cd9660.c revision 1.43
1 /* $NetBSD: cd9660.c,v 1.43 2013/01/31 15:15:15 christos 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 1.43 2013/01/31 15:15:15 christos Exp $"); 107 #endif /* !__lint */ 108 109 #include <string.h> 110 #include <ctype.h> 111 #include <sys/param.h> 112 #include <sys/queue.h> 113 #include <util.h> 114 115 #include "makefs.h" 116 #include "cd9660.h" 117 #include "cd9660/iso9660_rrip.h" 118 #include "cd9660/cd9660_archimedes.h" 119 120 /* 121 * Global variables 122 */ 123 124 static void cd9660_finalize_PVD(iso9660_disk *); 125 static cd9660node *cd9660_allocate_cd9660node(void); 126 static void cd9660_set_defaults(iso9660_disk *); 127 static int cd9660_arguments_set_string(const char *, const char *, int, 128 char, char *); 129 static void cd9660_populate_iso_dir_record( 130 struct _iso_directory_record_cd9660 *, u_char, u_char, u_char, 131 const char *); 132 static void cd9660_setup_root_node(iso9660_disk *); 133 static int cd9660_setup_volume_descriptors(iso9660_disk *); 134 #if 0 135 static int cd9660_fill_extended_attribute_record(cd9660node *); 136 #endif 137 static void cd9660_sort_nodes(cd9660node *); 138 static int cd9660_translate_node_common(iso9660_disk *, cd9660node *); 139 static int cd9660_translate_node(iso9660_disk *, fsnode *, cd9660node *); 140 static int cd9660_compare_filename(const char *, const char *); 141 static void cd9660_sorted_child_insert(cd9660node *, cd9660node *); 142 static int cd9660_handle_collisions(iso9660_disk *, cd9660node *, int); 143 static cd9660node *cd9660_rename_filename(iso9660_disk *, cd9660node *, int, 144 int); 145 static void cd9660_copy_filenames(iso9660_disk *, cd9660node *); 146 static void cd9660_sorting_nodes(cd9660node *); 147 static int cd9660_count_collisions(cd9660node *); 148 static cd9660node *cd9660_rrip_move_directory(iso9660_disk *, cd9660node *); 149 static int cd9660_add_dot_records(iso9660_disk *, cd9660node *); 150 151 static void cd9660_convert_structure(iso9660_disk *, fsnode *, cd9660node *, int, 152 int *, int *); 153 static void cd9660_free_structure(cd9660node *); 154 static int cd9660_generate_path_table(iso9660_disk *); 155 static int cd9660_level1_convert_filename(iso9660_disk *, const char *, char *, 156 int); 157 static int cd9660_level2_convert_filename(iso9660_disk *, const char *, char *, 158 int); 159 #if 0 160 static int cd9660_joliet_convert_filename(iso9660_disk *, const char *, char *, 161 int); 162 #endif 163 static int cd9660_convert_filename(iso9660_disk *, const char *, char *, int); 164 static void cd9660_populate_dot_records(iso9660_disk *, cd9660node *); 165 static int64_t cd9660_compute_offsets(iso9660_disk *, cd9660node *, int64_t); 166 #if 0 167 static int cd9660_copy_stat_info(cd9660node *, cd9660node *, int); 168 #endif 169 static cd9660node *cd9660_create_virtual_entry(iso9660_disk *, const char *, 170 cd9660node *, int, int); 171 static cd9660node *cd9660_create_file(iso9660_disk *, const char *, 172 cd9660node *, cd9660node *); 173 static cd9660node *cd9660_create_directory(iso9660_disk *, const char *, 174 cd9660node *, cd9660node *); 175 static cd9660node *cd9660_create_special_directory(iso9660_disk *, u_char, 176 cd9660node *); 177 static int cd9660_add_generic_bootimage(iso9660_disk *, const char *); 178 179 180 /* 181 * Allocate and initalize a cd9660node 182 * @returns struct cd9660node * Pointer to new node, or NULL on error 183 */ 184 static cd9660node * 185 cd9660_allocate_cd9660node(void) 186 { 187 cd9660node *temp = ecalloc(1, sizeof(*temp)); 188 TAILQ_INIT(&temp->cn_children); 189 temp->parent = temp->dot_record = temp->dot_dot_record = NULL; 190 temp->ptnext = temp->ptprev = temp->ptlast = NULL; 191 temp->node = NULL; 192 temp->isoDirRecord = NULL; 193 temp->isoExtAttributes = NULL; 194 temp->rr_real_parent = temp->rr_relocated = NULL; 195 temp->su_tail_data = NULL; 196 return temp; 197 } 198 199 int cd9660_defaults_set = 0; 200 201 /** 202 * Set default values for cd9660 extension to makefs 203 */ 204 static void 205 cd9660_set_defaults(iso9660_disk *diskStructure) 206 { 207 /*Fix the sector size for now, though the spec allows for other sizes*/ 208 diskStructure->sectorSize = 2048; 209 210 /* Set up defaults in our own structure */ 211 diskStructure->verbose_level = 0; 212 diskStructure->keep_bad_images = 0; 213 diskStructure->follow_sym_links = 0; 214 diskStructure->isoLevel = 2; 215 216 diskStructure->rock_ridge_enabled = 0; 217 diskStructure->rock_ridge_renamed_dir_name = 0; 218 diskStructure->rock_ridge_move_count = 0; 219 diskStructure->rr_moved_dir = 0; 220 221 diskStructure->archimedes_enabled = 0; 222 diskStructure->chrp_boot = 0; 223 224 diskStructure->include_padding_areas = 1; 225 226 /* Spec breaking functionality */ 227 diskStructure->allow_deep_trees = 228 diskStructure->allow_start_dot = 229 diskStructure->allow_max_name = 230 diskStructure->allow_illegal_chars = 231 diskStructure->allow_lowercase = 232 diskStructure->allow_multidot = 233 diskStructure->omit_trailing_period = 0; 234 235 /* Make sure the PVD is clear */ 236 memset(&diskStructure->primaryDescriptor, 0, 2048); 237 238 memset(diskStructure->primaryDescriptor.publisher_id, 0x20,128); 239 memset(diskStructure->primaryDescriptor.preparer_id, 0x20,128); 240 memset(diskStructure->primaryDescriptor.application_id, 0x20,128); 241 memset(diskStructure->primaryDescriptor.copyright_file_id, 0x20,37); 242 memset(diskStructure->primaryDescriptor.abstract_file_id, 0x20,37); 243 memset(diskStructure->primaryDescriptor.bibliographic_file_id, 0x20,37); 244 245 strcpy(diskStructure->primaryDescriptor.system_id,"NetBSD"); 246 247 cd9660_defaults_set = 1; 248 249 /* Boot support: Initially disabled */ 250 diskStructure->has_generic_bootimage = 0; 251 diskStructure->generic_bootimage = NULL; 252 253 diskStructure->boot_image_directory = 0; 254 /*memset(diskStructure->boot_descriptor, 0, 2048);*/ 255 256 diskStructure->is_bootable = 0; 257 TAILQ_INIT(&diskStructure->boot_images); 258 LIST_INIT(&diskStructure->boot_entries); 259 } 260 261 void 262 cd9660_prep_opts(fsinfo_t *fsopts) 263 { 264 iso9660_disk *diskStructure = ecalloc(1, sizeof(*diskStructure)); 265 266 #define OPT_STR(letter, name, desc) \ 267 { letter, name, NULL, OPT_STRBUF, 0, 0, desc } 268 269 #define OPT_NUM(letter, name, field, min, max, desc) \ 270 { letter, name, &diskStructure->field, \ 271 sizeof(diskStructure->field) == 8 ? OPT_INT64 : \ 272 (sizeof(diskStructure->field) == 4 ? OPT_INT32 : \ 273 (sizeof(diskStructure->field) == 2 ? OPT_INT16 : OPT_INT8)), \ 274 min, max, desc } 275 276 #define OPT_BOOL(letter, name, field, desc) \ 277 OPT_NUM(letter, name, field, 0, 1, desc) 278 279 const option_t cd9660_options[] = { 280 OPT_NUM('l', "isolevel", isoLevel, 281 1, 3, "ISO Level"), 282 OPT_NUM('v', "verbose", verbose_level, 283 0, 2, "Turns on verbose output"), 284 285 OPT_BOOL('h', "help", displayHelp, 286 "Show help message"), 287 OPT_BOOL('S', "follow-symlinks", follow_sym_links, 288 "Resolve symlinks in pathnames"), 289 OPT_BOOL('R', "rockridge", rock_ridge_enabled, 290 "Enable Rock-Ridge extensions"), 291 OPT_BOOL('C', "chrp-boot", chrp_boot, 292 "Enable CHRP boot"), 293 OPT_BOOL('K', "keep-bad-images", keep_bad_images, 294 "Keep bad images"), 295 OPT_BOOL('D', "allow-deep-trees", allow_deep_trees, 296 "Allow trees more than 8 levels"), 297 OPT_BOOL('a', "allow-max-name", allow_max_name, 298 "Allow 37 char filenames (unimplemented)"), 299 OPT_BOOL('i', "allow-illegal-chars", allow_illegal_chars, 300 "Allow illegal characters in filenames"), 301 OPT_BOOL('D', "allow-multidot", allow_multidot, 302 "Allow multiple periods in filenames"), 303 OPT_BOOL('o', "omit-trailing-period", omit_trailing_period, 304 "Omit trailing periods in filenames"), 