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, "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, 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
 625         /* root should be a fixed size of 34 bytes since it has no name */
 626         memcpy(diskStructure.primaryDescriptor.root_directory_record,
 627                 diskStructure.rootNode->dot_record->isoDirRecord, 34);
 628
 629         /* In RRIP, this might be longer than 34 */
 630         diskStructure.primaryDescriptor.root_directory_record[0] = 34;
 631
 632         /* Set up all the important numbers in the PVD */
 633         cd9660_bothendian_dword(diskStructure.totalSectors,
 634             (unsigned char *)diskStructure.primaryDescriptor.volume_space_size);
 635         cd9660_bothendian_word(1,
 636             (unsigned char *)diskStructure.primaryDescriptor.volume_set_size);
 637         cd9660_bothendian_word(1,
 638             (unsigned char *)
 639                 diskStructure.primaryDescriptor.volume_sequence_number);
 640         cd9660_bothendian_word(diskStructure.sectorSize,
 641             (unsigned char *)
 642                 diskStructure.primaryDescriptor.logical_block_size);
 643         cd9660_bothendian_dword(diskStructure.pathTableLength,
 644             (unsigned char *)diskStructure.primaryDescriptor.path_table_size);
 645
 646         cd9660_731(diskStructure.primaryLittleEndianTableSector,
 647                 (u_char *)diskStructure.primaryDescriptor.type_l_path_table);
 648         cd9660_732(diskStructure.primaryBigEndianTableSector,
 649                 (u_char *)diskStructure.primaryDescriptor.type_m_path_table);
 650
 651         diskStructure.primaryDescriptor.file_structure_version[0] = 1;
 652
 653         /* Pad all strings with spaces instead of nulls */
 654         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_id, 32);
 655         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.system_id, 32);
 656         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_set_id,
 657             128);
 658         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.publisher_id,
 659             128);
 660         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.preparer_id,
 661             128);
 662         cd9660_pad_string_spaces(diskStructure.primaryDescriptor.application_id,
 663             128);
 664         cd9660_pad_string_spaces(
 665             diskStructure.primaryDescriptor.copyright_file_id, 37);
 666         cd9660_pad_string_spaces(
 667                 diskStructure.primaryDescriptor.abstract_file_id, 37);
 668         cd9660_pad_string_spaces(
 669                 diskStructure.primaryDescriptor.bibliographic_file_id, 37);
 670
 671         /* Setup dates */
 672         time(&tim);
 673         cd9660_time_8426(
 674             (unsigned char *)diskStructure.primaryDescriptor.creation_date,
 675             tim);
 676         cd9660_time_8426(
 677             (unsigned char *)diskStructure.primaryDescriptor.modification_date,
 678             tim);
 679
 680         /*
 681         cd9660_set_date(diskStructure.primaryDescriptor.expiration_date, now);
 682         */
 683
 684         memset(diskStructure.primaryDescriptor.expiration_date, '0', 16);
 685         diskStructure.primaryDescriptor.expiration_date[16] = 0;
 686         cd9660_time_8426(
 687             (unsigned char *)diskStructure.primaryDescriptor.effective_date,
 688             tim);
 689 }
 690
 691 static void
 692 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record,
 693                                u_char ext_attr_length, u_char flags,
 694                                u_char name_len, const char * name)
 695 {
 696         record->ext_attr_length[0] = ext_attr_length;
 697         record->flags[0] = ISO_FLAG_CLEAR | flags;
 698         record->file_unit_size[0] = 0;
 699         record->interleave[0] = 0;
 700         cd9660_bothendian_word(1, record->volume_sequence_number);
 701         record->name_len[0] = name_len;
 702         memset(record->name, '\0', sizeof (record->name));
 703         memcpy(record->name, name, name_len);
 704         record->length[0] = 33 + name_len;
 705
 706         /* Todo : better rounding */
 707         record->length[0] += (record->length[0] & 1) ? 1 : 0;
 708 }
 709
 710 static void
 711 cd9660_setup_root_node(void)
 712 {
 713         cd9660_populate_iso_dir_record(diskStructure.rootNode->isoDirRecord,
 714             0, ISO_FLAG_DIRECTORY, 1, "\0");
 715
 716 }
 717
 718 /*********** SUPPORT FUNCTIONS ***********/
 719 static int
 720 cd9660_setup_volume_descriptors(void)
 721 {
