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 initialize 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, "FreeBSD");
 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, 2, "ISO Level" },
 300                 { "isolevel", &diskStructure.isoLevel, 1, 2, "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         free(var);
 432         return (rv);
 433 }
 434
 435 /*
 436  * Main function for cd9660_makefs
 437  * Builds the ISO image file
 438  * @param const char *image The image filename to create
 439  * @param const char *dir The directory that is being read
 440  * @param struct fsnode *root The root node of the filesystem tree
 441  * @param struct fsinfo_t *fsopts Any options
 442  */
 443 void
 444 cd9660_makefs(const char *image, const char *dir, fsnode *root,
 445               fsinfo_t *fsopts)
 446 {
 447         int64_t startoffset;
 448         int numDirectories;
 449         uint64_t pathTableSectors;
 450         int64_t firstAvailableSector;
 451         int64_t totalSpace;
 452         int error;
 453         cd9660node *real_root;
 454
 455         if (diskStructure.verbose_level > 0)
 456                 printf("cd9660_makefs: ISO level is %i\n",
 457                     diskStructure.isoLevel);
 458         if (diskStructure.isoLevel < 2 &&
 459             diskStructure.allow_multidot)
 460                 errx(1, "allow-multidot requires iso level of 2\n");
 461
 462         assert(image != NULL);
 463         assert(dir != NULL);
 464         assert(root != NULL);
 465
 466         if (diskStructure.displayHelp) {
 467                 /*
 468                  * Display help here - probably want to put it in
 469                  * a separate function
 470                  */
 471                 return;
 472         }
 473
 474         if (diskStructure.verbose_level > 0)
 475                 printf("cd9660_makefs: image %s directory %s root %p\n",
 476                     image, dir, root);
 477
 478         /* Set up some constants. Later, these will be defined with options */
 479
 480         /* Counter needed for path tables */
 481         numDirectories = 0;
 482
 483         /* Convert tree to our own format */
 484         /* Actually, we now need to add the REAL root node, at level 0 */
 485
 486         real_root = cd9660_allocate_cd9660node();
 487         if ((real_root->isoDirRecord =
 488                 malloc( sizeof(iso_directory_record_cd9660) )) == NULL) {
 489                 CD9660_MEM_ALLOC_ERROR("cd9660_makefs");
 490                 exit(1);
 491         }
 492
 493         /* Leave filename blank for root */
 494         memset(real_root->isoDirRecord->name, 0,
 495             ISO_FILENAME_MAXLENGTH_WITH_PADDING);
 496
 497         real_root->level = 0;
 498         diskStructure.rootNode = real_root;
 499         real_root->type = CD9660_TYPE_DIR;
 500         error = 0;
 501         real_root->node = root;
 502         cd9660_convert_structure(root, real_root, 1, &numDirectories, &error);
 503
 504         if (TAILQ_EMPTY(&real_root->cn_children)) {
 505                 errx(1, "cd9660_makefs: converted directory is empty. "
 506                         "Tree conversion failed\n");
 507         } else if (error != 0) {
 508                 errx(1, "cd9660_makefs: tree conversion failed\n");
 509         } else {
 510                 if (diskStructure.verbose_level > 0)
 511                         printf("cd9660_makefs: tree converted\n");
 512         }
 513
 514         /* Add the dot and dot dot records */
 515         cd9660_add_dot_records(real_root);
 516
 517         cd9660_setup_root_node();
 518
 519         if (diskStructure.verbose_level > 0)
 520                 printf("cd9660_makefs: done converting tree\n");
 521
 522         /* non-SUSP extensions */
 523         if (diskStructure.archimedes_enabled)
 524                 archimedes_convert_tree(diskStructure.rootNode);
 525
 526         /* Rock ridge / SUSP init pass */
 527         if (diskStructure.rock_ridge_enabled) {
 528                 cd9660_susp_initialize(diskStructure.rootNode,
 529                     diskStructure.rootNode, NULL);
 530         }
 531
 532         /* Build path table structure */
 533         diskStructure.pathTableLength = cd9660_generate_path_table();
 534
 535         pathTableSectors = CD9660_BLOCKS(diskStructure.sectorSize,
 536                 diskStructure.pathTableLength);
 537
 538         firstAvailableSector = cd9660_setup_volume_descriptors();
 539         if (diskStructure.is_bootable) {
 540                 firstAvailableSector = cd9660_setup_boot(firstAvailableSector);
 541                 if (firstAvailableSector < 0)
 542                         errx(1, "setup_boot failed");
 543         }
 544         /* LE first, then BE */
 545         diskStructure.primaryLittleEndianTableSector = firstAvailableSector;
 546         diskStructure.primaryBigEndianTableSector =
 547                 diskStructure.primaryLittleEndianTableSector + pathTableSectors;
 548
 549         /* Set the secondary ones to -1, not going to use them for now */
 550         diskStructure.secondaryBigEndianTableSector = -1;
 551         diskStructure.secondaryLittleEndianTableSector = -1;
 552
 553         diskStructure.dataFirstSector =
 554             diskStructure.primaryBigEndianTableSector + pathTableSectors;
 555         if (diskStructure.verbose_level > 0)
 556                 printf("cd9660_makefs: Path table conversion complete. "
 557                        "Each table is %i bytes, or %" PRIu64 " sectors.\n",
 558                     diskStructure.pathTableLength, pathTableSectors);
 559
 560         startoffset = diskStructure.sectorSize*diskStructure.dataFirstSector;
 561
 562         totalSpace = cd9660_compute_offsets(real_root, startoffset);
 563
 564         diskStructure.totalSectors = diskStructure.dataFirstSector +
 565                 CD9660_BLOCKS(diskStructure.sectorSize, totalSpace);
 566
 567         /* Disabled until pass 1 is done */
 568         if (diskStructure.rock_ridge_enabled) {
 569                 diskStructure.susp_continuation_area_start_sector =
 570                     diskStructure.totalSectors;
 571                 diskStructure.totalSectors +=
 572                     CD9660_BLOCKS(diskStructure.sectorSize,
 573                         diskStructure.susp_continuation_area_size);
 574                 cd9660_susp_finalize(diskStructure.rootNode);
 575         }
 576
 577
 578         cd9660_finalize_PVD();
 579
 580         /* Add padding sectors, just for testing purposes right now */
 581         /* diskStructure.totalSectors+=150; */
 582
 583         /* Debugging output */
 584         if (diskStructure.verbose_level > 0) {
 585                 printf("cd9660_makefs: Sectors 0-15 reserved\n");
 586                 printf("cd9660_makefs: Primary path tables starts in sector %"
 587                     PRId64 "\n", diskStructure.primaryLittleEndianTableSector);
 588                 printf("cd9660_makefs: File data starts in sector %"
 589                     PRId64 "\n", diskStructure.dataFirstSector);
 590                 printf("cd9660_makefs: Total sectors: %"
 591                     PRId64 "\n", diskStructure.totalSectors);
 592         }
 593
 594         /*
 595          * Add padding sectors at the end
 596          * TODO: Clean this up and separate padding
 597          */
 598         if (diskStructure.include_padding_areas)
 599                 diskStructure.totalSectors += 150;
 600
 601         cd9660_write_image(image);
 602
 603         if (diskStructure.verbose_level > 1) {
 604                 debug_print_volume_descriptor_information();
 605                 debug_print_tree(real_root,0);
 606                 debug_print_path_tree(real_root);
 607         }
 608
 609         /* Clean up data structures */
 610         cd9660_free_structure(real_root);
 611
 612         if (diskStructure.verbose_level > 0)
 613                 printf("cd9660_makefs: done\n");
 614 }
 615
 616 /* Generic function pointer - implement later */
 617 typedef int (*cd9660node_func)(cd9660node *);
 618
 619 static void
 620 cd9660_finalize_PVD(void)
 621 {
 622         time_t tim;
 623
 624         /* root should be a fixed size of 34 bytes since it has no name */
 625         memcpy(diskStructure.primaryDescriptor.root_directory_record,
 626                 diskStructure.rootNode->dot_record->isoDirRecord, 34);
 627
 628         /* In RRIP, this might be longer than 34 */
 629         diskStructure.primaryDescriptor.root_directory_record[0] = 34;
 630
 631         /* Set up all the important numbers in the PVD */
 632         cd9660_bothendian_dword(diskStructure.totalSectors,
 633             (unsigned char *)diskStructure.primaryDescriptor.volume_space_size);
 634         cd9660_bothendian_word(1,
 635             (unsigned char *)diskStructure.primaryDescriptor.volume_set_size);
 636         cd9660_bothendian_word(1,
 637             (unsigned char *)
 638                 diskStructure.primaryDescriptor.volume_sequence_number);
