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.
26 #include "archive_platform.h"
27 __FBSDID("$FreeBSD: src/lib/libarchive/archive_entry.c,v 1.42 2007/04/14 02:37:22 kientzle Exp $");
29 #ifdef HAVE_SYS_STAT_H
32 #ifdef HAVE_SYS_TYPES_H
33 #include <sys/types.h>
36 #include <sys/mkdev.h>
37 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
38 # define makedev mkdev
41 #ifdef MAJOR_IN_SYSMACROS
42 #include <sys/sysmacros.h>
45 #ifdef HAVE_EXT2FS_EXT2_FS_H
46 #include <ext2fs/ext2_fs.h> /* for Linux file flags */
51 #ifdef HAVE_LINUX_FS_H
52 #include <linux/fs.h> /* for Linux file flags */
54 #ifdef HAVE_LINUX_EXT2_FS_H
55 #include <linux/ext2_fs.h> /* for Linux file flags */
70 static wchar_t * wcscpy(wchar_t *s1, const wchar_t *s2)
73 while ((*s1 = *s2) != L'\0')
79 static size_t wcslen(const wchar_t *s)
88 /* Good enough for simple equality testing, but not for sorting. */
89 #define wmemcmp(a,b,i) memcmp((a), (b), (i) * sizeof(wchar_t))
92 #define wmemcpy(a,b,i) (wchar_t *)memcpy((a), (b), (i) * sizeof(wchar_t))
96 #include "archive_entry.h"
97 #include "archive_private.h"
100 #define max(a, b) ((a)>(b)?(a):(b))
103 * Handle wide character (i.e., Unicode) and non-wide character
104 * strings transparently.
111 const wchar_t *aes_wcs;
112 wchar_t *aes_wcs_alloc;
117 int type; /* E.g., access or default */
118 int tag; /* E.g., user/group/other/mask */
119 int permset; /* r/w/x bits */
120 int id; /* uid/gid for user/group */
121 struct aes name; /* uname/gname */
125 struct ae_xattr *next;
132 static void aes_clean(struct aes *);
133 static void aes_copy(struct aes *dest, struct aes *src);
134 static const char * aes_get_mbs(struct aes *);
135 static const wchar_t * aes_get_wcs(struct aes *);
136 static void aes_set_mbs(struct aes *, const char *mbs);
137 static void aes_copy_mbs(struct aes *, const char *mbs);
138 /* static void aes_set_wcs(struct aes *, const wchar_t *wcs); */
139 static void aes_copy_wcs(struct aes *, const wchar_t *wcs);
140 static void aes_copy_wcs_len(struct aes *, const wchar_t *wcs, size_t);
142 static char * ae_fflagstostr(unsigned long bitset, unsigned long bitclear);
143 static const wchar_t *ae_wcstofflags(const wchar_t *stringp,
144 unsigned long *setp, unsigned long *clrp);
145 static void append_entry_w(wchar_t **wp, const wchar_t *prefix, int tag,
146 const wchar_t *wname, int perm, int id);
147 static void append_id_w(wchar_t **wp, int id);
149 static int acl_special(struct archive_entry *entry,
150 int type, int permset, int tag);
151 static struct ae_acl *acl_new_entry(struct archive_entry *entry,
152 int type, int permset, int tag, int id);
153 static int isint_w(const wchar_t *start, const wchar_t *end, int *result);
154 static void next_field_w(const wchar_t **wp, const wchar_t **start,
155 const wchar_t **end, wchar_t *sep);
156 static int prefix_w(const wchar_t *start, const wchar_t *end,
157 const wchar_t *test);
159 archive_entry_acl_add_entry_w_len(struct archive_entry *entry, int type,
160 int permset, int tag, int id, const wchar_t *name, size_t);
164 * Description of an archive entry.
166 * Basically, this is a "struct stat" with a few text fields added in.
168 * TODO: Add "comment", "charset", and possibly other entries
169 * that are supported by "pax interchange" format. However, GNU, ustar,
170 * cpio, and other variants don't support these features, so they're not an
171 * excruciatingly high priority right now.
173 * TODO: "pax interchange" format allows essentially arbitrary
174 * key/value attributes to be attached to any entry. Supporting
175 * such extensions may make this library useful for special
176 * applications (e.g., a package manager could attach special
177 * package-management attributes to each entry). There are tricky
178 * API issues involved, so this is not going to happen until
179 * there's a real demand for it.
181 * TODO: Design a good API for handling sparse files.
183 struct archive_entry {
185 * Note that ae_stat.st_mode & S_IFMT can be 0!
187 * This occurs when the actual file type of the object is not
188 * in the archive. For example, 'tar' archives store
189 * hardlinks without marking the type of the underlying
195 * Use aes here so that we get transparent mbs<->wcs conversions.
