiHandle;\r | |
397 | Node->ManFormatHelp = ManFormatHelp;\r | |
398 | \r | |
399 | if ( StrLen(ProfileName)>0\r | |
400 | && ((mProfileList != NULL\r | |
401 | && StrStr(mProfileList, ProfileName) == NULL) || mProfileList == NULL)\r | |
402 | ){\r | |
403 | ASSERT((mProfileList == NULL && mProfileListSize == 0) || (mProfileList != NULL));\r | |
404 | if (mProfileList == NULL) {\r | |
405 | //\r | |
406 | // If this is the first make a leading ';'\r | |
407 | //\r | |
408 | StrnCatGrow(&mProfileList, &mProfileListSize, L";", 0);\r | |
409 | }\r | |
410 | StrnCatGrow(&mProfileList, &mProfileListSize, ProfileName, 0);\r | |
411 | StrnCatGrow(&mProfileList, &mProfileListSize, L";", 0);\r | |
412 | }\r | |
413 | \r | |
414 | //\r | |
415 | // add the new struct to the list\r | |
416 | //\r | |
417 | InsertTailList (&mCommandList.Link, &Node->Link);\r | |
418 | \r | |
419 | return (RETURN_SUCCESS);\r | |
420 | }\r | |
421 | \r | |
422 | /**\r | |
423 | Function to get the current Profile string.\r | |
424 | \r | |
425 | @retval NULL There are no installed profiles.\r | |
426 | @return A semi-colon delimited list of profiles.\r | |
427 | **/\r | |
428 | CONST CHAR16 *\r | |
429 | EFIAPI\r | |
430 | ShellCommandGetProfileList (\r | |
431 | VOID\r | |
432 | )\r | |
433 | {\r | |
434 | return (mProfileList);\r | |
435 | }\r | |
436 | \r | |
437 | /**\r | |
438 | Checks if a command string has been registered for CommandString and if so it runs\r | |
439 | the previously registered handler for that command with the command line.\r | |
440 | \r | |
441 | If CommandString is NULL, then ASSERT().\r | |
442 | \r | |
443 | If Sections is specified, then each section name listed will be compared in a casesensitive\r | |
444 | manner, to the section names described in Appendix B UEFI Shell 2.0 spec. If the section exists,\r | |
445 | it will be appended to the returned help text. If the section does not exist, no\r | |
446 | information will be returned. If Sections is NULL, then all help text information\r | |
447 | available will be returned.\r | |
448 | \r | |
a405b86d | 449 | @param[in] CommandString Pointer to the command name. This is the name\r |
450 | found on the command line in the shell.\r | |
451 | @param[in,out] RetVal Pointer to the return vaule from the command handler.\r | |
452 | \r | |
453 | @param[in,out] CanAffectLE indicates whether this command's return value\r | |
454 | needs to be placed into LASTERROR environment variable.\r | |
455 | \r | |
456 | @retval RETURN_SUCCESS The handler was run.\r | |
457 | @retval RETURN_NOT_FOUND The CommandString did not match a registered\r | |
458 | command name.\r | |
459 | @sa SHELL_RUN_COMMAND\r | |
460 | **/\r | |
461 | RETURN_STATUS\r | |
462 | EFIAPI\r | |
463 | ShellCommandRunCommandHandler (\r | |
464 | IN CONST CHAR16 *CommandString,\r | |
465 | IN OUT SHELL_STATUS *RetVal,\r | |
466 | IN OUT BOOLEAN *CanAffectLE OPTIONAL\r | |
467 | )\r | |
468 | {\r | |
469 | SHELL_COMMAND_INTERNAL_LIST_ENTRY *Node;\r | |
470 | \r | |
471 | //\r | |
472 | // assert for NULL parameters\r | |
473 | //\r | |
474 | ASSERT(CommandString != NULL);\r | |
475 | \r | |
476 | //\r | |
477 | // check for the command\r | |
478 | //\r | |
479 | for ( Node = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetFirstNode(&mCommandList.Link)\r | |
480 | ; !IsNull(&mCommandList.Link, &Node->Link)\r | |
481 | ; Node = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetNextNode(&mCommandList.Link, &Node->Link)\r | |
482 | ){\r | |
483 | ASSERT(Node->CommandString != NULL);\r | |
484 | if (gUnicodeCollation->StriColl(\r | |
485 | gUnicodeCollation,\r | |
486 | (CHAR16*)CommandString,\r | |
487 | Node->CommandString) == 0\r | |
488 | ){\r | |
489 | if (CanAffectLE != NULL) {\r | |
490 | *CanAffectLE = Node->LastError;\r | |
491 | }\r | |
492 | if (RetVal != NULL) {\r | |
493 | *RetVal = Node->CommandHandler(NULL, gST);\r | |
494 | } else {\r | |
495 | Node->CommandHandler(NULL, gST);\r | |
496 | }\r | |
497 | return (RETURN_SUCCESS);\r | |
498 | }\r | |
499 | }\r | |
500 | return (RETURN_NOT_FOUND);\r | |
501 | }\r | |
502 | \r | |
503 | /**\r | |
504 | Checks if a command string has been registered for CommandString and if so it\r | |
505 | returns the MAN filename specified for that command.\r | |
506 | \r | |
507 | If CommandString is NULL, then ASSERT().\r | |
508 | \r | |
509 | @param[in] CommandString Pointer to the command name. This is the name\r | |
510 | found on the command line in the shell.\\r | |
511 | \r | |
512 | @retval NULL the commandString was not a registered command.\r | |
513 | @return other the name of the MAN file.\r | |
514 | @sa SHELL_GET_MAN_FILENAME\r | |
515 | **/\r | |
516 | CONST CHAR16*\r | |
517 | EFIAPI\r | |
518 | ShellCommandGetManFileNameHandler (\r | |
519 | IN CONST CHAR16 *CommandString\r | |
520 | )\r | |
521 | {\r | |
522 | SHELL_COMMAND_INTERNAL_LIST_ENTRY *Node;\r | |
523 | \r | |
524 | //\r | |
525 | // assert for NULL parameters\r | |
526 | //\r | |
527 | ASSERT(CommandString != NULL);\r | |
528 | \r | |
529 | //\r | |
530 | // check for the command\r | |
531 | //\r | |
532 | for ( Node = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetFirstNode(&mCommandList.Link)\r | |
