1 /*- 2 * Copyright (c) 2003-2010 Tim Kientzle 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 * $FreeBSD: stable/10/contrib/libarchive/libarchive/archive.h 368708 2020-12-16 22:25:40Z mm $ 26 */ 27 28 #ifndef ARCHIVE_H_INCLUDED 29 #define ARCHIVE_H_INCLUDED 30 31 /* 32 * The version number is expressed as a single integer that makes it 33 * easy to compare versions at build time: for version a.b.c, the 34 * version number is printf("%d%03d%03d",a,b,c). For example, if you 35 * know your application requires version 2.12.108 or later, you can 36 * assert that ARCHIVE_VERSION_NUMBER >= 2012108. 37 */ 38 /* Note: Compiler will complain if this does not match archive_entry.h! */ 39 #define ARCHIVE_VERSION_NUMBER 3005000 40 41 #include <sys/stat.h> 42 #include <stddef.h> /* for wchar_t */ 43 #include <stdio.h> /* For FILE * */ 44 #include <time.h> /* For time_t */ 45 46 /* 47 * Note: archive.h is for use outside of libarchive; the configuration 48 * headers (config.h, archive_platform.h, etc.) are purely internal. 49 * Do NOT use HAVE_XXX configuration macros to control the behavior of 50 * this header! If you must conditionalize, use predefined compiler and/or 51 * platform macros. 52 */ 53 #if defined(__BORLANDC__) && __BORLANDC__ >= 0x560 54 # include <stdint.h> 55 #elif !defined(__WATCOMC__) && !defined(_MSC_VER) && !defined(__INTERIX) && !defined(__BORLANDC__) && !defined(_SCO_DS) && !defined(__osf__) && !defined(__CLANG_INTTYPES_H) 56 # include <inttypes.h> 57 #endif 58 59 /* Get appropriate definitions of 64-bit integer */ 60 #if !defined(__LA_INT64_T_DEFINED) 61 /* Older code relied on the __LA_INT64_T macro; after 4.0 we'll switch to the typedef exclusively. */ 62 # if ARCHIVE_VERSION_NUMBER < 4000000 63 #define __LA_INT64_T la_int64_t 64 # endif 65 #define __LA_INT64_T_DEFINED 66 # if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__WATCOMC__) 67 typedef __int64 la_int64_t; 68 # else 69 # include <unistd.h> /* ssize_t */ 70 # if defined(_SCO_DS) || defined(__osf__) 71 typedef long long la_int64_t; 72 # else 73 typedef int64_t la_int64_t; 74 # endif 75 # endif 76 #endif 77 78 /* The la_ssize_t should match the type used in 'struct stat' */ 79 #if !defined(__LA_SSIZE_T_DEFINED) 80 /* Older code relied on the __LA_SSIZE_T macro; after 4.0 we'll switch to the typedef exclusively. */ 81 # if ARCHIVE_VERSION_NUMBER < 4000000 82 #define __LA_SSIZE_T la_ssize_t 83 # endif 84 #define __LA_SSIZE_T_DEFINED 85 # if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__WATCOMC__) 86 # if defined(_SSIZE_T_DEFINED) || defined(_SSIZE_T_) 87 typedef ssize_t la_ssize_t; 88 # elif defined(_WIN64) 89 typedef __int64 la_ssize_t; 90 # else 91 typedef long la_ssize_t; 92 # endif 93 # else 94 # include <unistd.h> /* ssize_t */ 95 typedef ssize_t la_ssize_t; 96 # endif 97 #endif 98 99 /* Large file support for Android */ 100 #ifdef __ANDROID__ 101 #include "android_lf.h" 102 #endif 103 104 /* 105 * On Windows, define LIBARCHIVE_STATIC if you're building or using a 106 * .lib. The default here assumes you're building a DLL. Only 107 * libarchive source should ever define __LIBARCHIVE_BUILD. 108 */ 109 #if ((defined __WIN32__) || (defined _WIN32) || defined(__CYGWIN__)) && (!defined LIBARCHIVE_STATIC) 110 # ifdef __LIBARCHIVE_BUILD 111 # ifdef __GNUC__ 112 # define __LA_DECL __attribute__((dllexport)) extern 113 # else 114 # define __LA_DECL __declspec(dllexport) 115 # endif 116 # else 117 # ifdef __GNUC__ 118 # define __LA_DECL 119 # else 120 # define __LA_DECL __declspec(dllimport) 121 # endif 122 # endif 123 #else 124 /* Static libraries or non-Windows needs no special declaration. */ 125 # define __LA_DECL 126 #endif 127 128 #if defined(__GNUC__) && __GNUC__ >= 3 && !defined(__MINGW32__) 129 #define __LA_PRINTF(fmtarg, firstvararg) \ 130 __attribute__((__format__ (__printf__, fmtarg, firstvararg))) 131 #else 132 #define __LA_PRINTF(fmtarg, firstvararg) /* nothing */ 133 #endif 134 135 #if defined(__GNUC__) && __GNUC__ >= 3 && __GNUC_MINOR__ >= 1 136 # define __LA_DEPRECATED __attribute__((deprecated)) 137 #else 138 # define __LA_DEPRECATED 139 #endif 140 141 #ifdef __cplusplus 142 extern "C" { 143 #endif 144 145 /* 146 * The version number is provided as both a macro and a function. 147 * The macro identifies the installed header; the function identifies 148 * the library version (which may not be the same if you're using a 149 * dynamically-linked version of the library). Of course, if the 150 * header and library are very different, you should expect some 151 * strangeness. Don't do that. 152 */ 153 __LA_DECL int archive_version_number(void); 154 155 /* 156 * Textual name/version of the library, useful for version displays. 157 */ 158 #define ARCHIVE_VERSION_ONLY_STRING "3.5.0" 159 #define ARCHIVE_VERSION_STRING "libarchive " ARCHIVE_VERSION_ONLY_STRING 160 __LA_DECL const char * archive_version_string(void); 161 162 /* 163 * Detailed textual name/version of the library and its dependencies. 164 * This has the form: 165 * "libarchive x.y.z zlib/a.b.c liblzma/d.e.f ... etc ..." 166 * the list of libraries described here will vary depending on how 167 * libarchive was compiled. 168 */ 169 __LA_DECL const char * archive_version_details(void); 170 171 /* 172 * Returns NULL if libarchive was compiled without the associated library. 173 * Otherwise, returns the version number that libarchive was compiled 174 * against. 175 */ 176 __LA_DECL const char * archive_zlib_version(void); 177 __LA_DECL const char * archive_liblzma_version(void); 178 __LA_DECL const char * archive_bzlib_version(void); 179 __LA_DECL const char * archive_liblz4_version(void); 180 __LA_DECL const char * archive_libzstd_version(void); 181 182 /* Declare our basic types. */ 183 struct archive; 184 struct archive_entry; 185 186 /* 187 * Error codes: Use archive_errno() and archive_error_string() 188 * to retrieve details. Unless specified otherwise, all functions 189 * that return 'int' use these codes. 190 */ 191 #define ARCHIVE_EOF 1 /* Found end of archive. */ 192 #define ARCHIVE_OK 0 /* Operation was successful. */ 193 #define ARCHIVE_RETRY (-10) /* Retry might succeed. */ 194 #define ARCHIVE_WARN (-20) /* Partial success. */ 195 /* For example, if write_header "fails", then you can't push data. */ 196 #define ARCHIVE_FAILED (-25) /* Current operation cannot complete. */ 197 /* But if write_header is "fatal," then this archive is dead and useless. */ 198 #define ARCHIVE_FATAL (-30) /* No more operations are possible. */ 199 200 /* 201 * As far as possible, archive_errno returns standard platform errno codes. 