2 * io.c: File, console and find handles
5 * Dick Porter (dick@ximian.com)
7 * (C) 2002 Ximian, Inc.
8 * Copyright (c) 2002-2006 Novell, Inc.
9 * Copyright 2011 Xamarin Inc (http://www.xamarin.com).
19 #ifdef HAVE_SYS_STATVFS_H
20 #include <sys/statvfs.h>
22 #if defined(HAVE_SYS_STATFS_H)
23 #include <sys/statfs.h>
25 #if defined(HAVE_SYS_PARAM_H) && defined(HAVE_SYS_MOUNT_H)
26 #include <sys/param.h>
27 #include <sys/mount.h>
29 #include <sys/types.h>
33 #include <sys/ioctl.h>
35 #include <mono/utils/linux_magic.h>
38 #include <mono/io-layer/wapi.h>
39 #include <mono/io-layer/wapi-private.h>
40 #include <mono/io-layer/handles-private.h>
41 #include <mono/io-layer/io-private.h>
42 #include <mono/io-layer/timefuncs-private.h>
43 #include <mono/io-layer/thread-private.h>
44 #include <mono/io-layer/io-portability.h>
45 #include <mono/utils/strenc.h>
46 #include <mono/utils/mono-once.h>
49 #define DEBUG(...) g_message(__VA_ARGS__)
50 #define DEBUG_ENABLED 1
55 static void file_close (gpointer handle, gpointer data);
56 static WapiFileType file_getfiletype(void);
57 static gboolean file_read(gpointer handle, gpointer buffer,
58 guint32 numbytes, guint32 *bytesread,
59 WapiOverlapped *overlapped);
60 static gboolean file_write(gpointer handle, gconstpointer buffer,
61 guint32 numbytes, guint32 *byteswritten,
62 WapiOverlapped *overlapped);
63 static gboolean file_flush(gpointer handle);
64 static guint32 file_seek(gpointer handle, gint32 movedistance,
65 gint32 *highmovedistance, WapiSeekMethod method);
66 static gboolean file_setendoffile(gpointer handle);
67 static guint32 file_getfilesize(gpointer handle, guint32 *highsize);
68 static gboolean file_getfiletime(gpointer handle, WapiFileTime *create_time,
69 WapiFileTime *last_access,
70 WapiFileTime *last_write);
71 static gboolean file_setfiletime(gpointer handle,
72 const WapiFileTime *create_time,
73 const WapiFileTime *last_access,
74 const WapiFileTime *last_write);
75 static guint32 GetDriveTypeFromPath (const gchar *utf8_root_path_name);
77 /* File handle is only signalled for overlapped IO */
78 struct _WapiHandleOps _wapi_file_ops = {
79 file_close, /* close */
83 NULL, /* special_wait */
87 void _wapi_file_details (gpointer handle_info)
89 struct _WapiHandle_file *file = (struct _WapiHandle_file *)handle_info;
91 g_print ("[%20s] acc: %c%c%c, shr: %c%c%c, attrs: %5u",
93 file->fileaccess&GENERIC_READ?'R':'.',
94 file->fileaccess&GENERIC_WRITE?'W':'.',
95 file->fileaccess&GENERIC_EXECUTE?'X':'.',
96 file->sharemode&FILE_SHARE_READ?'R':'.',
97 file->sharemode&FILE_SHARE_WRITE?'W':'.',
98 file->sharemode&FILE_SHARE_DELETE?'D':'.',
102 static void console_close (gpointer handle, gpointer data);
103 static WapiFileType console_getfiletype(void);
104 static gboolean console_read(gpointer handle, gpointer buffer,
105 guint32 numbytes, guint32 *bytesread,
106 WapiOverlapped *overlapped);
107 static gboolean console_write(gpointer handle, gconstpointer buffer,
108 guint32 numbytes, guint32 *byteswritten,
109 WapiOverlapped *overlapped);
111 /* Console is mostly the same as file, except it can block waiting for
114 struct _WapiHandleOps _wapi_console_ops = {
115 console_close, /* close */
119 NULL, /* special_wait */
123 void _wapi_console_details (gpointer handle_info)
125 _wapi_file_details (handle_info);
128 /* Find handle has no ops.
130 struct _WapiHandleOps _wapi_find_ops = {
135 NULL, /* special_wait */
139 static void pipe_close (gpointer handle, gpointer data);
140 static WapiFileType pipe_getfiletype (void);
141 static gboolean pipe_read (gpointer handle, gpointer buffer, guint32 numbytes,
142 guint32 *bytesread, WapiOverlapped *overlapped);
143 static gboolean pipe_write (gpointer handle, gconstpointer buffer,
144 guint32 numbytes, guint32 *byteswritten,
145 WapiOverlapped *overlapped);
149 struct _WapiHandleOps _wapi_pipe_ops = {
150 pipe_close, /* close */
154 NULL, /* special_wait */
158 void _wapi_pipe_details (gpointer handle_info)
160 _wapi_file_details (handle_info);
163 static const struct {
164 /* File, console and pipe handles */
165 WapiFileType (*getfiletype)(void);
167 /* File, console and pipe handles */
168 gboolean (*readfile)(gpointer handle, gpointer buffer,
169 guint32 numbytes, guint32 *bytesread,
170 WapiOverlapped *overlapped);
171 gboolean (*writefile)(gpointer handle, gconstpointer buffer,
172 guint32 numbytes, guint32 *byteswritten,
173 WapiOverlapped *overlapped);
174 gboolean (*flushfile)(gpointer handle);
177 guint32 (*seek)(gpointer handle, gint32 movedistance,
178 gint32 *highmovedistance, WapiSeekMethod method);
179 gboolean (*setendoffile)(gpointer handle);
180 guint32 (*getfilesize)(gpointer handle, guint32 *highsize);
181 gboolean (*getfiletime)(gpointer handle, WapiFileTime *create_time,
182 WapiFileTime *last_access,
183 WapiFileTime *last_write);
184 gboolean (*setfiletime)(gpointer handle,
185 const WapiFileTime *create_time,
186 const WapiFileTime *last_access,
187 const WapiFileTime *last_write);
188 } io_ops[WAPI_HANDLE_COUNT]={
189 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
192 file_read, file_write,
193 file_flush, file_seek,
199 {console_getfiletype,
202 NULL, NULL, NULL, NULL, NULL, NULL},
204 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
206 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
208 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
210 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
211 /* socket (will need at least read and write) */
212 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
214 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
216 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
221 NULL, NULL, NULL, NULL, NULL, NULL},
224 static mono_once_t io_ops_once=MONO_ONCE_INIT;
225 static gboolean lock_while_writing = FALSE;
227 static void io_ops_init (void)
229 /* _wapi_handle_register_capabilities (WAPI_HANDLE_FILE, */
230 /* WAPI_HANDLE_CAP_WAIT); */
231 /* _wapi_handle_register_capabilities (WAPI_HANDLE_CONSOLE, */
232 /* WAPI_HANDLE_CAP_WAIT); */
234 if (g_getenv ("MONO_STRICT_IO_EMULATION") != NULL) {
235 lock_while_writing = TRUE;
239 /* Some utility functions.
243 * Check if a file is writable by the current user.
245 * This is is a best effort kind of thing. It assumes a reasonable sane set
246 * of permissions by the underlying OS.
248 * We assume that basic unix permission bits are authoritative. Which might not
249 * be the case under systems with extended permissions systems (posix ACLs, SELinux, OSX/iOS sandboxing, etc)
251 * The choice of access as the fallback is due to the expected lower overhead compared to trying to open the file.
253 * The only expected problem with using access are for root, setuid or setgid programs as access is not consistent
254 * under those situations. It's to be expected that this should not happen in practice as those bits are very dangerous
255 * and should not be used with a dynamic runtime.
258 is_file_writable (struct stat *st, const char *path)
260 /* Is it globally writable? */
261 if (st->st_mode & S_IWOTH)
264 /* Am I the owner? */
265 if ((st->st_uid == geteuid ()) && (st->st_mode & S_IWUSR))
268 /* Am I in the same group? */
269 if ((st->st_gid == getegid ()) && (st->st_mode & S_IWGRP))
272 /* Fallback to using access(2). It's not ideal as it might not take into consideration euid/egid
273 * but it's the only sane option we have on unix.
275 return access (path, W_OK) == 0;
279 static guint32 _wapi_stat_to_file_attributes (const gchar *pathname,
286 /* FIXME: this could definitely be better, but there seems to
287 * be no pattern to the attributes that are set
290 /* Sockets (0140000) != Directory (040000) + Regular file (0100000) */
291 if (S_ISSOCK (buf->st_mode))
292 buf->st_mode &= ~S_IFSOCK; /* don't consider socket protection */
294 filename = _wapi_basename (pathname);
296 if (S_ISDIR (buf->st_mode)) {
297 attrs = FILE_ATTRIBUTE_DIRECTORY;
298 if (!is_file_writable (buf, pathname)) {
299 attrs |= FILE_ATTRIBUTE_READONLY;
301 if (filename[0] == '.') {
302 attrs |= FILE_ATTRIBUTE_HIDDEN;
305 if (!is_file_writable (buf, pathname)) {
306 attrs = FILE_ATTRIBUTE_READONLY;
308 if (filename[0] == '.') {
309 attrs |= FILE_ATTRIBUTE_HIDDEN;
311 } else if (filename[0] == '.') {
312 attrs = FILE_ATTRIBUTE_HIDDEN;
314 attrs = FILE_ATTRIBUTE_NORMAL;
319 if (S_ISLNK (lbuf->st_mode)) {
320 attrs |= FILE_ATTRIBUTE_REPARSE_POINT;
330 _wapi_set_last_error_from_errno (void)
332 SetLastError (_wapi_get_win32_file_error (errno));
335 static void _wapi_set_last_path_error_from_errno (const gchar *dir,
338 if (errno == ENOENT) {
339 /* Check the path - if it's a missing directory then
340 * we need to set PATH_NOT_FOUND not FILE_NOT_FOUND
346 dirname = _wapi_dirname (path);
348 dirname = g_strdup (dir);
351 if (_wapi_access (dirname, F_OK) == 0) {
352 SetLastError (ERROR_FILE_NOT_FOUND);
354 SetLastError (ERROR_PATH_NOT_FOUND);
359 _wapi_set_last_error_from_errno ();
365 static void file_close (gpointer handle, gpointer data)
367 struct _WapiHandle_file *file_handle = (struct _WapiHandle_file *)data;
368 int fd = file_handle->fd;
370 DEBUG("%s: closing file handle %p [%s]", __func__, handle,
371 file_handle->filename);
373 if (file_handle->attrs & FILE_FLAG_DELETE_ON_CLOSE)
374 _wapi_unlink (file_handle->filename);
376 g_free (file_handle->filename);
378 if (file_handle->share_info)
379 _wapi_handle_share_release (file_handle->share_info);
384 static WapiFileType file_getfiletype(void)
386 return(FILE_TYPE_DISK);
389 static gboolean file_read(gpointer handle, gpointer buffer,
390 guint32 numbytes, guint32 *bytesread,
391 WapiOverlapped *overlapped)
393 struct _WapiHandle_file *file_handle;
397 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
398 (gpointer *)&file_handle);
400 g_warning ("%s: error looking up file handle %p", __func__,
402 SetLastError (ERROR_INVALID_HANDLE);
406 fd = file_handle->fd;
407 if(bytesread!=NULL) {
411 if(!(file_handle->fileaccess & GENERIC_READ) &&
412 !(file_handle->fileaccess & GENERIC_ALL)) {
413 DEBUG("%s: handle %p doesn't have GENERIC_READ access: %u",
414 __func__, handle, file_handle->fileaccess);
416 SetLastError (ERROR_ACCESS_DENIED);
421 ret = read (fd, buffer, numbytes);
422 } while (ret == -1 && errno == EINTR &&
423 !_wapi_thread_cur_apc_pending());
428 DEBUG("%s: read of handle %p error: %s", __func__,
429 handle, strerror(err));
430 SetLastError (_wapi_get_win32_file_error (err));
434 if (bytesread != NULL) {
441 static gboolean file_write(gpointer handle, gconstpointer buffer,
442 guint32 numbytes, guint32 *byteswritten,
443 WapiOverlapped *overlapped G_GNUC_UNUSED)
445 struct _WapiHandle_file *file_handle;
448 off_t current_pos = 0;
450 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
451 (gpointer *)&file_handle);
453 g_warning ("%s: error looking up file handle %p", __func__,
455 SetLastError (ERROR_INVALID_HANDLE);
459 fd = file_handle->fd;
461 if(byteswritten!=NULL) {
465 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
466 !(file_handle->fileaccess & GENERIC_ALL)) {
467 DEBUG("%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
469 SetLastError (ERROR_ACCESS_DENIED);
473 if (lock_while_writing) {
474 /* Need to lock the region we're about to write to,
475 * because we only do advisory locking on POSIX
478 current_pos = lseek (fd, (off_t)0, SEEK_CUR);
479 if (current_pos == -1) {
480 DEBUG ("%s: handle %p lseek failed: %s", __func__,
481 handle, strerror (errno));
482 _wapi_set_last_error_from_errno ();
486 if (_wapi_lock_file_region (fd, current_pos,
487 numbytes) == FALSE) {
488 /* The error has already been set */
494 ret = write (fd, buffer, numbytes);
495 } while (ret == -1 && errno == EINTR &&
496 !_wapi_thread_cur_apc_pending());
498 if (lock_while_writing) {
499 _wapi_unlock_file_region (fd, current_pos, numbytes);
503 if (errno == EINTR) {
506 _wapi_set_last_error_from_errno ();
508 DEBUG("%s: write of handle %p error: %s",
509 __func__, handle, strerror(errno));
514 if (byteswritten != NULL) {
520 static gboolean file_flush(gpointer handle)
522 struct _WapiHandle_file *file_handle;
526 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
527 (gpointer *)&file_handle);
529 g_warning ("%s: error looking up file handle %p", __func__,
531 SetLastError (ERROR_INVALID_HANDLE);
535 fd = file_handle->fd;
537 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
538 !(file_handle->fileaccess & GENERIC_ALL)) {
539 DEBUG("%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
541 SetLastError (ERROR_ACCESS_DENIED);
547 DEBUG("%s: fsync of handle %p error: %s", __func__, handle,
550 _wapi_set_last_error_from_errno ();
557 static guint32 file_seek(gpointer handle, gint32 movedistance,
558 gint32 *highmovedistance, WapiSeekMethod method)
560 struct _WapiHandle_file *file_handle;
562 gint64 offset, newpos;
566 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
567 (gpointer *)&file_handle);
569 g_warning ("%s: error looking up file handle %p", __func__,
571 SetLastError (ERROR_INVALID_HANDLE);
572 return(INVALID_SET_FILE_POINTER);
575 fd = file_handle->fd;
577 if(!(file_handle->fileaccess & GENERIC_READ) &&
578 !(file_handle->fileaccess & GENERIC_WRITE) &&
579 !(file_handle->fileaccess & GENERIC_ALL)) {
580 DEBUG ("%s: handle %p doesn't have GENERIC_READ or GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
582 SetLastError (ERROR_ACCESS_DENIED);
583 return(INVALID_SET_FILE_POINTER);
597 DEBUG("%s: invalid seek type %d", __func__, method);
599 SetLastError (ERROR_INVALID_PARAMETER);
600 return(INVALID_SET_FILE_POINTER);
603 #ifdef HAVE_LARGE_FILE_SUPPORT
604 if(highmovedistance==NULL) {
606 DEBUG("%s: setting offset to %lld (low %d)", __func__,
607 offset, movedistance);
609 offset=((gint64) *highmovedistance << 32) | (guint32)movedistance;
611 DEBUG("%s: setting offset to %lld 0x%llx (high %d 0x%x, low %d 0x%x)", __func__, offset, offset, *highmovedistance, *highmovedistance, movedistance, movedistance);
617 DEBUG ("%s: moving handle %p by %lld bytes from %d", __func__,
618 handle, (long long)offset, whence);
620 #ifdef PLATFORM_ANDROID
621 /* bionic doesn't support -D_FILE_OFFSET_BITS=64 */
622 newpos=lseek64(fd, offset, whence);
624 newpos=lseek(fd, offset, whence);
627 DEBUG("%s: lseek on handle %p returned error %s",
628 __func__, handle, strerror(errno));
630 _wapi_set_last_error_from_errno ();
631 return(INVALID_SET_FILE_POINTER);
634 DEBUG ("%s: lseek returns %lld", __func__, newpos);
636 #ifdef HAVE_LARGE_FILE_SUPPORT
637 ret=newpos & 0xFFFFFFFF;
638 if(highmovedistance!=NULL) {
639 *highmovedistance=newpos>>32;
643 if(highmovedistance!=NULL) {
644 /* Accurate, but potentially dodgy :-) */
649 DEBUG ("%s: move of handle %p returning %d/%d", __func__,
650 handle, ret, highmovedistance==NULL?0:*highmovedistance);
655 static gboolean file_setendoffile(gpointer handle)
657 struct _WapiHandle_file *file_handle;
663 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
664 (gpointer *)&file_handle);
666 g_warning ("%s: error looking up file handle %p", __func__,
668 SetLastError (ERROR_INVALID_HANDLE);
671 fd = file_handle->fd;
673 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
674 !(file_handle->fileaccess & GENERIC_ALL)) {
675 DEBUG("%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
677 SetLastError (ERROR_ACCESS_DENIED);
681 /* Find the current file position, and the file length. If
682 * the file position is greater than the length, write to
683 * extend the file with a hole. If the file position is less
684 * than the length, truncate the file.
