1 /*- 2 * Copyright (c) 2009 Michihiro NAKAJIMA 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 13 * 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. 24 */ 25 #include "archive_platform.h" 26 __FBSDID("$FreeBSD$"); 27 28 #ifdef HAVE_ERRNO_H 29 #include <errno.h> 30 #endif 31 #ifdef HAVE_STDLIB_H 32 #include <stdlib.h> 33 #endif 34 #if HAVE_LIBXML_XMLREADER_H 35 #include <libxml/xmlreader.h> 36 #elif HAVE_BSDXML_H 37 #include <bsdxml.h> 38 #elif HAVE_EXPAT_H 39 #include <expat.h> 40 #endif 41 #ifdef HAVE_BZLIB_H 42 #include <bzlib.h> 43 #endif 44 #if HAVE_LZMA_H 45 #include <lzma.h> 46 #endif 47 #ifdef HAVE_ZLIB_H 48 #include <zlib.h> 49 #endif 50 51 #include "archive.h" 52 #include "archive_digest_private.h" 53 #include "archive_endian.h" 54 #include "archive_entry.h" 55 #include "archive_entry_locale.h" 56 #include "archive_private.h" 57 #include "archive_read_private.h" 58 59 #if (!defined(HAVE_LIBXML_XMLREADER_H) && \ 60 !defined(HAVE_BSDXML_H) && !defined(HAVE_EXPAT_H)) ||\ 61 !defined(HAVE_ZLIB_H) || \ 62 !defined(ARCHIVE_HAS_MD5) || !defined(ARCHIVE_HAS_SHA1) 63 /* 64 * xar needs several external libraries. 65 * o libxml2 or expat --- XML parser 66 * o openssl or MD5/SHA1 hash function 67 * o zlib 68 * o bzlib2 (option) 69 * o liblzma (option) 70 */ 71 int 72 archive_read_support_format_xar(struct archive *_a) 73 { 74 struct archive_read *a = (struct archive_read *)_a; 75 archive_check_magic(_a, ARCHIVE_READ_MAGIC, 76 ARCHIVE_STATE_NEW, "archive_read_support_format_xar"); 77 78 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 79 "Xar not supported on this platform"); 80 return (ARCHIVE_WARN); 81 } 82 83 #else /* Support xar format */ 84 85 /* #define DEBUG 1 */ 86 /* #define DEBUG_PRINT_TOC 1 */ 87 #if DEBUG_PRINT_TOC 88 #define PRINT_TOC(d, outbytes) do { \ 89 unsigned char *x = (unsigned char *)(uintptr_t)d; \ 90 unsigned char c = x[outbytes-1]; \ 91 x[outbytes - 1] = 0; \ 92 fprintf(stderr, "%s", x); \ 93 fprintf(stderr, "%c", c); \ 94 x[outbytes - 1] = c; \ 95 } while (0) 96 #else 97 #define PRINT_TOC(d, outbytes) 98 #endif 99 100 #define HEADER_MAGIC 0x78617221 101 #define HEADER_SIZE 28 102 #define HEADER_VERSION 1 103 #define CKSUM_NONE 0 104 #define CKSUM_SHA1 1 105 #define CKSUM_MD5 2 106 107 #define MD5_SIZE 16 108 #define SHA1_SIZE 20 109 #define MAX_SUM_SIZE 20 110 111 enum enctype { 112 NONE, 113 GZIP, 114 BZIP2, 115 LZMA, 116 XZ, 117 }; 118 119 struct chksumval { 120 int alg; 121 size_t len; 122 unsigned char val[MAX_SUM_SIZE]; 123 }; 124 125 struct chksumwork { 126 int alg; 127 #ifdef ARCHIVE_HAS_MD5 128 archive_md5_ctx md5ctx; 129 #endif 130 #ifdef ARCHIVE_HAS_SHA1 131 archive_sha1_ctx sha1ctx; 132 #endif 133 }; 134 135 struct xattr { 136 struct xattr *next; 137 struct archive_string name; 138 uint64_t id; 139 uint64_t length; 140 uint64_t offset; 141 uint64_t size; 142 enum enctype encoding; 143 struct chksumval a_sum; 144 struct chksumval e_sum; 145 struct archive_string fstype; 146 }; 147 148 struct xar_file { 149 struct xar_file *next; 150 struct xar_file *hdnext; 151 struct xar_file *parent; 152 int subdirs; 153 154 unsigned int has; 155 #define HAS_DATA 0x00001 156 #define HAS_PATHNAME 0x00002 157 #define HAS_SYMLINK 0x00004 158 #define HAS_TIME 0x00008 159 #define HAS_UID 0x00010 160 #define HAS_GID 0x00020 161 #define HAS_MODE 0x00040 162 #define HAS_TYPE 0x00080 163 #define HAS_DEV 0x00100 164 #define HAS_DEVMAJOR 0x00200 165 #define HAS_DEVMINOR 0x00400 166 #define HAS_INO 0x00800 167 #define HAS_FFLAGS 0x01000 168 #define HAS_XATTR 0x02000 169 #define HAS_ACL 0x04000 170 #define HAS_CTIME 0x08000 171 #define HAS_MTIME 0x10000 172 #define HAS_ATIME 0x20000 173 174 uint64_t id; 175 uint64_t length; 176 uint64_t offset; 177 uint64_t size; 178 enum enctype encoding; 179 struct chksumval a_sum; 180 struct chksumval e_sum; 181 struct archive_string pathname; 182 struct archive_string symlink; 183 time_t ctime; 184 time_t mtime; 185 time_t atime; 186 struct archive_string uname; 187 int64_t uid; 188 struct archive_string gname; 189 int64_t gid; 190 mode_t mode; 191 dev_t dev; 192 dev_t devmajor; 193 dev_t devminor; 194 int64_t ino64; 195 struct archive_string fflags_text; 196 unsigned int link; 197 unsigned int nlink; 198 struct archive_string hardlink; 199 struct xattr *xattr_list; 200 }; 201 202 struct hdlink { 203 struct hdlink *next; 204 205 unsigned int id; 206 int cnt; 207 struct xar_file *files; 208 }; 209 210 struct heap_queue { 211 struct xar_file **files; 212 int allocated; 213 int used; 214 }; 215 216 enum xmlstatus { 217 INIT, 218 XAR, 219 TOC, 220 TOC_CREATION_TIME, 221 TOC_CHECKSUM, 222 TOC_CHECKSUM_OFFSET, 223 TOC_CHECKSUM_SIZE, 224 TOC_FILE, 225 FILE_DATA, 226 FILE_DATA_LENGTH, 227 FILE_DATA_OFFSET, 228 FILE_DATA_SIZE, 229 FILE_DATA_ENCODING, 230 FILE_DATA_A_CHECKSUM, 231 FILE_DATA_E_CHECKSUM, 232 FILE_DATA_CONTENT, 233 FILE_EA, 234 FILE_EA_LENGTH, 235 FILE_EA_OFFSET, 236 FILE_EA_SIZE, 237 FILE_EA_ENCODING, 238 FILE_EA_A_CHECKSUM, 239 FILE_EA_E_CHECKSUM, 240 FILE_EA_NAME, 241 FILE_EA_FSTYPE, 242 FILE_CTIME, 243 FILE_MTIME, 244 FILE_ATIME, 245 FILE_GROUP, 246 FILE_GID, 247 FILE_USER, 248 FILE_UID, 249 FILE_MODE, 250 FILE_DEVICE, 251 FILE_DEVICE_MAJOR, 252 FILE_DEVICE_MINOR, 253 FILE_DEVICENO, 254 FILE_INODE, 255 FILE_LINK, 256 FILE_TYPE, 257 FILE_NAME, 258 FILE_ACL, 259 FILE_ACL_DEFAULT, 260 FILE_ACL_ACCESS, 261 FILE_ACL_APPLEEXTENDED, 262 /* BSD file flags. */ 263 FILE_FLAGS, 264 FILE_FLAGS_USER_NODUMP, 265 FILE_FLAGS_USER_IMMUTABLE, 266 FILE_FLAGS_USER_APPEND, 267 FILE_FLAGS_USER_OPAQUE, 268 FILE_FLAGS_USER_NOUNLINK, 269 FILE_FLAGS_SYS_ARCHIVED, 270 FILE_FLAGS_SYS_IMMUTABLE, 271 FILE_FLAGS_SYS_APPEND, 272 FILE_FLAGS_SYS_NOUNLINK, 273 FILE_FLAGS_SYS_SNAPSHOT, 274 /* Linux file flags. */ 275 FILE_EXT2, 276 FILE_EXT2_SecureDeletion, 277 FILE_EXT2_Undelete, 278 FILE_EXT2_Compress, 279 FILE_EXT2_Synchronous, 280 FILE_EXT2_Immutable, 281 FILE_EXT2_AppendOnly, 282 FILE_EXT2_NoDump, 283 FILE_EXT2_NoAtime, 284 FILE_EXT2_CompDirty, 285 FILE_EXT2_CompBlock, 286 FILE_EXT2_NoCompBlock, 287 FILE_EXT2_CompError, 288 FILE_EXT2_BTree, 289 FILE_EXT2_HashIndexed, 290 FILE_EXT2_iMagic, 291 FILE_EXT2_Journaled, 292 FILE_EXT2_NoTail, 293 FILE_EXT2_DirSync, 294 FILE_EXT2_TopDir, 295 FILE_EXT2_Reserved, 296 UNKNOWN, 297 }; 298 299 struct unknown_tag { 300 struct unknown_tag *next; 301 struct archive_string name; 302 }; 303 304 struct xar { 305 uint64_t offset; /* Current position in the file. */ 306 int64_t total; 307 uint64_t h_base; 308 int end_of_file; 309 #define OUTBUFF_SIZE (1024 * 64) 310 unsigned char *outbuff; 311 312 enum xmlstatus xmlsts; 313 enum xmlstatus xmlsts_unknown; 314 struct unknown_tag *unknowntags; 315 int base64text; 316 317 /* 318 * TOC 319 */ 320 uint64_t toc_remaining; 321 uint64_t toc_total; 322 uint64_t toc_chksum_offset; 323 uint64_t toc_chksum_size; 324 325 /* 326 * For Decoding data. 327 */ 328 enum enctype rd_encoding; 329 z_stream stream; 330 int stream_valid; 331 #if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR) 332 bz_stream bzstream; 333 int bzstream_valid; 334 #endif 335 #if HAVE_LZMA_H && HAVE_LIBLZMA 336 lzma_stream lzstream; 337 int lzstream_valid; 338 #endif 339 /* 340 * For Checksum data. 341 */ 342 struct chksumwork a_sumwrk; 343 struct chksumwork e_sumwrk; 344 345 struct xar_file *file; /* current reading file. */ 346 struct xattr *xattr; /* current reading extended attribute. */ 347 struct heap_queue file_queue; 348 struct xar_file *hdlink_orgs; 349 struct hdlink *hdlink_list; 350 351 int entry_init; 352 uint64_t entry_total; 353 uint64_t entry_remaining; 354 size_t entry_unconsumed; 355 uint64_t entry_size; 356 enum enctype entry_encoding; 357 struct chksumval entry_a_sum; 358 struct chksumval entry_e_sum; 359 360 struct archive_string_conv *sconv; 361 }; 362 363 struct xmlattr { 364 struct xmlattr *next; 365 char *name; 366 char *value; 367 }; 368 369 struct xmlattr_list { 370 struct xmlattr *first; 371 struct xmlattr **last; 372 }; 373 374 static int xar_bid(struct archive_read *, int); 375 static int xar_read_header(struct archive_read *, 376 struct archive_entry *); 377 static int xar_read_data(struct archive_read *, 378 const void **, size_t *, int64_t *); 379 static int xar_read_data_skip(struct archive_read *); 380 static int xar_cleanup(struct archive_read *); 381 static int move_reading_point(struct archive_read *, uint64_t); 382 static int rd_contents_init(struct archive_read *, 383 enum enctype, int, int); 384 static int rd_contents(struct archive_read *, const void **, 385 size_t *, size_t *, uint64_t); 386 static uint64_t atol10(const char *, size_t); 387 static int64_t atol8(const char *, size_t); 388 static size_t atohex(unsigned char *, size_t, const char *, size_t); 389 static time_t parse_time(const char *p, size_t n); 390 static int heap_add_entry(struct archive_read *a, 391 struct heap_queue *, struct xar_file *); 392 static struct xar_file *heap_get_entry(struct heap_queue *); 393 static int add_link(struct archive_read *, 394 struct xar *, struct xar_file *); 395 static void checksum_init(struct archive_read *, int, int); 396 static void checksum_update(struct archive_read *, const void *, 397 size_t, const void *, size_t); 398 static int checksum_final(struct archive_read *, const void *, 399 size_t, const void *, size_t); 400 static void checksum_cleanup(struct archive_read *); 401 static int decompression_init(struct archive_read *, enum enctype); 402 static int decompress(struct archive_read *, const void **, 403 size_t *, const void *, size_t *); 404 static int decompression_cleanup(struct archive_read *); 405 static void xmlattr_cleanup(struct xmlattr_list *); 406 static int file_new(struct archive_read *, 407 struct xar *, struct xmlattr_list *); 408 static void file_free(struct xar_file *); 409 static int xattr_new(struct archive_read *, 410 struct xar *, struct xmlattr_list *); 411 static void xattr_free(struct xattr *); 412 static int getencoding(struct xmlattr_list *); 413 static int getsumalgorithm(struct xmlattr_list *); 414 static int unknowntag_start(struct archive_read *, 415 struct xar *, const char *); 416 static void unknowntag_end(struct xar *, const char *); 417 static int xml_start(struct archive_read *, 418 const char *, struct xmlattr_list *); 419 static void xml_end(void *, const char *); 420 static void xml_data(void *, const char *, int); 421 static int xml_parse_file_flags(struct xar *, const char *); 422 static int xml_parse_file_ext2(struct xar *, const char *); 423 #if defined(HAVE_LIBXML_XMLREADER_H) 424 static int xml2_xmlattr_setup(struct archive_read *, 425 struct xmlattr_list *, xmlTextReaderPtr); 426 static int xml2_read_cb(void *, char *, int); 427 static int xml2_close_cb(void *); 428 static void xml2_error_hdr(void *, const char *, xmlParserSeverities, 429 xmlTextReaderLocatorPtr); 430 static int xml2_read_toc(struct archive_read *); 431 #elif defined(HAVE_BSDXML_H) || defined(HAVE_EXPAT_H) 432 struct expat_userData { 433 int state; 434 struct archive_read *archive; 435 }; 436 static int expat_xmlattr_setup(struct archive_read *, 437 struct xmlattr_list *, const XML_Char **); 438 static void expat_start_cb(void *, const XML_Char *, const XML_Char **); 