533 | ; !IsNull(&mCommandList.Link, &Node->Link)\r | |
534 | ; Node = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetNextNode(&mCommandList.Link, &Node->Link)\r | |
535 | ){\r | |
536 | ASSERT(Node->CommandString != NULL);\r | |
537 | if (gUnicodeCollation->StriColl(\r | |
538 | gUnicodeCollation,\r | |
539 | (CHAR16*)CommandString,\r | |
540 | Node->CommandString) == 0\r | |
541 | ){\r | |
542 | return (Node->GetManFileName());\r | |
543 | }\r | |
544 | }\r | |
545 | return (NULL);\r | |
546 | }\r | |
547 | \r | |
548 | /**\r | |
549 | Get the list of all available shell internal commands. This is a linked list\r | |
550 | (via LIST_ENTRY structure). enumerate through it using the BaseLib linked\r | |
551 | list functions. do not modify the values.\r | |
552 | \r | |
1a63ec8f | 553 | @param[in] Sort TRUE to alphabetically sort the values first. FALSE otherwise.\r |
554 | \r | |
a405b86d | 555 | @return a Linked list of all available shell commands.\r |
556 | **/\r | |
557 | CONST COMMAND_LIST*\r | |
558 | EFIAPI\r | |
559 | ShellCommandGetCommandList (\r | |
1a63ec8f | 560 | IN CONST BOOLEAN Sort\r |
a405b86d | 561 | )\r |
562 | {\r | |
1a63ec8f | 563 | // if (!Sort) {\r |
564 | // return ((COMMAND_LIST*)(&mCommandList));\r | |
565 | // }\r | |
a405b86d | 566 | return ((COMMAND_LIST*)(&mCommandList));\r |
567 | }\r | |
568 | \r | |
569 | /**\r | |
570 | Registers aliases to be set as part of the initialization of the shell application.\r | |
571 | \r | |
572 | If Command is NULL, then ASSERT().\r | |
573 | If Alias is NULL, then ASSERT().\r | |
574 | \r | |
575 | @param[in] Command Pointer to the Command\r | |
576 | @param[in] Alias Pointer to Alias\r | |
577 | \r | |
578 | @retval RETURN_SUCCESS The handlers were registered.\r | |
579 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources available to\r | |
580 | register the shell command.\r | |
581 | **/\r | |
582 | RETURN_STATUS\r | |
583 | EFIAPI\r | |
584 | ShellCommandRegisterAlias (\r | |
585 | IN CONST CHAR16 *Command,\r | |
586 | IN CONST CHAR16 *Alias\r | |
587 | )\r | |
588 | {\r | |
589 | ALIAS_LIST *Node;\r | |
590 | \r | |
591 | //\r | |
592 | // Asserts for NULL\r | |
593 | //\r | |
594 | ASSERT(Command != NULL);\r | |
595 | ASSERT(Alias != NULL);\r | |
596 | \r | |
597 | //\r | |
598 | // allocate memory for new struct\r | |
599 | //\r | |
1a63ec8f | 600 | Node = AllocateZeroPool(sizeof(ALIAS_LIST));\r |
a405b86d | 601 | ASSERT(Node != NULL);\r |
1a63ec8f | 602 | Node->CommandString = AllocateZeroPool(StrSize(Command));\r |
603 | Node->Alias = AllocateZeroPool(StrSize(Alias));\r | |
a405b86d | 604 | ASSERT(Node->CommandString != NULL);\r |
605 | ASSERT(Node->Alias != NULL);\r | |
606 | \r | |
607 | //\r | |
608 | // populate the new struct\r | |
609 | //\r | |
610 | StrCpy(Node->CommandString, Command);\r | |
611 | StrCpy(Node->Alias , Alias );\r | |
612 | \r | |
613 | //\r | |
614 | // add the new struct to the list\r | |
615 | //\r | |
616 | InsertTailList (&mAliasList.Link, &Node->Link);\r | |
617 | \r | |
618 | return (RETURN_SUCCESS);\r | |
619 | }\r | |
620 | \r | |
621 | /**\r | |
622 | Get the list of all shell alias commands. This is a linked list\r | |
623 | (via LIST_ENTRY structure). enumerate through it using the BaseLib linked\r | |
624 | list functions. do not modify the values.\r | |
625 | \r | |
626 | @return a Linked list of all requested shell alias'.\r | |
627 | **/\r | |
628 | CONST ALIAS_LIST*\r | |
629 | EFIAPI\r | |
630 | ShellCommandGetInitAliasList (\r | |
631 | VOID\r | |
632 | )\r | |
633 | {\r | |
634 | return (&mAliasList);\r | |
635 | }\r | |
636 | \r | |
637 | /**\r | |
1a63ec8f | 638 | Determine if a given alias is on the list of built in alias'.\r |
a405b86d | 639 | \r |
640 | @param[in] Alias The alias to test for\r | |
641 | \r | |
642 | @retval TRUE The alias is a built in alias\r | |
643 | @retval FALSE The alias is not a built in alias\r | |
644 | **/\r | |
645 | BOOLEAN\r | |
646 | EFIAPI\r | |
647 | ShellCommandIsOnAliasList(\r | |
648 | IN CONST CHAR16 *Alias\r | |
649 | )\r | |
650 | {\r | |
651 | ALIAS_LIST *Node;\r | |
652 | \r | |
653 | //\r | |
654 | // assert for NULL parameter\r | |
655 | //\r | |
656 | ASSERT(Alias != NULL);\r | |
657 | \r | |
658 | //\r | |
659 | // check for the Alias\r | |
660 | //\r | |
661 | for ( Node = (ALIAS_LIST *)GetFirstNode(&mAliasList.Link)\r | |
662 | ; !IsNull(&mAliasList.Link, &Node->Link)\r | |
663 | ; Node = (ALIAS_LIST *)GetNextNode(&mAliasList.Link, &Node->Link)\r | |
664 | ){\r | |
665 | ASSERT(Node->CommandString != NULL);\r | |
666 | ASSERT(Node->Alias != NULL);\r | |
667 | if (gUnicodeCollation->StriColl(\r | |
668 | gUnicodeCollation,\r | |
669 | (CHAR16*)Alias,\r | |
670 | Node->CommandString) == 0\r | |
671 | ){\r | |
672 | return (TRUE);\r | |
673 | }\r | |
674 | if (gUnicodeCollation->StriColl(\r | |
675 | gUnicodeCollation,\r | |
676 | (CHAR16*)Alias,\r | |
677 | Node->Alias) == 0\r | |
678 | ){\r | |
679 | return (TRUE);\r | |
680 | }\r | |
681 | }\r | |
682 | return (FALSE);\r | |
683 | }\r | |
684 | \r | |
685 | /**\r | |
686 | Function to determine current state of ECHO. Echo determins if lines from scripts\r | |