 722         /* Boot volume descriptor should come second */
 723         int sector = 16;
 724         /* For now, a fixed 2 : PVD and terminator */
 725         volume_descriptor *temp, *t;
 726
 727         /* Set up the PVD */
 728         if ((temp = malloc(sizeof(volume_descriptor))) == NULL) {
 729                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 730                 exit(1);
 731         }
 732
 733         temp->volumeDescriptorData =
 734            (unsigned char *)&diskStructure.primaryDescriptor;
 735         temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD;
 736         temp->volumeDescriptorData[6] = 1;
 737         temp->sector = sector;
 738         memcpy(temp->volumeDescriptorData + 1,
 739             ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
 740         diskStructure.firstVolumeDescriptor = temp;
 741
 742         sector++;
 743         /* Set up boot support if enabled. BVD must reside in sector 17 */
 744         if (diskStructure.is_bootable) {
 745                 if ((t = malloc(sizeof(volume_descriptor))) == NULL) {
 746                         CD9660_MEM_ALLOC_ERROR(
 747                             "cd9660_setup_volume_descriptors");
 748                         exit(1);
 749                 }
 750                 if ((t->volumeDescriptorData = malloc(2048)) == NULL) {
 751                         CD9660_MEM_ALLOC_ERROR(
 752                             "cd9660_setup_volume_descriptors");
 753                         exit(1);
 754                 }
 755                 temp->next = t;
 756                 temp = t;
 757                 memset(t->volumeDescriptorData, 0, 2048);
 758                 t->sector = 17;
 759                 if (diskStructure.verbose_level > 0)
 760                         printf("Setting up boot volume descriptor\n");
 761                 cd9660_setup_boot_volume_descriptor(t);
 762                 sector++;
 763         }
 764
 765         /* Set up the terminator */
 766         if ((t = malloc(sizeof(volume_descriptor))) == NULL) {
 767                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 768                 exit(1);
 769         }
 770         if ((t->volumeDescriptorData = malloc(2048)) == NULL) {
 771                 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
 772                 exit(1);
 773         }
 774
 775         temp->next = t;
 776         memset(t->volumeDescriptorData, 0, 2048);
 777         t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR;
 778         t->next = 0;
 779         t->volumeDescriptorData[6] = 1;
 780         t->sector = sector;
 781         memcpy(t->volumeDescriptorData + 1,
 782             ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
 783
 784         sector++;
 785         return sector;
 786 }
 787
 788 #if 0
 789 /*
 790  * Populate EAR at some point. Not required, but is used by NetBSD's
 791  * cd9660 support
 792  */
 793 static int
 794 cd9660_fill_extended_attribute_record(cd9660node *node)
 795 {
 796         if ((node->isoExtAttributes =
 797             malloc(sizeof(struct iso_extended_attributes))) == NULL) {
 798                 CD9660_MEM_ALLOC_ERROR("cd9660_fill_extended_attribute_record");
 799                 exit(1);
 800         };
 801
 802         return 1;
 803 }
 804 #endif
 805
 806 static int
 807 cd9660_translate_node_common(cd9660node *newnode)
 808 {
 809         time_t tim;
 810         int test;
 811         u_char flag;
 812         char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING];
 813
 814         /* Now populate the isoDirRecord structure */
 815         memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
 816
 817         test = cd9660_convert_filename(newnode->node->name,
 818                 temp, !(S_ISDIR(newnode->node->type)));
 819
 820         flag = ISO_FLAG_CLEAR;
 821         if (S_ISDIR(newnode->node->type))
 822                 flag |= ISO_FLAG_DIRECTORY;
 823
 824         cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0,
 825             flag, strlen(temp), temp);
 826
 827         /* Set the various dates */
 828
 829         /* If we want to use the current date and time */
 830         time(&tim);
 831
 832         cd9660_time_915(newnode->isoDirRecord->date, tim);
 833
 834         cd9660_bothendian_dword(newnode->fileDataLength,
 835             newnode->isoDirRecord->size);
 836         /* If the file is a link, we want to set the size to 0 */
 837         if (S_ISLNK(newnode->node->type))
 838                 newnode->fileDataLength = 0;
 839
 840         return 1;
 841 }
 842
 843 /*
 844  * Translate fsnode to cd9660node
