14 #ifdef HAVE_SYS_STATVFS_H
15 #include <sys/statvfs.h>
17 #if defined(HAVE_SYS_STATFS_H)
18 #include <sys/statfs.h>
20 #if defined(HAVE_SYS_PARAM_H) && defined(HAVE_SYS_MOUNT_H)
21 #include <sys/param.h>
22 #include <sys/mount.h>
24 #include <sys/types.h>
28 #include <sys/ioctl.h>
30 #include <mono/utils/linux_magic.h>
38 #include "w32file-internals.h"
40 #include "w32file-unix-glob.h"
41 #include "w32handle.h"
43 #include "utils/mono-io-portability.h"
44 #include "utils/mono-logger-internals.h"
45 #include "utils/mono-os-mutex.h"
46 #include "utils/mono-threads.h"
47 #include "utils/mono-threads-api.h"
48 #include "utils/strenc.h"
59 /* Currently used for both FILE, CONSOLE and PIPE handle types.
60 * This may have to change in future. */
63 FileShare *share_info; /* Pointer into shared mem */
65 guint32 security_attributes;
79 * If SHM is disabled, this will point to a hash of FileShare structures, otherwise
80 * it will be NULL. We use this instead of _wapi_fileshare_layout to avoid allocating a
83 static GHashTable *file_share_table;
84 static MonoCoopMutex file_share_mutex;
87 time_t_to_filetime (time_t timeval, FILETIME *filetime)
91 ticks = ((guint64)timeval * 10000000) + 116444736000000000ULL;
92 filetime->dwLowDateTime = ticks & 0xFFFFFFFF;
93 filetime->dwHighDateTime = ticks >> 32;
97 file_share_release (FileShare *share_info)
99 /* Prevent new entries racing with us */
100 mono_coop_mutex_lock (&file_share_mutex);
102 g_assert (share_info->handle_refs > 0);
103 share_info->handle_refs -= 1;
105 if (share_info->handle_refs == 0)
106 g_hash_table_remove (file_share_table, share_info);
108 mono_coop_mutex_unlock (&file_share_mutex);
112 file_share_equal (gconstpointer ka, gconstpointer kb)
114 const FileShare *s1 = (const FileShare *)ka;
115 const FileShare *s2 = (const FileShare *)kb;
117 return (s1->device == s2->device && s1->inode == s2->inode) ? 1 : 0;
121 file_share_hash (gconstpointer data)
123 const FileShare *s = (const FileShare *)data;
129 file_share_get (guint64 device, guint64 inode, guint32 new_sharemode, guint32 new_access,
130 guint32 *old_sharemode, guint32 *old_access, FileShare **share_info)
132 FileShare *file_share;
133 gboolean exists = FALSE;
135 /* Prevent new entries racing with us */
136 mono_coop_mutex_lock (&file_share_mutex);
141 * Instead of allocating a 4MB array, we use a hash table to keep track of this
142 * info. This is needed even if SHM is disabled, to track sharing inside
143 * the current process.
145 if (!file_share_table)
146 file_share_table = g_hash_table_new_full (file_share_hash, file_share_equal, NULL, g_free);
151 file_share = (FileShare *)g_hash_table_lookup (file_share_table, &tmp);
153 *old_sharemode = file_share->sharemode;
154 *old_access = file_share->access;
155 *share_info = file_share;
157 g_assert (file_share->handle_refs > 0);
158 file_share->handle_refs += 1;
162 file_share = g_new0 (FileShare, 1);
164 file_share->device = device;
165 file_share->inode = inode;
166 file_share->sharemode = new_sharemode;
167 file_share->access = new_access;
168 file_share->handle_refs = 1;
169 *share_info = file_share;
171 g_hash_table_insert (file_share_table, file_share, file_share);
174 mono_coop_mutex_unlock (&file_share_mutex);
180 _wapi_open (const gchar *pathname, gint flags, mode_t mode)
183 gchar *located_filename;
185 if (flags & O_CREAT) {
186 located_filename = mono_portability_find_file (pathname, FALSE);
187 if (located_filename == NULL) {
189 fd = open (pathname, flags, mode);
193 fd = open (located_filename, flags, mode);
195 g_free (located_filename);
199 fd = open (pathname, flags, mode);
201 if (fd == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
202 gint saved_errno = errno;
203 located_filename = mono_portability_find_file (pathname, TRUE);
205 if (located_filename == NULL) {
211 fd = open (located_filename, flags, mode);
213 g_free (located_filename);
221 _wapi_access (const gchar *pathname, gint mode)
226 ret = access (pathname, mode);
228 if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
229 gint saved_errno = errno;
230 gchar *located_filename = mono_portability_find_file (pathname, TRUE);
232 if (located_filename == NULL) {
238 ret = access (located_filename, mode);
240 g_free (located_filename);
247 _wapi_chmod (const gchar *pathname, mode_t mode)
252 ret = chmod (pathname, mode);
254 if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
255 gint saved_errno = errno;
256 gchar *located_filename = mono_portability_find_file (pathname, TRUE);
258 if (located_filename == NULL) {
264 ret = chmod (located_filename, mode);
266 g_free (located_filename);
273 _wapi_utime (const gchar *filename, const struct utimbuf *buf)
278 ret = utime (filename, buf);
280 if (ret == -1 && errno == ENOENT && IS_PORTABILITY_SET) {
281 gint saved_errno = errno;
282 gchar *located_filename = mono_portability_find_file (filename, TRUE);
284 if (located_filename == NULL) {
290 ret = utime (located_filename, buf);
292 g_free (located_filename);
299 _wapi_unlink (const gchar *pathname)
304 ret = unlink (pathname);
306 if (ret == -1 && (errno == ENOENT || errno == ENOTDIR || errno == EISDIR) && IS_PORTABILITY_SET) {
307 gint saved_errno = errno;
308 gchar *located_filename = mono_portability_find_file (pathname, TRUE);
310 if (located_filename == NULL) {
316 ret = unlink (located_filename);
318 g_free (located_filename);
325 _wapi_rename (const gchar *oldpath, const gchar *newpath)
328 gchar *located_newpath = mono_portability_find_file (newpath, FALSE);
330 if (located_newpath == NULL) {
332 ret = rename (oldpath, newpath);
336 ret = rename (oldpath, located_newpath);