687 | and ECHO commands are enabled.\r | |
688 | \r | |
689 | @retval TRUE Echo is currently enabled\r | |
690 | @retval FALSE Echo is currently disabled\r | |
691 | **/\r | |
692 | BOOLEAN\r | |
693 | EFIAPI\r | |
694 | ShellCommandGetEchoState(\r | |
695 | VOID\r | |
696 | )\r | |
697 | {\r | |
698 | return (mEchoState);\r | |
699 | }\r | |
700 | \r | |
701 | /**\r | |
702 | Function to set current state of ECHO. Echo determins if lines from scripts\r | |
703 | and ECHO commands are enabled.\r | |
704 | \r | |
705 | If State is TRUE, Echo will be enabled.\r | |
706 | If State is FALSE, Echo will be disabled.\r | |
1a63ec8f | 707 | \r |
708 | @param[in] State How to set echo.\r | |
a405b86d | 709 | **/\r |
710 | VOID\r | |
711 | EFIAPI\r | |
712 | ShellCommandSetEchoState(\r | |
713 | IN BOOLEAN State\r | |
714 | )\r | |
715 | {\r | |
716 | mEchoState = State;\r | |
717 | }\r | |
718 | \r | |
719 | /**\r | |
720 | Indicate that the current shell or script should exit.\r | |
721 | \r | |
722 | @param[in] ScriptOnly TRUE if only exiting a script, FALSE othrwise.\r | |
723 | **/\r | |
724 | VOID\r | |
725 | EFIAPI\r | |
726 | ShellCommandRegisterExit (\r | |
727 | IN BOOLEAN ScriptOnly\r | |
728 | )\r | |
729 | {\r | |
730 | mExitRequested = (BOOLEAN)(!mExitRequested);\r | |
731 | if (mExitRequested) {\r | |
732 | mExitScript = ScriptOnly;\r | |
733 | } else {\r | |
734 | mExitScript = FALSE;\r | |
735 | }\r | |
736 | }\r | |
737 | \r | |
738 | /**\r | |
739 | Retrieve the Exit indicator.\r | |
740 | \r | |
741 | @retval TRUE Exit was indicated.\r | |
742 | @retval FALSE Exis was not indicated.\r | |
743 | **/\r | |
744 | BOOLEAN\r | |
745 | EFIAPI\r | |
746 | ShellCommandGetExit (\r | |
747 | VOID\r | |
748 | )\r | |
749 | {\r | |
750 | return (mExitRequested);\r | |
751 | }\r | |
752 | \r | |
753 | /**\r | |
754 | Retrieve the Exit script indicator.\r | |
755 | \r | |
756 | If ShellCommandGetExit returns FALSE than the return from this is undefined.\r | |
757 | \r | |
758 | @retval TRUE ScriptOnly was indicated.\r | |
759 | @retval FALSE ScriptOnly was not indicated.\r | |
760 | **/\r | |
761 | BOOLEAN\r | |
762 | EFIAPI\r | |
763 | ShellCommandGetScriptExit (\r | |
764 | VOID\r | |
765 | )\r | |
766 | {\r | |
767 | return (mExitScript);\r | |
768 | }\r | |
769 | \r | |
770 | /**\r | |
771 | Function to cleanup all memory from a SCRIPT_FILE structure.\r | |
772 | \r | |
773 | @param[in] Script The pointer to the structure to cleanup.\r | |
774 | **/\r | |
775 | VOID\r | |
776 | EFIAPI\r | |
777 | DeleteScriptFileStruct (\r | |
778 | IN SCRIPT_FILE *Script\r | |
779 | )\r | |
780 | {\r | |
781 | UINT8 LoopVar;\r | |
0ab85bef | 782 | \r |
783 | if (Script == NULL) {\r | |
784 | return;\r | |
785 | }\r | |
786 | \r | |
a405b86d | 787 | for (LoopVar = 0 ; LoopVar < Script->Argc ; LoopVar++) {\r |
0ab85bef | 788 | SHELL_FREE_NON_NULL(Script->Argv[LoopVar]);\r |
a405b86d | 789 | }\r |
790 | if (Script->Argv != NULL) {\r | |
0ab85bef | 791 | SHELL_FREE_NON_NULL(Script->Argv);\r |
a405b86d | 792 | }\r |
793 | Script->CurrentCommand = NULL;\r | |
794 | while (!IsListEmpty (&Script->CommandList)) {\r | |
795 | Script->CurrentCommand = (SCRIPT_COMMAND_LIST *)GetFirstNode(&Script->CommandList);\r | |
796 | if (Script->CurrentCommand != NULL) {\r | |
797 | RemoveEntryList(&Script->CurrentCommand->Link);\r | |
798 | if (Script->CurrentCommand->Cl != NULL) {\r | |
0ab85bef | 799 | SHELL_FREE_NON_NULL(Script->CurrentCommand->Cl);\r |
a405b86d | 800 | }\r |
801 | if (Script->CurrentCommand->Data != NULL) {\r | |
0ab85bef | 802 | SHELL_FREE_NON_NULL(Script->CurrentCommand->Data);\r |
a405b86d | 803 | }\r |
0ab85bef | 804 | SHELL_FREE_NON_NULL(Script->CurrentCommand);\r |
a405b86d | 805 | }\r |
806 | }\r | |
0ab85bef | 807 | SHELL_FREE_NON_NULL(Script->ScriptName);\r |
808 | SHELL_FREE_NON_NULL(Script);\r | |
a405b86d | 809 | }\r |
810 | \r | |
811 | /**\r | |
812 | Function to return a pointer to the currently running script file object.\r | |
813 | \r | |
814 | @retval NULL A script file is not currently running.\r | |
815 | @return A pointer to the current script file object.\r | |
816 | **/\r | |
817 | SCRIPT_FILE*\r | |
818 | EFIAPI\r | |
819 | ShellCommandGetCurrentScriptFile (\r | |
820 | VOID\r | |
821 | )\r | |
822 | {\r | |
823 | SCRIPT_FILE_LIST *List;\r | |
824 | if (IsListEmpty (&mScriptList.Link)) {\r | |
825 | return (NULL);\r | |
826 | }\r | |
827 | List = ((SCRIPT_FILE_LIST*)GetFirstNode(&mScriptList.Link));\r | |
828 | return (List->Data);\r | |
829 | }\r | |
830 | \r | |
831 | /**\r | |
832 | Function to set a new script as the currently running one.\r | |
833 | \r | |
834 | This function will correctly stack and unstack nested scripts.\r | |
835 | \r | |
836 | @param[in] Script Pointer to new script information structure. if NULL\r | |
837 | will remove and de-allocate the top-most Script structure.\r | |
838 | \r | |
839 | @return A pointer to the current running script file after this\r | |
840 | change. NULL if removing the final script.\r | |
841 | **/\r | |
842 | SCRIPT_FILE*\r | |
843 | EFIAPI\r | |
844 | ShellCommandSetNewScript (\r | |
845 | IN SCRIPT_FILE *Script OPTIONAL\r | |
846 | )\r | |