 639         cd9660_bothendian_word(diskStructure.sectorSize,
 640             (unsigned char *)
 641                 diskStructure.primaryDescriptor.logical_block_size);
 642         cd9660_bothendian_dword(diskStructure.pathTableLength,
 643             (unsigned char *)diskStructure.primaryDescriptor.path_table_size);
 644
 645         cd9660_731(diskStructure.primaryLittleEndianTableSector,
 646                 (u_char *)diskStructure.primaryDescriptor.type_l_path_table);
 647         cd9660_732(diskStructure.primaryBigEndianTableSector,
 648                 (u_char *)diskStructure.primaryDescriptor.type_m_path_table);
 649
 650         diskStructure.primaryDescriptor.file_structure_version[0] = 1;
 651
 652         /* Pad all strings with spaces instead of nulls */
 653         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_id, 32);
 654         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.system_id, 32);
 655         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_set_id,
 656             128);
 657         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.publisher_id,
 658             128);
 659         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.preparer_id,
 660             128);
 661         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.application_id,
 662             128);
 663         cd9660_pad_string_spaces(
 664             diskStructure.primaryDescriptor.copyright_file_id, 37);
 665         cd9660_pad_string_spaces(
 666                 diskStructure.primaryDescriptor.abstract_file_id, 37);
 667         cd9660_pad_string_spaces(
 668                 diskStructure.primaryDescriptor.bibliographic_file_id, 37);
 669
 670         /* Setup dates */
 671         time(&tim);
 672         cd9660_time_8426(
 673             (unsigned char *)diskStructure.primaryDescriptor.creation_date,
 674             tim);
 675         cd9660_time_8426(
 676             (unsigned char *)diskStructure.primaryDescriptor.modification_date,
 677             tim);
 678
 679         /*
 680         cd9660_set_date(diskStructure.primaryDescriptor.expiration_date, now);
 681         */
 682
 683         memset(diskStructure.primaryDescriptor.expiration_date, '0', 16);
 684         diskStructure.primaryDescriptor.expiration_date[16] = 0;
 685         cd9660_time_8426(
 686             (unsigned char *)diskStructure.primaryDescriptor.effective_date,
 687             tim);
 688 }
 689
 690 static void
 691 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record,
 692                                u_char ext_attr_length, u_char flags,
 693                                u_char name_len, const char * name)
 694 {
 695         record->ext_attr_length[0] = ext_attr_length;
 696         record->flags[0] = ISO_FLAG_CLEAR | flags;
 697         record->file_unit_size[0] = 0;
 698         record->interleave[0] = 0;
 699         cd9660_bothendian_word(1, record->volume_sequence_number);
 700         record->name_len[0] = name_len;
 701         memset(record->name, '\0', sizeof (record->name));
 702         memcpy(record->name, name, name_len);
 703         record->length[0] = 33 + name_len;
 704
 705         /* Todo : better rounding */
 706         record->length[0] += (record->length[0] & 1) ? 1 : 0;
 707 }
 708
 709 static void
 710 cd9660_setup_root_node(void)
 711 {
 712         cd9660_populate_iso_dir_record(diskStructure.rootNode->isoDirRecord,
 713             0, ISO_FLAG_DIRECTORY, 1, "\0");
 714
 715 }
 716
 717 /*********** SUPPORT FUNCTIONS ***********/
 718 static int
 719 cd9660_setup_volume_descriptors(void)
 720 {
 721         /* Boot volume descriptor should come second */
 722         int sector = 16;
 723         /* For now, a fixed 2 : PVD and terminator */
 724         volume_descriptor *temp, *t;
 725
 726         /* Set up the PVD */
 727         if ((temp = malloc(sizeof(volume_descriptor))) == NULL) {
 728                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 729                 exit(1);
 730         }
 731
 732         temp->volumeDescriptorData =
 733            (unsigned char *)&diskStructure.primaryDescriptor;
 734         temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD;
 735         temp->volumeDescriptorData[6] = 1;
 736         temp->sector = sector;
 737         memcpy(temp->volumeDescriptorData + 1,
 738             ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
 739         diskStructure.firstVolumeDescriptor = temp;
 740
 741         sector++;
 742         /* Set up boot support if enabled. BVD must reside in sector 17 */
 743         if (diskStructure.is_bootable) {
 744                 if ((t = malloc(sizeof(volume_descriptor))) == NULL) {
 745                         CD9660_MEM_ALLOC_ERROR(
 746                             "cd9660_setup_volume_descriptors");
 747                         exit(1);
 748                 }
 749                 if ((t->volumeDescriptorData = malloc(2048)) == NULL) {
 750                         CD9660_MEM_ALLOC_ERROR(
 751                             "cd9660_setup_volume_descriptors");
 752                         exit(1);
 753                 }
 754                 temp->next = t;
 755                 temp = t;
 756                 memset(t->volumeDescriptorData, 0, 2048);
 757                 t->sector = 17;
 758                 if (diskStructure.verbose_level > 0)
 759                         printf("Setting up boot volume descriptor\n");
 760                 cd9660_setup_boot_volume_descriptor(t);
 761                 sector++;
 762         }
 763
 764         /* Set up the terminator */
 765         if ((t = malloc(sizeof(volume_descriptor))) == NULL) {
 766                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 767                 exit(1);
 768         }
 769         if ((t->volumeDescriptorData = malloc(2048)) == NULL) {
 770                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 771                 exit(1);
 772         }
 773
 774         temp->next = t;
 775         memset(t->volumeDescriptorData, 0, 2048);
 776         t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR;
 777         t->next = 0;
 778         t->volumeDescriptorData[6] = 1;
 779         t->sector = sector;
 780         memcpy(t->volumeDescriptorData + 1,
 781             ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
 782
 783         sector++;
 784         return sector;
 785 }
 786
 787 #if 0
 788 /*
 789  * Populate EAR at some point. Not required, but is used by NetBSD's
 790  * cd9660 support
 791  */
 792 static int
 793 cd9660_fill_extended_attribute_record(cd9660node *node)
 794 {
 795         if ((node->isoExtAttributes =
 796             malloc(sizeof(struct iso_extended_attributes))) == NULL) {
 797                 CD9660_MEM_ALLOC_ERROR("cd9660_fill_extended_attribute_record");
 798                 exit(1);
 799         };
 800
 801         return 1;
 802 }
 803 #endif
 804
 805 static int
 806 cd9660_translate_node_common(cd9660node *newnode)
 807 {
 808         time_t tim;
 809         int test;
 810         u_char flag;
 811         char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING];
 812
 813         /* Now populate the isoDirRecord structure */
 814         memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
 815
 816         test = cd9660_convert_filename(newnode->node->name,
 817                 temp, !(S_ISDIR(newnode->node->type)));
 818
 819         flag = ISO_FLAG_CLEAR;
 820         if (S_ISDIR(newnode->node->type))
 821                 flag |= ISO_FLAG_DIRECTORY;
 822
 823         cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0,
 824             flag, strlen(temp), temp);
 825
 826         /* Set the various dates */
 827
 828         /* If we want to use the current date and time */
 829         time(&tim);
 830
 831         cd9660_time_915(newnode->isoDirRecord->date, tim);
 832
 833         cd9660_bothendian_dword(newnode->fileDataLength,
 834             newnode->isoDirRecord->size);
 835         /* If the file is a link, we want to set the size to 0 */
 836         if (S_ISLNK(newnode->node->type))
 837                 newnode->fileDataLength = 0;
 838
 839         return 1;
 840 }
 841
 842 /*
 843  * Translate fsnode to cd9660node
 844  * Translate filenames and other metadata, including dates, sizes,
 845  * permissions, etc
 846  * @param struct fsnode * The node generated by makefs
 847  * @param struct cd9660node * The intermediate node to be written to
 848  * @returns int 0 on failure, 1 on success
 849  */
 850 static int
 851 cd9660_translate_node(fsnode *node, cd9660node *newnode)
 852 {
 853         if (node == NULL) {
 854                 if (diskStructure.verbose_level > 0)
 855                         printf("cd9660_translate_node: NULL node passed, "
 856                                "returning\n");
 857                 return 0;
 858         }
 859         if ((newnode->isoDirRecord =
 860                 malloc(sizeof(iso_directory_record_cd9660))) == NULL) {