202 * Of course, the details vary by platform, so the actual definitions 203 * here are stored in "archive_platform.h". The symbols are listed here 204 * for reference; as a rule, clients should not need to know the exact 205 * platform-dependent error code. 206 */ 207 /* Unrecognized or invalid file format. */ 208 /* #define ARCHIVE_ERRNO_FILE_FORMAT */ 209 /* Illegal usage of the library. */ 210 /* #define ARCHIVE_ERRNO_PROGRAMMER_ERROR */ 211 /* Unknown or unclassified error. */ 212 /* #define ARCHIVE_ERRNO_MISC */ 213 214 /* 215 * Callbacks are invoked to automatically read/skip/write/open/close the 216 * archive. You can provide your own for complex tasks (like breaking 217 * archives across multiple tapes) or use standard ones built into the 218 * library. 219 */ 220 221 /* Returns pointer and size of next block of data from archive. */ 222 typedef la_ssize_t archive_read_callback(struct archive *, 223 void *_client_data, const void **_buffer); 224 225 /* Skips at most request bytes from archive and returns the skipped amount. 226 * This may skip fewer bytes than requested; it may even skip zero bytes. 227 * If you do skip fewer bytes than requested, libarchive will invoke your 228 * read callback and discard data as necessary to make up the full skip. 229 */ 230 typedef la_int64_t archive_skip_callback(struct archive *, 231 void *_client_data, la_int64_t request); 232 233 /* Seeks to specified location in the file and returns the position. 234 * Whence values are SEEK_SET, SEEK_CUR, SEEK_END from stdio.h. 235 * Return ARCHIVE_FATAL if the seek fails for any reason. 236 */ 237 typedef la_int64_t archive_seek_callback(struct archive *, 238 void *_client_data, la_int64_t offset, int whence); 239 240 /* Returns size actually written, zero on EOF, -1 on error. */ 241 typedef la_ssize_t archive_write_callback(struct archive *, 242 void *_client_data, 243 const void *_buffer, size_t _length); 244 245 typedef int archive_open_callback(struct archive *, void *_client_data); 246 247 typedef int archive_close_callback(struct archive *, void *_client_data); 248 249 typedef int archive_free_callback(struct archive *, void *_client_data); 250 251 /* Switches from one client data object to the next/prev client data object. 252 * This is useful for reading from different data blocks such as a set of files 253 * that make up one large file. 254 */ 255 typedef int archive_switch_callback(struct archive *, void *_client_data1, 256 void *_client_data2); 257 258 /* 259 * Returns a passphrase used for encryption or decryption, NULL on nothing 260 * to do and give it up. 261 */ 262 typedef const char *archive_passphrase_callback(struct archive *, 263 void *_client_data); 264 265 /* 266 * Codes to identify various stream filters. 267 */ 268 #define ARCHIVE_FILTER_NONE 0 269 #define ARCHIVE_FILTER_GZIP 1 270 #define ARCHIVE_FILTER_BZIP2 2 271 #define ARCHIVE_FILTER_COMPRESS 3 272 #define ARCHIVE_FILTER_PROGRAM 4 273 #define ARCHIVE_FILTER_LZMA 5 274 #define ARCHIVE_FILTER_XZ 6 275 #define ARCHIVE_FILTER_UU 7 276 #define ARCHIVE_FILTER_RPM 8 277 #define ARCHIVE_FILTER_LZIP 9 278 #define ARCHIVE_FILTER_LRZIP 10 279 #define ARCHIVE_FILTER_LZOP 11 280 #define ARCHIVE_FILTER_GRZIP 12 281 #define ARCHIVE_FILTER_LZ4 13 282 #define ARCHIVE_FILTER_ZSTD 14 283 284 #if ARCHIVE_VERSION_NUMBER < 4000000 285 #define ARCHIVE_COMPRESSION_NONE ARCHIVE_FILTER_NONE 286 #define ARCHIVE_COMPRESSION_GZIP ARCHIVE_FILTER_GZIP 287 #define ARCHIVE_COMPRESSION_BZIP2 ARCHIVE_FILTER_BZIP2 288 #define ARCHIVE_COMPRESSION_COMPRESS ARCHIVE_FILTER_COMPRESS 289 #define ARCHIVE_COMPRESSION_PROGRAM ARCHIVE_FILTER_PROGRAM 290 #define ARCHIVE_COMPRESSION_LZMA ARCHIVE_FILTER_LZMA 291 #define ARCHIVE_COMPRESSION_XZ ARCHIVE_FILTER_XZ 292 #define ARCHIVE_COMPRESSION_UU ARCHIVE_FILTER_UU 293 #define ARCHIVE_COMPRESSION_RPM ARCHIVE_FILTER_RPM 294 #define ARCHIVE_COMPRESSION_LZIP ARCHIVE_FILTER_LZIP 295 #define ARCHIVE_COMPRESSION_LRZIP ARCHIVE_FILTER_LRZIP 296 #endif 297 298 /* 299 * Codes returned by archive_format. 300 * 301 * Top 16 bits identifies the format family (e.g., "tar"); lower 302 * 16 bits indicate the variant. This is updated by read_next_header. 303 * Note that the lower 16 bits will often vary from entry to entry. 304 * In some cases, this variation occurs as libarchive learns more about 305 * the archive (for example, later entries might utilize extensions that 306 * weren't necessary earlier in the archive; in this case, libarchive 307 * will change the format code to indicate the extended format that 308 * was used). In other cases, it's because different tools have 309 * modified the archive and so different parts of the archive 310 * actually have slightly different formats. (Both tar and cpio store 311 * format codes in each entry, so it is quite possible for each 312 * entry to be in a different format.) 313 */ 314 #define ARCHIVE_FORMAT_BASE_MASK 0xff0000 315 #define ARCHIVE_FORMAT_CPIO 0x10000 316 #define ARCHIVE_FORMAT_CPIO_POSIX (ARCHIVE_FORMAT_CPIO | 1) 317 #define ARCHIVE_FORMAT_CPIO_BIN_LE (ARCHIVE_FORMAT_CPIO | 2) 318 #define ARCHIVE_FORMAT_CPIO_BIN_BE (ARCHIVE_FORMAT_CPIO | 3) 319 #define ARCHIVE_FORMAT_CPIO_SVR4_NOCRC (ARCHIVE_FORMAT_CPIO | 4) 320 #define ARCHIVE_FORMAT_CPIO_SVR4_CRC (ARCHIVE_FORMAT_CPIO | 5) 321 #define ARCHIVE_FORMAT_CPIO_AFIO_LARGE (ARCHIVE_FORMAT_CPIO | 6) 322 #define ARCHIVE_FORMAT_SHAR 0x20000 323 #define ARCHIVE_FORMAT_SHAR_BASE (ARCHIVE_FORMAT_SHAR | 1) 324 #define ARCHIVE_FORMAT_SHAR_DUMP (ARCHIVE_FORMAT_SHAR | 2) 325 #define ARCHIVE_FORMAT_TAR 0x30000 326 #define ARCHIVE_FORMAT_TAR_USTAR (ARCHIVE_FORMAT_TAR | 1) 327 #define ARCHIVE_FORMAT_TAR_PAX_INTERCHANGE (ARCHIVE_FORMAT_TAR | 2) 328 #define ARCHIVE_FORMAT_TAR_PAX_RESTRICTED (ARCHIVE_FORMAT_TAR | 3) 329 #define ARCHIVE_FORMAT_TAR_GNUTAR (ARCHIVE_FORMAT_TAR | 4) 330 #define ARCHIVE_FORMAT_ISO9660 0x40000 331 #define ARCHIVE_FORMAT_ISO9660_ROCKRIDGE (ARCHIVE_FORMAT_ISO9660 | 1) 332 #define ARCHIVE_FORMAT_ZIP 0x50000 333 #define ARCHIVE_FORMAT_EMPTY 0x60000 334 #define ARCHIVE_FORMAT_AR 0x70000 335 #define ARCHIVE_FORMAT_AR_GNU (ARCHIVE_FORMAT_AR | 1) 336 #define ARCHIVE_FORMAT_AR_BSD (ARCHIVE_FORMAT_AR | 2) 337 #define ARCHIVE_FORMAT_MTREE 0x80000 338 #define ARCHIVE_FORMAT_RAW 0x90000 339 #define ARCHIVE_FORMAT_XAR 0xA0000 340 #define ARCHIVE_FORMAT_LHA 0xB0000 341 #define ARCHIVE_FORMAT_CAB 0xC0000 342 #define ARCHIVE_FORMAT_RAR 0xD0000 343 #define ARCHIVE_FORMAT_7ZIP 0xE0000 344 #define ARCHIVE_FORMAT_WARC 0xF0000 345 #define ARCHIVE_FORMAT_RAR_V5 0x100000 346 347 /* 348 * Codes returned by archive_read_format_capabilities(). 349 * 350 * This list can be extended with values between 0 and 0xffff. 351 * The original purpose of this list was to let different archive 352 * format readers expose their general capabilities in terms of 353 * encryption. 354 */ 355 #define ARCHIVE_READ_FORMAT_CAPS_NONE (0) /* no special capabilities */ 356 #define ARCHIVE_READ_FORMAT_CAPS_ENCRYPT_DATA (1<<0) /* reader can detect encrypted data */ 357 #define ARCHIVE_READ_FORMAT_CAPS_ENCRYPT_METADATA (1<<1) /* reader can detect encryptable metadata (pathname, mtime, etc.) */ 358 359 /* 360 * Codes returned by archive_read_has_encrypted_entries(). 