2 * Copyright (c) 2011 Michihiro NAKAJIMA
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #include "archive_platform.h"
27 __FBSDID("$FreeBSD$");
45 #include "archive_crc32.h"
47 #include "archive_endian.h"
48 #include "archive_entry.h"
49 #include "archive_entry_locale.h"
50 #include "archive_ppmd7_private.h"
51 #include "archive_private.h"
52 #include "archive_rb.h"
53 #include "archive_string.h"
54 #include "archive_write_private.h"
60 #define _7Z_LZMA1 0x030101
61 #define _7Z_LZMA2 0x21
62 #define _7Z_DEFLATE 0x040108
63 #define _7Z_BZIP2 0x040202
64 #define _7Z_PPMD 0x030401
67 * 7-Zip header property IDs.
71 #define kArchiveProperties 0x02
72 #define kAdditionalStreamsInfo 0x03
73 #define kMainStreamsInfo 0x04
74 #define kFilesInfo 0x05
75 #define kPackInfo 0x06
76 #define kUnPackInfo 0x07
77 #define kSubStreamsInfo 0x08
81 #define kCodersUnPackSize 0x0C
82 #define kNumUnPackStream 0x0D
83 #define kEmptyStream 0x0E
84 #define kEmptyFile 0x0F
90 #define kAttributes 0x15
91 #define kEncodedHeader 0x17
99 * A stream object of universal compressor.
102 const uint8_t *next_in;
115 int (*code) (struct archive *a,
116 struct la_zstream *lastrm,
117 enum la_zaction action);
118 int (*end)(struct archive *a,
119 struct la_zstream *lastrm);
122 #define PPMD7_DEFAULT_ORDER 6
123 #define PPMD7_DEFAULT_MEM_SIZE (1 << 24)
127 CPpmd7 ppmd7_context;
128 CPpmd7z_RangeEnc range_enc;
143 struct archive_rb_node rbnode;
147 uint8_t *utf16name;/* UTF16-LE name. */
150 #define MTIME_IS_SET (1<<0)
151 #define ATIME_IS_SET (1<<1)
152 #define CTIME_IS_SET (1<<2)
153 #define CRC32_IS_SET (1<<3)
154 #define HAS_STREAM (1<<4)
172 uint64_t temp_offset;
174 struct file *cur_file;
175 size_t total_number_entry;
176 size_t total_number_nonempty_entry;
177 size_t total_number_empty_entry;
178 size_t total_number_dir_entry;
179 size_t total_bytes_entry_name;
180 size_t total_number_time_defined[3];
181 uint64_t total_bytes_compressed;
182 uint64_t total_bytes_uncompressed;
183 uint64_t entry_bytes_remaining;
184 uint32_t entry_crc32;
185 uint32_t precode_crc32;
186 uint32_t encoded_crc32;
188 #define PRECODE_CRC32 1
189 #define ENCODED_CRC32 2
191 unsigned opt_compression;
192 int opt_compression_level;
194 struct la_zstream stream;
197 struct archive_string_conv *sconv;
200 * Compressed data buffer.
202 unsigned char wbuff[1024 * 64];
203 size_t wbuff_remaining;
206 * The list of the file entries which has its contents is used to
207 * manage struct file objects.
208 * We use 'next' a menber of struct file to chain.
213 } file_list, empty_list;
214 struct archive_rb_tree rbtree;/* for empty files */
217 static int _7z_options(struct archive_write *,
218 const char *, const char *);
219 static int _7z_write_header(struct archive_write *,
220 struct archive_entry *);
221 static ssize_t _7z_write_data(struct archive_write *,
222 const void *, size_t);
223 static int _7z_finish_entry(struct archive_write *);
224 static int _7z_close(struct archive_write *);
225 static int _7z_free(struct archive_write *);
226 static int file_cmp_node(const struct archive_rb_node *,
227 const struct archive_rb_node *);
228 static int file_cmp_key(const struct archive_rb_node *, const void *);
229 static int file_new(struct archive_write *a, struct archive_entry *,
231 static void file_free(struct file *);
232 static void file_register(struct _7zip *, struct file *);
233 static void file_register_empty(struct _7zip *, struct file *);
234 static void file_init_register(struct _7zip *);
235 static void file_init_register_empty(struct _7zip *);
236 static void file_free_register(struct _7zip *);
237 static ssize_t compress_out(struct archive_write *, const void *, size_t ,
239 static int compression_init_encoder_copy(struct archive *,
240 struct la_zstream *);
241 static int compression_code_copy(struct archive *,
242 struct la_zstream *, enum la_zaction);
243 static int compression_end_copy(struct archive *, struct la_zstream *);
244 static int compression_init_encoder_deflate(struct archive *,
245 struct la_zstream *, int, int);
247 static int compression_code_deflate(struct archive *,
248 struct la_zstream *, enum la_zaction);
249 static int compression_end_deflate(struct archive *, struct la_zstream *);
251 static int compression_init_encoder_bzip2(struct archive *,
252 struct la_zstream *, int);
253 #if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR)
254 static int compression_code_bzip2(struct archive *,
255 struct la_zstream *, enum la_zaction);
256 static int compression_end_bzip2(struct archive *, struct la_zstream *);
258 static int compression_init_encoder_lzma1(struct archive *,
259 struct la_zstream *, int);
260 static int compression_init_encoder_lzma2(struct archive *,
261 struct la_zstream *, int);
262 #if defined(HAVE_LZMA_H)
263 static int compression_code_lzma(struct archive *,
264 struct la_zstream *, enum la_zaction);
265 static int compression_end_lzma(struct archive *, struct la_zstream *);
267 static int compression_init_encoder_ppmd(struct archive *,
268 struct la_zstream *, unsigned, uint32_t);
269 static int compression_code_ppmd(struct archive *,
270 struct la_zstream *, enum la_zaction);
271 static int compression_end_ppmd(struct archive *, struct la_zstream *);
272 static int _7z_compression_init_encoder(struct archive_write *, unsigned,
274 static int compression_code(struct archive *,