 861                 CD9660_MEM_ALLOC_ERROR("cd9660_translate_node");
 862                 return 0;
 863         }
 864
 865         /* Set the node pointer */
 866         newnode->node = node;
 867
 868         /* Set the size */
 869         if (!(S_ISDIR(node->type)))
 870                 newnode->fileDataLength = node->inode->st.st_size;
 871
 872         if (cd9660_translate_node_common(newnode) == 0)
 873                 return 0;
 874
 875         /* Finally, overwrite some of the values that are set by default */
 876         cd9660_time_915(newnode->isoDirRecord->date, node->inode->st.st_mtime);
 877
 878         return 1;
 879 }
 880
 881 /*
 882  * Compares two ISO filenames
 883  * @param const char * The first file name
 884  * @param const char * The second file name
 885  * @returns : -1 if first is less than second, 0 if they are the same, 1 if
 886  *      the second is greater than the first
 887  */
 888 static int
 889 cd9660_compare_filename(const char *first, const char *second)
 890 {
 891         /*
 892          * This can be made more optimal once it has been tested
 893          * (the extra character, for example, is for testing)
 894          */
 895
 896         int p1 = 0;
 897         int p2 = 0;
 898         char c1, c2;
 899         /* First, on the filename */
 900
 901         while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1
 902                 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) {
 903                 c1 = first[p1];
 904                 c2 = second[p2];
 905                 if (c1 == '.' && c2 =='.')
 906                         break;
 907                 else if (c1 == '.') {
 908                         p2++;
 909                         c1 = ' ';
 910                 } else if (c2 == '.') {
 911                         p1++;
 912                         c2 = ' ';
 913                 } else {
 914                         p1++;
 915                         p2++;
 916                 }
 917
 918                 if (c1 < c2)
 919                         return -1;
 920                 else if (c1 > c2) {
 921                         return 1;
 922                 }
 923         }
 924
 925         if (first[p1] == '.' && second[p2] == '.') {
 926                 p1++;
 927                 p2++;
 928                 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1
 929                         && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) {
 930                         c1 = first[p1];
 931                         c2 = second[p2];
 932                         if (c1 == ';' && c2 == ';')
 933                                 break;
 934                         else if (c1 == ';') {
 935                                 p2++;
 936                                 c1 = ' ';
 937                         } else if (c2 == ';') {
 938                                 p1++;
 939                                 c2 = ' ';
 940                         } else {
 941                                 p1++;
 942                                 p2++;
 943                         }
 944
 945                         if (c1 < c2)
 946                                 return -1;
 947                         else if (c1 > c2)
 948                                 return 1;
 949                 }
 950         }
 951         return 0;
 952 }
 953
 954 /*
 955  * Insert a node into list with ISO sorting rules
 956  * @param cd9660node * The head node of the list
 957  * @param cd9660node * The node to be inserted
 958  */
 959 static void
 960 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new)
 961 {
 962         int compare;
 963         cd9660node *cn;
 964         struct cd9660_children_head *head = &parent->cn_children;
 965
 966         /* TODO: Optimize? */
 967         cn_new->parent = parent;
 968
 969         /*
 970          * first will either be 0, the . or the ..
 971          * if . or .., this means no other entry may be written before first
 972          * if 0, the new node may be inserted at the head
 973          */
 974
 975         TAILQ_FOREACH(cn, head, cn_next_child) {
 976                 /*
 977                  * Dont insert a node twice -
 978                  * that would cause an infinite loop
 979                  */
 980                 if (cn_new == cn)
 981                         return;
 982
 983                 compare = cd9660_compare_filename(cn_new->isoDirRecord->name,
 984                         cn->isoDirRecord->name);
 985
 986                 if (compare == 0)
 987                         compare = cd9660_compare_filename(cn_new->node->name,
 988                                 cn->node->name);
 989
 990                 if (compare < 0)
 991                         break;
 992         }
 993         if (cn == NULL)
 994                 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child);
 995         else
 996                 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child);
 997 }
 998
 999 /*
1000  * Called After cd9660_sorted_child_insert
1001  * handles file collisions by suffixing each filname with ~n
1002  * where n represents the files respective place in the ordering
1003  */
1004 static int
1005 cd9660_handle_collisions(cd9660node *colliding, int past)
1006 {
1007         cd9660node *iter, *next, *prev;
1008         int skip;
1009         int delete_chars = 0;
1010         int temp_past = past;
1011         int temp_skip;
1012         int flag = 0;
1013         cd9660node *end_of_range;
1014
1015         for (iter = TAILQ_FIRST(&colliding->cn_children);
1016              iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) {
1017                 if (strcmp(iter->isoDirRecord->name,
1018                            next->isoDirRecord->name) != 0) {
1019                         iter = TAILQ_NEXT(iter, cn_next_child);
1020                         continue;
1021                 }
1022                 flag = 1;
1023                 temp_skip = skip = cd9660_count_collisions(iter);
1024                 end_of_range = iter;
1025                 while (temp_skip > 0) {
1026                         temp_skip--;
1027                         end_of_range = TAILQ_NEXT(end_of_range, cn_next_child);
1028                 }
1029                 temp_past = past;
1030                 while (temp_past > 0) {
1031                         if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL)
1032                                 end_of_range = next;
1033                         else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL)
1034                                 iter = prev;
1035                         else
1036                                 delete_chars++;
1037                         temp_past--;
1038                 }
1039                 skip += past;
1040                 iter = cd9660_rename_filename(iter, skip, delete_chars);
1041         }
1042         return flag;
1043 }
1044
1045
1046 static cd9660node *
1047 cd9660_rename_filename(cd9660node *iter, int num, int delete_chars)
1048 {
1049         int i = 0;
1050         int numbts, digit, digits, temp, powers, count;
1051         char *naming;
1052         int maxlength;
1053         char *tmp;
1054
1055         if (diskStructure.verbose_level > 0)
1056                 printf("Rename_filename called\n");
1057
1058         assert(1 <= diskStructure.isoLevel && diskStructure.isoLevel <= 2);
1059         /* TODO : A LOT of chanes regarding 8.3 filenames */
1060         if (diskStructure.isoLevel == 1)
1061                 maxlength = 8;
1062         else if (diskStructure.isoLevel == 2)
1063                 maxlength = 31;
1064         else
1065                 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION;
1066
1067         tmp = malloc(ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1068
1069         while (i < num) {
1070                 powers = 1;
1071                 count = 0;
1072                 digits = 1;
1073                 while (((int)(i / powers) ) >= 10) {
1074                         digits++;
1075                         powers = powers * 10;
1076                 }
1077
1078                 naming = iter->o_name;
1079
1080                 /*
1081                 while ((*naming != '.') && (*naming != ';')) {
1082                         naming++;
1083                         count++;
1084                 }
1085                 */
1086
1087                 while (count < maxlength) {
1088                         if (*naming == ';')
1089                                 break;
1090                         naming++;
1091                         count++;
1092                 }
1093
1094                 if ((count + digits) < maxlength)
1095                         numbts = count;
1096                 else
1097                         numbts = maxlength - (digits);
1098                 numbts -= delete_chars;
1099
1100                 /* 8.3 rules - keep the extension, add before the dot */
1101
1102                 /*
1103                  * This code makes a bunch of assumptions.