847 | {\r | |
848 | SCRIPT_FILE_LIST *Node;\r | |
849 | if (Script == NULL) {\r | |
850 | if (IsListEmpty (&mScriptList.Link)) {\r | |
a405b86d | 851 | return (NULL);\r |
852 | }\r | |
853 | Node = (SCRIPT_FILE_LIST *)GetFirstNode(&mScriptList.Link);\r | |
854 | RemoveEntryList(&Node->Link);\r | |
855 | DeleteScriptFileStruct(Node->Data);\r | |
856 | FreePool(Node);\r | |
857 | } else {\r | |
858 | Node = AllocateZeroPool(sizeof(SCRIPT_FILE_LIST));\r | |
0ab85bef | 859 | if (Node == NULL) {\r |
860 | return (NULL);\r | |
861 | }\r | |
a405b86d | 862 | Node->Data = Script;\r |
863 | InsertHeadList(&mScriptList.Link, &Node->Link);\r | |
864 | }\r | |
865 | return (ShellCommandGetCurrentScriptFile());\r | |
866 | }\r | |
867 | \r | |
868 | /**\r | |
869 | Function to generate the next default mapping name.\r | |
870 | \r | |
871 | If the return value is not NULL then it must be callee freed.\r | |
872 | \r | |
873 | @param Type What kind of mapping name to make.\r | |
874 | \r | |
875 | @retval NULL a memory allocation failed.\r | |
876 | @return a new map name string\r | |
877 | **/\r | |
878 | CHAR16*\r | |
879 | EFIAPI\r | |
880 | ShellCommandCreateNewMappingName(\r | |
881 | IN CONST SHELL_MAPPING_TYPE Type\r | |
882 | )\r | |
883 | {\r | |
884 | CHAR16 *String;\r | |
885 | ASSERT(Type < MappingTypeMax);\r | |
886 | \r | |
887 | String = NULL;\r | |
888 | \r | |
889 | String = AllocateZeroPool(PcdGet8(PcdShellMapNameLength) * sizeof(String[0]));\r | |
890 | UnicodeSPrint(\r | |
891 | String,\r | |
892 | PcdGet8(PcdShellMapNameLength) * sizeof(String[0]),\r | |
893 | Type == MappingTypeFileSystem?L"FS%d:":L"BLK%d:",\r | |
894 | Type == MappingTypeFileSystem?mFsMaxCount++:mBlkMaxCount++);\r | |
895 | \r | |
896 | return (String);\r | |
897 | }\r | |
898 | \r | |
899 | /**\r | |
900 | Function to add a map node to the list of map items and update the "path" environment variable (optionally).\r | |
901 | \r | |
902 | If Path is TRUE (during initialization only), the path environment variable will also be updated to include\r | |
903 | default paths on the new map name...\r | |
904 | \r | |
905 | Path should be FALSE when this function is called from the protocol SetMap function.\r | |
906 | \r | |
907 | @param[in] Name The human readable mapped name.\r | |
908 | @param[in] DevicePath The Device Path for this map.\r | |
909 | @param[in] Flags The Flags attribute for this map item.\r | |
910 | @param[in] Path TRUE to update path, FALSE to skip this step (should only be TRUE during initialization).\r | |
911 | \r | |
912 | @retval EFI_SUCCESS The addition was sucessful.\r | |
913 | @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r | |
914 | @retval EFI_INVALID_PARAMETER A parameter was invalid.\r | |
915 | **/\r | |
916 | EFI_STATUS\r | |
917 | EFIAPI\r | |
918 | ShellCommandAddMapItemAndUpdatePath(\r | |
919 | IN CONST CHAR16 *Name,\r | |
920 | IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
921 | IN CONST UINT64 Flags,\r | |
922 | IN CONST BOOLEAN Path\r | |
923 | )\r | |
924 | {\r | |
925 | EFI_STATUS Status;\r | |
926 | SHELL_MAP_LIST *MapListNode;\r | |
927 | CONST CHAR16 *OriginalPath;\r | |
928 | CHAR16 *NewPath;\r | |
929 | UINTN NewPathSize;\r | |
930 | \r | |
931 | NewPathSize = 0;\r | |
932 | NewPath = NULL;\r | |
933 | OriginalPath = NULL;\r | |
934 | Status = EFI_SUCCESS;\r | |
935 | \r | |
936 | MapListNode = AllocateZeroPool(sizeof(SHELL_MAP_LIST));\r | |
937 | if (MapListNode == NULL) {\r | |
938 | Status = EFI_OUT_OF_RESOURCES;\r | |
939 | } else {\r | |
940 | MapListNode->Flags = Flags;\r | |
941 | MapListNode->MapName = AllocateZeroPool(StrSize(Name));\r | |
942 | MapListNode->DevicePath = DuplicateDevicePath(DevicePath);\r | |
943 | if ((MapListNode->MapName == NULL) || (MapListNode->DevicePath == NULL)){\r | |
944 | Status = EFI_OUT_OF_RESOURCES;\r | |
945 | } else {\r | |
946 | StrCpy(MapListNode->MapName, Name);\r | |
947 | InsertTailList(&gShellMapList.Link, &MapListNode->Link);\r | |
948 | }\r | |
949 | }\r | |
950 | if (EFI_ERROR(Status)) {\r | |
951 | if (MapListNode != NULL) {\r | |
952 | if (MapListNode->DevicePath != NULL) {\r | |
953 | FreePool(MapListNode->DevicePath);\r | |
954 | }\r | |
955 | if (MapListNode->MapName != NULL) {\r | |
956 | FreePool(MapListNode->MapName);\r | |
957 | }\r | |
958 | FreePool(MapListNode);\r | |
959 | }\r | |
960 | } else if (Path) {\r | |
961 | //\r | |
962 | // Since there was no error and Path was TRUE\r | |
963 | // Now add the correct path for that mapping\r | |
964 | //\r | |
965 | OriginalPath = gEfiShellProtocol->GetEnv(L"path");\r | |
966 | ASSERT((NewPath == NULL && NewPathSize == 0) || (NewPath != NULL));\r | |
967 | if (OriginalPath != NULL) {\r | |
968 | StrnCatGrow(&NewPath, &NewPathSize, OriginalPath, 0);\r | |
969 | } else {\r | |
970 | StrnCatGrow(&NewPath, &NewPathSize, L".\\", 0);\r | |
971 | }\r | |
972 | StrnCatGrow(&NewPath, &NewPathSize, L";", 0);\r | |
973 | StrnCatGrow(&NewPath, &NewPathSize, Name, 0);\r | |
974 | StrnCatGrow(&NewPath, &NewPathSize, L"\\efi\\tools\\;", 0);\r | |
975 | StrnCatGrow(&NewPath, &NewPathSize, Name, 0);\r | |
976 | StrnCatGrow(&NewPath, &NewPathSize, L"\\efi\\boot\\;", 0);\r | |
