1 .\" Copyright (c) 2003-2007 Tim Kientzle
2 .\" All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
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9 .\" 2. Redistributions in binary form must reproduce the above copyright
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13 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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31 .Nm archive_entry_acl_add_entry ,
32 .Nm archive_entry_acl_add_entry_w ,
33 .Nm archive_entry_acl_clear ,
34 .Nm archive_entry_acl_count ,
35 .Nm archive_entry_acl_next ,
36 .Nm archive_entry_acl_next_w ,
37 .Nm archive_entry_acl_reset ,
38 .Nm archive_entry_acl_text_w ,
39 .Nm archive_entry_atime ,
40 .Nm archive_entry_atime_nsec ,
41 .Nm archive_entry_clear ,
42 .Nm archive_entry_clone ,
43 .Nm archive_entry_copy_fflags_text_w ,
44 .Nm archive_entry_copy_gname ,
45 .Nm archive_entry_copy_gname_w ,
46 .Nm archive_entry_copy_hardlink ,
47 .Nm archive_entry_copy_hardlink_w ,
48 .Nm archive_entry_copy_link ,
49 .Nm archive_entry_copy_link_w ,
50 .Nm archive_entry_copy_pathname_w ,
51 .Nm archive_entry_copy_stat ,
52 .Nm archive_entry_copy_symlink ,
53 .Nm archive_entry_copy_symlink_w ,
54 .Nm archive_entry_copy_uname ,
55 .Nm archive_entry_copy_uname_w ,
56 .Nm archive_entry_dev ,
57 .Nm archive_entry_devmajor ,
58 .Nm archive_entry_devminor ,
59 .Nm archive_entry_filetype ,
60 .Nm archive_entry_fflags ,
61 .Nm archive_entry_fflags_text ,
62 .Nm archive_entry_free ,
63 .Nm archive_entry_gid ,
64 .Nm archive_entry_gname ,
65 .Nm archive_entry_hardlink ,
66 .Nm archive_entry_ino ,
67 .Nm archive_entry_mode ,
68 .Nm archive_entry_mtime ,
69 .Nm archive_entry_mtime_nsec ,
70 .Nm archive_entry_nlink ,
71 .Nm archive_entry_new ,
72 .Nm archive_entry_pathname ,
73 .Nm archive_entry_pathname_w ,
74 .Nm archive_entry_rdev ,
75 .Nm archive_entry_rdevmajor ,
76 .Nm archive_entry_rdevminor ,
77 .Nm archive_entry_set_atime ,
78 .Nm archive_entry_set_ctime ,
79 .Nm archive_entry_set_dev ,
80 .Nm archive_entry_set_devmajor ,
81 .Nm archive_entry_set_devminor ,
82 .Nm archive_entry_set_filetype ,
83 .Nm archive_entry_set_fflags ,
84 .Nm archive_entry_set_gid ,
85 .Nm archive_entry_set_gname ,
86 .Nm archive_entry_set_hardlink ,
87 .Nm archive_entry_set_link ,
88 .Nm archive_entry_set_mode ,
89 .Nm archive_entry_set_mtime ,
90 .Nm archive_entry_set_pathname ,
91 .Nm archive_entry_set_rdevmajor ,
92 .Nm archive_entry_set_rdevminor ,
93 .Nm archive_entry_set_size ,
94 .Nm archive_entry_set_symlink ,
95 .Nm archive_entry_set_uid ,
96 .Nm archive_entry_set_uname ,
97 .Nm archive_entry_size ,
98 .Nm archive_entry_stat ,
99 .Nm archive_entry_symlink ,
100 .Nm archive_entry_uid ,
101 .Nm archive_entry_uname
102 .Nd functions for manipulating archive entry descriptions
106 .Fo archive_entry_acl_add_entry
107 .Fa "struct archive_entry *"
112 .Fa "const char *name"
115 .Fo archive_entry_acl_add_entry_w
116 .Fa "struct archive_entry *"
121 .Fa "const wchar_t *name"
124 .Fn archive_entry_acl_clear "struct archive_entry *"
126 .Fn archive_entry_acl_count "struct archive_entry *" "int type"
128 .Fo archive_entry_acl_next
129 .Fa "struct archive_entry *"
135 .Fa "const char **name"
138 .Fo archive_entry_acl_next_w
139 .Fa "struct archive_entry *"
145 .Fa "const wchar_t **name"
148 .Fn archive_entry_acl_reset "struct archive_entry *" "int want_type"
150 .Fn archive_entry_acl_text_w "struct archive_entry *" "int flags"
152 .Fn archive_entry_atime "struct archive_entry *"
154 .Fn archive_entry_atime_nsec "struct archive_entry *"
155 .Ft "struct archive_entry *"
156 .Fn archive_entry_clear "struct archive_entry *"
157 .Ft struct archive_entry *
158 .Fn archive_entry_clone "struct archive_entry *"
160 .Fn archive_entry_copy_fflags_text_w "struct archive_entry *" "const wchar_t *"