687 ret=fstat(fd, &statbuf);
689 DEBUG ("%s: handle %p fstat failed: %s", __func__,
690 handle, strerror(errno));
692 _wapi_set_last_error_from_errno ();
696 pos=lseek(fd, (off_t)0, SEEK_CUR);
698 DEBUG("%s: handle %p lseek failed: %s", __func__,
699 handle, strerror(errno));
701 _wapi_set_last_error_from_errno ();
705 #ifdef FTRUNCATE_DOESNT_EXTEND
706 off_t size = statbuf.st_size;
707 /* I haven't bothered to write the configure.ac stuff for this
708 * because I don't know if any platform needs it. I'm leaving
709 * this code just in case though
712 /* Extend the file. Use write() here, because some
713 * manuals say that ftruncate() behaviour is undefined
714 * when the file needs extending. The POSIX spec says
715 * that on XSI-conformant systems it extends, so if
716 * every system we care about conforms, then we can
720 ret = write (fd, "", 1);
721 } while (ret == -1 && errno == EINTR &&
722 !_wapi_thread_cur_apc_pending());
725 DEBUG("%s: handle %p extend write failed: %s", __func__, handle, strerror(errno));
727 _wapi_set_last_error_from_errno ();
731 /* And put the file position back after the write */
732 ret = lseek (fd, pos, SEEK_SET);
734 DEBUG ("%s: handle %p second lseek failed: %s",
735 __func__, handle, strerror(errno));
737 _wapi_set_last_error_from_errno ();
743 /* Native Client has no ftruncate function, even in standalone sel_ldr. */
744 #ifndef __native_client__
745 /* always truncate, because the extend write() adds an extra
746 * byte to the end of the file
749 ret=ftruncate(fd, pos);
751 while (ret==-1 && errno==EINTR && !_wapi_thread_cur_apc_pending());
753 DEBUG("%s: handle %p ftruncate failed: %s", __func__,
754 handle, strerror(errno));
756 _wapi_set_last_error_from_errno ();
764 static guint32 file_getfilesize(gpointer handle, guint32 *highsize)
766 struct _WapiHandle_file *file_handle;
773 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
774 (gpointer *)&file_handle);
776 g_warning ("%s: error looking up file handle %p", __func__,
778 SetLastError (ERROR_INVALID_HANDLE);
779 return(INVALID_FILE_SIZE);
781 fd = file_handle->fd;
783 if(!(file_handle->fileaccess & GENERIC_READ) &&
784 !(file_handle->fileaccess & GENERIC_WRITE) &&
785 !(file_handle->fileaccess & GENERIC_ALL)) {
786 DEBUG("%s: handle %p doesn't have GENERIC_READ or GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
788 SetLastError (ERROR_ACCESS_DENIED);
789 return(INVALID_FILE_SIZE);
792 /* If the file has a size with the low bits 0xFFFFFFFF the
793 * caller can't tell if this is an error, so clear the error
796 SetLastError (ERROR_SUCCESS);
798 ret = fstat(fd, &statbuf);
800 DEBUG ("%s: handle %p fstat failed: %s", __func__,
801 handle, strerror(errno));
803 _wapi_set_last_error_from_errno ();
804 return(INVALID_FILE_SIZE);
807 /* fstat indicates block devices as zero-length, so go a different path */
809 if (S_ISBLK(statbuf.st_mode)) {
811 if (ioctl(fd, BLKGETSIZE64, &bigsize) < 0) {
812 DEBUG ("%s: handle %p ioctl BLKGETSIZE64 failed: %s",
813 __func__, handle, strerror(errno));
815 _wapi_set_last_error_from_errno ();
816 return(INVALID_FILE_SIZE);
819 size = bigsize & 0xFFFFFFFF;
820 if (highsize != NULL) {
821 *highsize = bigsize>>32;
824 DEBUG ("%s: Returning block device size %d/%d",
825 __func__, size, *highsize);
831 #ifdef HAVE_LARGE_FILE_SUPPORT
832 size = statbuf.st_size & 0xFFFFFFFF;
833 if (highsize != NULL) {
834 *highsize = statbuf.st_size>>32;
837 if (highsize != NULL) {
838 /* Accurate, but potentially dodgy :-) */
841 size = statbuf.st_size;
844 DEBUG ("%s: Returning size %d/%d", __func__, size, *highsize);
849 static gboolean file_getfiletime(gpointer handle, WapiFileTime *create_time,
850 WapiFileTime *last_access,
851 WapiFileTime *last_write)
853 struct _WapiHandle_file *file_handle;
856 guint64 create_ticks, access_ticks, write_ticks;
859 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
860 (gpointer *)&file_handle);
862 g_warning ("%s: error looking up file handle %p", __func__,
864 SetLastError (ERROR_INVALID_HANDLE);
867 fd = file_handle->fd;
869 if(!(file_handle->fileaccess & GENERIC_READ) &&
870 !(file_handle->fileaccess & GENERIC_ALL)) {
871 DEBUG("%s: handle %p doesn't have GENERIC_READ access: %u",
872 __func__, handle, file_handle->fileaccess);
874 SetLastError (ERROR_ACCESS_DENIED);
878 ret=fstat(fd, &statbuf);
880 DEBUG("%s: handle %p fstat failed: %s", __func__, handle,
883 _wapi_set_last_error_from_errno ();
887 DEBUG("%s: atime: %ld ctime: %ld mtime: %ld", __func__,
888 statbuf.st_atime, statbuf.st_ctime,
891 /* Try and guess a meaningful create time by using the older
894 /* The magic constant comes from msdn documentation
895 * "Converting a time_t Value to a File Time"
897 if(statbuf.st_atime < statbuf.st_ctime) {
898 create_ticks=((guint64)statbuf.st_atime*10000000)
899 + 116444736000000000ULL;
901 create_ticks=((guint64)statbuf.st_ctime*10000000)
902 + 116444736000000000ULL;
905 access_ticks=((guint64)statbuf.st_atime*10000000)+116444736000000000ULL;
906 write_ticks=((guint64)statbuf.st_mtime*10000000)+116444736000000000ULL;
908 DEBUG("%s: aticks: %llu cticks: %llu wticks: %llu", __func__,
909 access_ticks, create_ticks, write_ticks);
911 if(create_time!=NULL) {
912 create_time->dwLowDateTime = create_ticks & 0xFFFFFFFF;
913 create_time->dwHighDateTime = create_ticks >> 32;
916 if(last_access!=NULL) {
917 last_access->dwLowDateTime = access_ticks & 0xFFFFFFFF;
918 last_access->dwHighDateTime = access_ticks >> 32;
921 if(last_write!=NULL) {
922 last_write->dwLowDateTime = write_ticks & 0xFFFFFFFF;
923 last_write->dwHighDateTime = write_ticks >> 32;
929 static gboolean file_setfiletime(gpointer handle,
930 const WapiFileTime *create_time G_GNUC_UNUSED,
931 const WapiFileTime *last_access,
932 const WapiFileTime *last_write)
934 struct _WapiHandle_file *file_handle;
936 struct utimbuf utbuf;
938 guint64 access_ticks, write_ticks;
941 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
942 (gpointer *)&file_handle);
944 g_warning ("%s: error looking up file handle %p", __func__,
946 SetLastError (ERROR_INVALID_HANDLE);
949 fd = file_handle->fd;
951 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
952 !(file_handle->fileaccess & GENERIC_ALL)) {
953 DEBUG("%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
955 SetLastError (ERROR_ACCESS_DENIED);
959 if(file_handle->filename == NULL) {
960 DEBUG("%s: handle %p unknown filename", __func__, handle);
962 SetLastError (ERROR_INVALID_HANDLE);
966 /* Get the current times, so we can put the same times back in
967 * the event that one of the FileTime structs is NULL
969 ret=fstat (fd, &statbuf);
971 DEBUG("%s: handle %p fstat failed: %s", __func__, handle,
974 SetLastError (ERROR_INVALID_PARAMETER);
978 if(last_access!=NULL) {
979 access_ticks=((guint64)last_access->dwHighDateTime << 32) +
980 last_access->dwLowDateTime;
981 /* This is (time_t)0. We can actually go to INT_MIN,
982 * but this will do for now.
984 if (access_ticks < 116444736000000000ULL) {
985 DEBUG ("%s: attempt to set access time too early",
987 SetLastError (ERROR_INVALID_PARAMETER);
991 utbuf.actime=(access_ticks - 116444736000000000ULL) / 10000000;
993 utbuf.actime=statbuf.st_atime;
996 if(last_write!=NULL) {
997 write_ticks=((guint64)last_write->dwHighDateTime << 32) +
998 last_write->dwLowDateTime;
999 /* This is (time_t)0. We can actually go to INT_MIN,
1000 * but this will do for now.
