cd9660.c revision 1.24
1 /* $NetBSD: cd9660.c,v 1.24 2009/01/08 22:26:19 bjh21 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 1.24 2009/01/08 22:26:19 bjh21 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 return temp; 191 } 192 193 int cd9660_defaults_set = 0; 194 195 /** 196 * Set default values for cd9660 extension to makefs 197 */ 198 static void 199 cd9660_set_defaults(void) 200 { 201 /*Fix the sector size for now, though the spec allows for other sizes*/ 202 diskStructure.sectorSize = 2048; 203 204 /* Set up defaults in our own structure */ 205 diskStructure.verbose_level = 0; 206 diskStructure.keep_bad_images = 0; 207 diskStructure.follow_sym_links = 0; 208 diskStructure.isoLevel = 2; 209 210 diskStructure.rock_ridge_enabled = 0; 211 diskStructure.rock_ridge_renamed_dir_name = 0; 212 diskStructure.rock_ridge_move_count = 0; 213 diskStructure.rr_moved_dir = 0; 214 215 diskStructure.include_padding_areas = 1; 216 217 /* Spec breaking functionality */ 218 diskStructure.allow_deep_trees = 219 diskStructure.allow_start_dot = 220 diskStructure.allow_max_name = 221 diskStructure.allow_illegal_chars = 222 diskStructure.allow_lowercase = 223 diskStructure.allow_multidot = 224 diskStructure.omit_trailing_period = 0; 225 226 /* Make sure the PVD is clear */ 227 memset(&diskStructure.primaryDescriptor, 0, 2048); 228 229 memset(diskStructure.primaryDescriptor.volume_set_id, 0x20,32); 230 memset(diskStructure.primaryDescriptor.publisher_id, 0x20,128); 231 memset(diskStructure.primaryDescriptor.preparer_id, 0x20,128); 232 memset(diskStructure.primaryDescriptor.application_id, 0x20,128); 233 memset(diskStructure.primaryDescriptor.copyright_file_id, 0x20,128); 234 memset(diskStructure.primaryDescriptor.abstract_file_id, 0x20,128); 235 memset(diskStructure.primaryDescriptor.bibliographic_file_id, 0x20,128); 236 237 strcpy(diskStructure.primaryDescriptor.system_id,"NetBSD"); 238 239 cd9660_defaults_set = 1; 240 241 /* Boot support: Initially disabled */ 242 diskStructure.has_generic_bootimage = 0; 243 diskStructure.generic_bootimage = NULL; 244 245 diskStructure.boot_image_directory = 0; 246 /*memset(diskStructure.boot_descriptor, 0, 2048);*/ 247 248 diskStructure.is_bootable = 0; 249 TAILQ_INIT(&diskStructure.boot_images); 250 LIST_INIT(&diskStructure.boot_entries); 251 } 252 253 void 254 cd9660_prep_opts(fsinfo_t *fsopts __unused) 255 { 256 cd9660_set_defaults(); 257 } 258 259 void 260 cd9660_cleanup_opts(fsinfo_t *fsopts __unused) 261 { 262 263 } 264 265 static int 266 cd9660_arguments_set_string(const char *val, const char *fieldtitle, int length, 267 char testmode, char * dest) 268 { 269 int len, test; 270 271 if (val == NULL) 272 warnx("error: The %s requires a string argument", fieldtitle); 273 else if ((len = strlen(val)) <= length) { 274 if (testmode == 'd') 275 test = cd9660_valid_d_chars(val); 276 else 277 test = cd9660_valid_a_chars(val); 278 if (test) { 279 memcpy(dest, val, len); 280 if (test == 2) 281 cd9660_uppercase_characters(dest, len); 282 return 1; 283 } else 284 warnx("error: The %s must be composed of " 285 "%c-characters", fieldtitle, testmode); 286 } else 287 warnx("error: The %s must be at most 32 characters long", 288 fieldtitle); 289 return 0; 290 } 291 292 /* 293 * Command-line parsing function 294 */ 295 296 int 297 cd9660_parse_opts(const char *option, fsinfo_t *fsopts) 298 { 299 char *var, *val; 300 int rv; 301 /* Set up allowed options - integer options ONLY */ 302 option_t cd9660_options[] = { 303 { "l", &diskStructure.isoLevel, 1, 3, "ISO Level" }, 304 { "isolevel", &diskStructure.isoLevel, 1, 3, "ISO Level" }, 305 { "verbose", &diskStructure.verbose_level, 0, 2, 306 "Turns on verbose output" }, 307 { "v", &diskStructure.verbose_level, 0 , 2, 308 "Turns on verbose output"}, 309 { .name = NULL } 310 }; 311 312 if (cd9660_defaults_set == 0) 313 cd9660_set_defaults(); 314 315 /* 316 * Todo : finish implementing this, and make a function that 317 * parses them 318 */ 319 /* 320 string_option_t cd9660_string_options[] = { 321 { "L", "Label", &diskStructure.primaryDescriptor.volume_id, 1, 32, "Disk Label", ISO_STRING_FILTER_DCHARS }, 322 { NULL } 323 } 324 */ 325 326 assert(option != NULL); 327 assert(fsopts != NULL); 328 329 if (debug & DEBUG_FS_PARSE_OPTS) 330 printf("cd9660_parse_opts: got `%s'\n", option); 331 332 if ((var = strdup(option)) == NULL) 333 err(1, "allocating memory for copy of option string"); 334 rv = 1; 335 336 val = strchr(var, '='); 337 if (val != NULL) 338 *val++ = '\0'; 339 340 /* First handle options with no parameters */ 341 if (strcmp(var, "h") == 0) { 342 diskStructure.displayHelp = 1; 343 rv = 1; 344 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "S", "follow-symlinks")) { 345 /* this is not handled yet */ 346 diskStructure.follow_sym_links = 1; 347 rv = 1; 348 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "L", "label")) { 349 rv = cd9660_arguments_set_string(val, "Disk Label", 32, 'd', 350 diskStructure.primaryDescriptor.volume_id); 351 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "A", "applicationid")) { 352 rv = cd9660_arguments_set_string(val, "Application Identifier", 128, 'a', 353 diskStructure.primaryDescriptor.application_id); 354 } else if(CD9660_IS_COMMAND_ARG_DUAL(var, "P", "publisher")) { 355 rv = cd9660_arguments_set_string(val, "Publisher Identifier", 356 128, 'a', diskStructure.primaryDescriptor.publisher_id); 357 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "p", "preparer")) { 358 rv = cd9660_arguments_set_string(val, "Preparer Identifier", 359 128, 'a', diskStructure.primaryDescriptor.preparer_id); 360 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "V", "volumeid")) { 361 rv = cd9660_arguments_set_string(val, "Volume Set Identifier", 362 128, 'a', diskStructure.primaryDescriptor.volume_set_id); 363 /* Boot options */ 364 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "B", "bootimage")) { 365 if (val == NULL) 366 warnx("error: The Boot Image parameter requires a valid boot information string"); 367 else 368 rv = cd9660_add_boot_disk(val); 369 } else if (CD9660_IS_COMMAND_ARG(var, "bootimagedir")) { 370 /* 371 * XXXfvdl this is unused. 