339 if (ret == -1 && (errno == EISDIR || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EXDEV) && IS_PORTABILITY_SET) {
340 gint saved_errno = errno;
341 gchar *located_oldpath = mono_portability_find_file (oldpath, TRUE);
343 if (located_oldpath == NULL) {
344 g_free (located_oldpath);
345 g_free (located_newpath);
352 ret = rename (located_oldpath, located_newpath);
354 g_free (located_oldpath);
356 g_free (located_newpath);
363 _wapi_stat (const gchar *path, struct stat *buf)
368 ret = stat (path, buf);
370 if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
371 gint saved_errno = errno;
372 gchar *located_filename = mono_portability_find_file (path, TRUE);
374 if (located_filename == NULL) {
380 ret = stat (located_filename, buf);
382 g_free (located_filename);
389 _wapi_lstat (const gchar *path, struct stat *buf)
394 ret = lstat (path, buf);
396 if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
397 gint saved_errno = errno;
398 gchar *located_filename = mono_portability_find_file (path, TRUE);
400 if (located_filename == NULL) {
405 ret = lstat (located_filename, buf);
406 g_free (located_filename);
413 _wapi_mkdir (const gchar *pathname, mode_t mode)
416 gchar *located_filename = mono_portability_find_file (pathname, FALSE);
418 if (located_filename == NULL) {
420 ret = mkdir (pathname, mode);
424 ret = mkdir (located_filename, mode);
426 g_free (located_filename);
433 _wapi_rmdir (const gchar *pathname)
438 ret = rmdir (pathname);
440 if (ret == -1 && (errno == ENOENT || errno == ENOTDIR || errno == ENAMETOOLONG) && IS_PORTABILITY_SET) {
441 gint saved_errno = errno;
442 gchar *located_filename = mono_portability_find_file (pathname, TRUE);
444 if (located_filename == NULL) {
450 ret = rmdir (located_filename);
452 g_free (located_filename);
459 _wapi_chdir (const gchar *path)
466 if (ret == -1 && (errno == ENOENT || errno == ENOTDIR || errno == ENAMETOOLONG) && IS_PORTABILITY_SET) {
467 gint saved_errno = errno;
468 gchar *located_filename = mono_portability_find_file (path, TRUE);
470 if (located_filename == NULL) {
476 ret = chdir (located_filename);
478 g_free (located_filename);
485 _wapi_basename (const gchar *filename)
487 gchar *new_filename = g_strdup (filename), *ret;
489 if (IS_PORTABILITY_SET) {
490 g_strdelimit (new_filename, "\\", '/');
493 if (IS_PORTABILITY_DRIVE && g_ascii_isalpha (new_filename[0]) && (new_filename[1] == ':')) {
494 gint len = strlen (new_filename);
496 g_memmove (new_filename, new_filename + 2, len - 2);
497 new_filename[len - 2] = '\0';
500 ret = g_path_get_basename (new_filename);
501 g_free (new_filename);
507 _wapi_dirname (const gchar *filename)
509 gchar *new_filename = g_strdup (filename), *ret;
511 if (IS_PORTABILITY_SET) {
512 g_strdelimit (new_filename, "\\", '/');
515 if (IS_PORTABILITY_DRIVE && g_ascii_isalpha (new_filename[0]) && (new_filename[1] == ':')) {
516 gint len = strlen (new_filename);
518 g_memmove (new_filename, new_filename + 2, len - 2);
519 new_filename[len - 2] = '\0';
522 ret = g_path_get_dirname (new_filename);
523 g_free (new_filename);
529 _wapi_g_dir_open (const gchar *path, guint flags, GError **error)
534 ret = g_dir_open (path, flags, error);
536 if (ret == NULL && ((*error)->code == G_FILE_ERROR_NOENT || (*error)->code == G_FILE_ERROR_NOTDIR || (*error)->code == G_FILE_ERROR_NAMETOOLONG) && IS_PORTABILITY_SET) {
537 gchar *located_filename = mono_portability_find_file (path, TRUE);
538 GError *tmp_error = NULL;
540 if (located_filename == NULL) {
545 ret = g_dir_open (located_filename, flags, &tmp_error);
547 g_free (located_filename);
548 if (tmp_error == NULL) {
549 g_clear_error (error);
557 get_errno_from_g_file_error (gint error)
561 case G_FILE_ERROR_ACCES: return EACCES;
564 case G_FILE_ERROR_NAMETOOLONG: return ENAMETOOLONG;
567 case G_FILE_ERROR_NOENT: return ENOENT;
570 case G_FILE_ERROR_NOTDIR: return ENOTDIR;
573 case G_FILE_ERROR_NXIO: return ENXIO;
576 case G_FILE_ERROR_NODEV: return ENODEV;
579 case G_FILE_ERROR_ROFS: return EROFS;
582 case G_FILE_ERROR_TXTBSY: return ETXTBSY;
585 case G_FILE_ERROR_FAULT: return EFAULT;
588 case G_FILE_ERROR_LOOP: return ELOOP;
591 case G_FILE_ERROR_NOSPC: return ENOSPC;
594 case G_FILE_ERROR_NOMEM: return ENOMEM;
597 case G_FILE_ERROR_MFILE: return EMFILE;
600 case G_FILE_ERROR_NFILE: return ENFILE;
603 case G_FILE_ERROR_BADF: return EBADF;
606 case G_FILE_ERROR_INVAL: return EINVAL;
609 case G_FILE_ERROR_PIPE: return EPIPE;
612 case G_FILE_ERROR_AGAIN: return EAGAIN;
615 case G_FILE_ERROR_INTR: return EINTR;
618 case G_FILE_ERROR_IO: return EIO;
621 case G_FILE_ERROR_PERM: return EPERM;
623 case G_FILE_ERROR_FAILED: return ERROR_INVALID_PARAMETER;
625 g_assert_not_reached ();
630 file_compare (gconstpointer a, gconstpointer b)
632 gchar *astr = *(gchar **) a;
633 gchar *bstr = *(gchar **) b;
635 return strcmp (astr, bstr);
638 /* scandir using glib */
640 _wapi_io_scandir (const gchar *dirname, const gchar *pattern, gchar ***namelist)
642 GError *error = NULL;
646 mono_w32file_unix_glob_t glob_buf;
649 dir = _wapi_g_dir_open (dirname, 0, &error);
651 /* g_dir_open returns ENOENT on directories on which we don't
652 * have read/x permission */
653 gint errnum = get_errno_from_g_file_error (error->code);
654 g_error_free (error);
655 if (errnum == ENOENT &&
656 !_wapi_access (dirname, F_OK) &&
657 _wapi_access (dirname, R_OK|X_OK)) {
665 if (IS_PORTABILITY_CASE) {
666 flags = W32FILE_UNIX_GLOB_IGNORECASE;
669 result = mono_w32file_unix_glob (dir, pattern, flags, &glob_buf);
670 if (g_str_has_suffix (pattern, ".*")) {
671 /* Special-case the patterns ending in '.*', as
672 * windows also matches entries with no extension with
675 * TODO: should this be a MONO_IOMAP option?
