usr.sbin/makefs/cd9660.c

   1 /*      $NetBSD: cd9660.c,v 1.31 2011/08/06 23:25:19 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 #include <sys/cdefs.h>
  99 __FBSDID("$FreeBSD$");
 100
 101 #include <string.h>
 102 #include <ctype.h>
 103 #include <sys/param.h>
 104 #include <sys/queue.h>
 105
 106 #include "makefs.h"
 107 #include "cd9660.h"
 108 #include "cd9660/iso9660_rrip.h"
 109 #include "cd9660/cd9660_archimedes.h"
 110
 111 /*
 112  * Global variables
 113  */
 114 iso9660_disk diskStructure;
 115
 116 static void cd9660_finalize_PVD(void);
 117 static cd9660node *cd9660_allocate_cd9660node(void);
 118 static void cd9660_set_defaults(void);
 119 static int cd9660_arguments_set_string(const char *, const char *, int,
 120     char, char *);
 121 static void cd9660_populate_iso_dir_record(
 122     struct _iso_directory_record_cd9660 *, u_char, u_char, u_char,
 123     const char *);
 124 static void cd9660_setup_root_node(void);
 125 static int cd9660_setup_volume_descriptors(void);
 126 #if 0
 127 static int cd9660_fill_extended_attribute_record(cd9660node *);
 128 #endif
 129 static void cd9660_sort_nodes(cd9660node *);
 130 static int cd9660_translate_node_common(cd9660node *);
 131 static int cd9660_translate_node(fsnode *, cd9660node *);
 132 static int cd9660_compare_filename(const char *, const char *);
 133 static void cd9660_sorted_child_insert(cd9660node *, cd9660node *);
 134 static int cd9660_handle_collisions(cd9660node *, int);
 135 static cd9660node *cd9660_rename_filename(cd9660node *, int, int);
 136 static void cd9660_copy_filenames(cd9660node *);
 137 static void cd9660_sorting_nodes(cd9660node *);
 138 static int cd9660_count_collisions(cd9660node *);
 139 static cd9660node *cd9660_rrip_move_directory(cd9660node *);
 140 static int cd9660_add_dot_records(cd9660node *);
 141
 142 static void cd9660_convert_structure(fsnode *, cd9660node *, int,
 143     int *, int *);
 144 static void cd9660_free_structure(cd9660node *);
 145 static int cd9660_generate_path_table(void);
 146 static int cd9660_level1_convert_filename(const char *, char *, int);
 147 static int cd9660_level2_convert_filename(const char *, char *, int);
 148 #if 0
 149 static int cd9660_joliet_convert_filename(const char *, char *, int);
 150 #endif
 151 static int cd9660_convert_filename(const char *, char *, int);
 152 static void cd9660_populate_dot_records(cd9660node *);
 153 static int64_t cd9660_compute_offsets(cd9660node *, int64_t);
 154 #if 0
 155 static int cd9660_copy_stat_info(cd9660node *, cd9660node *, int);
 156 #endif
 157 static cd9660node *cd9660_create_virtual_entry(const char *, cd9660node *, int,
 158     int);
 159 static cd9660node *cd9660_create_file(const char *, cd9660node *, cd9660node *);
 160 static cd9660node *cd9660_create_directory(const char *, cd9660node *,
 161     cd9660node *);
 162 static cd9660node *cd9660_create_special_directory(u_char, cd9660node *);
 163
 164
 165 /*
 166  * Allocate and initalize a cd9660node
 167  * @returns struct cd9660node * Pointer to new node, or NULL on error
 168  */
 169 static cd9660node *
 170 cd9660_allocate_cd9660node(void)
 171 {
 172         cd9660node *temp;
 173
 174         if ((temp = calloc(1, sizeof(cd9660node))) == NULL)
 175                 err(EXIT_FAILURE, "%s: calloc", __func__);
 176         TAILQ_INIT(&temp->cn_children);
 177         temp->parent = temp->dot_record = temp->dot_dot_record = NULL;
 178         temp->ptnext = temp->ptprev = temp->ptlast = NULL;
 179         temp->node = NULL;
 180         temp->isoDirRecord = NULL;
 181         temp->isoExtAttributes = NULL;
 182         temp->rr_real_parent = temp->rr_relocated = NULL;
 183         temp->su_tail_data = NULL;
 184         return temp;
 185 }
 186
 187 int cd9660_defaults_set = 0;
 188
 189 /**
 190 * Set default values for cd9660 extension to makefs
 191 */
 192 static void
 193 cd9660_set_defaults(void)
 194 {
 195         /*Fix the sector size for now, though the spec allows for other sizes*/
 196         diskStructure.sectorSize = 2048;
 197
 198         /* Set up defaults in our own structure */
 199         diskStructure.verbose_level = 0;
 200         diskStructure.keep_bad_images = 0;
 201         diskStructure.follow_sym_links = 0;
 202         diskStructure.isoLevel = 2;
 203
 204         diskStructure.rock_ridge_enabled = 0;
 205         diskStructure.rock_ridge_renamed_dir_name = 0;
 206         diskStructure.rock_ridge_move_count = 0;
 207         diskStructure.rr_moved_dir = 0;
 208
 209         diskStructure.archimedes_enabled = 0;
 210         diskStructure.chrp_boot = 0;
 211
 212         diskStructure.include_padding_areas = 1;
 213
 214         /* Spec breaking functionality */
 215         diskStructure.allow_deep_trees =
 216             diskStructure.allow_start_dot =
 217             diskStructure.allow_max_name =
 218             diskStructure.allow_illegal_chars =
 219             diskStructure.allow_lowercase =
 220             diskStructure.allow_multidot =
 221             diskStructure.omit_trailing_period = 0;
 222
 223         /* Make sure the PVD is clear */
 224         memset(&diskStructure.primaryDescriptor, 0, 2048);
 225
 226         memset(diskStructure.primaryDescriptor.publisher_id,    0x20,128);
 227         memset(diskStructure.primaryDescriptor.preparer_id,     0x20,128);
 228         memset(diskStructure.primaryDescriptor.application_id,  0x20,128);
 229         memset(diskStructure.primaryDescriptor.copyright_file_id, 0x20,37);
 230         memset(diskStructure.primaryDescriptor.abstract_file_id, 0x20,37);
 231         memset(diskStructure.primaryDescriptor.bibliographic_file_id, 0x20,37);
 232
 233         strcpy(diskStructure.primaryDescriptor.system_id,"NetBSD");
 234
 235         cd9660_defaults_set = 1;
 236
 237         /* Boot support: Initially disabled */
 238         diskStructure.has_generic_bootimage = 0;
 239         diskStructure.generic_bootimage = NULL;
 240
 241         diskStructure.boot_image_directory = 0;
 242         /*memset(diskStructure.boot_descriptor, 0, 2048);*/
 243
 244         diskStructure.is_bootable = 0;
 245         TAILQ_INIT(&diskStructure.boot_images);
 246         LIST_INIT(&diskStructure.boot_entries);
 247 }
 248
 249 void
 250 cd9660_prep_opts(fsinfo_t *fsopts __unused)
 251 {
 252         cd9660_set_defaults();
 253 }
 254
 255 void
 256 cd9660_cleanup_opts(fsinfo_t *fsopts __unused)
 257 {
 258
 259 }
 260
 261 static int
 262 cd9660_arguments_set_string(const char *val, const char *fieldtitle, int length,
 263                             char testmode, char * dest)
 264 {
 265         int len, test;
 266
 267         if (val == NULL)
 268                 warnx("error: The %s requires a string argument", fieldtitle);
 269         else if ((len = strlen(val)) <= length) {
 270                 if (testmode == 'd')
 271                         test = cd9660_valid_d_chars(val);
 272                 else
 273                         test = cd9660_valid_a_chars(val);
 274                 if (test) {
 275                         memcpy(dest, val, len);
 276                         if (test == 2)
 277                                 cd9660_uppercase_characters(dest, len);
 278                         return 1;
 279                 } else
 280                         warnx("error: The %s must be composed of "
 281                               "%c-characters", fieldtitle, testmode);
 282         } else
 283                 warnx("error: The %s must be at most 32 characters long",
 284                     fieldtitle);
 285         return 0;
 286 }
 287
 288 /*
 289  * Command-line parsing function
 290  */
 291
 292 int
 293 cd9660_parse_opts(const char *option, fsinfo_t *fsopts)
 294 {
 295         char *var, *val;
 296         int     rv;
 297         /* Set up allowed options - integer options ONLY */
 298         option_t cd9660_options[] = {
 299                 { "l", &diskStructure.isoLevel, 1, 3, "ISO Level" },
 300                 { "isolevel", &diskStructure.isoLevel, 1, 3, "ISO Level" },
 301                 { "verbose",  &diskStructure.verbose_level, 0, 2,
 302                   "Turns on verbose output" },
 303                 { "v", &diskStructure.verbose_level, 0 , 2,
 304                   "Turns on verbose output"},
 305                 { .name = NULL }
 306         };
 307
 308         if (cd9660_defaults_set == 0)
 309                 cd9660_set_defaults();
 310
 311         /*
 312          * Todo : finish implementing this, and make a function that
 313          * parses them
 314          */
 315         /*
 316         string_option_t cd9660_string_options[] = {
 317                 { "L", "Label", &diskStructure.primaryDescriptor.volume_id, 1, 32, "Disk Label", ISO_STRING_FILTER_DCHARS },
 318                 { NULL }
 319         }
 320         */
 321
 322         assert(option != NULL);
 323
 324         if (debug & DEBUG_FS_PARSE_OPTS)
 325                 printf("cd9660_parse_opts: got `%s'\n", option);
 326
 327         if ((var = strdup(option)) == NULL)
 328                 err(1, "allocating memory for copy of option string");
 329         rv = 1;
 330
 331         val = strchr(var, '=');
 332         if (val != NULL)
 333                 *val++ = '\0';
 334
 335         /* First handle options with no parameters */
 336         if (strcmp(var, "h") == 0) {
 337                 diskStructure.displayHelp = 1;
 338                 rv = 1;
 339         } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "S", "follow-symlinks")) {
 340                 /* this is not handled yet */
 341                 diskStructure.follow_sym_links = 1;
 342                 rv = 1;
 343         } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "L", "label")) {
 344                 rv = cd9660_arguments_set_string(val, "Disk Label", 32, 'd',
 345                         diskStructure.primaryDescriptor.volume_id);
 346         } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "A", "applicationid")) {
 347                 rv = cd9660_arguments_set_string(val, "Application Identifier", 128, 'a',
 348                         diskStructure.primaryDescriptor.application_id);
 349         } else if(CD9660_IS_COMMAND_ARG_DUAL(var, "P", "publisher")) {
 350                 rv = cd9660_arguments_set_string(val, "Publisher Identifier",
 351                         128, 'a', diskStructure.primaryDescriptor.publisher_id);
 352         } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "p", "preparer")) {
 353                 rv = cd9660_arguments_set_string(val, "Preparer Identifier",
 354                     128, 'a', diskStructure.primaryDescriptor.preparer_id);
 355         } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "V", "volumeid")) {
 356                 rv = cd9660_arguments_set_string(val, "Volume Set Identifier",
 357                     128, 'a', diskStructure.primaryDescriptor.volume_set_id);
 358         /* Boot options */
 359         } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "B", "bootimage")) {
 360                 if (val == NULL)
 361                         warnx("error: The Boot Image parameter requires a valid boot information string");
 362                 else
 363                         rv = cd9660_add_boot_disk(val);
 364         } else if (CD9660_IS_COMMAND_ARG(var, "bootimagedir")) {
 365                 /*
 366                  * XXXfvdl this is unused.
