gio/glocalfile.c

   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 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, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: Alexander Larsson <alexl@redhat.com>
  21  */
  22
  23 #include "config.h"
  24
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <fcntl.h>
  30 #ifdef HAVE_UNISTD_H
  31 #include <unistd.h>
  32 #endif
  33
  34 #if HAVE_SYS_STATFS_H
  35 #include <sys/statfs.h>
  36 #endif
  37 #if HAVE_SYS_STATVFS_H
  38 #include <sys/statvfs.h>
  39 #endif
  40 #if HAVE_SYS_VFS_H
  41 #include <sys/vfs.h>
  42 #elif HAVE_SYS_MOUNT_H
  43 #if HAVE_SYS_PARAM_H
  44 #include <sys/param.h>
  45 #endif
  46 #include <sys/mount.h>
  47 #endif
  48
  49 #ifndef O_BINARY
  50 #define O_BINARY 0
  51 #endif
  52
  53 #if defined(HAVE_STATFS) && defined(HAVE_STATVFS)
  54 /* Some systems have both statfs and statvfs, pick the
  55    most "native" for these */
  56 # if !defined(HAVE_STRUCT_STATFS_F_BAVAIL)
  57    /* on solaris and irix, statfs doesn't even have the
  58       f_bavail field */
  59 #  define USE_STATVFS
  60 # else
  61   /* at least on linux, statfs is the actual syscall */
  62 #  define USE_STATFS
  63 # endif
  64
  65 #elif defined(HAVE_STATFS)
  66
  67 # define USE_STATFS
  68
  69 #elif defined(HAVE_STATVFS)
  70
  71 # define USE_STATVFS
  72
  73 #endif
  74
  75 #include "gfileattribute.h"
  76 #include "glocalfile.h"
  77 #include "glocalfileinfo.h"
  78 #include "glocalfileenumerator.h"
  79 #include "glocalfileinputstream.h"
  80 #include "glocalfileoutputstream.h"
  81 #include "glocaldirectorymonitor.h"
  82 #include "glocalfilemonitor.h"
  83 #include "gmountprivate.h"
  84 #include "gunixmounts.h"
  85 #include "gioerror.h"
  86 #include <glib/gstdio.h>
  87 #include "glibintl.h"
  88
  89 #ifdef G_OS_WIN32
  90 #define _WIN32_WINNT 0x0500
  91 #include <windows.h>
  92 #include <io.h>
  93 #include <direct.h>
  94
  95 #ifndef FILE_READ_ONLY_VOLUME
  96 #define FILE_READ_ONLY_VOLUME           0x00080000
  97 #endif
  98
  99 #ifndef S_ISDIR
 100 #define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
 101 #endif
 102 #ifndef S_ISLNK
 103 #define S_ISLNK(m) (0)
 104 #endif
 105 #endif
 106
 107 #include "gioalias.h"
 108
 109 static void g_local_file_file_iface_init (GFileIface *iface);
 110
 111 static GFileAttributeInfoList *local_writable_attributes = NULL;
 112 static GFileAttributeInfoList *local_writable_namespaces = NULL;
 113
 114 struct _GLocalFile
 115 {
 116   GObject parent_instance;
 117
 118   char *filename;
 119 };
 120
 121 #define g_local_file_get_type _g_local_file_get_type
 122 G_DEFINE_TYPE_WITH_CODE (GLocalFile, g_local_file, G_TYPE_OBJECT,
 123                          G_IMPLEMENT_INTERFACE (G_TYPE_FILE,
 124                                                 g_local_file_file_iface_init))
 125
 126 static char *find_mountpoint_for (const char *file, dev_t dev);
 127
 128 static void
 129 g_local_file_finalize (GObject *object)
 130 {
 131   GLocalFile *local;
 132
 133   local = G_LOCAL_FILE (object);
 134
 135   g_free (local->filename);
 136
 137   G_OBJECT_CLASS (g_local_file_parent_class)->finalize (object);
 138 }
 139
 140 static void
 141 g_local_file_class_init (GLocalFileClass *klass)
 142 {
 143   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 144   GFileAttributeInfoList *list;
 145
 146   gobject_class->finalize = g_local_file_finalize;
 147
 148   /* Set up attribute lists */
 149
 150   /* Writable attributes: */
 151
 152   list = g_file_attribute_info_list_new ();
 153
 154   g_file_attribute_info_list_add (list,
 155                                   G_FILE_ATTRIBUTE_UNIX_MODE,
 156                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 157                                   G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
 158                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 159
 160 #ifdef HAVE_CHOWN
 161   g_file_attribute_info_list_add (list,
 162                                   G_FILE_ATTRIBUTE_UNIX_UID,
 163                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 164                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 165   g_file_attribute_info_list_add (list,
 166                                   G_FILE_ATTRIBUTE_UNIX_GID,
 167                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 168                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 169 #endif
 170
 171 #ifdef HAVE_SYMLINK
 172   g_file_attribute_info_list_add (list,
 173                                   G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET,
 174                                   G_FILE_ATTRIBUTE_TYPE_BYTE_STRING,
 175                                   0);
 176 #endif
 177
 178 #ifdef HAVE_UTIMES
 179   g_file_attribute_info_list_add (list,
 180                                   G_FILE_ATTRIBUTE_TIME_MODIFIED,
 181                                   G_FILE_ATTRIBUTE_TYPE_UINT64,
 182                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 183   g_file_attribute_info_list_add (list,
 184                                   G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC,
 185                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 186                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 187   g_file_attribute_info_list_add (list,
 188                                   G_FILE_ATTRIBUTE_TIME_ACCESS,
 189                                   G_FILE_ATTRIBUTE_TYPE_UINT64,
 190                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 191   g_file_attribute_info_list_add (list,
 192                                   G_FILE_ATTRIBUTE_TIME_ACCESS_USEC,
 193                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 194                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 195 #endif
 196
 197   local_writable_attributes = list;
 198
 199   /* Writable namespaces: */
 200
 201   list = g_file_attribute_info_list_new ();
 202
 203 #ifdef HAVE_XATTR
 204   g_file_attribute_info_list_add (list,
 205                                   "xattr",
 206                                   G_FILE_ATTRIBUTE_TYPE_STRING,
 207                                   G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
 208                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 209   g_file_attribute_info_list_add (list,
 210                                   "xattr-sys",
 211                                   G_FILE_ATTRIBUTE_TYPE_STRING,
 212                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 213 #endif
 214
 215   local_writable_namespaces = list;
 216 }
 217
 218 static void
 219 g_local_file_init (GLocalFile *local)
 220 {
 221 }
 222
 223
 224 static char *
 225 canonicalize_filename (const char *filename)
 226 {
 227   char *canon, *start, *p, *q;
 228   char *cwd;
 229   int i;
 230
 231   if (!g_path_is_absolute (filename))
 232     {
 233       cwd = g_get_current_dir ();
 234       canon = g_build_filename (cwd, filename, NULL);
 235       g_free (cwd);
 236     }
 237   else
 238     canon = g_strdup (filename);
 239
 240   start = (char *)g_path_skip_root (canon);
 241
 242   /* POSIX allows double slashes at the start to
 243    * mean something special (as does windows too).
 244    * So, "//" != "/", but more than two slashes
 245    * is treated as "/".
 246    */
 247   i = 0;
 248   for (p = start - 1;
 249        (p >= canon) &&
 250          G_IS_DIR_SEPARATOR (*p);
 251        p--)
 252     i++;
 253   if (i > 2)
 254     {
 255       i -= 1;
 256       start -= i;
 257       memmove (start, start+i, strlen (start+i)+1);
 258     }
 259
 260   p = start;
 261   while (*p != 0)
 262     {
 263       if (p[0] == '.' && (p[1] == 0 || G_IS_DIR_SEPARATOR (p[1])))
 264         {
 265           memmove (p, p+1, strlen (p+1)+1);
 266         }
 267       else if (p[0] == '.' && p[1] == '.' && (p[2] == 0 || G_IS_DIR_SEPARATOR (p[2])))
 268         {
 269           q = p + 2;
 270           /* Skip previous separator */
 271           p = p - 2;
 272           if (p < start)
 273             p = start;
 274           while (p > start && !G_IS_DIR_SEPARATOR (*p))
 275             p--;
 276           if (G_IS_DIR_SEPARATOR (*p))
 277             *p++ = G_DIR_SEPARATOR;
 278           memmove (p, q, strlen (q)+1);
 279         }
 280       else
 281         {
 282           /* Skip until next separator */
 283           while (*p != 0 && !G_IS_DIR_SEPARATOR (*p))
 284             p++;
 285
 286           if (*p != 0)
 287             {
 288               /* Canonicalize one separator */
 289               *p++ = G_DIR_SEPARATOR;
 290             }
 291         }
 292
 293       /* Remove additional separators */
 294       q = p;
 295       while (*q && G_IS_DIR_SEPARATOR (*q))
 296         q++;
 297
 298       if (p != q)
 299         memmove (p, q, strlen (q)+1);
 300     }
 301
 302   /* Remove trailing slashes */
 303   if (p > start && G_IS_DIR_SEPARATOR (*(p-1)))
 304     *(p-1) = 0;
 305
 306   return canon;
 307 }
 308
 309 /**
 310  * _g_local_file_new:
 311  * @filename: filename of the file to create.