305 OPT_BOOL('\0', "allow-lowercase", allow_lowercase, 306 "Allow lowercase characters in filenames"), 307 OPT_BOOL('\0', "archimedes", archimedes_enabled, 308 "Enable Archimedes structure"), 309 OPT_BOOL('\0', "no-trailing-padding", include_padding_areas, 310 "Include padding areas"), 311 312 OPT_STR('A', "applicationid", "Application Identifier"), 313 OPT_STR('P', "publisher", "Publisher Identifier"), 314 OPT_STR('p', "preparer", "Preparer Identifier"), 315 OPT_STR('L', "label", "Disk Label"), 316 OPT_STR('V', "volumeid", "Volume Set Identifier"), 317 OPT_STR('B', "bootimage", "Boot image parameter"), 318 OPT_STR('G', "generic-bootimage", "Generic boot image param"), 319 OPT_STR('\0', "bootimagedir", "Boot image directory"), 320 OPT_STR('\0', "no-emul-boot", "No boot emulation"), 321 OPT_STR('\0', "no-boot", "No boot support"), 322 OPT_STR('\0', "hard-disk-boot", "Boot from hard disk"), 323 OPT_STR('\0', "boot-load-segment", "Boot load segment"), 324 325 { .name = NULL } 326 }; 327 328 fsopts->fs_specific = diskStructure; 329 fsopts->fs_options = copy_opts(cd9660_options); 330 331 cd9660_set_defaults(diskStructure); 332 } 333 334 void 335 cd9660_cleanup_opts(fsinfo_t *fsopts) 336 { 337 free(fsopts->fs_specific); 338 free(fsopts->fs_options); 339 } 340 341 static int 342 cd9660_arguments_set_string(const char *val, const char *fieldtitle, int length, 343 char testmode, char * dest) 344 { 345 int len, test; 346 347 if (val == NULL) 348 warnx("error: The %s requires a string argument", fieldtitle); 349 else if ((len = strlen(val)) <= length) { 350 if (testmode == 'd') 351 test = cd9660_valid_d_chars(val); 352 else 353 test = cd9660_valid_a_chars(val); 354 if (test) { 355 memcpy(dest, val, len); 356 if (test == 2) 357 cd9660_uppercase_characters(dest, len); 358 return 1; 359 } else 360 warnx("error: The %s must be composed of " 361 "%c-characters", fieldtitle, testmode); 362 } else 363 warnx("error: The %s must be at most 32 characters long", 364 fieldtitle); 365 return 0; 366 } 367 368 /* 369 * Command-line parsing function 370 */ 371 372 int 373 cd9660_parse_opts(const char *option, fsinfo_t *fsopts) 374 { 375 int rv, i; 376 iso9660_disk *diskStructure = fsopts->fs_specific; 377 option_t *cd9660_options = fsopts->fs_options; 378 char buf[1024]; 379 const char *name, *desc; 380 381 assert(option != NULL); 382 383 if (debug & DEBUG_FS_PARSE_OPTS) 384 printf("cd9660_parse_opts: got `%s'\n", option); 385 386 i = set_option(cd9660_options, option, buf, sizeof(buf)); 387 if (i == -1) 388 return 0; 389 390 if (cd9660_options[i].name == NULL) 391 abort(); 392 393 394 name = cd9660_options[i].name; 395 desc = cd9660_options[i].desc; 396 switch (cd9660_options[i].letter) { 397 case 'h': 398 case 'S': 399 rv = 0; /* this is not handled yet */ 400 break; 401 case 'L': 402 rv = cd9660_arguments_set_string(buf, desc, 32, 'd', 403 diskStructure->primaryDescriptor.volume_id); 404 break; 405 case 'A': 406 rv = cd9660_arguments_set_string(buf, desc, 128, 'a', 407 diskStructure->primaryDescriptor.application_id); 408 break; 409 case 'P': 410 rv = cd9660_arguments_set_string(buf, desc, 128, 'a', 411 diskStructure->primaryDescriptor.publisher_id); 412 break; 413 case 'p': 414 rv = cd9660_arguments_set_string(buf, desc, 128, 'a', 415 diskStructure->primaryDescriptor.preparer_id); 416 break; 417 case 'V': 418 rv = cd9660_arguments_set_string(buf, desc, 128, 'a', 419 diskStructure->primaryDescriptor.volume_set_id); 420 break; 421 /* Boot options */ 422 case 'B': 423 if (buf[0] == '\0') { 424 warnx("The Boot Image parameter requires a valid boot" 425 " information string"); 426 rv = 0; 427 } else 428 rv = cd9660_add_boot_disk(diskStructure, buf); 429 break; 430 case 'G': 431 if (buf[0] == '\0') { 432 warnx("The Generic Boot Image parameter requires a" 433 " valid boot information string"); 434 rv = 0; 435 } else 436 rv = cd9660_add_generic_bootimage(diskStructure, buf); 437 break; 438 default: 439 if (strcmp(name, "bootimagedir") == 0) { 440 /* 441 * XXXfvdl this is unused. 442 */ 443 if (buf[0] == '\0') { 444 warnx("The Boot Image Directory parameter" 445 " requires a directory name\n"); 446 rv = 0; 447 } else { 448 diskStructure->boot_image_directory = 449 emalloc(strlen(buf) + 1); 450 /* BIG TODO: Add the max length function here */ 451 rv = cd9660_arguments_set_string(buf, desc, 12, 452 'd', diskStructure->boot_image_directory); 453 } 454 } else if (strcmp(name, "no-emul-boot") == 0 || 455 strcmp(name, "no-boot") == 0 || 456 strcmp(name, "hard-disk-boot") == 0) { 457 /* RRIP */ 458 cd9660_eltorito_add_boot_option(diskStructure, name, 0); 459 rv = 1; 460 } else if (strcmp(name, "boot-load-segment") == 0) { 461 if (buf[0] == '\0') { 462 warnx("Option `%s' doesn't contain a value", 463 name); 464 rv = 0; 465 } else { 466 cd9660_eltorito_add_boot_option(diskStructure, 467 name, buf); 468 rv = 1; 469 } 470 } else 471 rv = 1; 472 } 473 return rv; 474 } 475 476 /* 477 * Main function for cd9660_makefs 478 * Builds the ISO image file 479 * @param const char *image The image filename to create 480 * @param const char *dir The directory that is being read 481 * @param struct fsnode *root The root node of the filesystem tree 482 * @param struct fsinfo_t *fsopts Any options 483 */ 484 void 485 cd9660_makefs(const char *image, const char *dir, fsnode *root, 486 fsinfo_t *fsopts) 487 { 488 int64_t startoffset; 489 int numDirectories; 490 uint64_t pathTableSectors; 491 int64_t firstAvailableSector; 492 int64_t totalSpace; 493 int error; 494 cd9660node *real_root; 495 iso9660_disk *diskStructure = fsopts->fs_specific; 496 497 if (diskStructure->verbose_level > 0) 498 printf("cd9660_makefs: ISO level is %i\n", 499 diskStructure->isoLevel); 500 if (diskStructure->isoLevel < 2 && 501 diskStructure->allow_multidot) 502 errx(1, "allow-multidot requires iso level of 2\n"); 503 504 assert(image != NULL); 505 assert(dir != NULL); 506 assert(root != NULL); 507 508 if (diskStructure->displayHelp) { 509 /* 510 * Display help here - probably want to put it in 511 * a separate function 512 */ 513 return; 514 } 515 516 if (diskStructure->verbose_level > 0) 517 printf("cd9660_makefs: image %s directory %s root %p\n", 518 image, dir, root); 519 520 /* Set up some constants. Later, these will be defined with options */ 521 522 /* Counter needed for path tables */ 523 numDirectories = 0; 524 525 /* Convert tree to our own format */ 526 /* Actually, we now need to add the REAL root node, at level 0 */ 527 528 real_root = cd9660_allocate_cd9660node(); 529 real_root->isoDirRecord = emalloc(sizeof(*real_root->isoDirRecord)); 530 /* Leave filename blank for root */ 531 memset(real_root->isoDirRecord->name, 0, 532 ISO_FILENAME_MAXLENGTH_WITH_PADDING); 533 534 real_root->level = 0; 535 diskStructure->rootNode = real_root; 536 real_root->type = CD9660_TYPE_DIR; 537 error = 0; 538 real_root->node = root; 539 cd9660_convert_structure(diskStructure, root, real_root, 1, 540 &numDirectories, &error); 541 542 if (TAILQ_EMPTY(&real_root->cn_children)) { 543 errx(1, "cd9660_makefs: converted directory is empty. " 544 "Tree conversion failed\n"); 545 } else if (error != 0) { 546 errx(1, "cd9660_makefs: tree conversion failed\n"); 547 } else { 548 if (diskStructure->verbose_level > 0) 549 printf("cd9660_makefs: tree converted\n"); 550 } 551 552 /* Add the dot and dot dot records */ 553 cd9660_add_dot_records(diskStructure, real_root); 554 555 cd9660_setup_root_node(diskStructure); 556 557 if (diskStructure->verbose_level > 0) 558 printf("cd9660_makefs: done converting tree\n"); 559 560 /* non-SUSP extensions */ 561 if (diskStructure->archimedes_enabled) 562 archimedes_convert_tree(diskStructure->rootNode); 563 564 /* Rock ridge / SUSP init pass */ 565 if (diskStructure->rock_ridge_enabled) { 