677 gchar *pattern2 = g_strndup (pattern, strlen (pattern) - 2);
683 result2 = mono_w32file_unix_glob (dir, pattern2, flags | W32FILE_UNIX_GLOB_APPEND | W32FILE_UNIX_GLOB_UNIQUE, &glob_buf);
695 if (glob_buf.gl_pathc == 0) {
697 } else if (result != 0) {
701 names = g_ptr_array_new ();
702 for (i = 0; i < glob_buf.gl_pathc; i++) {
703 g_ptr_array_add (names, g_strdup (glob_buf.gl_pathv[i]));
706 mono_w32file_unix_globfree (&glob_buf);
710 g_ptr_array_sort (names, file_compare);
711 g_ptr_array_set_size (names, result + 1);
713 *namelist = (gchar **) g_ptr_array_free (names, FALSE);
715 g_ptr_array_free (names, TRUE);
722 _wapi_lock_file_region (gint fd, off_t offset, off_t length)
724 struct flock lock_data;
727 if (offset < 0 || length < 0) {
728 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
732 lock_data.l_type = F_WRLCK;
733 lock_data.l_whence = SEEK_SET;
734 lock_data.l_start = offset;
735 lock_data.l_len = length;
738 ret = fcntl (fd, F_SETLK, &lock_data);
739 } while(ret == -1 && errno == EINTR);
741 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fcntl returns %d", __func__, ret);
745 * if locks are not available (NFS for example),
750 || errno == EOPNOTSUPP
759 mono_w32error_set_last (ERROR_LOCK_VIOLATION);
767 _wapi_unlock_file_region (gint fd, off_t offset, off_t length)
769 struct flock lock_data;
772 lock_data.l_type = F_UNLCK;
773 lock_data.l_whence = SEEK_SET;
774 lock_data.l_start = offset;
775 lock_data.l_len = length;
778 ret = fcntl (fd, F_SETLK, &lock_data);
779 } while(ret == -1 && errno == EINTR);
781 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fcntl returns %d", __func__, ret);
785 * if locks are not available (NFS for example),
790 || errno == EOPNOTSUPP
799 mono_w32error_set_last (ERROR_LOCK_VIOLATION);
806 static void file_close (gpointer handle, gpointer data);
807 static void file_details (gpointer data);
808 static const gchar* file_typename (void);
809 static gsize file_typesize (void);
810 static gint file_getfiletype(void);
811 static gboolean file_read(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread);
812 static gboolean file_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten);
813 static gboolean file_flush(gpointer handle);
814 static guint32 file_seek(gpointer handle, gint32 movedistance,
815 gint32 *highmovedistance, gint method);
816 static gboolean file_setendoffile(gpointer handle);
817 static guint32 file_getfilesize(gpointer handle, guint32 *highsize);
818 static gboolean file_getfiletime(gpointer handle, FILETIME *create_time,
819 FILETIME *access_time,
820 FILETIME *write_time);
821 static gboolean file_setfiletime(gpointer handle,
822 const FILETIME *create_time,
823 const FILETIME *access_time,
824 const FILETIME *write_time);
825 static guint32 GetDriveTypeFromPath (const gchar *utf8_root_path_name);
827 /* File handle is only signalled for overlapped IO */
828 static MonoW32HandleOps _wapi_file_ops = {
829 file_close, /* close */
833 NULL, /* special_wait */
835 file_details, /* details */
836 file_typename, /* typename */
837 file_typesize, /* typesize */
840 static void console_close (gpointer handle, gpointer data);
841 static void console_details (gpointer data);
842 static const gchar* console_typename (void);
843 static gsize console_typesize (void);
844 static gint console_getfiletype(void);
845 static gboolean console_read(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread);
846 static gboolean console_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten);
848 /* Console is mostly the same as file, except it can block waiting for
851 static MonoW32HandleOps _wapi_console_ops = {
852 console_close, /* close */
856 NULL, /* special_wait */
858 console_details, /* details */
859 console_typename, /* typename */
860 console_typesize, /* typesize */
863 static const gchar* find_typename (void);
864 static gsize find_typesize (void);
866 static MonoW32HandleOps _wapi_find_ops = {
871 NULL, /* special_wait */
874 find_typename, /* typename */
875 find_typesize, /* typesize */
878 static void pipe_close (gpointer handle, gpointer data);
879 static void pipe_details (gpointer data);
880 static const gchar* pipe_typename (void);
881 static gsize pipe_typesize (void);
882 static gint pipe_getfiletype (void);
883 static gboolean pipe_read (gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread);
884 static gboolean pipe_write (gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten);
888 static MonoW32HandleOps _wapi_pipe_ops = {
889 pipe_close, /* close */
893 NULL, /* special_wait */
895 pipe_details, /* details */
896 pipe_typename, /* typename */
897 pipe_typesize, /* typesize */
900 static const struct {
901 /* File, console and pipe handles */
902 gint (*getfiletype)(void);
904 /* File, console and pipe handles */
905 gboolean (*readfile)(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread);
906 gboolean (*writefile)(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten);
907 gboolean (*flushfile)(gpointer handle);
910 guint32 (*seek)(gpointer handle, gint32 movedistance,
911 gint32 *highmovedistance, gint method);
912 gboolean (*setendoffile)(gpointer handle);
913 guint32 (*getfilesize)(gpointer handle, guint32 *highsize);
914 gboolean (*getfiletime)(gpointer handle, FILETIME *create_time,
915 FILETIME *access_time,
916 FILETIME *write_time);
917 gboolean (*setfiletime)(gpointer handle,
918 const FILETIME *create_time,
919 const FILETIME *access_time,
920 const FILETIME *write_time);
921 } io_ops[MONO_W32HANDLE_COUNT]={
922 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
925 file_read, file_write,
926 file_flush, file_seek,
932 {console_getfiletype,
935 NULL, NULL, NULL, NULL, NULL, NULL},
937 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
939 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
941 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
943 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
944 /* socket (will need at least read and write) */
945 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
947 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
949 {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
954 NULL, NULL, NULL, NULL, NULL, NULL},
957 static gboolean lock_while_writing = FALSE;
959 /* Some utility functions.