1002 if (write_ticks < 116444736000000000ULL) {
1003 DEBUG ("%s: attempt to set write time too early",
1005 SetLastError (ERROR_INVALID_PARAMETER);
1009 utbuf.modtime=(write_ticks - 116444736000000000ULL) / 10000000;
1011 utbuf.modtime=statbuf.st_mtime;
1014 DEBUG ("%s: setting handle %p access %ld write %ld", __func__,
1015 handle, utbuf.actime, utbuf.modtime);
1017 ret = _wapi_utime (file_handle->filename, &utbuf);
1019 DEBUG ("%s: handle %p [%s] utime failed: %s", __func__,
1020 handle, file_handle->filename, strerror(errno));
1022 SetLastError (ERROR_INVALID_PARAMETER);
1029 static void console_close (gpointer handle, gpointer data)
1031 struct _WapiHandle_file *console_handle = (struct _WapiHandle_file *)data;
1032 int fd = console_handle->fd;
1034 DEBUG("%s: closing console handle %p", __func__, handle);
1036 g_free (console_handle->filename);
1042 static WapiFileType console_getfiletype(void)
1044 return(FILE_TYPE_CHAR);
1047 static gboolean console_read(gpointer handle, gpointer buffer,
1048 guint32 numbytes, guint32 *bytesread,
1049 WapiOverlapped *overlapped G_GNUC_UNUSED)
1051 struct _WapiHandle_file *console_handle;
1055 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_CONSOLE,
1056 (gpointer *)&console_handle);
1058 g_warning ("%s: error looking up console handle %p", __func__,
1060 SetLastError (ERROR_INVALID_HANDLE);
1063 fd = console_handle->fd;
1065 if(bytesread!=NULL) {
1069 if(!(console_handle->fileaccess & GENERIC_READ) &&
1070 !(console_handle->fileaccess & GENERIC_ALL)) {
1071 DEBUG ("%s: handle %p doesn't have GENERIC_READ access: %u",
1072 __func__, handle, console_handle->fileaccess);
1074 SetLastError (ERROR_ACCESS_DENIED);
1079 ret=read(fd, buffer, numbytes);
1080 } while (ret==-1 && errno==EINTR && !_wapi_thread_cur_apc_pending());
1083 DEBUG("%s: read of handle %p error: %s", __func__, handle,
1086 _wapi_set_last_error_from_errno ();
1090 if(bytesread!=NULL) {
1097 static gboolean console_write(gpointer handle, gconstpointer buffer,
1098 guint32 numbytes, guint32 *byteswritten,
1099 WapiOverlapped *overlapped G_GNUC_UNUSED)
1101 struct _WapiHandle_file *console_handle;
1105 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_CONSOLE,
1106 (gpointer *)&console_handle);
1108 g_warning ("%s: error looking up console handle %p", __func__,
1110 SetLastError (ERROR_INVALID_HANDLE);
1113 fd = console_handle->fd;
1115 if(byteswritten!=NULL) {
1119 if(!(console_handle->fileaccess & GENERIC_WRITE) &&
1120 !(console_handle->fileaccess & GENERIC_ALL)) {
1121 DEBUG("%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, console_handle->fileaccess);
1123 SetLastError (ERROR_ACCESS_DENIED);
1128 ret = write(fd, buffer, numbytes);
1129 } while (ret == -1 && errno == EINTR &&
1130 !_wapi_thread_cur_apc_pending());
1133 if (errno == EINTR) {
1136 _wapi_set_last_error_from_errno ();
1138 DEBUG ("%s: write of handle %p error: %s",
1139 __func__, handle, strerror(errno));
1144 if(byteswritten!=NULL) {
1151 static void pipe_close (gpointer handle, gpointer data)
1153 struct _WapiHandle_file *pipe_handle = (struct _WapiHandle_file*)data;
1154 int fd = pipe_handle->fd;
1156 DEBUG("%s: closing pipe handle %p", __func__, handle);
1158 /* No filename with pipe handles */
1163 static WapiFileType pipe_getfiletype(void)
1165 return(FILE_TYPE_PIPE);
1168 static gboolean pipe_read (gpointer handle, gpointer buffer,
1169 guint32 numbytes, guint32 *bytesread,
1170 WapiOverlapped *overlapped G_GNUC_UNUSED)
1172 struct _WapiHandle_file *pipe_handle;
1176 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_PIPE,
1177 (gpointer *)&pipe_handle);
1179 g_warning ("%s: error looking up pipe handle %p", __func__,
1181 SetLastError (ERROR_INVALID_HANDLE);
1184 fd = pipe_handle->fd;
1186 if(bytesread!=NULL) {
1190 if(!(pipe_handle->fileaccess & GENERIC_READ) &&
1191 !(pipe_handle->fileaccess & GENERIC_ALL)) {
1192 DEBUG("%s: handle %p doesn't have GENERIC_READ access: %u",
1193 __func__, handle, pipe_handle->fileaccess);
1195 SetLastError (ERROR_ACCESS_DENIED);
1199 DEBUG ("%s: reading up to %d bytes from pipe %p", __func__,
1203 ret=read(fd, buffer, numbytes);
1204 } while (ret==-1 && errno==EINTR && !_wapi_thread_cur_apc_pending());
1207 if (errno == EINTR) {
1210 _wapi_set_last_error_from_errno ();
1212 DEBUG("%s: read of handle %p error: %s", __func__,
1213 handle, strerror(errno));
1219 DEBUG ("%s: read %d bytes from pipe", __func__, ret);
1221 if(bytesread!=NULL) {
1228 static gboolean pipe_write(gpointer handle, gconstpointer buffer,
1229 guint32 numbytes, guint32 *byteswritten,
1230 WapiOverlapped *overlapped G_GNUC_UNUSED)
1232 struct _WapiHandle_file *pipe_handle;
1236 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_PIPE,
1237 (gpointer *)&pipe_handle);
1239 g_warning ("%s: error looking up pipe handle %p", __func__,
1241 SetLastError (ERROR_INVALID_HANDLE);
1244 fd = pipe_handle->fd;
1246 if(byteswritten!=NULL) {
1250 if(!(pipe_handle->fileaccess & GENERIC_WRITE) &&
1251 !(pipe_handle->fileaccess & GENERIC_ALL)) {
1252 DEBUG("%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, pipe_handle->fileaccess);
1254 SetLastError (ERROR_ACCESS_DENIED);
1258 DEBUG ("%s: writing up to %d bytes to pipe %p", __func__, numbytes,
1262 ret = write (fd, buffer, numbytes);
1263 } while (ret == -1 && errno == EINTR &&
1264 !_wapi_thread_cur_apc_pending());
1267 if (errno == EINTR) {
1270 _wapi_set_last_error_from_errno ();
1272 DEBUG("%s: write of handle %p error: %s", __func__,
1273 handle, strerror(errno));
1278 if(byteswritten!=NULL) {
1285 static int convert_flags(guint32 fileaccess, guint32 createmode)
1289 switch(fileaccess) {
1296 case GENERIC_READ|GENERIC_WRITE:
1300 DEBUG("%s: Unknown access type 0x%x", __func__,
1305 switch(createmode) {
1307 flags|=O_CREAT|O_EXCL;
1310 flags|=O_CREAT|O_TRUNC;
1317 case TRUNCATE_EXISTING:
1321 DEBUG("%s: Unknown create mode 0x%x", __func__,
1330 static mode_t convert_perms(guint32 sharemode)
1334 if(sharemode&FILE_SHARE_READ) {
1337 if(sharemode&FILE_SHARE_WRITE) {
1345 static gboolean share_allows_open (struct stat *statbuf, guint32 sharemode,
1347 struct _WapiFileShare **share_info)
1349 gboolean file_already_shared;
1350 guint32 file_existing_share, file_existing_access;
1352 file_already_shared = _wapi_handle_get_or_set_share (statbuf->st_dev, statbuf->st_ino, sharemode, fileaccess, &file_existing_share, &file_existing_access, share_info);
1354 if (file_already_shared) {
1355 /* The reference to this share info was incremented
1356 * when we looked it up, so be careful to put it back
1357 * if we conclude we can't use this file.
1359 if (file_existing_share == 0) {
1360 /* Quick and easy, no possibility to share */
1361 DEBUG ("%s: Share mode prevents open: requested access: 0x%x, file has sharing = NONE", __func__, fileaccess);
1363 _wapi_handle_share_release (*share_info);
1368 if (((file_existing_share == FILE_SHARE_READ) &&
1369 (fileaccess != GENERIC_READ)) ||
1370 ((file_existing_share == FILE_SHARE_WRITE) &&
1371 (fileaccess != GENERIC_WRITE))) {
1372 /* New access mode doesn't match up */
1373 DEBUG ("%s: Share mode prevents open: requested access: 0x%x, file has sharing: 0x%x", __func__, fileaccess, file_existing_share);
1375 _wapi_handle_share_release (*share_info);
1380 if (((file_existing_access & GENERIC_READ) &&
1381 !(sharemode & FILE_SHARE_READ)) ||
1382 ((file_existing_access & GENERIC_WRITE) &&
1383 !(sharemode & FILE_SHARE_WRITE))) {
1384 /* New share mode doesn't match up */
1385 DEBUG ("%s: Access mode prevents open: requested share: 0x%x, file has access: 0x%x", __func__, sharemode, file_existing_access);
1387 _wapi_handle_share_release (*share_info);
1392 DEBUG ("%s: New file!", __func__);
1400 share_allows_delete (struct stat *statbuf, struct _WapiFileShare **share_info)
1402 gboolean file_already_shared;
1403 guint32 file_existing_share, file_existing_access;
1405 file_already_shared = _wapi_handle_get_or_set_share (statbuf->st_dev, statbuf->st_ino, FILE_SHARE_DELETE, GENERIC_READ, &file_existing_share, &file_existing_access, share_info);
1407 if (file_already_shared) {
1408 /* The reference to this share info was incremented
1409 * when we looked it up, so be careful to put it back
1410 * if we conclude we can't use this file.
1412 if (file_existing_share == 0) {
1413 /* Quick and easy, no possibility to share */
1414 DEBUG ("%s: Share mode prevents open: requested access: 0x%x, file has sharing = NONE", __func__, fileaccess);
1416 _wapi_handle_share_release (*share_info);
1421 if (!(file_existing_share & FILE_SHARE_DELETE)) {
1422 /* New access mode doesn't match up */
1423 DEBUG ("%s: Share mode prevents open: requested access: 0x%x, file has sharing: 0x%x", __func__, fileaccess, file_existing_share);
1425 _wapi_handle_share_release (*share_info);
1430 DEBUG ("%s: New file!", __func__);
1435 static gboolean share_check (struct stat *statbuf, guint32 sharemode,
1437 struct _WapiFileShare **share_info, int fd)
1439 if (share_allows_open (statbuf, sharemode, fileaccess,
1440 share_info) == TRUE) {
1444 /* Got a share violation. Double check that the file is still
1445 * open by someone, in case a process crashed while still
1446 * holding a file handle. This will also cope with someone
1447 * using Mono.Posix to close the file. This is cheaper and
1448 * less intrusive to other processes than initiating a handle
1452 _wapi_handle_check_share (*share_info, fd);
1453 if (share_allows_open (statbuf, sharemode, fileaccess,
1454 share_info) == TRUE) {
1458 return(share_allows_open (statbuf, sharemode, fileaccess, share_info));
1463 * @name: a pointer to a NULL-terminated unicode string, that names
1464 * the file or other object to create.
1465 * @fileaccess: specifies the file access mode
1466 * @sharemode: whether the file should be shared. This parameter is
1467 * currently ignored.
1468 * @security: Ignored for now.
1469 * @createmode: specifies whether to create a new file, whether to
1470 * overwrite an existing file, whether to truncate the file, etc.
1471 * @attrs: specifies file attributes and flags. On win32 attributes
1472 * are characteristics of the file, not the handle, and are ignored
1473 * when an existing file is opened. Flags give the library hints on
1474 * how to process a file to optimise performance.
1475 * @template: the handle of an open %GENERIC_READ file that specifies
1476 * attributes to apply to a newly created file, ignoring @attrs.
1477 * Normally this parameter is NULL. This parameter is ignored when an
1478 * existing file is opened.
1480 * Creates a new file handle. This only applies to normal files:
1481 * pipes are handled by CreatePipe(), and console handles are created
1482 * with GetStdHandle().
1484 * Return value: the new handle, or %INVALID_HANDLE_VALUE on error.
1486 gpointer CreateFile(const gunichar2 *name, guint32 fileaccess,
1487 guint32 sharemode, WapiSecurityAttributes *security,
1488 guint32 createmode, guint32 attrs,
1489 gpointer template_ G_GNUC_UNUSED)
1491 struct _WapiHandle_file file_handle = {0};
1493 int flags=convert_flags(fileaccess, createmode);
1494 /*mode_t perms=convert_perms(sharemode);*/
1495 /* we don't use sharemode, because that relates to sharing of
1496 * the file when the file is open and is already handled by
1497 * other code, perms instead are the on-disk permissions and
1498 * this is a sane default.
1503 WapiHandleType handle_type;
1504 struct stat statbuf;
1506 mono_once (&io_ops_once, io_ops_init);
1508 if (attrs & FILE_ATTRIBUTE_TEMPORARY)
1511 if (attrs & FILE_ATTRIBUTE_ENCRYPTED){
1512 SetLastError (ERROR_ENCRYPTION_FAILED);
1513 return INVALID_HANDLE_VALUE;
1517 DEBUG ("%s: name is NULL", __func__);
1519 SetLastError (ERROR_INVALID_NAME);
1520 return(INVALID_HANDLE_VALUE);
1523 filename = mono_unicode_to_external (name);
1524 if (filename == NULL) {
1525 DEBUG("%s: unicode conversion returned NULL", __func__);
1527 SetLastError (ERROR_INVALID_NAME);
1528 return(INVALID_HANDLE_VALUE);
1531 DEBUG ("%s: Opening %s with share 0x%x and access 0x%x", __func__,
1532 filename, sharemode, fileaccess);
1534 fd = _wapi_open (filename, flags, perms);
1536 /* If we were trying to open a directory with write permissions
1537 * (e.g. O_WRONLY or O_RDWR), this call will fail with
1538 * EISDIR. However, this is a bit bogus because calls to
1539 * manipulate the directory (e.g. SetFileTime) will still work on
1540 * the directory because they use other API calls
1541 * (e.g. utime()). Hence, if we failed with the EISDIR error, try
1542 * to open the directory again without write permission.
1544 if (fd == -1 && errno == EISDIR)
1546 /* Try again but don't try to make it writable */
1547 fd = _wapi_open (filename, flags & ~(O_RDWR|O_WRONLY), perms);
1551 DEBUG("%s: Error opening file %s: %s", __func__, filename,
1553 _wapi_set_last_path_error_from_errno (NULL, filename);
1556 return(INVALID_HANDLE_VALUE);
1559 if (fd >= _wapi_fd_reserve) {
1560 DEBUG ("%s: File descriptor is too big", __func__);
1562 SetLastError (ERROR_TOO_MANY_OPEN_FILES);
1567 return(INVALID_HANDLE_VALUE);
1570 ret = fstat (fd, &statbuf);
1572 DEBUG ("%s: fstat error of file %s: %s", __func__,
1573 filename, strerror (errno));
1574 _wapi_set_last_error_from_errno ();
1578 return(INVALID_HANDLE_VALUE);
1580 #ifdef __native_client__
1581 /* Workaround: Native Client currently returns the same fake inode
1582 * for all files, so do a simple hash on the filename so we don't
1583 * use the same share info for each file.
1585 statbuf.st_ino = g_str_hash(filename);
1588 if (share_check (&statbuf, sharemode, fileaccess,
1589 &file_handle.share_info, fd) == FALSE) {
1590 SetLastError (ERROR_SHARING_VIOLATION);
1594 return (INVALID_HANDLE_VALUE);
1596 if (file_handle.share_info == NULL) {
1597 /* No space, so no more files can be opened */
1598 DEBUG ("%s: No space in the share table", __func__);
1600 SetLastError (ERROR_TOO_MANY_OPEN_FILES);
1604 return(INVALID_HANDLE_VALUE);
1607 file_handle.filename = filename;
1609 if(security!=NULL) {
1610 //file_handle->security_attributes=_wapi_handle_scratch_store (
1611 //security, sizeof(WapiSecurityAttributes));
1614 file_handle.fd = fd;
1615 file_handle.fileaccess=fileaccess;
1616 file_handle.sharemode=sharemode;
1617 file_handle.attrs=attrs;
1619 #ifdef HAVE_POSIX_FADVISE
1620 if (attrs & FILE_FLAG_SEQUENTIAL_SCAN)
1621 posix_fadvise (fd, 0, 0, POSIX_FADV_SEQUENTIAL);
1622 if (attrs & FILE_FLAG_RANDOM_ACCESS)
1623 posix_fadvise (fd, 0, 0, POSIX_FADV_RANDOM);
1627 #define S_ISFIFO(m) ((m & S_IFIFO) != 0)
1629 if (S_ISFIFO (statbuf.st_mode)) {
1630 handle_type = WAPI_HANDLE_PIPE;
1631 } else if (S_ISCHR (statbuf.st_mode)) {
1632 handle_type = WAPI_HANDLE_CONSOLE;
1634 handle_type = WAPI_HANDLE_FILE;
1637 handle = _wapi_handle_new_fd (handle_type, fd, &file_handle);
1638 if (handle == _WAPI_HANDLE_INVALID) {
1639 g_warning ("%s: error creating file handle", __func__);
1643 SetLastError (ERROR_GEN_FAILURE);
1644 return(INVALID_HANDLE_VALUE);
1647 DEBUG("%s: returning handle %p", __func__, handle);
1654 * @name: a pointer to a NULL-terminated unicode string, that names
1655 * the file to be deleted.
1657 * Deletes file @name.
1659 * Return value: %TRUE on success, %FALSE otherwise.
1661 gboolean DeleteFile(const gunichar2 *name)
1665 gboolean ret = FALSE;
1668 struct stat statbuf;
1669 struct _WapiFileShare *shareinfo;
1673 DEBUG("%s: name is NULL", __func__);
1675 SetLastError (ERROR_INVALID_NAME);
1679 filename=mono_unicode_to_external(name);
1680 if(filename==NULL) {
1681 DEBUG("%s: unicode conversion returned NULL", __func__);
1683 SetLastError (ERROR_INVALID_NAME);
1687 attrs = GetFileAttributes (name);
1688 if (attrs == INVALID_FILE_ATTRIBUTES) {
1689 DEBUG ("%s: file attributes error", __func__);
1690 /* Error set by GetFileAttributes() */
1696 /* Check to make sure sharing allows us to open the file for
1697 * writing. See bug 323389.
