2 * io.c: File, console and find handles
5 * Dick Porter (dick@ximian.com)
7 * (C) 2002 Ximian, Inc.
8 * Copyright (c) 2002-2006 Novell, Inc.
9 * Copyright 2011 Xamarin Inc (http://www.xamarin.com).
19 #ifdef HAVE_SYS_STATVFS_H
20 #include <sys/statvfs.h>
22 #if defined(HAVE_SYS_STATFS_H)
23 #include <sys/statfs.h>
25 #if defined(HAVE_SYS_PARAM_H) && defined(HAVE_SYS_MOUNT_H)
26 #include <sys/param.h>
27 #include <sys/mount.h>
29 #include <sys/types.h>
33 #include <sys/ioctl.h>
35 #include <mono/utils/linux_magic.h>
38 #include <mono/io-layer/wapi.h>
39 #include <mono/io-layer/wapi-private.h>
40 #include <mono/io-layer/handles-private.h>
41 #include <mono/io-layer/io-private.h>
42 #include <mono/io-layer/timefuncs-private.h>
43 #include <mono/io-layer/thread-private.h>
44 #include <mono/io-layer/io-portability.h>
45 #include <mono/io-layer/io-trace.h>
46 #include <mono/utils/strenc.h>
47 #include <mono/utils/mono-once.h>
48 #include <mono/utils/mono-logger-internals.h>
50 static void file_close (gpointer handle, gpointer data);
51 static WapiFileType file_getfiletype(void);
52 static gboolean file_read(gpointer handle, gpointer buffer,
53 guint32 numbytes, guint32 *bytesread,
54 WapiOverlapped *overlapped);
55 static gboolean file_write(gpointer handle, gconstpointer buffer,
56 guint32 numbytes, guint32 *byteswritten,
57 WapiOverlapped *overlapped);
58 static gboolean file_flush(gpointer handle);
59 static guint32 file_seek(gpointer handle, gint32 movedistance,
60 gint32 *highmovedistance, WapiSeekMethod method);
61 static gboolean file_setendoffile(gpointer handle);
62 static guint32 file_getfilesize(gpointer handle, guint32 *highsize);
63 static gboolean file_getfiletime(gpointer handle, WapiFileTime *create_time,
64 WapiFileTime *last_access,
65 WapiFileTime *last_write);
66 static gboolean file_setfiletime(gpointer handle,
67 const WapiFileTime *create_time,
68 const WapiFileTime *last_access,
69 const WapiFileTime *last_write);
70 static guint32 GetDriveTypeFromPath (const gchar *utf8_root_path_name);
72 /* File handle is only signalled for overlapped IO */
73 struct _WapiHandleOps _wapi_file_ops = {
74 file_close, /* close */
78 NULL, /* special_wait */
82 void _wapi_file_details (gpointer handle_info)
84 struct _WapiHandle_file *file = (struct _WapiHandle_file *)handle_info;
86 g_print ("[%20s] acc: %c%c%c, shr: %c%c%c, attrs: %5u",
88 file->fileaccess&GENERIC_READ?'R':'.',
89 file->fileaccess&GENERIC_WRITE?'W':'.',
90 file->fileaccess&GENERIC_EXECUTE?'X':'.',
91 file->sharemode&FILE_SHARE_READ?'R':'.',
92 file->sharemode&FILE_SHARE_WRITE?'W':'.',
93 file->sharemode&FILE_SHARE_DELETE?'D':'.',
97 static void console_close (gpointer handle, gpointer data);
98 static WapiFileType console_getfiletype(void);
99 static gboolean console_read(gpointer handle, gpointer buffer,
100 guint32 numbytes, guint32 *bytesread,
101 WapiOverlapped *overlapped);
102 static gboolean console_write(gpointer handle, gconstpointer buffer,
103 guint32 numbytes, guint32 *byteswritten,
104 WapiOverlapped *overlapped);
106 /* Console is mostly the same as file, except it can block waiting for
109 struct _WapiHandleOps _wapi_console_ops = {
110 console_close, /* close */
114 NULL, /* special_wait */
118 void _wapi_console_details (gpointer handle_info)
120 _wapi_file_details (handle_info);
123 /* Find handle has no ops.
125 struct _WapiHandleOps _wapi_find_ops = {
130 NULL, /* special_wait */
134 static void pipe_close (gpointer handle, gpointer data);
135 static WapiFileType pipe_getfiletype (void);
136 static gboolean pipe_read (gpointer handle, gpointer buffer, guint32 numbytes,
137 guint32 *bytesread, WapiOverlapped *overlapped);
138 static gboolean pipe_write (gpointer handle, gconstpointer buffer,
139 guint32 numbytes, guint32 *byteswritten,
140 WapiOverlapped *overlapped);
144 struct _WapiHandleOps _wapi_pipe_ops = {
145 pipe_close, /* close */
149 NULL, /* special_wait */
153 void _wapi_pipe_details (gpointer handle_info)
155 _wapi_file_details (handle_info);
158 static const struct {
159 /* File, console and pipe handles */
160 WapiFileType (*getfiletype)(void);
162 /* File, console and pipe handles */
163 gboolean (*readfile)(gpointer handle, gpointer buffer,
164 guint32 numbytes, guint32 *bytesread,
165 WapiOverlapped *overlapped);
166 gboolean (*writefile)(gpointer handle, gconstpointer buffer,
167 guint32 numbytes, guint32 *byteswritten,
168 WapiOverlapped *overlapped);
169 gboolean (*flushfile)(gpointer handle);
172 guint32 (*seek)(gpointer handle, gint32 movedistance,
173 gint32 *highmovedistance, WapiSeekMethod method);
174 gboolean (*setendoffile)(gpointer handle);
175 guint32 (*getfilesize)(gpointer handle, guint32 *highsize);
176 gboolean (*getfiletime)(gpointer handle, WapiFileTime *create_time,
177 WapiFileTime *last_access,
178 WapiFileTime *last_write);
179 gboolean (*setfiletime)(gpointer handle,
180 const WapiFileTime *create_time,
181 const WapiFileTime *last_access,
182 const WapiFileTime *last_write);
183 } io_ops[WAPI_HANDLE_COUNT]={
184 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
187 file_read, file_write,
188 file_flush, file_seek,
194 {console_getfiletype,
197 NULL, NULL, NULL, NULL, NULL, NULL},
199 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
201 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
203 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
205 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
206 /* socket (will need at least read and write) */
207 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
209 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
211 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
216 NULL, NULL, NULL, NULL, NULL, NULL},
219 static mono_once_t io_ops_once=MONO_ONCE_INIT;
220 static gboolean lock_while_writing = FALSE;
222 static void io_ops_init (void)
224 /* _wapi_handle_register_capabilities (WAPI_HANDLE_FILE, */
225 /* WAPI_HANDLE_CAP_WAIT); */
226 /* _wapi_handle_register_capabilities (WAPI_HANDLE_CONSOLE, */
227 /* WAPI_HANDLE_CAP_WAIT); */
229 if (g_getenv ("MONO_STRICT_IO_EMULATION") != NULL) {
230 lock_while_writing = TRUE;
234 /* Some utility functions.
238 * Check if a file is writable by the current user.
240 * This is is a best effort kind of thing. It assumes a reasonable sane set
241 * of permissions by the underlying OS.
243 * We generally assume that basic unix permission bits are authoritative. Which might not
244 * be the case under systems with extended permissions systems (posix ACLs, SELinux, OSX/iOS sandboxing, etc)
246 * The choice of access as the fallback is due to the expected lower overhead compared to trying to open the file.
248 * The only expected problem with using access are for root, setuid or setgid programs as access is not consistent
249 * under those situations. It's to be expected that this should not happen in practice as those bits are very dangerous
250 * and should not be used with a dynamic runtime.
253 is_file_writable (struct stat *st, const char *path)
256 // OS X Finder "locked" or `ls -lO` "uchg".
257 // This only covers one of several cases where an OS X file could be unwritable through special flags.
258 if (st->st_flags & (UF_IMMUTABLE|SF_IMMUTABLE))
262 /* Is it globally writable? */
263 if (st->st_mode & S_IWOTH)
266 /* Am I the owner? */
267 if ((st->st_uid == geteuid ()) && (st->st_mode & S_IWUSR))
270 /* Am I in the same group? */
271 if ((st->st_gid == getegid ()) && (st->st_mode & S_IWGRP))
274 /* Fallback to using access(2). It's not ideal as it might not take into consideration euid/egid
275 * but it's the only sane option we have on unix.
277 return access (path, W_OK) == 0;
281 static guint32 _wapi_stat_to_file_attributes (const gchar *pathname,
288 /* FIXME: this could definitely be better, but there seems to
289 * be no pattern to the attributes that are set
292 /* Sockets (0140000) != Directory (040000) + Regular file (0100000) */
293 if (S_ISSOCK (buf->st_mode))
294 buf->st_mode &= ~S_IFSOCK; /* don't consider socket protection */
296 filename = _wapi_basename (pathname);
298 if (S_ISDIR (buf->st_mode)) {
299 attrs = FILE_ATTRIBUTE_DIRECTORY;
300 if (!is_file_writable (buf, pathname)) {
301 attrs |= FILE_ATTRIBUTE_READONLY;
303 if (filename[0] == '.') {
304 attrs |= FILE_ATTRIBUTE_HIDDEN;
307 if (!is_file_writable (buf, pathname)) {
308 attrs = FILE_ATTRIBUTE_READONLY;
310 if (filename[0] == '.') {
311 attrs |= FILE_ATTRIBUTE_HIDDEN;
313 } else if (filename[0] == '.') {
314 attrs = FILE_ATTRIBUTE_HIDDEN;
316 attrs = FILE_ATTRIBUTE_NORMAL;
321 if (S_ISLNK (lbuf->st_mode)) {
322 attrs |= FILE_ATTRIBUTE_REPARSE_POINT;
332 _wapi_set_last_error_from_errno (void)
334 SetLastError (_wapi_get_win32_file_error (errno));
337 static void _wapi_set_last_path_error_from_errno (const gchar *dir,
340 if (errno == ENOENT) {
341 /* Check the path - if it's a missing directory then
342 * we need to set PATH_NOT_FOUND not FILE_NOT_FOUND
348 dirname = _wapi_dirname (path);
350 dirname = g_strdup (dir);
353 if (_wapi_access (dirname, F_OK) == 0) {
354 SetLastError (ERROR_FILE_NOT_FOUND);
356 SetLastError (ERROR_PATH_NOT_FOUND);
361 _wapi_set_last_error_from_errno ();
367 static void file_close (gpointer handle, gpointer data)
369 struct _WapiHandle_file *file_handle = (struct _WapiHandle_file *)data;
370 int fd = file_handle->fd;
372 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing file handle %p [%s]", __func__, handle,
373 file_handle->filename);
375 if (file_handle->attrs & FILE_FLAG_DELETE_ON_CLOSE)
376 _wapi_unlink (file_handle->filename);
378 g_free (file_handle->filename);
380 if (file_handle->share_info)
381 _wapi_handle_share_release (file_handle->share_info);
386 static WapiFileType file_getfiletype(void)
388 return(FILE_TYPE_DISK);
391 static gboolean file_read(gpointer handle, gpointer buffer,
392 guint32 numbytes, guint32 *bytesread,
393 WapiOverlapped *overlapped)
395 struct _WapiHandle_file *file_handle;
399 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
400 (gpointer *)&file_handle);
402 g_warning ("%s: error looking up file handle %p", __func__,
404 SetLastError (ERROR_INVALID_HANDLE);
408 fd = file_handle->fd;
409 if(bytesread!=NULL) {
413 if(!(file_handle->fileaccess & GENERIC_READ) &&
414 !(file_handle->fileaccess & GENERIC_ALL)) {
415 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
416 __func__, handle, file_handle->fileaccess);
418 SetLastError (ERROR_ACCESS_DENIED);
423 ret = read (fd, buffer, numbytes);
424 } while (ret == -1 && errno == EINTR &&
425 !_wapi_thread_cur_apc_pending());
430 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__,
431 handle, strerror(err));
432 SetLastError (_wapi_get_win32_file_error (err));
436 if (bytesread != NULL) {
443 static gboolean file_write(gpointer handle, gconstpointer buffer,
444 guint32 numbytes, guint32 *byteswritten,
445 WapiOverlapped *overlapped G_GNUC_UNUSED)
447 struct _WapiHandle_file *file_handle;
450 off_t current_pos = 0;
452 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
453 (gpointer *)&file_handle);
455 g_warning ("%s: error looking up file handle %p", __func__,
457 SetLastError (ERROR_INVALID_HANDLE);
461 fd = file_handle->fd;
463 if(byteswritten!=NULL) {
467 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
468 !(file_handle->fileaccess & GENERIC_ALL)) {
469 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);
471 SetLastError (ERROR_ACCESS_DENIED);
475 if (lock_while_writing) {
476 /* Need to lock the region we're about to write to,
477 * because we only do advisory locking on POSIX
480 current_pos = lseek (fd, (off_t)0, SEEK_CUR);
481 if (current_pos == -1) {
482 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p lseek failed: %s", __func__,
483 handle, strerror (errno));
484 _wapi_set_last_error_from_errno ();
488 if (_wapi_lock_file_region (fd, current_pos,
489 numbytes) == FALSE) {
490 /* The error has already been set */
496 ret = write (fd, buffer, numbytes);
497 } while (ret == -1 && errno == EINTR &&
498 !_wapi_thread_cur_apc_pending());
500 if (lock_while_writing) {
501 _wapi_unlock_file_region (fd, current_pos, numbytes);
505 if (errno == EINTR) {
508 _wapi_set_last_error_from_errno ();
510 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s",
511 __func__, handle, strerror(errno));
516 if (byteswritten != NULL) {
522 static gboolean file_flush(gpointer handle)
524 struct _WapiHandle_file *file_handle;
528 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
529 (gpointer *)&file_handle);
531 g_warning ("%s: error looking up file handle %p", __func__,
533 SetLastError (ERROR_INVALID_HANDLE);
537 fd = file_handle->fd;
539 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
540 !(file_handle->fileaccess & GENERIC_ALL)) {
541 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);
543 SetLastError (ERROR_ACCESS_DENIED);
549 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fsync of handle %p error: %s", __func__, handle,
552 _wapi_set_last_error_from_errno ();
559 static guint32 file_seek(gpointer handle, gint32 movedistance,
560 gint32 *highmovedistance, WapiSeekMethod method)
562 struct _WapiHandle_file *file_handle;
564 gint64 offset, newpos;
568 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
569 (gpointer *)&file_handle);
571 g_warning ("%s: error looking up file handle %p", __func__,
573 SetLastError (ERROR_INVALID_HANDLE);
574 return(INVALID_SET_FILE_POINTER);
577 fd = file_handle->fd;
579 if(!(file_handle->fileaccess & GENERIC_READ) &&
580 !(file_handle->fileaccess & GENERIC_WRITE) &&
581 !(file_handle->fileaccess & GENERIC_ALL)) {
582 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);
584 SetLastError (ERROR_ACCESS_DENIED);
585 return(INVALID_SET_FILE_POINTER);
599 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: invalid seek type %d", __func__, method);
601 SetLastError (ERROR_INVALID_PARAMETER);
602 return(INVALID_SET_FILE_POINTER);
605 #ifdef HAVE_LARGE_FILE_SUPPORT
606 if(highmovedistance==NULL) {
608 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: setting offset to %lld (low %d)", __func__,
609 offset, movedistance);
611 offset=((gint64) *highmovedistance << 32) | (guint32)movedistance;
613 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);
619 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: moving handle %p by %lld bytes from %d", __func__,
620 handle, (long long)offset, whence);
622 #ifdef PLATFORM_ANDROID
623 /* bionic doesn't support -D_FILE_OFFSET_BITS=64 */
624 newpos=lseek64(fd, offset, whence);
626 newpos=lseek(fd, offset, whence);
629 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lseek on handle %p returned error %s",
630 __func__, handle, strerror(errno));
632 _wapi_set_last_error_from_errno ();
633 return(INVALID_SET_FILE_POINTER);
636 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lseek returns %lld", __func__, newpos);
638 #ifdef HAVE_LARGE_FILE_SUPPORT
639 ret=newpos & 0xFFFFFFFF;
640 if(highmovedistance!=NULL) {
641 *highmovedistance=newpos>>32;
645 if(highmovedistance!=NULL) {
646 /* Accurate, but potentially dodgy :-) */
651 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: move of handle %p returning %d/%d", __func__,
652 handle, ret, highmovedistance==NULL?0:*highmovedistance);
657 static gboolean file_setendoffile(gpointer handle)
659 struct _WapiHandle_file *file_handle;
665 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
666 (gpointer *)&file_handle);
668 g_warning ("%s: error looking up file handle %p", __func__,
670 SetLastError (ERROR_INVALID_HANDLE);
673 fd = file_handle->fd;
675 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
676 !(file_handle->fileaccess & GENERIC_ALL)) {
677 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);
679 SetLastError (ERROR_ACCESS_DENIED);
683 /* Find the current file position, and the file length. If
684 * the file position is greater than the length, write to
685 * extend the file with a hole. If the file position is less
686 * than the length, truncate the file.