963 * Check if a file is writable by the current user.
965 * This is is a best effort kind of thing. It assumes a reasonable sane set
966 * of permissions by the underlying OS.
968 * We generally assume that basic unix permission bits are authoritative. Which might not
969 * be the case under systems with extended permissions systems (posix ACLs, SELinux, OSX/iOS sandboxing, etc)
971 * The choice of access as the fallback is due to the expected lower overhead compared to trying to open the file.
973 * The only expected problem with using access are for root, setuid or setgid programs as access is not consistent
974 * under those situations. It's to be expected that this should not happen in practice as those bits are very dangerous
975 * and should not be used with a dynamic runtime.
978 is_file_writable (struct stat *st, const gchar *path)
981 // OS X Finder "locked" or `ls -lO` "uchg".
982 // This only covers one of several cases where an OS X file could be unwritable through special flags.
983 if (st->st_flags & (UF_IMMUTABLE|SF_IMMUTABLE))
987 /* Is it globally writable? */
988 if (st->st_mode & S_IWOTH)
991 /* Am I the owner? */
992 if ((st->st_uid == geteuid ()) && (st->st_mode & S_IWUSR))
995 /* Am I in the same group? */
996 if ((st->st_gid == getegid ()) && (st->st_mode & S_IWGRP))
999 /* Fallback to using access(2). It's not ideal as it might not take into consideration euid/egid
1000 * but it's the only sane option we have on unix.
1002 return access (path, W_OK) == 0;
1006 static guint32 _wapi_stat_to_file_attributes (const gchar *pathname,
1013 /* FIXME: this could definitely be better, but there seems to
1014 * be no pattern to the attributes that are set
1017 /* Sockets (0140000) != Directory (040000) + Regular file (0100000) */
1018 if (S_ISSOCK (buf->st_mode))
1019 buf->st_mode &= ~S_IFSOCK; /* don't consider socket protection */
1021 filename = _wapi_basename (pathname);
1023 if (S_ISDIR (buf->st_mode)) {
1024 attrs = FILE_ATTRIBUTE_DIRECTORY;
1025 if (!is_file_writable (buf, pathname)) {
1026 attrs |= FILE_ATTRIBUTE_READONLY;
1028 if (filename[0] == '.') {
1029 attrs |= FILE_ATTRIBUTE_HIDDEN;
1032 if (!is_file_writable (buf, pathname)) {
1033 attrs = FILE_ATTRIBUTE_READONLY;
1035 if (filename[0] == '.') {
1036 attrs |= FILE_ATTRIBUTE_HIDDEN;
1038 } else if (filename[0] == '.') {
1039 attrs = FILE_ATTRIBUTE_HIDDEN;
1041 attrs = FILE_ATTRIBUTE_NORMAL;
1046 if (S_ISLNK (lbuf->st_mode)) {
1047 attrs |= FILE_ATTRIBUTE_REPARSE_POINT;
1057 _wapi_set_last_error_from_errno (void)
1059 mono_w32error_set_last (mono_w32error_unix_to_win32 (errno));
1062 static void _wapi_set_last_path_error_from_errno (const gchar *dir,
1065 if (errno == ENOENT) {
1066 /* Check the path - if it's a missing directory then
1067 * we need to set PATH_NOT_FOUND not FILE_NOT_FOUND
1073 dirname = _wapi_dirname (path);
1075 dirname = g_strdup (dir);
1078 if (_wapi_access (dirname, F_OK) == 0) {
1079 mono_w32error_set_last (ERROR_FILE_NOT_FOUND);
1081 mono_w32error_set_last (ERROR_PATH_NOT_FOUND);
1086 _wapi_set_last_error_from_errno ();
1092 static void file_close (gpointer handle, gpointer data)
1094 /* FIXME: after mono_w32handle_close is coop-aware, change this to MONO_REQ_GC_UNSAFE_MODE and leave just the switch to SAFE around close() below */
1095 MONO_ENTER_GC_UNSAFE;
1096 MonoW32HandleFile *file_handle = (MonoW32HandleFile *)data;
1097 gint fd = file_handle->fd;
1099 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing file handle %p [%s]", __func__, handle,
1100 file_handle->filename);
1102 if (file_handle->attrs & FILE_FLAG_DELETE_ON_CLOSE)
1103 _wapi_unlink (file_handle->filename);
1105 g_free (file_handle->filename);
1107 if (file_handle->share_info)
1108 file_share_release (file_handle->share_info);
1113 MONO_EXIT_GC_UNSAFE;
1116 static void file_details (gpointer data)
1118 MonoW32HandleFile *file = (MonoW32HandleFile *)data;
1120 g_print ("[%20s] acc: %c%c%c, shr: %c%c%c, attrs: %5u",
1122 file->fileaccess&GENERIC_READ?'R':'.',
1123 file->fileaccess&GENERIC_WRITE?'W':'.',
1124 file->fileaccess&GENERIC_EXECUTE?'X':'.',
1125 file->sharemode&FILE_SHARE_READ?'R':'.',
1126 file->sharemode&FILE_SHARE_WRITE?'W':'.',
1127 file->sharemode&FILE_SHARE_DELETE?'D':'.',
1131 static const gchar* file_typename (void)
1136 static gsize file_typesize (void)
1138 return sizeof (MonoW32HandleFile);
1141 static gint file_getfiletype(void)
1143 return(FILE_TYPE_DISK);
1147 file_read(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
1149 MonoW32HandleFile *file_handle;
1152 MonoThreadInfo *info = mono_thread_info_current ();
1154 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
1155 (gpointer *)&file_handle);
1157 g_warning ("%s: error looking up file handle %p", __func__,
1159 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1163 fd = file_handle->fd;
1164 if(bytesread!=NULL) {
1168 if(!(file_handle->fileaccess & GENERIC_READ) &&
1169 !(file_handle->fileaccess & GENERIC_ALL)) {
1170 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
1171 __func__, handle, file_handle->fileaccess);
1173 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1179 ret = read (fd, buffer, numbytes);
1181 } while (ret == -1 && errno == EINTR &&
1182 !mono_thread_info_is_interrupt_state (info));
1187 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__,
1188 handle, strerror(err));
1189 mono_w32error_set_last (mono_w32error_unix_to_win32 (err));
1193 if (bytesread != NULL) {
1201 file_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
1203 MonoW32HandleFile *file_handle;