1104                  * See if you can spot them all :)
1105                  */
1106
1107                 /*
1108                 if (diskStructure.isoLevel == 1) {
1109                         numbts = 8 - digits - delete_chars;
1110                         if (dot < 0) {
1111
1112                         } else {
1113                                 if (dot < 8) {
1114                                         memmove(&tmp[numbts],&tmp[dot],4);
1115                                 }
1116                         }
1117                 }
1118                 */
1119
1120                 /* (copying just the filename before the '.' */
1121                 memcpy(tmp, (iter->o_name), numbts);
1122
1123                 /* adding the appropriate number following the name */
1124                 temp = i;
1125                 while (digits > 0) {
1126                         digit = (int)(temp / powers);
1127                         temp = temp - digit * powers;
1128                         sprintf(&tmp[numbts] , "%d", digit);
1129                         digits--;
1130                         numbts++;
1131                         powers = powers / 10;
1132                 }
1133
1134                 while ((*naming != ';')  && (numbts < maxlength)) {
1135                         tmp[numbts] = (*naming);
1136                         naming++;
1137                         numbts++;
1138                 }
1139
1140                 tmp[numbts] = ';';
1141                 tmp[numbts+1] = '1';
1142                 tmp[numbts+2] = '\0';
1143
1144                 /*
1145                  * now tmp has exactly the identifier
1146                  * we want so we'll copy it back to record
1147                  */
1148                 memcpy((iter->isoDirRecord->name), tmp, numbts + 3);
1149
1150                 iter = TAILQ_NEXT(iter, cn_next_child);
1151                 i++;
1152         }
1153
1154         free(tmp);
1155         return iter;
1156 }
1157
1158 /* Todo: Figure out why these functions are nec. */
1159 static void
1160 cd9660_copy_filenames(cd9660node *node)
1161 {
1162         cd9660node *cn;
1163
1164         if (TAILQ_EMPTY(&node->cn_children))
1165                 return;
1166
1167         if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) {
1168                 debug_print_tree(diskStructure.rootNode, 0);
1169                 exit(1);
1170         }
1171
1172         TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1173                 cd9660_copy_filenames(cn);
1174                 memcpy(cn->o_name, cn->isoDirRecord->name,
1175                     ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1176         }
1177 }
1178
1179 static void
1180 cd9660_sorting_nodes(cd9660node *node)
1181 {
1182         cd9660node *cn;
1183
1184         TAILQ_FOREACH(cn, &node->cn_children, cn_next_child)
1185                 cd9660_sorting_nodes(cn);
1186         cd9660_sort_nodes(node);
1187 }
1188
1189 /* XXX Bubble sort. */
1190 static void
1191 cd9660_sort_nodes(cd9660node *node)
1192 {
1193         cd9660node *cn, *next;
1194
1195         do {
1196                 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1197                         if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL)
1198                                 return;
1199                         else if (strcmp(next->isoDirRecord->name,
1200                                         cn->isoDirRecord->name) >= 0)
1201                                 continue;
1202                         TAILQ_REMOVE(&node->cn_children, next, cn_next_child);
1203                         TAILQ_INSERT_BEFORE(cn, next, cn_next_child);
1204                         break;
1205                 }
1206         } while (cn != NULL);
1207 }
1208
1209 static int
1210 cd9660_count_collisions(cd9660node *copy)
1211 {
1212         int count = 0;
1213         cd9660node *iter, *next;
1214
1215         for (iter = copy;
1216              (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;
1217              iter = next) {
1218                 if (cd9660_compare_filename(iter->isoDirRecord->name,
1219                         next->isoDirRecord->name) == 0)
1220                         count++;
1221                 else
1222                         return count;
1223         }
1224 #if 0
1225         if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) {
1226                 printf("cd9660_recurse_on_collision: count is %i \n", count);
1227                 compare = cd9660_compare_filename(iter->isoDirRecord->name,
1228                         next->isoDirRecord->name);
1229                 if (compare == 0) {
1230                         count++;
1231                         return cd9660_recurse_on_collision(next, count);
1232                 } else
1233                         return count;
1234         }
1235 #endif
1236         return count;
1237 }
1238
1239 static cd9660node *
1240 cd9660_rrip_move_directory(cd9660node *dir)
1241 {
1242         char newname[9];
1243         cd9660node *tfile;
1244
1245         /*
1246          * This function needs to:
1247          * 1) Create an empty virtual file in place of the old directory
1248          * 2) Point the virtual file to the new directory
1249          * 3) Point the relocated directory to its old parent
1250          * 4) Move the directory specified by dir into rr_moved_dir,
1251          * and rename it to "diskStructure.rock_ridge_move_count" (as a string)
1252          */
1253
1254         /* First see if the moved directory even exists */
1255         if (diskStructure.rr_moved_dir == NULL) {
1256                 diskStructure.rr_moved_dir =
1257                         cd9660_create_directory(ISO_RRIP_DEFAULT_MOVE_DIR_NAME,
1258                                 diskStructure.rootNode, dir);
1259                 if (diskStructure.rr_moved_dir == NULL)
1260                         return 0;
1261         }
1262
1263         /* Create a file with the same ORIGINAL name */
1264         tfile = cd9660_create_file(dir->node->name, dir->parent, dir);
1265         if (tfile == NULL)
1266                 return NULL;
1267
1268         diskStructure.rock_ridge_move_count++;
1269         snprintf(newname, sizeof(newname), "%08i",
1270             diskStructure.rock_ridge_move_count);
1271
1272         /* Point to old parent */
1273         dir->rr_real_parent = dir->parent;
1274
1275         /* Place the placeholder file */
1276         if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) {
1277                 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile,
1278                     cn_next_child);
1279         } else {
1280                 cd9660_sorted_child_insert(dir->rr_real_parent, tfile);
1281         }
1282
1283         /* Point to new parent */
1284         dir->parent = diskStructure.rr_moved_dir;
1285
1286         /* Point the file to the moved directory */
1287         tfile->rr_relocated = dir;
1288
1289         /* Actually move the directory */
1290         cd9660_sorted_child_insert(diskStructure.rr_moved_dir, dir);
1291
1292         /* TODO: Inherit permissions / ownership (basically the entire inode) */
1293
1294         /* Set the new name */
1295         memset(dir->isoDirRecord->name, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1296         strncpy(dir->isoDirRecord->name, newname, 8);
1297         dir->isoDirRecord->length[0] = 34 + 8;
1298         dir->isoDirRecord->name_len[0] = 8;
1299
1300         return dir;
1301 }
1302
1303 static int
1304 cd9660_add_dot_records(cd9660node *root)
1305 {
1306         struct cd9660_children_head *head = &root->cn_children;
1307         cd9660node *cn;
1308
1309         TAILQ_FOREACH(cn, head, cn_next_child) {
1310                 if ((cn->type & CD9660_TYPE_DIR) == 0)
1311                         continue;
1312                 /* Recursion first */
1313                 cd9660_add_dot_records(cn);
1314         }
1315         cd9660_create_special_directory(CD9660_TYPE_DOT, root);
1316         cd9660_create_special_directory(CD9660_TYPE_DOTDOT, root);
1317         return 1;
1318 }
1319
1320 /*
1321  * Convert node to cd9660 structure
1322  * This function is designed to be called recursively on the root node of
1323  * the filesystem
1324  * Lots of recursion going on here, want to make sure it is efficient