372 */ 373 if (val == NULL) 374 errx(1, "error: The Boot Image Directory parameter" 375 " requires a directory name\n"); 376 else { 377 if ((diskStructure.boot_image_directory = 378 malloc(strlen(val) + 1)) == NULL) { 379 CD9660_MEM_ALLOC_ERROR("cd9660_parse_opts"); 380 exit(1); 381 } 382 383 /* BIG TODO: Add the max length function here */ 384 cd9660_arguments_set_string(val, "Boot Image Directory", 385 12 , 'd', diskStructure.boot_image_directory); 386 } 387 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "G", "generic-bootimage")) { 388 if (val == NULL) 389 warnx("error: The Boot Image parameter requires a valid boot information string"); 390 else 391 rv = cd9660_add_generic_bootimage(val); 392 } else if (CD9660_IS_COMMAND_ARG(var, "no-trailing-padding")) 393 diskStructure.include_padding_areas = 0; 394 /* RRIP */ 395 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "R", "rockridge")) 396 diskStructure.rock_ridge_enabled = 1; 397 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "K", "keep-bad-images")) 398 diskStructure.keep_bad_images = 1; 399 else if (CD9660_IS_COMMAND_ARG(var, "allow-deep-trees")) 400 diskStructure.allow_deep_trees = 1; 401 else if (CD9660_IS_COMMAND_ARG(var, "allow-max-name")) 402 diskStructure.allow_max_name = 1; 403 else if (CD9660_IS_COMMAND_ARG(var, "allow-illegal-chars")) 404 diskStructure.allow_illegal_chars = 1; 405 else if (CD9660_IS_COMMAND_ARG(var, "allow-lowercase")) 406 diskStructure.allow_lowercase = 1; 407 else if (CD9660_IS_COMMAND_ARG(var,"allow-multidot")) 408 diskStructure.allow_multidot = 1; 409 else if (CD9660_IS_COMMAND_ARG(var, "omit-trailing-period")) 410 diskStructure.omit_trailing_period = 1; 411 else if (CD9660_IS_COMMAND_ARG(var, "no-emul-boot") || 412 CD9660_IS_COMMAND_ARG(var, "no-boot") || 413 CD9660_IS_COMMAND_ARG(var, "hard-disk-boot")) { 414 cd9660_eltorito_add_boot_option(var, 0); 415 416 /* End of flag variables */ 417 } else if (CD9660_IS_COMMAND_ARG(var, "boot-load-segment")) { 418 if (val == NULL) { 419 warnx("Option `%s' doesn't contain a value", var); 420 rv = 0; 421 } else { 422 cd9660_eltorito_add_boot_option(var, val); 423 } 424 } else { 425 if (val == NULL) { 426 warnx("Option `%s' doesn't contain a value", var); 427 rv = 0; 428 } else 429 rv = set_option(cd9660_options, var, val); 430 } 431 432 if (var) 433 free(var); 434 return (rv); 435 } 436 437 /* 438 * Main function for cd9660_makefs 439 * Builds the ISO image file 440 * @param const char *image The image filename to create 441 * @param const char *dir The directory that is being read 442 * @param struct fsnode *root The root node of the filesystem tree 443 * @param struct fsinfo_t *fsopts Any options 444 */ 445 void 446 cd9660_makefs(const char *image, const char *dir, fsnode *root, 447 fsinfo_t *fsopts) 448 { 449 int startoffset; 450 int numDirectories; 451 int pathTableSectors; 452 int firstAvailableSector; 453 int totalSpace; 454 int error; 455 cd9660node *real_root; 456 457 if (diskStructure.verbose_level > 0) 458 printf("cd9660_makefs: ISO level is %i\n", 459 diskStructure.isoLevel); 460 if (diskStructure.isoLevel < 2 && 461 diskStructure.allow_multidot) 462 errx(1, "allow-multidot requires iso level of 2\n"); 463 464 assert(image != NULL); 465 assert(dir != NULL); 466 assert(root != NULL); 467 assert(fsopts != NULL); 468 469 if (diskStructure.displayHelp) { 470 /* 471 * Display help here - probably want to put it in 472 * a separate function 473 */ 474 return; 475 } 476 477 diskStructure.rootFilesystemPath = dir; 478 479 if (diskStructure.verbose_level > 0) 480 printf("cd9660_makefs: image %s directory %s root %p\n", 481 image, dir, root); 482 483 /* Set up some constants. Later, these will be defined with options */ 484 485 /* Counter needed for path tables */ 486 numDirectories = 0; 487 488 /* Convert tree to our own format */ 489 /* Actually, we now need to add the REAL root node, at level 0 */ 490 491 real_root = cd9660_allocate_cd9660node(); 492 if ((real_root->isoDirRecord = 493 malloc( sizeof(iso_directory_record_cd9660) )) == NULL) { 494 CD9660_MEM_ALLOC_ERROR("cd9660_makefs"); 495 exit(1); 496 } 497 498 /* Leave filename blank for root */ 499 memset(real_root->isoDirRecord->name, 0, 500 ISO_FILENAME_MAXLENGTH_WITH_PADDING); 501 502 real_root->level = 0; 503 diskStructure.rootNode = real_root; 504 real_root->type = CD9660_TYPE_DIR; 505 error = 0; 506 real_root->node = root; 507 cd9660_convert_structure(root, real_root, 1, &numDirectories, &error); 508 509 if (TAILQ_EMPTY(&real_root->cn_children)) { 510 errx(1, "cd9660_makefs: converted directory is empty. " 511 "Tree conversion failed\n"); 512 } else if (error != 0) { 513 errx(1, "cd9660_makefs: tree conversion failed\n"); 514 } else { 515 if (diskStructure.verbose_level > 0) 516 printf("cd9660_makefs: tree converted\n"); 517 } 518 519 /* Add the dot and dot dot records */ 520 cd9660_add_dot_records(real_root); 521 522 cd9660_setup_root_node(); 523 524 if (diskStructure.verbose_level > 0) 525 printf("cd9660_makefs: done converting tree\n"); 526 527 /* Rock ridge / SUSP init pass */ 528 if (diskStructure.rock_ridge_enabled) { 529 cd9660_susp_initialize(diskStructure.rootNode, 530 diskStructure.rootNode, NULL); 531 } 532 533 /* Build path table structure */ 534 diskStructure.pathTableLength = cd9660_generate_path_table(); 535 536 pathTableSectors = CD9660_BLOCKS(diskStructure.sectorSize, 537 diskStructure.pathTableLength); 538 539 firstAvailableSector = cd9660_setup_volume_descriptors(); 540 if (diskStructure.is_bootable) { 541 firstAvailableSector = cd9660_setup_boot(firstAvailableSector); 542 if (firstAvailableSector < 0) 543 errx(1, "setup_boot failed"); 544 } 545 /* LE first, then BE */ 546 diskStructure.primaryLittleEndianTableSector = firstAvailableSector; 547 diskStructure.primaryBigEndianTableSector = 548 diskStructure.primaryLittleEndianTableSector + pathTableSectors; 549 550 /* Set the secondary ones to -1, not going to use them for now */ 551 diskStructure.secondaryBigEndianTableSector = -1; 552 diskStructure.secondaryLittleEndianTableSector = -1; 553 554 diskStructure.dataFirstSector = 555 diskStructure.primaryBigEndianTableSector + pathTableSectors; 556 if (diskStructure.verbose_level > 0) 557 printf("cd9660_makefs: Path table conversion complete. " 558 "Each table is %i bytes, or %i sectors.\n", 559 diskStructure.pathTableLength, pathTableSectors); 560 561 startoffset = diskStructure.sectorSize*diskStructure.dataFirstSector; 562 563 totalSpace = cd9660_compute_offsets(real_root, startoffset); 564 565 diskStructure.totalSectors = diskStructure.dataFirstSector + 566 CD9660_BLOCKS(diskStructure.sectorSize, totalSpace); 567 568 /* Disabled until pass 1 is done */ 569 if (diskStructure.rock_ridge_enabled) { 570 diskStructure.susp_continuation_area_start_sector = 571 diskStructure.totalSectors; 572 diskStructure.totalSectors += 573 CD9660_BLOCKS(diskStructure.sectorSize, 574 diskStructure.susp_continuation_area_size); 575 cd9660_susp_finalize(diskStructure.rootNode); 576 } 577 578 579 cd9660_finalize_PVD(); 580 581 /* Add padding sectors, just for testing purposes right now */ 582 /* diskStructure.totalSectors+=150; */ 583 584 /* Debugging output */ 585 if (diskStructure.verbose_level > 0) { 586 printf("cd9660_makefs: Sectors 0-15 reserved\n"); 587 printf("cd9660_makefs: Primary path tables starts in sector %i\n", 588 diskStructure.primaryLittleEndianTableSector); 589 printf("cd9660_makefs: File data starts in sector %i\n", 590 diskStructure.dataFirstSector); 591 printf("cd9660_makefs: Total sectors: %i\n",diskStructure.totalSectors); 592 } 593 594 /* 595 * Add padding sectors at the end 596 * TODO: Clean this up and separate padding 597 */ 598 if (diskStructure.include_padding_areas) 599 diskStructure.totalSectors += 150; 600 601 cd9660_write_image(image); 602 603 if (diskStructure.verbose_level > 1) { 604 debug_print_volume_descriptor_information(); 605 debug_print_tree(real_root,0); 606 debug_print_path_tree(real_root); 607 } 608 609 /* Clean up data structures */ 610 cd9660_free_structure(real_root); 611 612 if (diskStructure.verbose_level > 0) 613 printf("cd9660_makefs: done\n"); 614 } 615 616 /* Generic function pointer - implement later */ 617 typedef int (*cd9660node_func)(cd9660node *); 618 619 static void 620 cd9660_finalize_PVD(void) 621 { 622 time_t tim; 623 unsigned char *temp; 624 625 /* Copy the root directory record */ 626 temp = (unsigned char *) &diskStructure.primaryDescriptor; 627 628 /* root should be a fixed size of 34 bytes since it has no name */ 629 memcpy(diskStructure.primaryDescriptor.root_directory_record, 630 diskStructure.rootNode->dot_record->isoDirRecord, 34); 631 632 /* In RRIP, this might be longer than 34 */ 633 diskStructure.primaryDescriptor.root_directory_record[0] = 34; 634 635 /* Set up all the important numbers in the PVD */ 636 cd9660_bothendian_dword(diskStructure.totalSectors, 637 (unsigned char *)diskStructure.primaryDescriptor.volume_space_size); 638 cd9660_bothendian_word(1, 639 (unsigned char *)diskStructure.primaryDescriptor.volume_set_size); 640 cd9660_bothendian_word(1, 641 (unsigned char *) 642 diskStructure.primaryDescriptor.volume_sequence_number); 643 cd9660_bothendian_word(diskStructure.sectorSize, 644 (unsigned char *) 645 diskStructure.primaryDescriptor.logical_block_size); 646 cd9660_bothendian_dword(diskStructure.pathTableLength, 647 (unsigned char *)diskStructure.primaryDescriptor.path_table_size); 648 649 cd9660_731(diskStructure.primaryLittleEndianTableSector, 650 (u_char *)diskStructure.primaryDescriptor.type_l_path_table); 651 cd9660_732(diskStructure.primaryBigEndianTableSector, 652 (u_char *)diskStructure.primaryDescriptor.type_m_path_table); 653 654 diskStructure.primaryDescriptor.file_structure_version[0] = 1; 655 656 /* Pad all strings with spaces instead of nulls */ 657 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_id, 32); 658 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.system_id, 32); 659 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_set_id, 660 128); 661 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.publisher_id, 662 128); 663 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.preparer_id, 664 128); 665 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.application_id, 666 128); 667 cd9660_pad_string_spaces( 668 diskStructure.primaryDescriptor.copyright_file_id, 128); 669 cd9660_pad_string_spaces( 670 diskStructure.primaryDescriptor.abstract_file_id, 128); 671 cd9660_pad_string_spaces( 672 diskStructure.primaryDescriptor.bibliographic_file_id, 128); 673 674 /* Setup dates */ 675 time(&tim); 676 cd9660_time_8426( 677 (unsigned char *)diskStructure.primaryDescriptor.creation_date, 678 tim); 679 cd9660_time_8426( 680 (unsigned char *)diskStructure.primaryDescriptor.modification_date, 681 tim); 682 683 /* 684 cd9660_set_date(diskStructure.primaryDescriptor.expiration_date, now); 685 */ 686 687 memset(diskStructure.primaryDescriptor.expiration_date, '0' ,17); 688 cd9660_time_8426( 689 (unsigned char *)diskStructure.primaryDescriptor.effective_date, 690 tim); 691 } 692 693 static void 694 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record, 695 u_char ext_attr_length, u_char flags, 696 u_char name_len, const char * name) 697 { 698 record->ext_attr_length[0] = ext_attr_length; 699 record->flags[0] = ISO_FLAG_CLEAR | flags; 700 record->file_unit_size[0] = 0; 701 record->interleave[0] = 0; 702 cd9660_bothendian_word(1, record->volume_sequence_number); 703 record->name_len[0] = name_len; 704 memset(record->name, '\0', sizeof (record->name)); 705 memcpy(record->name, name, name_len); 706 record->length[0] = 33 + name_len; 707 708 /* Todo : better rounding */ 709 record->length[0] += (record->length[0] & 1) ? 1 : 0; 710 } 711 712 static void 713 cd9660_setup_root_node(void) 714 { 715 cd9660_populate_iso_dir_record(diskStructure.rootNode->isoDirRecord, 716 0, ISO_FLAG_DIRECTORY, 1, "\0"); 717 718 } 719 720 /*********** SUPPORT FUNCTIONS ***********/ 721 static int 722 cd9660_setup_volume_descriptors(void) 723 { 724 /* Boot volume descriptor should come second */ 725 int sector = 16; 726 /* For now, a fixed 2 : PVD and terminator */ 727 volume_descriptor *temp, *t; 728 729 /* Set up the PVD */ 730 if ((temp = malloc(sizeof(volume_descriptor))) == NULL) { 731 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors"); 732 exit(1); 733 } 734 735 temp->volumeDescriptorData = 736 (unsigned char *)&diskStructure.primaryDescriptor; 737 temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD; 738 temp->volumeDescriptorData[6] = 1; 739 temp->sector = sector; 740 memcpy(temp->volumeDescriptorData + 1, 741 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 742 diskStructure.firstVolumeDescriptor = temp; 743 744 sector++; 745 /* Set up boot support if enabled. BVD must reside in sector 17 */ 746 if (diskStructure.is_bootable) { 747 if ((t = malloc(sizeof(volume_descriptor))) == NULL) { 748 CD9660_MEM_ALLOC_ERROR( 749 "cd9660_setup_volume_descriptors"); 750 exit(1); 751 } 752 if ((t->volumeDescriptorData = malloc(2048)) == NULL) { 753 CD9660_MEM_ALLOC_ERROR( 754 "cd9660_setup_volume_descriptors"); 755 exit(1); 756 } 757 temp->next = t; 758 temp = t; 759 memset(t->volumeDescriptorData, 0, 2048); 760 t->sector = 17; 761 if (diskStructure.verbose_level > 0) 762 printf("Setting up boot volume descriptor\n"); 763 cd9660_setup_boot_volume_descriptor(t); 764 sector++; 765 } 766 767 /* Set up the terminator */ 768 if ((t = malloc(sizeof(volume_descriptor))) == NULL) { 769 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors"); 770 exit(1); 771 } 772 if ((t->volumeDescriptorData = malloc(2048)) == NULL) { 773 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors"); 774 exit(1); 775 } 776 777 temp->next = t; 778 memset(t->volumeDescriptorData, 0, 2048); 779 t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR; 780 t->next = 0; 781 t->volumeDescriptorData[6] = 1; 782 t->sector = sector; 783 memcpy(t->volumeDescriptorData + 1, 784 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 785 786 sector++; 787 return sector; 788 } 789 790 #if 0 791 /* 792 * Populate EAR at some point. Not required, but is used by NetBSD's 793 * cd9660 support 794 */ 795 static int 796 cd9660_fill_extended_attribute_record(cd9660node *node) 797 { 798 if ((node->isoExtAttributes = 799 malloc(sizeof(struct iso_extended_attributes))) == NULL) { 800 CD9660_MEM_ALLOC_ERROR("cd9660_fill_extended_attribute_record"); 801 exit(1); 802 }; 803 804 return 1; 805 } 806 #endif 807 808 static int 809 cd9960_translate_node_common(cd9660node *newnode) 810 { 811 time_t tim; 812 int test; 813 u_char flag; 814 char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING]; 815 816 /* Now populate the isoDirRecord structure */ 817 memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING); 818 819 test = cd9660_convert_filename(newnode->node->name, 820 temp, !