566 cd9660_susp_initialize(diskStructure, diskStructure->rootNode, 567 diskStructure->rootNode, NULL); 568 } 569 570 /* Build path table structure */ 571 diskStructure->pathTableLength = cd9660_generate_path_table( 572 diskStructure); 573 574 pathTableSectors = CD9660_BLOCKS(diskStructure->sectorSize, 575 diskStructure->pathTableLength); 576 577 firstAvailableSector = cd9660_setup_volume_descriptors(diskStructure); 578 if (diskStructure->is_bootable) { 579 firstAvailableSector = cd9660_setup_boot(diskStructure, 580 firstAvailableSector); 581 if (firstAvailableSector < 0) 582 errx(1, "setup_boot failed"); 583 } 584 /* LE first, then BE */ 585 diskStructure->primaryLittleEndianTableSector = firstAvailableSector; 586 diskStructure->primaryBigEndianTableSector = 587 diskStructure->primaryLittleEndianTableSector + pathTableSectors; 588 589 /* Set the secondary ones to -1, not going to use them for now */ 590 diskStructure->secondaryBigEndianTableSector = -1; 591 diskStructure->secondaryLittleEndianTableSector = -1; 592 593 diskStructure->dataFirstSector = 594 diskStructure->primaryBigEndianTableSector + pathTableSectors; 595 if (diskStructure->verbose_level > 0) 596 printf("cd9660_makefs: Path table conversion complete. " 597 "Each table is %i bytes, or %" PRIu64 " sectors.\n", 598 diskStructure->pathTableLength, pathTableSectors); 599 600 startoffset = diskStructure->sectorSize*diskStructure->dataFirstSector; 601 602 totalSpace = cd9660_compute_offsets(diskStructure, real_root, startoffset); 603 604 diskStructure->totalSectors = diskStructure->dataFirstSector + 605 CD9660_BLOCKS(diskStructure->sectorSize, totalSpace); 606 607 /* Disabled until pass 1 is done */ 608 if (diskStructure->rock_ridge_enabled) { 609 diskStructure->susp_continuation_area_start_sector = 610 diskStructure->totalSectors; 611 diskStructure->totalSectors += 612 CD9660_BLOCKS(diskStructure->sectorSize, 613 diskStructure->susp_continuation_area_size); 614 cd9660_susp_finalize(diskStructure, diskStructure->rootNode); 615 } 616 617 618 cd9660_finalize_PVD(diskStructure); 619 620 /* Add padding sectors, just for testing purposes right now */ 621 /* diskStructure->totalSectors+=150; */ 622 623 /* Debugging output */ 624 if (diskStructure->verbose_level > 0) { 625 printf("cd9660_makefs: Sectors 0-15 reserved\n"); 626 printf("cd9660_makefs: Primary path tables starts in sector %" 627 PRId64 "\n", diskStructure->primaryLittleEndianTableSector); 628 printf("cd9660_makefs: File data starts in sector %" 629 PRId64 "\n", diskStructure->dataFirstSector); 630 printf("cd9660_makefs: Total sectors: %" 631 PRId64 "\n", diskStructure->totalSectors); 632 } 633 634 /* 635 * Add padding sectors at the end 636 * TODO: Clean this up and separate padding 637 */ 638 if (diskStructure->include_padding_areas) 639 diskStructure->totalSectors += 150; 640 641 cd9660_write_image(diskStructure, image); 642 643 if (diskStructure->verbose_level > 1) { 644 debug_print_volume_descriptor_information(diskStructure); 645 debug_print_tree(diskStructure, real_root, 0); 646 debug_print_path_tree(real_root); 647 } 648 649 /* Clean up data structures */ 650 cd9660_free_structure(real_root); 651 652 if (diskStructure->verbose_level > 0) 653 printf("cd9660_makefs: done\n"); 654 } 655 656 /* Generic function pointer - implement later */ 657 typedef int (*cd9660node_func)(cd9660node *); 658 659 static void 660 cd9660_finalize_PVD(iso9660_disk *diskStructure) 661 { 662 time_t tim; 663 unsigned char *temp; 664 665 /* Copy the root directory record */ 666 temp = (unsigned char *) &diskStructure->primaryDescriptor; 667 668 /* root should be a fixed size of 34 bytes since it has no name */ 669 memcpy(diskStructure->primaryDescriptor.root_directory_record, 670 diskStructure->rootNode->dot_record->isoDirRecord, 34); 671 672 /* In RRIP, this might be longer than 34 */ 673 diskStructure->primaryDescriptor.root_directory_record[0] = 34; 674 675 /* Set up all the important numbers in the PVD */ 676 cd9660_bothendian_dword(diskStructure->totalSectors, 677 (unsigned char *)diskStructure->primaryDescriptor.volume_space_size); 678 cd9660_bothendian_word(1, 679 (unsigned char *)diskStructure->primaryDescriptor.volume_set_size); 680 cd9660_bothendian_word(1, 681 (unsigned char *) 682 diskStructure->primaryDescriptor.volume_sequence_number); 683 cd9660_bothendian_word(diskStructure->sectorSize, 684 (unsigned char *) 685 diskStructure->primaryDescriptor.logical_block_size); 686 cd9660_bothendian_dword(diskStructure->pathTableLength, 687 (unsigned char *)diskStructure->primaryDescriptor.path_table_size); 688 689 cd9660_731(diskStructure->primaryLittleEndianTableSector, 690 (u_char *)diskStructure->primaryDescriptor.type_l_path_table); 691 cd9660_732(diskStructure->primaryBigEndianTableSector, 692 (u_char *)diskStructure->primaryDescriptor.type_m_path_table); 693 694 diskStructure->primaryDescriptor.file_structure_version[0] = 1; 695 696 /* Pad all strings with spaces instead of nulls */ 697 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.volume_id, 32); 698 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.system_id, 32); 699 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.volume_set_id, 700 128); 701 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.publisher_id, 702 128); 703 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.preparer_id, 704 128); 705 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.application_id, 706 128); 707 cd9660_pad_string_spaces( 708 diskStructure->primaryDescriptor.copyright_file_id, 37); 709 cd9660_pad_string_spaces( 710 diskStructure->primaryDescriptor.abstract_file_id, 37); 711 cd9660_pad_string_spaces( 712 diskStructure->primaryDescriptor.bibliographic_file_id, 37); 713 714 /* Setup dates */ 715 time(&tim); 716 cd9660_time_8426( 717 (unsigned char *)diskStructure->primaryDescriptor.creation_date, 718 tim); 719 cd9660_time_8426( 720 (unsigned char *)diskStructure->primaryDescriptor.modification_date, 721 tim); 722 723 /* 724 cd9660_set_date(diskStructure->primaryDescriptor.expiration_date, now); 725 */ 726 727 memset(diskStructure->primaryDescriptor.expiration_date, '0' ,17); 728 cd9660_time_8426( 729 (unsigned char *)diskStructure->primaryDescriptor.effective_date, 730 tim); 731 } 732 733 static void 734 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record, 735 u_char ext_attr_length, u_char flags, 736 u_char name_len, const char * name) 737 { 738 record->ext_attr_length[0] = ext_attr_length; 739 record->flags[0] = ISO_FLAG_CLEAR | flags; 740 record->file_unit_size[0] = 0; 741 record->interleave[0] = 0; 742 cd9660_bothendian_word(1, record->volume_sequence_number); 743 record->name_len[0] = name_len; 744 memset(record->name, '\0', sizeof (record->name)); 745 memcpy(record->name, name, name_len); 746 record->length[0] = 33 + name_len; 747 748 /* Todo : better rounding */ 749 record->length[0] += (record->length[0] & 1) ? 