439 static void expat_end_cb(void *, const XML_Char *); 440 static void expat_data_cb(void *, const XML_Char *, int); 441 static int expat_read_toc(struct archive_read *); 442 #endif 443 444 int 445 archive_read_support_format_xar(struct archive *_a) 446 { 447 struct xar *xar; 448 struct archive_read *a = (struct archive_read *)_a; 449 int r; 450 451 archive_check_magic(_a, ARCHIVE_READ_MAGIC, 452 ARCHIVE_STATE_NEW, "archive_read_support_format_xar"); 453 454 xar = (struct xar *)calloc(1, sizeof(*xar)); 455 if (xar == NULL) { 456 archive_set_error(&a->archive, ENOMEM, 457 "Can't allocate xar data"); 458 return (ARCHIVE_FATAL); 459 } 460 461 r = __archive_read_register_format(a, 462 xar, 463 "xar", 464 xar_bid, 465 NULL, 466 xar_read_header, 467 xar_read_data, 468 xar_read_data_skip, 469 NULL, 470 xar_cleanup, 471 NULL, 472 NULL); 473 if (r != ARCHIVE_OK) 474 free(xar); 475 return (r); 476 } 477 478 static int 479 xar_bid(struct archive_read *a, int best_bid) 480 { 481 const unsigned char *b; 482 int bid; 483 484 (void)best_bid; /* UNUSED */ 485 486 b = __archive_read_ahead(a, HEADER_SIZE, NULL); 487 if (b == NULL) 488 return (-1); 489 490 bid = 0; 491 /* 492 * Verify magic code 493 */ 494 if (archive_be32dec(b) != HEADER_MAGIC) 495 return (0); 496 bid += 32; 497 /* 498 * Verify header size 499 */ 500 if (archive_be16dec(b+4) != HEADER_SIZE) 501 return (0); 502 bid += 16; 503 /* 504 * Verify header version 505 */ 506 if (archive_be16dec(b+6) != HEADER_VERSION) 507 return (0); 508 bid += 16; 509 /* 510 * Verify type of checksum 511 */ 512 switch (archive_be32dec(b+24)) { 513 case CKSUM_NONE: 514 case CKSUM_SHA1: 515 case CKSUM_MD5: 516 bid += 32; 517 break; 518 default: 519 return (0); 520 } 521 522 return (bid); 523 } 524 525 static int 526 read_toc(struct archive_read *a) 527 { 528 struct xar *xar; 529 struct xar_file *file; 530 const unsigned char *b; 531 uint64_t toc_compressed_size; 532 uint64_t toc_uncompressed_size; 533 uint32_t toc_chksum_alg; 534 ssize_t bytes; 535 int r; 536 537 xar = (struct xar *)(a->format->data); 538 539 /* 540 * Read xar header. 541 */ 542 b = __archive_read_ahead(a, HEADER_SIZE, &bytes); 543 if (bytes < 0) 544 return ((int)bytes); 545 if (bytes < HEADER_SIZE) { 546 archive_set_error(&a->archive, 547 ARCHIVE_ERRNO_FILE_FORMAT, 548 "Truncated archive header"); 549 return (ARCHIVE_FATAL); 550 } 551 552 if (archive_be32dec(b) != HEADER_MAGIC) { 553 archive_set_error(&a->archive, 554 ARCHIVE_ERRNO_FILE_FORMAT, 555 "Invalid header magic"); 556 return (ARCHIVE_FATAL); 557 } 558 if (archive_be16dec(b+6) != HEADER_VERSION) { 559 archive_set_error(&a->archive, 560 ARCHIVE_ERRNO_FILE_FORMAT, 561 "Unsupported header version(%d)", 562 archive_be16dec(b+6)); 563 return (ARCHIVE_FATAL); 564 } 565 toc_compressed_size = archive_be64dec(b+8); 566 xar->toc_remaining = toc_compressed_size; 567 toc_uncompressed_size = archive_be64dec(b+16); 568 toc_chksum_alg = archive_be32dec(b+24); 569 __archive_read_consume(a, HEADER_SIZE); 570 xar->offset += HEADER_SIZE; 571 xar->toc_total = 0; 572 573 /* 574 * Read TOC(Table of Contents). 575 */ 576 /* Initialize reading contents. */ 577 r = move_reading_point(a, HEADER_SIZE); 578 if (r != ARCHIVE_OK) 579 return (r); 580 r = rd_contents_init(a, GZIP, toc_chksum_alg, CKSUM_NONE); 581 if (r != ARCHIVE_OK) 582 return (r); 583 584 #ifdef HAVE_LIBXML_XMLREADER_H 585 r = xml2_read_toc(a); 586 #elif defined(HAVE_BSDXML_H) || defined(HAVE_EXPAT_H) 587 r = expat_read_toc(a); 588 #endif 589 if (r != ARCHIVE_OK) 590 return (r); 591 592 /* Set 'The HEAP' base. */ 593 xar->h_base = xar->offset; 594 if (xar->toc_total != toc_uncompressed_size) { 595 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 596 "TOC uncompressed size error"); 597 return (ARCHIVE_FATAL); 598 } 599 600 /* 601 * Checksum TOC 602 */ 603 if (toc_chksum_alg != CKSUM_NONE) { 604 r = move_reading_point(a, xar->toc_chksum_offset); 605 if (r != ARCHIVE_OK) 606 return (r); 607 b = __archive_read_ahead(a, 608 (size_t)xar->toc_chksum_size, &bytes); 609 if (bytes < 0) 610 return ((int)bytes); 611 if ((uint64_t)bytes < xar->toc_chksum_size) { 612 archive_set_error(&a->archive, 613 ARCHIVE_ERRNO_FILE_FORMAT, 614 "Truncated archive file"); 615 return (ARCHIVE_FATAL); 616 } 617 r = checksum_final(a, b, 618 (size_t)xar->toc_chksum_size, NULL, 0); 619 __archive_read_consume(a, xar->toc_chksum_size); 620 xar->offset += xar->toc_chksum_size; 621 if (r != ARCHIVE_OK) 622 return (ARCHIVE_FATAL); 623 } 624 625 /* 626 * Connect hardlinked files. 627 */ 628 for (file = xar->hdlink_orgs; file != NULL; file = file->hdnext) { 629 struct hdlink **hdlink; 630 631 for (hdlink = &(xar->hdlink_list); *hdlink != NULL; 632 hdlink = &((*hdlink)->next)) { 633 if ((*hdlink)->id == file->id) { 634 struct hdlink *hltmp; 635 struct xar_file *f2; 636 int nlink = (*hdlink)->cnt + 1; 637 638 file->nlink = nlink; 639 for (f2 = (*hdlink)->files; f2 != NULL; 640 f2 = f2->hdnext) { 641 f2->nlink = nlink; 642 archive_string_copy( 643 &(f2->hardlink), &(file->pathname)); 644 } 645 /* Remove resolved files from hdlist_list. */ 646 hltmp = *hdlink; 647 *hdlink = hltmp->next; 648 free(hltmp); 649 break; 650 } 651 } 652 } 653 a->archive.archive_format = ARCHIVE_FORMAT_XAR; 654 a->archive.archive_format_name = "xar"; 655 656 return (ARCHIVE_OK); 657 } 658 659 static int 660 xar_read_header(struct archive_read *a, struct archive_entry *entry) 661 { 662 struct xar *xar; 663 struct xar_file *file; 664 struct xattr *xattr; 665 int r; 666 667 xar = (struct xar *)(a->format->data); 668 r = ARCHIVE_OK; 669 670 if (xar->offset == 0) { 671 /* Create a character conversion object. */ 672 if (xar->sconv == NULL) { 673 xar->sconv = archive_string_conversion_from_charset( 674 &(a->archive), "UTF-8", 1); 675 if (xar->sconv == NULL) 676 return (ARCHIVE_FATAL); 677 } 678 679 /* Read TOC. */ 680 r = read_toc(a); 681 if (r != ARCHIVE_OK) 682 return (r); 683 } 684 685 for (;;) { 686 file = xar->file = heap_get_entry(&(xar->file_queue)); 687 if (file == NULL) { 688 xar->end_of_file = 1; 689 return (ARCHIVE_EOF); 690 } 691 if ((file->mode & AE_IFMT) != AE_IFDIR) 692 break; 693 if (file->has != (HAS_PATHNAME | HAS_TYPE)) 694 break; 695 /* 696 * If a file type is a directory and it does not have 697 * any metadata, do not export. 698 */ 699 file_free(file); 700 } 701 if (file->has & HAS_ATIME) { 702 archive_entry_set_atime(entry, file->atime, 0); 703 } 704 if (file->has & HAS_CTIME) { 705 archive_entry_set_ctime(entry, file->ctime, 0); 706 } 707 if (file->has & HAS_MTIME) { 708 archive_entry_set_mtime(entry, file->mtime, 0); 709 } 710 archive_entry_set_gid(entry, file->gid); 711 if (file->gname.length > 0 && 712 archive_entry_copy_gname_l(entry, file->gname.s, 713 archive_strlen(&(file->gname)), xar->sconv) != 0) { 714 if (errno == ENOMEM) { 715 archive_set_error(&a->archive, ENOMEM, 716 "Can't allocate memory for Gname"); 717 return (ARCHIVE_FATAL); 718 } 719 archive_set_error(&a->archive, 720 ARCHIVE_ERRNO_FILE_FORMAT, 721 "Gname cannot be converted from %s to current locale.", 722 archive_string_conversion_charset_name(xar->sconv)); 723 r = ARCHIVE_WARN; 724 } 725 archive_entry_set_uid(entry, file->uid); 726 if (file->uname.length > 0 && 727 archive_entry_copy_uname_l(entry, file->uname.s, 728 archive_strlen(&(file->uname)), xar->sconv) != 0) { 729 if (errno == ENOMEM) { 730 archive_set_error(&a->archive, ENOMEM, 731 "Can't allocate memory for Uname"); 732 return (ARCHIVE_FATAL); 733 } 734 archive_set_error(&a->archive, 735 ARCHIVE_ERRNO_FILE_FORMAT, 736 "Uname cannot be converted from %s to current locale.", 737 archive_string_conversion_charset_name(xar->sconv)); 738 r = ARCHIVE_WARN; 739 } 740 archive_entry_set_mode(entry, file->mode); 741 if (archive_entry_copy_pathname_l(entry, file->pathname.s, 742 archive_strlen(&(file->pathname)), xar->sconv) != 0) { 743 if (errno == ENOMEM) { 744 archive_set_error(&a->archive, ENOMEM, 745 "Can't allocate memory for Pathname"); 746 return (ARCHIVE_FATAL); 747 } 748 archive_set_error(&a->archive, 749 ARCHIVE_ERRNO_FILE_FORMAT, 750 "Pathname cannot be converted from %s to current locale.", 751 archive_string_conversion_charset_name(xar->sconv)); 752 r = ARCHIVE_WARN; 753 } 754 755 756 if (file->symlink.length > 0 && 757 archive_entry_copy_symlink_l(entry, file->symlink.s, 758 archive_strlen(&(file->symlink)), xar->sconv) != 0) { 759 if (errno == ENOMEM) { 760 archive_set_error(&a->archive, ENOMEM, 761 "Can't allocate memory for Linkname"); 762 return (ARCHIVE_FATAL); 763 } 764 archive_set_error(&a->archive, 765 ARCHIVE_ERRNO_FILE_FORMAT, 766 "Linkname cannot be converted from %s to current locale.", 767 archive_string_conversion_charset_name(xar->sconv)); 768 r = ARCHIVE_WARN; 769 } 770 /* Set proper nlink. */ 771 if ((file->mode & AE_IFMT) == AE_IFDIR) 772 archive_entry_set_nlink(entry, file->subdirs + 2); 773 else 774 archive_entry_set_nlink(entry, file->nlink); 775 archive_entry_set_size(entry, file->size); 776 if (archive_strlen(&(file->hardlink)) > 0) 777 archive_entry_set_hardlink(entry, file->hardlink.s); 778 archive_entry_set_ino64(entry, file->ino64); 779 if (file->has & HAS_DEV) 780 archive_entry_set_dev(entry, file->dev); 781 if (file->has & HAS_DEVMAJOR) 782 archive_entry_set_devmajor(entry, file->devmajor); 783 if (file->has & HAS_DEVMINOR) 784 archive_entry_set_devminor(entry, file->devminor); 785 if (archive_strlen(&(file->fflags_text)) > 0) 786 archive_entry_copy_fflags_text(entry, file->fflags_text.s); 787 788 xar->entry_init = 1; 789 xar->entry_total = 0; 790 xar->entry_remaining = file->length; 791 xar->entry_size = file->size; 792 xar->entry_encoding = file->encoding; 793 xar->entry_a_sum = file->a_sum; 794 xar->entry_e_sum = file->e_sum; 795 /* 796 * Read extended attributes. 