1 /* GIO - GLib Input, Output and Streaming Library
2 *
3 * Copyright (C) 2006-2007 Red Hat, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
17 *
18 * Author: Alexander Larsson <alexl@redhat.com>
19 */
20
21 #include "config.h"
22
23 #include <sys/types.h>
24 #include <sys/stat.h>
25 #include <string.h>
26 #include <errno.h>
27 #include <fcntl.h>
28 #if G_OS_UNIX
29 #include <dirent.h>
30 #include <unistd.h>
31 #endif
32
33 #if HAVE_SYS_STATFS_H
34 #include <sys/statfs.h>
35 #endif
36 #if HAVE_SYS_STATVFS_H
37 #include <sys/statvfs.h>
38 #endif
39 #if HAVE_SYS_VFS_H
40 #include <sys/vfs.h>
41 #elif HAVE_SYS_MOUNT_H
42 #if HAVE_SYS_PARAM_H
43 #include <sys/param.h>
44 #endif
45 #include <sys/mount.h>
46 #endif
47
48 #ifndef O_BINARY
49 #define O_BINARY 0
50 #endif
51
52 #include "gfileattribute.h"
53 #include "glocalfile.h"
54 #include "glocalfileinfo.h"
55 #include "glocalfileenumerator.h"
56 #include "glocalfileinputstream.h"
57 #include "glocalfileoutputstream.h"
58 #include "glocalfileiostream.h"
59 #include "glocalfilemonitor.h"
60 #include "gmountprivate.h"
61 #include "gunixmounts.h"
62 #include "gioerror.h"
63 #include <glib/gstdio.h>
64 #include <glib/gstdioprivate.h>
65 #include "glibintl.h"
66 #ifdef G_OS_UNIX
67 #include "glib-unix.h"
68 #include "gportalsupport.h"
69 #include "gtrashportal.h"
70 #endif
71
72 #include "glib-private.h"
73
74 #ifdef G_OS_WIN32
75 #include <windows.h>
76 #include <io.h>
77 #include <direct.h>
78
79 #ifndef FILE_READ_ONLY_VOLUME
80 #define FILE_READ_ONLY_VOLUME 0x00080000
81 #endif
82
83 #ifndef S_ISDIR
84 #define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
85 #endif
86 #ifndef S_ISLNK
87 #define S_ISLNK(m) (0)
88 #endif
89
90 #ifndef ECANCELED
91 #define ECANCELED 105
92 #endif
93 #endif
94
95
96 static void g_local_file_file_iface_init (GFileIface *iface);
97
98 static GFileAttributeInfoList *local_writable_attributes = NULL;
99 static /* GFileAttributeInfoList * */ gsize local_writable_namespaces = 0;
100
101 struct _GLocalFile
102 {
103 GObject parent_instance;
104
105 char *filename;
106 };
107
108 #define g_local_file_get_type _g_local_file_get_type
109 G_DEFINE_TYPE_WITH_CODE (GLocalFile, g_local_file, G_TYPE_OBJECT,
110 G_IMPLEMENT_INTERFACE (G_TYPE_FILE,
111 g_local_file_file_iface_init))
112
113 static char *find_mountpoint_for (const char *file, dev_t dev, gboolean resolve_basename_symlink);
114
115 #ifndef G_OS_WIN32
116 static gboolean is_remote_fs_type (const gchar *fsname);
117 #endif
118
119 static void
g_local_file_finalize(GObject * object)120 g_local_file_finalize (GObject *object)
121 {
122 GLocalFile *local;
123
124 local = G_LOCAL_FILE (object);
125
126 g_free (local->filename);
127
128 G_OBJECT_CLASS (g_local_file_parent_class)->finalize (object);
129 }
130
131 static void
g_local_file_class_init(GLocalFileClass * klass)132 g_local_file_class_init (GLocalFileClass *klass)
133 {
134 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
135 GFileAttributeInfoList *list;
136
137 gobject_class->finalize = g_local_file_finalize;
138
139 /* Set up attribute lists */
140
141 /* Writable attributes: */
142
143 list = g_file_attribute_info_list_new ();
144
145 g_file_attribute_info_list_add (list,
146 G_FILE_ATTRIBUTE_UNIX_MODE,
147 G_FILE_ATTRIBUTE_TYPE_UINT32,
148 G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
149 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
150
151 #ifdef G_OS_UNIX
152 g_file_attribute_info_list_add (list,
153 G_FILE_ATTRIBUTE_UNIX_UID,
154 G_FILE_ATTRIBUTE_TYPE_UINT32,
155 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
156 g_file_attribute_info_list_add (list,
157 G_FILE_ATTRIBUTE_UNIX_GID,
158 G_FILE_ATTRIBUTE_TYPE_UINT32,
159 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
160 #endif
161
162 #ifdef HAVE_SYMLINK
163 g_file_attribute_info_list_add (list,
164 G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET,
165 G_FILE_ATTRIBUTE_TYPE_BYTE_STRING,
166 0);
167 #endif
168
169 #ifdef HAVE_UTIMES
170 g_file_attribute_info_list_add (list,
171 G_FILE_ATTRIBUTE_TIME_MODIFIED,
172 G_FILE_ATTRIBUTE_TYPE_UINT64,
173 G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
174 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
175 g_file_attribute_info_list_add (list,
176 G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC,
177 G_FILE_ATTRIBUTE_TYPE_UINT32,
178 G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
179 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
180 /* When copying, the target file is accessed. Replicating
181 * the source access time does not make sense in this case.
182 */
183 g_file_attribute_info_list_add (list,
184 G_FILE_ATTRIBUTE_TIME_ACCESS,
185 G_FILE_ATTRIBUTE_TYPE_UINT64,
186 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
187 g_file_attribute_info_list_add (list,
188 G_FILE_ATTRIBUTE_TIME_ACCESS_USEC,
189 G_FILE_ATTRIBUTE_TYPE_UINT32,
190 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
191 #endif
192
193 local_writable_attributes = list;
194 }
195
196 static void
g_local_file_init(GLocalFile * local)197 g_local_file_init (GLocalFile *local)
198 {
199 }
200
201 const char *
_g_local_file_get_filename(GLocalFile * file)202 _g_local_file_get_filename (GLocalFile *file)
203 {
204 return file->filename;
205 }
206
207 GFile *
_g_local_file_new(const char * filename)208 _g_local_file_new (const char *filename)
209 {
210 GLocalFile *local;
211
212 local = g_object_new (G_TYPE_LOCAL_FILE, NULL);
213 local->filename = g_canonicalize_filename (filename, NULL);
214
215 return G_FILE (local);
216 }
217
218 /*< internal >
219 * g_local_file_new_from_dirname_and_basename:
220 * @dirname: an absolute, canonical directory name
221 * @basename: the name of a child inside @dirname
222 *
223 * Creates a #GFile from @dirname and @basename.
224 *
225 * This is more efficient than pasting the fields together for yourself
226 * and creating a #GFile from the result, and also more efficient than
227 * creating a #GFile for the dirname and using g_file_get_child().
228 *
229 * @dirname must be canonical, as per GLocalFile's opinion of what
230 * canonical means. This means that you should only pass strings that
231 * were returned by _g_local_file_get_filename().
232 *
233 * Returns: a #GFile
234 */
235 GFile *
g_local_file_new_from_dirname_and_basename(const gchar * dirname,const gchar * basename)236 g_local_file_new_from_dirname_and_basename (const gchar *dirname,
237 const gchar *basename)
238 {
239 GLocalFile *local;
240
241 g_return_val_if_fail (dirname != NULL, NULL);
242 g_return_val_if_fail (basename && basename[0] && !strchr (basename, '/'), NULL);
243
244 local = g_object_new (G_TYPE_LOCAL_FILE, NULL);
245 local->filename = g_build_filename (dirname, basename, NULL);
246
247 return G_FILE (local);
248 }
249
250 static gboolean
g_local_file_is_native(GFile * file)251 g_local_file_is_native (GFile *file)
252 {
253 return TRUE;
254 }
255
256 static gboolean
g_local_file_has_uri_scheme(GFile * file,const char * uri_scheme)257 g_local_file_has_uri_scheme (GFile *file,
258 const char *uri_scheme)
259 {
260 return g_ascii_strcasecmp (uri_scheme, "file") == 0;
261 }
262
263 static char *
g_local_file_get_uri_scheme(GFile * file)264 g_local_file_get_uri_scheme (GFile *file)
265 {
266 return g_strdup ("file");
267 }
268
269 static char *
g_local_file_get_basename(GFile * file)270 g_local_file_get_basename (GFile *file)
271 {
272 return g_path_get_basename (G_LOCAL_FILE (file)->filename);
273 }
274
275 static char *
g_local_file_get_path(GFile * file)276 g_local_file_get_path (GFile *file)
277 {
278 return g_strdup (G_LOCAL_FILE (file)->filename);
279 }
280
281 static char *
g_local_file_get_uri(GFile * file)282 g_local_file_get_uri (GFile *file)
283 {
284 return g_filename_to_uri (G_LOCAL_FILE (file)->filename, NULL, NULL);
285 }
286
287 static gboolean
get_filename_charset(const gchar ** filename_charset)288 get_filename_charset (const gchar **filename_charset)
289 {
290 const gchar **charsets;
291 gboolean is_utf8;
292
293 is_utf8 = g_get_filename_charsets (&charsets);
294
295 if (filename_charset)
296 *filename_charset = charsets[0];
297
298 return is_utf8;
299 }
300
301 static gboolean
name_is_valid_for_display(const char * string,gboolean is_valid_utf8)302 name_is_valid_for_display (const char *string,
303 gboolean is_valid_utf8)
304 {
305 char c;
306
307 if (!is_valid_utf8 &&
308 !g_utf8_validate (string, -1, NULL))
309 return FALSE;
310
311 while ((c = *string++) != 0)
312 {
313 if (g_ascii_iscntrl (c))
314 return FALSE;
315 }
316
317 return TRUE;
318 }
319
320 static char *
g_local_file_get_parse_name(GFile * file)321 g_local_file_get_parse_name (GFile *file)
322 {
323 const char *filename;
324 char *parse_name;
325 const gchar *charset;
326 char *utf8_filename;
327 char *roundtripped_filename;
328 gboolean free_utf8_filename;
329 gboolean is_valid_utf8;
330 char *escaped_path;
331
332 filename = G_LOCAL_FILE (file)->filename;
333 if (get_filename_charset (&charset))
334 {
335 utf8_filename = (char *)filename;
336 free_utf8_filename = FALSE;
337 is_valid_utf8 = FALSE; /* Can't guarantee this */
338 }
339 else
340 {
341 utf8_filename = g_convert (filename, -1,
342 "UTF-8", charset, NULL, NULL, NULL);
343 free_utf8_filename = TRUE;
344 is_valid_utf8 = TRUE;
345
346 if (utf8_filename != NULL)
347 {
348 /* Make sure we can roundtrip: */
349 roundtripped_filename = g_convert (utf8_filename, -1,
350 charset, "UTF-8", NULL, NULL, NULL);
351
352 if (roundtripped_filename == NULL ||
353 strcmp (filename, roundtripped_filename) != 0)
354 {
355 g_free (utf8_filename);
356 utf8_filename = NULL;
357 }
358
359 g_free (roundtripped_filename);
360 }
361 }
362
363 if (utf8_filename != NULL &&
364 name_is_valid_for_display (utf8_filename, is_valid_utf8))
365 {
366 if (free_utf8_filename)
367 parse_name = utf8_filename;
368 else
369 parse_name = g_strdup (utf8_filename);
370 }
371 else
372 {
373 #ifdef G_OS_WIN32
374 char *dup_filename, *p, *backslash;
375
376 /* Turn backslashes into forward slashes like
377 * g_filename_to_uri() would do (but we can't use that because
378 * it doesn't output IRIs).