1325  * @param struct fsnode * The root node to be converted
1326  * @param struct cd9660* The parent node (should not be NULL)
1327  * @param int Current directory depth
1328  * @param int* Running count of the number of directories that are being created
1329  */
1330 static void
1331 cd9660_convert_structure(fsnode *root, cd9660node *parent_node, int level,
1332                          int *numDirectories, int *error)
1333 {
1334         fsnode *iterator = root;
1335         cd9660node *this_node;
1336         int working_level;
1337         int add;
1338         int flag = 0;
1339         int counter = 0;
1340
1341         /*
1342          * Newer, more efficient method, reduces recursion depth
1343          */
1344         if (root == NULL) {
1345                 warnx("%s: root is null\n", __func__);
1346                 return;
1347         }
1348
1349         /* Test for an empty directory - makefs still gives us the . record */
1350         if ((S_ISDIR(root->type)) && (root->name[0] == '.')
1351                 && (root->name[1] == '\0')) {
1352                 root = root->next;
1353                 if (root == NULL)
1354                         return;
1355         }
1356         if ((this_node = cd9660_allocate_cd9660node()) == NULL) {
1357                 CD9660_MEM_ALLOC_ERROR(__func__);
1358         }
1359
1360         /*
1361          * To reduce the number of recursive calls, we will iterate over
1362          * the next pointers to the right.
1363          */
1364         while (iterator != NULL) {
1365                 add = 1;
1366                 /*
1367                  * Increment the directory count if this is a directory
1368                  * Ignore "." entries. We will generate them later
1369                  */
1370                 if (!S_ISDIR(iterator->type) ||
1371                     strcmp(iterator->name, ".") != 0) {
1372
1373                         /* Translate the node, including its filename */
1374                         this_node->parent = parent_node;
1375                         cd9660_translate_node(iterator, this_node);
1376                         this_node->level = level;
1377
1378                         if (S_ISDIR(iterator->type)) {
1379                                 (*numDirectories)++;
1380                                 this_node->type = CD9660_TYPE_DIR;
1381                                 working_level = level + 1;
1382
1383                                 /*
1384                                  * If at level 8, directory would be at 8
1385                                  * and have children at 9 which is not
1386                                  * allowed as per ISO spec
1387                                  */
1388                                 if (level == 8) {
1389                                         if ((!diskStructure.allow_deep_trees) &&
1390                                           (!diskStructure.rock_ridge_enabled)) {
1391                                                 warnx("error: found entry "
1392                                                      "with depth greater "
1393                                                      "than 8.");
1394                                                 (*error) = 1;
1395                                                 return;
1396                                         } else if (diskStructure.
1397                                                    rock_ridge_enabled) {
1398                                                 working_level = 3;
1399                                                 /*
1400                                                  * Moved directory is actually
1401                                                  * at level 2.
1402                                                  */
1403                                                 this_node->level =
1404                                                     working_level - 1;
1405                                                 if (cd9660_rrip_move_directory(
1406                                                         this_node) == 0) {
1407                                                         warnx("Failure in "
1408                                                               "cd9660_rrip_"
1409                                                               "move_directory"
1410                                                         );
1411                                                         (*error) = 1;
1412                                                         return;
1413                                                 }
1414                                                 add = 0;
1415                                         }
1416                                 }
1417
1418                                 /* Do the recursive call on the children */
1419                                 if (iterator->child != 0) {
1420                                         cd9660_convert_structure(
1421                                             iterator->child, this_node,
1422                                                 working_level,
1423                                                 numDirectories, error);
1424
1425                                         if ((*error) == 1) {
1426                                                 warnx("%s: Error on recursive "
1427                                                     "call", __func__);
1428                                                 return;
1429                                         }
1430                                 }
1431
1432                         } else {
1433                                 /* Only directories should have children */
1434                                 assert(iterator->child == NULL);
1435
1436                                 this_node->type = CD9660_TYPE_FILE;
1437                         }
1438
1439                         /*
1440                          * Finally, do a sorted insert
1441                          */
1442                         if (add) {
1443                                 cd9660_sorted_child_insert(
1444                                     parent_node, this_node);
1445                         }
1446
1447                         /*Allocate new temp_node */
1448                         if (iterator->next != 0) {
1449                                 this_node = cd9660_allocate_cd9660node();
1450                                 if (this_node == NULL)
1451                                         CD9660_MEM_ALLOC_ERROR(__func__);
1452                         }
1453                 }
1454                 iterator = iterator->next;
1455         }
1456
1457         /* cd9660_handle_collisions(first_node); */
1458
1459         /* TODO: need cleanup */
1460         cd9660_copy_filenames(parent_node);
1461
1462         do {
1463                 flag = cd9660_handle_collisions(parent_node, counter);
1464                 counter++;
1465                 cd9660_sorting_nodes(parent_node);
1466         } while ((flag == 1) && (counter < 100));
1467 }
1468
1469 /*
1470  * Clean up the cd9660node tree
1471  * This is designed to be called recursively on the root node
1472  * @param struct cd9660node *root The node to free
1473  * @returns void
1474  */
1475 static void
1476 cd9660_free_structure(cd9660node *root)
1477 {
1478         cd9660node *cn;
1479
1480         while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) {
1481                 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child);
1482                 cd9660_free_structure(cn);
1483         }
1484         free(root);
1485 }
1486
1487 /*
1488  * Be a little more memory conservative:
1489  * instead of having the TAILQ_ENTRY as part of the cd9660node,
1490  * just create a temporary structure
1491  */
1492 struct ptq_entry
1493 {
1494         TAILQ_ENTRY(ptq_entry) ptq;
1495         cd9660node *node;
1496 } *n;
1497
1498 #define PTQUEUE_NEW(n,s,r,t){\
1499         n = malloc(sizeof(struct s));   \
1500         if (n == NULL)  \
1501                 return r; \
1502         n->node = t;\
1503 }
1504
1505 /*
1506  * Generate the path tables
1507  * The specific implementation of this function is left as an exercise to the
1508  * programmer. It could be done recursively. Make sure you read how the path
1509  * table has to be laid out, it has levels.