(S_ISDIR(newnode->node->type))); 821 822 flag = ISO_FLAG_CLEAR; 823 if (S_ISDIR(newnode->node->type)) 824 flag |= ISO_FLAG_DIRECTORY; 825 826 cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0, 827 flag, strlen(temp), temp); 828 829 /* Set the various dates */ 830 831 /* If we want to use the current date and time */ 832 time(&tim); 833 834 cd9660_time_915(newnode->isoDirRecord->date, tim); 835 836 cd9660_bothendian_dword(newnode->fileDataLength, 837 newnode->isoDirRecord->size); 838 /* If the file is a link, we want to set the size to 0 */ 839 if (S_ISLNK(newnode->node->type)) 840 newnode->fileDataLength = 0; 841 842 return 1; 843 } 844 845 /* 846 * Translate fsnode to cd9960node 847 * Translate filenames and other metadata, including dates, sizes, 848 * permissions, etc 849 * @param struct fsnode * The node generated by makefs 850 * @param struct cd9660node * The intermediate node to be written to 851 * @returns int 0 on failure, 1 on success 852 */ 853 static int 854 cd9660_translate_node(fsnode *node, cd9660node *newnode) 855 { 856 if (node == NULL) { 857 if (diskStructure.verbose_level > 0) 858 printf("cd9660_translate_node: NULL node passed, " 859 "returning\n"); 860 return 0; 861 } 862 if ((newnode->isoDirRecord = 863 malloc(sizeof(iso_directory_record_cd9660))) == NULL) { 864 CD9660_MEM_ALLOC_ERROR("cd9660_translate_node"); 865 return 0; 866 } 867 868 /* Set the node pointer */ 869 newnode->node = node; 870 871 /* Set the size */ 872 if (!(S_ISDIR(node->type))) 873 newnode->fileDataLength = node->inode->st.st_size; 874 875 if (cd9960_translate_node_common(newnode) == 0) 876 return 0; 877 878 /* Finally, overwrite some of the values that are set by default */ 879 cd9660_time_915(newnode->isoDirRecord->date, node->inode->st.st_mtime); 880 881 return 1; 882 } 883 884 /* 885 * Compares two ISO filenames 886 * @param const char * The first file name 887 * @param const char * The second file name 888 * @returns : -1 if first is less than second, 0 if they are the same, 1 if 889 * the second is greater than the first 890 */ 891 static int 892 cd9660_compare_filename(const char *first, const char *second) 893 { 894 /* 895 * This can be made more optimal once it has been tested 896 * (the extra character, for example, is for testing) 897 */ 898 899 int p1 = 0; 900 int p2 = 0; 901 char c1, c2; 902 /* First, on the filename */ 903 904 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1 905 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) { 906 c1 = first[p1]; 907 c2 = second[p2]; 908 if (c1 == '.' && c2 =='.') 909 break; 910 else if (c1 == '.') { 911 p2++; 912 c1 = ' '; 913 } else if (c2 == '.') { 914 p1++; 915 c2 = ' '; 916 } else { 917 p1++; 918 p2++; 919 } 920 921 if (c1 < c2) 922 return -1; 923 else if (c1 > c2) { 924 return 1; 925 } 926 } 927 928 if (first[p1] == '.' && second[p2] == '.') { 929 p1++; 930 p2++; 931 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1 932 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) { 933 c1 = first[p1]; 934 c2 = second[p2]; 935 if (c1 == ';' && c2 == ';') 936 break; 937 else if (c1 == ';') { 938 p2++; 939 c1 = ' '; 940 } else if (c2 == ';') { 941 p1++; 942 c2 = ' '; 943 } else { 944 p1++; 945 p2++; 946 } 947 948 if (c1 < c2) 949 return -1; 950 else if (c1 > c2) 951 return 1; 952 } 953 } 954 return 0; 955 } 956 957 /* 958 * Insert a node into list with ISO sorting rules 959 * @param cd9660node * The head node of the list 960 * @param cd9660node * The node to be inserted 961 */ 962 static void 963 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new) 964 { 965 int compare; 966 cd9660node *cn; 967 struct cd9660_children_head *head = &parent->cn_children; 968 969 /* TODO: Optimize? */ 970 cn_new->parent = parent; 971 972 /* 973 * first will either be 0, the . or the .. 974 * if . or .., this means no other entry may be written before first 975 * if 0, the new node may be inserted at the head 976 */ 977 978 TAILQ_FOREACH(cn, head, cn_next_child) { 979 /* 980 * Dont insert a node twice - 981 * that would cause an infinite loop 982 */ 983 if (cn_new == cn) 984 return; 985 986 compare = cd9660_compare_filename(cn_new->isoDirRecord->name, 987 cn->isoDirRecord->name); 988 989 if (compare == 0) 990 compare = cd9660_compare_filename(cn_new->node->name, 991 cn->node->name); 992 993 if (compare < 0) 994 break; 995 } 996 if (cn == NULL) 997 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child); 998 else 999 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child); 1000 } 1001 1002 /* 1003 * Called After cd9660_sorted_child_insert 1004 * handles file collisions by suffixing each filname with ~n 1005 * where n represents the files respective place in the ordering 1006 */ 1007 static int 1008 cd9660_handle_collisions(cd9660node *colliding, int past) 1009 { 1010 cd9660node *iter, *next, *prev; 1011 int skip; 1012 int delete_chars = 0; 1013 int temp_past = past; 1014 int temp_skip; 1015 int flag = 0; 1016 cd9660node *end_of_range; 1017 1018 for (iter = TAILQ_FIRST(&colliding->cn_children); 1019 iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) { 1020 if (strcmp(iter->isoDirRecord->name, 1021 next->isoDirRecord->name) != 0) { 1022 iter = TAILQ_NEXT(iter, cn_next_child); 1023 continue; 1024 } 1025 flag = 1; 1026 temp_skip = skip = cd9660_count_collisions(iter); 1027 end_of_range = iter; 1028 while (temp_skip > 0) { 1029 temp_skip--; 1030 end_of_range = TAILQ_NEXT(end_of_range, cn_next_child); 1031 } 1032 temp_past = past; 1033 while (temp_past > 0) { 1034 if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL) 1035 end_of_range = next; 1036 else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL) 1037 iter = prev; 1038 else 1039 delete_chars++; 1040 temp_past--; 1041 } 1042 skip += past; 1043 iter = cd9660_rename_filename(iter, skip, delete_chars); 1044 } 1045 return flag; 1046 } 1047 1048 1049 static cd9660node * 1050 cd9660_rename_filename(cd9660node *iter, int num, int delete_chars) 1051 { 1052 int i = 0; 1053 int numbts, dot, semi, digit, digits, temp, powers, multiplier, count; 1054 char *naming; 1055 int maxlength; 1056 char *tmp; 1057 1058 if (diskStructure.verbose_level > 0) 1059 printf("Rename_filename called\n"); 1060 1061 /* TODO : A LOT of chanes regarding 8.3 filenames */ 1062 if (diskStructure.isoLevel == 1) 1063 maxlength = 8; 1064 else if (diskStructure.isoLevel == 2) 1065 maxlength = 31; 1066 else 1067 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION; 1068 1069 tmp = malloc(ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1070 1071 while (i < num) { 1072 powers = 1; 1073 count = 0; 1074 digits = 1; 1075 multiplier = 1; 1076 while (((int)(i / powers) ) >= 10) { 1077 digits++; 1078 powers = powers * 10; 1079 } 1080 1081 naming = iter->o_name; 1082 1083 /* 1084 while ((*naming != '.') && (*naming != ';')) { 1085 naming++; 1086 count++; 1087 } 1088 */ 1089 1090 dot = -1; 1091 semi = -1; 1092 while (count < maxlength) { 1093 if (*naming == '.') 1094 dot = count; 1095 else if (*naming == ';') { 1096 semi = count; 1097 break; 1098 } 1099 naming++; 1100 count++; 1101 } 1102 1103 if ((count + digits) < maxlength) 1104 numbts = count; 1105 else 1106 numbts = maxlength - (digits); 1107 numbts -= delete_chars; 1108 1109 /* 8.3 rules - keep the extension, add before the dot */ 1110 1111 /* 1112 * This code makes a bunch of assumptions. 