fx_file_rename.c
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /*************************************************************************** | ||
| 2 | * Copyright (c) 2024 Microsoft Corporation | ||
| 3 | * Copyright (c) 2026-present Eclipse ThreadX contributors | ||
| 4 | * | ||
| 5 | * This program and the accompanying materials are made available under the | ||
| 6 | * terms of the MIT License which is available at | ||
| 7 | * https://opensource.org/licenses/MIT. | ||
| 8 | * | ||
| 9 | * SPDX-License-Identifier: MIT | ||
| 10 | **************************************************************************/ | ||
| 11 | |||
| 12 | |||
| 13 | /**************************************************************************/ | ||
| 14 | /**************************************************************************/ | ||
| 15 | /** */ | ||
| 16 | /** FileX Component */ | ||
| 17 | /** */ | ||
| 18 | /** File */ | ||
| 19 | /** */ | ||
| 20 | /**************************************************************************/ | ||
| 21 | /**************************************************************************/ | ||
| 22 | |||
| 23 | #define FX_SOURCE_CODE | ||
| 24 | |||
| 25 | |||
| 26 | /* Include necessary system files. */ | ||
| 27 | |||
| 28 | #include "fx_api.h" | ||
| 29 | #include "fx_system.h" | ||
| 30 | #include "fx_directory.h" | ||
| 31 | #include "fx_file.h" | ||
| 32 | #include "fx_utility.h" | ||
| 33 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 34 | #include "fx_fault_tolerant.h" | ||
| 35 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 36 | |||
| 37 | |||
| 38 | /**************************************************************************/ | ||
| 39 | /* */ | ||
| 40 | /* FUNCTION RELEASE */ | ||
| 41 | /* */ | ||
| 42 | /* _fx_file_rename PORTABLE C */ | ||
| 43 | /* 6.1 */ | ||
| 44 | /* AUTHOR */ | ||
| 45 | /* */ | ||
| 46 | /* William E. Lamie, Microsoft Corporation */ | ||
| 47 | /* */ | ||
| 48 | /* DESCRIPTION */ | ||
| 49 | /* */ | ||
| 50 | /* This function first attempts to find the specified file. If found, */ | ||
| 51 | /* the rename request is valid and the directory entry will be changed */ | ||
| 52 | /* to the new file name. Otherwise, if the file is not found, the */ | ||
| 53 | /* appropriate error code is returned to the caller. */ | ||
| 54 | /* */ | ||
| 55 | /* INPUT */ | ||
| 56 | /* */ | ||
| 57 | /* media_ptr Media control block pointer */ | ||
| 58 | /* old_file_name Old file name pointer */ | ||
| 59 | /* new_file_name New file name pointer */ | ||
| 60 | /* */ | ||
| 61 | /* OUTPUT */ | ||
| 62 | /* */ | ||
| 63 | /* return status */ | ||
| 64 | /* */ | ||
| 65 | /* CALLS */ | ||
| 66 | /* */ | ||
| 67 | /* _fx_directory_entry_write Write the new directory entry */ | ||
| 68 | /* _fx_directory_free_search Search for a free directory */ | ||
| 69 | /* entry in target directory */ | ||
| 70 | /* _fx_directory_name_extract Extract the new filename */ | ||
| 71 | /* _fx_directory_search Search for the file name in */ | ||
| 72 | /* the directory structure */ | ||
| 73 | /* _fx_fault_tolerant_transaction_start Start fault tolerant */ | ||
| 74 | /* transaction */ | ||
| 75 | /* _fx_fault_tolerant_transaction_end End fault tolerant transaction*/ | ||
| 76 | /* _fx_fault_tolerant_recover Recover FAT chain */ | ||
| 77 | /* */ | ||
| 78 | /* CALLED BY */ | ||