379 */
380 dup_filename = g_strdup (filename);
381 filename = p = dup_filename;
382
383 while ((backslash = strchr (p, '\\')) != NULL)
384 {
385 *backslash = '/';
386 p = backslash + 1;
387 }
388 #endif
389
390 escaped_path = g_uri_escape_string (filename,
391 G_URI_RESERVED_CHARS_ALLOWED_IN_PATH_ELEMENT "/",
392 TRUE);
393 parse_name = g_strconcat ("file://",
394 (*escaped_path != '/') ? "/" : "",
395 escaped_path,
396 NULL);
397
398 g_free (escaped_path);
399 #ifdef G_OS_WIN32
400 g_free (dup_filename);
401 #endif
402 if (free_utf8_filename)
403 g_free (utf8_filename);
404 }
405
406 return parse_name;
407 }
408
409 static GFile *
g_local_file_get_parent(GFile * file)410 g_local_file_get_parent (GFile *file)
411 {
412 GLocalFile *local = G_LOCAL_FILE (file);
413 const char *non_root;
414 char *dirname;
415 GFile *parent;
416
417 /* Check for root; local->filename is guaranteed to be absolute, so
418 * g_path_skip_root() should never return NULL. */
419 non_root = g_path_skip_root (local->filename);
420 g_assert (non_root != NULL);
421
422 if (*non_root == 0)
423 return NULL;
424
425 dirname = g_path_get_dirname (local->filename);
426 parent = _g_local_file_new (dirname);
427 g_free (dirname);
428 return parent;
429 }
430
431 static GFile *
g_local_file_dup(GFile * file)432 g_local_file_dup (GFile *file)
433 {
434 GLocalFile *local = G_LOCAL_FILE (file);
435
436 return _g_local_file_new (local->filename);
437 }
438
439 static guint
g_local_file_hash(GFile * file)440 g_local_file_hash (GFile *file)
441 {
442 GLocalFile *local = G_LOCAL_FILE (file);
443
444 return g_str_hash (local->filename);
445 }
446
447 static gboolean
g_local_file_equal(GFile * file1,GFile * file2)448 g_local_file_equal (GFile *file1,
449 GFile *file2)
450 {
451 GLocalFile *local1 = G_LOCAL_FILE (file1);
452 GLocalFile *local2 = G_LOCAL_FILE (file2);
453
454 return g_str_equal (local1->filename, local2->filename);
455 }
456
457 static const char *
match_prefix(const char * path,const char * prefix)458 match_prefix (const char *path,
459 const char *prefix)
460 {
461 int prefix_len;
462
463 prefix_len = strlen (prefix);
464 if (strncmp (path, prefix, prefix_len) != 0)
465 return NULL;
466
467 /* Handle the case where prefix is the root, so that
468 * the IS_DIR_SEPRARATOR check below works */
469 if (prefix_len > 0 &&
470 G_IS_DIR_SEPARATOR (prefix[prefix_len-1]))
471 prefix_len--;
472
473 return path + prefix_len;
474 }
475
476 static gboolean
g_local_file_prefix_matches(GFile * parent,GFile * descendant)477 g_local_file_prefix_matches (GFile *parent,
478 GFile *descendant)
479 {
480 GLocalFile *parent_local = G_LOCAL_FILE (parent);
481 GLocalFile *descendant_local = G_LOCAL_FILE (descendant);
482 const char *remainder;
483
484 remainder = match_prefix (descendant_local->filename, parent_local->filename);
485 if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
486 return TRUE;
487 return FALSE;
488 }
489
490 static char *
g_local_file_get_relative_path(GFile * parent,GFile * descendant)491 g_local_file_get_relative_path (GFile *parent,
492 GFile *descendant)
493 {
494 GLocalFile *parent_local = G_LOCAL_FILE (parent);
495 GLocalFile *descendant_local = G_LOCAL_FILE (descendant);
496 const char *remainder;
497
498 remainder = match_prefix (descendant_local->filename, parent_local->filename);
499
500 if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
501 return g_strdup (remainder + 1);
502 return NULL;
503 }
504
505 static GFile *
g_local_file_resolve_relative_path(GFile * file,const char * relative_path)506 g_local_file_resolve_relative_path (GFile *file,
507 const char *relative_path)
508 {
509 GLocalFile *local = G_LOCAL_FILE (file);
510 char *filename;
511 GFile *child;
512
513 if (g_path_is_absolute (relative_path))
514 return _g_local_file_new (relative_path);
515
516 filename = g_build_filename (local->filename, relative_path, NULL);
517 child = _g_local_file_new (filename);
518 g_free (filename);
519
520 return child;
521 }
522
523 static GFileEnumerator *
g_local_file_enumerate_children(GFile * file,const char * attributes,GFileQueryInfoFlags flags,GCancellable * cancellable,GError ** error)524 g_local_file_enumerate_children (GFile *file,
525 const char *attributes,
526 GFileQueryInfoFlags flags,
527 GCancellable *cancellable,
528 GError **error)
529 {
530 GLocalFile *local = G_LOCAL_FILE (file);
531 return _g_local_file_enumerator_new (local,
532 attributes, flags,
533 cancellable, error);
534 }
535
536 static GFile *
g_local_file_get_child_for_display_name(GFile * file,const char * display_name,GError ** error)537 g_local_file_get_child_for_display_name (GFile *file,
538 const char *display_name,
539 GError **error)
540 {
541 GFile *new_file;
542 char *basename;
543
544 basename = g_filename_from_utf8 (display_name, -1, NULL, NULL, NULL);
545 if (basename == NULL)
546 {
547 g_set_error (error, G_IO_ERROR,
548 G_IO_ERROR_INVALID_FILENAME,
549 _("Invalid filename %s"), display_name);
550 return NULL;
551 }
552
553 new_file = g_file_get_child (file, basename);
554 g_free (basename);
555
556 return new_file;
557 }
558
559 #if defined(USE_STATFS) && !defined(HAVE_STRUCT_STATFS_F_FSTYPENAME)
560 static const char *
get_fs_type(long f_type)561 get_fs_type (long f_type)
562 {
563 /* filesystem ids taken from linux manpage */
564 switch (f_type)
565 {
566 case 0xadf5:
567 return "adfs";
568 case 0x5346414f:
569 return "afs";
570 case 0x0187:
571 return "autofs";
572 case 0xADFF:
573 return "affs";
574 case 0x62646576:
575 return "bdevfs";
576 case 0x42465331:
577 return "befs";
578 case 0x1BADFACE:
579 return "bfs";
580 case 0x42494e4d:
581 return "binfmt_misc";
582 case 0x9123683E:
583 return "btrfs";
584 case 0x73727279:
585 return "btrfs_test_fs";
586 case 0x27e0eb:
587 return "cgroup";
588 case 0x63677270:
589 return "cgroup2";
590 case 0xFF534D42:
591 return "cifs";
592 case 0x73757245:
593 return "coda";
594 case 0x012FF7B7:
595 return "coh";
596 case 0x62656570:
597 return "configfs";
598 case 0x28cd3d45:
599 return "cramfs";
600 case 0x64626720:
601 return "debugfs";
602 case 0x1373:
603 return "devfs";
604 case 0x1cd1:
605 return "devpts";
606 case 0xf15f:
607 return "ecryptfs";
608 case 0xde5e81e4:
609 return "efivarfs";
610 case 0x00414A53:
611 return "efs";
612 case 0x137D:
613 return "ext";
614 case 0xEF51:
615 return "ext2";
616 case 0xEF53:
617 return "ext3/ext4";
618 case 0xF2F52010:
619 return "f2fs";
620 case 0x65735546:
621 return "fuse";
622 case 0x65735543:
623 return "fusectl";
624 case 0xBAD1DEA:
625 return "futexfs";
626 case 0x4244:
627 return "hfs";
628 case 0x00c0ffee:
629 return "hostfs";
630 case 0xF995E849:
631 return "hpfs";
632 case 0x958458f6:
633 return "hugetlbfs";
634 case 0x9660:
635 return "isofs";
636 case 0x72b6:
637 return "jffs2";
638 case 0x3153464a:
639 return "jfs";
640 case 0x137F:
641 return "minix";
642 case 0x138F:
643 return "minix2";
644 case 0x2468:
645 return "minix2";
646 case 0x2478:
647 return "minix22";
648 case 0x4d5a:
649 return "minix3";
650 case 0x19800202:
651 return "mqueue";
652 case 0x4d44:
653 return "msdos";
654 case 0x564c:
655 return "ncp";
656 case 0x6969:
657 return "nfs";
658 case 0x3434:
659 return "nilfs";
660 case 0x6e736673:
661 return "nsfs";
662 case 0x5346544e:
663 return "ntfs";
664 case 0x7461636f:
665 return "ocfs2";
666 case 0x9fa1:
667 return "openprom";
668 case 0x794c7630:
669 return "overlay";
670 case 0x50495045:
671 return "pipefs";
672 case 0x9fa0:
673 return "proc";
674 case 0x6165676C:
675 return "pstore";
676 case 0x002f:
677 return "qnx4";
678 case 0x68191122:
679 return "qnx6";
680 case 0x858458f6:
681 return "ramfs";
682 case 0x52654973:
683 return "reiserfs";
684 case 0x7275:
685 return "romfs";
686 case 0x67596969:
687 return "rpc_pipefs";
688 case 0x73636673:
689 return "securityfs";
690 case 0xf97cff8c:
691 return "selinuxfs";
692 case 0x43415d53:
693 return "smackfs";
694 case 0x517B:
695 return "smb";
696 case 0xfe534d42:
697 return "smb2";
698 case 0x534F434B:
699 return "sockfs";
700 case 0x73717368:
701 return "squashfs";
702 case 0x62656572:
703 return "sysfs";
704 case 0x012FF7B6:
705 return "sysv2";
706 case 0x012FF7B5:
707 return "sysv4";
708 case 0x01021994:
709 return "tmpfs";
710 case 0x74726163:
711 return "tracefs";
712 case 0x15013346:
713 return "udf";
714 case 0x00011954:
715 return "ufs";
716 case 0x9fa2:
717 return "usbdevice";
718 case 0x01021997:
719 return "v9fs";
720 case 0xa501FCF5:
721 return "vxfs";
722 case 0xabba1974:
723 return "xenfs";
724 case 0x012FF7B4:
725 return "xenix";
726 case 0x58465342:
727 return "xfs";
728 case 0x012FD16D:
729 return "xiafs";
730 case 0x52345362:
731 return "reiser4";
732 default:
733 return NULL;
734 }
735 }
736 #endif
737
738 #ifndef G_OS_WIN32
739
740 G_LOCK_DEFINE_STATIC(mount_info_hash);
741 static GHashTable *mount_info_hash = NULL;
742 static guint64 mount_info_hash_cache_time = 0;
743
744 typedef enum {
745 MOUNT_INFO_READONLY = 1<<0
746 } MountInfo;
747
748 static gboolean
device_equal(gconstpointer v1,gconstpointer v2)749 device_equal (gconstpointer v1,
750 gconstpointer v2)
751 {
752 return *(dev_t *)v1 == *(dev_t *)v2;
753 }
754
755 static guint
device_hash(gconstpointer v)756 device_hash (gconstpointer v)
757 {
758 return (guint) *(dev_t *)v;
759 }
760
761 static void
get_mount_info(GFileInfo * fs_info,const char * path,GFileAttributeMatcher * matcher)762 get_mount_info (GFileInfo *fs_info,
763 const char *path,
764 GFileAttributeMatcher *matcher)
765 {
766 GStatBuf buf;
767 gboolean got_info;
768 gpointer info_as_ptr;
769 guint mount_info;
770 char *mountpoint;
771 dev_t *dev;
772 GUnixMountEntry *mount;
773 guint64 cache_time;
774
775 if (g_lstat (path, &buf) != 0)
776 return;
777
778 G_LOCK (mount_info_hash);
779
780 if (mount_info_hash == NULL)
781 mount_info_hash = g_hash_table_new_full (device_hash, device_equal,
782 g_free, NULL);
783
784
785 if (g_unix_mounts_changed_since (mount_info_hash_cache_time))
786 g_hash_table_remove_all (mount_info_hash);
787