797 */ 798 xattr = file->xattr_list; 799 while (xattr != NULL) { 800 const void *d; 801 size_t outbytes, used; 802 803 r = move_reading_point(a, xattr->offset); 804 if (r != ARCHIVE_OK) 805 break; 806 r = rd_contents_init(a, xattr->encoding, 807 xattr->a_sum.alg, xattr->e_sum.alg); 808 if (r != ARCHIVE_OK) 809 break; 810 d = NULL; 811 r = rd_contents(a, &d, &outbytes, &used, xattr->length); 812 if (r != ARCHIVE_OK) 813 break; 814 if (outbytes != xattr->size) { 815 archive_set_error(&(a->archive), ARCHIVE_ERRNO_MISC, 816 "Decompressed size error"); 817 r = ARCHIVE_FATAL; 818 break; 819 } 820 r = checksum_final(a, 821 xattr->a_sum.val, xattr->a_sum.len, 822 xattr->e_sum.val, xattr->e_sum.len); 823 if (r != ARCHIVE_OK) 824 break; 825 archive_entry_xattr_add_entry(entry, 826 xattr->name.s, d, outbytes); 827 xattr = xattr->next; 828 } 829 if (r != ARCHIVE_OK) { 830 file_free(file); 831 return (r); 832 } 833 834 if (xar->entry_remaining > 0) 835 /* Move reading point to the beginning of current 836 * file contents. */ 837 r = move_reading_point(a, file->offset); 838 else 839 r = ARCHIVE_OK; 840 841 file_free(file); 842 return (r); 843 } 844 845 static int 846 xar_read_data(struct archive_read *a, 847 const void **buff, size_t *size, int64_t *offset) 848 { 849 struct xar *xar; 850 size_t used; 851 int r; 852 853 xar = (struct xar *)(a->format->data); 854 855 if (xar->entry_unconsumed) { 856 __archive_read_consume(a, xar->entry_unconsumed); 857 xar->entry_unconsumed = 0; 858 } 859 860 if (xar->end_of_file || xar->entry_remaining <= 0) { 861 r = ARCHIVE_EOF; 862 goto abort_read_data; 863 } 864 865 if (xar->entry_init) { 866 r = rd_contents_init(a, xar->entry_encoding, 867 xar->entry_a_sum.alg, xar->entry_e_sum.alg); 868 if (r != ARCHIVE_OK) { 869 xar->entry_remaining = 0; 870 return (r); 871 } 872 xar->entry_init = 0; 873 } 874 875 *buff = NULL; 876 r = rd_contents(a, buff, size, &used, xar->entry_remaining); 877 if (r != ARCHIVE_OK) 878 goto abort_read_data; 879 880 *offset = xar->entry_total; 881 xar->entry_total += *size; 882 xar->total += *size; 883 xar->offset += used; 884 xar->entry_remaining -= used; 885 xar->entry_unconsumed = used; 886 887 if (xar->entry_remaining == 0) { 888 if (xar->entry_total != xar->entry_size) { 889 archive_set_error(&(a->archive), ARCHIVE_ERRNO_MISC, 890 "Decompressed size error"); 891 r = ARCHIVE_FATAL; 892 goto abort_read_data; 893 } 894 r = checksum_final(a, 895 xar->entry_a_sum.val, xar->entry_a_sum.len, 896 xar->entry_e_sum.val, xar->entry_e_sum.len); 897 if (r != ARCHIVE_OK) 898 goto abort_read_data; 899 } 900 901 return (ARCHIVE_OK); 902 abort_read_data: 903 *buff = NULL; 904 *size = 0; 905 *offset = xar->total; 906 return (r); 907 } 908 909 static int 910 xar_read_data_skip(struct archive_read *a) 911 { 912 struct xar *xar; 913 int64_t bytes_skipped; 914 915 xar = (struct xar *)(a->format->data); 916 if (xar->end_of_file) 917 return (ARCHIVE_EOF); 918 bytes_skipped = __archive_read_consume(a, xar->entry_remaining + 919 xar->entry_unconsumed); 920 if (bytes_skipped < 0) 921 return (ARCHIVE_FATAL); 922 xar->offset += bytes_skipped; 923 xar->entry_unconsumed = 0; 924 return (ARCHIVE_OK); 925 } 926 927 static int 928 xar_cleanup(struct archive_read *a) 929 { 930 struct xar *xar; 931 struct hdlink *hdlink; 932 int i; 933 int r; 934 935 xar = (struct xar *)(a->format->data); 936 checksum_cleanup(a); 937 r = decompression_cleanup(a); 938 hdlink = xar->hdlink_list; 939 while (hdlink != NULL) { 940 struct hdlink *next = hdlink->next; 941 942 free(hdlink); 943 hdlink = next; 944 } 945 for (i = 0; i < xar->file_queue.used; i++) 946 file_free(xar->file_queue.files[i]); 947 free(xar->file_queue.files); 948 while (xar->unknowntags != NULL) { 949 struct unknown_tag *tag; 950 951 tag = xar->unknowntags; 952 xar->unknowntags = tag->next; 953 archive_string_free(&(tag->name)); 954 free(tag); 955 } 956 free(xar->outbuff); 957 free(xar); 958 a->format->data = NULL; 959 return (r); 960 } 961 962 static int 963 move_reading_point(struct archive_read *a, uint64_t offset) 964 { 965 struct xar *xar; 966 967 xar = (struct xar *)(a->format->data); 968 if (xar->offset - xar->h_base != offset) { 969 /* Seek forward to the start of file contents. */ 970 int64_t step; 971 972 step = offset - (xar->offset - xar->h_base); 973 if (step > 0) { 974 step = __archive_read_consume(a, step); 975 if (step < 0) 976 return ((int)step); 977 xar->offset += step; 978 } else { 979 int64_t pos = __archive_read_seek(a, xar->h_base + offset, SEEK_SET); 980 if (pos == ARCHIVE_FAILED) { 981 archive_set_error(&(a->archive), 982 ARCHIVE_ERRNO_MISC, 983 "Cannot seek."); 984 return (ARCHIVE_FAILED); 985 } 986 xar->offset = pos; 987 } 988 } 989 return (ARCHIVE_OK); 990 } 991 992 static int 993 rd_contents_init(struct archive_read *a, enum enctype encoding, 994 int a_sum_alg, int e_sum_alg) 995 { 996 int r; 997 998 /* Init decompress library. */ 999 if ((r = decompression_init(a, encoding)) != ARCHIVE_OK) 1000 return (r); 1001 /* Init checksum library. */ 1002 checksum_init(a, a_sum_alg, e_sum_alg); 1003 return (ARCHIVE_OK); 1004 } 1005 1006 static int 1007 rd_contents(struct archive_read *a, const void **buff, size_t *size, 1008 size_t *used, uint64_t remaining) 1009 { 1010 const unsigned char *b; 1011 ssize_t bytes; 1012 1013 /* Get whatever bytes are immediately available. */ 1014 b = __archive_read_ahead(a, 1, &bytes); 1015 if (bytes < 0) 1016 return ((int)bytes); 1017 if (bytes == 0) { 1018 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 1019 "Truncated archive file"); 1020 return (ARCHIVE_FATAL); 1021 } 1022 if ((uint64_t)bytes > remaining) 1023 bytes = (ssize_t)remaining; 1024 1025 /* 1026 * Decompress contents of file. 1027 */ 1028 *used = bytes; 1029 if (decompress(a, buff, size, b, used) != ARCHIVE_OK) 1030 return (ARCHIVE_FATAL); 1031 1032 /* 1033 * Update checksum of a compressed data and a extracted data. 1034 */ 1035 checksum_update(a, b, *used, *buff, *size); 1036 1037 return (ARCHIVE_OK); 1038 } 1039 1040 /* 1041 * Note that this implementation does not (and should not!) obey 1042 * locale settings; you cannot simply substitute strtol here, since 1043 * it does obey locale. 1044 */ 1045 1046 static uint64_t 1047 atol10(const char *p, size_t char_cnt) 1048 { 1049 uint64_t l; 1050 int digit; 1051 1052 if (char_cnt == 0) 1053 return (0); 1054 1055 l = 0; 1056 digit = *p - '0'; 1057 while (digit >= 0 && digit < 10 && char_cnt-- > 0) { 1058 l = (l * 10) + digit; 1059 digit = *++p - '0'; 1060 } 1061 return (l); 1062 } 1063 1064 static int64_t 1065 atol8(const char *p, size_t char_cnt) 1066 { 1067 int64_t l; 1068 int digit; 1069 1070 if (char_cnt == 0) 1071 return (0); 1072 1073 l = 0; 1074 while (char_cnt-- > 0) { 1075 if (*p >= '0' && *p <= '7') 1076 digit = *p - '0'; 1077 else 1078 break; 1079 p++; 1080 l <<= 3; 1081 l |= digit; 1082 } 1083 return (l); 1084 } 1085 1086 static size_t 1087 atohex(unsigned char *b, size_t bsize, const char *p, size_t psize) 1088 { 1089 size_t fbsize = bsize; 1090 1091 while (bsize && psize > 1) { 1092 unsigned char x; 1093 1094 if (p[0] >= 'a' && p[0] <= 'z') 1095 x = (p[0] - 'a' + 0x0a) << 4; 1096 else if (p[0] >= 'A' && p[0] <= 'Z') 1097 x = (p[0] - 'A' + 0x0a) << 4; 1098 else if (p[0] >= '0' && p[0] <= '9') 1099 x = (p[0] - '0') << 4; 1100 else 1101 return (-1); 1102 if (p[1] >= 'a' && p[1] <= 'z') 1103 x |= p[1] - 'a' + 0x0a; 1104 else if (p[1] >= 'A' && p[1] <= 'Z') 1105 x |= p[1] - 'A' + 0x0a; 1106 else if (p[1] >= '0' && p[1] <= '9') 1107 x |= p[1] - '0'; 1108 else 1109 return (-1); 1110 1111 *b++ = x; 1112 bsize--; 1113 p += 2; 1114 psize -= 2; 1115 } 1116 return (fbsize - bsize); 1117 } 1118 1119 static time_t 1120 time_from_tm(struct tm *t) 1121 { 1122 #if HAVE_TIMEGM 1123 /* Use platform timegm() if available. */ 1124 return (timegm(t)); 1125 #elif HAVE__MKGMTIME64 1126 return (_mkgmtime64(t)); 1127 #else 1128 /* Else use direct calculation using POSIX assumptions. */ 1129 /* First, fix up tm_yday based on the year/month/day. */ 1130 mktime(t); 1131 /* Then we can compute timegm() from first principles. */ 1132 return (t->tm_sec 1133 + t->tm_min * 60 1134 + t->tm_hour * 3600 1135 + t->tm_yday * 86400 1136 + (t->tm_year - 70) * 31536000 1137 + ((t->tm_year - 69) / 4) * 86400 1138 - ((t->tm_year - 1) / 100) * 86400 1139 + ((t->tm_year + 299) / 400) * 86400); 1140 #endif 1141 } 1142 1143 static time_t 1144 parse_time(const char *p, size_t n) 1145 { 1146 struct tm tm; 1147 time_t t = 0; 1148 int64_t data; 1149 1150 memset(&tm, 0, sizeof(tm)); 1151 if (n != 20) 1152 return (t); 1153 data = atol10(p, 4); 1154 if (data < 1900) 1155 return (t); 1156 tm.tm_year = (int)data - 1900; 1157 p += 4; 1158 if (*p++ != '-') 1159 return (t); 1160 data = atol10(p, 2); 1161 if (data < 1 || data > 12) 1162 return (t); 1163 tm.tm_mon = (int)data -1; 1164 p += 2; 1165 if (*p++ != '-') 1166 return (t); 1167 data = atol10(p, 2); 1168 if (data < 1 || data > 31) 1169 return (t); 1170 tm.tm_mday = (int)data; 1171 p += 2; 1172 if (*p++ != 'T') 1173 return (t); 1174 data = atol10(p, 2); 1175 if (data < 0 || data > 23) 1176 return (t); 1177 tm.tm_hour = (int)data; 1178 p += 2; 1179 if (*p++ != ':') 1180 return (t); 1181 data = atol10(p, 2); 1182 if (data < 0 || data > 59) 1183 return (t); 1184 tm.tm_min = (int)data; 1185 p += 2; 1186 if (*p++ != ':') 1187 return (t); 1188 data = atol10(p, 2); 1189 if (data < 0 || data > 60) 1190 return (t); 1191 tm.tm_sec = (int)data; 1192 #if 0 1193 p += 2; 1194 if (*p != 'Z') 1195 return (t); 1196 #endif 1197 1198 t = time_from_tm(&tm); 1199 1200 return (t); 1201 } 1202 1203 static int 1204 heap_add_entry(struct archive_read *a, 1205 struct heap_queue *heap, struct xar_file *file) 1206 { 1207 uint64_t file_id, parent_id; 1208 int hole, parent; 1209 1210 /* Expand our pending files list as necessary. */ 1211 if (heap->used >= heap->allocated) { 1212 struct xar_file **new_pending_files; 1213 int new_size = heap->allocated * 2; 1214 1215 if (heap->allocated < 1024) 1216 new_size = 1024; 1217 /* Overflow might keep us from growing the list. */ 1218 if (new_size <= heap->allocated) { 1219 archive_set_error(&a->archive, 1220 ENOMEM, "Out of memory"); 1221 return (ARCHIVE_FATAL); 1222 } 1223 new_pending_files = (struct xar_file **) 1224 malloc(new_size * sizeof(new_pending_files[0])); 1225 if (new_pending_files == NULL) { 1226 archive_set_error(&a->archive, 1227 ENOMEM, "Out of memory"); 1228 return (ARCHIVE_FATAL); 1229 } 1230 memcpy(new_pending_files, heap->files, 1231 heap->allocated * sizeof(new_pending_files[0])); 1232 free(heap->files); 1233 heap->files = new_pending_files; 1234 heap->allocated = new_size; 1235 } 1236 1237 file_id = file->id; 1238 1239 /* 1240 * Start with hole at end, walk it up tree to find insertion point. 1241 */ 1242 hole = heap->used++; 1243 while (hole > 0) { 1244 parent = (hole - 1)/2; 1245 parent_id = heap->files[parent]->id; 1246 if (file_id >= parent_id) { 1247 heap->files[hole] = file; 1248 return (ARCHIVE_OK); 1249 } 1250 /* Move parent into hole <==> move hole up tree. */ 1251 heap->files[hole] = heap->files[parent]; 1252 hole = parent; 1253 } 1254 heap->files[0] = file; 1255 1256 return (ARCHIVE_OK); 1257 } 1258 1259 static struct xar_file * 1260 heap_get_entry(struct heap_queue *heap) 1261 { 1262 uint64_t a_id, b_id, c_id; 1263 int a, b, c; 1264 struct xar_file *r, *tmp; 1265 1266 if (heap->used < 1) 1267 return (NULL); 1268 1269 /* 1270 * The first file in the list is the earliest; we'll return this. 1271 */ 1272 r = heap->files[0]; 1273 1274 /* 1275 * Move the last item in the heap to the root of the tree 1276 */ 1277 heap->files[0] = heap->files[--(heap->used)]; 1278 1279 /* 1280 * Rebalance the heap. 1281 */ 1282 a = 0; /* Starting element and its heap key */ 1283 a_id = heap->files[a]->id; 1284 for (;;) { 1285 b = a + a + 1; /* First child */ 1286 if (b >= heap->used) 1287 return (r); 1288 b_id = heap->files[b]->id; 1289 c = b + 1; /* Use second child if it is smaller. */ 1290 if (c < heap->used) { 1291 c_id = heap->files[c]->id; 1292 if (c_id < b_id) { 1293 b = c; 1294 b_id = c_id; 1295 } 1296 } 1297 if (a_id <= b_id) 1298 return (r); 1299 tmp = heap->files[a]; 1300 heap->files[a] = heap->files[b]; 1301 heap->files[b] = tmp; 1302 a = b; 1303 } 1304 } 1305 1306 static int 1307 add_link(struct archive_read *a, struct xar *xar, struct xar_file *file) 1308 { 1309 struct hdlink *hdlink; 1310 1311 for (hdlink = xar->hdlink_list; hdlink != NULL; hdlink = hdlink->next) { 1312 if (hdlink->id == file->link) { 1313 file->hdnext = hdlink->files; 1314 hdlink->cnt++; 1315 hdlink->files = file; 1316 return (ARCHIVE_OK); 1317 } 1318 } 1319 hdlink = malloc(sizeof(*hdlink)); 