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         if (diskStructure.verbose_level > 0)
 476                 printf("cd9660_makefs: image %s directory %s root %p\n",
 477                     image, dir, root);
 478
 479         /* Set up some constants. Later, these will be defined with options */
 480
 481         /* Counter needed for path tables */
 482         numDirectories = 0;
 483
 484         /* Convert tree to our own format */
 485         /* Actually, we now need to add the REAL root node, at level 0 */
 486
 487         real_root = cd9660_allocate_cd9660node();
 488         if ((real_root->isoDirRecord =
 489                 malloc( sizeof(iso_directory_record_cd9660) )) == NULL) {
 490                 CD9660_MEM_ALLOC_ERROR("cd9660_makefs");
 491                 exit(1);
 492         }
 493
 494         /* Leave filename blank for root */
 495         memset(real_root->isoDirRecord->name, 0,
 496             ISO_FILENAME_MAXLENGTH_WITH_PADDING);
 497
 498         real_root->level = 0;
 499         diskStructure.rootNode = real_root;
 500         real_root->type = CD9660_TYPE_DIR;
 501         error = 0;
 502         real_root->node = root;
 503         cd9660_convert_structure(root, real_root, 1, &numDirectories, &error);
 504
 505         if (TAILQ_EMPTY(&real_root->cn_children)) {
 506                 errx(1, "cd9660_makefs: converted directory is empty. "
 507                         "Tree conversion failed\n");
 508         } else if (error != 0) {
 509                 errx(1, "cd9660_makefs: tree conversion failed\n");
 510         } else {
 511                 if (diskStructure.verbose_level > 0)
 512                         printf("cd9660_makefs: tree converted\n");
 513         }
 514
 515         /* Add the dot and dot dot records */
 516         cd9660_add_dot_records(real_root);
 517
 518         cd9660_setup_root_node();
 519
 520         if (diskStructure.verbose_level > 0)
 521                 printf("cd9660_makefs: done converting tree\n");
 522
 523         /* non-SUSP extensions */
 524         if (diskStructure.archimedes_enabled)
 525                 archimedes_convert_tree(diskStructure.rootNode);
 526
 527         /* Rock ridge / SUSP init pass */
 528         if (diskStructure.rock_ridge_enabled) {
 529                 cd9660_susp_initialize(diskStructure.rootNode,
 530                     diskStructure.rootNode, NULL);
 531         }
 532
 533         /* Build path table structure */
 534         diskStructure.pathTableLength = cd9660_generate_path_table();
 535
 536         pathTableSectors = CD9660_BLOCKS(diskStructure.sectorSize,
 537                 diskStructure.pathTableLength);
 538
 539         firstAvailableSector = cd9660_setup_volume_descriptors();
 540         if (diskStructure.is_bootable) {
 541                 firstAvailableSector = cd9660_setup_boot(firstAvailableSector);
 542                 if (firstAvailableSector < 0)
 543                         errx(1, "setup_boot failed");
 544         }
 545         /* LE first, then BE */
 546         diskStructure.primaryLittleEndianTableSector = firstAvailableSector;
 547         diskStructure.primaryBigEndianTableSector =
 548                 diskStructure.primaryLittleEndianTableSector + pathTableSectors;
 549
 550         /* Set the secondary ones to -1, not going to use them for now */
 551         diskStructure.secondaryBigEndianTableSector = -1;
 552         diskStructure.secondaryLittleEndianTableSector = -1;
 553
 554         diskStructure.dataFirstSector =
 555             diskStructure.primaryBigEndianTableSector + pathTableSectors;
 556         if (diskStructure.verbose_level > 0)
 557                 printf("cd9660_makefs: Path table conversion complete. "
 558                        "Each table is %i bytes, or %" PRIu64 " sectors.\n",
 559                     diskStructure.pathTableLength, pathTableSectors);
 560
 561         startoffset = diskStructure.sectorSize*diskStructure.dataFirstSector;
 562
 563         totalSpace = cd9660_compute_offsets(real_root, startoffset);
 564
 565         diskStructure.totalSectors = diskStructure.dataFirstSector +
 566                 CD9660_BLOCKS(diskStructure.sectorSize, totalSpace);
 567
 568         /* Disabled until pass 1 is done */
 569         if (diskStructure.rock_ridge_enabled) {
 570                 diskStructure.susp_continuation_area_start_sector =
 571                     diskStructure.totalSectors;
 572                 diskStructure.totalSectors +=
 573                     CD9660_BLOCKS(diskStructure.sectorSize,
 574                         diskStructure.susp_continuation_area_size);
 575                 cd9660_susp_finalize(diskStructure.rootNode);
 576         }
 577
 578
 579         cd9660_finalize_PVD();
 580
 581         /* Add padding sectors, just for testing purposes right now */
 582         /* diskStructure.totalSectors+=150; */
 583
 584         /* Debugging output */
 585         if (diskStructure.verbose_level > 0) {
 586                 printf("cd9660_makefs: Sectors 0-15 reserved\n");
 587                 printf("cd9660_makefs: Primary path tables starts in sector %"
 588                     PRId64 "\n", diskStructure.primaryLittleEndianTableSector);
 589                 printf("cd9660_makefs: File data starts in sector %"
 590                     PRId64 "\n", diskStructure.dataFirstSector);
 591                 printf("cd9660_makefs: Total sectors: %"
 592                     PRId64 "\n", diskStructure.totalSectors);
 593         }
 594
 595         /*
 596          * Add padding sectors at the end
 597          * TODO: Clean this up and separate padding
 598          */
 599         if (diskStructure.include_padding_areas)
 600                 diskStructure.totalSectors += 150;
 601
 602         cd9660_write_image(image);
 603
 604         if (diskStructure.verbose_level > 1) {
 605                 debug_print_volume_descriptor_information();
 606                 debug_print_tree(real_root,0);
 607                 debug_print_path_tree(real_root);
 608         }
 609
 610         /* Clean up data structures */
 611         cd9660_free_structure(real_root);
 612
 613         if (diskStructure.verbose_level > 0)
 614                 printf("cd9660_makefs: done\n");
 615 }
 616
 617 /* Generic function pointer - implement later */
 618 typedef int (*cd9660node_func)(cd9660node *);
 619
 620 static void
 621 cd9660_finalize_PVD(void)
 622 {
 623         time_t tim;
 624         unsigned char *temp;
 625
 626         /* Copy the root directory record */
 627         temp = (unsigned char *) &diskStructure.primaryDescriptor;
 628
 629         /* root should be a fixed size of 34 bytes since it has no name */
 630         memcpy(diskStructure.primaryDescriptor.root_directory_record,
 631                 diskStructure.rootNode->dot_record->isoDirRecord, 34);
 632
 633         /* In RRIP, this might be longer than 34 */
 634         diskStructure.primaryDescriptor.root_directory_record[0] = 34;
 635
 636         /* Set up all the important numbers in the PVD */
 637         cd9660_bothendian_dword(diskStructure.totalSectors,
 638             (unsigned char *)diskStructure.primaryDescriptor.volume_space_size);
 639         cd9660_bothendian_word(1,
 640             (unsigned char *)diskStructure.primaryDescriptor.volume_set_size);
 641         cd9660_bothendian_word(1,
 642             (unsigned char *)
 643                 diskStructure.primaryDescriptor.volume_sequence_number);
 644         cd9660_bothendian_word(diskStructure.sectorSize,
 645             (unsigned char *)
 646                 diskStructure.primaryDescriptor.logical_block_size);
 647         cd9660_bothendian_dword(diskStructure.pathTableLength,
 648             (unsigned char *)diskStructure.primaryDescriptor.path_table_size);
 649
 650         cd9660_731(diskStructure.primaryLittleEndianTableSector,
 651                 (u_char *)diskStructure.primaryDescriptor.type_l_path_table);
 652         cd9660_732(diskStructure.primaryBigEndianTableSector,
 653                 (u_char *)diskStructure.primaryDescriptor.type_m_path_table);
 654
 655         diskStructure.primaryDescriptor.file_structure_version[0] = 1;
 656
 657         /* Pad all strings with spaces instead of nulls */
 658         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_id, 32);