788 got_info = g_hash_table_lookup_extended (mount_info_hash,
789 &buf.st_dev,
790 NULL,
791 &info_as_ptr);
792
793 G_UNLOCK (mount_info_hash);
794
795 mount_info = GPOINTER_TO_UINT (info_as_ptr);
796
797 if (!got_info)
798 {
799 mount_info = 0;
800
801 mountpoint = find_mountpoint_for (path, buf.st_dev, FALSE);
802 if (mountpoint == NULL)
803 mountpoint = g_strdup ("/");
804
805 mount = g_unix_mount_at (mountpoint, &cache_time);
806 if (mount)
807 {
808 if (g_unix_mount_is_readonly (mount))
809 mount_info |= MOUNT_INFO_READONLY;
810
811 g_unix_mount_free (mount);
812 }
813
814 g_free (mountpoint);
815
816 dev = g_new0 (dev_t, 1);
817 *dev = buf.st_dev;
818
819 G_LOCK (mount_info_hash);
820 mount_info_hash_cache_time = cache_time;
821 g_hash_table_insert (mount_info_hash, dev, GUINT_TO_POINTER (mount_info));
822 G_UNLOCK (mount_info_hash);
823 }
824
825 if (mount_info & MOUNT_INFO_READONLY)
826 g_file_info_set_attribute_boolean (fs_info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, TRUE);
827 }
828
829 #endif
830
831 #ifdef G_OS_WIN32
832
833 static wchar_t *
get_volume_for_path(const char * path)834 get_volume_for_path (const char *path)
835 {
836 long len;
837 wchar_t *wpath;
838 wchar_t *result;
839
840 wpath = g_utf8_to_utf16 (path, -1, NULL, NULL, NULL);
841 result = g_new (wchar_t, MAX_PATH);
842
843 if (!GetVolumePathNameW (wpath, result, MAX_PATH))
844 {
845 char *msg = g_win32_error_message (GetLastError ());
846 g_critical ("GetVolumePathName failed: %s", msg);
847 g_free (msg);
848 g_free (result);
849 g_free (wpath);
850 return NULL;
851 }
852
853 len = wcslen (result);
854 if (len > 0 && result[len-1] != L'\\')
855 {
856 result = g_renew (wchar_t, result, len + 2);
857 result[len] = L'\\';
858 result[len + 1] = 0;
859 }
860
861 g_free (wpath);
862 return result;
863 }
864
865 static char *
find_mountpoint_for(const char * file,dev_t dev,gboolean resolve_basename_symlink)866 find_mountpoint_for (const char *file, dev_t dev, gboolean resolve_basename_symlink)
867 {
868 wchar_t *wpath;
869 char *utf8_path;
870
871 wpath = get_volume_for_path (file);
872 if (!wpath)
873 return NULL;
874
875 utf8_path = g_utf16_to_utf8 (wpath, -1, NULL, NULL, NULL);
876
877 g_free (wpath);
878 return utf8_path;
879 }
880
881 static void
get_filesystem_readonly(GFileInfo * info,const char * path)882 get_filesystem_readonly (GFileInfo *info,
883 const char *path)
884 {
885 wchar_t *rootdir;
886
887 rootdir = get_volume_for_path (path);
888
889 if (rootdir)
890 {
891 DWORD flags;
892 if (GetVolumeInformationW (rootdir, NULL, 0, NULL, NULL, &flags, NULL, 0))
893 g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY,
894 (flags & FILE_READ_ONLY_VOLUME) != 0);
895 }
896
897 g_free (rootdir);
898 }
899
900 #endif /* G_OS_WIN32 */
901
902 #pragma GCC diagnostic push
903 #pragma GCC diagnostic ignored "-Wformat-nonliteral"
904 static void
g_set_io_error(GError ** error,const gchar * msg,GFile * file,gint errsv)905 g_set_io_error (GError **error,
906 const gchar *msg,
907 GFile *file,
908 gint errsv)
909 {
910 GLocalFile *local = G_LOCAL_FILE (file);
911 gchar *display_name;
912
913 display_name = g_filename_display_name (local->filename);
914 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv),
915 msg, display_name, g_strerror (errsv));
916 g_free (display_name);
917 }
918 #pragma GCC diagnostic pop
919
920 static GFileInfo *
g_local_file_query_filesystem_info(GFile * file,const char * attributes,GCancellable * cancellable,GError ** error)921 g_local_file_query_filesystem_info (GFile *file,
922 const char *attributes,
923 GCancellable *cancellable,
924 GError **error)
925 {
926 GLocalFile *local = G_LOCAL_FILE (file);
927 GFileInfo *info;
928 int statfs_result = 0;
929 gboolean no_size;
930 #ifndef G_OS_WIN32
931 const char *fstype;
932 #ifdef USE_STATFS
933 guint64 block_size;
934 struct statfs statfs_buffer;
935 #elif defined(USE_STATVFS)
936 guint64 block_size;
937 struct statvfs statfs_buffer;
938 #endif /* USE_STATFS */
939 #endif /* G_OS_WIN32 */
940 GFileAttributeMatcher *attribute_matcher;
941
942 no_size = FALSE;
943
944 #ifdef USE_STATFS
945
946 #if STATFS_ARGS == 2
947 statfs_result = statfs (local->filename, &statfs_buffer);
948 #elif STATFS_ARGS == 4
949 statfs_result = statfs (local->filename, &statfs_buffer,
950 sizeof (statfs_buffer), 0);
951 #endif /* STATFS_ARGS == 2 */
952 block_size = statfs_buffer.f_bsize;
953
954 /* Many backends can't report free size (for instance the gvfs fuse
955 * backend for backend not supporting this), and set f_bfree to 0,
956 * but it can be 0 for real too. We treat the available == 0 and
957 * free == 0 case as "both of these are invalid", but only on file systems
958 * which are known to not support this (otherwise we can omit metadata for
959 * systems which are legitimately full). */
960 #if defined(__linux__)
961 if (statfs_result == 0 &&
962 statfs_buffer.f_bavail == 0 && statfs_buffer.f_bfree == 0 &&
963 (/* linux/ncp_fs.h: NCP_SUPER_MAGIC == 0x564c */
964 statfs_buffer.f_type == 0x564c ||
965 /* man statfs: FUSE_SUPER_MAGIC == 0x65735546 */
966 statfs_buffer.f_type == 0x65735546))
967 no_size = TRUE;
968 #endif /* __linux__ */
969
970 #elif defined(USE_STATVFS)
971 statfs_result = statvfs (local->filename, &statfs_buffer);
972 block_size = statfs_buffer.f_frsize;
973 #endif /* USE_STATFS */
974
975 if (statfs_result == -1)
976 {
977 int errsv = errno;
978
979 g_set_io_error (error,
980 _("Error getting filesystem info for %s: %s"),
981 file, errsv);
982 return NULL;
983 }
984
985 info = g_file_info_new ();
986
987 attribute_matcher = g_file_attribute_matcher_new (attributes);
988
989 if (!no_size &&
990 g_file_attribute_matcher_matches (attribute_matcher,
991 G_FILE_ATTRIBUTE_FILESYSTEM_FREE))
992 {
993 #ifdef G_OS_WIN32
994 gchar *localdir = g_path_get_dirname (local->filename);
995 wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
996 ULARGE_INTEGER li;
997
998 g_free (localdir);
999 if (GetDiskFreeSpaceExW (wdirname, &li, NULL, NULL))
1000 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, (guint64)li.QuadPart);
1001 g_free (wdirname);
1002 #else
1003 #if defined(USE_STATFS) || defined(USE_STATVFS)
1004 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, block_size * statfs_buffer.f_bavail);
1005 #endif
1006 #endif
1007 }
1008 if (!no_size &&
1009 g_file_attribute_matcher_matches (attribute_matcher,
1010 G_FILE_ATTRIBUTE_FILESYSTEM_SIZE))
1011 {
1012 #ifdef G_OS_WIN32
1013 gchar *localdir = g_path_get_dirname (local->filename);
1014 wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
1015 ULARGE_INTEGER li;
1016
1017 g_free (localdir);
1018 if (GetDiskFreeSpaceExW (wdirname, NULL, &li, NULL))
1019 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, (guint64)li.QuadPart);
1020 g_free (wdirname);
1021 #else
1022 #if defined(USE_STATFS) || defined(USE_STATVFS)
1023 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, block_size * statfs_buffer.f_blocks);
1024 #endif
1025 #endif /* G_OS_WIN32 */
1026 }
1027
1028 if (!no_size &&
1029 g_file_attribute_matcher_matches (attribute_matcher,
1030 G_FILE_ATTRIBUTE_FILESYSTEM_USED))
1031 {
1032 #ifdef G_OS_WIN32
1033 gchar *localdir = g_path_get_dirname (local->filename);
1034 wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
1035 ULARGE_INTEGER li_free;
1036 ULARGE_INTEGER li_total;
1037
1038 g_free (localdir);
1039 if (GetDiskFreeSpaceExW (wdirname, &li_free, &li_total, NULL))
1040 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_USED, (guint64)li_total.QuadPart - (guint64)li_free.QuadPart);
1041 g_free (wdirname);
1042 #else
1043 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_USED, block_size * (statfs_buffer.f_blocks - statfs_buffer.f_bfree));
1044 #endif /* G_OS_WIN32 */
1045 }
1046
1047 #ifndef G_OS_WIN32
1048 #ifdef USE_STATFS
1049 #if defined(HAVE_STRUCT_STATFS_F_FSTYPENAME)
1050 fstype = statfs_buffer.f_fstypename;
1051 #else
1052 fstype = get_fs_type (statfs_buffer.f_type);
1053 #endif
1054
1055 #elif defined(USE_STATVFS)
1056 #if defined(HAVE_STRUCT_STATVFS_F_FSTYPENAME)
1057 fstype = statfs_buffer.f_fstypename;
1058 #elif defined(HAVE_STRUCT_STATVFS_F_BASETYPE)
1059 fstype = statfs_buffer.f_basetype;
1060 #else
1061 fstype = NULL;
1062 #endif
1063 #endif /* USE_STATFS */
1064
1065 if (fstype &&
1066 g_file_attribute_matcher_matches (attribute_matcher,
1067 G_FILE_ATTRIBUTE_FILESYSTEM_TYPE))
1068 g_file_info_set_attribute_string (info, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE, fstype);
1069 #endif /* G_OS_WIN32 */
1070
1071 if (g_file_attribute_matcher_matches (attribute_matcher,
1072 G_FILE_ATTRIBUTE_FILESYSTEM_READONLY))
1073 {
1074 #ifdef G_OS_WIN32
1075 get_filesystem_readonly (info, local->filename);
1076 #else
1077 get_mount_info (info, local->filename, attribute_matcher);
1078 #endif /* G_OS_WIN32 */
1079 }
1080
1081 #ifndef G_OS_WIN32
1082 if (g_file_attribute_matcher_matches (attribute_matcher,
1083 G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE))
1084 g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE,
1085 is_remote_fs_type (fstype));
1086 #endif
1087
1088 g_file_attribute_matcher_unref (attribute_matcher);
1089
1090 return info;
1091 }
1092
1093 static GMount *
g_local_file_find_enclosing_mount(GFile * file,GCancellable * cancellable,GError ** error)1094 g_local_file_find_enclosing_mount (GFile *file,
1095 GCancellable *cancellable,
1096 GError **error)
1097 {
1098 GLocalFile *local = G_LOCAL_FILE (file);
1099 GStatBuf buf;
1100 char *mountpoint;
1101 GMount *mount;
1102
1103 if (g_lstat (local->filename, &buf) != 0)
1104 goto error;
1105
1106 mountpoint = find_mountpoint_for (local->filename, buf.st_dev, FALSE);
1107 if (mountpoint == NULL)
1108 goto error;
1109
1110 mount = _g_mount_get_for_mount_path (mountpoint, cancellable);
1111 g_free (mountpoint);
1112 if (mount)
1113 return mount;
1114
1115 error:
1116 g_set_io_error (error,
1117 /* Translators: This is an error message when trying to find
1118 * the enclosing (user visible) mount of a file, but none
1119 * exists.
