cd9660.c revision 1.22.2.2
1 /* $NetBSD: cd9660.c,v 1.22.2.2 2010/01/02 06:45:03 snj Exp $ */ 2 3 /* 4 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan 5 * Perez-Rathke and Ram Vedam. All rights reserved. 6 * 7 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys, 8 * Alan Perez-Rathke and Ram Vedam. 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer in the documentation and/or other materials provided 18 * with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN 21 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN 25 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 28 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 29 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 32 * OF SUCH DAMAGE. 33 */ 34 /* 35 * Copyright (c) 2001 Wasabi Systems, Inc. 36 * All rights reserved. 37 * 38 * Written by Luke Mewburn for Wasabi Systems, Inc. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 1. Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * 2. Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in the 47 * documentation and/or other materials provided with the distribution. 48 * 3. All advertising materials mentioning features or use of this software 49 * must display the following acknowledgement: 50 * This product includes software developed for the NetBSD Project by 51 * Wasabi Systems, Inc. 52 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 53 * or promote products derived from this software without specific prior 54 * written permission. 55 * 56 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 57 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 58 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 59 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 60 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 61 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 62 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 63 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 64 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 65 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 66 * POSSIBILITY OF SUCH DAMAGE. 67 */ 68 /* 69 * Copyright (c) 1982, 1986, 1989, 1993 70 * The Regents of the University of California. All rights reserved. 71 * 72 * Redistribution and use in source and binary forms, with or without 73 * modification, are permitted provided that the following conditions 74 * are met: 75 * 1. Redistributions of source code must retain the above copyright 76 * notice, this list of conditions and the following disclaimer. 77 * 2. Redistributions in binary form must reproduce the above copyright 78 * notice, this list of conditions and the following disclaimer in the 79 * documentation and/or other materials provided with the distribution. 80 * 3. Neither the name of the University nor the names of its contributors 81 * may be used to endorse or promote products derived from this software 82 * without specific prior written permission. 83 * 84 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 85 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 86 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 87 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 88 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 89 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 90 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 91 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 92 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 93 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 94 * SUCH DAMAGE. 95 * 96 */ 97 98 #if HAVE_NBTOOL_CONFIG_H 99 #include "nbtool_config.h" 100 #else 101 #include <sys/mount.h> 102 #endif 103 104 #include <sys/cdefs.h> 105 #if defined(__RCSID) && !defined(__lint) 106 __RCSID("$NetBSD: cd9660.c,v 1.22.2.2 2010/01/02 06:45:03 snj Exp $"); 107 #endif /* !__lint */ 108 109 #include <string.h> 110 #include <ctype.h> 111 #include <sys/param.h> 112 #include <sys/queue.h> 113 114 #include "makefs.h" 115 #include "cd9660.h" 116 #include "cd9660/iso9660_rrip.h" 117 118 /* 119 * Global variables 120 */ 121 iso9660_disk diskStructure; 122 123 static void cd9660_finalize_PVD(void); 124 static cd9660node *cd9660_allocate_cd9660node(void); 125 static void cd9660_set_defaults(void); 126 static int cd9660_arguments_set_string(const char *, const char *, int, 127 char, char *); 128 static void cd9660_populate_iso_dir_record( 129 struct _iso_directory_record_cd9660 *, u_char, u_char, u_char, 130 const char *); 131 static void cd9660_setup_root_node(void); 132 static int cd9660_setup_volume_descriptors(void); 133 #if 0 134 static int cd9660_fill_extended_attribute_record(cd9660node *); 135 #endif 136 static void cd9660_sort_nodes(cd9660node *); 137 static int cd9960_translate_node_common(cd9660node *); 138 static int cd9660_translate_node(fsnode *, cd9660node *); 139 static int cd9660_compare_filename(const char *, const char *); 140 static void cd9660_sorted_child_insert(cd9660node *, cd9660node *); 141 static int cd9660_handle_collisions(cd9660node *, int); 142 static cd9660node *cd9660_rename_filename(cd9660node *, int, int); 143 static void cd9660_copy_filenames(cd9660node *); 144 static void cd9660_sorting_nodes(cd9660node *); 145 static int cd9660_count_collisions(cd9660node *); 146 static cd9660node *cd9660_rrip_move_directory(cd9660node *); 147 static int cd9660_add_dot_records(cd9660node *); 148 149 static void cd9660_convert_structure(fsnode *, cd9660node *, int, 150 int *, int *); 151 static void cd9660_free_structure(cd9660node *); 152 static int cd9660_generate_path_table(void); 153 static int cd9660_level1_convert_filename(const char *, char *, int); 154 static int cd9660_level2_convert_filename(const char *, char *, int); 155 #if 0 156 static int cd9660_joliet_convert_filename(const char *, char *, int); 157 #endif 158 static int cd9660_convert_filename(const char *, char *, int); 159 static void cd9660_populate_dot_records(cd9660node *); 160 static int cd9660_compute_offsets(cd9660node *, int); 161 #if 0 162 static int cd9660_copy_stat_info(cd9660node *, cd9660node *, int); 163 #endif 164 static cd9660node *cd9660_create_virtual_entry(const char *, cd9660node *, int, 165 int); 166 static cd9660node *cd9660_create_file(const char *, cd9660node *, cd9660node *); 167 static cd9660node *cd9660_create_directory(const char *, cd9660node *, 168 cd9660node *); 169 static cd9660node *cd9660_create_special_directory(u_char, cd9660node *); 170 171 172 /* 173 * Allocate and initalize a cd9660node 174 * @returns struct cd9660node * Pointer to new node, or NULL on error 175 */ 176 static cd9660node * 177 cd9660_allocate_cd9660node(void) 178 { 179 cd9660node *temp; 180 181 if ((temp = calloc(1, sizeof(cd9660node))) == NULL) 182 err(EXIT_FAILURE, "%s: calloc", __func__); 183 TAILQ_INIT(&temp->cn_children); 184 temp->parent = temp->dot_record = temp->dot_dot_record = NULL; 185 temp->ptnext = temp->ptprev = temp->ptlast = NULL; 186 temp->node = NULL; 187 temp->isoDirRecord = NULL; 188 temp->isoExtAttributes = NULL; 189 temp->rr_real_parent = temp->rr_relocated = NULL; 190 temp->su_tail_data = NULL; 191 return temp; 192 } 193 194 int cd9660_defaults_set = 0; 195 196 /** 197 * Set default values for cd9660 extension to makefs 198 */ 199 static void 200 cd9660_set_defaults(void) 201 { 202 /*Fix the sector size for now, though the spec allows for other sizes*/ 203 diskStructure.sectorSize = 2048; 204 205 /* Set up defaults in our own structure */ 206 diskStructure.verbose_level = 0; 207 diskStructure.keep_bad_images = 0; 208 diskStructure.follow_sym_links = 0; 209 diskStructure.isoLevel = 2; 210 211 diskStructure.rock_ridge_enabled = 0; 212 diskStructure.rock_ridge_renamed_dir_name = 0; 213 diskStructure.rock_ridge_move_count = 0; 214 diskStructure.rr_moved_dir = 0; 215 216 diskStructure.include_padding_areas = 1; 217 218 /* Spec breaking functionality */ 219 diskStructure.allow_deep_trees = 220 diskStructure.allow_start_dot = 221 diskStructure.allow_max_name = 222 diskStructure.allow_illegal_chars = 223 diskStructure.allow_lowercase = 224 diskStructure.allow_multidot = 225 diskStructure.omit_trailing_period = 0; 226 227 /* Make sure the PVD is clear */ 228 memset(&diskStructure.primaryDescriptor, 0, 2048); 229 230 memset(diskStructure.primaryDescriptor.volume_set_id, 0x20,32); 231 memset(diskStructure.primaryDescriptor.publisher_id, 0x20,128); 232 memset(diskStructure.primaryDescriptor.preparer_id, 0x20,128); 233 memset(diskStructure.primaryDescriptor.application_id, 0x20,128); 234 memset(diskStructure.primaryDescriptor.copyright_file_id, 0x20,128); 235 memset(diskStructure.primaryDescriptor.abstract_file_id, 0x20,128); 236 memset(diskStructure.primaryDescriptor.bibliographic_file_id, 0x20,128); 237 238 strcpy(diskStructure.primaryDescriptor.system_id,"NetBSD"); 239 240 cd9660_defaults_set = 1; 241 242 /* Boot support: Initially disabled */ 243 diskStructure.has_generic_bootimage = 0; 244 diskStructure.generic_bootimage = NULL; 245 246 diskStructure.boot_image_directory = 0; 247 /*memset(diskStructure.boot_descriptor, 0, 2048);*/ 248 249 diskStructure.is_bootable = 0; 250 TAILQ_INIT(&diskStructure.boot_images); 251 LIST_INIT(&diskStructure.boot_entries); 252 } 253 254 void 255 cd9660_prep_opts(fsinfo_t *fsopts __unused) 256 { 257 cd9660_set_defaults(); 258 } 259 260 void 261 cd9660_cleanup_opts(fsinfo_t *fsopts __unused) 262 { 263 264 } 265 266 static int 267 cd9660_arguments_set_string(const char *val, const char *fieldtitle, int length, 268 char testmode, char * dest) 269 { 270 int len, test; 271 272 if (val == NULL) 273 warnx("error: The %s requires a string argument", fieldtitle); 274 else if ((len = strlen(val)) <= length) { 275 if (testmode == 'd') 276 test = cd9660_valid_d_chars(val); 277 else 278 test = cd9660_valid_a_chars(val); 279 if (test) { 280 memcpy(dest, val, len); 281 if (test == 2) 282 cd9660_uppercase_characters(dest, len); 283 return 1; 284 } else 285 warnx("error: The %s must be composed of " 286 "%c-characters", fieldtitle, testmode); 287 } else 288 warnx("error: The %s must be at most 32 characters long", 289 fieldtitle); 290 return 0; 291 } 292 293 /* 294 * Command-line parsing function 295 */ 296 297 int 298 cd9660_parse_opts(const char *option, fsinfo_t *fsopts) 299 { 300 char *var, *val; 301 int rv; 302 /* Set up allowed options - integer options ONLY */ 303 option_t cd9660_options[] = { 304 { "l", &diskStructure.isoLevel, 1, 3, "ISO Level" }, 305 { "isolevel", &diskStructure.isoLevel, 1, 3, "ISO Level" }, 306 { "verbose", &diskStructure.verbose_level, 0, 2, 307 "Turns on verbose output" }, 308 { "v", &diskStructure.verbose_level, 0 , 2, 309 "Turns on verbose output"}, 310 { .name = NULL } 311 }; 312 313 if (cd9660_defaults_set == 0) 314 cd9660_set_defaults(); 315 316 /* 317 * Todo : finish implementing this, and make a function that 318 * parses them 319 */ 320 /* 321 string_option_t cd9660_string_options[] = { 322 { "L", "Label", &diskStructure.primaryDescriptor.volume_id, 1, 32, "Disk Label", ISO_STRING_FILTER_DCHARS }, 323 { NULL } 324 } 325 */ 326 327 assert(option != NULL); 328 assert(fsopts != NULL); 329 330 if (debug & DEBUG_FS_PARSE_OPTS) 331 printf("cd9660_parse_opts: got `%s'\n", option); 332 333 if ((var = strdup(option)) == NULL) 334 err(1, "allocating memory for copy of option string"); 335 rv = 1; 336 337 val = strchr(var, '='); 338 if (val != NULL) 339 *val++ = '\0'; 340 341 /* First handle options with no parameters */ 342 if (strcmp(var, "h") == 0) { 343 diskStructure.displayHelp = 1; 344 rv = 1; 345 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "S", "follow-symlinks")) { 346 /* this is not handled yet */ 347 diskStructure.follow_sym_links = 1; 348 rv = 1; 349 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "L", "label")) { 350 rv = cd9660_arguments_set_string(val, "Disk Label", 32, 'd', 351 diskStructure.primaryDescriptor.volume_id); 352 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "A", "applicationid")) { 353 rv = cd9660_arguments_set_string(val, "Application Identifier", 128, 'a', 354 diskStructure.primaryDescriptor.application_id); 355 } else if(CD9660_IS_COMMAND_ARG_DUAL(var, "P", "publisher")) { 356 rv = cd9660_arguments_set_string(val, "Publisher Identifier", 357 128, 'a', diskStructure.primaryDescriptor.publisher_id); 358 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "p", "preparer")) { 359 rv = cd9660_arguments_set_string(val, "Preparer Identifier", 360 128, 'a', diskStructure.primaryDescriptor.preparer_id); 361 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "V", "volumeid")) { 362 rv = cd9660_arguments_set_string(val, "Volume Set Identifier", 363 128, 'a', diskStructure.primaryDescriptor.volume_set_id); 364 /* Boot options */ 365 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "B", "bootimage")) { 366 if (val == NULL) 367 warnx("error: The Boot Image parameter requires a valid boot information string"); 368 else 369 rv = cd9660_add_boot_disk(val); 370 } else if (CD9660_IS_COMMAND_ARG(var, "bootimagedir")) { 371 /* 372 * XXXfvdl this is unused. 373 */ 374 if (val == NULL) 375 errx(1, "error: The Boot Image Directory parameter" 376 " requires a directory name\n"); 377 else { 378 if ((diskStructure.boot_image_directory = 379 malloc(strlen(val) + 1)) == NULL) { 380 CD9660_MEM_ALLOC_ERROR("cd9660_parse_opts"); 381 exit(1); 382 } 383 384 /* BIG TODO: Add the max length function here */ 385 cd9660_arguments_set_string(val, "Boot Image Directory", 386 12 , 'd', diskStructure.boot_image_directory); 387 } 388 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "G", "generic-bootimage")) { 389 if (val == NULL) 390 warnx("error: The Boot Image parameter requires a valid boot information string"); 391 else 392 rv = cd9660_add_generic_bootimage(val); 393 } else if (CD9660_IS_COMMAND_ARG(var, "no-trailing-padding")) 394 diskStructure.include_padding_areas = 0; 395 /* RRIP */ 396 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "R", "rockridge")) 397 diskStructure.rock_ridge_enabled = 1; 398 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "K", "keep-bad-images")) 399 diskStructure.keep_bad_images = 1; 400 else if (CD9660_IS_COMMAND_ARG(var, "allow-deep-trees")) 401 diskStructure.allow_deep_trees = 1; 402 else if (CD9660_IS_COMMAND_ARG(var, "allow-max-name")) 403 diskStructure.allow_max_name = 1; 404 else if (CD9660_IS_COMMAND_ARG(var, "allow-illegal-chars")) 405 diskStructure.allow_illegal_chars = 1; 406 else if (CD9660_IS_COMMAND_ARG(var, "allow-lowercase")) 407 diskStructure.allow_lowercase = 1; 408 else if (CD9660_IS_COMMAND_ARG(var,"allow-multidot")) 409 diskStructure.allow_multidot = 1; 410 else if (CD9660_IS_COMMAND_ARG(var, "omit-trailing-period")) 411 diskStructure.omit_trailing_period = 1; 412 else if (CD9660_IS_COMMAND_ARG(var, "no-emul-boot") || 413 CD9660_IS_COMMAND_ARG(var, "no-boot") || 414 CD9660_IS_COMMAND_ARG(var, "hard-disk-boot")) { 415 cd9660_eltorito_add_boot_option(var, 0); 416 417 /* End of flag variables */ 418 } else if (CD9660_IS_COMMAND_ARG(var, "boot-load-segment")) { 419 if (val == NULL) { 420 warnx("Option `%s' doesn't contain a value", var); 421 rv = 0; 422 } else { 423 cd9660_eltorito_add_boot_option(var, val); 424 } 425 } else 426 rv = set_option(cd9660_options, var, val); 427 428 if (var) 429 free(var); 430 return (rv); 431 } 432 433 /* 434 * Main function for cd9660_makefs 435 * Builds the ISO image file 436 * @param const char *image The image filename to create 437 * @param const char *dir The directory that is being read 438 * @param struct fsnode *root The root node of the filesystem tree 439 * @param struct fsinfo_t *fsopts Any options 440 */ 441 void 442 cd9660_makefs(const char *image, const char *dir, fsnode *root, 443 fsinfo_t *fsopts) 444 { 445 int startoffset; 446 int numDirectories; 447 int pathTableSectors; 448 int firstAvailableSector; 449 int totalSpace; 450 int error; 451 cd9660node *real_root; 452 453 if (diskStructure.verbose_level > 0) 454 printf("cd9660_makefs: ISO level is %i\n", 455 diskStructure.isoLevel); 456 if (diskStructure.isoLevel < 2 && 457 diskStructure.allow_multidot) 458 errx(1, "allow-multidot requires iso level of 2\n"); 459 460 assert(image != NULL); 461 assert(dir != NULL); 462 assert(root != NULL); 463 assert(fsopts != NULL); 464 465 if (diskStructure.displayHelp) { 466 /* 467 * Display help here - probably want to put it in 468 * a separate function 469 */ 470 return; 471 } 472 473 diskStructure.rootFilesystemPath = dir; 474 475 if (diskStructure.verbose_level > 0) 476 printf("cd9660_makefs: image %s directory %s root %p\n", 477 image, dir, root); 478 479 /* Set up some constants. Later, these will be defined with options */ 480 481 /* Counter needed for path tables */ 482 numDirectories = 0; 483 484 /* Convert tree to our own format */ 485 /* Actually, we now need to add the REAL root node, at level 0 */ 486 487 real_root = cd9660_allocate_cd9660node(); 488 if ((real_root->isoDirRecord = 489 malloc( sizeof(iso_directory_record_cd9660) )) == NULL) { 490 CD9660_MEM_ALLOC_ERROR("cd9660_makefs"); 491 exit(1); 492 } 493 494 /* Leave filename blank for root */ 495 memset(real_root->isoDirRecord->name, 0, 496 ISO_FILENAME_MAXLENGTH_WITH_PADDING); 497 498 real_root->level = 0; 499 diskStructure.rootNode = real_root; 500 real_root->type = CD9660_TYPE_DIR; 501 error = 0; 502 real_root->node = root; 503 cd9660_convert_structure(root, real_root, 1, &numDirectories, &error); 504 505 if (TAILQ_EMPTY(&real_root->cn_children)) { 506 errx(1, "cd9660_makefs: converted directory is empty. " 507 "Tree conversion failed\n"); 508 } else if (error != 0) { 509 errx(1, "cd9660_makefs: tree conversion failed\n"); 510 } else { 511 if (diskStructure.verbose_level > 0) 512 printf("cd9660_makefs: tree converted\n"); 513 } 514 515 /* Add the dot and dot dot records */ 516 cd9660_add_dot_records(real_root); 517 518 cd9660_setup_root_node(); 519 520 if (diskStructure.verbose_level > 0) 521 printf("cd9660_makefs: done converting tree\n"); 522 523 /* Rock ridge / SUSP init pass */ 524 if (diskStructure.rock_ridge_enabled) { 525 cd9660_susp_initialize(diskStructure.rootNode, 526 diskStructure.rootNode, NULL); 527 } 528 529 /* Build path table structure */ 530 diskStructure.pathTableLength = cd9660_generate_path_table(); 531 532 pathTableSectors = CD9660_BLOCKS(diskStructure.sectorSize, 533 diskStructure.pathTableLength); 534 535 firstAvailableSector = cd9660_setup_volume_descriptors(); 536 if (diskStructure.is_bootable) { 537 firstAvailableSector = cd9660_setup_boot(firstAvailableSector); 538 if (firstAvailableSector < 0) 539 errx(1, "setup_boot failed"); 540 } 541 /* LE first, then BE */ 542 diskStructure.primaryLittleEndianTableSector = firstAvailableSector; 543 diskStructure.primaryBigEndianTableSector = 544 diskStructure.primaryLittleEndianTableSector + pathTableSectors; 545 546 /* Set the secondary ones to -1, not going to use them for now */ 547 diskStructure.secondaryBigEndianTableSector = -1; 548 diskStructure.secondaryLittleEndianTableSector = -1; 549 550 diskStructure.dataFirstSector = 551 diskStructure.primaryBigEndianTableSector + pathTableSectors; 552 if (diskStructure.verbose_level > 0) 553 printf("cd9660_makefs: Path table conversion complete. " 554 "Each table is %i bytes, or %i sectors.\n", 555 diskStructure.pathTableLength, pathTableSectors); 556 557 startoffset = diskStructure.sectorSize*diskStructure.dataFirstSector; 558 559 totalSpace = cd9660_compute_offsets(real_root, startoffset); 560 561 diskStructure.totalSectors = diskStructure.dataFirstSector + 562 CD9660_BLOCKS(diskStructure.sectorSize, totalSpace); 563 564 /* Disabled until pass 1 is done */ 565 if (diskStructure.rock_ridge_enabled) { 566 diskStructure.susp_continuation_area_start_sector = 567 diskStructure.totalSectors; 568 diskStructure.totalSectors += 569 CD9660_BLOCKS(diskStructure.sectorSize, 570 diskStructure.susp_continuation_area_size); 571 cd9660_susp_finalize(diskStructure.rootNode); 572 } 573 574 575 cd9660_finalize_PVD(); 576 577 /* Add padding sectors, just for testing purposes right now */ 578 /* diskStructure.totalSectors+=150; */ 579 580 /* Debugging output */ 581 if (diskStructure.verbose_level > 0) { 582 printf("cd9660_makefs: Sectors 0-15 reserved\n"); 583 printf("cd9660_makefs: Primary path tables starts in sector %i\n", 584 diskStructure.primaryLittleEndianTableSector); 585 printf("cd9660_makefs: File data starts in sector %i\n", 586 diskStructure.dataFirstSector); 587 printf("cd9660_makefs: Total sectors: %i\n",diskStructure.totalSectors); 588 } 589 590 /* 591 * Add padding sectors at the end 592 * TODO: Clean this up and separate padding 593 */ 594 if (diskStructure.include_padding_areas) 595 diskStructure.totalSectors += 150; 596 597 cd9660_write_image(image); 598 599 if (diskStructure.verbose_level > 1) { 600 debug_print_volume_descriptor_information(); 601 debug_print_tree(real_root,0); 602 debug_print_path_tree(real_root); 603 } 604 605 /* Clean up data structures */ 606 cd9660_free_structure(real_root); 607 608 if (diskStructure.verbose_level > 0) 609 printf("cd9660_makefs: done\n"); 610 } 611 612 /* Generic function pointer - implement later */ 613 typedef int (*cd9660node_func)(cd9660node *); 614 615 static void 616 cd9660_finalize_PVD(void) 617 { 618 time_t tim; 619 unsigned char *temp; 620 621 /* Copy the root directory record */ 622 temp = (unsigned char *) &diskStructure.primaryDescriptor; 623 624 /* root should be a fixed size of 34 bytes since it has no name */ 625 memcpy(diskStructure.primaryDescriptor.root_directory_record, 626 diskStructure.rootNode->dot_record->isoDirRecord, 34); 627 628 /* In RRIP, this might be longer than 34 */ 629 diskStructure.primaryDescriptor.root_directory_record[0] = 34; 630 631 /* Set up all the important numbers in the PVD */ 632 cd9660_bothendian_dword(diskStructure.totalSectors, 633 (unsigned char *)diskStructure.primaryDescriptor.volume_space_size); 634 cd9660_bothendian_word(1, 635 (unsigned char *)diskStructure.primaryDescriptor.volume_set_size); 636 cd9660_bothendian_word(1, 637 (unsigned char *) 638 diskStructure.primaryDescriptor.volume_sequence_number); 639 cd9660_bothendian_word(diskStructure.sectorSize, 640 (unsigned char *) 641 diskStructure.primaryDescriptor.logical_block_size); 642 cd9660_bothendian_dword(diskStructure.pathTableLength, 643 (unsigned char *)diskStructure.primaryDescriptor.path_table_size); 644 645 cd9660_731(diskStructure.primaryLittleEndianTableSector, 646 (u_char *)diskStructure.primaryDescriptor.type_l_path_table); 647 cd9660_732(diskStructure.primaryBigEndianTableSector, 648 (u_char *)diskStructure.primaryDescriptor.type_m_path_table); 649 650 diskStructure.primaryDescriptor.file_structure_version[0] = 1; 651 652 /* Pad all strings with spaces instead of nulls */ 653 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_id, 32); 654 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.system_id, 32); 655 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_set_id, 656 128); 657 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.publisher_id, 658 128); 659 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.preparer_id, 660 128); 661 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.application_id, 662 128); 663 cd9660_pad_string_spaces( 664 diskStructure.primaryDescriptor.copyright_file_id, 128); 665 cd9660_pad_string_spaces( 666 diskStructure.primaryDescriptor.abstract_file_id, 128); 667 cd9660_pad_string_spaces( 668 diskStructure.primaryDescriptor.bibliographic_file_id, 128); 669 670 /* Setup dates */ 671 time(&tim); 672 cd9660_time_8426( 673 (unsigned char *)diskStructure.primaryDescriptor.creation_date, 674 tim); 675 cd9660_time_8426( 676 (unsigned char *)diskStructure.primaryDescriptor.modification_date, 677 tim); 678 679 /* 680 cd9660_set_date(diskStructure.primaryDescriptor.expiration_date, now); 681 */ 682 683 memset(diskStructure.primaryDescriptor.expiration_date, '0' ,17); 684 cd9660_time_8426( 685 (unsigned char *)diskStructure.primaryDescriptor.effective_date, 686 tim); 687 } 688 689 static void 690 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record, 691 u_char ext_attr_length, u_char flags, 692 u_char name_len, const char * name) 693 { 694 record->ext_attr_length[0] = ext_attr_length; 695 record->flags[0] = ISO_FLAG_CLEAR | flags; 696 record->file_unit_size[0] = 0; 697 record->interleave[0] = 0; 698 cd9660_bothendian_word(1, record->volume_sequence_number); 699 record->name_len[0] = name_len; 700 memset(record->name, '\0', sizeof (record->name)); 701 memcpy(record->name, name, name_len); 702 record->length[0] = 33 + name_len; 703 704 /* Todo : better rounding */ 705 record->length[0] += (record->length[0] & 1) ? 