 659         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.system_id, 32);
 660         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_set_id,
 661             128);
 662         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.publisher_id,
 663             128);
 664         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.preparer_id,
 665             128);
 666         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.application_id,
 667             128);
 668         cd9660_pad_string_spaces(
 669             diskStructure.primaryDescriptor.copyright_file_id, 37);
 670         cd9660_pad_string_spaces(
 671                 diskStructure.primaryDescriptor.abstract_file_id, 37);
 672         cd9660_pad_string_spaces(
 673                 diskStructure.primaryDescriptor.bibliographic_file_id, 37);
 674
 675         /* Setup dates */
 676         time(&tim);
 677         cd9660_time_8426(
 678             (unsigned char *)diskStructure.primaryDescriptor.creation_date,
 679             tim);
 680         cd9660_time_8426(
 681             (unsigned char *)diskStructure.primaryDescriptor.modification_date,
 682             tim);
 683
 684         /*
 685         cd9660_set_date(diskStructure.primaryDescriptor.expiration_date, now);
 686         */
 687
 688         memset(diskStructure.primaryDescriptor.expiration_date, '0' ,17);
 689         cd9660_time_8426(
 690             (unsigned char *)diskStructure.primaryDescriptor.effective_date,
 691             tim);
 692 }
 693
 694 static void
 695 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record,
 696                                u_char ext_attr_length, u_char flags,
 697                                u_char name_len, const char * name)
 698 {
 699         record->ext_attr_length[0] = ext_attr_length;
 700         record->flags[0] = ISO_FLAG_CLEAR | flags;
 701         record->file_unit_size[0] = 0;
 702         record->interleave[0] = 0;
 703         cd9660_bothendian_word(1, record->volume_sequence_number);
 704         record->name_len[0] = name_len;
 705         memset(record->name, '\0', sizeof (record->name));
 706         memcpy(record->name, name, name_len);
 707         record->length[0] = 33 + name_len;
 708
 709         /* Todo : better rounding */
 710         record->length[0] += (record->length[0] & 1) ? 1 : 0;
 711 }
 712
 713 static void
 714 cd9660_setup_root_node(void)
 715 {
 716         cd9660_populate_iso_dir_record(diskStructure.rootNode->isoDirRecord,
 717             0, ISO_FLAG_DIRECTORY, 1, "\0");
 718
 719 }
 720
 721 /*********** SUPPORT FUNCTIONS ***********/
 722 static int
 723 cd9660_setup_volume_descriptors(void)
 724 {
 725         /* Boot volume descriptor should come second */
 726         int sector = 16;
 727         /* For now, a fixed 2 : PVD and terminator */
 728         volume_descriptor *temp, *t;
 729
 730         /* Set up the PVD */
 731         if ((temp = malloc(sizeof(volume_descriptor))) == NULL) {
 732                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 733                 exit(1);
 734         }
 735
 736         temp->volumeDescriptorData =
 737            (unsigned char *)&diskStructure.primaryDescriptor;
 738         temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD;
 739         temp->volumeDescriptorData[6] = 1;
 740         temp->sector = sector;
 741         memcpy(temp->volumeDescriptorData + 1,
 742             ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
 743         diskStructure.firstVolumeDescriptor = temp;
 744
 745         sector++;
 746         /* Set up boot support if enabled. BVD must reside in sector 17 */
 747         if (diskStructure.is_bootable) {
 748                 if ((t = malloc(sizeof(volume_descriptor))) == NULL) {
 749                         CD9660_MEM_ALLOC_ERROR(
 750                             "cd9660_setup_volume_descriptors");
 751                         exit(1);
 752                 }
 753                 if ((t->volumeDescriptorData = malloc(2048)) == NULL) {
 754                         CD9660_MEM_ALLOC_ERROR(
 755                             "cd9660_setup_volume_descriptors");
 756                         exit(1);
 757                 }
 758                 temp->next = t;
 759                 temp = t;
 760                 memset(t->volumeDescriptorData, 0, 2048);
 761                 t->sector = 17;
 762                 if (diskStructure.verbose_level > 0)
 763                         printf("Setting up boot volume descriptor\n");
 764                 cd9660_setup_boot_volume_descriptor(t);
 765                 sector++;
 766         }
 767
 768         /* Set up the terminator */
 769         if ((t = malloc(sizeof(volume_descriptor))) == NULL) {
 770                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 771                 exit(1);
 772         }
 773         if ((t->volumeDescriptorData = malloc(2048)) == NULL) {
 774                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 775                 exit(1);
 776         }
 777
 778         temp->next = t;
 779         memset(t->volumeDescriptorData, 0, 2048);
 780         t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR;
 781         t->next = 0;
 782         t->volumeDescriptorData[6] = 1;
 783         t->sector = sector;
 784         memcpy(t->volumeDescriptorData + 1,
 785             ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
 786
 787         sector++;
 788         return sector;
 789 }
 790
 791 #if 0
 792 /*
 793  * Populate EAR at some point. Not required, but is used by NetBSD's
 794  * cd9660 support
 795  */
 796 static int
 797 cd9660_fill_extended_attribute_record(cd9660node *node)
 798 {
 799         if ((node->isoExtAttributes =
 800             malloc(sizeof(struct iso_extended_attributes))) == NULL) {
 801                 CD9660_MEM_ALLOC_ERROR("cd9660_fill_extended_attribute_record");
 802                 exit(1);
 803         };
 804
 805         return 1;
 806 }
 807 #endif
 808
 809 static int
 810 cd9660_translate_node_common(cd9660node *newnode)
 811 {
 812         time_t tim;
 813         int test;
 814         u_char flag;
 815         char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING];
 816
 817         /* Now populate the isoDirRecord structure */
 818         memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
 819
 820         test = cd9660_convert_filename(newnode->node->name,
 821                 temp, !(S_ISDIR(newnode->node->type)));
 822
 823         flag = ISO_FLAG_CLEAR;
 824         if (S_ISDIR(newnode->node->type))
 825                 flag |= ISO_FLAG_DIRECTORY;
 826
 827         cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0,
 828             flag, strlen(temp), temp);
 829
 830         /* Set the various dates */
 831
 832         /* If we want to use the current date and time */
 833         time(&tim);
 834
 835         cd9660_time_915(newnode->isoDirRecord->date, tim);
 836
 837         cd9660_bothendian_dword(newnode->fileDataLength,
 838             newnode->isoDirRecord->size);
 839         /* If the file is a link, we want to set the size to 0 */
 840         if (S_ISLNK(newnode->node->type))
 841                 newnode->fileDataLength = 0;
 842
 843         return 1;
 844 }
 845
 846 /*
 847  * Translate fsnode to cd9660node
 848  * Translate filenames and other metadata, including dates, sizes,
 849  * permissions, etc
 850  * @param struct fsnode * The node generated by makefs
 851  * @param struct cd9660node * The intermediate node to be written to
 852  * @returns int 0 on failure, 1 on success
 853  */
 854 static int
 855 cd9660_translate_node(fsnode *node, cd9660node *newnode)
 856 {
 857         if (node == NULL) {
 858                 if (diskStructure.verbose_level > 0)
 859                         printf("cd9660_translate_node: NULL node passed, "
 860                                "returning\n");
 861                 return 0;
 862         }
 863         if ((newnode->isoDirRecord =
 864                 malloc(sizeof(iso_directory_record_cd9660))) == NULL) {
 865                 CD9660_MEM_ALLOC_ERROR("cd9660_translate_node");
 866                 return 0;
 867         }
 868
 869         /* Set the node pointer */
 870         newnode->node = node;
 871