 367                  */
 368                 if (val == NULL)
 369                         errx(1, "error: The Boot Image Directory parameter"
 370                              " requires a directory name\n");
 371                 else {
 372                         if ((diskStructure.boot_image_directory =
 373                              malloc(strlen(val) + 1)) == NULL) {
 374                                 CD9660_MEM_ALLOC_ERROR("cd9660_parse_opts");
 375                                 exit(1);
 376                         }
 377
 378                         /* BIG TODO: Add the max length function here */
 379                         cd9660_arguments_set_string(val, "Boot Image Directory",
 380                             12 , 'd', diskStructure.boot_image_directory);
 381                 }
 382         } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "G", "generic-bootimage")) {
 383                 if (val == NULL)
 384                         warnx("error: The Boot Image parameter requires a valid boot information string");
 385                 else
 386                         rv = cd9660_add_generic_bootimage(val);
 387         } else if (CD9660_IS_COMMAND_ARG(var, "no-trailing-padding"))
 388                 diskStructure.include_padding_areas = 0;
 389         /* RRIP */
 390         else if (CD9660_IS_COMMAND_ARG_DUAL(var, "R", "rockridge"))
 391                 diskStructure.rock_ridge_enabled = 1;
 392         else if (CD9660_IS_COMMAND_ARG_DUAL(var, "A", "archimedes"))
 393                 diskStructure.archimedes_enabled = 1;
 394         else if (CD9660_IS_COMMAND_ARG(var, "chrp-boot"))
 395                 diskStructure.chrp_boot = 1;
 396         else if (CD9660_IS_COMMAND_ARG_DUAL(var, "K", "keep-bad-images"))
 397                 diskStructure.keep_bad_images = 1;
 398         else if (CD9660_IS_COMMAND_ARG(var, "allow-deep-trees"))
 399                 diskStructure.allow_deep_trees = 1;
 400         else if (CD9660_IS_COMMAND_ARG(var, "allow-max-name"))
 401                 diskStructure.allow_max_name = 1;
 402         else if (CD9660_IS_COMMAND_ARG(var, "allow-illegal-chars"))
 403                 diskStructure.allow_illegal_chars = 1;
 404         else if (CD9660_IS_COMMAND_ARG(var, "allow-lowercase"))
 405                 diskStructure.allow_lowercase = 1;
 406         else if (CD9660_IS_COMMAND_ARG(var,"allow-multidot"))
 407                 diskStructure.allow_multidot = 1;
 408         else if (CD9660_IS_COMMAND_ARG(var, "omit-trailing-period"))
 409                 diskStructure.omit_trailing_period = 1;
 410         else if (CD9660_IS_COMMAND_ARG(var, "no-emul-boot") ||
 411                  CD9660_IS_COMMAND_ARG(var, "no-boot") ||
 412                  CD9660_IS_COMMAND_ARG(var, "hard-disk-boot")) {
 413                 cd9660_eltorito_add_boot_option(var, 0);
 414
 415                 /* End of flag variables */
 416         } else if (CD9660_IS_COMMAND_ARG(var, "boot-load-segment")) {
 417                 if (val == NULL) {
 418                         warnx("Option `%s' doesn't contain a value", var);
 419                         rv = 0;
 420                 } else {
 421                         cd9660_eltorito_add_boot_option(var, val);
 422                 }
 423         } else {
 424                 if (val == NULL) {
 425                         warnx("Option `%s' doesn't contain a value", var);
 426                         rv = 0;
 427                 } else
 428                         rv = set_option(cd9660_options, var, val);
 429         }
 430
 431         if (var)
 432                 free(var);
 433         return (rv);
 434 }
 435
 436 /*
 437  * Main function for cd9660_makefs
 438  * Builds the ISO image file
 439  * @param const char *image The image filename to create
 440  * @param const char *dir The directory that is being read
 441  * @param struct fsnode *root The root node of the filesystem tree
 442  * @param struct fsinfo_t *fsopts Any options
 443  */
 444 void
 445 cd9660_makefs(const char *image, const char *dir, fsnode *root,
 446               fsinfo_t *fsopts)
 447 {
 448         int64_t startoffset;
 449         int numDirectories;
 450         uint64_t pathTableSectors;
 451         int64_t firstAvailableSector;
 452         int64_t totalSpace;
 453         int error;
 454         cd9660node *real_root;
 455
 456         if (diskStructure.verbose_level > 0)
 457                 printf("cd9660_makefs: ISO level is %i\n",
 458                     diskStructure.isoLevel);
 459         if (diskStructure.isoLevel < 2 &&
 460             diskStructure.allow_multidot)
 461                 errx(1, "allow-multidot requires iso level of 2\n");
 462
 463         assert(image != NULL);
 464         assert(dir != NULL);
 465         assert(root != NULL);
 466
 467         if (diskStructure.displayHelp) {
 468                 /*
 469                  * Display help here - probably want to put it in
 470                  * a separate function
 471                  */
 472                 return;
 473         }
 474
 475         diskStructure.rootFilesystemPath = dir;
 476
 477         if (diskStructure.verbose_level > 0)
 478                 printf("cd9660_makefs: image %s directory %s root %p\n",
 479                     image, dir, root);
 480
 481         /* Set up some constants. Later, these will be defined with options */
 482
 483         /* Counter needed for path tables */
 484         numDirectories = 0;
 485
 486         /* Convert tree to our own format */
 487         /* Actually, we now need to add the REAL root node, at level 0 */
 488
 489         real_root = cd9660_allocate_cd9660node();
 490         if ((real_root->isoDirRecord =
 491                 malloc( sizeof(iso_directory_record_cd9660) )) == NULL) {
 492                 CD9660_MEM_ALLOC_ERROR("cd9660_makefs");
 493                 exit(1);
 494         }
 495
 496         /* Leave filename blank for root */
 497         memset(real_root->isoDirRecord->name, 0,
 498             ISO_FILENAME_MAXLENGTH_WITH_PADDING);
 499
 500         real_root->level = 0;
 501         diskStructure.rootNode = real_root;
 502         real_root->type = CD9660_TYPE_DIR;
 503         error = 0;
 504         real_root->node = root;
 505         cd9660_convert_structure(root, real_root, 1, &numDirectories, &error);
 506
 507         if (TAILQ_EMPTY(&real_root->cn_children)) {
 508                 errx(1, "cd9660_makefs: converted directory is empty. "
 509                         "Tree conversion failed\n");
 510         } else if (error != 0) {
 511                 errx(1, "cd9660_makefs: tree conversion failed\n");
 512         } else {
 513                 if (diskStructure.verbose_level > 0)
 514                         printf("cd9660_makefs: tree converted\n");
 515         }
 516
 517         /* Add the dot and dot dot records */
 518         cd9660_add_dot_records(real_root);
 519
 520         cd9660_setup_root_node();
 521
 522         if (diskStructure.verbose_level > 0)
 523                 printf("cd9660_makefs: done converting tree\n");
 524
 525         /* non-SUSP extensions */
 526         if (diskStructure.archimedes_enabled)
 527                 archimedes_convert_tree(diskStructure.rootNode);
 528
 529         /* Rock ridge / SUSP init pass */
 530         if (diskStructure.rock_ridge_enabled) {
 531                 cd9660_susp_initialize(diskStructure.rootNode,
 532                     diskStructure.rootNode, NULL);
 533         }
 534
 535         /* Build path table structure */
 536         diskStructure.pathTableLength = cd9660_generate_path_table();
 537
 538         pathTableSectors = CD9660_BLOCKS(diskStructure.sectorSize,
 539                 diskStructure.pathTableLength);
 540
 541         firstAvailableSector = cd9660_setup_volume_descriptors();
 542         if (diskStructure.is_bootable) {
 543                 firstAvailableSector = cd9660_setup_boot(firstAvailableSector);
 544                 if (firstAvailableSector < 0)
 545                         errx(1, "setup_boot failed");
 546         }
 547         /* LE first, then BE */
 548         diskStructure.primaryLittleEndianTableSector = firstAvailableSector;
 549         diskStructure.primaryBigEndianTableSector =
 550                 diskStructure.primaryLittleEndianTableSector + pathTableSectors;
 551
 552         /* Set the secondary ones to -1, not going to use them for now */
 553         diskStructure.secondaryBigEndianTableSector = -1;