 312  *
 313  * Returns: new local #GFile.
 314  **/
 315 GFile *
 316 _g_local_file_new (const char *filename)
 317 {
 318   GLocalFile *local;
 319
 320   local = g_object_new (G_TYPE_LOCAL_FILE, NULL);
 321   local->filename = canonicalize_filename (filename);
 322
 323   return G_FILE (local);
 324 }
 325
 326 static gboolean
 327 g_local_file_is_native (GFile *file)
 328 {
 329   return TRUE;
 330 }
 331
 332 static gboolean
 333 g_local_file_has_uri_scheme (GFile      *file,
 334                              const char *uri_scheme)
 335 {
 336   return g_ascii_strcasecmp (uri_scheme, "file") == 0;
 337 }
 338
 339 static char *
 340 g_local_file_get_uri_scheme (GFile *file)
 341 {
 342   return g_strdup ("file");
 343 }
 344
 345 static char *
 346 g_local_file_get_basename (GFile *file)
 347 {
 348   return g_path_get_basename (G_LOCAL_FILE (file)->filename);
 349 }
 350
 351 static char *
 352 g_local_file_get_path (GFile *file)
 353 {
 354   return g_strdup (G_LOCAL_FILE (file)->filename);
 355 }
 356
 357 static char *
 358 g_local_file_get_uri (GFile *file)
 359 {
 360   return g_filename_to_uri (G_LOCAL_FILE (file)->filename, NULL, NULL);
 361 }
 362
 363 static gboolean
 364 get_filename_charset (const gchar **filename_charset)
 365 {
 366   const gchar **charsets;
 367   gboolean is_utf8;
 368
 369   is_utf8 = g_get_filename_charsets (&charsets);
 370
 371   if (filename_charset)
 372     *filename_charset = charsets[0];
 373
 374   return is_utf8;
 375 }
 376
 377 static gboolean
 378 name_is_valid_for_display (const char *string,
 379                            gboolean    is_valid_utf8)
 380 {
 381   char c;
 382
 383   if (!is_valid_utf8 &&
 384       !g_utf8_validate (string, -1, NULL))
 385     return FALSE;
 386
 387   while ((c = *string++) != 0)
 388     {
 389       if (g_ascii_iscntrl (c))
 390         return FALSE;
 391     }
 392
 393   return TRUE;
 394 }
 395
 396 static char *
 397 g_local_file_get_parse_name (GFile *file)
 398 {
 399   const char *filename;
 400   char *parse_name;
 401   const gchar *charset;
 402   char *utf8_filename;
 403   char *roundtripped_filename;
 404   gboolean free_utf8_filename;
 405   gboolean is_valid_utf8;
 406   char *escaped_path;
 407
 408   filename = G_LOCAL_FILE (file)->filename;
 409   if (get_filename_charset (&charset))
 410     {
 411       utf8_filename = (char *)filename;
 412       free_utf8_filename = FALSE;
 413       is_valid_utf8 = FALSE; /* Can't guarantee this */
 414     }
 415   else
 416     {
 417       utf8_filename = g_convert (filename, -1,
 418                                  "UTF-8", charset, NULL, NULL, NULL);
 419       free_utf8_filename = TRUE;
 420       is_valid_utf8 = TRUE;
 421
 422       if (utf8_filename != NULL)
 423         {
 424           /* Make sure we can roundtrip: */
 425           roundtripped_filename = g_convert (utf8_filename, -1,
 426                                              charset, "UTF-8", NULL, NULL, NULL);
 427
 428           if (roundtripped_filename == NULL ||
 429               strcmp (utf8_filename, roundtripped_filename) != 0)
 430             {
 431               g_free (utf8_filename);
 432               utf8_filename = NULL;
 433             }
 434         }
 435     }
 436
 437   if (utf8_filename != NULL &&
 438       name_is_valid_for_display (utf8_filename, is_valid_utf8))
 439     {
 440       if (free_utf8_filename)
 441         parse_name = utf8_filename;
 442       else
 443         parse_name = g_strdup (utf8_filename);
 444     }
 445   else
 446     {
 447       escaped_path = g_uri_escape_string (filename,
 448                                           G_URI_RESERVED_CHARS_ALLOWED_IN_PATH_ELEMENT "/",
 449                                           TRUE);
 450       parse_name = g_strconcat ("file://",
 451                                 (*escaped_path != '/') ? "/" : "",
 452                                 escaped_path,
 453                                 NULL);
 454
 455       g_free (escaped_path);
 456
 457       if (free_utf8_filename)
 458         g_free (utf8_filename);
 459     }
 460
 461   return parse_name;
 462 }
 463
 464 static GFile *
 465 g_local_file_get_parent (GFile *file)
 466 {
 467   GLocalFile *local = G_LOCAL_FILE (file);
 468   const char *non_root;
 469   char *dirname;
 470   GFile *parent;
 471
 472   /* Check for root */
 473   non_root = g_path_skip_root (local->filename);
 474   if (*non_root == 0)
 475     return NULL;
 476
 477   dirname = g_path_get_dirname (local->filename);
 478   parent = _g_local_file_new (dirname);
 479   g_free (dirname);
 480   return parent;
 481 }
 482
 483 static GFile *
 484 g_local_file_dup (GFile *file)
 485 {
 486   GLocalFile *local = G_LOCAL_FILE (file);
 487
 488   return _g_local_file_new (local->filename);
 489 }
 490
 491 static guint
 492 g_local_file_hash (GFile *file)
 493 {
 494   GLocalFile *local = G_LOCAL_FILE (file);
 495
 496   return g_str_hash (local->filename);
 497 }
 498
 499 static gboolean
 500 g_local_file_equal (GFile *file1,
 501                     GFile *file2)
 502 {
 503   GLocalFile *local1 = G_LOCAL_FILE (file1);
 504   GLocalFile *local2 = G_LOCAL_FILE (file2);
 505
 506   return g_str_equal (local1->filename, local2->filename);
 507 }
 508
 509 static const char *
 510 match_prefix (const char *path,
 511               const char *prefix)
 512 {
 513   int prefix_len;
 514
 515   prefix_len = strlen (prefix);
 516   if (strncmp (path, prefix, prefix_len) != 0)
 517     return NULL;
 518
 519   /* Handle the case where prefix is the root, so that
 520    * the IS_DIR_SEPRARATOR check below works */
 521   if (prefix_len > 0 &&
 522       G_IS_DIR_SEPARATOR (prefix[prefix_len-1]))
 523     prefix_len--;
 524
 525   return path + prefix_len;
 526 }
 527
 528 static gboolean
 529 g_local_file_prefix_matches (GFile *parent,
 530                              GFile *descendant)
 531 {
 532   GLocalFile *parent_local = G_LOCAL_FILE (parent);
 533   GLocalFile *descendant_local = G_LOCAL_FILE (descendant);
 534   const char *remainder;
 535
 536   remainder = match_prefix (descendant_local->filename, parent_local->filename);
 537   if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
 538     return TRUE;
 539   return FALSE;
 540 }
 541
 542 static char *
 543 g_local_file_get_relative_path (GFile *parent,
 544                                 GFile *descendant)
 545 {
 546   GLocalFile *parent_local = G_LOCAL_FILE (parent);
 547   GLocalFile *descendant_local = G_LOCAL_FILE (descendant);
 548   const char *remainder;
 549
 550   remainder = match_prefix (descendant_local->filename, parent_local->filename);
 551
 552   if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
 553     return g_strdup (remainder + 1);
 554   return NULL;
 555 }
 556
 557 static GFile *
 558 g_local_file_resolve_relative_path (GFile      *file,
 559                                     const char *relative_path)
 560 {
 561   GLocalFile *local = G_LOCAL_FILE (file);
 562   char *filename;
 563   GFile *child;
 564
 565   if (g_path_is_absolute (relative_path))
 566     return _g_local_file_new (relative_path);
 567
 568   filename = g_build_filename (local->filename, relative_path, NULL);
 569   child = _g_local_file_new (filename);
 570   g_free (filename);
 571
 572   return child;
 573 }
 574
 575 static GFileEnumerator *
 576 g_local_file_enumerate_children (GFile                *file,
 577                                  const char           *attributes,
 578                                  GFileQueryInfoFlags   flags,
 579                                  GCancellable         *cancellable,
 580                                  GError              **error)
 581 {
 582   GLocalFile *local = G_LOCAL_FILE (file);
 583   return _g_local_file_enumerator_new (local,
 584                                        attributes, flags,
 585                                        cancellable, error);
 586 }
 587
 588 static GFile *
 589 g_local_file_get_child_for_display_name (GFile        *file,
 590                                          const char   *display_name,
 591                                          GError      **error)
 592 {
 593   GFile *parent, *new_file;
 594   char *basename;
 595
 596   basename = g_filename_from_utf8 (display_name, -1, NULL, NULL, NULL);
 597   if (basename == NULL)
 598     {
 599       g_set_error (error, G_IO_ERROR,
 600                    G_IO_ERROR_INVALID_FILENAME,
 601                    _("Invalid filename %s"), display_name);
 602       return NULL;
 603     }
 604
 605   parent = g_file_get_parent (file);
 606   new_file = g_file_get_child (file, basename);
 607   g_object_unref (parent);
 608   g_free (basename);
 609
 610   return new_file;
 611 }
 612
 613 #ifdef USE_STATFS
 614 static const char *
 615 get_fs_type (long f_type)
 616 {
 617
 618   /* filesystem ids taken from linux manpage */
 619   switch (f_type)
 620     {
 621     case 0xadf5:
 622       return "adfs";
 623     case 0x5346414f:
 624       return "afs";
 625     case 0x0187:
 626       return "autofs";
 627     case 0xADFF:
 628       return "affs";
 629     case 0x42465331:
 630       return "befs";
 631     case 0x1BADFACE:
 632       return "bfs";
 633     case 0xFF534D42:
 634       return "cifs";
 635     case 0x73757245:
 636       return "coda";
 637     case 0x012FF7B7:
 638       return "coh";
 639     case 0x28cd3d45:
 640       return "cramfs";
 641     case 0x1373:
 642       return "devfs";
 643     case 0x00414A53:
 644       return "efs";
 645     case 0x137D:
 646       return "ext";
 647     case 0xEF51:
 648       return "ext2";
 649     case 0xEF53:
 650       return "ext3";
 651     case 0x4244:
 652       return "hfs";
 653     case 0xF995E849:
 654       return "hpfs";
 655     case 0x958458f6:
 656       return "hugetlbfs";
 657     case 0x9660:
 658       return "isofs";
 659     case 0x72b6:
 660       return "jffs2";
 661     case 0x3153464a:
 662       return "jfs";
 663     case 0x137F:
 664       return "minix";
 665     case 0x138F:
 666       return "minix2";
 667     case 0x2468:
 668       return "minix2";
 669     case 0x2478:
 670       return "minix22";
 671     case 0x4d44:
 672       return "msdos";
 673     case 0x564c:
 674       return "ncp";
 675     case 0x6969:
 676       return "nfs";
 677     case 0x5346544e:
 678       return "ntfs";
 679     case 0x9fa1:
 680       return "openprom";
 681     case 0x9fa0:
 682       return "proc";
 683     case 0x002f:
 684       return "qnx4";
 685     case 0x52654973:
 686       return "reiserfs";
 687     case 0x7275:
 688       return "romfs";
 689     case 0x517B:
 690       return "smb";
 691     case 0x012FF7B6:
 692       return "sysv2";
 693     case 0x012FF7B5:
 694       return "sysv4";
 695     case 0x01021994:
 696       return "tmpfs";
 697     case 0x15013346:
 698       return "udf";
 699     case 0x00011954:
 700       return "ufs";
 701     case 0x9fa2:
 702       return "usbdevice";
 703     case 0xa501FCF5:
 704       return "vxfs";
 705     case 0x012FF7B4:
 706       return "xenix";
 707     case 0x58465342:
 708       return "xfs";
 709     case 0x012FD16D:
 710       return "xiafs";
 711     default:
 712       return NULL;
 713     }
 714 }
 715 #endif
 716
 717 #ifndef G_OS_WIN32
 718
 719 G_LOCK_DEFINE_STATIC(mount_info_hash);
 720 static GHashTable *mount_info_hash = NULL;
 721 static guint64 mount_info_hash_cache_time = 0;
 722
 723 typedef enum {
 724   MOUNT_INFO_READONLY = 1<<0
 725 } MountInfo;
 726
 727 static gboolean
 728 device_equal (gconstpointer v1,
 729               gconstpointer v2)
 730 {
 731   return *(dev_t *)v1 == *(dev_t *)v2;
 732 }
 733
 734 static guint
 735 device_hash (gconstpointer v)
 736 {
 737   return (guint) *(dev_t *)v;
 738 }
 739
 740 static void
 741 get_mount_info (GFileInfo             *fs_info,
 742                 const char            *path,
 743                 GFileAttributeMatcher *matcher)
 744 {
 745   struct stat buf;
 746   gboolean got_info;
 747   gpointer info_as_ptr;
 748   guint mount_info;
 749   char *mountpoint;
 750   dev_t *dev;
 751   GUnixMountEntry *mount;
 752   guint64 cache_time;
 753
 754   if (g_lstat (path, &buf) != 0)
 755     return;
 756
 757   G_LOCK (mount_info_hash);
 758
 759   if (mount_info_hash == NULL)
 760     mount_info_hash = g_hash_table_new_full (device_hash, device_equal,
 761                                              g_free, NULL);
 762
 763
 764   if (g_unix_mounts_changed_since (mount_info_hash_cache_time))
 765     g_hash_table_remove_all (mount_info_hash);
 766
 767   got_info = g_hash_table_lookup_extended (mount_info_hash,
 768                                            &buf.st_dev,
 769                                            NULL,
 770                                            &info_as_ptr);
 771
 772   G_UNLOCK (mount_info_hash);
 773
 774   mount_info = GPOINTER_TO_UINT (info_as_ptr);
 775
 776   if (!got_info)
 777     {
 778       mount_info = 0;
 779
 780       mountpoint = find_mountpoint_for (path, buf.st_dev);
 781       if (mountpoint == NULL)
 782         mountpoint = "/";
 783
 784       mount = g_unix_mount_at (mountpoint, &cache_time);
 785       if (mount)
 786         {
 787           if (g_unix_mount_is_readonly (mount))
 788             mount_info |= MOUNT_INFO_READONLY;
 789
 790           g_unix_mount_free (mount);
 791         }
 792
 793       dev = g_new0 (dev_t, 1);
 794       *dev = buf.st_dev;
 795
 796       G_LOCK (mount_info_hash);
 797       mount_info_hash_cache_time = cache_time;
 798       g_hash_table_insert (mount_info_hash, dev, GUINT_TO_POINTER (mount_info));
 799       G_UNLOCK (mount_info_hash);
 800     }
 801
 802   if (mount_info & MOUNT_INFO_READONLY)
 803     g_file_info_set_attribute_boolean (fs_info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, TRUE);
 804 }
 805
 806 #endif
 807
 808 #ifdef G_OS_WIN32
 809
 810 static gboolean
 811 is_xp_or_later (void)
 812 {
 813   static int result = -1;
 814
 815   if (result == -1)
 816     {
 817 #ifndef _MSC_VER
 818       OSVERSIONINFOEX ver_info = {0};
 819       DWORDLONG cond_mask = 0;
 820       int op = VER_GREATER_EQUAL;
 821
 822       ver_info.dwOSVersionInfoSize = sizeof ver_info;
 823       ver_info.dwMajorVersion = 5;
 824       ver_info.dwMinorVersion = 1;
 825
 826       VER_SET_CONDITION (cond_mask, VER_MAJORVERSION, op);
 827       VER_SET_CONDITION (cond_mask, VER_MINORVERSION, op);
 828
 829       result = VerifyVersionInfo (&ver_info,
 830                                   VER_MAJORVERSION | VER_MINORVERSION,
 831                                   cond_mask) != 0;
 832 #else
 833       result = ((DWORD)(LOBYTE (LOWORD (GetVersion ())))) >= 5;
 834 #endif
 835     }
 836
 837   return result;
 838 }
 839
 840 static wchar_t *
 841 get_volume_for_path (const char *path)
 842 {
 843   long len;
 844   wchar_t *wpath;
 845   wchar_t *result;
 846
 847   wpath = g_utf8_to_utf16 (path, -1, NULL, &len, NULL);
 848   result = g_new (wchar_t, len + 2);
 849
 850   if (!GetVolumePathNameW (wpath, result, len + 2))
 851     {
 852       char *msg = g_win32_error_message (GetLastError ());
 853       g_critical ("GetVolumePathName failed: %s", msg);
 854       g_free (msg);
 855       g_free (result);
 856       g_free (wpath);
 857       return NULL;
 858     }
 859
 860   len = wcslen (result);
 861   if (len > 0 && result[len-1] != L'\\')
 862     {
 863       result = g_renew (wchar_t, result, len + 2);
 864       result[len] = L'\\';
 865       result[len + 1] = 0;
 866     }
 867
 868   g_free (wpath);
 869   return result;
 870 }
 871
 872 static char *
 873 find_mountpoint_for (const char *file, dev_t dev)
 874 {
 875   wchar_t *wpath;
 876   char *utf8_path;
 877
 878   wpath = get_volume_for_path (file);
 879   if (!wpath)
 880     return NULL;
 881
 882   utf8_path = g_utf16_to_utf8 (wpath, -1, NULL, NULL, NULL);
 883
 884   g_free (wpath);
 885   return utf8_path;
 886 }
 887
 888 static void
 889 get_filesystem_readonly (GFileInfo  *info,
 890                          const char *path)
 891 {
 892   wchar_t *rootdir;
 893
 894   rootdir = get_volume_for_path (path);
 895
 896   if (rootdir)
 897     {
 898       if (is_xp_or_later ())
 899         {
 900           DWORD flags;
 901           if (GetVolumeInformationW (rootdir, NULL, 0, NULL, NULL, &flags, NULL, 0))
 902             g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY,
 903                                                (flags & FILE_READ_ONLY_VOLUME) != 0);
 904         }
 905       else
 906         {
 907           if (GetDriveTypeW (rootdir) == DRIVE_CDROM)
 908             g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, TRUE);
 909         }
 910     }
 911
 912   g_free (rootdir);
 913 }
 914
 915 #endif /* G_OS_WIN32 */
 916
 917 static GFileInfo *
 918 g_local_file_query_filesystem_info (GFile         *file,
 919                                     const char    *attributes,
 920                                     GCancellable  *cancellable,
 921                                     GError       **error)
 922 {
 923   GLocalFile *local = G_LOCAL_FILE (file);
 924   GFileInfo *info;
 925   int statfs_result = 0;
 926   gboolean no_size;
 927 #ifndef G_OS_WIN32
 928   guint64 block_size;
 929   const char *fstype;
 930 #ifdef USE_STATFS
 931   struct statfs statfs_buffer;
 932 #elif defined(USE_STATVFS)
 933   struct statvfs statfs_buffer;
 934 #endif
 935 #endif
 936   GFileAttributeMatcher *attribute_matcher;
 937
 938   no_size = FALSE;
 939
 940 #ifdef USE_STATFS
 941
 942 #if STATFS_ARGS == 2
 943   statfs_result = statfs (local->filename, &statfs_buffer);
 944 #elif STATFS_ARGS == 4
 945   statfs_result = statfs (local->filename, &statfs_buffer,
 946                           sizeof (statfs_buffer), 0);
 947 #endif
 948   block_size = statfs_buffer.f_bsize;
 949
 950 #if defined(__linux__)
 951   /* ncpfs does not know the amount of available and free space *
 952    * assuming ncpfs is linux specific, if you are on a non-linux platform
 953    * where ncpfs is available, please file a bug about it on bugzilla.gnome.org
 954    */
 955   if (statfs_buffer.f_bavail == 0 && statfs_buffer.f_bfree == 0 &&