 872         /* Set the size */
 873         if (!(S_ISDIR(node->type)))
 874                 newnode->fileDataLength = node->inode->st.st_size;
 875
 876         if (cd9660_translate_node_common(newnode) == 0)
 877                 return 0;
 878
 879         /* Finally, overwrite some of the values that are set by default */
 880         cd9660_time_915(newnode->isoDirRecord->date, node->inode->st.st_mtime);
 881
 882         return 1;
 883 }
 884
 885 /*
 886  * Compares two ISO filenames
 887  * @param const char * The first file name
 888  * @param const char * The second file name
 889  * @returns : -1 if first is less than second, 0 if they are the same, 1 if
 890  *      the second is greater than the first
 891  */
 892 static int
 893 cd9660_compare_filename(const char *first, const char *second)
 894 {
 895         /*
 896          * This can be made more optimal once it has been tested
 897          * (the extra character, for example, is for testing)
 898          */
 899
 900         int p1 = 0;
 901         int p2 = 0;
 902         char c1, c2;
 903         /* First, on the filename */
 904
 905         while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1
 906                 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) {
 907                 c1 = first[p1];
 908                 c2 = second[p2];
 909                 if (c1 == '.' && c2 =='.')
 910                         break;
 911                 else if (c1 == '.') {
 912                         p2++;
 913                         c1 = ' ';
 914                 } else if (c2 == '.') {
 915                         p1++;
 916                         c2 = ' ';
 917                 } else {
 918                         p1++;
 919                         p2++;
 920                 }
 921
 922                 if (c1 < c2)
 923                         return -1;
 924                 else if (c1 > c2) {
 925                         return 1;
 926                 }
 927         }
 928
 929         if (first[p1] == '.' && second[p2] == '.') {
 930                 p1++;
 931                 p2++;
 932                 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1
 933                         && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) {
 934                         c1 = first[p1];
 935                         c2 = second[p2];
 936                         if (c1 == ';' && c2 == ';')
 937                                 break;
 938                         else if (c1 == ';') {
 939                                 p2++;
 940                                 c1 = ' ';
 941                         } else if (c2 == ';') {
 942                                 p1++;
 943                                 c2 = ' ';
 944                         } else {
 945                                 p1++;
 946                                 p2++;
 947                         }
 948
 949                         if (c1 < c2)
 950                                 return -1;
 951                         else if (c1 > c2)
 952                                 return 1;
 953                 }
 954         }
 955         return 0;
 956 }
 957
 958 /*
 959  * Insert a node into list with ISO sorting rules
 960  * @param cd9660node * The head node of the list
 961  * @param cd9660node * The node to be inserted
 962  */
 963 static void
 964 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new)
 965 {
 966         int compare;
 967         cd9660node *cn;
 968         struct cd9660_children_head *head = &parent->cn_children;
 969
 970         /* TODO: Optimize? */
 971         cn_new->parent = parent;
 972
 973         /*
 974          * first will either be 0, the . or the ..
 975          * if . or .., this means no other entry may be written before first
 976          * if 0, the new node may be inserted at the head
 977          */
 978
 979         TAILQ_FOREACH(cn, head, cn_next_child) {
 980                 /*
 981                  * Dont insert a node twice -
 982                  * that would cause an infinite loop
 983                  */
 984                 if (cn_new == cn)
 985                         return;
 986
 987                 compare = cd9660_compare_filename(cn_new->isoDirRecord->name,
 988                         cn->isoDirRecord->name);
 989
 990                 if (compare == 0)
 991                         compare = cd9660_compare_filename(cn_new->node->name,
 992                                 cn->node->name);
 993
 994                 if (compare < 0)
 995                         break;
 996         }
 997         if (cn == NULL)
 998                 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child);
 999         else
1000                 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child);
1001 }
1002
1003 /*
1004  * Called After cd9660_sorted_child_insert
1005  * handles file collisions by suffixing each filname with ~n
1006  * where n represents the files respective place in the ordering
1007  */
1008 static int
1009 cd9660_handle_collisions(cd9660node *colliding, int past)
1010 {
1011         cd9660node *iter, *next, *prev;
1012         int skip;
1013         int delete_chars = 0;
1014         int temp_past = past;
1015         int temp_skip;
1016         int flag = 0;
1017         cd9660node *end_of_range;
1018
1019         for (iter = TAILQ_FIRST(&colliding->cn_children);
1020              iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) {
1021                 if (strcmp(iter->isoDirRecord->name,
1022                            next->isoDirRecord->name) != 0) {
1023                         iter = TAILQ_NEXT(iter, cn_next_child);
1024                         continue;
1025                 }
1026                 flag = 1;
1027                 temp_skip = skip = cd9660_count_collisions(iter);
1028                 end_of_range = iter;
1029                 while (temp_skip > 0) {
1030                         temp_skip--;
1031                         end_of_range = TAILQ_NEXT(end_of_range, cn_next_child);
1032                 }
1033                 temp_past = past;
1034                 while (temp_past > 0) {
1035                         if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL)
1036                                 end_of_range = next;
1037                         else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL)
1038                                 iter = prev;
1039                         else
1040                                 delete_chars++;
1041                         temp_past--;
1042                 }
1043                 skip += past;
1044                 iter = cd9660_rename_filename(iter, skip, delete_chars);
1045         }
1046         return flag;
1047 }
1048
1049
1050 static cd9660node *
1051 cd9660_rename_filename(cd9660node *iter, int num, int delete_chars)
1052 {
1053         int i = 0;
1054         int numbts, dot, semi, digit, digits, temp, powers, multiplier, count;
1055         char *naming;
1056         int maxlength;
1057         char *tmp;
1058
1059         if (diskStructure.verbose_level > 0)
1060                 printf("Rename_filename called\n");
1061
1062         /* TODO : A LOT of chanes regarding 8.3 filenames */
1063         if (diskStructure.isoLevel == 1)
1064                 maxlength = 8;
1065         else if (diskStructure.isoLevel == 2)
1066                 maxlength = 31;
1067         else
1068                 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION;
1069
1070         tmp = malloc(ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1071
1072         while (i < num) {
1073                 powers = 1;
1074                 count = 0;
1075                 digits = 1;
1076                 multiplier = 1;
1077                 while (((int)(i / powers) ) >= 10) {
1078                         digits++;
1079                         powers = powers * 10;
1080                 }
1081
1082                 naming = iter->o_name;
1083
1084                 /*
1085                 while ((*naming != '.') && (*naming != ';')) {
1086                         naming++;
1087                         count++;
1088                 }
1089                 */
1090
1091                 dot = -1;
1092                 semi = -1;
1093                 while (count < maxlength) {
1094                         if (*naming == '.')