689 ret=fstat(fd, &statbuf);
691 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__,
692 handle, strerror(errno));
694 _wapi_set_last_error_from_errno ();
698 pos=lseek(fd, (off_t)0, SEEK_CUR);
700 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p lseek failed: %s", __func__,
701 handle, strerror(errno));
703 _wapi_set_last_error_from_errno ();
707 #ifdef FTRUNCATE_DOESNT_EXTEND
708 off_t size = statbuf.st_size;
709 /* I haven't bothered to write the configure.ac stuff for this
710 * because I don't know if any platform needs it. I'm leaving
711 * this code just in case though
714 /* Extend the file. Use write() here, because some
715 * manuals say that ftruncate() behaviour is undefined
716 * when the file needs extending. The POSIX spec says
717 * that on XSI-conformant systems it extends, so if
718 * every system we care about conforms, then we can
722 ret = write (fd, "", 1);
723 } while (ret == -1 && errno == EINTR &&
724 !_wapi_thread_cur_apc_pending());
727 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p extend write failed: %s", __func__, handle, strerror(errno));
729 _wapi_set_last_error_from_errno ();
733 /* And put the file position back after the write */
734 ret = lseek (fd, pos, SEEK_SET);
736 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p second lseek failed: %s",
737 __func__, handle, strerror(errno));
739 _wapi_set_last_error_from_errno ();
745 /* Native Client has no ftruncate function, even in standalone sel_ldr. */
746 #ifndef __native_client__
747 /* always truncate, because the extend write() adds an extra
748 * byte to the end of the file
751 ret=ftruncate(fd, pos);
753 while (ret==-1 && errno==EINTR && !_wapi_thread_cur_apc_pending());
755 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p ftruncate failed: %s", __func__,
756 handle, strerror(errno));
758 _wapi_set_last_error_from_errno ();
766 static guint32 file_getfilesize(gpointer handle, guint32 *highsize)
768 struct _WapiHandle_file *file_handle;
775 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
776 (gpointer *)&file_handle);
778 g_warning ("%s: error looking up file handle %p", __func__,
780 SetLastError (ERROR_INVALID_HANDLE);
781 return(INVALID_FILE_SIZE);
783 fd = file_handle->fd;
785 if(!(file_handle->fileaccess & GENERIC_READ) &&
786 !(file_handle->fileaccess & GENERIC_WRITE) &&
787 !(file_handle->fileaccess & GENERIC_ALL)) {
788 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);
790 SetLastError (ERROR_ACCESS_DENIED);
791 return(INVALID_FILE_SIZE);
794 /* If the file has a size with the low bits 0xFFFFFFFF the
795 * caller can't tell if this is an error, so clear the error
798 SetLastError (ERROR_SUCCESS);
800 ret = fstat(fd, &statbuf);
802 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__,
803 handle, strerror(errno));
805 _wapi_set_last_error_from_errno ();
806 return(INVALID_FILE_SIZE);
809 /* fstat indicates block devices as zero-length, so go a different path */
811 if (S_ISBLK(statbuf.st_mode)) {
813 if (ioctl(fd, BLKGETSIZE64, &bigsize) < 0) {
814 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p ioctl BLKGETSIZE64 failed: %s",
815 __func__, handle, strerror(errno));
817 _wapi_set_last_error_from_errno ();
818 return(INVALID_FILE_SIZE);
821 size = bigsize & 0xFFFFFFFF;
822 if (highsize != NULL) {
823 *highsize = bigsize>>32;
826 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning block device size %d/%d",
827 __func__, size, *highsize);
833 #ifdef HAVE_LARGE_FILE_SUPPORT
834 size = statbuf.st_size & 0xFFFFFFFF;
835 if (highsize != NULL) {
836 *highsize = statbuf.st_size>>32;
839 if (highsize != NULL) {
840 /* Accurate, but potentially dodgy :-) */
843 size = statbuf.st_size;
846 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning size %d/%d", __func__, size, *highsize);
851 static gboolean file_getfiletime(gpointer handle, WapiFileTime *create_time,
852 WapiFileTime *last_access,
853 WapiFileTime *last_write)
855 struct _WapiHandle_file *file_handle;
858 guint64 create_ticks, access_ticks, write_ticks;
861 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
862 (gpointer *)&file_handle);
864 g_warning ("%s: error looking up file handle %p", __func__,
866 SetLastError (ERROR_INVALID_HANDLE);
869 fd = file_handle->fd;
871 if(!(file_handle->fileaccess & GENERIC_READ) &&
872 !(file_handle->fileaccess & GENERIC_ALL)) {
873 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
874 __func__, handle, file_handle->fileaccess);
876 SetLastError (ERROR_ACCESS_DENIED);
880 ret=fstat(fd, &statbuf);
882 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__, handle,
885 _wapi_set_last_error_from_errno ();
889 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: atime: %ld ctime: %ld mtime: %ld", __func__,
890 statbuf.st_atime, statbuf.st_ctime,
893 /* Try and guess a meaningful create time by using the older
896 /* The magic constant comes from msdn documentation
897 * "Converting a time_t Value to a File Time"
899 if(statbuf.st_atime < statbuf.st_ctime) {
900 create_ticks=((guint64)statbuf.st_atime*10000000)
901 + 116444736000000000ULL;
903 create_ticks=((guint64)statbuf.st_ctime*10000000)
904 + 116444736000000000ULL;
907 access_ticks=((guint64)statbuf.st_atime*10000000)+116444736000000000ULL;
908 write_ticks=((guint64)statbuf.st_mtime*10000000)+116444736000000000ULL;
910 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: aticks: %llu cticks: %llu wticks: %llu", __func__,
911 access_ticks, create_ticks, write_ticks);
913 if(create_time!=NULL) {
914 create_time->dwLowDateTime = create_ticks & 0xFFFFFFFF;
915 create_time->dwHighDateTime = create_ticks >> 32;
918 if(last_access!=NULL) {
919 last_access->dwLowDateTime = access_ticks & 0xFFFFFFFF;
920 last_access->dwHighDateTime = access_ticks >> 32;
923 if(last_write!=NULL) {
924 last_write->dwLowDateTime = write_ticks & 0xFFFFFFFF;
925 last_write->dwHighDateTime = write_ticks >> 32;
931 static gboolean file_setfiletime(gpointer handle,
932 const WapiFileTime *create_time G_GNUC_UNUSED,
933 const WapiFileTime *last_access,
934 const WapiFileTime *last_write)
936 struct _WapiHandle_file *file_handle;
938 struct utimbuf utbuf;
940 guint64 access_ticks, write_ticks;
943 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FILE,
944 (gpointer *)&file_handle);
946 g_warning ("%s: error looking up file handle %p", __func__,
948 SetLastError (ERROR_INVALID_HANDLE);
951 fd = file_handle->fd;
953 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
954 !(file_handle->fileaccess & GENERIC_ALL)) {
955 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);
957 SetLastError (ERROR_ACCESS_DENIED);
961 if(file_handle->filename == NULL) {
962 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p unknown filename", __func__, handle);
964 SetLastError (ERROR_INVALID_HANDLE);
968 /* Get the current times, so we can put the same times back in
969 * the event that one of the FileTime structs is NULL
971 ret=fstat (fd, &statbuf);
973 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__, handle,
976 SetLastError (ERROR_INVALID_PARAMETER);
980 if(last_access!=NULL) {
981 access_ticks=((guint64)last_access->dwHighDateTime << 32) +
982 last_access->dwLowDateTime;
983 /* This is (time_t)0. We can actually go to INT_MIN,
984 * but this will do for now.
986 if (access_ticks < 116444736000000000ULL) {
987 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set access time too early",
989 SetLastError (ERROR_INVALID_PARAMETER);
993 utbuf.actime=(access_ticks - 116444736000000000ULL) / 10000000;
995 utbuf.actime=statbuf.st_atime;
998 if(last_write!=NULL) {
999 write_ticks=((guint64)last_write->dwHighDateTime << 32) +
1000 last_write->dwLowDateTime;
1001 /* This is (time_t)0. We can actually go to INT_MIN,
1002 * but this will do for now.
