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Diffstat (limited to 'lib/libarchive/archive_entry.h')
| -rw-r--r-- | lib/libarchive/archive_entry.h | 524 |
1 files changed, 0 insertions, 524 deletions
diff --git a/lib/libarchive/archive_entry.h b/lib/libarchive/archive_entry.h deleted file mode 100644 index 7ed2dde..0000000 --- a/lib/libarchive/archive_entry.h +++ /dev/null @@ -1,524 +0,0 @@ -/*- - * Copyright (c) 2003-2008 Tim Kientzle - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#ifndef ARCHIVE_ENTRY_H_INCLUDED -#define ARCHIVE_ENTRY_H_INCLUDED - -/* - * Note: archive_entry.h is for use outside of libarchive; the - * configuration headers (config.h, archive_platform.h, etc.) are - * purely internal. Do NOT use HAVE_XXX configuration macros to - * control the behavior of this header! If you must conditionalize, - * use predefined compiler and/or platform macros. - */ - -#include <sys/types.h> -#include <stddef.h> /* for wchar_t */ -#include <time.h> - -#if defined(_WIN32) && !defined(__CYGWIN__) -#include <windows.h> -#endif - -/* Get appropriate definitions of standard POSIX-style types. */ -/* These should match the types used in 'struct stat' */ -#if defined(_WIN32) && !defined(__CYGWIN__) -#define __LA_INT64_T __int64 -# if defined(__BORLANDC__) -# define __LA_UID_T uid_t -# define __LA_GID_T gid_t -# define __LA_DEV_T dev_t -# define __LA_MODE_T mode_t -# else -# define __LA_UID_T short -# define __LA_GID_T short -# define __LA_DEV_T unsigned int -# define __LA_MODE_T unsigned short -# endif -#else -#include <unistd.h> -#define __LA_INT64_T int64_t -#define __LA_UID_T uid_t -#define __LA_GID_T gid_t -#define __LA_DEV_T dev_t -#define __LA_MODE_T mode_t -#endif - -/* - * XXX Is this defined for all Windows compilers? If so, in what - * header? It would be nice to remove the __LA_INO_T indirection and - * just use plain ino_t everywhere. Likewise for the other types just - * above. - */ -#define __LA_INO_T ino_t - - -/* - * On Windows, define LIBARCHIVE_STATIC if you're building or using a - * .lib. The default here assumes you're building a DLL. Only - * libarchive source should ever define __LIBARCHIVE_BUILD. - */ -#if ((defined __WIN32__) || (defined _WIN32) || defined(__CYGWIN__)) && (!defined LIBARCHIVE_STATIC) -# ifdef __LIBARCHIVE_BUILD -# ifdef __GNUC__ -# define __LA_DECL __attribute__((dllexport)) extern -# else -# define __LA_DECL __declspec(dllexport) -# endif -# else -# ifdef __GNUC__ -# define __LA_DECL __attribute__((dllimport)) extern -# else -# define __LA_DECL __declspec(dllimport) -# endif -# endif -#else -/* Static libraries on all platforms and shared libraries on non-Windows. */ -# define __LA_DECL -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Description of an archive entry. - * - * You can think of this as "struct stat" with some text fields added in. - * - * TODO: Add "comment", "charset", and possibly other entries that are - * supported by "pax interchange" format. However, GNU, ustar, cpio, - * and other variants don't support these features, so they're not an - * excruciatingly high priority right now. - * - * TODO: "pax interchange" format allows essentially arbitrary - * key/value attributes to be attached to any entry. Supporting - * such extensions may make this library useful for special - * applications (e.g., a package manager could attach special - * package-management attributes to each entry). - */ -struct archive_entry; - -/* - * File-type constants. These are returned from archive_entry_filetype() - * and passed to archive_entry_set_filetype(). - * - * These values match S_XXX defines on every platform I've checked, - * including Windows, AIX, Linux, Solaris, and BSD. They're - * (re)defined here because platforms generally don't define the ones - * they don't support. For example, Windows doesn't define S_IFLNK or - * S_IFBLK. Instead of having a mass of conditional logic and system - * checks to define any S_XXX values that aren't supported locally, - * I've just defined a new set of such constants so that - * libarchive-based applications can manipulate and identify archive - * entries properly even if the hosting platform can't store them on - * disk. - * - * These values are also used directly within some portable formats, - * such as cpio. If you find a platform that varies from these, the - * correct solution is to leave these alone and translate from these - * portable values to platform-native values when entries are read from - * or written to disk. - */ -#define AE_IFMT 0170000 -#define AE_IFREG 0100000 -#define AE_IFLNK 0120000 -#define AE_IFSOCK 0140000 -#define AE_IFCHR 0020000 -#define AE_IFBLK 0060000 -#define AE_IFDIR 0040000 -#define AE_IFIFO 0010000 - -/* - * Basic object manipulation - */ - -__LA_DECL struct archive_entry *archive_entry_clear(struct archive_entry *); -/* The 'clone' function does a deep copy; all of the strings are copied too. */ -__LA_DECL struct archive_entry *archive_entry_clone(struct archive_entry *); -__LA_DECL void archive_entry_free(struct archive_entry *); -__LA_DECL struct archive_entry *archive_entry_new(void); - -/* - * Retrieve fields from an archive_entry. - * - * There are a number of implicit conversions among these fields. For - * example, if a regular string field is set and you read the _w wide - * character field, the entry will implicitly convert narrow-to-wide - * using the current locale. Similarly, dev values are automatically - * updated when you write devmajor or devminor and vice versa. - * - * In addition, fields can be "set" or "unset." Unset string fields - * return NULL, non-string fields have _is_set() functions to test - * whether they've been set. You can "unset" a string field by - * assigning NULL; non-string fields have _unset() functions to - * unset them. - * - * Note: There is one ambiguity in the above; string fields will - * also return NULL when implicit character set conversions fail. - * This is usually what you want. - */ -__LA_DECL time_t archive_entry_atime(struct archive_entry *); -__LA_DECL long archive_entry_atime_nsec(struct archive_entry *); -__LA_DECL int archive_entry_atime_is_set(struct archive_entry *); -__LA_DECL time_t archive_entry_birthtime(struct archive_entry *); -__LA_DECL long archive_entry_birthtime_nsec(struct archive_entry *); -__LA_DECL int archive_entry_birthtime_is_set(struct archive_entry *); -__LA_DECL time_t archive_entry_ctime(struct archive_entry *); -__LA_DECL long archive_entry_ctime_nsec(struct archive_entry *); -__LA_DECL int archive_entry_ctime_is_set(struct archive_entry *); -__LA_DECL dev_t archive_entry_dev(struct archive_entry *); -__LA_DECL dev_t archive_entry_devmajor(struct archive_entry *); -__LA_DECL dev_t archive_entry_devminor(struct archive_entry *); -__LA_DECL __LA_MODE_T archive_entry_filetype(struct archive_entry *); -__LA_DECL void archive_entry_fflags(struct archive_entry *, - unsigned long * /* set */, - unsigned long * /* clear */); -__LA_DECL const char *archive_entry_fflags_text(struct archive_entry *); -__LA_DECL __LA_GID_T archive_entry_gid(struct archive_entry *); -__LA_DECL const char *archive_entry_gname(struct archive_entry *); -__LA_DECL const wchar_t *archive_entry_gname_w(struct archive_entry *); -__LA_DECL const char *archive_entry_hardlink(struct archive_entry *); -__LA_DECL const wchar_t *archive_entry_hardlink_w(struct archive_entry *); -__LA_DECL __LA_INO_T archive_entry_ino(struct archive_entry *); -__LA_DECL __LA_INT64_T archive_entry_ino64(struct archive_entry *); -__LA_DECL __LA_MODE_T archive_entry_mode(struct archive_entry *); -__LA_DECL time_t archive_entry_mtime(struct archive_entry *); -__LA_DECL long archive_entry_mtime_nsec(struct archive_entry *); -__LA_DECL int archive_entry_mtime_is_set(struct archive_entry *); -__LA_DECL unsigned int archive_entry_nlink(struct archive_entry *); -__LA_DECL const char *archive_entry_pathname(struct archive_entry *); -__LA_DECL const wchar_t *archive_entry_pathname_w(struct archive_entry *); -__LA_DECL dev_t archive_entry_rdev(struct archive_entry *); -__LA_DECL dev_t archive_entry_rdevmajor(struct archive_entry *); -__LA_DECL dev_t archive_entry_rdevminor(struct archive_entry *); -__LA_DECL const char *archive_entry_sourcepath(struct archive_entry *); -__LA_DECL __LA_INT64_T archive_entry_size(struct archive_entry *); -__LA_DECL int archive_entry_size_is_set(struct archive_entry *); -__LA_DECL const char *archive_entry_strmode(struct archive_entry *); -__LA_DECL const char *archive_entry_symlink(struct archive_entry *); -__LA_DECL const wchar_t *archive_entry_symlink_w(struct archive_entry *); -__LA_DECL __LA_UID_T archive_entry_uid(struct archive_entry *); -__LA_DECL const char *archive_entry_uname(struct archive_entry *); -__LA_DECL const wchar_t *archive_entry_uname_w(struct archive_entry *); - -/* - * Set fields in an archive_entry. - * - * Note that string 'set' functions do not copy the string, only the pointer. - * In contrast, 'copy' functions do copy the object pointed to. - * - * Note: As of libarchive 2.4, 'set' functions do copy the string and - * are therefore exact synonyms for the 'copy' versions. The 'copy' - * names will be retired in libarchive 3.0. - */ - -__LA_DECL void archive_entry_set_atime(struct archive_entry *, time_t, long); -__LA_DECL void archive_entry_unset_atime(struct archive_entry *); -#if defined(_WIN32) && !defined(__CYGWIN__) -__LA_DECL void archive_entry_copy_bhfi(struct archive_entry *, - BY_HANDLE_FILE_INFORMATION *); -#endif -__LA_DECL void archive_entry_set_birthtime(struct archive_entry *, time_t, long); -__LA_DECL void archive_entry_unset_birthtime(struct archive_entry *); -__LA_DECL void archive_entry_set_ctime(struct archive_entry *, time_t, long); -__LA_DECL void archive_entry_unset_ctime(struct archive_entry *); -__LA_DECL void archive_entry_set_dev(struct archive_entry *, dev_t); -__LA_DECL void archive_entry_set_devmajor(struct archive_entry *, dev_t); -__LA_DECL void archive_entry_set_devminor(struct archive_entry *, dev_t); -__LA_DECL void archive_entry_set_filetype(struct archive_entry *, unsigned int); -__LA_DECL void archive_entry_set_fflags(struct archive_entry *, - unsigned long /* set */, unsigned long /* clear */); -/* Returns pointer to start of first invalid token, or NULL if none. */ -/* Note that all recognized tokens are processed, regardless. */ -__LA_DECL const char *archive_entry_copy_fflags_text(struct archive_entry *, - const char *); -__LA_DECL const wchar_t *archive_entry_copy_fflags_text_w(struct archive_entry *, - const wchar_t *); -__LA_DECL void archive_entry_set_gid(struct archive_entry *, __LA_GID_T); -__LA_DECL void archive_entry_set_gname(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_gname(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_gname_w(struct archive_entry *, const wchar_t *); -__LA_DECL int archive_entry_update_gname_utf8(struct archive_entry *, const char *); -__LA_DECL void archive_entry_set_hardlink(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_hardlink(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_hardlink_w(struct archive_entry *, const wchar_t *); -__LA_DECL int archive_entry_update_hardlink_utf8(struct archive_entry *, const char *); -#if ARCHIVE_VERSION_NUMBER >= 3000000 -/* Starting with libarchive 3.0, this will be synonym for ino64. */ -__LA_DECL void archive_entry_set_ino(struct archive_entry *, __LA_INT64_T); -#else -__LA_DECL void archive_entry_set_ino(struct archive_entry *, unsigned long); -#endif -__LA_DECL void archive_entry_set_ino64(struct archive_entry *, __LA_INT64_T); -__LA_DECL void archive_entry_set_link(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_link(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_link_w(struct archive_entry *, const