977 | StrnCatGrow(&NewPath, &NewPathSize, Name, 0);\r | |
978 | StrnCatGrow(&NewPath, &NewPathSize, L"\\", 0);\r | |
979 | \r | |
980 | Status = gEfiShellProtocol->SetEnv(L"path", NewPath, TRUE);\r | |
981 | ASSERT_EFI_ERROR(Status);\r | |
982 | FreePool(NewPath);\r | |
983 | }\r | |
984 | return (Status);\r | |
985 | }\r | |
986 | \r | |
987 | /**\r | |
988 | Creates the default map names for each device path in the system with\r | |
989 | a protocol depending on the Type.\r | |
990 | \r | |
991 | Creates the consistent map names for each device path in the system with\r | |
992 | a protocol depending on the Type.\r | |
993 | \r | |
994 | Note: This will reset all mappings in the system("map -r").\r | |
995 | \r | |
996 | Also sets up the default path environment variable if Type is FileSystem.\r | |
997 | \r | |
998 | @retval EFI_SUCCESS All map names were created sucessfully.\r | |
999 | @retval EFI_NOT_FOUND No protocols were found in the system.\r | |
1000 | @return Error returned from gBS->LocateHandle().\r | |
1001 | \r | |
1002 | @sa LocateHandle\r | |
1003 | **/\r | |
1004 | EFI_STATUS\r | |
1005 | EFIAPI\r | |
1006 | ShellCommandCreateInitialMappingsAndPaths(\r | |
1007 | VOID\r | |
1008 | )\r | |
1009 | {\r | |
1010 | EFI_STATUS Status;\r | |
1011 | EFI_HANDLE *HandleList;\r | |
1012 | UINTN Count;\r | |
1013 | EFI_DEVICE_PATH_PROTOCOL **DevicePathList;\r | |
1014 | CHAR16 *NewDefaultName;\r | |
1015 | CHAR16 *NewConsistName;\r | |
1016 | EFI_DEVICE_PATH_PROTOCOL **ConsistMappingTable;\r | |
1017 | SHELL_MAP_LIST *MapListNode;\r | |
1018 | \r | |
1019 | HandleList = NULL;\r | |
1020 | \r | |
1021 | //\r | |
1022 | // Reset the static members back to zero\r | |
1023 | //\r | |
1024 | mFsMaxCount = 0;\r | |
1025 | mBlkMaxCount = 0;\r | |
1026 | \r | |
1027 | gEfiShellProtocol->SetEnv(L"path", L"", TRUE);\r | |
1028 | \r | |
1029 | //\r | |
1030 | // First empty out the existing list.\r | |
1031 | //\r | |
1032 | if (!IsListEmpty(&gShellMapList.Link)) {\r | |
1033 | for ( MapListNode = (SHELL_MAP_LIST *)GetFirstNode(&gShellMapList.Link)\r | |
1034 | ; !IsListEmpty(&gShellMapList.Link)\r | |
1035 | ; MapListNode = (SHELL_MAP_LIST *)GetFirstNode(&gShellMapList.Link)\r | |
1036 | ){\r | |
1037 | RemoveEntryList(&MapListNode->Link);\r | |
1038 | FreePool(MapListNode);\r | |
1039 | } // for loop\r | |
1040 | }\r | |
1041 | \r | |
1042 | //\r | |
1043 | // Find each handle with Simple File System\r | |
1044 | //\r | |
0ab85bef | 1045 | HandleList = GetHandleListByProtocol(&gEfiSimpleFileSystemProtocolGuid);\r |
a405b86d | 1046 | if (HandleList != NULL) {\r |
1047 | //\r | |
1048 | // Do a count of the handles\r | |
1049 | //\r | |
1050 | for (Count = 0 ; HandleList[Count] != NULL ; Count++);\r | |
1051 | \r | |
1052 | //\r | |
1053 | // Get all Device Paths\r | |
1054 | //\r | |
1a63ec8f | 1055 | DevicePathList = AllocateZeroPool(sizeof(EFI_DEVICE_PATH_PROTOCOL*) * Count);\r |
a405b86d | 1056 | ASSERT(DevicePathList != NULL);\r |
1057 | \r | |
1058 | for (Count = 0 ; HandleList[Count] != NULL ; Count++) {\r | |
1059 | DevicePathList[Count] = DevicePathFromHandle(HandleList[Count]);\r | |
1060 | }\r | |
1061 | \r | |
1062 | //\r | |
1063 | // Sort all DevicePaths\r | |
1064 | //\r | |
1065 | PerformQuickSort(DevicePathList, Count, sizeof(EFI_DEVICE_PATH_PROTOCOL*), DevicePathCompare);\r | |
1066 | \r | |
1067 | ShellCommandConsistMappingInitialize(&ConsistMappingTable);\r | |
1068 | //\r | |
1069 | // Assign new Mappings to all...\r | |
1070 | //\r | |
1071 | for (Count = 0 ; HandleList[Count] != NULL ; Count++) {\r | |
1072 | //\r | |
1073 | // Get default name first\r | |
1074 | //\r | |
1075 | NewDefaultName = ShellCommandCreateNewMappingName(MappingTypeFileSystem);\r | |
1076 | ASSERT(NewDefaultName != NULL);\r | |
1077 | Status = ShellCommandAddMapItemAndUpdatePath(NewDefaultName, DevicePathList[Count], 0, TRUE);\r | |
1078 | ASSERT_EFI_ERROR(Status);\r | |
1079 | FreePool(NewDefaultName);\r | |
1080 | \r | |
1081 | //\r | |
1082 | // Now do consistent name\r | |
1083 | //\r | |
1084 | NewConsistName = ShellCommandConsistMappingGenMappingName(DevicePathList[Count], ConsistMappingTable);\r | |
1085 | if (NewConsistName != NULL) {\r | |
1086 | Status = ShellCommandAddMapItemAndUpdatePath(NewConsistName, DevicePathList[Count], 0, FALSE);\r | |
1087 | ASSERT_EFI_ERROR(Status);\r | |
1088 | FreePool(NewConsistName);\r | |
1089 | }\r | |
1090 | }\r | |
1091 | \r | |
1092 | ShellCommandConsistMappingUnInitialize(ConsistMappingTable);\r | |
1093 | \r | |
1094 | SHELL_FREE_NON_NULL(HandleList);\r | |
1095 | SHELL_FREE_NON_NULL(DevicePathList);\r | |
1096 | \r | |
1097 | HandleList = NULL;\r | |
1098 | } else {\r | |
1099 | Count = (UINTN)-1;\r | |
1100 | }\r | |
1101 | \r | |
1102 | //\r | |
1103 | // Find each handle with Block Io\r | |
1104 | //\r | |
0ab85bef | 1105 | HandleList = GetHandleListByProtocol(&gEfiBlockIoProtocolGuid);\r |
a405b86d | 1106 | if (HandleList != NULL) {\r |
1107 | for (Count = 0 ; HandleList[Count] != NULL ; Count++);\r | |
1108 | \r | |
1109 | //\r | |
1110 | // Get all Device Paths\r | |
1111 | //\r | |
1a63ec8f | 1112 | DevicePathList = AllocateZeroPool(sizeof(EFI_DEVICE_PATH_PROTOCOL*) * Count);\r |