1120 */
1121 _("Containing mount for file %s not found"),
1122 file, 0);
1123
1124 return NULL;
1125 }
1126
1127 static GFile *
g_local_file_set_display_name(GFile * file,const char * display_name,GCancellable * cancellable,GError ** error)1128 g_local_file_set_display_name (GFile *file,
1129 const char *display_name,
1130 GCancellable *cancellable,
1131 GError **error)
1132 {
1133 GLocalFile *local, *new_local;
1134 GFile *new_file, *parent;
1135 GStatBuf statbuf;
1136 GVfsClass *class;
1137 GVfs *vfs;
1138 int errsv;
1139
1140 parent = g_file_get_parent (file);
1141 if (parent == NULL)
1142 {
1143 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
1144 _("Can’t rename root directory"));
1145 return NULL;
1146 }
1147
1148 new_file = g_file_get_child_for_display_name (parent, display_name, error);
1149 g_object_unref (parent);
1150
1151 if (new_file == NULL)
1152 return NULL;
1153 local = G_LOCAL_FILE (file);
1154 new_local = G_LOCAL_FILE (new_file);
1155
1156 if (g_lstat (new_local->filename, &statbuf) == -1)
1157 {
1158 errsv = errno;
1159
1160 if (errsv != ENOENT)
1161 {
1162 g_set_io_error (error, _("Error renaming file %s: %s"), new_file, errsv);
1163 return NULL;
1164 }
1165 }
1166 else
1167 {
1168 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_EXISTS,
1169 _("Can’t rename file, filename already exists"));
1170 return NULL;
1171 }
1172
1173 if (g_rename (local->filename, new_local->filename) == -1)
1174 {
1175 errsv = errno;
1176
1177 if (errsv == EINVAL)
1178 /* We can't get a rename file into itself error here,
1179 * so this must be an invalid filename, on e.g. FAT
1180 */
1181 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_FILENAME,
1182 _("Invalid filename"));
1183 else
1184 g_set_io_error (error,
1185 _("Error renaming file %s: %s"),
1186 file, errsv);
1187 g_object_unref (new_file);
1188 return NULL;
1189 }
1190
1191 vfs = g_vfs_get_default ();
1192 class = G_VFS_GET_CLASS (vfs);
1193 if (class->local_file_moved)
1194 class->local_file_moved (vfs, local->filename, new_local->filename);
1195
1196 return new_file;
1197 }
1198
1199 static GFileInfo *
g_local_file_query_info(GFile * file,const char * attributes,GFileQueryInfoFlags flags,GCancellable * cancellable,GError ** error)1200 g_local_file_query_info (GFile *file,
1201 const char *attributes,
1202 GFileQueryInfoFlags flags,
1203 GCancellable *cancellable,
1204 GError **error)
1205 {
1206 GLocalFile *local = G_LOCAL_FILE (file);
1207 GFileInfo *info;
1208 GFileAttributeMatcher *matcher;
1209 char *basename, *dirname;
1210 GLocalParentFileInfo parent_info;
1211
1212 matcher = g_file_attribute_matcher_new (attributes);
1213
1214 basename = g_path_get_basename (local->filename);
1215
1216 dirname = g_path_get_dirname (local->filename);
1217 _g_local_file_info_get_parent_info (dirname, matcher, &parent_info);
1218 g_free (dirname);
1219
1220 info = _g_local_file_info_get (basename, local->filename,
1221 matcher, flags, &parent_info,
1222 error);
1223
1224
1225 _g_local_file_info_free_parent_info (&parent_info);
1226 g_free (basename);
1227
1228 g_file_attribute_matcher_unref (matcher);
1229
1230 return info;
1231 }
1232
1233 static GFileAttributeInfoList *
g_local_file_query_settable_attributes(GFile * file,GCancellable * cancellable,GError ** error)1234 g_local_file_query_settable_attributes (GFile *file,
1235 GCancellable *cancellable,
1236 GError **error)
1237 {
1238 return g_file_attribute_info_list_ref (local_writable_attributes);
1239 }
1240
1241 static GFileAttributeInfoList *
g_local_file_query_writable_namespaces(GFile * file,GCancellable * cancellable,GError ** error)1242 g_local_file_query_writable_namespaces (GFile *file,
1243 GCancellable *cancellable,
1244 GError **error)
1245 {
1246 GFileAttributeInfoList *list;
1247 GVfsClass *class;
1248 GVfs *vfs;
1249
1250 if (g_once_init_enter (&local_writable_namespaces))
1251 {
1252 /* Writable namespaces: */
1253
1254 list = g_file_attribute_info_list_new ();
1255
1256 #ifdef HAVE_XATTR
1257 g_file_attribute_info_list_add (list,
1258 "xattr",
1259 G_FILE_ATTRIBUTE_TYPE_STRING,
1260 G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
1261 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
1262 g_file_attribute_info_list_add (list,
1263 "xattr-sys",
1264 G_FILE_ATTRIBUTE_TYPE_STRING,
1265 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
1266 #endif
1267
1268 vfs = g_vfs_get_default ();
1269 class = G_VFS_GET_CLASS (vfs);
1270 if (class->add_writable_namespaces)
1271 class->add_writable_namespaces (vfs, list);
1272
1273 g_once_init_leave (&local_writable_namespaces, (gsize)list);
1274 }
1275 list = (GFileAttributeInfoList *)local_writable_namespaces;
1276
1277 return g_file_attribute_info_list_ref (list);
1278 }
1279
1280 static gboolean
g_local_file_set_attribute(GFile * file,const char * attribute,GFileAttributeType type,gpointer value_p,GFileQueryInfoFlags flags,GCancellable * cancellable,GError ** error)1281 g_local_file_set_attribute (GFile *file,
1282 const char *attribute,
1283 GFileAttributeType type,
1284 gpointer value_p,
1285 GFileQueryInfoFlags flags,
1286 GCancellable *cancellable,
1287 GError **error)
1288 {
1289 GLocalFile *local = G_LOCAL_FILE (file);
1290
1291 return _g_local_file_info_set_attribute (local->filename,
1292 attribute,
1293 type,
1294 value_p,
1295 flags,
1296 cancellable,
1297 error);
1298 }
1299
1300 static gboolean
g_local_file_set_attributes_from_info(GFile * file,GFileInfo * info,GFileQueryInfoFlags flags,GCancellable * cancellable,GError ** error)1301 g_local_file_set_attributes_from_info (GFile *file,
1302 GFileInfo *info,
1303 GFileQueryInfoFlags flags,
1304 GCancellable *cancellable,
1305 GError **error)
1306 {
1307 GLocalFile *local = G_LOCAL_FILE (file);
1308 int res, chained_res;
1309 GFileIface *default_iface;
1310
1311 res = _g_local_file_info_set_attributes (local->filename,
1312 info, flags,
1313 cancellable,
1314 error);
1315
1316 if (!res)
1317 error = NULL; /* Don't write over error if further errors */
1318
1319 default_iface = g_type_default_interface_peek (G_TYPE_FILE);
1320
1321 chained_res = (default_iface->set_attributes_from_info) (file, info, flags, cancellable, error);
1322
1323 return res && chained_res;
1324 }
1325
1326 static GFileInputStream *
g_local_file_read(GFile * file,GCancellable * cancellable,GError ** error)1327 g_local_file_read (GFile *file,
1328 GCancellable *cancellable,
1329 GError **error)
1330 {
1331 GLocalFile *local = G_LOCAL_FILE (file);
1332 int fd, ret;
1333 GLocalFileStat buf;
1334
1335 fd = g_open (local->filename, O_RDONLY|O_BINARY, 0);
1336 if (fd == -1)
1337 {
1338 int errsv = errno;
1339
1340 #ifdef G_OS_WIN32
1341 if (errsv == EACCES)
1342 {
1343 /* Exploit the fact that on W32 the glib filename encoding is UTF8 */
1344 ret = GLIB_PRIVATE_CALL (g_win32_stat_utf8) (local->filename, &buf);
1345 if (ret == 0 && S_ISDIR (buf.st_mode))
1346 errsv = EISDIR;
1347 }
1348 #endif
1349 g_set_io_error (error,
1350 _("Error opening file %s: %s"),
1351 file, errsv);
1352 return NULL;
1353 }
1354
1355 ret = g_local_file_fstat (fd, G_LOCAL_FILE_STAT_FIELD_TYPE, G_LOCAL_FILE_STAT_FIELD_ALL, &buf);
1356
1357 if (ret == 0 && S_ISDIR (_g_stat_mode (&buf)))
1358 {
1359 (void) g_close (fd, NULL);
1360 g_set_io_error (error,
1361 _("Error opening file %s: %s"),
1362 file, EISDIR);
1363 return NULL;
1364 }
1365
1366 return _g_local_file_input_stream_new (fd);
1367 }
1368
1369 static GFileOutputStream *
g_local_file_append_to(GFile * file,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1370 g_local_file_append_to (GFile *file,
1371 GFileCreateFlags flags,
1372 GCancellable *cancellable,
1373 GError **error)
1374 {
1375 return _g_local_file_output_stream_append (G_LOCAL_FILE (file)->filename,
1376 flags, cancellable, error);
1377 }
1378
1379 static GFileOutputStream *
g_local_file_create(GFile * file,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1380 g_local_file_create (GFile *file,
1381 GFileCreateFlags flags,
1382 GCancellable *cancellable,
1383 GError **error)
1384 {
1385 return _g_local_file_output_stream_create (G_LOCAL_FILE (file)->filename,
1386 FALSE, flags, NULL,
1387 cancellable, error);
1388 }
1389
1390 static GFileOutputStream *
g_local_file_replace(GFile * file,const char * etag,gboolean make_backup,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1391 g_local_file_replace (GFile *file,
1392 const char *etag,
1393 gboolean make_backup,
1394 GFileCreateFlags flags,
1395 GCancellable *cancellable,
1396 GError **error)
1397 {
1398 return _g_local_file_output_stream_replace (G_LOCAL_FILE (file)->filename,
1399 FALSE,
1400 etag, make_backup, flags, NULL,
1401 cancellable, error);
1402 }
1403
1404 static GFileIOStream *
g_local_file_open_readwrite(GFile * file,GCancellable * cancellable,GError ** error)1405 g_local_file_open_readwrite (GFile *file,
1406 GCancellable *cancellable,
1407 GError **error)
1408 {
1409 GFileOutputStream *output;
1410 GFileIOStream *res;
1411
1412 output = _g_local_file_output_stream_open (G_LOCAL_FILE (file)->filename,
1413 TRUE,
1414 cancellable, error);
1415 if (output == NULL)
1416 return NULL;
1417
1418 res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
1419 g_object_unref (output);
1420 return res;
1421 }
1422
1423 static GFileIOStream *
g_local_file_create_readwrite(GFile * file,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1424 g_local_file_create_readwrite (GFile *file,
1425 GFileCreateFlags flags,
1426 GCancellable *cancellable,
1427 GError **error)
1428 {
1429 GFileOutputStream *output;
1430 GFileIOStream *res;
1431
1432 output = _g_local_file_output_stream_create (G_LOCAL_FILE (file)->filename,
1433 TRUE, flags, NULL,
1434 cancellable, error);
1435 if (output == NULL)
1436 return NULL;
1437
1438 res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
1439 g_object_unref (output);
1440 return res;
1441 }
1442
1443 static GFileIOStream *
g_local_file_replace_readwrite(GFile * file,const char * etag,gboolean make_backup,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1444 g_local_file_replace_readwrite (GFile *file,
1445 const char *etag,
1446 gboolean make_backup,
1447 GFileCreateFlags flags,
1448 GCancellable *cancellable,
1449 GError **error)
1450 {
1451 GFileOutputStream *output;
1452 GFileIOStream *res;
1453
1454 output = _g_local_file_output_stream_replace (G_LOCAL_FILE (file)->filename,
1455 TRUE,
1456 etag, make_backup, flags, NULL,
1457 cancellable, error);
1458 if (output == NULL)
1459 return NULL;
1460
1461 res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
1462 g_object_unref (output);
1463 return res;
1464 }
1465
1466 static gboolean
g_local_file_delete(GFile * file,GCancellable * cancellable,GError ** error)1467 g_local_file_delete (GFile *file,
1468 GCancellable *cancellable,
1469 GError **error)
1470 {
1471 GLocalFile *local = G_LOCAL_FILE (file);
1472 GVfsClass *class;
1473 GVfs *vfs;
1474
1475 if (g_remove (local->filename) == -1)
1476 {
1477 int errsv = errno;
1478
1479 /* Posix allows EEXIST too, but the clearer error
1480 is G_IO_ERROR_NOT_FOUND, and it's what nautilus
1481 expects */
1482 if (errsv == EEXIST)
1483 errsv = ENOTEMPTY;
1484
1485 g_set_io_error (error,
1486 _("Error removing file %s: %s"),
1487 file, errsv);
1488 return FALSE;
1489 }
1490
1491 vfs = g_vfs_get_default ();
1492 class = G_VFS_GET_CLASS (vfs);
1493 if (class->local_file_removed)
1494 class->local_file_removed (vfs, local->filename);
1495
1496 return TRUE;
1497 }
1498
1499 #ifndef G_OS_WIN32
1500
1501 static char *
strip_trailing_slashes(const char * path)1502 strip_trailing_slashes (const char *path)
1503 {
1504 char *path_copy;
1505 int len;
1506
1507 path_copy = g_strdup (path);
1508 len = strlen (path_copy);
1509 while (len > 1 && path_copy[len-1] == '/')
1510 path_copy[--len] = 0;
1511
1512 return path_copy;
1513 }
1514
1515 static char *