361 * 362 * In case the archive does not support encryption detection at all 363 * ARCHIVE_READ_FORMAT_ENCRYPTION_UNSUPPORTED is returned. If the reader 364 * for some other reason (e.g. not enough bytes read) cannot say if 365 * there are encrypted entries, ARCHIVE_READ_FORMAT_ENCRYPTION_DONT_KNOW 366 * is returned. 367 */ 368 #define ARCHIVE_READ_FORMAT_ENCRYPTION_UNSUPPORTED -2 369 #define ARCHIVE_READ_FORMAT_ENCRYPTION_DONT_KNOW -1 370 371 /*- 372 * Basic outline for reading an archive: 373 * 1) Ask archive_read_new for an archive reader object. 374 * 2) Update any global properties as appropriate. 375 * In particular, you'll certainly want to call appropriate 376 * archive_read_support_XXX functions. 377 * 3) Call archive_read_open_XXX to open the archive 378 * 4) Repeatedly call archive_read_next_header to get information about 379 * successive archive entries. Call archive_read_data to extract 380 * data for entries of interest. 381 * 5) Call archive_read_free to end processing. 382 */ 383 __LA_DECL struct archive *archive_read_new(void); 384 385 /* 386 * The archive_read_support_XXX calls enable auto-detect for this 387 * archive handle. They also link in the necessary support code. 388 * For example, if you don't want bzlib linked in, don't invoke 389 * support_compression_bzip2(). The "all" functions provide the 390 * obvious shorthand. 391 */ 392 393 #if ARCHIVE_VERSION_NUMBER < 4000000 394 __LA_DECL int archive_read_support_compression_all(struct archive *) 395 __LA_DEPRECATED; 396 __LA_DECL int archive_read_support_compression_bzip2(struct archive *) 397 __LA_DEPRECATED; 398 __LA_DECL int archive_read_support_compression_compress(struct archive *) 399 __LA_DEPRECATED; 400 __LA_DECL int archive_read_support_compression_gzip(struct archive *) 401 __LA_DEPRECATED; 402 __LA_DECL int archive_read_support_compression_lzip(struct archive *) 403 __LA_DEPRECATED; 404 __LA_DECL int archive_read_support_compression_lzma(struct archive *) 405 __LA_DEPRECATED; 406 __LA_DECL int archive_read_support_compression_none(struct archive *) 407 __LA_DEPRECATED; 408 __LA_DECL int archive_read_support_compression_program(struct archive *, 409 const char *command) __LA_DEPRECATED; 410 __LA_DECL int archive_read_support_compression_program_signature 411 (struct archive *, const char *, 412 const void * /* match */, size_t) __LA_DEPRECATED; 413 414 __LA_DECL int archive_read_support_compression_rpm(struct archive *) 415 __LA_DEPRECATED; 416 __LA_DECL int archive_read_support_compression_uu(struct archive *) 417 __LA_DEPRECATED; 418 __LA_DECL int archive_read_support_compression_xz(struct archive *) 419 __LA_DEPRECATED; 420 #endif 421 422 __LA_DECL int archive_read_support_filter_all(struct archive *); 423 __LA_DECL int archive_read_support_filter_by_code(struct archive *, int); 424 __LA_DECL int archive_read_support_filter_bzip2(struct archive *); 425 __LA_DECL int archive_read_support_filter_compress(struct archive *); 426 __LA_DECL int archive_read_support_filter_gzip(struct archive *); 427 __LA_DECL int archive_read_support_filter_grzip(struct archive *); 428 __LA_DECL int archive_read_support_filter_lrzip(struct archive *); 429 __LA_DECL int archive_read_support_filter_lz4(struct archive *); 430 __LA_DECL int archive_read_support_filter_lzip(struct archive *); 431 __LA_DECL int archive_read_support_filter_lzma(struct archive *); 432 __LA_DECL int archive_read_support_filter_lzop(struct archive *); 433 __LA_DECL int archive_read_support_filter_none(struct archive *); 434 __LA_DECL int archive_read_support_filter_program(struct archive *, 435 const char *command); 436 __LA_DECL int archive_read_support_filter_program_signature 437 (struct archive *, const char * /* cmd */, 438 const void * /* match */, size_t); 439 __LA_DECL int archive_read_support_filter_rpm(struct archive *); 440 __LA_DECL int archive_read_support_filter_uu(struct archive *); 441 __LA_DECL int archive_read_support_filter_xz(struct archive *); 442 __LA_DECL int archive_read_support_filter_zstd(struct archive *); 443 444 __LA_DECL int archive_read_support_format_7zip(struct archive *); 445 __LA_DECL int archive_read_support_format_all(struct archive *); 446 __LA_DECL int archive_read_support_format_ar(struct archive *); 447 __LA_DECL int archive_read_support_format_by_code(struct archive *, int); 448 __LA_DECL int archive_read_support_format_cab(struct archive *); 449 __LA_DECL int archive_read_support_format_cpio(struct archive *); 450 __LA_DECL int archive_read_support_format_empty(struct archive *); 451 __LA_DECL int archive_read_support_format_gnutar(struct archive *); 452 __LA_DECL int archive_read_support_format_iso9660(struct archive *); 453 __LA_DECL int archive_read_support_format_lha(struct archive *); 454 __LA_DECL int archive_read_support_format_mtree(struct archive *); 455 __LA_DECL int archive_read_support_format_rar(struct archive *); 456 __LA_DECL int archive_read_support_format_rar5(struct archive *); 457 __LA_DECL int archive_read_support_format_raw(struct archive *); 458 __LA_DECL int archive_read_support_format_tar(struct archive *); 459 __LA_DECL int archive_read_support_format_warc(struct archive *); 460 __LA_DECL int archive_read_support_format_xar(struct archive *); 461 /* archive_read_support_format_zip() enables both streamable and seekable 462 * zip readers. */ 463 __LA_DECL int archive_read_support_format_zip(struct archive *); 464 /* Reads Zip archives as stream from beginning to end. Doesn't 465 * correctly handle SFX ZIP files or ZIP archives that have been modified 466 * in-place. */ 467 __LA_DECL int archive_read_support_format_zip_streamable(struct archive *); 468 /* Reads starting from central directory; requires seekable input. */ 469 __LA_DECL int archive_read_support_format_zip_seekable(struct archive *); 470 471 /* Functions to manually set the format and filters to be used. This is 472 * useful to bypass the bidding process when the format and filters to use 473 * is known in advance. 