1320 if (hdlink == NULL) { 1321 archive_set_error(&a->archive, ENOMEM, "Out of memory"); 1322 return (ARCHIVE_FATAL); 1323 } 1324 file->hdnext = NULL; 1325 hdlink->id = file->link; 1326 hdlink->cnt = 1; 1327 hdlink->files = file; 1328 hdlink->next = xar->hdlink_list; 1329 xar->hdlink_list = hdlink; 1330 return (ARCHIVE_OK); 1331 } 1332 1333 static void 1334 _checksum_init(struct chksumwork *sumwrk, int sum_alg) 1335 { 1336 sumwrk->alg = sum_alg; 1337 switch (sum_alg) { 1338 case CKSUM_NONE: 1339 break; 1340 case CKSUM_SHA1: 1341 archive_sha1_init(&(sumwrk->sha1ctx)); 1342 break; 1343 case CKSUM_MD5: 1344 archive_md5_init(&(sumwrk->md5ctx)); 1345 break; 1346 } 1347 } 1348 1349 static void 1350 _checksum_update(struct chksumwork *sumwrk, const void *buff, size_t size) 1351 { 1352 1353 switch (sumwrk->alg) { 1354 case CKSUM_NONE: 1355 break; 1356 case CKSUM_SHA1: 1357 archive_sha1_update(&(sumwrk->sha1ctx), buff, size); 1358 break; 1359 case CKSUM_MD5: 1360 archive_md5_update(&(sumwrk->md5ctx), buff, size); 1361 break; 1362 } 1363 } 1364 1365 static int 1366 _checksum_final(struct chksumwork *sumwrk, const void *val, size_t len) 1367 { 1368 unsigned char sum[MAX_SUM_SIZE]; 1369 int r = ARCHIVE_OK; 1370 1371 switch (sumwrk->alg) { 1372 case CKSUM_NONE: 1373 break; 1374 case CKSUM_SHA1: 1375 archive_sha1_final(&(sumwrk->sha1ctx), sum); 1376 if (len != SHA1_SIZE || 1377 memcmp(val, sum, SHA1_SIZE) != 0) 1378 r = ARCHIVE_FAILED; 1379 break; 1380 case CKSUM_MD5: 1381 archive_md5_final(&(sumwrk->md5ctx), sum); 1382 if (len != MD5_SIZE || 1383 memcmp(val, sum, MD5_SIZE) != 0) 1384 r = ARCHIVE_FAILED; 1385 break; 1386 } 1387 return (r); 1388 } 1389 1390 static void 1391 checksum_init(struct archive_read *a, int a_sum_alg, int e_sum_alg) 1392 { 1393 struct xar *xar; 1394 1395 xar = (struct xar *)(a->format->data); 1396 _checksum_init(&(xar->a_sumwrk), a_sum_alg); 1397 _checksum_init(&(xar->e_sumwrk), e_sum_alg); 1398 } 1399 1400 static void 1401 checksum_update(struct archive_read *a, const void *abuff, size_t asize, 1402 const void *ebuff, size_t esize) 1403 { 1404 struct xar *xar; 1405 1406 xar = (struct xar *)(a->format->data); 1407 _checksum_update(&(xar->a_sumwrk), abuff, asize); 1408 _checksum_update(&(xar->e_sumwrk), ebuff, esize); 1409 } 1410 1411 static int 1412 checksum_final(struct archive_read *a, const void *a_sum_val, 1413 size_t a_sum_len, const void *e_sum_val, size_t e_sum_len) 1414 { 1415 struct xar *xar; 1416 int r; 1417 1418 xar = (struct xar *)(a->format->data); 1419 r = _checksum_final(&(xar->a_sumwrk), a_sum_val, a_sum_len); 1420 if (r == ARCHIVE_OK) 1421 r = _checksum_final(&(xar->e_sumwrk), e_sum_val, e_sum_len); 1422 if (r != ARCHIVE_OK) 1423 archive_set_error(&(a->archive), ARCHIVE_ERRNO_MISC, 1424 "Sumcheck error"); 1425 return (r); 1426 } 1427 1428 static int 1429 decompression_init(struct archive_read *a, enum enctype encoding) 1430 { 1431 struct xar *xar; 1432 const char *detail; 1433 int r; 1434 1435 xar = (struct xar *)(a->format->data); 1436 xar->rd_encoding = encoding; 1437 switch (encoding) { 1438 case NONE: 1439 break; 1440 case GZIP: 1441 if (xar->stream_valid) 1442 r = inflateReset(&(xar->stream)); 1443 else 1444 r = inflateInit(&(xar->stream)); 1445 if (r != Z_OK) { 1446 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 1447 "Couldn't initialize zlib stream."); 1448 return (ARCHIVE_FATAL); 1449 } 1450 xar->stream_valid = 1; 1451 xar->stream.total_in = 0; 1452 xar->stream.total_out = 0; 1453 break; 1454 #if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR) 1455 case BZIP2: 1456 if (xar->bzstream_valid) { 1457 BZ2_bzDecompressEnd(&(xar->bzstream)); 1458 xar->bzstream_valid = 0; 1459 } 1460 r = BZ2_bzDecompressInit(&(xar->bzstream), 0, 0); 1461 if (r == BZ_MEM_ERROR) 1462 r = BZ2_bzDecompressInit(&(xar->bzstream), 0, 1); 1463 if (r != BZ_OK) { 1464 int err = ARCHIVE_ERRNO_MISC; 1465 detail = NULL; 1466 switch (r) { 1467 case BZ_PARAM_ERROR: 1468 detail = "invalid setup parameter"; 1469 break; 1470 case BZ_MEM_ERROR: 1471 err = ENOMEM; 1472 detail = "out of memory"; 1473 break; 1474 case BZ_CONFIG_ERROR: 1475 detail = "mis-compiled library"; 1476 break; 1477 } 1478 archive_set_error(&a->archive, err, 1479 "Internal error initializing decompressor: %s", 1480 detail == NULL ? "??" : detail); 1481 xar->bzstream_valid = 0; 1482 return (ARCHIVE_FATAL); 1483 } 1484 xar->bzstream_valid = 1; 1485 xar->bzstream.total_in_lo32 = 0; 1486 xar->bzstream.total_in_hi32 = 0; 1487 xar->bzstream.total_out_lo32 = 0; 1488 xar->bzstream.total_out_hi32 = 0; 1489 break; 1490 #endif 1491 #if defined(HAVE_LZMA_H) && defined(HAVE_LIBLZMA) 1492 #if LZMA_VERSION_MAJOR >= 5 1493 /* Effectively disable the limiter. */ 1494 #define LZMA_MEMLIMIT UINT64_MAX 1495 #else 1496 /* NOTE: This needs to check memory size which running system has. */ 1497 #define LZMA_MEMLIMIT (1U << 30) 1498 #endif 1499 case XZ: 1500 case LZMA: 1501 if (xar->lzstream_valid) { 1502 lzma_end(&(xar->lzstream)); 1503 xar->lzstream_valid = 0; 1504 } 1505 if (xar->entry_encoding == XZ) 1506 r = lzma_stream_decoder(&(xar->lzstream), 1507 LZMA_MEMLIMIT,/* memlimit */ 1508 LZMA_CONCATENATED); 1509 else 1510 r = lzma_alone_decoder(&(xar->lzstream), 1511 LZMA_MEMLIMIT);/* memlimit */ 1512 if (r != LZMA_OK) { 1513 switch (r) { 1514 case LZMA_MEM_ERROR: 1515 archive_set_error(&a->archive, 1516 ENOMEM, 1517 "Internal error initializing " 1518 "compression library: " 1519 "Cannot allocate memory"); 1520 break; 1521 case LZMA_OPTIONS_ERROR: 1522 archive_set_error(&a->archive, 1523 ARCHIVE_ERRNO_MISC, 1524 "Internal error initializing " 1525 "compression library: " 1526 "Invalid or unsupported options"); 1527 break; 1528 default: 1529 archive_set_error(&a->archive, 1530 ARCHIVE_ERRNO_MISC, 1531 "Internal error initializing " 1532 "lzma library"); 1533 break; 1534 } 1535 return (ARCHIVE_FATAL); 1536 } 1537 xar->lzstream_valid = 1; 1538 xar->lzstream.total_in = 0; 1539 xar->lzstream.total_out = 0; 1540 break; 1541 #endif 1542 /* 1543 * Unsupported compression. 1544 */ 1545 default: 1546 #if !defined(HAVE_BZLIB_H) || !defined(BZ_CONFIG_ERROR) 1547 case BZIP2: 1548 #endif 1549 #if !defined(HAVE_LZMA_H) || !defined(HAVE_LIBLZMA) 1550 case LZMA: 1551 case XZ: 1552 #endif 1553 switch (xar->entry_encoding) { 1554 case BZIP2: detail = "bzip2"; break; 1555 case LZMA: detail = "lzma"; break; 1556 case XZ: detail = "xz"; break; 1557 default: detail = "??"; break; 1558 } 1559 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 1560 "%s compression not supported on this platform", 1561 detail); 1562 return (ARCHIVE_FAILED); 1563 } 1564 return (ARCHIVE_OK); 1565 } 1566 1567 static int 1568 decompress(struct archive_read *a, const void **buff, size_t *outbytes, 1569 const void *b, size_t *used) 1570 { 1571 struct xar *xar; 1572 void *outbuff; 1573 size_t avail_in, avail_out; 1574 int r; 1575 1576 xar = (struct xar *)(a->format->data); 1577 avail_in = *used; 1578 outbuff = (void *)(uintptr_t)*buff; 1579 if (outbuff == NULL) { 1580 if (xar->outbuff == NULL) { 1581 xar->outbuff = malloc(OUTBUFF_SIZE); 1582 if (xar->outbuff == NULL) { 1583 archive_set_error(&a->archive, ENOMEM, 1584 "Couldn't allocate memory for out buffer"); 1585 return (ARCHIVE_FATAL); 1586 } 1587 } 1588 outbuff = xar->outbuff; 1589 *buff = outbuff; 1590 avail_out = OUTBUFF_SIZE; 1591 } else 1592 avail_out = *outbytes; 1593 switch (xar->rd_encoding) { 1594 case GZIP: 1595 xar->stream.next_in = (Bytef *)(uintptr_t)b; 1596 xar->stream.avail_in = avail_in; 1597 xar->stream.next_out = (unsigned char *)outbuff; 1598 xar->stream.avail_out = avail_out; 1599 r = inflate(&(xar->stream), 0); 1600 switch (r) { 1601 case Z_OK: /* Decompressor made some progress.*/ 1602 case Z_STREAM_END: /* Found end of stream. */ 1603 break; 1604 default: 1605 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 1606 "File decompression failed (%d)", r); 1607 return (ARCHIVE_FATAL); 1608 } 1609 *used = avail_in - xar->stream.avail_in; 1610 *outbytes = avail_out - xar->stream.avail_out; 1611 break; 1612 #if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR) 1613 case BZIP2: 1614 xar->bzstream.next_in = (char *)(uintptr_t)b; 1615 xar->bzstream.avail_in = avail_in; 1616 xar->bzstream.next_out = (char *)outbuff; 1617 xar->bzstream.avail_out = avail_out; 1618 r = BZ2_bzDecompress(&(xar->bzstream)); 1619 switch (r) { 1620 case BZ_STREAM_END: /* Found end of stream. */ 1621 switch (BZ2_bzDecompressEnd(&(xar->bzstream))) { 1622 case BZ_OK: 1623 break; 1624 default: 1625 archive_set_error(&(a->archive), 1626 ARCHIVE_ERRNO_MISC, 1627 "Failed to clean up decompressor"); 1628 return (ARCHIVE_FATAL); 1629 } 1630 xar->bzstream_valid = 0; 1631 /* FALLTHROUGH */ 1632 case BZ_OK: /* Decompressor made some progress. */ 1633 break; 1634 default: 1635 archive_set_error(&(a->archive), 1636 ARCHIVE_ERRNO_MISC, 1637 "bzip decompression failed"); 1638 return (ARCHIVE_FATAL); 1639 } 1640 *used = avail_in - xar->bzstream.avail_in; 1641 *outbytes = avail_out - xar->bzstream.avail_out; 1642 break; 1643 #endif 1644 #if defined(HAVE_LZMA_H) && defined(HAVE_LIBLZMA) 1645 case LZMA: 1646 case XZ: 1647 xar->lzstream.next_in = b; 1648 xar->lzstream.avail_in = avail_in; 1649 xar->lzstream.next_out = (unsigned char *)outbuff; 1650 xar->lzstream.avail_out = avail_out; 1651 r = lzma_code(&(xar->lzstream), LZMA_RUN); 1652 switch (r) { 1653 case LZMA_STREAM_END: /* Found end of stream. */ 1654 lzma_end(&(xar->lzstream)); 1655 xar->lzstream_valid = 0; 1656 /* FALLTHROUGH */ 1657 case LZMA_OK: /* Decompressor made some progress. */ 1658 break; 1659 default: 1660 archive_set_error(&(a->archive), 1661 ARCHIVE_ERRNO_MISC, 1662 "%s decompression failed(%d)", 1663 (xar->entry_encoding == XZ)?"xz":"lzma", 1664 r); 1665 return (ARCHIVE_FATAL); 1666 } 1667 *used = avail_in - xar->lzstream.avail_in; 1668 *outbytes = avail_out - xar->lzstream.avail_out; 1669 break; 1670 #endif 1671 #if !defined(HAVE_BZLIB_H) || !defined(BZ_CONFIG_ERROR) 1672 case BZIP2: 1673 #endif 1674 #if !defined(HAVE_LZMA_H) || !defined(HAVE_LIBLZMA) 1675 case LZMA: 1676 case XZ: 1677 #endif 1678 case NONE: 1679 default: 1680 if (outbuff == xar->outbuff) { 1681 *buff = b; 1682 *used = avail_in; 1683 *outbytes = avail_in; 1684 } else { 1685 if (avail_out > avail_in) 1686 avail_out = avail_in; 1687 memcpy(outbuff, b, avail_out); 1688 *used = avail_out; 1689 *outbytes = avail_out; 1690 } 1691 break; 1692 } 1693 return (ARCHIVE_OK); 1694 } 1695 1696 static int 1697 decompression_cleanup(struct archive_read *a) 1698 { 1699 struct xar *xar; 1700 int r; 1701 1702 xar = (struct xar *)(a->format->data); 1703 r = ARCHIVE_OK; 1704 if (xar->stream_valid) { 1705 if (inflateEnd(&(xar->stream)) != Z_OK) { 1706 archive_set_error(&a->archive, 1707 ARCHIVE_ERRNO_MISC, 1708 "Failed to clean up zlib decompressor"); 1709 r = ARCHIVE_FATAL; 1710 } 1711 } 1712 #if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR) 1713 if (xar->bzstream_valid) { 1714 if (BZ2_bzDecompressEnd(&(xar->bzstream)) != BZ_OK) { 1715 archive_set_error(&a->archive, 1716 ARCHIVE_ERRNO_MISC, 1717 "Failed to clean up bzip2 decompressor"); 1718 r = ARCHIVE_FATAL; 1719 } 1720 } 1721 #endif 1722 #if defined(HAVE_LZMA_H) && defined(HAVE_LIBLZMA) 