2 * Copyright (c) 2003-2007 Tim Kientzle
3 * Copyright (c) 2009 Andreas Henriksson <andreas@fatal.se>
4 * Copyright (c) 2009-2012 Michihiro NAKAJIMA
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include "archive_platform.h"
29 __FBSDID("$FreeBSD$");
34 /* #include <stdint.h> */ /* See archive_platform.h */
48 #include "archive_endian.h"
49 #include "archive_entry.h"
50 #include "archive_entry_locale.h"
51 #include "archive_private.h"
52 #include "archive_read_private.h"
53 #include "archive_string.h"
56 * An overview of ISO 9660 format:
58 * Each disk is laid out as follows:
59 * * 32k reserved for private use
60 * * Volume descriptor table. Each volume descriptor
61 * is 2k and specifies basic format information.
62 * The "Primary Volume Descriptor" (PVD) is defined by the
63 * standard and should always be present; other volume
64 * descriptors include various vendor-specific extensions.
65 * * Files and directories. Each file/dir is specified by
66 * an "extent" (starting sector and length in bytes).
67 * Dirs are just files with directory records packed one
68 * after another. The PVD contains a single dir entry
69 * specifying the location of the root directory. Everything
70 * else follows from there.
72 * This module works by first reading the volume descriptors, then
73 * building a list of directory entries, sorted by starting
74 * sector. At each step, I look for the earliest dir entry that
75 * hasn't yet been read, seek forward to that location and read
76 * that entry. If it's a dir, I slurp in the new dir entries and
77 * add them to the heap; if it's a regular file, I return the
78 * corresponding archive_entry and wait for the client to request
79 * the file body. This strategy allows us to read most compliant
80 * CDs with a single pass through the data, as required by libarchive.
82 #define LOGICAL_BLOCK_SIZE 2048
83 #define SYSTEM_AREA_BLOCK 16
85 /* Structure of on-disk primary volume descriptor. */
86 #define PVD_type_offset 0
87 #define PVD_type_size 1
88 #define PVD_id_offset (PVD_type_offset + PVD_type_size)
90 #define PVD_version_offset (PVD_id_offset + PVD_id_size)
91 #define PVD_version_size 1
92 #define PVD_reserved1_offset (PVD_version_offset + PVD_version_size)
93 #define PVD_reserved1_size 1
94 #define PVD_system_id_offset (PVD_reserved1_offset + PVD_reserved1_size)
95 #define PVD_system_id_size 32
96 #define PVD_volume_id_offset (PVD_system_id_offset + PVD_system_id_size)
97 #define PVD_volume_id_size 32
98 #define PVD_reserved2_offset (PVD_volume_id_offset + PVD_volume_id_size)
99 #define PVD_reserved2_size 8
100 #define PVD_volume_space_size_offset (PVD_reserved2_offset + PVD_reserved2_size)
101 #define PVD_volume_space_size_size 8
102 #define PVD_reserved3_offset (PVD_volume_space_size_offset + PVD_volume_space_size_size)
103 #define PVD_reserved3_size 32
104 #define PVD_volume_set_size_offset (PVD_reserved3_offset + PVD_reserved3_size)
105 #define PVD_volume_set_size_size 4
106 #define PVD_volume_sequence_number_offset (PVD_volume_set_size_offset + PVD_volume_set_size_size)
107 #define PVD_volume_sequence_number_size 4
108 #define PVD_logical_block_size_offset (PVD_volume_sequence_number_offset + PVD_volume_sequence_number_size)
109 #define PVD_logical_block_size_size 4
110 #define PVD_path_table_size_offset (PVD_logical_block_size_offset + PVD_logical_block_size_size)
111 #define PVD_path_table_size_size 8
112 #define PVD_type_1_path_table_offset (PVD_path_table_size_offset + PVD_path_table_size_size)
113 #define PVD_type_1_path_table_size 4
114 #define PVD_opt_type_1_path_table_offset (PVD_type_1_path_table_offset + PVD_type_1_path_table_size)
115 #define PVD_opt_type_1_path_table_size 4
116 #define PVD_type_m_path_table_offset (PVD_opt_type_1_path_table_offset + PVD_opt_type_1_path_table_size)
117 #define PVD_type_m_path_table_size 4
118 #define PVD_opt_type_m_path_table_offset (PVD_type_m_path_table_offset + PVD_type_m_path_table_size)
119 #define PVD_opt_type_m_path_table_size 4
120 #define PVD_root_directory_record_offset (PVD_opt_type_m_path_table_offset + PVD_opt_type_m_path_table_size)
121 #define PVD_root_directory_record_size 34
122 #define PVD_volume_set_id_offset (PVD_root_directory_record_offset + PVD_root_directory_record_size)
123 #define PVD_volume_set_id_size 128
124 #define PVD_publisher_id_offset (PVD_volume_set_id_offset + PVD_volume_set_id_size)
125 #define PVD_publisher_id_size 128
126 #define PVD_preparer_id_offset (PVD_publisher_id_offset + PVD_publisher_id_size)
127 #define PVD_preparer_id_size 128
128 #define PVD_application_id_offset (PVD_preparer_id_offset + PVD_preparer_id_size)
129 #define PVD_application_id_size 128
130 #define PVD_copyright_file_id_offset (PVD_application_id_offset + PVD_application_id_size)
131 #define PVD_copyright_file_id_size 37
132 #define PVD_abstract_file_id_offset (PVD_copyright_file_id_offset + PVD_copyright_file_id_size)
133 #define PVD_abstract_file_id_size 37
134 #define PVD_bibliographic_file_id_offset (PVD_abstract_file_id_offset + PVD_abstract_file_id_size)
135 #define PVD_bibliographic_file_id_size 37
136 #define PVD_creation_date_offset (PVD_bibliographic_file_id_offset + PVD_bibliographic_file_id_size)
137 #define PVD_creation_date_size 17
138 #define PVD_modification_date_offset (PVD_creation_date_offset + PVD_creation_date_size)
139 #define PVD_modification_date_size 17
140 #define PVD_expiration_date_offset (PVD_modification_date_offset + PVD_modification_date_size)
141 #define PVD_expiration_date_size 17
142 #define PVD_effective_date_offset (PVD_expiration_date_offset + PVD_expiration_date_size)
143 #define PVD_effective_date_size 17
144 #define PVD_file_structure_version_offset (PVD_effective_date_offset + PVD_effective_date_size)
145 #define PVD_file_structure_version_size 1
146 #define PVD_reserved4_offset (PVD_file_structure_version_offset + PVD_file_structure_version_size)
147 #define PVD_reserved4_size 1
148 #define PVD_application_data_offset (PVD_reserved4_offset + PVD_reserved4_size)
149 #define PVD_application_data_size 512
150 #define PVD_reserved5_offset (PVD_application_data_offset + PVD_application_data_size)
151 #define PVD_reserved5_size (2048 - PVD_reserved5_offset)
153 /* TODO: It would make future maintenance easier to just hardcode the
154 * above values. In particular, ECMA119 states the offsets as part of
155 * the standard. That would eliminate the need for the following check.*/
156 #if PVD_reserved5_offset != 1395
157 #error PVD offset and size definitions are wrong.
161 /* Structure of optional on-disk supplementary volume descriptor. */
162 #define SVD_type_offset 0
163 #define SVD_type_size 1
164 #define SVD_id_offset (SVD_type_offset + SVD_type_size)
165 #define SVD_id_size 5
166 #define SVD_version_offset (SVD_id_offset + SVD_id_size)
167 #define SVD_version_size 1
169 #define SVD_reserved1_offset 72
170 #define SVD_reserved1_size 8
171 #define SVD_volume_space_size_offset 80
172 #define SVD_volume_space_size_size 8
173 #define SVD_escape_sequences_offset (SVD_volume_space_size_offset + SVD_volume_space_size_size)
174 #define SVD_escape_sequences_size 32
176 #define SVD_logical_block_size_offset 128
177 #define SVD_logical_block_size_size 4
178 #define SVD_type_L_path_table_offset 140
179 #define SVD_type_M_path_table_offset 148
181 #define SVD_root_directory_record_offset 156
182 #define SVD_root_directory_record_size 34
183 #define SVD_file_structure_version_offset 881
184 #define SVD_reserved2_offset 882
185 #define SVD_reserved2_size 1
186 #define SVD_reserved3_offset 1395
187 #define SVD_reserved3_size 653
189 /* FIXME: validate correctness of last SVD entry offset. */
191 /* Structure of an on-disk directory record. */
192 /* Note: ISO9660 stores each multi-byte integer twice, once in
193 * each byte order. The sizes here are the size of just one
194 * of the two integers. (This is why the offset of a field isn't
195 * the same as the offset+size of the previous field.) */
196 #define DR_length_offset 0
197 #define DR_length_size 1
198 #define DR_ext_attr_length_offset 1
199 #define DR_ext_attr_length_size 1
200 #define DR_extent_offset 2
201 #define DR_extent_size 4
202 #define DR_size_offset 10
203 #define DR_size_size 4
204 #define DR_date_offset 18
205 #define DR_date_size 7
206 #define DR_flags_offset 25
207 #define DR_flags_size 1
208 #define DR_file_unit_size_offset 26
209 #define DR_file_unit_size_size 1
210 #define DR_interleave_offset 27
211 #define DR_interleave_size 1
212 #define DR_volume_sequence_number_offset 28
213 #define DR_volume_sequence_number_size 2
214 #define DR_name_len_offset 32
215 #define DR_name_len_size 1
216 #define DR_name_offset 33
219 static const unsigned char zisofs_magic[8] = {
220 0x37, 0xE4, 0x53, 0x96, 0xC9, 0xDB, 0xD6, 0x07
224 /* Set 1 if this file compressed by paged zlib */
226 int pz_log2_bs; /* Log2 of block size */
227 uint64_t pz_uncompressed_size;
230 unsigned char *uncompressed_buffer;
231 size_t uncompressed_buffer_size;
234 unsigned char header[16];
237 unsigned char *block_pointers;
238 size_t block_pointers_alloc;
239 size_t block_pointers_size;
240 size_t block_pointers_avail;
242 uint32_t block_avail;
249 /* Set 1 if this file compressed by paged zlib */
255 uint64_t offset;/* Offset on disk. */
256 uint64_t size; /* File size in bytes. */
257 struct content *next;
260 /* In-memory storage for a directory record. */
262 struct file_info *use_next;
263 struct file_info *parent;
264 struct file_info *next;
265 struct file_info *re_next;
267 uint64_t key; /* Heap Key. */
268 uint64_t offset; /* Offset on disk. */
269 uint64_t size; /* File size in bytes. */
270 uint32_t ce_offset; /* Offset of CE. */
271 uint32_t ce_size; /* Size of CE. */
272 char rr_moved; /* Flag to rr_moved. */
273 char rr_moved_has_re_only;
274 char re; /* Having RRIP "RE" extension. */
276 uint64_t cl_offset; /* Having RRIP "CL" extension. */
277 int birthtime_is_set;
278 time_t birthtime; /* File created time. */
279 time_t mtime; /* File last modified time. */
280 time_t atime; /* File last accessed time. */
281 time_t ctime; /* File attribute change time. */
282 uint64_t rdev; /* Device number. */
288 struct archive_string name; /* Pathname */
289 unsigned char *utf16be_name;
290 size_t utf16be_bytes;
291 char name_continues; /* Non-zero if name continues */
292 struct archive_string symlink;
293 char symlink_continues; /* Non-zero if link continues */
294 /* Set 1 if this file compressed by paged zlib(zisofs) */
296 int pz_log2_bs; /* Log2 of block size */
297 uint64_t pz_uncompressed_size;
298 /* Set 1 if this file is multi extent. */
301 struct content *first;
302 struct content **last;
305 struct file_info *first;
306 struct file_info **last;
311 struct file_info **files;
318 #define ISO9660_MAGIC 0x96609660
320 int opt_support_joliet;
321 int opt_support_rockridge;
323 struct archive_string pathname;
324 char seenRockridge; /* Set true if RR extensions are used. */
325 char seenSUSP; /* Set true if SUSP is beging used. */
328 unsigned char suspOffset;
329 struct file_info *rr_moved;
330 struct read_ce_queue {
332 uint64_t offset;/* Offset of CE on disk. */
333 struct file_info *file;
339 int64_t previous_number;
340 struct archive_string previous_pathname;
342 struct file_info *use_files;
343 struct heap_queue pending_files;
345 struct file_info *first;
346 struct file_info **last;
349 struct file_info *first;
350 struct file_info **last;
353 uint64_t current_position;
354 ssize_t logical_block_size;
355 uint64_t volume_size; /* Total size of volume in bytes. */
356 int32_t volume_block;/* Total size of volume in logical blocks. */
359 int location; /* Location of Extent. */
363 int64_t entry_sparse_offset;
364 int64_t entry_bytes_remaining;
365 size_t entry_bytes_unconsumed;
366 struct zisofs entry_zisofs;
367 struct content *entry_content;
368 struct archive_string_conv *sconv_utf16be;
370 * Buffers for a full pathname in UTF-16BE in Joliet extensions.