1 : 0; 750 } 751 752 static void 753 cd9660_setup_root_node(iso9660_disk *diskStructure) 754 { 755 cd9660_populate_iso_dir_record(diskStructure->rootNode->isoDirRecord, 756 0, ISO_FLAG_DIRECTORY, 1, "\0"); 757 758 } 759 760 /*********** SUPPORT FUNCTIONS ***********/ 761 static int 762 cd9660_setup_volume_descriptors(iso9660_disk *diskStructure) 763 { 764 /* Boot volume descriptor should come second */ 765 int sector = 16; 766 /* For now, a fixed 2 : PVD and terminator */ 767 volume_descriptor *temp, *t; 768 769 /* Set up the PVD */ 770 temp = emalloc(sizeof(*temp)); 771 temp->volumeDescriptorData = 772 (unsigned char *)&diskStructure->primaryDescriptor; 773 temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD; 774 temp->volumeDescriptorData[6] = 1; 775 temp->sector = sector; 776 memcpy(temp->volumeDescriptorData + 1, 777 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 778 diskStructure->firstVolumeDescriptor = temp; 779 780 sector++; 781 /* Set up boot support if enabled. BVD must reside in sector 17 */ 782 if (diskStructure->is_bootable) { 783 t = emalloc(sizeof(*t)); 784 t->volumeDescriptorData = ecalloc(1, 2048); 785 temp->next = t; 786 temp = t; 787 t->sector = 17; 788 if (diskStructure->verbose_level > 0) 789 printf("Setting up boot volume descriptor\n"); 790 cd9660_setup_boot_volume_descriptor(diskStructure, t); 791 sector++; 792 } 793 794 /* Set up the terminator */ 795 t = emalloc(sizeof(*t)); 796 t->volumeDescriptorData = ecalloc(1, 2048); 797 temp->next = t; 798 t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR; 799 t->next = 0; 800 t->volumeDescriptorData[6] = 1; 801 t->sector = sector; 802 memcpy(t->volumeDescriptorData + 1, 803 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 804 805 sector++; 806 return sector; 807 } 808 809 #if 0 810 /* 811 * Populate EAR at some point. Not required, but is used by NetBSD's 812 * cd9660 support 813 */ 814 static int 815 cd9660_fill_extended_attribute_record(cd9660node *node) 816 { 817 node->isoExtAttributes = emalloc(sizeof(*node->isoExtAttributes)); 818 return 1; 819 } 820 #endif 821 822 static int 823 cd9660_translate_node_common(iso9660_disk *diskStructure, cd9660node *newnode) 824 { 825 time_t tim; 826 int test; 827 u_char flag; 828 char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING]; 829 830 /* Now populate the isoDirRecord structure */ 831 memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING); 832 833 test = cd9660_convert_filename(diskStructure, newnode->node->name, 834 temp, !(S_ISDIR(newnode->node->type))); 835 836 flag = ISO_FLAG_CLEAR; 837 if (S_ISDIR(newnode->node->type)) 838 flag |= ISO_FLAG_DIRECTORY; 839 840 cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0, 841 flag, strlen(temp), temp); 842 843 /* Set the various dates */ 844 845 /* If we want to use the current date and time */ 846 time(&tim); 847 848 cd9660_time_915(newnode->isoDirRecord->date, tim); 849 850 cd9660_bothendian_dword(newnode->fileDataLength, 851 newnode->isoDirRecord->size); 852 /* If the file is a link, we want to set the size to 0 */ 853 if (S_ISLNK(newnode->node->type)) 854 newnode->fileDataLength = 0; 855 856 return 1; 857 } 858 859 /* 860 * Translate fsnode to cd9660node 861 * Translate filenames and other metadata, including dates, sizes, 862 * permissions, etc 863 * @param struct fsnode * The node generated by makefs 864 * @param struct cd9660node * The intermediate node to be written to 865 * @returns int 0 on failure, 1 on success 866 */ 867 static int 868 cd9660_translate_node(iso9660_disk *diskStructure, fsnode *node, 869 cd9660node *newnode) 870 { 871 if (node == NULL) { 872 if (diskStructure->verbose_level > 0) 873 printf("cd9660_translate_node: NULL node passed, " 874 "returning\n"); 875 return 0; 876 } 877 newnode->isoDirRecord = emalloc(sizeof(*newnode->isoDirRecord)); 878 /* Set the node pointer */ 879 newnode->node = node; 880 881 /* Set the size */ 882 if (!(S_ISDIR(node->type))) 883 newnode->fileDataLength = node->inode->st.st_size; 884 885 if (cd9660_translate_node_common(diskStructure, newnode) == 0) 886 return 0; 887 888 /* Finally, overwrite some of the values that are set by default */ 889 cd9660_time_915(newnode->isoDirRecord->date, node->inode->st.st_mtime); 890 891 return 1; 892 } 893 894 /* 895 * Compares two ISO filenames 896 * @param const char * The first file name 897 * @param const char * The second file name 898 * @returns : -1 if first is less than second, 0 if they are the same, 1 if 899 * the second is greater than the first 900 */ 901 static int 902 cd9660_compare_filename(const char *first, const char *second) 903 { 904 /* 905 * This can be made more optimal once it has been tested 906 * (the extra character, for example, is for testing) 907 */ 908 909 int p1 = 0; 910 int p2 = 0; 911 char c1, c2; 912 /* First, on the filename */ 913 914 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1 915 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) { 916 c1 = first[p1]; 917 c2 = second[p2]; 918 if (c1 == '.' && c2 =='.') 919 break; 920 else if (c1 == '.') { 921 p2++; 922 c1 = ' '; 923 } else if (c2 == '.') { 924 p1++; 925 c2 = ' '; 926 } else { 927 p1++; 928 p2++; 929 } 930 931 if (c1 < c2) 932 return -1; 933 else if (c1 > c2) { 934 return 1; 935 } 936 } 937 938 if (first[p1] == '.' && second[p2] == '.') { 939 p1++; 940 p2++; 941 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1 942 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) { 943 c1 = first[p1]; 944 c2 = second[p2]; 945 if (c1 == ';' && c2 == ';') 946 break; 947 else if (c1 == ';') { 948 p2++; 949 c1 = ' '; 950 } else if (c2 == ';') { 951 p1++; 952 c2 = ' '; 953 } else { 954 p1++; 955 p2++; 956 } 957 958 if (c1 < c2) 959 return -1; 960 else if (c1 > c2) 961 return 1; 962 } 963 } 964 return 0; 965 } 966 967 /* 968 * Insert a node into list with ISO sorting rules 969 * @param cd9660node * The head node of the list 970 * @param cd9660node * The node to be inserted 971 */ 972 static void 973 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new) 974 { 975 int compare; 976 cd9660node *cn; 977 struct cd9660_children_head *head = &parent->cn_children; 978 979 /* TODO: Optimize? */ 980 cn_new->parent = parent; 981 982 /* 983 * first will either be 0, the . or the .. 984 * if . or .., this means no other entry may be written before first 985 * if 0, the new node may be inserted at the head 986 */ 987 988 TAILQ_FOREACH(cn, head, cn_next_child) { 989 /* 990 * Dont insert a node twice - 991 * that would cause an infinite loop 992 */ 993 if (cn_new == cn) 994 return; 995 996 compare = cd9660_compare_filename(cn_new->isoDirRecord->name, 997 cn->isoDirRecord->name); 998 999 if (compare == 0) 1000 compare = cd9660_compare_filename(cn_new->node->name, 1001 cn->node->name); 1002 1003 if (compare < 0) 1004 break; 1005 } 1006 if (cn == NULL) 1007 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child); 1008 else 1009 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child); 1010 } 1011 1012 /* 1013 * Called After cd9660_sorted_child_insert 1014 * handles file collisions by suffixing each filname with ~n 1015 * where n represents the files respective place in the ordering 1016 */ 1017 static int 1018 cd9660_handle_collisions(iso9660_disk *diskStructure, cd9660node *colliding, 1019 int past) 1020 { 1021 cd9660node *iter, *next, *prev; 1022 int skip; 1023 int delete_chars = 0; 1024 int temp_past = past; 1025 int temp_skip; 1026 int flag = 0; 1027 cd9660node *end_of_range; 1028 1029 for (iter = TAILQ_FIRST(&colliding->cn_children); 1030 iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) { 1031 if (strcmp(iter->isoDirRecord->name, 1032 next->isoDirRecord->name) != 0) { 1033 iter = TAILQ_NEXT(iter, cn_next_child); 1034 continue; 1035 } 1036 flag = 1; 1037 temp_skip = skip = cd9660_count_collisions(iter); 1038 end_of_range = iter; 1039 while (temp_skip > 0) { 1040 temp_skip--; 1041 end_of_range = TAILQ_NEXT(end_of_range, cn_next_child); 1042 } 1043 temp_past = past; 1044 while (temp_past > 0) { 1045 if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL) 1046 end_of_range = next; 1047 else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL) 1048 iter = prev; 1049 else 1050 delete_chars++; 1051 temp_past--; 1052 } 1053 skip += past; 1054 iter = cd9660_rename_filename(diskStructure, iter, skip, 1055 delete_chars); 1056 } 1057 return flag; 1058 } 1059 1060 1061 static cd9660node * 1062 cd9660_rename_filename(iso9660_disk *diskStructure, cd9660node *iter, int num, 1063 int delete_chars) 1064 { 1065 int i = 0; 1066 int numbts, dot, semi, digit, digits, temp, powers, multiplier, count; 1067 char *naming; 1068 int maxlength; 1069 char *tmp; 1070 1071 if (diskStructure->verbose_level > 0) 1072 printf("Rename_filename called\n"); 1073 1074 /* TODO : A LOT of chanes regarding 8.3 filenames */ 1075 if (diskStructure->isoLevel == 1) 1076 maxlength = 8; 1077 else if (diskStructure->isoLevel == 2) 1078 maxlength = 31; 1079 else 1080 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION; 1081 1082 tmp = emalloc(ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1083 1084 while (i < num) { 1085 powers = 1; 1086 count = 0; 1087 digits = 1; 1088 multiplier = 1; 1089 while (((int)(i / powers) ) >= 10) { 1090 digits++; 1091 powers = powers * 10; 1092 } 1093 1094 naming = iter->o_name; 1095 1096 /* 1097 while ((*naming != '.') && (*naming != ';')) { 1098 naming++; 1099 count++; 1100 } 1101 */ 1102 1103 dot = -1; 1104 semi = -1; 1105 while (count < maxlength) { 1106 if (*naming == '.') 