1723 if (xar->lzstream_valid) 1724 lzma_end(&(xar->lzstream)); 1725 #elif defined(HAVE_LZMA_H) && defined(HAVE_LIBLZMA) 1726 if (xar->lzstream_valid) { 1727 if (lzmadec_end(&(xar->lzstream)) != LZMADEC_OK) { 1728 archive_set_error(&a->archive, 1729 ARCHIVE_ERRNO_MISC, 1730 "Failed to clean up lzmadec decompressor"); 1731 r = ARCHIVE_FATAL; 1732 } 1733 } 1734 #endif 1735 return (r); 1736 } 1737 1738 static void 1739 checksum_cleanup(struct archive_read *a) { 1740 struct xar *xar; 1741 1742 xar = (struct xar *)(a->format->data); 1743 1744 _checksum_final(&(xar->a_sumwrk), NULL, 0); 1745 _checksum_final(&(xar->e_sumwrk), NULL, 0); 1746 } 1747 1748 static void 1749 xmlattr_cleanup(struct xmlattr_list *list) 1750 { 1751 struct xmlattr *attr, *next; 1752 1753 attr = list->first; 1754 while (attr != NULL) { 1755 next = attr->next; 1756 free(attr->name); 1757 free(attr->value); 1758 free(attr); 1759 attr = next; 1760 } 1761 list->first = NULL; 1762 list->last = &(list->first); 1763 } 1764 1765 static int 1766 file_new(struct archive_read *a, struct xar *xar, struct xmlattr_list *list) 1767 { 1768 struct xar_file *file; 1769 struct xmlattr *attr; 1770 1771 file = calloc(1, sizeof(*file)); 1772 if (file == NULL) { 1773 archive_set_error(&a->archive, ENOMEM, "Out of memory"); 1774 return (ARCHIVE_FATAL); 1775 } 1776 file->parent = xar->file; 1777 file->mode = 0777 | AE_IFREG; 1778 file->atime = 0; 1779 file->mtime = 0; 1780 xar->file = file; 1781 xar->xattr = NULL; 1782 for (attr = list->first; attr != NULL; attr = attr->next) { 1783 if (strcmp(attr->name, "id") == 0) 1784 file->id = atol10(attr->value, strlen(attr->value)); 1785 } 1786 file->nlink = 1; 1787 if (heap_add_entry(a, &(xar->file_queue), file) != ARCHIVE_OK) 1788 return (ARCHIVE_FATAL); 1789 return (ARCHIVE_OK); 1790 } 1791 1792 static void 1793 file_free(struct xar_file *file) 1794 { 1795 struct xattr *xattr; 1796 1797 archive_string_free(&(file->pathname)); 1798 archive_string_free(&(file->symlink)); 1799 archive_string_free(&(file->uname)); 1800 archive_string_free(&(file->gname)); 1801 archive_string_free(&(file->hardlink)); 1802 xattr = file->xattr_list; 1803 while (xattr != NULL) { 1804 struct xattr *next; 1805 1806 next = xattr->next; 1807 xattr_free(xattr); 1808 xattr = next; 1809 } 1810 1811 free(file); 1812 } 1813 1814 static int 1815 xattr_new(struct archive_read *a, struct xar *xar, struct xmlattr_list *list) 1816 { 1817 struct xattr *xattr, **nx; 1818 struct xmlattr *attr; 1819 1820 xattr = calloc(1, sizeof(*xattr)); 1821 if (xattr == NULL) { 1822 archive_set_error(&a->archive, ENOMEM, "Out of memory"); 1823 return (ARCHIVE_FATAL); 1824 } 1825 xar->xattr = xattr; 1826 for (attr = list->first; attr != NULL; attr = attr->next) { 1827 if (strcmp(attr->name, "id") == 0) 1828 xattr->id = atol10(attr->value, strlen(attr->value)); 1829 } 1830 /* Chain to xattr list. */ 1831 for (nx = &(xar->file->xattr_list); 1832 *nx != NULL; nx = &((*nx)->next)) { 1833 if (xattr->id < (*nx)->id) 1834 break; 1835 } 1836 xattr->next = *nx; 1837 *nx = xattr; 1838 1839 return (ARCHIVE_OK); 1840 } 1841 1842 static void 1843 xattr_free(struct xattr *xattr) 1844 { 1845 archive_string_free(&(xattr->name)); 1846 free(xattr); 1847 } 1848 1849 static int 1850 getencoding(struct xmlattr_list *list) 1851 { 1852 struct xmlattr *attr; 1853 enum enctype encoding = NONE; 1854 1855 for (attr = list->first; attr != NULL; attr = attr->next) { 1856 if (strcmp(attr->name, "style") == 0) { 1857 if (strcmp(attr->value, "application/octet-stream") == 0) 1858 encoding = NONE; 1859 else if (strcmp(attr->value, "application/x-gzip") == 0) 1860 encoding = GZIP; 1861 else if (strcmp(attr->value, "application/x-bzip2") == 0) 1862 encoding = BZIP2; 1863 else if (strcmp(attr->value, "application/x-lzma") == 0) 1864 encoding = LZMA; 1865 else if (strcmp(attr->value, "application/x-xz") == 0) 1866 encoding = XZ; 1867 } 1868 } 1869 return (encoding); 1870 } 1871 1872 static int 1873 getsumalgorithm(struct xmlattr_list *list) 1874 { 1875 struct xmlattr *attr; 1876 int alg = CKSUM_NONE; 1877 1878 for (attr = list->first; attr != NULL; attr = attr->next) { 1879 if (strcmp(attr->name, "style") == 0) { 1880 const char *v = attr->value; 1881 if ((v[0] == 'S' || v[0] == 's') && 1882 (v[1] == 'H' || v[1] == 'h') && 1883 (v[2] == 'A' || v[2] == 'a') && 1884 v[3] == '1' && v[4] == '\0') 1885 alg = CKSUM_SHA1; 1886 if ((v[0] == 'M' || v[0] == 'm') && 1887 (v[1] == 'D' || v[1] == 'd') && 1888 v[2] == '5' && v[3] == '\0') 1889 alg = CKSUM_MD5; 1890 } 1891 } 1892 return (alg); 1893 } 1894 1895 static int 1896 unknowntag_start(struct archive_read *a, struct xar *xar, const char *name) 1897 { 1898 struct unknown_tag *tag; 1899 1900 tag = malloc(sizeof(*tag)); 1901 if (tag == NULL) { 1902 archive_set_error(&a->archive, ENOMEM, "Out of memory"); 1903 return (ARCHIVE_FATAL); 1904 } 1905 tag->next = xar->unknowntags; 1906 archive_string_init(&(tag->name)); 1907 archive_strcpy(&(tag->name), name); 1908 if (xar->unknowntags == NULL) { 1909 #if DEBUG 1910 fprintf(stderr, "UNKNOWNTAG_START:%s\n", name); 1911 #endif 1912 xar->xmlsts_unknown = xar->xmlsts; 1913 xar->xmlsts = UNKNOWN; 1914 } 1915 xar->unknowntags = tag; 1916 return (ARCHIVE_OK); 1917 } 1918 1919 static void 1920 unknowntag_end(struct xar *xar, const char *name) 1921 { 1922 struct unknown_tag *tag; 1923 1924 tag = xar->unknowntags; 1925 if (tag == NULL || name == NULL) 1926 return; 1927 if (strcmp(tag->name.s, name) == 0) { 1928 xar->unknowntags = tag->next; 1929 archive_string_free(&(tag->name)); 1930 free(tag); 1931 if (xar->unknowntags == NULL) { 1932 #if DEBUG 1933 fprintf(stderr, "UNKNOWNTAG_END:%s\n", name); 1934 #endif 1935 xar->xmlsts = xar->xmlsts_unknown; 1936 } 1937 } 1938 } 1939 1940 static int 1941 xml_start(struct archive_read *a, const char *name, struct xmlattr_list *list) 1942 { 1943 struct xar *xar; 1944 struct xmlattr *attr; 1945 1946 xar = (struct xar *)(a->format->data); 1947 1948 #if DEBUG 1949 fprintf(stderr, "xml_sta:[%s]\n", name); 1950 for (attr = list->first; attr != NULL; attr = attr->next) 1951 fprintf(stderr, " attr:\"%s\"=\"%s\"\n", 1952 attr->name, attr->value); 1953 #endif 1954 xar->base64text = 0; 1955 switch (xar->xmlsts) { 1956 case INIT: 1957 if (strcmp(name, "xar") == 0) 1958 xar->xmlsts = XAR; 1959 else 1960 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 1961 return (ARCHIVE_FATAL); 1962 break; 1963 case XAR: 1964 if (strcmp(name, "toc") == 0) 1965 xar->xmlsts = TOC; 1966 else 1967 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 1968 return (ARCHIVE_FATAL); 1969 break; 1970 case TOC: 1971 if (strcmp(name, "creation-time") == 0) 1972 xar->xmlsts = TOC_CREATION_TIME; 1973 else if (strcmp(name, "checksum") == 0) 1974 xar->xmlsts = TOC_CHECKSUM; 1975 else if (strcmp(name, "file") == 0) { 1976 if (file_new(a, xar, list) != ARCHIVE_OK) 1977 return (ARCHIVE_FATAL); 1978 xar->xmlsts = TOC_FILE; 1979 } 1980 else 1981 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 1982 return (ARCHIVE_FATAL); 1983 break; 1984 case TOC_CHECKSUM: 1985 if (strcmp(name, "offset") == 0) 1986 xar->xmlsts = TOC_CHECKSUM_OFFSET; 1987 else if (strcmp(name, "size") == 0) 1988 xar->xmlsts = TOC_CHECKSUM_SIZE; 1989 else 1990 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 1991 return (ARCHIVE_FATAL); 1992 break; 1993 case TOC_FILE: 1994 if (strcmp(name, "file") == 0) { 1995 if (file_new(a, xar, list) != ARCHIVE_OK) 1996 return (ARCHIVE_FATAL); 1997 } 1998 else if (strcmp(name, "data") == 0) 1999 xar->xmlsts = FILE_DATA; 2000 else if (strcmp(name, "ea") == 0) { 2001 if (xattr_new(a, xar, list) != ARCHIVE_OK) 2002 return (ARCHIVE_FATAL); 2003 xar->xmlsts = FILE_EA; 2004 } 2005 else if (strcmp(name, "ctime") == 0) 2006 xar->xmlsts = FILE_CTIME; 2007 else if (strcmp(name, "mtime") == 0) 2008 xar->xmlsts = FILE_MTIME; 2009 else if (strcmp(name, "atime") == 0) 2010 xar->xmlsts = FILE_ATIME; 2011 else if (strcmp(name, "group") == 0) 2012 xar->xmlsts = FILE_GROUP; 2013 else if (strcmp(name, "gid") == 0) 2014 xar->xmlsts = FILE_GID; 2015 else if (strcmp(name, "user") == 0) 2016 xar->xmlsts = FILE_USER; 2017 else if (strcmp(name, "uid") == 0) 2018 xar->xmlsts = FILE_UID; 2019 else if (strcmp(name, "mode") == 0) 2020 xar->xmlsts = FILE_MODE; 2021 else if (strcmp(name, "device") == 0) 2022 xar->xmlsts = FILE_DEVICE; 2023 else if (strcmp(name, "deviceno") == 0) 2024 xar->xmlsts = FILE_DEVICENO; 2025 else if (strcmp(name, "inode") == 0) 2026 xar->xmlsts = FILE_INODE; 2027 else if (strcmp(name, "link") == 0) 2028 xar->xmlsts = FILE_LINK; 2029 else if (strcmp(name, "type") == 0) { 2030 xar->xmlsts = FILE_TYPE; 2031 for (attr = list->first; attr != NULL; 2032 attr = attr->next) { 2033 if (strcmp(attr->name, "link") != 0) 2034 continue; 2035 if (strcmp(attr->value, "original") == 0) { 2036 xar->file->hdnext = xar->hdlink_orgs; 2037 xar->hdlink_orgs = xar->file; 2038 } else { 2039 xar->file->link = (unsigned)atol10(attr->value, 2040 strlen(attr->value)); 2041 if (xar->file->link > 0) 2042 if (add_link(a, xar, xar->file) != ARCHIVE_OK) { 2043 return (ARCHIVE_FATAL); 2044 }; 2045 } 2046 } 2047 } 2048 else if (strcmp(name, "name") == 0) { 2049 xar->xmlsts = FILE_NAME; 2050 for (attr = list->first; attr != NULL; 2051 attr = attr->next) { 2052 if (strcmp(attr->name, "enctype") == 0 && 2053 strcmp(attr->value, "base64") == 0) 2054 xar->base64text = 1; 2055 } 2056 } 2057 else if (strcmp(name, "acl") == 0) 2058 xar->xmlsts = FILE_ACL; 2059 else if (strcmp(name, "flags") == 0) 2060 xar->xmlsts = FILE_FLAGS; 2061 else if (strcmp(name, "ext2") == 0) 2062 xar->xmlsts = FILE_EXT2; 2063 else 2064 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 2065 return (ARCHIVE_FATAL); 2066 break; 2067 case FILE_DATA: 2068 if (strcmp(name, "length") == 0) 2069 xar->xmlsts = FILE_DATA_LENGTH; 2070 else if (strcmp(name, "offset") == 0) 2071 xar->xmlsts = FILE_DATA_OFFSET; 2072 else if (strcmp(name, "size") == 0) 2073 xar->xmlsts = FILE_DATA_SIZE; 2074 else if (strcmp(name, "encoding") == 0) { 2075 xar->xmlsts = FILE_DATA_ENCODING; 2076 xar->file->encoding = getencoding(list); 2077 } 2078 else if (strcmp(name, "archived-checksum") == 0) { 2079 xar->xmlsts = FILE_DATA_A_CHECKSUM; 2080 xar->file->a_sum.alg = getsumalgorithm(list); 2081 } 2082 else if (strcmp(name, "extracted-checksum") == 0) { 2083 xar->xmlsts = FILE_DATA_E_CHECKSUM; 2084 xar->file->e_sum.alg = getsumalgorithm(list); 2085 } 2086 else if (strcmp(name, "content") == 0) 2087 xar->xmlsts = FILE_DATA_CONTENT; 2088 else 2089 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 2090 return (ARCHIVE_FATAL); 2091 break; 2092 case FILE_DEVICE: 2093 if (strcmp(name, "major") == 0) 2094 xar->xmlsts = FILE_DEVICE_MAJOR; 2095 else if (strcmp(name, "minor") == 0) 2096 xar->xmlsts = FILE_DEVICE_MINOR; 2097 else 2098 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 2099 return (ARCHIVE_FATAL); 2100 break; 2101 case FILE_DATA_CONTENT: 2102 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 2103 return (ARCHIVE_FATAL); 2104 break; 2105 case FILE_EA: 2106 if (strcmp(name, "length") == 0) 2107 xar->xmlsts = FILE_EA_LENGTH; 2108 else if (strcmp(name, "offset") == 0) 2109 xar->xmlsts = FILE_EA_OFFSET; 2110 else if (strcmp(name, "size") == 0) 2111 xar->xmlsts = FILE_EA_SIZE; 2112 else if (strcmp(name, "encoding") == 0) { 2113 xar->xmlsts = FILE_EA_ENCODING; 2114 xar->xattr->encoding = getencoding(list); 2115 } else if (strcmp(name, "archived-checksum") == 0) 2116 xar->xmlsts = FILE_EA_A_CHECKSUM; 2117 else if (strcmp(name, "extracted-checksum") == 0) 2118 xar->xmlsts = FILE_EA_E_CHECKSUM; 2119 else if (strcmp(name, "name") == 0) 2120 xar->xmlsts = FILE_EA_NAME; 2121 else if (strcmp(name, "fstype") == 0) 2122 xar->xmlsts = FILE_EA_FSTYPE; 2123 else 2124 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 2125 return (ARCHIVE_FATAL); 2126 break; 2127 case FILE_ACL: 2128 if (strcmp(name, "appleextended") == 0) 2129 xar->xmlsts = FILE_ACL_APPLEEXTENDED; 2130 else if (strcmp(name, "default") == 0) 2131 xar->xmlsts = FILE_ACL_DEFAULT; 2132 else if (strcmp(name, "access") == 0) 2133 xar->xmlsts = FILE_ACL_ACCESS; 2134 else 2135 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 2136 return (ARCHIVE_FATAL); 2137 break; 2138 case FILE_FLAGS: 2139 if (!xml_parse_file_flags(xar, name)) 2140 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 2141 return (ARCHIVE_FATAL); 2142 break; 2143 case FILE_EXT2: 2144 if (!xml_parse_file_ext2(xar, name)) 2145 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 2146 return (ARCHIVE_FATAL); 2147 break; 2148 case TOC_CREATION_TIME: 2149 case TOC_CHECKSUM_OFFSET: 2150 case TOC_CHECKSUM_SIZE: 2151 case FILE_DATA_LENGTH: 2152 case FILE_DATA_OFFSET: 2153 case FILE_DATA_SIZE: 2154 case FILE_DATA_ENCODING: 2155 case FILE_DATA_A_CHECKSUM: 2156 case FILE_DATA_E_CHECKSUM: 2157 case FILE_EA_LENGTH: 2158 case FILE_EA_OFFSET: 2159 case FILE_EA_SIZE: 2160 case FILE_EA_ENCODING: 2161 case FILE_EA_A_CHECKSUM: 2162 case FILE_EA_E_CHECKSUM: 2163 case FILE_EA_NAME: 2164 case FILE_EA_FSTYPE: 2165 case FILE_CTIME: 2166 case FILE_MTIME: 2167 case FILE_ATIME: 2168 case FILE_GROUP: 2169 case FILE_GID: 2170 case FILE_USER: 2171 case FILE_UID: 2172 case FILE_INODE: 2173 case FILE_DEVICE_MAJOR: 2174 case FILE_DEVICE_MINOR: 2175 case FILE_DEVICENO: 2176 case FILE_MODE: 2177 case FILE_TYPE: 2178 case FILE_LINK: 2179 case FILE_NAME: 2180 case FILE_ACL_DEFAULT: 2181 case FILE_ACL_ACCESS: 2182 case FILE_ACL_APPLEEXTENDED: 2183 case FILE_FLAGS_USER_NODUMP: 2184 case FILE_FLAGS_USER_IMMUTABLE: 2185 case FILE_FLAGS_USER_APPEND: 2186 case FILE_FLAGS_USER_OPAQUE: 2187 case FILE_FLAGS_USER_NOUNLINK: 2188 case FILE_FLAGS_SYS_ARCHIVED: 2189 case FILE_FLAGS_SYS_IMMUTABLE: 2190 case FILE_FLAGS_SYS_APPEND: 2191 case FILE_FLAGS_SYS_NOUNLINK: 2192 case FILE_FLAGS_SYS_SNAPSHOT: 2193 case FILE_EXT2_SecureDeletion: 2194 case FILE_EXT2_Undelete: 2195 case FILE_EXT2_Compress: 2196 case FILE_EXT2_Synchronous: 2197 case FILE_EXT2_Immutable: 2198 case FILE_EXT2_AppendOnly: 2199 case FILE_EXT2_NoDump: 2200 case FILE_EXT2_NoAtime: 2201 case FILE_EXT2_CompDirty: 2202 case FILE_EXT2_CompBlock: 2203 case FILE_EXT2_NoCompBlock: 2204 case FILE_EXT2_CompError: 2205 case FILE_EXT2_BTree: 2206 case FILE_EXT2_HashIndexed: 2207 case FILE_EXT2_iMagic: 2208 case FILE_EXT2_Journaled: 2209 case FILE_EXT2_NoTail: 2210 case FILE_EXT2_DirSync: 2211 case FILE_EXT2_TopDir: 2212 case FILE_EXT2_Reserved: 2213 case UNKNOWN: 2214 if (unknowntag_start(a, xar, name) != ARCHIVE_OK) 2215 return (ARCHIVE_FATAL); 2216 break; 2217 } 2218 return (ARCHIVE_OK); 2219 } 2220 2221 static void 2222 xml_end(void *userData, const char *name) 2223 { 2224 struct archive_read *a; 2225 struct xar *xar; 2226 2227 a = (struct archive_read *)userData; 2228 xar = (struct xar *)(a->format->data); 2229 2230 #if DEBUG 2231 fprintf(stderr, "xml_end:[%s]\n", name); 2232 #endif 2233 switch (xar->xmlsts) { 2234 case INIT: 2235 break; 2236 case XAR: 2237 if (strcmp(name, "xar") == 0) 2238 xar->xmlsts = INIT; 2239 break; 2240 case TOC: 2241 if (strcmp(name, "toc") == 0) 2242 xar->xmlsts = XAR; 2243 break; 2244 case TOC_CREATION_TIME: 2245 if (strcmp(name, "creation-time") == 0) 2246 xar->xmlsts = TOC; 2247 break; 2248 case TOC_CHECKSUM: 2249 if (strcmp(name, "checksum") == 0) 2250 xar->xmlsts = TOC; 2251 break; 2252 case TOC_CHECKSUM_OFFSET: 2253 if (strcmp(name, "offset") == 0) 2254 xar->xmlsts = TOC_CHECKSUM; 2255 break; 2256 case TOC_CHECKSUM_SIZE: 2257 if (strcmp(name, "size") == 0) 2258 xar->xmlsts = TOC_CHECKSUM; 2259 break; 2260 case TOC_FILE: 2261 if (strcmp(name, "file") == 0) { 2262 if (xar->file->parent != NULL && 2263 ((xar->file->mode & AE_IFMT) == AE_IFDIR)) 2264 xar->file->parent->subdirs++; 2265 xar->file = xar->file->parent; 2266 if (xar->file == NULL) 2267 xar->xmlsts = TOC; 2268 } 2269 break; 2270 case FILE_DATA: 2271 if (strcmp(name, "data") == 0) 2272 xar->xmlsts = TOC_FILE; 2273 break; 2274 case FILE_DATA_LENGTH: 2275 if (strcmp(name, "length") == 0) 2276 xar->xmlsts = FILE_DATA; 2277 break; 2278 case FILE_DATA_OFFSET: 2279 if (strcmp(name, "offset") == 0) 2280 xar->xmlsts = FILE_DATA; 2281 break; 2282 case FILE_DATA_SIZE: 2283 if (strcmp(name, "size") == 0) 2284 xar->xmlsts = FILE_DATA; 2285 break; 2286 case FILE_DATA_ENCODING: 2287 if (strcmp(name, "encoding") == 0) 2288 xar->xmlsts = FILE_DATA; 2289 break; 2290 case FILE_DATA_A_CHECKSUM: 2291 if (strcmp(name, "archived-checksum") == 0) 2292 xar->xmlsts = FILE_DATA; 2293 break; 2294 case FILE_DATA_E_CHECKSUM: 2295 if (strcmp(name, "extracted-checksum") == 0) 2296 xar->xmlsts = FILE_DATA; 2297 break; 2298 case FILE_DATA_CONTENT: 2299 if (strcmp(name, "content") == 0) 2300 xar->xmlsts = FILE_DATA; 2301 break; 2302 case FILE_EA: 2303 if (strcmp(name, "ea") == 0) { 2304 xar->xmlsts = TOC_FILE; 2305 xar->xattr = NULL; 2306 } 2307 break; 2308 case FILE_EA_LENGTH: 2309 if (strcmp(name, "length") == 0) 2310 xar->xmlsts = FILE_EA; 2311 break; 2312 case FILE_EA_OFFSET: 2313 if (strcmp(name, "offset") == 0) 2314 xar->xmlsts = FILE_EA; 2315 break; 2316 case FILE_EA_SIZE: 2317 if (strcmp(name, "size") == 0) 2318 xar->xmlsts = FILE_EA; 2319 break; 2320 case FILE_EA_ENCODING: 2321 if (strcmp(name, "encoding") == 0) 2322 xar->xmlsts = FILE_EA; 2323 break; 2324 case FILE_EA_A_CHECKSUM: 2325 if (strcmp(name, "archived-checksum") == 0) 2326 xar->xmlsts = FILE_EA; 2327 break; 2328 case FILE_EA_E_CHECKSUM: 2329 if (strcmp(name, "extracted-checksum") == 0) 2330 xar->xmlsts = FILE_EA; 2331 break; 2332 case FILE_EA_NAME: 2333 if (strcmp(name, "name") == 0) 2334 xar->xmlsts = FILE_EA; 2335 break; 2336 case FILE_EA_FSTYPE: 2337 if (strcmp(name, "fstype") == 0) 2338 xar->xmlsts = FILE_EA; 2339 break; 2340 case FILE_CTIME: 2341 if (strcmp(name, "ctime") == 0) 2342 xar->xmlsts = TOC_FILE; 2343 break; 2344 case FILE_MTIME: 2345 if (strcmp(name, "mtime") == 0) 2346 xar->xmlsts = TOC_FILE; 2347 break; 2348 case FILE_ATIME: 2349 if (strcmp(name, "atime") == 0) 2350 xar->xmlsts = TOC_FILE; 2351 break; 2352 case FILE_GROUP: 2353 if (strcmp(name, "group") == 0) 2354 xar->xmlsts = TOC_FILE; 2355 break; 2356 case FILE_GID: 2357 if (strcmp(name, "gid") == 0) 2358 xar->xmlsts = TOC_FILE; 2359 break; 2360 case FILE_USER: 2361 if (strcmp(name, "user") == 0) 2362 xar->xmlsts = TOC_FILE; 2363 break; 2364 case FILE_UID: 2365 if (strcmp(name, "uid") == 0) 2366 xar->xmlsts = TOC_FILE; 2367 break; 2368 case FILE_MODE: 2369 if (strcmp(name, "mode") == 0) 2370 xar->xmlsts = TOC_FILE; 2371 break; 2372 case FILE_DEVICE: 2373 if (strcmp(name, "device") == 0) 2374 xar->xmlsts = TOC_FILE; 2375 break; 2376 case FILE_DEVICE_MAJOR: 2377 if (strcmp(name, "major") == 0) 2378 xar->xmlsts = FILE_DEVICE; 2379 break; 2380 case FILE_DEVICE_MINOR: 2381 if (strcmp(name, "minor") == 0) 2382 xar->xmlsts = FILE_DEVICE; 2383 break; 2384 case FILE_DEVICENO: 2385 if (strcmp(name, "deviceno") == 0) 2386 xar->xmlsts = TOC_FILE; 2387 break; 2388 case FILE_INODE: 2389 if (strcmp(name, "inode") == 0) 2390 xar->xmlsts = TOC_FILE; 2391 break; 2392 case FILE_LINK: 2393 if (strcmp(name, "link") == 0) 2394 xar->xmlsts = TOC_FILE; 2395 break; 2396 case FILE_TYPE: 2397 if (strcmp(name, "type") == 0) 2398 xar->xmlsts = TOC_FILE; 2399 break; 2400 case FILE_NAME: 2401 if (strcmp(name, "name") == 0) 2402 xar->xmlsts = TOC_FILE; 2403 break; 2404 case FILE_ACL: 2405 if (strcmp(name, "acl") == 0) 2406 xar->xmlsts = TOC_FILE; 2407 break; 2408 case FILE_ACL_DEFAULT: 2409 if (strcmp(name, "default") == 0) 2410 xar->xmlsts = FILE_ACL; 2411 break; 2412 case FILE_ACL_ACCESS: 2413 if (strcmp(name, "access") == 0) 2414 xar->xmlsts = FILE_ACL; 2415 break; 2416 case FILE_ACL_APPLEEXTENDED: 2417 if (strcmp(name, "appleextended") == 0) 2418 xar->xmlsts = FILE_ACL; 2419 break; 2420 case FILE_FLAGS: 2421 if (strcmp(name, "flags") == 0) 2422 xar->xmlsts = TOC_FILE; 2423 break; 2424 case FILE_FLAGS_USER_NODUMP: 2425 if (strcmp(name, "UserNoDump") == 0) 2426 xar->xmlsts = FILE_FLAGS; 2427 break; 2428 case FILE_FLAGS_USER_IMMUTABLE: 2429 if (strcmp(name, "UserImmutable") == 0) 2430 xar->xmlsts = FILE_FLAGS; 2431 break; 2432 case FILE_FLAGS_USER_APPEND: 2433 if (strcmp(name, "UserAppend") == 0) 2434 xar->xmlsts = FILE_FLAGS; 2435 break; 2436 case FILE_FLAGS_USER_OPAQUE: 2437 if (strcmp(name, "UserOpaque") == 0) 2438 xar->xmlsts = FILE_FLAGS; 2439 break; 2440 case FILE_FLAGS_USER_NOUNLINK: 2441 if (strcmp(name, "UserNoUnlink") == 0) 2442 xar->xmlsts = FILE_FLAGS; 2443 break; 2444 case FILE_FLAGS_SYS_ARCHIVED: 2445 if (strcmp(name, "SystemArchived") == 0) 2446 xar->xmlsts = FILE_FLAGS; 2447 break; 2448 case FILE_FLAGS_SYS_IMMUTABLE: 2449 if (strcmp(name, "SystemImmutable") == 0) 2450 xar->xmlsts = FILE_FLAGS; 2451 break; 2452 case FILE_FLAGS_SYS_APPEND: 2453 if (strcmp(name, "SystemAppend") == 0) 2454 xar->xmlsts = FILE_FLAGS; 2455 break; 2456 case FILE_FLAGS_SYS_NOUNLINK: 2457 if (strcmp(name, "SystemNoUnlink") == 0) 2458 xar->xmlsts = FILE_FLAGS; 2459 break; 2460 case FILE_FLAGS_SYS_SNAPSHOT: 2461 if (strcmp(name, "SystemSnapshot") == 0) 2462 xar->xmlsts = FILE_FLAGS; 2463 break; 2464 case FILE_EXT2: 2465 if (strcmp(name, "ext2") == 0) 2466 xar->xmlsts = TOC_FILE; 2467 break; 2468 case FILE_EXT2_SecureDeletion: 2469 if (strcmp(name, "SecureDeletion") == 0) 2470 xar->xmlsts = FILE_EXT2; 2471 break; 2472 case FILE_EXT2_Undelete: 2473 if (strcmp(name, "Undelete") == 0) 2474 xar->xmlsts = FILE_EXT2; 2475 break; 2476 case FILE_EXT2_Compress: 2477 if (strcmp(name, "Compress") == 0) 2478 xar->xmlsts = FILE_EXT2; 2479 break; 2480 case FILE_EXT2_Synchronous: 2481 if (strcmp(name, "Synchronous") == 0) 2482 xar->xmlsts = FILE_EXT2; 2483 break; 2484 case FILE_EXT2_Immutable: 2485 if (strcmp(name, "Immutable") == 0) 2486 xar->xmlsts = FILE_EXT2; 2487 break; 2488 case FILE_EXT2_AppendOnly: 2489 if (strcmp(name, "AppendOnly") == 0) 2490 xar->xmlsts = FILE_EXT2; 2491 break; 2492 case FILE_EXT2_NoDump: 2493 if (strcmp(name, "NoDump") == 0) 2494 xar->xmlsts = FILE_EXT2; 2495 break; 2496 case FILE_EXT2_NoAtime: 2497 if (strcmp(name, "NoAtime") == 0) 2498 xar->xmlsts = FILE_EXT2; 2499 break; 2500 case FILE_EXT2_CompDirty: 2501 if (strcmp(name, "CompDirty") == 0) 2502 xar->xmlsts = FILE_EXT2; 2503 break; 2504 case FILE_EXT2_CompBlock: 2505 if (strcmp(name, "CompBlock") == 0) 2506 xar->xmlsts = FILE_EXT2; 2507 break; 2508 case FILE_EXT2_NoCompBlock: 2509 if (strcmp(name, "NoCompBlock") == 0) 2510 xar->xmlsts = FILE_EXT2; 2511 break; 2512 case