1206 off_t current_pos = 0;
1207 MonoThreadInfo *info = mono_thread_info_current ();
1209 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
1210 (gpointer *)&file_handle);
1212 g_warning ("%s: error looking up file handle %p", __func__,
1214 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1218 fd = file_handle->fd;
1220 if(byteswritten!=NULL) {
1224 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
1225 !(file_handle->fileaccess & GENERIC_ALL)) {
1226 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);
1228 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1232 if (lock_while_writing) {
1233 /* Need to lock the region we're about to write to,
1234 * because we only do advisory locking on POSIX
1238 current_pos = lseek (fd, (off_t)0, SEEK_CUR);
1240 if (current_pos == -1) {
1241 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p lseek failed: %s", __func__,
1242 handle, strerror (errno));
1243 _wapi_set_last_error_from_errno ();
1247 if (_wapi_lock_file_region (fd, current_pos,
1248 numbytes) == FALSE) {
1249 /* The error has already been set */
1256 ret = write (fd, buffer, numbytes);
1258 } while (ret == -1 && errno == EINTR &&
1259 !mono_thread_info_is_interrupt_state (info));
1261 if (lock_while_writing) {
1262 _wapi_unlock_file_region (fd, current_pos, numbytes);
1266 if (errno == EINTR) {
1269 _wapi_set_last_error_from_errno ();
1271 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s",
1272 __func__, handle, strerror(errno));
1277 if (byteswritten != NULL) {
1278 *byteswritten = ret;
1283 static gboolean file_flush(gpointer handle)
1285 MonoW32HandleFile *file_handle;
1289 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
1290 (gpointer *)&file_handle);
1292 g_warning ("%s: error looking up file handle %p", __func__,
1294 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1298 fd = file_handle->fd;
1300 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
1301 !(file_handle->fileaccess & GENERIC_ALL)) {
1302 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);
1304 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1312 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fsync of handle %p error: %s", __func__, handle,
1315 _wapi_set_last_error_from_errno ();
1322 static guint32 file_seek(gpointer handle, gint32 movedistance,
1323 gint32 *highmovedistance, gint method)
1325 MonoW32HandleFile *file_handle;
1327 gint64 offset, newpos;
1331 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
1332 (gpointer *)&file_handle);
1334 g_warning ("%s: error looking up file handle %p", __func__,
1336 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1337 return(INVALID_SET_FILE_POINTER);
1340 fd = file_handle->fd;
1342 if(!(file_handle->fileaccess & GENERIC_READ) &&
1343 !(file_handle->fileaccess & GENERIC_WRITE) &&
1344 !(file_handle->fileaccess & GENERIC_ALL)) {
1345 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);
1347 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1348 return(INVALID_SET_FILE_POINTER);
1362 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: invalid seek type %d", __func__, method);
1364 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
1365 return(INVALID_SET_FILE_POINTER);
1368 #ifdef HAVE_LARGE_FILE_SUPPORT
1369 if(highmovedistance==NULL) {
1370 offset=movedistance;
1371 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: setting offset to %lld (low %d)", __func__,
1372 offset, movedistance);
1374 offset=((gint64) *highmovedistance << 32) | (guint32)movedistance;
1376 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);
1379 offset=movedistance;
1382 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: moving handle %p by %lld bytes from %d", __func__,
1383 handle, (long long)offset, whence);
1385 #ifdef PLATFORM_ANDROID
1386 /* bionic doesn't support -D_FILE_OFFSET_BITS=64 */
1388 newpos=lseek64(fd, offset, whence);
1392 newpos=lseek(fd, offset, whence);
1396 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lseek on handle %p returned error %s",
1397 __func__, handle, strerror(errno));
1399 _wapi_set_last_error_from_errno ();
1400 return(INVALID_SET_FILE_POINTER);
1403 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lseek returns %lld", __func__, newpos);
1405 #ifdef HAVE_LARGE_FILE_SUPPORT
1406 ret=newpos & 0xFFFFFFFF;
1407 if(highmovedistance!=NULL) {
1408 *highmovedistance=newpos>>32;
1412 if(highmovedistance!=NULL) {
1413 /* Accurate, but potentially dodgy :-) */
1414 *highmovedistance=0;
1418 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: move of handle %p returning %d/%d", __func__,
1419 handle, ret, highmovedistance==NULL?0:*highmovedistance);
1424 static gboolean file_setendoffile(gpointer handle)
1426 MonoW32HandleFile *file_handle;
1428 struct stat statbuf;
1431 MonoThreadInfo *info = mono_thread_info_current ();
1433 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
1434 (gpointer *)&file_handle);
1436 g_warning ("%s: error looking up file handle %p", __func__,
1438 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1441 fd = file_handle->fd;
1443 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
1444 !(file_handle->fileaccess & GENERIC_ALL)) {
1445 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);
1447 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1451 /* Find the current file position, and the file length. If
1452 * the file position is greater than the length, write to
1453 * extend the file with a hole. If the file position is less
1454 * than the length, truncate the file.