1095                                 dot = count;
1096                         else if (*naming == ';') {
1097                                 semi = count;
1098                                 break;
1099                         }
1100                         naming++;
1101                         count++;
1102                 }
1103
1104                 if ((count + digits) < maxlength)
1105                         numbts = count;
1106                 else
1107                         numbts = maxlength - (digits);
1108                 numbts -= delete_chars;
1109
1110                 /* 8.3 rules - keep the extension, add before the dot */
1111
1112                 /*
1113                  * This code makes a bunch of assumptions.
1114                  * See if you can spot them all :)
1115                  */
1116
1117                 /*
1118                 if (diskStructure.isoLevel == 1) {
1119                         numbts = 8 - digits - delete_chars;
1120                         if (dot < 0) {
1121
1122                         } else {
1123                                 if (dot < 8) {
1124                                         memmove(&tmp[numbts],&tmp[dot],4);
1125                                 }
1126                         }
1127                 }
1128                 */
1129
1130                 /* (copying just the filename before the '.' */
1131                 memcpy(tmp, (iter->o_name), numbts);
1132
1133                 /* adding the appropriate number following the name */
1134                 temp = i;
1135                 while (digits > 0) {
1136                         digit = (int)(temp / powers);
1137                         temp = temp - digit * powers;
1138                         sprintf(&tmp[numbts] , "%d", digit);
1139                         digits--;
1140                         numbts++;
1141                         powers = powers / 10;
1142                 }
1143
1144                 while ((*naming != ';')  && (numbts < maxlength)) {
1145                         tmp[numbts] = (*naming);
1146                         naming++;
1147                         numbts++;
1148                 }
1149
1150                 tmp[numbts] = ';';
1151                 tmp[numbts+1] = '1';
1152                 tmp[numbts+2] = '\0';
1153
1154                 /*
1155                  * now tmp has exactly the identifier
1156                  * we want so we'll copy it back to record
1157                  */
1158                 memcpy((iter->isoDirRecord->name), tmp, numbts + 3);
1159
1160                 iter = TAILQ_NEXT(iter, cn_next_child);
1161                 i++;
1162         }
1163
1164         free(tmp);
1165         return iter;
1166 }
1167
1168 /* Todo: Figure out why these functions are nec. */
1169 static void
1170 cd9660_copy_filenames(cd9660node *node)
1171 {
1172         cd9660node *cn;
1173
1174         if (TAILQ_EMPTY(&node->cn_children))
1175                 return;
1176
1177         if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) {
1178                 debug_print_tree(diskStructure.rootNode, 0);
1179                 exit(1);
1180         }
1181
1182         TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1183                 cd9660_copy_filenames(cn);
1184                 memcpy(cn->o_name, cn->isoDirRecord->name,
1185                     ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1186         }
1187 }
1188
1189 static void
1190 cd9660_sorting_nodes(cd9660node *node)
1191 {
1192         cd9660node *cn;
1193
1194         TAILQ_FOREACH(cn, &node->cn_children, cn_next_child)
1195                 cd9660_sorting_nodes(cn);
1196         cd9660_sort_nodes(node);
1197 }
1198
1199 /* XXX Bubble sort. */
1200 static void
1201 cd9660_sort_nodes(cd9660node *node)
1202 {
1203         cd9660node *cn, *next;
1204
1205         do {
1206                 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1207                         if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL)
1208                                 return;
1209                         else if (strcmp(next->isoDirRecord->name,
1210                                         cn->isoDirRecord->name) >= 0)
1211                                 continue;
1212                         TAILQ_REMOVE(&node->cn_children, next, cn_next_child);
1213                         TAILQ_INSERT_BEFORE(cn, next, cn_next_child);
1214                         break;
1215                 }
1216         } while (cn != NULL);
1217 }
1218
1219 static int
1220 cd9660_count_collisions(cd9660node *copy)
1221 {
1222         int count = 0;
1223         cd9660node *iter, *next;
1224
1225         for (iter = copy;
1226              (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;
1227              iter = next) {
1228                 if (cd9660_compare_filename(iter->isoDirRecord->name,
1229                         next->isoDirRecord->name) == 0)
1230                         count++;
1231                 else
1232                         return count;
1233         }
1234 #if 0
1235         if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) {
1236                 printf("cd9660_recurse_on_collision: count is %i \n", count);
1237                 compare = cd9660_compare_filename(iter->isoDirRecord->name,
1238                         next->isoDirRecord->name);
1239                 if (compare == 0) {
1240                         count++;
1241                         return cd9660_recurse_on_collision(next, count);
1242                 } else
1243                         return count;
1244         }
1245 #endif
1246         return count;
1247 }
1248
1249 static cd9660node *
1250 cd9660_rrip_move_directory(cd9660node *dir)
1251 {
1252         char newname[9];
1253         cd9660node *tfile;
1254
1255         /*
1256          * This function needs to:
1257          * 1) Create an empty virtual file in place of the old directory
1258          * 2) Point the virtual file to the new directory
1259          * 3) Point the relocated directory to its old parent
1260          * 4) Move the directory specified by dir into rr_moved_dir,
1261          * and rename it to "diskStructure.rock_ridge_move_count" (as a string)
1262          */
1263
1264         /* First see if the moved directory even exists */
1265         if (diskStructure.rr_moved_dir == NULL) {
1266                 diskStructure.rr_moved_dir =
1267                         cd9660_create_directory(ISO_RRIP_DEFAULT_MOVE_DIR_NAME,
1268                                 diskStructure.rootNode, dir);
1269                 if (diskStructure.rr_moved_dir == NULL)
1270                         return 0;
1271         }
1272
1273         /* Create a file with the same ORIGINAL name */
1274         tfile = cd9660_create_file(dir->node->name, dir->parent, dir);
1275         if (tfile == NULL)
1276                 return NULL;
1277
1278         diskStructure.rock_ridge_move_count++;
1279         snprintf(newname, sizeof(newname), "%08i",
1280             diskStructure.rock_ridge_move_count);
1281
1282         /* Point to old parent */
1283         dir->rr_real_parent = dir->parent;
1284
1285         /* Place the placeholder file */
1286         if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) {
1287                 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile,
1288                     cn_next_child);
1289         } else {
1290                 cd9660_sorted_child_insert(dir->rr_real_parent, tfile);
1291         }
1292
1293         /* Point to new parent */
1294         dir->parent = diskStructure.rr_moved_dir;
1295
1296         /* Point the file to the moved directory */
1297         tfile->rr_relocated = dir;
1298
1299         /* Actually move the directory */
1300         cd9660_sorted_child_insert(diskStructure.rr_moved_dir, dir);
1301
1302         /* TODO: Inherit permissions / ownership (basically the entire inode) */
1303
1304         /* Set the new name */
1305         memset(dir->isoDirRecord->name, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1306         strncpy(dir->isoDirRecord->name, newname, 8);
1307         dir->isoDirRecord->length[0] = 34 + 8;
1308         dir->isoDirRecord->name_len[0] = 8;
1309
1310         return dir;
1311 }
1312
1313 static int
1314 cd9660_add_dot_records(cd9660node *root)
1315 {
1316         struct cd9660_children_head *head = &root->cn_children;
1317         cd9660node *cn;
1318
1319         TAILQ_FOREACH(cn, head, cn_next_child) {
1320                 if ((cn->type & CD9660_TYPE_DIR) == 0)
1321                         continue;
1322                 /* Recursion first */
1323                 cd9660_add_dot_records(cn);
1324         }
1325         cd9660_create_special_directory(CD9660_TYPE_DOT, root);
1326         cd9660_create_special_directory(CD9660_TYPE_DOTDOT, root);
1327         return 1;
1328 }
1329
1330 /*
1331  * Convert node to cd9660 structure
1332  * This function is designed to be called recursively on the root node of
1333  * the filesystem
1334  * Lots of recursion going on here, want to make sure it is efficient
1335  * @param struct fsnode * The root node to be converted
1336  * @param struct cd9660* The parent node (should not be NULL)
1337  * @param int Current directory depth
1338  * @param int* Running count of the number of directories that are being created
1339  */
1340 static void
1341 cd9660_convert_structure(fsnode *root, cd9660node *parent_node, int level,
1342                          int *numDirectories, int *error)
1343 {
1344         fsnode *iterator = root;
1345         cd9660node *this_node;
1346         int working_level;
1347         int add;
1348         int flag = 0;
1349         int counter = 0;
1350
1351         /*
1352          * Newer, more efficient method, reduces recursion depth
1353          */
1354         if (root == NULL) {
1355                 warnx("%s: root is null\n", __func__);
1356                 return;
1357         }
1358
1359         /* Test for an empty directory - makefs still gives us the . record */
1360         if ((S_ISDIR(root->type)) && (root->name[0] == '.')
