2 * Copyright (c) 2003-2007 Tim Kientzle
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
28 #ifndef ARCHIVE_ENTRY_H_INCLUDED
29 #define ARCHIVE_ENTRY_H_INCLUDED
31 #include <stddef.h> /* for wchar_t */
40 * Description of an archive entry.
42 * Basically, a "struct stat" with a few text fields added in.
44 * TODO: Add "comment", "charset", and possibly other entries that are
45 * supported by "pax interchange" format. However, GNU, ustar, cpio,
46 * and other variants don't support these features, so they're not an
47 * excruciatingly high priority right now.
49 * TODO: "pax interchange" format allows essentially arbitrary
50 * key/value attributes to be attached to any entry. Supporting
51 * such extensions may make this library useful for special
52 * applications (e.g., a package manager could attach special
53 * package-management attributes to each entry).
58 * Basic object manipulation
61 struct archive_entry *archive_entry_clear(struct archive_entry *);
62 /* The 'clone' function does a deep copy; all of the strings are copied too. */
63 struct archive_entry *archive_entry_clone(struct archive_entry *);
64 void archive_entry_free(struct archive_entry *);
65 struct archive_entry *archive_entry_new(void);
68 * Retrieve fields from an archive_entry.
71 time_t archive_entry_atime(struct archive_entry *);
72 long archive_entry_atime_nsec(struct archive_entry *);
73 time_t archive_entry_ctime(struct archive_entry *);
74 long archive_entry_ctime_nsec(struct archive_entry *);
75 dev_t archive_entry_dev(struct archive_entry *);
76 void archive_entry_fflags(struct archive_entry *,
77 unsigned long *set, unsigned long *clear);
78 const char *archive_entry_fflags_text(struct archive_entry *);
79 gid_t archive_entry_gid(struct archive_entry *);
80 const char *archive_entry_gname(struct archive_entry *);
81 const wchar_t *archive_entry_gname_w(struct archive_entry *);
82 const char *archive_entry_hardlink(struct archive_entry *);
83 const wchar_t *archive_entry_hardlink_w(struct archive_entry *);
84 ino_t archive_entry_ino(struct archive_entry *);
85 mode_t archive_entry_mode(struct archive_entry *);
86 time_t archive_entry_mtime(struct archive_entry *);
87 long archive_entry_mtime_nsec(struct archive_entry *);
88 const char *archive_entry_pathname(struct archive_entry *);
89 const wchar_t *archive_entry_pathname_w(struct archive_entry *);
90 dev_t archive_entry_rdev(struct archive_entry *);
91 dev_t archive_entry_rdevmajor(struct archive_entry *);
92 dev_t archive_entry_rdevminor(struct archive_entry *);
93 int64_t archive_entry_size(struct archive_entry *);
94 const struct stat *archive_entry_stat(struct archive_entry *);
95 const char *archive_entry_symlink(struct archive_entry *);
96 const wchar_t *archive_entry_symlink_w(struct archive_entry *);
97 uid_t archive_entry_uid(struct archive_entry *);
98 const char *archive_entry_uname(struct archive_entry *);
99 const wchar_t *archive_entry_uname_w(struct archive_entry *);
102 * Set fields in an archive_entry.
104 * Note that string 'set' functions do not copy the string, only the pointer.
105 * In contrast, 'copy' functions do copy the object pointed to.
108 void archive_entry_copy_stat(struct archive_entry *, const struct stat *);
109 void archive_entry_set_atime(struct archive_entry *, time_t, long);
110 void archive_entry_set_ctime(struct archive_entry *, time_t, long);
111 void archive_entry_set_fflags(struct archive_entry *,
112 unsigned long set, unsigned long clear);
113 /* Returns pointer to start of first invalid token, or NULL if none. */
114 /* Note that all recognized tokens are processed, regardless. */
115 const wchar_t *archive_entry_copy_fflags_text_w(struct archive_entry *,
117 void archive_entry_set_gid(struct archive_entry *, gid_t);
118 void archive_entry_set_gname(struct archive_entry *, const char *);
119 void archive_entry_copy_gname_w(struct archive_entry *, const wchar_t *);
120 void archive_entry_set_hardlink(struct archive_entry *, const char *);
121 void archive_entry_copy_hardlink(struct archive_entry *, const char *);
122 void archive_entry_copy_hardlink_w(struct archive_entry *, const wchar_t *);
123 void archive_entry_set_link(struct archive_entry *, const char *);
124 void archive_entry_set_mode(struct archive_entry *, mode_t);
125 void archive_entry_set_mtime(struct archive_entry *, time_t, long);
126 void archive_entry_set_pathname(struct archive_entry *, const char *);
127 void archive_entry_copy_pathname(struct archive_entry *, const char *);
128 void archive_entry_copy_pathname_w(struct archive_entry *, const wchar_t *);
129 void archive_entry_set_rdevmajor(struct archive_entry *, dev_t);
130 void archive_entry_set_rdevminor(struct archive_entry *, dev_t);
131 void archive_entry_set_size(struct archive_entry *, int64_t);
132 void archive_entry_set_symlink(struct archive_entry *, const char *);
133 void archive_entry_copy_symlink_w(struct archive_entry *, const wchar_t *);
134 void archive_entry_set_uid(struct archive_entry *, uid_t);
135 void archive_entry_set_uname(struct archive_entry *, const char *);
136 void archive_entry_copy_uname_w(struct archive_entry *, const wchar_t *);
139 * ACL routines. This used to simply store and return text-format ACL
140 * strings, but that proved insufficient for a number of reasons:
141 * = clients need control over uname/uid and gname/gid mappings
142 * = there are many different ACL text formats
143 * = would like to be able to read/convert archives containing ACLs
144 * on platforms that lack ACL libraries
148 * Permission bits mimic POSIX.1e. Note that I've not followed POSIX.1e's
149 * "permset"/"perm" abstract type nonsense. A permset is just a simple
150 * bitmap, following long-standing Unix tradition.
