archive_read_disk_entry_from_file.c revision 306941
1/*- 2 * Copyright (c) 2003-2009 Tim Kientzle 3 * Copyright (c) 2010-2012 Michihiro NAKAJIMA 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include "archive_platform.h" 28__FBSDID("$FreeBSD: releng/10.3/contrib/libarchive/libarchive/archive_read_disk_entry_from_file.c 306941 2016-10-10 07:18:54Z delphij $"); 29 30/* This is the tree-walking code for POSIX systems. */ 31#if !defined(_WIN32) || defined(__CYGWIN__) 32 33#ifdef HAVE_SYS_TYPES_H 34/* Mac OSX requires sys/types.h before sys/acl.h. */ 35#include <sys/types.h> 36#endif 37#ifdef HAVE_SYS_ACL_H 38#include <sys/acl.h> 39#endif 40#ifdef HAVE_SYS_EXTATTR_H 41#include <sys/extattr.h> 42#endif 43#ifdef HAVE_SYS_IOCTL_H 44#include <sys/ioctl.h> 45#endif 46#ifdef HAVE_SYS_PARAM_H 47#include <sys/param.h> 48#endif 49#ifdef HAVE_SYS_STAT_H 50#include <sys/stat.h> 51#endif 52#if defined(HAVE_SYS_XATTR_H) 53#include <sys/xattr.h> 54#elif defined(HAVE_ATTR_XATTR_H) 55#include <attr/xattr.h> 56#endif 57#ifdef HAVE_SYS_EA_H 58#include <sys/ea.h> 59#endif 60#ifdef HAVE_ACL_LIBACL_H 61#include <acl/libacl.h> 62#endif 63#ifdef HAVE_COPYFILE_H 64#include <copyfile.h> 65#endif 66#ifdef HAVE_ERRNO_H 67#include <errno.h> 68#endif 69#ifdef HAVE_FCNTL_H 70#include <fcntl.h> 71#endif 72#ifdef HAVE_LIMITS_H 73#include <limits.h> 74#endif 75#ifdef HAVE_LINUX_TYPES_H 76#include <linux/types.h> 77#endif 78#ifdef HAVE_LINUX_FIEMAP_H 79#include <linux/fiemap.h> 80#endif 81#ifdef HAVE_LINUX_FS_H 82#include <linux/fs.h> 83#endif 84/* 85 * Some Linux distributions have both linux/ext2_fs.h and ext2fs/ext2_fs.h. 86 * As the include guards don't agree, the order of include is important. 87 */ 88#ifdef HAVE_LINUX_EXT2_FS_H 89#include <linux/ext2_fs.h> /* for Linux file flags */ 90#endif 91#if defined(HAVE_EXT2FS_EXT2_FS_H) && !defined(__CYGWIN__) 92#include <ext2fs/ext2_fs.h> /* Linux file flags, broken on Cygwin */ 93#endif 94#ifdef HAVE_PATHS_H 95#include <paths.h> 96#endif 97#ifdef HAVE_UNISTD_H 98#include <unistd.h> 99#endif 100 101#include "archive.h" 102#include "archive_entry.h" 103#include "archive_private.h" 104#include "archive_read_disk_private.h" 105 106#ifndef O_CLOEXEC 107#define O_CLOEXEC 0 108#endif 109 110/* 111 * Linux and FreeBSD plug this obvious hole in POSIX.1e in 112 * different ways. 113 */ 114#if HAVE_ACL_GET_PERM 115#define ACL_GET_PERM acl_get_perm 116#elif HAVE_ACL_GET_PERM_NP 117#define ACL_GET_PERM acl_get_perm_np 118#endif 119 120static int setup_acls(struct archive_read_disk *, 121 struct archive_entry *, int *fd); 122static int setup_mac_metadata(struct archive_read_disk *, 123 struct archive_entry *, int *fd); 124static int setup_xattrs(struct archive_read_disk *, 125 struct archive_entry *, int *fd); 126static int setup_sparse(struct archive_read_disk *, 127 struct archive_entry *, int *fd); 128 129int 130archive_read_disk_entry_from_file(struct archive *_a, 131 struct archive_entry *entry, 132 int fd, 133 const struct stat *st) 134{ 135 struct archive_read_disk *a = (struct archive_read_disk *)_a; 136 const char *path, *name; 137 struct stat s; 138 int initial_fd = fd; 139 int r, r1; 140 141 archive_clear_error(_a); 142 path = archive_entry_sourcepath(entry); 143 if (path == NULL) 144 path = archive_entry_pathname(entry); 145 146 if (a->tree == NULL) { 147 if (st == NULL) { 148#if HAVE_FSTAT 149 if (fd >= 0) { 150 if (fstat(fd, &s) != 0) { 151 archive_set_error(&a->archive, errno, 152 "Can't fstat"); 153 return (ARCHIVE_FAILED); 154 } 155 } else 156#endif 157#if HAVE_LSTAT 158 if (!a->follow_symlinks) { 159 if (lstat(path, &s) != 0) { 160 archive_set_error(&a->archive, errno, 161 "Can't lstat %s", path); 162 return (ARCHIVE_FAILED); 163 } 164 } else 165#endif 166 if (stat(path, &s) != 0) { 167 archive_set_error(&a->archive, errno, 168 "Can't stat %s", path); 169 return (ARCHIVE_FAILED); 170 } 171 st = &s; 172 } 173 archive_entry_copy_stat(entry, st); 174 } 175 176 /* Lookup uname/gname */ 177 name = archive_read_disk_uname(_a, archive_entry_uid(entry)); 178 if (name != NULL) 179 archive_entry_copy_uname(entry, name); 180 name = archive_read_disk_gname(_a, archive_entry_gid(entry)); 181 if (name != NULL) 182 archive_entry_copy_gname(entry, name); 183 184#ifdef HAVE_STRUCT_STAT_ST_FLAGS 185 /* On FreeBSD, we get flags for free with the stat. */ 186 /* TODO: Does this belong in copy_stat()? */ 187 if (st->st_flags != 0) 188 archive_entry_set_fflags(entry, st->st_flags, 0); 189#endif 190 191#if defined(EXT2_IOC_GETFLAGS) && defined(HAVE_WORKING_EXT2_IOC_GETFLAGS) 192 /* Linux requires an extra ioctl to pull the flags. Although 193 * this is an extra step, it has a nice side-effect: We get an 194 * open file descriptor which we can use in the subsequent lookups. */ 195 if ((S_ISREG(st->st_mode) || S_ISDIR(st->st_mode))) { 196 if (fd < 0) { 197 if (a->tree != NULL) 198 fd = a->open_on_current_dir(a->tree, path, 199 O_RDONLY | O_NONBLOCK | O_CLOEXEC); 200 else 201 fd = open(path, O_RDONLY | O_NONBLOCK | 202 O_CLOEXEC); 203 __archive_ensure_cloexec_flag(fd); 204 } 205 if (fd >= 0) { 206 int stflags; 207 r = ioctl(fd, EXT2_IOC_GETFLAGS, &stflags); 208 if (r == 0 && stflags != 0) 209 archive_entry_set_fflags(entry, stflags, 0); 210 } 211 } 212#endif 213 214#if defined(HAVE_READLINK) || defined(HAVE_READLINKAT) 215 if (S_ISLNK(st->st_mode)) { 216 size_t linkbuffer_len = st->st_size + 1; 217 char *linkbuffer; 218 int lnklen; 219 220 linkbuffer = malloc(linkbuffer_len); 221 if (linkbuffer == NULL) { 222 archive_set_error(&a->archive, ENOMEM, 223 "Couldn't read link data"); 224 return (ARCHIVE_FAILED); 225 } 226 if (a->tree != NULL) { 227#ifdef HAVE_READLINKAT 228 lnklen = readlinkat(a->tree_current_dir_fd(a->tree), 229 path, linkbuffer, linkbuffer_len); 230#else 231 if (a->tree_enter_working_dir(a->tree) != 0) { 232 archive_set_error(&a->archive, errno, 233 "Couldn't read link data"); 234 free(linkbuffer); 235 return (ARCHIVE_FAILED); 236 } 237 lnklen = readlink(path, linkbuffer, linkbuffer_len); 238#endif /* HAVE_READLINKAT */ 239 } else 240 lnklen = readlink(path, linkbuffer, linkbuffer_len); 241 if (lnklen < 0) { 242 archive_set_error(&a->archive, errno, 243 "Couldn't read link data"); 244 free(linkbuffer); 245 return (ARCHIVE_FAILED); 246 } 247 linkbuffer[lnklen] = 0; 248 archive_entry_set_symlink(entry, linkbuffer); 249 free(linkbuffer); 250 } 251#endif /* HAVE_READLINK || HAVE_READLINKAT */ 252 253 r = setup_acls(a, entry, &fd); 254 r1 = setup_xattrs(a, entry, &fd); 255 if (r1 < r) 256 r = r1; 257 if (a->enable_copyfile) { 258 r1 = setup_mac_metadata(a, entry, &fd); 259 if (r1 < r) 260 r = r1; 261 } 262 r1 = setup_sparse(a, entry, &fd); 263 if (r1 < r) 264 r = r1; 265 266 /* If we opened the file earlier in this function, close it. */ 267 if (initial_fd != fd) 268 close(fd); 269 return (r); 270} 271 272#if defined(__APPLE__) && defined(HAVE_COPYFILE_H) 273/* 274 * The Mac OS "copyfile()" API copies the extended metadata for a 275 * file into a separate file in AppleDouble format (see RFC 1740). 276 * 277 * Mac OS tar and cpio implementations store this extended 278 * metadata as a separate entry just before the regular entry 279 * with a "._" prefix added to the filename. 280 * 281 * Note that this is currently done unconditionally; the tar program has 282 * an option to discard this information before the archive is written. 283 * 284 * TODO: If there's a failure, report it and return ARCHIVE_WARN. 285 */ 286static int 287setup_mac_metadata(struct archive_read_disk *a, 288 struct archive_entry *entry, int *fd) 289{ 290 int tempfd = -1; 291 int copyfile_flags = COPYFILE_NOFOLLOW | COPYFILE_ACL | COPYFILE_XATTR; 292 struct stat copyfile_stat; 293 int ret = ARCHIVE_OK; 294 void *buff = NULL; 295 int have_attrs; 296 const char *name, *tempdir; 297 struct archive_string tempfile; 298 299 (void)fd; /* UNUSED */ 300 name = archive_entry_sourcepath(entry); 301 if (name == NULL) 302 name = archive_entry_pathname(entry); 303 if (name == NULL) { 304 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 305 "Can't open file to read extended attributes: No name"); 306 return (ARCHIVE_WARN); 307 } 308 309 if (a->tree != NULL) { 310 if (a->tree_enter_working_dir(a->tree) != 0) { 311 archive_set_error(&a->archive, errno, 312 "Couldn't change dir"); 313 return (ARCHIVE_FAILED); 314 } 315 } 316 317 /* Short-circuit if there's nothing to do. */ 318 have_attrs = copyfile(name, NULL, 0, copyfile_flags | COPYFILE_CHECK); 319 if (have_attrs == -1) { 320 archive_set_error(&a->archive, errno, 321 "Could not check extended attributes"); 322 return (ARCHIVE_WARN); 323 } 324 if (have_attrs == 0) 325 return (ARCHIVE_OK); 326 327 tempdir = NULL; 328 if (issetugid() == 0) 329 tempdir = getenv("TMPDIR"); 330 if (tempdir == NULL) 331 tempdir = _PATH_TMP; 332 archive_string_init(&tempfile); 333 archive_strcpy(&tempfile, tempdir); 334 archive_strcat(&tempfile, "tar.md.XXXXXX"); 335 tempfd = mkstemp(tempfile.s); 336 if (tempfd < 0) { 337 archive_set_error(&a->archive, errno, 338 "Could not open extended attribute file"); 339 ret = ARCHIVE_WARN; 340 goto cleanup; 341 } 342 __archive_ensure_cloexec_flag(tempfd); 343 344 /* XXX I wish copyfile() could pack directly to a memory 345 * buffer; that would avoid the temp file here. For that 346 * matter, it would be nice if fcopyfile() actually worked, 347 * that would reduce the many open/close races here. */ 348 if (copyfile(name, tempfile.s, 0, copyfile_flags | COPYFILE_PACK)) { 349 archive_set_error(&a->archive, errno, 350 "Could not pack extended attributes"); 351 ret = ARCHIVE_WARN; 352 goto cleanup; 353 } 354 if (fstat(tempfd, ©file_stat)) { 355 archive_set_error(&a->archive, errno, 356 "Could not check size of extended attributes"); 357 ret = ARCHIVE_WARN; 358 goto cleanup; 359 } 360 buff = malloc(copyfile_stat.st_size); 361 if (buff == NULL) { 362 archive_set_error(&a->archive, errno, 363 "Could not allocate memory for extended attributes"); 364 ret = ARCHIVE_WARN; 365 goto cleanup; 366 } 367 if (copyfile_stat.st_size != read(tempfd, buff, copyfile_stat.st_size)) { 368 archive_set_error(&a->archive, errno, 369 "Could not read extended attributes into memory"); 370 ret = ARCHIVE_WARN; 371 goto cleanup; 372 } 373 archive_entry_copy_mac_metadata(entry, buff, copyfile_stat.st_size); 374 375cleanup: 376 if (tempfd >= 0) { 377 close(tempfd); 378 unlink(tempfile.s); 379 } 380 archive_string_free(&tempfile); 381 free(buff); 382 return (ret); 383} 384 385#else 386 387/* 388 * Stub implementation for non-Mac systems. 389 */ 390static int 391setup_mac_metadata(struct archive_read_disk *a, 392 struct archive_entry *entry, int *fd) 393{ 394 (void)a; /* UNUSED */ 395 (void)entry; /* UNUSED */ 396 (void)fd; /* UNUSED */ 397 return (ARCHIVE_OK); 398} 399#endif 400 401 402#if defined(HAVE_POSIX_ACL) && defined(ACL_TYPE_NFS4) 403static int translate_acl(struct archive_read_disk *a, 404 struct archive_entry *entry, acl_t acl, int archive_entry_acl_type); 405 406static int 407setup_acls(struct archive_read_disk *a, 408 struct archive_entry *entry, int *fd) 409{ 410 const char *accpath; 411 acl_t acl; 412 int r; 413 414 accpath = archive_entry_sourcepath(entry); 415 if (accpath == NULL) 416 accpath = archive_entry_pathname(entry); 417 418 archive_entry_acl_clear(entry); 419 420 /* Try NFS4 ACL first. */ 421 if (*fd >= 0) 422 acl = acl_get_fd(*fd); 423#if HAVE_ACL_GET_LINK_NP 424 else if (!a->follow_symlinks) 425 acl = acl_get_link_np(accpath, ACL_TYPE_NFS4); 426#else 427 else if ((!a->follow_symlinks) 428 && (archive_entry_filetype(entry) == AE_IFLNK)) 429 /* We can't get the ACL of a symlink, so we assume it can't 430 have one. */ 431 acl = NULL; 432#endif 433 else 434 acl = acl_get_file(accpath, ACL_TYPE_NFS4); 435#if HAVE_ACL_IS_TRIVIAL_NP 436 /* Ignore "trivial" ACLs that just mirror the file mode. */ 437 acl_is_trivial_np(acl, &r); 438 if (r) { 439 acl_free(acl); 440 acl = NULL; 441 } 442#endif 443 if (acl != NULL) { 444 r = translate_acl(a, entry, acl, ARCHIVE_ENTRY_ACL_TYPE_NFS4); 445 acl_free(acl); 446 if (r != ARCHIVE_OK) { 447 archive_set_error(&a->archive, errno, 448 "Couldn't translate NFSv4 ACLs: %s", accpath); 449 } 450 return (r); 451 } 452 453 /* Retrieve access ACL from file. */ 454 if (*fd >= 0) 455 acl = acl_get_fd(*fd); 456#if HAVE_ACL_GET_LINK_NP 457 else if (!a->follow_symlinks) 458 acl = acl_get_link_np(accpath, ACL_TYPE_ACCESS); 459#else 460 else if ((!a->follow_symlinks) 461 && (archive_entry_filetype(entry) == AE_IFLNK)) 462 /* We can't get the ACL of a symlink, so we assume it can't 463 have one. */ 464 acl = NULL; 465#endif 466 else 467 acl = acl_get_file(accpath, ACL_TYPE_ACCESS); 468 if (acl != NULL) { 469 r = translate_acl(a, entry, acl, 470 ARCHIVE_ENTRY_ACL_TYPE_ACCESS); 471 acl_free(acl); 472 if (r != ARCHIVE_OK) { 473 archive_set_error(&a->archive, errno, 474 "Couldn't translate access ACLs: %s", accpath); 475 return (r); 476 } 477 } 478 479 /* Only directories can have default ACLs. */ 480 if (S_ISDIR(archive_entry_mode(entry))) { 481 acl = acl_get_file(accpath, ACL_TYPE_DEFAULT); 482 if (acl != NULL) { 483 r = translate_acl(a, entry, acl, 484 ARCHIVE_ENTRY_ACL_TYPE_DEFAULT); 485 acl_free(acl); 486 if (r != ARCHIVE_OK) { 487 archive_set_error(&a->archive, errno, 488 "Couldn't translate default ACLs: %s", 489 accpath); 490 return (r); 491 } 492 } 493 } 494 return (ARCHIVE_OK); 495} 496 497/* 498 * Translate system ACL into libarchive internal structure. 