 956       /* linux/ncp_fs.h: NCP_SUPER_MAGIC == 0x564c */
 957       statfs_buffer.f_type == 0x564c)
 958     no_size = TRUE;
 959 #endif
 960
 961 #elif defined(USE_STATVFS)
 962   statfs_result = statvfs (local->filename, &statfs_buffer);
 963   block_size = statfs_buffer.f_frsize;
 964 #endif
 965
 966   if (statfs_result == -1)
 967     {
 968       int errsv = errno;
 969
 970       g_set_error (error, G_IO_ERROR,
 971                    g_io_error_from_errno (errsv),
 972                    _("Error getting filesystem info: %s"),
 973                    g_strerror (errsv));
 974       return NULL;
 975     }
 976
 977   info = g_file_info_new ();
 978
 979   attribute_matcher = g_file_attribute_matcher_new (attributes);
 980
 981   if (!no_size &&
 982       g_file_attribute_matcher_matches (attribute_matcher,
 983                                         G_FILE_ATTRIBUTE_FILESYSTEM_FREE))
 984     {
 985 #ifdef G_OS_WIN32
 986       gchar *localdir = g_path_get_dirname (local->filename);
 987       wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
 988       ULARGE_INTEGER li;
 989
 990       g_free (localdir);
 991       if (GetDiskFreeSpaceExW (wdirname, &li, NULL, NULL))
 992         g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, (guint64)li.QuadPart);
 993       g_free (wdirname);
 994 #else
 995       g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, block_size * statfs_buffer.f_bavail);
 996 #endif
 997     }
 998   if (!no_size &&
 999       g_file_attribute_matcher_matches (attribute_matcher,
1000                                         G_FILE_ATTRIBUTE_FILESYSTEM_SIZE))
1001     {
1002 #ifdef G_OS_WIN32
1003       gchar *localdir = g_path_get_dirname (local->filename);
1004       wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
1005       ULARGE_INTEGER li;
1006
1007       g_free (localdir);
1008       if (GetDiskFreeSpaceExW (wdirname, NULL, &li, NULL))
1009         g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE,  (guint64)li.QuadPart);
1010       g_free (wdirname);
1011 #else
1012       g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, block_size * statfs_buffer.f_blocks);
1013 #endif
1014     }
1015 #ifdef USE_STATFS
1016 #if defined(HAVE_STRUCT_STATFS_F_FSTYPENAME)
1017   fstype = g_strdup(statfs_buffer.f_fstypename);
1018 #else
1019   fstype = get_fs_type (statfs_buffer.f_type);
1020 #endif
1021
1022 #elif defined(USE_STATVFS) && defined(HAVE_STRUCT_STATVFS_F_BASETYPE)
1023   fstype = g_strdup(statfs_buffer.f_basetype);
1024 #endif
1025
1026 #ifndef G_OS_WIN32
1027   if (fstype &&
1028       g_file_attribute_matcher_matches (attribute_matcher,
1029                                         G_FILE_ATTRIBUTE_FILESYSTEM_TYPE))
1030     g_file_info_set_attribute_string (info, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE, fstype);
1031 #endif
1032
1033   if (g_file_attribute_matcher_matches (attribute_matcher,
1034                                         G_FILE_ATTRIBUTE_FILESYSTEM_READONLY))
1035     {
1036 #ifdef G_OS_WIN32
1037       get_filesystem_readonly (info, local->filename);
1038 #else
1039       get_mount_info (info, local->filename, attribute_matcher);
1040 #endif
1041     }
1042
1043   g_file_attribute_matcher_unref (attribute_matcher);
1044
1045   return info;
1046 }
1047
1048 static GMount *
1049 g_local_file_find_enclosing_mount (GFile         *file,
1050                                    GCancellable  *cancellable,
1051                                    GError       **error)
1052 {
1053   GLocalFile *local = G_LOCAL_FILE (file);
1054   struct stat buf;
1055   char *mountpoint;
1056   GMount *mount;
1057
1058   if (g_lstat (local->filename, &buf) != 0)
1059     {
1060       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
1061                       /* Translators: This is an error message when trying to
1062                        * find the enclosing (user visible) mount of a file, but
1063                        * none exists. */
1064                       _("Containing mount does not exist"));
1065       return NULL;
1066     }
1067
1068   mountpoint = find_mountpoint_for (local->filename, buf.st_dev);
1069   if (mountpoint == NULL)
1070     {
1071       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
1072                       /* Translators: This is an error message when trying to
1073                        * find the enclosing (user visible) mount of a file, but
1074                        * none exists. */
1075                       _("Containing mount does not exist"));
1076       return NULL;
1077     }
1078
1079   mount = _g_mount_get_for_mount_path (mountpoint, cancellable);
1080   g_free (mountpoint);
1081   if (mount)
1082     return mount;
1083
1084   g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
1085                   /* Translators: This is an error message when trying to find
1086                    * the enclosing (user visible) mount of a file, but none
1087                    * exists. */
1088                   _("Containing mount does not exist"));
1089   return NULL;
1090 }
1091
1092 static GFile *
1093 g_local_file_set_display_name (GFile         *file,
1094                                const char    *display_name,
1095                                GCancellable  *cancellable,
1096                                GError       **error)
1097 {
1098   GLocalFile *local, *new_local;
1099   GFile *new_file, *parent;
1100   struct stat statbuf;
1101   int errsv;
1102
1103   parent = g_file_get_parent (file);
1104   if (parent == NULL)
1105     {
1106       g_set_error_literal (error, G_IO_ERROR,
1107                            G_IO_ERROR_FAILED,
1108                            _("Can't rename root directory"));
1109       return NULL;
1110     }
1111
1112   new_file = g_file_get_child_for_display_name (parent, display_name, error);
1113   g_object_unref (parent);
1114
1115   if (new_file == NULL)
1116     return NULL;
1117
1118   local = G_LOCAL_FILE (file);
1119   new_local = G_LOCAL_FILE (new_file);
1120
1121   if (!(g_lstat (new_local->filename, &statbuf) == -1 &&
1122         errno == ENOENT))
1123     {
1124       g_set_error_literal (error, G_IO_ERROR,
1125                            G_IO_ERROR_EXISTS,
1126                            _("Can't rename file, filename already exist"));
1127       return NULL;
1128     }
1129
1130   if (g_rename (local->filename, new_local->filename) == -1)
1131     {
1132       errsv = errno;
1133
1134       if (errsv == EINVAL)
1135         /* We can't get a rename file into itself error herer,
1136            so this must be an invalid filename, on e.g. FAT */
1137         g_set_error_literal (error, G_IO_ERROR,
1138                              G_IO_ERROR_INVALID_FILENAME,
1139                              _("Invalid filename"));
1140       else
1141         g_set_error (error, G_IO_ERROR,
1142                      g_io_error_from_errno (errsv),
1143                      _("Error renaming file: %s"),
1144                      g_strerror (errsv));
1145       g_object_unref (new_file);
1146       return NULL;
1147     }
1148
1149   return new_file;
1150 }
1151
1152 static GFileInfo *
1153 g_local_file_query_info (GFile                *file,
1154                          const char           *attributes,
1155                          GFileQueryInfoFlags   flags,
1156                          GCancellable         *cancellable,
1157                          GError              **error)
1158 {
1159   GLocalFile *local = G_LOCAL_FILE (file);
1160   GFileInfo *info;
1161   GFileAttributeMatcher *matcher;
1162   char *basename, *dirname;
1163   GLocalParentFileInfo parent_info;
1164
1165   matcher = g_file_attribute_matcher_new (attributes);
1166
1167   basename = g_path_get_basename (local->filename);
1168
1169   dirname = g_path_get_dirname (local->filename);
1170   _g_local_file_info_get_parent_info (dirname, matcher, &parent_info);
1171   g_free (dirname);
1172
1173   info = _g_local_file_info_get (basename, local->filename,
1174                                  matcher, flags, &parent_info,
1175                                  error);
1176
1177   g_free (basename);
1178
1179   g_file_attribute_matcher_unref (matcher);
1180
1181   return info;
1182 }
1183
1184 static GFileAttributeInfoList *
1185 g_local_file_query_settable_attributes (GFile         *file,
1186                                         GCancellable  *cancellable,
1187                                         GError       **error)
1188 {
1189   return g_file_attribute_info_list_ref (local_writable_attributes);
1190 }
1191
1192 static GFileAttributeInfoList *
1193 g_local_file_query_writable_namespaces (GFile         *file,
1194                                         GCancellable  *cancellable,
1195                                         GError       **error)
1196 {
1197   return g_file_attribute_info_list_ref (local_writable_namespaces);
1198 }
1199
1200 static gboolean
1201 g_local_file_set_attribute (GFile                *file,
1202                             const char           *attribute,