1107 dot = count; 1108 else if (*naming == ';') { 1109 semi = count; 1110 break; 1111 } 1112 naming++; 1113 count++; 1114 } 1115 1116 if ((count + digits) < maxlength) 1117 numbts = count; 1118 else 1119 numbts = maxlength - (digits); 1120 numbts -= delete_chars; 1121 1122 /* 8.3 rules - keep the extension, add before the dot */ 1123 1124 /* 1125 * This code makes a bunch of assumptions. 1126 * See if you can spot them all :) 1127 */ 1128 1129 /* 1130 if (diskStructure->isoLevel == 1) { 1131 numbts = 8 - digits - delete_chars; 1132 if (dot < 0) { 1133 1134 } else { 1135 if (dot < 8) { 1136 memmove(&tmp[numbts],&tmp[dot],4); 1137 } 1138 } 1139 } 1140 */ 1141 1142 /* (copying just the filename before the '.' */ 1143 memcpy(tmp, (iter->o_name), numbts); 1144 1145 /* adding the appropriate number following the name */ 1146 temp = i; 1147 while (digits > 0) { 1148 digit = (int)(temp / powers); 1149 temp = temp - digit * powers; 1150 sprintf(&tmp[numbts] , "%d", digit); 1151 digits--; 1152 numbts++; 1153 powers = powers / 10; 1154 } 1155 1156 while ((*naming != ';') && (numbts < maxlength)) { 1157 tmp[numbts] = (*naming); 1158 naming++; 1159 numbts++; 1160 } 1161 1162 tmp[numbts] = ';'; 1163 tmp[numbts+1] = '1'; 1164 tmp[numbts+2] = '\0'; 1165 1166 /* 1167 * now tmp has exactly the identifier 1168 * we want so we'll copy it back to record 1169 */ 1170 memcpy((iter->isoDirRecord->name), tmp, numbts + 3); 1171 1172 iter = TAILQ_NEXT(iter, cn_next_child); 1173 i++; 1174 } 1175 1176 free(tmp); 1177 return iter; 1178 } 1179 1180 /* Todo: Figure out why these functions are nec. */ 1181 static void 1182 cd9660_copy_filenames(iso9660_disk *diskStructure, cd9660node *node) 1183 { 1184 cd9660node *cn; 1185 1186 if (TAILQ_EMPTY(&node->cn_children)) 1187 return; 1188 1189 if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) { 1190 debug_print_tree(diskStructure, diskStructure->rootNode, 0); 1191 exit(1); 1192 } 1193 1194 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1195 cd9660_copy_filenames(diskStructure, cn); 1196 memcpy(cn->o_name, cn->isoDirRecord->name, 1197 ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1198 } 1199 } 1200 1201 static void 1202 cd9660_sorting_nodes(cd9660node *node) 1203 { 1204 cd9660node *cn; 1205 1206 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) 1207 cd9660_sorting_nodes(cn); 1208 cd9660_sort_nodes(node); 1209 } 1210 1211 /* XXX Bubble sort. */ 1212 static void 1213 cd9660_sort_nodes(cd9660node *node) 1214 { 1215 cd9660node *cn, *next; 1216 1217 do { 1218 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1219 if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL) 1220 return; 1221 else if (strcmp(next->isoDirRecord->name, 1222 cn->isoDirRecord->name) >= 0) 1223 continue; 1224 TAILQ_REMOVE(&node->cn_children, next, cn_next_child); 1225 TAILQ_INSERT_BEFORE(cn, next, cn_next_child); 1226 break; 1227 } 1228 } while (cn != NULL); 1229 } 1230 1231 static int 1232 cd9660_count_collisions(cd9660node *copy) 1233 { 1234 int count = 0; 1235 cd9660node *iter, *next; 1236 1237 for (iter = copy; 1238 (next = TAILQ_NEXT(iter, cn_next_child)) != NULL; 1239 iter = next) { 1240 if (cd9660_compare_filename(iter->isoDirRecord->name, 1241 next->isoDirRecord->name) == 0) 1242 count++; 1243 else 1244 return count; 1245 } 1246 #if 0 1247 if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) { 1248 printf("cd9660_recurse_on_collision: count is %i \n", count); 1249 compare = cd9660_compare_filename(iter->isoDirRecord->name, 1250 next->isoDirRecord->name); 1251 if (compare == 0) { 1252 count++; 1253 return cd9660_recurse_on_collision(next, count); 1254 } else 1255 return count; 1256 } 1257 #endif 1258 return count; 1259 } 1260 1261 static cd9660node * 1262 cd9660_rrip_move_directory(iso9660_disk *diskStructure, cd9660node *dir) 1263 { 1264 char newname[9]; 1265 cd9660node *tfile; 1266 1267 /* 1268 * This function needs to: 1269 * 1) Create an empty virtual file in place of the old directory 1270 * 2) Point the virtual file to the new directory 1271 * 3) Point the relocated directory to its old parent 1272 * 4) Move the directory specified by dir into rr_moved_dir, 1273 * and rename it to "diskStructure->rock_ridge_move_count" (as a string) 1274 */ 1275 1276 /* First see if the moved directory even exists */ 1277 if (diskStructure->rr_moved_dir == NULL) { 1278 diskStructure->rr_moved_dir = cd9660_create_directory( 1279 diskStructure, ISO_RRIP_DEFAULT_MOVE_DIR_NAME, 1280 diskStructure->rootNode, dir); 1281 if (diskStructure->rr_moved_dir == NULL) 1282 return 0; 1283 } 1284 1285 /* Create a file with the same ORIGINAL name */ 1286 tfile = cd9660_create_file(diskStructure, dir->node->name, dir->parent, 1287 dir); 1288 if (tfile == NULL) 1289 return NULL; 1290 1291 diskStructure->rock_ridge_move_count++; 1292 snprintf(newname, sizeof(newname), "%08i", 1293 diskStructure->rock_ridge_move_count); 1294 1295 /* Point to old parent */ 1296 dir->rr_real_parent = dir->parent; 1297 1298 /* Place the placeholder file */ 1299 if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) { 1300 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile, 1301 cn_next_child); 1302 } else { 1303 cd9660_sorted_child_insert(dir->rr_real_parent, tfile); 1304 } 1305 1306 /* Point to new parent */ 1307 dir->parent = diskStructure->rr_moved_dir; 1308 1309 /* Point the file to the moved directory */ 1310 tfile->rr_relocated = dir; 1311 1312 /* Actually move the directory */ 1313 cd9660_sorted_child_insert(diskStructure->rr_moved_dir, dir); 1314 1315 /* TODO: Inherit permissions / ownership (basically the entire inode) */ 1316 1317 /* Set the new name */ 1318 memset(dir->isoDirRecord->name, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1319 strncpy(dir->isoDirRecord->name, newname, 8); 1320 dir->isoDirRecord->length[0] = 34 + 8; 1321 dir->isoDirRecord->name_len[0] = 8; 1322 1323 return dir; 1324 } 1325 1326 static int 1327 cd9660_add_dot_records(iso9660_disk *diskStructure, cd9660node *root) 1328 { 1329 struct cd9660_children_head *head = &root->cn_children; 1330 cd9660node *cn; 1331 1332 TAILQ_FOREACH(cn, head, cn_next_child) { 1333 if ((cn->type & CD9660_TYPE_DIR) == 0) 1334 continue; 1335 /* Recursion first */ 1336 cd9660_add_dot_records(diskStructure, cn); 1337 } 1338 cd9660_create_special_directory(diskStructure, CD9660_TYPE_DOT, root); 1339 cd9660_create_special_directory(diskStructure, CD9660_TYPE_DOTDOT, 1340 root); 1341 return 1; 1342 } 1343 1344 /* 1345 * Convert node to cd9660 structure 1346 * This function is designed to be called recursively on the root node of 1347 * the filesystem 1348 * Lots of recursion going on here, want to make sure it is efficient 1349 * @param struct fsnode * The root node to be converted 1350 * @param struct cd9660* The parent node (should not be NULL) 1351 * @param int Current directory depth 1352 * @param int* Running count of the number of directories that are being created 1353 */ 1354 static void 1355 cd9660_convert_structure(iso9660_disk *diskStructure, fsnode *root, 1356 cd9660node *parent_node, int level, int *numDirectories, int *error) 1357 { 1358 fsnode *iterator = root; 1359 cd9660node *this_node; 1360 int working_level; 1361 int add; 1362 int flag = 0; 1363 int counter = 0; 1364 1365 /* 1366 * Newer, more efficient method, reduces recursion depth 1367 */ 1368 if (root == NULL) { 1369 warnx("%s: root is null\n", __func__); 1370 return; 1371 } 1372 1373 /* Test for an empty directory - makefs still gives us the . record */ 1374 if ((S_ISDIR(root->type)) && (root->name[0] == '.') 