1510  * @param struct iso9660_disk *disk The disk image
1511  * @returns int The number of built path tables (between 1 and 4), 0 on failure
1512  */
1513 static int
1514 cd9660_generate_path_table(void)
1515 {
1516         cd9660node *cn, *dirNode = diskStructure.rootNode;
1517         cd9660node *last = dirNode;
1518         int pathTableSize = 0;  /* computed as we go */
1519         int counter = 1;        /* root gets a count of 0 */
1520
1521         TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head;
1522         TAILQ_INIT(&pt_head);
1523
1524         PTQUEUE_NEW(n, ptq_entry, -1, diskStructure.rootNode);
1525
1526         /* Push the root node */
1527         TAILQ_INSERT_HEAD(&pt_head, n, ptq);
1528
1529         /* Breadth-first traversal of file structure */
1530         while (pt_head.tqh_first != 0) {
1531                 n = pt_head.tqh_first;
1532                 dirNode = n->node;
1533                 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq);
1534                 free(n);
1535
1536                 /* Update the size */
1537                 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE
1538                     + dirNode->isoDirRecord->name_len[0]+
1539                         (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1);
1540                         /* includes the padding bit */
1541
1542                 dirNode->ptnumber=counter;
1543                 if (dirNode != last) {
1544                         last->ptnext = dirNode;
1545                         dirNode->ptprev = last;
1546                 }
1547                 last = dirNode;
1548
1549                 /* Push children onto queue */
1550                 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) {
1551                         /*
1552                          * Dont add the DOT and DOTDOT types to the path
1553                          * table.
1554                          */
1555                         if ((cn->type != CD9660_TYPE_DOT)
1556                                 && (cn->type != CD9660_TYPE_DOTDOT)) {
1557
1558                                 if (S_ISDIR(cn->node->type)) {
1559                                         PTQUEUE_NEW(n, ptq_entry, -1, cn);
1560                                         TAILQ_INSERT_TAIL(&pt_head, n, ptq);
1561                                 }
1562                         }
1563                 }
1564                 counter++;
1565         }
1566         return pathTableSize;
1567 }
1568
1569 void
1570 cd9660_compute_full_filename(cd9660node *node, char *buf)
1571 {
1572         int len;
1573
1574         len = CD9660MAXPATH + 1;
1575         len = snprintf(buf, len, "%s/%s/%s", node->node->root,
1576             node->node->path, node->node->name);
1577         if (len > CD9660MAXPATH)
1578                 errx(1, "Pathname too long.");
1579 }
1580
1581 /* NEW filename conversion method */
1582 typedef int(*cd9660_filename_conversion_functor)(const char *, char *, int);
1583
1584
1585 /*
1586  * TODO: These two functions are almost identical.
1587  * Some code cleanup is possible here
1588  *
1589  * XXX bounds checking!
1590  */
1591 static int
1592 cd9660_level1_convert_filename(const char *oldname, char *newname, int is_file)
1593 {
1594         /*
1595          * ISO 9660 : 10.1
1596          * File Name shall not contain more than 8 d or d1 characters
1597          * File Name Extension shall not contain more than 3 d or d1 characters
1598          * Directory Identifier shall not contain more than 8 d or d1 characters
1599          */
1600         int namelen = 0;
1601         int extlen = 0;
1602         int found_ext = 0;
1603
1604         while (*oldname != '\0' && extlen < 3) {
1605                 /* Handle period first, as it is special */
1606                 if (*oldname == '.') {
1607                         if (found_ext) {
1608                                 *newname++ = '_';
1609                                 extlen ++;
1610                         }
1611                         else {
1612                                 *newname++ = '.';
1613                                 found_ext = 1;
1614                         }
1615                 } else {
1616                         /* cut RISC OS file type off ISO name */
1617                         if (diskStructure.archimedes_enabled &&
1618                             *oldname == ',' && strlen(oldname) == 4)
1619                                 break;
1620                         /* Enforce 12.3 / 8 */
1621                         if (namelen == 8 && !found_ext)
1622                                 break;
1623
1624                         if (islower((unsigned char)*oldname))
1625                                 *newname++ = toupper((unsigned char)*oldname);
1626                         else if (isupper((unsigned char)*oldname)
1627                                     || isdigit((unsigned char)*oldname))
1628                                 *newname++ = *oldname;
1629                         else
1630                                 *newname++ = '_';
1631
1632                         if (found_ext)
1633                                 extlen++;
1634                         else
1635                                 namelen++;
1636                 }
1637                 oldname ++;
1638         }
1639         if (is_file) {
1640                 if (!found_ext && !diskStructure.omit_trailing_period)
1641                         *newname++ = '.';
1642                 /* Add version */
1643                 sprintf(newname, ";%i", 1);
1644         }
1645         return namelen + extlen + found_ext;
1646 }
1647
1648 /* XXX bounds checking! */
1649 static int
1650 cd9660_level2_convert_filename(const char *oldname, char *newname, int is_file)
1651 {
1652         /*
1653          * ISO 9660 : 7.5.1
1654          * File name : 0+ d or d1 characters
1655          * separator 1 (.)