1458 ret=fstat(fd, &statbuf);
1461 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__,
1462 handle, strerror(errno));
1464 _wapi_set_last_error_from_errno ();
1469 pos=lseek(fd, (off_t)0, SEEK_CUR);
1472 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p lseek failed: %s", __func__,
1473 handle, strerror(errno));
1475 _wapi_set_last_error_from_errno ();
1479 #ifdef FTRUNCATE_DOESNT_EXTEND
1480 off_t size = statbuf.st_size;
1481 /* I haven't bothered to write the configure.ac stuff for this
1482 * because I don't know if any platform needs it. I'm leaving
1483 * this code just in case though
1486 /* Extend the file. Use write() here, because some
1487 * manuals say that ftruncate() behaviour is undefined
1488 * when the file needs extending. The POSIX spec says
1489 * that on XSI-conformant systems it extends, so if
1490 * every system we care about conforms, then we can
1495 ret = write (fd, "", 1);
1497 } while (ret == -1 && errno == EINTR &&
1498 !mono_thread_info_is_interrupt_state (info));
1501 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p extend write failed: %s", __func__, handle, strerror(errno));
1503 _wapi_set_last_error_from_errno ();
1507 /* And put the file position back after the write */
1509 ret = lseek (fd, pos, SEEK_SET);
1512 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p second lseek failed: %s",
1513 __func__, handle, strerror(errno));
1515 _wapi_set_last_error_from_errno ();
1521 /* always truncate, because the extend write() adds an extra
1522 * byte to the end of the file
1526 ret=ftruncate(fd, pos);
1529 while (ret==-1 && errno==EINTR && !mono_thread_info_is_interrupt_state (info));
1531 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p ftruncate failed: %s", __func__,
1532 handle, strerror(errno));
1534 _wapi_set_last_error_from_errno ();
1541 static guint32 file_getfilesize(gpointer handle, guint32 *highsize)
1543 MonoW32HandleFile *file_handle;
1545 struct stat statbuf;
1550 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
1551 (gpointer *)&file_handle);
1553 g_warning ("%s: error looking up file handle %p", __func__,
1555 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1556 return(INVALID_FILE_SIZE);
1558 fd = file_handle->fd;
1560 if(!(file_handle->fileaccess & GENERIC_READ) &&
1561 !(file_handle->fileaccess & GENERIC_WRITE) &&
1562 !(file_handle->fileaccess & GENERIC_ALL)) {
1563 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);
1565 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1566 return(INVALID_FILE_SIZE);
1569 /* If the file has a size with the low bits 0xFFFFFFFF the
1570 * caller can't tell if this is an error, so clear the error
1573 mono_w32error_set_last (ERROR_SUCCESS);
1576 ret = fstat(fd, &statbuf);
1579 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__,
1580 handle, strerror(errno));
1582 _wapi_set_last_error_from_errno ();
1583 return(INVALID_FILE_SIZE);
1586 /* fstat indicates block devices as zero-length, so go a different path */
1588 if (S_ISBLK(statbuf.st_mode)) {
1592 res = ioctl (fd, BLKGETSIZE64, &bigsize);
1595 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p ioctl BLKGETSIZE64 failed: %s",
1596 __func__, handle, strerror(errno));
1598 _wapi_set_last_error_from_errno ();
1599 return(INVALID_FILE_SIZE);
1602 size = bigsize & 0xFFFFFFFF;
1603 if (highsize != NULL) {
1604 *highsize = bigsize>>32;
1607 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning block device size %d/%d",
1608 __func__, size, *highsize);
1614 #ifdef HAVE_LARGE_FILE_SUPPORT
1615 size = statbuf.st_size & 0xFFFFFFFF;
1616 if (highsize != NULL) {
1617 *highsize = statbuf.st_size>>32;
1620 if (highsize != NULL) {
1621 /* Accurate, but potentially dodgy :-) */
1624 size = statbuf.st_size;
1627 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning size %d/%d", __func__, size, *highsize);
1632 static gboolean file_getfiletime(gpointer handle, FILETIME *create_time,
1633 FILETIME *access_time,
1634 FILETIME *write_time)
1636 MonoW32HandleFile *file_handle;
1638 struct stat statbuf;
1639 guint64 create_ticks, access_ticks, write_ticks;
1642 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
1643 (gpointer *)&file_handle);
1645 g_warning ("%s: error looking up file handle %p", __func__,
1647 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1650 fd = file_handle->fd;
1652 if(!(file_handle->fileaccess & GENERIC_READ) &&
1653 !(file_handle->fileaccess & GENERIC_ALL)) {
1654 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
1655 __func__, handle, file_handle->fileaccess);
1657 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1662 ret=fstat(fd, &statbuf);
1665 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__, handle,
1668 _wapi_set_last_error_from_errno ();
1672 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: atime: %ld ctime: %ld mtime: %ld", __func__,
1673 statbuf.st_atime, statbuf.st_ctime,
1676 /* Try and guess a meaningful create time by using the older
1679 /* The magic constant comes from msdn documentation
1680 * "Converting a time_t Value to a File Time"
1682 if(statbuf.st_atime < statbuf.st_ctime) {
1683 create_ticks=((guint64)statbuf.st_atime*10000000)
1684 + 116444736000000000ULL;
1686 create_ticks=((guint64)statbuf.st_ctime*10000000)
1687 + 116444736000000000ULL;
1690 access_ticks=((guint64)statbuf.st_atime*10000000)+116444736000000000ULL;
1691 write_ticks=((guint64)statbuf.st_mtime*10000000)+116444736000000000ULL;
1693 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: aticks: %llu cticks: %llu wticks: %llu", __func__,
1694 access_ticks, create_ticks, write_ticks);
1696 if(create_time!=NULL) {
1697 create_time->dwLowDateTime = create_ticks & 0xFFFFFFFF;
1698 create_time->dwHighDateTime = create_ticks >> 32;
1701 if(access_time!=NULL) {
1702 access_time->dwLowDateTime = access_ticks & 0xFFFFFFFF;
1703 access_time->dwHighDateTime = access_ticks >> 32;
1706 if(write_time!=NULL) {
1707 write_time->dwLowDateTime = write_ticks & 0xFFFFFFFF;
1708 write_time->dwHighDateTime = write_ticks >> 32;
1714 static gboolean file_setfiletime(gpointer handle,
1715 const FILETIME *create_time G_GNUC_UNUSED,
1716 const FILETIME *access_time,
1717 const FILETIME *write_time)
1719 MonoW32HandleFile *file_handle;
1721 struct utimbuf utbuf;
1722 struct stat statbuf;
1723 guint64 access_ticks, write_ticks;
1726 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
1727 (gpointer *)&file_handle);
1729 g_warning ("%s: error looking up file handle %p", __func__,
1731 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1734 fd = file_handle->fd;
1736 if(!(file_handle->fileaccess & GENERIC_WRITE) &&
1737 !(file_handle->fileaccess & GENERIC_ALL)) {
1738 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);
1740 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1744 if(file_handle->filename == NULL) {
1745 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p unknown filename", __func__, handle);
1747 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1751 /* Get the current times, so we can put the same times back in
1752 * the event that one of the FileTime structs is NULL
1755 ret=fstat (fd, &statbuf);
1758 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__, handle,
1761 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
1765 if(access_time!=NULL) {
1766 access_ticks=((guint64)access_time->dwHighDateTime << 32) +
1767 access_time->dwLowDateTime;
1768 /* This is (time_t)0. We can actually go to INT_MIN,
1769 * but this will do for now.