499 */ 500 501static struct { 502 int archive_perm; 503 int platform_perm; 504} acl_perm_map[] = { 505 {ARCHIVE_ENTRY_ACL_EXECUTE, ACL_EXECUTE}, 506 {ARCHIVE_ENTRY_ACL_WRITE, ACL_WRITE}, 507 {ARCHIVE_ENTRY_ACL_READ, ACL_READ}, 508 {ARCHIVE_ENTRY_ACL_READ_DATA, ACL_READ_DATA}, 509 {ARCHIVE_ENTRY_ACL_LIST_DIRECTORY, ACL_LIST_DIRECTORY}, 510 {ARCHIVE_ENTRY_ACL_WRITE_DATA, ACL_WRITE_DATA}, 511 {ARCHIVE_ENTRY_ACL_ADD_FILE, ACL_ADD_FILE}, 512 {ARCHIVE_ENTRY_ACL_APPEND_DATA, ACL_APPEND_DATA}, 513 {ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY, ACL_ADD_SUBDIRECTORY}, 514 {ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS, ACL_READ_NAMED_ATTRS}, 515 {ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS, ACL_WRITE_NAMED_ATTRS}, 516 {ARCHIVE_ENTRY_ACL_DELETE_CHILD, ACL_DELETE_CHILD}, 517 {ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES, ACL_READ_ATTRIBUTES}, 518 {ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES, ACL_WRITE_ATTRIBUTES}, 519 {ARCHIVE_ENTRY_ACL_DELETE, ACL_DELETE}, 520 {ARCHIVE_ENTRY_ACL_READ_ACL, ACL_READ_ACL}, 521 {ARCHIVE_ENTRY_ACL_WRITE_ACL, ACL_WRITE_ACL}, 522 {ARCHIVE_ENTRY_ACL_WRITE_OWNER, ACL_WRITE_OWNER}, 523 {ARCHIVE_ENTRY_ACL_SYNCHRONIZE, ACL_SYNCHRONIZE} 524}; 525 526static struct { 527 int archive_inherit; 528 int platform_inherit; 529} acl_inherit_map[] = { 530 {ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT, ACL_ENTRY_FILE_INHERIT}, 531 {ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT, ACL_ENTRY_DIRECTORY_INHERIT}, 532 {ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT, ACL_ENTRY_NO_PROPAGATE_INHERIT}, 533 {ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY, ACL_ENTRY_INHERIT_ONLY} 534}; 535 536static int 537translate_acl(struct archive_read_disk *a, 538 struct archive_entry *entry, acl_t acl, int default_entry_acl_type) 539{ 540 acl_tag_t acl_tag; 541 acl_entry_type_t acl_type; 542 acl_flagset_t acl_flagset; 543 acl_entry_t acl_entry; 544 acl_permset_t acl_permset; 545 int brand, i, r, entry_acl_type; 546 int s, ae_id, ae_tag, ae_perm; 547 const char *ae_name; 548 549 // FreeBSD "brands" ACLs as POSIX.1e or NFSv4 550 // Make sure the "brand" on this ACL is consistent 551 // with the default_entry_acl_type bits provided. 552 if (acl_get_brand_np(acl, &brand) != 0) { 553 archive_set_error(&a->archive, errno, 554 "Failed to read ACL brand"); 555 return (ARCHIVE_WARN); 556 } 557 switch (brand) { 558 case ACL_BRAND_POSIX: 559 switch (default_entry_acl_type) { 560 case ARCHIVE_ENTRY_ACL_TYPE_ACCESS: 561 case ARCHIVE_ENTRY_ACL_TYPE_DEFAULT: 562 break; 563 default: 564 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 565 "Invalid ACL entry type for POSIX.1e ACL"); 566 return (ARCHIVE_WARN); 567 } 568 break; 569 case ACL_BRAND_NFS4: 570 if (default_entry_acl_type & ~ARCHIVE_ENTRY_ACL_TYPE_NFS4) { 571 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 572 "Invalid ACL entry type for NFSv4 ACL"); 573 return (ARCHIVE_WARN); 574 } 575 break; 576 default: 577 archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, 578 "Unknown ACL brand"); 579 return (ARCHIVE_WARN); 580 break; 581 } 582 583 584 s = acl_get_entry(acl, ACL_FIRST_ENTRY, &acl_entry); 585 if (s == -1) { 586 archive_set_error(&a->archive, errno, 587 "Failed to get first ACL entry"); 588 return (ARCHIVE_WARN); 589 } 590 while (s == 1) { 591 ae_id = -1; 592 ae_name = NULL; 593 ae_perm = 0; 594 595 if (acl_get_tag_type(acl_entry, &acl_tag) != 0) { 596 archive_set_error(&a->archive, errno, 597 "Failed to get ACL tag type"); 598 return (ARCHIVE_WARN); 599 } 600 switch (acl_tag) { 601 case ACL_USER: 602 ae_id = (int)*(uid_t *)acl_get_qualifier(acl_entry); 603 ae_name = archive_read_disk_uname(&a->archive, ae_id); 604 ae_tag = ARCHIVE_ENTRY_ACL_USER; 605 break; 606 case ACL_GROUP: 607 ae_id = (int)*(gid_t *)acl_get_qualifier(acl_entry); 608 ae_name = archive_read_disk_gname(&a->archive, ae_id); 609 ae_tag = ARCHIVE_ENTRY_ACL_GROUP; 610 break; 611 case ACL_MASK: 612 ae_tag = ARCHIVE_ENTRY_ACL_MASK; 613 break; 614 case ACL_USER_OBJ: 615 ae_tag = ARCHIVE_ENTRY_ACL_USER_OBJ; 616 break; 617 case ACL_GROUP_OBJ: 618 ae_tag = ARCHIVE_ENTRY_ACL_GROUP_OBJ; 619 break; 620 case ACL_OTHER: 621 ae_tag = ARCHIVE_ENTRY_ACL_OTHER; 622 break; 623 case ACL_EVERYONE: 624 ae_tag = ARCHIVE_ENTRY_ACL_EVERYONE; 625 break; 626 default: 627 /* Skip types that libarchive can't support. */ 628 s = acl_get_entry(acl, ACL_NEXT_ENTRY, &acl_entry); 629 continue; 630 } 631 632 // XXX acl_type maps to allow/deny/audit/YYYY bits 633 entry_acl_type = default_entry_acl_type; 634 if (default_entry_acl_type & ARCHIVE_ENTRY_ACL_TYPE_NFS4) { 635 /* 636 * acl_get_entry_type_np() falis with non-NFSv4 ACLs 637 */ 638 if (acl_get_entry_type_np(acl_entry, &acl_type) != 0) { 639 archive_set_error(&a->archive, errno, "Failed " 640 "to get ACL