372 #define UTF16_NAME_MAX 1024
373 unsigned char *utf16be_path;
374 size_t utf16be_path_len;
375 unsigned char *utf16be_previous_path;
376 size_t utf16be_previous_path_len;
377 /* Null buffer used in bidder to improve its performance. */
378 unsigned char null[2048];
381 static int archive_read_format_iso9660_bid(struct archive_read *, int);
382 static int archive_read_format_iso9660_options(struct archive_read *,
383 const char *, const char *);
384 static int archive_read_format_iso9660_cleanup(struct archive_read *);
385 static int archive_read_format_iso9660_read_data(struct archive_read *,
386 const void **, size_t *, int64_t *);
387 static int archive_read_format_iso9660_read_data_skip(struct archive_read *);
388 static int archive_read_format_iso9660_read_header(struct archive_read *,
389 struct archive_entry *);
390 static const char *build_pathname(struct archive_string *, struct file_info *, int);
391 static int build_pathname_utf16be(unsigned char *, size_t, size_t *,
394 static void dump_isodirrec(FILE *, const unsigned char *isodirrec);
396 static time_t time_from_tm(struct tm *);
397 static time_t isodate17(const unsigned char *);
398 static time_t isodate7(const unsigned char *);
399 static int isBootRecord(struct iso9660 *, const unsigned char *);
400 static int isVolumePartition(struct iso9660 *, const unsigned char *);
401 static int isVDSetTerminator(struct iso9660 *, const unsigned char *);
402 static int isJolietSVD(struct iso9660 *, const unsigned char *);
403 static int isSVD(struct iso9660 *, const unsigned char *);
404 static int isEVD(struct iso9660 *, const unsigned char *);
405 static int isPVD(struct iso9660 *, const unsigned char *);
406 static int next_cache_entry(struct archive_read *, struct iso9660 *,
407 struct file_info **);
408 static int next_entry_seek(struct archive_read *, struct iso9660 *,
409 struct file_info **);
410 static struct file_info *
411 parse_file_info(struct archive_read *a,
412 struct file_info *parent, const unsigned char *isodirrec);
413 static int parse_rockridge(struct archive_read *a,
414 struct file_info *file, const unsigned char *start,
415 const unsigned char *end);
416 static int register_CE(struct archive_read *a, int32_t location,
417 struct file_info *file);
418 static int read_CE(struct archive_read *a, struct iso9660 *iso9660);
419 static void parse_rockridge_NM1(struct file_info *,
420 const unsigned char *, int);
421 static void parse_rockridge_SL1(struct file_info *,
422 const unsigned char *, int);
423 static void parse_rockridge_TF1(struct file_info *,
424 const unsigned char *, int);
425 static void parse_rockridge_ZF1(struct file_info *,
426 const unsigned char *, int);
427 static void register_file(struct iso9660 *, struct file_info *);
428 static void release_files(struct iso9660 *);
429 static unsigned toi(const void *p, int n);
430 static inline void re_add_entry(struct iso9660 *, struct file_info *);
431 static inline struct file_info * re_get_entry(struct iso9660 *);
432 static inline int rede_add_entry(struct file_info *);
433 static inline struct file_info * rede_get_entry(struct file_info *);
434 static inline void cache_add_entry(struct iso9660 *iso9660,
435 struct file_info *file);
436 static inline struct file_info *cache_get_entry(struct iso9660 *iso9660);
437 static int heap_add_entry(struct archive_read *a, struct heap_queue *heap,
438 struct file_info *file, uint64_t key);
439 static struct file_info *heap_get_entry(struct heap_queue *heap);
441 #define add_entry(arch, iso9660, file) \
442 heap_add_entry(arch, &((iso9660)->pending_files), file, file->offset)
443 #define next_entry(iso9660) \
444 heap_get_entry(&((iso9660)->pending_files))
447 archive_read_support_format_iso9660(struct archive *_a)
449 struct archive_read *a = (struct archive_read *)_a;
450 struct iso9660 *iso9660;
453 archive_check_magic(_a, ARCHIVE_READ_MAGIC,
454 ARCHIVE_STATE_NEW, "archive_read_support_format_iso9660");
456 iso9660 = (struct iso9660 *)calloc(1, sizeof(*iso9660));
457 if (iso9660 == NULL) {
458 archive_set_error(&a->archive, ENOMEM,
459 "Can't allocate iso9660 data");
460 return (ARCHIVE_FATAL);
462 iso9660->magic = ISO9660_MAGIC;
463 iso9660->cache_files.first = NULL;
464 iso9660->cache_files.last = &(iso9660->cache_files.first);
465 iso9660->re_files.first = NULL;
466 iso9660->re_files.last = &(iso9660->re_files.first);
467 /* Enable to support Joliet extensions by default. */
468 iso9660->opt_support_joliet = 1;
469 /* Enable to support Rock Ridge extensions by default. */
470 iso9660->opt_support_rockridge = 1;
472 r = __archive_read_register_format(a,
475 archive_read_format_iso9660_bid,
476 archive_read_format_iso9660_options,
477 archive_read_format_iso9660_read_header,
478 archive_read_format_iso9660_read_data,
479 archive_read_format_iso9660_read_data_skip,
481 archive_read_format_iso9660_cleanup,
485 if (r != ARCHIVE_OK) {
494 archive_read_format_iso9660_bid(struct archive_read *a, int best_bid)
496 struct iso9660 *iso9660;
498 const unsigned char *p;
501 /* If there's already a better bid than we can ever
502 make, don't bother testing. */
506 iso9660 = (struct iso9660 *)(a->format->data);
509 * Skip the first 32k (reserved area) and get the first
510 * 8 sectors of the volume descriptor table. Of course,
511 * if the I/O layer gives us more, we'll take it.
513 #define RESERVED_AREA (SYSTEM_AREA_BLOCK * LOGICAL_BLOCK_SIZE)
514 p = __archive_read_ahead(a,
515 RESERVED_AREA + 8 * LOGICAL_BLOCK_SIZE,
520 /* Skip the reserved area. */
521 bytes_read -= RESERVED_AREA;
524 /* Check each volume descriptor. */
526 for (; bytes_read > LOGICAL_BLOCK_SIZE;
527 bytes_read -= LOGICAL_BLOCK_SIZE, p += LOGICAL_BLOCK_SIZE) {
528 /* Do not handle undefined Volume Descriptor Type. */
529 if (p[0] >= 4 && p[0] <= 254)
531 /* Standard Identifier must be "CD001" */
532 if (memcmp(p + 1, "CD001", 5) != 0)
534 if (isPVD(iso9660, p))
536 if (!iso9660->joliet.location) {
537 if (isJolietSVD(iso9660, p))
540 if (isBootRecord(iso9660, p))
542 if (isEVD(iso9660, p))
544 if (isSVD(iso9660, p))
546 if (isVolumePartition(iso9660, p))
548 if (isVDSetTerminator(iso9660, p)) {
555 * ISO 9660 format must have Primary Volume Descriptor and
556 * Volume Descriptor Set Terminator.
558 if (seenTerminator && iso9660->primary.location > 16)
561 /* We didn't find a valid PVD; return a bid of zero. */
566 archive_read_format_iso9660_options(struct archive_read *a,
567 const char *key, const char *val)
569 struct iso9660 *iso9660;
571 iso9660 = (struct iso9660 *)(a->format->data);
573 if (strcmp(key, "joliet") == 0) {
574 if (val == NULL || strcmp(val, "off") == 0 ||
575 strcmp(val, "ignore") == 0 ||
576 strcmp(val, "disable") == 0 ||
577 strcmp(val, "0") == 0)
578 iso9660->opt_support_joliet = 0;
580 iso9660->opt_support_joliet = 1;
583 if (strcmp(key, "rockridge") == 0 ||
584 strcmp(key, "Rockridge") == 0) {
585 iso9660->opt_support_rockridge = val != NULL;
589 /* Note: The "warn" return is just to inform the options
590 * supervisor that we didn't handle it. It will generate
591 * a suitable error if no one used this option. */
592 return (ARCHIVE_WARN);
596 isNull(struct iso9660 *iso9660, const unsigned char *h, unsigned offset,
600 while (bytes >= sizeof(iso9660->null)) {
601 if (!memcmp(iso9660->null, h + offset, sizeof(iso9660->null)))
603 offset += sizeof(iso9660->null);
604 bytes -= sizeof(iso9660->null);
607 return memcmp(iso9660->null, h + offset, bytes) == 0;
613 isBootRecord(struct iso9660 *iso9660, const unsigned char *h)
615 (void)iso9660; /* UNUSED */
617 /* Type of the Volume Descriptor Boot Record must be 0. */
621 /* Volume Descriptor Version must be 1. */
629 isVolumePartition(struct iso9660 *iso9660, const unsigned char *h)
633 /* Type of the Volume Partition Descriptor must be 3. */
637 /* Volume Descriptor Version must be 1. */
644 location = archive_le32dec(h + 72);
645 if (location <= SYSTEM_AREA_BLOCK ||
646 location >= iso9660->volume_block)
648 if ((uint32_t)location != archive_be32dec(h + 76))
655 isVDSetTerminator(struct iso9660 *iso9660, const unsigned char *h)
657 (void)iso9660; /* UNUSED */
659 /* Type of the Volume Descriptor Set Terminator must be 255. */
663 /* Volume Descriptor Version must be 1. */
667 /* Reserved field must be 0. */
668 if (!isNull(iso9660, h, 7, 2048-7))
675 isJolietSVD(struct iso9660 *iso9660, const unsigned char *h)
677 const unsigned char *p;
678 ssize_t logical_block_size;
679 int32_t volume_block;
681 /* Check if current sector is a kind of Supplementary Volume
683 if (!isSVD(iso9660, h))
686 /* FIXME: do more validations according to joliet spec. */
688 /* check if this SVD contains joliet extension! */
689 p = h + SVD_escape_sequences_offset;
690 /* N.B. Joliet spec says p[1] == '\\', but.... */
691 if (p[0] == '%' && p[1] == '/') {
696 else if (p[2] == 'C')
698 else if (p[2] == 'E')
700 else /* not joliet */
703 iso9660->seenJoliet = level;
705 } else /* not joliet */
709 archive_le16dec(h + SVD_logical_block_size_offset);
710 volume_block = archive_le32dec(h + SVD_volume_space_size_offset);
712 iso9660->logical_block_size = logical_block_size;
713 iso9660->volume_block = volume_block;
714 iso9660->volume_size = logical_block_size * (uint64_t)volume_block;
715 /* Read Root Directory Record in Volume Descriptor. */
716 p = h + SVD_root_directory_record_offset;
717 iso9660->joliet.location = archive_le32dec(p + DR_extent_offset);
718 iso9660->joliet.size = archive_le32dec(p + DR_size_offset);
724 isSVD(struct iso9660 *iso9660, const unsigned char *h)
726 const unsigned char *p;
727 ssize_t logical_block_size;
728 int32_t volume_block;
731 (void)iso9660; /* UNUSED */
733 /* Type 2 means it's a SVD. */
734 if (h[SVD_type_offset] != 2)
737 /* Reserved field must be 0. */
738 if (!isNull(iso9660, h, SVD_reserved1_offset, SVD_reserved1_size))
740 if (!isNull(iso9660, h, SVD_reserved2_offset, SVD_reserved2_size))
742 if (!isNull(iso9660, h, SVD_reserved3_offset, SVD_reserved3_size))
745 /* File structure version must be 1 for ISO9660/ECMA119. */
746 if (h[SVD_file_structure_version_offset] != 1)