1113 * See if you can spot them all :) 1114 */ 1115 1116 /* 1117 if (diskStructure.isoLevel == 1) { 1118 numbts = 8 - digits - delete_chars; 1119 if (dot < 0) { 1120 1121 } else { 1122 if (dot < 8) { 1123 memmove(&tmp[numbts],&tmp[dot],4); 1124 } 1125 } 1126 } 1127 */ 1128 1129 /* (copying just the filename before the '.' */ 1130 memcpy(tmp, (iter->o_name), numbts); 1131 1132 /* adding the appropriate number following the name */ 1133 temp = i; 1134 while (digits > 0) { 1135 digit = (int)(temp / powers); 1136 temp = temp - digit * powers; 1137 sprintf(&tmp[numbts] , "%d", digit); 1138 digits--; 1139 numbts++; 1140 powers = powers / 10; 1141 } 1142 1143 while ((*naming != ';') && (numbts < maxlength)) { 1144 tmp[numbts] = (*naming); 1145 naming++; 1146 numbts++; 1147 } 1148 1149 tmp[numbts] = ';'; 1150 tmp[numbts+1] = '1'; 1151 tmp[numbts+2] = '\0'; 1152 1153 /* 1154 * now tmp has exactly the identifier 1155 * we want so we'll copy it back to record 1156 */ 1157 memcpy((iter->isoDirRecord->name), tmp, numbts + 3); 1158 1159 iter = TAILQ_NEXT(iter, cn_next_child); 1160 i++; 1161 } 1162 1163 free(tmp); 1164 return iter; 1165 } 1166 1167 /* Todo: Figure out why these functions are nec. */ 1168 static void 1169 cd9660_copy_filenames(cd9660node *node) 1170 { 1171 cd9660node *cn; 1172 1173 if (TAILQ_EMPTY(&node->cn_children)) 1174 return; 1175 1176 if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) { 1177 debug_print_tree(diskStructure.rootNode, 0); 1178 exit(1); 1179 } 1180 1181 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1182 cd9660_copy_filenames(cn); 1183 memcpy(cn->o_name, cn->isoDirRecord->name, 1184 ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1185 } 1186 } 1187 1188 static void 1189 cd9660_sorting_nodes(cd9660node *node) 1190 { 1191 cd9660node *cn; 1192 1193 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) 1194 cd9660_sorting_nodes(cn); 1195 cd9660_sort_nodes(node); 1196 } 1197 1198 /* XXX Bubble sort. */ 1199 static void 1200 cd9660_sort_nodes(cd9660node *node) 1201 { 1202 cd9660node *cn, *next; 1203 1204 do { 1205 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1206 if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL) 1207 return; 1208 else if (strcmp(next->isoDirRecord->name, 1209 cn->isoDirRecord->name) >= 0) 1210 continue; 1211 TAILQ_REMOVE(&node->cn_children, next, cn_next_child); 1212 TAILQ_INSERT_BEFORE(cn, next, cn_next_child); 1213 break; 1214 } 1215 } while (cn != NULL); 1216 } 1217 1218 static int 1219 cd9660_count_collisions(cd9660node *copy) 1220 { 1221 int count = 0; 1222 cd9660node *iter, *next; 1223 1224 for (iter = copy; 1225 (next = TAILQ_NEXT(iter, cn_next_child)) != NULL; 1226 iter = next) { 1227 if (cd9660_compare_filename(iter->isoDirRecord->name, 1228 next->isoDirRecord->name) == 0) 1229 count++; 1230 else 1231 return count; 1232 } 1233 #if 0 1234 if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) { 1235 printf("cd9660_recurse_on_collision: count is %i \n", count); 1236 compare = cd9660_compare_filename(iter->isoDirRecord->name, 1237 next->isoDirRecord->name); 1238 if (compare == 0) { 1239 count++; 1240 return cd9660_recurse_on_collision(next, count); 1241 } else 1242 return count; 1243 } 1244 #endif 1245 return count; 1246 } 1247 1248 static cd9660node * 1249 cd9660_rrip_move_directory(cd9660node *dir) 1250 { 1251 char newname[9]; 1252 cd9660node *tfile; 1253 1254 /* 1255 * This function needs to: 1256 * 1) Create an empty virtual file in place of the old directory 1257 * 2) Point the virtual file to the new directory 1258 * 3) Point the relocated directory to its old parent 1259 * 4) Move the directory specified by dir into rr_moved_dir, 1260 * and rename it to "diskStructure.rock_ridge_move_count" (as a string) 1261 */ 1262 1263 /* First see if the moved directory even exists */ 1264 if (diskStructure.rr_moved_dir == NULL) { 1265 diskStructure.rr_moved_dir = 1266 cd9660_create_directory(ISO_RRIP_DEFAULT_MOVE_DIR_NAME, 1267 diskStructure.rootNode, dir); 1268 if (diskStructure.rr_moved_dir == NULL) 1269 return 0; 1270 } 1271 1272 /* Create a file with the same ORIGINAL name */ 1273 tfile = cd9660_create_file(dir->node->name, dir->parent, dir); 1274 if (tfile == NULL) 1275 return NULL; 1276 1277 diskStructure.rock_ridge_move_count++; 1278 snprintf(newname, sizeof(newname), "%08i", 1279 diskStructure.rock_ridge_move_count); 1280 1281 /* Point to old parent */ 1282 dir->rr_real_parent = dir->parent; 1283 1284 /* Place the placeholder file */ 1285 if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) { 1286 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile, 1287 cn_next_child); 1288 } else { 1289 cd9660_sorted_child_insert(dir->rr_real_parent, tfile); 1290 } 1291 1292 /* Point to new parent */ 1293 dir->parent = diskStructure.rr_moved_dir; 1294 1295 /* Point the file to the moved directory */ 1296 tfile->rr_relocated = dir; 1297 1298 /* Actually move the directory */ 1299 cd9660_sorted_child_insert(diskStructure.rr_moved_dir, dir); 1300 1301 /* TODO: Inherit permissions / ownership (basically the entire inode) */ 1302 1303 /* Set the new name */ 1304 memset(dir->isoDirRecord->name, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1305 strncpy(dir->isoDirRecord->name, newname, 8); 1306 1307 return dir; 1308 } 1309 1310 static int 1311 cd9660_add_dot_records(cd9660node *root) 1312 { 1313 struct cd9660_children_head *head = &root->cn_children; 1314 cd9660node *cn; 1315 1316 TAILQ_FOREACH(cn, head, cn_next_child) { 1317 if ((cn->type & CD9660_TYPE_DIR) == 0) 1318 continue; 1319 /* Recursion first */ 1320 cd9660_add_dot_records(cn); 1321 } 1322 cd9660_create_special_directory(CD9660_TYPE_DOT, root); 1323 cd9660_create_special_directory(CD9660_TYPE_DOTDOT, root); 1324 return 1; 1325 } 1326 1327 /* 1328 * Convert node to cd9660 structure 1329 * This function is designed to be called recursively on the root node of 1330 * the filesystem 1331 * Lots of recursion going on here, want to make sure it is efficient 1332 * @param struct fsnode * The root node to be converted 1333 * @param struct cd9660* The parent node (should not be NULL) 1334 * @param int Current directory depth 1335 * @param int* Running count of the number of directories that are being created 1336 */ 1337 static void 1338 cd9660_convert_structure(fsnode *root, cd9660node *parent_node, int level, 1339 int *numDirectories, int *error) 1340 { 1341 fsnode *iterator = root; 1342 cd9660node *this_node; 1343 int working_level; 1344 int add; 1345 int flag = 0; 1346 int counter = 0; 1347 1348 /* 1349 * Newer, more efficient method, reduces recursion depth 1350 */ 1351 if (root == NULL) { 1352 warnx("%s: root is null\n", __func__); 1353 return; 1354 } 1355 1356 /* Test for an empty directory - makefs still gives us the . record */ 1357 if ((S_ISDIR(root->type)) && (root->name[0] == '.') 1358 && (root->name[1] == '\0')) { 1359 root = root->next; 1360 if (root == NULL) 1361 return; 1362 } 1363 if ((this_node = cd9660_allocate_cd9660node()) == NULL) { 1364 CD9660_MEM_ALLOC_ERROR(__func__); 1365 } 1366 1367 /* 1368 * To reduce the number of recursive calls, we will iterate over 1369 * the next pointers to the right. 