197 struct aes ae_fflags_text; /* Text fflags per fflagstostr(3) */
198 unsigned long ae_fflags_set; /* Bitmap fflags */
199 unsigned long ae_fflags_clear;
200 struct aes ae_gname; /* Name of owning group */
201 struct aes ae_hardlink; /* Name of target for hardlink */
202 struct aes ae_pathname; /* Name of entry */
203 struct aes ae_symlink; /* symlink contents */
204 struct aes ae_uname; /* Name of owner */
206 struct ae_acl *acl_head;
207 struct ae_acl *acl_p;
208 int acl_state; /* See acl_next for details. */
211 struct ae_xattr *xattr_head;
212 struct ae_xattr *xattr_p;
216 aes_clean(struct aes *aes)
218 if (aes->aes_mbs_alloc) {
219 free(aes->aes_mbs_alloc);
220 aes->aes_mbs_alloc = NULL;
222 if (aes->aes_wcs_alloc) {
223 free(aes->aes_wcs_alloc);
224 aes->aes_wcs_alloc = NULL;
226 memset(aes, 0, sizeof(*aes));
230 aes_copy(struct aes *dest, struct aes *src)
233 if (src->aes_mbs != NULL) {
234 dest->aes_mbs_alloc = strdup(src->aes_mbs);
235 dest->aes_mbs = dest->aes_mbs_alloc;
236 if (dest->aes_mbs == NULL)
237 __archive_errx(1, "No memory for aes_copy()");
240 if (src->aes_wcs != NULL) {
241 dest->aes_wcs_alloc = (wchar_t *)malloc((wcslen(src->aes_wcs) + 1)
243 dest->aes_wcs = dest->aes_wcs_alloc;
244 if (dest->aes_wcs == NULL)
245 __archive_errx(1, "No memory for aes_copy()");
246 wcscpy(dest->aes_wcs_alloc, src->aes_wcs);
251 aes_get_mbs(struct aes *aes)
253 if (aes->aes_mbs == NULL && aes->aes_wcs == NULL)
255 if (aes->aes_mbs == NULL && aes->aes_wcs != NULL) {
257 * XXX Need to estimate the number of byte in the
258 * multi-byte form. Assume that, on average, wcs
259 * chars encode to no more than 3 bytes. There must
260 * be a better way... XXX
262 size_t mbs_length = wcslen(aes->aes_wcs) * 3 + 64;
264 aes->aes_mbs_alloc = (char *)malloc(mbs_length);
265 aes->aes_mbs = aes->aes_mbs_alloc;
266 if (aes->aes_mbs == NULL)
267 __archive_errx(1, "No memory for aes_get_mbs()");
268 wcstombs(aes->aes_mbs_alloc, aes->aes_wcs, mbs_length - 1);
269 aes->aes_mbs_alloc[mbs_length - 1] = 0;
271 return (aes->aes_mbs);
274 static const wchar_t *
275 aes_get_wcs(struct aes *aes)
277 if (aes->aes_wcs == NULL && aes->aes_mbs == NULL)
279 if (aes->aes_wcs == NULL && aes->aes_mbs != NULL) {
281 * No single byte will be more than one wide character,
282 * so this length estimate will always be big enough.
284 size_t wcs_length = strlen(aes->aes_mbs);
287 = (wchar_t *)malloc((wcs_length + 1) * sizeof(wchar_t));
288 aes->aes_wcs = aes->aes_wcs_alloc;
289 if (aes->aes_wcs == NULL)
290 __archive_errx(1, "No memory for aes_get_wcs()");
291 mbstowcs(aes->aes_wcs_alloc, aes->aes_mbs, wcs_length);
292 aes->aes_wcs_alloc[wcs_length] = 0;
294 return (aes->aes_wcs);
298 aes_set_mbs(struct aes *aes, const char *mbs)
300 if (aes->aes_mbs_alloc) {
301 free(aes->aes_mbs_alloc);
302 aes->aes_mbs_alloc = NULL;
304 if (aes->aes_wcs_alloc) {
305 free(aes->aes_wcs_alloc);
306 aes->aes_wcs_alloc = NULL;
313 aes_copy_mbs(struct aes *aes, const char *mbs)
315 if (aes->aes_mbs_alloc) {
316 free(aes->aes_mbs_alloc);
317 aes->aes_mbs_alloc = NULL;
319 if (aes->aes_wcs_alloc) {
320 free(aes->aes_wcs_alloc);
321 aes->aes_wcs_alloc = NULL;
323 aes->aes_mbs_alloc = (char *)malloc((strlen(mbs) + 1) * sizeof(char));
324 if (aes->aes_mbs_alloc == NULL)
325 __archive_errx(1, "No memory for aes_copy_mbs()");
326 strcpy(aes->aes_mbs_alloc, mbs);
327 aes->aes_mbs = aes->aes_mbs_alloc;
333 aes_set_wcs(struct aes *aes, const wchar_t *wcs)
335 if (aes->aes_mbs_alloc) {
336 free(aes->aes_mbs_alloc);
337 aes->aes_mbs_alloc = NULL;
339 if (aes->aes_wcs_alloc) {
340 free(aes->aes_wcs_alloc);
341 aes->aes_wcs_alloc = NULL;
349 aes_copy_wcs(struct aes *aes, const wchar_t *wcs)
351 aes_copy_wcs_len(aes, wcs, wcslen(wcs));
355 aes_copy_wcs_len(struct aes *aes, const wchar_t *wcs, size_t len)
357 if (aes->aes_mbs_alloc) {
358 free(aes->aes_mbs_alloc);
359 aes->aes_mbs_alloc = NULL;
361 if (aes->aes_wcs_alloc) {
362 free(aes->aes_wcs_alloc);
363 aes->aes_wcs_alloc = NULL;
366 aes->aes_wcs_alloc = (wchar_t *)malloc((len + 1) * sizeof(wchar_t));
367 if (aes->aes_wcs_alloc == NULL)
368 __archive_errx(1, "No memory for aes_copy_wcs()");
369 wmemcpy(aes->aes_wcs_alloc, wcs, len);
370 aes->aes_wcs_alloc[len] = L'\0';
371 aes->aes_wcs = aes->aes_wcs_alloc;
374 struct archive_entry *
375 archive_entry_clear(struct archive_entry *entry)
377 aes_clean(&entry->ae_fflags_text);
378 aes_clean(&entry->ae_gname);
379 aes_clean(&entry->ae_hardlink);
380 aes_clean(&entry->ae_pathname);
381 aes_clean(&entry->ae_symlink);
382 aes_clean(&entry->ae_uname);
383 archive_entry_acl_clear(entry);
384 archive_entry_xattr_clear(entry);
385 memset(entry, 0, sizeof(*entry));
389 struct archive_entry *
390 archive_entry_clone(struct archive_entry *entry)
392 struct archive_entry *entry2;
394 /* Allocate new structure and copy over all of the fields. */
395 entry2 = (struct archive_entry *)malloc(sizeof(*entry2));
398 memset(entry2, 0, sizeof(*entry2));
399 entry2->ae_stat = entry->ae_stat;
400 entry2->ae_fflags_set = entry->ae_fflags_set;
401 entry2->ae_fflags_clear = entry->ae_fflags_clear;
403 aes_copy(&entry2->ae_fflags_text, &entry->ae_fflags_text);
404 aes_copy(&entry2->ae_gname, &entry->ae_gname);
405 aes_copy(&entry2->ae_hardlink, &entry->ae_hardlink);
406 aes_copy(&entry2->ae_pathname, &entry->ae_pathname);
407 aes_copy(&entry2->ae_symlink, &entry->ae_symlink);
408 aes_copy(&entry2->ae_uname, &entry->ae_uname);
410 /* XXX TODO: Copy ACL data over as well. XXX */
411 /* XXX TODO: Copy xattr data over as well. XXX */
416 archive_entry_free(struct archive_entry *entry)
418 archive_entry_clear(entry);
422 struct archive_entry *
423 archive_entry_new(void)
425 struct archive_entry *entry;
427 entry = (struct archive_entry *)malloc(sizeof(*entry));
430 memset(entry, 0, sizeof(*entry));
435 * Functions for reading fields from an archive_entry.