FILE_EXT2_CompError: 2513 if (strcmp(name, "CompError") == 0) 2514 xar->xmlsts = FILE_EXT2; 2515 break; 2516 case FILE_EXT2_BTree: 2517 if (strcmp(name, "BTree") == 0) 2518 xar->xmlsts = FILE_EXT2; 2519 break; 2520 case FILE_EXT2_HashIndexed: 2521 if (strcmp(name, "HashIndexed") == 0) 2522 xar->xmlsts = FILE_EXT2; 2523 break; 2524 case FILE_EXT2_iMagic: 2525 if (strcmp(name, "iMagic") == 0) 2526 xar->xmlsts = FILE_EXT2; 2527 break; 2528 case FILE_EXT2_Journaled: 2529 if (strcmp(name, "Journaled") == 0) 2530 xar->xmlsts = FILE_EXT2; 2531 break; 2532 case FILE_EXT2_NoTail: 2533 if (strcmp(name, "NoTail") == 0) 2534 xar->xmlsts = FILE_EXT2; 2535 break; 2536 case FILE_EXT2_DirSync: 2537 if (strcmp(name, "DirSync") == 0) 2538 xar->xmlsts = FILE_EXT2; 2539 break; 2540 case FILE_EXT2_TopDir: 2541 if (strcmp(name, "TopDir") == 0) 2542 xar->xmlsts = FILE_EXT2; 2543 break; 2544 case FILE_EXT2_Reserved: 2545 if (strcmp(name, "Reserved") == 0) 2546 xar->xmlsts = FILE_EXT2; 2547 break; 2548 case UNKNOWN: 2549 unknowntag_end(xar, name); 2550 break; 2551 } 2552 } 2553 2554 static const int base64[256] = { 2555 -1, -1, -1, -1, -1, -1, -1, -1, 2556 -1, -1, -1, -1, -1, -1, -1, -1, /* 00 - 0F */ 2557 -1, -1, -1, -1, -1, -1, -1, -1, 2558 -1, -1, -1, -1, -1, -1, -1, -1, /* 10 - 1F */ 2559 -1, -1, -1, -1, -1, -1, -1, -1, 2560 -1, -1, -1, 62, -1, -1, -1, 63, /* 20 - 2F */ 2561 52, 53, 54, 55, 56, 57, 58, 59, 2562 60, 61, -1, -1, -1, -1, -1, -1, /* 30 - 3F */ 2563 -1, 0, 1, 2, 3, 4, 5, 6, 2564 7, 8, 9, 10, 11, 12, 13, 14, /* 40 - 4F */ 2565 15, 16, 17, 18, 19, 20, 21, 22, 2566 23, 24, 25, -1, -1, -1, -1, -1, /* 50 - 5F */ 2567 -1, 26, 27, 28, 29, 30, 31, 32, 2568 33, 34, 35, 36, 37, 38, 39, 40, /* 60 - 6F */ 2569 41, 42, 43, 44, 45, 46, 47, 48, 2570 49, 50, 51, -1, -1, -1, -1, -1, /* 70 - 7F */ 2571 -1, -1, -1, -1, -1, -1, -1, -1, 2572 -1, -1, -1, -1, -1, -1, -1, -1, /* 80 - 8F */ 2573 -1, -1, -1, -1, -1, -1, -1, -1, 2574 -1, -1, -1, -1, -1, -1, -1, -1, /* 90 - 9F */ 2575 -1, -1, -1, -1, -1, -1, -1, -1, 2576 -1, -1, -1, -1, -1, -1, -1, -1, /* A0 - AF */ 2577 -1, -1, -1, -1, -1, -1, -1, -1, 2578 -1, -1, -1, -1, -1, -1, -1, -1, /* B0 - BF */ 2579 -1, -1, -1, -1, -1, -1, -1, -1, 2580 -1, -1, -1, -1, -1, -1, -1, -1, /* C0 - CF */ 2581 -1, -1, -1, -1, -1, -1, -1, -1, 2582 -1, -1, -1, -1, -1, -1, -1, -1, /* D0 - DF */ 2583 -1, -1, -1, -1, -1, -1, -1, -1, 2584 -1, -1, -1, -1, -1, -1, -1, -1, /* E0 - EF */ 2585 -1, -1, -1, -1, -1, -1, -1, -1, 2586 -1, -1, -1, -1, -1, -1, -1, -1, /* F0 - FF */ 2587 }; 2588 2589 static void 2590 strappend_base64(struct xar *xar, 2591 struct archive_string *as, const char *s, size_t l) 2592 { 2593 unsigned char buff[256]; 2594 unsigned char *out; 2595 const unsigned char *b; 2596 size_t len; 2597 2598 (void)xar; /* UNUSED */ 2599 len = 0; 2600 out = buff; 2601 b = (const unsigned char *)s; 2602 while (l > 0) { 2603 int n = 0; 2604 2605 if (l > 0) { 2606 if (base64[b[0]] < 0 || base64[b[1]] < 0) 2607 break; 2608 n = base64[*b++] << 18; 2609 n |= base64[*b++] << 12; 2610 *out++ = n >> 16; 2611 len++; 2612 l -= 2; 2613 } 2614 if (l > 0) { 2615 if (base64[*b] < 0) 2616 break; 2617 n |= base64[*b++] << 6; 2618 *out++ = (n >> 8) & 0xFF; 2619 len++; 2620 --l; 2621 } 2622 if (l > 0) { 2623 if (base64[*b] < 0) 2624 break; 2625 n |= base64[*b++]; 2626 *out++ = n & 0xFF; 2627 len++; 2628 --l; 2629 } 2630 if (len+3 >= sizeof(buff)) { 2631 archive_strncat(as, (const char *)buff, len); 2632 len = 0; 2633 out = buff; 2634 } 2635 } 2636 if (len > 0) 2637 archive_strncat(as, (const char *)buff, len); 2638 } 2639 2640 static int 2641 is_string(const char *known, const char *data, size_t len) 2642 { 2643 if (strlen(known) != len) 2644 return -1; 2645 return memcmp(data, known, len); 2646 } 2647 2648 static void 2649 xml_data(void *userData, const char *s, int len) 2650 { 2651 struct archive_read *a; 2652 struct xar *xar; 2653 2654 a = (struct archive_read *)userData; 2655 xar = (struct xar *)(a->format->data); 2656 2657 #if DEBUG 2658 { 2659 char buff[1024]; 2660 if (len > (int)(sizeof(buff)-1)) 2661 len = (int)(sizeof(buff)-1); 2662 strncpy(buff, s, len); 2663 buff[len] = 0; 2664 fprintf(stderr, "\tlen=%d:\"%s\"\n", len, buff); 2665 } 2666 #endif 2667 switch (xar->xmlsts) { 2668 case TOC_CHECKSUM_OFFSET: 2669 xar->toc_chksum_offset = atol10(s, len); 2670 break; 2671 case TOC_CHECKSUM_SIZE: 2672 xar->toc_chksum_size = atol10(s, len); 2673 break; 2674 default: 2675 break; 2676 } 2677 if (xar->file == NULL) 2678 return; 2679 2680 switch (xar->xmlsts) { 2681 case FILE_NAME: 2682 if (xar->file->parent != NULL) { 2683 archive_string_concat(&(xar->file->pathname), 2684 &(xar->file->parent->pathname)); 2685 archive_strappend_char(&(xar->file->pathname), '/'); 2686 } 2687 xar->file->has |= HAS_PATHNAME; 2688 if (xar->base64text) { 2689 strappend_base64(xar, 2690 &(xar->file->pathname), s, len); 2691 } else 2692 archive_strncat(&(xar->file->pathname), s, len); 2693 break; 2694 case FILE_LINK: 2695 xar->file->has |= HAS_SYMLINK; 2696 archive_strncpy(&(xar->file->symlink), s, len); 2697 break; 2698 case FILE_TYPE: 2699 if (is_string("file", s, len) == 0 || 2700 is_string("hardlink", s, len) == 0) 2701 xar->file->mode = 2702 (xar->file->mode & ~AE_IFMT) | AE_IFREG; 2703 if (is_string("directory", s, len) == 0) 2704 xar->file->mode = 2705 (xar->file->mode & ~AE_IFMT) | AE_IFDIR; 2706 if (is_string("symlink", s, len) == 0) 2707 xar->file->mode = 2708 (xar->file->mode & ~AE_IFMT) | AE_IFLNK; 2709 if (is_string("character special", s, len) == 0) 2710 xar->file->mode = 2711 (xar->file->mode & ~AE_IFMT) | AE_IFCHR; 2712 if (is_string("block special", s, len) == 0) 2713 xar->file->mode = 2714 (xar->file->mode & ~AE_IFMT) | AE_IFBLK; 2715 if (is_string("socket", s, len) == 0) 2716 xar->file->mode = 2717 (xar->file->mode & ~AE_IFMT) | AE_IFSOCK; 2718 if (is_string("fifo", s, len) == 0) 2719 xar->file->mode = 2720 (xar->file->mode & ~AE_IFMT) | AE_IFIFO; 2721 xar->file->has |= HAS_TYPE; 2722 break; 2723 case FILE_INODE: 2724 xar->file->has |= HAS_INO; 2725 xar->file->ino64 = atol10(s, len); 2726 break; 2727 case FILE_DEVICE_MAJOR: 2728 xar->file->has |= HAS_DEVMAJOR; 2729 xar->file->devmajor = (dev_t)atol10(s, len); 2730 break; 2731 case FILE_DEVICE_MINOR: 2732 xar->file->has |= HAS_DEVMINOR; 2733 xar->file->devminor = (dev_t)atol10(s, len); 2734 break; 2735 case FILE_DEVICENO: 2736 xar->file->has |= HAS_DEV; 2737 xar->file->dev = (dev_t)atol10(s, len); 2738 break; 2739 case FILE_MODE: 2740 xar->file->has |= HAS_MODE; 2741 xar->file->mode = 2742 (xar->file->mode & AE_IFMT) | 2743 ((mode_t)(atol8(s, len)) & ~AE_IFMT); 2744 break; 2745 case FILE_GROUP: 2746 xar->file->has |= HAS_GID; 2747 archive_strncpy(&(xar->file->gname), s, len); 2748 break; 2749 case FILE_GID: 2750 xar->file->has |= HAS_GID; 2751 xar->file->gid = atol10(s, len); 2752 break; 2753 case FILE_USER: 2754 xar->file->has |= HAS_UID; 2755 archive_strncpy(&(xar->file->uname), s, len); 2756 break; 2757 case FILE_UID: 2758 xar->file->has |= HAS_UID; 2759 xar->file->uid = atol10(s, len); 2760 break; 2761 case FILE_CTIME: 2762 xar->file->has |= HAS_TIME | HAS_CTIME; 2763 xar->file->ctime = parse_time(s, len); 2764 break; 2765 case FILE_MTIME: 2766 xar->file->has |= HAS_TIME | HAS_MTIME; 2767 xar->file->mtime = parse_time(s, len); 2768 break; 2769 case FILE_ATIME: 2770 xar->file->has |= HAS_TIME | HAS_ATIME; 2771 xar->file->atime = parse_time(s, len); 2772 break; 2773 case FILE_DATA_LENGTH: 2774 xar->file->has |= HAS_DATA; 2775 xar->file->length = atol10(s, len); 2776 break; 2777 case FILE_DATA_OFFSET: 2778 xar->file->has |= HAS_DATA; 2779 xar->file->offset = atol10(s, len); 2780 break; 2781 case FILE_DATA_SIZE: 2782 xar->file->has |= HAS_DATA; 2783 xar->file->size = atol10(s, len); 2784 break; 2785 case FILE_DATA_A_CHECKSUM: 2786 xar->file->a_sum.len = atohex(xar->file->a_sum.val, 2787 sizeof(xar->file->a_sum.val), s, len); 2788 break; 2789 case FILE_DATA_E_CHECKSUM: 2790 xar->file->e_sum.len = atohex(xar->file->e_sum.val, 2791 sizeof(xar->file->e_sum.val), s, len); 2792 break; 2793 case FILE_EA_LENGTH: 2794 xar->file->has |= HAS_XATTR; 2795 xar->xattr->length = atol10(s, len); 2796 break; 2797 case FILE_EA_OFFSET: 2798 xar->file->has |= HAS_XATTR; 2799 xar->xattr->offset = atol10(s, len); 2800 break; 2801 case FILE_EA_SIZE: 2802 xar->file->has |= HAS_XATTR; 2803 xar->xattr->size = atol10(s, len); 2804 break; 2805 case FILE_EA_A_CHECKSUM: 2806 xar->file->has |= HAS_XATTR; 2807 xar->xattr->a_sum.len = atohex(xar->xattr->a_sum.val, 2808 sizeof(xar->xattr->a_sum.val), s, len); 2809 break; 2810 case FILE_EA_E_CHECKSUM: 2811 xar->file->has |= HAS_XATTR; 2812 xar->xattr->e_sum.len = atohex(xar->xattr->e_sum.val, 2813 sizeof(xar->xattr->e_sum.val), s, len); 2814 break; 2815 case FILE_EA_NAME: 2816 xar->file->has |= HAS_XATTR; 2817 archive_strncpy(&(xar->xattr->name), s, len); 2818 break; 2819 case FILE_EA_FSTYPE: 2820 xar->file->has |= HAS_XATTR; 2821 archive_strncpy(&(xar->xattr->fstype), s, len); 2822 break; 2823 break; 2824 case FILE_ACL_DEFAULT: 2825 case FILE_ACL_ACCESS: 2826 case FILE_ACL_APPLEEXTENDED: 2827 xar->file->has |= HAS_ACL; 2828 /* TODO */ 2829 break; 2830 case INIT: 2831 case XAR: 2832 case TOC: 2833 case TOC_CREATION_TIME: 2834 case TOC_CHECKSUM: 2835 case TOC_CHECKSUM_OFFSET: 2836 case TOC_CHECKSUM_SIZE: 2837 case TOC_FILE: 2838 case FILE_DATA: 2839 case FILE_DATA_ENCODING: 2840 case FILE_DATA_CONTENT: 2841 case FILE_DEVICE: 2842 case FILE_EA: 2843 case FILE_EA_ENCODING: 2844 case FILE_ACL: 2845 case FILE_FLAGS: 2846 case FILE_FLAGS_USER_NODUMP: 2847 case FILE_FLAGS_USER_IMMUTABLE: 2848 case FILE_FLAGS_USER_APPEND: 2849 case FILE_FLAGS_USER_OPAQUE: 2850 case FILE_FLAGS_USER_NOUNLINK: 2851 case FILE_FLAGS_SYS_ARCHIVED: 2852 case FILE_FLAGS_SYS_IMMUTABLE: 2853 case FILE_FLAGS_SYS_APPEND: 2854 case FILE_FLAGS_SYS_NOUNLINK: 2855 case FILE_FLAGS_SYS_SNAPSHOT: 2856 case FILE_EXT2: 2857 case FILE_EXT2_SecureDeletion: 2858 case FILE_EXT2_Undelete: 2859 case FILE_EXT2_Compress: 2860 case FILE_EXT2_Synchronous: 2861 case FILE_EXT2_Immutable: 2862 case FILE_EXT2_AppendOnly: 2863 case FILE_EXT2_NoDump: 2864 case FILE_EXT2_NoAtime: 2865 case FILE_EXT2_CompDirty: 2866 case FILE_EXT2_CompBlock: 2867 case FILE_EXT2_NoCompBlock: 2868 case FILE_EXT2_CompError: 2869 case FILE_EXT2_BTree: 2870 case FILE_EXT2_HashIndexed: 2871 case FILE_EXT2_iMagic: 2872 case FILE_EXT2_Journaled: 2873 case FILE_EXT2_NoTail: 2874 case FILE_EXT2_DirSync: 2875 case FILE_EXT2_TopDir: 2876 case FILE_EXT2_Reserved: 2877 case UNKNOWN: 2878 break; 2879 } 2880 } 2881 2882 /* 2883 * BSD file flags. 