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).
10 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
20 #ifdef HAVE_SYS_STATVFS_H
21 #include <sys/statvfs.h>
23 #if defined(HAVE_SYS_STATFS_H)
24 #include <sys/statfs.h>
26 #if defined(HAVE_SYS_PARAM_H) && defined(HAVE_SYS_MOUNT_H)
27 #include <sys/param.h>
28 #include <sys/mount.h>
30 #include <sys/types.h>
34 #include <sys/ioctl.h>
36 #include <mono/utils/linux_magic.h>
39 #include <mono/io-layer/wapi.h>
40 #include <mono/io-layer/wapi-private.h>
41 #include <mono/io-layer/handles-private.h>
42 #include <mono/io-layer/io-private.h>
43 #include <mono/io-layer/timefuncs-private.h>
44 #include <mono/io-layer/thread-private.h>
45 #include <mono/io-layer/io-portability.h>
46 #include <mono/io-layer/io-trace.h>
47 #include <mono/utils/strenc.h>
48 #include <mono/utils/mono-once.h>
49 #include <mono/utils/mono-logger-internals.h>
51 static void file_close (gpointer handle, gpointer data);
52 static WapiFileType file_getfiletype(void);
53 static gboolean file_read(gpointer handle, gpointer buffer,
54 guint32 numbytes, guint32 *bytesread,
55 WapiOverlapped *overlapped);
56 static gboolean file_write(gpointer handle, gconstpointer buffer,
57 guint32 numbytes, guint32 *byteswritten,
58 WapiOverlapped *overlapped);
59 static gboolean file_flush(gpointer handle);
60 static guint32 file_seek(gpointer handle, gint32 movedistance,
61 gint32 *highmovedistance, WapiSeekMethod method);
62 static gboolean file_setendoffile(gpointer handle);
63 static guint32 file_getfilesize(gpointer handle, guint32 *highsize);
64 static gboolean file_getfiletime(gpointer handle, WapiFileTime *create_time,
65 WapiFileTime *last_access,
66 WapiFileTime *last_write);
67 static gboolean file_setfiletime(gpointer handle,
68 const WapiFileTime *create_time,
69 const WapiFileTime *last_access,
70 const WapiFileTime *last_write);
71 static guint32 GetDriveTypeFromPath (const gchar *utf8_root_path_name);
73 /* File handle is only signalled for overlapped IO */
74 struct _WapiHandleOps _wapi_file_ops = {
75 file_close, /* close */
79 NULL, /* special_wait */
83 void _wapi_file_details (gpointer handle_info)
85 struct _WapiHandle_file *file = (struct _WapiHandle_file *)handle_info;
87 g_print ("[%20s] acc: %c%c%c, shr: %c%c%c, attrs: %5u",
89 file->fileaccess&GENERIC_READ?'R':'.',
90 file->fileaccess&GENERIC_WRITE?'W':'.',
91 file->fileaccess&GENERIC_EXECUTE?'X':'.',
92 file->sharemode&FILE_SHARE_READ?'R':'.',
93 file->sharemode&FILE_SHARE_WRITE?'W':'.',
94 file->sharemode&FILE_SHARE_DELETE?'D':'.',
98 static void console_close (gpointer handle, gpointer data);
99 static WapiFileType console_getfiletype(void);
100 static gboolean console_read(gpointer handle, gpointer buffer,
101 guint32 numbytes, guint32 *bytesread,
102 WapiOverlapped *overlapped);
103 static gboolean console_write(gpointer handle, gconstpointer buffer,
104 guint32 numbytes, guint32 *byteswritten,
105 WapiOverlapped *overlapped);
107 /* Console is mostly the same as file, except it can block waiting for
110 struct _WapiHandleOps _wapi_console_ops = {
111 console_close, /* close */
115 NULL, /* special_wait */
119 void _wapi_console_details (gpointer handle_info)
121 _wapi_file_details (handle_info);
124 /* Find handle has no ops.
126 struct _WapiHandleOps _wapi_find_ops = {
131 NULL, /* special_wait */
135 static void pipe_close (gpointer handle, gpointer data);
136 static WapiFileType pipe_getfiletype (void);
137 static gboolean pipe_read (gpointer handle, gpointer buffer, guint32 numbytes,
138 guint32 *bytesread, WapiOverlapped *overlapped);
139 static gboolean pipe_write (gpointer handle, gconstpointer buffer,
140 guint32 numbytes, guint32 *byteswritten,
141 WapiOverlapped *overlapped);
145 struct _WapiHandleOps _wapi_pipe_ops = {
146 pipe_close, /* close */
150 NULL, /* special_wait */
154 void _wapi_pipe_details (gpointer handle_info)
156 _wapi_file_details (handle_info);
159 static const struct {
160 /* File, console and pipe handles */
161 WapiFileType (*getfiletype)(void);
163 /* File, console and pipe handles */
164 gboolean (*readfile)(gpointer handle, gpointer buffer,
165 guint32 numbytes, guint32 *bytesread,
166 WapiOverlapped *overlapped);
167 gboolean (*writefile)(gpointer handle, gconstpointer buffer,
168 guint32 numbytes, guint32 *byteswritten,
169 WapiOverlapped *overlapped);
170 gboolean (*flushfile)(gpointer handle);
173 guint32 (*seek)(gpointer handle, gint32 movedistance,
174 gint32 *highmovedistance, WapiSeekMethod method);
175 gboolean (*setendoffile)(gpointer handle);
176 guint32 (*getfilesize)(gpointer handle, guint32 *highsize);
177 gboolean (*getfiletime)(gpointer handle, WapiFileTime *create_time,
178 WapiFileTime *last_access,
179 WapiFileTime *last_write);
180 gboolean (*setfiletime)(gpointer handle,
181 const WapiFileTime *create_time,
182 const WapiFileTime *last_access,
183 const WapiFileTime *last_write);
184 } io_ops[WAPI_HANDLE_COUNT]={
185 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
188 file_read, file_write,
189 file_flush, file_seek,
195 {console_getfiletype,
198 NULL, NULL, NULL, NULL, NULL, NULL},
200 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
202 {NULL, NULL, NULL, 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},
207 /* socket (will need at least read and write) */
208 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
210 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
212 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
217 NULL, NULL, NULL, NULL, NULL, NULL},
220 static mono_once_t io_ops_once=MONO_ONCE_INIT;
221 static gboolean lock_while_writing = FALSE;
223 static void io_ops_init (void)
225 /* _wapi_handle_register_capabilities (WAPI_HANDLE_FILE, */
226 /* WAPI_HANDLE_CAP_WAIT); */
227 /* _wapi_handle_register_capabilities (WAPI_HANDLE_CONSOLE, */
228 /* WAPI_HANDLE_CAP_WAIT); */
230 if (g_getenv ("MONO_STRICT_IO_EMULATION") != NULL) {
231 lock_while_writing = TRUE;
235 /* Some utility functions.
239 * Check if a file is writable by the current user.
241 * This is is a best effort kind of thing. It assumes a reasonable sane set
242 * of permissions by the underlying OS.
244 * We generally assume that basic unix permission bits are authoritative. Which might not
245 * be the case under systems with extended permissions systems (posix ACLs, SELinux, OSX/iOS sandboxing, etc)
247 * The choice of access as the fallback is due to the expected lower overhead compared to trying to open the file.
249 * The only expected problem with using access are for root, setuid or setgid programs as access is not consistent
250 * under those situations. It's to be expected that this should not happen in practice as those bits are very dangerous
251 * and should not be used with a dynamic runtime.
254 is_file_writable (struct stat *st, const char *path)
257 // OS X Finder "locked" or `ls -lO` "uchg".
258 // This only covers one of several cases where an OS X file could be unwritable through special flags.
259 if (st->st_flags & (UF_IMMUTABLE|SF_IMMUTABLE))
263 /* Is it globally writable? */
264 if (st->st_mode & S_IWOTH)
267 /* Am I the owner? */
268 if ((st->st_uid == geteuid ()) && (st->st_mode & S_IWUSR))
271 /* Am I in the same group? */
272 if ((st->st_gid == getegid ()) && (st->st_mode & S_IWGRP))
275 /* Fallback to using access(2). It's not ideal as it might not take into consideration euid/egid
276 * but it's the only sane option we have on unix.
278 return access (path, W_OK) == 0;
282 static guint32 _wapi_stat_to_file_attributes (const gchar *pathname,
289 /* FIXME: this could definitely be better, but there seems to
290 * be no pattern to the attributes that are set
293 /* Sockets (0140000) != Directory (040000) + Regular file (0100000) */
294 if (S_ISSOCK (buf->st_mode))
295 buf->st_mode &= ~S_IFSOCK; /* don't consider socket protection */
297 filename = _wapi_basename (pathname);
299 if (S_ISDIR (buf->st_mode)) {
300 attrs = FILE_ATTRIBUTE_DIRECTORY;
301 if (!is_file_writable (buf, pathname)) {
302 attrs |= FILE_ATTRIBUTE_READONLY;
304 if (filename[0] == '.') {
305 attrs |= FILE_ATTRIBUTE_HIDDEN;
308 if (!is_file_writable (buf, pathname)) {
309 attrs = FILE_ATTRIBUTE_READONLY;
311 if (filename[0] == '.') {
312 attrs |= FILE_ATTRIBUTE_HIDDEN;
314 } else if (filename[0] == '.') {
315 attrs = FILE_ATTRIBUTE_HIDDEN;
317 attrs = FILE_ATTRIBUTE_NORMAL;
322 if (S_ISLNK (lbuf->st_mode)) {
323 attrs |= FILE_ATTRIBUTE_REPARSE_POINT;
333 _wapi_set_last_error_from_errno (void)
335 SetLastError (_wapi_get_win32_file_error (errno));
338 static void _wapi_set_last_path_error_from_errno (const gchar *dir,
341 if (errno == ENOENT) {
342 /* Check the path - if it's a missing directory then
343 * we need to set PATH_NOT_FOUND not FILE_NOT_FOUND
349 dirname = _wapi_dirname (path);
351 dirname = g_strdup (dir);
354 if (_wapi_access (dirname, F_OK) == 0) {
355 SetLastError (ERROR_FILE_NOT_FOUND);
357 SetLastError (ERROR_PATH_NOT_FOUND);
362 _wapi_set_last_error_from_errno ();
368 static void file_close (gpointer handle, gpointer data)
370 struct _WapiHandle_file *file_handle = (struct _WapiHandle_file *)data;
371 int fd = file_handle->fd;
373 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing file handle %p [%s]", __func__, handle,
374 file_handle->filename);
376 if (file_handle->attrs & FILE_FLAG_DELETE_ON_CLOSE)
377 _wapi_unlink (file_handle->filename);
379 g_free (file_handle->filename);
381 if (file_handle->share_info)
382 _wapi_handle_share_release (file_handle->share_info);
387 static WapiFileType file_getfiletype(void)
389 return(FILE_TYPE_DISK);
392 static gboolean file_read(gpointer handle, gpointer buffer,
393 guint32 numbytes, guint32 *bytesread,
394 WapiOverlapped *overlapped)
396 struct _WapiHandle_file *file_handle;
400 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
401 (gpointer *)&file_handle);
403 g_warning ("%s: error looking up file handle %p", __func__,
405 SetLastError (ERROR_INVALID_HANDLE);
409 fd = file_handle->fd;
410 if(bytesread!=NULL) {
414 if(!(file_handle->fileaccess & GENERIC_READ) &&
415 !(file_handle->fileaccess & GENERIC_ALL)) {
416 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
417 __func__, handle, file_handle->fileaccess);
419 SetLastError (ERROR_ACCESS_DENIED);
424 ret = read (fd, buffer, numbytes);
425 } while (ret == -1 && errno == EINTR &&
426 !_wapi_thread_cur_apc_pending());
431 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__,
432 handle, strerror(err));
433 SetLastError (_wapi_get_win32_file_error (err));
437 if (bytesread != NULL) {
444 static gboolean file_write(gpointer handle, gconstpointer buffer,
445 guint32 numbytes, guint32 *byteswritten,
446 WapiOverlapped *overlapped G_GNUC_UNUSED)
448 struct _WapiHandle_file *file_handle;
451 off_t current_pos = 0;
453 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
454 (gpointer *)&file_handle);
456 g_warning ("%s: error looking up file handle %p", __func__,
458 SetLastError (ERROR_INVALID_HANDLE);
462 fd = file_handle->fd;
464 if(byteswritten!=NULL) {
468 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
469 !(file_handle->fileaccess & GENERIC_ALL)) {
470 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
472 SetLastError (ERROR_ACCESS_DENIED);
476 if (lock_while_writing) {
477 /* Need to lock the region we're about to write to,
478 * because we only do advisory locking on POSIX
481 current_pos = lseek (fd, (off_t)0, SEEK_CUR);
482 if (current_pos == -1) {
483 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p lseek failed: %s", __func__,
484 handle, strerror (errno));
485 _wapi_set_last_error_from_errno ();
489 if (_wapi_lock_file_region (fd, current_pos,
490 numbytes) == FALSE) {
491 /* The error has already been set */
497 ret = write (fd, buffer, numbytes);
498 } while (ret == -1 && errno == EINTR &&
499 !_wapi_thread_cur_apc_pending());
501 if (lock_while_writing) {
502 _wapi_unlock_file_region (fd, current_pos, numbytes);
506 if (errno == EINTR) {
509 _wapi_set_last_error_from_errno ();
511 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s",
512 __func__, handle, strerror(errno));
517 if (byteswritten != NULL) {
523 static gboolean file_flush(gpointer handle)
525 struct _WapiHandle_file *file_handle;
529 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
530 (gpointer *)&file_handle);
532 g_warning ("%s: error looking up file handle %p", __func__,
534 SetLastError (ERROR_INVALID_HANDLE);
538 fd = file_handle->fd;
540 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
541 !(file_handle->fileaccess & GENERIC_ALL)) {
542 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
544 SetLastError (ERROR_ACCESS_DENIED);
550 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fsync of handle %p error: %s", __func__, handle,
553 _wapi_set_last_error_from_errno ();
560 static guint32 file_seek(gpointer handle, gint32 movedistance,
561 gint32 *highmovedistance, WapiSeekMethod method)
563 struct _WapiHandle_file *file_handle;
565 gint64 offset, newpos;
569 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
570 (gpointer *)&file_handle);
572 g_warning ("%s: error looking up file handle %p", __func__,
574 SetLastError (ERROR_INVALID_HANDLE);
575 return(INVALID_SET_FILE_POINTER);
578 fd = file_handle->fd;
580 if(!(file_handle->fileaccess & GENERIC_READ) &&
581 !(file_handle->fileaccess & GENERIC_WRITE) &&
582 !(file_handle->fileaccess & GENERIC_ALL)) {
583 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ or GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
585 SetLastError (ERROR_ACCESS_DENIED);
586 return(INVALID_SET_FILE_POINTER);
600 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: invalid seek type %d", __func__, method);
602 SetLastError (ERROR_INVALID_PARAMETER);
603 return(INVALID_SET_FILE_POINTER);
606 #ifdef HAVE_LARGE_FILE_SUPPORT
607 if(highmovedistance==NULL) {
609 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: setting offset to %lld (low %d)", __func__,
610 offset, movedistance);
612 offset=((gint64) *highmovedistance << 32) | (guint32)movedistance;
614 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: setting offset to %lld 0x%llx (high %d 0x%x, low %d 0x%x)", __func__, offset, offset, *highmovedistance, *highmovedistance, movedistance, movedistance);
620 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: moving handle %p by %lld bytes from %d", __func__,
621 handle, (long long)offset, whence);
623 #ifdef PLATFORM_ANDROID
624 /* bionic doesn't support -D_FILE_OFFSET_BITS=64 */
625 newpos=lseek64(fd, offset, whence);
627 newpos=lseek(fd, offset, whence);
630 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lseek on handle %p returned error %s",
631 __func__, handle, strerror(errno));
633 _wapi_set_last_error_from_errno ();
634 return(INVALID_SET_FILE_POINTER);
637 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lseek returns %lld", __func__, newpos);
639 #ifdef HAVE_LARGE_FILE_SUPPORT
640 ret=newpos & 0xFFFFFFFF;
641 if(highmovedistance!=NULL) {
642 *highmovedistance=newpos>>32;
646 if(highmovedistance!=NULL) {
647 /* Accurate, but potentially dodgy :-) */
652 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: move of handle %p returning %d/%d", __func__,
653 handle, ret, highmovedistance==NULL?0:*highmovedistance);
658 static gboolean file_setendoffile(gpointer handle)
660 struct _WapiHandle_file *file_handle;
666 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
667 (gpointer *)&file_handle);
669 g_warning ("%s: error looking up file handle %p", __func__,
671 SetLastError (ERROR_INVALID_HANDLE);
674 fd = file_handle->fd;
676 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
677 !(file_handle->fileaccess & GENERIC_ALL)) {
678 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
680 SetLastError (ERROR_ACCESS_DENIED);
684 /* Find the current file position, and the file length. If
685 * the file position is greater than the length, write to
686 * extend the file with a hole. If the file position is less
687 * than the length, truncate the file.