1699 * Do the checks that don't need an open file descriptor, for
1700 * simplicity's sake. If we really have to do the full checks
1701 * then we can implement that later.
1703 if (_wapi_stat (filename, &statbuf) < 0) {
1704 _wapi_set_last_path_error_from_errno (NULL, filename);
1709 if (share_allows_open (&statbuf, 0, GENERIC_WRITE,
1710 &shareinfo) == FALSE) {
1711 SetLastError (ERROR_SHARING_VIOLATION);
1716 _wapi_handle_share_release (shareinfo);
1719 retval = _wapi_unlink (filename);
1722 _wapi_set_last_path_error_from_errno (NULL, filename);
1734 * @name: a pointer to a NULL-terminated unicode string, that names
1735 * the file to be moved.
1736 * @dest_name: a pointer to a NULL-terminated unicode string, that is the
1737 * new name for the file.
1739 * Renames file @name to @dest_name.
1740 * MoveFile sets ERROR_ALREADY_EXISTS if the destination exists, except
1741 * when it is the same file as the source. In that case it silently succeeds.
1743 * Return value: %TRUE on success, %FALSE otherwise.
1745 gboolean MoveFile (const gunichar2 *name, const gunichar2 *dest_name)
1747 gchar *utf8_name, *utf8_dest_name;
1748 int result, errno_copy;
1749 struct stat stat_src, stat_dest;
1750 gboolean ret = FALSE;
1751 struct _WapiFileShare *shareinfo;
1754 DEBUG("%s: name is NULL", __func__);
1756 SetLastError (ERROR_INVALID_NAME);
1760 utf8_name = mono_unicode_to_external (name);
1761 if (utf8_name == NULL) {
1762 DEBUG ("%s: unicode conversion returned NULL", __func__);
1764 SetLastError (ERROR_INVALID_NAME);
1768 if(dest_name==NULL) {
1769 DEBUG("%s: name is NULL", __func__);
1772 SetLastError (ERROR_INVALID_NAME);
1776 utf8_dest_name = mono_unicode_to_external (dest_name);
1777 if (utf8_dest_name == NULL) {
1778 DEBUG ("%s: unicode conversion returned NULL", __func__);
1781 SetLastError (ERROR_INVALID_NAME);
1786 * In C# land we check for the existence of src, but not for dest.
1787 * We check it here and return the failure if dest exists and is not
1788 * the same file as src.
1790 if (_wapi_stat (utf8_name, &stat_src) < 0) {
1791 if (errno != ENOENT || _wapi_lstat (utf8_name, &stat_src) < 0) {
1792 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
1794 g_free (utf8_dest_name);
1799 if (!_wapi_stat (utf8_dest_name, &stat_dest)) {
1800 if (stat_dest.st_dev != stat_src.st_dev ||
1801 stat_dest.st_ino != stat_src.st_ino) {
1803 g_free (utf8_dest_name);
1804 SetLastError (ERROR_ALREADY_EXISTS);
1809 /* Check to make that we have delete sharing permission.
1810 * See https://bugzilla.xamarin.com/show_bug.cgi?id=17009
1812 * Do the checks that don't need an open file descriptor, for
1813 * simplicity's sake. If we really have to do the full checks
1814 * then we can implement that later.
1816 if (share_allows_delete (&stat_src, &shareinfo) == FALSE) {
1817 SetLastError (ERROR_SHARING_VIOLATION);
1821 _wapi_handle_share_release (shareinfo);
1823 result = _wapi_rename (utf8_name, utf8_dest_name);
1827 switch(errno_copy) {
1829 SetLastError (ERROR_ALREADY_EXISTS);
1833 /* Ignore here, it is dealt with below */
1837 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
1842 g_free (utf8_dest_name);
1844 if (result != 0 && errno_copy == EXDEV) {
1845 if (S_ISDIR (stat_src.st_mode)) {
1846 SetLastError (ERROR_NOT_SAME_DEVICE);
1849 /* Try a copy to the new location, and delete the source */
1850 if (CopyFile (name, dest_name, TRUE)==FALSE) {
1851 /* CopyFile will set the error */
1855 return(DeleteFile (name));
1866 write_file (int src_fd, int dest_fd, struct stat *st_src, gboolean report_errors)
1870 int buf_size = st_src->st_blksize;
1872 buf_size = buf_size < 8192 ? 8192 : (buf_size > 65536 ? 65536 : buf_size);
1873 buf = (char *) malloc (buf_size);
1876 remain = read (src_fd, buf, buf_size);
1878 if (errno == EINTR && !_wapi_thread_cur_apc_pending ())
1882 _wapi_set_last_error_from_errno ();
1892 while (remain > 0) {
1893 if ((n = write (dest_fd, wbuf, remain)) < 0) {
1894 if (errno == EINTR && !_wapi_thread_cur_apc_pending ())
1898 _wapi_set_last_error_from_errno ();
1899 DEBUG ("%s: write failed.", __func__);
1915 * @name: a pointer to a NULL-terminated unicode string, that names
1916 * the file to be copied.
1917 * @dest_name: a pointer to a NULL-terminated unicode string, that is the
1918 * new name for the file.
1919 * @fail_if_exists: if TRUE and dest_name exists, the copy will fail.
1921 * Copies file @name to @dest_name
1923 * Return value: %TRUE on success, %FALSE otherwise.
1925 gboolean CopyFile (const gunichar2 *name, const gunichar2 *dest_name,
1926 gboolean fail_if_exists)
1928 gchar *utf8_src, *utf8_dest;
1929 int src_fd, dest_fd;
1930 struct stat st, dest_st;
1931 struct utimbuf dest_time;
1932 gboolean ret = TRUE;
1936 DEBUG("%s: name is NULL", __func__);
1938 SetLastError (ERROR_INVALID_NAME);
1942 utf8_src = mono_unicode_to_external (name);
1943 if (utf8_src == NULL) {
1944 DEBUG ("%s: unicode conversion of source returned NULL",
1947 SetLastError (ERROR_INVALID_PARAMETER);
1951 if(dest_name==NULL) {
1952 DEBUG("%s: dest is NULL", __func__);
1955 SetLastError (ERROR_INVALID_NAME);
1959 utf8_dest = mono_unicode_to_external (dest_name);
1960 if (utf8_dest == NULL) {
1961 DEBUG ("%s: unicode conversion of dest returned NULL",
1964 SetLastError (ERROR_INVALID_PARAMETER);
1971 src_fd = _wapi_open (utf8_src, O_RDONLY, 0);
1973 _wapi_set_last_path_error_from_errno (NULL, utf8_src);
1981 if (fstat (src_fd, &st) < 0) {
1982 _wapi_set_last_error_from_errno ();
1991 /* Before trying to open/create the dest, we need to report a 'file busy'
1992 * error if src and dest are actually the same file. We do the check here to take
1993 * advantage of the IOMAP capability */
1994 if (!_wapi_stat (utf8_dest, &dest_st) && st.st_dev == dest_st.st_dev &&
1995 st.st_ino == dest_st.st_ino) {
2001 SetLastError (ERROR_SHARING_VIOLATION);
2005 if (fail_if_exists) {
2006 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_EXCL, st.st_mode);
2008 /* FIXME: it kinda sucks that this code path potentially scans
2009 * the directory twice due to the weird SetLastError()
2011 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_TRUNC, st.st_mode);
2013 /* The file does not exist, try creating it */
2014 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_TRUNC, st.st_mode);
2016 /* Apparently this error is set if we
2017 * overwrite the dest file
2019 SetLastError (ERROR_ALREADY_EXISTS);
2023 _wapi_set_last_error_from_errno ();
2032 if (!write_file (src_fd, dest_fd, &st, TRUE))
2038 dest_time.modtime = st.st_mtime;
2039 dest_time.actime = st.st_atime;
2040 ret_utime = utime (utf8_dest, &dest_time);
2041 if (ret_utime == -1)
2042 DEBUG ("%s: file [%s] utime failed: %s", __func__, utf8_dest, strerror(errno));
2051 convert_arg_to_utf8 (const gunichar2 *arg, const gchar *arg_name)
2056 DEBUG ("%s: %s is NULL", __func__, arg_name);
2057 SetLastError (ERROR_INVALID_NAME);
2061 utf8_ret = mono_unicode_to_external (arg);
2062 if (utf8_ret == NULL) {
2063 DEBUG ("%s: unicode conversion of %s returned NULL",
2064 __func__, arg_name);
2065 SetLastError (ERROR_INVALID_PARAMETER);
2073 ReplaceFile (const gunichar2 *replacedFileName, const gunichar2 *replacementFileName,
2074 const gunichar2 *backupFileName, guint32 replaceFlags,
2075 gpointer exclude, gpointer reserved)
2077 int result, backup_fd = -1,replaced_fd = -1;
2078 gchar *utf8_replacedFileName, *utf8_replacementFileName = NULL, *utf8_backupFileName = NULL;
2079 struct stat stBackup;
2080 gboolean ret = FALSE;
2082 if (!(utf8_replacedFileName = convert_arg_to_utf8 (replacedFileName, "replacedFileName")))
2084 if (!(utf8_replacementFileName = convert_arg_to_utf8 (replacementFileName, "replacementFileName")))
2085 goto replace_cleanup;
2086 if (backupFileName != NULL) {
2087 if (!(utf8_backupFileName = convert_arg_to_utf8 (backupFileName, "backupFileName")))
2088 goto replace_cleanup;
2091 if (utf8_backupFileName) {
2092 // Open the backup file for read so we can restore the file if an error occurs.
2093 backup_fd = _wapi_open (utf8_backupFileName, O_RDONLY, 0);
2094 result = _wapi_rename (utf8_replacedFileName, utf8_backupFileName);
2096 goto replace_cleanup;
2099 result = _wapi_rename (utf8_replacementFileName, utf8_replacedFileName);
2101 _wapi_set_last_path_error_from_errno (NULL, utf8_replacementFileName);
2102 _wapi_rename (utf8_backupFileName, utf8_replacedFileName);
2103 if (backup_fd != -1 && !fstat (backup_fd, &stBackup)) {
2104 replaced_fd = _wapi_open (utf8_backupFileName, O_WRONLY | O_CREAT | O_TRUNC,
2107 if (replaced_fd == -1)
2108 goto replace_cleanup;
2110 write_file (backup_fd, replaced_fd, &stBackup, FALSE);
2113 goto replace_cleanup;
2119 g_free (utf8_replacedFileName);
2120 g_free (utf8_replacementFileName);
2121 g_free (utf8_backupFileName);
2122 if (backup_fd != -1)
2124 if (replaced_fd != -1)
2125 close (replaced_fd);
2131 * @stdhandle: specifies the file descriptor
2133 * Returns a handle for stdin, stdout, or stderr. Always returns the
2134 * same handle for the same @stdhandle.
2136 * Return value: the handle, or %INVALID_HANDLE_VALUE on error
2139 static mono_mutex_t stdhandle_mutex;
2141 gpointer GetStdHandle(WapiStdHandle stdhandle)
2143 struct _WapiHandle_file *file_handle;
2150 case STD_INPUT_HANDLE:
2155 case STD_OUTPUT_HANDLE:
2160 case STD_ERROR_HANDLE:
2166 DEBUG("%s: unknown standard handle type", __func__);
2168 SetLastError (ERROR_INVALID_PARAMETER);
2169 return(INVALID_HANDLE_VALUE);
2172 handle = GINT_TO_POINTER (fd);
2174 thr_ret = mono_os_mutex_lock (&stdhandle_mutex);
2175 g_assert (thr_ret == 0);
2177 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_CONSOLE,
2178 (gpointer *)&file_handle);
2180 /* Need to create this console handle */
2181 handle = _wapi_stdhandle_create (fd, name);
2183 if (handle == INVALID_HANDLE_VALUE) {
2184 SetLastError (ERROR_NO_MORE_FILES);
2188 /* Add a reference to this handle */
2189 _wapi_handle_ref (handle);
2193 thr_ret = mono_os_mutex_unlock (&stdhandle_mutex);
2194 g_assert (thr_ret == 0);
2201 * @handle: The file handle to read from. The handle must have
2202 * %GENERIC_READ access.
2203 * @buffer: The buffer to store read data in
2204 * @numbytes: The maximum number of bytes to read
2205 * @bytesread: The actual number of bytes read is stored here. This
2206 * value can be zero if the handle is positioned at the end of the
2208 * @overlapped: points to a required %WapiOverlapped structure if
2209 * @handle has the %FILE_FLAG_OVERLAPPED option set, should be NULL
2212 * If @handle does not have the %FILE_FLAG_OVERLAPPED option set, this
2213 * function reads up to @numbytes bytes from the file from the current
2214 * file position, and stores them in @buffer. If there are not enough
2215 * bytes left in the file, just the amount available will be read.
2216 * The actual number of bytes read is stored in @bytesread.
2218 * If @handle has the %FILE_FLAG_OVERLAPPED option set, the current
2219 * file position is ignored and the read position is taken from data
2220 * in the @overlapped structure.
2222 * Return value: %TRUE if the read succeeds (even if no bytes were
2223 * read due to an attempt to read past the end of the file), %FALSE on
2226 gboolean ReadFile(gpointer handle, gpointer buffer, guint32 numbytes,
2227 guint32 *bytesread, WapiOverlapped *overlapped)
2229 WapiHandleType type;
2231 type = _wapi_handle_type (handle);
2233 if(io_ops[type].readfile==NULL) {
2234 SetLastError (ERROR_INVALID_HANDLE);
2238 return(io_ops[type].readfile (handle, buffer, numbytes, bytesread,
2244 * @handle: The file handle to write to. The handle must have
2245 * %GENERIC_WRITE access.
2246 * @buffer: The buffer to read data from.
2247 * @numbytes: The maximum number of bytes to write.
2248 * @byteswritten: The actual number of bytes written is stored here.
2249 * If the handle is positioned at the file end, the length of the file
2250 * is extended. This parameter may be %NULL.
2251 * @overlapped: points to a required %WapiOverlapped structure if
2252 * @handle has the %FILE_FLAG_OVERLAPPED option set, should be NULL
2255 * If @handle does not have the %FILE_FLAG_OVERLAPPED option set, this
2256 * function writes up to @numbytes bytes from @buffer to the file at
2257 * the current file position. If @handle is positioned at the end of
2258 * the file, the file is extended. The actual number of bytes written
2259 * is stored in @byteswritten.
2261 * If @handle has the %FILE_FLAG_OVERLAPPED option set, the current
2262 * file position is ignored and the write position is taken from data
2263 * in the @overlapped structure.
2265 * Return value: %TRUE if the write succeeds, %FALSE on error.