1361                 && (root->name[1] == '\0')) {
1362                 root = root->next;
1363                 if (root == NULL)
1364                         return;
1365         }
1366         if ((this_node = cd9660_allocate_cd9660node()) == NULL) {
1367                 CD9660_MEM_ALLOC_ERROR(__func__);
1368         }
1369
1370         /*
1371          * To reduce the number of recursive calls, we will iterate over
1372          * the next pointers to the right.
1373          */
1374         while (iterator != NULL) {
1375                 add = 1;
1376                 /*
1377                  * Increment the directory count if this is a directory
1378                  * Ignore "." entries. We will generate them later
1379                  */
1380                 if (!S_ISDIR(iterator->type) ||
1381                     strcmp(iterator->name, ".") != 0) {
1382
1383                         /* Translate the node, including its filename */
1384                         this_node->parent = parent_node;
1385                         cd9660_translate_node(iterator, this_node);
1386                         this_node->level = level;
1387
1388                         if (S_ISDIR(iterator->type)) {
1389                                 (*numDirectories)++;
1390                                 this_node->type = CD9660_TYPE_DIR;
1391                                 working_level = level + 1;
1392
1393                                 /*
1394                                  * If at level 8, directory would be at 8
1395                                  * and have children at 9 which is not
1396                                  * allowed as per ISO spec
1397                                  */
1398                                 if (level == 8) {
1399                                         if ((!diskStructure.allow_deep_trees) &&
1400                                           (!diskStructure.rock_ridge_enabled)) {
1401                                                 warnx("error: found entry "
1402                                                      "with depth greater "
1403                                                      "than 8.");
1404                                                 (*error) = 1;
1405                                                 return;
1406                                         } else if (diskStructure.
1407                                                    rock_ridge_enabled) {
1408                                                 working_level = 3;
1409                                                 /*
1410                                                  * Moved directory is actually
1411                                                  * at level 2.
1412                                                  */
1413                                                 this_node->level =
1414                                                     working_level - 1;
1415                                                 if (cd9660_rrip_move_directory(
1416                                                         this_node) == 0) {
1417                                                         warnx("Failure in "
1418                                                               "cd9660_rrip_"
1419                                                               "move_directory"
1420                                                         );
1421                                                         (*error) = 1;
1422                                                         return;
1423                                                 }
1424                                                 add = 0;
1425                                         }
1426                                 }
1427
1428                                 /* Do the recursive call on the children */
1429                                 if (iterator->child != 0) {
1430                                         cd9660_convert_structure(
1431                                             iterator->child, this_node,
1432                                                 working_level,
1433                                                 numDirectories, error);
1434
1435                                         if ((*error) == 1) {
1436                                                 warnx("%s: Error on recursive "
1437                                                     "call", __func__);
1438                                                 return;
1439                                         }
1440                                 }
1441
1442                         } else {
1443                                 /* Only directories should have children */
1444                                 assert(iterator->child == NULL);
1445
1446                                 this_node->type = CD9660_TYPE_FILE;
1447                         }
1448
1449                         /*
1450                          * Finally, do a sorted insert
1451                          */
1452                         if (add) {
1453                                 cd9660_sorted_child_insert(
1454                                     parent_node, this_node);
1455                         }
1456
1457                         /*Allocate new temp_node */
1458                         if (iterator->next != 0) {
1459                                 this_node = cd9660_allocate_cd9660node();
1460                                 if (this_node == NULL)
1461                                         CD9660_MEM_ALLOC_ERROR(__func__);
1462                         }
1463                 }
1464                 iterator = iterator->next;
1465         }
1466
1467         /* cd9660_handle_collisions(first_node); */
1468
1469         /* TODO: need cleanup */
1470         cd9660_copy_filenames(parent_node);
1471
1472         do {
1473                 flag = cd9660_handle_collisions(parent_node, counter);
1474                 counter++;
1475                 cd9660_sorting_nodes(parent_node);
1476         } while ((flag == 1) && (counter < 100));
1477 }
1478
1479 /*
1480  * Clean up the cd9660node tree
1481  * This is designed to be called recursively on the root node
1482  * @param struct cd9660node *root The node to free
1483  * @returns void
1484  */
1485 static void
1486 cd9660_free_structure(cd9660node *root)
1487 {
1488         cd9660node *cn;
1489
1490         while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) {
1491                 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child);
1492                 cd9660_free_structure(cn);
1493         }
1494         free(root);
1495 }
1496
1497 /*
1498  * Be a little more memory conservative:
1499  * instead of having the TAILQ_ENTRY as part of the cd9660node,
1500  * just create a temporary structure
1501  */
1502 struct ptq_entry
1503 {
1504         TAILQ_ENTRY(ptq_entry) ptq;
1505         cd9660node *node;
1506 } *n;
1507
1508 #define PTQUEUE_NEW(n,s,r,t){\
1509         n = malloc(sizeof(struct s));   \
1510         if (n == NULL)  \
1511                 return r; \
1512         n->node = t;\
1513 }
1514
1515 /*
1516  * Generate the path tables
1517  * The specific implementation of this function is left as an exercise to the
1518  * programmer. It could be done recursively. Make sure you read how the path
1519  * table has to be laid out, it has levels.