| 79 | /* */ | ||
| 80 | /* Application Code */ | ||
| 81 | /* */ | ||
| 82 | /**************************************************************************/ | ||
| 83 | 907 | UINT _fx_file_rename(FX_MEDIA *media_ptr, CHAR *old_file_name, CHAR *new_file_name) | |
| 84 | { | ||
| 85 | |||
| 86 | ULONG i; | ||
| 87 | CHAR *work_ptr; | ||
| 88 | CHAR alpha, beta; | ||
| 89 | UINT status; | ||
| 90 | |||
| 91 | #ifndef FX_DONT_UPDATE_OPEN_FILES | ||
| 92 | ULONG open_count; | ||
| 93 | FX_FILE *search_ptr; | ||
| 94 | #endif | ||
| 95 | CHAR *new_name_ptr; | ||
| 96 | FX_DIR_ENTRY old_dir_entry, new_dir_entry; | ||
| 97 | FX_DIR_ENTRY search_directory; | ||
| 98 | #ifdef FX_RENAME_PATH_INHERIT | ||
| 99 | UINT j; | ||
| 100 | #endif | ||
| 101 | UCHAR not_a_file_attr; | ||
| 102 | |||
| 103 | |||
| 104 | #ifndef FX_MEDIA_STATISTICS_DISABLE | ||
| 105 | |||
| 106 | /* Increment the number of times this service has been called. */ | ||
| 107 | 907 | media_ptr -> fx_media_file_renames++; | |
| 108 | #endif | ||
| 109 | |||
| 110 | /* Setup pointers to media name buffers. */ | ||
| 111 | 907 | old_dir_entry.fx_dir_entry_name = media_ptr -> fx_media_name_buffer + FX_MAX_LONG_NAME_LEN; | |
| 112 | 907 | new_dir_entry.fx_dir_entry_name = media_ptr -> fx_media_name_buffer + FX_MAX_LONG_NAME_LEN * 2; | |
| 113 | 907 | search_directory.fx_dir_entry_name = media_ptr -> fx_media_name_buffer + FX_MAX_LONG_NAME_LEN * 3; | |
| 114 | |||
| 115 | /* Clear the short name strings. */ | ||
| 116 | 907 | old_dir_entry.fx_dir_entry_short_name[0] = 0; | |
| 117 | 907 | new_dir_entry.fx_dir_entry_short_name[0] = 0; | |
| 118 | 907 | search_directory.fx_dir_entry_short_name[0] = 0; | |
| 119 | |||
| 120 | /* Determine if the supplied name is less than the maximum supported name size. The | ||
| 121 | maximum name (FX_MAX_LONG_NAME_LEN) is defined in fx_api.h. */ | ||
| 122 | 907 | i = 0; | |
| 123 | 907 | work_ptr = (CHAR *)new_file_name; | |
| 124 |
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17381 | while (*work_ptr) |
| 125 | { | ||
| 126 | |||
| 127 | /* Determine if the character designates a new path. */ | ||
| 128 |
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16474 | if ((*work_ptr == '\\') || (*work_ptr == '/')) |
| 129 | { | ||
| 130 | /* Yes, reset the name size. */ | ||
| 131 | 90 | i = 0; | |
| 132 | } | ||
| 133 | /* Check for leading spaces. */ | ||
| 134 |
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16384 | else if ((*work_ptr != ' ') || (i != 0)) |
| 135 | { | ||
| 136 | |||
| 137 | /* No leading spaces, increment the name size. */ | ||
| 138 | 16348 | i++; | |
| 139 | } | ||
| 140 | |||
| 141 | /* Move to the next character. */ | ||
| 142 | 16474 | work_ptr++; | |
| 143 | } | ||
| 144 | |||
| 145 | /* Determine if the supplied name is valid. */ | ||
| 146 |
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907 | if ((i == 0) || (i >= FX_MAX_LONG_NAME_LEN)) |
| 147 | { | ||
| 148 | |||
| 149 | /* Return an invalid name value. */ | ||
| 150 | 18 | return(FX_INVALID_NAME); | |
| 151 | } | ||
| 152 | |||
| 153 | /* Check the media to make sure it is open. */ | ||
| 154 |
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|
889 | if (media_ptr -> fx_media_id != FX_MEDIA_ID) |
| 155 | { | ||
| 156 | |||
| 157 | /* Return the media not opened error. */ | ||