439 archive_entry_atime(struct archive_entry *entry)
441 return (entry->ae_stat.st_atime);
445 archive_entry_atime_nsec(struct archive_entry *entry)
447 (void)entry; /* entry can be unused here. */
448 return (ARCHIVE_STAT_ATIME_NANOS(&entry->ae_stat));
452 archive_entry_ctime(struct archive_entry *entry)
454 return (entry->ae_stat.st_ctime);
458 archive_entry_ctime_nsec(struct archive_entry *entry)
460 (void)entry; /* entry can be unused here. */
461 return (ARCHIVE_STAT_CTIME_NANOS(&entry->ae_stat));
465 archive_entry_dev(struct archive_entry *entry)
467 return (entry->ae_stat.st_dev);
471 archive_entry_filetype(struct archive_entry *entry)
473 return (S_IFMT & entry->ae_stat.st_mode);
477 archive_entry_fflags(struct archive_entry *entry,
478 unsigned long *set, unsigned long *clear)
480 *set = entry->ae_fflags_set;
481 *clear = entry->ae_fflags_clear;
485 * Note: if text was provided, this just returns that text. If you
486 * really need the text to be rebuilt in a canonical form, set the
487 * text, ask for the bitmaps, then set the bitmaps. (Setting the
488 * bitmaps clears any stored text.) This design is deliberate: if
489 * we're editing archives, we don't want to discard flags just because
490 * they aren't supported on the current system. The bitmap<->text
491 * conversions are platform-specific (see below).
494 archive_entry_fflags_text(struct archive_entry *entry)
499 f = aes_get_mbs(&entry->ae_fflags_text);
503 if (entry->ae_fflags_set == 0 && entry->ae_fflags_clear == 0)
506 p = ae_fflagstostr(entry->ae_fflags_set, entry->ae_fflags_clear);
510 aes_copy_mbs(&entry->ae_fflags_text, p);
512 f = aes_get_mbs(&entry->ae_fflags_text);
517 archive_entry_gid(struct archive_entry *entry)
519 return (entry->ae_stat.st_gid);
523 archive_entry_gname(struct archive_entry *entry)
525 return (aes_get_mbs(&entry->ae_gname));
529 archive_entry_gname_w(struct archive_entry *entry)
531 return (aes_get_wcs(&entry->ae_gname));
535 archive_entry_hardlink(struct archive_entry *entry)
537 return (aes_get_mbs(&entry->ae_hardlink));
541 archive_entry_hardlink_w(struct archive_entry *entry)
543 return (aes_get_wcs(&entry->ae_hardlink));
547 archive_entry_ino(struct archive_entry *entry)
549 return (entry->ae_stat.st_ino);
553 archive_entry_mode(struct archive_entry *entry)
555 return (entry->ae_stat.st_mode);
559 archive_entry_mtime(struct archive_entry *entry)
561 return (entry->ae_stat.st_mtime);
565 archive_entry_mtime_nsec(struct archive_entry *entry)
567 (void)entry; /* entry can be unused here. */
568 return (ARCHIVE_STAT_MTIME_NANOS(&entry->ae_stat));
572 archive_entry_nlink(struct archive_entry *entry)
574 return (entry->ae_stat.st_nlink);
578 archive_entry_pathname(struct archive_entry *entry)
580 return (aes_get_mbs(&entry->ae_pathname));
584 archive_entry_pathname_w(struct archive_entry *entry)
586 return (aes_get_wcs(&entry->ae_pathname));
590 archive_entry_rdev(struct archive_entry *entry)
592 return (entry->ae_stat.st_rdev);
596 archive_entry_rdevmajor(struct archive_entry *entry)
598 return (major(entry->ae_stat.st_rdev));
602 archive_entry_rdevminor(struct archive_entry *entry)
604 return (minor(entry->ae_stat.st_rdev));
608 archive_entry_size(struct archive_entry *entry)
610 return (entry->ae_stat.st_size);
614 archive_entry_stat(struct archive_entry *entry)
616 return (&entry->ae_stat);
620 archive_entry_symlink(struct archive_entry *entry)
622 return (aes_get_mbs(&entry->ae_symlink));
626 archive_entry_symlink_w(struct archive_entry *entry)
628 return (aes_get_wcs(&entry->ae_symlink));
632 archive_entry_uid(struct archive_entry *entry)
634 return (entry->ae_stat.st_uid);
638 archive_entry_uname(struct archive_entry *entry)
640 return (aes_get_mbs(&entry->ae_uname));
644 archive_entry_uname_w(struct archive_entry *entry)
646 return (aes_get_wcs(&entry->ae_uname));
650 * Functions to set archive_entry properties.
654 * Note "copy" not "set" here. The "set" functions that accept a pointer
655 * only store the pointer; they don't copy the underlying object.