expand_symlink(const char * link)1516 expand_symlink (const char *link)
1517 {
1518 char *resolved, *canonical, *parent, *link2;
1519 char symlink_value[4096];
1520 #ifdef G_OS_WIN32
1521 #else
1522 gssize res;
1523 #endif
1524
1525 #ifdef G_OS_WIN32
1526 #else
1527 res = readlink (link, symlink_value, sizeof (symlink_value) - 1);
1528
1529 if (res == -1)
1530 return g_strdup (link);
1531 symlink_value[res] = 0;
1532 #endif
1533
1534 if (g_path_is_absolute (symlink_value))
1535 return g_canonicalize_filename (symlink_value, NULL);
1536 else
1537 {
1538 link2 = strip_trailing_slashes (link);
1539 parent = g_path_get_dirname (link2);
1540 g_free (link2);
1541
1542 resolved = g_build_filename (parent, symlink_value, NULL);
1543 g_free (parent);
1544
1545 canonical = g_canonicalize_filename (resolved, NULL);
1546
1547 g_free (resolved);
1548
1549 return canonical;
1550 }
1551 }
1552
1553 static char *
expand_symlinks(const char * path,dev_t * dev)1554 expand_symlinks (const char *path,
1555 dev_t *dev)
1556 {
1557 char *tmp, *target;
1558 GStatBuf target_stat;
1559 int num_recursions;
1560
1561 target = g_strdup (path);
1562
1563 num_recursions = 0;
1564 do
1565 {
1566 if (g_lstat (target, &target_stat) != 0)
1567 {
1568 g_free (target);
1569 return NULL;
1570 }
1571
1572 if (S_ISLNK (target_stat.st_mode))
1573 {
1574 tmp = target;
1575 target = expand_symlink (target);
1576 g_free (tmp);
1577 }
1578
1579 num_recursions++;
1580
1581 #ifdef MAXSYMLINKS
1582 if (num_recursions > MAXSYMLINKS)
1583 #else
1584 /* 40 is used in kernel sources currently:
1585 * https://github.com/torvalds/linux/include/linux/namei.h
1586 */
1587 if (num_recursions > 40)
1588 #endif
1589 {
1590 g_free (target);
1591 return NULL;
1592 }
1593 }
1594 while (S_ISLNK (target_stat.st_mode));
1595
1596 if (dev)
1597 *dev = target_stat.st_dev;
1598
1599 return target;
1600 }
1601
1602 static char *
get_parent(const char * path,dev_t * parent_dev)1603 get_parent (const char *path,
1604 dev_t *parent_dev)
1605 {
1606 char *parent, *res;
1607 char *path_copy;
1608
1609 path_copy = strip_trailing_slashes (path);
1610
1611 parent = g_path_get_dirname (path_copy);
1612 if (strcmp (parent, ".") == 0)
1613 {
1614 g_free (parent);
1615 g_free (path_copy);
1616 return NULL;
1617 }
1618 g_free (path_copy);
1619
1620 res = expand_symlinks (parent, parent_dev);
1621 g_free (parent);
1622
1623 return res;
1624 }
1625
1626 static char *
expand_all_symlinks(const char * path)1627 expand_all_symlinks (const char *path)
1628 {
1629 char *parent, *parent_expanded;
1630 char *basename, *res;
1631 dev_t parent_dev;
1632
1633 parent = get_parent (path, &parent_dev);
1634 if (parent == NULL)
1635 return NULL;
1636
1637 if (g_strcmp0 (parent, "/") != 0)
1638 {
1639 parent_expanded = expand_all_symlinks (parent);
1640 basename = g_path_get_basename (path);
1641 res = g_build_filename (parent_expanded, basename, NULL);
1642 g_free (basename);
1643 g_free (parent_expanded);
1644 }
1645 else
1646 res = g_strdup (path);
1647
1648 g_free (parent);
1649
1650 return res;
1651 }
1652
1653 static char *
find_mountpoint_for(const char * file,dev_t dev,gboolean resolve_basename_symlink)1654 find_mountpoint_for (const char *file,
1655 dev_t dev,
1656 gboolean resolve_basename_symlink)
1657 {
1658 char *dir, *parent;
1659 dev_t dir_dev, parent_dev;
1660
1661 if (resolve_basename_symlink)
1662 {
1663 dir = expand_symlinks (file, NULL);
1664 if (dir == NULL)
1665 return NULL;
1666 }
1667 else
1668 dir = g_strdup (file);
1669
1670 dir_dev = dev;
1671
1672 while (g_strcmp0 (dir, "/") != 0)
1673 {
1674 parent = get_parent (dir, &parent_dev);
1675 if (parent == NULL)
1676 {
1677 g_free (dir);
1678 return NULL;
1679 }
1680
1681 if (parent_dev != dir_dev)
1682 {
1683 g_free (parent);
1684 return dir;
1685 }
1686
1687 g_free (dir);
1688 dir = parent;
1689 }
1690
1691 return dir;
1692 }
1693
1694 char *
_g_local_file_find_topdir_for(const char * file)1695 _g_local_file_find_topdir_for (const char *file)
1696 {
1697 char *dir;
1698 char *mountpoint = NULL;
1699 dev_t dir_dev;
1700
1701 dir = get_parent (file, &dir_dev);
1702 if (dir == NULL)
1703 return NULL;
1704
1705 mountpoint = find_mountpoint_for (dir, dir_dev, TRUE);
1706 g_free (dir);
1707
1708 return mountpoint;
1709 }
1710
1711 static char *
get_unique_filename(const char * basename,int id)1712 get_unique_filename (const char *basename,
1713 int id)
1714 {
1715 const char *dot;
1716
1717 if (id == 1)
1718 return g_strdup (basename);
1719
1720 dot = strchr (basename, '.');
1721 if (dot)
1722 return g_strdup_printf ("%.*s.%d%s", (int)(dot - basename), basename, id, dot);
1723 else
1724 return g_strdup_printf ("%s.%d", basename, id);
1725 }
1726
1727 static gboolean
path_has_prefix(const char * path,const char * prefix)1728 path_has_prefix (const char *path,
1729 const char *prefix)
1730 {
1731 int prefix_len;
1732
1733 if (prefix == NULL)
1734 return TRUE;
1735
1736 prefix_len = strlen (prefix);
1737
1738 if (strncmp (path, prefix, prefix_len) == 0 &&
1739 (prefix_len == 0 || /* empty prefix always matches */
1740 prefix[prefix_len - 1] == '/' || /* last char in prefix was a /, so it must be in path too */
1741 path[prefix_len] == 0 ||
1742 path[prefix_len] == '/'))
1743 return TRUE;
1744
1745 return FALSE;
1746 }
1747
1748 static char *
try_make_relative(const char * path,const char * base)1749 try_make_relative (const char *path,
1750 const char *base)
1751 {
1752 char *path2, *base2;
1753 char *relative;
1754
1755 path2 = expand_all_symlinks (path);
1756 base2 = expand_all_symlinks (base);
1757
1758 relative = NULL;
1759 if (path2 != NULL && base2 != NULL && path_has_prefix (path2, base2))
1760 {
1761 relative = path2 + strlen (base2);
1762 while (*relative == '/')
1763 relative ++;
1764 relative = g_strdup (relative);
1765 }
1766 g_free (path2);
1767 g_free (base2);
1768
1769 if (relative)
1770 return relative;
1771
1772 /* Failed, use abs path */
1773 return g_strdup (path);
1774 }
1775
1776 static gboolean
ignore_trash_mount(GUnixMountEntry * mount)1777 ignore_trash_mount (GUnixMountEntry *mount)
1778 {
1779 GUnixMountPoint *mount_point = NULL;
1780 const gchar *mount_options;
1781 gboolean retval = TRUE;
1782
1783 if (g_unix_mount_is_system_internal (mount))
1784 return TRUE;
1785
1786 mount_options = g_unix_mount_get_options (mount);
1787 if (mount_options == NULL)
1788 {
1789 mount_point = g_unix_mount_point_at (g_unix_mount_get_mount_path (mount),
1790 NULL);
1791 if (mount_point != NULL)
1792 mount_options = g_unix_mount_point_get_options (mount_point);
1793 }
1794
1795 if (mount_options == NULL ||
1796 strstr (mount_options, "x-gvfs-notrash") == NULL)
1797 retval = FALSE;
1798
1799 g_clear_pointer (&mount_point, g_unix_mount_point_free);
1800
1801 return retval;
1802 }
1803
1804 static gboolean
ignore_trash_path(const gchar * topdir)1805 ignore_trash_path (const gchar *topdir)
1806 {
1807 GUnixMountEntry *mount;
1808 gboolean retval = TRUE;
1809
1810 mount = g_unix_mount_at (topdir, NULL);
1811 if (mount == NULL)
1812 goto out;
1813
1814 retval = ignore_trash_mount (mount);
1815
1816 out:
1817 g_clear_pointer (&mount, g_unix_mount_free);
1818
1819 return retval;
1820 }
1821
1822 gboolean
_g_local_file_has_trash_dir(const char * dirname,dev_t dir_dev)1823 _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev)
1824 {
1825 static gsize home_dev_set = 0;
1826 static dev_t home_dev;
1827 static gboolean home_dev_valid = FALSE;
1828 char *topdir, *globaldir, *trashdir, *tmpname;
1829 uid_t uid;
1830 char uid_str[32];
1831 GStatBuf global_stat, trash_stat;
1832 gboolean res;
1833
1834 if (g_once_init_enter (&home_dev_set))
1835 {
1836 GStatBuf home_stat;
1837
1838 if (g_stat (g_get_home_dir (), &home_stat) == 0)
1839 {
1840 home_dev = home_stat.st_dev;
1841 home_dev_valid = TRUE;
1842 }
1843 else
1844 {
1845 home_dev_valid = FALSE;
1846 }
1847
1848 g_once_init_leave (&home_dev_set, 1);
1849 }
1850
1851 /* Assume we can trash to the home */
1852 if (!home_dev_valid)
1853 return FALSE;
1854 else if (dir_dev == home_dev)
1855 return TRUE;
1856
1857 topdir = find_mountpoint_for (dirname, dir_dev, TRUE);
1858 if (topdir == NULL)
1859 return FALSE;
1860
1861 if (ignore_trash_path (topdir))
1862 {
1863 g_free (topdir);
1864
1865 return FALSE;
1866 }
1867
1868 globaldir = g_build_filename (topdir, ".Trash", NULL);
1869 if (g_lstat (globaldir, &global_stat) == 0 &&
1870 S_ISDIR (global_stat.st_mode) &&
1871 (global_stat.st_mode & S_ISVTX) != 0)
1872 {
1873 /* got a toplevel sysadmin created dir, assume we
1874 * can trash to it (we should be able to create a dir)
1875 * This fails for the FAT case where the ownership of
1876 * that dir would be wrong though..
1877 */
1878 g_free (globaldir);
1879 g_free (topdir);
1880 return TRUE;
1881 }
1882 g_free (globaldir);
1883
1884 /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */
1885 uid = geteuid ();
1886 g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long) uid);
1887
1888 tmpname = g_strdup_printf (".Trash-%s", uid_str);
1889 trashdir = g_build_filename (topdir, tmpname, NULL);
1890 g_free (tmpname);
1891
1892 if (g_lstat (trashdir, &trash_stat) == 0)
1893 {
1894 g_free (topdir);
1895 g_free (trashdir);
1896 return S_ISDIR (trash_stat.st_mode) &&
1897 trash_stat.st_uid == uid;
1898 }
1899 g_free (trashdir);
1900
1901 /* User specific trash didn't exist, can we create it? */
1902 res = g_access (topdir, W_OK) == 0;
1903 g_free (topdir);
1904
1905 return res;
1906 }
1907
1908 #ifdef G_OS_UNIX
1909 gboolean
_g_local_file_is_lost_found_dir(const char * path,dev_t path_dev)1910 _g_local_file_is_lost_found_dir (const char *path, dev_t path_dev)
1911 {
1912 gboolean ret = FALSE;
1913 gchar *mount_dir = NULL;
1914 size_t mount_dir_len;
1915 GStatBuf statbuf;
1916
1917 if (!g_str_has_suffix (path, "/lost+found"))
1918 goto out;
1919
1920 mount_dir = find_mountpoint_for (path, path_dev, FALSE);
1921 if (mount_dir == NULL)
1922 goto out;
1923
1924 mount_dir_len = strlen (mount_dir);
1925 /* We special-case rootfs ('/') since it's the only case where
1926 * mount_dir ends in '/'
1927 */
1928 if (mount_dir_len == 1)
1929 mount_dir_len--;
1930 if (mount_dir_len + strlen ("/lost+found") != strlen (path))
1931 goto out;
1932
1933 if (g_lstat (path, &statbuf) != 0)
1934 goto out;
1935
1936 if (!(S_ISDIR (statbuf.st_mode) &&
1937 statbuf.st_uid == 0 &&
1938 statbuf.st_gid == 0))
1939 goto out;
1940
1941 ret = TRUE;
1942
1943 out:
1944 g_free (mount_dir);
1945 return ret;
1946 }
1947 #endif
1948
1949 static gboolean
g_local_file_trash(GFile * file,GCancellable * cancellable,GError ** error)1950 g_local_file_trash (GFile *file,
1951 GCancellable *cancellable,
1952 GError **error)
1953 {
1954 GLocalFile *local = G_LOCAL_FILE (file);
1955 GStatBuf file_stat, home_stat;
1956 const char *homedir;
1957 char *trashdir, *topdir, *infodir, *filesdir;
1958 char *basename, *trashname, *trashfile, *infoname, *infofile;
1959 char *original_name, *original_name_escaped;
1960 int i;
1961 char *data;
1962 char *path;
1963 gboolean is_homedir_trash;
1964 char *delete_time = NULL;
1965 int fd;
1966 GStatBuf trash_stat, global_stat;
1967 char *dirname, *globaldir;
1968 GVfsClass *class;
1969 GVfs *vfs;
1970 int errsv;
1971
1972 if (glib_should_use_portal ())
1973 return g_trash_portal_trash_file (file, error);
1974
1975 if (g_lstat (local->filename, &file_stat) != 0)
1976 {
1977 errsv = errno;
1978
1979 g_set_io_error (error,
1980 _("Error trashing file %s: %s"),
1981 file, errsv);
1982 return FALSE;
1983 }
1984
1985 homedir = g_get_home_dir ();
1986 if (g_stat (homedir, &home_stat) != 0)
1987 {
1988 errsv = errno;
1989
1990 g_set_io_error (error,
1991 _("Error trashing file %s: %s"),
1992 file, errsv);
1993 return FALSE;
1994 }
1995
1996 is_homedir_trash = FALSE;
1997 trashdir = NULL;
1998
1999 /* On overlayfs, a file's st_dev will be different to the home directory's.