474 */ 475 __LA_DECL int archive_read_set_format(struct archive *, int); 476 __LA_DECL int archive_read_append_filter(struct archive *, int); 477 __LA_DECL int archive_read_append_filter_program(struct archive *, 478 const char *); 479 __LA_DECL int archive_read_append_filter_program_signature 480 (struct archive *, const char *, const void * /* match */, size_t); 481 482 /* Set various callbacks. */ 483 __LA_DECL int archive_read_set_open_callback(struct archive *, 484 archive_open_callback *); 485 __LA_DECL int archive_read_set_read_callback(struct archive *, 486 archive_read_callback *); 487 __LA_DECL int archive_read_set_seek_callback(struct archive *, 488 archive_seek_callback *); 489 __LA_DECL int archive_read_set_skip_callback(struct archive *, 490 archive_skip_callback *); 491 __LA_DECL int archive_read_set_close_callback(struct archive *, 492 archive_close_callback *); 493 /* Callback used to switch between one data object to the next */ 494 __LA_DECL int archive_read_set_switch_callback(struct archive *, 495 archive_switch_callback *); 496 497 /* This sets the first data object. */ 498 __LA_DECL int archive_read_set_callback_data(struct archive *, void *); 499 /* This sets data object at specified index */ 500 __LA_DECL int archive_read_set_callback_data2(struct archive *, void *, 501 unsigned int); 502 /* This adds a data object at the specified index. */ 503 __LA_DECL int archive_read_add_callback_data(struct archive *, void *, 504 unsigned int); 505 /* This appends a data object to the end of list */ 506 __LA_DECL int archive_read_append_callback_data(struct archive *, void *); 507 /* This prepends a data object to the beginning of list */ 508 __LA_DECL int archive_read_prepend_callback_data(struct archive *, void *); 509 510 /* Opening freezes the callbacks. */ 511 __LA_DECL int archive_read_open1(struct archive *); 512 513 /* Convenience wrappers around the above. */ 514 __LA_DECL int archive_read_open(struct archive *, void *_client_data, 515 archive_open_callback *, archive_read_callback *, 516 archive_close_callback *); 517 __LA_DECL int archive_read_open2(struct archive *, void *_client_data, 518 archive_open_callback *, archive_read_callback *, 519 archive_skip_callback *, archive_close_callback *); 520 521 /* 522 * A variety of shortcuts that invoke archive_read_open() with 523 * canned callbacks suitable for common situations. The ones that 524 * accept a block size handle tape blocking correctly. 525 */ 526 /* Use this if you know the filename. Note: NULL indicates stdin. */ 527 __LA_DECL int archive_read_open_filename(struct archive *, 528 const char *_filename, size_t _block_size); 529 /* Use this for reading multivolume files by filenames. 530 * NOTE: Must be NULL terminated. Sorting is NOT done. */ 531 __LA_DECL int archive_read_open_filenames(struct archive *, 532 const char **_filenames, size_t _block_size); 533 __LA_DECL int archive_read_open_filename_w(struct archive *, 534 const wchar_t *_filename, size_t _block_size); 535 /* archive_read_open_file() is a deprecated synonym for ..._open_filename(). */ 536 __LA_DECL int archive_read_open_file(struct archive *, 537 const char *_filename, size_t _block_size) __LA_DEPRECATED; 538 /* Read an archive that's stored in memory. */ 539 __LA_DECL int archive_read_open_memory(struct archive *, 540 const void * buff, size_t size); 541 /* A more involved version that is only used for internal testing. */ 542 __LA_DECL int archive_read_open_memory2(struct archive *a, const void *buff, 543 size_t size, size_t read_size); 544 /* Read an archive that's already open, using the file descriptor. */ 545 __LA_DECL int archive_read_open_fd(struct archive *, int _fd, 546 size_t _block_size); 547 /* Read an archive that's already open, using a FILE *. */ 548 /* Note: DO NOT use this with tape drives. */ 549 __LA_DECL int archive_read_open_FILE(struct archive *, FILE *_file); 550 551 /* Parses and returns next entry header. */ 552 __LA_DECL int archive_read_next_header(struct archive *, 553 struct archive_entry **); 554 555 /* Parses and returns next entry header using the archive_entry passed in */ 556 __LA_DECL int archive_read_next_header2(struct archive *, 557 struct archive_entry *); 558 559 /* 560 * Retrieve the byte offset in UNCOMPRESSED data where last-read 561 * header started. 562 */ 563 __LA_DECL la_int64_t archive_read_header_position(struct archive *); 564 565 /* 566 * Returns 1 if the archive contains at least one encrypted entry. 567 * If the archive format not support encryption at all 568 * ARCHIVE_READ_FORMAT_ENCRYPTION_UNSUPPORTED is returned. 569 * If for any other reason (e.g. not enough data read so far) 570 * we cannot say whether there are encrypted entries, then 571 * ARCHIVE_READ_FORMAT_ENCRYPTION_DONT_KNOW is returned. 572 * In general, this function will return values below zero when the 573 * reader is uncertain or totally incapable of encryption support. 574 * When this function returns 0 you can be sure that the reader 575 * supports encryption detection but no encrypted entries have 576 * been found yet. 577 * 578 * NOTE: If the metadata/header of an archive is also encrypted, you 579 * cannot rely on the number of encrypted entries. That is why this 580 * function does not return the number of encrypted entries but# 581 * just shows that there are some. 582 */ 583 __LA_DECL int archive_read_has_encrypted_entries(struct archive *); 584 585 /* 586 * Returns a bitmask of capabilities that are supported by the archive format reader. 587 * If the reader has no special capabilities, ARCHIVE_READ_FORMAT_CAPS_NONE is returned. 588 */ 589 __LA_DECL int archive_read_format_capabilities(struct archive *); 590 591 /* Read data from the body of an entry. Similar to read(2). */ 592 __LA_DECL la_ssize_t archive_read_data(struct archive *, 593 void *, size_t); 594 595 /* Seek within the body of an entry. Similar to lseek(2). */ 596 __LA_DECL la_int64_t archive_seek_data(struct archive *, la_int64_t, int); 597 598 /* 599 * A zero-copy version of archive_read_data that also exposes the file offset 600 * of each returned block. Note that the client has no way to specify 601 * the desired size of the block. The API does guarantee that offsets will 602 * be strictly increasing and that returned blocks will not overlap. 603 */ 604 __LA_DECL int archive_read_data_block(struct archive *a, 605 const void **buff, size_t *size, la_int64_t *offset); 606 607 /*- 608 * Some convenience functions that are built on archive_read_data: 609 * 'skip': skips entire entry 610 * 'into_buffer': writes data into memory buffer that you provide 611 * 'into_fd': writes data to specified filedes 612 */ 613 __LA_DECL int archive_read_data_skip(struct archive *); 614 __LA_DECL int archive_read_data_into_fd(struct archive *, int fd); 615 616 /* 617 * Set read options. 618 */ 619 /* Apply option to the format only. */ 620 __LA_DECL int archive_read_set_format_option(struct archive *_a, 621 const char *m, const char *o, 622 const char *v); 623 /* Apply option to the filter only. */ 624 __LA_DECL int archive_read_set_filter_option(struct archive *_a, 625 const char *m, const char *o, 626 const char *v); 627 /* Apply option to both the format and the filter. */ 628 __LA_DECL int archive_read_set_option(struct archive *_a, 629 const char *m, const char *o, 630 const char *v); 631 /* Apply option string to both the format and the filter. */ 632 __LA_DECL int archive_read_set_options(struct archive *_a, 633 const char *opts); 634 635 /* 636 * Add a decryption passphrase. 637 */ 638 __LA_DECL int archive_read_add_passphrase(struct archive *, const char *); 639 __LA_DECL int archive_read_set_passphrase_callback(struct archive *, 640 void *client_data, archive_passphrase_callback *); 641 642 643 /*- 644 * Convenience function to recreate the current entry (whose header 645 * has just been read) on disk. 646 * 647 * This does quite a bit more than just copy data to disk. It also: 648 * - Creates intermediate directories as required. 