275 struct la_zstream *, enum la_zaction);
276 static int compression_end(struct archive *,
277 struct la_zstream *);
278 static int enc_uint64(struct archive_write *, uint64_t);
279 static int make_header(struct archive_write *, uint64_t, uint64_t,
280 uint64_t, int, struct coder *);
281 static int make_streamsInfo(struct archive_write *, uint64_t, uint64_t,
282 uint64_t, int, struct coder *, int, uint32_t);
285 archive_write_set_format_7zip(struct archive *_a)
287 static const struct archive_rb_tree_ops rb_ops = {
288 file_cmp_node, file_cmp_key
290 struct archive_write *a = (struct archive_write *)_a;
293 archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
294 ARCHIVE_STATE_NEW, "archive_write_set_format_7zip");
296 /* If another format was already registered, unregister it. */
297 if (a->format_free != NULL)
300 zip = calloc(1, sizeof(*zip));
302 archive_set_error(&a->archive, ENOMEM,
303 "Can't allocate 7-Zip data");
304 return (ARCHIVE_FATAL);
307 __archive_rb_tree_init(&(zip->rbtree), &rb_ops);
308 file_init_register(zip);
309 file_init_register_empty(zip);
311 /* Set default compression type and its level. */
313 zip->opt_compression = _7Z_LZMA1;
314 #elif defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR)
315 zip->opt_compression = _7Z_BZIP2;
316 #elif defined(HAVE_ZLIB_H)
317 zip->opt_compression = _7Z_DEFLATE;
319 zip->opt_compression = _7Z_COPY;
321 zip->opt_compression_level = 6;
323 a->format_data = zip;
325 a->format_name = "7zip";
326 a->format_options = _7z_options;
327 a->format_write_header = _7z_write_header;
328 a->format_write_data = _7z_write_data;
329 a->format_finish_entry = _7z_finish_entry;
330 a->format_close = _7z_close;
331 a->format_free = _7z_free;
332 a->archive.archive_format = ARCHIVE_FORMAT_7ZIP;
333 a->archive.archive_format_name = "7zip";
339 _7z_options(struct archive_write *a, const char *key, const char *value)
343 zip = (struct _7zip *)a->format_data;
345 if (strcmp(key, "compression") == 0) {
346 const char *name = NULL;
348 if (value == NULL || strcmp(value, "copy") == 0 ||
349 strcmp(value, "COPY") == 0 ||
350 strcmp(value, "store") == 0 ||
351 strcmp(value, "STORE") == 0)
352 zip->opt_compression = _7Z_COPY;
353 else if (strcmp(value, "deflate") == 0 ||
354 strcmp(value, "DEFLATE") == 0)
356 zip->opt_compression = _7Z_DEFLATE;
360 else if (strcmp(value, "bzip2") == 0 ||
361 strcmp(value, "BZIP2") == 0)
362 #if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR)
363 zip->opt_compression = _7Z_BZIP2;
367 else if (strcmp(value, "lzma1") == 0 ||
368 strcmp(value, "LZMA1") == 0)
370 zip->opt_compression = _7Z_LZMA1;
374 else if (strcmp(value, "lzma2") == 0 ||
375 strcmp(value, "LZMA2") == 0)
377 zip->opt_compression = _7Z_LZMA2;
381 else if (strcmp(value, "ppmd") == 0 ||
382 strcmp(value, "PPMD") == 0 ||
383 strcmp(value, "PPMd") == 0)
384 zip->opt_compression = _7Z_PPMD;
386 archive_set_error(&(a->archive),
388 "Unkonwn compression name: `%s'",
390 return (ARCHIVE_FAILED);
393 archive_set_error(&(a->archive),
395 "`%s' compression not supported "
398 return (ARCHIVE_FAILED);
402 if (strcmp(key, "compression-level") == 0) {
404 !(value[0] >= '0' && value[0] <= '9') ||
406 archive_set_error(&(a->archive),
408 "Illeagal value `%s'",
410 return (ARCHIVE_FAILED);
412 zip->opt_compression_level = value[0] - '0';
416 return (ARCHIVE_FAILED);
420 _7z_write_header(struct archive_write *a, struct archive_entry *entry)
426 zip = (struct _7zip *)a->format_data;
427 zip->cur_file = NULL;
428 zip->entry_bytes_remaining = 0;
430 if (zip->sconv == NULL) {
431 zip->sconv = archive_string_conversion_to_charset(
432 &a->archive, "UTF-16LE", 1);
433 if (zip->sconv == NULL)
434 return (ARCHIVE_FATAL);
437 r = file_new(a, entry, &file);
438 if (r < ARCHIVE_WARN) {
443 if (file->flg & MTIME_IS_SET)
444 zip->total_number_time_defined[MTIME]++;
445 if (file->flg & CTIME_IS_SET)
446 zip->total_number_time_defined[CTIME]++;
447 if (file->flg & ATIME_IS_SET)
448 zip->total_number_time_defined[ATIME]++;
450 if (file->size == 0 && file->dir) {
451 if (!__archive_rb_tree_insert_node(&(zip->rbtree),
452 (struct archive_rb_node *)file))
455 zip->total_number_entry++;
456 zip->total_bytes_entry_name += file->name_len + 2;
457 if (file->size == 0) {
458 /* Count up the number of empty files. */
459 zip->total_number_empty_entry++;
461 zip->total_number_dir_entry++;
463 file_register_empty(zip, file);
470 if ((zip->total_number_entry - zip->total_number_empty_entry) == 1) {
471 r = _7z_compression_init_encoder(a, zip->opt_compression,
472 zip->opt_compression_level);
475 return (ARCHIVE_FATAL);
479 /* Register a non-empty file. */
480 file_register(zip, file);
483 * Set the current file to cur_file to read its contents.
485 zip->cur_file = file;
488 /* Save a offset of current file in temporary file. */
489 zip->entry_bytes_remaining = file->size;
490 zip->entry_crc32 = 0;
493 * Store a symbolic link name as file contents.
495 if (archive_entry_filetype(entry) == AE_IFLNK) {
497 const void *p = (const void *)archive_entry_symlink(entry);
498 bytes = compress_out(a, p, file->size, ARCHIVE_Z_RUN);
501 zip->entry_crc32 = crc32(zip->entry_crc32, p, bytes);
502 zip->entry_bytes_remaining -= bytes;
509 * Write data to a temporary file.
512 write_to_temp(struct archive_write *a, const void *buff, size_t s)
518 zip = (struct _7zip *)a->format_data;
521 * Open a temporary file.