750 archive_le16dec(h + SVD_logical_block_size_offset);
751 if (logical_block_size <= 0)
754 volume_block = archive_le32dec(h + SVD_volume_space_size_offset);
755 if (volume_block <= SYSTEM_AREA_BLOCK+4)
758 /* Location of Occurrence of Type L Path Table must be
759 * available location,
760 * >= SYSTEM_AREA_BLOCK(16) + 2 and < Volume Space Size. */
761 location = archive_le32dec(h+SVD_type_L_path_table_offset);
762 if (location < SYSTEM_AREA_BLOCK+2 || location >= volume_block)
765 /* The Type M Path Table must be at a valid location (WinISO
766 * and probably other programs omit this, so we allow zero)
768 * >= SYSTEM_AREA_BLOCK(16) + 2 and < Volume Space Size. */
769 location = archive_be32dec(h+SVD_type_M_path_table_offset);
770 if ((location > 0 && location < SYSTEM_AREA_BLOCK+2)
771 || location >= volume_block)
774 /* Read Root Directory Record in Volume Descriptor. */
775 p = h + SVD_root_directory_record_offset;
776 if (p[DR_length_offset] != 34)
783 isEVD(struct iso9660 *iso9660, const unsigned char *h)
785 const unsigned char *p;
786 ssize_t logical_block_size;
787 int32_t volume_block;
790 (void)iso9660; /* UNUSED */
792 /* Type of the Enhanced Volume Descriptor must be 2. */
793 if (h[PVD_type_offset] != 2)
796 /* EVD version must be 2. */
797 if (h[PVD_version_offset] != 2)
800 /* Reserved field must be 0. */
801 if (h[PVD_reserved1_offset] != 0)
804 /* Reserved field must be 0. */
805 if (!isNull(iso9660, h, PVD_reserved2_offset, PVD_reserved2_size))
808 /* Reserved field must be 0. */
809 if (!isNull(iso9660, h, PVD_reserved3_offset, PVD_reserved3_size))
812 /* Logical block size must be > 0. */
813 /* I've looked at Ecma 119 and can't find any stronger
814 * restriction on this field. */
816 archive_le16dec(h + PVD_logical_block_size_offset);
817 if (logical_block_size <= 0)
821 archive_le32dec(h + PVD_volume_space_size_offset);
822 if (volume_block <= SYSTEM_AREA_BLOCK+4)
825 /* File structure version must be 2 for ISO9660:1999. */
826 if (h[PVD_file_structure_version_offset] != 2)
829 /* Location of Occurrence of Type L Path Table must be
830 * available location,
831 * >= SYSTEM_AREA_BLOCK(16) + 2 and < Volume Space Size. */
832 location = archive_le32dec(h+PVD_type_1_path_table_offset);
833 if (location < SYSTEM_AREA_BLOCK+2 || location >= volume_block)
836 /* Location of Occurrence of Type M Path Table must be
837 * available location,
838 * >= SYSTEM_AREA_BLOCK(16) + 2 and < Volume Space Size. */
839 location = archive_be32dec(h+PVD_type_m_path_table_offset);
840 if ((location > 0 && location < SYSTEM_AREA_BLOCK+2)
841 || location >= volume_block)
844 /* Reserved field must be 0. */
845 if (!isNull(iso9660, h, PVD_reserved4_offset, PVD_reserved4_size))
848 /* Reserved field must be 0. */
849 if (!isNull(iso9660, h, PVD_reserved5_offset, PVD_reserved5_size))
852 /* Read Root Directory Record in Volume Descriptor. */
853 p = h + PVD_root_directory_record_offset;
854 if (p[DR_length_offset] != 34)
861 isPVD(struct iso9660 *iso9660, const unsigned char *h)
863 const unsigned char *p;
864 ssize_t logical_block_size;
865 int32_t volume_block;
869 /* Type of the Primary Volume Descriptor must be 1. */
870 if (h[PVD_type_offset] != 1)
873 /* PVD version must be 1. */
874 if (h[PVD_version_offset] != 1)
877 /* Reserved field must be 0. */
878 if (h[PVD_reserved1_offset] != 0)
881 /* Reserved field must be 0. */
882 if (!isNull(iso9660, h, PVD_reserved2_offset, PVD_reserved2_size))
885 /* Reserved field must be 0. */
886 if (!isNull(iso9660, h, PVD_reserved3_offset, PVD_reserved3_size))
889 /* Logical block size must be > 0. */
890 /* I've looked at Ecma 119 and can't find any stronger
891 * restriction on this field. */
893 archive_le16dec(h + PVD_logical_block_size_offset);
894 if (logical_block_size <= 0)
897 volume_block = archive_le32dec(h + PVD_volume_space_size_offset);
898 if (volume_block <= SYSTEM_AREA_BLOCK+4)
901 /* File structure version must be 1 for ISO9660/ECMA119. */
902 if (h[PVD_file_structure_version_offset] != 1)
905 /* Location of Occurrence of Type L Path Table must be
906 * available location,
907 * > SYSTEM_AREA_BLOCK(16) + 2 and < Volume Space Size. */
908 location = archive_le32dec(h+PVD_type_1_path_table_offset);
909 if (location < SYSTEM_AREA_BLOCK+2 || location >= volume_block)
912 /* The Type M Path Table must also be at a valid location
913 * (although ECMA 119 requires a Type M Path Table, WinISO and
914 * probably other programs omit it, so we permit a zero here)
916 * >= SYSTEM_AREA_BLOCK(16) + 2 and < Volume Space Size. */
917 location = archive_be32dec(h+PVD_type_m_path_table_offset);
918 if ((location > 0 && location < SYSTEM_AREA_BLOCK+2)
919 || location >= volume_block)
922 /* Reserved field must be 0. */
923 /* But accept NetBSD/FreeBSD "makefs" images with 0x20 here. */
924 for (i = 0; i < PVD_reserved4_size; ++i)
925 if (h[PVD_reserved4_offset + i] != 0
926 && h[PVD_reserved4_offset + i] != 0x20)
929 /* Reserved field must be 0. */
930 if (!isNull(iso9660, h, PVD_reserved5_offset, PVD_reserved5_size))
933 /* XXX TODO: Check other values for sanity; reject more
934 * malformed PVDs. XXX */
936 /* Read Root Directory Record in Volume Descriptor. */
937 p = h + PVD_root_directory_record_offset;
938 if (p[DR_length_offset] != 34)
941 if (!iso9660->primary.location) {
942 iso9660->logical_block_size = logical_block_size;
943 iso9660->volume_block = volume_block;
944 iso9660->volume_size =
945 logical_block_size * (uint64_t)volume_block;
946 iso9660->primary.location =
947 archive_le32dec(p + DR_extent_offset);
948 iso9660->primary.size = archive_le32dec(p + DR_size_offset);
955 read_children(struct archive_read *a, struct file_info *parent)
957 struct iso9660 *iso9660;
958 const unsigned char *b, *p;
959 struct file_info *multi;
960 size_t step, skip_size;
962 iso9660 = (struct iso9660 *)(a->format->data);
963 /* flush any remaining bytes from the last round to ensure
964 * we're positioned */
965 if (iso9660->entry_bytes_unconsumed) {
966 __archive_read_consume(a, iso9660->entry_bytes_unconsumed);
967 iso9660->entry_bytes_unconsumed = 0;
969 if (iso9660->current_position > parent->offset) {
970 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
971 "Ignoring out-of-order directory (%s) %jd > %jd",
973 (intmax_t)iso9660->current_position,
974 (intmax_t)parent->offset);
975 return (ARCHIVE_WARN);
977 if (parent->offset + parent->size > iso9660->volume_size) {
978 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
979 "Directory is beyond end-of-media: %s",
981 return (ARCHIVE_WARN);
983 if (iso9660->current_position < parent->offset) {
986 skipsize = parent->offset - iso9660->current_position;
987 skipsize = __archive_read_consume(a, skipsize);
989 return ((int)skipsize);
990 iso9660->current_position = parent->offset;
993 step = (size_t)(((parent->size + iso9660->logical_block_size -1) /
994 iso9660->logical_block_size) * iso9660->logical_block_size);
995 b = __archive_read_ahead(a, step, NULL);
997 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
998 "Failed to read full block when scanning "
999 "ISO9660 directory list");
1000 return (ARCHIVE_FATAL);
1002 iso9660->current_position += step;
1007 b += iso9660->logical_block_size;
1008 step -= iso9660->logical_block_size;
1009 for (; *p != 0 && p < b && p + *p <= b; p += *p) {
1010 struct file_info *child;
1012 /* N.B.: these special directory identifiers
1013 * are 8 bit "values" even on a
1014 * Joliet CD with UCS-2 (16bit) encoding.
1017 /* Skip '.' entry. */
1018 if (*(p + DR_name_len_offset) == 1
1019 && *(p + DR_name_offset) == '\0')
1021 /* Skip '..' entry. */
1022 if (*(p + DR_name_len_offset) == 1
1023 && *(p + DR_name_offset) == '\001')
1025 child = parse_file_info(a, parent, p);
1026 if (child == NULL) {
1027 __archive_read_consume(a, skip_size);
1028 return (ARCHIVE_FATAL);
1030 if (child->cl_offset == 0 &&
1031 (child->multi_extent || multi != NULL)) {
1032 struct content *con;
1034 if (multi == NULL) {
1036 multi->contents.first = NULL;
1037 multi->contents.last =
1038 &(multi->contents.first);
1040 con = malloc(sizeof(struct content));
1043 &a->archive, ENOMEM,
1044 "No memory for multi extent");
1045 __archive_read_consume(a, skip_size);
1046 return (ARCHIVE_FATAL);
1048 con->offset = child->offset;
1049 con->size = child->size;
1051 *multi->contents.last = con;
1052 multi->contents.last = &(con->next);
1053 if (multi == child) {
1054 if (add_entry(a, iso9660, child)
1056 return (ARCHIVE_FATAL);
1058 multi->size += child->size;
1059 if (!child->multi_extent)
1063 if (add_entry(a, iso9660, child) != ARCHIVE_OK)
1064 return (ARCHIVE_FATAL);
1068 __archive_read_consume(a, skip_size);
1070 /* Read data which recorded by RRIP "CE" extension. */
1071 if (read_CE(a, iso9660) != ARCHIVE_OK)
1072 return (ARCHIVE_FATAL);
1074 return (ARCHIVE_OK);
1078 choose_volume(struct archive_read *a, struct iso9660 *iso9660)
1080 struct file_info *file;
1086 vd = &(iso9660->primary);
1087 if (!iso9660->opt_support_joliet)
1088 iso9660->seenJoliet = 0;
1089 if (iso9660->seenJoliet &&
1090 vd->location > iso9660->joliet.location)
1091 /* This condition is unlikely; by way of caution. */
1092 vd = &(iso9660->joliet);
1094 skipsize = LOGICAL_BLOCK_SIZE * (int64_t)vd->location;
1095 skipsize = __archive_read_consume(a, skipsize);
1097 return ((int)skipsize);
1098 iso9660->current_position = skipsize;
1100 block = __archive_read_ahead(a, vd->size, NULL);
1101 if (block == NULL) {
1102 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1103 "Failed to read full block when scanning "
1104 "ISO9660 directory list");
1105 return (ARCHIVE_FATAL);
1109 * While reading Root Directory, flag seenJoliet must be zero to
1110 * avoid converting special name 0x00(Current Directory) and
1111 * next byte to UCS2.
1113 seenJoliet = iso9660->seenJoliet;/* Save flag. */
1114 iso9660->seenJoliet = 0;
1115 file = parse_file_info(a, NULL, block);
1117 return (ARCHIVE_FATAL);
1118 iso9660->seenJoliet = seenJoliet;
1121 * If the iso image has both RockRidge and Joliet, we preferentially
1122 * use RockRidge Extensions rather than Joliet ones.
