1 /*- 2 * Copyright (c) 2003-2008 Tim Kientzle 3 * Copyright (c) 2016 Martin Matuska 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 #ifndef ARCHIVE_ENTRY_H_INCLUDED 28 #define ARCHIVE_ENTRY_H_INCLUDED 29 30 /* Note: Compiler will complain if this does not match archive.h! */ 31 #define ARCHIVE_VERSION_NUMBER 3007004 32 33 /* 34 * Note: archive_entry.h is for use outside of libarchive; the 35 * configuration headers (config.h, archive_platform.h, etc.) are 36 * purely internal. Do NOT use HAVE_XXX configuration macros to 37 * control the behavior of this header! If you must conditionalize, 38 * use predefined compiler and/or platform macros. 39 */ 40 41 #include <sys/types.h> 42 #include <stddef.h> /* for wchar_t */ 43 #include <stdint.h> 44 #include <time.h> 45 46 #if defined(_WIN32) && !defined(__CYGWIN__) 47 #include <windows.h> 48 #endif 49 50 /* Get a suitable 64-bit integer type. */ 51 #if !defined(__LA_INT64_T_DEFINED) 52 # if ARCHIVE_VERSION_NUMBER < 4000000 53 #define __LA_INT64_T la_int64_t 54 # endif 55 #define __LA_INT64_T_DEFINED 56 # if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__WATCOMC__) 57 typedef __int64 la_int64_t; 58 # else 59 #include <unistd.h> 60 # if defined(_SCO_DS) || defined(__osf__) 61 typedef long long la_int64_t; 62 # else 63 typedef int64_t la_int64_t; 64 # endif 65 # endif 66 #endif 67 68 /* The la_ssize_t should match the type used in 'struct stat' */ 69 #if !defined(__LA_SSIZE_T_DEFINED) 70 /* Older code relied on the __LA_SSIZE_T macro; after 4.0 we'll switch to the typedef exclusively. */ 71 # if ARCHIVE_VERSION_NUMBER < 4000000 72 #define __LA_SSIZE_T la_ssize_t 73 # endif 74 #define __LA_SSIZE_T_DEFINED 75 # if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__WATCOMC__) 76 # if defined(_SSIZE_T_DEFINED) || defined(_SSIZE_T_) 77 typedef ssize_t la_ssize_t; 78 # elif defined(_WIN64) 79 typedef __int64 la_ssize_t; 80 # else 81 typedef long la_ssize_t; 82 # endif 83 # else 84 # include <unistd.h> /* ssize_t */ 85 typedef ssize_t la_ssize_t; 86 # endif 87 #endif 88 89 /* Get a suitable definition for mode_t */ 90 #if ARCHIVE_VERSION_NUMBER >= 3999000 91 /* Switch to plain 'int' for libarchive 4.0. It's less broken than 'mode_t' */ 92 # define __LA_MODE_T int 93 #elif defined(_WIN32) && !defined(__CYGWIN__) && !defined(__BORLANDC__) && !defined(__WATCOMC__) 94 # define __LA_MODE_T unsigned short 95 #else 96 # define __LA_MODE_T mode_t 97 #endif 98 99 /* Large file support for Android */ 100 #if defined(__LIBARCHIVE_BUILD) && defined(__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 #elif defined __LIBARCHIVE_ENABLE_VISIBILITY 124 # define __LA_DECL __attribute__((visibility("default"))) 125 #else 126 /* Static libraries on all platforms and shared libraries on non-Windows. */ 127 # define __LA_DECL 128 #endif 129 130 #if defined(__GNUC__) && __GNUC__ >= 3 && __GNUC_MINOR__ >= 1 131 # define __LA_DEPRECATED __attribute__((deprecated)) 132 #else 133 # define __LA_DEPRECATED 134 #endif 135 136 #ifdef __cplusplus 137 extern "C" { 138 #endif 139 140 /* 141 * Description of an archive entry. 142 * 143 * You can think of this as "struct stat" with some text fields added in. 144 * 145 * TODO: Add "comment", "charset", and possibly other entries that are 146 * supported by "pax interchange" format. However, GNU, ustar, cpio, 147 * and other variants don't support these features, so they're not an 148 * excruciatingly high priority right now. 149 * 150 * TODO: "pax interchange" format allows essentially arbitrary 151 * key/value attributes to be attached to any entry. Supporting 152 * such extensions may make this library useful for special 153 * applications (e.g., a package manager could attach special 154 * package-management attributes to each entry). 155 */ 156 struct archive; 157 struct archive_entry; 158 159 /* 160 * File-type constants. These are returned from archive_entry_filetype() 161 * and passed to archive_entry_set_filetype(). 