 845  * Translate filenames and other metadata, including dates, sizes,
 846  * permissions, etc
 847  * @param struct fsnode * The node generated by makefs
 848  * @param struct cd9660node * The intermediate node to be written to
 849  * @returns int 0 on failure, 1 on success
 850  */
 851 static int
 852 cd9660_translate_node(fsnode *node, cd9660node *newnode)
 853 {
 854         if (node == NULL) {
 855                 if (diskStructure.verbose_level > 0)
 856                         printf("cd9660_translate_node: NULL node passed, "
 857                                "returning\n");
 858                 return 0;
 859         }
 860         if ((newnode->isoDirRecord =
 861                 malloc(sizeof(iso_directory_record_cd9660))) == NULL) {
 862                 CD9660_MEM_ALLOC_ERROR("cd9660_translate_node");
 863                 return 0;
 864         }
 865
 866         /* Set the node pointer */
 867         newnode->node = node;
 868
 869         /* Set the size */
 870         if (!(S_ISDIR(node->type)))
 871                 newnode->fileDataLength = node->inode->st.st_size;
 872
 873         if (cd9660_translate_node_common(newnode) == 0)
 874                 return 0;
 875
 876         /* Finally, overwrite some of the values that are set by default */
 877         cd9660_time_915(newnode->isoDirRecord->date, node->inode->st.st_mtime);
 878
 879         return 1;
 880 }
 881
 882 /*
 883  * Compares two ISO filenames
 884  * @param const char * The first file name
 885  * @param const char * The second file name
 886  * @returns : -1 if first is less than second, 0 if they are the same, 1 if
 887  *      the second is greater than the first
 888  */
 889 static int
 890 cd9660_compare_filename(const char *first, const char *second)
 891 {
 892         /*
 893          * This can be made more optimal once it has been tested
 894          * (the extra character, for example, is for testing)
 895          */
 896
 897         int p1 = 0;
 898         int p2 = 0;
 899         char c1, c2;
 900         /* First, on the filename */
 901
 902         while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1
 903                 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) {
 904                 c1 = first[p1];
 905                 c2 = second[p2];
 906                 if (c1 == '.' && c2 =='.')
 907                         break;
 908                 else if (c1 == '.') {
 909                         p2++;
 910                         c1 = ' ';
 911                 } else if (c2 == '.') {
 912                         p1++;
 913                         c2 = ' ';
 914                 } else {
 915                         p1++;
 916                         p2++;
 917                 }
 918
 919                 if (c1 < c2)
 920                         return -1;
 921                 else if (c1 > c2) {
 922                         return 1;
 923                 }
 924         }
 925
 926         if (first[p1] == '.' && second[p2] == '.') {
 927                 p1++;
 928                 p2++;
 929                 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1
 930                         && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) {
 931                         c1 = first[p1];
 932                         c2 = second[p2];
 933                         if (c1 == ';' && c2 == ';')
 934                                 break;
 935                         else if (c1 == ';') {
 936                                 p2++;
 937                                 c1 = ' ';
 938                         } else if (c2 == ';') {
 939                                 p1++;
 940                                 c2 = ' ';
 941                         } else {
 942                                 p1++;
 943                                 p2++;
 944                         }
 945
 946                         if (c1 < c2)
 947                                 return -1;
 948                         else if (c1 > c2)
 949                                 return 1;
 950                 }
 951         }
 952         return 0;
 953 }
 954
 955 /*
 956  * Insert a node into list with ISO sorting rules
 957  * @param cd9660node * The head node of the list
 958  * @param cd9660node * The node to be inserted
 959  */
 960 static void
 961 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new)
 962 {
 963         int compare;
 964         cd9660node *cn;
 965         struct cd9660_children_head *head = &parent->cn_children;
 966
 967         /* TODO: Optimize? */
 968         cn_new->parent = parent;
 969
 970         /*
 971          * first will either be 0, the . or the ..