1375 && (root->name[1] == '\0')) { 1376 root = root->next; 1377 if (root == NULL) 1378 return; 1379 } 1380 if ((this_node = cd9660_allocate_cd9660node()) == NULL) { 1381 CD9660_MEM_ALLOC_ERROR(__func__); 1382 } 1383 1384 /* 1385 * To reduce the number of recursive calls, we will iterate over 1386 * the next pointers to the right. 1387 */ 1388 while (iterator != NULL) { 1389 add = 1; 1390 /* 1391 * Increment the directory count if this is a directory 1392 * Ignore "." entries. We will generate them later 1393 */ 1394 if (!S_ISDIR(iterator->type) || 1395 strcmp(iterator->name, ".") != 0) { 1396 1397 /* Translate the node, including its filename */ 1398 this_node->parent = parent_node; 1399 cd9660_translate_node(diskStructure, iterator, 1400 this_node); 1401 this_node->level = level; 1402 1403 if (S_ISDIR(iterator->type)) { 1404 (*numDirectories)++; 1405 this_node->type = CD9660_TYPE_DIR; 1406 working_level = level + 1; 1407 1408 /* 1409 * If at level 8, directory would be at 8 1410 * and have children at 9 which is not 1411 * allowed as per ISO spec 1412 */ 1413 if (level == 8) { 1414 if ((!diskStructure->allow_deep_trees) && 1415 (!diskStructure->rock_ridge_enabled)) { 1416 warnx("error: found entry " 1417 "with depth greater " 1418 "than 8."); 1419 (*error) = 1; 1420 return; 1421 } else if (diskStructure-> 1422 rock_ridge_enabled) { 1423 working_level = 3; 1424 /* 1425 * Moved directory is actually 1426 * at level 2. 1427 */ 1428 this_node->level = 1429 working_level - 1; 1430 if (cd9660_rrip_move_directory( 1431 diskStructure, 1432 this_node) == 0) { 1433 warnx("Failure in " 1434 "cd9660_rrip_" 1435 "move_directory" 1436 ); 1437 (*error) = 1; 1438 return; 1439 } 1440 add = 0; 1441 } 1442 } 1443 1444 /* Do the recursive call on the children */ 1445 if (iterator->child != 0) { 1446 cd9660_convert_structure(diskStructure, 1447 iterator->child, this_node, 1448 working_level, 1449 numDirectories, error); 1450 1451 if ((*error) == 1) { 1452 warnx("%s: Error on recursive " 1453 "call", __func__); 1454 return; 1455 } 1456 } 1457 1458 } else { 1459 /* Only directories should have children */ 1460 assert(iterator->child == NULL); 1461 1462 this_node->type = CD9660_TYPE_FILE; 1463 } 1464 1465 /* 1466 * Finally, do a sorted insert 1467 */ 1468 if (add) { 1469 cd9660_sorted_child_insert( 1470 parent_node, this_node); 1471 } 1472 1473 /*Allocate new temp_node */ 1474 if (iterator->next != 0) { 1475 this_node = cd9660_allocate_cd9660node(); 1476 if (this_node == NULL) 1477 CD9660_MEM_ALLOC_ERROR(__func__); 1478 } 1479 } 1480 iterator = iterator->next; 1481 } 1482 1483 /* cd9660_handle_collisions(first_node); */ 1484 1485 /* TODO: need cleanup */ 1486 cd9660_copy_filenames(diskStructure, parent_node); 1487 1488 do { 1489 flag = cd9660_handle_collisions(diskStructure, parent_node, 1490 counter); 1491 counter++; 1492 cd9660_sorting_nodes(parent_node); 1493 } while ((flag == 1) && (counter < 100)); 1494 } 1495 1496 /* 1497 * Clean up the cd9660node tree 1498 * This is designed to be called recursively on the root node 1499 * @param struct cd9660node *root The node to free 1500 * @returns void 1501 */ 1502 static void 1503 cd9660_free_structure(cd9660node *root) 1504 { 1505 cd9660node *cn; 1506 1507 while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) { 1508 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child); 1509 cd9660_free_structure(cn); 1510 } 1511 free(root); 1512 } 1513 1514 /* 1515 * Be a little more memory conservative: 1516 * instead of having the TAILQ_ENTRY as part of the cd9660node, 1517 * just create a temporary structure 1518 */ 1519 struct ptq_entry 1520 { 1521 TAILQ_ENTRY(ptq_entry) ptq; 1522 cd9660node *node; 1523 } *n; 1524 1525 #define PTQUEUE_NEW(n,s,r,t){\ 1526 n = emalloc(sizeof(struct s)); \ 1527 if (n == NULL) \ 1528 return r; \ 1529 n->node = t;\ 1530 } 1531 1532 /* 1533 * Generate the path tables 1534 * The specific implementation of this function is left as an exercise to the 1535 * programmer. It could be done recursively. Make sure you read how the path 1536 * table has to be laid out, it has levels. 1537 * @param struct iso9660_disk *disk The disk image 1538 * @returns int The number of built path tables (between 1 and 4), 0 on failure 1539 */ 1540 static int 1541 cd9660_generate_path_table(iso9660_disk *diskStructure) 1542 { 1543 cd9660node *cn, *dirNode = diskStructure->rootNode; 1544 cd9660node *last = dirNode; 1545 int pathTableSize = 0; /* computed as we go */ 1546 int counter = 1; /* root gets a count of 0 */ 1547 int parentRecNum = 0; /* root's parent is '0' */ 1548 1549 TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head; 1550 TAILQ_INIT(&pt_head); 1551 1552 PTQUEUE_NEW(n, ptq_entry, -1, diskStructure->rootNode); 1553 1554 /* Push the root node */ 1555 TAILQ_INSERT_HEAD(&pt_head, n, ptq); 1556 1557 /* Breadth-first traversal of file structure */ 1558 while (pt_head.tqh_first != 0) { 1559 n = pt_head.tqh_first; 1560 dirNode = n->node; 1561 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq); 1562 free(n); 1563 1564 /* Update the size */ 1565 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE 1566 + dirNode->isoDirRecord->name_len[0]+ 1567 (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1); 1568 /* includes the padding bit */ 1569 1570 dirNode->ptnumber=counter; 1571 if (dirNode != last) { 1572 last->ptnext = dirNode; 1573 dirNode->ptprev = last; 1574 } 1575 last = dirNode; 1576 1577 parentRecNum = 1; 1578 if (dirNode->parent != 0) 1579 parentRecNum = dirNode->parent->ptnumber; 1580 1581 /* Push children onto queue */ 1582 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) { 1583 /* 1584 * Dont add the DOT and DOTDOT types to the path 1585 * table. 1586 */ 1587 if ((cn->type != CD9660_TYPE_DOT) 1588 && (cn->type != CD9660_TYPE_DOTDOT)) { 1589 1590 if (S_ISDIR(cn->node->type)) { 1591 PTQUEUE_NEW(n, ptq_entry, -1, cn); 1592 TAILQ_INSERT_TAIL(&pt_head, n, ptq); 1593 } 1594 } 1595 } 1596 counter++; 1597 } 1598 return pathTableSize; 1599 } 1600 1601 void 1602 cd9660_compute_full_filename(cd9660node *node, char *buf) 1603 { 1604 int len; 1605 1606 len = CD9660MAXPATH + 1; 1607 len = snprintf(buf, len, "%s/%s/%s", node->node->root, 1608 node->node->path, node->node->name); 1609 if (len > CD9660MAXPATH) 1610 errx(1, "Pathname too long."); 1611 } 1612 1613 /* NEW filename conversion method */ 1614 typedef int(*cd9660_filename_conversion_functor)(iso9660_disk *, const char *, 1615 char *, int); 1616 1617 1618 /* 1619 * TODO: These two functions are almost identical. 1620 * Some code cleanup is possible here 1621 * 1622 * XXX bounds checking! 