type from a NFSv4 ACL entry"); 641 return (ARCHIVE_WARN); 642 } 643 switch (acl_type) { 644 case ACL_ENTRY_TYPE_ALLOW: 645 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALLOW; 646 break; 647 case ACL_ENTRY_TYPE_DENY: 648 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_DENY; 649 break; 650 case ACL_ENTRY_TYPE_AUDIT: 651 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_AUDIT; 652 break; 653 case ACL_ENTRY_TYPE_ALARM: 654 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALARM; 655 break; 656 default: 657 archive_set_error(&a->archive, errno, 658 "Invalid NFSv4 ACL entry type"); 659 return (ARCHIVE_WARN); 660 } 661 662 /* 663 * Libarchive stores "flag" (NFSv4 inheritance bits) 664 * in the ae_perm bitmap. 665 * 666 * acl_get_flagset_np() fails with non-NFSv4 ACLs 667 */ 668 if (acl_get_flagset_np(acl_entry, &acl_flagset) != 0) { 669 archive_set_error(&a->archive, errno, 670 "Failed to get flagset from a NFSv4 ACL entry"); 671 return (ARCHIVE_WARN); 672 } 673 for (i = 0; i < (int)(sizeof(acl_inherit_map) / sizeof(acl_inherit_map[0])); ++i) { 674 r = acl_get_flag_np(acl_flagset, 675 acl_inherit_map[i].platform_inherit); 676 if (r == -1) { 677 archive_set_error(&a->archive, errno, 678 "Failed to check flag in a NFSv4 " 679 "ACL flagset"); 680 return (ARCHIVE_WARN); 681 } else if (r) 682 ae_perm |= acl_inherit_map[i].archive_inherit; 683 } 684 } 685 686 if (acl_get_permset(acl_entry, &acl_permset) != 0) { 687 archive_set_error(&a->archive, errno, 688 "Failed to get ACL permission set"); 689 return (ARCHIVE_WARN); 690 } 691 for (i = 0; i < (int)(sizeof(acl_perm_map) / sizeof(acl_perm_map[0])); ++i) { 692 /* 693 * acl_get_perm() is spelled differently on different 694 * platforms; see above. 695 */ 696 r = ACL_GET_PERM(acl_permset, acl_perm_map[i].platform_perm); 697 if (r == -1) { 698 archive_set_error(&a->archive, errno, 699 "Failed to check permission in an ACL permission set"); 700 return (ARCHIVE_WARN); 701 } else if (r) 702 ae_perm |= acl_perm_map[i].archive_perm; 703 } 704 705 archive_entry_acl_add_entry(entry, entry_acl_type, 706 ae_perm, ae_tag, 707 ae_id, ae_name); 708 709 s = acl_get_entry(acl, ACL_NEXT_ENTRY, &acl_entry); 710 if (s == -1) { 711 archive_set_error(&a->archive, errno, 712 "Failed to get next ACL entry"); 713 return (ARCHIVE_WARN); 714 } 715 } 716 return (ARCHIVE_OK); 717} 718#else 719static int 720setup_acls(struct archive_read_disk *a, 721 struct archive_entry *entry, int *fd) 722{ 723 (void)a; /* UNUSED */ 724 (void)entry; /* UNUSED */ 725 (void)fd; /* UNUSED */ 726 return (ARCHIVE_OK); 727} 728#endif 729 730#if (HAVE_FGETXATTR && HAVE_FLISTXATTR && HAVE_LISTXATTR && \ 731 HAVE_LLISTXATTR && HAVE_GETXATTR && HAVE_LGETXATTR) || \ 732 (HAVE_FGETEA && HAVE_FLISTEA && HAVE_LISTEA) 733 734/* 735 * Linux and AIX extended attribute support. 736 * 737 * TODO: By using a stack-allocated buffer for the first 738 * call to getxattr(), we might be able to avoid the second 739 * call entirely. We only need the second call if the 740 * stack-allocated buffer is too small. But a modest buffer 741 * of 1024 bytes or so will often be big enough. Same applies 742 * to listxattr(). 743 */ 744 745 746static int 747setup_xattr(struct archive_read_disk *a, 748 struct archive_entry *entry, const char *name, int fd) 749{ 750 ssize_t size; 751 void *value = NULL; 752 const char *accpath; 753 754 accpath = archive_entry_sourcepath(entry); 755 if (accpath == NULL) 756 accpath = archive_entry_pathname(entry); 757 758#if HAVE_FGETXATTR 759 if (fd >= 0) 760 size = fgetxattr(fd, name, NULL, 0); 761 else if (!a->follow_symlinks) 762 size = lgetxattr(accpath, name, NULL, 0); 763 else 764 size = getxattr(accpath, name, NULL, 0); 765#elif HAVE_FGETEA 766 if (fd >= 0) 767 size = fgetea(fd, name, NULL, 0); 768 else if (!a->follow_symlinks) 769 size = lgetea(accpath, name, NULL, 0); 770 else 771 size = getea(accpath, name, NULL, 0); 772#endif 773 774 if (size == -1) { 775 archive_set_error(&a->archive, errno, 776 "Couldn't query extended attribute"); 777 return (ARCHIVE_WARN); 778 } 779 780 if (size > 0 && (value = malloc(size)) == NULL) { 781 archive_set_error(&a->archive, errno, "Out of memory"); 782 return (ARCHIVE_FATAL); 783 } 784 785#if HAVE_FGETXATTR 786 if (fd >= 0) 787 size = fgetxattr(fd, name, value, size); 788 else if (!a->follow_symlinks) 789 size = lgetxattr(accpath, name, value, size); 790 else 791 size = getxattr(accpath, name, value, size); 792#elif HAVE_FGETEA 793 if (fd >= 0) 794 size = fgetea(fd, name, value, size); 795 else if (!a->follow_symlinks) 796 size = lgetea(accpath, name, value, size); 797 else 798 size = getea(accpath, name, value, size); 799#endif 800 801 if (size == -1) { 802 archive_set_error(&a->archive, errno, 803 "Couldn't read extended attribute"); 804 return (ARCHIVE_WARN); 805 } 806 807 archive_entry_xattr_add_entry(entry, name, value, size); 808 809 free(value); 810 return (ARCHIVE_OK); 811} 812 813static int 814setup_xattrs(struct archive_read_disk *a, 815 struct archive_entry *entry, int *fd) 816{ 817 char *list, *p; 818 const char *path; 819 ssize_t list_size; 820 821 path = archive_entry_sourcepath(entry); 822 if (path == NULL) 823 path = archive_entry_pathname(entry); 824 825 if (*fd < 0 && a->tree != NULL) { 826 if (a->follow_symlinks || 827 archive_entry_filetype(entry) != AE_IFLNK) 828 *fd = a->open_on_current_dir(a->tree, path, 829 O_RDONLY | O_NONBLOCK); 830 if (*fd < 0) { 831 if (a->tree_enter_working_dir(a->tree) != 0) { 832 archive_set_error(&a->archive, errno, 833 "Couldn't access %s", path); 834 return (ARCHIVE_FAILED); 835 } 836 } 837 } 838 839#if HAVE_FLISTXATTR 840 if (*fd >= 0) 841 list_size = flistxattr(*fd, NULL, 0); 842 else if (!a->follow_symlinks) 843 list_size = llistxattr(path, NULL, 0); 844 else 845 list_size = listxattr(path, NULL, 0); 846#elif HAVE_FLISTEA 847 if (*fd >= 0) 848 list_size = flistea(*fd, NULL, 0); 849 else if (!a->follow_symlinks) 850 list_size = llistea(path, NULL, 0); 851 else 852 list_size = listea(path, NULL, 0); 853#endif 854 855 if (list_size == -1) { 856 if (errno == ENOTSUP || errno == ENOSYS) 857 return (ARCHIVE_OK); 858 archive_set_error(&a->archive, errno, 859 "Couldn't list extended attributes"); 860 return (ARCHIVE_WARN); 861 } 862 863 if (list_size == 0) 864 return (ARCHIVE_OK); 865 866 if ((list = malloc(list_size)) == NULL) { 867 archive_set_error(&a->archive, errno, "Out of memory"); 868 return (ARCHIVE_FATAL); 869 } 870 871#if HAVE_FLISTXATTR 872 if (*fd >= 0) 873 list_size = flistxattr(*fd, list, list_size); 874 else if (!a->follow_symlinks) 875 list_size = llistxattr(path, list, list_size); 876 else 877 list_size = listxattr(path, list, list_size); 878#elif HAVE_FLISTEA 879 if (*fd >= 0) 880 list_size = flistea(*fd, list, list_size); 881 else if (!a->follow_symlinks) 882 list_size = llistea(path, list, list_size); 883 else 884 list_size = listea(path, list, list_size); 885#endif 886 887 if (list_size == -1) { 888 archive_set_error(&a->archive, errno, 889 "Couldn't retrieve extended attributes"); 890 free(list); 891 return (ARCHIVE_WARN); 892 } 893 894 for (p = list; (p - list) < list_size; p += strlen(p) + 1) { 895 if (strncmp(p, "system.", 7) == 0 || 896 strncmp(p, "xfsroot.", 8) == 0) 897 continue; 898 setup_xattr(a, entry, p, *fd); 899 } 900 901 free(list); 902 return (ARCHIVE_OK); 903} 904 905#elif HAVE_EXTATTR_GET_FILE && HAVE_EXTATTR_LIST_FILE && \ 906 HAVE_DECL_EXTATTR_NAMESPACE_USER 907 908/* 909 * FreeBSD extattr interface. 910 */ 911 912/* TODO: Implement this. Follow the Linux model above, but 913 * with FreeBSD-specific system calls, of course. Be careful 914 * to not include the system extattrs that hold ACLs; we handle 915 * those separately. 916 */ 917static int 918setup_xattr(struct archive_read_disk *a, struct archive_entry *entry, 919 int namespace, const char *name, const char *fullname, int fd); 920 921static int 922setup_xattr(struct archive_read_disk *a, struct archive_entry *entry, 923 int namespace, const char *name, const char *fullname, int fd) 924{ 925 ssize_t size; 926 void *value = NULL; 927 const char *accpath; 928 929 accpath = archive_entry_sourcepath(entry); 930 if (accpath == NULL) 931 accpath = archive_entry_pathname(entry); 932 933 if (fd >= 0) 934 size = extattr_get_fd(fd, namespace, name, NULL, 0); 935 else if (!a->follow_symlinks) 936 size = extattr_get_link(accpath, namespace, name, NULL, 0); 937 else 938 size = extattr_get_file(accpath, namespace, name, NULL, 0); 939 940 if (size == -1) { 941 archive_set_error(&a->archive, errno, 942 "Couldn't query extended attribute"); 943 return (ARCHIVE_WARN); 944 } 945 946 if (size > 0 && (value = malloc(size)) == NULL) { 947 archive_set_error(&a->archive, errno, "Out of memory"); 948 return (ARCHIVE_FATAL); 949 } 950 951 if (fd >= 0) 952 size = extattr_get_fd(fd, namespace, name, value, size); 953 else if (!a->follow_symlinks) 954 size = extattr_get_link(accpath, namespace, name, value, size); 955 else 956 size = extattr_get_file(accpath, namespace, name, value, size); 957 958 if (size == -1) { 959 free(value); 960 archive_set_error(&a->archive, errno, 961 "Couldn't read