1004 if (write_ticks < 116444736000000000ULL) {
1005 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set write time too early",
1007 SetLastError (ERROR_INVALID_PARAMETER);
1011 utbuf.modtime=(write_ticks - 116444736000000000ULL) / 10000000;
1013 utbuf.modtime=statbuf.st_mtime;
1016 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: setting handle %p access %ld write %ld", __func__,
1017 handle, utbuf.actime, utbuf.modtime);
1019 ret = _wapi_utime (file_handle->filename, &utbuf);
1021 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p [%s] utime failed: %s", __func__,
1022 handle, file_handle->filename, strerror(errno));
1024 SetLastError (ERROR_INVALID_PARAMETER);
1031 static void console_close (gpointer handle, gpointer data)
1033 struct _WapiHandle_file *console_handle = (struct _WapiHandle_file *)data;
1034 int fd = console_handle->fd;
1036 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing console handle %p", __func__, handle);
1038 g_free (console_handle->filename);
1044 static WapiFileType console_getfiletype(void)
1046 return(FILE_TYPE_CHAR);
1049 static gboolean console_read(gpointer handle, gpointer buffer,
1050 guint32 numbytes, guint32 *bytesread,
1051 WapiOverlapped *overlapped G_GNUC_UNUSED)
1053 struct _WapiHandle_file *console_handle;
1057 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_CONSOLE,
1058 (gpointer *)&console_handle);
1060 g_warning ("%s: error looking up console handle %p", __func__,
1062 SetLastError (ERROR_INVALID_HANDLE);
1065 fd = console_handle->fd;
1067 if(bytesread!=NULL) {
1071 if(!(console_handle->fileaccess & GENERIC_READ) &&
1072 !(console_handle->fileaccess & GENERIC_ALL)) {
1073 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
1074 __func__, handle, console_handle->fileaccess);
1076 SetLastError (ERROR_ACCESS_DENIED);
1081 ret=read(fd, buffer, numbytes);
1082 } while (ret==-1 && errno==EINTR && !_wapi_thread_cur_apc_pending());
1085 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__, handle,
1088 _wapi_set_last_error_from_errno ();
1092 if(bytesread!=NULL) {
1099 static gboolean console_write(gpointer handle, gconstpointer buffer,
1100 guint32 numbytes, guint32 *byteswritten,
1101 WapiOverlapped *overlapped G_GNUC_UNUSED)
1103 struct _WapiHandle_file *console_handle;
1107 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_CONSOLE,
1108 (gpointer *)&console_handle);
1110 g_warning ("%s: error looking up console handle %p", __func__,
1112 SetLastError (ERROR_INVALID_HANDLE);
1115 fd = console_handle->fd;
1117 if(byteswritten!=NULL) {
1121 if(!(console_handle->fileaccess & GENERIC_WRITE) &&
1122 !(console_handle->fileaccess & GENERIC_ALL)) {
1123 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);
1125 SetLastError (ERROR_ACCESS_DENIED);
1130 ret = write(fd, buffer, numbytes);
1131 } while (ret == -1 && errno == EINTR &&
1132 !_wapi_thread_cur_apc_pending());
1135 if (errno == EINTR) {
1138 _wapi_set_last_error_from_errno ();
1140 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s",
1141 __func__, handle, strerror(errno));
1146 if(byteswritten!=NULL) {
1153 static void pipe_close (gpointer handle, gpointer data)
1155 struct _WapiHandle_file *pipe_handle = (struct _WapiHandle_file*)data;
1156 int fd = pipe_handle->fd;
1158 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing pipe handle %p", __func__, handle);
1160 /* No filename with pipe handles */
1165 static WapiFileType pipe_getfiletype(void)
1167 return(FILE_TYPE_PIPE);
1170 static gboolean pipe_read (gpointer handle, gpointer buffer,
1171 guint32 numbytes, guint32 *bytesread,
1172 WapiOverlapped *overlapped G_GNUC_UNUSED)
1174 struct _WapiHandle_file *pipe_handle;
1178 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_PIPE,
1179 (gpointer *)&pipe_handle);
1181 g_warning ("%s: error looking up pipe handle %p", __func__,
1183 SetLastError (ERROR_INVALID_HANDLE);
1186 fd = pipe_handle->fd;
1188 if(bytesread!=NULL) {
1192 if(!(pipe_handle->fileaccess & GENERIC_READ) &&
1193 !(pipe_handle->fileaccess & GENERIC_ALL)) {
1194 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
1195 __func__, handle, pipe_handle->fileaccess);
1197 SetLastError (ERROR_ACCESS_DENIED);
1201 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: reading up to %d bytes from pipe %p", __func__,
1205 ret=read(fd, buffer, numbytes);
1206 } while (ret==-1 && errno==EINTR && !_wapi_thread_cur_apc_pending());
1209 if (errno == EINTR) {
1212 _wapi_set_last_error_from_errno ();
1214 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__,
1215 handle, strerror(errno));
1221 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read %d bytes from pipe %p", __func__, ret, handle);
1223 if(bytesread!=NULL) {
1230 static gboolean pipe_write(gpointer handle, gconstpointer buffer,
1231 guint32 numbytes, guint32 *byteswritten,
1232 WapiOverlapped *overlapped G_GNUC_UNUSED)
1234 struct _WapiHandle_file *pipe_handle;
1238 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_PIPE,
1239 (gpointer *)&pipe_handle);
1241 g_warning ("%s: error looking up pipe handle %p", __func__,
1243 SetLastError (ERROR_INVALID_HANDLE);
1246 fd = pipe_handle->fd;
1248 if(byteswritten!=NULL) {
1252 if(!(pipe_handle->fileaccess & GENERIC_WRITE) &&
1253 !(pipe_handle->fileaccess & GENERIC_ALL)) {
1254 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);
1256 SetLastError (ERROR_ACCESS_DENIED);
1260 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: writing up to %d bytes to pipe %p", __func__, numbytes,
1264 ret = write (fd, buffer, numbytes);
1265 } while (ret == -1 && errno == EINTR &&
1266 !_wapi_thread_cur_apc_pending());
1269 if (errno == EINTR) {
1272 _wapi_set_last_error_from_errno ();
1274 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s", __func__,
1275 handle, strerror(errno));
1280 if(byteswritten!=NULL) {
1287 static int convert_flags(guint32 fileaccess, guint32 createmode)
1291 switch(fileaccess) {
1298 case GENERIC_READ|GENERIC_WRITE:
1302 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unknown access type 0x%x", __func__,
1307 switch(createmode) {
1309 flags|=O_CREAT|O_EXCL;
1312 flags|=O_CREAT|O_TRUNC;
1319 case TRUNCATE_EXISTING:
1323 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unknown create mode 0x%x", __func__,
1332 static mode_t convert_perms(guint32 sharemode)
1336 if(sharemode&FILE_SHARE_READ) {
1339 if(sharemode&FILE_SHARE_WRITE) {
1347 static gboolean share_allows_open (struct stat *statbuf, guint32 sharemode,
1349 struct _WapiFileShare **share_info)
1351 gboolean file_already_shared;
1352 guint32 file_existing_share, file_existing_access;
1354 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);
1356 if (file_already_shared) {
1357 /* The reference to this share info was incremented
1358 * when we looked it up, so be careful to put it back
1359 * if we conclude we can't use this file.
1361 if (file_existing_share == 0) {
1362 /* Quick and easy, no possibility to share */
1363 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);
1365 _wapi_handle_share_release (*share_info);
1370 if (((file_existing_share == FILE_SHARE_READ) &&
1371 (fileaccess != GENERIC_READ)) ||
1372 ((file_existing_share == FILE_SHARE_WRITE) &&
1373 (fileaccess != GENERIC_WRITE))) {
1374 /* New access mode doesn't match up */
1375 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);
1377 _wapi_handle_share_release (*share_info);
1382 if (((file_existing_access & GENERIC_READ) &&
1383 !(sharemode & FILE_SHARE_READ)) ||
1384 ((file_existing_access & GENERIC_WRITE) &&
1385 !(sharemode & FILE_SHARE_WRITE))) {
1386 /* New share mode doesn't match up */
1387 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);
1389 _wapi_handle_share_release (*share_info);
1394 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: New file!", __func__);
1402 share_allows_delete (struct stat *statbuf, struct _WapiFileShare **share_info)
1404 gboolean file_already_shared;
1405 guint32 file_existing_share, file_existing_access;
1407 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);
1409 if (file_already_shared) {
1410 /* The reference to this share info was incremented
1411 * when we looked it up, so be careful to put it back
1412 * if we conclude we can't use this file.
1414 if (file_existing_share == 0) {
1415 /* Quick and easy, no possibility to share */
1416 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);
1418 _wapi_handle_share_release (*share_info);
1423 if (!(file_existing_share & FILE_SHARE_DELETE)) {
1424 /* New access mode doesn't match up */
1425 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);
1427 _wapi_handle_share_release (*share_info);
1432 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: New file!", __func__);
1437 static gboolean share_check (struct stat *statbuf, guint32 sharemode,
1439 struct _WapiFileShare **share_info, int fd)
1441 if (share_allows_open (statbuf, sharemode, fileaccess,
1442 share_info) == TRUE) {
1446 /* Got a share violation. Double check that the file is still
1447 * open by someone, in case a process crashed while still
1448 * holding a file handle. This will also cope with someone
1449 * using Mono.Posix to close the file. This is cheaper and
1450 * less intrusive to other processes than initiating a handle
1454 _wapi_handle_check_share (*share_info, fd);
1455 if (share_allows_open (statbuf, sharemode, fileaccess,
1456 share_info) == TRUE) {
1460 return(share_allows_open (statbuf, sharemode, fileaccess, share_info));
1465 * @name: a pointer to a NULL-terminated unicode string, that names
1466 * the file or other object to create.
1467 * @fileaccess: specifies the file access mode
1468 * @sharemode: whether the file should be shared. This parameter is
1469 * currently ignored.
1470 * @security: Ignored for now.
1471 * @createmode: specifies whether to create a new file, whether to
1472 * overwrite an existing file, whether to truncate the file, etc.
1473 * @attrs: specifies file attributes and flags. On win32 attributes
1474 * are characteristics of the file, not the handle, and are ignored
1475 * when an existing file is opened. Flags give the library hints on
1476 * how to process a file to optimise performance.
1477 * @template: the handle of an open %GENERIC_READ file that specifies
1478 * attributes to apply to a newly created file, ignoring @attrs.
1479 * Normally this parameter is NULL. This parameter is ignored when an
1480 * existing file is opened.
1482 * Creates a new file handle. This only applies to normal files:
1483 * pipes are handled by CreatePipe(), and console handles are created
1484 * with GetStdHandle().
1486 * Return value: the new handle, or %INVALID_HANDLE_VALUE on error.
1488 gpointer CreateFile(const gunichar2 *name, guint32 fileaccess,
1489 guint32 sharemode, WapiSecurityAttributes *security,
1490 guint32 createmode, guint32 attrs,
1491 gpointer template_ G_GNUC_UNUSED)
1493 struct _WapiHandle_file file_handle = {0};
1495 int flags=convert_flags(fileaccess, createmode);
1496 /*mode_t perms=convert_perms(sharemode);*/
1497 /* we don't use sharemode, because that relates to sharing of
1498 * the file when the file is open and is already handled by
1499 * other code, perms instead are the on-disk permissions and
1500 * this is a sane default.
1505 WapiHandleType handle_type;
1506 struct stat statbuf;
1508 mono_once (&io_ops_once, io_ops_init);
1510 if (attrs & FILE_ATTRIBUTE_TEMPORARY)
1513 if (attrs & FILE_ATTRIBUTE_ENCRYPTED){
1514 SetLastError (ERROR_ENCRYPTION_FAILED);
1515 return INVALID_HANDLE_VALUE;
1519 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1521 SetLastError (ERROR_INVALID_NAME);
1522 return(INVALID_HANDLE_VALUE);
1525 filename = mono_unicode_to_external (name);
1526 if (filename == NULL) {
1527 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
1529 SetLastError (ERROR_INVALID_NAME);
1530 return(INVALID_HANDLE_VALUE);
1533 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Opening %s with share 0x%x and access 0x%x", __func__,
1534 filename, sharemode, fileaccess);
1536 fd = _wapi_open (filename, flags, perms);
1538 /* If we were trying to open a directory with write permissions
1539 * (e.g. O_WRONLY or O_RDWR), this call will fail with
1540 * EISDIR. However, this is a bit bogus because calls to
1541 * manipulate the directory (e.g. SetFileTime) will still work on
1542 * the directory because they use other API calls
1543 * (e.g. utime()). Hence, if we failed with the EISDIR error, try
1544 * to open the directory again without write permission.
1546 if (fd == -1 && errno == EISDIR)
1548 /* Try again but don't try to make it writable */
1549 fd = _wapi_open (filename, flags & ~(O_RDWR|O_WRONLY), perms);
1553 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Error opening file %s: %s", __func__, filename,
1555 _wapi_set_last_path_error_from_errno (NULL, filename);
1558 return(INVALID_HANDLE_VALUE);
1561 if (fd >= _wapi_fd_reserve) {
1562 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: File descriptor is too big", __func__);
1564 SetLastError (ERROR_TOO_MANY_OPEN_FILES);
1569 return(INVALID_HANDLE_VALUE);
1572 ret = fstat (fd, &statbuf);
1574 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fstat error of file %s: %s", __func__,
1575 filename, strerror (errno));
1576 _wapi_set_last_error_from_errno ();
1580 return(INVALID_HANDLE_VALUE);
1582 #ifdef __native_client__
1583 /* Workaround: Native Client currently returns the same fake inode
1584 * for all files, so do a simple hash on the filename so we don't
1585 * use the same share info for each file.
1587 statbuf.st_ino = g_str_hash(filename);
1590 if (share_check (&statbuf, sharemode, fileaccess,
1591 &file_handle.share_info, fd) == FALSE) {
1592 SetLastError (ERROR_SHARING_VIOLATION);
1596 return (INVALID_HANDLE_VALUE);
1598 if (file_handle.share_info == NULL) {
1599 /* No space, so no more files can be opened */
1600 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: No space in the share table", __func__);
1602 SetLastError (ERROR_TOO_MANY_OPEN_FILES);
1606 return(INVALID_HANDLE_VALUE);
1609 file_handle.filename = filename;
1611 if(security!=NULL) {
1612 //file_handle->security_attributes=_wapi_handle_scratch_store (
1613 //security, sizeof(WapiSecurityAttributes));
1616 file_handle.fd = fd;
1617 file_handle.fileaccess=fileaccess;
1618 file_handle.sharemode=sharemode;
1619 file_handle.attrs=attrs;
1621 #ifdef HAVE_POSIX_FADVISE
1622 if (attrs & FILE_FLAG_SEQUENTIAL_SCAN)
1623 posix_fadvise (fd, 0, 0, POSIX_FADV_SEQUENTIAL);
1624 if (attrs & FILE_FLAG_RANDOM_ACCESS)
1625 posix_fadvise (fd, 0, 0, POSIX_FADV_RANDOM);
1629 #define S_ISFIFO(m) ((m & S_IFIFO) != 0)
1631 if (S_ISFIFO (statbuf.st_mode)) {
1632 handle_type = WAPI_HANDLE_PIPE;
1633 } else if (S_ISCHR (statbuf.st_mode)) {
1634 handle_type = WAPI_HANDLE_CONSOLE;
1636 handle_type = WAPI_HANDLE_FILE;
1639 handle = _wapi_handle_new_fd (handle_type, fd, &file_handle);
1640 if (handle == _WAPI_HANDLE_INVALID) {
1641 g_warning ("%s: error creating file handle", __func__);
1645 SetLastError (ERROR_GEN_FAILURE);
1646 return(INVALID_HANDLE_VALUE);
1649 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: returning handle %p", __func__, handle);
1656 * @name: a pointer to a NULL-terminated unicode string, that names
1657 * the file to be deleted.
1659 * Deletes file @name.
1661 * Return value: %TRUE on success, %FALSE otherwise.
1663 gboolean DeleteFile(const gunichar2 *name)
1667 gboolean ret = FALSE;
1670 struct stat statbuf;
1671 struct _WapiFileShare *shareinfo;
1675 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1677 SetLastError (ERROR_INVALID_NAME);
1681 filename=mono_unicode_to_external(name);
1682 if(filename==NULL) {
1683 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
1685 SetLastError (ERROR_INVALID_NAME);
1689 attrs = GetFileAttributes (name);
1690 if (attrs == INVALID_FILE_ATTRIBUTES) {
1691 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file attributes error", __func__);
1692 /* Error set by GetFileAttributes() */
1698 /* Check to make sure sharing allows us to open the file for
1699 * writing. See bug 323389.
1701 * Do the checks that don't need an open file descriptor, for
1702 * simplicity's sake. If we really have to do the full checks
1703 * then we can implement that later.
1705 if (_wapi_stat (filename, &statbuf) < 0) {
1706 _wapi_set_last_path_error_from_errno (NULL, filename);
1711 if (share_allows_open (&statbuf, 0, GENERIC_WRITE,
1712 &shareinfo) == FALSE) {
1713 SetLastError (ERROR_SHARING_VIOLATION);
1718 _wapi_handle_share_release (shareinfo);
1721 retval = _wapi_unlink (filename);
1724 _wapi_set_last_path_error_from_errno (NULL, filename);
1736 * @name: a pointer to a NULL-terminated unicode string, that names
1737 * the file to be moved.
1738 * @dest_name: a pointer to a NULL-terminated unicode string, that is the
1739 * new name for the file.
1741 * Renames file @name to @dest_name.
1742 * MoveFile sets ERROR_ALREADY_EXISTS if the destination exists, except
1743 * when it is the same file as the source. In that case it silently succeeds.