523 if (zip->temp_fd == -1) {
524 zip->temp_offset = 0;
525 zip->temp_fd = __archive_mktemp(NULL);
526 if (zip->temp_fd < 0) {
527 archive_set_error(&a->archive, errno,
528 "Couldn't create temporary file");
529 return (ARCHIVE_FATAL);
533 p = (unsigned char *)buff;
535 ws = write(zip->temp_fd, p, s);
537 archive_set_error(&(a->archive), errno,
538 "fwrite function failed");
539 return (ARCHIVE_FATAL);
543 zip->temp_offset += ws;
549 compress_out(struct archive_write *a, const void *buff, size_t s,
552 struct _7zip *zip = (struct _7zip *)a->format_data;
555 if (run == ARCHIVE_Z_FINISH && zip->stream.total_in == 0 && s == 0)
558 if ((zip->crc32flg & PRECODE_CRC32) && s)
559 zip->precode_crc32 = crc32(zip->precode_crc32, buff, s);
560 zip->stream.next_in = (const unsigned char *)buff;
561 zip->stream.avail_in = s;
563 /* Compress file data. */
564 r = compression_code(&(a->archive), &(zip->stream), run);
565 if (r != ARCHIVE_OK && r != ARCHIVE_EOF)
566 return (ARCHIVE_FATAL);
567 if (zip->stream.avail_out == 0) {
568 if (write_to_temp(a, zip->wbuff, sizeof(zip->wbuff))
570 return (ARCHIVE_FATAL);
571 zip->stream.next_out = zip->wbuff;
572 zip->stream.avail_out = sizeof(zip->wbuff);
573 if (zip->crc32flg & ENCODED_CRC32)
574 zip->encoded_crc32 = crc32(zip->encoded_crc32,
575 zip->wbuff, sizeof(zip->wbuff));
577 } while (zip->stream.avail_in);
578 if (run == ARCHIVE_Z_FINISH) {
579 uint64_t bytes = sizeof(zip->wbuff) - zip->stream.avail_out;
580 if (write_to_temp(a, zip->wbuff, bytes) != ARCHIVE_OK)
581 return (ARCHIVE_FATAL);
582 if ((zip->crc32flg & ENCODED_CRC32) && bytes)
583 zip->encoded_crc32 = crc32(zip->encoded_crc32,
591 _7z_write_data(struct archive_write *a, const void *buff, size_t s)
596 zip = (struct _7zip *)a->format_data;
598 if (s > zip->entry_bytes_remaining)
599 s = zip->entry_bytes_remaining;
600 if (s == 0 || zip->cur_file == NULL)
602 bytes = compress_out(a, buff, s, ARCHIVE_Z_RUN);
605 zip->entry_crc32 = crc32(zip->entry_crc32, buff, bytes);
606 zip->entry_bytes_remaining -= bytes;
611 _7z_finish_entry(struct archive_write *a)
617 zip = (struct _7zip *)a->format_data;
618 if (zip->cur_file == NULL)
621 while (zip->entry_bytes_remaining > 0) {
622 s = zip->entry_bytes_remaining;
623 if (s > a->null_length)
625 r = _7z_write_data(a, a->nulls, s);
629 zip->total_bytes_compressed += zip->stream.total_in;
630 zip->total_bytes_uncompressed += zip->stream.total_out;
631 zip->cur_file->crc32 = zip->entry_crc32;
632 zip->cur_file = NULL;
638 flush_wbuff(struct archive_write *a)
644 zip = (struct _7zip *)a->format_data;
645 s = sizeof(zip->wbuff) - zip->wbuff_remaining;
646 r = __archive_write_output(a, zip->wbuff, s);
649 zip->wbuff_remaining = sizeof(zip->wbuff);
654 copy_out(struct archive_write *a, uint64_t offset, uint64_t length)
659 zip = (struct _7zip *)a->format_data;
660 if (zip->temp_offset > 0 &&
661 lseek(zip->temp_fd, offset, SEEK_SET) < 0) {
662 archive_set_error(&(a->archive), errno, "lseek failed");
663 return (ARCHIVE_FATAL);
670 if (length > zip->wbuff_remaining)
671 rsize = zip->wbuff_remaining;
673 rsize = (size_t)length;
674 wb = zip->wbuff + (sizeof(zip->wbuff) - zip->wbuff_remaining);
675 rs = read(zip->temp_fd, wb, rsize);
677 archive_set_error(&(a->archive), errno,
678 "Can't read temporary file(%jd)",
680 return (ARCHIVE_FATAL);
683 archive_set_error(&(a->archive), 0,
684 "Truncated 7-Zip archive");
685 return (ARCHIVE_FATAL);
687 zip->wbuff_remaining -= rs;
689 if (zip->wbuff_remaining == 0) {
699 _7z_close(struct archive_write *a)
703 uint64_t header_offset, header_size, header_unpacksize;
705 uint32_t header_crc32;
708 zip = (struct _7zip *)a->format_data;
710 if (zip->total_number_entry > 0) {
711 struct archive_rb_node *n;
712 uint64_t data_offset, data_size, data_unpacksize;
713 unsigned header_compression;
715 r = (int)compress_out(a, NULL, 0, ARCHIVE_Z_FINISH);
719 data_size = zip->stream.total_out;
720 data_unpacksize = zip->stream.total_in;
721 zip->coder.codec = zip->opt_compression;
722 zip->coder.prop_size = zip->stream.prop_size;
723 zip->coder.props = zip->stream.props;
724 zip->stream.prop_size = 0;
725 zip->stream.props = NULL;
726 zip->total_number_nonempty_entry =
727 zip->total_number_entry - zip->total_number_empty_entry;
729 /* Connect an empty file list. */
730 *zip->file_list.last = zip->empty_list.first;
731 zip->file_list.last = zip->empty_list.last;
732 /* Connect a directory file list. */
733 ARCHIVE_RB_TREE_FOREACH(n, &(zip->rbtree)) {
734 file_register(zip, (struct file *)n);
738 * NOTE: 7z command supports just LZMA1, LZMA2 and COPY for
739 * the compression type for encoding the header.
742 header_compression = _7Z_LZMA1;
743 /* If the stored file is only one, do not encode the header.
744 * This is the same way 7z command does. */
745 if (zip->total_number_entry == 1)
746 header_compression = _7Z_COPY;
748 header_compression = _7Z_COPY;
750 r = _7z_compression_init_encoder(a, header_compression, 6);
753 zip->crc32flg = PRECODE_CRC32;
754 zip->precode_crc32 = 0;
755 r = make_header(a, data_offset, data_size, data_unpacksize,
759 r = (int)compress_out(a, NULL, 0, ARCHIVE_Z_FINISH);
762 header_offset = data_offset + data_size;
763 header_size = zip->stream.total_out;
764 header_crc32 = zip->precode_crc32;
765 header_unpacksize = zip->stream.total_in;
767 if (header_compression != _7Z_COPY) {
769 * Encode the header in order to reduce the size
772 free(zip->coder.props);
773 zip->coder.codec = header_compression;
774 zip->coder.prop_size = zip->stream.prop_size;
775 zip->coder.props = zip->stream.props;
776 zip->stream.prop_size = 0;
777 zip->stream.props = NULL;
779 r = _7z_compression_init_encoder(a, _7Z_COPY, 0);
782 zip->crc32flg = ENCODED_CRC32;
783 zip->encoded_crc32 = 0;
786 * Make EncodedHeader.
788 r = enc_uint64(a, kEncodedHeader);
791 r = make_streamsInfo(a, header_offset, header_size,
792 header_unpacksize, 1, &(zip->coder), 0,
796 r = (int)compress_out(a, NULL, 0, ARCHIVE_Z_FINISH);
799 header_offset = header_offset + header_size;
800 header_size = zip->stream.total_out;
801 header_crc32 = zip->encoded_crc32;
805 header_offset = header_size = 0;
809 length = zip->temp_offset;
812 * Make the zip header on wbuff(write buffer).
815 zip->wbuff_remaining = sizeof(zip->wbuff);
816 memcpy(&wb[0], "7z\xBC\xAF\x27\x1C", 6);
817 wb[6] = 0;/* Major version. */
818 wb[7] = 3;/* Minor version. */
819 archive_le64enc(&wb[12], header_offset);/* Next Header Offset */
820 archive_le64enc(&wb[20], header_size);/* Next Header Size */
821 archive_le32enc(&wb[28], header_crc32);/* Next Header CRC */
822 archive_le32enc(&wb[8], crc32(0, &wb[12], 20));/* Start Header CRC */
823 zip->wbuff_remaining -= 32;
826 * Read all file contents and an encoded header from the temporary
827 * file and write out it.
829 r = copy_out(a, 0, length);
837 * Encode 64 bits value into 7-Zip's encoded UINT64 value.
840 enc_uint64(struct archive_write *a, uint64_t val)
842 unsigned mask = 0x80;
847 for (i = 1; i < sizeof(numdata); i++) {
849 numdata[0] |= (uint8_t)val;
852 numdata[i] = (uint8_t)val;
857 return (compress_out(a, numdata, i, ARCHIVE_Z_RUN));
861 make_substreamsInfo(struct archive_write *a, struct coder *coders)
863 struct _7zip *zip = (struct _7zip *)a->format_data;
868 * Make SubStreamsInfo.