1124 if (vd == &(iso9660->primary) && iso9660->seenRockridge
1125 && iso9660->seenJoliet)
1126 iso9660->seenJoliet = 0;
1128 if (vd == &(iso9660->primary) && !iso9660->seenRockridge
1129 && iso9660->seenJoliet) {
1130 /* Switch reading data from primary to joliet. */
1131 vd = &(iso9660->joliet);
1132 skipsize = LOGICAL_BLOCK_SIZE * (int64_t)vd->location;
1133 skipsize -= iso9660->current_position;
1134 skipsize = __archive_read_consume(a, skipsize);
1136 return ((int)skipsize);
1137 iso9660->current_position += skipsize;
1139 block = __archive_read_ahead(a, vd->size, NULL);
1140 if (block == NULL) {
1141 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1142 "Failed to read full block when scanning "
1143 "ISO9660 directory list");
1144 return (ARCHIVE_FATAL);
1146 iso9660->seenJoliet = 0;
1147 file = parse_file_info(a, NULL, block);
1149 return (ARCHIVE_FATAL);
1150 iso9660->seenJoliet = seenJoliet;
1153 /* Store the root directory in the pending list. */
1154 if (add_entry(a, iso9660, file) != ARCHIVE_OK)
1155 return (ARCHIVE_FATAL);
1156 if (iso9660->seenRockridge) {
1157 a->archive.archive_format = ARCHIVE_FORMAT_ISO9660_ROCKRIDGE;
1158 a->archive.archive_format_name =
1159 "ISO9660 with Rockridge extensions";
1162 return (ARCHIVE_OK);
1166 archive_read_format_iso9660_read_header(struct archive_read *a,
1167 struct archive_entry *entry)
1169 struct iso9660 *iso9660;
1170 struct file_info *file;
1171 int r, rd_r = ARCHIVE_OK;
1173 iso9660 = (struct iso9660 *)(a->format->data);
1175 if (!a->archive.archive_format) {
1176 a->archive.archive_format = ARCHIVE_FORMAT_ISO9660;
1177 a->archive.archive_format_name = "ISO9660";
1180 if (iso9660->current_position == 0) {
1181 r = choose_volume(a, iso9660);
1182 if (r != ARCHIVE_OK)
1186 file = NULL;/* Eliminate a warning. */
1187 /* Get the next entry that appears after the current offset. */
1188 r = next_entry_seek(a, iso9660, &file);
1189 if (r != ARCHIVE_OK)
1192 if (iso9660->seenJoliet) {
1194 * Convert UTF-16BE of a filename to local locale MBS
1195 * and store the result into a filename field.
1197 if (iso9660->sconv_utf16be == NULL) {
1198 iso9660->sconv_utf16be =
1199 archive_string_conversion_from_charset(
1200 &(a->archive), "UTF-16BE", 1);
1201 if (iso9660->sconv_utf16be == NULL)
1202 /* Couldn't allocate memory */
1203 return (ARCHIVE_FATAL);
1205 if (iso9660->utf16be_path == NULL) {
1206 iso9660->utf16be_path = malloc(UTF16_NAME_MAX);
1207 if (iso9660->utf16be_path == NULL) {
1208 archive_set_error(&a->archive, ENOMEM,
1210 return (ARCHIVE_FATAL);
1213 if (iso9660->utf16be_previous_path == NULL) {
1214 iso9660->utf16be_previous_path = malloc(UTF16_NAME_MAX);
1215 if (iso9660->utf16be_previous_path == NULL) {
1216 archive_set_error(&a->archive, ENOMEM,
1218 return (ARCHIVE_FATAL);
1222 iso9660->utf16be_path_len = 0;
1223 if (build_pathname_utf16be(iso9660->utf16be_path,
1224 UTF16_NAME_MAX, &(iso9660->utf16be_path_len), file) != 0) {
1225 archive_set_error(&a->archive,
1226 ARCHIVE_ERRNO_FILE_FORMAT,
1227 "Pathname is too long");
1228 return (ARCHIVE_FATAL);
1231 r = archive_entry_copy_pathname_l(entry,
1232 (const char *)iso9660->utf16be_path,
1233 iso9660->utf16be_path_len,
1234 iso9660->sconv_utf16be);
1236 if (errno == ENOMEM) {
1237 archive_set_error(&a->archive, ENOMEM,
1238 "No memory for Pathname");
1239 return (ARCHIVE_FATAL);
1241 archive_set_error(&a->archive,
1242 ARCHIVE_ERRNO_FILE_FORMAT,
1243 "Pathname cannot be converted "
1244 "from %s to current locale.",
1245 archive_string_conversion_charset_name(
1246 iso9660->sconv_utf16be));
1248 rd_r = ARCHIVE_WARN;
1251 const char *path = build_pathname(&iso9660->pathname, file, 0);
1253 archive_set_error(&a->archive,
1254 ARCHIVE_ERRNO_FILE_FORMAT,
1255 "Pathname is too long");
1256 return (ARCHIVE_FATAL);
1258 archive_string_empty(&iso9660->pathname);
1259 archive_entry_set_pathname(entry, path);
1263 iso9660->entry_bytes_remaining = file->size;
1264 /* Offset for sparse-file-aware clients. */
1265 iso9660->entry_sparse_offset = 0;
1267 if (file->offset + file->size > iso9660->volume_size) {
1268 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1269 "File is beyond end-of-media: %s",
1270 archive_entry_pathname(entry));
1271 iso9660->entry_bytes_remaining = 0;
1272 return (ARCHIVE_WARN);
1275 /* Set up the entry structure with information about this entry. */
1276 archive_entry_set_mode(entry, file->mode);
1277 archive_entry_set_uid(entry, file->uid);
1278 archive_entry_set_gid(entry, file->gid);
1279 archive_entry_set_nlink(entry, file->nlinks);
1280 if (file->birthtime_is_set)
1281 archive_entry_set_birthtime(entry, file->birthtime, 0);
1283 archive_entry_unset_birthtime(entry);
1284 archive_entry_set_mtime(entry, file->mtime, 0);
1285 archive_entry_set_ctime(entry, file->ctime, 0);
1286 archive_entry_set_atime(entry, file->atime, 0);
1287 /* N.B.: Rock Ridge supports 64-bit device numbers. */
1288 archive_entry_set_rdev(entry, (dev_t)file->rdev);
1289 archive_entry_set_size(entry, iso9660->entry_bytes_remaining);
1290 if (file->symlink.s != NULL)
1291 archive_entry_copy_symlink(entry, file->symlink.s);
1293 /* Note: If the input isn't seekable, we can't rewind to
1294 * return the same body again, so if the next entry refers to
1295 * the same data, we have to return it as a hardlink to the
1296 * original entry. */
1297 if (file->number != -1 &&
1298 file->number == iso9660->previous_number) {
1299 if (iso9660->seenJoliet) {
1300 r = archive_entry_copy_hardlink_l(entry,
1301 (const char *)iso9660->utf16be_previous_path,
1302 iso9660->utf16be_previous_path_len,
1303 iso9660->sconv_utf16be);
1305 if (errno == ENOMEM) {
1306 archive_set_error(&a->archive, ENOMEM,
1307 "No memory for Linkname");
1308 return (ARCHIVE_FATAL);
1310 archive_set_error(&a->archive,
1311 ARCHIVE_ERRNO_FILE_FORMAT,
1312 "Linkname cannot be converted "
1313 "from %s to current locale.",
1314 archive_string_conversion_charset_name(
1315 iso9660->sconv_utf16be));
1316 rd_r = ARCHIVE_WARN;
1319 archive_entry_set_hardlink(entry,
1320 iso9660->previous_pathname.s);
1321 archive_entry_unset_size(entry);
1322 iso9660->entry_bytes_remaining = 0;
1326 if ((file->mode & AE_IFMT) != AE_IFDIR &&
1327 file->offset < iso9660->current_position) {
1330 r64 = __archive_read_seek(a, file->offset, SEEK_SET);
1331 if (r64 != (int64_t)file->offset) {
1332 /* We can't seek backwards to extract it, so issue
1333 * a warning. Note that this can only happen if
1334 * this entry was added to the heap after we passed
1335 * this offset, that is, only if the directory
1336 * mentioning this entry is later than the body of
1337 * the entry. Such layouts are very unusual; most
1338 * ISO9660 writers lay out and record all directory
1339 * information first, then store all file bodies. */
1340 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1341 "Ignoring out-of-order file @%jx (%s) %jd < %jd",
1342 (intmax_t)file->number,
1343 iso9660->pathname.s,
1344 (intmax_t)file->offset,
1345 (intmax_t)iso9660->current_position);
1346 iso9660->entry_bytes_remaining = 0;
1347 return (ARCHIVE_WARN);
1349 iso9660->current_position = (uint64_t)r64;
1352 /* Initialize zisofs variables. */
1353 iso9660->entry_zisofs.pz = file->pz;
1356 struct zisofs *zisofs;
1358 zisofs = &iso9660->entry_zisofs;
1359 zisofs->initialized = 0;
1360 zisofs->pz_log2_bs = file->pz_log2_bs;
1361 zisofs->pz_uncompressed_size = file->pz_uncompressed_size;
1362 zisofs->pz_offset = 0;
1363 zisofs->header_avail = 0;
1364 zisofs->header_passed = 0;
1365 zisofs->block_pointers_avail = 0;
1367 archive_entry_set_size(entry, file->pz_uncompressed_size);
1370 iso9660->previous_number = file->number;
1371 if (iso9660->seenJoliet) {
1372 memcpy(iso9660->utf16be_previous_path, iso9660->utf16be_path,
1373 iso9660->utf16be_path_len);
1374 iso9660->utf16be_previous_path_len = iso9660->utf16be_path_len;
1377 &iso9660->previous_pathname, iso9660->pathname.s);
1379 /* Reset entry_bytes_remaining if the file is multi extent. */
1380 iso9660->entry_content = file->contents.first;
1381 if (iso9660->entry_content != NULL)
1382 iso9660->entry_bytes_remaining = iso9660->entry_content->size;
1384 if (archive_entry_filetype(entry) == AE_IFDIR) {
1385 /* Overwrite nlinks by proper link number which is
1386 * calculated from number of sub directories. */
1387 archive_entry_set_nlink(entry, 2 + file->subdirs);
1388 /* Directory data has been read completely. */
1389 iso9660->entry_bytes_remaining = 0;
1392 if (rd_r != ARCHIVE_OK)
1394 return (ARCHIVE_OK);
1398 archive_read_format_iso9660_read_data_skip(struct archive_read *a)
1400 /* Because read_next_header always does an explicit skip
1401 * to the next entry, we don't need to do anything here. */
1402 (void)a; /* UNUSED */
1403 return (ARCHIVE_OK);
1409 zisofs_read_data(struct archive_read *a,
1410 const void **buff, size_t *size, int64_t *offset)
1412 struct iso9660 *iso9660;
1413 struct zisofs *zisofs;
1414 const unsigned char *p;
1417 size_t uncompressed_size;
1420 iso9660 = (struct iso9660 *)(a->format->data);
1421 zisofs = &iso9660->entry_zisofs;
1423 p = __archive_read_ahead(a, 1, &bytes_read);
1424 if (bytes_read <= 0) {
1425 archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
1426 "Truncated zisofs file body");
1427 return (ARCHIVE_FATAL);
1429 if (bytes_read > iso9660->entry_bytes_remaining)
1430 bytes_read = (ssize_t)iso9660->entry_bytes_remaining;
1432 uncompressed_size = 0;
1434 if (!zisofs->initialized) {
1437 /* Allocate block pointers buffer. */
1438 ceil = (size_t)((zisofs->pz_uncompressed_size +
1439 (((int64_t)1) << zisofs->pz_log2_bs) - 1)
1440 >> zisofs->pz_log2_bs);
1441 xsize = (ceil + 1) * 4;
1442 if (zisofs->block_pointers_alloc < xsize) {
1445 if (zisofs->block_pointers != NULL)
1446 free(zisofs->block_pointers);
1447 alloc = ((xsize >> 10) + 1) << 10;
1448 zisofs->block_pointers = malloc(alloc);
1449 if (zisofs->block_pointers == NULL) {
1450 archive_set_error(&a->archive, ENOMEM,
1451 "No memory for zisofs decompression");
1452 return (ARCHIVE_FATAL);
1454 zisofs->block_pointers_alloc = alloc;
1456 zisofs->block_pointers_size = xsize;
1458 /* Allocate uncompressed data buffer. */
1459 xsize = (size_t)1UL << zisofs->pz_log2_bs;
1460 if (zisofs->uncompressed_buffer_size < xsize) {
1461 if (zisofs->uncompressed_buffer != NULL)
1462 free(zisofs->uncompressed_buffer);
1463 zisofs->uncompressed_buffer = malloc(xsize);
1464 if (zisofs->uncompressed_buffer == NULL) {
1465 archive_set_error(&a->archive, ENOMEM,
1466 "No memory for zisofs decompression");
1467 return (ARCHIVE_FATAL);
1470 zisofs->uncompressed_buffer_size = xsize;
1473 * Read the file header, and check the magic code of zisofs.