wchar_t *); -__LA_DECL int archive_entry_update_link_utf8(struct archive_entry *, const char *); -__LA_DECL void archive_entry_set_mode(struct archive_entry *, __LA_MODE_T); -__LA_DECL void archive_entry_set_mtime(struct archive_entry *, time_t, long); -__LA_DECL void archive_entry_unset_mtime(struct archive_entry *); -__LA_DECL void archive_entry_set_nlink(struct archive_entry *, unsigned int); -__LA_DECL void archive_entry_set_pathname(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_pathname(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_pathname_w(struct archive_entry *, const wchar_t *); -__LA_DECL int archive_entry_update_pathname_utf8(struct archive_entry *, const char *); -__LA_DECL void archive_entry_set_perm(struct archive_entry *, __LA_MODE_T); -__LA_DECL void archive_entry_set_rdev(struct archive_entry *, dev_t); -__LA_DECL void archive_entry_set_rdevmajor(struct archive_entry *, dev_t); -__LA_DECL void archive_entry_set_rdevminor(struct archive_entry *, dev_t); -__LA_DECL void archive_entry_set_size(struct archive_entry *, __LA_INT64_T); -__LA_DECL void archive_entry_unset_size(struct archive_entry *); -__LA_DECL void archive_entry_copy_sourcepath(struct archive_entry *, const char *); -__LA_DECL void archive_entry_set_symlink(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_symlink(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_symlink_w(struct archive_entry *, const wchar_t *); -__LA_DECL int archive_entry_update_symlink_utf8(struct archive_entry *, const char *); -__LA_DECL void archive_entry_set_uid(struct archive_entry *, __LA_UID_T); -__LA_DECL void archive_entry_set_uname(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_uname(struct archive_entry *, const char *); -__LA_DECL void archive_entry_copy_uname_w(struct archive_entry *, const wchar_t *); -__LA_DECL int archive_entry_update_uname_utf8(struct archive_entry *, const char *); -/* - * Routines to bulk copy fields to/from a platform-native "struct - * stat." Libarchive used to just store a struct stat inside of each - * archive_entry object, but this created issues when trying to - * manipulate archives on systems different than the ones they were - * created on. - * - * TODO: On Linux, provide both stat32 and stat64 versions of these functions. - */ -__LA_DECL const struct stat *archive_entry_stat(struct archive_entry *); -__LA_DECL void archive_entry_copy_stat(struct archive_entry *, const struct stat *); - - -/* - * ACL routines. This used to simply store and return text-format ACL - * strings, but that proved insufficient for a number of reasons: - * = clients need control over uname/uid and gname/gid mappings - * = there are many different ACL text formats - * = would like to be able to read/convert archives containing ACLs - * on platforms that lack ACL libraries - * - * This last point, in particular, forces me to implement a reasonably - * complete set of ACL support routines. - * - * TODO: Extend this to support NFSv4/NTFS permissions. That should - * allow full ACL support on Mac OS, in particular, which uses - * POSIX.1e-style interfaces to manipulate NFSv4/NTFS permissions. - */ - -/* - * Permission bits mimic POSIX.1e. Note that I've not followed POSIX.1e's - * "permset"/"perm" abstract type nonsense. A permset is just a simple - * bitmap, following long-standing Unix tradition. - */ -#define ARCHIVE_ENTRY_ACL_EXECUTE 1 -#define ARCHIVE_ENTRY_ACL_WRITE 2 -#define ARCHIVE_ENTRY_ACL_READ 4 - -/* We need to be able to specify either or both of these. */ -#define ARCHIVE_ENTRY_ACL_TYPE_ACCESS 256 -#define ARCHIVE_ENTRY_ACL_TYPE_DEFAULT 512 - -/* Tag values mimic POSIX.1e */ -#define ARCHIVE_ENTRY_ACL_USER 10001 /* Specified user. */ -#define ARCHIVE_ENTRY_ACL_USER_OBJ 10002 /* User who owns the file. */ -#define ARCHIVE_ENTRY_ACL_GROUP 10003 /* Specified group. */ -#define ARCHIVE_ENTRY_ACL_GROUP_OBJ 10004 /* Group who owns the file. */ -#define