649 * - Manages directory permissions: non-writable directories will 650 * be initially created with write permission enabled; when the 651 * archive is closed, dir permissions are edited to the values specified 652 * in the archive. 653 * - Checks hardlinks: hardlinks will not be extracted unless the 654 * linked-to file was also extracted within the same session. (TODO) 655 */ 656 657 /* The "flags" argument selects optional behavior, 'OR' the flags you want. */ 658 659 /* Default: Do not try to set owner/group. */ 660 #define ARCHIVE_EXTRACT_OWNER (0x0001) 661 /* Default: Do obey umask, do not restore SUID/SGID/SVTX bits. */ 662 #define ARCHIVE_EXTRACT_PERM (0x0002) 663 /* Default: Do not restore mtime/atime. */ 664 #define ARCHIVE_EXTRACT_TIME (0x0004) 665 /* Default: Replace existing files. */ 666 #define ARCHIVE_EXTRACT_NO_OVERWRITE (0x0008) 667 /* Default: Try create first, unlink only if create fails with EEXIST. */ 668 #define ARCHIVE_EXTRACT_UNLINK (0x0010) 669 /* Default: Do not restore ACLs. */ 670 #define ARCHIVE_EXTRACT_ACL (0x0020) 671 /* Default: Do not restore fflags. */ 672 #define ARCHIVE_EXTRACT_FFLAGS (0x0040) 673 /* Default: Do not restore xattrs. */ 674 #define ARCHIVE_EXTRACT_XATTR (0x0080) 675 /* Default: Do not try to guard against extracts redirected by symlinks. */ 676 /* Note: With ARCHIVE_EXTRACT_UNLINK, will remove any intermediate symlink. */ 677 #define ARCHIVE_EXTRACT_SECURE_SYMLINKS (0x0100) 678 /* Default: Do not reject entries with '..' as path elements. */ 679 #define ARCHIVE_EXTRACT_SECURE_NODOTDOT (0x0200) 680 /* Default: Create parent directories as needed. */ 681 #define ARCHIVE_EXTRACT_NO_AUTODIR (0x0400) 682 /* Default: Overwrite files, even if one on disk is newer. */ 683 #define ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER (0x0800) 684 /* Detect blocks of 0 and write holes instead. */ 685 #define ARCHIVE_EXTRACT_SPARSE (0x1000) 686 /* Default: Do not restore Mac extended metadata. */ 687 /* This has no effect except on Mac OS. */ 688 #define ARCHIVE_EXTRACT_MAC_METADATA (0x2000) 689 /* Default: Use HFS+ compression if it was compressed. */ 690 /* This has no effect except on Mac OS v10.6 or later. */ 691 #define ARCHIVE_EXTRACT_NO_HFS_COMPRESSION (0x4000) 692 /* Default: Do not use HFS+ compression if it was not compressed. */ 693 /* This has no effect except on Mac OS v10.6 or later. */ 694 #define ARCHIVE_EXTRACT_HFS_COMPRESSION_FORCED (0x8000) 695 /* Default: Do not reject entries with absolute paths */ 696 #define ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS (0x10000) 697 /* Default: Do not clear no-change flags when unlinking object */ 698 #define ARCHIVE_EXTRACT_CLEAR_NOCHANGE_FFLAGS (0x20000) 699 /* Default: Do not extract atomically (using rename) */ 700 #define ARCHIVE_EXTRACT_SAFE_WRITES (0x40000) 701 702 __LA_DECL int archive_read_extract(struct archive *, struct archive_entry *, 703 int flags); 704 __LA_DECL int archive_read_extract2(struct archive *, struct archive_entry *, 705 struct archive * /* dest */); 706 __LA_DECL void archive_read_extract_set_progress_callback(struct archive *, 707 void (*_progress_func)(void *), void *_user_data); 708 709 /* Record the dev/ino of a file that will not be written. This is 710 * generally set to the dev/ino of the archive being read. */ 711 __LA_DECL void archive_read_extract_set_skip_file(struct archive *, 712 la_int64_t, la_int64_t); 713 714 /* Close the file and release most resources. */ 715 __LA_DECL int archive_read_close(struct archive *); 716 /* Release all resources and destroy the object. */ 717 /* Note that archive_read_free will call archive_read_close for you. */ 718 __LA_DECL int archive_read_free(struct archive *); 719 #if ARCHIVE_VERSION_NUMBER < 4000000 720 /* Synonym for archive_read_free() for backwards compatibility. */ 721 __LA_DECL int archive_read_finish(struct archive *) __LA_DEPRECATED; 722 #endif 723 724 /*- 725 * To create an archive: 726 * 1) Ask archive_write_new for an archive writer object. 727 * 2) Set any global properties. In particular, you should set 728 * the compression and format to use. 729 * 3) Call archive_write_open to open the file (most people 730 * will use archive_write_open_file or archive_write_open_fd, 731 * which provide convenient canned I/O callbacks for you). 732 * 4) For each entry: 733 * - construct an appropriate struct archive_entry structure 734 * - archive_write_header to write the header 735 * - archive_write_data to write the entry data 736 * 5) archive_write_close to close the output 737 * 6) archive_write_free to cleanup the writer and release resources 738 */ 739 __LA_DECL struct archive *archive_write_new(void); 740 __LA_DECL int archive_write_set_bytes_per_block(struct archive *, 741 int bytes_per_block); 742 __LA_DECL int archive_write_get_bytes_per_block(struct archive *); 743 /* XXX This is badly misnamed; suggestions appreciated. XXX */ 744 __LA_DECL int archive_write_set_bytes_in_last_block(struct archive *, 745 int bytes_in_last_block); 746 __LA_DECL int archive_write_get_bytes_in_last_block(struct archive *); 747 748 /* The dev/ino of a file that won't be archived. This is used 749 * to avoid recursively adding an archive to itself. */ 750 __LA_DECL int archive_write_set_skip_file(struct archive *, 751 la_int64_t, la_int64_t); 752 753 #if ARCHIVE_VERSION_NUMBER < 4000000 754 __LA_DECL int archive_write_set_compression_bzip2(struct archive *) 755 __LA_DEPRECATED; 756 __LA_DECL int archive_write_set_compression_compress(struct archive *) 757 __LA_DEPRECATED; 758 __LA_DECL int archive_write_set_compression_gzip(struct archive *) 759 __LA_DEPRECATED; 760 __LA_DECL int archive_write_set_compression_lzip(struct archive *) 761 __LA_DEPRECATED; 762 __LA_DECL int archive_write_set_compression_lzma(struct archive *) 763 __LA_DEPRECATED; 764 __LA_DECL int archive_write_set_compression_none(struct archive *) 765 __LA_DEPRECATED; 766 __LA_DECL int archive_write_set_compression_program(struct archive *, 767 const char *cmd) __LA_DEPRECATED; 768 __LA_DECL int archive_write_set_compression_xz(struct archive *) 769 __LA_DEPRECATED; 770 #endif 771 772 /* A convenience function to set the filter based on the code. */ 773 __LA_DECL int archive_write_add_filter(struct archive *, int filter_code); 774 __LA_DECL int archive_write_add_filter_by_name(struct archive *, 775 const char *name); 776 __LA_DECL int archive_write_add_filter_b64encode(struct archive *); 777 __LA_DECL int archive_write_add_filter_bzip2(struct archive *); 778 __LA_DECL int archive_write_add_filter_compress(struct archive *); 779 __LA_DECL int archive_write_add_filter_grzip(struct archive *); 780 __LA_DECL int archive_write_add_filter_gzip(struct archive *); 781 __LA_DECL int archive_write_add_filter_lrzip(struct archive *); 782 __LA_DECL int archive_write_add_filter_lz4(struct