 972          * if . or .., this means no other entry may be written before first
 973          * if 0, the new node may be inserted at the head
 974          */
 975
 976         TAILQ_FOREACH(cn, head, cn_next_child) {
 977                 /*
 978                  * Dont insert a node twice -
 979                  * that would cause an infinite loop
 980                  */
 981                 if (cn_new == cn)
 982                         return;
 983
 984                 compare = cd9660_compare_filename(cn_new->isoDirRecord->name,
 985                         cn->isoDirRecord->name);
 986
 987                 if (compare == 0)
 988                         compare = cd9660_compare_filename(cn_new->node->name,
 989                                 cn->node->name);
 990
 991                 if (compare < 0)
 992                         break;
 993         }
 994         if (cn == NULL)
 995                 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child);
 996         else
 997                 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child);
 998 }
 999
1000 /*
1001  * Called After cd9660_sorted_child_insert
1002  * handles file collisions by suffixing each filname with ~n
1003  * where n represents the files respective place in the ordering
1004  */
1005 static int
1006 cd9660_handle_collisions(cd9660node *colliding, int past)
1007 {
1008         cd9660node *iter, *next, *prev;
1009         int skip;
1010         int delete_chars = 0;
1011         int temp_past = past;
1012         int temp_skip;
1013         int flag = 0;
1014         cd9660node *end_of_range;
1015
1016         for (iter = TAILQ_FIRST(&colliding->cn_children);
1017              iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) {
1018                 if (strcmp(iter->isoDirRecord->name,
1019                            next->isoDirRecord->name) != 0) {
1020                         iter = TAILQ_NEXT(iter, cn_next_child);
1021                         continue;
1022                 }
1023                 flag = 1;
1024                 temp_skip = skip = cd9660_count_collisions(iter);
1025                 end_of_range = iter;
1026                 while (temp_skip > 0) {
1027                         temp_skip--;
1028                         end_of_range = TAILQ_NEXT(end_of_range, cn_next_child);
1029                 }
1030                 temp_past = past;
1031                 while (temp_past > 0) {
1032                         if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL)
1033                                 end_of_range = next;
1034                         else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL)
1035                                 iter = prev;
1036                         else
1037                                 delete_chars++;
1038                         temp_past--;
1039                 }
1040                 skip += past;
1041                 iter = cd9660_rename_filename(iter, skip, delete_chars);
1042         }
1043         return flag;
1044 }
1045
1046
1047 static cd9660node *
1048 cd9660_rename_filename(cd9660node *iter, int num, int delete_chars)
1049 {
1050         int i = 0;
1051         int numbts, digit, digits, temp, powers, count;
1052         char *naming;
1053         int maxlength;
1054         char *tmp;
1055
1056         if (diskStructure.verbose_level > 0)
1057                 printf("Rename_filename called\n");
1058
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         /* NEW */
1735         cd9660_filename_conversion_functor conversion_function = 0;
1736         if (diskStructure.isoLevel == 1)
1737                 conversion_function = &cd9660_level1_convert_filename;
1738         else if (diskStructure.isoLevel == 2)
1739                 conversion_function = &cd9660_level2_convert_filename;
1740         return (*conversion_function)(oldname, newname, is_file);
1741 }
1742
1743 int
1744 cd9660_compute_record_size(cd9660node *node)
1745 {
1746         int size = node->isoDirRecord->length[0];
1747
1748         if (diskStructure.rock_ridge_enabled)
1749                 size += node->susp_entry_size;
1750         size += node->su_tail_size;
1751         size += size & 1; /* Ensure length of record is even. */
1752         assert(size <= 254);
1753         return size;
1754 }
1755
1756 static void
1757 cd9660_populate_dot_records(cd9660node *node)
1758 {
1759         node->dot_record->fileDataSector = node->fileDataSector;
1760         memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34);
1761         node->dot_record->isoDirRecord->name_len[0] = 1;
1762         node->dot_record->isoDirRecord->name[0] = 0;
1763         node->dot_record->isoDirRecord->name[1] = 0;
1764         node->dot_record->isoDirRecord->length[0] = 34;
1765         node->dot_record->fileRecordSize =
1766             cd9660_compute_record_size(node->dot_record);