 554         diskStructure.secondaryLittleEndianTableSector = -1;
 555
 556         diskStructure.dataFirstSector =
 557             diskStructure.primaryBigEndianTableSector + pathTableSectors;
 558         if (diskStructure.verbose_level > 0)
 559                 printf("cd9660_makefs: Path table conversion complete. "
 560                        "Each table is %i bytes, or %" PRIu64 " sectors.\n",
 561                     diskStructure.pathTableLength, pathTableSectors);
 562
 563         startoffset = diskStructure.sectorSize*diskStructure.dataFirstSector;
 564
 565         totalSpace = cd9660_compute_offsets(real_root, startoffset);
 566
 567         diskStructure.totalSectors = diskStructure.dataFirstSector +
 568                 CD9660_BLOCKS(diskStructure.sectorSize, totalSpace);
 569
 570         /* Disabled until pass 1 is done */
 571         if (diskStructure.rock_ridge_enabled) {
 572                 diskStructure.susp_continuation_area_start_sector =
 573                     diskStructure.totalSectors;
 574                 diskStructure.totalSectors +=
 575                     CD9660_BLOCKS(diskStructure.sectorSize,
 576                         diskStructure.susp_continuation_area_size);
 577                 cd9660_susp_finalize(diskStructure.rootNode);
 578         }
 579
 580
 581         cd9660_finalize_PVD();
 582
 583         /* Add padding sectors, just for testing purposes right now */
 584         /* diskStructure.totalSectors+=150; */
 585
 586         /* Debugging output */
 587         if (diskStructure.verbose_level > 0) {
 588                 printf("cd9660_makefs: Sectors 0-15 reserved\n");
 589                 printf("cd9660_makefs: Primary path tables starts in sector %"
 590                     PRId64 "\n", diskStructure.primaryLittleEndianTableSector);
 591                 printf("cd9660_makefs: File data starts in sector %"
 592                     PRId64 "\n", diskStructure.dataFirstSector);
 593                 printf("cd9660_makefs: Total sectors: %"
 594                     PRId64 "\n", diskStructure.totalSectors);
 595         }
 596
 597         /*
 598          * Add padding sectors at the end
 599          * TODO: Clean this up and separate padding
 600          */
 601         if (diskStructure.include_padding_areas)
 602                 diskStructure.totalSectors += 150;
 603
 604         cd9660_write_image(image);
 605
 606         if (diskStructure.verbose_level > 1) {
 607                 debug_print_volume_descriptor_information();
 608                 debug_print_tree(real_root,0);
 609                 debug_print_path_tree(real_root);
 610         }
 611
 612         /* Clean up data structures */
 613         cd9660_free_structure(real_root);
 614
 615         if (diskStructure.verbose_level > 0)
 616                 printf("cd9660_makefs: done\n");
 617 }
 618
 619 /* Generic function pointer - implement later */
 620 typedef int (*cd9660node_func)(cd9660node *);
 621
 622 static void
 623 cd9660_finalize_PVD(void)
 624 {
 625         time_t tim;
 626         unsigned char *temp;
 627
 628         /* Copy the root directory record */
 629         temp = (unsigned char *) &diskStructure.primaryDescriptor;
 630
 631         /* root should be a fixed size of 34 bytes since it has no name */
 632         memcpy(diskStructure.primaryDescriptor.root_directory_record,
 633                 diskStructure.rootNode->dot_record->isoDirRecord, 34);
 634
 635         /* In RRIP, this might be longer than 34 */
 636         diskStructure.primaryDescriptor.root_directory_record[0] = 34;
 637
 638         /* Set up all the important numbers in the PVD */
 639         cd9660_bothendian_dword(diskStructure.totalSectors,
 640             (unsigned char *)diskStructure.primaryDescriptor.volume_space_size);
 641         cd9660_bothendian_word(1,
 642             (unsigned char *)diskStructure.primaryDescriptor.volume_set_size);
 643         cd9660_bothendian_word(1,
 644             (unsigned char *)
 645                 diskStructure.primaryDescriptor.volume_sequence_number);
 646         cd9660_bothendian_word(diskStructure.sectorSize,
 647             (unsigned char *)
 648                 diskStructure.primaryDescriptor.logical_block_size);
 649         cd9660_bothendian_dword(diskStructure.pathTableLength,
 650             (unsigned char *)diskStructure.primaryDescriptor.path_table_size);
 651
 652         cd9660_731(diskStructure.primaryLittleEndianTableSector,
 653                 (u_char *)diskStructure.primaryDescriptor.type_l_path_table);
 654         cd9660_732(diskStructure.primaryBigEndianTableSector,
 655                 (u_char *)diskStructure.primaryDescriptor.type_m_path_table);
 656
 657         diskStructure.primaryDescriptor.file_structure_version[0] = 1;
 658
 659         /* Pad all strings with spaces instead of nulls */
 660         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_id, 32);
 661         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.system_id, 32);
 662         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_set_id,
 663             128);
 664         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.publisher_id,
 665             128);
 666         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.preparer_id,
 667             128);
 668         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.application_id,
 669             128);
 670         cd9660_pad_string_spaces(
 671             diskStructure.primaryDescriptor.copyright_file_id, 37);
 672         cd9660_pad_string_spaces(
 673                 diskStructure.primaryDescriptor.abstract_file_id, 37);
 674         cd9660_pad_string_spaces(
 675                 diskStructure.primaryDescriptor.bibliographic_file_id, 37);
 676
 677         /* Setup dates */
 678         time(&tim);
 679         cd9660_time_8426(
 680             (unsigned char *)diskStructure.primaryDescriptor.creation_date,
 681             tim);
 682         cd9660_time_8426(
 683             (unsigned char *)diskStructure.primaryDescriptor.modification_date,
 684             tim);
 685
 686         /*
 687         cd9660_set_date(diskStructure.primaryDescriptor.expiration_date, now);
 688         */
 689
 690         memset(diskStructure.primaryDescriptor.expiration_date, '0' ,17);
 691         cd9660_time_8426(
 692             (unsigned char *)diskStructure.primaryDescriptor.effective_date,
 693             tim);
 694 }
 695
 696 static void
 697 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record,
 698                                u_char ext_attr_length, u_char flags,
 699                                u_char name_len, const char * name)
 700 {
 701         record->ext_attr_length[0] = ext_attr_length;
 702         record->flags[0] = ISO_FLAG_CLEAR | flags;
 703         record->file_unit_size[0] = 0;
 704         record->interleave[0] = 0;
 705         cd9660_bothendian_word(1, record->volume_sequence_number);
 706         record->name_len[0] = name_len;
 707         memset(record->name, '\0', sizeof (record->name));
 708         memcpy(record->name, name, name_len);
 709         record->length[0] = 33 + name_len;
 710
 711         /* Todo : better rounding */
 712         record->length[0] += (record->length[0] & 1) ? 1 : 0;
 713 }
 714
 715 static void
 716 cd9660_setup_root_node(void)
 717 {
 718         cd9660_populate_iso_dir_record(diskStructure.rootNode->isoDirRecord,
 719             0, ISO_FLAG_DIRECTORY, 1, "\0");
 720
 721 }
 722
 723 /*********** SUPPORT FUNCTIONS ***********/
 724 static int
 725 cd9660_setup_volume_descriptors(void)
 726 {
 727         /* Boot volume descriptor should come second */
 728         int sector = 16;
 729         /* For now, a fixed 2 : PVD and terminator */
 730         volume_descriptor *temp, *t;
 731
 732         /* Set up the PVD */
 733         if ((temp = malloc(sizeof(volume_descriptor))) == NULL) {
 734                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 735                 exit(1);
 736         }
 737
 738         temp->volumeDescriptorData =
 739            (unsigned char *)&diskStructure.primaryDescriptor;
 740         temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD;
 741         temp->volumeDescriptorData[6] = 1;
 742         temp->sector = sector;
 743         memcpy(temp->volumeDescriptorData + 1,
 744             ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
 745         diskStructure.firstVolumeDescriptor = temp;