1520  * @param struct iso9660_disk *disk The disk image
1521  * @returns int The number of built path tables (between 1 and 4), 0 on failure
1522  */
1523 static int
1524 cd9660_generate_path_table(void)
1525 {
1526         cd9660node *cn, *dirNode = diskStructure.rootNode;
1527         cd9660node *last = dirNode;
1528         int pathTableSize = 0;  /* computed as we go */
1529         int counter = 1;        /* root gets a count of 0 */
1530         int parentRecNum = 0;   /* root's parent is '0' */
1531
1532         TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head;
1533         TAILQ_INIT(&pt_head);
1534
1535         PTQUEUE_NEW(n, ptq_entry, -1, diskStructure.rootNode);
1536
1537         /* Push the root node */
1538         TAILQ_INSERT_HEAD(&pt_head, n, ptq);
1539
1540         /* Breadth-first traversal of file structure */
1541         while (pt_head.tqh_first != 0) {
1542                 n = pt_head.tqh_first;
1543                 dirNode = n->node;
1544                 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq);
1545                 free(n);
1546
1547                 /* Update the size */
1548                 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE
1549                     + dirNode->isoDirRecord->name_len[0]+
1550                         (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1);
1551                         /* includes the padding bit */
1552
1553                 dirNode->ptnumber=counter;
1554                 if (dirNode != last) {
1555                         last->ptnext = dirNode;
1556                         dirNode->ptprev = last;
1557                 }
1558                 last = dirNode;
1559
1560                 parentRecNum = 1;
1561                 if (dirNode->parent != 0)
1562                         parentRecNum = dirNode->parent->ptnumber;
1563
1564                 /* Push children onto queue */
1565                 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) {
1566                         /*
1567                          * Dont add the DOT and DOTDOT types to the path
1568                          * table.
1569                          */
1570                         if ((cn->type != CD9660_TYPE_DOT)
1571                                 && (cn->type != CD9660_TYPE_DOTDOT)) {
1572
1573                                 if (S_ISDIR(cn->node->type)) {
1574                                         PTQUEUE_NEW(n, ptq_entry, -1, cn);
1575                                         TAILQ_INSERT_TAIL(&pt_head, n, ptq);
1576                                 }
1577                         }
1578                 }
1579                 counter++;
1580         }
1581         return pathTableSize;
1582 }
1583
1584 void
1585 cd9660_compute_full_filename(cd9660node *node, char *buf)
1586 {
1587         int len;
1588
1589         len = CD9660MAXPATH + 1;
1590         len = snprintf(buf, len, "%s/%s/%s", node->node->root,
1591             node->node->path, node->node->name);
1592         if (len > CD9660MAXPATH)
1593                 errx(1, "Pathname too long.");
1594 }
1595
1596 /* NEW filename conversion method */
1597 typedef int(*cd9660_filename_conversion_functor)(const char *, char *, int);
1598
1599
1600 /*
1601  * TODO: These two functions are almost identical.
1602  * Some code cleanup is possible here
1603  *
1604  * XXX bounds checking!
1605  */
1606 static int
1607 cd9660_level1_convert_filename(const char *oldname, char *newname, int is_file)
1608 {
1609         /*
1610          * ISO 9660 : 10.1
1611          * File Name shall not contain more than 8 d or d1 characters
1612          * File Name Extension shall not contain more than 3 d or d1 characters
1613          * Directory Identifier shall not contain more than 8 d or d1 characters
1614          */
1615         int namelen = 0;
1616         int extlen = 0;
1617         int found_ext = 0;
1618
1619         while (*oldname != '\0' && extlen < 3) {
1620                 /* Handle period first, as it is special */
1621                 if (*oldname == '.') {
1622                         if (found_ext) {
1623                                 *newname++ = '_';
1624                                 extlen ++;
1625                         }
1626                         else {
1627                                 *newname++ = '.';
1628                                 found_ext = 1;
1629                         }
1630                 } else {
1631                         /* cut RISC OS file type off ISO name */
1632                         if (diskStructure.archimedes_enabled &&
1633                             *oldname == ',' && strlen(oldname) == 4)
1634                                 break;
1635                         /* Enforce 12.3 / 8 */
1636                         if (namelen == 8 && !found_ext)
1637                                 break;
1638
1639                         if (islower((unsigned char)*oldname))
1640                                 *newname++ = toupper((unsigned char)*oldname);
1641                         else if (isupper((unsigned char)*oldname)
1642                                     || isdigit((unsigned char)*oldname))
1643                                 *newname++ = *oldname;
1644                         else
1645                                 *newname++ = '_';
1646
1647                         if (found_ext)
1648                                 extlen++;
1649                         else
1650                                 namelen++;
1651                 }
1652                 oldname ++;
1653         }
1654         if (is_file) {
1655                 if (!found_ext && !diskStructure.omit_trailing_period)
1656                         *newname++ = '.';
1657                 /* Add version */
1658                 sprintf(newname, ";%i", 1);
1659         }
1660         return namelen + extlen + found_ext;
1661 }
1662
1663 /* XXX bounds checking! */
1664 static int
1665 cd9660_level2_convert_filename(const char *oldname, char *newname, int is_file)
1666 {
1667         /*
1668          * ISO 9660 : 7.5.1
1669          * File name : 0+ d or d1 characters
1670          * separator 1 (.)