extended attribute"); 962 return (ARCHIVE_WARN); 963 } 964 965 archive_entry_xattr_add_entry(entry, fullname, value, size); 966 967 free(value); 968 return (ARCHIVE_OK); 969} 970 971static int 972setup_xattrs(struct archive_read_disk *a, 973 struct archive_entry *entry, int *fd) 974{ 975 char buff[512]; 976 char *list, *p; 977 ssize_t list_size; 978 const char *path; 979 int namespace = EXTATTR_NAMESPACE_USER; 980 981 path = archive_entry_sourcepath(entry); 982 if (path == NULL) 983 path = archive_entry_pathname(entry); 984 985 if (*fd < 0 && a->tree != NULL) { 986 if (a->follow_symlinks || 987 archive_entry_filetype(entry) != AE_IFLNK) 988 *fd = a->open_on_current_dir(a->tree, path, 989 O_RDONLY | O_NONBLOCK); 990 if (*fd < 0) { 991 if (a->tree_enter_working_dir(a->tree) != 0) { 992 archive_set_error(&a->archive, errno, 993 "Couldn't access %s", path); 994 return (ARCHIVE_FAILED); 995 } 996 } 997 } 998 999 if (*fd >= 0) 1000 list_size = extattr_list_fd(*fd, namespace, NULL, 0); 1001 else if (!a->follow_symlinks) 1002 list_size = extattr_list_link(path, namespace, NULL, 0); 1003 else 1004 list_size = extattr_list_file(path, namespace, NULL, 0); 1005 1006 if (list_size == -1 && errno == EOPNOTSUPP) 1007 return (ARCHIVE_OK); 1008 if (list_size == -1) { 1009 archive_set_error(&a->archive, errno, 1010 "Couldn't list extended attributes"); 1011 return (ARCHIVE_WARN); 1012 } 1013 1014 if (list_size == 0) 1015 return (ARCHIVE_OK); 1016 1017 if ((list = malloc(list_size)) == NULL) { 1018 archive_set_error(&a->archive, errno, "Out of memory"); 1019 return (ARCHIVE_FATAL); 1020 } 1021 1022 if (*fd >= 0) 1023 list_size = extattr_list_fd(*fd, namespace, list, list_size); 1024 else if (!a->follow_symlinks) 1025 list_size = extattr_list_link(path, namespace, list, list_size); 1026 else 1027 list_size = extattr_list_file(path, namespace, list, list_size); 1028 1029 if (list_size == -1) { 1030 archive_set_error(&a->archive, errno, 1031 "Couldn't retrieve extended attributes"); 1032 free(list); 1033 return (ARCHIVE_WARN); 1034 } 1035 1036 p = list; 1037 while ((p - list) < list_size) { 1038 size_t len = 255 & (int)*p; 1039 char *name; 1040 1041 strcpy(buff, "user."); 1042 name = buff + strlen(buff); 1043 memcpy(name, p + 1, len); 1044 name[len] = '\0'; 1045 setup_xattr(a, entry, namespace, name, buff, *fd); 1046 p += 1 + len; 1047 } 1048 1049 free(list); 1050 return (ARCHIVE_OK); 1051} 1052 1053#else 1054 1055/* 1056 * Generic (stub) extended attribute support. 1057 */ 1058static int 1059setup_xattrs(struct archive_read_disk *a, 1060 struct archive_entry *entry, int *fd) 1061{ 1062 (void)a; /* UNUSED */ 1063 (void)entry; /* UNUSED */ 1064 (void)fd; /* UNUSED */ 1065 return (ARCHIVE_OK); 1066} 1067 1068#endif 1069 1070#if defined(HAVE_LINUX_FIEMAP_H) 1071 1072/* 1073 * Linux sparse interface. 1074 * 1075 * The FIEMAP ioctl returns an "extent" for each physical allocation 1076 * on disk. We need to process those to generate a more compact list 1077 * of logical file blocks. We also need to be very careful to use 1078 * FIEMAP_FLAG_SYNC here, since there are reports that Linux sometimes 1079 * does not report allocations for newly-written data that hasn't 1080 * been synced to disk. 1081 * 1082 * It's important to return a minimal sparse file list because we want 1083 * to not trigger sparse file extensions if we don't have to, since 1084 * not all readers support them. 1085 */ 1086 1087static int 1088setup_sparse(struct archive_read_disk *a, 1089 struct archive_entry *entry, int *fd) 1090{ 1091 char buff[4096]; 1092 struct fiemap *fm; 1093 struct fiemap_extent *fe; 1094 int64_t size; 1095 int count, do_fiemap; 1096 int exit_sts = ARCHIVE_OK; 1097 1098 if (archive_entry_filetype(entry) != AE_IFREG 1099 || archive_entry_size(entry) <= 0 1100 || archive_entry_hardlink(entry) != NULL) 1101 return (ARCHIVE_OK); 1102 1103 if (*fd < 0) { 1104 const char *path; 1105 1106 path = archive_entry_sourcepath(entry); 1107 if (path == NULL) 1108 path = archive_entry_pathname(entry); 1109 if (a->tree != NULL) 1110 *fd = a->open_on_current_dir(a->tree, path, 1111 O_RDONLY | O_NONBLOCK | O_CLOEXEC); 1112 else 1113 *fd = open(path, O_RDONLY | O_NONBLOCK | O_CLOEXEC); 1114 if (*fd < 0) { 1115 archive_set_error(&a->archive, errno, 1116 "Can't open `%s'", path); 1117 return (ARCHIVE_FAILED); 1118 } 1119 __archive_ensure_cloexec_flag(*fd); 1120 } 1121 1122 /* Initialize buffer to avoid the error valgrind complains about. */ 1123 memset(buff, 0, sizeof(buff)); 1124 count = (sizeof(buff) - sizeof(*fm))/sizeof(*fe); 1125 fm = (struct fiemap *)buff; 1126 fm->fm_start = 0; 1127 fm->fm_length = ~0ULL;; 1128 fm->fm_flags = FIEMAP_FLAG_SYNC; 1129 fm->fm_extent_count = count; 1130 do_fiemap = 1; 1131 size = archive_entry_size(entry); 1132 for (;;) { 1133 int i, r; 1134 1135 r = ioctl(*fd, FS_IOC_FIEMAP, fm); 1136 if (r < 0) { 1137 /* When something error happens, it is better we 1138 * should return ARCHIVE_OK because an earlier 1139 * version(<2.6.28) cannot perfom FS_IOC_FIEMAP. */ 1140 goto exit_setup_sparse; 1141 } 1142 if (fm->fm_mapped_extents == 0) 1143 break; 1144 fe = fm->fm_extents; 1145 for (i = 0; i < (int)fm->fm_mapped_extents; i++, fe++) { 1146 if (!