1 : 0; 706 } 707 708 static void 709 cd9660_setup_root_node(void) 710 { 711 cd9660_populate_iso_dir_record(diskStructure.rootNode->isoDirRecord, 712 0, ISO_FLAG_DIRECTORY, 1, "\0"); 713 714 } 715 716 /*********** SUPPORT FUNCTIONS ***********/ 717 static int 718 cd9660_setup_volume_descriptors(void) 719 { 720 /* Boot volume descriptor should come second */ 721 int sector = 16; 722 /* For now, a fixed 2 : PVD and terminator */ 723 volume_descriptor *temp, *t; 724 725 /* Set up the PVD */ 726 if ((temp = malloc(sizeof(volume_descriptor))) == NULL) { 727 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors"); 728 exit(1); 729 } 730 731 temp->volumeDescriptorData = 732 (unsigned char *)&diskStructure.primaryDescriptor; 733 temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD; 734 temp->volumeDescriptorData[6] = 1; 735 temp->sector = sector; 736 memcpy(temp->volumeDescriptorData + 1, 737 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 738 diskStructure.firstVolumeDescriptor = temp; 739 740 sector++; 741 /* Set up boot support if enabled. BVD must reside in sector 17 */ 742 if (diskStructure.is_bootable) { 743 if ((t = malloc(sizeof(volume_descriptor))) == NULL) { 744 CD9660_MEM_ALLOC_ERROR( 745 "cd9660_setup_volume_descriptors"); 746 exit(1); 747 } 748 if ((t->volumeDescriptorData = malloc(2048)) == NULL) { 749 CD9660_MEM_ALLOC_ERROR( 750 "cd9660_setup_volume_descriptors"); 751 exit(1); 752 } 753 temp->next = t; 754 temp = t; 755 memset(t->volumeDescriptorData, 0, 2048); 756 t->sector = 17; 757 if (diskStructure.verbose_level > 0) 758 printf("Setting up boot volume descriptor\n"); 759 cd9660_setup_boot_volume_descriptor(t); 760 sector++; 761 } 762 763 /* Set up the terminator */ 764 if ((t = malloc(sizeof(volume_descriptor))) == NULL) { 765 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors"); 766 exit(1); 767 } 768 if ((t->volumeDescriptorData = malloc(2048)) == NULL) { 769 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors"); 770 exit(1); 771 } 772 773 temp->next = t; 774 memset(t->volumeDescriptorData, 0, 2048); 775 t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR; 776 t->next = 0; 777 t->volumeDescriptorData[6] = 1; 778 t->sector = sector; 779 memcpy(t->volumeDescriptorData + 1, 780 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 781 782 sector++; 783 return sector; 784 } 785 786 #if 0 787 /* 788 * Populate EAR at some point. Not required, but is used by NetBSD's 789 * cd9660 support 790 */ 791 static int 792 cd9660_fill_extended_attribute_record(cd9660node *node) 793 { 794 if ((node->isoExtAttributes = 795 malloc(sizeof(struct iso_extended_attributes))) == NULL) { 796 CD9660_MEM_ALLOC_ERROR("cd9660_fill_extended_attribute_record"); 797 exit(1); 798 }; 799 800 return 1; 801 } 802 #endif 803 804 static int 805 cd9960_translate_node_common(cd9660node *newnode) 806 { 807 time_t tim; 808 int test; 809 u_char flag; 810 char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING]; 811 812 /* Now populate the isoDirRecord structure */ 813 memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING); 814 815 test = cd9660_convert_filename(newnode->node->name, 816 temp, !(S_ISDIR(newnode->node->type))); 817 818 flag = ISO_FLAG_CLEAR; 819 if (S_ISDIR(newnode->node->type)) 820 flag |= ISO_FLAG_DIRECTORY; 821 822 cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0, 823 flag, strlen(temp), temp); 824 825 /* Set the various dates */ 826 827 /* If we want to use the current date and time */ 828 time(&tim); 829 830 cd9660_time_915(newnode->isoDirRecord->date, tim); 831 832 cd9660_bothendian_dword(newnode->fileDataLength, 833 newnode->isoDirRecord->size); 834 /* If the file is a link, we want to set the size to 0 */ 835 if (S_ISLNK(newnode->node->type)) 836 newnode->fileDataLength = 0; 837 838 return 1; 839 } 840 841 /* 842 * Translate fsnode to cd9960node 843 * Translate filenames and other metadata, including dates, sizes, 844 * permissions, etc 845 * @param struct fsnode * The node generated by makefs 846 * @param struct cd9660node * The intermediate node to be written to 847 * @returns int 0 on failure, 1 on success 848 */ 849 static int 850 cd9660_translate_node(fsnode *node, cd9660node *newnode) 851 { 852 if (node == NULL) { 853 if (diskStructure.verbose_level > 0) 854 printf("cd9660_translate_node: NULL node passed, " 855 "returning\n"); 856 return 0; 857 } 858 if ((newnode->isoDirRecord = 859 malloc(sizeof(iso_directory_record_cd9660))) == NULL) { 860 CD9660_MEM_ALLOC_ERROR("cd9660_translate_node"); 861 return 0; 862 } 863 864 /* Set the node pointer */ 865 newnode->node = node; 866 867 /* Set the size */ 868 if (!(S_ISDIR(node->type))) 869 newnode->fileDataLength = node->inode->st.st_size; 870 871 if (cd9960_translate_node_common(newnode) == 0) 872 return 0; 873 874 /* Finally, overwrite some of the values that are set by default */ 875 cd9660_time_915(newnode->isoDirRecord->date, node->inode->st.st_mtime); 876 877 return 1; 878 } 879 880 /* 881 * Compares two ISO filenames 882 * @param const char * The first file name 883 * @param const char * The second file name 884 * @returns : -1 if first is less than second, 0 if they are the same, 1 if 885 * the second is greater than the first 886 */ 887 static int 888 cd9660_compare_filename(const char *first, const char *second) 889 { 890 /* 891 * This can be made more optimal once it has been tested 892 * (the extra character, for example, is for testing) 893 */ 894 895 int p1 = 0; 896 int p2 = 0; 897 char c1, c2; 898 /* First, on the filename */ 899 900 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1 901 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) { 902 c1 = first[p1]; 903 c2 = second[p2]; 904 if (c1 == '.' && c2 =='.') 905 break; 906 else if (c1 == '.') { 907 p2++; 908 c1 = ' '; 909 } else if (c2 == '.') { 910 p1++; 911 c2 = ' '; 912 } else { 913 p1++; 914 p2++; 915 } 916 917 if (c1 < c2) 918 return -1; 919 else if (c1 > c2) { 920 return 1; 921 } 922 } 923 924 if (first[p1] == '.' && second[p2] == '.') { 925 p1++; 926 p2++; 927 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1 928 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) { 929 c1 = first[p1]; 930 c2 = second[p2]; 931 if (c1 == ';' && c2 == ';') 932 break; 933 else if (c1 == ';') { 934 p2++; 935 c1 = ' '; 936 } else if (c2 == ';') { 937 p1++; 938 c2 = ' '; 939 } else { 940 p1++; 941 p2++; 942 } 943 944 if (c1 < c2) 945 return -1; 946 else if (c1 > c2) 947 return 1; 948 } 949 } 950 return 0; 951 } 952 953 /* 954 * Insert a node into list with ISO sorting rules 955 * @param cd9660node * The head node of the list 956 * @param cd9660node * The node to be inserted 957 */ 958 static void 959 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new) 960 { 961 int compare; 962 cd9660node *cn; 963 struct cd9660_children_head *head = &parent->cn_children; 964 965 /* TODO: Optimize? */ 966 cn_new->parent = parent; 967 968 /* 969 * first will either be 0, the . or the .. 