ARCHIVE_ENTRY_ACL_MASK 10005 /* Modify group access. */ -#define ARCHIVE_ENTRY_ACL_OTHER 10006 /* Public. */ - -/* - * Set the ACL by clearing it and adding entries one at a time. - * Unlike the POSIX.1e ACL routines, you must specify the type - * (access/default) for each entry. Internally, the ACL data is just - * a soup of entries. API calls here allow you to retrieve just the - * entries of interest. This design (which goes against the spirit of - * POSIX.1e) is useful for handling archive formats that combine - * default and access information in a single ACL list. - */ -__LA_DECL void archive_entry_acl_clear(struct archive_entry *); -__LA_DECL void archive_entry_acl_add_entry(struct archive_entry *, - int /* type */, int /* permset */, int /* tag */, - int /* qual */, const char * /* name */); -__LA_DECL void archive_entry_acl_add_entry_w(struct archive_entry *, - int /* type */, int /* permset */, int /* tag */, - int /* qual */, const wchar_t * /* name */); - -/* - * To retrieve the ACL, first "reset", then repeatedly ask for the - * "next" entry. The want_type parameter allows you to request only - * access entries or only default entries. - */ -__LA_DECL int archive_entry_acl_reset(struct archive_entry *, int /* want_type */); -__LA_DECL int archive_entry_acl_next(struct archive_entry *, int /* want_type */, - int * /* type */, int * /* permset */, int * /* tag */, - int * /* qual */, const char ** /* name */); -__LA_DECL int archive_entry_acl_next_w(struct archive_entry *, int /* want_type */, - int * /* type */, int * /* permset */, int * /* tag */, - int * /* qual */, const wchar_t ** /* name */); - -/* - * Construct a text-format ACL. The flags argument is a bitmask that - * can include any of the following: - * - * ARCHIVE_ENTRY_ACL_TYPE_ACCESS - Include access entries. - * ARCHIVE_ENTRY_ACL_TYPE_DEFAULT - Include default entries. - * ARCHIVE_ENTRY_ACL_STYLE_EXTRA_ID - Include extra numeric ID field in - * each ACL entry. (As used by 'star'.) - * ARCHIVE_ENTRY_ACL_STYLE_MARK_DEFAULT - Include "default:" before each - * default ACL entry. - */ -#define ARCHIVE_ENTRY_ACL_STYLE_EXTRA_ID 1024 -#define ARCHIVE_ENTRY_ACL_STYLE_MARK_DEFAULT 2048 -__LA_DECL const wchar_t *archive_entry_acl_text_w(struct archive_entry *, - int /* flags */); - -/* Return a count of entries matching 'want_type' */ -__LA_DECL int archive_entry_acl_count(struct archive_entry *, int /* want_type */); - -/* - * Private ACL parser. This is private because it handles some - * very weird formats that clients should not be messing with. - * Clients should only deal with their platform-native formats. - * Because of the need to support many formats cleanly, new arguments - * are likely to get added on a regular basis. Clients who try to use - * this interface are likely to be surprised when it changes. - * - * You were warned! - * - * TODO: Move this declaration out of the public header and into - * a private header. Warnings above are silly. - */ -__LA_DECL int __archive_entry_acl_parse_w(struct archive_entry *, - const wchar_t *, int /* type */); - -/* - * extended attributes - */ - -__LA_DECL void archive_entry_xattr_clear(struct archive_entry *); -__LA_DECL void archive_entry_xattr_add_entry(struct archive_entry *, - const char * /* name */, const void * /* value */, - size_t /* size */); - -/* - * To retrieve the xattr list, first "reset", then repeatedly ask for the - * "next" entry. - */ - -__LA_DECL int archive_entry_xattr_count(struct archive_entry *); -__LA_DECL int archive_entry_xattr_reset(struct archive_entry *); -__LA_DECL int archive_entry_xattr_next(struct archive_entry *, - const char ** /* name */, const void ** /* value */, size_t *); - -/* - * Utility to match up hardlinks. - * - * The 'struct archive_entry_linkresolver' is a cache of archive entries - * for files with multiple links. Here's how to use it: - * 1. Create a lookup object with