2884 */ 2885 static int 2886 xml_parse_file_flags(struct xar *xar, const char *name) 2887 { 2888 const char *flag = NULL; 2889 2890 if (strcmp(name, "UserNoDump") == 0) { 2891 xar->xmlsts = FILE_FLAGS_USER_NODUMP; 2892 flag = "nodump"; 2893 } 2894 else if (strcmp(name, "UserImmutable") == 0) { 2895 xar->xmlsts = FILE_FLAGS_USER_IMMUTABLE; 2896 flag = "uimmutable"; 2897 } 2898 else if (strcmp(name, "UserAppend") == 0) { 2899 xar->xmlsts = FILE_FLAGS_USER_APPEND; 2900 flag = "uappend"; 2901 } 2902 else if (strcmp(name, "UserOpaque") == 0) { 2903 xar->xmlsts = FILE_FLAGS_USER_OPAQUE; 2904 flag = "opaque"; 2905 } 2906 else if (strcmp(name, "UserNoUnlink") == 0) { 2907 xar->xmlsts = FILE_FLAGS_USER_NOUNLINK; 2908 flag = "nouunlink"; 2909 } 2910 else if (strcmp(name, "SystemArchived") == 0) { 2911 xar->xmlsts = FILE_FLAGS_SYS_ARCHIVED; 2912 flag = "archived"; 2913 } 2914 else if (strcmp(name, "SystemImmutable") == 0) { 2915 xar->xmlsts = FILE_FLAGS_SYS_IMMUTABLE; 2916 flag = "simmutable"; 2917 } 2918 else if (strcmp(name, "SystemAppend") == 0) { 2919 xar->xmlsts = FILE_FLAGS_SYS_APPEND; 2920 flag = "sappend"; 2921 } 2922 else if (strcmp(name, "SystemNoUnlink") == 0) { 2923 xar->xmlsts = FILE_FLAGS_SYS_NOUNLINK; 2924 flag = "nosunlink"; 2925 } 2926 else if (strcmp(name, "SystemSnapshot") == 0) { 2927 xar->xmlsts = FILE_FLAGS_SYS_SNAPSHOT; 2928 flag = "snapshot"; 2929 } 2930 2931 if (flag == NULL) 2932 return (0); 2933 xar->file->has |= HAS_FFLAGS; 2934 if (archive_strlen(&(xar->file->fflags_text)) > 0) 2935 archive_strappend_char(&(xar->file->fflags_text), ','); 2936 archive_strcat(&(xar->file->fflags_text), flag); 2937 return (1); 2938 } 2939 2940 /* 2941 * Linux file flags. 2942 */ 2943 static int 2944 xml_parse_file_ext2(struct xar *xar, const char *name) 2945 { 2946 const char *flag = NULL; 2947 2948 if (strcmp(name, "SecureDeletion") == 0) { 2949 xar->xmlsts = FILE_EXT2_SecureDeletion; 2950 flag = "securedeletion"; 2951 } 2952 else if (strcmp(name, "Undelete") == 0) { 2953 xar->xmlsts = FILE_EXT2_Undelete; 2954 flag = "nouunlink"; 2955 } 2956 else if (strcmp(name, "Compress") == 0) { 2957 xar->xmlsts = FILE_EXT2_Compress; 2958 flag = "compress"; 2959 } 2960 else if (strcmp(name, "Synchronous") == 0) { 2961 xar->xmlsts = FILE_EXT2_Synchronous; 2962 flag = "sync"; 2963 } 2964 else if (strcmp(name, "Immutable") == 0) { 2965 xar->xmlsts = FILE_EXT2_Immutable; 2966 flag = "simmutable"; 2967 } 2968 else if (strcmp(name, "AppendOnly") == 0) { 2969 xar->xmlsts = FILE_EXT2_AppendOnly; 2970 flag = "sappend"; 2971 } 2972 else if (strcmp(name, "NoDump") == 0) { 2973 xar->xmlsts = FILE_EXT2_NoDump; 2974 flag = "nodump"; 2975 } 2976 else if (strcmp(name, "NoAtime") == 0) { 2977 xar->xmlsts = FILE_EXT2_NoAtime; 2978 flag = "noatime"; 2979 } 2980 else if (strcmp(name, "CompDirty") == 0) { 2981 xar->xmlsts = FILE_EXT2_CompDirty; 2982 flag = "compdirty"; 2983 } 2984 else if (strcmp(name, "CompBlock") == 0) { 2985 xar->xmlsts = FILE_EXT2_CompBlock; 2986 flag = "comprblk"; 2987 } 2988 else if (strcmp(name, "NoCompBlock") == 0) { 2989 xar->xmlsts = FILE_EXT2_NoCompBlock; 2990 flag = "nocomprblk"; 2991 } 2992 else if (strcmp(name, "CompError") == 0) { 2993 xar->xmlsts = FILE_EXT2_CompError; 2994 flag = "comperr"; 2995 } 2996 else if (strcmp(name, "BTree") == 0) { 2997 xar->xmlsts = FILE_EXT2_BTree; 2998 flag = "btree"; 2999 } 3000 else if (strcmp(name, "HashIndexed") == 0) { 3001 xar->xmlsts = FILE_EXT2_HashIndexed; 3002 flag = "hashidx"; 3003 } 3004 else if (strcmp(name, "iMagic") == 0) { 3005 xar->xmlsts = FILE_EXT2_iMagic; 3006 flag = "imagic"; 3007 } 3008 else if (strcmp(name, "Journaled") == 0) { 3009 xar->xmlsts = FILE_EXT2_Journaled; 3010 flag = "journal"; 3011 } 3012 else if (strcmp(name, "NoTail") == 0) { 3013 xar->xmlsts = FILE_EXT2_NoTail; 3014 flag = "notail"; 3015 } 3016 else if (strcmp(name, "DirSync") == 0) { 3017 xar->xmlsts = FILE_EXT2_DirSync; 3018 flag = "dirsync"; 3019 } 3020 else if (strcmp(name, "TopDir") == 0) { 3021 xar->xmlsts = FILE_EXT2_TopDir; 3022 flag = "topdir"; 3023 } 3024 else if (strcmp(name, "Reserved") == 0) { 3025 xar->xmlsts = FILE_EXT2_Reserved; 3026 flag = "reserved"; 3027 } 3028 3029 if (flag == NULL) 3030 return (0); 3031 if (archive_strlen(&(xar->file->fflags_text)) > 0) 3032 archive_strappend_char(&(xar->file->fflags_text), ','); 3033 archive_strcat(&(xar->file->fflags_text), flag); 3034 return (1); 3035 } 3036 3037 #ifdef HAVE_LIBXML_XMLREADER_H 3038 3039 static int 3040 xml2_xmlattr_setup(struct archive_read *a, 3041 struct xmlattr_list *list, xmlTextReaderPtr reader) 3042 { 3043 struct xmlattr *attr; 3044 int r; 3045 3046 list->first = NULL; 3047 list->last = &(list->first); 3048 r = xmlTextReaderMoveToFirstAttribute(reader); 3049 while (r == 1) { 3050 attr = malloc(sizeof*(attr)); 3051 if (attr == NULL) { 3052 archive_set_error(&a->archive, ENOMEM, "Out of memory"); 3053 return (ARCHIVE_FATAL); 3054 } 3055 attr->name = strdup( 3056 (const char *)xmlTextReaderConstLocalName(reader)); 3057 if (attr->name == NULL) { 3058 free(attr); 3059 archive_set_error(&a->archive, ENOMEM, "Out of memory"); 3060 return (ARCHIVE_FATAL); 3061 } 3062 attr->value = strdup( 3063 (const char *)xmlTextReaderConstValue(reader)); 3064 if (attr->value == NULL) { 3065 free(attr->name); 3066 free(attr); 3067 archive_set_error(&a->archive, ENOMEM, "Out of memory"); 3068 return (ARCHIVE_FATAL); 3069 } 3070 attr->next = NULL; 3071 *list->last = attr; 3072 list->last = &(attr->next); 3073 r = xmlTextReaderMoveToNextAttribute(reader); 3074 } 3075 return (r); 3076 } 3077 3078 static int 3079 xml2_read_cb(void *context, char *buffer, int len) 3080 { 3081 struct archive_read *a; 3082 struct xar *xar; 3083 const void *d; 3084 size_t outbytes; 3085 size_t used = 0; 3086 int r; 3087 3088 a = (struct archive_read *)context; 3089 xar = (struct xar *)(a->format->data); 3090 3091 if (xar->toc_remaining <= 0) 3092 return (0); 3093 d = buffer; 3094 outbytes = len; 3095 r = rd_contents(a, &d, &outbytes, &used, xar->toc_remaining); 3096 if (r != ARCHIVE_OK) 3097 return (r); 3098 __archive_read_consume(a, used); 3099 xar->toc_remaining -= used; 3100 xar->offset += used; 3101 xar->toc_total += outbytes; 3102 PRINT_TOC(buffer, len); 3103 3104 return ((int)outbytes); 3105 } 3106 3107 static int 3108 xml2_close_cb(void *context) 3109 { 3110 3111 (void)context; /* UNUSED */ 3112 return (0); 3113 } 3114 3115 static void 3116 xml2_error_hdr(void *arg, const char *msg, xmlParserSeverities severity, 3117 xmlTextReaderLocatorPtr locator) 3118 { 3119 struct archive_read *a; 3120 3121 (void)locator; /* UNUSED */ 3122 a = (struct archive_read *)arg; 3123 switch (severity) { 3124 case XML_PARSER_SEVERITY_VALIDITY_WARNING: 3125 case XML_PARSER_SEVERITY_WARNING: 3126 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 3127 "XML Parsing error: %s", msg); 3128 break; 3129 case XML_PARSER_SEVERITY_VALIDITY_ERROR: 3130 case XML_PARSER_SEVERITY_ERROR: 3131 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 3132 "XML Parsing error: %s", msg); 3133 break; 3134 } 3135 } 3136 3137 static int 3138 xml2_read_toc(struct archive_read *a) 3139 { 3140 xmlTextReaderPtr reader; 3141 struct xmlattr_list list; 3142 int r; 3143 3144 reader = xmlReaderForIO(xml2_read_cb, xml2_close_cb, a, NULL, NULL, 0); 3145 if (reader == NULL) { 3146 archive_set_error(&a->archive, ENOMEM, 3147 "Couldn't allocate memory for xml parser"); 3148 return (ARCHIVE_FATAL); 3149 } 3150 xmlTextReaderSetErrorHandler(reader, xml2_error_hdr, a); 3151 3152 while ((r = xmlTextReaderRead(reader)) == 1) { 3153 const char *name, *value; 3154 int type, empty; 3155 3156 type = xmlTextReaderNodeType(reader); 3157 name = (const char *)xmlTextReaderConstLocalName(reader); 3158 switch (type) { 3159 case XML_READER_TYPE_ELEMENT: 3160 empty = xmlTextReaderIsEmptyElement(reader); 3161 r = xml2_xmlattr_setup(a, &list, reader); 3162 if (r == ARCHIVE_OK) 3163 r = xml_start(a, name, &list); 3164 xmlattr_cleanup(&list); 3165 if (r != ARCHIVE_OK) 3166 return (r); 3167 if (empty) 3168 xml_end(a, name); 3169 break; 3170 case XML_READER_TYPE_END_ELEMENT: 3171 xml_end(a, name); 3172 break; 3173 case XML_READER_TYPE_TEXT: 3174 value = (const char *)xmlTextReaderConstValue(reader); 3175 xml_data(a, value, strlen(value)); 3176 break; 3177 case XML_READER_TYPE_SIGNIFICANT_WHITESPACE: 3178 default: 3179 break; 3180 } 3181 if (r < 0) 3182 break; 3183 } 3184 xmlFreeTextReader(reader); 3185 xmlCleanupParser(); 3186 3187 return ((r == 0)?ARCHIVE_OK:ARCHIVE_FATAL); 3188 } 3189 3190 #elif defined(HAVE_BSDXML_H) || defined(HAVE_EXPAT_H) 3191 3192 static int 3193 expat_xmlattr_setup(struct archive_read *a, 3194 struct xmlattr_list *list, const XML_Char **atts) 3195 { 3196 struct xmlattr *attr; 3197 char *name, *value; 3198 3199 list->first = NULL; 3200 list->last = &(list->first); 3201 if (atts == NULL) 3202 return (ARCHIVE_OK); 3203 while (atts[0] != NULL && atts[1] != NULL) { 3204 attr = malloc(sizeof*(attr)); 3205 name = strdup(atts[0]); 3206 value = strdup(atts[1]); 3207 if (attr == NULL || name == NULL || value == NULL) { 3208 archive_set_error(&a->archive, ENOMEM, "Out of memory"); 3209 free(attr); 3210 free(name); 3211 free(value); 3212 return (ARCHIVE_FATAL); 3213 } 3214 attr->name = name; 3215 attr->value = value; 3216 attr->next = NULL; 3217 *list->last = attr; 3218 list->last = &(attr->next); 3219 atts += 2; 3220 } 3221 return (ARCHIVE_OK); 3222 } 3223 3224 static void 3225 expat_start_cb(void *userData, const XML_Char *name, const XML_Char **atts) 3226 { 3227 struct expat_userData *ud = (struct expat_userData *)userData; 3228 struct archive_read *a = ud->archive; 3229 struct xmlattr_list list; 3230 int r; 3231 3232 r = expat_xmlattr_setup(a, &list, atts); 3233 if (r == ARCHIVE_OK) 3234 r = xml_start(a, (const char *)name, &list); 3235 xmlattr_cleanup(&list); 3236 ud->state = r; 3237 } 3238 3239 static void 3240 expat_end_cb(void *userData, const XML_Char *name) 3241 { 3242 struct expat_userData *ud = (struct expat_userData *)userData; 3243 3244 xml_end(ud->archive, (const char *)name); 3245 } 3246 3247 static void 3248 expat_data_cb(void *userData, const XML_Char *s, int len) 3249 { 3250 struct expat_userData *ud = (struct expat_userData *)userData; 3251 3252 xml_data(ud->archive, s, len); 3253 } 3254 3255 static int 3256 expat_read_toc(struct archive_read *a) 3257 { 3258 struct xar *xar; 3259 XML_Parser parser; 3260 struct expat_userData ud; 3261 3262 ud.state = ARCHIVE_OK; 3263 ud.archive = a; 3264 3265 xar = (struct xar *)(a->format->data); 3266 3267 /* Initialize XML Parser library. */ 3268 parser = XML_ParserCreate(NULL); 3269 if (parser == NULL) { 3270 archive_set_error(&a->archive, ENOMEM, 3271 "Couldn't allocate memory for xml parser"); 3272 return (ARCHIVE_FATAL); 3273 } 3274 XML_SetUserData(parser, &ud); 3275 XML_SetElementHandler(parser, expat_start_cb, expat_end_cb); 3276 XML_SetCharacterDataHandler(parser, expat_data_cb); 3277 xar->xmlsts = INIT; 3278 3279 while (xar->toc_remaining && ud.state == ARCHIVE_OK) { 3280 enum XML_Status xr; 3281 const void *d; 3282 size_t outbytes; 3283 size_t used; 3284 int r; 3285 3286 d = NULL; 3287 r = rd_contents(a, &d, &outbytes, &used, xar->toc_remaining); 3288 if (r != ARCHIVE_OK) 3289 return (r); 3290 xar->toc_remaining -= used; 3291 xar->offset += used; 3292 xar->toc_total += outbytes; 3293 PRINT_TOC(d, outbytes); 3294 3295 xr = XML_Parse(parser, d, outbytes, xar->toc_remaining == 0); 3296 __archive_read_consume(a, used); 3297 if (xr == XML_STATUS_ERROR) { 3298 XML_ParserFree(parser); 3299 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 3300 "XML Parsing failed"); 3301 return (ARCHIVE_FATAL); 3302 } 3303 } 3304 XML_ParserFree(parser); 3305 return (ud.state); 3306 } 3307 #endif /* defined(HAVE_BSDXML_H) || defined(HAVE_EXPAT_H) */ 3308 3309 #endif /* Support xar format */ 3310