1656          * File name extension : 0+ d or d1 characters
1657          * separator 2 (;)
1658          * File version number (5 characters, 1-32767)
1659          * 1 <= Sum of File name and File name extension <= 30
1660          */
1661         int namelen = 0;
1662         int extlen = 0;
1663         int found_ext = 0;
1664
1665         while (*oldname != '\0' && namelen + extlen < 30) {
1666                 /* Handle period first, as it is special */
1667                 if (*oldname == '.') {
1668                         if (found_ext) {
1669                                 if (diskStructure.allow_multidot) {
1670                                         *newname++ = '.';
1671                                 } else {
1672                                         *newname++ = '_';
1673                                 }
1674                                 extlen ++;
1675                         }
1676                         else {
1677                                 *newname++ = '.';
1678                                 found_ext = 1;
1679                         }
1680                 } else {
1681                         /* cut RISC OS file type off ISO name */
1682                         if (diskStructure.archimedes_enabled &&
1683                             *oldname == ',' && strlen(oldname) == 4)
1684                                 break;
1685
1686                          if (islower((unsigned char)*oldname))
1687                                 *newname++ = toupper((unsigned char)*oldname);
1688                         else if (isupper((unsigned char)*oldname) ||
1689                             isdigit((unsigned char)*oldname))
1690                                 *newname++ = *oldname;
1691                         else if (diskStructure.allow_multidot &&
1692                             *oldname == '.') {
1693                                 *newname++ = '.';
1694                         } else {
1695                                 *newname++ = '_';
1696                         }
1697
1698                         if (found_ext)
1699                                 extlen++;
1700                         else
1701                                 namelen++;
1702                 }
1703                 oldname ++;
1704         }
1705         if (is_file) {
1706                 if (!found_ext && !diskStructure.omit_trailing_period)
1707                         *newname++ = '.';
1708                 /* Add version */
1709                 sprintf(newname, ";%i", 1);
1710         }
1711         return namelen + extlen + found_ext;
1712 }
1713
1714 #if 0
1715 static int
1716 cd9660_joliet_convert_filename(const char *oldname, char *newname, int is_file)
1717 {
1718         /* TODO: implement later, move to cd9660_joliet.c ?? */
1719 }
1720 #endif
1721
1722
1723 /*
1724  * Convert a file name to ISO compliant file name
1725  * @param char * oldname The original filename
1726  * @param char ** newname The new file name, in the appropriate character
1727  *                        set and of appropriate length
1728  * @param int 1 if file, 0 if directory
1729  * @returns int The length of the new string
1730  */
1731 static int
1732 cd9660_convert_filename(const char *oldname, char *newname, int is_file)
1733 {
1734         assert(1 <= diskStructure.isoLevel && diskStructure.isoLevel <= 2);
1735         /* NEW */
1736         cd9660_filename_conversion_functor conversion_function = 0;
1737         if (diskStructure.isoLevel == 1)
1738                 conversion_function = &cd9660_level1_convert_filename;
1739         else if (diskStructure.isoLevel == 2)
1740                 conversion_function = &cd9660_level2_convert_filename;
1741         return (*conversion_function)(oldname, newname, is_file);
1742 }
1743
1744 int
1745 cd9660_compute_record_size(cd9660node *node)
1746 {
1747         int size = node->isoDirRecord->length[0];
1748
1749         if (diskStructure.rock_ridge_enabled)
1750                 size += node->susp_entry_size;
1751         size += node->su_tail_size;
1752         size += size & 1; /* Ensure length of record is even. */
1753         assert(size <= 254);
1754         return size;
1755 }
1756
1757 static void
1758 cd9660_populate_dot_records(cd9660node *node)
1759 {
1760         node->dot_record->fileDataSector = node->fileDataSector;
1761         memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34);
1762         node->dot_record->isoDirRecord->name_len[0] = 1;
1763         node->dot_record->isoDirRecord->name[0] = 0;
1764         node->dot_record->isoDirRecord->name[1] = 0;
1765         node->dot_record->isoDirRecord->length[0] = 34;
1766         node->dot_record->fileRecordSize =
1767             cd9660_compute_record_size(node->dot_record);
1768
1769         if (node == diskStructure.rootNode) {
1770                 node->dot_dot_record->fileDataSector = node->fileDataSector;
1771                 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord,
1772                     34);
1773         } else {
1774                 node->dot_dot_record->fileDataSector =
1775                     node->parent->fileDataSector;
1776                 memcpy(node->dot_dot_record->isoDirRecord,
1777                     node->parent->isoDirRecord,34);
1778         }
1779         node->dot_dot_record->isoDirRecord->name_len[0] = 1;
1780         node->dot_dot_record->isoDirRecord->name[0] = 1;
1781         node->dot_dot_record->isoDirRecord->name[1] = 0;
1782         node->dot_dot_record->isoDirRecord->length[0] = 34;
1783         node->dot_dot_record->fileRecordSize =
1784             cd9660_compute_record_size(node->dot_dot_record);
1785 }
1786
1787 /*
1788  * @param struct cd9660node *node The node
1789  * @param int The offset (in bytes) - SHOULD align to the beginning of a sector
1790  * @returns int The total size of files and directory entries (should be
1791  *              a multiple of sector size)
1792 */
1793 static int64_t
1794 cd9660_compute_offsets(cd9660node *node, int64_t startOffset)
1795 {
1796         /*
1797          * This function needs to compute the size of directory records and
1798          * runs, file lengths, and set the appropriate variables both in
1799          * cd9660node and isoDirEntry
1800          */
1801         int64_t used_bytes = 0;
1802         int64_t current_sector_usage = 0;
1803         cd9660node *child;
1804         fsinode *inode;
1805         int64_t r;
1806
1807         assert(node != NULL);
1808
1809
1810         /*
1811          * NOTE : There needs to be some special case detection for
1812          * the "real root" node, since for it, node->node is undefined
1813          */
1814
1815         node->fileDataSector = -1;
1816
1817         if (node->type & CD9660_TYPE_DIR) {
1818                 node->fileRecordSize = cd9660_compute_record_size(node);
1819                 /*Set what sector this directory starts in*/
1820                 node->fileDataSector =
1821                     CD9660_BLOCKS(diskStructure.sectorSize,startOffset);
1822
1823                 cd9660_bothendian_dword(node->fileDataSector,
1824                     node->isoDirRecord->extent);
1825
1826                 /*
1827                  * First loop over children, need to know the size of
1828                  * their directory records
1829                  */
1830                 node->fileSectorsUsed = 1;
1831                 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) {
1832                         node->fileDataLength +=
1833                             cd9660_compute_record_size(child);
1834                         if ((cd9660_compute_record_size(child) +
1835                             current_sector_usage) >=
1836                             diskStructure.sectorSize) {
1837                                 current_sector_usage = 0;
1838                                 node->fileSectorsUsed++;
1839                         }
1840
1841                         current_sector_usage +=
1842                             cd9660_compute_record_size(child);
1843                 }
1844
1845                 cd9660_bothendian_dword(node->fileSectorsUsed *
1846                         diskStructure.sectorSize,node->isoDirRecord->size);
1847
1848                 /*
1849                  * This should point to the sector after the directory
1850                  * record (or, the first byte in that sector)
1851                  */
1852                 used_bytes += node->fileSectorsUsed * diskStructure.sectorSize;
1853
1854                 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1855                      child != NULL; child = TAILQ_NEXT(child, cn_next_child)) {
1856                         /* Directories need recursive call */
1857                         if (S_ISDIR(child->node->type)) {
1858                                 r = cd9660_compute_offsets(child,
1859                                     used_bytes + startOffset);
1860
1861                                 if (r != -1)
1862                                         used_bytes += r;
1863                                 else
1864                                         return -1;
1865                         }
1866                 }
1867
1868                 /* Explicitly set the . and .. records */
1869                 cd9660_populate_dot_records(node);
1870
1871                 /* Finally, do another iteration to write the file data*/
1872                 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1873                      child != NULL;
1874                      child = TAILQ_NEXT(child, cn_next_child)) {
1875                         /* Files need extent set */