1771 if (access_ticks < 116444736000000000ULL) {
1772 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set access time too early",
1774 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
1778 if (sizeof (utbuf.actime) == 4 && ((access_ticks - 116444736000000000ULL) / 10000000) > INT_MAX) {
1779 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set write time that is too big for a 32bits time_t",
1781 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
1785 utbuf.actime=(access_ticks - 116444736000000000ULL) / 10000000;
1787 utbuf.actime=statbuf.st_atime;
1790 if(write_time!=NULL) {
1791 write_ticks=((guint64)write_time->dwHighDateTime << 32) +
1792 write_time->dwLowDateTime;
1793 /* This is (time_t)0. We can actually go to INT_MIN,
1794 * but this will do for now.
1796 if (write_ticks < 116444736000000000ULL) {
1797 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set write time too early",
1799 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
1802 if (sizeof (utbuf.modtime) == 4 && ((write_ticks - 116444736000000000ULL) / 10000000) > INT_MAX) {
1803 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set write time that is too big for a 32bits time_t",
1805 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
1809 utbuf.modtime=(write_ticks - 116444736000000000ULL) / 10000000;
1811 utbuf.modtime=statbuf.st_mtime;
1814 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: setting handle %p access %ld write %ld", __func__,
1815 handle, utbuf.actime, utbuf.modtime);
1817 ret = _wapi_utime (file_handle->filename, &utbuf);
1819 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p [%s] utime failed: %s", __func__,
1820 handle, file_handle->filename, strerror(errno));
1822 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
1829 static void console_close (gpointer handle, gpointer data)
1831 /* FIXME: after mono_w32handle_close is coop-aware, change this to MONO_REQ_GC_UNSAFE_MODE and leave just the switch to SAFE around close() below */
1832 MONO_ENTER_GC_UNSAFE;
1833 MonoW32HandleFile *console_handle = (MonoW32HandleFile *)data;
1834 gint fd = console_handle->fd;
1836 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing console handle %p", __func__, handle);
1838 g_free (console_handle->filename);
1841 if (console_handle->share_info)
1842 file_share_release (console_handle->share_info);
1847 MONO_EXIT_GC_UNSAFE;
1850 static void console_details (gpointer data)
1852 file_details (data);
1855 static const gchar* console_typename (void)
1860 static gsize console_typesize (void)
1862 return sizeof (MonoW32HandleFile);
1865 static gint console_getfiletype(void)
1867 return(FILE_TYPE_CHAR);
1871 console_read(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
1873 MonoW32HandleFile *console_handle;
1876 MonoThreadInfo *info = mono_thread_info_current ();
1878 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_CONSOLE,
1879 (gpointer *)&console_handle);
1881 g_warning ("%s: error looking up console handle %p", __func__,
1883 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1886 fd = console_handle->fd;
1888 if(bytesread!=NULL) {
1892 if(!(console_handle->fileaccess & GENERIC_READ) &&
1893 !(console_handle->fileaccess & GENERIC_ALL)) {
1894 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
1895 __func__, handle, console_handle->fileaccess);
1897 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1903 ret=read(fd, buffer, numbytes);
1905 } while (ret==-1 && errno==EINTR && !mono_thread_info_is_interrupt_state (info));
1908 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__, handle,
1911 _wapi_set_last_error_from_errno ();
1915 if(bytesread!=NULL) {
1923 console_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
1925 MonoW32HandleFile *console_handle;
1928 MonoThreadInfo *info = mono_thread_info_current ();
1930 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_CONSOLE,
1931 (gpointer *)&console_handle);
1933 g_warning ("%s: error looking up console handle %p", __func__,
1935 mono_w32error_set_last (ERROR_INVALID_HANDLE);
1938 fd = console_handle->fd;
1940 if(byteswritten!=NULL) {
1944 if(!(console_handle->fileaccess & GENERIC_WRITE) &&
1945 !(console_handle->fileaccess & GENERIC_ALL)) {
1946 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);
1948 mono_w32error_set_last (ERROR_ACCESS_DENIED);
1954 ret = write(fd, buffer, numbytes);
1956 } while (ret == -1 && errno == EINTR &&
1957 !mono_thread_info_is_interrupt_state (info));
1960 if (errno == EINTR) {
1963 _wapi_set_last_error_from_errno ();
1965 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s",
1966 __func__, handle, strerror(errno));
1971 if(byteswritten!=NULL) {
1978 static const gchar* find_typename (void)
1983 static gsize find_typesize (void)
1985 return sizeof (MonoW32HandleFind);
1988 static void pipe_close (gpointer handle, gpointer data)
1990 /* FIXME: after mono_w32handle_close is coop-aware, change this to MONO_REQ_GC_UNSAFE_MODE and leave just the switch to SAFE around close() below */
1991 MONO_ENTER_GC_UNSAFE;
1992 MonoW32HandleFile *pipe_handle = (MonoW32HandleFile*)data;
1993 gint fd = pipe_handle->fd;
1995 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing pipe handle %p fd %d", __func__, handle, fd);
1997 /* No filename with pipe handles */
1999 if (pipe_handle->share_info)
2000 file_share_release (pipe_handle->share_info);
2005 MONO_EXIT_GC_UNSAFE;
2008 static void pipe_details (gpointer data)
2010 file_details (data);
2013 static const gchar* pipe_typename (void)
2018 static gsize pipe_typesize (void)
2020 return sizeof (MonoW32HandleFile);
2023 static gint pipe_getfiletype(void)
2025 return(FILE_TYPE_PIPE);
2029 pipe_read (gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
2031 MonoW32HandleFile *pipe_handle;
2034 MonoThreadInfo *info = mono_thread_info_current ();
2036 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_PIPE,
2037 (gpointer *)&pipe_handle);
2039 g_warning ("%s: error looking up pipe handle %p", __func__,
2041 mono_w32error_set_last (ERROR_INVALID_HANDLE);
2044 fd = pipe_handle->fd;
2046 if(bytesread!=NULL) {
2050 if(!(pipe_handle->fileaccess & GENERIC_READ) &&