2000 * We still want to create our trash directory under the home directory, so
2001 * instead we should stat the directory that the file we're deleting is in as
2002 * this will have the same st_dev.
2003 */
2004 if (!S_ISDIR (file_stat.st_mode))
2005 {
2006 path = g_path_get_dirname (local->filename);
2007 /* If the parent is a symlink to a different device then it might have
2008 * st_dev equal to the home directory's, in which case we will end up
2009 * trying to rename across a filesystem boundary, which doesn't work. So
2010 * we use g_stat here instead of g_lstat, to know where the symlink
2011 * points to. */
2012 g_stat (path, &file_stat);
2013 g_free (path);
2014 }
2015
2016 if (file_stat.st_dev == home_stat.st_dev)
2017 {
2018 is_homedir_trash = TRUE;
2019 errno = 0;
2020 trashdir = g_build_filename (g_get_user_data_dir (), "Trash", NULL);
2021 if (g_mkdir_with_parents (trashdir, 0700) < 0)
2022 {
2023 char *display_name;
2024 errsv = errno;
2025
2026 display_name = g_filename_display_name (trashdir);
2027 g_set_error (error, G_IO_ERROR,
2028 g_io_error_from_errno (errsv),
2029 _("Unable to create trash directory %s: %s"),
2030 display_name, g_strerror (errsv));
2031 g_free (display_name);
2032 g_free (trashdir);
2033 return FALSE;
2034 }
2035 topdir = g_strdup (g_get_user_data_dir ());
2036 }
2037 else
2038 {
2039 uid_t uid;
2040 char uid_str[32];
2041 gboolean success = FALSE;
2042
2043 uid = geteuid ();
2044 g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long)uid);
2045
2046 topdir = _g_local_file_find_topdir_for (local->filename);
2047 if (topdir == NULL)
2048 {
2049 g_set_io_error (error,
2050 _("Unable to find toplevel directory to trash %s"),
2051 file, ENOTSUP);
2052 return FALSE;
2053 }
2054
2055 if (ignore_trash_path (topdir))
2056 {
2057 g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
2058 _("Trashing on system internal mounts is not supported"));
2059 g_free (topdir);
2060
2061 return FALSE;
2062 }
2063
2064 /* Try looking for global trash dir $topdir/.Trash/$uid */
2065 globaldir = g_build_filename (topdir, ".Trash", NULL);
2066 if (g_lstat (globaldir, &global_stat) == 0 &&
2067 S_ISDIR (global_stat.st_mode) &&
2068 (global_stat.st_mode & S_ISVTX) != 0)
2069 {
2070 trashdir = g_build_filename (globaldir, uid_str, NULL);
2071
2072 if (g_lstat (trashdir, &trash_stat) == 0)
2073 {
2074 if (!S_ISDIR (trash_stat.st_mode) ||
2075 trash_stat.st_uid != uid)
2076 {
2077 /* Not a directory or not owned by user, ignore */
2078 g_free (trashdir);
2079 trashdir = NULL;
2080 }
2081 }
2082 else if (g_mkdir (trashdir, 0700) == -1)
2083 {
2084 g_free (trashdir);
2085 trashdir = NULL;
2086 }
2087 }
2088 g_free (globaldir);
2089
2090 if (trashdir == NULL)
2091 {
2092 gboolean tried_create;
2093
2094 /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */
2095 dirname = g_strdup_printf (".Trash-%s", uid_str);
2096 trashdir = g_build_filename (topdir, dirname, NULL);
2097 success = TRUE;
2098 g_free (dirname);
2099
2100 tried_create = FALSE;
2101
2102 retry:
2103 if (g_lstat (trashdir, &trash_stat) == 0)
2104 {
2105 if (!S_ISDIR (trash_stat.st_mode) ||
2106 trash_stat.st_uid != uid)
2107 {
2108 /* Remove the failed directory */
2109 if (tried_create)
2110 g_remove (trashdir);
2111
2112 /* Not a directory or not owned by user, ignore */
2113 success = FALSE;
2114 }
2115 }
2116 else
2117 {
2118 if (!tried_create &&
2119 g_mkdir (trashdir, 0700) != -1)
2120 {
2121 /* Ensure that the created dir has the right uid etc.
2122 This might fail on e.g. a FAT dir */
2123 tried_create = TRUE;
2124 goto retry;
2125 }
2126 else
2127 {
2128 success = FALSE;
2129 }
2130 }
2131 }
2132
2133 if (!success)
2134 {
2135 gchar *trashdir_display_name = NULL, *file_display_name = NULL;
2136
2137 trashdir_display_name = g_filename_display_name (trashdir);
2138 file_display_name = g_filename_display_name (local->filename);
2139 g_set_error (error, G_IO_ERROR,
2140 G_IO_ERROR_NOT_SUPPORTED,
2141 _("Unable to find or create trash directory %s to trash %s"),
2142 trashdir_display_name, file_display_name);
2143
2144 g_free (trashdir_display_name);
2145 g_free (file_display_name);
2146
2147 g_free (topdir);
2148 g_free (trashdir);
2149
2150 return FALSE;
2151 }
2152 }
2153
2154 /* Trashdir points to the trash dir with the "info" and "files" subdirectories */
2155
2156 infodir = g_build_filename (trashdir, "info", NULL);
2157 filesdir = g_build_filename (trashdir, "files", NULL);
2158
2159 /* Make sure we have the subdirectories */
2160 if ((g_mkdir (infodir, 0700) == -1 && errno != EEXIST) ||
2161 (g_mkdir (filesdir, 0700) == -1 && errno != EEXIST))
2162 {
2163 gchar *trashdir_display_name = NULL, *file_display_name = NULL;
2164
2165 trashdir_display_name = g_filename_display_name (trashdir);
2166 file_display_name = g_filename_display_name (local->filename);
2167 g_set_error (error, G_IO_ERROR,
2168 G_IO_ERROR_NOT_SUPPORTED,
2169 _("Unable to find or create trash directory %s to trash %s"),
2170 trashdir_display_name, file_display_name);
2171
2172 g_free (trashdir_display_name);
2173 g_free (file_display_name);
2174
2175 g_free (topdir);
2176 g_free (trashdir);
2177 g_free (infodir);
2178 g_free (filesdir);
2179
2180 return FALSE;
2181 }
2182
2183 g_free (trashdir);
2184
2185 basename = g_path_get_basename (local->filename);
2186 i = 1;
2187 trashname = NULL;
2188 infofile = NULL;
2189 do {
2190 g_free (trashname);
2191 g_free (infofile);
2192
2193 trashname = get_unique_filename (basename, i++);
2194 infoname = g_strconcat (trashname, ".trashinfo", NULL);
2195 infofile = g_build_filename (infodir, infoname, NULL);
2196 g_free (infoname);
2197
2198 fd = g_open (infofile, O_CREAT | O_EXCL, 0666);
2199 errsv = errno;
2200 } while (fd == -1 && errsv == EEXIST);
2201
2202 g_free (basename);
2203 g_free (infodir);
2204
2205 if (fd == -1)
2206 {
2207 errsv = errno;
2208
2209 g_free (filesdir);
2210 g_free (topdir);
2211 g_free (trashname);
2212 g_free (infofile);
2213
2214 g_set_io_error (error,
2215 _("Unable to create trashing info file for %s: %s"),
2216 file, errsv);
2217 return FALSE;
2218 }
2219
2220 (void) g_close (fd, NULL);
2221
2222 /* Write the full content of the info file before trashing to make
2223 * sure someone doesn't read an empty file. See #749314
2224 */
2225
2226 /* Use absolute names for homedir */
2227 if (is_homedir_trash)
2228 original_name = g_strdup (local->filename);
2229 else
2230 original_name = try_make_relative (local->filename, topdir);
2231 original_name_escaped = g_uri_escape_string (original_name, "/", FALSE);
2232
2233 g_free (original_name);
2234 g_free (topdir);
2235
2236 {
2237 GDateTime *now = g_date_time_new_now_local ();
2238 if (now != NULL)
2239 delete_time = g_date_time_format (now, "%Y-%m-%dT%H:%M:%S");
2240 else
2241 delete_time = g_strdup ("9999-12-31T23:59:59");
2242 g_date_time_unref (now);
2243 }
2244
2245 data = g_strdup_printf ("[Trash Info]\nPath=%s\nDeletionDate=%s\n",
2246 original_name_escaped, delete_time);
2247 g_free (delete_time);
2248
2249 g_file_set_contents_full (infofile, data, -1,
2250 G_FILE_SET_CONTENTS_CONSISTENT | G_FILE_SET_CONTENTS_ONLY_EXISTING,
2251 0600, NULL);
2252
2253 /* TODO: Maybe we should verify that you can delete the file from the trash
2254 * before moving it? OTOH, that is hard, as it needs a recursive scan
2255 */
2256
2257 trashfile = g_build_filename (filesdir, trashname, NULL);
2258
2259 g_free (filesdir);
2260
2261 if (g_rename (local->filename, trashfile) == -1)
2262 {
2263 errsv = errno;
2264
2265 g_unlink (infofile);
2266
2267 g_free (trashname);
2268 g_free (infofile);
2269 g_free (trashfile);
2270
2271 if (errsv == EXDEV)
2272 /* The trash dir was actually on another fs anyway!?
2273 * This can happen when the same device is mounted multiple
2274 * times, or with bind mounts of the same fs.