690 ret=fstat(fd, &statbuf);
692 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__,
693 handle, strerror(errno));
695 _wapi_set_last_error_from_errno ();
699 pos=lseek(fd, (off_t)0, SEEK_CUR);
701 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p lseek failed: %s", __func__,
702 handle, strerror(errno));
704 _wapi_set_last_error_from_errno ();
708 #ifdef FTRUNCATE_DOESNT_EXTEND
709 off_t size = statbuf.st_size;
710 /* I haven't bothered to write the configure.ac stuff for this
711 * because I don't know if any platform needs it. I'm leaving
712 * this code just in case though
715 /* Extend the file. Use write() here, because some
716 * manuals say that ftruncate() behaviour is undefined
717 * when the file needs extending. The POSIX spec says
718 * that on XSI-conformant systems it extends, so if
719 * every system we care about conforms, then we can
723 ret = write (fd, "", 1);
724 } while (ret == -1 && errno == EINTR &&
725 !_wapi_thread_cur_apc_pending());
728 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p extend write failed: %s", __func__, handle, strerror(errno));
730 _wapi_set_last_error_from_errno ();
734 /* And put the file position back after the write */
735 ret = lseek (fd, pos, SEEK_SET);
737 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p second lseek failed: %s",
738 __func__, handle, strerror(errno));
740 _wapi_set_last_error_from_errno ();
746 /* Native Client has no ftruncate function, even in standalone sel_ldr. */
747 #ifndef __native_client__
748 /* always truncate, because the extend write() adds an extra
749 * byte to the end of the file
752 ret=ftruncate(fd, pos);
754 while (ret==-1 && errno==EINTR && !_wapi_thread_cur_apc_pending());
756 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p ftruncate failed: %s", __func__,
757 handle, strerror(errno));
759 _wapi_set_last_error_from_errno ();
767 static guint32 file_getfilesize(gpointer handle, guint32 *highsize)
769 struct _WapiHandle_file *file_handle;
776 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
777 (gpointer *)&file_handle);
779 g_warning ("%s: error looking up file handle %p", __func__,
781 SetLastError (ERROR_INVALID_HANDLE);
782 return(INVALID_FILE_SIZE);
784 fd = file_handle->fd;
786 if(!(file_handle->fileaccess & GENERIC_READ) &&
787 !(file_handle->fileaccess & GENERIC_WRITE) &&
788 !(file_handle->fileaccess & GENERIC_ALL)) {
789 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ or GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
791 SetLastError (ERROR_ACCESS_DENIED);
792 return(INVALID_FILE_SIZE);
795 /* If the file has a size with the low bits 0xFFFFFFFF the
796 * caller can't tell if this is an error, so clear the error
799 SetLastError (ERROR_SUCCESS);
801 ret = fstat(fd, &statbuf);
803 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__,
804 handle, strerror(errno));
806 _wapi_set_last_error_from_errno ();
807 return(INVALID_FILE_SIZE);
810 /* fstat indicates block devices as zero-length, so go a different path */
812 if (S_ISBLK(statbuf.st_mode)) {
814 if (ioctl(fd, BLKGETSIZE64, &bigsize) < 0) {
815 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p ioctl BLKGETSIZE64 failed: %s",
816 __func__, handle, strerror(errno));
818 _wapi_set_last_error_from_errno ();
819 return(INVALID_FILE_SIZE);
822 size = bigsize & 0xFFFFFFFF;
823 if (highsize != NULL) {
824 *highsize = bigsize>>32;
827 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning block device size %d/%d",
828 __func__, size, *highsize);
834 #ifdef HAVE_LARGE_FILE_SUPPORT
835 size = statbuf.st_size & 0xFFFFFFFF;
836 if (highsize != NULL) {
837 *highsize = statbuf.st_size>>32;
840 if (highsize != NULL) {
841 /* Accurate, but potentially dodgy :-) */
844 size = statbuf.st_size;
847 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning size %d/%d", __func__, size, *highsize);
852 static gboolean file_getfiletime(gpointer handle, WapiFileTime *create_time,
853 WapiFileTime *last_access,
854 WapiFileTime *last_write)
856 struct _WapiHandle_file *file_handle;
859 guint64 create_ticks, access_ticks, write_ticks;
862 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
863 (gpointer *)&file_handle);
865 g_warning ("%s: error looking up file handle %p", __func__,
867 SetLastError (ERROR_INVALID_HANDLE);
870 fd = file_handle->fd;
872 if(!(file_handle->fileaccess & GENERIC_READ) &&
873 !(file_handle->fileaccess & GENERIC_ALL)) {
874 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
875 __func__, handle, file_handle->fileaccess);
877 SetLastError (ERROR_ACCESS_DENIED);
881 ret=fstat(fd, &statbuf);
883 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__, handle,
886 _wapi_set_last_error_from_errno ();
890 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: atime: %ld ctime: %ld mtime: %ld", __func__,
891 statbuf.st_atime, statbuf.st_ctime,
894 /* Try and guess a meaningful create time by using the older
897 /* The magic constant comes from msdn documentation
898 * "Converting a time_t Value to a File Time"
900 if(statbuf.st_atime < statbuf.st_ctime) {
901 create_ticks=((guint64)statbuf.st_atime*10000000)
902 + 116444736000000000ULL;
904 create_ticks=((guint64)statbuf.st_ctime*10000000)
905 + 116444736000000000ULL;
908 access_ticks=((guint64)statbuf.st_atime*10000000)+116444736000000000ULL;
909 write_ticks=((guint64)statbuf.st_mtime*10000000)+116444736000000000ULL;
911 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: aticks: %llu cticks: %llu wticks: %llu", __func__,
912 access_ticks, create_ticks, write_ticks);
914 if(create_time!=NULL) {
915 create_time->dwLowDateTime = create_ticks & 0xFFFFFFFF;
916 create_time->dwHighDateTime = create_ticks >> 32;
919 if(last_access!=NULL) {
920 last_access->dwLowDateTime = access_ticks & 0xFFFFFFFF;
921 last_access->dwHighDateTime = access_ticks >> 32;
924 if(last_write!=NULL) {
925 last_write->dwLowDateTime = write_ticks & 0xFFFFFFFF;
926 last_write->dwHighDateTime = write_ticks >> 32;
932 static gboolean file_setfiletime(gpointer handle,
933 const WapiFileTime *create_time G_GNUC_UNUSED,
934 const WapiFileTime *last_access,
935 const WapiFileTime *last_write)
937 struct _WapiHandle_file *file_handle;
939 struct utimbuf utbuf;
941 guint64 access_ticks, write_ticks;
944 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
945 (gpointer *)&file_handle);
947 g_warning ("%s: error looking up file handle %p", __func__,
949 SetLastError (ERROR_INVALID_HANDLE);
952 fd = file_handle->fd;
954 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
955 !(file_handle->fileaccess & GENERIC_ALL)) {
956 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, file_handle->fileaccess);
958 SetLastError (ERROR_ACCESS_DENIED);
962 if(file_handle->filename == NULL) {
963 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p unknown filename", __func__, handle);
965 SetLastError (ERROR_INVALID_HANDLE);
969 /* Get the current times, so we can put the same times back in
970 * the event that one of the FileTime structs is NULL
972 ret=fstat (fd, &statbuf);
974 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__, handle,
977 SetLastError (ERROR_INVALID_PARAMETER);
981 if(last_access!=NULL) {
982 access_ticks=((guint64)last_access->dwHighDateTime << 32) +
983 last_access->dwLowDateTime;
984 /* This is (time_t)0. We can actually go to INT_MIN,
985 * but this will do for now.
987 if (access_ticks < 116444736000000000ULL) {
988 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set access time too early",
990 SetLastError (ERROR_INVALID_PARAMETER);
994 if (sizeof (utbuf.actime) == 4 && ((access_ticks - 116444736000000000ULL) / 10000000) > INT_MAX) {
995 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set write time that is too big for a 32bits time_t",
997 SetLastError (ERROR_INVALID_PARAMETER);
1001 utbuf.actime=(access_ticks - 116444736000000000ULL) / 10000000;
1003 utbuf.actime=statbuf.st_atime;
1006 if(last_write!=NULL) {
1007 write_ticks=((guint64)last_write->dwHighDateTime << 32) +
1008 last_write->dwLowDateTime;
1009 /* This is (time_t)0. We can actually go to INT_MIN,
1010 * but this will do for now.