a405b86d | 1113 | ASSERT(DevicePathList != NULL);\r |
1114 | \r | |
1115 | for (Count = 0 ; HandleList[Count] != NULL ; Count++) {\r | |
1116 | DevicePathList[Count] = DevicePathFromHandle(HandleList[Count]);\r | |
1117 | }\r | |
1118 | \r | |
1119 | //\r | |
1120 | // Sort all DevicePaths\r | |
1121 | //\r | |
1122 | PerformQuickSort(DevicePathList, Count, sizeof(EFI_DEVICE_PATH_PROTOCOL*), DevicePathCompare);\r | |
1123 | \r | |
1124 | //\r | |
1125 | // Assign new Mappings to all...\r | |
1126 | //\r | |
1127 | for (Count = 0 ; HandleList[Count] != NULL ; Count++) {\r | |
1128 | //\r | |
1129 | // Get default name first\r | |
1130 | //\r | |
1131 | NewDefaultName = ShellCommandCreateNewMappingName(MappingTypeBlockIo);\r | |
1132 | ASSERT(NewDefaultName != NULL);\r | |
1133 | Status = ShellCommandAddMapItemAndUpdatePath(NewDefaultName, DevicePathList[Count], 0, FALSE);\r | |
1134 | ASSERT_EFI_ERROR(Status);\r | |
1135 | FreePool(NewDefaultName);\r | |
1136 | }\r | |
1137 | \r | |
1138 | SHELL_FREE_NON_NULL(HandleList);\r | |
1139 | SHELL_FREE_NON_NULL(DevicePathList);\r | |
1140 | } else if (Count == (UINTN)-1) {\r | |
1141 | return (EFI_NOT_FOUND);\r | |
1142 | }\r | |
1143 | \r | |
1144 | return (EFI_SUCCESS);\r | |
1145 | }\r | |
1146 | \r | |
1a63ec8f | 1147 | /**\r |
1148 | Function to make sure all directory delimeters are backslashes.\r | |
1149 | \r | |
1150 | @param[in,out] Path The path to modify.\r | |
1151 | \r | |
1152 | @return Path.\r | |
1153 | **/\r | |
a405b86d | 1154 | CHAR16*\r |
1155 | EFIAPI\r | |
1156 | ShellCommandCleanPath (\r | |
1157 | IN OUT CHAR16 *Path\r | |
1158 | )\r | |
1159 | {\r | |
1160 | CHAR16 *Path2;\r | |
1161 | \r | |
1162 | for (Path2 = Path ; Path2 != NULL && *Path2 != CHAR_NULL ; Path2++) {\r | |
1163 | if (*Path2 == L'/') {\r | |
1164 | *Path2 = L'\\';\r | |
1165 | }\r | |
1166 | }\r | |
1167 | \r | |
1168 | return (Path);\r | |
1169 | }\r | |
1170 | \r | |
1171 | /**\r | |
1172 | Converts a SHELL_FILE_HANDLE to an EFI_FILE_PROTOCOL*.\r | |
1173 | \r | |
1174 | @param[in] Handle The SHELL_FILE_HANDLE to convert.\r | |
1175 | \r | |
1176 | @return a EFI_FILE_PROTOCOL* representing the same file.\r | |
1177 | **/\r | |
1178 | EFI_FILE_PROTOCOL*\r | |
1179 | EFIAPI\r | |
1180 | ConvertShellHandleToEfiFileProtocol(\r | |
1181 | IN CONST SHELL_FILE_HANDLE Handle\r | |
1182 | )\r | |
1183 | {\r | |
1184 | return ((EFI_FILE_PROTOCOL*)(Handle));\r | |
1185 | }\r | |
1186 | \r | |
1187 | /**\r | |
1188 | Converts a EFI_FILE_PROTOCOL* to an SHELL_FILE_HANDLE.\r | |
1189 | \r | |
1190 | @param[in] Handle The pointer to EFI_FILE_PROTOCOL to convert.\r | |
1191 | @param[in] Path The path to the file for verification.\r | |
1192 | \r | |
ff51746b | 1193 | @return A SHELL_FILE_HANDLE representing the same file.\r |
1194 | @retval NULL There was not enough memory.\r | |
a405b86d | 1195 | **/\r |
1196 | SHELL_FILE_HANDLE\r | |
1197 | EFIAPI\r | |
1198 | ConvertEfiFileProtocolToShellHandle(\r | |
1199 | IN CONST EFI_FILE_PROTOCOL *Handle,\r | |
1200 | IN CONST CHAR16 *Path\r | |
1201 | )\r | |
1202 | {\r | |
1203 | SHELL_COMMAND_FILE_HANDLE *Buffer;\r | |
1204 | BUFFER_LIST *NewNode;\r | |
1205 | \r | |
1206 | if (Path != NULL) {\r | |
1207 | Buffer = AllocateZeroPool(sizeof(SHELL_COMMAND_FILE_HANDLE));\r | |
ff51746b | 1208 | if (Buffer == NULL) {\r |
1209 | return (NULL);\r | |
1210 | }\r | |
1a63ec8f | 1211 | NewNode = AllocateZeroPool(sizeof(BUFFER_LIST));\r |
ff51746b | 1212 | if (NewNode == NULL) {\r |
1213 | return (NULL);\r | |
1214 | }\r | |
a405b86d | 1215 | Buffer->FileHandle = (EFI_FILE_PROTOCOL*)Handle;\r |
1216 | Buffer->Path = StrnCatGrow(&Buffer->Path, NULL, Path, 0);\r | |
ff51746b | 1217 | if (Buffer->Path == NULL) {\r |
1218 | return (NULL);\r | |
1219 | }\r | |
a405b86d | 1220 | NewNode->Buffer = Buffer;\r |
1221 | \r | |
1222 | InsertHeadList(&mFileHandleList.Link, &NewNode->Link);\r | |
1223 | }\r | |
1224 | return ((SHELL_FILE_HANDLE)(Handle));\r | |
1225 | }\r | |
1226 | \r | |
1227 | /**\r | |
1228 | Find the path that was logged with the specified SHELL_FILE_HANDLE.\r | |
1229 | \r | |
1230 | @param[in] Handle The SHELL_FILE_HANDLE to query on.\r | |
1231 | \r | |
1232 | @return A pointer to the path for the file.\r | |
1233 | **/\r | |
1234 | CONST CHAR16*\r | |
1235 | EFIAPI\r | |
1236 | ShellFileHandleGetPath(\r | |
1237 | IN CONST SHELL_FILE_HANDLE Handle\r | |
1238 | )\r | |
1239 | {\r | |
1240 | BUFFER_LIST *Node;\r | |
1241 | \r | |
1242 | for (Node = (BUFFER_LIST*)GetFirstNode(&mFileHandleList.Link)\r | |
1243 | ; !IsNull(&mFileHandleList.Link, &Node->Link)\r | |
1244 | ; Node = (BUFFER_LIST*)GetNextNode(&mFileHandleList.Link, &Node->Link)\r | |
1245 | ){\r | |
1246 | if ((Node->Buffer) && (((SHELL_COMMAND_FILE_HANDLE *)Node->Buffer)->FileHandle == Handle)){\r | |
1247 | return (((SHELL_COMMAND_FILE_HANDLE *)Node->Buffer)->Path);\r | |
1248 | }\r | |
1249 | }\r | |
1250 | return (NULL);\r | |
1251 | }\r | |
1252 | \r | |
1253 | /**\r | |
1a63ec8f | 1254 | Remove a SHELL_FILE_HANDLE from the list of SHELL_FILE_HANDLES.\r |
a405b86d | 1255 | \r |
1256 | @param[in] Handle The SHELL_FILE_HANDLE to remove.\r | |
1257 | \r | |
1258 | @retval TRUE The item was removed.\r | |