2275 */
2276 g_set_io_error (error,
2277 _("Unable to trash file %s across filesystem boundaries"),
2278 file, ENOTSUP);
2279 else
2280 g_set_io_error (error,
2281 _("Unable to trash file %s: %s"),
2282 file, errsv);
2283 return FALSE;
2284 }
2285
2286 vfs = g_vfs_get_default ();
2287 class = G_VFS_GET_CLASS (vfs);
2288 if (class->local_file_moved)
2289 class->local_file_moved (vfs, local->filename, trashfile);
2290
2291 g_free (trashfile);
2292
2293 /* TODO: Do we need to update mtime/atime here after the move? */
2294
2295 g_free (infofile);
2296 g_free (data);
2297
2298 g_free (original_name_escaped);
2299 g_free (trashname);
2300
2301 return TRUE;
2302 }
2303 #else /* G_OS_WIN32 */
2304 gboolean
_g_local_file_has_trash_dir(const char * dirname,dev_t dir_dev)2305 _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev)
2306 {
2307 return FALSE; /* XXX ??? */
2308 }
2309
2310 static gboolean
g_local_file_trash(GFile * file,GCancellable * cancellable,GError ** error)2311 g_local_file_trash (GFile *file,
2312 GCancellable *cancellable,
2313 GError **error)
2314 {
2315 GLocalFile *local = G_LOCAL_FILE (file);
2316 SHFILEOPSTRUCTW op = {0};
2317 gboolean success;
2318 wchar_t *wfilename;
2319 long len;
2320
2321 wfilename = g_utf8_to_utf16 (local->filename, -1, NULL, &len, NULL);
2322 /* SHFILEOPSTRUCT.pFrom is double-zero-terminated */
2323 wfilename = g_renew (wchar_t, wfilename, len + 2);
2324 wfilename[len + 1] = 0;
2325
2326 op.wFunc = FO_DELETE;
2327 op.pFrom = wfilename;
2328 op.fFlags = FOF_ALLOWUNDO;
2329
2330 success = SHFileOperationW (&op) == 0;
2331
2332 if (success && op.fAnyOperationsAborted)
2333 {
2334 if (cancellable && !g_cancellable_is_cancelled (cancellable))
2335 g_cancellable_cancel (cancellable);
2336 g_set_io_error (error,
2337 _("Unable to trash file %s: %s"),
2338 file, ECANCELED);
2339 success = FALSE;
2340 }
2341 else if (!success)
2342 g_set_io_error (error,
2343 _("Unable to trash file %s"),
2344 file, 0);
2345
2346 g_free (wfilename);
2347 return success;
2348 }
2349 #endif /* G_OS_WIN32 */
2350
2351 static gboolean
g_local_file_make_directory(GFile * file,GCancellable * cancellable,GError ** error)2352 g_local_file_make_directory (GFile *file,
2353 GCancellable *cancellable,
2354 GError **error)
2355 {
2356 GLocalFile *local = G_LOCAL_FILE (file);
2357
2358 if (g_mkdir (local->filename, 0777) == -1)
2359 {
2360 int errsv = errno;
2361
2362 if (errsv == EINVAL)
2363 /* This must be an invalid filename, on e.g. FAT */
2364 g_set_error_literal (error, G_IO_ERROR,
2365 G_IO_ERROR_INVALID_FILENAME,
2366 _("Invalid filename"));
2367 else
2368 g_set_io_error (error,
2369 _("Error creating directory %s: %s"),
2370 file, errsv);
2371 return FALSE;
2372 }
2373
2374 return TRUE;
2375 }
2376
2377 #ifdef HAVE_SYMLINK
2378 static gboolean
g_local_file_make_symbolic_link(GFile * file,const char * symlink_value,GCancellable * cancellable,GError ** error)2379 g_local_file_make_symbolic_link (GFile *file,
2380 const char *symlink_value,
2381 GCancellable *cancellable,
2382 GError **error)
2383 {
2384 GLocalFile *local = G_LOCAL_FILE (file);
2385
2386 if (symlink (symlink_value, local->filename) == -1)
2387 {
2388 int errsv = errno;
2389
2390 if (errsv == EINVAL)
2391 /* This must be an invalid filename, on e.g. FAT */
2392 g_set_error_literal (error, G_IO_ERROR,
2393 G_IO_ERROR_INVALID_FILENAME,
2394 _("Invalid filename"));
2395 else if (errsv == EPERM)
2396 g_set_error (error, G_IO_ERROR,
2397 G_IO_ERROR_NOT_SUPPORTED,
2398 _("Filesystem does not support symbolic links"));
2399 else
2400 g_set_io_error (error,
2401 _("Error making symbolic link %s: %s"),
2402 file, errsv);
2403 return FALSE;
2404 }
2405 return TRUE;
2406 }
2407 #endif
2408
2409 static gboolean
g_local_file_move(GFile * source,GFile * destination,GFileCopyFlags flags,GCancellable * cancellable,GFileProgressCallback progress_callback,gpointer progress_callback_data,GError ** error)2410 g_local_file_move (GFile *source,
2411 GFile *destination,
2412 GFileCopyFlags flags,
2413 GCancellable *cancellable,
2414 GFileProgressCallback progress_callback,
2415 gpointer progress_callback_data,
2416 GError **error)
2417 {
2418 GLocalFile *local_source, *local_destination;
2419 GStatBuf statbuf;
2420 gboolean destination_exist, source_is_dir;
2421 char *backup_name;
2422 int res;
2423 off_t source_size;
2424 GVfsClass *class;
2425 GVfs *vfs;
2426
2427 if (!G_IS_LOCAL_FILE (source) ||
2428 !G_IS_LOCAL_FILE (destination))
2429 {
2430 /* Fall back to default move */
2431 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Move not supported");
2432 return FALSE;
2433 }
2434
2435 local_source = G_LOCAL_FILE (source);
2436 local_destination = G_LOCAL_FILE (destination);
2437
2438 res = g_lstat (local_source->filename, &statbuf);
2439 if (res == -1)
2440 {
2441 int errsv = errno;
2442
2443 g_set_io_error (error,
2444 _("Error moving file %s: %s"),
2445 source, errsv);
2446 return FALSE;
2447 }
2448
2449 source_is_dir = S_ISDIR (statbuf.st_mode);
2450 source_size = statbuf.st_size;
2451
2452 destination_exist = FALSE;
2453 res = g_lstat (local_destination->filename, &statbuf);
2454 if (res == 0)
2455 {
2456 destination_exist = TRUE; /* Target file exists */
2457
2458 if (flags & G_FILE_COPY_OVERWRITE)
2459 {
2460 /* Always fail on dirs, even with overwrite */
2461 if (S_ISDIR (statbuf.st_mode))
2462 {
2463 if (source_is_dir)
2464 g_set_error_literal (error,
2465 G_IO_ERROR,
2466 G_IO_ERROR_WOULD_MERGE,
2467 _("Can’t move directory over directory"));
2468 else
2469 g_set_error_literal (error,
2470 G_IO_ERROR,
2471 G_IO_ERROR_IS_DIRECTORY,
2472 _("Can’t copy over directory"));
2473 return FALSE;
2474 }
2475 }
2476 else
2477 {
2478 g_set_io_error (error,
2479 _("Error moving file %s: %s"),
2480 source, EEXIST);
2481 return FALSE;
2482 }
2483 }
2484
2485 if (flags & G_FILE_COPY_BACKUP && destination_exist)
2486 {
2487 backup_name = g_strconcat (local_destination->filename, "~", NULL);
2488 if (g_rename (local_destination->filename, backup_name) == -1)
2489 {
2490 g_set_error_literal (error,
2491 G_IO_ERROR,
2492 G_IO_ERROR_CANT_CREATE_BACKUP,
2493 _("Backup file creation failed"));
2494 g_free (backup_name);
2495 return FALSE;
2496 }
2497 g_free (backup_name);
2498 destination_exist = FALSE; /* It did, but no more */
2499 }
2500
2501 if (source_is_dir && destination_exist && (flags & G_FILE_COPY_OVERWRITE))
2502 {
2503 /* Source is a dir, destination exists (and is not a dir, because that would have failed
2504 earlier), and we're overwriting. Manually remove the target so we can do the rename. */
2505 res = g_unlink (local_destination->filename);
2506 if (res == -1)
2507 {
2508 int errsv = errno;
2509
2510 g_set_error (error, G_IO_ERROR,
2511 g_io_error_from_errno (errsv),
2512 _("Error removing target file: %s"),
2513 g_strerror (errsv));
2514 return FALSE;
2515 }
2516 }
2517
2518 if (g_rename (local_source->filename, local_destination->filename) == -1)
2519 {
2520 int errsv = errno;
2521
2522 if (errsv == EXDEV)
2523 /* This will cause the fallback code to run */
2524 g_set_error_literal (error, G_IO_ERROR,
2525 G_IO_ERROR_NOT_SUPPORTED,
2526 _("Move between mounts not supported"));
2527 else if (errsv == EINVAL)
2528 /* This must be an invalid filename, on e.g. FAT, or
2529 we're trying to move the file into itself...
2530 We return invalid filename for both... */
2531 g_set_error_literal (error, G_IO_ERROR,
2532 G_IO_ERROR_INVALID_FILENAME,
2533 _("Invalid filename"));
2534 else
2535 g_set_io_error (error,
2536 _("Error moving file %s: %s"),
2537 source, errsv);
2538 return FALSE;
2539 }
2540
2541 vfs = g_vfs_get_default ();
2542 class = G_VFS_GET_CLASS (vfs);
2543 if (class->local_file_moved)
2544 class->local_file_moved (vfs, local_source->filename, local_destination->filename);
2545
2546 /* Make sure we send full copied size */
2547 if (progress_callback)
2548 progress_callback (source_size, source_size, progress_callback_data);
2549
2550 return TRUE;
2551 }
2552
2553 #ifdef G_OS_WIN32
2554
2555 gboolean
g_local_file_is_nfs_home(const gchar * filename)2556 g_local_file_is_nfs_home (const gchar *filename)
2557 {
2558 return FALSE;
2559 }
2560
2561 #else
2562
2563 static gboolean
is_remote_fs_type(const gchar * fsname)2564 is_remote_fs_type (const gchar *fsname)
2565 {
2566 if (fsname != NULL)
2567 {
2568 if (strcmp (fsname, "nfs") == 0)
2569 return TRUE;
2570 if (strcmp (fsname, "nfs4") == 0)
2571 return TRUE;
2572 if (strcmp (fsname, "cifs") == 0)
2573 return TRUE;
2574 if (strcmp (fsname, "smb") == 0)
2575 return TRUE;
2576 if (strcmp (fsname, "smb2") == 0)
2577 return TRUE;
2578 }
2579
2580 return FALSE;
2581 }
2582
2583 gboolean
g_local_file_is_nfs_home(const gchar * filename)2584 g_local_file_is_nfs_home (const gchar *filename)
2585 {
2586 static gboolean remote_home = FALSE;
2587 static gsize initialized;
2588 const gchar *home;
2589
2590 home = g_get_home_dir ();
2591 if (path_has_prefix (filename, home))
2592 {
2593 if (g_once_init_enter (&initialized))
2594 {
2595 GFile *file;
2596 GFileInfo *info;
2597 const gchar *fs_type = NULL;
2598
2599 file = _g_local_file_new (home);
2600 info = g_local_file_query_filesystem_info (file, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE, NULL, NULL);
2601 if (info != NULL)
2602 fs_type = g_file_info_get_attribute_string (info, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE);
2603 if (g_strcmp0 (fs_type, "nfs") == 0 || g_strcmp0 (fs_type, "nfs4") == 0)
2604 remote_home = TRUE;
2605 g_clear_object (&info);
2606 g_object_unref (file);
2607
2608 g_once_init_leave (&initialized, TRUE);
2609 }
2610 return remote_home;
2611 }
2612
2613 return FALSE;
2614 }
2615 #endif /* !G_OS_WIN32 */
2616
2617 static GFileMonitor*
g_local_file_monitor_dir(GFile * file,GFileMonitorFlags flags,GCancellable * cancellable,GError ** error)2618 g_local_file_monitor_dir (GFile *file,
2619 GFileMonitorFlags flags,
2620 GCancellable *cancellable,
2621 GError **error)
2622 {
2623 GLocalFile *local_file = G_LOCAL_FILE (file);
2624
2625 return g_local_file_monitor_new_for_path (local_file->filename, TRUE, flags, error);
2626 }
2627
2628 static GFileMonitor*
g_local_file_monitor_file(GFile * file,GFileMonitorFlags flags,GCancellable * cancellable,GError ** error)2629 g_local_file_monitor_file (GFile *file,
2630 GFileMonitorFlags flags,
2631 GCancellable *cancellable,
2632 GError **error)
2633 {
2634 GLocalFile *local_file = G_LOCAL_FILE (file);
2635
2636 return g_local_file_monitor_new_for_path (local_file->filename, FALSE, flags, error);
2637 }
2638
2639 /* Here is the GLocalFile implementation of g_file_measure_disk_usage().
2640 *
2641 * If available, we use fopenat() in preference to filenames for
2642 * efficiency and safety reasons. We know that fopenat() is available
2643 * based on if AT_FDCWD is defined. POSIX guarantees that this will be
2644 * defined as a macro.
2645 *
2646 * We use a linked list of stack-allocated GSList nodes in order to be
2647 * able to reconstruct the filename for error messages. We actually
2648 * pass the filename to operate on through the top node of the list.
2649 *
2650 * In case we're using openat(), this top filename will be a basename
2651 * which should be opened in the directory which has also had its fd
2652 * passed along. If we're not using openat() then it will be a full
2653 * absolute filename.
2654 */
2655
2656 static gboolean
g_local_file_measure_size_error(GFileMeasureFlags flags,gint saved_errno,GSList * name,GError ** error)2657 g_local_file_measure_size_error (GFileMeasureFlags flags,
2658 gint saved_errno,
2659 GSList *name,
2660 GError **error)
2661 {
2662 /* Only report an error if we were at the toplevel or if the caller
2663 * requested reporting of all errors.