1012 if (write_ticks < 116444736000000000ULL) {
1013 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set write time too early",
1015 SetLastError (ERROR_INVALID_PARAMETER);
1018 if (sizeof (utbuf.modtime) == 4 && ((write_ticks - 116444736000000000ULL) / 10000000) > INT_MAX) {
1019 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set write time that is too big for a 32bits time_t",
1021 SetLastError (ERROR_INVALID_PARAMETER);
1025 utbuf.modtime=(write_ticks - 116444736000000000ULL) / 10000000;
1027 utbuf.modtime=statbuf.st_mtime;
1030 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: setting handle %p access %ld write %ld", __func__,
1031 handle, utbuf.actime, utbuf.modtime);
1033 ret = _wapi_utime (file_handle->filename, &utbuf);
1035 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p [%s] utime failed: %s", __func__,
1036 handle, file_handle->filename, strerror(errno));
1038 SetLastError (ERROR_INVALID_PARAMETER);
1045 static void console_close (gpointer handle, gpointer data)
1047 struct _WapiHandle_file *console_handle = (struct _WapiHandle_file *)data;
1048 int fd = console_handle->fd;
1050 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing console handle %p", __func__, handle);
1052 g_free (console_handle->filename);
1055 if (console_handle->share_info)
1056 _wapi_handle_share_release (console_handle->share_info);
1061 static WapiFileType console_getfiletype(void)
1063 return(FILE_TYPE_CHAR);
1066 static gboolean console_read(gpointer handle, gpointer buffer,
1067 guint32 numbytes, guint32 *bytesread,
1068 WapiOverlapped *overlapped G_GNUC_UNUSED)
1070 struct _WapiHandle_file *console_handle;
1074 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_CONSOLE,
1075 (gpointer *)&console_handle);
1077 g_warning ("%s: error looking up console handle %p", __func__,
1079 SetLastError (ERROR_INVALID_HANDLE);
1082 fd = console_handle->fd;
1084 if(bytesread!=NULL) {
1088 if(!(console_handle->fileaccess & GENERIC_READ) &&
1089 !(console_handle->fileaccess & GENERIC_ALL)) {
1090 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
1091 __func__, handle, console_handle->fileaccess);
1093 SetLastError (ERROR_ACCESS_DENIED);
1098 ret=read(fd, buffer, numbytes);
1099 } while (ret==-1 && errno==EINTR && !_wapi_thread_cur_apc_pending());
1102 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__, handle,
1105 _wapi_set_last_error_from_errno ();
1109 if(bytesread!=NULL) {
1116 static gboolean console_write(gpointer handle, gconstpointer buffer,
1117 guint32 numbytes, guint32 *byteswritten,
1118 WapiOverlapped *overlapped G_GNUC_UNUSED)
1120 struct _WapiHandle_file *console_handle;
1124 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_CONSOLE,
1125 (gpointer *)&console_handle);
1127 g_warning ("%s: error looking up console handle %p", __func__,
1129 SetLastError (ERROR_INVALID_HANDLE);
1132 fd = console_handle->fd;
1134 if(byteswritten!=NULL) {
1138 if(!(console_handle->fileaccess & GENERIC_WRITE) &&
1139 !(console_handle->fileaccess & GENERIC_ALL)) {
1140 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, console_handle->fileaccess);
1142 SetLastError (ERROR_ACCESS_DENIED);
1147 ret = write(fd, buffer, numbytes);
1148 } while (ret == -1 && errno == EINTR &&
1149 !_wapi_thread_cur_apc_pending());
1152 if (errno == EINTR) {
1155 _wapi_set_last_error_from_errno ();
1157 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s",
1158 __func__, handle, strerror(errno));
1163 if(byteswritten!=NULL) {
1170 static void pipe_close (gpointer handle, gpointer data)
1172 struct _WapiHandle_file *pipe_handle = (struct _WapiHandle_file*)data;
1173 int fd = pipe_handle->fd;
1175 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing pipe handle %p fd %d", __func__, handle, fd);
1177 /* No filename with pipe handles */
1179 if (pipe_handle->share_info)
1180 _wapi_handle_share_release (pipe_handle->share_info);
1185 static WapiFileType pipe_getfiletype(void)
1187 return(FILE_TYPE_PIPE);
1190 static gboolean pipe_read (gpointer handle, gpointer buffer,
1191 guint32 numbytes, guint32 *bytesread,
1192 WapiOverlapped *overlapped G_GNUC_UNUSED)
1194 struct _WapiHandle_file *pipe_handle;
1198 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_PIPE,
1199 (gpointer *)&pipe_handle);
1201 g_warning ("%s: error looking up pipe handle %p", __func__,
1203 SetLastError (ERROR_INVALID_HANDLE);
1206 fd = pipe_handle->fd;
1208 if(bytesread!=NULL) {
1212 if(!(pipe_handle->fileaccess & GENERIC_READ) &&
1213 !(pipe_handle->fileaccess & GENERIC_ALL)) {
1214 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
1215 __func__, handle, pipe_handle->fileaccess);
1217 SetLastError (ERROR_ACCESS_DENIED);
1221 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: reading up to %d bytes from pipe %p", __func__,
1225 ret=read(fd, buffer, numbytes);
1226 } while (ret==-1 && errno==EINTR && !_wapi_thread_cur_apc_pending());
1229 if (errno == EINTR) {
1232 _wapi_set_last_error_from_errno ();
1234 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__,
1235 handle, strerror(errno));
1241 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read %d bytes from pipe %p", __func__, ret, handle);
1243 if(bytesread!=NULL) {
1250 static gboolean pipe_write(gpointer handle, gconstpointer buffer,
1251 guint32 numbytes, guint32 *byteswritten,
1252 WapiOverlapped *overlapped G_GNUC_UNUSED)
1254 struct _WapiHandle_file *pipe_handle;
1258 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_PIPE,
1259 (gpointer *)&pipe_handle);
1261 g_warning ("%s: error looking up pipe handle %p", __func__,
1263 SetLastError (ERROR_INVALID_HANDLE);
1266 fd = pipe_handle->fd;
1268 if(byteswritten!=NULL) {
1272 if(!(pipe_handle->fileaccess & GENERIC_WRITE) &&
1273 !(pipe_handle->fileaccess & GENERIC_ALL)) {
1274 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_WRITE access: %u", __func__, handle, pipe_handle->fileaccess);
1276 SetLastError (ERROR_ACCESS_DENIED);
1280 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: writing up to %d bytes to pipe %p", __func__, numbytes,
1284 ret = write (fd, buffer, numbytes);
1285 } while (ret == -1 && errno == EINTR &&
1286 !_wapi_thread_cur_apc_pending());
1289 if (errno == EINTR) {
1292 _wapi_set_last_error_from_errno ();
1294 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s", __func__,
1295 handle, strerror(errno));
1300 if(byteswritten!=NULL) {
1307 static int convert_flags(guint32 fileaccess, guint32 createmode)
1311 switch(fileaccess) {
1318 case GENERIC_READ|GENERIC_WRITE:
1322 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unknown access type 0x%x", __func__,
1327 switch(createmode) {
1329 flags|=O_CREAT|O_EXCL;
1332 flags|=O_CREAT|O_TRUNC;
1339 case TRUNCATE_EXISTING:
1343 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unknown create mode 0x%x", __func__,
1352 static mode_t convert_perms(guint32 sharemode)
1356 if(sharemode&FILE_SHARE_READ) {
1359 if(sharemode&FILE_SHARE_WRITE) {
1367 static gboolean share_allows_open (struct stat *statbuf, guint32 sharemode,
1369 struct _WapiFileShare **share_info)
1371 gboolean file_already_shared;
1372 guint32 file_existing_share, file_existing_access;
1374 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);
1376 if (file_already_shared) {
1377 /* The reference to this share info was incremented
1378 * when we looked it up, so be careful to put it back
1379 * if we conclude we can't use this file.
1381 if (file_existing_share == 0) {
1382 /* Quick and easy, no possibility to share */
1383 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Share mode prevents open: requested access: 0x%x, file has sharing = NONE", __func__, fileaccess);
1385 _wapi_handle_share_release (*share_info);
1390 if (((file_existing_share == FILE_SHARE_READ) &&
1391 (fileaccess != GENERIC_READ)) ||
1392 ((file_existing_share == FILE_SHARE_WRITE) &&
1393 (fileaccess != GENERIC_WRITE))) {
1394 /* New access mode doesn't match up */
1395 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Share mode prevents open: requested access: 0x%x, file has sharing: 0x%x", __func__, fileaccess, file_existing_share);
1397 _wapi_handle_share_release (*share_info);
1402 if (((file_existing_access & GENERIC_READ) &&
1403 !(sharemode & FILE_SHARE_READ)) ||
1404 ((file_existing_access & GENERIC_WRITE) &&
1405 !(sharemode & FILE_SHARE_WRITE))) {
1406 /* New share mode doesn't match up */
1407 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Access mode prevents open: requested share: 0x%x, file has access: 0x%x", __func__, sharemode, file_existing_access);
1409 _wapi_handle_share_release (*share_info);
1414 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: New file!", __func__);
1422 share_allows_delete (struct stat *statbuf, struct _WapiFileShare **share_info)
1424 gboolean file_already_shared;
1425 guint32 file_existing_share, file_existing_access;
1427 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);
1429 if (file_already_shared) {
1430 /* The reference to this share info was incremented
1431 * when we looked it up, so be careful to put it back
1432 * if we conclude we can't use this file.
1434 if (file_existing_share == 0) {
1435 /* Quick and easy, no possibility to share */
1436 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Share mode prevents open: requested access: 0x%x, file has sharing = NONE", __func__, (*share_info)->access);
1438 _wapi_handle_share_release (*share_info);
1443 if (!(file_existing_share & FILE_SHARE_DELETE)) {
1444 /* New access mode doesn't match up */
1445 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Share mode prevents open: requested access: 0x%x, file has sharing: 0x%x", __func__, (*share_info)->access, file_existing_share);
1447 _wapi_handle_share_release (*share_info);
1452 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: New file!", __func__);
1457 static gboolean share_check (struct stat *statbuf, guint32 sharemode,
1459 struct _WapiFileShare **share_info, int fd)
1461 if (share_allows_open (statbuf, sharemode, fileaccess,
1462 share_info) == TRUE) {
1466 /* Got a share violation. Double check that the file is still
1467 * open by someone, in case a process crashed while still
1468 * holding a file handle. This will also cope with someone
1469 * using Mono.Posix to close the file. This is cheaper and
1470 * less intrusive to other processes than initiating a handle
1474 _wapi_handle_check_share (*share_info, fd);
1475 if (share_allows_open (statbuf, sharemode, fileaccess,
1476 share_info) == TRUE) {
1480 return(share_allows_open (statbuf, sharemode, fileaccess, share_info));
1485 * @name: a pointer to a NULL-terminated unicode string, that names
1486 * the file or other object to create.
1487 * @fileaccess: specifies the file access mode
1488 * @sharemode: whether the file should be shared. This parameter is
1489 * currently ignored.
1490 * @security: Ignored for now.
1491 * @createmode: specifies whether to create a new file, whether to
1492 * overwrite an existing file, whether to truncate the file, etc.
1493 * @attrs: specifies file attributes and flags. On win32 attributes
1494 * are characteristics of the file, not the handle, and are ignored
1495 * when an existing file is opened. Flags give the library hints on
1496 * how to process a file to optimise performance.
1497 * @template: the handle of an open %GENERIC_READ file that specifies
1498 * attributes to apply to a newly created file, ignoring @attrs.
1499 * Normally this parameter is NULL. This parameter is ignored when an
1500 * existing file is opened.
1502 * Creates a new file handle. This only applies to normal files:
1503 * pipes are handled by CreatePipe(), and console handles are created
1504 * with GetStdHandle().
1506 * Return value: the new handle, or %INVALID_HANDLE_VALUE on error.
1508 gpointer CreateFile(const gunichar2 *name, guint32 fileaccess,
1509 guint32 sharemode, WapiSecurityAttributes *security,
1510 guint32 createmode, guint32 attrs,
1511 gpointer template_ G_GNUC_UNUSED)
1513 struct _WapiHandle_file file_handle = {0};
1515 int flags=convert_flags(fileaccess, createmode);
1516 /*mode_t perms=convert_perms(sharemode);*/
1517 /* we don't use sharemode, because that relates to sharing of
1518 * the file when the file is open and is already handled by
1519 * other code, perms instead are the on-disk permissions and
1520 * this is a sane default.
1525 WapiHandleType handle_type;
1526 struct stat statbuf;
1528 mono_once (&io_ops_once, io_ops_init);
1530 if (attrs & FILE_ATTRIBUTE_TEMPORARY)
1533 if (attrs & FILE_ATTRIBUTE_ENCRYPTED){
1534 SetLastError (ERROR_ENCRYPTION_FAILED);
1535 return INVALID_HANDLE_VALUE;
1539 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1541 SetLastError (ERROR_INVALID_NAME);
1542 return(INVALID_HANDLE_VALUE);
1545 filename = mono_unicode_to_external (name);
1546 if (filename == NULL) {
1547 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
1549 SetLastError (ERROR_INVALID_NAME);
1550 return(INVALID_HANDLE_VALUE);
1553 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Opening %s with share 0x%x and access 0x%x", __func__,
1554 filename, sharemode, fileaccess);
1556 fd = _wapi_open (filename, flags, perms);
1558 /* If we were trying to open a directory with write permissions
1559 * (e.g. O_WRONLY or O_RDWR), this call will fail with
1560 * EISDIR. However, this is a bit bogus because calls to
1561 * manipulate the directory (e.g. SetFileTime) will still work on
1562 * the directory because they use other API calls
1563 * (e.g. utime()). Hence, if we failed with the EISDIR error, try
1564 * to open the directory again without write permission.
1566 if (fd == -1 && errno == EISDIR)
1568 /* Try again but don't try to make it writable */
1569 fd = _wapi_open (filename, flags & ~(O_RDWR|O_WRONLY), perms);
1573 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Error opening file %s: %s", __func__, filename,
1575 _wapi_set_last_path_error_from_errno (NULL, filename);
1578 return(INVALID_HANDLE_VALUE);
1581 if (fd >= _wapi_fd_reserve) {
1582 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: File descriptor is too big", __func__);
1584 SetLastError (ERROR_TOO_MANY_OPEN_FILES);
1589 return(INVALID_HANDLE_VALUE);
1592 ret = fstat (fd, &statbuf);
1594 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fstat error of file %s: %s", __func__,
1595 filename, strerror (errno));
1596 _wapi_set_last_error_from_errno ();
1600 return(INVALID_HANDLE_VALUE);
1602 #ifdef __native_client__
1603 /* Workaround: Native Client currently returns the same fake inode
1604 * for all files, so do a simple hash on the filename so we don't
1605 * use the same share info for each file.
1607 statbuf.st_ino = g_str_hash(filename);
1610 if (share_check (&statbuf, sharemode, fileaccess,
1611 &file_handle.share_info, fd) == FALSE) {
1612 SetLastError (ERROR_SHARING_VIOLATION);
1616 return (INVALID_HANDLE_VALUE);
1618 if (file_handle.share_info == NULL) {
1619 /* No space, so no more files can be opened */
1620 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: No space in the share table", __func__);
1622 SetLastError (ERROR_TOO_MANY_OPEN_FILES);
1626 return(INVALID_HANDLE_VALUE);
1629 file_handle.filename = filename;
1631 if(security!=NULL) {
1632 //file_handle->security_attributes=_wapi_handle_scratch_store (
1633 //security, sizeof(WapiSecurityAttributes));
1636 file_handle.fd = fd;
1637 file_handle.fileaccess=fileaccess;
1638 file_handle.sharemode=sharemode;
1639 file_handle.attrs=attrs;
1641 #ifdef HAVE_POSIX_FADVISE
1642 if (attrs & FILE_FLAG_SEQUENTIAL_SCAN)
1643 posix_fadvise (fd, 0, 0, POSIX_FADV_SEQUENTIAL);
1644 if (attrs & FILE_FLAG_RANDOM_ACCESS)
1645 posix_fadvise (fd, 0, 0, POSIX_FADV_RANDOM);
1649 #define S_ISFIFO(m) ((m & S_IFIFO) != 0)
1651 if (S_ISFIFO (statbuf.st_mode)) {
1652 handle_type = WAPI_HANDLE_PIPE;
1653 /* maintain invariant that pipes have no filename */
1654 file_handle.filename = NULL;
1657 } else if (S_ISCHR (statbuf.st_mode)) {
1658 handle_type = WAPI_HANDLE_CONSOLE;
1660 handle_type = WAPI_HANDLE_FILE;
1663 handle = _wapi_handle_new_fd (handle_type, fd, &file_handle);
1664 if (handle == _WAPI_HANDLE_INVALID) {
1665 g_warning ("%s: error creating file handle", __func__);
1669 SetLastError (ERROR_GEN_FAILURE);
1670 return(INVALID_HANDLE_VALUE);
1673 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: returning handle %p", __func__, handle);
1680 * @name: a pointer to a NULL-terminated unicode string, that names
1681 * the file to be deleted.
1683 * Deletes file @name.
1685 * Return value: %TRUE on success, %FALSE otherwise.
1687 gboolean DeleteFile(const gunichar2 *name)
1691 gboolean ret = FALSE;
1694 struct stat statbuf;
1695 struct _WapiFileShare *shareinfo;
1699 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1701 SetLastError (ERROR_INVALID_NAME);
1705 filename=mono_unicode_to_external(name);
1706 if(filename==NULL) {
1707 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
1709 SetLastError (ERROR_INVALID_NAME);
1713 attrs = GetFileAttributes (name);
1714 if (attrs == INVALID_FILE_ATTRIBUTES) {
1715 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file attributes error", __func__);
1716 /* Error set by GetFileAttributes() */
1722 /* Check to make sure sharing allows us to open the file for
1723 * writing. See bug 323389.
1725 * Do the checks that don't need an open file descriptor, for
1726 * simplicity's sake. If we really have to do the full checks
1727 * then we can implement that later.