1623 */ 1624 static int 1625 cd9660_level1_convert_filename(iso9660_disk *diskStructure, const char *oldname, 1626 char *newname, int is_file) 1627 { 1628 /* 1629 * ISO 9660 : 10.1 1630 * File Name shall not contain more than 8 d or d1 characters 1631 * File Name Extension shall not contain more than 3 d or d1 characters 1632 * Directory Identifier shall not contain more than 8 d or d1 characters 1633 */ 1634 int namelen = 0; 1635 int extlen = 0; 1636 int found_ext = 0; 1637 1638 while (*oldname != '\0' && extlen < 3) { 1639 /* Handle period first, as it is special */ 1640 if (*oldname == '.') { 1641 if (found_ext) { 1642 *newname++ = '_'; 1643 extlen ++; 1644 } 1645 else { 1646 *newname++ = '.'; 1647 found_ext = 1; 1648 } 1649 } else { 1650 /* cut RISC OS file type off ISO name */ 1651 if (diskStructure->archimedes_enabled && 1652 *oldname == ',' && strlen(oldname) == 4) 1653 break; 1654 1655 /* Enforce 12.3 / 8 */ 1656 if (namelen == 8 && !found_ext) 1657 break; 1658 1659 if (islower((unsigned char)*oldname)) 1660 *newname++ = toupper((unsigned char)*oldname); 1661 else if (isupper((unsigned char)*oldname) 1662 || isdigit((unsigned char)*oldname)) 1663 *newname++ = *oldname; 1664 else 1665 *newname++ = '_'; 1666 1667 if (found_ext) 1668 extlen++; 1669 else 1670 namelen++; 1671 } 1672 oldname++; 1673 } 1674 if (is_file) { 1675 if (!found_ext && !diskStructure->omit_trailing_period) 1676 *newname++ = '.'; 1677 /* Add version */ 1678 sprintf(newname, ";%i", 1); 1679 } 1680 return namelen + extlen + found_ext; 1681 } 1682 1683 /* XXX bounds checking! */ 1684 static int 1685 cd9660_level2_convert_filename(iso9660_disk *diskStructure, const char *oldname, 1686 char *newname, int is_file) 1687 { 1688 /* 1689 * ISO 9660 : 7.5.1 1690 * File name : 0+ d or d1 characters 1691 * separator 1 (.) 1692 * File name extension : 0+ d or d1 characters 1693 * separator 2 (;) 1694 * File version number (5 characters, 1-32767) 1695 * 1 <= Sum of File name and File name extension <= 30 1696 */ 1697 int namelen = 0; 1698 int extlen = 0; 1699 int found_ext = 0; 1700 1701 while (*oldname != '\0' && namelen + extlen < 30) { 1702 /* Handle period first, as it is special */ 1703 if (*oldname == '.') { 1704 if (found_ext) { 1705 if (diskStructure->allow_multidot) { 1706 *newname++ = '.'; 1707 } else { 1708 *newname++ = '_'; 1709 } 1710 extlen ++; 1711 } 1712 else { 1713 *newname++ = '.'; 1714 found_ext = 1; 1715 } 1716 } else { 1717 /* cut RISC OS file type off ISO name */ 1718 if (diskStructure->archimedes_enabled && 1719 *oldname == ',' && strlen(oldname) == 4) 1720 break; 1721 1722 if (islower((unsigned char)*oldname)) 1723 *newname++ = toupper((unsigned char)*oldname); 1724 else if (isupper((unsigned char)*oldname) || 1725 isdigit((unsigned char)*oldname)) 1726 *newname++ = *oldname; 1727 else if (diskStructure->allow_multidot && 1728 *oldname == '.') { 1729 *newname++ = '.'; 1730 } else { 1731 *newname++ = '_'; 1732 } 1733 1734 if (found_ext) 1735 extlen++; 1736 else 1737 namelen++; 1738 } 1739 oldname ++; 1740 } 1741 if (is_file) { 1742 if (!found_ext && !diskStructure->omit_trailing_period) 1743 *newname++ = '.'; 1744 /* Add version */ 1745 sprintf(newname, ";%i", 1); 1746 } 1747 return namelen + extlen + found_ext; 1748 } 1749 1750 #if 0 1751 static int 1752 cd9660_joliet_convert_filename(iso9660_disk *diskStructure, const char *oldname, 1753 char *newname, int is_file) 1754 { 1755 /* TODO: implement later, move to cd9660_joliet.c ?? */ 1756 } 1757 #endif 1758 1759 1760 /* 1761 * Convert a file name to ISO compliant file name 1762 * @param char * oldname The original filename 1763 * @param char ** newname The new file name, in the appropriate character 1764 * set and of appropriate length 1765 * @param int 1 if file, 0 if directory 1766 * @returns int The length of the new string 1767 */ 1768 static int 1769 cd9660_convert_filename(iso9660_disk *diskStructure, const char *oldname, 1770 char *newname, int is_file) 1771 { 1772 /* NEW */ 1773 cd9660_filename_conversion_functor conversion_function = 0; 1774 if (diskStructure->isoLevel == 1) 1775 conversion_function = &cd9660_level1_convert_filename; 1776 else if (diskStructure->isoLevel == 2) 1777 conversion_function = &cd9660_level2_convert_filename; 1778 return (*conversion_function)(diskStructure, oldname, newname, is_file); 1779 } 1780 1781 int 1782 cd9660_compute_record_size(iso9660_disk *diskStructure, cd9660node *node) 1783 { 1784 int size = node->isoDirRecord->length[0]; 1785 1786 if (diskStructure->rock_ridge_enabled) 1787 size += node->susp_entry_size; 1788 size += node->su_tail_size; 1789 size += size & 1; /* Ensure length of record is even. */ 1790 assert(size <= 254); 1791 return size; 1792 } 1793 1794 static void 1795 cd9660_populate_dot_records(iso9660_disk *diskStructure, cd9660node *node) 1796 { 1797 node->dot_record->fileDataSector = node->fileDataSector; 1798 memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34); 1799 node->dot_record->isoDirRecord->name_len[0] = 1; 1800 node->dot_record->isoDirRecord->name[0] = 0; 1801 node->dot_record->isoDirRecord->name[1] = 0; 1802 node->dot_record->isoDirRecord->length[0] = 34; 1803 node->dot_record->fileRecordSize = 1804 cd9660_compute_record_size(diskStructure, node->dot_record); 1805 1806 if (node == diskStructure->rootNode) { 1807 node->dot_dot_record->fileDataSector = node->fileDataSector; 1808 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord, 1809 34); 1810 } else { 1811 node->dot_dot_record->fileDataSector = 1812 node->parent->fileDataSector; 1813 memcpy(node->dot_dot_record->isoDirRecord, 1814 node->parent->isoDirRecord,34); 1815 } 1816 node->dot_dot_record->isoDirRecord->name_len[0] = 1; 1817 node->dot_dot_record->isoDirRecord->name[0] = 1; 1818 node->dot_dot_record->isoDirRecord->name[1] = 0; 1819 node->dot_dot_record->isoDirRecord->length[0] = 34; 1820 node->dot_dot_record->fileRecordSize = 1821 cd9660_compute_record_size(diskStructure, node->dot_dot_record); 1822 } 1823 1824 /* 1825 * @param struct cd9660node *node The node 1826 * @param int The offset (in bytes) - SHOULD align to the beginning of a sector 1827 * @returns int The total size of files and directory entries (should be 1828 * a multiple of sector size) 1829 */ 1830 static int64_t 1831 cd9660_compute_offsets(iso9660_disk *diskStructure, cd9660node *node, 1832 int64_t startOffset) 1833 { 1834 /* 1835 * This function needs to compute the size of directory records and 1836 * runs, file lengths, and set the appropriate variables both in 1837 * cd9660node and isoDirEntry 1838 */ 1839 int64_t used_bytes = 0; 1840 int64_t current_sector_usage = 0; 1841 cd9660node *child; 1842 fsinode *inode; 1843 int64_t r; 1844 1845 assert(node != NULL); 1846 1847 1848 /* 1849 * NOTE : There needs to be some special case detection for 1850 * the "real root" node, since for it, node->node is undefined 1851 */ 1852 1853 node->fileDataSector = -1; 1854 1855 if (node->type & CD9660_TYPE_DIR) { 1856 node->fileRecordSize = cd9660_compute_record_size( 1857 diskStructure, node); 1858 /*Set what sector this directory starts in*/ 1859 node->fileDataSector = 1860 CD9660_BLOCKS(diskStructure->sectorSize,startOffset); 1861 1862 cd9660_bothendian_dword(node->fileDataSector, 1863 node->isoDirRecord->extent); 1864 1865 /* 1866 * First loop over children, need to know the size of 1867 * their directory records 1868 */ 1869 node->fileSectorsUsed = 1; 1870 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) { 1871 node->fileDataLength += 1872 cd9660_compute_record_size(diskStructure, child); 1873 if ((cd9660_compute_record_size(diskStructure, child) + 1874 current_sector_usage) >= 1875 diskStructure->sectorSize) { 1876 current_sector_usage = 0; 1877 node->fileSectorsUsed++; 1878 } 1879 1880 current_sector_usage += 1881 cd9660_compute_record_size(diskStructure, child); 1882 } 1883 1884 cd9660_bothendian_dword(node->fileSectorsUsed * 1885 diskStructure->sectorSize,node->isoDirRecord->size); 1886 1887 /* 1888 * This should point to the sector after the directory 1889 * record (or, the first byte in that sector) 1890 */ 1891 used_bytes += node->fileSectorsUsed * diskStructure->sectorSize; 