1370 */ 1371 while (iterator != NULL) { 1372 add = 1; 1373 /* 1374 * Increment the directory count if this is a directory 1375 * Ignore "." entries. We will generate them later 1376 */ 1377 if (!S_ISDIR(iterator->type) || 1378 strcmp(iterator->name, ".") != 0) { 1379 1380 /* Translate the node, including its filename */ 1381 this_node->parent = parent_node; 1382 cd9660_translate_node(iterator, this_node); 1383 this_node->level = level; 1384 1385 if (S_ISDIR(iterator->type)) { 1386 (*numDirectories)++; 1387 this_node->type = CD9660_TYPE_DIR; 1388 working_level = level + 1; 1389 1390 /* 1391 * If at level 8, directory would be at 8 1392 * and have children at 9 which is not 1393 * allowed as per ISO spec 1394 */ 1395 if (level == 8) { 1396 if ((!diskStructure.allow_deep_trees) && 1397 (!diskStructure.rock_ridge_enabled)) { 1398 warnx("error: found entry " 1399 "with depth greater " 1400 "than 8."); 1401 (*error) = 1; 1402 return; 1403 } else if (diskStructure. 1404 rock_ridge_enabled) { 1405 working_level = 3; 1406 /* 1407 * Moved directory is actually 1408 * at level 2. 1409 */ 1410 this_node->level = 1411 working_level - 1; 1412 if (cd9660_rrip_move_directory( 1413 this_node) == 0) { 1414 warnx("Failure in " 1415 "cd9660_rrip_" 1416 "move_directory" 1417 ); 1418 (*error) = 1; 1419 return; 1420 } 1421 add = 0; 1422 } 1423 } 1424 1425 /* Do the recursive call on the children */ 1426 if (iterator->child != 0) { 1427 cd9660_convert_structure( 1428 iterator->child, this_node, 1429 working_level, 1430 numDirectories, error); 1431 1432 if ((*error) == 1) { 1433 warnx("%s: Error on recursive " 1434 "call", __func__); 1435 return; 1436 } 1437 } 1438 1439 } else { 1440 /* Only directories should have children */ 1441 assert(iterator->child == NULL); 1442 1443 this_node->type = CD9660_TYPE_FILE; 1444 } 1445 1446 /* 1447 * Finally, do a sorted insert 1448 */ 1449 if (add) { 1450 cd9660_sorted_child_insert( 1451 parent_node, this_node); 1452 } 1453 1454 /*Allocate new temp_node */ 1455 if (iterator->next != 0) { 1456 this_node = cd9660_allocate_cd9660node(); 1457 if (this_node == NULL) 1458 CD9660_MEM_ALLOC_ERROR(__func__); 1459 } 1460 } 1461 iterator = iterator->next; 1462 } 1463 1464 /* cd9660_handle_collisions(first_node); */ 1465 1466 /* TODO: need cleanup */ 1467 cd9660_copy_filenames(parent_node); 1468 1469 do { 1470 flag = cd9660_handle_collisions(parent_node, counter); 1471 counter++; 1472 cd9660_sorting_nodes(parent_node); 1473 } while ((flag == 1) && (counter < 100)); 1474 } 1475 1476 /* 1477 * Clean up the cd9660node tree 1478 * This is designed to be called recursively on the root node 1479 * @param struct cd9660node *root The node to free 1480 * @returns void 1481 */ 1482 static void 1483 cd9660_free_structure(cd9660node *root) 1484 { 1485 cd9660node *cn; 1486 1487 while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) { 1488 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child); 1489 cd9660_free_structure(cn); 1490 } 1491 free(root); 1492 } 1493 1494 /* 1495 * Be a little more memory conservative: 1496 * instead of having the TAILQ_ENTRY as part of the cd9660node, 1497 * just create a temporary structure 1498 */ 1499 struct ptq_entry 1500 { 1501 TAILQ_ENTRY(ptq_entry) ptq; 1502 cd9660node *node; 1503 } *n; 1504 1505 #define PTQUEUE_NEW(n,s,r,t){\ 1506 n = malloc(sizeof(struct s)); \ 1507 if (n == NULL) \ 1508 return r; \ 1509 n->node = t;\ 1510 } 1511 1512 /* 1513 * Generate the path tables 1514 * The specific implementation of this function is left as an exercise to the 1515 * programmer. It could be done recursively. Make sure you read how the path 1516 * table has to be laid out, it has levels. 1517 * @param struct iso9660_disk *disk The disk image 1518 * @returns int The number of built path tables (between 1 and 4), 0 on failure 1519 */ 1520 static int 1521 cd9660_generate_path_table(void) 1522 { 1523 cd9660node *cn, *dirNode = diskStructure.rootNode; 1524 cd9660node *last = dirNode; 1525 int pathTableSize = 0; /* computed as we go */ 1526 int counter = 1; /* root gets a count of 0 */ 1527 int parentRecNum = 0; /* root's parent is '0' */ 1528 1529 TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head; 1530 TAILQ_INIT(&pt_head); 1531 1532 PTQUEUE_NEW(n, ptq_entry, -1, diskStructure.rootNode); 1533 1534 /* Push the root node */ 1535 TAILQ_INSERT_HEAD(&pt_head, n, ptq); 1536 1537 /* Breadth-first traversal of file structure */ 1538 while (pt_head.tqh_first != 0) { 1539 n = pt_head.tqh_first; 1540 dirNode = n->node; 1541 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq); 1542 free(n); 1543 1544 /* Update the size */ 1545 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE 1546 + dirNode->isoDirRecord->name_len[0]+ 1547 (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1); 1548 /* includes the padding bit */ 1549 1550 dirNode->ptnumber=counter; 1551 if (dirNode != last) { 1552 last->ptnext = dirNode; 1553 dirNode->ptprev = last; 1554 } 1555 last = dirNode; 1556 1557 parentRecNum = 1; 1558 if (dirNode->parent != 0) 1559 parentRecNum = dirNode->parent->ptnumber; 1560 1561 /* Push children onto queue */ 1562 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) { 1563 /* 1564 * Dont add the DOT and DOTDOT types to the path 1565 * table. 1566 */ 1567 if ((cn->type != CD9660_TYPE_DOT) 1568 && (cn->type != CD9660_TYPE_DOTDOT)) { 1569 1570 if (S_ISDIR(cn->node->type)) { 1571 PTQUEUE_NEW(n, ptq_entry, -1, cn); 1572 TAILQ_INSERT_TAIL(&pt_head, n, ptq); 1573 } 1574 } 1575 } 1576 counter++; 1577 } 1578 return pathTableSize; 1579 } 1580 1581 void 1582 cd9660_compute_full_filename(cd9660node *node, char *buf, int level) 1583 { 1584 cd9660node *parent; 1585 1586 parent = (node->rr_real_parent == NULL ? 1587 node->parent : node->rr_real_parent); 1588 if (parent != NULL) { 1589 cd9660_compute_full_filename(parent, buf, level + 1); 1590 strcat(buf, node->node->name); 1591 } else { 1592 /* We are at the root */ 1593 strcat(buf, diskStructure.rootFilesystemPath); 1594 if (buf[strlen(buf) - 1] == '/') 1595 buf[strlen(buf) - 1] = '\0'; 1596 } 1597 1598 if (level != 0) 1599 strcat(buf, "/"); 1600 } 1601 1602 /* NEW filename conversion method */ 1603 typedef int(*cd9660_filename_conversion_functor)(const char *, char *, int); 1604 1605 1606 /* 1607 * TODO: These two functions are almost identical. 1608 * Some code cleanup is possible here 1609 * 1610 * XXX bounds checking! 1611 */ 1612 static int 1613 cd9660_level1_convert_filename(const char *oldname, char *newname, int is_file) 1614 { 1615 /* 1616 * ISO 9660 : 10.1 1617 * File Name shall not contain more than 8 d or d1 characters 1618 * File Name Extension shall not contain more than 3 d or d1 characters 1619 * Directory Identifier shall not contain more than 8 d or d1 characters 1620 */ 1621 int namelen = 0; 1622 int extlen = 0; 1623 int found_ext = 0; 1624 1625 while (*oldname != '\0') { 1626 /* Handle period first, as it is special */ 1627 if (*oldname == '.') { 1628 if (found_ext) { 1629 *newname++ = '_'; 1630 extlen ++; 1631 } 1632 else { 1633 *newname++ = '.'; 1634 found_ext = 1; 1635 } 1636 } else { 1637 /* Enforce 12.3 / 8 */ 1638 if (((namelen == 8) && !found_ext) || 1639 (found_ext && extlen == 3)) { 1640 break; 1641 } 1642 1643 if (islower((unsigned char)*oldname)) 1644 *newname++ = toupper((unsigned char)*oldname); 1645 else if (isupper((unsigned char)*oldname) 1646 || isdigit((unsigned char)*oldname)) 1647 *newname++ = *oldname; 1648 else 1649 *newname++ = '_'; 1650 1651 if (found_ext) 1652 extlen++; 1653 else 1654 namelen++; 1655 } 1656 oldname ++; 1657 } 1658 if (is_file) { 1659 if (!found_ext && !diskStructure.omit_trailing_period) 1660 *newname++ = '.'; 1661 /* Add version */ 1662 sprintf(newname, ";%i", 1); 1663 } 1664 return namelen + extlen + found_ext; 1665 } 1666 1667 /* XXX bounds checking! */ 1668 static int 1669 cd9660_level2_convert_filename(const char *oldname, char *newname, int is_file) 1670 { 1671 /* 1672 * ISO 9660 : 7.5.1 1673 * File name : 0+ d or d1 characters 1674 * separator 1 (.) 