archive *); 783 __LA_DECL int archive_write_add_filter_lzip(struct archive *); 784 __LA_DECL int archive_write_add_filter_lzma(struct archive *); 785 __LA_DECL int archive_write_add_filter_lzop(struct archive *); 786 __LA_DECL int archive_write_add_filter_none(struct archive *); 787 __LA_DECL int archive_write_add_filter_program(struct archive *, 788 const char *cmd); 789 __LA_DECL int archive_write_add_filter_uuencode(struct archive *); 790 __LA_DECL int archive_write_add_filter_xz(struct archive *); 791 __LA_DECL int archive_write_add_filter_zstd(struct archive *); 792 793 794 /* A convenience function to set the format based on the code or name. */ 795 __LA_DECL int archive_write_set_format(struct archive *, int format_code); 796 __LA_DECL int archive_write_set_format_by_name(struct archive *, 797 const char *name); 798 /* To minimize link pollution, use one or more of the following. */ 799 __LA_DECL int archive_write_set_format_7zip(struct archive *); 800 __LA_DECL int archive_write_set_format_ar_bsd(struct archive *); 801 __LA_DECL int archive_write_set_format_ar_svr4(struct archive *); 802 __LA_DECL int archive_write_set_format_cpio(struct archive *); 803 __LA_DECL int archive_write_set_format_cpio_newc(struct archive *); 804 __LA_DECL int archive_write_set_format_gnutar(struct archive *); 805 __LA_DECL int archive_write_set_format_iso9660(struct archive *); 806 __LA_DECL int archive_write_set_format_mtree(struct archive *); 807 __LA_DECL int archive_write_set_format_mtree_classic(struct archive *); 808 /* TODO: int archive_write_set_format_old_tar(struct archive *); */ 809 __LA_DECL int archive_write_set_format_pax(struct archive *); 810 __LA_DECL int archive_write_set_format_pax_restricted(struct archive *); 811 __LA_DECL int archive_write_set_format_raw(struct archive *); 812 __LA_DECL int archive_write_set_format_shar(struct archive *); 813 __LA_DECL int archive_write_set_format_shar_dump(struct archive *); 814 __LA_DECL int archive_write_set_format_ustar(struct archive *); 815 __LA_DECL int archive_write_set_format_v7tar(struct archive *); 816 __LA_DECL int archive_write_set_format_warc(struct archive *); 817 __LA_DECL int archive_write_set_format_xar(struct archive *); 818 __LA_DECL int archive_write_set_format_zip(struct archive *); 819 __LA_DECL int archive_write_set_format_filter_by_ext(struct archive *a, const char *filename); 820 __LA_DECL int archive_write_set_format_filter_by_ext_def(struct archive *a, const char *filename, const char * def_ext); 821 __LA_DECL int archive_write_zip_set_compression_deflate(struct archive *); 822 __LA_DECL int archive_write_zip_set_compression_store(struct archive *); 823 /* Deprecated; use archive_write_open2 instead */ 824 __LA_DECL int archive_write_open(struct archive *, void *, 825 archive_open_callback *, archive_write_callback *, 826 archive_close_callback *); 827 __LA_DECL int archive_write_open2(struct archive *, void *, 828 archive_open_callback *, archive_write_callback *, 829 archive_close_callback *, archive_free_callback *); 830 __LA_DECL int archive_write_open_fd(struct archive *, int _fd); 831 __LA_DECL int archive_write_open_filename(struct archive *, const char *_file); 832 __LA_DECL int archive_write_open_filename_w(struct archive *, 833 const wchar_t *_file); 834 /* A deprecated synonym for archive_write_open_filename() */ 835 __LA_DECL int archive_write_open_file(struct archive *, const char *_file) 836 __LA_DEPRECATED; 837 __LA_DECL int archive_write_open_FILE(struct archive *, FILE *); 838 /* _buffSize is the size of the buffer, _used refers to a variable that 839 * will be updated after each write into the buffer. */ 840 __LA_DECL int archive_write_open_memory(struct archive *, 841 void *_buffer, size_t _buffSize, size_t *_used); 842 843 /* 844 * Note that the library will truncate writes beyond the size provided 845 * to archive_write_header or pad if the provided data is short. 846 */ 847 __LA_DECL int archive_write_header(struct archive *, 848 struct archive_entry *); 849 __LA_DECL la_ssize_t archive_write_data(struct archive *, 850 const void *, size_t); 851 852 /* This interface is currently only available for archive_write_disk handles. */ 853 __LA_DECL la_ssize_t archive_write_data_block(struct archive *, 854 const void *, size_t, la_int64_t); 855 856 __LA_DECL int archive_write_finish_entry(struct archive *); 857 __LA_DECL int archive_write_close(struct archive *); 858 /* Marks the archive as FATAL so that a subsequent free() operation 859 * won't try to close() cleanly. Provides a fast abort capability 860 * when the client discovers that things have gone wrong. */ 861 __LA_DECL int archive_write_fail(struct archive *); 862 /* This can fail if the archive wasn't already closed, in which case 863 * archive_write_free() will implicitly call archive_write_close(). */ 864 __LA_DECL int archive_write_free(struct archive *); 865 #if ARCHIVE_VERSION_NUMBER < 4000000 866 /* Synonym for archive_write_free() for backwards compatibility. */ 867 __LA_DECL int archive_write_finish(struct archive *) __LA_DEPRECATED; 868 #endif 869 870 /* 871 * Set write options. 872 */ 873 /* Apply option to the format only. */ 874 __LA_DECL int archive_write_set_format_option(struct archive *_a, 875 const char *m, const char *o, 876 const char *v); 877 /* Apply option to the filter only. */ 878 __LA_DECL int archive_write_set_filter_option(struct archive *_a, 879 const char *m, const char *o, 880 const char *v); 881 /* Apply option to both the format and the filter. */ 882 __LA_DECL int archive_write_set_option(struct archive *_a, 883 const char *m, const char *o, 884 const char *v); 885 /* Apply option string to both the format and the filter. */ 886 __LA_DECL int archive_write_set_options(struct archive *_a, 887 const char *opts); 888 889 /* 890 * Set a encryption passphrase. 891 */ 892 __LA_DECL int archive_write_set_passphrase(struct archive *_a, const char *p); 893 __LA_DECL int archive_write_set_passphrase_callback(struct archive *, 894 void *client_data, archive_passphrase_callback *); 895 896 /*- 897 * ARCHIVE_WRITE_DISK API 898 * 899 * To create objects on disk: 900 * 1) Ask archive_write_disk_new for a new archive_write_disk object. 901 * 2) Set any global properties. In particular, you probably 902 * want to set the options. 903 * 3) For each entry: 904 * - construct an appropriate struct archive_entry structure 905 * - archive_write_header to create the file/dir/etc on disk 906 * - archive_write_data to write the entry data 907 * 4) archive_write_free to cleanup the writer and release resources 908 * 909 * In particular, you can use this in conjunction with archive_read() 910 * to pull entries out of an archive and create them on disk. 911 */ 912 __LA_DECL struct archive *archive_write_disk_new(void); 913 /* This file will not be overwritten. */ 914 __LA_DECL int archive_write_disk_set_skip_file(struct archive *, 915 la_int64_t, la_int64_t); 916 /* Set flags to control how the next item gets created. 