870 r = enc_uint64(a, kSubStreamsInfo);
874 if (zip->total_number_nonempty_entry > 1 && coders->codec != _7Z_COPY) {
876 * Make NumUnPackStream.
878 r = enc_uint64(a, kNumUnPackStream);
882 /* Write numUnpackStreams */
883 r = enc_uint64(a, zip->total_number_nonempty_entry);
890 r = enc_uint64(a, kSize);
893 file = zip->file_list.first;
894 for (;file != NULL; file = file->next) {
895 if (file->next == NULL ||
896 file->next->size == 0)
898 r = enc_uint64(a, file->size);
907 r = enc_uint64(a, kCRC);
912 /* All are defined */
913 r = enc_uint64(a, 1);
916 file = zip->file_list.first;
917 for (;file != NULL; file = file->next) {
921 archive_le32enc(crc, file->crc32);
922 r = compress_out(a, crc, 4, ARCHIVE_Z_RUN);
928 r = enc_uint64(a, kEnd);
935 make_streamsInfo(struct archive_write *a, uint64_t offset, uint64_t pack_size,
936 uint64_t unpack_size, int num_coder, struct coder *coders, int substrm,
939 struct _7zip *zip = (struct _7zip *)a->format_data;
940 uint8_t codec_buff[8];
945 if (coders->codec == _7Z_COPY)
946 numFolders = zip->total_number_nonempty_entry;
953 r = enc_uint64(a, kPackInfo);
958 r = enc_uint64(a, offset);
962 /* Write NumPackStreams. */
963 r = enc_uint64(a, numFolders);
968 r = enc_uint64(a, kSize);
972 if (numFolders > 1) {
973 struct file *file = zip->file_list.first;
974 for (;file != NULL; file = file->next) {
977 r = enc_uint64(a, file->size);
983 r = enc_uint64(a, pack_size);
988 r = enc_uint64(a, kEnd);
995 r = enc_uint64(a, kUnPackInfo);
1002 r = enc_uint64(a, kFolder);
1006 /* Write NumFolders. */
1007 r = enc_uint64(a, numFolders);
1011 /* Write External. */
1012 r = enc_uint64(a, 0);
1016 for (fi = 0; fi < numFolders; fi++) {
1017 /* Write NumCoders. */
1018 r = enc_uint64(a, num_coder);
1022 for (i = 0; i < num_coder; i++) {
1023 unsigned codec_id = coders[i].codec;
1025 /* Write Codec flag. */
1026 archive_be64enc(codec_buff, codec_id);
1027 for (codec_size = 8; codec_size > 0; codec_size--) {
1028 if (codec_buff[8 - codec_size])
1031 if (codec_size == 0)
1033 if (coders[i].prop_size)
1034 r = enc_uint64(a, codec_size | 0x20);
1036 r = enc_uint64(a, codec_size);
1040 /* Write Codec ID. */
1042 r = compress_out(a, &codec_buff[8-codec_size],
1043 codec_size, ARCHIVE_Z_RUN);
1047 if (coders[i].prop_size) {
1048 /* Write Codec property size. */
1049 r = enc_uint64(a, coders[i].prop_size);
1053 /* Write Codec properties. */
1054 r = compress_out(a, coders[i].props,
1055 coders[i].prop_size, ARCHIVE_Z_RUN);
1063 * Make CodersUnPackSize.
1065 r = enc_uint64(a, kCodersUnPackSize);
1069 if (numFolders > 1) {
1070 struct file *file = zip->file_list.first;
1071 for (;file != NULL; file = file->next) {
1072 if (file->size == 0)
1074 r = enc_uint64(a, file->size);
1080 /* Write UnPackSize. */
1081 r = enc_uint64(a, unpack_size);
1091 r = enc_uint64(a, kCRC);
1095 /* All are defined */
1096 r = enc_uint64(a, 1);
1099 archive_le32enc(crc, header_crc);
1100 r = compress_out(a, crc, 4, ARCHIVE_Z_RUN);
1106 r = enc_uint64(a, kEnd);
1112 * Make SubStreamsInfo.
1114 r = make_substreamsInfo(a, coders);
1121 r = enc_uint64(a, kEnd);
1125 return (ARCHIVE_OK);
1129 #define EPOC_TIME ARCHIVE_LITERAL_ULL(116444736000000000)
1131 utcToFiletime(time_t time, long ns)
1136 fileTime *= 10000000;
1137 fileTime += ns / 100;
1138 fileTime += EPOC_TIME;
1143 make_time(struct archive_write *a, uint8_t type, unsigned flg, int ti)
1145 uint8_t filetime[8];
1146 struct _7zip *zip = (struct _7zip *)a->format_data;
1154 if (zip->total_number_time_defined[ti] == zip->total_number_entry) {
1155 /* Write Time Type. */
1156 r = enc_uint64(a, type);
1159 /* Write EmptyStream Size. */
1160 r = enc_uint64(a, 2 + zip->total_number_entry * 8);
1163 /* All are defined. */
1164 r = enc_uint64(a, 1);
1168 if (zip->total_number_time_defined[ti] == 0)
1169 return (ARCHIVE_OK);
1171 /* Write Time Type. */
1172 r = enc_uint64(a, type);
1175 /* Write EmptyStream Size. */
1176 r = enc_uint64(a, 2 + ((zip->total_number_entry + 7) >> 3)
1177 + zip->total_number_time_defined[ti] * 8);
1181 /* All are not defined. */
1182 r = enc_uint64(a, 0);
1188 file = zip->file_list.first;
1189 for (;file != NULL; file = file->next) {
1190 if (file->flg & flg)
1194 r = compress_out(a, &byte, 1, ARCHIVE_Z_RUN);
1202 r = compress_out(a, &byte, 1, ARCHIVE_Z_RUN);
1209 r = enc_uint64(a, 0);
1217 file = zip->file_list.first;
1218 for (;file != NULL; file = file->next) {
1219 if ((file->flg & flg) == 0)
1221 archive_le64enc(filetime, utcToFiletime(file->times[ti].time,
1222 file->times[ti].time_ns));
1223 r = compress_out(a, filetime, 8, ARCHIVE_Z_RUN);
1228 return (ARCHIVE_OK);
1232 make_header(struct archive_write *a, uint64_t offset, uint64_t pack_size,
1233 uint64_t unpack_size, int codernum, struct coder *coders)
1235 struct _7zip *zip = (struct _7zip *)a->format_data;
1243 r = enc_uint64(a, kHeader);
1248 * If there are empty files only, do not write MainStreamInfo.
1250 if (zip->total_number_nonempty_entry) {
1252 * Make MainStreamInfo.