1745 * Return value: %TRUE on success, %FALSE otherwise.
1747 gboolean MoveFile (const gunichar2 *name, const gunichar2 *dest_name)
1749 gchar *utf8_name, *utf8_dest_name;
1750 int result, errno_copy;
1751 struct stat stat_src, stat_dest;
1752 gboolean ret = FALSE;
1753 struct _WapiFileShare *shareinfo;
1756 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1758 SetLastError (ERROR_INVALID_NAME);
1762 utf8_name = mono_unicode_to_external (name);
1763 if (utf8_name == NULL) {
1764 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
1766 SetLastError (ERROR_INVALID_NAME);
1770 if(dest_name==NULL) {
1771 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1774 SetLastError (ERROR_INVALID_NAME);
1778 utf8_dest_name = mono_unicode_to_external (dest_name);
1779 if (utf8_dest_name == NULL) {
1780 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
1783 SetLastError (ERROR_INVALID_NAME);
1788 * In C# land we check for the existence of src, but not for dest.
1789 * We check it here and return the failure if dest exists and is not
1790 * the same file as src.
1792 if (_wapi_stat (utf8_name, &stat_src) < 0) {
1793 if (errno != ENOENT || _wapi_lstat (utf8_name, &stat_src) < 0) {
1794 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
1796 g_free (utf8_dest_name);
1801 if (!_wapi_stat (utf8_dest_name, &stat_dest)) {
1802 if (stat_dest.st_dev != stat_src.st_dev ||
1803 stat_dest.st_ino != stat_src.st_ino) {
1805 g_free (utf8_dest_name);
1806 SetLastError (ERROR_ALREADY_EXISTS);
1811 /* Check to make that we have delete sharing permission.
1812 * See https://bugzilla.xamarin.com/show_bug.cgi?id=17009
1814 * Do the checks that don't need an open file descriptor, for
1815 * simplicity's sake. If we really have to do the full checks
1816 * then we can implement that later.
1818 if (share_allows_delete (&stat_src, &shareinfo) == FALSE) {
1819 SetLastError (ERROR_SHARING_VIOLATION);
1823 _wapi_handle_share_release (shareinfo);
1825 result = _wapi_rename (utf8_name, utf8_dest_name);
1829 switch(errno_copy) {
1831 SetLastError (ERROR_ALREADY_EXISTS);
1835 /* Ignore here, it is dealt with below */
1839 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
1844 g_free (utf8_dest_name);
1846 if (result != 0 && errno_copy == EXDEV) {
1847 if (S_ISDIR (stat_src.st_mode)) {
1848 SetLastError (ERROR_NOT_SAME_DEVICE);
1851 /* Try a copy to the new location, and delete the source */
1852 if (CopyFile (name, dest_name, TRUE)==FALSE) {
1853 /* CopyFile will set the error */
1857 return(DeleteFile (name));
1868 write_file (int src_fd, int dest_fd, struct stat *st_src, gboolean report_errors)
1872 int buf_size = st_src->st_blksize;
1874 buf_size = buf_size < 8192 ? 8192 : (buf_size > 65536 ? 65536 : buf_size);
1875 buf = (char *) malloc (buf_size);
1878 remain = read (src_fd, buf, buf_size);
1880 if (errno == EINTR && !_wapi_thread_cur_apc_pending ())
1884 _wapi_set_last_error_from_errno ();
1894 while (remain > 0) {
1895 if ((n = write (dest_fd, wbuf, remain)) < 0) {
1896 if (errno == EINTR && !_wapi_thread_cur_apc_pending ())
1900 _wapi_set_last_error_from_errno ();
1901 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write failed.", __func__);
1917 * @name: a pointer to a NULL-terminated unicode string, that names
1918 * the file to be copied.
1919 * @dest_name: a pointer to a NULL-terminated unicode string, that is the
1920 * new name for the file.
1921 * @fail_if_exists: if TRUE and dest_name exists, the copy will fail.
1923 * Copies file @name to @dest_name
1925 * Return value: %TRUE on success, %FALSE otherwise.
1927 gboolean CopyFile (const gunichar2 *name, const gunichar2 *dest_name,
1928 gboolean fail_if_exists)
1930 gchar *utf8_src, *utf8_dest;
1931 int src_fd, dest_fd;
1932 struct stat st, dest_st;
1933 struct utimbuf dest_time;
1934 gboolean ret = TRUE;
1938 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
1940 SetLastError (ERROR_INVALID_NAME);
1944 utf8_src = mono_unicode_to_external (name);
1945 if (utf8_src == NULL) {
1946 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of source returned NULL",
1949 SetLastError (ERROR_INVALID_PARAMETER);
1953 if(dest_name==NULL) {
1954 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: dest is NULL", __func__);
1957 SetLastError (ERROR_INVALID_NAME);
1961 utf8_dest = mono_unicode_to_external (dest_name);
1962 if (utf8_dest == NULL) {
1963 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of dest returned NULL",
1966 SetLastError (ERROR_INVALID_PARAMETER);
1973 src_fd = _wapi_open (utf8_src, O_RDONLY, 0);
1975 _wapi_set_last_path_error_from_errno (NULL, utf8_src);
1983 if (fstat (src_fd, &st) < 0) {
1984 _wapi_set_last_error_from_errno ();
1993 /* Before trying to open/create the dest, we need to report a 'file busy'
1994 * error if src and dest are actually the same file. We do the check here to take
1995 * advantage of the IOMAP capability */
1996 if (!_wapi_stat (utf8_dest, &dest_st) && st.st_dev == dest_st.st_dev &&
1997 st.st_ino == dest_st.st_ino) {
2003 SetLastError (ERROR_SHARING_VIOLATION);
2007 if (fail_if_exists) {
2008 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_EXCL, st.st_mode);
2010 /* FIXME: it kinda sucks that this code path potentially scans
2011 * the directory twice due to the weird SetLastError()
2013 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_TRUNC, st.st_mode);
2015 /* The file does not exist, try creating it */
2016 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_TRUNC, st.st_mode);
2018 /* Apparently this error is set if we
2019 * overwrite the dest file
2021 SetLastError (ERROR_ALREADY_EXISTS);
2025 _wapi_set_last_error_from_errno ();
2034 if (!write_file (src_fd, dest_fd, &st, TRUE))
2040 dest_time.modtime = st.st_mtime;
2041 dest_time.actime = st.st_atime;
2042 ret_utime = utime (utf8_dest, &dest_time);
2043 if (ret_utime == -1)
2044 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file [%s] utime failed: %s", __func__, utf8_dest, strerror(errno));
2053 convert_arg_to_utf8 (const gunichar2 *arg, const gchar *arg_name)
2058 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: %s is NULL", __func__, arg_name);
2059 SetLastError (ERROR_INVALID_NAME);
2063 utf8_ret = mono_unicode_to_external (arg);
2064 if (utf8_ret == NULL) {
2065 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of %s returned NULL",
2066 __func__, arg_name);
2067 SetLastError (ERROR_INVALID_PARAMETER);
2075 ReplaceFile (const gunichar2 *replacedFileName, const gunichar2 *replacementFileName,
2076 const gunichar2 *backupFileName, guint32 replaceFlags,
2077 gpointer exclude, gpointer reserved)
2079 int result, backup_fd = -1,replaced_fd = -1;
2080 gchar *utf8_replacedFileName, *utf8_replacementFileName = NULL, *utf8_backupFileName = NULL;
2081 struct stat stBackup;
2082 gboolean ret = FALSE;
2084 if (!(utf8_replacedFileName = convert_arg_to_utf8 (replacedFileName, "replacedFileName")))
2086 if (!(utf8_replacementFileName = convert_arg_to_utf8 (replacementFileName, "replacementFileName")))
2087 goto replace_cleanup;
2088 if (backupFileName != NULL) {
2089 if (!(utf8_backupFileName = convert_arg_to_utf8 (backupFileName, "backupFileName")))
2090 goto replace_cleanup;
2093 if (utf8_backupFileName) {
2094 // Open the backup file for read so we can restore the file if an error occurs.
2095 backup_fd = _wapi_open (utf8_backupFileName, O_RDONLY, 0);
2096 result = _wapi_rename (utf8_replacedFileName, utf8_backupFileName);
2098 goto replace_cleanup;
2101 result = _wapi_rename (utf8_replacementFileName, utf8_replacedFileName);
2103 _wapi_set_last_path_error_from_errno (NULL, utf8_replacementFileName);
2104 _wapi_rename (utf8_backupFileName, utf8_replacedFileName);
2105 if (backup_fd != -1 && !fstat (backup_fd, &stBackup)) {
2106 replaced_fd = _wapi_open (utf8_backupFileName, O_WRONLY | O_CREAT | O_TRUNC,
2109 if (replaced_fd == -1)
2110 goto replace_cleanup;
2112 write_file (backup_fd, replaced_fd, &stBackup, FALSE);
2115 goto replace_cleanup;
2121 g_free (utf8_replacedFileName);
2122 g_free (utf8_replacementFileName);
2123 g_free (utf8_backupFileName);
2124 if (backup_fd != -1)
2126 if (replaced_fd != -1)
2127 close (replaced_fd);
2133 * @stdhandle: specifies the file descriptor
2135 * Returns a handle for stdin, stdout, or stderr. Always returns the
2136 * same handle for the same @stdhandle.
2138 * Return value: the handle, or %INVALID_HANDLE_VALUE on error
2141 static mono_mutex_t stdhandle_mutex;
2143 gpointer GetStdHandle(WapiStdHandle stdhandle)
2145 struct _WapiHandle_file *file_handle;
2152 case STD_INPUT_HANDLE:
2157 case STD_OUTPUT_HANDLE:
2162 case STD_ERROR_HANDLE:
2168 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unknown standard handle type", __func__);
2170 SetLastError (ERROR_INVALID_PARAMETER);
2171 return(INVALID_HANDLE_VALUE);
2174 handle = GINT_TO_POINTER (fd);
2176 thr_ret = mono_os_mutex_lock (&stdhandle_mutex);
2177 g_assert (thr_ret == 0);
2179 ok = _wapi_lookup_handle (handle, WAPI_HANDLE_CONSOLE,
2180 (gpointer *)&file_handle);
2182 /* Need to create this console handle */
2183 handle = _wapi_stdhandle_create (fd, name);
2185 if (handle == INVALID_HANDLE_VALUE) {
2186 SetLastError (ERROR_NO_MORE_FILES);
2190 /* Add a reference to this handle */
2191 _wapi_handle_ref (handle);
2195 thr_ret = mono_os_mutex_unlock (&stdhandle_mutex);
2196 g_assert (thr_ret == 0);
2203 * @handle: The file handle to read from. The handle must have
2204 * %GENERIC_READ access.
2205 * @buffer: The buffer to store read data in
2206 * @numbytes: The maximum number of bytes to read
2207 * @bytesread: The actual number of bytes read is stored here. This
2208 * value can be zero if the handle is positioned at the end of the
2210 * @overlapped: points to a required %WapiOverlapped structure if
2211 * @handle has the %FILE_FLAG_OVERLAPPED option set, should be NULL
2214 * If @handle does not have the %FILE_FLAG_OVERLAPPED option set, this
2215 * function reads up to @numbytes bytes from the file from the current
2216 * file position, and stores them in @buffer. If there are not enough
2217 * bytes left in the file, just the amount available will be read.
2218 * The actual number of bytes read is stored in @bytesread.
2220 * If @handle has the %FILE_FLAG_OVERLAPPED option set, the current
2221 * file position is ignored and the read position is taken from data
2222 * in the @overlapped structure.
2224 * Return value: %TRUE if the read succeeds (even if no bytes were
2225 * read due to an attempt to read past the end of the file), %FALSE on
2228 gboolean ReadFile(gpointer handle, gpointer buffer, guint32 numbytes,
2229 guint32 *bytesread, WapiOverlapped *overlapped)
2231 WapiHandleType type;
2233 type = _wapi_handle_type (handle);
2235 if(io_ops[type].readfile==NULL) {
2236 SetLastError (ERROR_INVALID_HANDLE);
2240 return(io_ops[type].readfile (handle, buffer, numbytes, bytesread,
2246 * @handle: The file handle to write to. The handle must have
2247 * %GENERIC_WRITE access.
2248 * @buffer: The buffer to read data from.
2249 * @numbytes: The maximum number of bytes to write.
2250 * @byteswritten: The actual number of bytes written is stored here.
2251 * If the handle is positioned at the file end, the length of the file
2252 * is extended. This parameter may be %NULL.
2253 * @overlapped: points to a required %WapiOverlapped structure if
2254 * @handle has the %FILE_FLAG_OVERLAPPED option set, should be NULL
2257 * If @handle does not have the %FILE_FLAG_OVERLAPPED option set, this
2258 * function writes up to @numbytes bytes from @buffer to the file at
2259 * the current file position. If @handle is positioned at the end of
2260 * the file, the file is extended. The actual number of bytes written
2261 * is stored in @byteswritten.
2263 * If @handle has the %FILE_FLAG_OVERLAPPED option set, the current
2264 * file position is ignored and the write position is taken from data
2265 * in the @overlapped structure.
2267 * Return value: %TRUE if the write succeeds, %FALSE on error.
2269 gboolean WriteFile(gpointer handle, gconstpointer buffer, guint32 numbytes,
2270 guint32 *byteswritten, WapiOverlapped *overlapped)
2272 WapiHandleType type;
2274 type = _wapi_handle_type (handle);
2276 if(io_ops[type].writefile==NULL) {
2277 SetLastError (ERROR_INVALID_HANDLE);
2281 return(io_ops[type].writefile (handle, buffer, numbytes, byteswritten,
2287 * @handle: Handle to open file. The handle must have
2288 * %GENERIC_WRITE access.
2290 * Flushes buffers of the file and causes all unwritten data to
2293 * Return value: %TRUE on success, %FALSE otherwise.
2295 gboolean FlushFileBuffers(gpointer handle)
2297 WapiHandleType type;
2299 type = _wapi_handle_type (handle);
2301 if(io_ops[type].flushfile==NULL) {
2302 SetLastError (ERROR_INVALID_HANDLE);
2306 return(io_ops[type].flushfile (handle));
2311 * @handle: The file handle to set. The handle must have
2312 * %GENERIC_WRITE access.