(fe->fe_flags & FIEMAP_EXTENT_UNWRITTEN)) { 1147 /* The fe_length of the last block does not 1148 * adjust itself to its size files. */ 1149 int64_t length = fe->fe_length; 1150 if (fe->fe_logical + length > (uint64_t)size) 1151 length -= fe->fe_logical + length - size; 1152 if (fe->fe_logical == 0 && length == size) { 1153 /* This is not sparse. */ 1154 do_fiemap = 0; 1155 break; 1156 } 1157 if (length > 0) 1158 archive_entry_sparse_add_entry(entry, 1159 fe->fe_logical, length); 1160 } 1161 if (fe->fe_flags & FIEMAP_EXTENT_LAST) 1162 do_fiemap = 0; 1163 } 1164 if (do_fiemap) { 1165 fe = fm->fm_extents + fm->fm_mapped_extents -1; 1166 fm->fm_start = fe->fe_logical + fe->fe_length; 1167 } else 1168 break; 1169 } 1170exit_setup_sparse: 1171 return (exit_sts); 1172} 1173 1174#elif defined(SEEK_HOLE) && defined(SEEK_DATA) && defined(_PC_MIN_HOLE_SIZE) 1175 1176/* 1177 * FreeBSD and Solaris sparse interface. 1178 */ 1179 1180static int 1181setup_sparse(struct archive_read_disk *a, 1182 struct archive_entry *entry, int *fd) 1183{ 1184 int64_t size; 1185 off_t initial_off; /* FreeBSD/Solaris only, so off_t okay here */ 1186 off_t off_s, off_e; /* FreeBSD/Solaris only, so off_t okay here */ 1187 int exit_sts = ARCHIVE_OK; 1188 1189 if (archive_entry_filetype(entry) != AE_IFREG 1190 || archive_entry_size(entry) <= 0 1191 || archive_entry_hardlink(entry) != NULL) 1192 return (ARCHIVE_OK); 1193 1194 /* Does filesystem support the reporting of hole ? */ 1195 if (*fd < 0 && a->tree != NULL) { 1196 const char *path; 1197 1198 path = archive_entry_sourcepath(entry); 1199 if (path == NULL) 1200 path = archive_entry_pathname(entry); 1201 *fd = a->open_on_current_dir(a->tree, path, 1202 O_RDONLY | O_NONBLOCK); 1203 if (*fd < 0) { 1204 archive_set_error(&a->archive, errno, 1205 "Can't open `%s'", path); 1206 return (ARCHIVE_FAILED); 1207 } 1208 } 1209 1210 if (*fd >= 0) { 1211 if (fpathconf(*fd, _PC_MIN_HOLE_SIZE) <= 0) 1212 return (ARCHIVE_OK); 1213 initial_off = lseek(*fd, 0, SEEK_CUR); 1214 if (initial_off != 0) 1215 lseek(*fd, 0, SEEK_SET); 1216 } else { 1217 const char *path; 1218 1219 path = archive_entry_sourcepath(entry); 1220 if (path == NULL) 1221 path = archive_entry_pathname(entry); 1222 1223 if (pathconf(path, _PC_MIN_HOLE_SIZE) <= 0) 1224 return (ARCHIVE_OK); 1225 *fd = open(path, O_RDONLY | O_NONBLOCK | O_CLOEXEC); 1226 if (*fd < 0) { 1227 archive_set_error(&a->archive, errno, 1228 "Can't open `%s'", path); 1229 return (ARCHIVE_FAILED); 1230 } 1231 __archive_ensure_cloexec_flag(*fd); 1232 initial_off = 0; 1233 } 1234 1235 off_s = 0; 1236 size = archive_entry_size(entry); 1237 while (off_s < size) { 1238 off_s = lseek(*fd, off_s, SEEK_DATA); 1239 if (off_s == (off_t)-1) { 1240 if (errno == ENXIO) 1241 break;/* no more hole */ 1242 archive_set_error(&a->archive, errno, 1243 "lseek(SEEK_HOLE) failed"); 1244 exit_sts = ARCHIVE_FAILED; 1245 goto exit_setup_sparse; 1246 } 1247 off_e = lseek(*fd, off_s, SEEK_HOLE); 1248 if (off_e == (off_t)-1) { 1249 if (errno == ENXIO) { 1250 off_e = lseek(*fd, 0, SEEK_END); 1251 if (off_e != (off_t)-1) 1252 break;/* no more data */ 1253 } 1254 archive_set_error(&a->archive, errno, 1255 "lseek(SEEK_DATA) failed"); 1256 exit_sts = ARCHIVE_FAILED; 1257 goto exit_setup_sparse; 1258 } 1259 if (off_s == 0 && off_e == size) 1260 break;/* This is not spase. */ 1261 archive_entry_sparse_add_entry(entry, off_s, 1262 off_e - off_s); 1263 off_s = off_e; 1264 } 1265exit_setup_sparse: 1266 lseek(*fd, initial_off, SEEK_SET); 1267 return (exit_sts); 1268} 1269 1270#else 1271 1272/* 1273 * Generic (stub) sparse support. 1274 */ 1275static int 1276setup_sparse(struct archive_read_disk *a, 1277 struct archive_entry *entry, int *fd) 1278{ 1279 (void)a; /* UNUSED */ 1280 (void)entry; /* UNUSED */ 1281 (void)fd; /* UNUSED */ 1282 return (ARCHIVE_OK); 1283} 1284 1285#endif 1286 1287#endif /* !defined(_WIN32) || defined(__CYGWIN__) */ 1288 1289