1671          * File name extension : 0+ d or d1 characters
1672          * separator 2 (;)
1673          * File version number (5 characters, 1-32767)
1674          * 1 <= Sum of File name and File name extension <= 30
1675          */
1676         int namelen = 0;
1677         int extlen = 0;
1678         int found_ext = 0;
1679
1680         while (*oldname != '\0' && namelen + extlen < 30) {
1681                 /* Handle period first, as it is special */
1682                 if (*oldname == '.') {
1683                         if (found_ext) {
1684                                 if (diskStructure.allow_multidot) {
1685                                         *newname++ = '.';
1686                                 } else {
1687                                         *newname++ = '_';
1688                                 }
1689                                 extlen ++;
1690                         }
1691                         else {
1692                                 *newname++ = '.';
1693                                 found_ext = 1;
1694                         }
1695                 } else {
1696                         /* cut RISC OS file type off ISO name */
1697                         if (diskStructure.archimedes_enabled &&
1698                             *oldname == ',' && strlen(oldname) == 4)
1699                                 break;
1700
1701                          if (islower((unsigned char)*oldname))
1702                                 *newname++ = toupper((unsigned char)*oldname);
1703                         else if (isupper((unsigned char)*oldname) ||
1704                             isdigit((unsigned char)*oldname))
1705                                 *newname++ = *oldname;
1706                         else if (diskStructure.allow_multidot &&
1707                             *oldname == '.') {
1708                                 *newname++ = '.';
1709                         } else {
1710                                 *newname++ = '_';
1711                         }
1712
1713                         if (found_ext)
1714                                 extlen++;
1715                         else
1716                                 namelen++;
1717                 }
1718                 oldname ++;
1719         }
1720         if (is_file) {
1721                 if (!found_ext && !diskStructure.omit_trailing_period)
1722                         *newname++ = '.';
1723                 /* Add version */
1724                 sprintf(newname, ";%i", 1);
1725         }
1726         return namelen + extlen + found_ext;
1727 }
1728
1729 #if 0
1730 static int
1731 cd9660_joliet_convert_filename(const char *oldname, char *newname, int is_file)
1732 {
1733         /* TODO: implement later, move to cd9660_joliet.c ?? */
1734 }
1735 #endif
1736
1737
1738 /*
1739  * Convert a file name to ISO compliant file name
1740  * @param char * oldname The original filename
1741  * @param char ** newname The new file name, in the appropriate character
1742  *                        set and of appropriate length
1743  * @param int 1 if file, 0 if directory
1744  * @returns int The length of the new string
1745  */
1746 static int
1747 cd9660_convert_filename(const char *oldname, char *newname, int is_file)
1748 {
1749         /* NEW */
1750         cd9660_filename_conversion_functor conversion_function = 0;
1751         if (diskStructure.isoLevel == 1)
1752                 conversion_function = &cd9660_level1_convert_filename;
1753         else if (diskStructure.isoLevel == 2)
1754                 conversion_function = &cd9660_level2_convert_filename;
1755         return (*conversion_function)(oldname, newname, is_file);
1756 }
1757
1758 int
1759 cd9660_compute_record_size(cd9660node *node)
1760 {
1761         int size = node->isoDirRecord->length[0];
1762
1763         if (diskStructure.rock_ridge_enabled)
1764                 size += node->susp_entry_size;
1765         size += node->su_tail_size;
1766         size += size & 1; /* Ensure length of record is even. */
1767         assert(size <= 254);
1768         return size;
1769 }
1770
1771 static void
1772 cd9660_populate_dot_records(cd9660node *node)
1773 {
1774         node->dot_record->fileDataSector = node->fileDataSector;
1775         memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34);
1776         node->dot_record->isoDirRecord->name_len[0] = 1;
1777         node->dot_record->isoDirRecord->name[0] = 0;
1778         node->dot_record->isoDirRecord->name[1] = 0;
1779         node->dot_record->isoDirRecord->length[0] = 34;
1780         node->dot_record->fileRecordSize =
1781             cd9660_compute_record_size(node->dot_record);
1782
1783         if (node == diskStructure.rootNode) {
1784                 node->dot_dot_record->fileDataSector = node->fileDataSector;
1785                 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord,
1786                     34);
1787         } else {
1788                 node->dot_dot_record->fileDataSector =
1789                     node->parent->fileDataSector;
1790                 memcpy(node->dot_dot_record->isoDirRecord,
1791                     node->parent->isoDirRecord,34);
1792         }
1793         node->dot_dot_record->isoDirRecord->name_len[0] = 1;
1794         node->dot_dot_record->isoDirRecord->name[0] = 1;
1795         node->dot_dot_record->isoDirRecord->name[1] = 0;
1796         node->dot_dot_record->isoDirRecord->length[0] = 34;
1797         node->dot_dot_record->fileRecordSize =
1798             cd9660_compute_record_size(node->dot_dot_record);
1799 }
1800
1801 /*
1802  * @param struct cd9660node *node The node
1803  * @param int The offset (in bytes) - SHOULD align to the beginning of a sector
1804  * @returns int The total size of files and directory entries (should be
1805  *              a multiple of sector size)
1806 */
1807 static int64_t
1808 cd9660_compute_offsets(cd9660node *node, int64_t startOffset)
1809 {
1810         /*
1811          * This function needs to compute the size of directory records and
1812          * runs, file lengths, and set the appropriate variables both in
1813          * cd9660node and isoDirEntry
1814          */
1815         int64_t used_bytes = 0;
1816         int64_t current_sector_usage = 0;
1817         cd9660node *child;
1818         fsinode *inode;
1819         int64_t r;
1820
1821         assert(node != NULL);
1822
1823
1824         /*
1825          * NOTE : There needs to be some special case detection for
1826          * the "real root" node, since for it, node->node is undefined
1827          */
1828
1829         node->fileDataSector = -1;
1830
1831         if (node->type & CD9660_TYPE_DIR) {
1832                 node->fileRecordSize = cd9660_compute_record_size(node);
1833                 /*Set what sector this directory starts in*/
1834                 node->fileDataSector =
1835                     CD9660_BLOCKS(diskStructure.sectorSize,startOffset);
1836
1837                 cd9660_bothendian_dword(node->fileDataSector,
1838                     node->isoDirRecord->extent);
1839
1840                 /*
1841                  * First loop over children, need to know the size of
1842                  * their directory records
1843                  */
1844                 node->fileSectorsUsed = 1;
1845                 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) {
1846                         node->fileDataLength +=
1847                             cd9660_compute_record_size(child);
1848                         if ((cd9660_compute_record_size(child) +
1849                             current_sector_usage) >=
1850                             diskStructure.sectorSize) {
1851                                 current_sector_usage = 0;
1852                                 node->fileSectorsUsed++;
1853                         }
1854
1855                         current_sector_usage +=
1856                             cd9660_compute_record_size(child);
1857                 }
1858
1859                 cd9660_bothendian_dword(node->fileSectorsUsed *
1860                         diskStructure.sectorSize,node->isoDirRecord->size);
1861
1862                 /*
1863                  * This should point to the sector after the directory
1864                  * record (or, the first byte in that sector)
1865                  */
1866                 used_bytes += node->fileSectorsUsed * diskStructure.sectorSize;
1867
1868                 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1869                      child != NULL; child = TAILQ_NEXT(child, cn_next_child)) {
1870                         /* Directories need recursive call */
1871                         if (S_ISDIR(child->node->type)) {
1872                                 r = cd9660_compute_offsets(child,
1873                                     used_bytes + startOffset);
1874
1875                                 if (r != -1)
1876                                         used_bytes += r;
1877                                 else
1878                                         return -1;
1879                         }
1880                 }
1881
1882                 /* Explicitly set the . and .. records */
1883                 cd9660_populate_dot_records(node);
1884
1885                 /* Finally, do another iteration to write the file data*/
1886                 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1887                      child != NULL;
1888                      child = TAILQ_NEXT(child, cn_next_child)) {
1889                         /* Files need extent set */
1890                         if (S_ISDIR(child->node->type))