2314 * Moves the end-of-file position to the current position of the file
2315 * pointer. This function is used to truncate or extend a file.
2317 * Return value: %TRUE on success, %FALSE otherwise.
2319 gboolean SetEndOfFile(gpointer handle)
2321 WapiHandleType type;
2323 type = _wapi_handle_type (handle);
2325 if (io_ops[type].setendoffile == NULL) {
2326 SetLastError (ERROR_INVALID_HANDLE);
2330 return(io_ops[type].setendoffile (handle));
2335 * @handle: The file handle to set. The handle must have
2336 * %GENERIC_READ or %GENERIC_WRITE access.
2337 * @movedistance: Low 32 bits of a signed value that specifies the
2338 * number of bytes to move the file pointer.
2339 * @highmovedistance: Pointer to the high 32 bits of a signed value
2340 * that specifies the number of bytes to move the file pointer, or
2342 * @method: The starting point for the file pointer move.
2344 * Sets the file pointer of an open file.
2346 * The distance to move the file pointer is calculated from
2347 * @movedistance and @highmovedistance: If @highmovedistance is %NULL,
2348 * @movedistance is the 32-bit signed value; otherwise, @movedistance
2349 * is the low 32 bits and @highmovedistance a pointer to the high 32
2350 * bits of a 64 bit signed value. A positive distance moves the file
2351 * pointer forward from the position specified by @method; a negative
2352 * distance moves the file pointer backward.
2354 * If the library is compiled without large file support,
2355 * @highmovedistance is ignored and its value is set to zero on a
2356 * successful return.
2358 * Return value: On success, the low 32 bits of the new file pointer.
2359 * If @highmovedistance is not %NULL, the high 32 bits of the new file
2360 * pointer are stored there. On failure, %INVALID_SET_FILE_POINTER.
2362 guint32 SetFilePointer(gpointer handle, gint32 movedistance,
2363 gint32 *highmovedistance, WapiSeekMethod method)
2365 WapiHandleType type;
2367 type = _wapi_handle_type (handle);
2369 if (io_ops[type].seek == NULL) {
2370 SetLastError (ERROR_INVALID_HANDLE);
2371 return(INVALID_SET_FILE_POINTER);
2374 return(io_ops[type].seek (handle, movedistance, highmovedistance,
2380 * @handle: The file handle to test.
2382 * Finds the type of file @handle.
2384 * Return value: %FILE_TYPE_UNKNOWN - the type of the file @handle is
2385 * unknown. %FILE_TYPE_DISK - @handle is a disk file.
2386 * %FILE_TYPE_CHAR - @handle is a character device, such as a console.
2387 * %FILE_TYPE_PIPE - @handle is a named or anonymous pipe.
2389 WapiFileType GetFileType(gpointer handle)
2391 WapiHandleType type;
2393 if (!_WAPI_PRIVATE_HAVE_SLOT (handle)) {
2394 SetLastError (ERROR_INVALID_HANDLE);
2395 return(FILE_TYPE_UNKNOWN);
2398 type = _wapi_handle_type (handle);
2400 if (io_ops[type].getfiletype == NULL) {
2401 SetLastError (ERROR_INVALID_HANDLE);
2402 return(FILE_TYPE_UNKNOWN);
2405 return(io_ops[type].getfiletype ());
2410 * @handle: The file handle to query. The handle must have
2411 * %GENERIC_READ or %GENERIC_WRITE access.
2412 * @highsize: If non-%NULL, the high 32 bits of the file size are
2415 * Retrieves the size of the file @handle.
2417 * If the library is compiled without large file support, @highsize
2418 * has its value set to zero on a successful return.
2420 * Return value: On success, the low 32 bits of the file size. If
2421 * @highsize is non-%NULL then the high 32 bits of the file size are
2422 * stored here. On failure %INVALID_FILE_SIZE is returned.
2424 guint32 GetFileSize(gpointer handle, guint32 *highsize)
2426 WapiHandleType type;
2428 type = _wapi_handle_type (handle);
2430 if (io_ops[type].getfilesize == NULL) {
2431 SetLastError (ERROR_INVALID_HANDLE);
2432 return(INVALID_FILE_SIZE);
2435 return(io_ops[type].getfilesize (handle, highsize));
2440 * @handle: The file handle to query. The handle must have
2441 * %GENERIC_READ access.
2442 * @create_time: Points to a %WapiFileTime structure to receive the
2443 * number of ticks since the epoch that file was created. May be
2445 * @last_access: Points to a %WapiFileTime structure to receive the
2446 * number of ticks since the epoch when file was last accessed. May be
2448 * @last_write: Points to a %WapiFileTime structure to receive the
2449 * number of ticks since the epoch when file was last written to. May
2452 * Finds the number of ticks since the epoch that the file referenced
2453 * by @handle was created, last accessed and last modified. A tick is
2454 * a 100 nanosecond interval. The epoch is Midnight, January 1 1601
2457 * Create time isn't recorded on POSIX file systems or reported by
2458 * stat(2), so that time is guessed by returning the oldest of the
2461 * Return value: %TRUE on success, %FALSE otherwise.
2463 gboolean GetFileTime(gpointer handle, WapiFileTime *create_time,
2464 WapiFileTime *last_access, WapiFileTime *last_write)
2466 WapiHandleType type;
2468 type = _wapi_handle_type (handle);
2470 if (io_ops[type].getfiletime == NULL) {
2471 SetLastError (ERROR_INVALID_HANDLE);
2475 return(io_ops[type].getfiletime (handle, create_time, last_access,
2481 * @handle: The file handle to set. The handle must have
2482 * %GENERIC_WRITE access.
2483 * @create_time: Points to a %WapiFileTime structure that contains the
2484 * number of ticks since the epoch that the file was created. May be
2486 * @last_access: Points to a %WapiFileTime structure that contains the
2487 * number of ticks since the epoch when the file was last accessed.
2489 * @last_write: Points to a %WapiFileTime structure that contains the
2490 * number of ticks since the epoch when the file was last written to.
2493 * Sets the number of ticks since the epoch that the file referenced
2494 * by @handle was created, last accessed or last modified. A tick is
2495 * a 100 nanosecond interval. The epoch is Midnight, January 1 1601
2498 * Create time isn't recorded on POSIX file systems, and is ignored.
2500 * Return value: %TRUE on success, %FALSE otherwise.
2502 gboolean SetFileTime(gpointer handle, const WapiFileTime *create_time,
2503 const WapiFileTime *last_access,
2504 const WapiFileTime *last_write)
2506 WapiHandleType type;
2508 type = _wapi_handle_type (handle);
2510 if (io_ops[type].setfiletime == NULL) {
2511 SetLastError (ERROR_INVALID_HANDLE);
2515 return(io_ops[type].setfiletime (handle, create_time, last_access,
2519 /* A tick is a 100-nanosecond interval. File time epoch is Midnight,
2520 * January 1 1601 GMT
2523 #define TICKS_PER_MILLISECOND 10000L
2524 #define TICKS_PER_SECOND 10000000L
2525 #define TICKS_PER_MINUTE 600000000L
2526 #define TICKS_PER_HOUR 36000000000LL
2527 #define TICKS_PER_DAY 864000000000LL
2529 #define isleap(y) ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0))
2531 static const guint16 mon_yday[2][13]={
2532 {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
2533 {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366},
2537 * FileTimeToSystemTime:
2538 * @file_time: Points to a %WapiFileTime structure that contains the
2539 * number of ticks to convert.
2540 * @system_time: Points to a %WapiSystemTime structure to receive the
2543 * Converts a tick count into broken-out time values.
2545 * Return value: %TRUE on success, %FALSE otherwise.
2547 gboolean FileTimeToSystemTime(const WapiFileTime *file_time,
2548 WapiSystemTime *system_time)
2550 gint64 file_ticks, totaldays, rem, y;
2553 if(system_time==NULL) {
2554 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: system_time NULL", __func__);
2556 SetLastError (ERROR_INVALID_PARAMETER);
2560 file_ticks=((gint64)file_time->dwHighDateTime << 32) +
2561 file_time->dwLowDateTime;
2563 /* Really compares if file_ticks>=0x8000000000000000
2564 * (LLONG_MAX+1) but we're working with a signed value for the
2565 * year and day calculation to work later
2568 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file_time too big", __func__);
2570 SetLastError (ERROR_INVALID_PARAMETER);
2574 totaldays=(file_ticks / TICKS_PER_DAY);
2575 rem = file_ticks % TICKS_PER_DAY;
2576 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld rem: %lld", __func__, totaldays, rem);
2578 system_time->wHour=rem/TICKS_PER_HOUR;
2579 rem %= TICKS_PER_HOUR;
2580 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Hour: %d rem: %lld", __func__, system_time->wHour, rem);
2582 system_time->wMinute = rem / TICKS_PER_MINUTE;
2583 rem %= TICKS_PER_MINUTE;
2584 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Minute: %d rem: %lld", __func__, system_time->wMinute,
2587 system_time->wSecond = rem / TICKS_PER_SECOND;
2588 rem %= TICKS_PER_SECOND;
2589 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Second: %d rem: %lld", __func__, system_time->wSecond,
2592 system_time->wMilliseconds = rem / TICKS_PER_MILLISECOND;
2593 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Milliseconds: %d", __func__,
2594 system_time->wMilliseconds);
2596 /* January 1, 1601 was a Monday, according to Emacs calendar */
2597 system_time->wDayOfWeek = ((1 + totaldays) % 7) + 1;
2598 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Day of week: %d", __func__, system_time->wDayOfWeek);
2600 /* This algorithm to find year and month given days from epoch
2605 #define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
2606 #define LEAPS_THRU_END_OF(y) (DIV(y, 4) - DIV (y, 100) + DIV (y, 400))
2608 while(totaldays < 0 || totaldays >= (isleap(y)?366:365)) {
2609 /* Guess a corrected year, assuming 365 days per year */
2610 gint64 yg = y + totaldays / 365 - (totaldays % 365 < 0);
2611 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld yg: %lld y: %lld", __func__,
2614 g_message("%s: LEAPS(yg): %lld LEAPS(y): %lld", __func__,
2615 LEAPS_THRU_END_OF(yg-1), LEAPS_THRU_END_OF(y-1));
2617 /* Adjust days and y to match the guessed year. */
2618 totaldays -= ((yg - y) * 365
2619 + LEAPS_THRU_END_OF (yg - 1)
2620 - LEAPS_THRU_END_OF (y - 1));
2621 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld", __func__, totaldays);
2623 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: y: %lld", __func__, y);
2626 system_time->wYear = y;
2627 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Year: %d", __func__, system_time->wYear);
2629 ip = mon_yday[isleap(y)];
2631 for(y=11; totaldays < ip[y]; --y) {
2635 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld", __func__, totaldays);
2637 system_time->wMonth = y + 1;
2638 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Month: %d", __func__, system_time->wMonth);
2640 system_time->wDay = totaldays + 1;
2641 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Day: %d", __func__, system_time->wDay);
2646 gpointer FindFirstFile (const gunichar2 *pattern, WapiFindData *find_data)
2648 struct _WapiHandle_find find_handle = {0};
2650 gchar *utf8_pattern = NULL, *dir_part, *entry_part;
2653 if (pattern == NULL) {
2654 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: pattern is NULL", __func__);
2656 SetLastError (ERROR_PATH_NOT_FOUND);
2657 return(INVALID_HANDLE_VALUE);
2660 utf8_pattern = mono_unicode_to_external (pattern);
2661 if (utf8_pattern == NULL) {
2662 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
2664 SetLastError (ERROR_INVALID_NAME);
2665 return(INVALID_HANDLE_VALUE);
2668 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: looking for [%s]", __func__, utf8_pattern);
2670 /* Figure out which bit of the pattern is the directory */
2671 dir_part = _wapi_dirname (utf8_pattern);
2672 entry_part = _wapi_basename (utf8_pattern);
2675 /* Don't do this check for now, it breaks if directories
2676 * really do have metachars in their names (see bug 58116).
2677 * FIXME: Figure out a better solution to keep some checks...
2679 if (strchr (dir_part, '*') || strchr (dir_part, '?')) {
2680 SetLastError (ERROR_INVALID_NAME);
2682 g_free (entry_part);
2683 g_free (utf8_pattern);
2684 return(INVALID_HANDLE_VALUE);
2688 /* The pattern can specify a directory or a set of files.
2690 * The pattern can have wildcard characters ? and *, but only
2691 * in the section after the last directory delimiter. (Return
2692 * ERROR_INVALID_NAME if there are wildcards in earlier path
2693 * sections.) "*" has the usual 0-or-more chars meaning. "?"
2694 * means "match one character", "??" seems to mean "match one
2695 * or two characters", "???" seems to mean "match one, two or
2696 * three characters", etc. Windows will also try and match
2697 * the mangled "short name" of files, so 8 character patterns
2698 * with wildcards will show some surprising results.
2700 * All the written documentation I can find says that '?'
2701 * should only match one character, and doesn't mention '??',
2702 * '???' etc. I'm going to assume that the strict behaviour
2703 * (ie '???' means three and only three characters) is the
2704 * correct one, because that lets me use fnmatch(3) rather
2705 * than mess around with regexes.