658 archive_entry_copy_stat(struct archive_entry *entry, const struct stat *st)
660 entry->ae_stat = *st;
664 archive_entry_set_filetype(struct archive_entry *entry, unsigned int type)
666 entry->ae_stat.st_mode &= ~AE_IFMT;
667 entry->ae_stat.st_mode |= AE_IFMT & type;
671 archive_entry_set_fflags(struct archive_entry *entry,
672 unsigned long set, unsigned long clear)
674 aes_clean(&entry->ae_fflags_text);
675 entry->ae_fflags_set = set;
676 entry->ae_fflags_clear = clear;
680 archive_entry_copy_fflags_text_w(struct archive_entry *entry,
681 const wchar_t *flags)
683 aes_copy_wcs(&entry->ae_fflags_text, flags);
684 return (ae_wcstofflags(flags,
685 &entry->ae_fflags_set, &entry->ae_fflags_clear));
689 archive_entry_set_gid(struct archive_entry *entry, gid_t g)
691 entry->ae_stat.st_gid = g;
695 archive_entry_set_gname(struct archive_entry *entry, const char *name)
697 aes_set_mbs(&entry->ae_gname, name);
701 archive_entry_copy_gname_w(struct archive_entry *entry, const wchar_t *name)
703 aes_copy_wcs(&entry->ae_gname, name);
707 archive_entry_set_ino(struct archive_entry *entry, unsigned long ino)
709 entry->ae_stat.st_ino = ino;
713 archive_entry_set_hardlink(struct archive_entry *entry, const char *target)
715 aes_set_mbs(&entry->ae_hardlink, target);
719 archive_entry_copy_hardlink(struct archive_entry *entry, const char *target)
721 aes_copy_mbs(&entry->ae_hardlink, target);
725 archive_entry_copy_hardlink_w(struct archive_entry *entry, const wchar_t *target)
727 aes_copy_wcs(&entry->ae_hardlink, target);
731 archive_entry_set_atime(struct archive_entry *entry, time_t t, long ns)
733 entry->ae_stat.st_atime = t;
734 ARCHIVE_STAT_SET_ATIME_NANOS(&entry->ae_stat, ns);
738 archive_entry_set_ctime(struct archive_entry *entry, time_t t, long ns)
740 entry->ae_stat.st_ctime = t;
741 ARCHIVE_STAT_SET_CTIME_NANOS(&entry->ae_stat, ns);
745 archive_entry_set_dev(struct archive_entry *entry, dev_t d)
747 entry->ae_stat.st_dev = d;
751 archive_entry_set_devmajor(struct archive_entry *entry, dev_t m)
755 d = entry->ae_stat.st_dev;
756 entry->ae_stat.st_dev = makedev(major(m), minor(d));
760 archive_entry_set_devminor(struct archive_entry *entry, dev_t m)
764 d = entry->ae_stat.st_dev;
765 entry->ae_stat.st_dev = makedev(major(d), minor(m));
768 /* Set symlink if symlink is already set, else set hardlink. */
770 archive_entry_set_link(struct archive_entry *entry, const char *target)
772 if (entry->ae_symlink.aes_mbs != NULL ||
773 entry->ae_symlink.aes_wcs != NULL)
774 aes_set_mbs(&entry->ae_symlink, target);
776 aes_set_mbs(&entry->ae_hardlink, target);
780 archive_entry_set_mode(struct archive_entry *entry, mode_t m)
782 entry->ae_stat.st_mode = m;
786 archive_entry_set_mtime(struct archive_entry *entry, time_t m, long ns)
788 entry->ae_stat.st_mtime = m;
789 ARCHIVE_STAT_SET_MTIME_NANOS(&entry->ae_stat, ns);
793 archive_entry_set_nlink(struct archive_entry *entry, unsigned int nlink)
795 entry->ae_stat.st_nlink = nlink;
799 archive_entry_set_pathname(struct archive_entry *entry, const char *name)
801 aes_set_mbs(&entry->ae_pathname, name);
805 archive_entry_copy_pathname(struct archive_entry *entry, const char *name)
807 aes_copy_mbs(&entry->ae_pathname, name);
811 archive_entry_copy_pathname_w(struct archive_entry *entry, const wchar_t *name)
813 aes_copy_wcs(&entry->ae_pathname, name);
817 archive_entry_set_rdev(struct archive_entry *entry, dev_t m)
819 entry->ae_stat.st_rdev = m;
823 archive_entry_set_rdevmajor(struct archive_entry *entry, dev_t m)
827 d = entry->ae_stat.st_rdev;
828 entry->ae_stat.st_rdev = makedev(major(m), minor(d));
832 archive_entry_set_rdevminor(struct archive_entry *entry, dev_t m)
836 d = entry->ae_stat.st_rdev;
837 entry->ae_stat.st_rdev = makedev(major(d), minor(m));
841 archive_entry_set_size(struct archive_entry *entry, int64_t s)
843 entry->ae_stat.st_size = s;
847 archive_entry_set_symlink(struct archive_entry *entry, const char *linkname)
849 aes_set_mbs(&entry->ae_symlink, linkname);
853 archive_entry_copy_symlink(struct archive_entry *entry, const char *linkname)
855 aes_copy_mbs(&entry->ae_symlink, linkname);
859 archive_entry_copy_symlink_w(struct archive_entry *entry, const wchar_t *linkname)
861 aes_copy_wcs(&entry->ae_symlink, linkname);
865 archive_entry_set_uid(struct archive_entry *entry, uid_t u)
867 entry->ae_stat.st_uid = u;
871 archive_entry_set_uname(struct archive_entry *entry, const char *name)
873 aes_set_mbs(&entry->ae_uname, name);
877 archive_entry_copy_uname_w(struct archive_entry *entry, const wchar_t *name)
879 aes_copy_wcs(&entry->ae_uname, name);
883 * ACL management. The following would, of course, be a lot simpler
884 * if: 1) the last draft of POSIX.1e were a really thorough and
885 * complete standard that addressed the needs of ACL archiving and 2)
886 * everyone followed it faithfully. Alas, neither is true, so the
887 * following is a lot more complex than might seem necessary to the
892 archive_entry_acl_clear(struct archive_entry *entry)
896 while (entry->acl_head != NULL) {
897 ap = entry->acl_head->next;
898 aes_clean(&entry->acl_head->name);
899 free(entry->acl_head);
900 entry->acl_head = ap;
902 if (entry->acl_text_w != NULL) {
903 free(entry->acl_text_w);
904 entry->acl_text_w = NULL;
907 entry->acl_state = 0; /* Not counting. */
911 * Add a single ACL entry to the internal list of ACL data.
914 archive_entry_acl_add_entry(struct archive_entry *entry,
915 int type, int permset, int tag, int id, const char *name)
919 if (acl_special(entry, type, permset, tag) == 0)
921 ap = acl_new_entry(entry, type, permset, tag, id);
926 if (name != NULL && *name != '\0')
927 aes_copy_mbs(&ap->name, name);
929 aes_clean(&ap->name);
933 * As above, but with a wide-character name.