162 * 163 * These values match S_XXX defines on every platform I've checked, 164 * including Windows, AIX, Linux, Solaris, and BSD. They're 165 * (re)defined here because platforms generally don't define the ones 166 * they don't support. For example, Windows doesn't define S_IFLNK or 167 * S_IFBLK. Instead of having a mass of conditional logic and system 168 * checks to define any S_XXX values that aren't supported locally, 169 * I've just defined a new set of such constants so that 170 * libarchive-based applications can manipulate and identify archive 171 * entries properly even if the hosting platform can't store them on 172 * disk. 173 * 174 * These values are also used directly within some portable formats, 175 * such as cpio. If you find a platform that varies from these, the 176 * correct solution is to leave these alone and translate from these 177 * portable values to platform-native values when entries are read from 178 * or written to disk. 179 */ 180 /* 181 * In libarchive 4.0, we can drop the casts here. 182 * They're needed to work around Borland C's broken mode_t. 183 */ 184 #define AE_IFMT ((__LA_MODE_T)0170000) 185 #define AE_IFREG ((__LA_MODE_T)0100000) 186 #define AE_IFLNK ((__LA_MODE_T)0120000) 187 #define AE_IFSOCK ((__LA_MODE_T)0140000) 188 #define AE_IFCHR ((__LA_MODE_T)0020000) 189 #define AE_IFBLK ((__LA_MODE_T)0060000) 190 #define AE_IFDIR ((__LA_MODE_T)0040000) 191 #define AE_IFIFO ((__LA_MODE_T)0010000) 192 193 /* 194 * Symlink types 195 */ 196 #define AE_SYMLINK_TYPE_UNDEFINED 0 197 #define AE_SYMLINK_TYPE_FILE 1 198 #define AE_SYMLINK_TYPE_DIRECTORY 2 199 200 /* 201 * Basic object manipulation 202 */ 203 204 __LA_DECL struct archive_entry *archive_entry_clear(struct archive_entry *); 205 /* The 'clone' function does a deep copy; all of the strings are copied too. */ 206 __LA_DECL struct archive_entry *archive_entry_clone(struct archive_entry *); 207 __LA_DECL void archive_entry_free(struct archive_entry *); 208 __LA_DECL struct archive_entry *archive_entry_new(void); 209 210 /* 211 * This form of archive_entry_new2() will pull character-set 212 * conversion information from the specified archive handle. The 213 * older archive_entry_new(void) form is equivalent to calling 214 * archive_entry_new2(NULL) and will result in the use of an internal 215 * default character-set conversion. 216 */ 217 __LA_DECL struct archive_entry *archive_entry_new2(struct archive *); 218 219 /* 220 * Retrieve fields from an archive_entry. 221 * 222 * There are a number of implicit conversions among these fields. For 223 * example, if a regular string field is set and you read the _w wide 224 * character field, the entry will implicitly convert narrow-to-wide 225 * using the current locale. Similarly, dev values are automatically 226 * updated when you write devmajor or devminor and vice versa. 227 * 228 * In addition, fields can be "set" or "unset." Unset string fields 229 * return NULL, non-string fields have _is_set() functions to test 230 * whether they've been set. You can "unset" a string field by 231 * assigning NULL; non-string fields have _unset() functions to 232 * unset them. 233 * 234 * Note: There is one ambiguity in the above; string fields will 235 * also return NULL when implicit character set conversions fail. 236 * This is usually what you want. 237 */ 238 __LA_DECL time_t archive_entry_atime(struct archive_entry *); 239 __LA_DECL long archive_entry_atime_nsec(struct archive_entry *); 240 __LA_DECL int archive_entry_atime_is_set(struct archive_entry *); 241 __LA_DECL time_t archive_entry_birthtime(struct archive_entry *); 242 __LA_DECL long archive_entry_birthtime_nsec(struct archive_entry *); 243 __LA_DECL int archive_entry_birthtime_is_set(struct archive_entry *); 244 __LA_DECL time_t archive_entry_ctime(struct archive_entry *); 245 __LA_DECL long archive_entry_ctime_nsec(struct archive_entry *); 246 __LA_DECL int archive_entry_ctime_is_set(struct archive_entry *); 247 __LA_DECL dev_t archive_entry_dev(struct archive_entry *); 248 __LA_DECL int archive_entry_dev_is_set(struct archive_entry *); 249 __LA_DECL dev_t archive_entry_devmajor(struct archive_entry *); 250 __LA_DECL dev_t archive_entry_devminor(struct archive_entry *); 251 __LA_DECL __LA_MODE_T archive_entry_filetype(struct archive_entry *); 252 __LA_DECL int archive_entry_filetype_is_set(struct archive_entry *); 253 __LA_DECL void archive_entry_fflags(struct archive_entry *, 254 unsigned long * /* set */, 255 unsigned long * /* clear */); 256 __LA_DECL const char *archive_entry_fflags_text(struct archive_entry *); 257 __LA_DECL la_int64_t archive_entry_gid(struct archive_entry *); 258 __LA_DECL int archive_entry_gid_is_set(struct archive_entry *); 259 __LA_DECL const char *archive_entry_gname(struct archive_entry *); 260 __LA_DECL const char *archive_entry_gname_utf8(struct archive_entry *); 261 __LA_DECL const wchar_t *archive_entry_gname_w(struct archive_entry *); 262 __LA_DECL const char *archive_entry_hardlink(struct archive_entry *); 263 __LA_DECL const char *archive_entry_hardlink_utf8(struct archive_entry *); 264 __LA_DECL const wchar_t *archive_entry_hardlink_w(struct archive_entry *); 265 __LA_DECL la_int64_t archive_entry_ino(struct archive_entry *); 266 __LA_DECL la_int64_t archive_entry_ino64(struct archive_entry *); 267 __LA_DECL int archive_entry_ino_is_set(struct archive_entry *); 268 __LA_DECL __LA_MODE_T archive_entry_mode(struct archive_entry *); 269 __LA_DECL time_t archive_entry_mtime(struct archive_entry *); 270 __LA_DECL long archive_entry_mtime_nsec(struct archive_entry *); 271 __LA_DECL int archive_entry_mtime_is_set(struct archive_entry *); 272 __LA_DECL unsigned int archive_entry_nlink(struct archive_entry *); 273 __LA_DECL const char *archive_entry_pathname(struct archive_entry *); 274 __LA_DECL const char *archive_entry_pathname_utf8(struct archive_entry *); 275 __LA_DECL const wchar_t *archive_entry_pathname_w(struct archive_entry *); 276 __LA_DECL __LA_MODE_T archive_entry_perm(struct archive_entry *); 277 __LA_DECL int archive_entry_perm_is_set(struct archive_entry *); 278 __LA_DECL dev_t archive_entry_rdev(struct archive_entry *); 279 __LA_DECL dev_t archive_entry_rdevmajor(struct archive_entry *); 280 __LA_DECL dev_t archive_entry_rdevminor(struct archive_entry *); 281 __LA_DECL const char *archive_entry_sourcepath(struct archive_entry *); 282 __LA_DECL const wchar_t *archive_entry_sourcepath_w(struct archive_entry *); 283 __LA_DECL la_int64_t archive_entry_size(struct archive_entry *); 284 __LA_DECL int archive_entry_size_is_set(struct archive_entry *); 285 __LA_DECL const char *archive_entry_strmode(struct archive_entry *); 286 __LA_DECL const char *archive_entry_symlink(struct archive_entry *); 287 __LA_DECL const char *archive_entry_symlink_utf8(struct archive_entry *); 288 __LA_DECL int archive_entry_symlink_type(struct archive_entry *); 289 __LA_DECL const wchar_t *archive_entry_symlink_w(struct archive_entry *); 290 __LA_DECL la_int64_t archive_entry_uid(struct archive_entry *); 291 __LA_DECL int archive_entry_uid_is_set(struct archive_entry *); 292 __LA_DECL const char *archive_entry_uname(struct archive_entry *); 293 __LA_DECL const char *archive_entry_uname_utf8(struct archive_entry *); 294 __LA_DECL const wchar_t *archive_entry_uname_w(struct archive_entry *); 295 __LA_DECL int archive_entry_is_data_encrypted(struct archive_entry *); 296 __LA_DECL int archive_entry_is_metadata_encrypted(struct archive_entry *); 297 __LA_DECL int archive_entry_is_encrypted(struct archive_entry *); 298 299 /* 300 * Set fields in an archive_entry. 301 * 302 * Note: Before libarchive 2.4, there were 'set' and 'copy' versions 303 * of the string setters. 'copy' copied the actual string, 'set' just 304 * stored the pointer. In libarchive 2.4 and later, strings are 305 * always copied. 306 */ 307 308 __LA_DECL void archive_entry_set_atime(struct archive_entry *, time_t, long); 309 __LA_DECL void archive_entry_unset_atime(struct archive_entry *); 310 #if defined(_WIN32) && !defined(__CYGWIN__) 311 __LA_DECL void archive_entry_copy_bhfi(struct archive_entry *, BY_HANDLE_FILE_INFORMATION *); 312 #endif 313 __LA_DECL void archive_entry_set_birthtime(struct archive_entry *, time_t, long); 314 __LA_DECL void archive_entry_unset_birthtime(struct archive_entry *); 315 __LA_DECL void archive_entry_set_ctime(struct archive_entry *, time_t, long); 316 __LA_DECL void archive_entry_unset_ctime(struct archive_entry *); 317 __LA_DECL void archive_entry_set_dev(struct archive_entry *, dev_t); 318 __LA_DECL void archive_entry_set_devmajor(struct archive_entry *, dev_t); 319 __LA_DECL void archive_entry_set_devminor(struct archive_entry *, dev_t); 320 __LA_DECL void archive_entry_set_filetype(struct