1729 if (_wapi_stat (filename, &statbuf) < 0) {
1730 _wapi_set_last_path_error_from_errno (NULL, filename);
1735 if (share_allows_open (&statbuf, 0, GENERIC_WRITE,
1736 &shareinfo) == FALSE) {
1737 SetLastError (ERROR_SHARING_VIOLATION);
1742 _wapi_handle_share_release (shareinfo);
1745 retval = _wapi_unlink (filename);
1748 _wapi_set_last_path_error_from_errno (NULL, filename);
1760 * @name: a pointer to a NULL-terminated unicode string, that names
1761 * the file to be moved.
1762 * @dest_name: a pointer to a NULL-terminated unicode string, that is the
1763 * new name for the file.
1765 * Renames file @name to @dest_name.
1766 * MoveFile sets ERROR_ALREADY_EXISTS if the destination exists, except
1767 * when it is the same file as the source. In that case it silently succeeds.
1769 * Return value: %TRUE on success, %FALSE otherwise.
1771 gboolean MoveFile (const gunichar2 *name, const gunichar2 *dest_name)
1773 gchar *utf8_name, *utf8_dest_name;
1774 int result, errno_copy;
1775 struct stat stat_src, stat_dest;
1776 gboolean ret = FALSE;
1777 struct _WapiFileShare *shareinfo;
1780 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1782 SetLastError (ERROR_INVALID_NAME);
1786 utf8_name = mono_unicode_to_external (name);
1787 if (utf8_name == NULL) {
1788 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
1790 SetLastError (ERROR_INVALID_NAME);
1794 if(dest_name==NULL) {
1795 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1798 SetLastError (ERROR_INVALID_NAME);
1802 utf8_dest_name = mono_unicode_to_external (dest_name);
1803 if (utf8_dest_name == NULL) {
1804 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
1807 SetLastError (ERROR_INVALID_NAME);
1812 * In C# land we check for the existence of src, but not for dest.
1813 * We check it here and return the failure if dest exists and is not
1814 * the same file as src.
1816 if (_wapi_stat (utf8_name, &stat_src) < 0) {
1817 if (errno != ENOENT || _wapi_lstat (utf8_name, &stat_src) < 0) {
1818 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
1820 g_free (utf8_dest_name);
1825 if (!_wapi_stat (utf8_dest_name, &stat_dest)) {
1826 if (stat_dest.st_dev != stat_src.st_dev ||
1827 stat_dest.st_ino != stat_src.st_ino) {
1829 g_free (utf8_dest_name);
1830 SetLastError (ERROR_ALREADY_EXISTS);
1835 /* Check to make that we have delete sharing permission.
1836 * See https://bugzilla.xamarin.com/show_bug.cgi?id=17009
1838 * Do the checks that don't need an open file descriptor, for
1839 * simplicity's sake. If we really have to do the full checks
1840 * then we can implement that later.
1842 if (share_allows_delete (&stat_src, &shareinfo) == FALSE) {
1843 SetLastError (ERROR_SHARING_VIOLATION);
1847 _wapi_handle_share_release (shareinfo);
1849 result = _wapi_rename (utf8_name, utf8_dest_name);
1853 switch(errno_copy) {
1855 SetLastError (ERROR_ALREADY_EXISTS);
1859 /* Ignore here, it is dealt with below */
1863 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
1868 g_free (utf8_dest_name);
1870 if (result != 0 && errno_copy == EXDEV) {
1871 if (S_ISDIR (stat_src.st_mode)) {
1872 SetLastError (ERROR_NOT_SAME_DEVICE);
1875 /* Try a copy to the new location, and delete the source */
1876 if (CopyFile (name, dest_name, TRUE)==FALSE) {
1877 /* CopyFile will set the error */
1881 return(DeleteFile (name));
1892 write_file (int src_fd, int dest_fd, struct stat *st_src, gboolean report_errors)
1896 int buf_size = st_src->st_blksize;
1898 buf_size = buf_size < 8192 ? 8192 : (buf_size > 65536 ? 65536 : buf_size);
1899 buf = (char *) malloc (buf_size);
1902 remain = read (src_fd, buf, buf_size);
1904 if (errno == EINTR && !_wapi_thread_cur_apc_pending ())
1908 _wapi_set_last_error_from_errno ();
1918 while (remain > 0) {
1919 if ((n = write (dest_fd, wbuf, remain)) < 0) {
1920 if (errno == EINTR && !_wapi_thread_cur_apc_pending ())
1924 _wapi_set_last_error_from_errno ();
1925 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write failed.", __func__);
1941 * @name: a pointer to a NULL-terminated unicode string, that names
1942 * the file to be copied.
1943 * @dest_name: a pointer to a NULL-terminated unicode string, that is the
1944 * new name for the file.
1945 * @fail_if_exists: if TRUE and dest_name exists, the copy will fail.
1947 * Copies file @name to @dest_name
1949 * Return value: %TRUE on success, %FALSE otherwise.
1951 gboolean CopyFile (const gunichar2 *name, const gunichar2 *dest_name,
1952 gboolean fail_if_exists)
1954 gchar *utf8_src, *utf8_dest;
1955 int src_fd, dest_fd;
1956 struct stat st, dest_st;
1957 struct utimbuf dest_time;
1958 gboolean ret = TRUE;
1962 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1964 SetLastError (ERROR_INVALID_NAME);
1968 utf8_src = mono_unicode_to_external (name);
1969 if (utf8_src == NULL) {
1970 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of source returned NULL",
1973 SetLastError (ERROR_INVALID_PARAMETER);
1977 if(dest_name==NULL) {
1978 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: dest is NULL", __func__);
1981 SetLastError (ERROR_INVALID_NAME);
1985 utf8_dest = mono_unicode_to_external (dest_name);
1986 if (utf8_dest == NULL) {
1987 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of dest returned NULL",
1990 SetLastError (ERROR_INVALID_PARAMETER);
1997 src_fd = _wapi_open (utf8_src, O_RDONLY, 0);
1999 _wapi_set_last_path_error_from_errno (NULL, utf8_src);
2007 if (fstat (src_fd, &st) < 0) {
2008 _wapi_set_last_error_from_errno ();
2017 /* Before trying to open/create the dest, we need to report a 'file busy'
2018 * error if src and dest are actually the same file. We do the check here to take
2019 * advantage of the IOMAP capability */
2020 if (!_wapi_stat (utf8_dest, &dest_st) && st.st_dev == dest_st.st_dev &&
2021 st.st_ino == dest_st.st_ino) {
2027 SetLastError (ERROR_SHARING_VIOLATION);
2031 if (fail_if_exists) {
2032 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_EXCL, st.st_mode);
2034 /* FIXME: it kinda sucks that this code path potentially scans
2035 * the directory twice due to the weird SetLastError()
2037 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_TRUNC, st.st_mode);
2039 /* The file does not exist, try creating it */
2040 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_TRUNC, st.st_mode);
2042 /* Apparently this error is set if we
2043 * overwrite the dest file
2045 SetLastError (ERROR_ALREADY_EXISTS);
2049 _wapi_set_last_error_from_errno ();
2058 if (!write_file (src_fd, dest_fd, &st, TRUE))
2064 dest_time.modtime = st.st_mtime;
2065 dest_time.actime = st.st_atime;
2066 ret_utime = utime (utf8_dest, &dest_time);
2067 if (ret_utime == -1)
2068 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file [%s] utime failed: %s", __func__, utf8_dest, strerror(errno));
2077 convert_arg_to_utf8 (const gunichar2 *arg, const gchar *arg_name)
2082 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: %s is NULL", __func__, arg_name);
2083 SetLastError (ERROR_INVALID_NAME);
2087 utf8_ret = mono_unicode_to_external (arg);
2088 if (utf8_ret == NULL) {
2089 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of %s returned NULL",
2090 __func__, arg_name);
2091 SetLastError (ERROR_INVALID_PARAMETER);
2099 ReplaceFile (const gunichar2 *replacedFileName, const gunichar2 *replacementFileName,
2100 const gunichar2 *backupFileName, guint32 replaceFlags,
2101 gpointer exclude, gpointer reserved)
2103 int result, backup_fd = -1,replaced_fd = -1;
2104 gchar *utf8_replacedFileName, *utf8_replacementFileName = NULL, *utf8_backupFileName = NULL;
2105 struct stat stBackup;
2106 gboolean ret = FALSE;
2108 if (!(utf8_replacedFileName = convert_arg_to_utf8 (replacedFileName, "replacedFileName")))
2110 if (!(utf8_replacementFileName = convert_arg_to_utf8 (replacementFileName, "replacementFileName")))
2111 goto replace_cleanup;
2112 if (backupFileName != NULL) {
2113 if (!(utf8_backupFileName = convert_arg_to_utf8 (backupFileName, "backupFileName")))
2114 goto replace_cleanup;
2117 if (utf8_backupFileName) {
2118 // Open the backup file for read so we can restore the file if an error occurs.
2119 backup_fd = _wapi_open (utf8_backupFileName, O_RDONLY, 0);
2120 result = _wapi_rename (utf8_replacedFileName, utf8_backupFileName);
2122 goto replace_cleanup;
2125 result = _wapi_rename (utf8_replacementFileName, utf8_replacedFileName);
2127 _wapi_set_last_path_error_from_errno (NULL, utf8_replacementFileName);
2128 _wapi_rename (utf8_backupFileName, utf8_replacedFileName);
2129 if (backup_fd != -1 && !fstat (backup_fd, &stBackup)) {
2130 replaced_fd = _wapi_open (utf8_backupFileName, O_WRONLY | O_CREAT | O_TRUNC,
2133 if (replaced_fd == -1)
2134 goto replace_cleanup;
2136 write_file (backup_fd, replaced_fd, &stBackup, FALSE);
2139 goto replace_cleanup;
2145 g_free (utf8_replacedFileName);
2146 g_free (utf8_replacementFileName);
2147 g_free (utf8_backupFileName);
2148 if (backup_fd != -1)
2150 if (replaced_fd != -1)
2151 close (replaced_fd);
2157 * @stdhandle: specifies the file descriptor
2159 * Returns a handle for stdin, stdout, or stderr. Always returns the
2160 * same handle for the same @stdhandle.
2162 * Return value: the handle, or %INVALID_HANDLE_VALUE on error
2165 static mono_mutex_t stdhandle_mutex;
2167 gpointer GetStdHandle(WapiStdHandle stdhandle)
2169 struct _WapiHandle_file *file_handle;
2176 case STD_INPUT_HANDLE:
2181 case STD_OUTPUT_HANDLE:
2186 case STD_ERROR_HANDLE:
2192 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unknown standard handle type", __func__);
2194 SetLastError (ERROR_INVALID_PARAMETER);
2195 return(INVALID_HANDLE_VALUE);
2198 handle = GINT_TO_POINTER (fd);
2200 thr_ret = mono_os_mutex_lock (&stdhandle_mutex);
2201 g_assert (thr_ret == 0);
2203 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_CONSOLE,
2204 (gpointer *)&file_handle);
2206 /* Need to create this console handle */
2207 handle = _wapi_stdhandle_create (fd, name);
2209 if (handle == INVALID_HANDLE_VALUE) {
2210 SetLastError (ERROR_NO_MORE_FILES);
2214 /* Add a reference to this handle */
2215 _wapi_handle_ref (handle);
2219 thr_ret = mono_os_mutex_unlock (&stdhandle_mutex);
2220 g_assert (thr_ret == 0);
2227 * @handle: The file handle to read from. The handle must have
2228 * %GENERIC_READ access.
2229 * @buffer: The buffer to store read data in
2230 * @numbytes: The maximum number of bytes to read
2231 * @bytesread: The actual number of bytes read is stored here. This
2232 * value can be zero if the handle is positioned at the end of the
2234 * @overlapped: points to a required %WapiOverlapped structure if
2235 * @handle has the %FILE_FLAG_OVERLAPPED option set, should be NULL
2238 * If @handle does not have the %FILE_FLAG_OVERLAPPED option set, this
2239 * function reads up to @numbytes bytes from the file from the current
2240 * file position, and stores them in @buffer. If there are not enough
2241 * bytes left in the file, just the amount available will be read.
2242 * The actual number of bytes read is stored in @bytesread.
2244 * If @handle has the %FILE_FLAG_OVERLAPPED option set, the current
2245 * file position is ignored and the read position is taken from data
2246 * in the @overlapped structure.
2248 * Return value: %TRUE if the read succeeds (even if no bytes were
2249 * read due to an attempt to read past the end of the file), %FALSE on
2252 gboolean ReadFile(gpointer handle, gpointer buffer, guint32 numbytes,
2253 guint32 *bytesread, WapiOverlapped *overlapped)
2255 WapiHandleType type;
2257 type = _wapi_handle_type (handle);
2259 if(io_ops[type].readfile==NULL) {
2260 SetLastError (ERROR_INVALID_HANDLE);
2264 return(io_ops[type].readfile (handle, buffer, numbytes, bytesread,
2270 * @handle: The file handle to write to. The handle must have
2271 * %GENERIC_WRITE access.
2272 * @buffer: The buffer to read data from.
2273 * @numbytes: The maximum number of bytes to write.
2274 * @byteswritten: The actual number of bytes written is stored here.
2275 * If the handle is positioned at the file end, the length of the file
2276 * is extended. This parameter may be %NULL.
2277 * @overlapped: points to a required %WapiOverlapped structure if
2278 * @handle has the %FILE_FLAG_OVERLAPPED option set, should be NULL
2281 * If @handle does not have the %FILE_FLAG_OVERLAPPED option set, this
2282 * function writes up to @numbytes bytes from @buffer to the file at
2283 * the current file position. If @handle is positioned at the end of
2284 * the file, the file is extended. The actual number of bytes written
2285 * is stored in @byteswritten.
2287 * If @handle has the %FILE_FLAG_OVERLAPPED option set, the current
2288 * file position is ignored and the write position is taken from data
2289 * in the @overlapped structure.
2291 * Return value: %TRUE if the write succeeds, %FALSE on error.
2293 gboolean WriteFile(gpointer handle, gconstpointer buffer, guint32 numbytes,
2294 guint32 *byteswritten, WapiOverlapped *overlapped)
2296 WapiHandleType type;
2298 type = _wapi_handle_type (handle);
2300 if(io_ops[type].writefile==NULL) {
2301 SetLastError (ERROR_INVALID_HANDLE);
2305 return(io_ops[type].writefile (handle, buffer, numbytes, byteswritten,
2311 * @handle: Handle to open file. The handle must have
2312 * %GENERIC_WRITE access.