1475 if (zisofs->header_avail < sizeof(zisofs->header)) {
1476 xsize = sizeof(zisofs->header) - zisofs->header_avail;
1479 memcpy(zisofs->header + zisofs->header_avail, p, xsize);
1480 zisofs->header_avail += xsize;
1484 if (!zisofs->header_passed &&
1485 zisofs->header_avail == sizeof(zisofs->header)) {
1488 if (memcmp(zisofs->header, zisofs_magic,
1489 sizeof(zisofs_magic)) != 0)
1491 if (archive_le32dec(zisofs->header + 8)
1492 != zisofs->pz_uncompressed_size)
1494 if (zisofs->header[12] != 4)
1496 if (zisofs->header[13] != zisofs->pz_log2_bs)
1499 archive_set_error(&a->archive,
1500 ARCHIVE_ERRNO_FILE_FORMAT,
1501 "Illegal zisofs file body");
1502 return (ARCHIVE_FATAL);
1504 zisofs->header_passed = 1;
1507 * Read block pointers.
1509 if (zisofs->header_passed &&
1510 zisofs->block_pointers_avail < zisofs->block_pointers_size) {
1511 xsize = zisofs->block_pointers_size
1512 - zisofs->block_pointers_avail;
1515 memcpy(zisofs->block_pointers
1516 + zisofs->block_pointers_avail, p, xsize);
1517 zisofs->block_pointers_avail += xsize;
1520 if (zisofs->block_pointers_avail
1521 == zisofs->block_pointers_size) {
1522 /* We've got all block pointers and initialize
1523 * related variables. */
1524 zisofs->block_off = 0;
1525 zisofs->block_avail = 0;
1526 /* Complete a initialization */
1527 zisofs->initialized = 1;
1531 if (!zisofs->initialized)
1532 goto next_data; /* We need more data. */
1536 * Get block offsets from block pointers.
1538 if (zisofs->block_avail == 0) {
1541 if (zisofs->block_off + 4 >= zisofs->block_pointers_size) {
1542 /* There isn't a pair of offsets. */
1543 archive_set_error(&a->archive,
1544 ARCHIVE_ERRNO_FILE_FORMAT,
1545 "Illegal zisofs block pointers");
1546 return (ARCHIVE_FATAL);
1548 bst = archive_le32dec(
1549 zisofs->block_pointers + zisofs->block_off);
1550 if (bst != zisofs->pz_offset + (bytes_read - avail)) {
1551 /* TODO: Should we seek offset of current file
1553 archive_set_error(&a->archive,
1554 ARCHIVE_ERRNO_FILE_FORMAT,
1555 "Illegal zisofs block pointers(cannot seek)");
1556 return (ARCHIVE_FATAL);
1558 bed = archive_le32dec(
1559 zisofs->block_pointers + zisofs->block_off + 4);
1561 archive_set_error(&a->archive,
1562 ARCHIVE_ERRNO_FILE_FORMAT,
1563 "Illegal zisofs block pointers");
1564 return (ARCHIVE_FATAL);
1566 zisofs->block_avail = bed - bst;
1567 zisofs->block_off += 4;
1569 /* Initialize compression library for new block. */
1570 if (zisofs->stream_valid)
1571 r = inflateReset(&zisofs->stream);
1573 r = inflateInit(&zisofs->stream);
1575 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1576 "Can't initialize zisofs decompression.");
1577 return (ARCHIVE_FATAL);
1579 zisofs->stream_valid = 1;
1580 zisofs->stream.total_in = 0;
1581 zisofs->stream.total_out = 0;
1585 * Make uncompressed data.
1587 if (zisofs->block_avail == 0) {
1588 memset(zisofs->uncompressed_buffer, 0,
1589 zisofs->uncompressed_buffer_size);
1590 uncompressed_size = zisofs->uncompressed_buffer_size;
1592 zisofs->stream.next_in = (Bytef *)(uintptr_t)(const void *)p;
1593 if (avail > zisofs->block_avail)
1594 zisofs->stream.avail_in = zisofs->block_avail;
1596 zisofs->stream.avail_in = (uInt)avail;
1597 zisofs->stream.next_out = zisofs->uncompressed_buffer;
1598 zisofs->stream.avail_out =
1599 (uInt)zisofs->uncompressed_buffer_size;
1601 r = inflate(&zisofs->stream, 0);
1603 case Z_OK: /* Decompressor made some progress.*/
1604 case Z_STREAM_END: /* Found end of stream. */
1607 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1608 "zisofs decompression failed (%d)", r);
1609 return (ARCHIVE_FATAL);
1612 zisofs->uncompressed_buffer_size - zisofs->stream.avail_out;
1613 avail -= zisofs->stream.next_in - p;
1614 zisofs->block_avail -= (uint32_t)(zisofs->stream.next_in - p);
1617 bytes_read -= avail;
1618 *buff = zisofs->uncompressed_buffer;
1619 *size = uncompressed_size;
1620 *offset = iso9660->entry_sparse_offset;
1621 iso9660->entry_sparse_offset += uncompressed_size;
1622 iso9660->entry_bytes_remaining -= bytes_read;
1623 iso9660->current_position += bytes_read;
1624 zisofs->pz_offset += (uint32_t)bytes_read;
1625 iso9660->entry_bytes_unconsumed += bytes_read;
1627 return (ARCHIVE_OK);
1630 #else /* HAVE_ZLIB_H */
1633 zisofs_read_data(struct archive_read *a,
1634 const void **buff, size_t *size, int64_t *offset)
1637 (void)buff;/* UNUSED */
1638 (void)size;/* UNUSED */
1639 (void)offset;/* UNUSED */
1640 archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
1641 "zisofs is not supported on this platform.");
1642 return (ARCHIVE_FAILED);
1645 #endif /* HAVE_ZLIB_H */
1648 archive_read_format_iso9660_read_data(struct archive_read *a,
1649 const void **buff, size_t *size, int64_t *offset)
1652 struct iso9660 *iso9660;
1654 iso9660 = (struct iso9660 *)(a->format->data);
1656 if (iso9660->entry_bytes_unconsumed) {
1657 __archive_read_consume(a, iso9660->entry_bytes_unconsumed);
1658 iso9660->entry_bytes_unconsumed = 0;
1661 if (iso9660->entry_bytes_remaining <= 0) {
1662 if (iso9660->entry_content != NULL)
1663 iso9660->entry_content = iso9660->entry_content->next;
1664 if (iso9660->entry_content == NULL) {
1667 *offset = iso9660->entry_sparse_offset;
1668 return (ARCHIVE_EOF);
1670 /* Seek forward to the start of the entry. */
1671 if (iso9660->current_position < iso9660->entry_content->offset) {
1674 step = iso9660->entry_content->offset -
1675 iso9660->current_position;
1676 step = __archive_read_consume(a, step);
1679 iso9660->current_position =
1680 iso9660->entry_content->offset;
1682 if (iso9660->entry_content->offset < iso9660->current_position) {
1683 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1684 "Ignoring out-of-order file (%s) %jd < %jd",
1685 iso9660->pathname.s,
1686 (intmax_t)iso9660->entry_content->offset,
1687 (intmax_t)iso9660->current_position);
1690 *offset = iso9660->entry_sparse_offset;
1691 return (ARCHIVE_WARN);
1693 iso9660->entry_bytes_remaining = iso9660->entry_content->size;
1695 if (iso9660->entry_zisofs.pz)
1696 return (zisofs_read_data(a, buff, size, offset));
1698 *buff = __archive_read_ahead(a, 1, &bytes_read);
1699 if (bytes_read == 0)
1700 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1701 "Truncated input file");
1703 return (ARCHIVE_FATAL);
1704 if (bytes_read > iso9660->entry_bytes_remaining)
1705 bytes_read = (ssize_t)iso9660->entry_bytes_remaining;
1707 *offset = iso9660->entry_sparse_offset;
1708 iso9660->entry_sparse_offset += bytes_read;
1709 iso9660->entry_bytes_remaining -= bytes_read;
1710 iso9660->entry_bytes_unconsumed = bytes_read;
1711 iso9660->current_position += bytes_read;
1712 return (ARCHIVE_OK);
1716 archive_read_format_iso9660_cleanup(struct archive_read *a)
1718 struct iso9660 *iso9660;
1721 iso9660 = (struct iso9660 *)(a->format->data);
1722 release_files(iso9660);
1723 free(iso9660->read_ce_req.reqs);
1724 archive_string_free(&iso9660->pathname);
1725 archive_string_free(&iso9660->previous_pathname);
1726 if (iso9660->pending_files.files)
1727 free(iso9660->pending_files.files);
1729 free(iso9660->entry_zisofs.uncompressed_buffer);
1730 free(iso9660->entry_zisofs.block_pointers);
1731 if (iso9660->entry_zisofs.stream_valid) {
1732 if (inflateEnd(&iso9660->entry_zisofs.stream) != Z_OK) {
1733 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1734 "Failed to clean up zlib decompressor");
1739 free(iso9660->utf16be_path);
1740 free(iso9660->utf16be_previous_path);
1742 (a->format->data) = NULL;
1747 * This routine parses a single ISO directory record, makes sense
1748 * of any extensions, and stores the result in memory.
1750 static struct file_info *
1751 parse_file_info(struct archive_read *a, struct file_info *parent,
1752 const unsigned char *isodirrec)
1754 struct iso9660 *iso9660;
1755 struct file_info *file, *filep;
1757 const unsigned char *rr_start, *rr_end;
1758 const unsigned char *p;
1760 uint64_t fsize, offset;
1764 iso9660 = (struct iso9660 *)(a->format->data);
1766 dr_len = (size_t)isodirrec[DR_length_offset];
1767 name_len = (size_t)isodirrec[DR_name_len_offset];
1768 location = archive_le32dec(isodirrec + DR_extent_offset);
1769 fsize = toi(isodirrec + DR_size_offset, DR_size_size);
1770 /* Sanity check that dr_len needs at least 34. */
1772 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1773 "Invalid length of directory record");
1776 /* Sanity check that name_len doesn't exceed dr_len. */
1777 if (dr_len - 33 < name_len || name_len == 0) {
1778 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1779 "Invalid length of file identifier");
1782 /* Sanity check that location doesn't exceed volume block.
1783 * Don't check lower limit of location; it's possibility
1784 * the location has negative value when file type is symbolic
1785 * link or file size is zero. As far as I know latest mkisofs
1789 (location + ((fsize + iso9660->logical_block_size -1)
1790 / iso9660->logical_block_size))
1791 > (uint32_t)iso9660->volume_block) {
1792 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1793 "Invalid location of extent of file");
1796 /* Sanity check that location doesn't have a negative value
1797 * when the file is not empty. it's too large. */
1798 if (fsize != 0 && location < 0) {
1799 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1800 "Invalid location of extent of file");
1804 /* Sanity check that this entry does not create a cycle. */
1805 offset = iso9660->logical_block_size * (uint64_t)location;
1806 for (filep = parent; filep != NULL; filep = filep->parent) {
1807 if (filep->offset == offset) {
1808 archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT,
1809 "Directory structure contains loop");
1814 /* Create a new file entry and copy data from the ISO dir record. */
1815 file = (struct file_info *)calloc(1, sizeof(*file));
1817 archive_set_error(&a->archive, ENOMEM,
1818 "No memory for file entry");
1821 file->parent = parent;
1822 file->offset = offset;
1824 file->mtime = isodate7(isodirrec + DR_date_offset);
1825 file->ctime = file->atime = file->mtime;
1826 file->rede_files.first = NULL;
1827 file->rede_files.last = &(file->rede_files.first);
1829 p = isodirrec + DR_name_offset;
1830 /* Rockridge extensions (if any) follow name. Compute this
1831 * before fidgeting the name_len below. */
1832 rr_start = p + name_len + (name_len & 1 ? 0 : 1);
1833 rr_end = isodirrec + dr_len;
1835 if (iso9660->seenJoliet) {
1836 /* Joliet names are max 64 chars (128 bytes) according to spec,
1837 * but genisoimage/mkisofs allows recording longer Joliet
1838 * names which are 103 UCS2 characters(206 bytes) by their
1839 * option '-joliet-long'.