1203                             GFileAttributeType    type,
1204                             gpointer              value_p,
1205                             GFileQueryInfoFlags   flags,
1206                             GCancellable         *cancellable,
1207                             GError              **error)
1208 {
1209   GLocalFile *local = G_LOCAL_FILE (file);
1210
1211   return _g_local_file_info_set_attribute (local->filename,
1212                                            attribute,
1213                                            type,
1214                                            value_p,
1215                                            flags,
1216                                            cancellable,
1217                                            error);
1218 }
1219
1220 static gboolean
1221 g_local_file_set_attributes_from_info (GFile                *file,
1222                                        GFileInfo            *info,
1223                                        GFileQueryInfoFlags   flags,
1224                                        GCancellable         *cancellable,
1225                                        GError              **error)
1226 {
1227   GLocalFile *local = G_LOCAL_FILE (file);
1228   int res, chained_res;
1229   GFileIface *default_iface;
1230
1231   res = _g_local_file_info_set_attributes (local->filename,
1232                                            info, flags,
1233                                            cancellable,
1234                                            error);
1235
1236   if (!res)
1237     error = NULL; /* Don't write over error if further errors */
1238
1239   default_iface = g_type_default_interface_peek (G_TYPE_FILE);
1240
1241   chained_res = (default_iface->set_attributes_from_info) (file, info, flags, cancellable, error);
1242
1243   return res && chained_res;
1244 }
1245
1246 static GFileInputStream *
1247 g_local_file_read (GFile         *file,
1248                    GCancellable  *cancellable,
1249                    GError       **error)
1250 {
1251   GLocalFile *local = G_LOCAL_FILE (file);
1252   int fd;
1253   struct stat buf;
1254
1255   fd = g_open (local->filename, O_RDONLY|O_BINARY, 0);
1256   if (fd == -1)
1257     {
1258       int errsv = errno;
1259
1260       g_set_error (error, G_IO_ERROR,
1261                    g_io_error_from_errno (errsv),
1262                    _("Error opening file: %s"),
1263                    g_strerror (errsv));
1264       return NULL;
1265     }
1266
1267   if (fstat(fd, &buf) == 0 && S_ISDIR (buf.st_mode))
1268     {
1269       close (fd);
1270       g_set_error_literal (error, G_IO_ERROR,
1271                            G_IO_ERROR_IS_DIRECTORY,
1272                            _("Can't open directory"));
1273       return NULL;
1274     }
1275
1276   return _g_local_file_input_stream_new (fd);
1277 }
1278
1279 static GFileOutputStream *
1280 g_local_file_append_to (GFile             *file,
1281                         GFileCreateFlags   flags,
1282                         GCancellable      *cancellable,
1283                         GError           **error)
1284 {
1285   return _g_local_file_output_stream_append (G_LOCAL_FILE (file)->filename,
1286                                              flags, cancellable, error);
1287 }
1288
1289 static GFileOutputStream *
1290 g_local_file_create (GFile             *file,
1291                      GFileCreateFlags   flags,
1292                      GCancellable      *cancellable,
1293                      GError           **error)
1294 {
1295   return _g_local_file_output_stream_create (G_LOCAL_FILE (file)->filename,
1296                                              flags, cancellable, error);
1297 }
1298
1299 static GFileOutputStream *
1300 g_local_file_replace (GFile             *file,
1301                       const char        *etag,
1302                       gboolean           make_backup,
1303                       GFileCreateFlags   flags,
1304                       GCancellable      *cancellable,
1305                       GError           **error)
1306 {
1307   return _g_local_file_output_stream_replace (G_LOCAL_FILE (file)->filename,
1308                                               etag, make_backup, flags,
1309                                               cancellable, error);
1310 }
1311
1312
1313 static gboolean
1314 g_local_file_delete (GFile         *file,
1315                      GCancellable  *cancellable,
1316                      GError       **error)
1317 {
1318   GLocalFile *local = G_LOCAL_FILE (file);
1319
1320   if (g_remove (local->filename) == -1)
1321     {
1322       int errsv = errno;
1323
1324       /* Posix allows EEXIST too, but the more sane error
1325          is G_IO_ERROR_NOT_FOUND, and its what nautilus
1326          expects */
1327       if (errsv == EEXIST)
1328         errsv = ENOTEMPTY;
1329
1330       g_set_error (error, G_IO_ERROR,
1331                    g_io_error_from_errno (errsv),
1332                    _("Error removing file: %s"),
1333                    g_strerror (errsv));
1334       return FALSE;
1335     }
1336
1337   return TRUE;
1338 }
1339
1340 static char *
1341 strip_trailing_slashes (const char *path)
1342 {
1343   char *path_copy;
1344   int len;
1345
1346   path_copy = g_strdup (path);
1347   len = strlen (path_copy);
1348   while (len > 1 && path_copy[len-1] == '/')
1349     path_copy[--len] = 0;
1350
1351   return path_copy;
1352  }
1353
1354 static char *
1355 expand_symlink (const char *link)
1356 {
1357   char *resolved, *canonical, *parent, *link2;
1358   char symlink_value[4096];
1359 #ifdef G_OS_WIN32
1360 #else
1361   ssize_t res;
1362 #endif
1363
1364 #ifdef G_OS_WIN32
1365 #else
1366   res = readlink (link, symlink_value, sizeof (symlink_value) - 1);
1367
1368   if (res == -1)
1369     return g_strdup (link);
1370   symlink_value[res] = 0;
1371 #endif
1372
1373   if (g_path_is_absolute (symlink_value))
1374     return canonicalize_filename (symlink_value);
1375   else
1376     {
1377       link2 = strip_trailing_slashes (link);
1378       parent = g_path_get_dirname (link2);
1379       g_free (link2);
1380
1381       resolved = g_build_filename (parent, symlink_value, NULL);
1382       g_free (parent);
1383
1384       canonical = canonicalize_filename (resolved);
1385
1386       g_free (resolved);
1387
1388       return canonical;
1389     }
1390 }
1391
1392 static char *
1393 get_parent (const char *path,
1394             dev_t      *parent_dev)
1395 {
1396   char *parent, *tmp;
1397   struct stat parent_stat;
1398   int num_recursions;
1399   char *path_copy;
1400
1401   path_copy = strip_trailing_slashes (path);
1402
1403   parent = g_path_get_dirname (path_copy);
1404   if (strcmp (parent, ".") == 0 ||
1405       strcmp (parent, path_copy) == 0)
1406     {
1407       g_free (parent);
1408       g_free (path_copy);
1409       return NULL;
1410     }
1411   g_free (path_copy);
1412
1413   num_recursions = 0;
1414   do {
1415     if (g_lstat (parent, &parent_stat) != 0)
1416       {
1417         g_free (parent);
1418         return NULL;
1419       }
1420
1421     if (S_ISLNK (parent_stat.st_mode))
1422       {
1423         tmp = parent;
1424         parent = expand_symlink (parent);
1425         g_free (tmp);
1426       }
1427
1428     num_recursions++;
1429     if (num_recursions > 12)
1430       {
1431         g_free (parent);
1432         return NULL;
1433       }
1434   } while (S_ISLNK (parent_stat.st_mode));
1435
1436   *parent_dev = parent_stat.st_dev;
1437
1438   return parent;
1439 }
1440
1441 static char *
1442 expand_all_symlinks (const char *path)
1443 {
1444   char *parent, *parent_expanded;
1445   char *basename, *res;
1446   dev_t parent_dev;
1447
1448   parent = get_parent (path, &parent_dev);
1449   if (parent)
1450     {
1451       parent_expanded = expand_all_symlinks (parent);
1452       g_free (parent);
1453       basename = g_path_get_basename (path);
1454       res = g_build_filename (parent_expanded, basename, NULL);
1455       g_free (basename);
1456       g_free (parent_expanded);
1457     }
1458   else
1459     res = g_strdup (path);
1460
1461   return res;
1462 }
1463
1464 #ifndef G_OS_WIN32
1465
1466 static char *
1467 find_mountpoint_for (const char *file,
1468                      dev_t       dev)
1469 {
1470   char *dir, *parent;
1471   dev_t dir_dev, parent_dev;
1472
1473   dir = g_strdup (file);
1474   dir_dev = dev;
1475
1476   while (1)
1477     {
1478       parent = get_parent (dir, &parent_dev);
1479       if (parent == NULL)
1480         return dir;
1481
1482       if (parent_dev != dir_dev)
1483         {
1484           g_free (parent);
1485           return dir;
1486         }
1487
1488       g_free (dir);
1489       dir = parent;
1490     }
1491 }
1492
1493 static char *
1494 find_topdir_for (const char *file)
1495 {
1496   char *dir;
1497   dev_t dir_dev;
1498
1499   dir = get_parent (file, &dir_dev);
1500   if (dir == NULL)
1501     return NULL;
1502
1503   return find_mountpoint_for (dir, dir_dev);
1504 }
1505
1506 static char *
1507 get_unique_filename (const char *basename,
1508                      int         id)