 746
 747         sector++;
 748         /* Set up boot support if enabled. BVD must reside in sector 17 */
 749         if (diskStructure.is_bootable) {
 750                 if ((t = malloc(sizeof(volume_descriptor))) == NULL) {
 751                         CD9660_MEM_ALLOC_ERROR(
 752                             "cd9660_setup_volume_descriptors");
 753                         exit(1);
 754                 }
 755                 if ((t->volumeDescriptorData = malloc(2048)) == NULL) {
 756                         CD9660_MEM_ALLOC_ERROR(
 757                             "cd9660_setup_volume_descriptors");
 758                         exit(1);
 759                 }
 760                 temp->next = t;
 761                 temp = t;
 762                 memset(t->volumeDescriptorData, 0, 2048);
 763                 t->sector = 17;
 764                 if (diskStructure.verbose_level > 0)
 765                         printf("Setting up boot volume descriptor\n");
 766                 cd9660_setup_boot_volume_descriptor(t);
 767                 sector++;
 768         }
 769
 770         /* Set up the terminator */
 771         if ((t = malloc(sizeof(volume_descriptor))) == NULL) {
 772                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 773                 exit(1);
 774         }
 775         if ((t->volumeDescriptorData = malloc(2048)) == NULL) {
 776                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 777                 exit(1);
 778         }
 779
 780         temp->next = t;
 781         memset(t->volumeDescriptorData, 0, 2048);
 782         t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR;
 783         t->next = 0;
 784         t->volumeDescriptorData[6] = 1;
 785         t->sector = sector;
 786         memcpy(t->volumeDescriptorData + 1,
 787             ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
 788
 789         sector++;
 790         return sector;
 791 }
 792
 793 #if 0
 794 /*
 795  * Populate EAR at some point. Not required, but is used by NetBSD's
 796  * cd9660 support
 797  */
 798 static int
 799 cd9660_fill_extended_attribute_record(cd9660node *node)
 800 {
 801         if ((node->isoExtAttributes =
 802             malloc(sizeof(struct iso_extended_attributes))) == NULL) {
 803                 CD9660_MEM_ALLOC_ERROR("cd9660_fill_extended_attribute_record");
 804                 exit(1);
 805         };
 806
 807         return 1;
 808 }
 809 #endif
 810
 811 static int
 812 cd9660_translate_node_common(cd9660node *newnode)
 813 {
 814         time_t tim;
 815         int test;
 816         u_char flag;
 817         char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING];
 818
 819         /* Now populate the isoDirRecord structure */
 820         memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
 821
 822         test = cd9660_convert_filename(newnode->node->name,
 823                 temp, !(S_ISDIR(newnode->node->type)));
 824
 825         flag = ISO_FLAG_CLEAR;
 826         if (S_ISDIR(newnode->node->type))
 827                 flag |= ISO_FLAG_DIRECTORY;
 828
 829         cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0,
 830             flag, strlen(temp), temp);
 831
 832         /* Set the various dates */
 833
 834         /* If we want to use the current date and time */
 835         time(&tim);
 836
 837         cd9660_time_915(newnode->isoDirRecord->date, tim);
 838
 839         cd9660_bothendian_dword(newnode->fileDataLength,
 840             newnode->isoDirRecord->size);
 841         /* If the file is a link, we want to set the size to 0 */
 842         if (S_ISLNK(newnode->node->type))
 843                 newnode->fileDataLength = 0;
 844
 845         return 1;
 846 }
 847
 848 /*
 849  * Translate fsnode to cd9660node
 850  * Translate filenames and other metadata, including dates, sizes,
 851  * permissions, etc
 852  * @param struct fsnode * The node generated by makefs
 853  * @param struct cd9660node * The intermediate node to be written to
 854  * @returns int 0 on failure, 1 on success
 855  */
 856 static int
 857 cd9660_translate_node(fsnode *node, cd9660node *newnode)
 858 {
 859         if (node == NULL) {
 860                 if (diskStructure.verbose_level > 0)
 861                         printf("cd9660_translate_node: NULL node passed, "
 862                                "returning\n");
 863                 return 0;
 864         }
 865         if ((newnode->isoDirRecord =
 866                 malloc(sizeof(iso_directory_record_cd9660))) == NULL) {
 867                 CD9660_MEM_ALLOC_ERROR("cd9660_translate_node");
 868                 return 0;
 869         }
 870
 871         /* Set the node pointer */
 872         newnode->node = node;
 873
 874         /* Set the size */
 875         if (!(S_ISDIR(node->type)))
 876                 newnode->fileDataLength = node->inode->st.st_size;
 877
 878         if (cd9660_translate_node_common(newnode) == 0)
 879                 return 0;
 880
 881         /* Finally, overwrite some of the values that are set by default */
 882         cd9660_time_915(newnode->isoDirRecord->date, node->inode->st.st_mtime);
 883
 884         return 1;
 885 }
 886
 887 /*
 888  * Compares two ISO filenames
 889  * @param const char * The first file name
 890  * @param const char * The second file name
 891  * @returns : -1 if first is less than second, 0 if they are the same, 1 if
 892  *      the second is greater than the first
 893  */
 894 static int
 895 cd9660_compare_filename(const char *first, const char *second)
 896 {
 897         /*
 898          * This can be made more optimal once it has been tested
 899          * (the extra character, for example, is for testing)
 900          */
 901
 902         int p1 = 0;
 903         int p2 = 0;
 904         char c1, c2;
 905         /* First, on the filename */
 906
 907         while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1
 908                 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) {
 909                 c1 = first[p1];
 910                 c2 = second[p2];
 911                 if (c1 == '.' && c2 =='.')
 912                         break;
 913                 else if (c1 == '.') {
 914                         p2++;
 915                         c1 = ' ';
 916                 } else if (c2 == '.') {
 917                         p1++;
 918                         c2 = ' ';
 919                 } else {
 920                         p1++;
 921                         p2++;
 922                 }
 923
 924                 if (c1 < c2)
 925                         return -1;
 926                 else if (c1 > c2) {
 927                         return 1;
 928                 }
 929         }
 930
 931         if (first[p1] == '.' && second[p2] == '.') {
 932                 p1++;
 933                 p2++;
 934                 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1
 935                         && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) {
 936                         c1 = first[p1];
 937                         c2 = second[p2];
 938                         if (c1 == ';' && c2 == ';')
 939                                 break;
 940                         else if (c1 == ';') {
 941                                 p2++;
 942                                 c1 = ' ';
 943                         } else if (c2 == ';') {
 944                                 p1++;
 945                                 c2 = ' ';
 946                         } else {
 947                                 p1++;
 948                                 p2++;
 949                         }
 950
 951                         if (c1 < c2)
 952                                 return -1;
 953                         else if (c1 > c2)
 954                                 return 1;
 955                 }
 956         }
 957         return 0;
 958 }
 959
 960 /*
 961  * Insert a node into list with ISO sorting rules
 962  * @param cd9660node * The head node of the list
 963  * @param cd9660node * The node to be inserted
 964  */
 965 static void
 966 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new)
 967 {
 968         int compare;
 969         cd9660node *cn;
 970         struct cd9660_children_head *head = &parent->cn_children;
 971
 972         /* TODO: Optimize? */
 973         cn_new->parent = parent;
 974
 975         /*
 976          * first will either be 0, the . or the ..