936 archive_entry_acl_add_entry_w(struct archive_entry *entry,
937 int type, int permset, int tag, int id, const wchar_t *name)
939 archive_entry_acl_add_entry_w_len(entry, type, permset, tag, id, name, wcslen(name));
943 archive_entry_acl_add_entry_w_len(struct archive_entry *entry,
944 int type, int permset, int tag, int id, const wchar_t *name, size_t len)
948 if (acl_special(entry, type, permset, tag) == 0)
950 ap = acl_new_entry(entry, type, permset, tag, id);
955 if (name != NULL && *name != L'\0' && len > 0)
956 aes_copy_wcs_len(&ap->name, name, len);
958 aes_clean(&ap->name);
962 * If this ACL entry is part of the standard POSIX permissions set,
963 * store the permissions in the stat structure and return zero.
966 acl_special(struct archive_entry *entry, int type, int permset, int tag)
968 if (type == ARCHIVE_ENTRY_ACL_TYPE_ACCESS) {
970 case ARCHIVE_ENTRY_ACL_USER_OBJ:
971 entry->ae_stat.st_mode &= ~0700;
972 entry->ae_stat.st_mode |= (permset & 7) << 6;
974 case ARCHIVE_ENTRY_ACL_GROUP_OBJ:
975 entry->ae_stat.st_mode &= ~0070;
976 entry->ae_stat.st_mode |= (permset & 7) << 3;
978 case ARCHIVE_ENTRY_ACL_OTHER:
979 entry->ae_stat.st_mode &= ~0007;
980 entry->ae_stat.st_mode |= permset & 7;
988 * Allocate and populate a new ACL entry with everything but the
991 static struct ae_acl *
992 acl_new_entry(struct archive_entry *entry,
993 int type, int permset, int tag, int id)
997 if (type != ARCHIVE_ENTRY_ACL_TYPE_ACCESS &&
998 type != ARCHIVE_ENTRY_ACL_TYPE_DEFAULT)
1000 if (entry->acl_text_w != NULL) {
1001 free(entry->acl_text_w);
1002 entry->acl_text_w = NULL;
1005 /* XXX TODO: More sanity-checks on the arguments XXX */
1007 /* If there's a matching entry already in the list, overwrite it. */
1008 for (ap = entry->acl_head; ap != NULL; ap = ap->next) {
1009 if (ap->type == type && ap->tag == tag && ap->id == id) {
1010 ap->permset = permset;
1015 /* Add a new entry to the list. */
1016 ap = (struct ae_acl *)malloc(sizeof(*ap));
1019 memset(ap, 0, sizeof(*ap));
1020 ap->next = entry->acl_head;
1021 entry->acl_head = ap;
1025 ap->permset = permset;
1030 * Return a count of entries matching "want_type".
1033 archive_entry_acl_count(struct archive_entry *entry, int want_type)
1039 ap = entry->acl_head;
1040 while (ap != NULL) {
1041 if ((ap->type & want_type) != 0)
1046 if (count > 0 && ((want_type & ARCHIVE_ENTRY_ACL_TYPE_ACCESS) != 0))
1052 * Prepare for reading entries from the ACL data. Returns a count
1053 * of entries matching "want_type", or zero if there are no
1054 * non-extended ACL entries of that type.
1057 archive_entry_acl_reset(struct archive_entry *entry, int want_type)
1061 count = archive_entry_acl_count(entry, want_type);
1064 * If the only entries are the three standard ones,
1065 * then don't return any ACL data. (In this case,
1066 * client can just use chmod(2) to set permissions.)
1068 if ((want_type & ARCHIVE_ENTRY_ACL_TYPE_ACCESS) != 0)
1074 entry->acl_state = ARCHIVE_ENTRY_ACL_USER_OBJ;
1076 entry->acl_state = 0;
1077 entry->acl_p = entry->acl_head;
1082 * Return the next ACL entry in the list. Fake entries for the
1083 * standard permissions and include them in the returned list.
1087 archive_entry_acl_next(struct archive_entry *entry, int want_type, int *type,
1088 int *permset, int *tag, int *id, const char **name)
1094 * The acl_state is either zero (no entries available), -1
1095 * (reading from list), or an entry type (retrieve that type
1096 * from ae_stat.st_mode).
1098 if (entry->acl_state == 0)
1099 return (ARCHIVE_WARN);
1101 /* The first three access entries are special. */
1102 if ((want_type & ARCHIVE_ENTRY_ACL_TYPE_ACCESS) != 0) {
1103 switch (entry->acl_state) {
1104 case ARCHIVE_ENTRY_ACL_USER_OBJ:
1105 *permset = (entry->ae_stat.st_mode >> 6) & 7;
1106 *type = ARCHIVE_ENTRY_ACL_TYPE_ACCESS;
1107 *tag = ARCHIVE_ENTRY_ACL_USER_OBJ;
1108 entry->acl_state = ARCHIVE_ENTRY_ACL_GROUP_OBJ;
1109 return (ARCHIVE_OK);
1110 case ARCHIVE_ENTRY_ACL_GROUP_OBJ:
1111 *permset = (entry->ae_stat.st_mode >> 3) & 7;
1112 *type = ARCHIVE_ENTRY_ACL_TYPE_ACCESS;
1113 *tag = ARCHIVE_ENTRY_ACL_GROUP_OBJ;
1114 entry->acl_state = ARCHIVE_ENTRY_ACL_OTHER;
1115 return (ARCHIVE_OK);
1116 case ARCHIVE_ENTRY_ACL_OTHER:
1117 *permset = entry->ae_stat.st_mode & 7;
1118 *type = ARCHIVE_ENTRY_ACL_TYPE_ACCESS;
1119 *tag = ARCHIVE_ENTRY_ACL_OTHER;
1120 entry->acl_state = -1;
1121 entry->acl_p = entry->acl_head;
1122 return (ARCHIVE_OK);
1128 while (entry->acl_p != NULL && (entry->acl_p->type & want_type) == 0)
1129 entry->acl_p = entry->acl_p->next;
1130 if (entry->acl_p == NULL) {
1131 entry->acl_state = 0;
1132 return (ARCHIVE_EOF); /* End of ACL entries. */
1134 *type = entry->acl_p->type;
1135 *permset = entry->acl_p->permset;
1136 *tag = entry->acl_p->tag;
1137 *id = entry->acl_p->id;
1138 *name = aes_get_mbs(&entry->acl_p->name);
1139 entry->acl_p = entry->acl_p->next;
1140 return (ARCHIVE_OK);
1144 * Generate a text version of the ACL. The flags parameter controls
1145 * the style of the generated ACL.