1509 {
1510   const char *dot;
1511
1512   if (id == 1)
1513     return g_strdup (basename);
1514
1515   dot = strchr (basename, '.');
1516   if (dot)
1517     return g_strdup_printf ("%.*s.%d%s", (int)(dot - basename), basename, id, dot);
1518   else
1519     return g_strdup_printf ("%s.%d", basename, id);
1520 }
1521
1522 static gboolean
1523 path_has_prefix (const char *path,
1524                  const char *prefix)
1525 {
1526   int prefix_len;
1527
1528   if (prefix == NULL)
1529     return TRUE;
1530
1531   prefix_len = strlen (prefix);
1532
1533   if (strncmp (path, prefix, prefix_len) == 0 &&
1534       (prefix_len == 0 || /* empty prefix always matches */
1535        prefix[prefix_len - 1] == '/' || /* last char in prefix was a /, so it must be in path too */
1536        path[prefix_len] == 0 ||
1537        path[prefix_len] == '/'))
1538     return TRUE;
1539
1540   return FALSE;
1541 }
1542
1543 static char *
1544 try_make_relative (const char *path,
1545                    const char *base)
1546 {
1547   char *path2, *base2;
1548   char *relative;
1549
1550   path2 = expand_all_symlinks (path);
1551   base2 = expand_all_symlinks (base);
1552
1553   relative = NULL;
1554   if (path_has_prefix (path2, base2))
1555     {
1556       relative = path2 + strlen (base2);
1557       while (*relative == '/')
1558         relative ++;
1559       relative = g_strdup (relative);
1560     }
1561   g_free (path2);
1562   g_free (base2);
1563
1564   if (relative)
1565     return relative;
1566
1567   /* Failed, use abs path */
1568   return g_strdup (path);
1569 }
1570
1571 static char *
1572 escape_trash_name (char *name)
1573 {
1574   GString *str;
1575   const gchar hex[16] = "0123456789ABCDEF";
1576
1577   str = g_string_new ("");
1578
1579   while (*name != 0)
1580     {
1581       char c;
1582
1583       c = *name++;
1584
1585       if (g_ascii_isprint (c))
1586         g_string_append_c (str, c);
1587       else
1588         {
1589           g_string_append_c (str, '%');
1590           g_string_append_c (str, hex[((guchar)c) >> 4]);
1591           g_string_append_c (str, hex[((guchar)c) & 0xf]);
1592         }
1593     }
1594
1595   return g_string_free (str, FALSE);
1596 }
1597
1598 gboolean
1599 _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev)
1600 {
1601   static gsize home_dev_set = 0;
1602   static dev_t home_dev;
1603   char *topdir, *globaldir, *trashdir, *tmpname;
1604   uid_t uid;
1605   char uid_str[32];
1606   struct stat global_stat, trash_stat;
1607   gboolean res;
1608   int statres;
1609
1610   if (g_once_init_enter (&home_dev_set))
1611     {
1612       struct stat home_stat;
1613
1614       g_stat (g_get_home_dir (), &home_stat);
1615       home_dev = home_stat.st_dev;
1616       g_once_init_leave (&home_dev_set, 1);
1617     }
1618
1619   /* Assume we can trash to the home */
1620   if (dir_dev == home_dev)
1621     return TRUE;
1622
1623   topdir = find_mountpoint_for (dirname, dir_dev);
1624   if (topdir == NULL)
1625     return FALSE;
1626
1627   globaldir = g_build_filename (topdir, ".Trash", NULL);
1628   statres = g_lstat (globaldir, &global_stat);
1629  if (g_lstat (globaldir, &global_stat) == 0 &&
1630       S_ISDIR (global_stat.st_mode) &&
1631       (global_stat.st_mode & S_ISVTX) != 0)
1632     {
1633       /* got a toplevel sysadmin created dir, assume we
1634        * can trash to it (we should be able to create a dir)
1635        * This fails for the FAT case where the ownership of
1636        * that dir would be wrong though..
1637        */
1638       g_free (globaldir);
1639       g_free (topdir);
1640       return TRUE;
1641     }
1642   g_free (globaldir);
1643
1644   /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */
1645   uid = geteuid ();
1646   g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long) uid);
1647
1648   tmpname = g_strdup_printf (".Trash-%s", uid_str);
1649   trashdir = g_build_filename (topdir, tmpname, NULL);
1650   g_free (tmpname);
1651
1652   if (g_lstat (trashdir, &trash_stat) == 0)
1653     {
1654       g_free (topdir);
1655       g_free (trashdir);
1656       return
1657         S_ISDIR (trash_stat.st_mode) &&
1658         trash_stat.st_uid == uid;
1659     }
1660   g_free (trashdir);
1661
1662   /* User specific trash didn't exist, can we create it? */
1663   res = g_access (topdir, W_OK) == 0;
1664
1665   g_free (topdir);
1666
1667   return res;
1668 }
1669
1670
1671 static gboolean
1672 g_local_file_trash (GFile         *file,
1673                     GCancellable  *cancellable,
1674                     GError       **error)
1675 {
1676   GLocalFile *local = G_LOCAL_FILE (file);
1677   struct stat file_stat, home_stat;
1678   const char *homedir;
1679   char *trashdir, *topdir, *infodir, *filesdir;
1680   char *basename, *trashname, *trashfile, *infoname, *infofile;
1681   char *original_name, *original_name_escaped;
1682   int i;
1683   char *data;
1684   gboolean is_homedir_trash;
1685   char delete_time[32];
1686   int fd;
1687   struct stat trash_stat, global_stat;
1688   char *dirname, *globaldir;
1689
1690   if (g_lstat (local->filename, &file_stat) != 0)
1691     {
1692       int errsv = errno;
1693
1694       g_set_error (error, G_IO_ERROR,
1695                    g_io_error_from_errno (errsv),
1696                    _("Error trashing file: %s"),
1697                    g_strerror (errsv));
1698       return FALSE;
1699     }
1700
1701   homedir = g_get_home_dir ();
1702   g_stat (homedir, &home_stat);
1703
1704   is_homedir_trash = FALSE;
1705   trashdir = NULL;
1706   if (file_stat.st_dev == home_stat.st_dev)
1707     {
1708       is_homedir_trash = TRUE;
1709       errno = 0;
1710       trashdir = g_build_filename (g_get_user_data_dir (), "Trash", NULL);
1711       if (g_mkdir_with_parents (trashdir, 0700) < 0)
1712         {
1713           char *display_name;
1714           int errsv = errno;
1715
1716           display_name = g_filename_display_name (trashdir);
1717           g_set_error (error, G_IO_ERROR,
1718                        g_io_error_from_errno (errsv),
1719                        _("Unable to create trash dir %s: %s"),
1720                        display_name, g_strerror (errsv));
1721           g_free (display_name);
1722           g_free (trashdir);
1723           return FALSE;
1724         }
1725       topdir = g_strdup (g_get_user_data_dir ());
1726     }
1727   else
1728     {
1729       uid_t uid;
1730       char uid_str[32];
1731
1732       uid = geteuid ();
1733       g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long)uid);
1734
1735       topdir = find_topdir_for (local->filename);
1736       if (topdir == NULL)
1737         {
1738           g_set_error_literal (error, G_IO_ERROR,
1739                                G_IO_ERROR_NOT_SUPPORTED,
1740                                _("Unable to find toplevel directory for trash"));
1741           return FALSE;
1742         }
1743
1744       /* Try looking for global trash dir $topdir/.Trash/$uid */
1745       globaldir = g_build_filename (topdir, ".Trash", NULL);
1746       if (g_lstat (globaldir, &global_stat) == 0 &&
1747           S_ISDIR (global_stat.st_mode) &&
1748           (global_stat.st_mode & S_ISVTX) != 0)
1749         {
1750           trashdir = g_build_filename (globaldir, uid_str, NULL);
1751
1752           if (g_lstat (trashdir, &trash_stat) == 0)
1753             {
1754               if (!S_ISDIR (trash_stat.st_mode) ||
1755                   trash_stat.st_uid != uid)
1756                 {
1757                   /* Not a directory or not owned by user, ignore */
1758                   g_free (trashdir);
1759                   trashdir = NULL;
1760                 }
1761             }
1762           else if (g_mkdir (trashdir, 0700) == -1)
1763             {
1764               g_free (trashdir);
1765               trashdir = NULL;
1766             }
1767         }
1768       g_free (globaldir);
1769
1770       if (trashdir == NULL)
1771         {
1772           gboolean tried_create;
1773
1774           /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */
1775           dirname = g_strdup_printf (".Trash-%s", uid_str);
1776           trashdir = g_build_filename (topdir, dirname, NULL);
1777           g_free (dirname);
1778
1779           tried_create = FALSE;
1780
1781         retry:
1782           if (g_lstat (trashdir, &trash_stat) == 0)
1783             {
1784               if (!S_ISDIR (trash_stat.st_mode) ||
1785                   trash_stat.st_uid != uid)
1786                 {
1787                   /* Remove the failed directory */
1788                   if (tried_create)
1789                     g_remove (trashdir);
1790
1791                   /* Not a directory or not owned by user, ignore */
1792                   g_free (trashdir);
1793                   trashdir = NULL;
1794                 }
1795             }
1796           else
1797             {
1798               if (!tried_create &&
1799                   g_mkdir (trashdir, 0700) != -1)
1800                 {
1801                   /* Ensure that the created dir has the right uid etc.