970 * if . or .., this means no other entry may be written before first 971 * if 0, the new node may be inserted at the head 972 */ 973 974 TAILQ_FOREACH(cn, head, cn_next_child) { 975 /* 976 * Dont insert a node twice - 977 * that would cause an infinite loop 978 */ 979 if (cn_new == cn) 980 return; 981 982 compare = cd9660_compare_filename(cn_new->isoDirRecord->name, 983 cn->isoDirRecord->name); 984 985 if (compare == 0) 986 compare = cd9660_compare_filename(cn_new->node->name, 987 cn->node->name); 988 989 if (compare < 0) 990 break; 991 } 992 if (cn == NULL) 993 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child); 994 else 995 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child); 996 } 997 998 /* 999 * Called After cd9660_sorted_child_insert 1000 * handles file collisions by suffixing each filname with ~n 1001 * where n represents the files respective place in the ordering 1002 */ 1003 static int 1004 cd9660_handle_collisions(cd9660node *colliding, int past) 1005 { 1006 cd9660node *iter, *next, *prev; 1007 int skip; 1008 int delete_chars = 0; 1009 int temp_past = past; 1010 int temp_skip; 1011 int flag = 0; 1012 cd9660node *end_of_range; 1013 1014 for (iter = TAILQ_FIRST(&colliding->cn_children); 1015 iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) { 1016 if (strcmp(iter->isoDirRecord->name, 1017 next->isoDirRecord->name) != 0) { 1018 iter = TAILQ_NEXT(iter, cn_next_child); 1019 continue; 1020 } 1021 flag = 1; 1022 temp_skip = skip = cd9660_count_collisions(iter); 1023 end_of_range = iter; 1024 while (temp_skip > 0) { 1025 temp_skip--; 1026 end_of_range = TAILQ_NEXT(end_of_range, cn_next_child); 1027 } 1028 temp_past = past; 1029 while (temp_past > 0) { 1030 if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL) 1031 end_of_range = next; 1032 else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL) 1033 iter = prev; 1034 else 1035 delete_chars++; 1036 temp_past--; 1037 } 1038 skip += past; 1039 iter = cd9660_rename_filename(iter, skip, delete_chars); 1040 } 1041 return flag; 1042 } 1043 1044 1045 static cd9660node * 1046 cd9660_rename_filename(cd9660node *iter, int num, int delete_chars) 1047 { 1048 int i = 0; 1049 int numbts, dot, semi, digit, digits, temp, powers, multiplier, count; 1050 char *naming; 1051 int maxlength; 1052 char *tmp; 1053 1054 if (diskStructure.verbose_level > 0) 1055 printf("Rename_filename called\n"); 1056 1057 /* TODO : A LOT of chanes regarding 8.3 filenames */ 1058 if (diskStructure.isoLevel == 1) 1059 maxlength = 8; 1060 else if (diskStructure.isoLevel == 2) 1061 maxlength = 31; 1062 else 1063 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION; 1064 1065 tmp = malloc(ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1066 1067 while (i < num) { 1068 powers = 1; 1069 count = 0; 1070 digits = 1; 1071 multiplier = 1; 1072 while (((int)(i / powers) ) >= 10) { 1073 digits++; 1074 powers = powers * 10; 1075 } 1076 1077 naming = iter->o_name; 1078 1079 /* 1080 while ((*naming != '.') && (*naming != ';')) { 1081 naming++; 1082 count++; 1083 } 1084 */ 1085 1086 dot = -1; 1087 semi = -1; 1088 while (count < maxlength) { 1089 if (*naming == '.') 1090 dot = count; 1091 else if (*naming == ';') { 1092 semi = count; 1093 break; 1094 } 1095 naming++; 1096 count++; 1097 } 1098 1099 if ((count + digits) < maxlength) 1100 numbts = count; 1101 else 1102 numbts = maxlength - (digits); 1103 numbts -= delete_chars; 1104 1105 /* 8.3 rules - keep the extension, add before the dot */ 1106 1107 /* 1108 * This code makes a bunch of assumptions. 1109 * See if you can spot them all :) 1110 */ 1111 1112 /* 1113 if (diskStructure.isoLevel == 1) { 1114 numbts = 8 - digits - delete_chars; 1115 if (dot < 0) { 1116 1117 } else { 1118 if (dot < 8) { 1119 memmove(&tmp[numbts],&tmp[dot],4); 1120 } 1121 } 1122 } 1123 */ 1124 1125 /* (copying just the filename before the '.' */ 1126 memcpy(tmp, (iter->o_name), numbts); 1127 1128 /* adding the appropriate number following the name */ 1129 temp = i; 1130 while (digits > 0) { 1131 digit = (int)(temp / powers); 1132 temp = temp - digit * powers; 1133 sprintf(&tmp[numbts] , "%d", digit); 1134 digits--; 1135 numbts++; 1136 powers = powers / 10; 1137 } 1138 1139 while ((*naming != ';') && (numbts < maxlength)) { 1140 tmp[numbts] = (*naming); 1141 naming++; 1142 numbts++; 1143 } 1144 1145 tmp[numbts] = ';'; 1146 tmp[numbts+1] = '1'; 1147 tmp[numbts+2] = '\0'; 1148 1149 /* 1150 * now tmp has exactly the identifier 1151 * we want so we'll copy it back to record 1152 */ 1153 memcpy((iter->isoDirRecord->name), tmp, numbts + 3); 1154 1155 iter = TAILQ_NEXT(iter, cn_next_child); 1156 i++; 1157 } 1158 1159 free(tmp); 1160 return iter; 1161 } 1162 1163 /* Todo: Figure out why these functions are nec. */ 1164 static void 1165 cd9660_copy_filenames(cd9660node *node) 1166 { 1167 cd9660node *cn; 1168 1169 if (TAILQ_EMPTY(&node->cn_children)) 1170 return; 1171 1172 if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) { 1173 debug_print_tree(diskStructure.rootNode, 0); 1174 exit(1); 1175 } 1176 1177 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1178 cd9660_copy_filenames(cn); 1179 memcpy(cn->o_name, cn->isoDirRecord->name, 1180 ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1181 } 1182 } 1183 1184 static void 1185 cd9660_sorting_nodes(cd9660node *node) 1186 { 1187 cd9660node *cn; 1188 1189 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) 1190 cd9660_sorting_nodes(cn); 1191 cd9660_sort_nodes(node); 1192 } 1193 1194 /* XXX Bubble sort. */ 1195 static void 1196 cd9660_sort_nodes(cd9660node *node) 1197 { 1198 cd9660node *cn, *next; 1199 1200 do { 1201 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1202 if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL) 1203 return; 1204 else if (strcmp(next->isoDirRecord->name, 1205 cn->isoDirRecord->name) >= 0) 1206 continue; 1207 TAILQ_REMOVE(&node->cn_children, next, cn_next_child); 1208 TAILQ_INSERT_BEFORE(cn, next, cn_next_child); 1209 break; 1210 } 1211 } while (cn != NULL); 1212 } 1213 1214 static int 1215 cd9660_count_collisions(cd9660node *copy) 1216 { 1217 int count = 0; 1218 cd9660node *iter, *next; 1219 1220 for (iter = copy; 1221 (next = TAILQ_NEXT(iter, cn_next_child)) != NULL; 1222 iter = next) { 1223 if (cd9660_compare_filename(iter->isoDirRecord->name, 1224 next->isoDirRecord->name) == 0) 1225 count++; 1226 else 1227 return count; 1228 } 1229 #if 0 1230 if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) { 1231 printf("cd9660_recurse_on_collision: count is %i \n", count); 1232 compare = cd9660_compare_filename(iter->isoDirRecord->name, 1233 next->isoDirRecord->name); 1234 if (compare == 0) { 1235 count++; 1236 return cd9660_recurse_on_collision(next, count); 1237 } else 1238 return count; 1239 } 1240 #endif 1241 return count; 1242 } 1243 1244 static cd9660node * 1245 cd9660_rrip_move_directory(cd9660node *dir) 1246 { 1247 char newname[9]; 1248 cd9660node *tfile; 1249 1250 /* 1251 * This function needs to: 1252 * 1) Create an empty virtual file in place of the old directory 1253 * 2) Point the virtual file to the new directory 1254 * 3) Point the relocated directory to its old parent 1255 * 4) Move the directory specified by dir into rr_moved_dir, 1256 * and rename it to "diskStructure.rock_ridge_move_count" (as a string) 1257 */ 1258 1259 /* First see if the moved directory even exists */ 1260 if (diskStructure.rr_moved_dir == NULL) { 1261 diskStructure.rr_moved_dir = 1262 cd9660_create_directory(ISO_RRIP_DEFAULT_MOVE_DIR_NAME, 1263 diskStructure.rootNode, dir); 1264 if (diskStructure.rr_moved_dir == NULL) 1265 return 0; 1266 } 1267 1268 /* Create a file with the same ORIGINAL name */ 1269 tfile = cd9660_create_file(dir->node->name, dir->parent, dir); 1270 if (tfile == NULL) 1271 return NULL; 1272 1273 diskStructure.rock_ridge_move_count++; 1274 snprintf(newname, sizeof(newname), "%08i", 1275 diskStructure.rock_ridge_move_count); 1276 1277 /* Point to old parent */ 1278 dir->rr_real_parent = dir->parent; 1279 1280 /* Place the placeholder file */ 1281 if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) { 1282 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile, 1283 cn_next_child); 1284 } else { 1285 cd9660_sorted_child_insert(dir->rr_real_parent, tfile); 1286 } 1287 1288 /* Point to new parent */ 1289 dir->parent = diskStructure.rr_moved_dir; 1290 1291 /* Point the file to the moved directory */ 1292 tfile->rr_relocated = dir; 1293 1294 /* Actually move the directory */ 1295 cd9660_sorted_child_insert(diskStructure.rr_moved_dir, dir); 