| 158 | 9 | return(FX_MEDIA_NOT_OPEN); | |
| 159 | } | ||
| 160 | |||
| 161 | /* If trace is enabled, insert this event into the trace buffer. */ | ||
| 162 | FX_TRACE_IN_LINE_INSERT(FX_TRACE_FILE_RENAME, media_ptr, old_file_name, new_file_name, 0, FX_TRACE_FILE_EVENTS, 0, 0) | ||
| 163 | |||
| 164 | /* Protect against other threads accessing the media. */ | ||
| 165 | 484 | FX_PROTECT | |
| 166 | |||
| 167 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 168 | /* Start transaction. */ | ||
| 169 | 440 | _fx_fault_tolerant_transaction_start(media_ptr); | |
| 170 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 171 | |||
| 172 | /* Check for write protect at the media level (set by driver). */ | ||
| 173 |
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|
880 | if (media_ptr -> fx_media_driver_write_protect) |
| 174 | { | ||
| 175 | |||
| 176 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 177 | 8 | FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr); | |
| 178 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 179 | |||
| 180 | /* Release media protection. */ | ||
| 181 | 7 | FX_UNPROTECT | |
| 182 | |||
| 183 | /* Return write protect error. */ | ||
| 184 | 13 | return(FX_WRITE_PROTECT); | |
| 185 | } | ||
| 186 | |||
| 187 | /* Search the system for the supplied file name. */ | ||
| 188 | 867 | status = _fx_directory_search(media_ptr, old_file_name, &old_dir_entry, &search_directory, FX_NULL); | |
| 189 | |||
| 190 | /* Determine if the search was successful. */ | ||
| 191 |
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867 | if (status != FX_SUCCESS) |
| 192 | { | ||
| 193 | |||
| 194 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 195 | 4 | FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr); | |
| 196 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 197 | |||
| 198 | /* Release media protection. */ | ||
| 199 | 5 | FX_UNPROTECT | |
| 200 | |||
| 201 | /* Return the error code. */ | ||
| 202 | 9 | return(status); | |
| 203 | } | ||
| 204 | |||
| 205 | 858 | not_a_file_attr = FX_DIRECTORY | FX_VOLUME; | |
| 206 | |||
| 207 | /* Check to make sure the found entry is a file. */ | ||
| 208 |
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858 | if (old_dir_entry.fx_dir_entry_attributes & not_a_file_attr) |
| 209 | { | ||
| 210 | |||
| 211 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 212 | 4 | FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr); | |
| 213 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 214 | |||
| 215 | /* Release media protection. */ | ||
| 216 | 5 | FX_UNPROTECT | |
| 217 | |||
| 218 | /* Return the not a file error code. */ | ||
| 219 | 9 | return(FX_NOT_A_FILE); | |
| 220 | } | ||
| 221 | |||
| 222 | #ifdef FX_RENAME_PATH_INHERIT | ||
| 223 | |||
| 224 | /* Determine if the source file name has a path and the target file name does not. */ | ||
| 225 | if (((old_file_name[0] == '/') || (old_file_name[0] == '\\')) && (new_file_name[0] != '/') && (new_file_name[0] != '\\')) | ||
| 226 | { | ||
| 227 | |||
| 228 | /* In this case, we need to prepend the path of the old file name to that of the new file name. */ | ||
| 229 | |||
| 230 | /* Setup pointer to the rename buffer. */ | ||
| 231 | work_ptr = (CHAR *)media_ptr -> fx_media_rename_buffer; | ||
| 232 | |||
| 233 | /* First, copy the path of the old file name. */ | ||