2267 gboolean WriteFile(gpointer handle, gconstpointer buffer, guint32 numbytes,
2268 guint32 *byteswritten, WapiOverlapped *overlapped)
2270 WapiHandleType type;
2272 type = _wapi_handle_type (handle);
2274 if(io_ops[type].writefile==NULL) {
2275 SetLastError (ERROR_INVALID_HANDLE);
2279 return(io_ops[type].writefile (handle, buffer, numbytes, byteswritten,
2285 * @handle: Handle to open file. The handle must have
2286 * %GENERIC_WRITE access.
2288 * Flushes buffers of the file and causes all unwritten data to
2291 * Return value: %TRUE on success, %FALSE otherwise.
2293 gboolean FlushFileBuffers(gpointer handle)
2295 WapiHandleType type;
2297 type = _wapi_handle_type (handle);
2299 if(io_ops[type].flushfile==NULL) {
2300 SetLastError (ERROR_INVALID_HANDLE);
2304 return(io_ops[type].flushfile (handle));
2309 * @handle: The file handle to set. The handle must have
2310 * %GENERIC_WRITE access.
2312 * Moves the end-of-file position to the current position of the file
2313 * pointer. This function is used to truncate or extend a file.
2315 * Return value: %TRUE on success, %FALSE otherwise.
2317 gboolean SetEndOfFile(gpointer handle)
2319 WapiHandleType type;
2321 type = _wapi_handle_type (handle);
2323 if (io_ops[type].setendoffile == NULL) {
2324 SetLastError (ERROR_INVALID_HANDLE);
2328 return(io_ops[type].setendoffile (handle));
2333 * @handle: The file handle to set. The handle must have
2334 * %GENERIC_READ or %GENERIC_WRITE access.
2335 * @movedistance: Low 32 bits of a signed value that specifies the
2336 * number of bytes to move the file pointer.
2337 * @highmovedistance: Pointer to the high 32 bits of a signed value
2338 * that specifies the number of bytes to move the file pointer, or
2340 * @method: The starting point for the file pointer move.
2342 * Sets the file pointer of an open file.
2344 * The distance to move the file pointer is calculated from
2345 * @movedistance and @highmovedistance: If @highmovedistance is %NULL,
2346 * @movedistance is the 32-bit signed value; otherwise, @movedistance
2347 * is the low 32 bits and @highmovedistance a pointer to the high 32
2348 * bits of a 64 bit signed value. A positive distance moves the file
2349 * pointer forward from the position specified by @method; a negative
2350 * distance moves the file pointer backward.
2352 * If the library is compiled without large file support,
2353 * @highmovedistance is ignored and its value is set to zero on a
2354 * successful return.
2356 * Return value: On success, the low 32 bits of the new file pointer.
2357 * If @highmovedistance is not %NULL, the high 32 bits of the new file
2358 * pointer are stored there. On failure, %INVALID_SET_FILE_POINTER.
2360 guint32 SetFilePointer(gpointer handle, gint32 movedistance,
2361 gint32 *highmovedistance, WapiSeekMethod method)
2363 WapiHandleType type;
2365 type = _wapi_handle_type (handle);
2367 if (io_ops[type].seek == NULL) {
2368 SetLastError (ERROR_INVALID_HANDLE);
2369 return(INVALID_SET_FILE_POINTER);
2372 return(io_ops[type].seek (handle, movedistance, highmovedistance,
2378 * @handle: The file handle to test.
2380 * Finds the type of file @handle.
2382 * Return value: %FILE_TYPE_UNKNOWN - the type of the file @handle is
2383 * unknown. %FILE_TYPE_DISK - @handle is a disk file.
2384 * %FILE_TYPE_CHAR - @handle is a character device, such as a console.
2385 * %FILE_TYPE_PIPE - @handle is a named or anonymous pipe.
2387 WapiFileType GetFileType(gpointer handle)
2389 WapiHandleType type;
2391 if (!_WAPI_PRIVATE_HAVE_SLOT (handle)) {
2392 SetLastError (ERROR_INVALID_HANDLE);
2393 return(FILE_TYPE_UNKNOWN);
2396 type = _wapi_handle_type (handle);
2398 if (io_ops[type].getfiletype == NULL) {
2399 SetLastError (ERROR_INVALID_HANDLE);
2400 return(FILE_TYPE_UNKNOWN);
2403 return(io_ops[type].getfiletype ());
2408 * @handle: The file handle to query. The handle must have
2409 * %GENERIC_READ or %GENERIC_WRITE access.
2410 * @highsize: If non-%NULL, the high 32 bits of the file size are
2413 * Retrieves the size of the file @handle.
2415 * If the library is compiled without large file support, @highsize
2416 * has its value set to zero on a successful return.
2418 * Return value: On success, the low 32 bits of the file size. If
2419 * @highsize is non-%NULL then the high 32 bits of the file size are
2420 * stored here. On failure %INVALID_FILE_SIZE is returned.
2422 guint32 GetFileSize(gpointer handle, guint32 *highsize)
2424 WapiHandleType type;
2426 type = _wapi_handle_type (handle);
2428 if (io_ops[type].getfilesize == NULL) {
2429 SetLastError (ERROR_INVALID_HANDLE);
2430 return(INVALID_FILE_SIZE);
2433 return(io_ops[type].getfilesize (handle, highsize));
2438 * @handle: The file handle to query. The handle must have
2439 * %GENERIC_READ access.
2440 * @create_time: Points to a %WapiFileTime structure to receive the
2441 * number of ticks since the epoch that file was created. May be
2443 * @last_access: Points to a %WapiFileTime structure to receive the
2444 * number of ticks since the epoch when file was last accessed. May be
2446 * @last_write: Points to a %WapiFileTime structure to receive the
2447 * number of ticks since the epoch when file was last written to. May
2450 * Finds the number of ticks since the epoch that the file referenced
2451 * by @handle was created, last accessed and last modified. A tick is
2452 * a 100 nanosecond interval. The epoch is Midnight, January 1 1601
2455 * Create time isn't recorded on POSIX file systems or reported by
2456 * stat(2), so that time is guessed by returning the oldest of the
2459 * Return value: %TRUE on success, %FALSE otherwise.
2461 gboolean GetFileTime(gpointer handle, WapiFileTime *create_time,
2462 WapiFileTime *last_access, WapiFileTime *last_write)
2464 WapiHandleType type;
2466 type = _wapi_handle_type (handle);
2468 if (io_ops[type].getfiletime == NULL) {
2469 SetLastError (ERROR_INVALID_HANDLE);
2473 return(io_ops[type].getfiletime (handle, create_time, last_access,
2479 * @handle: The file handle to set. The handle must have
2480 * %GENERIC_WRITE access.
2481 * @create_time: Points to a %WapiFileTime structure that contains the
2482 * number of ticks since the epoch that the file was created. May be
2484 * @last_access: Points to a %WapiFileTime structure that contains the
2485 * number of ticks since the epoch when the file was last accessed.
2487 * @last_write: Points to a %WapiFileTime structure that contains the
2488 * number of ticks since the epoch when the file was last written to.
2491 * Sets the number of ticks since the epoch that the file referenced
2492 * by @handle was created, last accessed or last modified. A tick is
2493 * a 100 nanosecond interval. The epoch is Midnight, January 1 1601
2496 * Create time isn't recorded on POSIX file systems, and is ignored.
2498 * Return value: %TRUE on success, %FALSE otherwise.
2500 gboolean SetFileTime(gpointer handle, const WapiFileTime *create_time,
2501 const WapiFileTime *last_access,
2502 const WapiFileTime *last_write)
2504 WapiHandleType type;
2506 type = _wapi_handle_type (handle);
2508 if (io_ops[type].setfiletime == NULL) {
2509 SetLastError (ERROR_INVALID_HANDLE);
2513 return(io_ops[type].setfiletime (handle, create_time, last_access,
2517 /* A tick is a 100-nanosecond interval. File time epoch is Midnight,
2518 * January 1 1601 GMT
2521 #define TICKS_PER_MILLISECOND 10000L
2522 #define TICKS_PER_SECOND 10000000L
2523 #define TICKS_PER_MINUTE 600000000L
2524 #define TICKS_PER_HOUR 36000000000LL
2525 #define TICKS_PER_DAY 864000000000LL
2527 #define isleap(y) ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0))
2529 static const guint16 mon_yday[2][13]={
2530 {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
2531 {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366},
2535 * FileTimeToSystemTime:
2536 * @file_time: Points to a %WapiFileTime structure that contains the
2537 * number of ticks to convert.
2538 * @system_time: Points to a %WapiSystemTime structure to receive the
2541 * Converts a tick count into broken-out time values.
2543 * Return value: %TRUE on success, %FALSE otherwise.
2545 gboolean FileTimeToSystemTime(const WapiFileTime *file_time,
2546 WapiSystemTime *system_time)
2548 gint64 file_ticks, totaldays, rem, y;
2551 if(system_time==NULL) {
2552 DEBUG("%s: system_time NULL", __func__);
2554 SetLastError (ERROR_INVALID_PARAMETER);
2558 file_ticks=((gint64)file_time->dwHighDateTime << 32) +
2559 file_time->dwLowDateTime;
2561 /* Really compares if file_ticks>=0x8000000000000000
2562 * (LLONG_MAX+1) but we're working with a signed value for the
2563 * year and day calculation to work later
2566 DEBUG("%s: file_time too big", __func__);
2568 SetLastError (ERROR_INVALID_PARAMETER);
2572 totaldays=(file_ticks / TICKS_PER_DAY);
2573 rem = file_ticks % TICKS_PER_DAY;
2574 DEBUG("%s: totaldays: %lld rem: %lld", __func__, totaldays, rem);
2576 system_time->wHour=rem/TICKS_PER_HOUR;
2577 rem %= TICKS_PER_HOUR;
2578 DEBUG("%s: Hour: %d rem: %lld", __func__, system_time->wHour, rem);
2580 system_time->wMinute = rem / TICKS_PER_MINUTE;
2581 rem %= TICKS_PER_MINUTE;
2582 DEBUG("%s: Minute: %d rem: %lld", __func__, system_time->wMinute,
2585 system_time->wSecond = rem / TICKS_PER_SECOND;
2586 rem %= TICKS_PER_SECOND;
2587 DEBUG("%s: Second: %d rem: %lld", __func__, system_time->wSecond,
2590 system_time->wMilliseconds = rem / TICKS_PER_MILLISECOND;
2591 DEBUG("%s: Milliseconds: %d", __func__,
2592 system_time->wMilliseconds);
2594 /* January 1, 1601 was a Monday, according to Emacs calendar */
2595 system_time->wDayOfWeek = ((1 + totaldays) % 7) + 1;
2596 DEBUG("%s: Day of week: %d", __func__, system_time->wDayOfWeek);
2598 /* This algorithm to find year and month given days from epoch
2603 #define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
2604 #define LEAPS_THRU_END_OF(y) (DIV(y, 4) - DIV (y, 100) + DIV (y, 400))
2606 while(totaldays < 0 || totaldays >= (isleap(y)?366:365)) {
2607 /* Guess a corrected year, assuming 365 days per year */
2608 gint64 yg = y + totaldays / 365 - (totaldays % 365 < 0);
2609 DEBUG("%s: totaldays: %lld yg: %lld y: %lld", __func__,
2612 g_message("%s: LEAPS(yg): %lld LEAPS(y): %lld", __func__,
2613 LEAPS_THRU_END_OF(yg-1), LEAPS_THRU_END_OF(y-1));
2615 /* Adjust days and y to match the guessed year. */
2616 totaldays -= ((yg - y) * 365
2617 + LEAPS_THRU_END_OF (yg - 1)
2618 - LEAPS_THRU_END_OF (y - 1));
2619 DEBUG("%s: totaldays: %lld", __func__, totaldays);
2621 DEBUG("%s: y: %lld", __func__, y);
2624 system_time->wYear = y;
2625 DEBUG("%s: Year: %d", __func__, system_time->wYear);
2627 ip = mon_yday[isleap(y)];
2629 for(y=11; totaldays < ip[y]; --y) {
2633 DEBUG("%s: totaldays: %lld", __func__, totaldays);
2635 system_time->wMonth = y + 1;
2636 DEBUG("%s: Month: %d", __func__, system_time->wMonth);
2638 system_time->wDay = totaldays + 1;
2639 DEBUG("%s: Day: %d", __func__, system_time->wDay);
2644 gpointer FindFirstFile (const gunichar2 *pattern, WapiFindData *find_data)
2646 struct _WapiHandle_find find_handle = {0};
2648 gchar *utf8_pattern = NULL, *dir_part, *entry_part;
2651 if (pattern == NULL) {
2652 DEBUG ("%s: pattern is NULL", __func__);
2654 SetLastError (ERROR_PATH_NOT_FOUND);
2655 return(INVALID_HANDLE_VALUE);
2658 utf8_pattern = mono_unicode_to_external (pattern);
2659 if (utf8_pattern == NULL) {
2660 DEBUG ("%s: unicode conversion returned NULL", __func__);
2662 SetLastError (ERROR_INVALID_NAME);
2663 return(INVALID_HANDLE_VALUE);
2666 DEBUG ("%s: looking for [%s]", __func__, utf8_pattern);
2668 /* Figure out which bit of the pattern is the directory */
2669 dir_part = _wapi_dirname (utf8_pattern);
2670 entry_part = _wapi_basename (utf8_pattern);
2673 /* Don't do this check for now, it breaks if directories
2674 * really do have metachars in their names (see bug 58116).
2675 * FIXME: Figure out a better solution to keep some checks...
2677 if (strchr (dir_part, '*') || strchr (dir_part, '?')) {
2678 SetLastError (ERROR_INVALID_NAME);
2680 g_free (entry_part);
2681 g_free (utf8_pattern);
2682 return(INVALID_HANDLE_VALUE);
2686 /* The pattern can specify a directory or a set of files.
2688 * The pattern can have wildcard characters ? and *, but only
2689 * in the section after the last directory delimiter. (Return
2690 * ERROR_INVALID_NAME if there are wildcards in earlier path
2691 * sections.) "*" has the usual 0-or-more chars meaning. "?"
2692 * means "match one character", "??" seems to mean "match one
2693 * or two characters", "???" seems to mean "match one, two or
2694 * three characters", etc. Windows will also try and match
2695 * the mangled "short name" of files, so 8 character patterns
2696 * with wildcards will show some surprising results.
2698 * All the written documentation I can find says that '?'
2699 * should only match one character, and doesn't mention '??',
2700 * '???' etc. I'm going to assume that the strict behaviour
2701 * (ie '???' means three and only three characters) is the
2702 * correct one, because that lets me use fnmatch(3) rather
2703 * than mess around with regexes.