1296 1297 /* TODO: Inherit permissions / ownership (basically the entire inode) */ 1298 1299 /* Set the new name */ 1300 memset(dir->isoDirRecord->name, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1301 strncpy(dir->isoDirRecord->name, newname, 8); 1302 1303 return dir; 1304 } 1305 1306 static int 1307 cd9660_add_dot_records(cd9660node *root) 1308 { 1309 struct cd9660_children_head *head = &root->cn_children; 1310 cd9660node *cn; 1311 1312 TAILQ_FOREACH(cn, head, cn_next_child) { 1313 if ((cn->type & CD9660_TYPE_DIR) == 0) 1314 continue; 1315 /* Recursion first */ 1316 cd9660_add_dot_records(cn); 1317 } 1318 cd9660_create_special_directory(CD9660_TYPE_DOT, root); 1319 cd9660_create_special_directory(CD9660_TYPE_DOTDOT, root); 1320 return 1; 1321 } 1322 1323 /* 1324 * Convert node to cd9660 structure 1325 * This function is designed to be called recursively on the root node of 1326 * the filesystem 1327 * Lots of recursion going on here, want to make sure it is efficient 1328 * @param struct fsnode * The root node to be converted 1329 * @param struct cd9660* The parent node (should not be NULL) 1330 * @param int Current directory depth 1331 * @param int* Running count of the number of directories that are being created 1332 */ 1333 static void 1334 cd9660_convert_structure(fsnode *root, cd9660node *parent_node, int level, 1335 int *numDirectories, int *error) 1336 { 1337 fsnode *iterator = root; 1338 cd9660node *this_node; 1339 int working_level; 1340 int add; 1341 int flag = 0; 1342 int counter = 0; 1343 1344 /* 1345 * Newer, more efficient method, reduces recursion depth 1346 */ 1347 if (root == NULL) { 1348 warnx("%s: root is null\n", __func__); 1349 return; 1350 } 1351 1352 /* Test for an empty directory - makefs still gives us the . record */ 1353 if ((S_ISDIR(root->type)) && (root->name[0] == '.') 1354 && (root->name[1] == '\0')) { 1355 root = root->next; 1356 if (root == NULL) 1357 return; 1358 } 1359 if ((this_node = cd9660_allocate_cd9660node()) == NULL) { 1360 CD9660_MEM_ALLOC_ERROR(__func__); 1361 } 1362 1363 /* 1364 * To reduce the number of recursive calls, we will iterate over 1365 * the next pointers to the right. 1366 */ 1367 while (iterator != NULL) { 1368 add = 1; 1369 /* 1370 * Increment the directory count if this is a directory 1371 * Ignore "." entries. We will generate them later 1372 */ 1373 if (!S_ISDIR(iterator->type) || 1374 strcmp(iterator->name, ".") != 0) { 1375 1376 /* Translate the node, including its filename */ 1377 this_node->parent = parent_node; 1378 cd9660_translate_node(iterator, this_node); 1379 this_node->level = level; 1380 1381 if (S_ISDIR(iterator->type)) { 1382 (*numDirectories)++; 1383 this_node->type = CD9660_TYPE_DIR; 1384 working_level = level + 1; 1385 1386 /* 1387 * If at level 8, directory would be at 8 1388 * and have children at 9 which is not 1389 * allowed as per ISO spec 1390 */ 1391 if (level == 8) { 1392 if ((!diskStructure.allow_deep_trees) && 1393 (!diskStructure.rock_ridge_enabled)) { 1394 warnx("error: found entry " 1395 "with depth greater " 1396 "than 8."); 1397 (*error) = 1; 1398 return; 1399 } else if (diskStructure. 1400 rock_ridge_enabled) { 1401 working_level = 3; 1402 /* 1403 * Moved directory is actually 1404 * at level 2. 1405 */ 1406 this_node->level = 1407 working_level - 1; 1408 if (cd9660_rrip_move_directory( 1409 this_node) == 0) { 1410 warnx("Failure in " 1411 "cd9660_rrip_" 1412 "move_directory" 1413 ); 1414 (*error) = 1; 1415 return; 1416 } 1417 add = 0; 1418 } 1419 } 1420 1421 /* Do the recursive call on the children */ 1422 if (iterator->child != 0) { 1423 cd9660_convert_structure( 1424 iterator->child, this_node, 1425 working_level, 1426 numDirectories, error); 1427 1428 if ((*error) == 1) { 1429 warnx("%s: Error on recursive " 1430 "call", __func__); 1431 return; 1432 } 1433 } 1434 1435 } else { 1436 /* Only directories should have children */ 1437 assert(iterator->child == NULL); 1438 1439 this_node->type = CD9660_TYPE_FILE; 1440 } 1441 1442 /* 1443 * Finally, do a sorted insert 1444 */ 1445 if (add) { 1446 cd9660_sorted_child_insert( 1447 parent_node, this_node); 1448 } 1449 1450 /*Allocate new temp_node */ 1451 if (iterator->next != 0) { 1452 this_node = cd9660_allocate_cd9660node(); 1453 if (this_node == NULL) 1454 CD9660_MEM_ALLOC_ERROR(__func__); 1455 } 1456 } 1457 iterator = iterator->next; 1458 } 1459 1460 /* cd9660_handle_collisions(first_node); */ 1461 1462 /* TODO: need cleanup */ 1463 cd9660_copy_filenames(parent_node); 1464 1465 do { 1466 flag = cd9660_handle_collisions(parent_node, counter); 1467 counter++; 1468 cd9660_sorting_nodes(parent_node); 1469 } while ((flag == 1) && (counter < 100)); 1470 } 1471 1472 /* 1473 * Clean up the cd9660node tree 1474 * This is designed to be called recursively on the root node 1475 * @param struct cd9660node *root The node to free 1476 * @returns void 1477 */ 1478 static void 1479 cd9660_free_structure(cd9660node *root) 1480 { 1481 cd9660node *cn; 1482 1483 while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) { 1484 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child); 1485 cd9660_free_structure(cn); 1486 } 1487 free(root); 1488 } 1489 1490 /* 1491 * Be a little more memory conservative: 1492 * instead of having the TAILQ_ENTRY as part of the cd9660node, 1493 * just create a temporary structure 1494 */ 1495 struct ptq_entry 1496 { 1497 TAILQ_ENTRY(ptq_entry) ptq; 1498 cd9660node *node; 1499 } *n; 1500 1501 #define PTQUEUE_NEW(n,s,r,t){\ 1502 n = malloc(sizeof(struct s)); \ 1503 if (n == NULL) \ 1504 return r; \ 1505 n->node = t;\ 1506 } 1507 1508 /* 1509 * Generate the path tables 1510 * The specific implementation of this function is left as an exercise to the 1511 * programmer. It could be done recursively. Make sure you read how the path 1512 * table has to be laid out, it has levels. 1513 * @param struct iso9660_disk *disk The disk image 1514 * @returns int The number of built path tables (between 1 and 4), 0 on failure 1515 */ 1516 static int 1517 cd9660_generate_path_table(void) 1518 { 1519 cd9660node *cn, *dirNode = diskStructure.rootNode; 1520 cd9660node *last = dirNode; 1521 int pathTableSize = 0; /* computed as we go */ 1522 int counter = 1; /* root gets a count of 0 */ 1523 int parentRecNum = 0; /* root's parent is '0' */ 1524 1525 TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head; 1526 TAILQ_INIT(&pt_head); 1527 1528 PTQUEUE_NEW(n, ptq_entry, -1, diskStructure.rootNode); 1529 1530 /* Push the root node */ 1531 TAILQ_INSERT_HEAD(&pt_head, n, ptq); 1532 1533 /* Breadth-first traversal of file structure */ 1534 while (pt_head.tqh_first != 0) { 1535 n = pt_head.tqh_first; 1536 dirNode = n->node; 1537 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq); 1538 free(n); 1539 1540 /* Update the size */ 1541 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE 1542 + dirNode->isoDirRecord->name_len[0]+ 1543 (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1); 1544 /* includes the padding bit */ 1545 1546 dirNode->ptnumber=counter; 1547 if (dirNode != last) { 1548 last->ptnext = dirNode; 1549 dirNode->ptprev = last; 1550 } 1551 last = dirNode; 1552 1553 parentRecNum = 1; 1554 if (dirNode->parent != 0) 1555 parentRecNum = dirNode->parent->ptnumber; 1556 1557 /* Push children onto queue */ 1558 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) { 1559 /* 1560 * Dont add the DOT and DOTDOT types to the path 1561 * table. 1562 */ 1563 if ((cn->type != CD9660_TYPE_DOT) 1564 && (cn->type != CD9660_TYPE_DOTDOT)) { 1565 1566 if (S_ISDIR(cn->node->type)) { 1567 PTQUEUE_NEW(n, ptq_entry, -1, cn); 1568 TAILQ_INSERT_TAIL(&pt_head, n, ptq); 1569 } 1570 } 1571 } 1572 counter++; 1573 } 1574 return pathTableSize; 1575 } 1576 1577 void 1578 cd9660_compute_full_filename(cd9660node *node, char *buf, int level) 1579 { 1580 cd9660node *parent; 1581 1582 parent = (node->rr_real_parent == NULL ? 