| 234 | i = 0; | ||
| 235 | j = 0; | ||
| 236 | while ((old_file_name[i]) && (i < FX_MAXIMUM_PATH)) | ||
| 237 | { | ||
| 238 | |||
| 239 | /* Copy a character into the rename buffer. */ | ||
| 240 | *work_ptr++ = old_file_name[i]; | ||
| 241 | |||
| 242 | /* Determine if this character is directory separator. */ | ||
| 243 | if ((old_file_name[i] == '/') || (old_file_name[i] == '\\')) | ||
| 244 | { | ||
| 245 | |||
| 246 | /* Yes, directory separator has been found - remember the index. */ | ||
| 247 | j = i; | ||
| 248 | } | ||
| 249 | |||
| 250 | /* Move to next position in the old file name. */ | ||
| 251 | i++; | ||
| 252 | } | ||
| 253 | |||
| 254 | /* At this point, we have the path stored in the rename buffer. */ | ||
| 255 | |||
| 256 | /* Position past the last slash or backslash. */ | ||
| 257 | j++; | ||
| 258 | |||
| 259 | /* Reset the working pointer to the position after the last directory separator. */ | ||
| 260 | work_ptr = (CHAR *)&(media_ptr -> fx_media_rename_buffer[j]); | ||
| 261 | |||
| 262 | /* Now copy the new file name into the rename buffer. */ | ||
| 263 | i = 0; | ||
| 264 | while ((new_file_name[i]) && (j < FX_MAXIMUM_PATH)) | ||
| 265 | { | ||
| 266 | |||
| 267 | /* Copy a character into the rename buffer. */ | ||
| 268 | *work_ptr++ = new_file_name[i]; | ||
| 269 | |||
| 270 | /* Move to next character. */ | ||
| 271 | i++; | ||
| 272 | j++; | ||
| 273 | } | ||
| 274 | |||
| 275 | /* Determine if the path was successfully prepended. */ | ||
| 276 | if (new_file_name[i]) | ||
| 277 | { | ||
| 278 | |||
| 279 | /* No, there was not enough room in the destination buffer. */ | ||
| 280 | |||
| 281 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 282 | FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr); | ||
| 283 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 284 | |||
| 285 | /* Release media protection. */ | ||
| 286 | FX_UNPROTECT | ||
| 287 | |||
| 288 | /* Return the invalid path error code. */ | ||
| 289 | return(FX_INVALID_PATH); | ||
| 290 | } | ||
| 291 | |||
| 292 | /* Place a NULL at the end of the string. */ | ||
| 293 | *work_ptr = (CHAR)FX_NULL; | ||
| 294 | |||
| 295 | /* At this point, we have successfully prepended the path in the new file name, override | ||
| 296 | the new file name so it is used from now on. */ | ||
| 297 | new_file_name = (CHAR *)media_ptr -> fx_media_rename_buffer; | ||
| 298 | } | ||
| 299 | #endif | ||
| 300 | |||
| 301 | /* Search the target directory for the same file name. */ | ||
| 302 | 849 | status = _fx_directory_search(media_ptr, new_file_name, &new_dir_entry, &search_directory, &new_name_ptr); | |
| 303 | |||
| 304 | /* Determine if the name already exists. */ | ||
| 305 |
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849 | if (status == FX_SUCCESS) |
| 306 | { | ||
| 307 | |||
| 308 | /* Determine if the new name simply has an ASCII case change. If so, simply let the processing | ||
| 309 | continue. */ | ||
| 310 | 597 | i = 0; | |
| 311 | do | ||
| 312 | { | ||
| 313 | |||
| 314 | /* Pickup an old name and new name character and convert to upper case if necessary. */ | ||
| 315 | 10464 | alpha = old_file_name[i]; | |
| 316 |
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10464 | if ((alpha >= 'a') && (alpha <= 'z')) |
| 317 | { | ||
| 318 | |||
| 319 | /* Lower case, convert to upper case! */ | ||