162 .Fn archive_entry_copy_gname "struct archive_entry *" "const char *"
164 .Fn archive_entry_copy_gname_w "struct archive_entry *" "const wchar_t *"
166 .Fn archive_entry_copy_hardlink "struct archive_entry *" "const char *"
168 .Fn archive_entry_copy_hardlink_w "struct archive_entry *" "const wchar_t *"
170 .Fn archive_entry_copy_pathname_w "struct archive_entry *" "const wchar_t *"
172 .Fn archive_entry_copy_stat "struct archive_entry *" "const struct stat *"
174 .Fn archive_entry_copy_symlink "struct archive_entry *" "const char *"
176 .Fn archive_entry_copy_symlink_w "struct archive_entry *" "const wchar_t *"
178 .Fn archive_entry_copy_uname "struct archive_entry *" "const char *"
180 .Fn archive_entry_copy_uname_w "struct archive_entry *" "const wchar_t *"
182 .Fn archive_entry_dev "struct archive_entry *"
184 .Fn archive_entry_devmajor "struct archive_entry *"
186 .Fn archive_entry_devminor "struct archive_entry *"
188 .Fn archive_entry_filetype "struct archive_entry *"
190 .Fo archive_entry_fflags
191 .Fa "struct archive_entry *"
192 .Fa "unsigned long *set"
193 .Fa "unsigned long *clear"
196 .Fn archive_entry_fflags_text "struct archive_entry *"
198 .Fn archive_entry_free "struct archive_entry *"
200 .Fn archive_entry_gname "struct archive_entry *"
202 .Fn archive_entry_hardlink "struct archive_entry *"
204 .Fn archive_entry_ino "struct archive_entry *"
206 .Fn archive_entry_mode "struct archive_entry *"
208 .Fn archive_entry_mtime "struct archive_entry *"
210 .Fn archive_entry_mtime_nsec "struct archive_entry *"
212 .Fn archive_entry_nlink "struct archive_entry *"
213 .Ft struct archive_entry *
214 .Fn archive_entry_new "void"
216 .Fn archive_entry_pathname "struct archive_entry *"
218 .Fn archive_entry_pathname_w "struct archive_entry *"
220 .Fn archive_entry_rdev "struct archive_entry *"
222 .Fn archive_entry_rdevmajor "struct archive_entry *"
224 .Fn archive_entry_rdevminor "struct archive_entry *"
226 .Fn archive_entry_set_dev "struct archive_entry *" "dev_t"
228 .Fn archive_entry_set_devmajor "struct archive_entry *" "dev_t"
230 .Fn archive_entry_set_devminor "struct archive_entry *" "dev_t"
232 .Fn archive_entry_set_filetype "struct archive_entry *" "unsigned int"
234 .Fo archive_entry_set_fflags
235 .Fa "struct archive_entry *"
236 .Fa "unsigned long set"
237 .Fa "unsigned long clear"
240 .Fn archive_entry_set_gid "struct archive_entry *" "gid_t"
242 .Fn archive_entry_set_gname "struct archive_entry *" "const char *"
244 .Fn archive_entry_set_hardlink "struct archive_entry *" "const char *"
246 .Fn archive_entry_set_ino "struct archive_entry *" "unsigned long"
248 .Fn archive_entry_set_link "struct archive_entry *" "const char *"
250 .Fn archive_entry_set_mode "struct archive_entry *" "mode_t"
252 .Fn archive_entry_set_mtime "struct archive_entry *" "time_t" "long nanos"
254 .Fn archive_entry_set_nlink "struct archive_entry *" "unsigned int"
256 .Fn archive_entry_set_pathname "struct archive_entry *" "const char *"
258 .Fn archive_entry_set_rdev "struct archive_entry *" "dev_t"
260 .Fn archive_entry_set_rdevmajor "struct archive_entry *" "dev_t"
262 .Fn archive_entry_set_rdevminor "struct archive_entry *" "dev_t"
264 .Fn archive_entry_set_size "struct archive_entry *" "int64_t"
266 .Fn archive_entry_set_symlink "struct archive_entry *" "const char *"
268 .Fn archive_entry_set_uid "struct archive_entry *" "uid_t"
270 .Fn archive_entry_set_uname "struct archive_entry *" "const char *"
272 .Fn archive_entry_size "struct archive_entry *"
273 .Ft const struct stat *
274 .Fn archive_entry_stat "struct archive_entry *"
276 .Fn archive_entry_symlink "struct archive_entry *"
278 .Fn archive_entry_uname "struct archive_entry *"
280 These functions create and manipulate data objects that
281 represent entries within an archive.