1148 archive_entry_acl_text_w(struct archive_entry *entry, int flags)
1152 const wchar_t *wname;
1153 const wchar_t *prefix;
1159 if (entry->acl_text_w != NULL) {
1160 free (entry->acl_text_w);
1161 entry->acl_text_w = NULL;
1167 ap = entry->acl_head;
1168 while (ap != NULL) {
1169 if ((ap->type & flags) != 0) {
1171 if ((flags & ARCHIVE_ENTRY_ACL_STYLE_MARK_DEFAULT) &&
1172 (ap->type & ARCHIVE_ENTRY_ACL_TYPE_DEFAULT))
1173 length += 8; /* "default:" */
1174 length += 5; /* tag name */
1175 length += 1; /* colon */
1176 wname = aes_get_wcs(&ap->name);
1178 length += wcslen(wname);
1180 length += sizeof(uid_t) * 3 + 1;
1181 length ++; /* colon */
1182 length += 3; /* rwx */
1183 length += 1; /* colon */
1184 length += max(sizeof(uid_t), sizeof(gid_t)) * 3 + 1;
1185 length ++; /* newline */
1190 if (count > 0 && ((flags & ARCHIVE_ENTRY_ACL_TYPE_ACCESS) != 0)) {
1191 length += 10; /* "user::rwx\n" */
1192 length += 11; /* "group::rwx\n" */
1193 length += 11; /* "other::rwx\n" */
1199 /* Now, allocate the string and actually populate it. */
1200 wp = entry->acl_text_w = (wchar_t *)malloc(length * sizeof(wchar_t));
1202 __archive_errx(1, "No memory to generate the text version of the ACL");
1204 if ((flags & ARCHIVE_ENTRY_ACL_TYPE_ACCESS) != 0) {
1205 append_entry_w(&wp, NULL, ARCHIVE_ENTRY_ACL_USER_OBJ, NULL,
1206 entry->ae_stat.st_mode & 0700, -1);
1208 append_entry_w(&wp, NULL, ARCHIVE_ENTRY_ACL_GROUP_OBJ, NULL,
1209 entry->ae_stat.st_mode & 0070, -1);
1211 append_entry_w(&wp, NULL, ARCHIVE_ENTRY_ACL_OTHER, NULL,
1212 entry->ae_stat.st_mode & 0007, -1);
1215 ap = entry->acl_head;
1216 while (ap != NULL) {
1217 if ((ap->type & ARCHIVE_ENTRY_ACL_TYPE_ACCESS) != 0) {
1218 wname = aes_get_wcs(&ap->name);
1220 if (flags & ARCHIVE_ENTRY_ACL_STYLE_EXTRA_ID)
1224 append_entry_w(&wp, NULL, ap->tag, wname,
1233 if ((flags & ARCHIVE_ENTRY_ACL_TYPE_DEFAULT) != 0) {
1234 if (flags & ARCHIVE_ENTRY_ACL_STYLE_MARK_DEFAULT)
1235 prefix = L"default:";
1238 ap = entry->acl_head;
1240 while (ap != NULL) {
1241 if ((ap->type & ARCHIVE_ENTRY_ACL_TYPE_DEFAULT) != 0) {
1242 wname = aes_get_wcs(&ap->name);
1245 if (flags & ARCHIVE_ENTRY_ACL_STYLE_EXTRA_ID)
1249 append_entry_w(&wp, prefix, ap->tag,
1250 wname, ap->permset, id);
1257 return (entry->acl_text_w);
1261 append_id_w(wchar_t **wp, int id)
1266 append_id_w(wp, id / 10);
1267 *(*wp)++ = L"0123456789"[id % 10];
1271 append_entry_w(wchar_t **wp, const wchar_t *prefix, int tag,
1272 const wchar_t *wname, int perm, int id)
1274 if (prefix != NULL) {
1275 wcscpy(*wp, prefix);
1279 case ARCHIVE_ENTRY_ACL_USER_OBJ:
1283 case ARCHIVE_ENTRY_ACL_USER:
1284 wcscpy(*wp, L"user");
1286 case ARCHIVE_ENTRY_ACL_GROUP_OBJ:
1290 case ARCHIVE_ENTRY_ACL_GROUP:
1291 wcscpy(*wp, L"group");
1293 case ARCHIVE_ENTRY_ACL_MASK:
1294 wcscpy(*wp, L"mask");
1298 case ARCHIVE_ENTRY_ACL_OTHER:
1299 wcscpy(*wp, L"other");
1306 if (wname != NULL) {
1309 } else if (tag == ARCHIVE_ENTRY_ACL_USER
1310 || tag == ARCHIVE_ENTRY_ACL_GROUP) {
1311 append_id_w(wp, id);
1315 *(*wp)++ = (perm & 0444) ? L'r' : L'-';
1316 *(*wp)++ = (perm & 0222) ? L'w' : L'-';
1317 *(*wp)++ = (perm & 0111) ? L'x' : L'-';
1320 append_id_w(wp, id);
1326 * Parse a textual ACL. This automatically recognizes and supports
1327 * extensions described above. The 'type' argument is used to
1328 * indicate the type that should be used for any entries not
1329 * explicitly marked as "default:".
1332 __archive_entry_acl_parse_w(struct archive_entry *entry,
1333 const wchar_t *text, int default_type)
1336 const wchar_t *start;
1341 int type, tag, permset, id;
1345 while (text != NULL && *text != L'\0') {
1347 * Parse the fields out of the next entry,
1348 * advance 'text' to start of next entry.