2706 find_handle.namelist = NULL;
2707 result = _wapi_io_scandir (dir_part, entry_part,
2708 &find_handle.namelist);
2711 /* No files, which windows seems to call
2714 SetLastError (ERROR_FILE_NOT_FOUND);
2715 g_free (utf8_pattern);
2716 g_free (entry_part);
2718 return (INVALID_HANDLE_VALUE);
2722 #ifdef DEBUG_ENABLED
2723 gint errnum = errno;
2725 _wapi_set_last_path_error_from_errno (dir_part, NULL);
2726 DEBUG ("%s: scandir error: %s", __func__,
2727 g_strerror (errnum));
2728 g_free (utf8_pattern);
2729 g_free (entry_part);
2731 return (INVALID_HANDLE_VALUE);
2734 g_free (utf8_pattern);
2735 g_free (entry_part);
2737 DEBUG ("%s: Got %d matches", __func__, result);
2739 find_handle.dir_part = dir_part;
2740 find_handle.num = result;
2741 find_handle.count = 0;
2743 handle = _wapi_handle_new (WAPI_HANDLE_FIND, &find_handle);
2744 if (handle == _WAPI_HANDLE_INVALID) {
2745 g_warning ("%s: error creating find handle", __func__);
2747 g_free (entry_part);
2748 g_free (utf8_pattern);
2749 SetLastError (ERROR_GEN_FAILURE);
2751 return(INVALID_HANDLE_VALUE);
2754 if (handle != INVALID_HANDLE_VALUE &&
2755 !FindNextFile (handle, find_data)) {
2757 SetLastError (ERROR_NO_MORE_FILES);
2758 handle = INVALID_HANDLE_VALUE;
2764 gboolean FindNextFile (gpointer handle, WapiFindData *find_data)
2766 struct _WapiHandle_find *find_handle;
2768 struct stat buf, linkbuf;
2771 gchar *utf8_filename, *utf8_basename;
2772 gunichar2 *utf16_basename;
2776 gboolean ret = FALSE;
2778 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FIND,
2779 (gpointer *)&find_handle);
2781 g_warning ("%s: error looking up find handle %p", __func__,
2783 SetLastError (ERROR_INVALID_HANDLE);
2787 thr_ret = _wapi_handle_lock_handle (handle);
2788 g_assert (thr_ret == 0);
2791 if (find_handle->count >= find_handle->num) {
2792 SetLastError (ERROR_NO_MORE_FILES);
2796 /* stat next match */
2798 filename = g_build_filename (find_handle->dir_part, find_handle->namelist[find_handle->count ++], NULL);
2800 result = _wapi_stat (filename, &buf);
2801 if (result == -1 && errno == ENOENT) {
2802 /* Might be a dangling symlink */
2803 result = _wapi_lstat (filename, &buf);
2807 DEBUG ("%s: stat failed: %s", __func__, filename);
2813 #ifndef __native_client__
2814 result = _wapi_lstat (filename, &linkbuf);
2816 DEBUG ("%s: lstat failed: %s", __func__, filename);
2823 utf8_filename = mono_utf8_from_external (filename);
2824 if (utf8_filename == NULL) {
2825 /* We couldn't turn this filename into utf8 (eg the
2826 * encoding of the name wasn't convertible), so just
2829 g_warning ("%s: Bad encoding for '%s'\nConsider using MONO_EXTERNAL_ENCODINGS\n", __func__, filename);
2836 DEBUG ("%s: Found [%s]", __func__, utf8_filename);
2838 /* fill data block */
2840 if (buf.st_mtime < buf.st_ctime)
2841 create_time = buf.st_mtime;
2843 create_time = buf.st_ctime;
2845 #ifdef __native_client__
2846 find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, NULL);
2848 find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, &linkbuf);
2851 _wapi_time_t_to_filetime (create_time, &find_data->ftCreationTime);
2852 _wapi_time_t_to_filetime (buf.st_atime, &find_data->ftLastAccessTime);
2853 _wapi_time_t_to_filetime (buf.st_mtime, &find_data->ftLastWriteTime);
2855 if (find_data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
2856 find_data->nFileSizeHigh = 0;
2857 find_data->nFileSizeLow = 0;
2859 find_data->nFileSizeHigh = buf.st_size >> 32;
2860 find_data->nFileSizeLow = buf.st_size & 0xFFFFFFFF;
2863 find_data->dwReserved0 = 0;
2864 find_data->dwReserved1 = 0;
2866 utf8_basename = _wapi_basename (utf8_filename);
2867 utf16_basename = g_utf8_to_utf16 (utf8_basename, -1, NULL, &bytes,
2869 if(utf16_basename==NULL) {
2870 g_free (utf8_basename);
2871 g_free (utf8_filename);
2876 /* utf16 is 2 * utf8 */
2879 memset (find_data->cFileName, '\0', (MAX_PATH*2));
2881 /* Truncating a utf16 string like this might leave the last
2884 memcpy (find_data->cFileName, utf16_basename,
2885 bytes<(MAX_PATH*2)-2?bytes:(MAX_PATH*2)-2);
2887 find_data->cAlternateFileName [0] = 0; /* not used */
2889 g_free (utf8_basename);
2890 g_free (utf8_filename);
2891 g_free (utf16_basename);
2894 thr_ret = _wapi_handle_unlock_handle (handle);
2895 g_assert (thr_ret == 0);
2902 * @wapi_handle: the find handle to close.
2904 * Closes find handle @wapi_handle
2906 * Return value: %TRUE on success, %FALSE otherwise.
2908 gboolean FindClose (gpointer handle)
2910 struct _WapiHandle_find *find_handle;
2914 if (handle == NULL) {
2915 SetLastError (ERROR_INVALID_HANDLE);
2919 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FIND,
2920 (gpointer *)&find_handle);
2922 g_warning ("%s: error looking up find handle %p", __func__,
2924 SetLastError (ERROR_INVALID_HANDLE);
2928 thr_ret = _wapi_handle_lock_handle (handle);
2929 g_assert (thr_ret == 0);
2931 g_strfreev (find_handle->namelist);
2932 g_free (find_handle->dir_part);
2934 thr_ret = _wapi_handle_unlock_handle (handle);
2935 g_assert (thr_ret == 0);
2937 _wapi_handle_unref (handle);
2944 * @name: a pointer to a NULL-terminated unicode string, that names
2945 * the directory to be created.
2946 * @security: ignored for now
2948 * Creates directory @name
2950 * Return value: %TRUE on success, %FALSE otherwise.
2952 gboolean CreateDirectory (const gunichar2 *name,
2953 WapiSecurityAttributes *security)
2959 DEBUG("%s: name is NULL", __func__);
2961 SetLastError (ERROR_INVALID_NAME);
2965 utf8_name = mono_unicode_to_external (name);
2966 if (utf8_name == NULL) {
2967 DEBUG ("%s: unicode conversion returned NULL", __func__);
2969 SetLastError (ERROR_INVALID_NAME);
2973 result = _wapi_mkdir (utf8_name, 0777);
2980 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
2987 * @name: a pointer to a NULL-terminated unicode string, that names
2988 * the directory to be removed.
2990 * Removes directory @name
2992 * Return value: %TRUE on success, %FALSE otherwise.
2994 gboolean RemoveDirectory (const gunichar2 *name)
3000 DEBUG("%s: name is NULL", __func__);
3002 SetLastError (ERROR_INVALID_NAME);
3006 utf8_name = mono_unicode_to_external (name);
3007 if (utf8_name == NULL) {
3008 DEBUG ("%s: unicode conversion returned NULL", __func__);
3010 SetLastError (ERROR_INVALID_NAME);
3014 result = _wapi_rmdir (utf8_name);
3016 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3027 * GetFileAttributes:
3028 * @name: a pointer to a NULL-terminated unicode filename.
3030 * Gets the attributes for @name;
3032 * Return value: %INVALID_FILE_ATTRIBUTES on failure
3034 guint32 GetFileAttributes (const gunichar2 *name)
3037 struct stat buf, linkbuf;
3042 DEBUG("%s: name is NULL", __func__);
3044 SetLastError (ERROR_INVALID_NAME);
3048 utf8_name = mono_unicode_to_external (name);
3049 if (utf8_name == NULL) {
3050 DEBUG ("%s: unicode conversion returned NULL", __func__);
3052 SetLastError (ERROR_INVALID_PARAMETER);
3053 return (INVALID_FILE_ATTRIBUTES);
3056 result = _wapi_stat (utf8_name, &buf);
3057 if (result == -1 && errno == ENOENT) {
3058 /* Might be a dangling symlink... */
3059 result = _wapi_lstat (utf8_name, &buf);
3063 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3065 return (INVALID_FILE_ATTRIBUTES);
3068 #ifndef __native_client__
3069 result = _wapi_lstat (utf8_name, &linkbuf);
3071 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3073 return (INVALID_FILE_ATTRIBUTES);
3077 #ifdef __native_client__
3078 ret = _wapi_stat_to_file_attributes (utf8_name, &buf, NULL);
3080 ret = _wapi_stat_to_file_attributes (utf8_name, &buf, &linkbuf);
3089 * GetFileAttributesEx:
3090 * @name: a pointer to a NULL-terminated unicode filename.
3091 * @level: must be GetFileExInfoStandard
3092 * @info: pointer to a WapiFileAttributesData structure
3094 * Gets attributes, size and filetimes for @name;
3096 * Return value: %TRUE on success, %FALSE on failure
3098 gboolean GetFileAttributesEx (const gunichar2 *name, WapiGetFileExInfoLevels level, gpointer info)
3101 WapiFileAttributesData *data;
3103 struct stat buf, linkbuf;
3107 if (level != GetFileExInfoStandard) {
3108 DEBUG ("%s: info level %d not supported.", __func__,
3111 SetLastError (ERROR_INVALID_PARAMETER);
3116 DEBUG("%s: name is NULL", __func__);
3118 SetLastError (ERROR_INVALID_NAME);
3122 utf8_name = mono_unicode_to_external (name);
3123 if (utf8_name == NULL) {
3124 DEBUG ("%s: unicode conversion returned NULL", __func__);
3126 SetLastError (ERROR_INVALID_PARAMETER);
3130 result = _wapi_stat (utf8_name, &buf);
3131 if (result == -1 && errno == ENOENT) {
3132 /* Might be a dangling symlink... */
3133 result = _wapi_lstat (utf8_name, &buf);
3137 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3142 result = _wapi_lstat (utf8_name, &linkbuf);
3144 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3149 /* fill data block */
3151 data = (WapiFileAttributesData *)info;
3153 if (buf.st_mtime < buf.st_ctime)
3154 create_time = buf.st_mtime;
3156 create_time = buf.st_ctime;
3158 data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_name,
3164 _wapi_time_t_to_filetime (create_time, &data->ftCreationTime);
3165 _wapi_time_t_to_filetime (buf.st_atime, &data->ftLastAccessTime);
3166 _wapi_time_t_to_filetime (buf.st_mtime, &data->ftLastWriteTime);
3168 if (data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
3169 data->nFileSizeHigh = 0;
3170 data->nFileSizeLow = 0;
3173 data->nFileSizeHigh = buf.st_size >> 32;
3174 data->nFileSizeLow = buf.st_size & 0xFFFFFFFF;
3182 * @name: name of file
3183 * @attrs: attributes to set
3185 * Changes the attributes on a named file.
3187 * Return value: %TRUE on success, %FALSE on failure.
3189 extern gboolean SetFileAttributes (const gunichar2 *name, guint32 attrs)
3191 /* FIXME: think of something clever to do on unix */
3197 * Currently we only handle one *internal* case, with a value that is
3198 * not standard: 0x80000000, which means `set executable bit'
3202 DEBUG("%s: name is NULL", __func__);
3204 SetLastError (ERROR_INVALID_NAME);
3208 utf8_name = mono_unicode_to_external (name);
3209 if (utf8_name == NULL) {
3210 DEBUG ("%s: unicode conversion returned NULL", __func__);
3212 SetLastError (ERROR_INVALID_NAME);
3216 result = _wapi_stat (utf8_name, &buf);
3217 if (result == -1 && errno == ENOENT) {
3218 /* Might be a dangling symlink... */
3219 result = _wapi_lstat (utf8_name, &buf);
3223 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3228 /* Contrary to the documentation, ms allows NORMAL to be
3229 * specified along with other attributes, so dont bother to
3230 * catch that case here.
3232 if (attrs & FILE_ATTRIBUTE_READONLY) {
3233 result = _wapi_chmod (utf8_name, buf.st_mode & ~(S_IWUSR | S_IWOTH | S_IWGRP));
3235 result = _wapi_chmod (utf8_name, buf.st_mode | S_IWUSR);
3238 /* Ignore the other attributes for now */
3240 if (attrs & 0x80000000){
3241 mode_t exec_mask = 0;
3243 if ((buf.st_mode & S_IRUSR) != 0)
3244 exec_mask |= S_IXUSR;
3246 if ((buf.st_mode & S_IRGRP) != 0)
3247 exec_mask |= S_IXGRP;
3249 if ((buf.st_mode & S_IROTH) != 0)
3250 exec_mask |= S_IXOTH;
3252 result = chmod (utf8_name, buf.st_mode | exec_mask);
3254 /* Don't bother to reset executable (might need to change this
3264 * GetCurrentDirectory
3265 * @length: size of the buffer
3266 * @buffer: pointer to buffer that recieves path
3268 * Retrieves the current directory for the current process.
3270 * Return value: number of characters in buffer on success, zero on failure
3272 extern guint32 GetCurrentDirectory (guint32 length, gunichar2 *buffer)
3274 gunichar2 *utf16_path;
3278 #ifdef __native_client__
3279 gchar *path = g_get_current_dir ();
3280 if (length < strlen(path) + 1 || path == NULL)
3282 memcpy (buffer, path, strlen(path) + 1);
3284 if (getcwd ((char*)buffer, length) == NULL) {
3285 if (errno == ERANGE) { /*buffer length is not big enough */
3286 gchar *path = g_get_current_dir (); /*FIXME g_get_current_dir doesn't work with broken paths and calling it just to know the path length is silly*/
3289 utf16_path = mono_unicode_from_external (path, &bytes);
3290 g_free (utf16_path);
3294 _wapi_set_last_error_from_errno ();
3299 utf16_path = mono_unicode_from_external ((gchar*)buffer, &bytes);
3300 count = (bytes/2)+1;
3301 g_assert (count <= length); /*getcwd must have failed before with ERANGE*/
3303 /* Add the terminator */
3304 memset (buffer, '\0', bytes+2);
3305 memcpy (buffer, utf16_path, bytes);
3307 g_free (utf16_path);
3313 * SetCurrentDirectory
3314 * @path: path to new directory
3316 * Changes the directory path for the current process.
3318 * Return value: %TRUE on success, %FALSE on failure.