1802                      This might fail on e.g. a FAT dir */
1803                   tried_create = TRUE;
1804                   goto retry;
1805                 }
1806               else
1807                 {
1808                   g_free (trashdir);
1809                   trashdir = NULL;
1810                 }
1811             }
1812         }
1813
1814       if (trashdir == NULL)
1815         {
1816           g_free (topdir);
1817           g_set_error_literal (error, G_IO_ERROR,
1818                                G_IO_ERROR_NOT_SUPPORTED,
1819                                _("Unable to find or create trash directory"));
1820           return FALSE;
1821         }
1822     }
1823
1824   /* Trashdir points to the trash dir with the "info" and "files" subdirectories */
1825
1826   infodir = g_build_filename (trashdir, "info", NULL);
1827   filesdir = g_build_filename (trashdir, "files", NULL);
1828   g_free (trashdir);
1829
1830   /* Make sure we have the subdirectories */
1831   if ((g_mkdir (infodir, 0700) == -1 && errno != EEXIST) ||
1832       (g_mkdir (filesdir, 0700) == -1 && errno != EEXIST))
1833     {
1834       g_free (topdir);
1835       g_free (infodir);
1836       g_free (filesdir);
1837       g_set_error_literal (error, G_IO_ERROR,
1838                            G_IO_ERROR_NOT_SUPPORTED,
1839                            _("Unable to find or create trash directory"));
1840       return FALSE;
1841     }
1842
1843   basename = g_path_get_basename (local->filename);
1844   i = 1;
1845   trashname = NULL;
1846   infofile = NULL;
1847   do {
1848     g_free (trashname);
1849     g_free (infofile);
1850
1851     trashname = get_unique_filename (basename, i++);
1852     infoname = g_strconcat (trashname, ".trashinfo", NULL);
1853     infofile = g_build_filename (infodir, infoname, NULL);
1854     g_free (infoname);
1855
1856     fd = open (infofile, O_CREAT | O_EXCL, 0666);
1857   } while (fd == -1 && errno == EEXIST);
1858
1859   g_free (basename);
1860   g_free (infodir);
1861
1862   if (fd == -1)
1863     {
1864       int errsv = errno;
1865
1866       g_free (filesdir);
1867       g_free (topdir);
1868       g_free (trashname);
1869       g_free (infofile);
1870
1871       g_set_error (error, G_IO_ERROR,
1872                    g_io_error_from_errno (errsv),
1873                    _("Unable to create trashing info file: %s"),
1874                    g_strerror (errsv));
1875       return FALSE;
1876     }
1877
1878   close (fd);
1879
1880   /* TODO: Maybe we should verify that you can delete the file from the trash
1881      before moving it? OTOH, that is hard, as it needs a recursive scan */
1882
1883   trashfile = g_build_filename (filesdir, trashname, NULL);
1884
1885   g_free (filesdir);
1886
1887   if (g_rename (local->filename, trashfile) == -1)
1888     {
1889       int errsv = errno;
1890
1891       g_free (topdir);
1892       g_free (trashname);
1893       g_free (infofile);
1894       g_free (trashfile);
1895
1896       g_set_error (error, G_IO_ERROR,
1897                    g_io_error_from_errno (errsv),
1898                    _("Unable to trash file: %s"),
1899                    g_strerror (errsv));
1900       return FALSE;
1901     }
1902
1903   g_free (trashfile);
1904
1905   /* TODO: Do we need to update mtime/atime here after the move? */
1906
1907   /* Use absolute names for homedir */
1908   if (is_homedir_trash)
1909     original_name = g_strdup (local->filename);
1910   else
1911     original_name = try_make_relative (local->filename, topdir);
1912   original_name_escaped = escape_trash_name (original_name);
1913
1914   g_free (original_name);
1915   g_free (topdir);
1916
1917   {
1918     time_t t;
1919     struct tm now;
1920     t = time (NULL);
1921     localtime_r (&t, &now);
1922     delete_time[0] = 0;
1923     strftime(delete_time, sizeof (delete_time), "%Y-%m-%dT%H:%M:%S", &now);
1924   }
1925
1926   data = g_strdup_printf ("[Trash Info]\nPath=%s\nDeletionDate=%s\n",
1927                           original_name_escaped, delete_time);
1928
1929   g_file_set_contents (infofile, data, -1, NULL);
1930   g_free (infofile);
1931   g_free (data);
1932
1933   g_free (original_name_escaped);
1934   g_free (trashname);
1935
1936   return TRUE;
1937 }
1938 #else /* G_OS_WIN32 */
1939 gboolean
1940 _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev)
1941 {
1942   return FALSE;                 /* XXX ??? */
1943 }
1944
1945 static gboolean
1946 g_local_file_trash (GFile         *file,
1947                     GCancellable  *cancellable,
1948                     GError       **error)
1949 {
1950   GLocalFile *local = G_LOCAL_FILE (file);
1951   SHFILEOPSTRUCTW op = {0};
1952   gboolean success;
1953   wchar_t *wfilename;
1954   long len;
1955
1956   wfilename = g_utf8_to_utf16 (local->filename, -1, NULL, &len, NULL);
1957   /* SHFILEOPSTRUCT.pFrom is double-zero-terminated */
1958   wfilename = g_renew (wchar_t, wfilename, len + 2);
1959   wfilename[len + 1] = 0;
1960
1961   op.wFunc = FO_DELETE;
1962   op.pFrom = wfilename;
1963   op.fFlags = FOF_ALLOWUNDO;
1964
1965   success = SHFileOperationW (&op) == 0;
1966
1967   if (success && op.fAnyOperationsAborted)
1968     {
1969       if (cancellable && !g_cancellable_is_cancelled (cancellable))
1970         g_cancellable_cancel (cancellable);
1971       g_set_error (error, G_IO_ERROR,
1972                    G_IO_ERROR_CANCELLED,
1973                    _("Unable to trash file: %s"),
1974                    _("Operation was cancelled"));
1975       success = FALSE;
1976     }
1977   else if (!success)
1978     g_set_error (error, G_IO_ERROR,
1979                  G_IO_ERROR_FAILED,
1980                  _("Unable to trash file: %s"),
1981                  _("internal error"));
1982
1983   g_free (wfilename);
1984   return success;
1985 }
1986 #endif /* G_OS_WIN32 */
1987
1988 static gboolean
1989 g_local_file_make_directory (GFile         *file,
1990                              GCancellable  *cancellable,
1991                              GError       **error)
1992 {
1993   GLocalFile *local = G_LOCAL_FILE (file);
1994
1995   if (g_mkdir (local->filename, 0755) == -1)
1996     {
1997       int errsv = errno;
1998
1999       if (errsv == EINVAL)
2000         /* This must be an invalid filename, on e.g. FAT */
2001         g_set_error_literal (error, G_IO_ERROR,
2002                              G_IO_ERROR_INVALID_FILENAME,
2003                              _("Invalid filename"));
2004       else
2005         g_set_error (error, G_IO_ERROR,
2006                      g_io_error_from_errno (errsv),
2007                      _("Error creating directory: %s"),
2008                      g_strerror (errsv));
2009       return FALSE;
2010     }
2011
2012   return TRUE;
2013 }
2014
2015 static gboolean
2016 g_local_file_make_symbolic_link (GFile         *file,
2017                                  const char    *symlink_value,
2018                                  GCancellable  *cancellable,
2019                                  GError       **error)
2020 {
2021 #ifdef HAVE_SYMLINK
2022   GLocalFile *local = G_LOCAL_FILE (file);
2023
2024   if (symlink (symlink_value, local->filename) == -1)
2025     {
2026       int errsv = errno;
2027
2028       if (errsv == EINVAL)
2029         /* This must be an invalid filename, on e.g. FAT */
2030         g_set_error_literal (error, G_IO_ERROR,
2031                              G_IO_ERROR_INVALID_FILENAME,
2032                              _("Invalid filename"));
2033       else
2034         g_set_error (error, G_IO_ERROR,
2035                      g_io_error_from_errno (errsv),
2036                      _("Error making symbolic link: %s"),
2037                      g_strerror (errsv));
2038       return FALSE;
2039     }
2040   return TRUE;
2041 #else
2042   g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Symlinks not supported");
2043   return FALSE;
2044 #endif
2045 }
2046
2047
2048 static gboolean
2049 g_local_file_copy (GFile                  *source,
2050                    GFile                  *destination,
2051                    GFileCopyFlags          flags,
2052                    GCancellable           *cancellable,
2053                    GFileProgressCallback   progress_callback,
2054                    gpointer                progress_callback_data,
2055                    GError                **error)
2056 {
2057   /* Fall back to default copy */