1259 | @retval FALSE The item was not found.\r | |
1260 | **/\r | |
1261 | BOOLEAN\r | |
1262 | EFIAPI\r | |
1263 | ShellFileHandleRemove(\r | |
1264 | IN CONST SHELL_FILE_HANDLE Handle\r | |
1265 | )\r | |
1266 | {\r | |
1267 | BUFFER_LIST *Node;\r | |
1268 | \r | |
1269 | for (Node = (BUFFER_LIST*)GetFirstNode(&mFileHandleList.Link)\r | |
1270 | ; !IsNull(&mFileHandleList.Link, &Node->Link)\r | |
1271 | ; Node = (BUFFER_LIST*)GetNextNode(&mFileHandleList.Link, &Node->Link)\r | |
1272 | ){\r | |
1273 | if ((Node->Buffer) && (((SHELL_COMMAND_FILE_HANDLE *)Node->Buffer)->FileHandle == Handle)){\r | |
a405b86d | 1274 | RemoveEntryList(&Node->Link);\r |
ff51746b | 1275 | SHELL_FREE_NON_NULL(((SHELL_COMMAND_FILE_HANDLE *)Node->Buffer)->Path);\r |
1276 | SHELL_FREE_NON_NULL(Node->Buffer);\r | |
1277 | SHELL_FREE_NON_NULL(Node);\r | |
a405b86d | 1278 | return (TRUE);\r |
1279 | }\r | |
1280 | }\r | |
1281 | return (FALSE);\r | |
1282 | }\r | |
1283 | \r | |
1284 | /**\r | |
1285 | Function to determine if a SHELL_FILE_HANDLE is at the end of the file.\r | |
1286 | \r | |
1287 | This will NOT work on directories.\r | |
1288 | \r | |
1289 | If Handle is NULL, then ASSERT.\r | |
1290 | \r | |
1291 | @param[in] Handle the file handle\r | |
1292 | \r | |
1293 | @retval TRUE the position is at the end of the file\r | |
1294 | @retval FALSE the position is not at the end of the file\r | |
1295 | **/\r | |
1296 | BOOLEAN\r | |
1297 | EFIAPI\r | |
1298 | ShellFileHandleEof(\r | |
1299 | IN SHELL_FILE_HANDLE Handle\r | |
1300 | )\r | |
1301 | {\r | |
1302 | EFI_FILE_INFO *Info;\r | |
1303 | UINT64 Pos;\r | |
1304 | BOOLEAN RetVal;\r | |
1305 | \r | |
1306 | //\r | |
1307 | // ASSERT if Handle is NULL\r | |
1308 | //\r | |
1309 | ASSERT(Handle != NULL);\r | |
1310 | \r | |
1311 | gEfiShellProtocol->GetFilePosition(Handle, &Pos);\r | |
1312 | Info = gEfiShellProtocol->GetFileInfo (Handle);\r | |
1313 | ASSERT(Info != NULL);\r | |
1314 | gEfiShellProtocol->SetFilePosition(Handle, Pos);\r | |
1315 | \r | |
1316 | if (Info == NULL) {\r | |
1317 | return (FALSE);\r | |
1318 | }\r | |
1319 | \r | |
1320 | if (Pos == Info->FileSize) {\r | |
1321 | RetVal = TRUE;\r | |
1322 | } else {\r | |
1323 | RetVal = FALSE;\r | |
1324 | }\r | |
1325 | \r | |
1326 | FreePool (Info);\r | |
1327 | \r | |
1328 | return (RetVal);\r | |
1329 | }\r | |
1330 | \r | |
1331 | /**\r | |
1332 | Function to read a single line from a SHELL_FILE_HANDLE. The \n is not included in the returned\r | |
1333 | buffer. The returned buffer must be callee freed.\r | |
1334 | \r | |
1335 | If the position upon start is 0, then the Ascii Boolean will be set. This should be\r | |
1336 | maintained and not changed for all operations with the same file.\r | |
1337 | \r | |
1338 | @param[in] Handle SHELL_FILE_HANDLE to read from.\r | |
1339 | @param[in,out] Ascii Boolean value for indicating whether the file is\r | |
1340 | Ascii (TRUE) or UCS2 (FALSE).\r | |
1341 | \r | |
1342 | @return The line of text from the file.\r | |
1343 | \r | |
1344 | @sa ShellFileHandleReadLine\r | |
1345 | **/\r | |
1346 | CHAR16*\r | |
1347 | EFIAPI\r | |
1348 | ShellFileHandleReturnLine(\r | |
1349 | IN SHELL_FILE_HANDLE Handle,\r | |
1350 | IN OUT BOOLEAN *Ascii\r | |
1351 | )\r | |
1352 | {\r | |
1353 | CHAR16 *RetVal;\r | |
1354 | UINTN Size;\r | |
1355 | EFI_STATUS Status;\r | |
1356 | \r | |
1357 | Size = 0;\r | |
1358 | RetVal = NULL;\r | |
1359 | \r | |
1360 | Status = ShellFileHandleReadLine(Handle, RetVal, &Size, FALSE, Ascii);\r | |
1361 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
1a63ec8f | 1362 | RetVal = AllocateZeroPool(Size);\r |
a405b86d | 1363 | Status = ShellFileHandleReadLine(Handle, RetVal, &Size, FALSE, Ascii);\r |
1364 | }\r | |
1365 | ASSERT_EFI_ERROR(Status);\r | |
1366 | if (EFI_ERROR(Status) && (RetVal != NULL)) {\r | |
1367 | FreePool(RetVal);\r | |
1368 | RetVal = NULL;\r | |
1369 | }\r | |
1370 | return (RetVal);\r | |
1371 | }\r | |
1372 | \r | |
1373 | /**\r | |
1374 | Function to read a single line (up to but not including the \n) from a SHELL_FILE_HANDLE.\r | |
1375 | \r | |
1376 | If the position upon start is 0, then the Ascii Boolean will be set. This should be\r | |
1377 | maintained and not changed for all operations with the same file.\r | |
1378 | \r | |
1379 | @param[in] Handle SHELL_FILE_HANDLE to read from.\r | |
1380 | @param[in,out] Buffer The pointer to buffer to read into.\r | |
1381 | @param[in,out] Size The pointer to number of bytes in Buffer.\r | |
1382 | @param[in] Truncate If the buffer is large enough, this has no effect.\r | |
1383 | If the buffer is is too small and Truncate is TRUE,\r | |
1384 | the line will be truncated.\r | |
1385 | If the buffer is is too small and Truncate is FALSE,\r | |
1386 | then no read will occur.\r | |
1387 | \r | |
1388 | @param[in,out] Ascii Boolean value for indicating whether the file is\r | |
1389 | Ascii (TRUE) or UCS2 (FALSE).\r | |
1390 | \r | |
1391 | @retval EFI_SUCCESS The operation was successful. The line is stored in\r | |
1392 | Buffer.\r | |
1393 | @retval EFI_INVALID_PARAMETER Handle was NULL.\r | |
1394 | @retval EFI_INVALID_PARAMETER Size was NULL.\r | |