1254 r = enc_uint64(a, kMainStreamsInfo);
1257 r = make_streamsInfo(a, offset, pack_size, unpack_size,
1258 codernum, coders, 1, 0);
1266 r = enc_uint64(a, kFilesInfo);
1270 /* Write numFiles. */
1271 r = enc_uint64(a, zip->total_number_entry);
1275 if (zip->total_number_empty_entry > 0) {
1276 /* Make EmptyStream. */
1277 r = enc_uint64(a, kEmptyStream);
1281 /* Write EmptyStream Size. */
1282 r = enc_uint64(a, (zip->total_number_entry+7)>>3);
1288 file = zip->file_list.first;
1289 for (;file != NULL; file = file->next) {
1290 if (file->size == 0)
1294 r = compress_out(a, &byte, 1, ARCHIVE_Z_RUN);
1302 r = compress_out(a, &byte, 1, ARCHIVE_Z_RUN);
1308 if (zip->total_number_empty_entry > zip->total_number_dir_entry) {
1309 /* Make EmptyFile. */
1310 r = enc_uint64(a, kEmptyFile);
1314 /* Write EmptyFile Size. */
1315 r = enc_uint64(a, (zip->total_number_empty_entry + 7) >> 3);
1321 file = zip->file_list.first;
1322 for (;file != NULL; file = file->next) {
1329 r = compress_out(a, &byte, 1, ARCHIVE_Z_RUN);
1337 r = compress_out(a, &byte, 1, ARCHIVE_Z_RUN);
1344 r = enc_uint64(a, kName);
1348 /* Write Nume size. */
1349 r = enc_uint64(a, zip->total_bytes_entry_name+1);
1353 /* Write dmy byte. */
1354 r = enc_uint64(a, 0);
1358 file = zip->file_list.first;
1359 for (;file != NULL; file = file->next) {
1360 r = compress_out(a, file->utf16name, file->name_len+2,
1367 r = make_time(a, kMTime, MTIME_IS_SET, MTIME);
1372 r = make_time(a, kCTime, CTIME_IS_SET, CTIME);
1377 r = make_time(a, kATime, ATIME_IS_SET, ATIME);
1381 /* Make Attributes. */
1382 r = enc_uint64(a, kAttributes);
1386 /* Write Attributes size. */
1387 r = enc_uint64(a, 2 + zip->total_number_entry * 4);
1391 /* Write "All Are Defined". */
1392 r = enc_uint64(a, 1);
1396 /* Write dmy byte. */
1397 r = enc_uint64(a, 0);
1401 file = zip->file_list.first;
1402 for (;file != NULL; file = file->next) {
1404 * High 16bits is unix mode.
1405 * Low 16bits is Windows attributes.
1407 uint32_t encattr, attr;
1412 if ((file->mode & 0222) == 0)
1413 attr |= 1;/* Read Only. */
1414 attr |= ((uint32_t)file->mode) << 16;
1415 archive_le32enc(&encattr, attr);
1416 r = compress_out(a, &encattr, 4, ARCHIVE_Z_RUN);
1422 r = enc_uint64(a, kEnd);
1427 r = enc_uint64(a, kEnd);
1431 return (ARCHIVE_OK);
1436 _7z_free(struct archive_write *a)
1438 struct _7zip *zip = (struct _7zip *)a->format_data;
1440 file_free_register(zip);
1441 compression_end(&(a->archive), &(zip->stream));
1442 free(zip->coder.props);
1445 return (ARCHIVE_OK);
1449 file_cmp_node(const struct archive_rb_node *n1,
1450 const struct archive_rb_node *n2)
1452 struct file *f1 = (struct file *)n1;
1453 struct file *f2 = (struct file *)n2;
1455 if (f1->name_len == f2->name_len)
1456 return (memcmp(f1->utf16name, f2->utf16name, f1->name_len));
1457 return (f1->name_len > f2->name_len)?1:-1;
1461 file_cmp_key(const struct archive_rb_node *n, const void *key)
1463 struct file *f = (struct file *)n;
1465 return (f->name_len - *(const char *)key);
1469 file_new(struct archive_write *a, struct archive_entry *entry,
1470 struct file **newfile)
1476 int ret = ARCHIVE_OK;
1478 zip = (struct _7zip *)a->format_data;
1481 file = calloc(1, sizeof(*file));
1483 archive_set_error(&a->archive, ENOMEM,
1484 "Can't allocate memory");
1485 return (ARCHIVE_FATAL);
1488 if (0 > archive_entry_pathname_l(entry, &u16, &u16len, zip->sconv)) {
1489 if (errno == ENOMEM) {
1490 archive_set_error(&a->archive, ENOMEM,
1491 "Can't allocate memory for UTF-16LE");
1492 return (ARCHIVE_FATAL);
1494 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
1495 "A filename cannot be converted to UTF-16LE;"
1496 "You should disable making Joliet extension");
1499 file->utf16name = malloc(u16len + 2);
1500 if (file->utf16name == NULL) {
1501 archive_set_error(&a->archive, ENOMEM,
1502 "Can't allocate memory for Name");
1503 return (ARCHIVE_FATAL);
1505 memcpy(file->utf16name, u16, u16len);
1506 file->utf16name[u16len+0] = 0;
1507 file->utf16name[u16len+1] = 0;
1508 file->name_len = u16len;
1509 file->mode = archive_entry_mode(entry);
1510 if (archive_entry_filetype(entry) == AE_IFREG)
1511 file->size = archive_entry_size(entry);
1513 archive_entry_set_size(entry, 0);
1514 if (archive_entry_filetype(entry) == AE_IFDIR)
1516 else if (archive_entry_filetype(entry) == AE_IFLNK)
1517 file->size = strlen(archive_entry_symlink(entry));
1518 if (archive_entry_mtime_is_set(entry)) {
1519 file->flg |= MTIME_IS_SET;
1520 file->times[MTIME].time = archive_entry_mtime(entry);
1521 file->times[MTIME].time_ns = archive_entry_mtime_nsec(entry);
1523 if (archive_entry_atime_is_set(entry)) {
1524 file->flg |= ATIME_IS_SET;
1525 file->times[ATIME].time = archive_entry_atime(entry);
1526 file->times[ATIME].time_ns = archive_entry_atime_nsec(entry);
1528 if (archive_entry_ctime_is_set(entry)) {
1529 file->flg |= CTIME_IS_SET;
1530 file->times[CTIME].time = archive_entry_ctime(entry);
1531 file->times[CTIME].time_ns = archive_entry_ctime_nsec(entry);
1539 file_free(struct file *file)
1541 free(file->utf16name);
1546 file_register(struct _7zip *zip, struct file *file)
1549 *zip->file_list.last = file;
1550 zip->file_list.last = &(file->next);
1554 file_init_register(struct _7zip *zip)
1556 zip->file_list.first = NULL;
1557 zip->file_list.last = &(zip->file_list.first);
1561 file_free_register(struct _7zip *zip)
1563 struct file *file, *file_next;
1565 file = zip->file_list.first;
1566 while (file != NULL) {
1567 file_next = file->next;
1574 file_register_empty(struct _7zip *zip, struct file *file)
1577 *zip->empty_list.last = file;
1578 zip->empty_list.last = &(file->next);
1582 file_init_register_empty(struct _7zip *zip)
1584 zip->empty_list.first = NULL;
1585 zip->empty_list.last = &(zip->empty_list.first);
1588 #if !defined(HAVE_BZLIB_H) || !defined(BZ_CONFIG_ERROR) || !defined(HAVE_LZMA_H)
1590 compression_unsupported_encoder(struct archive *a,
1591 struct la_zstream *lastrm, const char *name)
1594 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1595 "%s compression not supported on this platform", name);
1597 lastrm->real_stream = NULL;
1598 return (ARCHIVE_FAILED);
1603 * _7_COPY compressor.