2314 * Flushes buffers of the file and causes all unwritten data to
2317 * Return value: %TRUE on success, %FALSE otherwise.
2319 gboolean FlushFileBuffers(gpointer handle)
2321 WapiHandleType type;
2323 type = _wapi_handle_type (handle);
2325 if(io_ops[type].flushfile==NULL) {
2326 SetLastError (ERROR_INVALID_HANDLE);
2330 return(io_ops[type].flushfile (handle));
2335 * @handle: The file handle to set. The handle must have
2336 * %GENERIC_WRITE access.
2338 * Moves the end-of-file position to the current position of the file
2339 * pointer. This function is used to truncate or extend a file.
2341 * Return value: %TRUE on success, %FALSE otherwise.
2343 gboolean SetEndOfFile(gpointer handle)
2345 WapiHandleType type;
2347 type = _wapi_handle_type (handle);
2349 if (io_ops[type].setendoffile == NULL) {
2350 SetLastError (ERROR_INVALID_HANDLE);
2354 return(io_ops[type].setendoffile (handle));
2359 * @handle: The file handle to set. The handle must have
2360 * %GENERIC_READ or %GENERIC_WRITE access.
2361 * @movedistance: Low 32 bits of a signed value that specifies the
2362 * number of bytes to move the file pointer.
2363 * @highmovedistance: Pointer to the high 32 bits of a signed value
2364 * that specifies the number of bytes to move the file pointer, or
2366 * @method: The starting point for the file pointer move.
2368 * Sets the file pointer of an open file.
2370 * The distance to move the file pointer is calculated from
2371 * @movedistance and @highmovedistance: If @highmovedistance is %NULL,
2372 * @movedistance is the 32-bit signed value; otherwise, @movedistance
2373 * is the low 32 bits and @highmovedistance a pointer to the high 32
2374 * bits of a 64 bit signed value. A positive distance moves the file
2375 * pointer forward from the position specified by @method; a negative
2376 * distance moves the file pointer backward.
2378 * If the library is compiled without large file support,
2379 * @highmovedistance is ignored and its value is set to zero on a
2380 * successful return.
2382 * Return value: On success, the low 32 bits of the new file pointer.
2383 * If @highmovedistance is not %NULL, the high 32 bits of the new file
2384 * pointer are stored there. On failure, %INVALID_SET_FILE_POINTER.
2386 guint32 SetFilePointer(gpointer handle, gint32 movedistance,
2387 gint32 *highmovedistance, WapiSeekMethod method)
2389 WapiHandleType type;
2391 type = _wapi_handle_type (handle);
2393 if (io_ops[type].seek == NULL) {
2394 SetLastError (ERROR_INVALID_HANDLE);
2395 return(INVALID_SET_FILE_POINTER);
2398 return(io_ops[type].seek (handle, movedistance, highmovedistance,
2404 * @handle: The file handle to test.
2406 * Finds the type of file @handle.
2408 * Return value: %FILE_TYPE_UNKNOWN - the type of the file @handle is
2409 * unknown. %FILE_TYPE_DISK - @handle is a disk file.
2410 * %FILE_TYPE_CHAR - @handle is a character device, such as a console.
2411 * %FILE_TYPE_PIPE - @handle is a named or anonymous pipe.
2413 WapiFileType GetFileType(gpointer handle)
2415 WapiHandleType type;
2417 if (!_WAPI_PRIVATE_HAVE_SLOT (handle)) {
2418 SetLastError (ERROR_INVALID_HANDLE);
2419 return(FILE_TYPE_UNKNOWN);
2422 type = _wapi_handle_type (handle);
2424 if (io_ops[type].getfiletype == NULL) {
2425 SetLastError (ERROR_INVALID_HANDLE);
2426 return(FILE_TYPE_UNKNOWN);
2429 return(io_ops[type].getfiletype ());
2434 * @handle: The file handle to query. The handle must have
2435 * %GENERIC_READ or %GENERIC_WRITE access.
2436 * @highsize: If non-%NULL, the high 32 bits of the file size are
2439 * Retrieves the size of the file @handle.
2441 * If the library is compiled without large file support, @highsize
2442 * has its value set to zero on a successful return.
2444 * Return value: On success, the low 32 bits of the file size. If
2445 * @highsize is non-%NULL then the high 32 bits of the file size are
2446 * stored here. On failure %INVALID_FILE_SIZE is returned.
2448 guint32 GetFileSize(gpointer handle, guint32 *highsize)
2450 WapiHandleType type;
2452 type = _wapi_handle_type (handle);
2454 if (io_ops[type].getfilesize == NULL) {
2455 SetLastError (ERROR_INVALID_HANDLE);
2456 return(INVALID_FILE_SIZE);
2459 return(io_ops[type].getfilesize (handle, highsize));
2464 * @handle: The file handle to query. The handle must have
2465 * %GENERIC_READ access.
2466 * @create_time: Points to a %WapiFileTime structure to receive the
2467 * number of ticks since the epoch that file was created. May be
2469 * @last_access: Points to a %WapiFileTime structure to receive the
2470 * number of ticks since the epoch when file was last accessed. May be
2472 * @last_write: Points to a %WapiFileTime structure to receive the
2473 * number of ticks since the epoch when file was last written to. May
2476 * Finds the number of ticks since the epoch that the file referenced
2477 * by @handle was created, last accessed and last modified. A tick is
2478 * a 100 nanosecond interval. The epoch is Midnight, January 1 1601
2481 * Create time isn't recorded on POSIX file systems or reported by
2482 * stat(2), so that time is guessed by returning the oldest of the
2485 * Return value: %TRUE on success, %FALSE otherwise.
2487 gboolean GetFileTime(gpointer handle, WapiFileTime *create_time,
2488 WapiFileTime *last_access, WapiFileTime *last_write)
2490 WapiHandleType type;
2492 type = _wapi_handle_type (handle);
2494 if (io_ops[type].getfiletime == NULL) {
2495 SetLastError (ERROR_INVALID_HANDLE);
2499 return(io_ops[type].getfiletime (handle, create_time, last_access,
2505 * @handle: The file handle to set. The handle must have
2506 * %GENERIC_WRITE access.
2507 * @create_time: Points to a %WapiFileTime structure that contains the
2508 * number of ticks since the epoch that the file was created. May be
2510 * @last_access: Points to a %WapiFileTime structure that contains the
2511 * number of ticks since the epoch when the file was last accessed.
2513 * @last_write: Points to a %WapiFileTime structure that contains the
2514 * number of ticks since the epoch when the file was last written to.
2517 * Sets the number of ticks since the epoch that the file referenced
2518 * by @handle was created, last accessed or last modified. A tick is
2519 * a 100 nanosecond interval. The epoch is Midnight, January 1 1601
2522 * Create time isn't recorded on POSIX file systems, and is ignored.
2524 * Return value: %TRUE on success, %FALSE otherwise.
2526 gboolean SetFileTime(gpointer handle, const WapiFileTime *create_time,
2527 const WapiFileTime *last_access,
2528 const WapiFileTime *last_write)
2530 WapiHandleType type;
2532 type = _wapi_handle_type (handle);
2534 if (io_ops[type].setfiletime == NULL) {
2535 SetLastError (ERROR_INVALID_HANDLE);
2539 return(io_ops[type].setfiletime (handle, create_time, last_access,
2543 /* A tick is a 100-nanosecond interval. File time epoch is Midnight,
2544 * January 1 1601 GMT
2547 #define TICKS_PER_MILLISECOND 10000L
2548 #define TICKS_PER_SECOND 10000000L
2549 #define TICKS_PER_MINUTE 600000000L
2550 #define TICKS_PER_HOUR 36000000000LL
2551 #define TICKS_PER_DAY 864000000000LL
2553 #define isleap(y) ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0))
2555 static const guint16 mon_yday[2][13]={
2556 {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
2557 {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366},
2561 * FileTimeToSystemTime:
2562 * @file_time: Points to a %WapiFileTime structure that contains the
2563 * number of ticks to convert.
2564 * @system_time: Points to a %WapiSystemTime structure to receive the
2567 * Converts a tick count into broken-out time values.
2569 * Return value: %TRUE on success, %FALSE otherwise.
2571 gboolean FileTimeToSystemTime(const WapiFileTime *file_time,
2572 WapiSystemTime *system_time)
2574 gint64 file_ticks, totaldays, rem, y;
2577 if(system_time==NULL) {
2578 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: system_time NULL", __func__);
2580 SetLastError (ERROR_INVALID_PARAMETER);
2584 file_ticks=((gint64)file_time->dwHighDateTime << 32) +
2585 file_time->dwLowDateTime;
2587 /* Really compares if file_ticks>=0x8000000000000000
2588 * (LLONG_MAX+1) but we're working with a signed value for the
2589 * year and day calculation to work later
2592 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file_time too big", __func__);
2594 SetLastError (ERROR_INVALID_PARAMETER);
2598 totaldays=(file_ticks / TICKS_PER_DAY);
2599 rem = file_ticks % TICKS_PER_DAY;
2600 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld rem: %lld", __func__, totaldays, rem);
2602 system_time->wHour=rem/TICKS_PER_HOUR;
2603 rem %= TICKS_PER_HOUR;
2604 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Hour: %d rem: %lld", __func__, system_time->wHour, rem);
2606 system_time->wMinute = rem / TICKS_PER_MINUTE;
2607 rem %= TICKS_PER_MINUTE;
2608 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Minute: %d rem: %lld", __func__, system_time->wMinute,
2611 system_time->wSecond = rem / TICKS_PER_SECOND;
2612 rem %= TICKS_PER_SECOND;
2613 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Second: %d rem: %lld", __func__, system_time->wSecond,
2616 system_time->wMilliseconds = rem / TICKS_PER_MILLISECOND;
2617 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Milliseconds: %d", __func__,
2618 system_time->wMilliseconds);
2620 /* January 1, 1601 was a Monday, according to Emacs calendar */
2621 system_time->wDayOfWeek = ((1 + totaldays) % 7) + 1;
2622 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Day of week: %d", __func__, system_time->wDayOfWeek);
2624 /* This algorithm to find year and month given days from epoch
2629 #define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
2630 #define LEAPS_THRU_END_OF(y) (DIV(y, 4) - DIV (y, 100) + DIV (y, 400))
2632 while(totaldays < 0 || totaldays >= (isleap(y)?366:365)) {
2633 /* Guess a corrected year, assuming 365 days per year */
2634 gint64 yg = y + totaldays / 365 - (totaldays % 365 < 0);
2635 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld yg: %lld y: %lld", __func__,
2638 g_message("%s: LEAPS(yg): %lld LEAPS(y): %lld", __func__,
2639 LEAPS_THRU_END_OF(yg-1), LEAPS_THRU_END_OF(y-1));
2641 /* Adjust days and y to match the guessed year. */
2642 totaldays -= ((yg - y) * 365
2643 + LEAPS_THRU_END_OF (yg - 1)
2644 - LEAPS_THRU_END_OF (y - 1));
2645 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld", __func__, totaldays);
2647 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: y: %lld", __func__, y);
2650 system_time->wYear = y;
2651 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Year: %d", __func__, system_time->wYear);
2653 ip = mon_yday[isleap(y)];
2655 for(y=11; totaldays < ip[y]; --y) {
2659 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld", __func__, totaldays);
2661 system_time->wMonth = y + 1;
2662 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Month: %d", __func__, system_time->wMonth);
2664 system_time->wDay = totaldays + 1;
2665 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Day: %d", __func__, system_time->wDay);
2670 gpointer FindFirstFile (const gunichar2 *pattern, WapiFindData *find_data)
2672 struct _WapiHandle_find find_handle = {0};
2674 gchar *utf8_pattern = NULL, *dir_part, *entry_part;
2677 if (pattern == NULL) {
2678 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: pattern is NULL", __func__);
2680 SetLastError (ERROR_PATH_NOT_FOUND);
2681 return(INVALID_HANDLE_VALUE);
2684 utf8_pattern = mono_unicode_to_external (pattern);
2685 if (utf8_pattern == NULL) {
2686 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
2688 SetLastError (ERROR_INVALID_NAME);
2689 return(INVALID_HANDLE_VALUE);
2692 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: looking for [%s]", __func__, utf8_pattern);
2694 /* Figure out which bit of the pattern is the directory */
2695 dir_part = _wapi_dirname (utf8_pattern);
2696 entry_part = _wapi_basename (utf8_pattern);
2699 /* Don't do this check for now, it breaks if directories
2700 * really do have metachars in their names (see bug 58116).
2701 * FIXME: Figure out a better solution to keep some checks...
2703 if (strchr (dir_part, '*') || strchr (dir_part, '?')) {
2704 SetLastError (ERROR_INVALID_NAME);
2706 g_free (entry_part);
2707 g_free (utf8_pattern);
2708 return(INVALID_HANDLE_VALUE);
2712 /* The pattern can specify a directory or a set of files.
2714 * The pattern can have wildcard characters ? and *, but only
2715 * in the section after the last directory delimiter. (Return
2716 * ERROR_INVALID_NAME if there are wildcards in earlier path
2717 * sections.) "*" has the usual 0-or-more chars meaning. "?"
2718 * means "match one character", "??" seems to mean "match one
2719 * or two characters", "???" seems to mean "match one, two or
2720 * three characters", etc. Windows will also try and match
2721 * the mangled "short name" of files, so 8 character patterns
2722 * with wildcards will show some surprising results.
2724 * All the written documentation I can find says that '?'
2725 * should only match one character, and doesn't mention '??',
2726 * '???' etc. I'm going to assume that the strict behaviour
2727 * (ie '???' means three and only three characters) is the
2728 * correct one, because that lets me use fnmatch(3) rather
2729 * than mess around with regexes.