1767
1768         if (node == diskStructure.rootNode) {
1769                 node->dot_dot_record->fileDataSector = node->fileDataSector;
1770                 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord,
1771                     34);
1772         } else {
1773                 node->dot_dot_record->fileDataSector =
1774                     node->parent->fileDataSector;
1775                 memcpy(node->dot_dot_record->isoDirRecord,
1776                     node->parent->isoDirRecord,34);
1777         }
1778         node->dot_dot_record->isoDirRecord->name_len[0] = 1;
1779         node->dot_dot_record->isoDirRecord->name[0] = 1;
1780         node->dot_dot_record->isoDirRecord->name[1] = 0;
1781         node->dot_dot_record->isoDirRecord->length[0] = 34;
1782         node->dot_dot_record->fileRecordSize =
1783             cd9660_compute_record_size(node->dot_dot_record);
1784 }
1785
1786 /*
1787  * @param struct cd9660node *node The node
1788  * @param int The offset (in bytes) - SHOULD align to the beginning of a sector
1789  * @returns int The total size of files and directory entries (should be
1790  *              a multiple of sector size)
1791 */
1792 static int64_t
1793 cd9660_compute_offsets(cd9660node *node, int64_t startOffset)
1794 {
1795         /*
1796          * This function needs to compute the size of directory records and
1797          * runs, file lengths, and set the appropriate variables both in
1798          * cd9660node and isoDirEntry
1799          */
1800         int64_t used_bytes = 0;
1801         int64_t current_sector_usage = 0;
1802         cd9660node *child;
1803         fsinode *inode;
1804         int64_t r;
1805
1806         assert(node != NULL);
1807
1808
1809         /*
1810          * NOTE : There needs to be some special case detection for
1811          * the "real root" node, since for it, node->node is undefined
1812          */
1813
1814         node->fileDataSector = -1;
1815
1816         if (node->type & CD9660_TYPE_DIR) {
1817                 node->fileRecordSize = cd9660_compute_record_size(node);
1818                 /*Set what sector this directory starts in*/
1819                 node->fileDataSector =
1820                     CD9660_BLOCKS(diskStructure.sectorSize,startOffset);
1821
1822                 cd9660_bothendian_dword(node->fileDataSector,
1823                     node->isoDirRecord->extent);
1824
1825                 /*
1826                  * First loop over children, need to know the size of
1827                  * their directory records
1828                  */
1829                 node->fileSectorsUsed = 1;
1830                 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) {
1831                         node->fileDataLength +=
1832                             cd9660_compute_record_size(child);
1833                         if ((cd9660_compute_record_size(child) +
1834                             current_sector_usage) >=
1835                             diskStructure.sectorSize) {
1836                                 current_sector_usage = 0;
1837                                 node->fileSectorsUsed++;
1838                         }
1839
1840                         current_sector_usage +=
1841                             cd9660_compute_record_size(child);
1842                 }
1843
1844                 cd9660_bothendian_dword(node->fileSectorsUsed *
1845                         diskStructure.sectorSize,node->isoDirRecord->size);
1846
1847                 /*
1848                  * This should point to the sector after the directory
1849                  * record (or, the first byte in that sector)
1850                  */
1851                 used_bytes += node->fileSectorsUsed * diskStructure.sectorSize;
1852
1853                 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1854                      child != NULL; child = TAILQ_NEXT(child, cn_next_child)) {
1855                         /* Directories need recursive call */
1856                         if (S_ISDIR(child->node->type)) {
1857                                 r = cd9660_compute_offsets(child,
1858                                     used_bytes + startOffset);
1859
1860                                 if (r != -1)
1861                                         used_bytes += r;
1862                                 else
1863                                         return -1;
1864                         }
1865                 }
1866
1867                 /* Explicitly set the . and .. records */
1868                 cd9660_populate_dot_records(node);
1869
1870                 /* Finally, do another iteration to write the file data*/
1871                 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1872                      child != NULL;
1873                      child = TAILQ_NEXT(child, cn_next_child)) {