1606 compression_init_encoder_copy(struct archive *a, struct la_zstream *lastrm)
1610 compression_end(a, lastrm);
1612 lastrm->code = compression_code_copy;
1613 lastrm->end = compression_end_copy;
1614 return (ARCHIVE_OK);
1618 compression_code_copy(struct archive *a,
1619 struct la_zstream *lastrm, enum la_zaction action)
1623 (void)a; /* UNUSED */
1624 if (lastrm->avail_out > lastrm->avail_in)
1625 bytes = lastrm->avail_in;
1627 bytes = lastrm->avail_out;
1629 memcpy(lastrm->next_out, lastrm->next_in, bytes);
1630 lastrm->next_in += bytes;
1631 lastrm->avail_in -= bytes;
1632 lastrm->total_in += bytes;
1633 lastrm->next_out += bytes;
1634 lastrm->avail_out -= bytes;
1635 lastrm->total_out += bytes;
1637 if (action == ARCHIVE_Z_FINISH && lastrm->avail_in == 0)
1638 return (ARCHIVE_EOF);
1639 return (ARCHIVE_OK);
1643 compression_end_copy(struct archive *a, struct la_zstream *lastrm)
1645 (void)a; /* UNUSED */
1647 return (ARCHIVE_OK);
1651 * _7_DEFLATE compressor.
1655 compression_init_encoder_deflate(struct archive *a,
1656 struct la_zstream *lastrm, int level, int withheader)
1661 compression_end(a, lastrm);
1662 strm = calloc(1, sizeof(*strm));
1664 archive_set_error(a, ENOMEM,
1665 "Can't allocate memory for gzip stream");
1666 return (ARCHIVE_FATAL);
1668 /* zlib.h is not const-correct, so we need this one bit
1669 * of ugly hackery to convert a const * pointer to
1670 * a non-const pointer. */
1671 strm->next_in = (Bytef *)(uintptr_t)(const void *)lastrm->next_in;
1672 strm->avail_in = lastrm->avail_in;
1673 strm->total_in = lastrm->total_in;
1674 strm->next_out = lastrm->next_out;
1675 strm->avail_out = lastrm->avail_out;
1676 strm->total_out = lastrm->total_out;
1677 if (deflateInit2(strm, level, Z_DEFLATED,
1678 (withheader)?15:-15,
1679 8, Z_DEFAULT_STRATEGY) != Z_OK) {
1681 lastrm->real_stream = NULL;
1682 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1683 "Internal error initializing compression library");
1684 return (ARCHIVE_FATAL);
1686 lastrm->real_stream = strm;
1688 lastrm->code = compression_code_deflate;
1689 lastrm->end = compression_end_deflate;
1690 return (ARCHIVE_OK);
1694 compression_code_deflate(struct archive *a,
1695 struct la_zstream *lastrm, enum la_zaction action)
1700 strm = (z_stream *)lastrm->real_stream;
1701 /* zlib.h is not const-correct, so we need this one bit
1702 * of ugly hackery to convert a const * pointer to
1703 * a non-const pointer. */
1704 strm->next_in = (Bytef *)(uintptr_t)(const void *)lastrm->next_in;
1705 strm->avail_in = lastrm->avail_in;
1706 strm->total_in = lastrm->total_in;
1707 strm->next_out = lastrm->next_out;
1708 strm->avail_out = lastrm->avail_out;
1709 strm->total_out = lastrm->total_out;
1711 (action == ARCHIVE_Z_FINISH)? Z_FINISH: Z_NO_FLUSH);
1712 lastrm->next_in = strm->next_in;
1713 lastrm->avail_in = strm->avail_in;
1714 lastrm->total_in = strm->total_in;
1715 lastrm->next_out = strm->next_out;
1716 lastrm->avail_out = strm->avail_out;
1717 lastrm->total_out = strm->total_out;
1720 return (ARCHIVE_OK);
1722 return (ARCHIVE_EOF);
1724 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1725 "GZip compression failed:"
1726 " deflate() call returned status %d", r);
1727 return (ARCHIVE_FATAL);
1732 compression_end_deflate(struct archive *a, struct la_zstream *lastrm)
1737 strm = (z_stream *)lastrm->real_stream;
1738 r = deflateEnd(strm);
1740 lastrm->real_stream = NULL;
1743 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1744 "Failed to clean up compressor");
1745 return (ARCHIVE_FATAL);
1747 return (ARCHIVE_OK);
1751 compression_init_encoder_deflate(struct archive *a,
1752 struct la_zstream *lastrm, int level, int withheader)
1755 (void) level; /* UNUSED */
1756 (void) withheader; /* UNUSED */
1758 compression_end(a, lastrm);
1759 return (compression_unsupported_encoder(a, lastrm, "deflate"));
1764 * _7_BZIP2 compressor.
1766 #if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR)
1768 compression_init_encoder_bzip2(struct archive *a,
1769 struct la_zstream *lastrm, int level)
1774 compression_end(a, lastrm);
1775 strm = calloc(1, sizeof(*strm));
1777 archive_set_error(a, ENOMEM,
1778 "Can't allocate memory for bzip2 stream");
1779 return (ARCHIVE_FATAL);
1781 /* bzlib.h is not const-correct, so we need this one bit
1782 * of ugly hackery to convert a const * pointer to
1783 * a non-const pointer. */
1784 strm->next_in = (char *)(uintptr_t)(const void *)lastrm->next_in;
1785 strm->avail_in = lastrm->avail_in;
1786 strm->total_in_lo32 = (uint32_t)(lastrm->total_in & 0xffffffff);
1787 strm->total_in_hi32 = (uint32_t)(lastrm->total_in >> 32);
1788 strm->next_out = (char *)lastrm->next_out;
1789 strm->avail_out = lastrm->avail_out;
1790 strm->total_out_lo32 = (uint32_t)(lastrm->total_out & 0xffffffff);
1791 strm->total_out_hi32 = (uint32_t)(lastrm->total_out >> 32);
1792 if (BZ2_bzCompressInit(strm, level, 0, 30) != BZ_OK) {
1794 lastrm->real_stream = NULL;
1795 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1796 "Internal error initializing compression library");
1797 return (ARCHIVE_FATAL);
1799 lastrm->real_stream = strm;
1801 lastrm->code = compression_code_bzip2;
1802 lastrm->end = compression_end_bzip2;
1803 return (ARCHIVE_OK);
1807 compression_code_bzip2(struct archive *a,
1808 struct la_zstream *lastrm, enum la_zaction action)
1813 strm = (bz_stream *)lastrm->real_stream;
1814 /* bzlib.h is not const-correct, so we need this one bit
1815 * of ugly hackery to convert a const * pointer to
1816 * a non-const pointer. */
1817 strm->next_in = (char *)(uintptr_t)(const void *)lastrm->next_in;
1818 strm->avail_in = lastrm->avail_in;
1819 strm->total_in_lo32 = (uint32_t)(lastrm->total_in & 0xffffffff);
1820 strm->total_in_hi32 = (uint32_t)(lastrm->total_in >> 32);
1821 strm->next_out = (char *)lastrm->next_out;
1822 strm->avail_out = lastrm->avail_out;
1823 strm->total_out_lo32 = (uint32_t)(lastrm->total_out & 0xffffffff);
1824 strm->total_out_hi32 = (uint32_t)(lastrm->total_out >> 32);