| 320 | 9207 | alpha = (CHAR)((INT)alpha - 0x20); | |
| 321 | } | ||
| 322 | 10464 | beta = new_file_name[i]; | |
| 323 |
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10464 | if ((beta >= 'a') && (beta <= 'z')) |
| 324 | { | ||
| 325 | |||
| 326 | /* Lower case, convert to upper case! */ | ||
| 327 | 9750 | beta = (CHAR)((INT)beta - 0x20); | |
| 328 | } | ||
| 329 | |||
| 330 | /* Now compare the characters. */ | ||
| 331 |
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10464 | if ((alpha != beta) || (alpha == 0)) |
| 332 | { | ||
| 333 | |||
| 334 | /* Get out of this loop! */ | ||
| 335 | break; | ||
| 336 | } | ||
| 337 | |||
| 338 | /* Move to next character. */ | ||
| 339 | 9903 | i++; | |
| 340 |
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9903 | } while (i < (FX_MAXIMUM_PATH-1)); |
| 341 | |||
| 342 | /* Now determine if the names match. */ | ||
| 343 |
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597 | if (alpha != beta) |
| 344 | { | ||
| 345 | |||
| 346 | /* No, the names do not match so simply return an error | ||
| 347 | to the caller. */ | ||
| 348 | |||
| 349 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 350 | 192 | FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr); | |
| 351 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 352 | |||
| 353 | /* Release media protection. */ | ||
| 354 | 222 | FX_UNPROTECT | |
| 355 | |||
| 356 | /* Return the not a file error code. */ | ||
| 357 | 402 | return(FX_ALREADY_CREATED); | |
| 358 | } | ||
| 359 | } | ||
| 360 | |||
| 361 | /* Change the file name and look for extra stuff at the end. */ | ||
| 362 |
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447 | if (_fx_directory_name_extract(new_name_ptr, &new_dir_entry.fx_dir_entry_name[0])) |
| 363 | { | ||
| 364 | |||
| 365 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 366 | 4 | FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr); | |
| 367 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 368 | |||
| 369 | /* Release media protection. */ | ||
| 370 | 5 | FX_UNPROTECT | |
| 371 | |||
| 372 | /* Invalid name, return error status. */ | ||
| 373 | 9 | return(FX_INVALID_NAME); | |
| 374 | } | ||
| 375 | |||
| 376 | /* Search for a free spot in the target directory. */ | ||
| 377 | 438 | status = _fx_directory_free_search(media_ptr, &search_directory, &new_dir_entry); | |
| 378 | |||
| 379 | /* Determine if a free spot was found. */ | ||
| 380 |
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438 | if (status != FX_SUCCESS) |
| 381 | { | ||
| 382 | |||
| 383 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 384 | 4 | FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr); | |
| 385 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 386 | |||
| 387 | /* Release media protection. */ | ||
| 388 | 5 | FX_UNPROTECT | |
| 389 | |||
| 390 | /* Return the error code. */ | ||
| 391 | 9 | return(status); | |
| 392 | } | ||
| 393 | |||
| 394 | /* Extract the new file name. */ | ||
| 395 | 429 | _fx_directory_name_extract(new_name_ptr, &new_dir_entry.fx_dir_entry_name[0]); | |
| 396 | |||
| 397 | /* Determine if a long name is present. */ | ||
| 398 |
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429 | if (new_dir_entry.fx_dir_entry_long_name_present) |
| 399 | { | ||
| 400 | |||