2708 find_handle.namelist = NULL;
2709 result = _wapi_io_scandir (dir_part, entry_part,
2710 &find_handle.namelist);
2713 /* No files, which windows seems to call
2716 SetLastError (ERROR_FILE_NOT_FOUND);
2717 g_free (utf8_pattern);
2718 g_free (entry_part);
2720 return (INVALID_HANDLE_VALUE);
2724 _wapi_set_last_path_error_from_errno (dir_part, NULL);
2725 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: scandir error: %s", __func__, g_strerror (errno));
2726 g_free (utf8_pattern);
2727 g_free (entry_part);
2729 return (INVALID_HANDLE_VALUE);
2732 g_free (utf8_pattern);
2733 g_free (entry_part);
2735 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Got %d matches", __func__, result);
2737 find_handle.dir_part = dir_part;
2738 find_handle.num = result;
2739 find_handle.count = 0;
2741 handle = _wapi_handle_new (WAPI_HANDLE_FIND, &find_handle);
2742 if (handle == _WAPI_HANDLE_INVALID) {
2743 g_warning ("%s: error creating find handle", __func__);
2745 g_free (entry_part);
2746 g_free (utf8_pattern);
2747 SetLastError (ERROR_GEN_FAILURE);
2749 return(INVALID_HANDLE_VALUE);
2752 if (handle != INVALID_HANDLE_VALUE &&
2753 !FindNextFile (handle, find_data)) {
2755 SetLastError (ERROR_NO_MORE_FILES);
2756 handle = INVALID_HANDLE_VALUE;
2762 gboolean FindNextFile (gpointer handle, WapiFindData *find_data)
2764 struct _WapiHandle_find *find_handle;
2766 struct stat buf, linkbuf;
2769 gchar *utf8_filename, *utf8_basename;
2770 gunichar2 *utf16_basename;
2774 gboolean ret = FALSE;
2776 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FIND,
2777 (gpointer *)&find_handle);
2779 g_warning ("%s: error looking up find handle %p", __func__,
2781 SetLastError (ERROR_INVALID_HANDLE);
2785 thr_ret = _wapi_handle_lock_handle (handle);
2786 g_assert (thr_ret == 0);
2789 if (find_handle->count >= find_handle->num) {
2790 SetLastError (ERROR_NO_MORE_FILES);
2794 /* stat next match */
2796 filename = g_build_filename (find_handle->dir_part, find_handle->namelist[find_handle->count ++], NULL);
2798 result = _wapi_stat (filename, &buf);
2799 if (result == -1 && errno == ENOENT) {
2800 /* Might be a dangling symlink */
2801 result = _wapi_lstat (filename, &buf);
2805 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: stat failed: %s", __func__, filename);
2811 #ifndef __native_client__
2812 result = _wapi_lstat (filename, &linkbuf);
2814 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lstat failed: %s", __func__, filename);
2821 utf8_filename = mono_utf8_from_external (filename);
2822 if (utf8_filename == NULL) {
2823 /* We couldn't turn this filename into utf8 (eg the
2824 * encoding of the name wasn't convertible), so just
2827 g_warning ("%s: Bad encoding for '%s'\nConsider using MONO_EXTERNAL_ENCODINGS\n", __func__, filename);
2834 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Found [%s]", __func__, utf8_filename);
2836 /* fill data block */
2838 if (buf.st_mtime < buf.st_ctime)
2839 create_time = buf.st_mtime;
2841 create_time = buf.st_ctime;
2843 #ifdef __native_client__
2844 find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, NULL);
2846 find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, &linkbuf);
2849 _wapi_time_t_to_filetime (create_time, &find_data->ftCreationTime);
2850 _wapi_time_t_to_filetime (buf.st_atime, &find_data->ftLastAccessTime);
2851 _wapi_time_t_to_filetime (buf.st_mtime, &find_data->ftLastWriteTime);
2853 if (find_data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
2854 find_data->nFileSizeHigh = 0;
2855 find_data->nFileSizeLow = 0;
2857 find_data->nFileSizeHigh = buf.st_size >> 32;
2858 find_data->nFileSizeLow = buf.st_size & 0xFFFFFFFF;
2861 find_data->dwReserved0 = 0;
2862 find_data->dwReserved1 = 0;
2864 utf8_basename = _wapi_basename (utf8_filename);
2865 utf16_basename = g_utf8_to_utf16 (utf8_basename, -1, NULL, &bytes,
2867 if(utf16_basename==NULL) {
2868 g_free (utf8_basename);
2869 g_free (utf8_filename);
2874 /* utf16 is 2 * utf8 */
2877 memset (find_data->cFileName, '\0', (MAX_PATH*2));
2879 /* Truncating a utf16 string like this might leave the last
2882 memcpy (find_data->cFileName, utf16_basename,
2883 bytes<(MAX_PATH*2)-2?bytes:(MAX_PATH*2)-2);
2885 find_data->cAlternateFileName [0] = 0; /* not used */
2887 g_free (utf8_basename);
2888 g_free (utf8_filename);
2889 g_free (utf16_basename);
2892 thr_ret = _wapi_handle_unlock_handle (handle);
2893 g_assert (thr_ret == 0);
2900 * @wapi_handle: the find handle to close.
2902 * Closes find handle @wapi_handle
2904 * Return value: %TRUE on success, %FALSE otherwise.
2906 gboolean FindClose (gpointer handle)
2908 struct _WapiHandle_find *find_handle;
2912 if (handle == NULL) {
2913 SetLastError (ERROR_INVALID_HANDLE);
2917 ok=_wapi_lookup_handle (handle, WAPI_HANDLE_FIND,
2918 (gpointer *)&find_handle);
2920 g_warning ("%s: error looking up find handle %p", __func__,
2922 SetLastError (ERROR_INVALID_HANDLE);
2926 thr_ret = _wapi_handle_lock_handle (handle);
2927 g_assert (thr_ret == 0);
2929 g_strfreev (find_handle->namelist);
2930 g_free (find_handle->dir_part);
2932 thr_ret = _wapi_handle_unlock_handle (handle);
2933 g_assert (thr_ret == 0);
2935 _wapi_handle_unref (handle);
2942 * @name: a pointer to a NULL-terminated unicode string, that names
2943 * the directory to be created.
2944 * @security: ignored for now
2946 * Creates directory @name
2948 * Return value: %TRUE on success, %FALSE otherwise.
2950 gboolean CreateDirectory (const gunichar2 *name,
2951 WapiSecurityAttributes *security)
2957 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
2959 SetLastError (ERROR_INVALID_NAME);
2963 utf8_name = mono_unicode_to_external (name);
2964 if (utf8_name == NULL) {
2965 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
2967 SetLastError (ERROR_INVALID_NAME);
2971 result = _wapi_mkdir (utf8_name, 0777);
2978 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
2985 * @name: a pointer to a NULL-terminated unicode string, that names
2986 * the directory to be removed.
2988 * Removes directory @name
2990 * Return value: %TRUE on success, %FALSE otherwise.
2992 gboolean RemoveDirectory (const gunichar2 *name)
2998 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3000 SetLastError (ERROR_INVALID_NAME);
3004 utf8_name = mono_unicode_to_external (name);
3005 if (utf8_name == NULL) {
3006 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3008 SetLastError (ERROR_INVALID_NAME);
3012 result = _wapi_rmdir (utf8_name);
3014 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3025 * GetFileAttributes:
3026 * @name: a pointer to a NULL-terminated unicode filename.
3028 * Gets the attributes for @name;
3030 * Return value: %INVALID_FILE_ATTRIBUTES on failure
3032 guint32 GetFileAttributes (const gunichar2 *name)
3035 struct stat buf, linkbuf;
3040 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3042 SetLastError (ERROR_INVALID_NAME);
3046 utf8_name = mono_unicode_to_external (name);
3047 if (utf8_name == NULL) {
3048 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3050 SetLastError (ERROR_INVALID_PARAMETER);
3051 return (INVALID_FILE_ATTRIBUTES);
3054 result = _wapi_stat (utf8_name, &buf);
3055 if (result == -1 && errno == ENOENT) {
3056 /* Might be a dangling symlink... */
3057 result = _wapi_lstat (utf8_name, &buf);
3061 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3063 return (INVALID_FILE_ATTRIBUTES);
3066 #ifndef __native_client__
3067 result = _wapi_lstat (utf8_name, &linkbuf);
3069 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3071 return (INVALID_FILE_ATTRIBUTES);
3075 #ifdef __native_client__
3076 ret = _wapi_stat_to_file_attributes (utf8_name, &buf, NULL);
3078 ret = _wapi_stat_to_file_attributes (utf8_name, &buf, &linkbuf);
3087 * GetFileAttributesEx:
3088 * @name: a pointer to a NULL-terminated unicode filename.
3089 * @level: must be GetFileExInfoStandard
3090 * @info: pointer to a WapiFileAttributesData structure
3092 * Gets attributes, size and filetimes for @name;
3094 * Return value: %TRUE on success, %FALSE on failure
3096 gboolean GetFileAttributesEx (const gunichar2 *name, WapiGetFileExInfoLevels level, gpointer info)
3099 WapiFileAttributesData *data;
3101 struct stat buf, linkbuf;
3105 if (level != GetFileExInfoStandard) {
3106 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: info level %d not supported.", __func__,
3109 SetLastError (ERROR_INVALID_PARAMETER);
3114 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3116 SetLastError (ERROR_INVALID_NAME);
3120 utf8_name = mono_unicode_to_external (name);
3121 if (utf8_name == NULL) {
3122 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3124 SetLastError (ERROR_INVALID_PARAMETER);
3128 result = _wapi_stat (utf8_name, &buf);
3129 if (result == -1 && errno == ENOENT) {
3130 /* Might be a dangling symlink... */
3131 result = _wapi_lstat (utf8_name, &buf);
3135 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3140 result = _wapi_lstat (utf8_name, &linkbuf);
3142 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3147 /* fill data block */
3149 data = (WapiFileAttributesData *)info;
3151 if (buf.st_mtime < buf.st_ctime)
3152 create_time = buf.st_mtime;
3154 create_time = buf.st_ctime;
3156 data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_name,
3162 _wapi_time_t_to_filetime (create_time, &data->ftCreationTime);
3163 _wapi_time_t_to_filetime (buf.st_atime, &data->ftLastAccessTime);
3164 _wapi_time_t_to_filetime (buf.st_mtime, &data->ftLastWriteTime);
3166 if (data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
3167 data->nFileSizeHigh = 0;
3168 data->nFileSizeLow = 0;
3171 data->nFileSizeHigh = buf.st_size >> 32;
3172 data->nFileSizeLow = buf.st_size & 0xFFFFFFFF;
3180 * @name: name of file
3181 * @attrs: attributes to set
3183 * Changes the attributes on a named file.
3185 * Return value: %TRUE on success, %FALSE on failure.
3187 extern gboolean SetFileAttributes (const gunichar2 *name, guint32 attrs)
3189 /* FIXME: think of something clever to do on unix */
3195 * Currently we only handle one *internal* case, with a value that is
3196 * not standard: 0x80000000, which means `set executable bit'
3200 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3202 SetLastError (ERROR_INVALID_NAME);
3206 utf8_name = mono_unicode_to_external (name);
3207 if (utf8_name == NULL) {
3208 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3210 SetLastError (ERROR_INVALID_NAME);
3214 result = _wapi_stat (utf8_name, &buf);
3215 if (result == -1 && errno == ENOENT) {
3216 /* Might be a dangling symlink... */
3217 result = _wapi_lstat (utf8_name, &buf);
3221 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3226 /* Contrary to the documentation, ms allows NORMAL to be
3227 * specified along with other attributes, so dont bother to
3228 * catch that case here.
3230 if (attrs & FILE_ATTRIBUTE_READONLY) {
3231 result = _wapi_chmod (utf8_name, buf.st_mode & ~(S_IWUSR | S_IWOTH | S_IWGRP));
3233 result = _wapi_chmod (utf8_name, buf.st_mode | S_IWUSR);
3236 /* Ignore the other attributes for now */
3238 if (attrs & 0x80000000){
3239 mode_t exec_mask = 0;
3241 if ((buf.st_mode & S_IRUSR) != 0)
3242 exec_mask |= S_IXUSR;
3244 if ((buf.st_mode & S_IRGRP) != 0)
3245 exec_mask |= S_IXGRP;
3247 if ((buf.st_mode & S_IROTH) != 0)
3248 exec_mask |= S_IXOTH;
3250 result = chmod (utf8_name, buf.st_mode | exec_mask);
3252 /* Don't bother to reset executable (might need to change this
3262 * GetCurrentDirectory
3263 * @length: size of the buffer
3264 * @buffer: pointer to buffer that recieves path
3266 * Retrieves the current directory for the current process.
3268 * Return value: number of characters in buffer on success, zero on failure
3270 extern guint32 GetCurrentDirectory (guint32 length, gunichar2 *buffer)
3272 gunichar2 *utf16_path;
3276 #ifdef __native_client__
3277 gchar *path = g_get_current_dir ();
3278 if (length < strlen(path) + 1 || path == NULL)
3280 memcpy (buffer, path, strlen(path) + 1);
3282 if (getcwd ((char*)buffer, length) == NULL) {
3283 if (errno == ERANGE) { /*buffer length is not big enough */
3284 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*/
3287 utf16_path = mono_unicode_from_external (path, &bytes);
3288 g_free (utf16_path);
3292 _wapi_set_last_error_from_errno ();
3297 utf16_path = mono_unicode_from_external ((gchar*)buffer, &bytes);
3298 count = (bytes/2)+1;
3299 g_assert (count <= length); /*getcwd must have failed before with ERANGE*/
3301 /* Add the terminator */
3302 memset (buffer, '\0', bytes+2);
3303 memcpy (buffer, utf16_path, bytes);
3305 g_free (utf16_path);
3311 * SetCurrentDirectory
3312 * @path: path to new directory
3314 * Changes the directory path for the current process.
3316 * Return value: %TRUE on success, %FALSE on failure.