1825 r = BZ2_bzCompress(strm,
1826 (action == ARCHIVE_Z_FINISH)? BZ_FINISH: BZ_RUN);
1827 lastrm->next_in = (const unsigned char *)strm->next_in;
1828 lastrm->avail_in = strm->avail_in;
1830 (((uint64_t)(uint32_t)strm->total_in_hi32) << 32)
1831 + (uint64_t)(uint32_t)strm->total_in_lo32;
1832 lastrm->next_out = (unsigned char *)strm->next_out;
1833 lastrm->avail_out = strm->avail_out;
1835 (((uint64_t)(uint32_t)strm->total_out_hi32) << 32)
1836 + (uint64_t)(uint32_t)strm->total_out_lo32;
1838 case BZ_RUN_OK: /* Non-finishing */
1839 case BZ_FINISH_OK: /* Finishing: There's more work to do */
1840 return (ARCHIVE_OK);
1841 case BZ_STREAM_END: /* Finishing: all done */
1842 /* Only occurs in finishing case */
1843 return (ARCHIVE_EOF);
1845 /* Any other return value indicates an error */
1846 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1847 "Bzip2 compression failed:"
1848 " BZ2_bzCompress() call returned status %d", r);
1849 return (ARCHIVE_FATAL);
1854 compression_end_bzip2(struct archive *a, struct la_zstream *lastrm)
1859 strm = (bz_stream *)lastrm->real_stream;
1860 r = BZ2_bzCompressEnd(strm);
1862 lastrm->real_stream = NULL;
1865 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1866 "Failed to clean up compressor");
1867 return (ARCHIVE_FATAL);
1869 return (ARCHIVE_OK);
1874 compression_init_encoder_bzip2(struct archive *a,
1875 struct la_zstream *lastrm, int level)
1878 (void) level; /* UNUSED */
1880 compression_end(a, lastrm);
1881 return (compression_unsupported_encoder(a, lastrm, "bzip2"));
1886 * _7_LZMA1, _7_LZMA2 compressor.
1888 #if defined(HAVE_LZMA_H)
1890 compression_init_encoder_lzma(struct archive *a,
1891 struct la_zstream *lastrm, int level, uint64_t filter_id)
1893 static const lzma_stream lzma_init_data = LZMA_STREAM_INIT;
1895 lzma_filter *lzmafilters;
1896 lzma_options_lzma lzma_opt;
1900 compression_end(a, lastrm);
1901 strm = calloc(1, sizeof(*strm) + sizeof(*lzmafilters) * 2);
1903 archive_set_error(a, ENOMEM,
1904 "Can't allocate memory for lzma stream");
1905 return (ARCHIVE_FATAL);
1907 lzmafilters = (lzma_filter *)(strm+1);
1910 if (lzma_lzma_preset(&lzma_opt, level)) {
1911 lastrm->real_stream = NULL;
1912 archive_set_error(a, ENOMEM,
1913 "Internal error initializing compression library");
1914 return (ARCHIVE_FATAL);
1916 lzmafilters[0].id = filter_id;
1917 lzmafilters[0].options = &lzma_opt;
1918 lzmafilters[1].id = LZMA_VLI_UNKNOWN;/* Terminate */
1920 r = lzma_properties_size(&(lastrm->prop_size), lzmafilters);
1923 lastrm->real_stream = NULL;
1924 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1925 "lzma_properties_size failed");
1926 return (ARCHIVE_FATAL);
1928 if (lastrm->prop_size) {
1929 lastrm->props = malloc(lastrm->prop_size);
1930 if (lastrm->props == NULL) {
1932 lastrm->real_stream = NULL;
1933 archive_set_error(a, ENOMEM,
1934 "Cannot allocate memory");
1935 return (ARCHIVE_FATAL);
1937 r = lzma_properties_encode(lzmafilters, lastrm->props);
1940 lastrm->real_stream = NULL;
1941 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1942 "lzma_properties_encode failed");
1943 return (ARCHIVE_FATAL);
1947 *strm = lzma_init_data;
1948 r = lzma_raw_encoder(strm, lzmafilters);
1951 lastrm->real_stream = strm;
1953 lastrm->code = compression_code_lzma;
1954 lastrm->end = compression_end_lzma;
1957 case LZMA_MEM_ERROR:
1959 lastrm->real_stream = NULL;
1960 archive_set_error(a, ENOMEM,
1961 "Internal error initializing compression library: "
1962 "Cannot allocate memory");
1967 lastrm->real_stream = NULL;
1968 archive_set_error(a, ARCHIVE_ERRNO_MISC,
1969 "Internal error initializing compression library: "
1970 "It's a bug in liblzma");
1978 compression_init_encoder_lzma1(struct archive *a,
1979 struct la_zstream *lastrm, int level)
1981 return compression_init_encoder_lzma(a, lastrm, level,
1986 compression_init_encoder_lzma2(struct archive *a,
1987 struct la_zstream *lastrm, int level)
1989 return compression_init_encoder_lzma(a, lastrm, level,
1994 compression_code_lzma(struct archive *a,
1995 struct la_zstream *lastrm, enum la_zaction action)
2000 strm = (lzma_stream *)lastrm->real_stream;
2001 strm->next_in = lastrm->next_in;
2002 strm->avail_in = lastrm->avail_in;
2003 strm->total_in = lastrm->total_in;
2004 strm->next_out = lastrm->next_out;
2005 strm->avail_out = lastrm->avail_out;
2006 strm->total_out = lastrm->total_out;
2008 (action == ARCHIVE_Z_FINISH)? LZMA_FINISH: LZMA_RUN);
2009 lastrm->next_in = strm->next_in;
2010 lastrm->avail_in = strm->avail_in;
2011 lastrm->total_in = strm->total_in;
2012 lastrm->next_out = strm->next_out;
2013 lastrm->avail_out = strm->avail_out;
2014 lastrm->total_out = strm->total_out;
2017 /* Non-finishing case */
2018 return (ARCHIVE_OK);
2019 case LZMA_STREAM_END:
2020 /* This return can only occur in finishing case. */
2021 return (ARCHIVE_EOF);
2022 case LZMA_MEMLIMIT_ERROR:
2023 archive_set_error(a, ENOMEM,
2024 "lzma compression error:"
2025 " %ju MiB would have been needed",
2026 (uintmax_t)((lzma_memusage(strm) + 1024 * 1024 -1)
2028 return (ARCHIVE_FATAL);
2030 /* Any other return value indicates an error */
2031 archive_set_error(a, ARCHIVE_ERRNO_MISC,
2032 "lzma compression failed:"
2033 " lzma_code() call returned status %d", r);
2034 return (ARCHIVE_FATAL);
2039 compression_end_lzma(struct archive *a, struct la_zstream *lastrm)
2043 (void)a; /* UNUSED */
2044 strm = (lzma_stream *)lastrm->real_stream;
2048 lastrm->real_stream = NULL;
2049 return (ARCHIVE_OK);
2053 compression_init_encoder_lzma1(struct archive *a,
2054 struct la_zstream *lastrm, int level)
2057 (void) level; /* UNUSED */
2059 compression_end(a, lastrm);
2060 return (compression_unsupported_encoder(a, lastrm, "lzma"));
2063 compression_init_encoder_lzma2(struct archive *a,
2064 struct la_zstream *lastrm, int level)
2067 (void) level; /* UNUSED */
2069 compression_end(a, lastrm);
2070 return (compression_unsupported_encoder(a, lastrm, "lzma"));
2075 * _7_PPMD compressor.