917 * This accepts a bitmask of ARCHIVE_EXTRACT_XXX flags defined above. */ 918 __LA_DECL int archive_write_disk_set_options(struct archive *, 919 int flags); 920 /* 921 * The lookup functions are given uname/uid (or gname/gid) pairs and 922 * return a uid (gid) suitable for this system. These are used for 923 * restoring ownership and for setting ACLs. The default functions 924 * are naive, they just return the uid/gid. These are small, so reasonable 925 * for applications that don't need to preserve ownership; they 926 * are probably also appropriate for applications that are doing 927 * same-system backup and restore. 928 */ 929 /* 930 * The "standard" lookup functions use common system calls to lookup 931 * the uname/gname, falling back to the uid/gid if the names can't be 932 * found. They cache lookups and are reasonably fast, but can be very 933 * large, so they are not used unless you ask for them. In 934 * particular, these match the specifications of POSIX "pax" and old 935 * POSIX "tar". 936 */ 937 __LA_DECL int archive_write_disk_set_standard_lookup(struct archive *); 938 /* 939 * If neither the default (naive) nor the standard (big) functions suit 940 * your needs, you can write your own and register them. Be sure to 941 * include a cleanup function if you have allocated private data. 942 */ 943 __LA_DECL int archive_write_disk_set_group_lookup(struct archive *, 944 void * /* private_data */, 945 la_int64_t (*)(void *, const char *, la_int64_t), 946 void (* /* cleanup */)(void *)); 947 __LA_DECL int archive_write_disk_set_user_lookup(struct archive *, 948 void * /* private_data */, 949 la_int64_t (*)(void *, const char *, la_int64_t), 950 void (* /* cleanup */)(void *)); 951 __LA_DECL la_int64_t archive_write_disk_gid(struct archive *, const char *, la_int64_t); 952 __LA_DECL la_int64_t archive_write_disk_uid(struct archive *, const char *, la_int64_t); 953 954 /* 955 * ARCHIVE_READ_DISK API 956 * 957 * This is still evolving and somewhat experimental. 958 */ 959 __LA_DECL struct archive *archive_read_disk_new(void); 960 /* The names for symlink modes here correspond to an old BSD 961 * command-line argument convention: -L, -P, -H */ 962 /* Follow all symlinks. */ 963 __LA_DECL int archive_read_disk_set_symlink_logical(struct archive *); 964 /* Follow no symlinks. */ 965 __LA_DECL int archive_read_disk_set_symlink_physical(struct archive *); 966 /* Follow symlink initially, then not. */ 967 __LA_DECL int archive_read_disk_set_symlink_hybrid(struct archive *); 968 /* TODO: Handle Linux stat32/stat64 ugliness. <sigh> */ 969 __LA_DECL int archive_read_disk_entry_from_file(struct archive *, 970 struct archive_entry *, int /* fd */, const struct stat *); 971 /* Look up gname for gid or uname for uid. */ 972 /* Default implementations are very, very stupid. */ 973 __LA_DECL const char *archive_read_disk_gname(struct archive *, la_int64_t); 974 __LA_DECL const char *archive_read_disk_uname(struct archive *, la_int64_t); 975 /* "Standard" implementation uses getpwuid_r, getgrgid_r and caches the 976 * results for performance. */ 977 __LA_DECL int archive_read_disk_set_standard_lookup(struct archive *); 978 /* You can install your own lookups if you like. */ 979 __LA_DECL int archive_read_disk_set_gname_lookup(struct archive *, 980 void * /* private_data */, 981 const char *(* /* lookup_fn */)(void *, la_int64_t), 982 void (* /* cleanup_fn */)(void *)); 983 __LA_DECL int archive_read_disk_set_uname_lookup(struct archive *, 984 void * /* private_data */, 985 const char *(* /* lookup_fn */)(void *, la_int64_t), 986 void (* /* cleanup_fn */)(void *)); 987 /* Start traversal. */ 988 __LA_DECL int archive_read_disk_open(struct archive *, const char *); 989 __LA_DECL int archive_read_disk_open_w(struct archive *, const wchar_t *); 990 /* 991 * Request that current entry be visited. If you invoke it on every 992 * directory, you'll get a physical traversal. This is ignored if the 993 * current entry isn't a directory or a link to a directory. So, if 994 * you invoke this on every returned path, you'll get a full logical 995 * traversal. 996 */ 997 __LA_DECL int archive_read_disk_descend(struct archive *); 998 __LA_DECL int archive_read_disk_can_descend(struct archive *); 999 __LA_DECL int archive_read_disk_current_filesystem(struct archive *); 1000 __LA_DECL int archive_read_disk_current_filesystem_is_synthetic(struct archive *); 1001 __LA_DECL int archive_read_disk_current_filesystem_is_remote(struct archive *); 1002 /* Request that the access time of the entry visited by traversal be restored. */ 1003 __LA_DECL int archive_read_disk_set_atime_restored(struct archive *); 1004 /* 1005 * Set behavior. The "flags" argument selects optional behavior. 1006 */ 1007 /* Request that the access time of the entry visited by traversal be restored. 1008 * This is the same as archive_read_disk_set_atime_restored. */ 1009 #define ARCHIVE_READDISK_RESTORE_ATIME (0x0001) 1010 /* Default: Do not skip an entry which has nodump flags. */ 1011 #define ARCHIVE_READDISK_HONOR_NODUMP (0x0002) 1012 /* Default: Skip a mac resource fork file whose prefix is "._" because of 1013 * using copyfile. */ 1014 #define ARCHIVE_READDISK_MAC_COPYFILE (0x0004) 1015 /* Default: Traverse mount points. */ 1016 #define ARCHIVE_READDISK_NO_TRAVERSE_MOUNTS (0x0008) 1017 /* Default: Xattrs are read from disk. */ 1018 #define ARCHIVE_READDISK_NO_XATTR (0x0010) 1019 /* Default: ACLs are read from disk. */ 1020 #define ARCHIVE_READDISK_NO_ACL (0x0020) 1021 /* Default: File flags are read from disk. */ 1022 #define ARCHIVE_READDISK_NO_FFLAGS (0x0040) 1023 1024 __LA_DECL int archive_read_disk_set_behavior(struct archive *, 1025 int flags); 1026 1027 /* 1028 * Set archive_match object that will be used in archive_read_disk to 1029 * know whether an entry should be skipped. The callback function 1030 * _excluded_func will be invoked when an entry is skipped by the result 1031 * of archive_match. 