1845 /* trim trailing first version and dot from filename.
1847 * Remember we were in UTF-16BE land!
1848 * SEPARATOR 1 (.) and SEPARATOR 2 (;) are both
1849 * 16 bits big endian characters on Joliet.
1851 * TODO: sanitize filename?
1852 * Joliet allows any UCS-2 char except:
1853 * *, /, :, ;, ? and \.
1855 /* Chop off trailing ';1' from files. */
1856 if (name_len > 4 && p[name_len-4] == 0 && p[name_len-3] == ';'
1857 && p[name_len-2] == 0 && p[name_len-1] == '1')
1859 #if 0 /* XXX: this somehow manages to strip of single-character file extensions, like '.c'. */
1860 /* Chop off trailing '.' from filenames. */
1861 if (name_len > 2 && p[name_len-2] == 0 && p[name_len-1] == '.')
1864 if ((file->utf16be_name = malloc(name_len)) == NULL) {
1865 archive_set_error(&a->archive, ENOMEM,
1866 "No memory for file name");
1869 memcpy(file->utf16be_name, p, name_len);
1870 file->utf16be_bytes = name_len;
1872 /* Chop off trailing ';1' from files. */
1873 if (name_len > 2 && p[name_len - 2] == ';' &&
1874 p[name_len - 1] == '1')
1876 /* Chop off trailing '.' from filenames. */
1877 if (name_len > 1 && p[name_len - 1] == '.')
1880 archive_strncpy(&file->name, (const char *)p, name_len);
1883 flags = isodirrec[DR_flags_offset];
1885 file->mode = AE_IFDIR | 0700;
1887 file->mode = AE_IFREG | 0400;
1889 file->multi_extent = 1;
1891 file->multi_extent = 0;
1893 * Use a location for the file number, which is treated as an inode
1894 * number to find out hardlink target. If Rockridge extensions is
1895 * being used, the file number will be overwritten by FILE SERIAL
1896 * NUMBER of RRIP "PX" extension.
1897 * Note: Old mkisofs did not record that FILE SERIAL NUMBER
1899 * Note2: xorriso set 0 to the location of a symlink file.
1901 if (file->size == 0 && location >= 0) {
1902 /* If file->size is zero, its location points wrong place,
1903 * and so we should not use it for the file number.
1904 * When the location has negative value, it can be used
1905 * for the file number.
1908 /* Do not appear before any directory entries. */
1911 file->number = (int64_t)(uint32_t)location;
1913 /* Rockridge extensions overwrite information from above. */
1914 if (iso9660->opt_support_rockridge) {
1915 if (parent == NULL && rr_end - rr_start >= 7) {
1917 if (memcmp(p, "SP\x07\x01\xbe\xef", 6) == 0) {
1919 * SP extension stores the suspOffset
1920 * (Number of bytes to skip between
1921 * filename and SUSP records.)
1922 * It is mandatory by the SUSP standard
1925 * It allows SUSP to coexist with
1926 * non-SUSP uses of the System
1927 * Use Area by placing non-SUSP data
1930 * SP extension must be in the root
1931 * directory entry, disable all SUSP
1932 * processing if not found.
1934 iso9660->suspOffset = p[6];
1935 iso9660->seenSUSP = 1;
1939 if (iso9660->seenSUSP) {
1942 file->name_continues = 0;
1943 file->symlink_continues = 0;
1944 rr_start += iso9660->suspOffset;
1945 r = parse_rockridge(a, file, rr_start, rr_end);
1946 if (r != ARCHIVE_OK) {
1951 * A file size of symbolic link files in ISO images
1952 * made by makefs is not zero and its location is
1953 * the same as those of next regular file. That is
1954 * the same as hard like file and it causes unexpected
1957 if (file->size > 0 &&
1958 (file->mode & AE_IFMT) == AE_IFLNK) {
1964 /* If there isn't SUSP, disable parsing
1965 * rock ridge extensions. */
1966 iso9660->opt_support_rockridge = 0;
1969 file->nlinks = 1;/* Reset nlink. we'll calculate it later. */
1970 /* Tell file's parent how many children that parent has. */
1971 if (parent != NULL && (flags & 0x02))
1974 if (iso9660->seenRockridge) {
1975 if (parent != NULL && parent->parent == NULL &&
1976 (flags & 0x02) && iso9660->rr_moved == NULL &&
1978 (strcmp(file->name.s, "rr_moved") == 0 ||
1979 strcmp(file->name.s, ".rr_moved") == 0)) {
1980 iso9660->rr_moved = file;
1982 file->rr_moved_has_re_only = 1;
1985 } else if (file->re) {
1987 * Sanity check: file's parent is rr_moved.
1989 if (parent == NULL || parent->rr_moved == 0) {
1990 archive_set_error(&a->archive,
1992 "Invalid Rockridge RE");
1996 * Sanity check: file does not have "CL" extension.
1998 if (file->cl_offset) {
1999 archive_set_error(&a->archive,
2001 "Invalid Rockridge RE and CL");
2005 * Sanity check: The file type must be a directory.
2007 if ((flags & 0x02) == 0) {
2008 archive_set_error(&a->archive,
2010 "Invalid Rockridge RE");
2013 } else if (parent != NULL && parent->rr_moved)
2014 file->rr_moved_has_re_only = 0;
2015 else if (parent != NULL && (flags & 0x02) &&
2016 (parent->re || parent->re_descendant))
2017 file->re_descendant = 1;
2018 if (file->cl_offset) {
2019 struct file_info *r;
2021 if (parent == NULL || parent->parent == NULL) {
2022 archive_set_error(&a->archive,
2024 "Invalid Rockridge CL");
2028 * Sanity check: The file type must be a regular file.
2030 if ((flags & 0x02) != 0) {
2031 archive_set_error(&a->archive,
2033 "Invalid Rockridge CL");
2037 /* Overwrite an offset and a number of this "CL" entry
2038 * to appear before other dirs. "+1" to those is to
2039 * make sure to appear after "RE" entry which this
2040 * "CL" entry should be connected with. */
2041 file->offset = file->number = file->cl_offset + 1;
2044 * Sanity check: cl_offset does not point at its
2045 * the parents or itself.
2047 for (r = parent; r; r = r->parent) {
2048 if (r->offset == file->cl_offset) {
2049 archive_set_error(&a->archive,
2051 "Invalid Rockridge CL");
2055 if (file->cl_offset == file->offset ||
2057 archive_set_error(&a->archive,
2059 "Invalid Rockridge CL");
2066 /* DEBUGGING: Warn about attributes I don't yet fully support. */
2067 if ((flags & ~0x02) != 0) {
2068 fprintf(stderr, "\n ** Unrecognized flag: ");
2069 dump_isodirrec(stderr, isodirrec);
2070 fprintf(stderr, "\n");
2071 } else if (toi(isodirrec + DR_volume_sequence_number_offset, 2) != 1) {
2072 fprintf(stderr, "\n ** Unrecognized sequence number: ");
2073 dump_isodirrec(stderr, isodirrec);
2074 fprintf(stderr, "\n");
2075 } else if (*(isodirrec + DR_file_unit_size_offset) != 0) {
2076 fprintf(stderr, "\n ** Unexpected file unit size: ");
2077 dump_isodirrec(stderr, isodirrec);
2078 fprintf(stderr, "\n");
2079 } else if (*(isodirrec + DR_interleave_offset) != 0) {
2080 fprintf(stderr, "\n ** Unexpected interleave: ");
2081 dump_isodirrec(stderr, isodirrec);
2082 fprintf(stderr, "\n");
2083 } else if (*(isodirrec + DR_ext_attr_length_offset) != 0) {
2084 fprintf(stderr, "\n ** Unexpected extended attribute length: ");
2085 dump_isodirrec(stderr, isodirrec);
2086 fprintf(stderr, "\n");
2089 register_file(iso9660, file);
2094 parse_rockridge(struct archive_read *a, struct file_info *file,
2095 const unsigned char *p, const unsigned char *end)
2097 struct iso9660 *iso9660;
2099 iso9660 = (struct iso9660 *)(a->format->data);
2101 while (p + 4 <= end /* Enough space for another entry. */
2102 && p[0] >= 'A' && p[0] <= 'Z' /* Sanity-check 1st char of name. */
2103 && p[1] >= 'A' && p[1] <= 'Z' /* Sanity-check 2nd char of name. */
2104 && p[2] >= 4 /* Sanity-check length. */
2105 && p + p[2] <= end) { /* Sanity-check length. */
2106 const unsigned char *data = p + 4;
2107 int data_length = p[2] - 4;
2113 if (version == 1 && data_length == 24) {
2115 * CE extension comprises:
2116 * 8 byte sector containing extension
2117 * 8 byte offset w/in above sector
2118 * 8 byte length of continuation
2121 archive_le32dec(data);
2123 archive_le32dec(data+8);
2125 archive_le32dec(data+16);
2126 if (register_CE(a, location, file)
2128 return (ARCHIVE_FATAL);
2131 else if (p[1] == 'L') {
2132 if (version == 1 && data_length == 8) {
2133 file->cl_offset = (uint64_t)
2134 iso9660->logical_block_size *
2135 (uint64_t)archive_le32dec(data);
2136 iso9660->seenRockridge = 1;
2143 parse_rockridge_NM1(file,
2145 iso9660->seenRockridge = 1;
2151 * PD extension is padding;
2152 * contents are always ignored.
2154 * PL extension won't appear;
2155 * contents are always ignored.
2158 if (version == 1 && data_length == 16) {
2159 file->rdev = toi(data,4);
2161 file->rdev |= toi(data + 8, 4);
2162 iso9660->seenRockridge = 1;
2165 else if (p[1] == 'X') {
2167 * PX extension comprises:
2169 * 8 bytes for nlinks,
2172 * 8 bytes for inode.
2175 if (data_length >= 8)
2178 if (data_length >= 16)
2181 if (data_length >= 24)
2183 = toi(data + 16, 4);
2184 if (data_length >= 32)
2186 = toi(data + 24, 4);
2187 if (data_length >= 40)
2189 = toi(data + 32, 4);
2190 iso9660->seenRockridge = 1;
2195 if (p[1] == 'E' && version == 1) {
2197 iso9660->seenRockridge = 1;
2199 else if (p[1] == 'R' && version == 1) {
2201 * RR extension comprises:
2202 * one byte flag value
2203 * This extension is obsolete,
2204 * so contents are always ignored.
2211 parse_rockridge_SL1(file,
2213 iso9660->seenRockridge = 1;
2216 else if (p[1] == 'T'
2217 && data_length == 0 && version == 1) {
2219 * ST extension marks end of this
2220 * block of SUSP entries.
2222 * It allows SUSP to coexist with
2223 * non-SUSP uses of the System
2224 * Use Area by placing non-SUSP data
2227 iso9660->seenSUSP = 0;
2228 iso9660->seenRockridge = 0;
2229 return (ARCHIVE_OK);
2235 parse_rockridge_TF1(file,
2237 iso9660->seenRockridge = 1;
2244 parse_rockridge_ZF1(file,
2254 return (ARCHIVE_OK);
2258 register_CE(struct archive_read *a, int32_t location,
2259 struct file_info *file)
2261 struct iso9660 *iso9660;
2262 struct read_ce_queue *heap;
2263 struct read_ce_req *p;
2264 uint64_t offset, parent_offset;
2267 iso9660 = (struct iso9660 *)(a->format->data);
2268 offset = ((uint64_t)location) * (uint64_t)iso9660->logical_block_size;
2269 if (((file->mode & AE_IFMT) == AE_IFREG &&
2270 offset >= file->offset) ||
2271 offset < iso9660->current_position ||
2272 (((uint64_t)file->ce_offset) + file->ce_size)
2273 > (uint64_t)iso9660->logical_block_size ||
2274 offset + file->ce_offset + file->ce_size
2275 > iso9660->volume_size) {
2276 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
2277 "Invalid parameter in SUSP \"CE\" extension");
2278 return (ARCHIVE_FATAL);
2281 /* Expand our CE list as necessary. */
2282 heap = &(iso9660->read_ce_req);
2283 if (heap->cnt >= heap->allocated) {
2286 if (heap->allocated < 16)
2289 new_size = heap->allocated * 2;
2290 /* Overflow might keep us from growing the list. */
2291 if (new_size <= heap->allocated) {
2292 archive_set_error(&a->archive, ENOMEM, "Out of memory");
2293 return (ARCHIVE_FATAL);
2295 p = calloc(new_size, sizeof(p[0]));
2297 archive_set_error(&a->archive, ENOMEM, "Out of memory");
2298 return (ARCHIVE_FATAL);
2300 if (heap->reqs != NULL) {
2301 memcpy(p, heap->reqs, heap->cnt * sizeof(*p));
2305 heap->allocated = new_size;
2309 * Start with hole at end, walk it up tree to find insertion point.