2058   g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Copy not supported");
2059   return FALSE;
2060 }
2061
2062 static gboolean
2063 g_local_file_move (GFile                  *source,
2064                    GFile                  *destination,
2065                    GFileCopyFlags          flags,
2066                    GCancellable           *cancellable,
2067                    GFileProgressCallback   progress_callback,
2068                    gpointer                progress_callback_data,
2069                    GError                **error)
2070 {
2071   GLocalFile *local_source, *local_destination;
2072   struct stat statbuf;
2073   gboolean destination_exist, source_is_dir;
2074   char *backup_name;
2075   int res;
2076   off_t source_size;
2077
2078   if (!G_IS_LOCAL_FILE (source) ||
2079       !G_IS_LOCAL_FILE (destination))
2080     {
2081       /* Fall back to default move */
2082       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Move not supported");
2083       return FALSE;
2084     }
2085
2086   local_source = G_LOCAL_FILE (source);
2087   local_destination = G_LOCAL_FILE (destination);
2088
2089   res = g_lstat (local_source->filename, &statbuf);
2090   if (res == -1)
2091     {
2092       int errsv = errno;
2093
2094       g_set_error (error, G_IO_ERROR,
2095                    g_io_error_from_errno (errsv),
2096                    _("Error moving file: %s"),
2097                    g_strerror (errsv));
2098       return FALSE;
2099     }
2100
2101   source_is_dir = S_ISDIR (statbuf.st_mode);
2102   source_size = statbuf.st_size;
2103
2104   destination_exist = FALSE;
2105   res = g_lstat (local_destination->filename, &statbuf);
2106   if (res == 0)
2107     {
2108       destination_exist = TRUE; /* Target file exists */
2109
2110       if (flags & G_FILE_COPY_OVERWRITE)
2111         {
2112           /* Always fail on dirs, even with overwrite */
2113           if (S_ISDIR (statbuf.st_mode))
2114             {
2115               if (source_is_dir)
2116                 g_set_error_literal (error,
2117                                      G_IO_ERROR,
2118                                      G_IO_ERROR_WOULD_MERGE,
2119                                      _("Can't move directory over directory"));
2120               else
2121                 g_set_error_literal (error,
2122                                      G_IO_ERROR,
2123                                      G_IO_ERROR_IS_DIRECTORY,
2124                                      _("Can't copy over directory"));
2125               return FALSE;
2126             }
2127         }
2128       else
2129         {
2130           g_set_error_literal (error,
2131                                G_IO_ERROR,
2132                                G_IO_ERROR_EXISTS,
2133                                _("Target file exists"));
2134           return FALSE;
2135         }
2136     }
2137
2138   if (flags & G_FILE_COPY_BACKUP && destination_exist)
2139     {
2140       backup_name = g_strconcat (local_destination->filename, "~", NULL);
2141       if (g_rename (local_destination->filename, backup_name) == -1)
2142         {
2143           g_set_error_literal (error,
2144                                G_IO_ERROR,
2145                                G_IO_ERROR_CANT_CREATE_BACKUP,
2146                                _("Backup file creation failed"));
2147           g_free (backup_name);
2148           return FALSE;
2149         }
2150       g_free (backup_name);
2151       destination_exist = FALSE; /* It did, but no more */
2152     }
2153
2154   if (source_is_dir && destination_exist && (flags & G_FILE_COPY_OVERWRITE))
2155     {
2156       /* Source is a dir, destination exists (and is not a dir, because that would have failed
2157          earlier), and we're overwriting. Manually remove the target so we can do the rename. */
2158       res = g_unlink (local_destination->filename);
2159       if (res == -1)
2160         {
2161           int errsv = errno;
2162
2163           g_set_error (error, G_IO_ERROR,
2164                        g_io_error_from_errno (errsv),
2165                        _("Error removing target file: %s"),
2166                        g_strerror (errsv));
2167           return FALSE;
2168         }
2169     }
2170
2171   if (g_rename (local_source->filename, local_destination->filename) == -1)
2172     {
2173       int errsv = errno;
2174
2175       if (errsv == EXDEV)
2176         /* This will cause the fallback code to run */
2177         g_set_error_literal (error, G_IO_ERROR,
2178                              G_IO_ERROR_NOT_SUPPORTED,
2179                              _("Move between mounts not supported"));
2180       else if (errsv == EINVAL)
2181         /* This must be an invalid filename, on e.g. FAT, or
2182            we're trying to move the file into itself...
2183            We return invalid filename for both... */
2184         g_set_error_literal (error, G_IO_ERROR,
2185                              G_IO_ERROR_INVALID_FILENAME,
2186                              _("Invalid filename"));
2187       else
2188         g_set_error (error, G_IO_ERROR,
2189                      g_io_error_from_errno (errsv),
2190                      _("Error moving file: %s"),
2191                      g_strerror (errsv));
2192       return FALSE;
2193     }
2194
2195   /* Make sure we send full copied size */
2196   if (progress_callback)
2197     progress_callback (source_size, source_size, progress_callback_data);
2198
2199   return TRUE;
2200 }
2201
2202 static GFileMonitor*
2203 g_local_file_monitor_dir (GFile             *file,
2204                           GFileMonitorFlags  flags,
2205                           GCancellable      *cancellable,
2206                           GError           **error)
2207 {
2208   GLocalFile* local_file = G_LOCAL_FILE(file);
2209   return _g_local_directory_monitor_new (local_file->filename, flags, error);
2210 }
2211
2212 static GFileMonitor*
2213 g_local_file_monitor_file (GFile             *file,
2214                            GFileMonitorFlags  flags,
2215                            GCancellable      *cancellable,
2216                            GError           **error)
2217 {
2218   GLocalFile* local_file = G_LOCAL_FILE(file);
2219   return _g_local_file_monitor_new (local_file->filename, flags, error);
2220 }
2221
2222 static void
2223 g_local_file_file_iface_init (GFileIface *iface)
2224 {
2225   iface->dup = g_local_file_dup;
2226   iface->hash = g_local_file_hash;
2227   iface->equal = g_local_file_equal;
2228   iface->is_native = g_local_file_is_native;
2229   iface->has_uri_scheme = g_local_file_has_uri_scheme;
2230   iface->get_uri_scheme = g_local_file_get_uri_scheme;
2231   iface->get_basename = g_local_file_get_basename;
2232   iface->get_path = g_local_file_get_path;
2233   iface->get_uri = g_local_file_get_uri;
2234   iface->get_parse_name = g_local_file_get_parse_name;
2235   iface->get_parent = g_local_file_get_parent;
2236   iface->prefix_matches = g_local_file_prefix_matches;
2237   iface->get_relative_path = g_local_file_get_relative_path;
2238   iface->resolve_relative_path = g_local_file_resolve_relative_path;
2239   iface->get_child_for_display_name = g_local_file_get_child_for_display_name;
2240   iface->set_display_name = g_local_file_set_display_name;
2241   iface->enumerate_children = g_local_file_enumerate_children;
2242   iface->query_info = g_local_file_query_info;
2243   iface->query_filesystem_info = g_local_file_query_filesystem_info;
2244   iface->find_enclosing_mount = g_local_file_find_enclosing_mount;
2245   iface->query_settable_attributes = g_local_file_query_settable_attributes;
2246   iface->query_writable_namespaces = g_local_file_query_writable_namespaces;
2247   iface->set_attribute = g_local_file_set_attribute;
2248   iface->set_attributes_from_info = g_local_file_set_attributes_from_info;
2249   iface->read_fn = g_local_file_read;
2250   iface->append_to = g_local_file_append_to;
2251   iface->create = g_local_file_create;
2252   iface->replace = g_local_file_replace;
2253   iface->delete_file = g_local_file_delete;
2254   iface->trash = g_local_file_trash;
2255   iface->make_directory = g_local_file_make_directory;
2256   iface->make_symbolic_link = g_local_file_make_symbolic_link;
2257   iface->copy = g_local_file_copy;
2258   iface->move = g_local_file_move;
2259   iface->monitor_dir = g_local_file_monitor_dir;
2260   iface->monitor_file = g_local_file_monitor_file;
2261 }