2732 find_handle.namelist = NULL;
2733 result = _wapi_io_scandir (dir_part, entry_part,
2734 &find_handle.namelist);
2737 /* No files, which windows seems to call
2740 SetLastError (ERROR_FILE_NOT_FOUND);
2741 g_free (utf8_pattern);
2742 g_free (entry_part);
2744 return (INVALID_HANDLE_VALUE);
2748 _wapi_set_last_path_error_from_errno (dir_part, NULL);
2749 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: scandir error: %s", __func__, g_strerror (errno));
2750 g_free (utf8_pattern);
2751 g_free (entry_part);
2753 return (INVALID_HANDLE_VALUE);
2756 g_free (utf8_pattern);
2757 g_free (entry_part);
2759 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Got %d matches", __func__, result);
2761 find_handle.dir_part = dir_part;
2762 find_handle.num = result;
2763 find_handle.count = 0;
2765 handle = _wapi_handle_new (WAPI_HANDLE_FIND, &find_handle);
2766 if (handle == _WAPI_HANDLE_INVALID) {
2767 g_warning ("%s: error creating find handle", __func__);
2769 g_free (entry_part);
2770 g_free (utf8_pattern);
2771 SetLastError (ERROR_GEN_FAILURE);
2773 return(INVALID_HANDLE_VALUE);
2776 if (handle != INVALID_HANDLE_VALUE &&
2777 !FindNextFile (handle, find_data)) {
2779 SetLastError (ERROR_NO_MORE_FILES);
2780 handle = INVALID_HANDLE_VALUE;
2786 gboolean FindNextFile (gpointer handle, WapiFindData *find_data)
2788 struct _WapiHandle_find *find_handle;
2790 struct stat buf, linkbuf;
2793 gchar *utf8_filename, *utf8_basename;
2794 gunichar2 *utf16_basename;
2798 gboolean ret = FALSE;
2800 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FIND,
2801 (gpointer *)&find_handle);
2803 g_warning ("%s: error looking up find handle %p", __func__,
2805 SetLastError (ERROR_INVALID_HANDLE);
2809 thr_ret = _wapi_handle_lock_handle (handle);
2810 g_assert (thr_ret == 0);
2813 if (find_handle->count >= find_handle->num) {
2814 SetLastError (ERROR_NO_MORE_FILES);
2818 /* stat next match */
2820 filename = g_build_filename (find_handle->dir_part, find_handle->namelist[find_handle->count ++], NULL);
2822 result = _wapi_stat (filename, &buf);
2823 if (result == -1 && errno == ENOENT) {
2824 /* Might be a dangling symlink */
2825 result = _wapi_lstat (filename, &buf);
2829 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: stat failed: %s", __func__, filename);
2835 #ifndef __native_client__
2836 result = _wapi_lstat (filename, &linkbuf);
2838 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lstat failed: %s", __func__, filename);
2845 utf8_filename = mono_utf8_from_external (filename);
2846 if (utf8_filename == NULL) {
2847 /* We couldn't turn this filename into utf8 (eg the
2848 * encoding of the name wasn't convertible), so just
2851 g_warning ("%s: Bad encoding for '%s'\nConsider using MONO_EXTERNAL_ENCODINGS\n", __func__, filename);
2858 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Found [%s]", __func__, utf8_filename);
2860 /* fill data block */
2862 if (buf.st_mtime < buf.st_ctime)
2863 create_time = buf.st_mtime;
2865 create_time = buf.st_ctime;
2867 #ifdef __native_client__
2868 find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, NULL);
2870 find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, &linkbuf);
2873 _wapi_time_t_to_filetime (create_time, &find_data->ftCreationTime);
2874 _wapi_time_t_to_filetime (buf.st_atime, &find_data->ftLastAccessTime);
2875 _wapi_time_t_to_filetime (buf.st_mtime, &find_data->ftLastWriteTime);
2877 if (find_data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
2878 find_data->nFileSizeHigh = 0;
2879 find_data->nFileSizeLow = 0;
2881 find_data->nFileSizeHigh = buf.st_size >> 32;
2882 find_data->nFileSizeLow = buf.st_size & 0xFFFFFFFF;
2885 find_data->dwReserved0 = 0;
2886 find_data->dwReserved1 = 0;
2888 utf8_basename = _wapi_basename (utf8_filename);
2889 utf16_basename = g_utf8_to_utf16 (utf8_basename, -1, NULL, &bytes,
2891 if(utf16_basename==NULL) {
2892 g_free (utf8_basename);
2893 g_free (utf8_filename);
2898 /* utf16 is 2 * utf8 */
2901 memset (find_data->cFileName, '\0', (MAX_PATH*2));
2903 /* Truncating a utf16 string like this might leave the last
2906 memcpy (find_data->cFileName, utf16_basename,
2907 bytes<(MAX_PATH*2)-2?bytes:(MAX_PATH*2)-2);
2909 find_data->cAlternateFileName [0] = 0; /* not used */
2911 g_free (utf8_basename);
2912 g_free (utf8_filename);
2913 g_free (utf16_basename);
2916 thr_ret = _wapi_handle_unlock_handle (handle);
2917 g_assert (thr_ret == 0);
2924 * @wapi_handle: the find handle to close.
2926 * Closes find handle @wapi_handle
2928 * Return value: %TRUE on success, %FALSE otherwise.
2930 gboolean FindClose (gpointer handle)
2932 struct _WapiHandle_find *find_handle;
2936 if (handle == NULL) {
2937 SetLastError (ERROR_INVALID_HANDLE);
2941 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FIND,
2942 (gpointer *)&find_handle);
2944 g_warning ("%s: error looking up find handle %p", __func__,
2946 SetLastError (ERROR_INVALID_HANDLE);
2950 thr_ret = _wapi_handle_lock_handle (handle);
2951 g_assert (thr_ret == 0);
2953 g_strfreev (find_handle->namelist);
2954 g_free (find_handle->dir_part);
2956 thr_ret = _wapi_handle_unlock_handle (handle);
2957 g_assert (thr_ret == 0);
2959 _wapi_handle_unref (handle);
2966 * @name: a pointer to a NULL-terminated unicode string, that names
2967 * the directory to be created.
2968 * @security: ignored for now
2970 * Creates directory @name
2972 * Return value: %TRUE on success, %FALSE otherwise.
2974 gboolean CreateDirectory (const gunichar2 *name,
2975 WapiSecurityAttributes *security)
2981 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
2983 SetLastError (ERROR_INVALID_NAME);
2987 utf8_name = mono_unicode_to_external (name);
2988 if (utf8_name == NULL) {
2989 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
2991 SetLastError (ERROR_INVALID_NAME);
2995 result = _wapi_mkdir (utf8_name, 0777);
3002 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3009 * @name: a pointer to a NULL-terminated unicode string, that names
3010 * the directory to be removed.
3012 * Removes directory @name
3014 * Return value: %TRUE on success, %FALSE otherwise.
3016 gboolean RemoveDirectory (const gunichar2 *name)
3022 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3024 SetLastError (ERROR_INVALID_NAME);
3028 utf8_name = mono_unicode_to_external (name);
3029 if (utf8_name == NULL) {
3030 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3032 SetLastError (ERROR_INVALID_NAME);
3036 result = _wapi_rmdir (utf8_name);
3038 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3049 * GetFileAttributes:
3050 * @name: a pointer to a NULL-terminated unicode filename.
3052 * Gets the attributes for @name;
3054 * Return value: %INVALID_FILE_ATTRIBUTES on failure
3056 guint32 GetFileAttributes (const gunichar2 *name)
3059 struct stat buf, linkbuf;
3064 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3066 SetLastError (ERROR_INVALID_NAME);
3070 utf8_name = mono_unicode_to_external (name);
3071 if (utf8_name == NULL) {
3072 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3074 SetLastError (ERROR_INVALID_PARAMETER);
3075 return (INVALID_FILE_ATTRIBUTES);
3078 result = _wapi_stat (utf8_name, &buf);
3079 if (result == -1 && errno == ENOENT) {
3080 /* Might be a dangling symlink... */
3081 result = _wapi_lstat (utf8_name, &buf);
3085 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3087 return (INVALID_FILE_ATTRIBUTES);
3090 #ifndef __native_client__
3091 result = _wapi_lstat (utf8_name, &linkbuf);
3093 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3095 return (INVALID_FILE_ATTRIBUTES);
3099 #ifdef __native_client__
3100 ret = _wapi_stat_to_file_attributes (utf8_name, &buf, NULL);
3102 ret = _wapi_stat_to_file_attributes (utf8_name, &buf, &linkbuf);
3111 * GetFileAttributesEx:
3112 * @name: a pointer to a NULL-terminated unicode filename.
3113 * @level: must be GetFileExInfoStandard
3114 * @info: pointer to a WapiFileAttributesData structure
3116 * Gets attributes, size and filetimes for @name;
3118 * Return value: %TRUE on success, %FALSE on failure
3120 gboolean GetFileAttributesEx (const gunichar2 *name, WapiGetFileExInfoLevels level, gpointer info)
3123 WapiFileAttributesData *data;
3125 struct stat buf, linkbuf;
3129 if (level != GetFileExInfoStandard) {
3130 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: info level %d not supported.", __func__,
3133 SetLastError (ERROR_INVALID_PARAMETER);
3138 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3140 SetLastError (ERROR_INVALID_NAME);
3144 utf8_name = mono_unicode_to_external (name);
3145 if (utf8_name == NULL) {
3146 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3148 SetLastError (ERROR_INVALID_PARAMETER);
3152 result = _wapi_stat (utf8_name, &buf);
3153 if (result == -1 && errno == ENOENT) {
3154 /* Might be a dangling symlink... */
3155 result = _wapi_lstat (utf8_name, &buf);
3159 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3164 result = _wapi_lstat (utf8_name, &linkbuf);
3166 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3171 /* fill data block */
3173 data = (WapiFileAttributesData *)info;
3175 if (buf.st_mtime < buf.st_ctime)
3176 create_time = buf.st_mtime;
3178 create_time = buf.st_ctime;
3180 data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_name,
3186 _wapi_time_t_to_filetime (create_time, &data->ftCreationTime);
3187 _wapi_time_t_to_filetime (buf.st_atime, &data->ftLastAccessTime);
3188 _wapi_time_t_to_filetime (buf.st_mtime, &data->ftLastWriteTime);
3190 if (data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
3191 data->nFileSizeHigh = 0;
3192 data->nFileSizeLow = 0;
3195 data->nFileSizeHigh = buf.st_size >> 32;
3196 data->nFileSizeLow = buf.st_size & 0xFFFFFFFF;
3204 * @name: name of file
3205 * @attrs: attributes to set
3207 * Changes the attributes on a named file.
3209 * Return value: %TRUE on success, %FALSE on failure.
3211 extern gboolean SetFileAttributes (const gunichar2 *name, guint32 attrs)
3213 /* FIXME: think of something clever to do on unix */
3219 * Currently we only handle one *internal* case, with a value that is
3220 * not standard: 0x80000000, which means `set executable bit'
3224 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3226 SetLastError (ERROR_INVALID_NAME);
3230 utf8_name = mono_unicode_to_external (name);
3231 if (utf8_name == NULL) {
3232 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3234 SetLastError (ERROR_INVALID_NAME);
3238 result = _wapi_stat (utf8_name, &buf);
3239 if (result == -1 && errno == ENOENT) {
3240 /* Might be a dangling symlink... */
3241 result = _wapi_lstat (utf8_name, &buf);
3245 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3250 /* Contrary to the documentation, ms allows NORMAL to be
3251 * specified along with other attributes, so dont bother to
3252 * catch that case here.
3254 if (attrs & FILE_ATTRIBUTE_READONLY) {
3255 result = _wapi_chmod (utf8_name, buf.st_mode & ~(S_IWUSR | S_IWOTH | S_IWGRP));
3257 result = _wapi_chmod (utf8_name, buf.st_mode | S_IWUSR);
3260 /* Ignore the other attributes for now */
3262 if (attrs & 0x80000000){
3263 mode_t exec_mask = 0;
3265 if ((buf.st_mode & S_IRUSR) != 0)
3266 exec_mask |= S_IXUSR;
3268 if ((buf.st_mode & S_IRGRP) != 0)
3269 exec_mask |= S_IXGRP;
3271 if ((buf.st_mode & S_IROTH) != 0)
3272 exec_mask |= S_IXOTH;
3274 result = chmod (utf8_name, buf.st_mode | exec_mask);
3276 /* Don't bother to reset executable (might need to change this
3286 * GetCurrentDirectory
3287 * @length: size of the buffer
3288 * @buffer: pointer to buffer that recieves path
3290 * Retrieves the current directory for the current process.
3292 * Return value: number of characters in buffer on success, zero on failure
3294 extern guint32 GetCurrentDirectory (guint32 length, gunichar2 *buffer)
3296 gunichar2 *utf16_path;
3300 #ifdef __native_client__
3301 gchar *path = g_get_current_dir ();
3302 if (length < strlen(path) + 1 || path == NULL)
3304 memcpy (buffer, path, strlen(path) + 1);
3306 if (getcwd ((char*)buffer, length) == NULL) {
3307 if (errno == ERANGE) { /*buffer length is not big enough */
3308 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*/
3311 utf16_path = mono_unicode_from_external (path, &bytes);
3312 g_free (utf16_path);
3316 _wapi_set_last_error_from_errno ();
3321 utf16_path = mono_unicode_from_external ((gchar*)buffer, &bytes);
3322 count = (bytes/2)+1;
3323 g_assert (count <= length); /*getcwd must have failed before with ERANGE*/
3325 /* Add the terminator */
3326 memset (buffer, '\0', bytes+2);
3327 memcpy (buffer, utf16_path, bytes);
3329 g_free (utf16_path);
3335 * SetCurrentDirectory
3336 * @path: path to new directory
3338 * Changes the directory path for the current process.
3340 * Return value: %TRUE on success, %FALSE on failure.