2313 parent = (hole - 1)/2;
2314 parent_offset = heap->reqs[parent].offset;
2315 if (offset >= parent_offset) {
2316 heap->reqs[hole].offset = offset;
2317 heap->reqs[hole].file = file;
2318 return (ARCHIVE_OK);
2320 /* Move parent into hole <==> move hole up tree. */
2321 heap->reqs[hole] = heap->reqs[parent];
2324 heap->reqs[0].offset = offset;
2325 heap->reqs[0].file = file;
2326 return (ARCHIVE_OK);
2330 next_CE(struct read_ce_queue *heap)
2332 uint64_t a_offset, b_offset, c_offset;
2334 struct read_ce_req tmp;
2340 * Move the last item in the heap to the root of the tree
2342 heap->reqs[0] = heap->reqs[--(heap->cnt)];
2345 * Rebalance the heap.
2347 a = 0; /* Starting element and its offset */
2348 a_offset = heap->reqs[a].offset;
2350 b = a + a + 1; /* First child */
2353 b_offset = heap->reqs[b].offset;
2354 c = b + 1; /* Use second child if it is smaller. */
2355 if (c < heap->cnt) {
2356 c_offset = heap->reqs[c].offset;
2357 if (c_offset < b_offset) {
2359 b_offset = c_offset;
2362 if (a_offset <= b_offset)
2364 tmp = heap->reqs[a];
2365 heap->reqs[a] = heap->reqs[b];
2366 heap->reqs[b] = tmp;
2373 read_CE(struct archive_read *a, struct iso9660 *iso9660)
2375 struct read_ce_queue *heap;
2376 const unsigned char *b, *p, *end;
2377 struct file_info *file;
2381 /* Read data which RRIP "CE" extension points. */
2382 heap = &(iso9660->read_ce_req);
2383 step = iso9660->logical_block_size;
2385 heap->reqs[0].offset == iso9660->current_position) {
2386 b = __archive_read_ahead(a, step, NULL);
2388 archive_set_error(&a->archive,
2390 "Failed to read full block when scanning "
2391 "ISO9660 directory list");
2392 return (ARCHIVE_FATAL);
2395 file = heap->reqs[0].file;
2396 if (file->ce_offset + file->ce_size > step) {
2397 archive_set_error(&a->archive,
2398 ARCHIVE_ERRNO_FILE_FORMAT,
2399 "Malformed CE information");
2400 return (ARCHIVE_FATAL);
2402 p = b + file->ce_offset;
2403 end = p + file->ce_size;
2405 r = parse_rockridge(a, file, p, end);
2406 if (r != ARCHIVE_OK)
2407 return (ARCHIVE_FATAL);
2408 } while (heap->cnt &&
2409 heap->reqs[0].offset == iso9660->current_position);
2410 /* NOTE: Do not move this consume's code to front of
2411 * do-while loop. Registration of nested CE extension
2412 * might cause error because of current position. */
2413 __archive_read_consume(a, step);
2414 iso9660->current_position += step;
2416 return (ARCHIVE_OK);
2420 parse_rockridge_NM1(struct file_info *file,
2421 const unsigned char *data, int data_length)
2423 if (!file->name_continues)
2424 archive_string_empty(&file->name);
2425 file->name_continues = 0;
2426 if (data_length < 1)
2429 * NM version 1 extension comprises:
2430 * 1 byte flag, value is one of:
2431 * = 0: remainder is name
2432 * = 1: remainder is name, next NM entry continues name
2435 * = 32: Implementation specific
2436 * All other values are reserved.
2440 if (data_length < 2)
2442 archive_strncat(&file->name,
2443 (const char *)data + 1, data_length - 1);
2446 if (data_length < 2)
2448 archive_strncat(&file->name,
2449 (const char *)data + 1, data_length - 1);
2450 file->name_continues = 1;
2453 archive_strcat(&file->name, ".");
2456 archive_strcat(&file->name, "..");
2465 parse_rockridge_TF1(struct file_info *file, const unsigned char *data,
2470 * TF extension comprises:
2472 * create time (optional)
2473 * modify time (optional)
2474 * access time (optional)
2475 * attribute time (optional)
2476 * Time format and presence of fields
2477 * is controlled by flag bits.
2479 if (data_length < 1)
2485 /* Use 17-byte time format. */
2486 if ((flag & 1) && data_length >= 17) {
2488 file->birthtime_is_set = 1;
2489 file->birthtime = isodate17(data);
2493 if ((flag & 2) && data_length >= 17) {
2495 file->mtime = isodate17(data);
2499 if ((flag & 4) && data_length >= 17) {
2501 file->atime = isodate17(data);
2505 if ((flag & 8) && data_length >= 17) {
2506 /* Attribute change time. */
2507 file->ctime = isodate17(data);
2510 /* Use 7-byte time format. */
2511 if ((flag & 1) && data_length >= 7) {
2513 file->birthtime_is_set = 1;
2514 file->birthtime = isodate7(data);
2518 if ((flag & 2) && data_length >= 7) {
2520 file->mtime = isodate7(data);
2524 if ((flag & 4) && data_length >= 7) {
2526 file->atime = isodate7(data);
2530 if ((flag & 8) && data_length >= 7) {
2531 /* Attribute change time. */
2532 file->ctime = isodate7(data);
2538 parse_rockridge_SL1(struct file_info *file, const unsigned char *data,
2541 const char *separator = "";
2543 if (!file->symlink_continues || file->symlink.length < 1)
2544 archive_string_empty(&file->symlink);
2545 file->symlink_continues = 0;
2548 * Defined flag values:
2549 * 0: This is the last SL record for this symbolic link
2550 * 1: this symbolic link field continues in next SL entry
2551 * All other values are reserved.
2553 if (data_length < 1)
2559 file->symlink_continues = 1;
2564 ++data; /* Skip flag byte. */
2568 * SL extension body stores "components".
2569 * Basically, this is a complicated way of storing
2570 * a POSIX path. It also interferes with using
2571 * symlinks for storing non-path data. <sigh>
2573 * Each component is 2 bytes (flag and length)
2574 * possibly followed by name data.
2576 while (data_length >= 2) {
2577 unsigned char flag = *data++;
2578 unsigned char nlen = *data++;
2581 archive_strcat(&file->symlink, separator);
2585 case 0: /* Usual case, this is text. */
2586 if (data_length < nlen)
2588 archive_strncat(&file->symlink,
2589 (const char *)data, nlen);
2591 case 0x01: /* Text continues in next component. */
2592 if (data_length < nlen)
2594 archive_strncat(&file->symlink,
2595 (const char *)data, nlen);
2598 case 0x02: /* Current dir. */
2599 archive_strcat(&file->symlink, ".");
2601 case 0x04: /* Parent dir. */
2602 archive_strcat(&file->symlink, "..");
2604 case 0x08: /* Root of filesystem. */
2605 archive_strcat(&file->symlink, "/");
2608 case 0x10: /* Undefined (historically "volume root" */
2609 archive_string_empty(&file->symlink);
2610 archive_strcat(&file->symlink, "ROOT");
2612 case 0x20: /* Undefined (historically "hostname") */
2613 archive_strcat(&file->symlink, "hostname");
2616 /* TODO: issue a warning ? */
2620 data_length -= nlen;
2625 parse_rockridge_ZF1(struct file_info *file, const unsigned char *data,
2629 if (data[0] == 0x70 && data[1] == 0x7a && data_length == 12) {
2632 file->pz_log2_bs = data[3];
2633 file->pz_uncompressed_size = archive_le32dec(&data[4]);
2638 register_file(struct iso9660 *iso9660, struct file_info *file)
2641 file->use_next = iso9660->use_files;
2642 iso9660->use_files = file;
2646 release_files(struct iso9660 *iso9660)
2648 struct content *con, *connext;
2649 struct file_info *file;
2651 file = iso9660->use_files;
2652 while (file != NULL) {
2653 struct file_info *next = file->use_next;
2655 archive_string_free(&file->name);
2656 archive_string_free(&file->symlink);
2657 free(file->utf16be_name);
2658 con = file->contents.first;
2659 while (con != NULL) {
2660 connext = con->next;
2670 next_entry_seek(struct archive_read *a, struct iso9660 *iso9660,
2671 struct file_info **pfile)
2673 struct file_info *file;
2676 r = next_cache_entry(a, iso9660, pfile);
2677 if (r != ARCHIVE_OK)
2681 /* Don't waste time seeking for zero-length bodies. */
2682 if (file->size == 0)
2683 file->offset = iso9660->current_position;
2685 /* flush any remaining bytes from the last round to ensure
2686 * we're positioned */
2687 if (iso9660->entry_bytes_unconsumed) {
2688 __archive_read_consume(a, iso9660->entry_bytes_unconsumed);
2689 iso9660->entry_bytes_unconsumed = 0;
2692 /* Seek forward to the start of the entry. */
2693 if (iso9660->current_position < file->offset) {
2696 step = file->offset - iso9660->current_position;
2697 step = __archive_read_consume(a, step);
2700 iso9660->current_position = file->offset;
2703 /* We found body of file; handle it now. */
2704 return (ARCHIVE_OK);
2708 next_cache_entry(struct archive_read *a, struct iso9660 *iso9660,
2709 struct file_info **pfile)
2711 struct file_info *file;
2713 struct file_info *first;
2714 struct file_info **last;
2719 file = cache_get_entry(iso9660);
2722 return (ARCHIVE_OK);
2726 struct file_info *re, *d;
2728 *pfile = file = next_entry(iso9660);
2731 * If directory entries all which are descendant of
2732 * rr_moved are still remaining, expose their.
2734 if (iso9660->re_files.first != NULL &&
2735 iso9660->rr_moved != NULL &&
2736 iso9660->rr_moved->rr_moved_has_re_only)
2737 /* Expose "rr_moved" entry. */
2738 cache_add_entry(iso9660, iso9660->rr_moved);
2739 while ((re = re_get_entry(iso9660)) != NULL) {
2740 /* Expose its descendant dirs. */
2741 while ((d = rede_get_entry(re)) != NULL)
2742 cache_add_entry(iso9660, d);
2744 if (iso9660->cache_files.first != NULL)
2745 return (next_cache_entry(a, iso9660, pfile));
2746 return (ARCHIVE_EOF);
2749 if (file->cl_offset) {
2750 struct file_info *first_re = NULL;
2754 * Find "RE" dir for the current file, which
2757 while ((re = re_get_entry(iso9660))
2759 if (first_re == NULL)
2761 if (re->offset == file->cl_offset) {
2762 re->parent->subdirs--;
2763 re->parent = file->parent;
2765 if (re->parent->re_descendant) {
2767 re->re_descendant = 1;
2768 if (rede_add_entry(re) < 0)
2770 /* Move a list of descendants
2771 * to a new ancestor. */
2772 while ((d = rede_get_entry(
2774 if (rede_add_entry(d)
2779 /* Replace the current file
2782 /* Expose its descendant */
2783 while ((d = rede_get_entry(
2789 re_add_entry(iso9660, re);
2793 * Do not expose this at this time
2794 * because we have not gotten its full-path
2799 } else if ((file->mode & AE_IFMT) == AE_IFDIR) {
2802 /* Read file entries in this dir. */
2803 r = read_children(a, file);
2804 if (r != ARCHIVE_OK)
2808 * Handle a special dir of Rockridge extensions,
2811 if (file->rr_moved) {
2813 * If this has only the subdirectories which
2814 * have "RE" flags, do not expose at this time.