3318 extern gboolean SetCurrentDirectory (const gunichar2 *path)
3324 SetLastError (ERROR_INVALID_PARAMETER);
3328 utf8_path = mono_unicode_to_external (path);
3329 if (_wapi_chdir (utf8_path) != 0) {
3330 _wapi_set_last_error_from_errno ();
3340 gboolean CreatePipe (gpointer *readpipe, gpointer *writepipe,
3341 WapiSecurityAttributes *security G_GNUC_UNUSED, guint32 size)
3343 struct _WapiHandle_file pipe_read_handle = {0};
3344 struct _WapiHandle_file pipe_write_handle = {0};
3345 gpointer read_handle;
3346 gpointer write_handle;
3350 mono_once (&io_ops_once, io_ops_init);
3352 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Creating pipe", __func__);
3356 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Error creating pipe: %s", __func__,
3359 _wapi_set_last_error_from_errno ();
3363 if (filedes[0] >= _wapi_fd_reserve ||
3364 filedes[1] >= _wapi_fd_reserve) {
3365 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: File descriptor is too big", __func__);
3367 SetLastError (ERROR_TOO_MANY_OPEN_FILES);
3375 /* filedes[0] is open for reading, filedes[1] for writing */
3377 pipe_read_handle.fd = filedes [0];
3378 pipe_read_handle.fileaccess = GENERIC_READ;
3379 read_handle = _wapi_handle_new_fd (WAPI_HANDLE_PIPE, filedes[0],
3381 if (read_handle == _WAPI_HANDLE_INVALID) {
3382 g_warning ("%s: error creating pipe read handle", __func__);
3385 SetLastError (ERROR_GEN_FAILURE);
3390 pipe_write_handle.fd = filedes [1];
3391 pipe_write_handle.fileaccess = GENERIC_WRITE;
3392 write_handle = _wapi_handle_new_fd (WAPI_HANDLE_PIPE, filedes[1],
3393 &pipe_write_handle);
3394 if (write_handle == _WAPI_HANDLE_INVALID) {
3395 g_warning ("%s: error creating pipe write handle", __func__);
3396 _wapi_handle_unref (read_handle);
3400 SetLastError (ERROR_GEN_FAILURE);
3405 *readpipe = read_handle;
3406 *writepipe = write_handle;
3408 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning pipe: read handle %p, write handle %p",
3409 __func__, read_handle, write_handle);
3414 #ifdef HAVE_GETFSSTAT
3415 /* Darwin has getfsstat */
3416 gint32 GetLogicalDriveStrings (guint32 len, gunichar2 *buf)
3418 struct statfs *stats;
3421 glong length, total = 0;
3423 n = getfsstat (NULL, 0, MNT_NOWAIT);
3426 size = n * sizeof (struct statfs);
3427 stats = (struct statfs *) g_malloc (size);
3430 if (getfsstat (stats, size, MNT_NOWAIT) == -1){
3434 for (i = 0; i < n; i++){
3435 dir = g_utf8_to_utf16 (stats [i].f_mntonname, -1, NULL, &length, NULL);
3436 if (total + length < len){
3437 memcpy (buf + total, dir, sizeof (gunichar2) * length);
3438 buf [total+length] = 0;
3441 total += length + 1;
3450 /* In-place octal sequence replacement */
3452 unescape_octal (gchar *str)
3461 while (*rptr != '\0') {
3462 if (*rptr == '\\') {
3465 c = (*(rptr++) - '0') << 6;
3466 c += (*(rptr++) - '0') << 3;
3467 c += *(rptr++) - '0';
3469 } else if (wptr != rptr) {
3477 static gint32 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf);
3480 #define GET_LOGICAL_DRIVE_STRINGS_BUFFER 512
3481 #define GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER 512
3482 #define GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER 64
3487 guint32 buffer_index;
3488 guint32 mountpoint_index;
3489 guint32 field_number;
3490 guint32 allocated_size;
3491 guint32 fsname_index;
3492 guint32 fstype_index;
3493 gchar mountpoint [GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER + 1];
3494 gchar *mountpoint_allocated;
3495 gchar buffer [GET_LOGICAL_DRIVE_STRINGS_BUFFER];
3496 gchar fsname [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
3497 gchar fstype [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
3500 gboolean check_mount_source;
3501 } LinuxMountInfoParseState;
3503 static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
3504 static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
3505 static void append_to_mountpoint (LinuxMountInfoParseState *state);
3506 static gboolean add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
3508 gint32 GetLogicalDriveStrings (guint32 len, gunichar2 *buf)
3512 LinuxMountInfoParseState state;
3513 gboolean (*parser)(guint32, gunichar2*, LinuxMountInfoParseState*) = NULL;
3515 memset (buf, 0, len * sizeof (gunichar2));
3516 fd = open ("/proc/self/mountinfo", O_RDONLY);
3518 parser = GetLogicalDriveStrings_MountInfo;
3520 fd = open ("/proc/mounts", O_RDONLY);
3522 parser = GetLogicalDriveStrings_Mounts;
3526 ret = GetLogicalDriveStrings_Mtab (len, buf);
3530 memset (&state, 0, sizeof (LinuxMountInfoParseState));
3531 state.field_number = 1;
3532 state.delimiter = ' ';
3534 while ((state.nbytes = read (fd, state.buffer, GET_LOGICAL_DRIVE_STRINGS_BUFFER)) > 0) {
3535 state.buffer_index = 0;
3537 while ((*parser)(len, buf, &state)) {
3538 if (state.buffer [state.buffer_index] == '\n') {
3539 gboolean quit = add_drive_string (len, buf, &state);
3540 state.field_number = 1;
3541 state.buffer_index++;
3542 if (state.mountpoint_allocated) {
3543 g_free (state.mountpoint_allocated);
3544 state.mountpoint_allocated = NULL;
3561 static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
3565 if (state->field_number == 1)
3566 state->check_mount_source = TRUE;
3568 while (state->buffer_index < (guint32)state->nbytes) {
3569 if (state->buffer [state->buffer_index] == state->delimiter) {
3570 state->field_number++;
3571 switch (state->field_number) {
3573 state->mountpoint_index = 0;
3577 if (state->mountpoint_allocated)
3578 state->mountpoint_allocated [state->mountpoint_index] = 0;
3580 state->mountpoint [state->mountpoint_index] = 0;
3584 ptr = (gchar*)memchr (state->buffer + state->buffer_index, '\n', GET_LOGICAL_DRIVE_STRINGS_BUFFER - state->buffer_index);
3586 state->buffer_index = (ptr - (gchar*)state->buffer) - 1;
3588 state->buffer_index = state->nbytes;
3591 state->buffer_index++;
3593 } else if (state->buffer [state->buffer_index] == '\n')
3596 switch (state->field_number) {
3598 if (state->check_mount_source) {
3599 if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
3600 /* We can ignore the rest, it's a device
3602 state->check_mount_source = FALSE;
3603 state->fsname [state->fsname_index++] = '/';
3606 if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3607 state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
3612 append_to_mountpoint (state);
3616 if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3617 state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
3621 state->buffer_index++;
3627 static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
3629 while (state->buffer_index < (guint32)state->nbytes) {
3630 if (state->buffer [state->buffer_index] == state->delimiter) {
3631 state->field_number++;
3632 switch (state->field_number) {
3634 state->mountpoint_index = 0;
3638 if (state->mountpoint_allocated)
3639 state->mountpoint_allocated [state->mountpoint_index] = 0;
3641 state->mountpoint [state->mountpoint_index] = 0;
3645 state->delimiter = '-';
3649 state->delimiter = ' ';
3653 state->check_mount_source = TRUE;
3656 state->buffer_index++;
3658 } else if (state->buffer [state->buffer_index] == '\n')
3661 switch (state->field_number) {
3663 append_to_mountpoint (state);
3667 if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3668 state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
3672 if (state->check_mount_source) {
3673 if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
3674 /* We can ignore the rest, it's a device
3676 state->check_mount_source = FALSE;
3677 state->fsname [state->fsname_index++] = '/';
3680 if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
3681 state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
3686 state->buffer_index++;
3693 append_to_mountpoint (LinuxMountInfoParseState *state)
3695 gchar ch = state->buffer [state->buffer_index];
3696 if (state->mountpoint_allocated) {
3697 if (state->mountpoint_index >= state->allocated_size) {
3698 guint32 newsize = (state->allocated_size << 1) + 1;
3699 gchar *newbuf = (gchar *)g_malloc0 (newsize * sizeof (gchar));
3701 memcpy (newbuf, state->mountpoint_allocated, state->mountpoint_index);
3702 g_free (state->mountpoint_allocated);
3703 state->mountpoint_allocated = newbuf;
3704 state->allocated_size = newsize;
3706 state->mountpoint_allocated [state->mountpoint_index++] = ch;
3708 if (state->mountpoint_index >= GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER) {
3709 state->allocated_size = (state->mountpoint_index << 1) + 1;
3710 state->mountpoint_allocated = (gchar *)g_malloc0 (state->allocated_size * sizeof (gchar));
3711 memcpy (state->mountpoint_allocated, state->mountpoint, state->mountpoint_index);
3712 state->mountpoint_allocated [state->mountpoint_index++] = ch;
3714 state->mountpoint [state->mountpoint_index++] = ch;
3719 add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
3721 gboolean quit = FALSE;
3722 gboolean ignore_entry;
3724 if (state->fsname_index == 1 && state->fsname [0] == '/')
3725 ignore_entry = FALSE;
3726 else if (state->fsname_index == 0 || memcmp ("none", state->fsname, state->fsname_index) == 0)
3727 ignore_entry = TRUE;
3728 else if (state->fstype_index >= 5 && memcmp ("fuse.", state->fstype, 5) == 0) {
3729 /* Ignore GNOME's gvfs */
3730 if (state->fstype_index == 21 && memcmp ("fuse.gvfs-fuse-daemon", state->fstype, state->fstype_index) == 0)
3731 ignore_entry = TRUE;
3733 ignore_entry = FALSE;
3734 } else if (state->fstype_index == 3 && memcmp ("nfs", state->fstype, state->fstype_index) == 0)
3735 ignore_entry = FALSE;
3737 ignore_entry = TRUE;
3739 if (!ignore_entry) {
3742 gchar *mountpoint = state->mountpoint_allocated ? state->mountpoint_allocated : state->mountpoint;
3744 unescape_octal (mountpoint);
3745 dir = g_utf8_to_utf16 (mountpoint, -1, NULL, &length, NULL);
3746 if (state->total + length + 1 > len) {
3748 state->total = len * 2;
3751 memcpy (buf + state->total, dir, sizeof (gunichar2) * length);
3752 state->total += length;
3756 state->fsname_index = 0;
3757 state->fstype_index = 0;
3763 GetLogicalDriveStrings (guint32 len, gunichar2 *buf)
3765 return GetLogicalDriveStrings_Mtab (len, buf);
3769 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf)
3772 gunichar2 *ptr, *dir;
3773 glong length, total = 0;
3777 memset (buf, 0, sizeof (gunichar2) * (len + 1));
3782 /* Sigh, mntent and friends don't work well.
3783 * It stops on the first line that doesn't begin with a '/'.
3784 * (linux 2.6.5, libc 2.3.2.ds1-12) - Gonz */
3785 fp = fopen ("/etc/mtab", "rt");
3787 fp = fopen ("/etc/mnttab", "rt");
3793 while (fgets (buffer, 512, fp) != NULL) {
3797 splitted = g_strsplit (buffer, " ", 0);
3798 if (!*splitted || !*(splitted + 1)) {
3799 g_strfreev (splitted);
3803 unescape_octal (*(splitted + 1));
3804 dir = g_utf8_to_utf16 (*(splitted + 1), -1, NULL, &length, NULL);
3805 g_strfreev (splitted);
3806 if (total + length + 1 > len) {
3809 return len * 2; /* guess */
3812 memcpy (ptr + total, dir, sizeof (gunichar2) * length);
3814 total += length + 1;
3819 /* Commented out, does not work with my mtab!!! - Gonz */
3820 #ifdef NOTENABLED /* HAVE_MNTENT_H */
3824 gunichar2 *ptr, *dir;
3825 glong len, total = 0;
3828 fp = setmntent ("/etc/mtab", "rt");
3830 fp = setmntent ("/etc/mnttab", "rt");
3836 while ((mnt = getmntent (fp)) != NULL) {
3837 g_print ("GOT %s\n", mnt->mnt_dir);
3838 dir = g_utf8_to_utf16 (mnt->mnt_dir, &len, NULL, NULL, NULL);
3839 if (total + len + 1 > len) {
3840 return len * 2; /* guess */