1892 1893 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1894 child != NULL; child = TAILQ_NEXT(child, cn_next_child)) { 1895 /* Directories need recursive call */ 1896 if (S_ISDIR(child->node->type)) { 1897 r = cd9660_compute_offsets(diskStructure, child, 1898 used_bytes + startOffset); 1899 1900 if (r != -1) 1901 used_bytes += r; 1902 else 1903 return -1; 1904 } 1905 } 1906 1907 /* Explicitly set the . and .. records */ 1908 cd9660_populate_dot_records(diskStructure, node); 1909 1910 /* Finally, do another iteration to write the file data*/ 1911 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1912 child != NULL; 1913 child = TAILQ_NEXT(child, cn_next_child)) { 1914 /* Files need extent set */ 1915 if (S_ISDIR(child->node->type)) 1916 continue; 1917 child->fileRecordSize = 1918 cd9660_compute_record_size(diskStructure, child); 1919 1920 child->fileSectorsUsed = 1921 CD9660_BLOCKS(diskStructure->sectorSize, 1922 child->fileDataLength); 1923 1924 inode = child->node->inode; 1925 if ((inode->flags & FI_ALLOCATED) == 0) { 1926 inode->ino = 1927 CD9660_BLOCKS(diskStructure->sectorSize, 1928 used_bytes + startOffset); 1929 inode->flags |= FI_ALLOCATED; 1930 used_bytes += child->fileSectorsUsed * 1931 diskStructure->sectorSize; 1932 } else { 1933 INODE_WARNX(("%s: already allocated inode %d " 1934 "data sectors at %" PRIu32, __func__, 1935 (int)inode->st.st_ino, inode->ino)); 1936 } 1937 child->fileDataSector = inode->ino; 1938 cd9660_bothendian_dword(child->fileDataSector, 1939 child->isoDirRecord->extent); 1940 } 1941 } 1942 1943 return used_bytes; 1944 } 1945 1946 #if 0 1947 /* Might get rid of this func */ 1948 static int 1949 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file) 1950 { 1951 to->node->inode->st.st_dev = 0; 1952 to->node->inode->st.st_ino = 0; 1953 to->node->inode->st.st_size = 0; 1954 to->node->inode->st.st_blksize = from->node->inode->st.st_blksize; 1955 to->node->inode->st.st_atime = from->node->inode->st.st_atime; 1956 to->node->inode->st.st_mtime = from->node->inode->st.st_mtime; 1957 to->node->inode->st.st_ctime = from->node->inode->st.st_ctime; 1958 to->node->inode->st.st_uid = from->node->inode->st.st_uid; 1959 to->node->inode->st.st_gid = from->node->inode->st.st_gid; 1960 to->node->inode->st.st_mode = from->node->inode->st.st_mode; 1961 /* Clear out type */ 1962 to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT); 1963 if (file) 1964 to->node->inode->st.st_mode |= S_IFREG; 1965 else 1966 to->node->inode->st.st_mode |= S_IFDIR; 1967 return 1; 1968 } 1969 #endif 1970 1971 static cd9660node * 1972 cd9660_create_virtual_entry(iso9660_disk *diskStructure, const char *name, 1973 cd9660node *parent, int file, int insert) 1974 { 1975 cd9660node *temp; 1976 fsnode * tfsnode; 1977 1978 assert(parent != NULL); 1979 1980 temp = cd9660_allocate_cd9660node(); 1981 if (temp == NULL) 1982 return NULL; 1983 1984 tfsnode = emalloc(sizeof(*tfsnode)); 1985 tfsnode->name = estrdup(name); 1986 temp->isoDirRecord = emalloc(sizeof(*temp->isoDirRecord)); 1987 1988 cd9660_convert_filename(diskStructure, tfsnode->name, 1989 temp->isoDirRecord->name, file); 1990 1991 temp->node = tfsnode; 1992 temp->parent = parent; 1993 1994 if (insert) { 1995 if (temp->parent != NULL) { 1996 temp->level = temp->parent->level + 1; 1997 if (!TAILQ_EMPTY(&temp->parent->cn_children)) 1998 cd9660_sorted_child_insert(temp->parent, temp); 1999 else 2000 TAILQ_INSERT_HEAD(&temp->parent->cn_children, 2001 temp, cn_next_child); 2002 } 2003 } 2004 2005 if (parent->node != NULL) { 2006 tfsnode->type = parent->node->type; 2007 } 2008 2009 /* Clear out file type bits */ 2010 tfsnode->type &= ~(S_IFMT); 2011 if (file) 2012 tfsnode->type |= S_IFREG; 2013 else 2014 tfsnode->type |= S_IFDIR; 2015 2016 /* Indicate that there is no spec entry (inode) */ 2017 tfsnode->flags &= ~(FSNODE_F_HASSPEC); 2018 #if 0 2019 cd9660_copy_stat_info(parent, temp, file); 2020 #endif 2021 return temp; 2022 } 2023 2024 static cd9660node * 2025 cd9660_create_file(iso9660_disk *diskStructure, const char *name, 2026 cd9660node *parent, cd9660node *me) 2027 { 2028 cd9660node *temp; 2029 2030 temp = cd9660_create_virtual_entry(diskStructure, name, parent, 1, 1); 2031 if (temp == NULL) 2032 return NULL; 2033 2034 temp->fileDataLength = 0; 2035 2036 temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL; 2037 2038 temp->node->inode = ecalloc(1, sizeof(*temp->node->inode)); 2039 *temp->node->inode = *me->node->inode; 2040 2041 if (cd9660_translate_node_common(diskStructure, temp) == 0) 2042 return NULL; 2043 return temp; 2044 } 2045 2046 /* 2047 * Create a new directory which does not exist on disk 2048 * @param const char * name The name to assign to the directory 2049 * @param const char * parent Pointer to the parent directory 2050 * @returns cd9660node * Pointer to the new directory 2051 */ 2052 static cd9660node * 2053 cd9660_create_directory(iso9660_disk *diskStructure, const char *name, 2054 cd9660node *parent, cd9660node *me) 2055 { 2056 cd9660node *temp; 2057 2058 temp = cd9660_create_virtual_entry(diskStructure, name, parent, 0, 1); 2059 if (temp == NULL) 2060 return NULL; 2061 temp->node->type |= S_IFDIR; 2062 2063 temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL; 2064 2065 temp->node->inode = ecalloc(1, sizeof(*temp->node->inode)); 2066 *temp->node->inode = *me->node->inode; 2067 2068 if (cd9660_translate_node_common(diskStructure, temp) == 0) 2069 return NULL; 2070 return temp; 2071 } 2072 2073 static cd9660node * 2074 cd9660_create_special_directory(iso9660_disk *diskStructure, u_char type, 2075 cd9660node *parent) 2076 { 2077 cd9660node *temp, *first; 2078 char na[2]; 2079 2080 assert(parent != NULL); 2081 2082 if (type == CD9660_TYPE_DOT) 2083 na[0] = 0; 2084 else if (type == CD9660_TYPE_DOTDOT) 2085 na[0] = 1; 2086 else 2087 return 0; 2088 2089 na[1] = 0; 2090 if ((temp = cd9660_create_virtual_entry(diskStructure, na, parent, 2091 0, 0)) == NULL) 2092 return NULL; 2093 2094 temp->parent = parent; 2095 temp->type = type; 2096 temp->isoDirRecord->length[0] = 34; 2097 /* Dot record is always first */ 2098 if (type == CD9660_TYPE_DOT) { 2099 parent->dot_record = temp; 2100 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child); 2101 /* DotDot should be second */ 2102 } else if (type == CD9660_TYPE_DOTDOT) { 2103 parent->dot_dot_record = temp; 2104 /* 2105 * If the first child is the dot record, insert 2106 * this second. Otherwise, insert it at the head. 2107 */ 2108 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL || 2109 (first->type & CD9660_TYPE_DOT) == 0) { 2110 TAILQ_INSERT_HEAD(&parent->cn_children, temp, 2111 cn_next_child); 2112 } else { 2113 TAILQ_INSERT_AFTER(&parent->cn_children, first, temp, 2114 cn_next_child); 2115 } 2116 } 2117 2118 return temp; 2119 } 2120 2121 static int 2122 cd9660_add_generic_bootimage(iso9660_disk *diskStructure, const char *bootimage) 2123 { 2124 struct stat stbuf; 2125 2126 assert(bootimage != NULL); 2127 2128 if (*bootimage == '\0') { 2129 warnx("Error: Boot image must be a filename"); 2130 return 0; 2131 } 2132 2133 diskStructure->generic_bootimage = estrdup(bootimage); 2134 2135 /* Get information about the file */ 2136 if (lstat(diskStructure->generic_bootimage, &stbuf) == -1) 2137 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__, 2138 diskStructure->generic_bootimage); 2139 2140 if (stbuf.st_size > 32768) { 2141 warnx("Error: Boot image must be no greater than 32768 bytes"); 2142 return 0; 2143 } 2144 2145 if (diskStructure->verbose_level > 0) { 2146 printf("Generic boot image image has size %lld\n", 2147 (long long)stbuf.st_size); 2148 } 2149 2150 diskStructure->has_generic_bootimage = 1; 2151 2152 return 1; 2153 } 2154
Indexes created Mon Sep 22 13:09:51 GMT 2025