1395 | @retval EFI_BUFFER_TOO_SMALL Size was not large enough to store the line.\r | |
1396 | Size was updated to the minimum space required.\r | |
1397 | @sa ShellFileHandleRead\r | |
1398 | **/\r | |
1399 | EFI_STATUS\r | |
1400 | EFIAPI\r | |
1401 | ShellFileHandleReadLine(\r | |
1402 | IN SHELL_FILE_HANDLE Handle,\r | |
1403 | IN OUT CHAR16 *Buffer,\r | |
1404 | IN OUT UINTN *Size,\r | |
1405 | IN BOOLEAN Truncate,\r | |
1406 | IN OUT BOOLEAN *Ascii\r | |
1407 | )\r | |
1408 | {\r | |
1409 | EFI_STATUS Status;\r | |
1410 | CHAR16 CharBuffer;\r | |
1411 | UINTN CharSize;\r | |
1412 | UINTN CountSoFar;\r | |
1413 | UINT64 OriginalFilePosition;\r | |
1414 | \r | |
1415 | \r | |
1416 | if (Handle == NULL\r | |
1417 | ||Size == NULL\r | |
1418 | ){\r | |
1419 | return (EFI_INVALID_PARAMETER);\r | |
1420 | }\r | |
1421 | if (Buffer == NULL) {\r | |
1422 | ASSERT(*Size == 0);\r | |
1423 | } else {\r | |
1424 | *Buffer = CHAR_NULL;\r | |
1425 | }\r | |
1426 | gEfiShellProtocol->GetFilePosition(Handle, &OriginalFilePosition);\r | |
1427 | if (OriginalFilePosition == 0) {\r | |
1428 | CharSize = sizeof(CHAR16);\r | |
1429 | Status = gEfiShellProtocol->ReadFile(Handle, &CharSize, &CharBuffer);\r | |
1430 | ASSERT_EFI_ERROR(Status);\r | |
1a63ec8f | 1431 | if (CharBuffer == gUnicodeFileTag) {\r |
a405b86d | 1432 | *Ascii = FALSE;\r |
1433 | } else {\r | |
1434 | *Ascii = TRUE;\r | |
1435 | gEfiShellProtocol->SetFilePosition(Handle, OriginalFilePosition);\r | |
1436 | }\r | |
1437 | }\r | |
1438 | \r | |
1439 | for (CountSoFar = 0;;CountSoFar++){\r | |
1440 | CharBuffer = 0;\r | |
1441 | if (*Ascii) {\r | |
1442 | CharSize = sizeof(CHAR8);\r | |
1443 | } else {\r | |
1444 | CharSize = sizeof(CHAR16);\r | |
1445 | }\r | |
1446 | Status = gEfiShellProtocol->ReadFile(Handle, &CharSize, &CharBuffer);\r | |
1447 | if ( EFI_ERROR(Status)\r | |
1448 | || CharSize == 0\r | |
1449 | || (CharBuffer == L'\n' && !(*Ascii))\r | |
1450 | || (CharBuffer == '\n' && *Ascii)\r | |
1451 | ){\r | |
1452 | break;\r | |
1453 | }\r | |
1454 | //\r | |
1455 | // if we have space save it...\r | |
1456 | //\r | |
1457 | if ((CountSoFar+1)*sizeof(CHAR16) < *Size){\r | |
1458 | ASSERT(Buffer != NULL);\r | |
1459 | ((CHAR16*)Buffer)[CountSoFar] = CharBuffer;\r | |
1460 | ((CHAR16*)Buffer)[CountSoFar+1] = CHAR_NULL;\r | |
1461 | }\r | |
1462 | }\r | |
1463 | \r | |
1464 | //\r | |
1465 | // if we ran out of space tell when...\r | |
1466 | //\r | |
1467 | if ((CountSoFar+1)*sizeof(CHAR16) > *Size){\r | |
1468 | *Size = (CountSoFar+1)*sizeof(CHAR16);\r | |
1469 | if (!Truncate) {\r | |
1470 | gEfiShellProtocol->SetFilePosition(Handle, OriginalFilePosition);\r | |
1471 | } else {\r | |
1472 | DEBUG((DEBUG_WARN, "The line was truncated in ShellFileHandleReadLine"));\r | |
1473 | }\r | |
1474 | return (EFI_BUFFER_TOO_SMALL);\r | |
1475 | }\r | |
1476 | while(Buffer[StrLen(Buffer)-1] == L'\r') {\r | |
1477 | Buffer[StrLen(Buffer)-1] = CHAR_NULL;\r | |
1478 | }\r | |
1479 | \r | |
1480 | return (Status);\r | |
1481 | }\r | |
1482 | /**\r | |
1483 | Frees any BUFFER_LIST defined type.\r | |
1a63ec8f | 1484 | \r |
1485 | @param[in] List The BUFFER_LIST object to free.\r | |
a405b86d | 1486 | **/\r |
1487 | VOID\r | |
1488 | EFIAPI\r | |
1489 | FreeBufferList (\r | |
1490 | IN BUFFER_LIST *List\r | |
1491 | )\r | |
1492 | {\r | |
1493 | BUFFER_LIST *BufferListEntry;\r | |
1494 | \r | |
1495 | if (List == NULL){\r | |
1496 | return;\r | |
1497 | }\r | |
1498 | //\r | |
1499 | // enumerate through the buffer list and free all memory\r | |
1500 | //\r | |
1501 | for ( BufferListEntry = ( BUFFER_LIST *)GetFirstNode(&List->Link)\r | |
1502 | ; !IsListEmpty (&List->Link)\r | |
1503 | ; BufferListEntry = (BUFFER_LIST *)GetFirstNode(&List->Link)\r | |
1504 | ){\r | |
1505 | RemoveEntryList(&BufferListEntry->Link);\r | |
1506 | ASSERT(BufferListEntry->Buffer != NULL);\r | |
1507 | if (BufferListEntry->Buffer != NULL) {\r | |
1508 | FreePool(BufferListEntry->Buffer);\r | |
1509 | }\r | |
1510 | FreePool(BufferListEntry);\r | |
1511 | }\r | |
1512 | }\r | |
1513 | \r | |
1514 | /**\r | |
1515 | Chops off last directory or file entry in a path leaving the trailing slash\r | |
1516 | \r | |
1a63ec8f | 1517 | @param[in,out] PathToReturn The path to modify.\r |
a405b86d | 1518 | \r |
1519 | @retval FALSE No directory was found to chop off.\r | |
1520 | @retval TRUE A directory was chopped off.\r | |
1521 | **/\r | |
1522 | BOOLEAN\r | |
1523 | EFIAPI\r | |
1524 | ChopLastSlash(\r | |
1525 | IN OUT CHAR16 *PathToReturn\r | |
1526 | )\r | |
1527 | {\r | |
1528 | CHAR16 *Walker;\r | |
1a63ec8f | 1529 | CHAR16 *LastSlash;\r |
a405b86d | 1530 | //\r |
1531 | // get directory name from path... ('chop' off extra)\r | |
1532 | //\r | |
1a63ec8f | 1533 | for ( Walker = PathToReturn, LastSlash = NULL\r |
a405b86d | 1534 | ; Walker != NULL && *Walker != CHAR_NULL\r |
1535 | ; Walker++\r | |
1536 | ){\r | |
1537 | if (*Walker == L'\\' && *(Walker + 1) != CHAR_NULL) {\r | |
1538 | LastSlash = Walker+1;\r | |
1539 | }\r | |
1540 | }\r | |
1541 | if (LastSlash != NULL) {\r | |
1542 | *LastSlash = CHAR_NULL;\r | |
1543 | return (TRUE);\r | |
1544 | }\r | |
1545 | return (FALSE);\r | |
1546 | }\r | |
1547 | \r |