 977          * if . or .., this means no other entry may be written before first
 978          * if 0, the new node may be inserted at the head
 979          */
 980
 981         TAILQ_FOREACH(cn, head, cn_next_child) {
 982                 /*
 983                  * Dont insert a node twice -
 984                  * that would cause an infinite loop
 985                  */
 986                 if (cn_new == cn)
 987                         return;
 988
 989                 compare = cd9660_compare_filename(cn_new->isoDirRecord->name,
 990                         cn->isoDirRecord->name);
 991
 992                 if (compare == 0)
 993                         compare = cd9660_compare_filename(cn_new->node->name,
 994                                 cn->node->name);
 995
 996                 if (compare < 0)
 997                         break;
 998         }
 999         if (cn == NULL)
1000                 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child);
1001         else
1002                 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child);
1003 }
1004
1005 /*
1006  * Called After cd9660_sorted_child_insert
1007  * handles file collisions by suffixing each filname with ~n
1008  * where n represents the files respective place in the ordering
1009  */
1010 static int
1011 cd9660_handle_collisions(cd9660node *colliding, int past)
1012 {
1013         cd9660node *iter, *next, *prev;
1014         int skip;
1015         int delete_chars = 0;
1016         int temp_past = past;
1017         int temp_skip;
1018         int flag = 0;
1019         cd9660node *end_of_range;
1020
1021         for (iter = TAILQ_FIRST(&colliding->cn_children);
1022              iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) {
1023                 if (strcmp(iter->isoDirRecord->name,
1024                            next->isoDirRecord->name) != 0) {
1025                         iter = TAILQ_NEXT(iter, cn_next_child);
1026                         continue;
1027                 }
1028                 flag = 1;
1029                 temp_skip = skip = cd9660_count_collisions(iter);
1030                 end_of_range = iter;
1031                 while (temp_skip > 0) {
1032                         temp_skip--;
1033                         end_of_range = TAILQ_NEXT(end_of_range, cn_next_child);
1034                 }
1035                 temp_past = past;
1036                 while (temp_past > 0) {
1037                         if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL)
1038                                 end_of_range = next;
1039                         else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL)
1040                                 iter = prev;
1041                         else
1042                                 delete_chars++;
1043                         temp_past--;
1044                 }
1045                 skip += past;
1046                 iter = cd9660_rename_filename(iter, skip, delete_chars);
1047         }
1048         return flag;
1049 }
1050
1051
1052 static cd9660node *
1053 cd9660_rename_filename(cd9660node *iter, int num, int delete_chars)
1054 {
1055         int i = 0;
1056         int numbts, dot, semi, digit, digits, temp, powers, multiplier, count;
1057         char *naming;
1058         int maxlength;
1059         char *tmp;
1060
1061         if (diskStructure.verbose_level > 0)
1062                 printf("Rename_filename called\n");
1063
1064         /* TODO : A LOT of chanes regarding 8.3 filenames */
1065         if (diskStructure.isoLevel == 1)
1066                 maxlength = 8;
1067         else if (diskStructure.isoLevel == 2)
1068                 maxlength = 31;
1069         else
1070                 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION;
1071
1072         tmp = malloc(ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1073
1074         while (i < num) {
1075                 powers = 1;
1076                 count = 0;
1077                 digits = 1;
1078                 multiplier = 1;
1079                 while (((int)(i / powers) ) >= 10) {
1080                         digits++;
1081                         powers = powers * 10;
1082                 }
1083
1084                 naming = iter->o_name;
1085
1086                 /*
1087                 while ((*naming != '.') && (*naming != ';')) {
1088                         naming++;
1089                         count++;
1090                 }
1091                 */
1092
1093                 dot = -1;
1094                 semi = -1;
1095                 while (count < maxlength) {
1096                         if (*naming == '.')
1097                                 dot = count;
1098                         else if (*naming == ';') {
1099                                 semi = count;
1100                                 break;
1101                         }
1102                         naming++;
1103                         count++;
1104                 }
1105
1106                 if ((count + digits) < maxlength)
1107                         numbts = count;
1108                 else
1109                         numbts = maxlength - (digits);
1110                 numbts -= delete_chars;
1111
1112                 /* 8.3 rules - keep the extension, add before the dot */
1113
1114                 /*
1115                  * This code makes a bunch of assumptions.
1116                  * See if you can spot them all :)
1117                  */
1118
1119                 /*
1120                 if (diskStructure.isoLevel == 1) {
1121                         numbts = 8 - digits - delete_chars;
1122                         if (dot < 0) {
1123
1124                         } else {
1125                                 if (dot < 8) {
1126                                         memmove(&tmp[numbts],&tmp[dot],4);
1127                                 }
1128                         }
1129                 }
1130                 */
1131
1132                 /* (copying just the filename before the '.' */
1133                 memcpy(tmp, (iter->o_name), numbts);
1134
1135                 /* adding the appropriate number following the name */
1136                 temp = i;
1137                 while (digits > 0) {
1138                         digit = (int)(temp / powers);
1139                         temp = temp - digit * powers;
1140                         sprintf(&tmp[numbts] , "%d", digit);
1141                         digits--;
1142                         numbts++;
1143                         powers = powers / 10;
1144                 }
1145
1146                 while ((*naming != ';')  && (numbts < maxlength)) {
1147                         tmp[numbts] = (*naming);
1148                         naming++;
1149                         numbts++;
1150                 }
1151
1152                 tmp[numbts] = ';';
1153                 tmp[numbts+1] = '1';
1154                 tmp[numbts+2] = '\0';
1155
1156                 /*
1157                  * now tmp has exactly the identifier
1158                  * we want so we'll copy it back to record
1159                  */
1160                 memcpy((iter->isoDirRecord->name), tmp, numbts + 3);
1161
1162                 iter = TAILQ_NEXT(iter, cn_next_child);
1163                 i++;
1164         }
1165
1166         free(tmp);
1167         return iter;
1168 }
1169
1170 /* Todo: Figure out why these functions are nec. */
1171 static void
1172 cd9660_copy_filenames(cd9660node *node)
1173 {
1174         cd9660node *cn;
1175
1176         if (TAILQ_EMPTY(&node->cn_children))
1177                 return;
1178
1179         if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) {
1180                 debug_print_tree(diskStructure.rootNode, 0);
1181                 exit(1);
1182         }
1183
1184         TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1185                 cd9660_copy_filenames(cn);
1186                 memcpy(cn->o_name, cn->isoDirRecord->name,
1187                     ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1188         }
1189 }
1190
1191 static void
1192 cd9660_sorting_nodes(cd9660node *node)
1193 {
1194         cd9660node *cn;
1195
1196         TAILQ_FOREACH(cn, &node->cn_children, cn_next_child)
1197                 cd9660_sorting_nodes(cn);
1198         cd9660_sort_nodes(node);
1199 }
1200
1201 /* XXX Bubble sort. */
1202 static void
1203 cd9660_sort_nodes(cd9660node *node)
1204 {
1205         cd9660node *cn, *next;
1206
1207         do {
1208                 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1209                         if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL)
1210                                 return;
1211                         else if (strcmp(next->isoDirRecord->name,
1212                                         cn->isoDirRecord->name) >= 0)
1213                                 continue;
1214                         TAILQ_REMOVE(&node->cn_children, next, cn_next_child);
1215                         TAILQ_INSERT_BEFORE(cn, next, cn_next_child);
1216                         break;
1217                 }
1218         } while (cn != NULL);
1219 }
1220
1221 static int
1222 cd9660_count_collisions(cd9660node *copy)
1223 {
1224         int count = 0;
1225         cd9660node *iter, *next;
1226
1227         for (iter = copy;
1228              (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;
1229              iter = next) {
1230                 if (cd9660_compare_filename(iter->isoDirRecord->name,
1231                         next->isoDirRecord->name) == 0)
1232                         count++;
1233                 else
1234                         return count;
1235         }
1236 #if 0
1237         if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) {
1238                 printf("cd9660_recurse_on_collision: count is %i \n", count);
1239                 compare = cd9660_compare_filename(iter->isoDirRecord->name,
1240                         next->isoDirRecord->name);
1241                 if (compare == 0) {
1242                         count++;
1243                         return cd9660_recurse_on_collision(next, count);
1244                 } else
1245                         return count;
1246         }
1247 #endif
1248         return count;
1249 }
1250
1251 static cd9660node *
1252 cd9660_rrip_move_directory(cd9660node *dir)
1253 {
1254         char newname[9];
1255         cd9660node *tfile;
1256
1257         /*
1258          * This function needs to:
1259          * 1) Create an empty virtual file in place of the old directory
1260          * 2) Point the virtual file to the new directory
1261          * 3) Point the relocated directory to its old parent
1262          * 4) Move the directory specified by dir into rr_moved_dir,
1263          * and rename it to "diskStructure.rock_ridge_move_count" (as a string)
1264          */
1265
1266         /* First see if the moved directory even exists */
1267         if (diskStructure.rr_moved_dir == NULL) {
1268                 diskStructure.rr_moved_dir =
1269                         cd9660_create_directory(ISO_RRIP_DEFAULT_MOVE_DIR_NAME,
1270                                 diskStructure.rootNode, dir);
1271                 if (diskStructure.rr_moved_dir == NULL)
1272                         return 0;
1273         }
1274
1275         /* Create a file with the same ORIGINAL name */
1276         tfile = cd9660_create_file(dir->node->name, dir->parent, dir);
1277         if (tfile == NULL)
1278                 return NULL;
1279
1280         diskStructure.rock_ridge_move_count++;
1281         snprintf(newname, sizeof(newname), "%08i",
1282             diskStructure.rock_ridge_move_count);
1283
1284         /* Point to old parent */
1285         dir->rr_real_parent = dir->parent;
1286
1287         /* Place the placeholder file */
1288         if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) {
1289                 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile,
1290                     cn_next_child);
1291         } else {
1292                 cd9660_sorted_child_insert(dir->rr_real_parent, tfile);
1293         }
1294
1295         /* Point to new parent */
1296         dir->parent = diskStructure.rr_moved_dir;
1297
1298         /* Point the file to the moved directory */
1299         tfile->rr_relocated = dir;
1300
1301         /* Actually move the directory */
1302         cd9660_sorted_child_insert(diskStructure.rr_moved_dir, dir);
1303
1304         /* TODO: Inherit permissions / ownership (basically the entire inode) */
1305
1306         /* Set the new name */
1307         memset(dir->isoDirRecord->name, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1308         strncpy(dir->isoDirRecord->name, newname, 8);
1309         dir->isoDirRecord->length[0] = 34 + 8;
1310         dir->isoDirRecord->name_len[0] = 8;
1311
1312         return dir;
1313 }
1314
1315 static int
1316 cd9660_add_dot_records(cd9660node *root)
1317 {
1318         struct cd9660_children_head *head = &root->cn_children;
1319         cd9660node *cn;
1320
1321         TAILQ_FOREACH(cn, head, cn_next_child) {
1322                 if ((cn->type & CD9660_TYPE_DIR) == 0)
1323                         continue;
1324                 /* Recursion first */
1325                 cd9660_add_dot_records(cn);
1326         }
1327         cd9660_create_special_directory(CD9660_TYPE_DOT, root);
1328         cd9660_create_special_directory(CD9660_TYPE_DOTDOT, root);
1329         return 1;
1330 }
1331
1332 /*
1333  * Convert node to cd9660 structure
1334  * This function is designed to be called recursively on the root node of
1335  * the filesystem
1336  * Lots of recursion going on here, want to make sure it is efficient
1337  * @param struct fsnode * The root node to be converted
1338  * @param struct cd9660* The parent node (should not be NULL)
1339  * @param int Current directory depth
1340  * @param int* Running count of the number of directories that are being created
1341  */
1342 static void
1343 cd9660_convert_structure(fsnode *root, cd9660node *parent_node, int level,
1344                          int *numDirectories, int *error)
1345 {
1346         fsnode *iterator = root;
1347         cd9660node *this_node;
1348         int working_level;
1349         int add;
1350         int flag = 0;
1351         int counter = 0;
1352
1353         /*
1354          * Newer, more efficient method, reduces recursion depth
1355          */
1356         if (root == NULL) {
1357                 warnx("%s: root is null\n", __func__);
1358                 return;
1359         }
1360
1361         /* Test for an empty directory - makefs still gives us the . record */
1362         if ((S_ISDIR(root->type)) && (root->name[0] == '.')