archive_entry *, unsigned int); 321 __LA_DECL void archive_entry_set_fflags(struct archive_entry *, 322 unsigned long /* set */, unsigned long /* clear */); 323 /* Returns pointer to start of first invalid token, or NULL if none. */ 324 /* Note that all recognized tokens are processed, regardless. */ 325 __LA_DECL const char *archive_entry_copy_fflags_text(struct archive_entry *, 326 const char *); 327 __LA_DECL const wchar_t *archive_entry_copy_fflags_text_w(struct archive_entry *, 328 const wchar_t *); 329 __LA_DECL void archive_entry_set_gid(struct archive_entry *, la_int64_t); 330 __LA_DECL void archive_entry_set_gname(struct archive_entry *, const char *); 331 __LA_DECL void archive_entry_set_gname_utf8(struct archive_entry *, const char *); 332 __LA_DECL void archive_entry_copy_gname(struct archive_entry *, const char *); 333 __LA_DECL void archive_entry_copy_gname_w(struct archive_entry *, const wchar_t *); 334 __LA_DECL int archive_entry_update_gname_utf8(struct archive_entry *, const char *); 335 __LA_DECL void archive_entry_set_hardlink(struct archive_entry *, const char *); 336 __LA_DECL void archive_entry_set_hardlink_utf8(struct archive_entry *, const char *); 337 __LA_DECL void archive_entry_copy_hardlink(struct archive_entry *, const char *); 338 __LA_DECL void archive_entry_copy_hardlink_w(struct archive_entry *, const wchar_t *); 339 __LA_DECL int archive_entry_update_hardlink_utf8(struct archive_entry *, const char *); 340 __LA_DECL void archive_entry_set_ino(struct archive_entry *, la_int64_t); 341 __LA_DECL void archive_entry_set_ino64(struct archive_entry *, la_int64_t); 342 __LA_DECL void archive_entry_set_link(struct archive_entry *, const char *); 343 __LA_DECL void archive_entry_set_link_utf8(struct archive_entry *, const char *); 344 __LA_DECL void archive_entry_copy_link(struct archive_entry *, const char *); 345 __LA_DECL void archive_entry_copy_link_w(struct archive_entry *, const wchar_t *); 346 __LA_DECL int archive_entry_update_link_utf8(struct archive_entry *, const char *); 347 __LA_DECL void archive_entry_set_mode(struct archive_entry *, __LA_MODE_T); 348 __LA_DECL void archive_entry_set_mtime(struct archive_entry *, time_t, long); 349 __LA_DECL void archive_entry_unset_mtime(struct archive_entry *); 350 __LA_DECL void archive_entry_set_nlink(struct archive_entry *, unsigned int); 351 __LA_DECL void archive_entry_set_pathname(struct archive_entry *, const char *); 352 __LA_DECL void archive_entry_set_pathname_utf8(struct archive_entry *, const char *); 353 __LA_DECL void archive_entry_copy_pathname(struct archive_entry *, const char *); 354 __LA_DECL void archive_entry_copy_pathname_w(struct archive_entry *, const wchar_t *); 355 __LA_DECL int archive_entry_update_pathname_utf8(struct archive_entry *, const char *); 356 __LA_DECL void archive_entry_set_perm(struct archive_entry *, __LA_MODE_T); 357 __LA_DECL void archive_entry_set_rdev(struct archive_entry *, dev_t); 358 __LA_DECL void archive_entry_set_rdevmajor(struct archive_entry *, dev_t); 359 __LA_DECL void archive_entry_set_rdevminor(struct archive_entry *, dev_t); 360 __LA_DECL void archive_entry_set_size(struct archive_entry *, la_int64_t); 361 __LA_DECL void archive_entry_unset_size(struct archive_entry *); 362 __LA_DECL void archive_entry_copy_sourcepath(struct archive_entry *, const char *); 363 __LA_DECL void archive_entry_copy_sourcepath_w(struct archive_entry *, const wchar_t *); 364 __LA_DECL void archive_entry_set_symlink(struct archive_entry *, const char *); 365 __LA_DECL void archive_entry_set_symlink_type(struct archive_entry *, int); 366 __LA_DECL void archive_entry_set_symlink_utf8(struct archive_entry *, const char *); 367 __LA_DECL void archive_entry_copy_symlink(struct archive_entry *, const char *); 368 __LA_DECL void archive_entry_copy_symlink_w(struct archive_entry *, const wchar_t *); 369 __LA_DECL int archive_entry_update_symlink_utf8(struct archive_entry *, const char *); 370 __LA_DECL void archive_entry_set_uid(struct archive_entry *, la_int64_t); 371 __LA_DECL void archive_entry_set_uname(struct archive_entry *, const char *); 372 __LA_DECL void archive_entry_set_uname_utf8(struct archive_entry *, const char *); 373 __LA_DECL void