1874                         /* Files need extent set */
1875                         if (S_ISDIR(child->node->type))
1876                                 continue;
1877                         child->fileRecordSize =
1878                             cd9660_compute_record_size(child);
1879
1880                         child->fileSectorsUsed =
1881                             CD9660_BLOCKS(diskStructure.sectorSize,
1882                                 child->fileDataLength);
1883
1884                         inode = child->node->inode;
1885                         if ((inode->flags & FI_ALLOCATED) == 0) {
1886                                 inode->ino =
1887                                     CD9660_BLOCKS(diskStructure.sectorSize,
1888                                         used_bytes + startOffset);
1889                                 inode->flags |= FI_ALLOCATED;
1890                                 used_bytes += child->fileSectorsUsed *
1891                                     diskStructure.sectorSize;
1892                         } else {
1893                                 INODE_WARNX(("%s: already allocated inode %d "
1894                                       "data sectors at %" PRIu32, __func__,
1895                                       (int)inode->st.st_ino, inode->ino));
1896                         }
1897                         child->fileDataSector = inode->ino;
1898                         cd9660_bothendian_dword(child->fileDataSector,
1899                                 child->isoDirRecord->extent);
1900                 }
1901         }
1902
1903         return used_bytes;
1904 }
1905
1906 #if 0
1907 /* Might get rid of this func */
1908 static int
1909 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file)
1910 {
1911         to->node->inode->st.st_dev = 0;
1912         to->node->inode->st.st_ino = 0;
1913         to->node->inode->st.st_size = 0;
1914         to->node->inode->st.st_blksize = from->node->inode->st.st_blksize;
1915         to->node->inode->st.st_atime = from->node->inode->st.st_atime;
1916         to->node->inode->st.st_mtime = from->node->inode->st.st_mtime;
1917         to->node->inode->st.st_ctime = from->node->inode->st.st_ctime;
1918         to->node->inode->st.st_uid = from->node->inode->st.st_uid;
1919         to->node->inode->st.st_gid = from->node->inode->st.st_gid;
1920         to->node->inode->st.st_mode = from->node->inode->st.st_mode;
1921         /* Clear out type */
1922         to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT);
1923         if (file)
1924                 to->node->inode->st.st_mode |= S_IFREG;
1925         else
1926                 to->node->inode->st.st_mode |= S_IFDIR;
1927         return 1;
1928 }
1929 #endif
1930
1931 static cd9660node *
1932 cd9660_create_virtual_entry(const char *name, cd9660node *parent, int file,
1933                             int insert)
1934 {
1935         cd9660node *temp;
1936         fsnode * tfsnode;
1937
1938         assert(parent != NULL);
1939
1940         temp = cd9660_allocate_cd9660node();
1941         if (temp == NULL)
1942                 return NULL;
1943
1944         if ((tfsnode = malloc(sizeof(fsnode))) == NULL) {
1945                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1946                 return NULL;
1947         }
1948
1949         /* Assume for now name is a valid length */
1950         if ((tfsnode->name = malloc(strlen(name) + 1)) == NULL) {
1951                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1952                 return NULL;
1953         }
1954
1955         if ((temp->isoDirRecord =
1956             malloc(sizeof(iso_directory_record_cd9660))) == NULL) {
1957                 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
1958                 return NULL;
1959         }
1960
1961         strcpy(tfsnode->name, name);
1962
1963         cd9660_convert_filename(tfsnode->name, temp->isoDirRecord->name, file);
1964
1965         temp->node = tfsnode;
1966         temp->parent = parent;
1967
1968         if (insert) {
1969                 if (temp->parent != NULL) {
1970                         temp->level = temp->parent->level + 1;
1971                         if (!TAILQ_EMPTY(&temp->parent->cn_children))
1972                                 cd9660_sorted_child_insert(temp->parent, temp);
1973                         else
1974                                 TAILQ_INSERT_HEAD(&temp->parent->cn_children,
1975                                     temp, cn_next_child);
1976                 }
1977         }
1978
1979         if (parent->node != NULL) {
1980                 tfsnode->type = parent->node->type;
1981         }
1982
1983         /* Clear out file type bits */
1984         tfsnode->type &= ~(S_IFMT);
1985         if (file)
1986                 tfsnode->type |= S_IFREG;
1987         else
1988                 tfsnode->type |= S_IFDIR;