1675 * File name extension : 0+ d or d1 characters 1676 * separator 2 (;) 1677 * File version number (5 characters, 1-32767) 1678 * 1 <= Sum of File name and File name extension <= 30 1679 */ 1680 int namelen = 0; 1681 int extlen = 0; 1682 int found_ext = 0; 1683 1684 while (*oldname != '\0') { 1685 /* Handle period first, as it is special */ 1686 if (*oldname == '.') { 1687 if (found_ext) { 1688 if (diskStructure.allow_multidot) { 1689 *newname++ = '.'; 1690 } else { 1691 *newname++ = '_'; 1692 } 1693 extlen ++; 1694 } 1695 else { 1696 *newname++ = '.'; 1697 found_ext = 1; 1698 } 1699 } else { 1700 if ((namelen + extlen) == 30) 1701 break; 1702 1703 if (islower((unsigned char)*oldname)) 1704 *newname++ = toupper((unsigned char)*oldname); 1705 else if (isupper((unsigned char)*oldname) || 1706 isdigit((unsigned char)*oldname)) 1707 *newname++ = *oldname; 1708 else if (diskStructure.allow_multidot && 1709 *oldname == '.') { 1710 *newname++ = '.'; 1711 } else { 1712 *newname++ = '_'; 1713 } 1714 1715 if (found_ext) 1716 extlen++; 1717 else 1718 namelen++; 1719 } 1720 oldname ++; 1721 } 1722 if (is_file) { 1723 if (!found_ext && !diskStructure.omit_trailing_period) 1724 *newname++ = '.'; 1725 /* Add version */ 1726 sprintf(newname, ";%i", 1); 1727 } 1728 return namelen + extlen + found_ext; 1729 } 1730 1731 #if 0 1732 static int 1733 cd9660_joliet_convert_filename(const char *oldname, char *newname, int is_file) 1734 { 1735 /* TODO: implement later, move to cd9660_joliet.c ?? */ 1736 } 1737 #endif 1738 1739 1740 /* 1741 * Convert a file name to ISO compliant file name 1742 * @param char * oldname The original filename 1743 * @param char ** newname The new file name, in the appropriate character 1744 * set and of appropriate length 1745 * @param int 1 if file, 0 if directory 1746 * @returns int The length of the new string 1747 */ 1748 static int 1749 cd9660_convert_filename(const char *oldname, char *newname, int is_file) 1750 { 1751 /* NEW */ 1752 cd9660_filename_conversion_functor conversion_function = 0; 1753 if (diskStructure.isoLevel == 1) 1754 conversion_function = &cd9660_level1_convert_filename; 1755 else if (diskStructure.isoLevel == 2) 1756 conversion_function = &cd9660_level2_convert_filename; 1757 return (*conversion_function)(oldname, newname, is_file); 1758 } 1759 1760 int 1761 cd9660_compute_record_size(cd9660node *node) 1762 { 1763 int size = node->isoDirRecord->length[0]; 1764 1765 if (diskStructure.rock_ridge_enabled) 1766 size += node->susp_entry_size; 1767 return size; 1768 } 1769 1770 static void 1771 cd9660_populate_dot_records(cd9660node *node) 1772 { 1773 node->dot_record->fileDataSector = node->fileDataSector; 1774 memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34); 1775 node->dot_record->isoDirRecord->name_len[0] = 1; 1776 node->dot_record->isoDirRecord->name[0] = 0; 1777 node->dot_record->isoDirRecord->name[1] = 0; 1778 node->dot_record->isoDirRecord->length[0] = 34; 1779 node->dot_record->fileRecordSize = 1780 cd9660_compute_record_size(node->dot_record); 1781 1782 if (node == diskStructure.rootNode) { 1783 node->dot_dot_record->fileDataSector = node->fileDataSector; 1784 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord, 1785 34); 1786 } else { 1787 node->dot_dot_record->fileDataSector = 1788 node->parent->fileDataSector; 1789 memcpy(node->dot_dot_record->isoDirRecord, 1790 node->parent->isoDirRecord,34); 1791 } 1792 node->dot_dot_record->isoDirRecord->name_len[0] = 1; 1793 node->dot_dot_record->isoDirRecord->name[0] = 1; 1794 node->dot_dot_record->isoDirRecord->name[1] = 0; 1795 node->dot_dot_record->isoDirRecord->length[0] = 34; 1796 node->dot_dot_record->fileRecordSize = 1797 cd9660_compute_record_size(node->dot_dot_record); 1798 } 1799 1800 /* 1801 * @param struct cd9660node *node The node 1802 * @param int The offset (in bytes) - SHOULD align to the beginning of a sector 1803 * @returns int The total size of files and directory entries (should be 1804 * a multiple of sector size) 1805 */ 1806 static int 1807 cd9660_compute_offsets(cd9660node *node, int startOffset) 1808 { 1809 /* 1810 * This function needs to compute the size of directory records and 1811 * runs, file lengths, and set the appropriate variables both in 1812 * cd9660node and isoDirEntry 1813 */ 1814 int used_bytes = 0; 1815 int current_sector_usage = 0; 1816 cd9660node *child; 1817 fsinode *inode; 1818 int r; 1819 1820 assert(node != NULL); 1821 1822 1823 /* 1824 * NOTE : There needs to be some special case detection for 1825 * the "real root" node, since for it, node->node is undefined 1826 */ 1827 1828 node->fileDataSector = -1; 1829 1830 if (node->type & CD9660_TYPE_DIR) { 1831 node->fileRecordSize = cd9660_compute_record_size(node); 1832 /*Set what sector this directory starts in*/ 1833 node->fileDataSector = 1834 CD9660_BLOCKS(diskStructure.sectorSize,startOffset); 1835 1836 cd9660_bothendian_dword(node->fileDataSector, 1837 node->isoDirRecord->extent); 1838 1839 /* 1840 * First loop over children, need to know the size of 1841 * their directory records 1842 */ 1843 node->fileSectorsUsed = 1; 1844 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) { 1845 node->fileDataLength += 1846 cd9660_compute_record_size(child); 1847 if ((cd9660_compute_record_size(child) + 1848 current_sector_usage) >= 1849 diskStructure.sectorSize) { 1850 current_sector_usage = 0; 1851 node->fileSectorsUsed++; 1852 } 1853 1854 current_sector_usage += 1855 cd9660_compute_record_size(child); 1856 } 1857 1858 cd9660_bothendian_dword(node->fileSectorsUsed * 1859 diskStructure.sectorSize,node->isoDirRecord->size); 1860 1861 /* 1862 * This should point to the sector after the directory 1863 * record (or, the first byte in that sector) 1864 */ 1865 used_bytes += node->fileSectorsUsed * diskStructure.sectorSize; 1866 1867 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1868 child != NULL; child = TAILQ_NEXT(child, cn_next_child)) { 1869 /* Directories need recursive call */ 1870 if (S_ISDIR(child->node->type)) { 1871 r = cd9660_compute_offsets(child, 1872 used_bytes + startOffset); 1873 1874 if (r != -1) 1875 used_bytes += r; 1876 else 1877 return -1; 1878 } 1879 } 1880 1881 /* Explicitly set the . and .. records */ 1882 cd9660_populate_dot_records(node); 1883 1884 /* Finally, do another iteration to write the file data*/ 1885 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1886 child != NULL; 1887 child = TAILQ_NEXT(child, cn_next_child)) { 1888 /* Files need extent set */ 1889 if (S_ISDIR(child->node->type)) 1890 continue; 1891 child->fileRecordSize = 1892 cd9660_compute_record_size(child); 