2816 if (file->rr_moved_has_re_only)
2818 /* Otherwise expose "rr_moved" entry. */
2819 } else if (file->re) {
2821 * Do not expose this at this time
2822 * because we have not gotten its full-path
2825 re_add_entry(iso9660, file);
2827 } else if (file->re_descendant) {
2829 * If the top level "RE" entry of this entry
2830 * is not exposed, we, accordingly, should not
2831 * expose this entry at this time because
2832 * we cannot make its proper full-path name.
2834 if (rede_add_entry(file) == 0)
2836 /* Otherwise we can expose this entry because
2837 * it seems its top level "RE" has already been
2844 if ((file->mode & AE_IFMT) != AE_IFREG || file->number == -1)
2845 return (ARCHIVE_OK);
2848 number = file->number;
2849 iso9660->cache_files.first = NULL;
2850 iso9660->cache_files.last = &(iso9660->cache_files.first);
2851 empty_files.first = NULL;
2852 empty_files.last = &empty_files.first;
2853 /* Collect files which has the same file serial number.
2854 * Peek pending_files so that file which number is different
2855 * is not put back. */
2856 while (iso9660->pending_files.used > 0 &&
2857 (iso9660->pending_files.files[0]->number == -1 ||
2858 iso9660->pending_files.files[0]->number == number)) {
2859 if (file->number == -1) {
2860 /* This file has the same offset
2861 * but it's wrong offset which empty files
2862 * and symlink files have.
2863 * NOTE: This wrong offset was recorded by
2864 * old mkisofs utility. If ISO images is
2865 * created by latest mkisofs, this does not
2869 *empty_files.last = file;
2870 empty_files.last = &(file->next);
2873 cache_add_entry(iso9660, file);
2875 file = next_entry(iso9660);
2880 return ((file == NULL)?ARCHIVE_EOF:ARCHIVE_OK);
2882 if (file->number == -1) {
2884 *empty_files.last = file;
2885 empty_files.last = &(file->next);
2888 cache_add_entry(iso9660, file);
2892 /* The count is the same as number of hardlink,
2893 * so much so that each nlinks of files in cache_file
2894 * is overwritten by value of the count.
2896 for (file = iso9660->cache_files.first;
2897 file != NULL; file = file->next)
2898 file->nlinks = count;
2900 /* If there are empty files, that files are added
2901 * to the tail of the cache_files. */
2902 if (empty_files.first != NULL) {
2903 *iso9660->cache_files.last = empty_files.first;
2904 iso9660->cache_files.last = empty_files.last;
2906 *pfile = cache_get_entry(iso9660);
2907 return ((*pfile == NULL)?ARCHIVE_EOF:ARCHIVE_OK);
2910 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
2911 "Failed to connect 'CL' pointer to 'RE' rr_moved pointer of "
2912 "Rockridge extensions: current position = %jd, CL offset = %jd",
2913 (intmax_t)iso9660->current_position, (intmax_t)file->cl_offset);
2914 return (ARCHIVE_FATAL);
2918 re_add_entry(struct iso9660 *iso9660, struct file_info *file)
2920 file->re_next = NULL;
2921 *iso9660->re_files.last = file;
2922 iso9660->re_files.last = &(file->re_next);
2925 static inline struct file_info *
2926 re_get_entry(struct iso9660 *iso9660)
2928 struct file_info *file;
2930 if ((file = iso9660->re_files.first) != NULL) {
2931 iso9660->re_files.first = file->re_next;
2932 if (iso9660->re_files.first == NULL)
2933 iso9660->re_files.last =
2934 &(iso9660->re_files.first);
2940 rede_add_entry(struct file_info *file)
2942 struct file_info *re;
2948 while (re != NULL && !re->re)
2953 file->re_next = NULL;
2954 *re->rede_files.last = file;
2955 re->rede_files.last = &(file->re_next);
2959 static inline struct file_info *
2960 rede_get_entry(struct file_info *re)
2962 struct file_info *file;
2964 if ((file = re->rede_files.first) != NULL) {
2965 re->rede_files.first = file->re_next;
2966 if (re->rede_files.first == NULL)
2967 re->rede_files.last =
2968 &(re->rede_files.first);
2974 cache_add_entry(struct iso9660 *iso9660, struct file_info *file)
2977 *iso9660->cache_files.last = file;
2978 iso9660->cache_files.last = &(file->next);
2981 static inline struct file_info *
2982 cache_get_entry(struct iso9660 *iso9660)
2984 struct file_info *file;
2986 if ((file = iso9660->cache_files.first) != NULL) {
2987 iso9660->cache_files.first = file->next;
2988 if (iso9660->cache_files.first == NULL)
2989 iso9660->cache_files.last =
2990 &(iso9660->cache_files.first);
2996 heap_add_entry(struct archive_read *a, struct heap_queue *heap,
2997 struct file_info *file, uint64_t key)
2999 uint64_t file_key, parent_key;
3002 /* Expand our pending files list as necessary. */
3003 if (heap->used >= heap->allocated) {
3004 struct file_info **new_pending_files;
3005 int new_size = heap->allocated * 2;
3007 if (heap->allocated < 1024)
3009 /* Overflow might keep us from growing the list. */
3010 if (new_size <= heap->allocated) {
3011 archive_set_error(&a->archive,
3012 ENOMEM, "Out of memory");
3013 return (ARCHIVE_FATAL);
3015 new_pending_files = (struct file_info **)
3016 malloc(new_size * sizeof(new_pending_files[0]));
3017 if (new_pending_files == NULL) {
3018 archive_set_error(&a->archive,
3019 ENOMEM, "Out of memory");
3020 return (ARCHIVE_FATAL);
3022 memcpy(new_pending_files, heap->files,
3023 heap->allocated * sizeof(new_pending_files[0]));
3024 if (heap->files != NULL)
3026 heap->files = new_pending_files;
3027 heap->allocated = new_size;
3030 file_key = file->key = key;
3033 * Start with hole at end, walk it up tree to find insertion point.
3035 hole = heap->used++;
3037 parent = (hole - 1)/2;
3038 parent_key = heap->files[parent]->key;
3039 if (file_key >= parent_key) {
3040 heap->files[hole] = file;
3041 return (ARCHIVE_OK);
3043 /* Move parent into hole <==> move hole up tree. */
3044 heap->files[hole] = heap->files[parent];
3047 heap->files[0] = file;
3049 return (ARCHIVE_OK);
3052 static struct file_info *
3053 heap_get_entry(struct heap_queue *heap)
3055 uint64_t a_key, b_key, c_key;
3057 struct file_info *r, *tmp;
3063 * The first file in the list is the earliest; we'll return this.
3068 * Move the last item in the heap to the root of the tree
3070 heap->files[0] = heap->files[--(heap->used)];
3073 * Rebalance the heap.
3075 a = 0; /* Starting element and its heap key */
3076 a_key = heap->files[a]->key;
3078 b = a + a + 1; /* First child */
3079 if (b >= heap->used)
3081 b_key = heap->files[b]->key;
3082 c = b + 1; /* Use second child if it is smaller. */
3083 if (c < heap->used) {
3084 c_key = heap->files[c]->key;
3085 if (c_key < b_key) {
3092 tmp = heap->files[a];
3093 heap->files[a] = heap->files[b];
3094 heap->files[b] = tmp;
3100 toi(const void *p, int n)
3102 const unsigned char *v = (const unsigned char *)p;
3104 return v[0] + 256 * toi(v + 1, n - 1);
3111 isodate7(const unsigned char *v)
3117 memset(&tm, 0, sizeof(tm));
3119 tm.tm_mon = v[1] - 1;
3124 /* v[6] is the signed timezone offset, in 1/4-hour increments. */
3125 offset = ((const signed char *)v)[6];
3126 if (offset > -48 && offset < 52) {
3127 tm.tm_hour -= offset / 4;
3128 tm.tm_min -= (offset % 4) * 15;
3130 t = time_from_tm(&tm);
3131 if (t == (time_t)-1)
3137 isodate17(const unsigned char *v)
3143 memset(&tm, 0, sizeof(tm));
3144 tm.tm_year = (v[0] - '0') * 1000 + (v[1] - '0') * 100
3145 + (v[2] - '0') * 10 + (v[3] - '0')
3147 tm.tm_mon = (v[4] - '0') * 10 + (v[5] - '0');
3148 tm.tm_mday = (v[6] - '0') * 10 + (v[7] - '0');
3149 tm.tm_hour = (v[8] - '0') * 10 + (v[9] - '0');
3150 tm.tm_min = (v[10] - '0') * 10 + (v[11] - '0');
3151 tm.tm_sec = (v[12] - '0') * 10 + (v[13] - '0');
3152 /* v[16] is the signed timezone offset, in 1/4-hour increments. */
3153 offset = ((const signed char *)v)[16];
3154 if (offset > -48 && offset < 52) {
3155 tm.tm_hour -= offset / 4;
3156 tm.tm_min -= (offset % 4) * 15;
3158 t = time_from_tm(&tm);
3159 if (t == (time_t)-1)
3165 time_from_tm(struct tm *t)
3168 /* Use platform timegm() if available. */
3170 #elif HAVE__MKGMTIME64
3171 return (_mkgmtime64(t));
3173 /* Else use direct calculation using POSIX assumptions. */
3174 /* First, fix up tm_yday based on the year/month/day. */
3175 if (mktime(t) == (time_t)-1)
3176 return ((time_t)-1);
3177 /* Then we can compute timegm() from first principles. */
3181 + t->tm_yday * 86400
3182 + (t->tm_year - 70) * 31536000
3183 + ((t->tm_year - 69) / 4) * 86400
3184 - ((t->tm_year - 1) / 100) * 86400
3185 + ((t->tm_year + 299) / 400) * 86400);
3190 build_pathname(struct archive_string *as, struct file_info *file, int depth)
3192 // Plain ISO9660 only allows 8 dir levels; if we get
3193 // to 1000, then something is very, very wrong.
3197 if (file->parent != NULL && archive_strlen(&file->parent->name) > 0) {
3198 if (build_pathname(as, file->parent, depth + 1) == NULL) {
3201 archive_strcat(as, "/");
3203 if (archive_strlen(&file->name) == 0)
3204 archive_strcat(as, ".");
3206 archive_string_concat(as, &file->name);
3211 build_pathname_utf16be(unsigned char *p, size_t max, size_t *len,
3212 struct file_info *file)
3214 if (file->parent != NULL && file->parent->utf16be_bytes > 0) {
3215 if (build_pathname_utf16be(p, max, len, file->parent) != 0)
3221 if (file->utf16be_bytes == 0) {
3223 return (-1);/* Path is too long! */
3228 if (*len + file->utf16be_bytes > max)
3229 return (-1);/* Path is too long! */
3230 memcpy(p + *len, file->utf16be_name, file->utf16be_bytes);
3231 *len += file->utf16be_bytes;
3238 dump_isodirrec(FILE *out, const unsigned char *isodirrec)
3240 fprintf(out, " l %d,",
3241 toi(isodirrec + DR_length_offset, DR_length_size));
3242 fprintf(out, " a %d,",
3243 toi(isodirrec + DR_ext_attr_length_offset, DR_ext_attr_length_size));
3244 fprintf(out, " ext 0x%x,",
3245 toi(isodirrec + DR_extent_offset, DR_extent_size));
3246 fprintf(out, " s %d,",
3247 toi(isodirrec + DR_size_offset, DR_extent_size));
3248 fprintf(out, " f 0x%x,",
3249 toi(isodirrec + DR_flags_offset, DR_flags_size));
3250 fprintf(out, " u %d,",
3251 toi(isodirrec + DR_file_unit_size_offset, DR_file_unit_size_size));
3252 fprintf(out, " ilv %d,",
3253 toi(isodirrec + DR_interleave_offset, DR_interleave_size));
3254 fprintf(out, " seq %d,",
3255 toi(isodirrec + DR_volume_sequence_number_offset,
3256 DR_volume_sequence_number_size));
3257 fprintf(out, " nl %d:",
3258 toi(isodirrec + DR_name_len_offset, DR_name_len_size));
3259 fprintf(out, " `%.*s'",
3260 toi(isodirrec + DR_name_len_offset, DR_name_len_size),
3261 isodirrec + DR_name_offset);