archive_entry_copy_uname(struct archive_entry *, const char *); 374 __LA_DECL void archive_entry_copy_uname_w(struct archive_entry *, const wchar_t *); 375 __LA_DECL int archive_entry_update_uname_utf8(struct archive_entry *, const char *); 376 __LA_DECL void archive_entry_set_is_data_encrypted(struct archive_entry *, char is_encrypted); 377 __LA_DECL void archive_entry_set_is_metadata_encrypted(struct archive_entry *, char is_encrypted); 378 /* 379 * Routines to bulk copy fields to/from a platform-native "struct 380 * stat." Libarchive used to just store a struct stat inside of each 381 * archive_entry object, but this created issues when trying to 382 * manipulate archives on systems different than the ones they were 383 * created on. 384 * 385 * TODO: On Linux and other LFS systems, provide both stat32 and 386 * stat64 versions of these functions and all of the macro glue so 387 * that archive_entry_stat is magically defined to 388 * archive_entry_stat32 or archive_entry_stat64 as appropriate. 389 */ 390 __LA_DECL const struct stat *archive_entry_stat(struct archive_entry *); 391 __LA_DECL void archive_entry_copy_stat(struct archive_entry *, const struct stat *); 392 393 /* 394 * Storage for Mac OS-specific AppleDouble metadata information. 395 * Apple-format tar files store a separate binary blob containing 396 * encoded metadata with ACL, extended attributes, etc. 397 * This provides a place to store that blob. 398 */ 399 400 __LA_DECL const void * archive_entry_mac_metadata(struct archive_entry *, size_t *); 401 __LA_DECL void archive_entry_copy_mac_metadata(struct archive_entry *, const void *, size_t); 402 403 /* 404 * Digest routine. This is used to query the raw hex digest for the 405 * given entry. The type of digest is provided as an argument. 406 */ 407 #define ARCHIVE_ENTRY_DIGEST_MD5 0x00000001 408 #define ARCHIVE_ENTRY_DIGEST_RMD160 0x00000002 409 #define ARCHIVE_ENTRY_DIGEST_SHA1 0x00000003 410 #define ARCHIVE_ENTRY_DIGEST_SHA256 0x00000004 411 #define ARCHIVE_ENTRY_DIGEST_SHA384 0x00000005 412 #define ARCHIVE_ENTRY_DIGEST_SHA512 0x00000006 413 414 __LA_DECL const unsigned char * archive_entry_digest(struct archive_entry *, int /* type */); 415 416 /* 417 * ACL routines. This used to simply store and return text-format ACL 418 * strings, but that proved insufficient for a number of reasons: 419 * = clients need control over uname/uid and gname/gid mappings 420 * = there are many different ACL text formats 421 * = would like to be able to read/convert archives containing ACLs 422 * on platforms that lack ACL libraries 423 * 424 * This last point, in particular, forces me to implement a reasonably 425 * complete set of ACL support routines. 426 */ 427 428 /* 429 * Permission bits. 430 */ 431 #define ARCHIVE_ENTRY_ACL_EXECUTE 0x00000001 432 #define ARCHIVE_ENTRY_ACL_WRITE 0x00000002 433 #define ARCHIVE_ENTRY_ACL_READ 0x00000004 434 #define ARCHIVE_ENTRY_ACL_READ_DATA 0x00000008 435 #define ARCHIVE_ENTRY_ACL_LIST_DIRECTORY 0x00000008 436 #define ARCHIVE_ENTRY_ACL_WRITE_DATA 0x00000010 437 #define ARCHIVE_ENTRY_ACL_ADD_FILE 0x00000010 438 #define ARCHIVE_ENTRY_ACL_APPEND_DATA 0x00000020 439 #define ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY 0x00000020 440 #define ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS 0x00000040 441 #define ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS 0x00000080 442 #define ARCHIVE_ENTRY_ACL_DELETE_CHILD 0x00000100 443 #define ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES 0x00000200 444 #define ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES 0x00000400 445 #define ARCHIVE_ENTRY_ACL_DELETE 0x00000800 446 #define ARCHIVE_ENTRY_ACL_READ_ACL 0x00001000 447 #define ARCHIVE_ENTRY_ACL_WRITE_ACL 0x00002000 448 #define ARCHIVE_ENTRY_ACL_WRITE_OWNER 0x00004000 449 #define ARCHIVE_ENTRY_ACL_SYNCHRONIZE 0x00008000 450 451 #define ARCHIVE_ENTRY_ACL_PERMS_POSIX1E \ 452 (ARCHIVE_ENTRY_ACL_EXECUTE \ 453 | ARCHIVE_ENTRY_ACL_WRITE \ 454 | ARCHIVE_ENTRY_ACL_READ) 455 456 #define ARCHIVE_ENTRY_ACL_PERMS_NFS4 \ 457 (ARCHIVE_ENTRY_ACL_EXECUTE \ 458 | ARCHIVE_ENTRY_ACL_READ_DATA \ 459 | ARCHIVE_ENTRY_ACL_LIST_DIRECTORY \ 460 | ARCHIVE_ENTRY_ACL_WRITE_DATA \ 461 | ARCHIVE_ENTRY_ACL_ADD_FILE \ 462 | ARCHIVE_ENTRY_ACL_APPEND_DATA \ 463 | ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY \ 464 | ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS \ 465 | ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS \ 466 | ARCHIVE_ENTRY_ACL_DELETE_CHILD \ 467 | ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES \ 468 | ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES \ 469 | ARCHIVE_ENTRY_ACL_DELETE \ 470 | ARCHIVE_ENTRY_ACL_READ_ACL \ 471 | ARCHIVE_ENTRY_ACL_WRITE_ACL \ 472 | ARCHIVE_ENTRY_ACL_WRITE_OWNER \ 473 | ARCHIVE_ENTRY_ACL_SYNCHRONIZE) 474 475 /* 476 * Inheritance values (NFS4 ACLs only); included in permset. 