3342 extern gboolean SetCurrentDirectory (const gunichar2 *path)
3348 SetLastError (ERROR_INVALID_PARAMETER);
3352 utf8_path = mono_unicode_to_external (path);
3353 if (_wapi_chdir (utf8_path) != 0) {
3354 _wapi_set_last_error_from_errno ();
3364 gboolean CreatePipe (gpointer *readpipe, gpointer *writepipe,
3365 WapiSecurityAttributes *security G_GNUC_UNUSED, guint32 size)
3367 struct _WapiHandle_file pipe_read_handle = {0};
3368 struct _WapiHandle_file pipe_write_handle = {0};
3369 gpointer read_handle;
3370 gpointer write_handle;
3374 mono_once (&io_ops_once, io_ops_init);
3376 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Creating pipe", __func__);
3380 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Error creating pipe: %s", __func__,
3383 _wapi_set_last_error_from_errno ();
3387 if (filedes[0] >= _wapi_fd_reserve ||
3388 filedes[1] >= _wapi_fd_reserve) {
3389 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: File descriptor is too big", __func__);
3391 SetLastError (ERROR_TOO_MANY_OPEN_FILES);
3399 /* filedes[0] is open for reading, filedes[1] for writing */
3401 pipe_read_handle.fd = filedes [0];
3402 pipe_read_handle.fileaccess = GENERIC_READ;
3403 read_handle = _wapi_handle_new_fd (WAPI_HANDLE_PIPE, filedes[0],
3405 if (read_handle == _WAPI_HANDLE_INVALID) {
3406 g_warning ("%s: error creating pipe read handle", __func__);
3409 SetLastError (ERROR_GEN_FAILURE);
3414 pipe_write_handle.fd = filedes [1];
3415 pipe_write_handle.fileaccess = GENERIC_WRITE;
3416 write_handle = _wapi_handle_new_fd (WAPI_HANDLE_PIPE, filedes[1],
3417 &pipe_write_handle);
3418 if (write_handle == _WAPI_HANDLE_INVALID) {
3419 g_warning ("%s: error creating pipe write handle", __func__);
3420 _wapi_handle_unref (read_handle);
3424 SetLastError (ERROR_GEN_FAILURE);
3429 *readpipe = read_handle;
3430 *writepipe = write_handle;
3432 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning pipe: read handle %p, write handle %p",
3433 __func__, read_handle, write_handle);
3438 #ifdef HAVE_GETFSSTAT
3439 /* Darwin has getfsstat */
3440 gint32 GetLogicalDriveStrings (guint32 len, gunichar2 *buf)
3442 struct statfs *stats;
3445 glong length, total = 0;
3447 n = getfsstat (NULL, 0, MNT_NOWAIT);
3450 size = n * sizeof (struct statfs);
3451 stats = (struct statfs *) g_malloc (size);
3454 if (getfsstat (stats, size, MNT_NOWAIT) == -1){
3458 for (i = 0; i < n; i++){
3459 dir = g_utf8_to_utf16 (stats [i].f_mntonname, -1, NULL, &length, NULL);
3460 if (total + length < len){
3461 memcpy (buf + total, dir, sizeof (gunichar2) * length);
3462 buf [total+length] = 0;
3465 total += length + 1;
3474 /* In-place octal sequence replacement */
3476 unescape_octal (gchar *str)
3485 while (*rptr != '\0') {
3486 if (*rptr == '\\') {
3489 c = (*(rptr++) - '0') << 6;
3490 c += (*(rptr++) - '0') << 3;
3491 c += *(rptr++) - '0';
3493 } else if (wptr != rptr) {
3501 static gint32 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf);
3504 #define GET_LOGICAL_DRIVE_STRINGS_BUFFER 512
3505 #define GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER 512
3506 #define GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER 64
3511 guint32 buffer_index;
3512 guint32 mountpoint_index;
3513 guint32 field_number;
3514 guint32 allocated_size;
3515 guint32 fsname_index;
3516 guint32 fstype_index;
3517 gchar mountpoint [GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER + 1];
3518 gchar *mountpoint_allocated;
3519 gchar buffer [GET_LOGICAL_DRIVE_STRINGS_BUFFER];
3520 gchar fsname [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
3521 gchar fstype [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
3524 gboolean check_mount_source;
3525 } LinuxMountInfoParseState;
3527 static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
3528 static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
3529 static void append_to_mountpoint (LinuxMountInfoParseState *state);
3530 static gboolean add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
3532 gint32 GetLogicalDriveStrings (guint32 len, gunichar2 *buf)
3536 LinuxMountInfoParseState state;
3537 gboolean (*parser)(guint32, gunichar2*, LinuxMountInfoParseState*) = NULL;
3539 memset (buf, 0, len * sizeof (gunichar2));
3540 fd = open ("/proc/self/mountinfo", O_RDONLY);
3542 parser = GetLogicalDriveStrings_MountInfo;
3544 fd = open ("/proc/mounts", O_RDONLY);
3546 parser = GetLogicalDriveStrings_Mounts;
3550 ret = GetLogicalDriveStrings_Mtab (len, buf);
3554 memset (&state, 0, sizeof (LinuxMountInfoParseState));
3555 state.field_number = 1;
3556 state.delimiter = ' ';
3558 while ((state.nbytes = read (fd, state.buffer, GET_LOGICAL_DRIVE_STRINGS_BUFFER)) > 0) {
3559 state.buffer_index = 0;
3561 while ((*parser)(len, buf, &state)) {
3562 if (state.buffer [state.buffer_index] == '\n') {
3563 gboolean quit = add_drive_string (len, buf, &state);
3564 state.field_number = 1;
3565 state.buffer_index++;
3566 if (state.mountpoint_allocated) {
3567 g_free (state.mountpoint_allocated);
3568 state.mountpoint_allocated = NULL;
3585 static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
3589 if (state->field_number == 1)
3590 state->check_mount_source = TRUE;
3592 while (state->buffer_index < (guint32)state->nbytes) {
3593 if (state->buffer [state->buffer_index] == state->delimiter) {
3594 state->field_number++;
3595 switch (state->field_number) {
3597 state->mountpoint_index = 0;
3601 if (state->mountpoint_allocated)
3602 state->mountpoint_allocated [state->mountpoint_index] = 0;
3604 state->mountpoint [state->mountpoint_index] = 0;
3608 ptr = (gchar*)memchr (state->buffer + state->buffer_index, '\n', GET_LOGICAL_DRIVE_STRINGS_BUFFER - state->buffer_index);
3610 state->buffer_index = (ptr - (gchar*)state->buffer) - 1;
3612 state->buffer_index = state->nbytes;
3615 state->buffer_index++;
3617 } else if (state->buffer [state->buffer_index] == '\n')
3620 switch (state->field_number) {
3622 if (state->check_mount_source) {
3623 if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
3624 /* We can ignore the rest, it's a device
3626 state->check_mount_source = FALSE;
3627 state->fsname [state->fsname_index++] = '/';
3630 if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3631 state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
3636 append_to_mountpoint (state);
3640 if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3641 state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
3645 state->buffer_index++;
3651 static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
3653 while (state->buffer_index < (guint32)state->nbytes) {
3654 if (state->buffer [state->buffer_index] == state->delimiter) {
3655 state->field_number++;
3656 switch (state->field_number) {
3658 state->mountpoint_index = 0;
3662 if (state->mountpoint_allocated)
3663 state->mountpoint_allocated [state->mountpoint_index] = 0;
3665 state->mountpoint [state->mountpoint_index] = 0;
3669 state->delimiter = '-';
3673 state->delimiter = ' ';
3677 state->check_mount_source = TRUE;
3680 state->buffer_index++;
3682 } else if (state->buffer [state->buffer_index] == '\n')
3685 switch (state->field_number) {
3687 append_to_mountpoint (state);
3691 if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3692 state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
3696 if (state->check_mount_source) {
3697 if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
3698 /* We can ignore the rest, it's a device
3700 state->check_mount_source = FALSE;
3701 state->fsname [state->fsname_index++] = '/';
3704 if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3705 state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
3710 state->buffer_index++;
3717 append_to_mountpoint (LinuxMountInfoParseState *state)
3719 gchar ch = state->buffer [state->buffer_index];
3720 if (state->mountpoint_allocated) {
3721 if (state->mountpoint_index >= state->allocated_size) {
3722 guint32 newsize = (state->allocated_size << 1) + 1;
3723 gchar *newbuf = (gchar *)g_malloc0 (newsize * sizeof (gchar));
3725 memcpy (newbuf, state->mountpoint_allocated, state->mountpoint_index);
3726 g_free (state->mountpoint_allocated);
3727 state->mountpoint_allocated = newbuf;
3728 state->allocated_size = newsize;
3730 state->mountpoint_allocated [state->mountpoint_index++] = ch;
3732 if (state->mountpoint_index >= GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER) {
3733 state->allocated_size = (state->mountpoint_index << 1) + 1;
3734 state->mountpoint_allocated = (gchar *)g_malloc0 (state->allocated_size * sizeof (gchar));
3735 memcpy (state->mountpoint_allocated, state->mountpoint, state->mountpoint_index);
3736 state->mountpoint_allocated [state->mountpoint_index++] = ch;
3738 state->mountpoint [state->mountpoint_index++] = ch;
3743 add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
3745 gboolean quit = FALSE;
3746 gboolean ignore_entry;
3748 if (state->fsname_index == 1 && state->fsname [0] == '/')
3749 ignore_entry = FALSE;
3750 else if (memcmp ("overlay", state->fsname, state->fsname_index) == 0 ||
3751 memcmp ("aufs", state->fstype, state->fstype_index) == 0) {
3752 /* Don't ignore overlayfs and aufs - these might be used on Docker
3753 * (https://bugzilla.xamarin.com/show_bug.cgi?id=31021) */
3754 ignore_entry = FALSE;
3755 } else if (state->fsname_index == 0 || memcmp ("none", state->fsname, state->fsname_index) == 0) {
3756 ignore_entry = TRUE;
3757 } else if (state->fstype_index >= 5 && memcmp ("fuse.", state->fstype, 5) == 0) {
3758 /* Ignore GNOME's gvfs */
3759 if (state->fstype_index == 21 && memcmp ("fuse.gvfs-fuse-daemon", state->fstype, state->fstype_index) == 0)
3760 ignore_entry = TRUE;
3762 ignore_entry = FALSE;
3763 } else if (state->fstype_index == 3 && memcmp ("nfs", state->fstype, state->fstype_index) == 0)
3764 ignore_entry = FALSE;
3766 ignore_entry = TRUE;
3768 if (!ignore_entry) {
3771 gchar *mountpoint = state->mountpoint_allocated ? state->mountpoint_allocated : state->mountpoint;
3773 unescape_octal (mountpoint);
3774 dir = g_utf8_to_utf16 (mountpoint, -1, NULL, &length, NULL);
3775 if (state->total + length + 1 > len) {
3777 state->total = len * 2;
3780 memcpy (buf + state->total, dir, sizeof (gunichar2) * length);
3781 state->total += length;
3785 state->fsname_index = 0;
3786 state->fstype_index = 0;
3792 GetLogicalDriveStrings (guint32 len, gunichar2 *buf)
3794 return GetLogicalDriveStrings_Mtab (len, buf);
3798 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf)
3801 gunichar2 *ptr, *dir;
3802 glong length, total = 0;
3806 memset (buf, 0, sizeof (gunichar2) * (len + 1));
3811 /* Sigh, mntent and friends don't work well.
3812 * It stops on the first line that doesn't begin with a '/'.
3813 * (linux 2.6.5, libc 2.3.2.ds1-12) - Gonz */
3814 fp = fopen ("/etc/mtab", "rt");
3816 fp = fopen ("/etc/mnttab", "rt");
3822 while (fgets (buffer, 512, fp) != NULL) {
3826 splitted = g_strsplit (buffer, " ", 0);
3827 if (!*splitted || !*(splitted + 1)) {
3828 g_strfreev (splitted);
3832 unescape_octal (*(splitted + 1));
3833 dir = g_utf8_to_utf16 (*(splitted + 1), -1, NULL, &length, NULL);
3834 g_strfreev (splitted);
3835 if (total + length + 1 > len) {
3838 return len * 2; /* guess */
3841 memcpy (ptr + total, dir, sizeof (gunichar2) * length);
3843 total += length + 1;
3848 /* Commented out, does not work with my mtab!!! - Gonz */
3849 #ifdef NOTENABLED /* HAVE_MNTENT_H */
3853 gunichar2 *ptr, *dir;
3854 glong len, total = 0;
3857 fp = setmntent ("/etc/mtab", "rt");
3859 fp = setmntent ("/etc/mnttab", "rt");
3865 while ((mnt = getmntent (fp)) != NULL) {
3866 g_print ("GOT %s\n", mnt->mnt_dir);