1352 const wchar_t *start, *end;
1353 next_field_w(&text, &start, &end, &sep);
1355 field[fields].start = start;
1356 field[fields].end = end;
1359 } while (sep == L':');
1362 return (ARCHIVE_WARN);
1364 /* Check for a numeric ID in field 1 or 3. */
1366 isint_w(field[1].start, field[1].end, &id);
1367 /* Field 3 is optional. */
1368 if (id == -1 && fields > 3)
1369 isint_w(field[3].start, field[3].end, &id);
1371 /* Parse the permissions from field 2. */
1374 while (p < field[2].end) {
1377 permset |= ARCHIVE_ENTRY_ACL_READ;
1380 permset |= ARCHIVE_ENTRY_ACL_WRITE;
1383 permset |= ARCHIVE_ENTRY_ACL_EXECUTE;
1388 return (ARCHIVE_WARN);
1393 * Solaris extension: "defaultuser::rwx" is the
1394 * default ACL corresponding to "user::rwx", etc.
1396 if (field[0].end-field[0].start > 7
1397 && wmemcmp(field[0].start, L"default", 7) == 0) {
1398 type = ARCHIVE_ENTRY_ACL_TYPE_DEFAULT;
1399 field[0].start += 7;
1401 type = default_type;
1403 if (prefix_w(field[0].start, field[0].end, L"user")) {
1404 if (id != -1 || field[1].start < field[1].end)
1405 tag = ARCHIVE_ENTRY_ACL_USER;
1407 tag = ARCHIVE_ENTRY_ACL_USER_OBJ;
1408 } else if (prefix_w(field[0].start, field[0].end, L"group")) {
1409 if (id != -1 || field[1].start < field[1].end)
1410 tag = ARCHIVE_ENTRY_ACL_GROUP;
1412 tag = ARCHIVE_ENTRY_ACL_GROUP_OBJ;
1413 } else if (prefix_w(field[0].start, field[0].end, L"other")) {
1414 if (id != -1 || field[1].start < field[1].end)
1415 return (ARCHIVE_WARN);
1416 tag = ARCHIVE_ENTRY_ACL_OTHER;
1417 } else if (prefix_w(field[0].start, field[0].end, L"mask")) {
1418 if (id != -1 || field[1].start < field[1].end)
1419 return (ARCHIVE_WARN);
1420 tag = ARCHIVE_ENTRY_ACL_MASK;
1422 return (ARCHIVE_WARN);
1424 /* Add entry to the internal list. */
1425 archive_entry_acl_add_entry_w_len(entry, type, permset,
1426 tag, id, field[1].start, field[1].end - field[1].start);
1428 return (ARCHIVE_OK);
1432 * extended attribute handling
1436 archive_entry_xattr_clear(struct archive_entry *entry)
1438 struct ae_xattr *xp;
1440 while (entry->xattr_head != NULL) {
1441 xp = entry->xattr_head->next;
1442 free(entry->xattr_head->name);
1443 free(entry->xattr_head->value);
1444 free(entry->xattr_head);
1445 entry->xattr_head = xp;
1448 entry->xattr_head = NULL;
1452 archive_entry_xattr_add_entry(struct archive_entry *entry,
1453 const char *name, const void *value, size_t size)
1455 struct ae_xattr *xp;
1457 for (xp = entry->xattr_head; xp != NULL; xp = xp->next)
1460 if ((xp = (struct ae_xattr *)malloc(sizeof(struct ae_xattr))) == NULL)
1464 xp->name = strdup(name);
1465 if ((xp->value = malloc(size)) != NULL) {
1466 memcpy(xp->value, value, size);
1471 xp->next = entry->xattr_head;
1472 entry->xattr_head = xp;
1477 * returns number of the extended attribute entries
1480 archive_entry_xattr_count(struct archive_entry *entry)
1482 struct ae_xattr *xp;
1485 for (xp = entry->xattr_head; xp != NULL; xp = xp->next)
1492 archive_entry_xattr_reset(struct archive_entry * entry)
1494 entry->xattr_p = entry->xattr_head;
1496 return archive_entry_xattr_count(entry);
1500 archive_entry_xattr_next(struct archive_entry * entry,
1501 const char **name, const void **value, size_t *size)
1503 if (entry->xattr_p) {
1504 *name = entry->xattr_p->name;
1505 *value = entry->xattr_p->value;
1506 *size = entry->xattr_p->size;
1508 entry->xattr_p = entry->xattr_p->next;
1510 return (ARCHIVE_OK);
1515 return (ARCHIVE_WARN);
1520 * end of xattr handling
1524 * Parse a string to a positive decimal integer. Returns true if
1525 * the string is non-empty and consists only of decimal digits,
1529 isint_w(const wchar_t *start, const wchar_t *end, int *result)
1534 while (start < end) {
1535 if (*start < '0' || *start > '9')
1537 if (n > (INT_MAX / 10))
1550 * Match "[:whitespace:]*(.*)[:whitespace:]*[:,\n]". *wp is updated
1551 * to point to just after the separator. *start points to the first
1552 * character of the matched text and *end just after the last
1553 * character of the matched identifier. In particular *end - *start
1554 * is the length of the field body, not including leading or trailing
1558 next_field_w(const wchar_t **wp, const wchar_t **start,
1559 const wchar_t **end, wchar_t *sep)
1561 /* Skip leading whitespace to find start of field. */
1562 while (**wp == L' ' || **wp == L'\t' || **wp == L'\n') {
1567 /* Scan for the separator. */
1568 while (**wp != L'\0' && **wp != L',' && **wp != L':' &&
1574 /* Trim trailing whitespace to locate end of field. */
1576 while (**end == L' ' || **end == L'\t' || **end == L'\n') {
1581 /* Adjust scanner location. */
1587 * Return true if the characters [start...end) are a prefix of 'test'.
1588 * This makes it easy to handle the obvious abbreviations: 'u' for 'user', etc.
1591 prefix_w(const wchar_t *start, const wchar_t *end, const wchar_t *test)
1596 if (*start++ != *test++)
1599 while (start < end && *start++ == *test++)
1610 * Following code is modified from UC Berkeley sources, and
1611 * is subject to the following copyright notice.
1615 * Copyright (c) 1993
1616 * The Regents of the University of California. All rights reserved.
1618 * Redistribution and use in source and binary forms, with or without
1619 * modification, are permitted provided that the following conditions
1621 * 1. Redistributions of source code must retain the above copyright
1622 * notice, this list of conditions and the following disclaimer.