283 .Tn struct archive_entry
284 as a heavy-duty version of
286 it includes everything from
288 plus associated pathname, textual group and user names, etc.
289 These objects are used by
291 to represent the metadata associated with a particular
293 .Ss Create and Destroy
294 There are functions to allocate, destroy, clear, and copy
297 .Bl -tag -compact -width indent
298 .It Fn archive_entry_clear
299 Erases the object, resetting all internal fields to the
300 same state as a newly-created object.
301 This is provided to allow you to quickly recycle objects
302 without thrashing the heap.
303 .It Fn archive_entry_clone
304 A deep copy operation; all text fields are duplicated.
305 .It Fn archive_entry_free
307 .Tn struct archive_entry
309 .It Fn archive_entry_new
310 Allocate and return a blank
311 .Tn struct archive_entry
314 .Ss Set and Get Functions
315 Most of the functions here set or read entries in an object.
316 Such functions have one of the following forms:
317 .Bl -tag -compact -width indent
318 .It Fn archive_entry_set_XXXX
319 Stores the provided data in the object.
320 In particular, for strings, the pointer is stored,
321 not the referenced string.
322 .It Fn archive_entry_copy_XXXX
323 As above, except that the referenced data is copied
325 .It Fn archive_entry_XXXX
326 Returns the specified data.
327 In the case of strings, a const-qualified pointer to
328 the string is returned.
330 String data can be set or accessed as wide character strings
334 The functions that use wide character strings are suffixed with
336 Note that these are different representations of the same data:
337 For example, if you store a narrow string and read the corresponding
338 wide string, the object will transparently convert formats
339 using the current locale.
340 Similarly, if you store a wide string and then store a
341 narrow string for the same data, the previously-set wide string will
342 be discarded in favor of the new data.
344 There are a few set/get functions that merit additional description:
345 .Bl -tag -compact -width indent
346 .It Fn archive_entry_set_link
347 This function sets the symlink field if it is already set.
348 Otherwise, it sets the hardlink field.
351 File flags are transparently converted between a bitmap
352 representation and a textual format.
353 For example, if you set the bitmap and ask for text, the library
354 will build a canonical text format.
355 However, if you set a text format and request a text format,
356 you will get back the same text, even if it is ill-formed.
357 If you need to canonicalize a textual flags string, you should first set the
358 text form, then request the bitmap form, then use that to set the bitmap form.
359 Setting the bitmap format will clear the internal text representation
360 and force it to be reconstructed when you next request the text form.
362 The bitmap format consists of two integers, one containing bits
363 that should be set, the other specifying bits that should be
365 Bits not mentioned in either bitmap will be ignored.
366 Usually, the bitmap of bits to be cleared will be set to zero.
367 In unusual circumstances, you can force a fully-specified set
368 of file flags by setting the bitmap of flags to clear to the complement
369 of the bitmap of flags to set.
372 which only includes names for set bits.)
373 Converting a bitmap to a textual string is a platform-specific
374 operation; bits that are not meaningful on the current platform
377 The canonical text format is a comma-separated list of flag names.
379 .Fn archive_entry_copy_fflags_text_w
380 function parses the provided text and sets the internal bitmap values.
381 This is a platform-specific operation; names that are not meaningful
382 on the current platform will be ignored.
383 The function returns a pointer to the start of the first name that was not
384 recognized, or NULL if every name was recognized.
385 Note that every name--including names that follow an unrecognized name--will
386 be evaluated, and the bitmaps will be set to reflect every name that is
388 (In particular, this differs from
390 which stops parsing at the first unrecognized name.)
392 XXX This needs serious help.
396 .Dq Access Control List
397 (ACL) is a list of permissions that grant access to particular users or
398 groups beyond what would normally be provided by standard POSIX mode bits.
399 The ACL handling here addresses some deficiencies in the POSIX.1e draft 17 ACL
401 In particular, POSIX.1e draft 17 specifies several different formats, but
402 none of those formats include both textual user/group names and numeric
405 XXX explain ACL stuff XXX
407 .\" .Sh RETURN VALUES
414 library first appeared in
420 library was written by
421 .An Tim Kientzle Aq kientzle@acm.org .