152 #define ARCHIVE_ENTRY_ACL_EXECUTE 1
153 #define ARCHIVE_ENTRY_ACL_WRITE 2
154 #define ARCHIVE_ENTRY_ACL_READ 4
156 /* We need to be able to specify either or both of these. */
157 #define ARCHIVE_ENTRY_ACL_TYPE_ACCESS 256
158 #define ARCHIVE_ENTRY_ACL_TYPE_DEFAULT 512
160 /* Tag values mimic POSIX.1e */
161 #define ARCHIVE_ENTRY_ACL_USER 10001 /* Specified user. */
162 #define ARCHIVE_ENTRY_ACL_USER_OBJ 10002 /* User who owns the file. */
163 #define ARCHIVE_ENTRY_ACL_GROUP 10003 /* Specified group. */
164 #define ARCHIVE_ENTRY_ACL_GROUP_OBJ 10004 /* Group who owns the file. */
165 #define ARCHIVE_ENTRY_ACL_MASK 10005 /* Modify group access. */
166 #define ARCHIVE_ENTRY_ACL_OTHER 10006 /* Public. */
169 * Set the ACL by clearing it and adding entries one at a time.
170 * Unlike the POSIX.1e ACL routines, you must specify the type
171 * (access/default) for each entry. Internally, the ACL data is just
172 * a soup of entries. API calls here allow you to retrieve just the
173 * entries of interest. This design (which goes against the spirit of
174 * POSIX.1e) is useful for handling archive formats that combine
175 * default and access information in a single ACL list.
177 void archive_entry_acl_clear(struct archive_entry *);
178 void archive_entry_acl_add_entry(struct archive_entry *,
179 int type, int permset, int tag, int qual, const char *name);
180 void archive_entry_acl_add_entry_w(struct archive_entry *,
181 int type, int permset, int tag, int qual, const wchar_t *name);
184 * To retrieve the ACL, first "reset", then repeatedly ask for the
185 * "next" entry. The want_type parameter allows you to request only
186 * access entries or only default entries.
188 int archive_entry_acl_reset(struct archive_entry *, int want_type);
189 int archive_entry_acl_next(struct archive_entry *, int want_type,
190 int *type, int *permset, int *tag, int *qual, const char **name);
191 int archive_entry_acl_next_w(struct archive_entry *, int want_type,
192 int *type, int *permset, int *tag, int *qual,
193 const wchar_t **name);
196 * Construct a text-format ACL. The flags argument is a bitmask that
197 * can include any of the following:
199 * ARCHIVE_ENTRY_ACL_TYPE_ACCESS - Include access entries.
200 * ARCHIVE_ENTRY_ACL_TYPE_DEFAULT - Include default entries.
201 * ARCHIVE_ENTRY_ACL_STYLE_EXTRA_ID - Include extra numeric ID field in
202 * each ACL entry. (As used by 'star'.)
203 * ARCHIVE_ENTRY_ACL_STYLE_MARK_DEFAULT - Include "default:" before each
206 #define ARCHIVE_ENTRY_ACL_STYLE_EXTRA_ID 1024
207 #define ARCHIVE_ENTRY_ACL_STYLE_MARK_DEFAULT 2048
208 const wchar_t *archive_entry_acl_text_w(struct archive_entry *, int flags);
210 /* Return a count of entries matching 'want_type' */
211 int archive_entry_acl_count(struct archive_entry *, int want_type);
214 * Private ACL parser. This is private because it handles some
215 * very weird formats that clients should not be messing with.
216 * Clients should only deal with their platform-native formats.
217 * Because of the need to support many formats cleanly, new arguments
218 * are likely to get added on a regular basis. Clients who try to use
219 * this interface are likely to be surprised when it changes.
223 int __archive_entry_acl_parse_w(struct archive_entry *,
224 const wchar_t *, int type);
232 * extended attributes
235 void archive_entry_xattr_clear(struct archive_entry *);
236 void archive_entry_xattr_add_entry(struct archive_entry *,
237 const char *name, const void *value, size_t size);
240 * To retrieve the xattr list, first "reset", then repeatedly ask for the
244 int archive_entry_xattr_count(struct archive_entry *);
245 int archive_entry_xattr_reset(struct archive_entry *);
246 int archive_entry_xattr_next(struct archive_entry *,
247 const char **name, const void **value, size_t *);
250 #endif /* !ARCHIVE_ENTRY_H_INCLUDED */