1583 node->parent : node->rr_real_parent); 1584 if (parent != NULL) { 1585 cd9660_compute_full_filename(parent, buf, level + 1); 1586 strcat(buf, node->node->name); 1587 } else { 1588 /* We are at the root */ 1589 strcat(buf, diskStructure.rootFilesystemPath); 1590 if (buf[strlen(buf) - 1] == '/') 1591 buf[strlen(buf) - 1] = '\0'; 1592 } 1593 1594 if (level != 0) 1595 strcat(buf, "/"); 1596 } 1597 1598 /* NEW filename conversion method */ 1599 typedef int(*cd9660_filename_conversion_functor)(const char *, char *, int); 1600 1601 1602 /* 1603 * TODO: These two functions are almost identical. 1604 * Some code cleanup is possible here 1605 * 1606 * XXX bounds checking! 1607 */ 1608 static int 1609 cd9660_level1_convert_filename(const char *oldname, char *newname, int is_file) 1610 { 1611 /* 1612 * ISO 9660 : 10.1 1613 * File Name shall not contain more than 8 d or d1 characters 1614 * File Name Extension shall not contain more than 3 d or d1 characters 1615 * Directory Identifier shall not contain more than 8 d or d1 characters 1616 */ 1617 int namelen = 0; 1618 int extlen = 0; 1619 int found_ext = 0; 1620 1621 while (*oldname != '\0') { 1622 /* Handle period first, as it is special */ 1623 if (*oldname == '.') { 1624 if (found_ext) { 1625 *newname++ = '_'; 1626 extlen ++; 1627 } 1628 else { 1629 *newname++ = '.'; 1630 found_ext = 1; 1631 } 1632 } else { 1633 /* Enforce 12.3 / 8 */ 1634 if (((namelen == 8) && !found_ext) || 1635 (found_ext && extlen == 3)) { 1636 break; 1637 } 1638 1639 if (islower((unsigned char)*oldname)) 1640 *newname++ = toupper((unsigned char)*oldname); 1641 else if (isupper((unsigned char)*oldname) 1642 || isdigit((unsigned char)*oldname)) 1643 *newname++ = *oldname; 1644 else 1645 *newname++ = '_'; 1646 1647 if (found_ext) 1648 extlen++; 1649 else 1650 namelen++; 1651 } 1652 oldname ++; 1653 } 1654 if (is_file) { 1655 if (!found_ext && !diskStructure.omit_trailing_period) 1656 *newname++ = '.'; 1657 /* Add version */ 1658 sprintf(newname, ";%i", 1); 1659 } 1660 return namelen + extlen + found_ext; 1661 } 1662 1663 /* XXX bounds checking! */ 1664 static int 1665 cd9660_level2_convert_filename(const char *oldname, char *newname, int is_file) 1666 { 1667 /* 1668 * ISO 9660 : 7.5.1 1669 * File name : 0+ d or d1 characters 1670 * separator 1 (.) 1671 * File name extension : 0+ d or d1 characters 1672 * separator 2 (;) 1673 * File version number (5 characters, 1-32767) 1674 * 1 <= Sum of File name and File name extension <= 30 1675 */ 1676 int namelen = 0; 1677 int extlen = 0; 1678 int found_ext = 0; 1679 1680 while (*oldname != '\0') { 1681 /* Handle period first, as it is special */ 1682 if (*oldname == '.') { 1683 if (found_ext) { 1684 if (diskStructure.allow_multidot) { 1685 *newname++ = '.'; 1686 } else { 1687 *newname++ = '_'; 1688 } 1689 extlen ++; 1690 } 1691 else { 1692 *newname++ = '.'; 1693 found_ext = 1; 1694 } 1695 } else { 1696 if ((namelen + extlen) == 30) 1697 break; 1698 1699 if (islower((unsigned char)*oldname)) 1700 *newname++ = toupper((unsigned char)*oldname); 1701 else if (isupper((unsigned char)*oldname) || 1702 isdigit((unsigned char)*oldname)) 1703 *newname++ = *oldname; 1704 else if (diskStructure.allow_multidot && 1705 *oldname == '.') { 1706 *newname++ = '.'; 1707 } else { 1708 *newname++ = '_'; 1709 } 1710 1711 if (found_ext) 1712 extlen++; 1713 else 1714 namelen++; 1715 } 1716 oldname ++; 1717 } 1718 if (is_file) { 1719 if (!found_ext && !diskStructure.omit_trailing_period) 1720 *newname++ = '.'; 1721 /* Add version */ 1722 sprintf(newname, ";%i", 1); 1723 } 1724 return namelen + extlen + found_ext; 1725 } 1726 1727 #if 0 1728 static int 1729 cd9660_joliet_convert_filename(const char *oldname, char *newname, int is_file) 1730 { 1731 /* TODO: implement later, move to cd9660_joliet.c ?? */ 1732 } 1733 #endif 1734 1735 1736 /* 1737 * Convert a file name to ISO compliant file name 1738 * @param char * oldname The original filename 1739 * @param char ** newname The new file name, in the appropriate character 1740 * set and of appropriate length 1741 * @param int 1 if file, 0 if directory 1742 * @returns int The length of the new string 1743 */ 1744 static int 1745 cd9660_convert_filename(const char *oldname, char *newname, int is_file) 1746 { 1747 /* NEW */ 1748 cd9660_filename_conversion_functor conversion_function = 0; 1749 if (diskStructure.isoLevel == 1) 1750 conversion_function = &cd9660_level1_convert_filename; 1751 else if (diskStructure.isoLevel == 2) 1752 conversion_function = &cd9660_level2_convert_filename; 1753 return (*conversion_function)(oldname, newname, is_file); 1754 } 1755 1756 int 1757 cd9660_compute_record_size(cd9660node *node) 1758 { 1759 int size = node->isoDirRecord->length[0]; 1760 1761 if (diskStructure.rock_ridge_enabled) 1762 size += node->susp_entry_size; 1763 size += node->su_tail_size; 1764 size += size & 1; /* Ensure length of record is even. */ 1765 assert(size <= 254); 1766 return size; 1767 } 1768 1769 static void 1770 cd9660_populate_dot_records(cd9660node *node) 1771 { 1772 node->dot_record->fileDataSector = node->fileDataSector; 1773 memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34); 1774 node->dot_record->isoDirRecord->name_len[0] = 1; 1775 node->dot_record->isoDirRecord->name[0] = 0; 1776 node->dot_record->isoDirRecord->name[1] = 0; 1777 node->dot_record->isoDirRecord->length[0] = 34; 1778 node->dot_record->fileRecordSize = 1779 cd9660_compute_record_size(node->dot_record); 1780 1781 if (node == diskStructure.rootNode) { 1782 node->dot_dot_record->fileDataSector = node->fileDataSector; 1783 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord, 1784 34); 1785 } else { 1786 node->dot_dot_record->fileDataSector = 1787 node->parent->fileDataSector; 1788 memcpy(node->dot_dot_record->isoDirRecord, 1789 node->parent->isoDirRecord,34); 1790 } 1791 node->dot_dot_record->isoDirRecord->name_len[0] = 1; 1792 node->dot_dot_record->isoDirRecord->name[0] = 1; 1793 node->dot_dot_record->isoDirRecord->name[1] = 0; 1794 node->dot_dot_record->isoDirRecord->length[0] = 34; 1795 node->dot_dot_record->fileRecordSize = 1796 cd9660_compute_record_size(node->dot_dot_record); 1797 } 1798 1799 /* 1800 * @param struct cd9660node *node The node 1801 * @param int The offset (in bytes) - SHOULD align to the beginning of a sector 1802 * @returns int The total size of files and directory entries (should be 1803 * a multiple of sector size) 1804 */ 1805 static int 1806 cd9660_compute_offsets(cd9660node *node, int startOffset) 1807 { 1808 /* 1809 * This function needs to compute the size of directory records and 1810 * runs, file lengths, and set the appropriate variables both in 1811 * cd9660node and isoDirEntry 1812 */ 1813 int used_bytes = 0; 1814 int current_sector_usage = 0; 1815 cd9660node *child; 1816 fsinode *inode; 1817 int r; 1818 1819 assert(node != NULL); 1820 1821 1822 /* 1823 * NOTE : There needs to be some special case detection for 1824 * the "real root" node, since for it, node->node is undefined 1825 */ 1826 1827 node->fileDataSector = -1; 1828 1829 if (node->type & CD9660_TYPE_DIR) { 1830 node->fileRecordSize = cd9660_compute_record_size(node); 1831 /*Set what sector this directory starts in*/ 1832 node->fileDataSector = 1833 CD9660_BLOCKS(diskStructure.sectorSize,startOffset); 1834 1835 cd9660_bothendian_dword(node->fileDataSector, 1836 node->isoDirRecord->extent); 1837 1838 /* 1839 * First loop over children, need to know the size of 1840 * their directory records 1841 */ 1842 node->fileSectorsUsed = 1; 1843 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) { 1844 node->fileDataLength += 1845 cd9660_compute_record_size(child); 1846 if ((cd9660_compute_record_size(child) + 1847 current_sector_usage) >= 1848 diskStructure.sectorSize) { 1849 current_sector_usage = 0; 1850 node->fileSectorsUsed++; 1851 } 1852 1853 current_sector_usage += 1854 cd9660_compute_record_size(child); 1855 } 1856 1857 cd9660_bothendian_dword(node->fileSectorsUsed * 1858 diskStructure.sectorSize,node->isoDirRecord->size); 1859 1860 /* 1861 * This should point to the sector after the directory 1862 * record (or, the first byte in that sector) 1863 */ 1864 used_bytes += node->fileSectorsUsed * diskStructure.sectorSize; 1865 1866 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1867 child != NULL; child = TAILQ_NEXT(child, cn_next_child)) { 1868 /* Directories need recursive call */ 1869 if (S_ISDIR(child->node->type)) { 1870 r = cd9660_compute_offsets(child, 1871 used_bytes + startOffset); 1872 1873 if (r != -1) 1874 used_bytes += r; 1875 else 1876 return -1; 1877 } 1878 } 1879 1880 /* Explicitly set the . and .. records */ 1881 cd9660_populate_dot_records(node); 1882 1883 /* Finally, do another iteration to write the file data*/ 1884 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1885 child != NULL; 1886 child = TAILQ_NEXT(child, cn_next_child)) { 1887 /* Files need extent set */ 1888 if (S_ISDIR(child->node->type)) 1889 continue; 1890 child->fileRecordSize = 1891 cd9660_compute_record_size(child); 1892 1893 child->fileSectorsUsed = 1894 CD9660_BLOCKS(diskStructure.sectorSize, 1895 child->fileDataLength); 1896 1897 inode = child->node->inode; 1898 if ((inode->flags & FI_ALLOCATED) == 0) { 1899 inode->ino = 1900 CD9660_BLOCKS(diskStructure.sectorSize, 1901 used_bytes + startOffset); 1902 inode->flags |= FI_ALLOCATED; 1903 used_bytes += child->fileSectorsUsed * 1904 diskStructure.sectorSize; 1905 } else { 1906 INODE_WARNX(("%s: already allocated inode %d " 1907 "data sectors at %" PRIu32, __func__, 1908 (int)inode->st.st_ino, inode->ino)); 1909 } 1910 child->fileDataSector = inode->ino; 1911 cd9660_bothendian_dword(child->fileDataSector, 1912 child->isoDirRecord->extent); 1913 } 1914 } 1915 1916 return used_bytes; 1917 } 1918 1919 #if 0 1920 /* Might get rid of this func */ 1921 static int 1922 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file) 1923 { 1924 to->node->inode->st.st_dev = 0; 1925 to->node->inode->st.st_ino = 0; 1926 to->node->inode->st.st_size = 0; 1927 to->node->inode->st.st_blksize = from->node->inode->st.st_blksize; 1928 to->node->inode->st.st_atime = from->node->inode->st.st_atime; 1929 to->node->inode->st.st_mtime = from->node->inode->st.st_mtime; 1930 to->node->inode->st.st_ctime = from->node->inode->st.st_ctime; 1931 to->node->inode->st.st_uid = from->node->inode->st.st_uid; 1932 to->node->inode->st.st_gid = from->node->inode->st.st_gid; 1933 to->node->inode->st.st_mode = from->node->inode->st.st_mode; 1934 /* Clear out type */ 1935 to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT); 1936 if (file) 1937 to->node->inode->st.st_mode |= S_IFREG; 1938 else 1939 to->node->inode->st.st_mode |= S_IFDIR; 1940 return 1; 1941 } 1942 #endif 1943 1944 static cd9660node * 1945 cd9660_create_virtual_entry(const char *name, cd9660node *parent, int file, 1946 int insert) 1947 { 1948 cd9660node *temp; 1949 fsnode * tfsnode; 1950 1951 assert(parent != NULL); 1952 1953 temp = cd9660_allocate_cd9660node(); 1954 if (temp == NULL) 1955 return NULL; 1956 1957 if ((tfsnode = malloc(sizeof(fsnode))) == NULL) { 1958 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry"); 1959 return NULL; 1960 } 1961 1962 /* Assume for now name is a valid length */ 1963 if ((tfsnode->name = malloc(strlen(name) + 1)) == NULL) { 1964 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry"); 1965 return NULL; 1966 } 1967 1968 if ((temp->isoDirRecord = 1969 malloc(sizeof(iso_directory_record_cd9660))) == NULL) { 1970 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry"); 1971 return NULL; 1972 } 1973 1974 strcpy(tfsnode->name, name); 1975 1976 cd9660_convert_filename(tfsnode->name, temp->isoDirRecord->name, file); 1977 1978 temp->node = tfsnode; 1979 temp->parent = parent; 1980 1981 if (insert) { 1982 if (temp->parent != NULL) { 1983 temp->level = temp->parent->level + 1; 1984 if (!TAILQ_EMPTY(&temp->parent->cn_children)) 1985 cd9660_sorted_child_insert(temp->parent, temp); 1986 else 1987 TAILQ_INSERT_HEAD(&temp->parent->cn_children, 1988 temp, cn_next_child); 1989 } 1990 } 1991 1992 if (parent->node != NULL) { 1993 tfsnode->type = parent->node->type; 1994 } 1995 1996 /* Clear out file type bits */ 1997 tfsnode->type &= ~(S_IFMT); 1998 if (file) 1999 tfsnode->type |= S_IFREG; 2000 else 2001 tfsnode->type |= S_IFDIR; 2002 2003 /* Indicate that there is no spec entry (inode) */ 2004 tfsnode->flags &= ~(FSNODE_F_HASSPEC); 2005 #if 0 2006 cd9660_copy_stat_info(parent, temp, file); 2007 #endif 2008 return temp; 2009 } 2010 2011 static cd9660node * 2012 cd9660_create_file(const char * name, cd9660node *parent, cd9660node *me) 2013 { 2014 cd9660node *temp; 2015 2016 temp = cd9660_create_virtual_entry(name,parent,1,1); 2017 if (temp == NULL) 2018 return NULL; 2019 2020 temp->fileDataLength = 0; 2021 2022 temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL; 2023 2024 if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL) 2025 return NULL; 2026 *temp->node->inode = *me->node->inode; 2027 2028 if (cd9960_translate_node_common(temp) == 0) 2029 return NULL; 2030 return temp; 2031 } 2032 2033 /* 2034 * Create a new directory which does not exist on disk 2035 * @param const char * name The name to assign to the directory 2036 * @param const char * parent Pointer to the parent directory 2037 * @returns cd9660node * Pointer to the new directory 2038 */ 2039 static cd9660node * 2040 cd9660_create_directory(const char *name, cd9660node *parent, cd9660node *me) 2041 { 2042 cd9660node *temp; 2043 2044 temp = cd9660_create_virtual_entry(name,parent,0,1); 2045 if (temp == NULL) 2046 return NULL; 2047 temp->node->type |= S_IFDIR; 2048 2049 temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL; 2050 2051 if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL) 2052 return NULL; 2053 *temp->node->inode = *me->node->inode; 2054 2055 if (cd9960_translate_node_common(temp) == 0) 2056 return NULL; 2057 return temp; 2058 } 2059 2060 static cd9660node * 2061 cd9660_create_special_directory(u_char type, cd9660node *parent) 2062 { 2063 cd9660node *temp, *first; 2064 char na[2]; 2065 2066 assert(parent != NULL); 2067 2068 if (type == CD9660_TYPE_DOT) 2069 na[0] = 0; 2070 else if (type == CD9660_TYPE_DOTDOT) 2071 na[0] = 1; 2072 else 2073 return 0; 2074 2075 na[1] = 0; 2076 if ((temp = cd9660_create_virtual_entry(na, parent, 0, 0)) == NULL) 2077 return NULL; 2078 2079 temp->parent = parent; 2080 temp->type = type; 2081 temp->isoDirRecord->length[0] = 34; 2082 /* Dot record is always first */ 2083 if (type == CD9660_TYPE_DOT) { 2084 parent->dot_record = temp; 2085 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child); 2086 /* DotDot should be second */ 2087 } else if (type == CD9660_TYPE_DOTDOT) { 2088 parent->dot_dot_record = temp; 2089 /* 2090 * If the first child is the dot record, insert 2091 * this second. Otherwise, insert it at the head. 2092 */ 2093 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL || 2094 (first->type & CD9660_TYPE_DOT) == 0) { 2095 TAILQ_INSERT_HEAD(&parent->cn_children, temp, 2096 cn_next_child); 2097 } else { 2098 TAILQ_INSERT_AFTER(&parent->cn_children, first, temp, 2099 cn_next_child); 2100 } 2101 } 2102 2103 return temp; 2104 } 2105 2106 int 2107 cd9660_add_generic_bootimage(const char *bootimage) 2108 { 2109 struct stat stbuf; 2110 2111 assert(bootimage != NULL); 2112 2113 if (*bootimage == '\0') { 2114 warnx("Error: Boot image must be a filename"); 2115 return 0; 2116 } 2117 2118 if ((diskStructure.generic_bootimage = strdup(bootimage)) == NULL) { 2119 warn("%s: strdup", __func__); 2120 return 0; 2121 } 2122 2123 /* Get information about the file */ 2124 if (lstat(diskStructure.generic_bootimage, &stbuf) == -1) 2125 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__, 2126 diskStructure.generic_bootimage); 2127 2128 if (stbuf.st_size > 32768) { 2129 warnx("Error: Boot image must be no greater than 32768 bytes"); 2130 return 0; 2131 } 2132 2133 if (diskStructure.verbose_level > 0) { 2134 printf("Generic boot image image has size %lld\n", 2135 (long long)stbuf.st_size); 2136 } 2137 2138 diskStructure.has_generic_bootimage = 1; 2139 2140 return 1; 2141 } 2142
Indexes created Wed Oct 22 13:09:56 GMT 2025