477 */ 478 #define ARCHIVE_ENTRY_ACL_ENTRY_INHERITED 0x01000000 479 #define ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT 0x02000000 480 #define ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT 0x04000000 481 #define ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT 0x08000000 482 #define ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY 0x10000000 483 #define ARCHIVE_ENTRY_ACL_ENTRY_SUCCESSFUL_ACCESS 0x20000000 484 #define ARCHIVE_ENTRY_ACL_ENTRY_FAILED_ACCESS 0x40000000 485 486 #define ARCHIVE_ENTRY_ACL_INHERITANCE_NFS4 \ 487 (ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT \ 488 | ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT \ 489 | ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT \ 490 | ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY \ 491 | ARCHIVE_ENTRY_ACL_ENTRY_SUCCESSFUL_ACCESS \ 492 | ARCHIVE_ENTRY_ACL_ENTRY_FAILED_ACCESS \ 493 | ARCHIVE_ENTRY_ACL_ENTRY_INHERITED) 494 495 /* We need to be able to specify combinations of these. */ 496 #define ARCHIVE_ENTRY_ACL_TYPE_ACCESS 0x00000100 /* POSIX.1e only */ 497 #define ARCHIVE_ENTRY_ACL_TYPE_DEFAULT 0x00000200 /* POSIX.1e only */ 498 #define ARCHIVE_ENTRY_ACL_TYPE_ALLOW 0x00000400 /* NFS4 only */ 499 #define ARCHIVE_ENTRY_ACL_TYPE_DENY 0x00000800 /* NFS4 only */ 500 #define ARCHIVE_ENTRY_ACL_TYPE_AUDIT 0x00001000 /* NFS4 only */ 501 #define ARCHIVE_ENTRY_ACL_TYPE_ALARM 0x00002000 /* NFS4 only */ 502 #define ARCHIVE_ENTRY_ACL_TYPE_POSIX1E (ARCHIVE_ENTRY_ACL_TYPE_ACCESS \ 503 | ARCHIVE_ENTRY_ACL_TYPE_DEFAULT) 504 #define ARCHIVE_ENTRY_ACL_TYPE_NFS4 (ARCHIVE_ENTRY_ACL_TYPE_ALLOW \ 505 | ARCHIVE_ENTRY_ACL_TYPE_DENY \ 506 | ARCHIVE_ENTRY_ACL_TYPE_AUDIT \ 507 | ARCHIVE_ENTRY_ACL_TYPE_ALARM) 508 509 /* Tag values mimic POSIX.1e */ 510 #define ARCHIVE_ENTRY_ACL_USER 10001 /* Specified user. */ 511 #define ARCHIVE_ENTRY_ACL_USER_OBJ 10002 /* User who owns the file. */ 512 #define ARCHIVE_ENTRY_ACL_GROUP 10003 /* Specified group. */ 513 #define ARCHIVE_ENTRY_ACL_GROUP_OBJ 10004 /* Group who owns the file. */ 514 #define ARCHIVE_ENTRY_ACL_MASK 10005 /* Modify group access (POSIX.1e only) */ 515 #define ARCHIVE_ENTRY_ACL_OTHER 10006 /* Public (POSIX.1e only) */ 516 #define ARCHIVE_ENTRY_ACL_EVERYONE 10107 /* Everyone (NFS4 only) */ 517 518 /* 519 * Set the ACL by clearing it and adding entries one at a time. 520 * Unlike the POSIX.1e ACL routines, you must specify the type 521 * (access/default) for each entry. Internally, the ACL data is just 522 * a soup of entries. API calls here allow you to retrieve just the 523 * entries of interest. This design (which goes against the spirit of 524 * POSIX.1e) is useful for handling archive formats that combine 525 * default and access information in a single ACL list. 526 */ 527 __LA_DECL void archive_entry_acl_clear(struct archive_entry *); 528 __LA_DECL int archive_entry_acl_add_entry(struct archive_entry *, 529 int /* type */, int /* permset */, int /* tag */, 530 int /* qual */, const char * /* name */); 531 __LA_DECL int archive_entry_acl_add_entry_w(struct archive_entry *, 532 int /* type */, int /* permset */, int /* tag */, 533 int /* qual */, const wchar_t * /* name */); 534 535 /* 536 * To retrieve the ACL, first "reset", then repeatedly ask for the 537 * "next" entry. The want_type parameter allows you to request only 538 * certain types of entries. 