3843 memcpy (ptr + total, dir, sizeof (gunichar2) * len);
3855 #if defined(HAVE_STATVFS) || defined(HAVE_STATFS)
3856 gboolean GetDiskFreeSpaceEx(const gunichar2 *path_name, WapiULargeInteger *free_bytes_avail,
3857 WapiULargeInteger *total_number_of_bytes,
3858 WapiULargeInteger *total_number_of_free_bytes)
3861 struct statvfs fsstat;
3862 #elif defined(HAVE_STATFS)
3863 struct statfs fsstat;
3865 gboolean isreadonly;
3866 gchar *utf8_path_name;
3868 unsigned long block_size;
3870 if (path_name == NULL) {
3871 utf8_path_name = g_strdup (g_get_current_dir());
3872 if (utf8_path_name == NULL) {
3873 SetLastError (ERROR_DIRECTORY);
3878 utf8_path_name = mono_unicode_to_external (path_name);
3879 if (utf8_path_name == NULL) {
3880 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3882 SetLastError (ERROR_INVALID_NAME);
3889 ret = statvfs (utf8_path_name, &fsstat);
3890 isreadonly = ((fsstat.f_flag & ST_RDONLY) == ST_RDONLY);
3891 block_size = fsstat.f_frsize;
3892 #elif defined(HAVE_STATFS)
3893 ret = statfs (utf8_path_name, &fsstat);
3894 #if defined (MNT_RDONLY)
3895 isreadonly = ((fsstat.f_flags & MNT_RDONLY) == MNT_RDONLY);
3896 #elif defined (MS_RDONLY)
3897 isreadonly = ((fsstat.f_flags & MS_RDONLY) == MS_RDONLY);
3899 block_size = fsstat.f_bsize;
3901 } while(ret == -1 && errno == EINTR);
3903 g_free(utf8_path_name);
3906 _wapi_set_last_error_from_errno ();
3907 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: statvfs failed: %s", __func__, strerror (errno));
3911 /* total number of free bytes for non-root */
3912 if (free_bytes_avail != NULL) {
3914 free_bytes_avail->QuadPart = 0;
3917 free_bytes_avail->QuadPart = block_size * (guint64)fsstat.f_bavail;
3921 /* total number of bytes available for non-root */
3922 if (total_number_of_bytes != NULL) {
3923 total_number_of_bytes->QuadPart = block_size * (guint64)fsstat.f_blocks;
3926 /* total number of bytes available for root */
3927 if (total_number_of_free_bytes != NULL) {
3929 total_number_of_free_bytes->QuadPart = 0;
3932 total_number_of_free_bytes->QuadPart = block_size * (guint64)fsstat.f_bfree;
3939 gboolean GetDiskFreeSpaceEx(const gunichar2 *path_name, WapiULargeInteger *free_bytes_avail,
3940 WapiULargeInteger *total_number_of_bytes,
3941 WapiULargeInteger *total_number_of_free_bytes)
3943 if (free_bytes_avail != NULL) {
3944 free_bytes_avail->QuadPart = (guint64) -1;
3947 if (total_number_of_bytes != NULL) {
3948 total_number_of_bytes->QuadPart = (guint64) -1;
3951 if (total_number_of_free_bytes != NULL) {
3952 total_number_of_free_bytes->QuadPart = (guint64) -1;
3960 * General Unix support
3965 const long fstypeid;
3967 const gchar* fstype;
3970 static _wapi_drive_type _wapi_drive_types[] = {
3972 { DRIVE_REMOTE, "afp" },
3973 { DRIVE_REMOTE, "autofs" },
3974 { DRIVE_CDROM, "cddafs" },
3975 { DRIVE_CDROM, "cd9660" },
3976 { DRIVE_RAMDISK, "devfs" },
3977 { DRIVE_FIXED, "exfat" },
3978 { DRIVE_RAMDISK, "fdesc" },
3979 { DRIVE_REMOTE, "ftp" },
3980 { DRIVE_FIXED, "hfs" },
3981 { DRIVE_FIXED, "msdos" },
3982 { DRIVE_REMOTE, "nfs" },
3983 { DRIVE_FIXED, "ntfs" },
3984 { DRIVE_REMOTE, "smbfs" },
3985 { DRIVE_FIXED, "udf" },
3986 { DRIVE_REMOTE, "webdav" },
3987 { DRIVE_UNKNOWN, NULL }
3989 { DRIVE_FIXED, ADFS_SUPER_MAGIC, "adfs"},
3990 { DRIVE_FIXED, AFFS_SUPER_MAGIC, "affs"},
3991 { DRIVE_REMOTE, AFS_SUPER_MAGIC, "afs"},
3992 { DRIVE_RAMDISK, AUTOFS_SUPER_MAGIC, "autofs"},
3993 { DRIVE_RAMDISK, AUTOFS_SBI_MAGIC, "autofs4"},
3994 { DRIVE_REMOTE, CODA_SUPER_MAGIC, "coda" },
3995 { DRIVE_RAMDISK, CRAMFS_MAGIC, "cramfs"},
3996 { DRIVE_RAMDISK, CRAMFS_MAGIC_WEND, "cramfs"},
3997 { DRIVE_REMOTE, CIFS_MAGIC_NUMBER, "cifs"},
3998 { DRIVE_RAMDISK, DEBUGFS_MAGIC, "debugfs"},
3999 { DRIVE_RAMDISK, SYSFS_MAGIC, "sysfs"},
4000 { DRIVE_RAMDISK, SECURITYFS_MAGIC, "securityfs"},
4001 { DRIVE_RAMDISK, SELINUX_MAGIC, "selinuxfs"},
4002 { DRIVE_RAMDISK, RAMFS_MAGIC, "ramfs"},
4003 { DRIVE_FIXED, SQUASHFS_MAGIC, "squashfs"},
4004 { DRIVE_FIXED, EFS_SUPER_MAGIC, "efs"},
4005 { DRIVE_FIXED, EXT2_SUPER_MAGIC, "ext"},
4006 { DRIVE_FIXED, EXT3_SUPER_MAGIC, "ext"},
4007 { DRIVE_FIXED, EXT4_SUPER_MAGIC, "ext"},
4008 { DRIVE_REMOTE, XENFS_SUPER_MAGIC, "xenfs"},
4009 { DRIVE_FIXED, BTRFS_SUPER_MAGIC, "btrfs"},
4010 { DRIVE_FIXED, HFS_SUPER_MAGIC, "hfs"},
4011 { DRIVE_FIXED, HFSPLUS_SUPER_MAGIC, "hfsplus"},
4012 { DRIVE_FIXED, HPFS_SUPER_MAGIC, "hpfs"},
4013 { DRIVE_RAMDISK, HUGETLBFS_MAGIC, "hugetlbfs"},
4014 { DRIVE_CDROM, ISOFS_SUPER_MAGIC, "iso"},
4015 { DRIVE_FIXED, JFFS2_SUPER_MAGIC, "jffs2"},
4016 { DRIVE_RAMDISK, ANON_INODE_FS_MAGIC, "anon_inode"},
4017 { DRIVE_FIXED, JFS_SUPER_MAGIC, "jfs"},
4018 { DRIVE_FIXED, MINIX_SUPER_MAGIC, "minix"},
4019 { DRIVE_FIXED, MINIX_SUPER_MAGIC2, "minix v2"},
4020 { DRIVE_FIXED, MINIX2_SUPER_MAGIC, "minix2"},
4021 { DRIVE_FIXED, MINIX2_SUPER_MAGIC2, "minix2 v2"},
4022 { DRIVE_FIXED, MINIX3_SUPER_MAGIC, "minix3"},
4023 { DRIVE_FIXED, MSDOS_SUPER_MAGIC, "msdos"},
4024 { DRIVE_REMOTE, NCP_SUPER_MAGIC, "ncp"},
4025 { DRIVE_REMOTE, NFS_SUPER_MAGIC, "nfs"},
4026 { DRIVE_FIXED, NTFS_SB_MAGIC, "ntfs"},
4027 { DRIVE_RAMDISK, OPENPROM_SUPER_MAGIC, "openpromfs"},
4028 { DRIVE_RAMDISK, PROC_SUPER_MAGIC, "proc"},
4029 { DRIVE_FIXED, QNX4_SUPER_MAGIC, "qnx4"},
4030 { DRIVE_FIXED, REISERFS_SUPER_MAGIC, "reiserfs"},
4031 { DRIVE_RAMDISK, ROMFS_MAGIC, "romfs"},
4032 { DRIVE_REMOTE, SMB_SUPER_MAGIC, "samba"},
4033 { DRIVE_RAMDISK, CGROUP_SUPER_MAGIC, "cgroupfs"},
4034 { DRIVE_RAMDISK, FUTEXFS_SUPER_MAGIC, "futexfs"},
4035 { DRIVE_FIXED, SYSV2_SUPER_MAGIC, "sysv2"},
4036 { DRIVE_FIXED, SYSV4_SUPER_MAGIC, "sysv4"},
4037 { DRIVE_RAMDISK, TMPFS_MAGIC, "tmpfs"},
4038 { DRIVE_RAMDISK, DEVPTS_SUPER_MAGIC, "devpts"},
4039 { DRIVE_CDROM, UDF_SUPER_MAGIC, "udf"},
4040 { DRIVE_FIXED, UFS_MAGIC, "ufs"},
4041 { DRIVE_FIXED, UFS_MAGIC_BW, "ufs"},
4042 { DRIVE_FIXED, UFS2_MAGIC, "ufs2"},
4043 { DRIVE_FIXED, UFS_CIGAM, "ufs"},
4044 { DRIVE_RAMDISK, USBDEVICE_SUPER_MAGIC, "usbdev"},
4045 { DRIVE_FIXED, XENIX_SUPER_MAGIC, "xenix"},
4046 { DRIVE_FIXED, XFS_SB_MAGIC, "xfs"},
4047 { DRIVE_RAMDISK, FUSE_SUPER_MAGIC, "fuse"},
4048 { DRIVE_FIXED, V9FS_MAGIC, "9p"},
4049 { DRIVE_REMOTE, CEPH_SUPER_MAGIC, "ceph"},
4050 { DRIVE_RAMDISK, CONFIGFS_MAGIC, "configfs"},
4051 { DRIVE_RAMDISK, ECRYPTFS_SUPER_MAGIC, "eCryptfs"},
4052 { DRIVE_FIXED, EXOFS_SUPER_MAGIC, "exofs"},
4053 { DRIVE_FIXED, VXFS_SUPER_MAGIC, "vxfs"},
4054 { DRIVE_FIXED, VXFS_OLT_MAGIC, "vxfs_olt"},
4055 { DRIVE_REMOTE, GFS2_MAGIC, "gfs2"},
4056 { DRIVE_FIXED, LOGFS_MAGIC_U32, "logfs"},
4057 { DRIVE_FIXED, OCFS2_SUPER_MAGIC, "ocfs2"},
4058 { DRIVE_FIXED, OMFS_MAGIC, "omfs"},
4059 { DRIVE_FIXED, UBIFS_SUPER_MAGIC, "ubifs"},
4060 { DRIVE_UNKNOWN, 0, NULL}
4062 { DRIVE_RAMDISK, "ramfs" },
4063 { DRIVE_RAMDISK, "tmpfs" },
4064 { DRIVE_RAMDISK, "proc" },
4065 { DRIVE_RAMDISK, "sysfs" },
4066 { DRIVE_RAMDISK, "debugfs" },
4067 { DRIVE_RAMDISK, "devpts" },
4068 { DRIVE_RAMDISK, "securityfs" },
4069 { DRIVE_CDROM, "iso9660" },
4070 { DRIVE_FIXED, "ext2" },
4071 { DRIVE_FIXED, "ext3" },
4072 { DRIVE_FIXED, "ext4" },
4073 { DRIVE_FIXED, "sysv" },
4074 { DRIVE_FIXED, "reiserfs" },
4075 { DRIVE_FIXED, "ufs" },
4076 { DRIVE_FIXED, "vfat" },
4077 { DRIVE_FIXED, "msdos" },
4078 { DRIVE_FIXED, "udf" },
4079 { DRIVE_FIXED, "hfs" },
4080 { DRIVE_FIXED, "hpfs" },
4081 { DRIVE_FIXED, "qnx4" },
4082 { DRIVE_FIXED, "ntfs" },
4083 { DRIVE_FIXED, "ntfs-3g" },
4084 { DRIVE_REMOTE, "smbfs" },
4085 { DRIVE_REMOTE, "fuse" },
4086 { DRIVE_REMOTE, "nfs" },
4087 { DRIVE_REMOTE, "nfs4" },
4088 { DRIVE_REMOTE, "cifs" },
4089 { DRIVE_REMOTE, "ncpfs" },
4090 { DRIVE_REMOTE, "coda" },
4091 { DRIVE_REMOTE, "afs" },
4092 { DRIVE_UNKNOWN, NULL }
4097 static guint32 _wapi_get_drive_type(long f_type)
4099 _wapi_drive_type *current;
4101 current = &_wapi_drive_types[0];
4102 while (current->drive_type != DRIVE_UNKNOWN) {
4103 if (current->fstypeid == f_type)
4104 return current->drive_type;
4108 return DRIVE_UNKNOWN;
4111 static guint32 _wapi_get_drive_type(const gchar* fstype)
4113 _wapi_drive_type *current;
4115 current = &_wapi_drive_types[0];
4116 while (current->drive_type != DRIVE_UNKNOWN) {
4117 if (strcmp (current->fstype, fstype) == 0)
4123 return current->drive_type;
4127 #if defined (PLATFORM_MACOSX) || defined (__linux__)
4129 GetDriveTypeFromPath (const char *utf8_root_path_name)
4133 if (statfs (utf8_root_path_name, &buf) == -1)
4134 return DRIVE_UNKNOWN;
4136 return _wapi_get_drive_type (buf.f_fstypename);
4138 return _wapi_get_drive_type (buf.f_type);
4143 GetDriveTypeFromPath (const gchar *utf8_root_path_name)
4150 fp = fopen ("/etc/mtab", "rt");
4152 fp = fopen ("/etc/mnttab", "rt");
4154 return(DRIVE_UNKNOWN);
4157 drive_type = DRIVE_NO_ROOT_DIR;
4158 while (fgets (buffer, 512, fp) != NULL) {
4159 splitted = g_strsplit (buffer, " ", 0);
4160 if (!*splitted || !*(splitted + 1) || !*(splitted + 2)) {
4161 g_strfreev (splitted);
4165 /* compare given root_path_name with the one from mtab,
4166 if length of utf8_root_path_name is zero it must be the root dir */
4167 if (strcmp (*(splitted + 1), utf8_root_path_name) == 0 ||
4168 (strcmp (*(splitted + 1), "/") == 0 && strlen (utf8_root_path_name) == 0)) {
4169 drive_type = _wapi_get_drive_type (*(splitted + 2));
4170 /* it is possible this path might be mounted again with
4171 a known type...keep looking */
4172 if (drive_type != DRIVE_UNKNOWN) {
4173 g_strfreev (splitted);
4178 g_strfreev (splitted);
4186 guint32 GetDriveType(const gunichar2 *root_path_name)
4188 gchar *utf8_root_path_name;
4191 if (root_path_name == NULL) {
4192 utf8_root_path_name = g_strdup (g_get_current_dir());
4193 if (utf8_root_path_name == NULL) {
4194 return(DRIVE_NO_ROOT_DIR);
4198 utf8_root_path_name = mono_unicode_to_external (root_path_name);
4199 if (utf8_root_path_name == NULL) {
4200 MONO_TRACE (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
4201 return(DRIVE_NO_ROOT_DIR);
4204 /* strip trailing slash for compare below */
4205 if (g_str_has_suffix(utf8_root_path_name, "/") && utf8_root_path_name [1] != 0) {
4206 utf8_root_path_name[strlen(utf8_root_path_name) - 1] = 0;
4209 drive_type = GetDriveTypeFromPath (utf8_root_path_name);
4210 g_free (utf8_root_path_name);
4212 return (drive_type);
4215 #if defined (PLATFORM_MACOSX) || defined (__linux__) || defined(PLATFORM_BSD) || defined(__native_client__) || defined(__FreeBSD_kernel__)
4217 get_fstypename (gchar *utfpath)
4219 #if defined (PLATFORM_MACOSX) || defined (__linux__)
4222 _wapi_drive_type *current;
4224 if (statfs (utfpath, &stat) == -1)
4227 return g_strdup (stat.f_fstypename);
4229 current = &_wapi_drive_types[0];
4230 while (current->drive_type != DRIVE_UNKNOWN) {
4231 if (stat.f_type == current->fstypeid)
4232 return g_strdup (current->fstype);
4242 /* Linux has struct statfs which has a different layout */
4244 GetVolumeInformation (const gunichar2 *path, gunichar2 *volumename, int volumesize, int *outserial, int *maxcomp, int *fsflags, gunichar2 *fsbuffer, int fsbuffersize)
4248 gboolean status = FALSE;
4251 // We only support getting the file system type
4252 if (fsbuffer == NULL)
4255 utfpath = mono_unicode_to_external (path);
4256 if ((fstypename = get_fstypename (utfpath)) != NULL){
4257 gunichar2 *ret = g_utf8_to_utf16 (fstypename, -1, NULL, &len, NULL);
4258 if (ret != NULL && len < fsbuffersize){
4259 memcpy (fsbuffer, ret, len * sizeof (gunichar2));
4265 g_free (fstypename);
4274 _wapi_io_init (void)
4276 mono_os_mutex_init (&stdhandle_mutex);