3320 extern gboolean SetCurrentDirectory (const gunichar2 *path)
3326 SetLastError (ERROR_INVALID_PARAMETER);
3330 utf8_path = mono_unicode_to_external (path);
3331 if (_wapi_chdir (utf8_path) != 0) {
3332 _wapi_set_last_error_from_errno ();
3342 gboolean CreatePipe (gpointer *readpipe, gpointer *writepipe,
3343 WapiSecurityAttributes *security G_GNUC_UNUSED, guint32 size)
3345 struct _WapiHandle_file pipe_read_handle = {0};
3346 struct _WapiHandle_file pipe_write_handle = {0};
3347 gpointer read_handle;
3348 gpointer write_handle;
3352 mono_once (&io_ops_once, io_ops_init);
3354 DEBUG ("%s: Creating pipe", __func__);
3358 DEBUG ("%s: Error creating pipe: %s", __func__,
3361 _wapi_set_last_error_from_errno ();
3365 if (filedes[0] >= _wapi_fd_reserve ||
3366 filedes[1] >= _wapi_fd_reserve) {
3367 DEBUG ("%s: File descriptor is too big", __func__);
3369 SetLastError (ERROR_TOO_MANY_OPEN_FILES);
3377 /* filedes[0] is open for reading, filedes[1] for writing */
3379 pipe_read_handle.fd = filedes [0];
3380 pipe_read_handle.fileaccess = GENERIC_READ;
3381 read_handle = _wapi_handle_new_fd (WAPI_HANDLE_PIPE, filedes[0],
3383 if (read_handle == _WAPI_HANDLE_INVALID) {
3384 g_warning ("%s: error creating pipe read handle", __func__);
3387 SetLastError (ERROR_GEN_FAILURE);
3392 pipe_write_handle.fd = filedes [1];
3393 pipe_write_handle.fileaccess = GENERIC_WRITE;
3394 write_handle = _wapi_handle_new_fd (WAPI_HANDLE_PIPE, filedes[1],
3395 &pipe_write_handle);
3396 if (write_handle == _WAPI_HANDLE_INVALID) {
3397 g_warning ("%s: error creating pipe write handle", __func__);
3398 _wapi_handle_unref (read_handle);
3402 SetLastError (ERROR_GEN_FAILURE);
3407 *readpipe = read_handle;
3408 *writepipe = write_handle;
3410 DEBUG ("%s: Returning pipe: read handle %p, write handle %p",
3411 __func__, read_handle, write_handle);
3416 #ifdef HAVE_GETFSSTAT
3417 /* Darwin has getfsstat */
3418 gint32 GetLogicalDriveStrings (guint32 len, gunichar2 *buf)
3420 struct statfs *stats;
3423 glong length, total = 0;
3425 n = getfsstat (NULL, 0, MNT_NOWAIT);
3428 size = n * sizeof (struct statfs);
3429 stats = (struct statfs *) g_malloc (size);
3432 if (getfsstat (stats, size, MNT_NOWAIT) == -1){
3436 for (i = 0; i < n; i++){
3437 dir = g_utf8_to_utf16 (stats [i].f_mntonname, -1, NULL, &length, NULL);
3438 if (total + length < len){
3439 memcpy (buf + total, dir, sizeof (gunichar2) * length);
3440 buf [total+length] = 0;
3443 total += length + 1;
3452 /* In-place octal sequence replacement */
3454 unescape_octal (gchar *str)
3463 while (*rptr != '\0') {
3464 if (*rptr == '\\') {
3467 c = (*(rptr++) - '0') << 6;
3468 c += (*(rptr++) - '0') << 3;
3469 c += *(rptr++) - '0';
3471 } else if (wptr != rptr) {
3479 static gint32 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf);
3482 #define GET_LOGICAL_DRIVE_STRINGS_BUFFER 512
3483 #define GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER 512
3484 #define GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER 64
3489 guint32 buffer_index;
3490 guint32 mountpoint_index;
3491 guint32 field_number;
3492 guint32 allocated_size;
3493 guint32 fsname_index;
3494 guint32 fstype_index;
3495 gchar mountpoint [GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER + 1];
3496 gchar *mountpoint_allocated;
3497 gchar buffer [GET_LOGICAL_DRIVE_STRINGS_BUFFER];
3498 gchar fsname [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
3499 gchar fstype [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
3502 gboolean check_mount_source;
3503 } LinuxMountInfoParseState;
3505 static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
3506 static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
3507 static void append_to_mountpoint (LinuxMountInfoParseState *state);
3508 static gboolean add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
3510 gint32 GetLogicalDriveStrings (guint32 len, gunichar2 *buf)
3514 LinuxMountInfoParseState state;
3515 gboolean (*parser)(guint32, gunichar2*, LinuxMountInfoParseState*) = NULL;
3517 memset (buf, 0, len * sizeof (gunichar2));
3518 fd = open ("/proc/self/mountinfo", O_RDONLY);
3520 parser = GetLogicalDriveStrings_MountInfo;
3522 fd = open ("/proc/mounts", O_RDONLY);
3524 parser = GetLogicalDriveStrings_Mounts;
3528 ret = GetLogicalDriveStrings_Mtab (len, buf);
3532 memset (&state, 0, sizeof (LinuxMountInfoParseState));
3533 state.field_number = 1;
3534 state.delimiter = ' ';
3536 while ((state.nbytes = read (fd, state.buffer, GET_LOGICAL_DRIVE_STRINGS_BUFFER)) > 0) {
3537 state.buffer_index = 0;
3539 while ((*parser)(len, buf, &state)) {
3540 if (state.buffer [state.buffer_index] == '\n') {
3541 gboolean quit = add_drive_string (len, buf, &state);
3542 state.field_number = 1;
3543 state.buffer_index++;
3544 if (state.mountpoint_allocated) {
3545 g_free (state.mountpoint_allocated);
3546 state.mountpoint_allocated = NULL;
3563 static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
3567 if (state->field_number == 1)
3568 state->check_mount_source = TRUE;
3570 while (state->buffer_index < (guint32)state->nbytes) {
3571 if (state->buffer [state->buffer_index] == state->delimiter) {
3572 state->field_number++;
3573 switch (state->field_number) {
3575 state->mountpoint_index = 0;
3579 if (state->mountpoint_allocated)
3580 state->mountpoint_allocated [state->mountpoint_index] = 0;
3582 state->mountpoint [state->mountpoint_index] = 0;
3586 ptr = (gchar*)memchr (state->buffer + state->buffer_index, '\n', GET_LOGICAL_DRIVE_STRINGS_BUFFER - state->buffer_index);
3588 state->buffer_index = (ptr - (gchar*)state->buffer) - 1;
3590 state->buffer_index = state->nbytes;
3593 state->buffer_index++;
3595 } else if (state->buffer [state->buffer_index] == '\n')
3598 switch (state->field_number) {
3600 if (state->check_mount_source) {
3601 if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
3602 /* We can ignore the rest, it's a device
3604 state->check_mount_source = FALSE;
3605 state->fsname [state->fsname_index++] = '/';
3608 if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3609 state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
3614 append_to_mountpoint (state);
3618 if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3619 state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
3623 state->buffer_index++;
3629 static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
3631 while (state->buffer_index < (guint32)state->nbytes) {
3632 if (state->buffer [state->buffer_index] == state->delimiter) {
3633 state->field_number++;
3634 switch (state->field_number) {
3636 state->mountpoint_index = 0;
3640 if (state->mountpoint_allocated)
3641 state->mountpoint_allocated [state->mountpoint_index] = 0;
3643 state->mountpoint [state->mountpoint_index] = 0;
3647 state->delimiter = '-';
3651 state->delimiter = ' ';
3655 state->check_mount_source = TRUE;
3658 state->buffer_index++;
3660 } else if (state->buffer [state->buffer_index] == '\n')
3663 switch (state->field_number) {
3665 append_to_mountpoint (state);
3669 if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3670 state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
3674 if (state->check_mount_source) {
3675 if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
3676 /* We can ignore the rest, it's a device
3678 state->check_mount_source = FALSE;
3679 state->fsname [state->fsname_index++] = '/';
3682 if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3683 state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
3688 state->buffer_index++;
3695 append_to_mountpoint (LinuxMountInfoParseState *state)
3697 gchar ch = state->buffer [state->buffer_index];
3698 if (state->mountpoint_allocated) {
3699 if (state->mountpoint_index >= state->allocated_size) {
3700 guint32 newsize = (state->allocated_size << 1) + 1;
3701 gchar *newbuf = (gchar *)g_malloc0 (newsize * sizeof (gchar));
3703 memcpy (newbuf, state->mountpoint_allocated, state->mountpoint_index);
3704 g_free (state->mountpoint_allocated);
3705 state->mountpoint_allocated = newbuf;
3706 state->allocated_size = newsize;
3708 state->mountpoint_allocated [state->mountpoint_index++] = ch;
3710 if (state->mountpoint_index >= GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER) {
3711 state->allocated_size = (state->mountpoint_index << 1) + 1;
3712 state->mountpoint_allocated = (gchar *)g_malloc0 (state->allocated_size * sizeof (gchar));
3713 memcpy (state->mountpoint_allocated, state->mountpoint, state->mountpoint_index);
3714 state->mountpoint_allocated [state->mountpoint_index++] = ch;
3716 state->mountpoint [state->mountpoint_index++] = ch;
3721 add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
3723 gboolean quit = FALSE;
3724 gboolean ignore_entry;
3726 if (state->fsname_index == 1 && state->fsname [0] == '/')
3727 ignore_entry = FALSE;
3728 else if (state->fsname_index == 0 || memcmp ("none", state->fsname, state->fsname_index) == 0)
3729 ignore_entry = TRUE;
3730 else if (state->fstype_index >= 5 && memcmp ("fuse.", state->fstype, 5) == 0) {
3731 /* Ignore GNOME's gvfs */
3732 if (state->fstype_index == 21 && memcmp ("fuse.gvfs-fuse-daemon", state->fstype, state->fstype_index) == 0)
3733 ignore_entry = TRUE;
3735 ignore_entry = FALSE;
3736 } else if (state->fstype_index == 3 && memcmp ("nfs", state->fstype, state->fstype_index) == 0)
3737 ignore_entry = FALSE;
3739 ignore_entry = TRUE;
3741 if (!ignore_entry) {
3744 gchar *mountpoint = state->mountpoint_allocated ? state->mountpoint_allocated : state->mountpoint;
3746 unescape_octal (mountpoint);
3747 dir = g_utf8_to_utf16 (mountpoint, -1, NULL, &length, NULL);
3748 if (state->total + length + 1 > len) {
3750 state->total = len * 2;
3753 memcpy (buf + state->total, dir, sizeof (gunichar2) * length);
3754 state->total += length;
3758 state->fsname_index = 0;
3759 state->fstype_index = 0;
3765 GetLogicalDriveStrings (guint32 len, gunichar2 *buf)
3767 return GetLogicalDriveStrings_Mtab (len, buf);
3771 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf)
3774 gunichar2 *ptr, *dir;
3775 glong length, total = 0;
3779 memset (buf, 0, sizeof (gunichar2) * (len + 1));
3784 /* Sigh, mntent and friends don't work well.
3785 * It stops on the first line that doesn't begin with a '/'.