1989
1990         /* Indicate that there is no spec entry (inode) */
1991         tfsnode->flags &= ~(FSNODE_F_HASSPEC);
1992 #if 0
1993         cd9660_copy_stat_info(parent, temp, file);
1994 #endif
1995         return temp;
1996 }
1997
1998 static cd9660node *
1999 cd9660_create_file(const char * name, cd9660node *parent, cd9660node *me)
2000 {
2001         cd9660node *temp;
2002
2003         temp = cd9660_create_virtual_entry(name,parent,1,1);
2004         if (temp == NULL)
2005                 return NULL;
2006
2007         temp->fileDataLength = 0;
2008
2009         temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL;
2010
2011         if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2012                 return NULL;
2013         *temp->node->inode = *me->node->inode;
2014
2015         if (cd9660_translate_node_common(temp) == 0)
2016                 return NULL;
2017         return temp;
2018 }
2019
2020 /*
2021  * Create a new directory which does not exist on disk
2022  * @param const char * name The name to assign to the directory
2023  * @param const char * parent Pointer to the parent directory
2024  * @returns cd9660node * Pointer to the new directory
2025  */
2026 static cd9660node *
2027 cd9660_create_directory(const char *name, cd9660node *parent, cd9660node *me)
2028 {
2029         cd9660node *temp;
2030
2031         temp = cd9660_create_virtual_entry(name,parent,0,1);
2032         if (temp == NULL)
2033                 return NULL;
2034         temp->node->type |= S_IFDIR;
2035
2036         temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL;
2037
2038         if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2039                 return NULL;
2040         *temp->node->inode = *me->node->inode;
2041
2042         if (cd9660_translate_node_common(temp) == 0)
2043                 return NULL;
2044         return temp;
2045 }
2046
2047 static cd9660node *
2048 cd9660_create_special_directory(u_char type, cd9660node *parent)
2049 {
2050         cd9660node *temp, *first;
2051         char na[2];
2052
2053         assert(parent != NULL);
2054
2055         if (type == CD9660_TYPE_DOT)
2056                 na[0] = 0;
2057         else if (type == CD9660_TYPE_DOTDOT)
2058                 na[0] = 1;
2059         else
2060                 return 0;
2061
2062         na[1] = 0;
2063         if ((temp = cd9660_create_virtual_entry(na, parent, 0, 0)) == NULL)
2064                 return NULL;
2065
2066         temp->parent = parent;
2067         temp->type = type;
2068         temp->isoDirRecord->length[0] = 34;
2069         /* Dot record is always first */
2070         if (type == CD9660_TYPE_DOT) {
2071                 parent->dot_record = temp;
2072                 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child);
2073         /* DotDot should be second */
2074         } else if (type == CD9660_TYPE_DOTDOT) {
2075                 parent->dot_dot_record = temp;
2076                 /*
2077                  * If the first child is the dot record, insert
2078                  * this second.  Otherwise, insert it at the head.
2079                  */
2080                 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL ||
2081                     (first->type & CD9660_TYPE_DOT) == 0) {
2082                         TAILQ_INSERT_HEAD(&parent->cn_children, temp,
2083                             cn_next_child);
2084                 } else {
2085                         TAILQ_INSERT_AFTER(&parent->cn_children, first, temp,
2086                             cn_next_child);
2087                 }
2088         }
2089
2090         return temp;
2091 }
2092
2093 int
2094 cd9660_add_generic_bootimage(const char *bootimage)
2095 {
2096         struct stat stbuf;
2097
2098         assert(bootimage != NULL);
2099
2100         if (*bootimage == '\0') {
2101                 warnx("Error: Boot image must be a filename");
2102                 return 0;
2103         }
2104
2105         if ((diskStructure.generic_bootimage = strdup(bootimage)) == NULL) {
2106                 warn("%s: strdup", __func__);
2107                 return 0;
2108         }
2109
2110         /* Get information about the file */
2111         if (lstat(diskStructure.generic_bootimage, &stbuf) == -1)
2112                 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__,
2113                     diskStructure.generic_bootimage);
2114
2115         if (stbuf.st_size > 32768) {
2116                 warnx("Error: Boot image must be no greater than 32768 bytes");
2117                 return 0;
2118         }
2119
2120         if (diskStructure.verbose_level > 0) {
2121                 printf("Generic boot image image has size %lld\n",
2122                     (long long)stbuf.st_size);
2123         }
2124
2125         diskStructure.has_generic_bootimage = 1;
2126
2127         return 1;
2128 }