1363                 && (root->name[1] == '\0')) {
1364                 root = root->next;
1365                 if (root == NULL)
1366                         return;
1367         }
1368         if ((this_node = cd9660_allocate_cd9660node()) == NULL) {
1369                 CD9660_MEM_ALLOC_ERROR(__func__);
1370         }
1371
1372         /*
1373          * To reduce the number of recursive calls, we will iterate over
1374          * the next pointers to the right.
1375          */
1376         while (iterator != NULL) {
1377                 add = 1;
1378                 /*
1379                  * Increment the directory count if this is a directory
1380                  * Ignore "." entries. We will generate them later
1381                  */
1382                 if (!S_ISDIR(iterator->type) ||
1383                     strcmp(iterator->name, ".") != 0) {
1384
1385                         /* Translate the node, including its filename */
1386                         this_node->parent = parent_node;
1387                         cd9660_translate_node(iterator, this_node);
1388                         this_node->level = level;
1389
1390                         if (S_ISDIR(iterator->type)) {
1391                                 (*numDirectories)++;
1392                                 this_node->type = CD9660_TYPE_DIR;
1393                                 working_level = level + 1;
1394
1395                                 /*
1396                                  * If at level 8, directory would be at 8
1397                                  * and have children at 9 which is not
1398                                  * allowed as per ISO spec
1399                                  */
1400                                 if (level == 8) {
1401                                         if ((!diskStructure.allow_deep_trees) &&
1402                                           (!diskStructure.rock_ridge_enabled)) {
1403                                                 warnx("error: found entry "
1404                                                      "with depth greater "
1405                                                      "than 8.");
1406                                                 (*error) = 1;
1407                                                 return;
1408                                         } else if (diskStructure.
1409                                                    rock_ridge_enabled) {
1410                                                 working_level = 3;
1411                                                 /*
1412                                                  * Moved directory is actually
1413                                                  * at level 2.
1414                                                  */
1415                                                 this_node->level =
1416                                                     working_level - 1;
1417                                                 if (cd9660_rrip_move_directory(
1418                                                         this_node) == 0) {
1419                                                         warnx("Failure in "
1420                                                               "cd9660_rrip_"
1421                                                               "move_directory"
1422                                                         );
1423                                                         (*error) = 1;
1424                                                         return;
1425                                                 }
1426                                                 add = 0;
1427                                         }
1428                                 }
1429
1430                                 /* Do the recursive call on the children */
1431                                 if (iterator->child != 0) {
1432                                         cd9660_convert_structure(
1433                                             iterator->child, this_node,
1434                                                 working_level,
1435                                                 numDirectories, error);
1436
1437                                         if ((*error) == 1) {
1438                                                 warnx("%s: Error on recursive "
1439                                                     "call", __func__);
1440                                                 return;
1441                                         }
1442                                 }
1443
1444                         } else {
1445                                 /* Only directories should have children */
1446                                 assert(iterator->child == NULL);
1447
1448                                 this_node->type = CD9660_TYPE_FILE;
1449                         }
1450
1451                         /*
1452                          * Finally, do a sorted insert
1453                          */
1454                         if (add) {
1455                                 cd9660_sorted_child_insert(
1456                                     parent_node, this_node);
1457                         }
1458
1459                         /*Allocate new temp_node */
1460                         if (iterator->next != 0) {
1461                                 this_node = cd9660_allocate_cd9660node();
1462                                 if (this_node == NULL)
1463                                         CD9660_MEM_ALLOC_ERROR(__func__);
1464                         }
1465                 }
1466                 iterator = iterator->next;
1467         }
1468
1469         /* cd9660_handle_collisions(first_node); */
1470
1471         /* TODO: need cleanup */
1472         cd9660_copy_filenames(parent_node);
1473
1474         do {
1475                 flag = cd9660_handle_collisions(parent_node, counter);
1476                 counter++;
1477                 cd9660_sorting_nodes(parent_node);
1478         } while ((flag == 1) && (counter < 100));
1479 }
1480
1481 /*
1482  * Clean up the cd9660node tree
1483  * This is designed to be called recursively on the root node
1484  * @param struct cd9660node *root The node to free
1485  * @returns void
1486  */
1487 static void
1488 cd9660_free_structure(cd9660node *root)
1489 {
1490         cd9660node *cn;
1491
1492         while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) {
1493                 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child);
1494                 cd9660_free_structure(cn);
1495         }
1496         free(root);
1497 }
1498
1499 /*
1500  * Be a little more memory conservative:
1501  * instead of having the TAILQ_ENTRY as part of the cd9660node,
1502  * just create a temporary structure
1503  */
1504 struct ptq_entry
1505 {
1506         TAILQ_ENTRY(ptq_entry) ptq;
1507         cd9660node *node;
1508 } *n;
1509
1510 #define PTQUEUE_NEW(n,s,r,t){\
1511         n = malloc(sizeof(struct s));   \
1512         if (n == NULL)  \
1513                 return r; \
1514         n->node = t;\
1515 }
1516
1517 /*
1518  * Generate the path tables
1519  * The specific implementation of this function is left as an exercise to the
1520  * programmer. It could be done recursively. Make sure you read how the path
1521  * table has to be laid out, it has levels.
1522  * @param struct iso9660_disk *disk The disk image
1523  * @returns int The number of built path tables (between 1 and 4), 0 on failure
1524  */
1525 static int
1526 cd9660_generate_path_table(void)
1527 {
1528         cd9660node *cn, *dirNode = diskStructure.rootNode;
1529         cd9660node *last = dirNode;
1530         int pathTableSize = 0;  /* computed as we go */
1531         int counter = 1;        /* root gets a count of 0 */
1532         int parentRecNum = 0;   /* root's parent is '0' */
1533
1534         TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head;
1535         TAILQ_INIT(&pt_head);
1536
1537         PTQUEUE_NEW(n, ptq_entry, -1, diskStructure.rootNode);
1538
1539         /* Push the root node */
1540         TAILQ_INSERT_HEAD(&pt_head, n, ptq);
1541
1542         /* Breadth-first traversal of file structure */
1543         while (pt_head.tqh_first != 0) {
1544                 n = pt_head.tqh_first;
1545                 dirNode = n->node;
1546                 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq);
1547                 free(n);
1548
1549                 /* Update the size */
1550                 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE
1551                     + dirNode->isoDirRecord->name_len[0]+
1552                         (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1);
1553                         /* includes the padding bit */
1554
1555                 dirNode->ptnumber=counter;
1556                 if (dirNode != last) {
1557                         last->ptnext = dirNode;
1558                         dirNode->ptprev = last;
1559                 }
1560                 last = dirNode;
1561
1562                 parentRecNum = 1;
1563                 if (dirNode->parent != 0)
1564                         parentRecNum = dirNode->parent->ptnumber;
1565
1566                 /* Push children onto queue */
1567                 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) {
1568                         /*
1569                          * Dont add the DOT and DOTDOT types to the path
1570                          * table.
1571                          */
1572                         if ((cn->type != CD9660_TYPE_DOT)
1573                                 && (cn->type != CD9660_TYPE_DOTDOT)) {
1574
1575                                 if (S_ISDIR(cn->node->type)) {
1576                                         PTQUEUE_NEW(n, ptq_entry, -1, cn);
1577                                         TAILQ_INSERT_TAIL(&pt_head, n, ptq);
1578                                 }
1579                         }
1580                 }
1581                 counter++;
1582         }
1583         return pathTableSize;
1584 }
1585
1586 void
1587 cd9660_compute_full_filename(cd9660node *node, char *buf, int level)
1588 {
1589         cd9660node *parent;
1590
1591         parent = (node->rr_real_parent == NULL ?