| 401 | /* Yes, clear the short file name. */ | ||
| 402 | 351 | new_dir_entry.fx_dir_entry_short_name[0] = 0; | |
| 403 | } | ||
| 404 | |||
| 405 | /* Save the updated directory parameters. */ | ||
| 406 | 429 | new_dir_entry.fx_dir_entry_attributes = old_dir_entry.fx_dir_entry_attributes; | |
| 407 | 429 | new_dir_entry.fx_dir_entry_cluster = old_dir_entry.fx_dir_entry_cluster; | |
| 408 | 429 | new_dir_entry.fx_dir_entry_file_size = old_dir_entry.fx_dir_entry_file_size; | |
| 409 | |||
| 410 | /* Save the reserved field. */ | ||
| 411 | 429 | new_dir_entry.fx_dir_entry_reserved = old_dir_entry.fx_dir_entry_reserved; | |
| 412 | |||
| 413 | /* Set time and date stamps. */ | ||
| 414 | 429 | new_dir_entry.fx_dir_entry_created_time_ms = old_dir_entry.fx_dir_entry_created_time_ms; | |
| 415 | 429 | new_dir_entry.fx_dir_entry_created_time = old_dir_entry.fx_dir_entry_created_time; | |
| 416 | 429 | new_dir_entry.fx_dir_entry_created_date = old_dir_entry.fx_dir_entry_created_date; | |
| 417 | 429 | new_dir_entry.fx_dir_entry_last_accessed_date = old_dir_entry.fx_dir_entry_last_accessed_date; | |
| 418 | 429 | new_dir_entry.fx_dir_entry_time = old_dir_entry.fx_dir_entry_time; | |
| 419 | 429 | new_dir_entry.fx_dir_entry_date = old_dir_entry.fx_dir_entry_date; | |
| 420 | |||
| 421 | |||
| 422 | /* Is there a leading dot? */ | ||
| 423 |
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429 | if (new_dir_entry.fx_dir_entry_name[0] == '.') |
| 424 | { | ||
| 425 | |||
| 426 | /* Yes, toggle the hidden attribute bit. */ | ||
| 427 | 9 | new_dir_entry.fx_dir_entry_attributes |= FX_HIDDEN; | |
| 428 | } | ||
| 429 | |||
| 430 | #ifndef FX_MEDIA_DISABLE_SEARCH_CACHE | ||
| 431 | |||
| 432 | /* Invalidate the directory cache. */ | ||
| 433 | 429 | media_ptr -> fx_media_last_found_name[0] = FX_NULL; | |
| 434 | #endif | ||
| 435 | |||
| 436 | /* Now write out the directory entry. */ | ||
| 437 | 429 | status = _fx_directory_entry_write(media_ptr, &new_dir_entry); | |
| 438 | |||
| 439 | /* Determine if the write was successful. */ | ||
| 440 |
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429 | if (status != FX_SUCCESS) |
| 441 | { | ||
| 442 | |||
| 443 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 444 | 4 | FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr); | |
| 445 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 446 | |||
| 447 | /* Release media protection. */ | ||
| 448 | 5 | FX_UNPROTECT | |
| 449 | |||
| 450 | /* Return the error code. */ | ||
| 451 | 9 | return(status); | |
| 452 | } | ||
| 453 | |||
| 454 | #ifndef FX_DONT_UPDATE_OPEN_FILES | ||
| 455 | |||
| 456 | /* Search the opened files to update any currently opened files. */ | ||
| 457 | 420 | open_count = media_ptr -> fx_media_opened_file_count; | |
| 458 | 420 | search_ptr = media_ptr -> fx_media_opened_file_list; | |
| 459 |
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505 | while (open_count) |
| 460 | { | ||
| 461 | |||
| 462 | /* Look at each opened file to see if it matches the file being renamed. */ | ||
| 463 | 85 | if ((search_ptr -> fx_file_dir_entry.fx_dir_entry_log_sector == | |
| 464 |
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85 | old_dir_entry.fx_dir_entry_log_sector) && |
| 465 | 52 | (search_ptr -> fx_file_dir_entry.fx_dir_entry_byte_offset == | |
| 466 |