1623 * 2. Redistributions in binary form must reproduce the above copyright
1624 * notice, this list of conditions and the following disclaimer in the
1625 * documentation and/or other materials provided with the distribution.
1626 * 4. Neither the name of the University nor the names of its contributors
1627 * may be used to endorse or promote products derived from this software
1628 * without specific prior written permission.
1630 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1631 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1632 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1633 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1634 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1635 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1636 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1637 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1638 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1639 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1643 static struct flag {
1645 const wchar_t *wname;
1647 unsigned long clear;
1649 /* Preferred (shorter) names per flag first, all prefixed by "no" */
1651 { "nosappnd", L"nosappnd", SF_APPEND, 0 },
1652 { "nosappend", L"nosappend", SF_APPEND, 0 },
1654 #ifdef EXT2_APPEND_FL /* 'a' */
1655 { "nosappnd", L"nosappnd", EXT2_APPEND_FL, 0 },
1656 { "nosappend", L"nosappend", EXT2_APPEND_FL, 0 },
1659 { "noarch", L"noarch", SF_ARCHIVED, 0 },
1660 { "noarchived", L"noarchived", SF_ARCHIVED, 0 },
1663 { "noschg", L"noschg", SF_IMMUTABLE, 0 },
1664 { "noschange", L"noschange", SF_IMMUTABLE, 0 },
1665 { "nosimmutable", L"nosimmutable", SF_IMMUTABLE, 0 },
1667 #ifdef EXT2_IMMUTABLE_FL /* 'i' */
1668 { "noschg", L"noschg", EXT2_IMMUTABLE_FL, 0 },
1669 { "noschange", L"noschange", EXT2_IMMUTABLE_FL, 0 },
1670 { "nosimmutable", L"nosimmutable", EXT2_IMMUTABLE_FL, 0 },
1673 { "nosunlnk", L"nosunlnk", SF_NOUNLINK, 0 },
1674 { "nosunlink", L"nosunlink", SF_NOUNLINK, 0 },
1677 { "nosnapshot", L"nosnapshot", SF_SNAPSHOT, 0 },
1680 { "nouappnd", L"nouappnd", UF_APPEND, 0 },
1681 { "nouappend", L"nouappend", UF_APPEND, 0 },
1684 { "nouchg", L"nouchg", UF_IMMUTABLE, 0 },
1685 { "nouchange", L"nouchange", UF_IMMUTABLE, 0 },
1686 { "nouimmutable", L"nouimmutable", UF_IMMUTABLE, 0 },
1689 { "nodump", L"nodump", 0, UF_NODUMP},
1691 #ifdef EXT2_NODUMP_FL /* 'd' */
1692 { "nodump", L"nodump", 0, EXT2_NODUMP_FL},
1695 { "noopaque", L"noopaque", UF_OPAQUE, 0 },
1698 { "nouunlnk", L"nouunlnk", UF_NOUNLINK, 0 },
1699 { "nouunlink", L"nouunlink", UF_NOUNLINK, 0 },
1701 #ifdef EXT2_COMPR_FL /* 'c' */
1702 { "nocompress", L"nocompress", EXT2_COMPR_FL, 0 },
1705 #ifdef EXT2_NOATIME_FL /* 'A' */
1706 { "noatime", L"noatime", 0, EXT2_NOATIME_FL},
1708 { NULL, NULL, 0, 0 }
1713 * Convert file flags to a comma-separated string. If no flags
1714 * are set, return the empty string.
1717 ae_fflagstostr(unsigned long bitset, unsigned long bitclear)
1725 bits = bitset | bitclear;
1727 for (flag = flags; flag->name != NULL; flag++)
1728 if (bits & (flag->set | flag->clear)) {
1729 length += strlen(flag->name) + 1;
1730 bits &= ~(flag->set | flag->clear);
1735 string = (char *)malloc(length);
1740 for (flag = flags; flag->name != NULL; flag++) {
1741 if (bitset & flag->set || bitclear & flag->clear) {
1742 sp = flag->name + 2;
1743 } else if (bitset & flag->clear || bitclear & flag->set) {
1747 bitset &= ~(flag->set | flag->clear);
1748 bitclear &= ~(flag->set | flag->clear);
1751 while ((*dp++ = *sp++) != '\0')
1762 * Take string of arguments and return file flags. This
1763 * version works a little differently than strtofflags(3).
1764 * In particular, it always tests every token, skipping any
1765 * unrecognized tokens. It returns a pointer to the first
1766 * unrecognized token, or NULL if every token was recognized.
1767 * This version is also const-correct and does not modify the
1771 ae_wcstofflags(const wchar_t *s, unsigned long *setp, unsigned long *clrp)
1773 const wchar_t *start, *end;
1775 unsigned long set, clear;
1776 const wchar_t *failed;
1781 /* Find start of first token. */
1782 while (*start == L'\t' || *start == L' ' || *start == L',')
1784 while (*start != L'\0') {
1785 /* Locate end of token. */
1787 while (*end != L'\0' && *end != L'\t' &&
1788 *end != L' ' && *end != L',')
1790 for (flag = flags; flag->wname != NULL; flag++) {
1791 if (wmemcmp(start, flag->wname, end - start) == 0) {
1792 /* Matched "noXXXX", so reverse the sense. */
1796 } else if (wmemcmp(start, flag->wname + 2, end - start)
1798 /* Matched "XXXX", so don't reverse. */
1800 clear |= flag->clear;
1804 /* Ignore unknown flag names. */
1805 if (flag->wname == NULL && failed == NULL)
1808 /* Find start of next token. */
1810 while (*start == L'\t' || *start == L' ' || *start == L',')
1820 /* Return location of first failure. */
1828 main(int argc, char **argv)
1830 struct archive_entry *entry = archive_entry_new();
1831 unsigned long set, clear;
1832 const wchar_t *remainder;
1834 remainder = archive_entry_copy_fflags_text_w(entry, L"nosappnd dump archive,,,,,,,");
1835 archive_entry_fflags(entry, &set, &clear);
1837 wprintf(L"set=0x%lX clear=0x%lX remainder='%ls'\n", set, clear, remainder);
1839 wprintf(L"new flags='%s'\n", archive_entry_fflags_text(entry));