1891                                 continue;
1892                         child->fileRecordSize =
1893                             cd9660_compute_record_size(child);
1894
1895                         child->fileSectorsUsed =
1896                             CD9660_BLOCKS(diskStructure.sectorSize,
1897                                 child->fileDataLength);
1898
1899                         inode = child->node->inode;
1900                         if ((inode->flags & FI_ALLOCATED) == 0) {
1901                                 inode->ino =
1902                                     CD9660_BLOCKS(diskStructure.sectorSize,
1903                                         used_bytes + startOffset);
1904                                 inode->flags |= FI_ALLOCATED;
1905                                 used_bytes += child->fileSectorsUsed *
1906                                     diskStructure.sectorSize;
1907                         } else {
1908                                 INODE_WARNX(("%s: already allocated inode %d "
1909                                       "data sectors at %" PRIu32, __func__,
1910                                       (int)inode->st.st_ino, inode->ino));
1911                         }
1912                         child->fileDataSector = inode->ino;
1913                         cd9660_bothendian_dword(child->fileDataSector,
1914                                 child->isoDirRecord->extent);
1915                 }
1916         }
1917
1918         return used_bytes;
1919 }
1920
1921 #if 0
1922 /* Might get rid of this func */
1923 static int
1924 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file)
1925 {
1926         to->node->inode->st.st_dev = 0;
1927         to->node->inode->st.st_ino = 0;
1928         to->node->inode->st.st_size = 0;
1929         to->node->inode->st.st_blksize = from->node->inode->st.st_blksize;
1930         to->node->inode->st.st_atime = from->node->inode->st.st_atime;
1931         to->node->inode->st.st_mtime = from->node->inode->st.st_mtime;
1932         to->node->inode->st.st_ctime = from->node->inode->st.st_ctime;
1933         to->node->inode->st.st_uid = from->node->inode->st.st_uid;
1934         to->node->inode->st.st_gid = from->node->inode->st.st_gid;
1935         to->node->inode->st.st_mode = from->node->inode->st.st_mode;
1936         /* Clear out type */
1937         to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT);
1938         if (file)
1939                 to->node->inode->st.st_mode |= S_IFREG;
1940         else
1941                 to->node->inode->st.st_mode |= S_IFDIR;
1942         return 1;
1943 }
1944 #endif
1945
1946 static cd9660node *
1947 cd9660_create_virtual_entry(const char *name, cd9660node *parent, int file,
1948                             int insert)
1949 {
1950         cd9660node *temp;
1951         fsnode * tfsnode;
1952
1953         assert(parent != NULL);
1954
1955         temp = cd9660_allocate_cd9660node();
1956         if (temp == NULL)
1957                 return NULL;
1958
1959         if ((tfsnode = malloc(sizeof(fsnode))) == NULL) {
1960                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1961                 return NULL;
1962         }
1963
1964         /* Assume for now name is a valid length */
1965         if ((tfsnode->name = malloc(strlen(name) + 1)) == NULL) {
1966                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1967                 return NULL;
1968         }
1969
1970         if ((temp->isoDirRecord =
1971             malloc(sizeof(iso_directory_record_cd9660))) == NULL) {
1972                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1973                 return NULL;
1974         }
1975
1976         strcpy(tfsnode->name, name);
1977
1978         cd9660_convert_filename(tfsnode->name, temp->isoDirRecord->name, file);
1979
1980         temp->node = tfsnode;
1981         temp->parent = parent;
1982
1983         if (insert) {
1984                 if (temp->parent != NULL) {
1985                         temp->level = temp->parent->level + 1;
1986                         if (!TAILQ_EMPTY(&temp->parent->cn_children))
1987                                 cd9660_sorted_child_insert(temp->parent, temp);
1988                         else
1989                                 TAILQ_INSERT_HEAD(&temp->parent->cn_children,
1990                                     temp, cn_next_child);
1991                 }
1992         }
1993
1994         if (parent->node != NULL) {
1995                 tfsnode->type = parent->node->type;
1996         }
1997
1998         /* Clear out file type bits */
1999         tfsnode->type &= ~(S_IFMT);
2000         if (file)
2001                 tfsnode->type |= S_IFREG;
2002         else
2003                 tfsnode->type |= S_IFDIR;
2004
2005         /* Indicate that there is no spec entry (inode) */
2006         tfsnode->flags &= ~(FSNODE_F_HASSPEC);
2007 #if 0
2008         cd9660_copy_stat_info(parent, temp, file);
2009 #endif
2010         return temp;
2011 }
2012
2013 static cd9660node *
2014 cd9660_create_file(const char * name, cd9660node *parent, cd9660node *me)
2015 {
2016         cd9660node *temp;
2017
2018         temp = cd9660_create_virtual_entry(name,parent,1,1);
2019         if (temp == NULL)
2020                 return NULL;
2021
2022         temp->fileDataLength = 0;
2023
2024         temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL;
2025
2026         if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2027                 return NULL;
2028         *temp->node->inode = *me->node->inode;
2029
2030         if (cd9660_translate_node_common(temp) == 0)
2031                 return NULL;
2032         return temp;
2033 }
2034
2035 /*
2036  * Create a new directory which does not exist on disk
2037  * @param const char * name The name to assign to the directory
2038  * @param const char * parent Pointer to the parent directory
2039  * @returns cd9660node * Pointer to the new directory
2040  */
2041 static cd9660node *
2042 cd9660_create_directory(const char *name, cd9660node *parent, cd9660node *me)
2043 {
2044         cd9660node *temp;
2045
2046         temp = cd9660_create_virtual_entry(name,parent,0,1);
2047         if (temp == NULL)
2048                 return NULL;
2049         temp->node->type |= S_IFDIR;
2050
2051         temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL;
2052
2053         if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2054                 return NULL;
2055         *temp->node->inode = *me->node->inode;
2056
2057         if (cd9660_translate_node_common(temp) == 0)
2058                 return NULL;
2059         return temp;
2060 }
2061
2062 static cd9660node *
2063 cd9660_create_special_directory(u_char type, cd9660node *parent)
2064 {
2065         cd9660node *temp, *first;
2066         char na[2];
2067
2068         assert(parent != NULL);
2069
2070         if (type == CD9660_TYPE_DOT)
2071                 na[0] = 0;
2072         else if (type == CD9660_TYPE_DOTDOT)
2073                 na[0] = 1;
2074         else
2075                 return 0;
2076
2077         na[1] = 0;
2078         if ((temp = cd9660_create_virtual_entry(na, parent, 0, 0)) == NULL)
2079                 return NULL;
2080
2081         temp->parent = parent;
2082         temp->type = type;
2083         temp->isoDirRecord->length[0] = 34;
2084         /* Dot record is always first */
2085         if (type == CD9660_TYPE_DOT) {
2086                 parent->dot_record = temp;
2087                 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child);
2088         /* DotDot should be second */
2089         } else if (type == CD9660_TYPE_DOTDOT) {
2090                 parent->dot_dot_record = temp;
2091                 /*
2092                  * If the first child is the dot record, insert
2093                  * this second.  Otherwise, insert it at the head.
2094                  */
2095                 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL ||
2096                     (first->type & CD9660_TYPE_DOT) == 0) {
2097                         TAILQ_INSERT_HEAD(&parent->cn_children, temp,
2098                             cn_next_child);
2099                 } else {
2100                         TAILQ_INSERT_AFTER(&parent->cn_children, first, temp,
2101                             cn_next_child);
2102                 }
2103         }
2104
2105         return temp;
2106 }
2107
2108 int
2109 cd9660_add_generic_bootimage(const char *bootimage)
2110 {
2111         struct stat stbuf;
2112
2113         assert(bootimage != NULL);
2114
2115         if (*bootimage == '\0') {
2116                 warnx("Error: Boot image must be a filename");
2117                 return 0;
2118         }
2119
2120         if ((diskStructure.generic_bootimage = strdup(bootimage)) == NULL) {
2121                 warn("%s: strdup", __func__);
2122                 return 0;
2123         }
2124
2125         /* Get information about the file */
2126         if (lstat(diskStructure.generic_bootimage, &stbuf) == -1)
2127                 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__,
2128                     diskStructure.generic_bootimage);
2129
2130         if (stbuf.st_size > 32768) {
2131                 warnx("Error: Boot image must be no greater than 32768 bytes");
2132                 return 0;
2133         }
2134
2135         if (diskStructure.verbose_level > 0) {
2136                 printf("Generic boot image image has size %lld\n",
2137                     (long long)stbuf.st_size);
2138         }
2139
2140         diskStructure.has_generic_bootimage = 1;
2141
2142         return 1;
2143 }