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52 | old_dir_entry.fx_dir_entry_byte_offset)) |
| 467 | { | ||
| 468 | |||
| 469 | /* Yes, the file being renamed is already open. Update the file's | ||
| 470 | information so that it is kept current. */ | ||
| 471 | 27 | search_ptr -> fx_file_dir_entry.fx_dir_entry_cluster = new_dir_entry.fx_dir_entry_cluster; | |
| 472 | 27 | search_ptr -> fx_file_dir_entry.fx_dir_entry_file_size = new_dir_entry.fx_dir_entry_file_size; | |
| 473 | 27 | search_ptr -> fx_file_dir_entry.fx_dir_entry_log_sector = new_dir_entry.fx_dir_entry_log_sector; | |
| 474 | 27 | search_ptr -> fx_file_dir_entry.fx_dir_entry_byte_offset = new_dir_entry.fx_dir_entry_byte_offset; | |
| 475 | |||
| 476 | /* Copy the new name into the file's name buffer. */ | ||
| 477 | 27 | i = 0; | |
| 478 |
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2556 | while (i < (FX_MAX_LONG_NAME_LEN - 1)) |
| 479 | { | ||
| 480 | |||
| 481 | /* Copy byte of the new name. */ | ||
| 482 | 2547 | search_ptr -> fx_file_dir_entry.fx_dir_entry_name[i] = new_dir_entry.fx_dir_entry_name[i]; | |
| 483 | |||
| 484 | /* Move to the next character. */ | ||
| 485 | 2547 | i++; | |
| 486 | |||
| 487 | /* Determine if we are at the end of the name. */ | ||
| 488 |
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2547 | if (new_dir_entry.fx_dir_entry_name[i] == FX_NULL) |
| 489 | { | ||
| 490 | |||
| 491 | /* Determine if we are not at the maximum name size. */ | ||
| 492 |
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27 | if (i < (FX_MAX_LONG_NAME_LEN - 1)) |
| 493 | { | ||
| 494 | |||
| 495 | /* Get out of the loop. */ | ||
| 496 | 18 | break; | |
| 497 | } | ||
| 498 | } | ||
| 499 | } | ||
| 500 | |||
| 501 | /* Set the NULL termination in the copy of the new name. */ | ||
| 502 | 27 | search_ptr -> fx_file_dir_entry.fx_dir_entry_name[i] = FX_NULL; | |
| 503 | } | ||
| 504 | |||
| 505 | /* Adjust the pointer and decrement the search count. */ | ||
| 506 | 85 | search_ptr = search_ptr -> fx_file_opened_next; | |
| 507 | 85 | open_count--; | |
| 508 | } | ||
| 509 | #endif | ||
| 510 | |||
| 511 | /* Now we are ready to remove the old directory entry. */ | ||
| 512 | 420 | old_dir_entry.fx_dir_entry_name[0] = (CHAR)FX_DIR_ENTRY_FREE; | |
| 513 | 420 | old_dir_entry.fx_dir_entry_short_name[0] = (CHAR)FX_DIR_ENTRY_FREE; | |
| 514 | |||
| 515 | /* Now wipe out the old directory entry. */ | ||
| 516 | 420 | status = _fx_directory_entry_write(media_ptr, &old_dir_entry); | |
| 517 | |||
| 518 | #ifdef FX_ENABLE_FAULT_TOLERANT | ||
| 519 | /* Check for a bad status. */ | ||
| 520 |
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220 | if (status != FX_SUCCESS) |
| 521 | { | ||
| 522 | |||
| 523 | 4 | FX_FAULT_TOLERANT_TRANSACTION_FAIL(media_ptr); | |
| 524 | |||
| 525 | /* Release media protection. */ | ||
| 526 | 2 | FX_UNPROTECT | |
| 527 | |||
| 528 | /* Return the bad status. */ | ||
| 529 | 4 | return(status); | |
| 530 | } | ||
| 531 | |||
| 532 | /* End transaction. */ | ||
| 533 | 216 | status = _fx_fault_tolerant_transaction_end(media_ptr); | |
| 534 | #endif /* FX_ENABLE_FAULT_TOLERANT */ | ||
| 535 | |||
| 536 | /* Release media protection. */ | ||
| 537 | 216 | FX_UNPROTECT | |
| 538 | |||
| 539 | /* File rename is complete, return status. */ | ||
| 540 | 392 | return(status); | |
| 541 | } | ||
| 542 | |||
| 543 |