2078 ppmd_alloc(void *p, size_t size)
2081 return malloc(size);
2084 ppmd_free(void *p, void *address)
2089 static ISzAlloc g_szalloc = { ppmd_alloc, ppmd_free };
2091 ppmd_write(void *p, Byte b)
2093 struct archive_write *a = ((IByteOut *)p)->a;
2094 struct _7zip *zip = (struct _7zip *)(a->format_data);
2095 struct la_zstream *lastrm = &(zip->stream);
2096 struct ppmd_stream *strm;
2098 if (lastrm->avail_out) {
2099 *lastrm->next_out++ = b;
2100 lastrm->avail_out--;
2101 lastrm->total_out++;
2104 strm = (struct ppmd_stream *)lastrm->real_stream;
2105 if (strm->buff_ptr < strm->buff_end) {
2106 *strm->buff_ptr++ = b;
2112 compression_init_encoder_ppmd(struct archive *a,
2113 struct la_zstream *lastrm, unsigned maxOrder, uint32_t msize)
2115 struct ppmd_stream *strm;
2120 compression_end(a, lastrm);
2121 strm = calloc(1, sizeof(*strm));
2123 archive_set_error(a, ENOMEM,
2124 "Can't allocate memory for PPMd");
2125 return (ARCHIVE_FATAL);
2127 strm->buff = malloc(32);
2128 if (strm->buff == NULL) {
2130 archive_set_error(a, ENOMEM,
2131 "Can't allocate memory for PPMd");
2132 return (ARCHIVE_FATAL);
2134 strm->buff_ptr = strm->buff;
2135 strm->buff_end = strm->buff + 32;
2137 props = malloc(1+4);
2138 if (props == NULL) {
2141 archive_set_error(a, ENOMEM,
2142 "Coludn't allocate memory for PPMd");
2143 return (ARCHIVE_FATAL);
2145 props[0] = maxOrder;
2146 archive_le32enc(props+1, msize);
2147 __archive_ppmd7_functions.Ppmd7_Construct(&strm->ppmd7_context);
2148 r = __archive_ppmd7_functions.Ppmd7_Alloc(
2149 &strm->ppmd7_context, msize, &g_szalloc);
2154 archive_set_error(a, ENOMEM,
2155 "Coludn't allocate memory for PPMd");
2156 return (ARCHIVE_FATAL);
2158 __archive_ppmd7_functions.Ppmd7_Init(&(strm->ppmd7_context), maxOrder);
2159 strm->byteout.a = (struct archive_write *)a;
2160 strm->byteout.Write = ppmd_write;
2161 strm->range_enc.Stream = &(strm->byteout);
2162 __archive_ppmd7_functions.Ppmd7z_RangeEnc_Init(&(strm->range_enc));
2165 lastrm->real_stream = strm;
2167 lastrm->code = compression_code_ppmd;
2168 lastrm->end = compression_end_ppmd;
2169 lastrm->prop_size = 5;
2170 lastrm->props = props;
2171 return (ARCHIVE_OK);
2175 compression_code_ppmd(struct archive *a,
2176 struct la_zstream *lastrm, enum la_zaction action)
2178 struct ppmd_stream *strm;
2180 strm = (struct ppmd_stream *)lastrm->real_stream;
2182 /* Copy encoded data if there are remaining bytes from previous call. */
2183 if (strm->buff_bytes) {
2184 uint8_t *p = strm->buff_ptr - strm->buff_bytes;
2185 while (lastrm->avail_out && strm->buff_bytes) {
2186 *lastrm->next_out++ = *p++;
2187 lastrm->avail_out--;
2188 lastrm->total_out++;
2191 if (strm->buff_bytes)
2192 return (ARCHIVE_OK);
2193 if (strm->stat == 1)
2194 return (ARCHIVE_EOF);
2195 strm->buff_ptr = strm->buff;
2197 while (lastrm->avail_in && lastrm->avail_out) {
2198 __archive_ppmd7_functions.Ppmd7_EncodeSymbol(
2199 &(strm->ppmd7_context), &(strm->range_enc),
2200 *lastrm->next_in++);
2204 if (lastrm->avail_in == 0 && action == ARCHIVE_Z_FINISH) {
2205 __archive_ppmd7_functions.Ppmd7z_RangeEnc_FlushData(
2206 &(strm->range_enc));
2208 /* Return EOF if there are no remaining bytes. */
2209 if (strm->buff_bytes == 0)
2210 return (ARCHIVE_EOF);
2212 return (ARCHIVE_OK);
2216 compression_end_ppmd(struct archive *a, struct la_zstream *lastrm)
2218 struct ppmd_stream *strm;
2220 strm = (struct ppmd_stream *)lastrm->real_stream;
2221 __archive_ppmd7_functions.Ppmd7_Free(&strm->ppmd7_context, &g_szalloc);
2224 lastrm->real_stream = NULL;
2226 return (ARCHIVE_OK);
2230 * Universal compressor initializer.
2233 _7z_compression_init_encoder(struct archive_write *a, unsigned compression,
2234 int compression_level)
2239 zip = (struct _7zip *)a->format_data;
2240 switch (compression) {
2242 r = compression_init_encoder_deflate(
2243 &(a->archive), &(zip->stream),
2244 compression_level, 0);
2247 r = compression_init_encoder_bzip2(
2248 &(a->archive), &(zip->stream),
2252 r = compression_init_encoder_lzma1(
2253 &(a->archive), &(zip->stream),
2257 r = compression_init_encoder_lzma2(
2258 &(a->archive), &(zip->stream),
2262 r = compression_init_encoder_ppmd(
2263 &(a->archive), &(zip->stream),
2264 PPMD7_DEFAULT_ORDER, PPMD7_DEFAULT_MEM_SIZE);
2268 r = compression_init_encoder_copy(
2269 &(a->archive), &(zip->stream));
2272 if (r == ARCHIVE_OK) {
2273 zip->stream.total_in = 0;
2274 zip->stream.next_out = zip->wbuff;
2275 zip->stream.avail_out = sizeof(zip->wbuff);
2276 zip->stream.total_out = 0;
2283 compression_code(struct archive *a, struct la_zstream *lastrm,
2284 enum la_zaction action)
2287 return (lastrm->code(a, lastrm, action));
2288 return (ARCHIVE_OK);
2292 compression_end(struct archive *a, struct la_zstream *lastrm)
2294 if (lastrm->valid) {
2295 lastrm->prop_size = 0;
2296 free(lastrm->props);
2297 lastrm->props = NULL;
2298 return (lastrm->end(a, lastrm));
2300 return (ARCHIVE_OK);