3786 * (linux 2.6.5, libc 2.3.2.ds1-12) - Gonz */
3787 fp = fopen ("/etc/mtab", "rt");
3789 fp = fopen ("/etc/mnttab", "rt");
3795 while (fgets (buffer, 512, fp) != NULL) {
3799 splitted = g_strsplit (buffer, " ", 0);
3800 if (!*splitted || !*(splitted + 1)) {
3801 g_strfreev (splitted);
3805 unescape_octal (*(splitted + 1));
3806 dir = g_utf8_to_utf16 (*(splitted + 1), -1, NULL, &length, NULL);
3807 g_strfreev (splitted);
3808 if (total + length + 1 > len) {
3811 return len * 2; /* guess */
3814 memcpy (ptr + total, dir, sizeof (gunichar2) * length);
3816 total += length + 1;
3821 /* Commented out, does not work with my mtab!!! - Gonz */
3822 #ifdef NOTENABLED /* HAVE_MNTENT_H */
3826 gunichar2 *ptr, *dir;
3827 glong len, total = 0;
3830 fp = setmntent ("/etc/mtab", "rt");
3832 fp = setmntent ("/etc/mnttab", "rt");
3838 while ((mnt = getmntent (fp)) != NULL) {
3839 g_print ("GOT %s\n", mnt->mnt_dir);
3840 dir = g_utf8_to_utf16 (mnt->mnt_dir, &len, NULL, NULL, NULL);
3841 if (total + len + 1 > len) {
3842 return len * 2; /* guess */
3845 memcpy (ptr + total, dir, sizeof (gunichar2) * len);
3857 #if defined(HAVE_STATVFS) || defined(HAVE_STATFS)
3858 gboolean GetDiskFreeSpaceEx(const gunichar2 *path_name, WapiULargeInteger *free_bytes_avail,
3859 WapiULargeInteger *total_number_of_bytes,
3860 WapiULargeInteger *total_number_of_free_bytes)
3863 struct statvfs fsstat;
3864 #elif defined(HAVE_STATFS)
3865 struct statfs fsstat;
3867 gboolean isreadonly;
3868 gchar *utf8_path_name;
3870 unsigned long block_size;
3872 if (path_name == NULL) {
3873 utf8_path_name = g_strdup (g_get_current_dir());
3874 if (utf8_path_name == NULL) {
3875 SetLastError (ERROR_DIRECTORY);
3880 utf8_path_name = mono_unicode_to_external (path_name);
3881 if (utf8_path_name == NULL) {
3882 DEBUG("%s: unicode conversion returned NULL", __func__);
3884 SetLastError (ERROR_INVALID_NAME);
3891 ret = statvfs (utf8_path_name, &fsstat);
3892 isreadonly = ((fsstat.f_flag & ST_RDONLY) == ST_RDONLY);
3893 block_size = fsstat.f_frsize;
3894 #elif defined(HAVE_STATFS)
3895 ret = statfs (utf8_path_name, &fsstat);
3896 #if defined (MNT_RDONLY)
3897 isreadonly = ((fsstat.f_flags & MNT_RDONLY) == MNT_RDONLY);
3898 #elif defined (MS_RDONLY)
3899 isreadonly = ((fsstat.f_flags & MS_RDONLY) == MS_RDONLY);
3901 block_size = fsstat.f_bsize;
3903 } while(ret == -1 && errno == EINTR);
3905 g_free(utf8_path_name);
3908 _wapi_set_last_error_from_errno ();
3909 DEBUG ("%s: statvfs failed: %s", __func__, strerror (errno));
3913 /* total number of free bytes for non-root */
3914 if (free_bytes_avail != NULL) {
3916 free_bytes_avail->QuadPart = 0;
3919 free_bytes_avail->QuadPart = block_size * (guint64)fsstat.f_bavail;
3923 /* total number of bytes available for non-root */
3924 if (total_number_of_bytes != NULL) {
3925 total_number_of_bytes->QuadPart = block_size * (guint64)fsstat.f_blocks;
3928 /* total number of bytes available for root */
3929 if (total_number_of_free_bytes != NULL) {
3931 total_number_of_free_bytes->QuadPart = 0;
3934 total_number_of_free_bytes->QuadPart = block_size * (guint64)fsstat.f_bfree;
3941 gboolean GetDiskFreeSpaceEx(const gunichar2 *path_name, WapiULargeInteger *free_bytes_avail,
3942 WapiULargeInteger *total_number_of_bytes,
3943 WapiULargeInteger *total_number_of_free_bytes)
3945 if (free_bytes_avail != NULL) {
3946 free_bytes_avail->QuadPart = (guint64) -1;
3949 if (total_number_of_bytes != NULL) {
3950 total_number_of_bytes->QuadPart = (guint64) -1;
3953 if (total_number_of_free_bytes != NULL) {
3954 total_number_of_free_bytes->QuadPart = (guint64) -1;
3962 * General Unix support
3967 const long fstypeid;
3969 const gchar* fstype;
3972 static _wapi_drive_type _wapi_drive_types[] = {
3974 { DRIVE_REMOTE, "afp" },
3975 { DRIVE_REMOTE, "autofs" },
3976 { DRIVE_CDROM, "cddafs" },
3977 { DRIVE_CDROM, "cd9660" },
3978 { DRIVE_RAMDISK, "devfs" },
3979 { DRIVE_FIXED, "exfat" },
3980 { DRIVE_RAMDISK, "fdesc" },
3981 { DRIVE_REMOTE, "ftp" },
3982 { DRIVE_FIXED, "hfs" },
3983 { DRIVE_FIXED, "msdos" },
3984 { DRIVE_REMOTE, "nfs" },
3985 { DRIVE_FIXED, "ntfs" },
3986 { DRIVE_REMOTE, "smbfs" },
3987 { DRIVE_FIXED, "udf" },
3988 { DRIVE_REMOTE, "webdav" },
3989 { DRIVE_UNKNOWN, NULL }
3991 { DRIVE_FIXED, ADFS_SUPER_MAGIC, "adfs"},
3992 { DRIVE_FIXED, AFFS_SUPER_MAGIC, "affs"},
3993 { DRIVE_REMOTE, AFS_SUPER_MAGIC, "afs"},
3994 { DRIVE_RAMDISK, AUTOFS_SUPER_MAGIC, "autofs"},
3995 { DRIVE_RAMDISK, AUTOFS_SBI_MAGIC, "autofs4"},
3996 { DRIVE_REMOTE, CODA_SUPER_MAGIC, "coda" },
3997 { DRIVE_RAMDISK, CRAMFS_MAGIC, "cramfs"},
3998 { DRIVE_RAMDISK, CRAMFS_MAGIC_WEND, "cramfs"},
3999 { DRIVE_REMOTE, CIFS_MAGIC_NUMBER, "cifs"},
4000 { DRIVE_RAMDISK, DEBUGFS_MAGIC, "debugfs"},
4001 { DRIVE_RAMDISK, SYSFS_MAGIC, "sysfs"},
4002 { DRIVE_RAMDISK, SECURITYFS_MAGIC, "securityfs"},
4003 { DRIVE_RAMDISK, SELINUX_MAGIC, "selinuxfs"},
4004 { DRIVE_RAMDISK, RAMFS_MAGIC, "ramfs"},
4005 { DRIVE_FIXED, SQUASHFS_MAGIC, "squashfs"},
4006 { DRIVE_FIXED, EFS_SUPER_MAGIC, "efs"},
4007 { DRIVE_FIXED, EXT2_SUPER_MAGIC, "ext"},
4008 { DRIVE_FIXED, EXT3_SUPER_MAGIC, "ext"},
4009 { DRIVE_FIXED, EXT4_SUPER_MAGIC, "ext"},
4010 { DRIVE_REMOTE, XENFS_SUPER_MAGIC, "xenfs"},
4011 { DRIVE_FIXED, BTRFS_SUPER_MAGIC, "btrfs"},
4012 { DRIVE_FIXED, HFS_SUPER_MAGIC, "hfs"},
4013 { DRIVE_FIXED, HFSPLUS_SUPER_MAGIC, "hfsplus"},
4014 { DRIVE_FIXED, HPFS_SUPER_MAGIC, "hpfs"},
4015 { DRIVE_RAMDISK, HUGETLBFS_MAGIC, "hugetlbfs"},
4016 { DRIVE_CDROM, ISOFS_SUPER_MAGIC, "iso"},
4017 { DRIVE_FIXED, JFFS2_SUPER_MAGIC, "jffs2"},
4018 { DRIVE_RAMDISK, ANON_INODE_FS_MAGIC, "anon_inode"},
4019 { DRIVE_FIXED, JFS_SUPER_MAGIC, "jfs"},
4020 { DRIVE_FIXED, MINIX_SUPER_MAGIC, "minix"},
4021 { DRIVE_FIXED, MINIX_SUPER_MAGIC2, "minix v2"},
4022 { DRIVE_FIXED, MINIX2_SUPER_MAGIC, "minix2"},
4023 { DRIVE_FIXED, MINIX2_SUPER_MAGIC2, "minix2 v2"},
4024 { DRIVE_FIXED, MINIX3_SUPER_MAGIC, "minix3"},
4025 { DRIVE_FIXED, MSDOS_SUPER_MAGIC, "msdos"},
4026 { DRIVE_REMOTE, NCP_SUPER_MAGIC, "ncp"},
4027 { DRIVE_REMOTE, NFS_SUPER_MAGIC, "nfs"},
4028 { DRIVE_FIXED, NTFS_SB_MAGIC, "ntfs"},
4029 { DRIVE_RAMDISK, OPENPROM_SUPER_MAGIC, "openpromfs"},
4030 { DRIVE_RAMDISK, PROC_SUPER_MAGIC, "proc"},
4031 { DRIVE_FIXED, QNX4_SUPER_MAGIC, "qnx4"},
4032 { DRIVE_FIXED, REISERFS_SUPER_MAGIC, "reiserfs"},
4033 { DRIVE_RAMDISK, ROMFS_MAGIC, "romfs"},
4034 { DRIVE_REMOTE, SMB_SUPER_MAGIC, "samba"},
4035 { DRIVE_RAMDISK, CGROUP_SUPER_MAGIC, "cgroupfs"},
4036 { DRIVE_RAMDISK, FUTEXFS_SUPER_MAGIC, "futexfs"},
4037 { DRIVE_FIXED, SYSV2_SUPER_MAGIC, "sysv2"},
4038 { DRIVE_FIXED, SYSV4_SUPER_MAGIC, "sysv4"},
4039 { DRIVE_RAMDISK, TMPFS_MAGIC, "tmpfs"},
4040 { DRIVE_RAMDISK, DEVPTS_SUPER_MAGIC, "devpts"},
4041 { DRIVE_CDROM, UDF_SUPER_MAGIC, "udf"},
4042 { DRIVE_FIXED, UFS_MAGIC, "ufs"},
4043 { DRIVE_FIXED, UFS_MAGIC_BW, "ufs"},
4044 { DRIVE_FIXED, UFS2_MAGIC, "ufs2"},
4045 { DRIVE_FIXED, UFS_CIGAM, "ufs"},
4046 { DRIVE_RAMDISK, USBDEVICE_SUPER_MAGIC, "usbdev"},
4047 { DRIVE_FIXED, XENIX_SUPER_MAGIC, "xenix"},
4048 { DRIVE_FIXED, XFS_SB_MAGIC, "xfs"},
4049 { DRIVE_RAMDISK, FUSE_SUPER_MAGIC, "fuse"},
4050 { DRIVE_FIXED, V9FS_MAGIC, "9p"},
4051 { DRIVE_REMOTE, CEPH_SUPER_MAGIC, "ceph"},
4052 { DRIVE_RAMDISK, CONFIGFS_MAGIC, "configfs"},
4053 { DRIVE_RAMDISK, ECRYPTFS_SUPER_MAGIC, "eCryptfs"},
4054 { DRIVE_FIXED, EXOFS_SUPER_MAGIC, "exofs"},
4055 { DRIVE_FIXED, VXFS_SUPER_MAGIC, "vxfs"},
4056 { DRIVE_FIXED, VXFS_OLT_MAGIC, "vxfs_olt"},
4057 { DRIVE_REMOTE, GFS2_MAGIC, "gfs2"},
4058 { DRIVE_FIXED, LOGFS_MAGIC_U32, "logfs"},
4059 { DRIVE_FIXED, OCFS2_SUPER_MAGIC, "ocfs2"},
4060 { DRIVE_FIXED, OMFS_MAGIC, "omfs"},
4061 { DRIVE_FIXED, UBIFS_SUPER_MAGIC, "ubifs"},
4062 { DRIVE_UNKNOWN, 0, NULL}
4064 { DRIVE_RAMDISK, "ramfs" },
4065 { DRIVE_RAMDISK, "tmpfs" },
4066 { DRIVE_RAMDISK, "proc" },
4067 { DRIVE_RAMDISK, "sysfs" },
4068 { DRIVE_RAMDISK, "debugfs" },
4069 { DRIVE_RAMDISK, "devpts" },
4070 { DRIVE_RAMDISK, "securityfs" },
4071 { DRIVE_CDROM, "iso9660" },
4072 { DRIVE_FIXED, "ext2" },
4073 { DRIVE_FIXED, "ext3" },
4074 { DRIVE_FIXED, "ext4" },
4075 { DRIVE_FIXED, "sysv" },
4076 { DRIVE_FIXED, "reiserfs" },
4077 { DRIVE_FIXED, "ufs" },
4078 { DRIVE_FIXED, "vfat" },
4079 { DRIVE_FIXED, "msdos" },
4080 { DRIVE_FIXED, "udf" },
4081 { DRIVE_FIXED, "hfs" },
4082 { DRIVE_FIXED, "hpfs" },
4083 { DRIVE_FIXED, "qnx4" },
4084 { DRIVE_FIXED, "ntfs" },
4085 { DRIVE_FIXED, "ntfs-3g" },
4086 { DRIVE_REMOTE, "smbfs" },
4087 { DRIVE_REMOTE, "fuse" },
4088 { DRIVE_REMOTE, "nfs" },
4089 { DRIVE_REMOTE, "nfs4" },
4090 { DRIVE_REMOTE, "cifs" },
4091 { DRIVE_REMOTE, "ncpfs" },
4092 { DRIVE_REMOTE, "coda" },
4093 { DRIVE_REMOTE, "afs" },
4094 { DRIVE_UNKNOWN, NULL }
4099 static guint32 _wapi_get_drive_type(long f_type)
4101 _wapi_drive_type *current;
4103 current = &_wapi_drive_types[0];
4104 while (current->drive_type != DRIVE_UNKNOWN) {
4105 if (current->fstypeid == f_type)
4106 return current->drive_type;
4110 return DRIVE_UNKNOWN;
4113 static guint32 _wapi_get_drive_type(const gchar* fstype)
4115 _wapi_drive_type *current;
4117 current = &_wapi_drive_types[0];
4118 while (current->drive_type != DRIVE_UNKNOWN) {
4119 if (strcmp (current->fstype, fstype) == 0)
4125 return current->drive_type;
4129 #if defined (PLATFORM_MACOSX) || defined (__linux__)
4131 GetDriveTypeFromPath (const char *utf8_root_path_name)
4135 if (statfs (utf8_root_path_name, &buf) == -1)
4136 return DRIVE_UNKNOWN;
4138 return _wapi_get_drive_type (buf.f_fstypename);
4140 return _wapi_get_drive_type (buf.f_type);
4145 GetDriveTypeFromPath (const gchar *utf8_root_path_name)
4152 fp = fopen ("/etc/mtab", "rt");
4154 fp = fopen ("/etc/mnttab", "rt");
4156 return(DRIVE_UNKNOWN);
4159 drive_type = DRIVE_NO_ROOT_DIR;
4160 while (fgets (buffer, 512, fp) != NULL) {
4161 splitted = g_strsplit (buffer, " ", 0);
4162 if (!*splitted || !*(splitted + 1) || !*(splitted + 2)) {
4163 g_strfreev (splitted);
4167 /* compare given root_path_name with the one from mtab,
4168 if length of utf8_root_path_name is zero it must be the root dir */
4169 if (strcmp (*(splitted + 1), utf8_root_path_name) == 0 ||
4170 (strcmp (*(splitted + 1), "/") == 0 && strlen (utf8_root_path_name) == 0)) {
4171 drive_type = _wapi_get_drive_type (*(splitted + 2));
4172 /* it is possible this path might be mounted again with
4173 a known type...keep looking */
4174 if (drive_type != DRIVE_UNKNOWN) {
4175 g_strfreev (splitted);
4180 g_strfreev (splitted);
4188 guint32 GetDriveType(const gunichar2 *root_path_name)
4190 gchar *utf8_root_path_name;
4193 if (root_path_name == NULL) {
4194 utf8_root_path_name = g_strdup (g_get_current_dir());
4195 if (utf8_root_path_name == NULL) {
4196 return(DRIVE_NO_ROOT_DIR);
4200 utf8_root_path_name = mono_unicode_to_external (root_path_name);
4201 if (utf8_root_path_name == NULL) {
4202 DEBUG("%s: unicode conversion returned NULL", __func__);
4203 return(DRIVE_NO_ROOT_DIR);
4206 /* strip trailing slash for compare below */
4207 if (g_str_has_suffix(utf8_root_path_name, "/") && utf8_root_path_name [1] != 0) {
4208 utf8_root_path_name[strlen(utf8_root_path_name) - 1] = 0;
4211 drive_type = GetDriveTypeFromPath (utf8_root_path_name);
4212 g_free (utf8_root_path_name);
4214 return (drive_type);
4217 #if defined (PLATFORM_MACOSX) || defined (__linux__) || defined(PLATFORM_BSD) || defined(__native_client__) || defined(__FreeBSD_kernel__)
4219 get_fstypename (gchar *utfpath)
4221 #if defined (PLATFORM_MACOSX) || defined (__linux__)
4224 _wapi_drive_type *current;
4226 if (statfs (utfpath, &stat) == -1)
4229 return g_strdup (stat.f_fstypename);
4231 current = &_wapi_drive_types[0];
4232 while (current->drive_type != DRIVE_UNKNOWN) {
4233 if (stat.f_type == current->fstypeid)
4234 return g_strdup (current->fstype);
4244 /* Linux has struct statfs which has a different layout */
4246 GetVolumeInformation (const gunichar2 *path, gunichar2 *volumename, int volumesize, int *outserial, int *maxcomp, int *fsflags, gunichar2 *fsbuffer, int fsbuffersize)
4250 gboolean status = FALSE;
4253 // We only support getting the file system type
4254 if (fsbuffer == NULL)
4257 utfpath = mono_unicode_to_external (path);
4258 if ((fstypename = get_fstypename (utfpath)) != NULL){
4259 gunichar2 *ret = g_utf8_to_utf16 (fstypename, -1, NULL, &len, NULL);
4260 if (ret != NULL && len < fsbuffersize){
4261 memcpy (fsbuffer, ret, len * sizeof (gunichar2));
4267 g_free (fstypename);
4276 _wapi_io_init (void)
4278 mono_os_mutex_init (&stdhandle_mutex);