3867 dir = g_utf8_to_utf16 (mnt->mnt_dir, &len, NULL, NULL, NULL);
3868 if (total + len + 1 > len) {
3869 return len * 2; /* guess */
3872 memcpy (ptr + total, dir, sizeof (gunichar2) * len);
3884 #if defined(HAVE_STATVFS) || defined(HAVE_STATFS)
3885 gboolean GetDiskFreeSpaceEx(const gunichar2 *path_name, WapiULargeInteger *free_bytes_avail,
3886 WapiULargeInteger *total_number_of_bytes,
3887 WapiULargeInteger *total_number_of_free_bytes)
3890 struct statvfs fsstat;
3891 #elif defined(HAVE_STATFS)
3892 struct statfs fsstat;
3894 gboolean isreadonly;
3895 gchar *utf8_path_name;
3897 unsigned long block_size;
3899 if (path_name == NULL) {
3900 utf8_path_name = g_strdup (g_get_current_dir());
3901 if (utf8_path_name == NULL) {
3902 SetLastError (ERROR_DIRECTORY);
3907 utf8_path_name = mono_unicode_to_external (path_name);
3908 if (utf8_path_name == NULL) {
3909 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3911 SetLastError (ERROR_INVALID_NAME);
3918 ret = statvfs (utf8_path_name, &fsstat);
3919 isreadonly = ((fsstat.f_flag & ST_RDONLY) == ST_RDONLY);
3920 block_size = fsstat.f_frsize;
3921 #elif defined(HAVE_STATFS)
3922 ret = statfs (utf8_path_name, &fsstat);
3923 #if defined (MNT_RDONLY)
3924 isreadonly = ((fsstat.f_flags & MNT_RDONLY) == MNT_RDONLY);
3925 #elif defined (MS_RDONLY)
3926 isreadonly = ((fsstat.f_flags & MS_RDONLY) == MS_RDONLY);
3928 block_size = fsstat.f_bsize;
3930 } while(ret == -1 && errno == EINTR);
3932 g_free(utf8_path_name);
3935 _wapi_set_last_error_from_errno ();
3936 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: statvfs failed: %s", __func__, strerror (errno));
3940 /* total number of free bytes for non-root */
3941 if (free_bytes_avail != NULL) {
3943 free_bytes_avail->QuadPart = 0;
3946 free_bytes_avail->QuadPart = block_size * (guint64)fsstat.f_bavail;
3950 /* total number of bytes available for non-root */
3951 if (total_number_of_bytes != NULL) {
3952 total_number_of_bytes->QuadPart = block_size * (guint64)fsstat.f_blocks;
3955 /* total number of bytes available for root */
3956 if (total_number_of_free_bytes != NULL) {
3958 total_number_of_free_bytes->QuadPart = 0;
3961 total_number_of_free_bytes->QuadPart = block_size * (guint64)fsstat.f_bfree;
3968 gboolean GetDiskFreeSpaceEx(const gunichar2 *path_name, WapiULargeInteger *free_bytes_avail,
3969 WapiULargeInteger *total_number_of_bytes,
3970 WapiULargeInteger *total_number_of_free_bytes)
3972 if (free_bytes_avail != NULL) {
3973 free_bytes_avail->QuadPart = (guint64) -1;
3976 if (total_number_of_bytes != NULL) {
3977 total_number_of_bytes->QuadPart = (guint64) -1;
3980 if (total_number_of_free_bytes != NULL) {
3981 total_number_of_free_bytes->QuadPart = (guint64) -1;
3989 * General Unix support
3994 const long fstypeid;
3996 const gchar* fstype;
3999 static _wapi_drive_type _wapi_drive_types[] = {
4001 { DRIVE_REMOTE, "afp" },
4002 { DRIVE_REMOTE, "autofs" },
4003 { DRIVE_CDROM, "cddafs" },
4004 { DRIVE_CDROM, "cd9660" },
4005 { DRIVE_RAMDISK, "devfs" },
4006 { DRIVE_FIXED, "exfat" },
4007 { DRIVE_RAMDISK, "fdesc" },
4008 { DRIVE_REMOTE, "ftp" },
4009 { DRIVE_FIXED, "hfs" },
4010 { DRIVE_FIXED, "msdos" },
4011 { DRIVE_REMOTE, "nfs" },
4012 { DRIVE_FIXED, "ntfs" },
4013 { DRIVE_REMOTE, "smbfs" },
4014 { DRIVE_FIXED, "udf" },
4015 { DRIVE_REMOTE, "webdav" },
4016 { DRIVE_UNKNOWN, NULL }
4018 { DRIVE_FIXED, ADFS_SUPER_MAGIC, "adfs"},
4019 { DRIVE_FIXED, AFFS_SUPER_MAGIC, "affs"},
4020 { DRIVE_REMOTE, AFS_SUPER_MAGIC, "afs"},
4021 { DRIVE_RAMDISK, AUTOFS_SUPER_MAGIC, "autofs"},
4022 { DRIVE_RAMDISK, AUTOFS_SBI_MAGIC, "autofs4"},
4023 { DRIVE_REMOTE, CODA_SUPER_MAGIC, "coda" },
4024 { DRIVE_RAMDISK, CRAMFS_MAGIC, "cramfs"},
4025 { DRIVE_RAMDISK, CRAMFS_MAGIC_WEND, "cramfs"},
4026 { DRIVE_REMOTE, CIFS_MAGIC_NUMBER, "cifs"},
4027 { DRIVE_RAMDISK, DEBUGFS_MAGIC, "debugfs"},
4028 { DRIVE_RAMDISK, SYSFS_MAGIC, "sysfs"},
4029 { DRIVE_RAMDISK, SECURITYFS_MAGIC, "securityfs"},
4030 { DRIVE_RAMDISK, SELINUX_MAGIC, "selinuxfs"},
4031 { DRIVE_RAMDISK, RAMFS_MAGIC, "ramfs"},
4032 { DRIVE_FIXED, SQUASHFS_MAGIC, "squashfs"},
4033 { DRIVE_FIXED, EFS_SUPER_MAGIC, "efs"},
4034 { DRIVE_FIXED, EXT2_SUPER_MAGIC, "ext"},
4035 { DRIVE_FIXED, EXT3_SUPER_MAGIC, "ext"},
4036 { DRIVE_FIXED, EXT4_SUPER_MAGIC, "ext"},
4037 { DRIVE_REMOTE, XENFS_SUPER_MAGIC, "xenfs"},
4038 { DRIVE_FIXED, BTRFS_SUPER_MAGIC, "btrfs"},
4039 { DRIVE_FIXED, HFS_SUPER_MAGIC, "hfs"},
4040 { DRIVE_FIXED, HFSPLUS_SUPER_MAGIC, "hfsplus"},
4041 { DRIVE_FIXED, HPFS_SUPER_MAGIC, "hpfs"},
4042 { DRIVE_RAMDISK, HUGETLBFS_MAGIC, "hugetlbfs"},
4043 { DRIVE_CDROM, ISOFS_SUPER_MAGIC, "iso"},
4044 { DRIVE_FIXED, JFFS2_SUPER_MAGIC, "jffs2"},
4045 { DRIVE_RAMDISK, ANON_INODE_FS_MAGIC, "anon_inode"},
4046 { DRIVE_FIXED, JFS_SUPER_MAGIC, "jfs"},
4047 { DRIVE_FIXED, MINIX_SUPER_MAGIC, "minix"},
4048 { DRIVE_FIXED, MINIX_SUPER_MAGIC2, "minix v2"},
4049 { DRIVE_FIXED, MINIX2_SUPER_MAGIC, "minix2"},
4050 { DRIVE_FIXED, MINIX2_SUPER_MAGIC2, "minix2 v2"},
4051 { DRIVE_FIXED, MINIX3_SUPER_MAGIC, "minix3"},
4052 { DRIVE_FIXED, MSDOS_SUPER_MAGIC, "msdos"},
4053 { DRIVE_REMOTE, NCP_SUPER_MAGIC, "ncp"},
4054 { DRIVE_REMOTE, NFS_SUPER_MAGIC, "nfs"},
4055 { DRIVE_FIXED, NTFS_SB_MAGIC, "ntfs"},
4056 { DRIVE_RAMDISK, OPENPROM_SUPER_MAGIC, "openpromfs"},
4057 { DRIVE_RAMDISK, PROC_SUPER_MAGIC, "proc"},
4058 { DRIVE_FIXED, QNX4_SUPER_MAGIC, "qnx4"},
4059 { DRIVE_FIXED, REISERFS_SUPER_MAGIC, "reiserfs"},
4060 { DRIVE_RAMDISK, ROMFS_MAGIC, "romfs"},
4061 { DRIVE_REMOTE, SMB_SUPER_MAGIC, "samba"},
4062 { DRIVE_RAMDISK, CGROUP_SUPER_MAGIC, "cgroupfs"},
4063 { DRIVE_RAMDISK, FUTEXFS_SUPER_MAGIC, "futexfs"},
4064 { DRIVE_FIXED, SYSV2_SUPER_MAGIC, "sysv2"},
4065 { DRIVE_FIXED, SYSV4_SUPER_MAGIC, "sysv4"},
4066 { DRIVE_RAMDISK, TMPFS_MAGIC, "tmpfs"},
4067 { DRIVE_RAMDISK, DEVPTS_SUPER_MAGIC, "devpts"},
4068 { DRIVE_CDROM, UDF_SUPER_MAGIC, "udf"},
4069 { DRIVE_FIXED, UFS_MAGIC, "ufs"},
4070 { DRIVE_FIXED, UFS_MAGIC_BW, "ufs"},
4071 { DRIVE_FIXED, UFS2_MAGIC, "ufs2"},
4072 { DRIVE_FIXED, UFS_CIGAM, "ufs"},
4073 { DRIVE_RAMDISK, USBDEVICE_SUPER_MAGIC, "usbdev"},
4074 { DRIVE_FIXED, XENIX_SUPER_MAGIC, "xenix"},
4075 { DRIVE_FIXED, XFS_SB_MAGIC, "xfs"},
4076 { DRIVE_RAMDISK, FUSE_SUPER_MAGIC, "fuse"},
4077 { DRIVE_FIXED, V9FS_MAGIC, "9p"},
4078 { DRIVE_REMOTE, CEPH_SUPER_MAGIC, "ceph"},
4079 { DRIVE_RAMDISK, CONFIGFS_MAGIC, "configfs"},
4080 { DRIVE_RAMDISK, ECRYPTFS_SUPER_MAGIC, "eCryptfs"},
4081 { DRIVE_FIXED, EXOFS_SUPER_MAGIC, "exofs"},
4082 { DRIVE_FIXED, VXFS_SUPER_MAGIC, "vxfs"},
4083 { DRIVE_FIXED, VXFS_OLT_MAGIC, "vxfs_olt"},
4084 { DRIVE_REMOTE, GFS2_MAGIC, "gfs2"},
4085 { DRIVE_FIXED, LOGFS_MAGIC_U32, "logfs"},
4086 { DRIVE_FIXED, OCFS2_SUPER_MAGIC, "ocfs2"},
4087 { DRIVE_FIXED, OMFS_MAGIC, "omfs"},
4088 { DRIVE_FIXED, UBIFS_SUPER_MAGIC, "ubifs"},
4089 { DRIVE_UNKNOWN, 0, NULL}
4091 { DRIVE_RAMDISK, "ramfs" },
4092 { DRIVE_RAMDISK, "tmpfs" },
4093 { DRIVE_RAMDISK, "proc" },
4094 { DRIVE_RAMDISK, "sysfs" },
4095 { DRIVE_RAMDISK, "debugfs" },
4096 { DRIVE_RAMDISK, "devpts" },
4097 { DRIVE_RAMDISK, "securityfs" },
4098 { DRIVE_CDROM, "iso9660" },
4099 { DRIVE_FIXED, "ext2" },
4100 { DRIVE_FIXED, "ext3" },
4101 { DRIVE_FIXED, "ext4" },
4102 { DRIVE_FIXED, "sysv" },
4103 { DRIVE_FIXED, "reiserfs" },
4104 { DRIVE_FIXED, "ufs" },
4105 { DRIVE_FIXED, "vfat" },
4106 { DRIVE_FIXED, "msdos" },
4107 { DRIVE_FIXED, "udf" },
4108 { DRIVE_FIXED, "hfs" },
4109 { DRIVE_FIXED, "hpfs" },
4110 { DRIVE_FIXED, "qnx4" },
4111 { DRIVE_FIXED, "ntfs" },
4112 { DRIVE_FIXED, "ntfs-3g" },
4113 { DRIVE_REMOTE, "smbfs" },
4114 { DRIVE_REMOTE, "fuse" },
4115 { DRIVE_REMOTE, "nfs" },
4116 { DRIVE_REMOTE, "nfs4" },
4117 { DRIVE_REMOTE, "cifs" },
4118 { DRIVE_REMOTE, "ncpfs" },
4119 { DRIVE_REMOTE, "coda" },
4120 { DRIVE_REMOTE, "afs" },
4121 { DRIVE_UNKNOWN, NULL }
4126 static guint32 _wapi_get_drive_type(long f_type)
4128 _wapi_drive_type *current;
4130 current = &_wapi_drive_types[0];
4131 while (current->drive_type != DRIVE_UNKNOWN) {
4132 if (current->fstypeid == f_type)
4133 return current->drive_type;
4137 return DRIVE_UNKNOWN;
4140 static guint32 _wapi_get_drive_type(const gchar* fstype)
4142 _wapi_drive_type *current;
4144 current = &_wapi_drive_types[0];
4145 while (current->drive_type != DRIVE_UNKNOWN) {
4146 if (strcmp (current->fstype, fstype) == 0)
4152 return current->drive_type;
4156 #if defined (PLATFORM_MACOSX) || defined (__linux__)
4158 GetDriveTypeFromPath (const char *utf8_root_path_name)
4162 if (statfs (utf8_root_path_name, &buf) == -1)
4163 return DRIVE_UNKNOWN;
4165 return _wapi_get_drive_type (buf.f_fstypename);
4167 return _wapi_get_drive_type (buf.f_type);
4172 GetDriveTypeFromPath (const gchar *utf8_root_path_name)
4179 fp = fopen ("/etc/mtab", "rt");
4181 fp = fopen ("/etc/mnttab", "rt");
4183 return(DRIVE_UNKNOWN);
4186 drive_type = DRIVE_NO_ROOT_DIR;
4187 while (fgets (buffer, 512, fp) != NULL) {
4188 splitted = g_strsplit (buffer, " ", 0);
4189 if (!*splitted || !*(splitted + 1) || !*(splitted + 2)) {
4190 g_strfreev (splitted);
4194 /* compare given root_path_name with the one from mtab,
4195 if length of utf8_root_path_name is zero it must be the root dir */
4196 if (strcmp (*(splitted + 1), utf8_root_path_name) == 0 ||
4197 (strcmp (*(splitted + 1), "/") == 0 && strlen (utf8_root_path_name) == 0)) {
4198 drive_type = _wapi_get_drive_type (*(splitted + 2));
4199 /* it is possible this path might be mounted again with
4200 a known type...keep looking */
4201 if (drive_type != DRIVE_UNKNOWN) {
4202 g_strfreev (splitted);
4207 g_strfreev (splitted);
4215 guint32 GetDriveType(const gunichar2 *root_path_name)
4217 gchar *utf8_root_path_name;
4220 if (root_path_name == NULL) {
4221 utf8_root_path_name = g_strdup (g_get_current_dir());
4222 if (utf8_root_path_name == NULL) {
4223 return(DRIVE_NO_ROOT_DIR);
4227 utf8_root_path_name = mono_unicode_to_external (root_path_name);
4228 if (utf8_root_path_name == NULL) {
4229 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
4230 return(DRIVE_NO_ROOT_DIR);
4233 /* strip trailing slash for compare below */
4234 if (g_str_has_suffix(utf8_root_path_name, "/") && utf8_root_path_name [1] != 0) {
4235 utf8_root_path_name[strlen(utf8_root_path_name) - 1] = 0;
4238 drive_type = GetDriveTypeFromPath (utf8_root_path_name);
4239 g_free (utf8_root_path_name);
4241 return (drive_type);
4244 #if defined (PLATFORM_MACOSX) || defined (__linux__) || defined(PLATFORM_BSD) || defined(__native_client__) || defined(__FreeBSD_kernel__)
4246 get_fstypename (gchar *utfpath)
4248 #if defined (PLATFORM_MACOSX) || defined (__linux__)
4251 _wapi_drive_type *current;
4253 if (statfs (utfpath, &stat) == -1)
4256 return g_strdup (stat.f_fstypename);
4258 current = &_wapi_drive_types[0];
4259 while (current->drive_type != DRIVE_UNKNOWN) {
4260 if (stat.f_type == current->fstypeid)
4261 return g_strdup (current->fstype);
4271 /* Linux has struct statfs which has a different layout */
4273 GetVolumeInformation (const gunichar2 *path, gunichar2 *volumename, int volumesize, int *outserial, int *maxcomp, int *fsflags, gunichar2 *fsbuffer, int fsbuffersize)
4277 gboolean status = FALSE;
4280 // We only support getting the file system type
4281 if (fsbuffer == NULL)
4284 utfpath = mono_unicode_to_external (path);
4285 if ((fstypename = get_fstypename (utfpath)) != NULL){
4286 gunichar2 *ret = g_utf8_to_utf16 (fstypename, -1, NULL, &len, NULL);
4287 if (ret != NULL && len < fsbuffersize){
4288 memcpy (fsbuffer, ret, len * sizeof (gunichar2));
4294 g_free (fstypename);
4303 _wapi_io_init (void)
4305 mono_os_mutex_init (&stdhandle_mutex);