1592                   node->parent : node->rr_real_parent);
1593         if (parent != NULL) {
1594                 cd9660_compute_full_filename(parent, buf, level + 1);
1595                 strcat(buf, node->node->name);
1596         } else {
1597                 /* We are at the root */
1598                 strcat(buf, diskStructure.rootFilesystemPath);
1599                 if (buf[strlen(buf) - 1] == '/')
1600                         buf[strlen(buf) - 1] = '\0';
1601         }
1602
1603         if (level != 0)
1604                 strcat(buf, "/");
1605 }
1606
1607 /* NEW filename conversion method */
1608 typedef int(*cd9660_filename_conversion_functor)(const char *, char *, int);
1609
1610
1611 /*
1612  * TODO: These two functions are almost identical.
1613  * Some code cleanup is possible here
1614  *
1615  * XXX bounds checking!
1616  */
1617 static int
1618 cd9660_level1_convert_filename(const char *oldname, char *newname, int is_file)
1619 {
1620         /*
1621          * ISO 9660 : 10.1
1622          * File Name shall not contain more than 8 d or d1 characters
1623          * File Name Extension shall not contain more than 3 d or d1 characters
1624          * Directory Identifier shall not contain more than 8 d or d1 characters
1625          */
1626         int namelen = 0;
1627         int extlen = 0;
1628         int found_ext = 0;
1629
1630         while (*oldname != '\0' && extlen < 3) {
1631                 /* Handle period first, as it is special */
1632                 if (*oldname == '.') {
1633                         if (found_ext) {
1634                                 *newname++ = '_';
1635                                 extlen ++;
1636                         }
1637                         else {
1638                                 *newname++ = '.';
1639                                 found_ext = 1;
1640                         }
1641                 } else {
1642                         /* cut RISC OS file type off ISO name */
1643                         if (diskStructure.archimedes_enabled &&
1644                             *oldname == ',' && strlen(oldname) == 4)
1645                                 break;
1646                         /* Enforce 12.3 / 8 */
1647                         if (namelen == 8 && !found_ext)
1648                                 break;
1649
1650                         if (islower((unsigned char)*oldname))
1651                                 *newname++ = toupper((unsigned char)*oldname);
1652                         else if (isupper((unsigned char)*oldname)
1653                                     || isdigit((unsigned char)*oldname))
1654                                 *newname++ = *oldname;
1655                         else
1656                                 *newname++ = '_';
1657
1658                         if (found_ext)
1659                                 extlen++;
1660                         else
1661                                 namelen++;
1662                 }
1663                 oldname ++;
1664         }
1665         if (is_file) {
1666                 if (!found_ext && !diskStructure.omit_trailing_period)
1667                         *newname++ = '.';
1668                 /* Add version */
1669                 sprintf(newname, ";%i", 1);
1670         }
1671         return namelen + extlen + found_ext;
1672 }
1673
1674 /* XXX bounds checking! */
1675 static int
1676 cd9660_level2_convert_filename(const char *oldname, char *newname, int is_file)
1677 {
1678         /*
1679          * ISO 9660 : 7.5.1
1680          * File name : 0+ d or d1 characters
1681          * separator 1 (.)
1682          * File name extension : 0+ d or d1 characters
1683          * separator 2 (;)
1684          * File version number (5 characters, 1-32767)
1685          * 1 <= Sum of File name and File name extension <= 30
1686          */
1687         int namelen = 0;
1688         int extlen = 0;
1689         int found_ext = 0;
1690
1691         while (*oldname != '\0' && namelen + extlen < 30) {
1692                 /* Handle period first, as it is special */
1693                 if (*oldname == '.') {
1694                         if (found_ext) {
1695                                 if (diskStructure.allow_multidot) {
1696                                         *newname++ = '.';
1697                                 } else {
1698                                         *newname++ = '_';
1699                                 }
1700                                 extlen ++;
1701                         }
1702                         else {
1703                                 *newname++ = '.';
1704                                 found_ext = 1;
1705                         }
1706                 } else {
1707                         /* cut RISC OS file type off ISO name */
1708                         if (diskStructure.archimedes_enabled &&
1709                             *oldname == ',' && strlen(oldname) == 4)
1710                                 break;
1711
1712                          if (islower((unsigned char)*oldname))
1713                                 *newname++ = toupper((unsigned char)*oldname);
1714                         else if (isupper((unsigned char)*oldname) ||
1715                             isdigit((unsigned char)*oldname))
1716                                 *newname++ = *oldname;
1717                         else if (diskStructure.allow_multidot &&
1718                             *oldname == '.') {
1719                                 *newname++ = '.';
1720                         } else {
1721                                 *newname++ = '_';
1722                         }
1723
1724                         if (found_ext)
1725                                 extlen++;
1726                         else
1727                                 namelen++;
1728                 }
1729                 oldname ++;
1730         }
1731         if (is_file) {
1732                 if (!found_ext && !diskStructure.omit_trailing_period)
1733                         *newname++ = '.';
1734                 /* Add version */
1735                 sprintf(newname, ";%i", 1);
1736         }
1737         return namelen + extlen + found_ext;
1738 }
1739
1740 #if 0
1741 static int
1742 cd9660_joliet_convert_filename(const char *oldname, char *newname, int is_file)
1743 {
1744         /* TODO: implement later, move to cd9660_joliet.c ?? */
1745 }
1746 #endif
1747
1748
1749 /*
1750  * Convert a file name to ISO compliant file name
1751  * @param char * oldname The original filename
1752  * @param char ** newname The new file name, in the appropriate character
1753  *                        set and of appropriate length
1754  * @param int 1 if file, 0 if directory
1755  * @returns int The length of the new string
1756  */
1757 static int
1758 cd9660_convert_filename(const char *oldname, char *newname, int is_file)
1759 {
1760         /* NEW */
1761         cd9660_filename_conversion_functor conversion_function = 0;
1762         if (diskStructure.isoLevel == 1)
1763                 conversion_function = &cd9660_level1_convert_filename;
1764         else if (diskStructure.isoLevel == 2)
1765                 conversion_function = &cd9660_level2_convert_filename;
1766         return (*conversion_function)(oldname, newname, is_file);
1767 }
1768
1769 int
1770 cd9660_compute_record_size(cd9660node *node)
1771 {
1772         int size = node->isoDirRecord->length[0];
1773
1774         if (diskStructure.rock_ridge_enabled)
1775                 size += node->susp_entry_size;
1776         size += node->su_tail_size;
1777         size += size & 1; /* Ensure length of record is even. */
1778         assert(size <= 254);
1779         return size;
1780 }
1781
1782 static void
1783 cd9660_populate_dot_records(cd9660node *node)
1784 {
1785         node->dot_record->fileDataSector = node->fileDataSector;
1786         memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34);
1787         node->dot_record->isoDirRecord->name_len[0] = 1;
1788         node->dot_record->isoDirRecord->name[0] = 0;
1789         node->dot_record->isoDirRecord->name[1] = 0;
1790         node->dot_record->isoDirRecord->length[0] = 34;
1791         node->dot_record->fileRecordSize =
1792             cd9660_compute_record_size(node->dot_record);
1793
1794         if (node == diskStructure.rootNode) {
1795                 node->dot_dot_record->fileDataSector = node->fileDataSector;
1796                 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord,
1797                     34);
1798         } else {
1799                 node->dot_dot_record->fileDataSector =
1800                     node->parent->fileDataSector;
1801                 memcpy(node->dot_dot_record->isoDirRecord,
1802                     node->parent->isoDirRecord,34);
1803         }
1804         node->dot_dot_record->isoDirRecord->name_len[0] = 1;
1805         node->dot_dot_record->isoDirRecord->name[0] = 1;
1806         node->dot_dot_record->isoDirRecord->name[1] = 0;
1807         node->dot_dot_record->isoDirRecord->length[0] = 34;
1808         node->dot_dot_record->fileRecordSize =
1809             cd9660_compute_record_size(node->dot_dot_record);
1810 }
1811
1812 /*
1813  * @param struct cd9660node *node The node
1814  * @param int The offset (in bytes) - SHOULD align to the beginning of a sector
1815  * @returns int The total size of files and directory entries (should be
1816  *              a multiple of sector size)
1817 */
1818 static int64_t
1819 cd9660_compute_offsets(cd9660node *node, int64_t startOffset)
1820 {
1821         /*
1822          * This function needs to compute the size of directory records and
1823          * runs, file lengths, and set the appropriate variables both in
1824          * cd9660node and isoDirEntry
1825          */
1826         int64_t used_bytes = 0;
1827         int64_t current_sector_usage = 0;
1828         cd9660node *child;
1829         fsinode *inode;
1830         int64_t r;
1831
1832         assert(node != NULL);
1833
1834
1835         /*
1836          * NOTE : There needs to be some special case detection for
1837          * the "real root" node, since for it, node->node is undefined
1838          */
1839
1840         node->fileDataSector = -1;
1841
1842         if (node->type & CD9660_TYPE_DIR) {
1843                 node->fileRecordSize = cd9660_compute_record_size(node);
1844                 /*Set what sector this directory starts in*/
1845                 node->fileDataSector =
1846                     CD9660_BLOCKS(diskStructure.sectorSize,startOffset);
1847
1848                 cd9660_bothendian_dword(node->fileDataSector,