2664 */
2665 if ((name->next == NULL) || (flags & G_FILE_MEASURE_REPORT_ANY_ERROR))
2666 {
2667 GString *filename;
2668 GSList *node;
2669
2670 /* Skip some work if there is no error return */
2671 if (!error)
2672 return FALSE;
2673
2674 #ifdef AT_FDCWD
2675 /* If using openat() we need to rebuild the filename for the message */
2676 filename = g_string_new (name->data);
2677 for (node = name->next; node; node = node->next)
2678 {
2679 gchar *utf8;
2680
2681 g_string_prepend_c (filename, G_DIR_SEPARATOR);
2682 utf8 = g_filename_display_name (node->data);
2683 g_string_prepend (filename, utf8);
2684 g_free (utf8);
2685 }
2686 #else
2687 {
2688 gchar *utf8;
2689
2690 /* Otherwise, we already have it, so just use it. */
2691 node = name;
2692 filename = g_string_new (NULL);
2693 utf8 = g_filename_display_name (node->data);
2694 g_string_append (filename, utf8);
2695 g_free (utf8);
2696 }
2697 #endif
2698
2699 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (saved_errno),
2700 _("Could not determine the disk usage of %s: %s"),
2701 filename->str, g_strerror (saved_errno));
2702
2703 g_string_free (filename, TRUE);
2704
2705 return FALSE;
2706 }
2707
2708 else
2709 /* We're not reporting this error... */
2710 return TRUE;
2711 }
2712
2713 typedef struct
2714 {
2715 GFileMeasureFlags flags;
2716 dev_t contained_on;
2717 GCancellable *cancellable;
2718
2719 GFileMeasureProgressCallback progress_callback;
2720 gpointer progress_data;
2721
2722 guint64 disk_usage;
2723 guint64 num_dirs;
2724 guint64 num_files;
2725
2726 guint64 last_progress_report;
2727 } MeasureState;
2728
2729 static gboolean
2730 g_local_file_measure_size_of_contents (gint fd,
2731 GSList *dir_name,
2732 MeasureState *state,
2733 GError **error);
2734
2735 static gboolean
g_local_file_measure_size_of_file(gint parent_fd,GSList * name,MeasureState * state,GError ** error)2736 g_local_file_measure_size_of_file (gint parent_fd,
2737 GSList *name,
2738 MeasureState *state,
2739 GError **error)
2740 {
2741 GLocalFileStat buf;
2742
2743 if (g_cancellable_set_error_if_cancelled (state->cancellable, error))
2744 return FALSE;
2745
2746 #if defined (AT_FDCWD)
2747 if (g_local_file_fstatat (parent_fd, name->data, AT_SYMLINK_NOFOLLOW,
2748 G_LOCAL_FILE_STAT_FIELD_BASIC_STATS,
2749 G_LOCAL_FILE_STAT_FIELD_ALL & (~G_LOCAL_FILE_STAT_FIELD_ATIME),
2750 &buf) != 0)
2751 {
2752 int errsv = errno;
2753 return g_local_file_measure_size_error (state->flags, errsv, name, error);
2754 }
2755 #elif defined (HAVE_LSTAT) || !defined (G_OS_WIN32)
2756 if (g_lstat (name->data, &buf) != 0)
2757 {
2758 int errsv = errno;
2759 return g_local_file_measure_size_error (state->flags, errsv, name, error);
2760 }
2761 #else /* !AT_FDCWD && !HAVE_LSTAT && G_OS_WIN32 */
2762 if (GLIB_PRIVATE_CALL (g_win32_lstat_utf8) (name->data, &buf) != 0)
2763 {
2764 int errsv = errno;
2765 return g_local_file_measure_size_error (state->flags, errsv, name, error);
2766 }
2767 #endif
2768
2769 if (name->next)
2770 {
2771 /* If not at the toplevel, check for a device boundary. */
2772
2773 if (state->flags & G_FILE_MEASURE_NO_XDEV)
2774 if (state->contained_on != _g_stat_dev (&buf))
2775 return TRUE;
2776 }
2777 else
2778 {
2779 /* If, however, this is the toplevel, set the device number so
2780 * that recursive invocations can compare against it.
2781 */
2782 state->contained_on = _g_stat_dev (&buf);
2783 }
2784
2785 #if defined (G_OS_WIN32)
2786 if (~state->flags & G_FILE_MEASURE_APPARENT_SIZE)
2787 state->disk_usage += buf.allocated_size;
2788 else
2789 #elif defined (HAVE_STRUCT_STAT_ST_BLOCKS)
2790 if (~state->flags & G_FILE_MEASURE_APPARENT_SIZE)
2791 state->disk_usage += _g_stat_blocks (&buf) * G_GUINT64_CONSTANT (512);
2792 else
2793 #endif
2794 state->disk_usage += _g_stat_size (&buf);
2795
2796 if (S_ISDIR (_g_stat_mode (&buf)))
2797 state->num_dirs++;
2798 else
2799 state->num_files++;
2800
2801 if (state->progress_callback)
2802 {
2803 /* We could attempt to do some cleverness here in order to avoid
2804 * calling clock_gettime() so much, but we're doing stats and opens
2805 * all over the place already...
2806 */
2807 if (state->last_progress_report)
2808 {
2809 guint64 now;
2810
2811 now = g_get_monotonic_time ();
2812
2813 if (state->last_progress_report + 200 * G_TIME_SPAN_MILLISECOND < now)
2814 {
2815 (* state->progress_callback) (TRUE,
2816 state->disk_usage, state->num_dirs, state->num_files,
2817 state->progress_data);
2818 state->last_progress_report = now;
2819 }
2820 }
2821 else
2822 {
2823 /* We must do an initial report to inform that more reports
2824 * will be coming.
2825 */
2826 (* state->progress_callback) (TRUE, 0, 0, 0, state->progress_data);
2827 state->last_progress_report = g_get_monotonic_time ();
2828 }
2829 }
2830
2831 if (S_ISDIR (_g_stat_mode (&buf)))
2832 {
2833 int dir_fd = -1;
2834 #ifdef AT_FDCWD
2835 int errsv;
2836 #endif
2837
2838 if (g_cancellable_set_error_if_cancelled (state->cancellable, error))
2839 return FALSE;
2840
2841 #ifdef AT_FDCWD
2842 #ifdef HAVE_OPEN_O_DIRECTORY
2843 dir_fd = openat (parent_fd, name->data, O_RDONLY|O_DIRECTORY);
2844 #else
2845 dir_fd = openat (parent_fd, name->data, O_RDONLY);
2846 #endif
2847 errsv = errno;
2848 if (dir_fd < 0)
2849 return g_local_file_measure_size_error (state->flags, errsv, name, error);
2850 #endif
2851
2852 if (!g_local_file_measure_size_of_contents (dir_fd, name, state, error))
2853 return FALSE;
2854 }
2855
2856 return TRUE;
2857 }
2858
2859 static gboolean
g_local_file_measure_size_of_contents(gint fd,GSList * dir_name,MeasureState * state,GError ** error)2860 g_local_file_measure_size_of_contents (gint fd,
2861 GSList *dir_name,
2862 MeasureState *state,
2863 GError **error)
2864 {
2865 gboolean success = TRUE;
2866 const gchar *name;
2867 GDir *dir;
2868 gint saved_errno;
2869
2870 #ifdef AT_FDCWD
2871 {
2872 /* If this fails, we want to preserve the errno from fdopendir() */
2873 DIR *dirp;
2874 dirp = fdopendir (fd);
2875 saved_errno = errno;
2876 dir = dirp ? GLIB_PRIVATE_CALL(g_dir_new_from_dirp) (dirp) : NULL;
2877 g_assert ((dirp == NULL) == (dir == NULL));
2878 }
2879 #else
2880 dir = GLIB_PRIVATE_CALL(g_dir_open_with_errno) (dir_name->data, 0);
2881 saved_errno = errno;
2882 #endif
2883
2884 if (dir == NULL)
2885 {
2886 #ifdef AT_FDCWD
2887 close (fd);
2888 #endif
2889
2890 return g_local_file_measure_size_error (state->flags, saved_errno, dir_name, error);
2891 }
2892
2893 while (success && (name = g_dir_read_name (dir)))
2894 {
2895 GSList node;
2896
2897 node.next = dir_name;
2898 #ifdef AT_FDCWD
2899 node.data = (gchar *) name;
2900 #else
2901 node.data = g_build_filename (dir_name->data, name, NULL);
2902 #endif
2903
2904 success = g_local_file_measure_size_of_file (fd, &node, state, error);
2905
2906 #ifndef AT_FDCWD
2907 g_free (node.data);
2908 #endif
2909 }
2910
2911 g_dir_close (dir);
2912
2913 return success;
2914 }
2915
2916 static gboolean
g_local_file_measure_disk_usage(GFile * file,GFileMeasureFlags flags,GCancellable * cancellable,GFileMeasureProgressCallback progress_callback,gpointer progress_data,guint64 * disk_usage,guint64 * num_dirs,guint64 * num_files,GError ** error)2917 g_local_file_measure_disk_usage (GFile *file,
2918 GFileMeasureFlags flags,
2919 GCancellable *cancellable,
2920 GFileMeasureProgressCallback progress_callback,
2921 gpointer progress_data,
2922 guint64 *disk_usage,
2923 guint64 *num_dirs,
2924 guint64 *num_files,
2925 GError **error)
2926 {
2927 GLocalFile *local_file = G_LOCAL_FILE (file);
2928 MeasureState state = { 0, };
2929 gint root_fd = -1;
2930 GSList node;
2931
2932 state.flags = flags;
2933 state.cancellable = cancellable;
2934 state.progress_callback = progress_callback;
2935 state.progress_data = progress_data;
2936
2937 #ifdef AT_FDCWD
2938 root_fd = AT_FDCWD;
2939 #endif
2940
2941 node.data = local_file->filename;
2942 node.next = NULL;
2943
2944 if (!g_local_file_measure_size_of_file (root_fd, &node, &state, error))
2945 return FALSE;
2946
2947 if (disk_usage)
2948 *disk_usage = state.disk_usage;
2949
2950 if (num_dirs)
2951 *num_dirs = state.num_dirs;
2952
2953 if (num_files)
2954 *num_files = state.num_files;
2955
2956 return TRUE;
2957 }
2958
2959 static void
g_local_file_file_iface_init(GFileIface * iface)2960 g_local_file_file_iface_init (GFileIface *iface)
2961 {
2962 iface->dup = g_local_file_dup;
2963 iface->hash = g_local_file_hash;
2964 iface->equal = g_local_file_equal;
2965 iface->is_native = g_local_file_is_native;
2966 iface->has_uri_scheme = g_local_file_has_uri_scheme;
2967 iface->get_uri_scheme = g_local_file_get_uri_scheme;
2968 iface->get_basename = g_local_file_get_basename;
2969 iface->get_path = g_local_file_get_path;
2970 iface->get_uri = g_local_file_get_uri;
2971 iface->get_parse_name = g_local_file_get_parse_name;
2972 iface->get_parent = g_local_file_get_parent;
2973 iface->prefix_matches = g_local_file_prefix_matches;
2974 iface->get_relative_path = g_local_file_get_relative_path;
2975 iface->resolve_relative_path = g_local_file_resolve_relative_path;
2976 iface->get_child_for_display_name = g_local_file_get_child_for_display_name;
2977 iface->set_display_name = g_local_file_set_display_name;
2978 iface->enumerate_children = g_local_file_enumerate_children;
2979 iface->query_info = g_local_file_query_info;
2980 iface->query_filesystem_info = g_local_file_query_filesystem_info;
2981 iface->find_enclosing_mount = g_local_file_find_enclosing_mount;
2982 iface->query_settable_attributes = g_local_file_query_settable_attributes;
2983 iface->query_writable_namespaces = g_local_file_query_writable_namespaces;
2984 iface->set_attribute = g_local_file_set_attribute;
2985 iface->set_attributes_from_info = g_local_file_set_attributes_from_info;
2986 iface->read_fn = g_local_file_read;
2987 iface->append_to = g_local_file_append_to;
2988 iface->create = g_local_file_create;
2989 iface->replace = g_local_file_replace;
2990 iface->open_readwrite = g_local_file_open_readwrite;
2991 iface->create_readwrite = g_local_file_create_readwrite;
2992 iface->replace_readwrite = g_local_file_replace_readwrite;
2993 iface->delete_file = g_local_file_delete;
2994 iface->trash = g_local_file_trash;
2995 iface->make_directory = g_local_file_make_directory;
2996 #ifdef HAVE_SYMLINK
2997 iface->make_symbolic_link = g_local_file_make_symbolic_link;
2998 #endif
2999 iface->move = g_local_file_move;
3000 iface->monitor_dir = g_local_file_monitor_dir;
3001 iface->monitor_file = g_local_file_monitor_file;
3002 iface->measure_disk_usage = g_local_file_measure_disk_usage;
3003
3004 iface->supports_thread_contexts = TRUE;
3005 }
3006