archive_entry_linkresolver_new() - * 2. Tell it the archive format you're using. - * 3. Hand each archive_entry to archive_entry_linkify(). - * That function will return 0, 1, or 2 entries that should - * be written. - * 4. Call archive_entry_linkify(resolver, NULL) until - * no more entries are returned. - * 5. Call archive_entry_link_resolver_free(resolver) to free resources. - * - * The entries returned have their hardlink and size fields updated - * appropriately. If an entry is passed in that does not refer to - * a file with multiple links, it is returned unchanged. The intention - * is that you should be able to simply filter all entries through - * this machine. - * - * To make things more efficient, be sure that each entry has a valid - * nlinks value. The hardlink cache uses this to track when all links - * have been found. If the nlinks value is zero, it will keep every - * name in the cache indefinitely, which can use a lot of memory. - * - * Note that archive_entry_size() is reset to zero if the file - * body should not be written to the archive. Pay attention! - */ -struct archive_entry_linkresolver; - -/* - * There are three different strategies for marking hardlinks. - * The descriptions below name them after the best-known - * formats that rely on each strategy: - * - * "Old cpio" is the simplest, it always returns any entry unmodified. - * As far as I know, only cpio formats use this. Old cpio archives - * store every link with the full body; the onus is on the dearchiver - * to detect and properly link the files as they are restored. - * "tar" is also pretty simple; it caches a copy the first time it sees - * any link. Subsequent appearances are modified to be hardlink - * references to the first one without any body. Used by all tar - * formats, although the newest tar formats permit the "old cpio" strategy - * as well. This strategy is very simple for the dearchiver, - * and reasonably straightforward for the archiver. - * "new cpio" is trickier. It stores the body only with the last - * occurrence. The complication is that we might not - * see every link to a particular file in a single session, so - * there's no easy way to know when we've seen the last occurrence. - * The solution here is to queue one link until we see the next. - * At the end of the session, you can enumerate any remaining - * entries by calling archive_entry_linkify(NULL) and store those - * bodies. If you have a file with three links l1, l2, and l3, - * you'll get the following behavior if you see all three links: - * linkify(l1) => NULL (the resolver stores l1 internally) - * linkify(l2) => l1 (resolver stores l2, you write l1) - * linkify(l3) => l2, l3 (all links seen, you can write both). - * If you only see l1 and l2, you'll get this behavior: - * linkify(l1) => NULL - * linkify(l2) => l1 - * linkify(NULL) => l2 (at end, you retrieve remaining links) - * As the name suggests, this strategy is used by newer cpio variants. - * It's noticably more complex for the archiver, slightly more complex - * for the dearchiver than the tar strategy, but makes it straightforward - * to restore a file using any link by simply continuing to scan until - * you see a link that is stored with a body. In contrast, the tar - * strategy requires you to rescan the archive from the beginning to - * correctly extract an arbitrary link. - */ - -__LA_DECL struct archive_entry_linkresolver *archive_entry_linkresolver_new(void); -__LA_DECL void archive_entry_linkresolver_set_strategy( - struct archive_entry_linkresolver *, int /* format_code */); -__LA_DECL void archive_entry_linkresolver_free(struct archive_entry_linkresolver *); -__LA_DECL void archive_entry_linkify(struct archive_entry_linkresolver *, - struct archive_entry **, struct archive_entry **); - -#ifdef __cplusplus -} -#endif - -/* This is meaningless outside of this header. */ -#undef __LA_DECL - -#endif /* !ARCHIVE_ENTRY_H_INCLUDED */ |