1893 1894 child->fileSectorsUsed = 1895 CD9660_BLOCKS(diskStructure.sectorSize, 1896 child->fileDataLength); 1897 1898 inode = child->node->inode; 1899 if ((inode->flags & FI_ALLOCATED) == 0) { 1900 inode->ino = 1901 CD9660_BLOCKS(diskStructure.sectorSize, 1902 used_bytes + startOffset); 1903 inode->flags |= FI_ALLOCATED; 1904 used_bytes += child->fileSectorsUsed * 1905 diskStructure.sectorSize; 1906 } else { 1907 INODE_WARNX(("%s: already allocated inode %d " 1908 "data sectors at %" PRIu32, __func__, 1909 (int)inode->st.st_ino, inode->ino)); 1910 } 1911 child->fileDataSector = inode->ino; 1912 cd9660_bothendian_dword(child->fileDataSector, 1913 child->isoDirRecord->extent); 1914 } 1915 } 1916 1917 return used_bytes; 1918 } 1919 1920 #if 0 1921 /* Might get rid of this func */ 1922 static int 1923 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file) 1924 { 1925 to->node->inode->st.st_dev = 0; 1926 to->node->inode->st.st_ino = 0; 1927 to->node->inode->st.st_size = 0; 1928 to->node->inode->st.st_blksize = from->node->inode->st.st_blksize; 1929 to->node->inode->st.st_atime = from->node->inode->st.st_atime; 1930 to->node->inode->st.st_mtime = from->node->inode->st.st_mtime; 1931 to->node->inode->st.st_ctime = from->node->inode->st.st_ctime; 1932 to->node->inode->st.st_uid = from->node->inode->st.st_uid; 1933 to->node->inode->st.st_gid = from->node->inode->st.st_gid; 1934 to->node->inode->st.st_mode = from->node->inode->st.st_mode; 1935 /* Clear out type */ 1936 to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT); 1937 if (file) 1938 to->node->inode->st.st_mode |= S_IFREG; 1939 else 1940 to->node->inode->st.st_mode |= S_IFDIR; 1941 return 1; 1942 } 1943 #endif 1944 1945 static cd9660node * 1946 cd9660_create_virtual_entry(const char *name, cd9660node *parent, int file, 1947 int insert) 1948 { 1949 cd9660node *temp; 1950 fsnode * tfsnode; 1951 1952 assert(parent != NULL); 1953 1954 temp = cd9660_allocate_cd9660node(); 1955 if (temp == NULL) 1956 return NULL; 1957 1958 if ((tfsnode = malloc(sizeof(fsnode))) == NULL) { 1959 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry"); 1960 return NULL; 1961 } 1962 1963 /* Assume for now name is a valid length */ 1964 if ((tfsnode->name = malloc(strlen(name) + 1)) == NULL) { 1965 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry"); 1966 return NULL; 1967 } 1968 1969 if ((temp->isoDirRecord = 1970 malloc(sizeof(iso_directory_record_cd9660))) == NULL) { 1971 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry"); 1972 return NULL; 1973 } 1974 1975 strcpy(tfsnode->name, name); 1976 1977 cd9660_convert_filename(tfsnode->name, temp->isoDirRecord->name, file); 1978 1979 temp->node = tfsnode; 1980 temp->parent = parent; 1981 1982 if (insert) { 1983 if (temp->parent != NULL) { 1984 temp->level = temp->parent->level + 1; 1985 if (!TAILQ_EMPTY(&temp->parent->cn_children)) 1986 cd9660_sorted_child_insert(temp->parent, temp); 1987 else 1988 TAILQ_INSERT_HEAD(&temp->parent->cn_children, 1989 temp, cn_next_child); 1990 } 1991 } 1992 1993 if (parent->node != NULL) { 1994 tfsnode->type = parent->node->type; 1995 } 1996 1997 /* Clear out file type bits */ 1998 tfsnode->type &= ~(S_IFMT); 1999 if (file) 2000 tfsnode->type |= S_IFREG; 2001 else 2002 tfsnode->type |= S_IFDIR; 2003 2004 /* Indicate that there is no spec entry (inode) */ 2005 tfsnode->flags &= ~(FSNODE_F_HASSPEC); 2006 #if 0 2007 cd9660_copy_stat_info(parent, temp, file); 2008 #endif 2009 return temp; 2010 } 2011 2012 static cd9660node * 2013 cd9660_create_file(const char * name, cd9660node *parent, cd9660node *me) 2014 { 2015 cd9660node *temp; 2016 2017 temp = cd9660_create_virtual_entry(name,parent,1,1); 2018 if (temp == NULL) 2019 return NULL; 2020 2021 temp->fileDataLength = 0; 2022 2023 temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL; 2024 2025 if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL) 2026 return NULL; 2027 *temp->node->inode = *me->node->inode; 2028 2029 if (cd9960_translate_node_common(temp) == 0) 2030 return NULL; 2031 return temp; 2032 } 2033 2034 /* 2035 * Create a new directory which does not exist on disk 2036 * @param const char * name The name to assign to the directory 2037 * @param const char * parent Pointer to the parent directory 2038 * @returns cd9660node * Pointer to the new directory 2039 */ 2040 static cd9660node * 2041 cd9660_create_directory(const char *name, cd9660node *parent, cd9660node *me) 2042 { 2043 cd9660node *temp; 2044 2045 temp = cd9660_create_virtual_entry(name,parent,0,1); 2046 if (temp == NULL) 2047 return NULL; 2048 temp->node->type |= S_IFDIR; 2049 2050 temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL; 2051 2052 if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL) 2053 return NULL; 2054 *temp->node->inode = *me->node->inode; 2055 2056 if (cd9960_translate_node_common(temp) == 0) 2057 return NULL; 2058 return temp; 2059 } 2060 2061 static cd9660node * 2062 cd9660_create_special_directory(u_char type, cd9660node *parent) 2063 { 2064 cd9660node *temp, *first; 2065 char na[2]; 2066 2067 assert(parent != NULL); 2068 2069 if (type == CD9660_TYPE_DOT) 2070 na[0] = 0; 2071 else if (type == CD9660_TYPE_DOTDOT) 2072 na[0] = 1; 2073 else 2074 return 0; 2075 2076 na[1] = 0; 2077 if ((temp = cd9660_create_virtual_entry(na, parent, 0, 0)) == NULL) 2078 return NULL; 2079 2080 temp->parent = parent; 2081 temp->type = type; 2082 temp->isoDirRecord->length[0] = 34; 2083 /* Dot record is always first */ 2084 if (type == CD9660_TYPE_DOT) { 2085 parent->dot_record = temp; 2086 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child); 2087 /* DotDot should be second */ 2088 } else if (type == CD9660_TYPE_DOTDOT) { 2089 parent->dot_dot_record = temp; 2090 /* 2091 * If the first child is the dot record, insert 2092 * this second. Otherwise, insert it at the head. 2093 */ 2094 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL || 2095 (first->type & CD9660_TYPE_DOT) == 0) { 2096 TAILQ_INSERT_HEAD(&parent->cn_children, temp, 2097 cn_next_child); 2098 } else { 2099 TAILQ_INSERT_AFTER(&parent->cn_children, first, temp, 2100 cn_next_child); 2101 } 2102 } 2103 2104 return temp; 2105 } 2106 2107 int 2108 cd9660_add_generic_bootimage(const char *bootimage) 2109 { 2110 struct stat stbuf; 2111 2112 assert(bootimage != NULL); 2113 2114 if (*bootimage == '\0') { 2115 warnx("Error: Boot image must be a filename"); 2116 return 0; 2117 } 2118 2119 if ((diskStructure.generic_bootimage = strdup(bootimage)) == NULL) { 2120 warn("%s: strdup", __func__); 2121 return 0; 2122 } 2123 2124 /* Get information about the file */ 2125 if (lstat(diskStructure.generic_bootimage, &stbuf) == -1) 2126 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__, 2127 diskStructure.generic_bootimage); 2128 2129 if (stbuf.st_size > 32768) { 2130 warnx("Error: Boot image must be no greater than 32768 bytes"); 2131 return 0; 2132 } 2133 2134 if (diskStructure.verbose_level > 0) { 2135 printf("Generic boot image image has size %lld\n", 2136 (long long)stbuf.st_size); 2137 } 2138 2139 diskStructure.has_generic_bootimage = 1; 2140 2141 return 1; 2142 } 2143
Indexes created Mon Sep 22 21:09:42 GMT 2025