1849                     node->isoDirRecord->extent);
1850
1851                 /*
1852                  * First loop over children, need to know the size of
1853                  * their directory records
1854                  */
1855                 node->fileSectorsUsed = 1;
1856                 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) {
1857                         node->fileDataLength +=
1858                             cd9660_compute_record_size(child);
1859                         if ((cd9660_compute_record_size(child) +
1860                             current_sector_usage) >=
1861                             diskStructure.sectorSize) {
1862                                 current_sector_usage = 0;
1863                                 node->fileSectorsUsed++;
1864                         }
1865
1866                         current_sector_usage +=
1867                             cd9660_compute_record_size(child);
1868                 }
1869
1870                 cd9660_bothendian_dword(node->fileSectorsUsed *
1871                         diskStructure.sectorSize,node->isoDirRecord->size);
1872
1873                 /*
1874                  * This should point to the sector after the directory
1875                  * record (or, the first byte in that sector)
1876                  */
1877                 used_bytes += node->fileSectorsUsed * diskStructure.sectorSize;
1878
1879                 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1880                      child != NULL; child = TAILQ_NEXT(child, cn_next_child)) {
1881                         /* Directories need recursive call */
1882                         if (S_ISDIR(child->node->type)) {
1883                                 r = cd9660_compute_offsets(child,
1884                                     used_bytes + startOffset);
1885
1886                                 if (r != -1)
1887                                         used_bytes += r;
1888                                 else
1889                                         return -1;
1890                         }
1891                 }
1892
1893                 /* Explicitly set the . and .. records */
1894                 cd9660_populate_dot_records(node);
1895
1896                 /* Finally, do another iteration to write the file data*/
1897                 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1898                      child != NULL;
1899                      child = TAILQ_NEXT(child, cn_next_child)) {
1900                         /* Files need extent set */
1901                         if (S_ISDIR(child->node->type))
1902                                 continue;
1903                         child->fileRecordSize =
1904                             cd9660_compute_record_size(child);
1905
1906                         child->fileSectorsUsed =
1907                             CD9660_BLOCKS(diskStructure.sectorSize,
1908                                 child->fileDataLength);
1909
1910                         inode = child->node->inode;
1911                         if ((inode->flags & FI_ALLOCATED) == 0) {
1912                                 inode->ino =
1913                                     CD9660_BLOCKS(diskStructure.sectorSize,
1914                                         used_bytes + startOffset);
1915                                 inode->flags |= FI_ALLOCATED;
1916                                 used_bytes += child->fileSectorsUsed *
1917                                     diskStructure.sectorSize;
1918                         } else {
1919                                 INODE_WARNX(("%s: already allocated inode %d "
1920                                       "data sectors at %" PRIu32, __func__,
1921                                       (int)inode->st.st_ino, inode->ino));
1922                         }
1923                         child->fileDataSector = inode->ino;
1924                         cd9660_bothendian_dword(child->fileDataSector,
1925                                 child->isoDirRecord->extent);
1926                 }
1927         }
1928
1929         return used_bytes;
1930 }
1931
1932 #if 0
1933 /* Might get rid of this func */
1934 static int
1935 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file)
1936 {
1937         to->node->inode->st.st_dev = 0;
1938         to->node->inode->st.st_ino = 0;
1939         to->node->inode->st.st_size = 0;
1940         to->node->inode->st.st_blksize = from->node->inode->st.st_blksize;
1941         to->node->inode->st.st_atime = from->node->inode->st.st_atime;
1942         to->node->inode->st.st_mtime = from->node->inode->st.st_mtime;
1943         to->node->inode->st.st_ctime = from->node->inode->st.st_ctime;
1944         to->node->inode->st.st_uid = from->node->inode->st.st_uid;
1945         to->node->inode->st.st_gid = from->node->inode->st.st_gid;
1946         to->node->inode->st.st_mode = from->node->inode->st.st_mode;
1947         /* Clear out type */
1948         to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT);
1949         if (file)
1950                 to->node->inode->st.st_mode |= S_IFREG;
1951         else
1952                 to->node->inode->st.st_mode |= S_IFDIR;
1953         return 1;
1954 }
1955 #endif
1956
1957 static cd9660node *
1958 cd9660_create_virtual_entry(const char *name, cd9660node *parent, int file,
1959                             int insert)
1960 {
1961         cd9660node *temp;
1962         fsnode * tfsnode;
1963
1964         assert(parent != NULL);
1965
1966         temp = cd9660_allocate_cd9660node();
1967         if (temp == NULL)
1968                 return NULL;
1969
1970         if ((tfsnode = malloc(sizeof(fsnode))) == NULL) {
1971                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1972                 return NULL;
1973         }
1974
1975         /* Assume for now name is a valid length */
1976         if ((tfsnode->name = malloc(strlen(name) + 1)) == NULL) {
1977                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1978                 return NULL;
1979         }
1980
1981         if ((temp->isoDirRecord =
1982             malloc(sizeof(iso_directory_record_cd9660))) == NULL) {
1983                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1984                 return NULL;
1985         }
1986
1987         strcpy(tfsnode->name, name);
1988
1989         cd9660_convert_filename(tfsnode->name, 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(const char * name, cd9660node *parent, cd9660node *me)
2026 {
2027         cd9660node *temp;
2028
2029         temp = cd9660_create_virtual_entry(name,parent,1,1);
2030         if (temp == NULL)
2031                 return NULL;
2032
2033         temp->fileDataLength = 0;
2034
2035         temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL;
2036
2037         if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2038                 return NULL;
2039         *temp->node->inode = *me->node->inode;
2040
2041         if (cd9660_translate_node_common(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(const char *name, cd9660node *parent, cd9660node *me)
2054 {
2055         cd9660node *temp;
2056
2057         temp = cd9660_create_virtual_entry(name,parent,0,1);
2058         if (temp == NULL)
2059                 return NULL;
2060         temp->node->type |= S_IFDIR;
2061
2062         temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL;
2063
2064         if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2065                 return NULL;
2066         *temp->node->inode = *me->node->inode;
2067
2068         if (cd9660_translate_node_common(temp) == 0)
2069                 return NULL;
2070         return temp;
2071 }
2072
2073 static cd9660node *
2074 cd9660_create_special_directory(u_char type, cd9660node *parent)
2075 {
2076         cd9660node *temp, *first;
2077         char na[2];
2078
2079         assert(parent != NULL);
2080
2081         if (type == CD9660_TYPE_DOT)
2082                 na[0] = 0;
2083         else if (type == CD9660_TYPE_DOTDOT)
2084                 na[0] = 1;
2085         else
2086                 return 0;
2087
2088         na[1] = 0;
2089         if ((temp = cd9660_create_virtual_entry(na, parent, 0, 0)) == NULL)
2090                 return NULL;
2091
2092         temp->parent = parent;
2093         temp->type = type;
2094         temp->isoDirRecord->length[0] = 34;
2095         /* Dot record is always first */
2096         if (type == CD9660_TYPE_DOT) {
2097                 parent->dot_record = temp;
2098                 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child);
2099         /* DotDot should be second */
2100         } else if (type == CD9660_TYPE_DOTDOT) {
2101                 parent->dot_dot_record = temp;
2102                 /*
2103                  * If the first child is the dot record, insert
2104                  * this second.  Otherwise, insert it at the head.
2105                  */
2106                 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL ||
2107                     (first->type & CD9660_TYPE_DOT) == 0) {
2108                         TAILQ_INSERT_HEAD(&parent->cn_children, temp,
2109                             cn_next_child);
2110                 } else {
2111                         TAILQ_INSERT_AFTER(&parent->cn_children, first, temp,
2112                             cn_next_child);
2113                 }
2114         }
2115
2116         return temp;
2117 }
2118
2119 int
2120 cd9660_add_generic_bootimage(const char *bootimage)
2121 {
2122         struct stat stbuf;
2123
2124         assert(bootimage != NULL);
2125
2126         if (*bootimage == '\0') {
2127                 warnx("Error: Boot image must be a filename");
2128                 return 0;
2129         }
2130
2131         if ((diskStructure.generic_bootimage = strdup(bootimage)) == NULL) {
2132                 warn("%s: strdup", __func__);
2133                 return 0;
2134         }
2135
2136         /* Get information about the file */
2137         if (lstat(diskStructure.generic_bootimage, &stbuf) == -1)
2138                 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__,
2139                     diskStructure.generic_bootimage);
2140
2141         if (stbuf.st_size > 32768) {
2142                 warnx("Error: Boot image must be no greater than 32768 bytes");
2143                 return 0;
2144         }
2145
2146         if (diskStructure.verbose_level > 0) {
2147                 printf("Generic boot image image has size %lld\n",
2148                     (long long)stbuf.st_size);
2149         }
2150
2151         diskStructure.has_generic_bootimage = 1;
2152
2153         return 1;
2154 }