539 */ 540 __LA_DECL int archive_entry_acl_reset(struct archive_entry *, int /* want_type */); 541 __LA_DECL int archive_entry_acl_next(struct archive_entry *, int /* want_type */, 542 int * /* type */, int * /* permset */, int * /* tag */, 543 int * /* qual */, const char ** /* name */); 544 545 /* 546 * Construct a text-format ACL. The flags argument is a bitmask that 547 * can include any of the following: 548 * 549 * Flags only for archive entries with POSIX.1e ACL: 550 * ARCHIVE_ENTRY_ACL_TYPE_ACCESS - Include POSIX.1e "access" entries. 551 * ARCHIVE_ENTRY_ACL_TYPE_DEFAULT - Include POSIX.1e "default" entries. 552 * ARCHIVE_ENTRY_ACL_STYLE_MARK_DEFAULT - Include "default:" before each 553 * default ACL entry. 554 * ARCHIVE_ENTRY_ACL_STYLE_SOLARIS - Output only one colon after "other" and 555 * "mask" entries. 556 * 557 * Flags only for archive entries with NFSv4 ACL: 558 * ARCHIVE_ENTRY_ACL_STYLE_COMPACT - Do not output the minus character for 559 * unset permissions and flags in NFSv4 ACL permission and flag fields 560 * 561 * Flags for for archive entries with POSIX.1e ACL or NFSv4 ACL: 562 * ARCHIVE_ENTRY_ACL_STYLE_EXTRA_ID - Include extra numeric ID field in 563 * each ACL entry. 564 * ARCHIVE_ENTRY_ACL_STYLE_SEPARATOR_COMMA - Separate entries with comma 565 * instead of newline. 566 */ 567 #define ARCHIVE_ENTRY_ACL_STYLE_EXTRA_ID 0x00000001 568 #define ARCHIVE_ENTRY_ACL_STYLE_MARK_DEFAULT 0x00000002 569 #define ARCHIVE_ENTRY_ACL_STYLE_SOLARIS 0x00000004 570 #define ARCHIVE_ENTRY_ACL_STYLE_SEPARATOR_COMMA 0x00000008 571 #define ARCHIVE_ENTRY_ACL_STYLE_COMPACT 0x00000010 572 573 __LA_DECL wchar_t *archive_entry_acl_to_text_w(struct archive_entry *, 574 la_ssize_t * /* len */, int /* flags */); 575 __LA_DECL char *archive_entry_acl_to_text(struct archive_entry *, 576 la_ssize_t * /* len */, int /* flags */); 577 __LA_DECL int archive_entry_acl_from_text_w(struct archive_entry *, 578 const wchar_t * /* wtext */, int /* type */); 579 __LA_DECL int archive_entry_acl_from_text(struct archive_entry *, 580 const char * /* text */, int /* type */); 581 582 /* Deprecated constants */ 583 #define OLD_ARCHIVE_ENTRY_ACL_STYLE_EXTRA_ID 1024 584 #define OLD_ARCHIVE_ENTRY_ACL_STYLE_MARK_DEFAULT 2048 585 586 /* Deprecated functions */ 587 __LA_DECL const wchar_t *archive_entry_acl_text_w(struct archive_entry *, 588 int /* flags */) __LA_DEPRECATED; 589 __LA_DECL const char *archive_entry_acl_text(struct archive_entry *, 590 int /* flags */) __LA_DEPRECATED; 591 592 /* Return bitmask of ACL types in an archive entry */ 593 __LA_DECL int archive_entry_acl_types(struct archive_entry *); 594 595 /* Return a count of entries matching 'want_type' */ 596 __LA_DECL int archive_entry_acl_count(struct archive_entry *, int /* want_type */); 597 598 /* Return an opaque ACL object. */ 599 /* There's not yet anything clients can actually do with this... */ 600 struct archive_acl; 601 __LA_DECL struct archive_acl *archive_entry_acl(struct archive_entry *); 602 603 /* 604 * extended attributes 605 */ 606 607 __LA_DECL void archive_entry_xattr_clear(struct archive_entry *); 608 __LA_DECL void archive_entry_xattr_add_entry(struct archive_entry *, 609 const char * /* name */, const void * /* value */, 610 size_t /* size */); 611 612 /* 613 * To retrieve the xattr list, first "reset", then repeatedly ask for the 614 * "next" entry. 615 */ 616 617 __LA_DECL int archive_entry_xattr_count(struct archive_entry *); 618 __LA_DECL int archive_entry_xattr_reset(struct archive_entry *); 619 __LA_DECL int archive_entry_xattr_next(struct archive_entry *, 620 const char ** /* name */, const void ** /* value */, size_t *); 621 622 /* 623 * sparse 624 */ 625 626 __LA_DECL void archive_entry_sparse_clear(struct archive_entry *); 627 __LA_DECL void archive_entry_sparse_add_entry(struct archive_entry *, 628 la_int64_t /* offset */, la_int64_t /* length */); 629 630 /* 631 * To retrieve the xattr list, first "reset", then repeatedly ask for the 632 * "next" entry. 633 */ 634 635 __LA_DECL int archive_entry_sparse_count(struct archive_entry *); 636 __LA_DECL int archive_entry_sparse_reset(struct archive_entry *); 637 __LA_DECL int archive_entry_sparse_next(struct archive_entry *, 638 la_int64_t * /* offset */, la_int64_t * /* length */); 639 640 /* 641 * Utility to match up hardlinks. 642 * 643 * The 'struct archive_entry_linkresolver' is a cache of archive entries 644 * for files with multiple links. Here's how to use it: 645 * 1. Create a lookup object with archive_entry_linkresolver_new() 646 * 2. Tell it the archive format you're using. 