1876                         if (S_ISDIR(child->node->type))
1877                                 continue;
1878                         child->fileRecordSize =
1879                             cd9660_compute_record_size(child);
1880
1881                         child->fileSectorsUsed =
1882                             CD9660_BLOCKS(diskStructure.sectorSize,
1883                                 child->fileDataLength);
1884
1885                         inode = child->node->inode;
1886                         if ((inode->flags & FI_ALLOCATED) == 0) {
1887                                 inode->ino =
1888                                     CD9660_BLOCKS(diskStructure.sectorSize,
1889                                         used_bytes + startOffset);
1890                                 inode->flags |= FI_ALLOCATED;
1891                                 used_bytes += child->fileSectorsUsed *
1892                                     diskStructure.sectorSize;
1893                         } else {
1894                                 INODE_WARNX(("%s: already allocated inode %d "
1895                                       "data sectors at %" PRIu32, __func__,
1896                                       (int)inode->st.st_ino, inode->ino));
1897                         }
1898                         child->fileDataSector = inode->ino;
1899                         cd9660_bothendian_dword(child->fileDataSector,
1900                                 child->isoDirRecord->extent);
1901                 }
1902         }
1903
1904         return used_bytes;
1905 }
1906
1907 #if 0
1908 /* Might get rid of this func */
1909 static int
1910 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file)
1911 {
1912         to->node->inode->st.st_dev = 0;
1913         to->node->inode->st.st_ino = 0;
1914         to->node->inode->st.st_size = 0;
1915         to->node->inode->st.st_blksize = from->node->inode->st.st_blksize;
1916         to->node->inode->st.st_atime = from->node->inode->st.st_atime;
1917         to->node->inode->st.st_mtime = from->node->inode->st.st_mtime;
1918         to->node->inode->st.st_ctime = from->node->inode->st.st_ctime;
1919         to->node->inode->st.st_uid = from->node->inode->st.st_uid;
1920         to->node->inode->st.st_gid = from->node->inode->st.st_gid;
1921         to->node->inode->st.st_mode = from->node->inode->st.st_mode;
1922         /* Clear out type */
1923         to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT);
1924         if (file)
1925                 to->node->inode->st.st_mode |= S_IFREG;
1926         else
1927                 to->node->inode->st.st_mode |= S_IFDIR;
1928         return 1;
1929 }
1930 #endif
1931
1932 static cd9660node *
1933 cd9660_create_virtual_entry(const char *name, cd9660node *parent, int file,
1934                             int insert)
1935 {
1936         cd9660node *temp;
1937         fsnode * tfsnode;
1938
1939         assert(parent != NULL);
1940
1941         temp = cd9660_allocate_cd9660node();
1942         if (temp == NULL)
1943                 return NULL;
1944
1945         if ((tfsnode = malloc(sizeof(fsnode))) == NULL) {
1946                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1947                 return NULL;
1948         }
1949
1950         /* Assume for now name is a valid length */
1951         if ((tfsnode->name = malloc(strlen(name) + 1)) == NULL) {
1952                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1953                 return NULL;
1954         }
1955
1956         if ((temp->isoDirRecord =
1957             malloc(sizeof(iso_directory_record_cd9660))) == NULL) {
1958                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1959                 return NULL;
1960         }
1961
1962         strcpy(tfsnode->name, name);
1963
1964         cd9660_convert_filename(tfsnode->name, temp->isoDirRecord->name, file);
1965
1966         temp->node = tfsnode;
1967         temp->parent = parent;
1968
1969         if (insert) {
1970                 if (temp->parent != NULL) {
1971                         temp->level = temp->parent->level + 1;
1972                         if (!TAILQ_EMPTY(&temp->parent->cn_children))
1973                                 cd9660_sorted_child_insert(temp->parent, temp);
1974                         else
1975                                 TAILQ_INSERT_HEAD(&temp->parent->cn_children,
1976                                     temp, cn_next_child);
1977                 }
1978         }
1979
1980         if (parent->node != NULL) {
1981                 tfsnode->type = parent->node->type;
1982         }
1983
1984         /* Clear out file type bits */
1985         tfsnode->type &= ~(S_IFMT);
1986         if (file)
1987                 tfsnode->type |= S_IFREG;
1988         else
1989                 tfsnode->type |= S_IFDIR;
1990
1991         /* Indicate that there is no spec entry (inode) */
1992         tfsnode->flags &= ~(FSNODE_F_HASSPEC);
1993 #if 0
1994         cd9660_copy_stat_info(parent, temp, file);
1995 #endif
1996         return temp;
1997 }
1998
1999 static cd9660node *
2000 cd9660_create_file(const char * name, cd9660node *parent, cd9660node *me)
2001 {
2002         cd9660node *temp;
2003
2004         temp = cd9660_create_virtual_entry(name,parent,1,1);
2005         if (temp == NULL)
2006                 return NULL;
2007
2008         temp->fileDataLength = 0;
2009
2010         temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL;
2011
2012         if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2013                 return NULL;
2014         *temp->node->inode = *me->node->inode;
2015
2016         if (cd9660_translate_node_common(temp) == 0)
2017                 return NULL;
2018         return temp;
2019 }
2020
2021 /*
2022  * Create a new directory which does not exist on disk
2023  * @param const char * name The name to assign to the directory
2024  * @param const char * parent Pointer to the parent directory
2025  * @returns cd9660node * Pointer to the new directory
2026  */
2027 static cd9660node *
2028 cd9660_create_directory(const char *name, cd9660node *parent, cd9660node *me)
2029 {
2030         cd9660node *temp;
2031
2032         temp = cd9660_create_virtual_entry(name,parent,0,1);
2033         if (temp == NULL)
2034                 return NULL;
2035         temp->node->type |= S_IFDIR;
2036
2037         temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL;
2038
2039         if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2040                 return NULL;
2041         *temp->node->inode = *me->node->inode;
2042
2043         if (cd9660_translate_node_common(temp) == 0)
2044                 return NULL;
2045         return temp;
2046 }
2047
2048 static cd9660node *
2049 cd9660_create_special_directory(u_char type, cd9660node *parent)
2050 {
2051         cd9660node *temp, *first;
2052         char na[2];
2053
2054         assert(parent != NULL);
2055
2056         if (type == CD9660_TYPE_DOT)
2057                 na[0] = 0;
2058         else if (type == CD9660_TYPE_DOTDOT)
2059                 na[0] = 1;
2060         else
2061                 return 0;
2062
2063         na[1] = 0;
2064         if ((temp = cd9660_create_virtual_entry(na, parent, 0, 0)) == NULL)
2065                 return NULL;
2066
2067         temp->parent = parent;
2068         temp->type = type;
2069         temp->isoDirRecord->length[0] = 34;
2070         /* Dot record is always first */
2071         if (type == CD9660_TYPE_DOT) {
2072                 parent->dot_record = temp;
2073                 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child);
2074         /* DotDot should be second */
2075         } else if (type == CD9660_TYPE_DOTDOT) {
2076                 parent->dot_dot_record = temp;
2077                 /*
2078                  * If the first child is the dot record, insert
2079                  * this second.  Otherwise, insert it at the head.
2080                  */
2081                 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL ||
2082                     (first->type & CD9660_TYPE_DOT) == 0) {
2083                         TAILQ_INSERT_HEAD(&parent->cn_children, temp,
2084                             cn_next_child);
2085                 } else {
2086                         TAILQ_INSERT_AFTER(&parent->cn_children, first, temp,
2087                             cn_next_child);
2088                 }
2089         }
2090
2091         return temp;
2092 }
2093
2094 int
2095 cd9660_add_generic_bootimage(const char *bootimage)
2096 {
2097         struct stat stbuf;
2098
2099         assert(bootimage != NULL);
2100
2101         if (*bootimage == '\0') {
2102                 warnx("Error: Boot image must be a filename");
2103                 return 0;
2104         }
2105
2106         if ((diskStructure.generic_bootimage = strdup(bootimage)) == NULL) {
2107                 warn("%s: strdup", __func__);
2108                 return 0;
2109         }
2110
2111         /* Get information about the file */
2112         if (lstat(diskStructure.generic_bootimage, &stbuf) == -1)
2113                 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__,
2114                     diskStructure.generic_bootimage);
2115
2116         if (stbuf.st_size > 32768) {
2117                 warnx("Error: Boot image must be no greater than 32768 bytes");
2118                 return 0;
2119         }
2120
2121         if (diskStructure.verbose_level > 0) {
2122                 printf("Generic boot image image has size %lld\n",
2123                     (long long)stbuf.st_size);
2124         }
2125
2126         diskStructure.has_generic_bootimage = 1;
2127
2128         return 1;
2129 }