1032 */ 1033 __LA_DECL int archive_read_disk_set_matching(struct archive *, 1034 struct archive *_matching, void (*_excluded_func) 1035 (struct archive *, void *, struct archive_entry *), 1036 void *_client_data); 1037 __LA_DECL int archive_read_disk_set_metadata_filter_callback(struct archive *, 1038 int (*_metadata_filter_func)(struct archive *, void *, 1039 struct archive_entry *), void *_client_data); 1040 1041 /* Simplified cleanup interface; 1042 * This calls archive_read_free() or archive_write_free() as needed. */ 1043 __LA_DECL int archive_free(struct archive *); 1044 1045 /* 1046 * Accessor functions to read/set various information in 1047 * the struct archive object: 1048 */ 1049 1050 /* Number of filters in the current filter pipeline. */ 1051 /* Filter #0 is the one closest to the format, -1 is a synonym for the 1052 * last filter, which is always the pseudo-filter that wraps the 1053 * client callbacks. */ 1054 __LA_DECL int archive_filter_count(struct archive *); 1055 __LA_DECL la_int64_t archive_filter_bytes(struct archive *, int); 1056 __LA_DECL int archive_filter_code(struct archive *, int); 1057 __LA_DECL const char * archive_filter_name(struct archive *, int); 1058 1059 #if ARCHIVE_VERSION_NUMBER < 4000000 1060 /* These don't properly handle multiple filters, so are deprecated and 1061 * will eventually be removed. */ 1062 /* As of libarchive 3.0, this is an alias for archive_filter_bytes(a, -1); */ 1063 __LA_DECL la_int64_t archive_position_compressed(struct archive *) 1064 __LA_DEPRECATED; 1065 /* As of libarchive 3.0, this is an alias for archive_filter_bytes(a, 0); */ 1066 __LA_DECL la_int64_t archive_position_uncompressed(struct archive *) 1067 __LA_DEPRECATED; 1068 /* As of libarchive 3.0, this is an alias for archive_filter_name(a, 0); */ 1069 __LA_DECL const char *archive_compression_name(struct archive *) 1070 __LA_DEPRECATED; 1071 /* As of libarchive 3.0, this is an alias for archive_filter_code(a, 0); */ 1072 __LA_DECL int archive_compression(struct archive *) 1073 __LA_DEPRECATED; 1074 #endif 1075 1076 __LA_DECL int archive_errno(struct archive *); 1077 __LA_DECL const char *archive_error_string(struct archive *); 1078 __LA_DECL const char *archive_format_name(struct archive *); 1079 __LA_DECL int archive_format(struct archive *); 1080 __LA_DECL void archive_clear_error(struct archive *); 1081 __LA_DECL void archive_set_error(struct archive *, int _err, 1082 const char *fmt, ...) __LA_PRINTF(3, 4); 1083 __LA_DECL void archive_copy_error(struct archive *dest, 1084 struct archive *src); 1085 __LA_DECL int archive_file_count(struct archive *); 1086 1087 /* 1088 * ARCHIVE_MATCH API 1089 */ 1090 __LA_DECL struct archive *archive_match_new(void); 1091 __LA_DECL int archive_match_free(struct archive *); 1092 1093 /* 1094 * Test if archive_entry is excluded. 1095 * This is a convenience function. This is the same as calling all 1096 * archive_match_path_excluded, archive_match_time_excluded 1097 * and archive_match_owner_excluded. 1098 */ 1099 __LA_DECL int archive_match_excluded(struct archive *, 1100 struct archive_entry *); 1101 1102 /* 1103 * Test if pathname is excluded. The conditions are set by following functions. 1104 */ 1105 __LA_DECL int archive_match_path_excluded(struct archive *, 1106 struct archive_entry *); 1107 /* Control recursive inclusion of directory content when directory is included. Default on. */ 1108 __LA_DECL int archive_match_set_inclusion_recursion(struct archive *, int); 1109 /* Add exclusion pathname pattern. */ 1110 __LA_DECL int archive_match_exclude_pattern(struct archive *, const char *); 1111 __LA_DECL int archive_match_exclude_pattern_w(struct archive *, 1112 const wchar_t *); 1113 /* Add exclusion pathname pattern from file. */ 1114 __LA_DECL int archive_match_exclude_pattern_from_file(struct archive *, 1115 const char *, int _nullSeparator); 1116 __LA_DECL int archive_match_exclude_pattern_from_file_w(struct archive *, 1117 const wchar_t *, int _nullSeparator); 1118 /* Add inclusion pathname pattern. */ 1119 __LA_DECL int archive_match_include_pattern(struct archive *, const char *); 1120 __LA_DECL int archive_match_include_pattern_w(struct archive *, 1121 const wchar_t *); 1122 /* Add inclusion pathname pattern from file. */ 1123 __LA_DECL int archive_match_include_pattern_from_file(struct archive *, 1124 const char *, int _nullSeparator); 1125 __LA_DECL int archive_match_include_pattern_from_file_w(struct archive *, 1126 const wchar_t *, int _nullSeparator); 1127 /* 1128 * How to get statistic information for inclusion patterns. 1129 */ 1130 /* Return the amount number of unmatched inclusion patterns. */ 1131 __LA_DECL int archive_match_path_unmatched_inclusions(struct archive *); 1132 /* Return the pattern of unmatched inclusion with ARCHIVE_OK. 1133 * Return ARCHIVE_EOF if there is no inclusion pattern. */ 1134 __LA_DECL int archive_match_path_unmatched_inclusions_next( 1135 struct archive *, const char **); 1136 __LA_DECL int archive_match_path_unmatched_inclusions_next_w( 1137 struct archive *, const wchar_t **); 1138 1139 /* 1140 * Test if a file is excluded by its time stamp. 1141 * The conditions are set by following functions. 1142 */ 1143 __LA_DECL int archive_match_time_excluded(struct archive *, 1144 struct archive_entry *); 1145 1146 /* 1147 * Flags to tell a matching type of time stamps. These are used for 1148 * following functions. 1149 */ 1150 /* Time flag: mtime to be tested. */ 1151 #define ARCHIVE_MATCH_MTIME (0x0100) 1152 /* Time flag: ctime to be tested. */ 1153 #define ARCHIVE_MATCH_CTIME (0x0200) 1154 /* Comparison flag: Match the time if it is newer than. */ 1155 #define ARCHIVE_MATCH_NEWER (0x0001) 1156 /* Comparison flag: Match the time if it is older than. */ 1157 #define ARCHIVE_MATCH_OLDER (0x0002) 1158 /* Comparison flag: Match the time if it is equal to. */ 1159 #define ARCHIVE_MATCH_EQUAL (0x0010) 1160 /* Set inclusion time. */ 1161 __LA_DECL int archive_match_include_time(struct archive *, int _flag, 1162 time_t _sec, long _nsec); 1163 /* Set inclusion time by a date string. */ 1164 __LA_DECL int archive_match_include_date(struct archive *, int _flag, 1165 const char *_datestr); 1166 __LA_DECL int archive_match_include_date_w(struct archive *, int _flag, 1167 const wchar_t *_datestr); 1168 /* Set inclusion time by a particular file. */ 1169 __LA_DECL int archive_match_include_file_time(struct archive *, 1170 int _flag, const char *_pathname); 1171 __LA_DECL int archive_match_include_file_time_w(struct archive *, 1172 int _flag, const wchar_t *_pathname); 1173 /* Add exclusion entry. */ 1174 __LA_DECL int archive_match_exclude_entry(struct archive *, 1175 int _flag, struct archive_entry *); 1176 1177 /* 1178 * Test if a file is excluded by its uid ,gid, uname or gname. 1179 * The conditions are set by following functions. 1180 */ 1181 __LA_DECL int archive_match_owner_excluded(struct archive *, 1182 struct archive_entry *); 1183 /* Add inclusion uid, gid, uname and gname. */ 1184 __LA_DECL int archive_match_include_uid(struct archive *, la_int64_t); 1185 __LA_DECL int archive_match_include_gid(struct archive *, la_int64_t); 1186 __LA_DECL int archive_match_include_uname(struct archive *, const char *); 1187 __LA_DECL int archive_match_include_uname_w(struct archive *, 1188 const wchar_t *); 1189 __LA_DECL int archive_match_include_gname(struct archive *, const char *); 1190 __LA_DECL int archive_match_include_gname_w(struct archive *, 1191 const wchar_t *); 1192 1193 /* Utility functions */ 1194 /* Convenience function to sort a NULL terminated list of strings */ 1195 __LA_DECL int archive_utility_string_sort(char **); 1196 1197 #ifdef __cplusplus 1198 } 1199 #endif 1200 1201 /* These are meaningless outside of this header. */ 1202 #undef __LA_DECL 1203 1204 #endif /* !ARCHIVE_H_INCLUDED */ 1205