647 * 3. Hand each archive_entry to archive_entry_linkify(). 648 * That function will return 0, 1, or 2 entries that should 649 * be written. 650 * 4. Call archive_entry_linkify(resolver, NULL) until 651 * no more entries are returned. 652 * 5. Call archive_entry_linkresolver_free(resolver) to free resources. 653 * 654 * The entries returned have their hardlink and size fields updated 655 * appropriately. If an entry is passed in that does not refer to 656 * a file with multiple links, it is returned unchanged. The intention 657 * is that you should be able to simply filter all entries through 658 * this machine. 659 * 660 * To make things more efficient, be sure that each entry has a valid 661 * nlinks value. The hardlink cache uses this to track when all links 662 * have been found. If the nlinks value is zero, it will keep every 663 * name in the cache indefinitely, which can use a lot of memory. 664 * 665 * Note that archive_entry_size() is reset to zero if the file 666 * body should not be written to the archive. Pay attention! 667 */ 668 struct archive_entry_linkresolver; 669 670 /* 671 * There are three different strategies for marking hardlinks. 672 * The descriptions below name them after the best-known 673 * formats that rely on each strategy: 674 * 675 * "Old cpio" is the simplest, it always returns any entry unmodified. 676 * As far as I know, only cpio formats use this. Old cpio archives 677 * store every link with the full body; the onus is on the dearchiver 678 * to detect and properly link the files as they are restored. 679 * "tar" is also pretty simple; it caches a copy the first time it sees 680 * any link. Subsequent appearances are modified to be hardlink 681 * references to the first one without any body. Used by all tar 682 * formats, although the newest tar formats permit the "old cpio" strategy 683 * as well. This strategy is very simple for the dearchiver, 684 * and reasonably straightforward for the archiver. 685 * "new cpio" is trickier. It stores the body only with the last 686 * occurrence. The complication is that we might not 687 * see every link to a particular file in a single session, so 688 * there's no easy way to know when we've seen the last occurrence. 689 * The solution here is to queue one link until we see the next. 690 * At the end of the session, you can enumerate any remaining 691 * entries by calling archive_entry_linkify(NULL) and store those 692 * bodies. If you have a file with three links l1, l2, and l3, 693 * you'll get the following behavior if you see all three links: 694 * linkify(l1) => NULL (the resolver stores l1 internally) 695 * linkify(l2) => l1 (resolver stores l2, you write l1) 696 * linkify(l3) => l2, l3 (all links seen, you can write both). 697 * If you only see l1 and l2, you'll get this behavior: 698 * linkify(l1) => NULL 699 * linkify(l2) => l1 700 * linkify(NULL) => l2 (at end, you retrieve remaining links) 701 * As the name suggests, this strategy is used by newer cpio variants. 702 * It's noticeably more complex for the archiver, slightly more complex 703 * for the dearchiver than the tar strategy, but makes it straightforward 704 * to restore a file using any link by simply continuing to scan until 705 * you see a link that is stored with a body. In contrast, the tar 706 * strategy requires you to rescan the archive from the beginning to 707 * correctly extract an arbitrary link. 708 */ 709 710 __LA_DECL struct archive_entry_linkresolver *archive_entry_linkresolver_new(void); 711 __LA_DECL void archive_entry_linkresolver_set_strategy( 712 struct archive_entry_linkresolver *, int /* format_code */); 713 __LA_DECL void archive_entry_linkresolver_free(struct archive_entry_linkresolver *); 714 __LA_DECL void archive_entry_linkify(struct archive_entry_linkresolver *, 715 struct archive_entry **, struct archive_entry **); 716 __LA_DECL struct archive_entry *archive_entry_partial_links( 717 struct archive_entry_linkresolver *res, unsigned int *links); 718 #ifdef __cplusplus 719 } 720 #endif 721 722 /* This is meaningless outside of this header. */ 723 #undef __LA_DECL 724 725 #endif /* !ARCHIVE_ENTRY_H_INCLUDED */ 726