2051 !(pipe_handle->fileaccess & GENERIC_ALL)) {
2052 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
2053 __func__, handle, pipe_handle->fileaccess);
2055 mono_w32error_set_last (ERROR_ACCESS_DENIED);
2059 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: reading up to %d bytes from pipe %p", __func__,
2064 ret=read(fd, buffer, numbytes);
2066 } while (ret==-1 && errno==EINTR && !mono_thread_info_is_interrupt_state (info));
2069 if (errno == EINTR) {
2072 _wapi_set_last_error_from_errno ();
2074 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__,
2075 handle, strerror(errno));
2081 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read %d bytes from pipe %p", __func__, ret, handle);
2083 if(bytesread!=NULL) {
2091 pipe_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
2093 MonoW32HandleFile *pipe_handle;
2096 MonoThreadInfo *info = mono_thread_info_current ();
2098 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_PIPE,
2099 (gpointer *)&pipe_handle);
2101 g_warning ("%s: error looking up pipe handle %p", __func__,
2103 mono_w32error_set_last (ERROR_INVALID_HANDLE);
2106 fd = pipe_handle->fd;
2108 if(byteswritten!=NULL) {
2112 if(!(pipe_handle->fileaccess & GENERIC_WRITE) &&
2113 !(pipe_handle->fileaccess & GENERIC_ALL)) {
2114 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);
2116 mono_w32error_set_last (ERROR_ACCESS_DENIED);
2120 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: writing up to %d bytes to pipe %p", __func__, numbytes,
2125 ret = write (fd, buffer, numbytes);
2127 } while (ret == -1 && errno == EINTR &&
2128 !mono_thread_info_is_interrupt_state (info));
2131 if (errno == EINTR) {
2134 _wapi_set_last_error_from_errno ();
2136 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s", __func__,
2137 handle, strerror(errno));
2142 if(byteswritten!=NULL) {
2149 static gint convert_flags(guint32 fileaccess, guint32 createmode)
2153 switch(fileaccess) {
2160 case GENERIC_READ|GENERIC_WRITE:
2164 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unknown access type 0x%x", __func__,
2169 switch(createmode) {
2171 flags|=O_CREAT|O_EXCL;
2174 flags|=O_CREAT|O_TRUNC;
2181 case TRUNCATE_EXISTING:
2185 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unknown create mode 0x%x", __func__,
2194 static mode_t convert_perms(guint32 sharemode)
2198 if(sharemode&FILE_SHARE_READ) {
2201 if(sharemode&FILE_SHARE_WRITE) {
2209 static gboolean share_allows_open (struct stat *statbuf, guint32 sharemode,
2211 FileShare **share_info)
2213 gboolean file_already_shared;
2214 guint32 file_existing_share, file_existing_access;
2216 file_already_shared = file_share_get (statbuf->st_dev, statbuf->st_ino, sharemode, fileaccess, &file_existing_share, &file_existing_access, share_info);
2218 if (file_already_shared) {
2219 /* The reference to this share info was incremented
2220 * when we looked it up, so be careful to put it back
2221 * if we conclude we can't use this file.
2223 if (file_existing_share == 0) {
2224 /* Quick and easy, no possibility to share */
2225 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);
2227 file_share_release (*share_info);
2232 if (((file_existing_share == FILE_SHARE_READ) &&
2233 (fileaccess != GENERIC_READ)) ||
2234 ((file_existing_share == FILE_SHARE_WRITE) &&
2235 (fileaccess != GENERIC_WRITE))) {
2236 /* New access mode doesn't match up */
2237 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);
2239 file_share_release (*share_info);
2244 if (((file_existing_access & GENERIC_READ) &&
2245 !(sharemode & FILE_SHARE_READ)) ||
2246 ((file_existing_access & GENERIC_WRITE) &&
2247 !(sharemode & FILE_SHARE_WRITE))) {
2248 /* New share mode doesn't match up */
2249 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);
2251 file_share_release (*share_info);
2256 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: New file!", __func__);
2264 share_allows_delete (struct stat *statbuf, FileShare **share_info)
2266 gboolean file_already_shared;
2267 guint32 file_existing_share, file_existing_access;
2269 file_already_shared = file_share_get (statbuf->st_dev, statbuf->st_ino, FILE_SHARE_DELETE, GENERIC_READ, &file_existing_share, &file_existing_access, share_info);
2271 if (file_already_shared) {
2272 /* The reference to this share info was incremented
2273 * when we looked it up, so be careful to put it back
2274 * if we conclude we can't use this file.
2276 if (file_existing_share == 0) {
2277 /* Quick and easy, no possibility to share */
2278 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);
2280 file_share_release (*share_info);
2285 if (!(file_existing_share & FILE_SHARE_DELETE)) {
2286 /* New access mode doesn't match up */
2287 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);
2289 file_share_release (*share_info);
2294 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: New file!", __func__);
2301 mono_w32file_create(const gunichar2 *name, guint32 fileaccess, guint32 sharemode, guint32 createmode, guint32 attrs)
2303 MonoW32HandleFile file_handle = {0};
2305 gint flags=convert_flags(fileaccess, createmode);
2306 /*mode_t perms=convert_perms(sharemode);*/
2307 /* we don't use sharemode, because that relates to sharing of
2308 * the file when the file is open and is already handled by
2309 * other code, perms instead are the on-disk permissions and
2310 * this is a sane default.
2315 MonoW32HandleType handle_type;
2316 struct stat statbuf;
2318 if (attrs & FILE_ATTRIBUTE_TEMPORARY)
2321 if (attrs & FILE_ATTRIBUTE_ENCRYPTED){
2322 mono_w32error_set_last (ERROR_ENCRYPTION_FAILED);
2323 return INVALID_HANDLE_VALUE;
2327 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
2329 mono_w32error_set_last (ERROR_INVALID_NAME);
2330 return(INVALID_HANDLE_VALUE);
2333 filename = mono_unicode_to_external (name);
2334 if (filename == NULL) {
2335 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
2337 mono_w32error_set_last (ERROR_INVALID_NAME);
2338 return(INVALID_HANDLE_VALUE);
2341 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Opening %s with share 0x%x and access 0x%x", __func__,
2342 filename, sharemode, fileaccess);
2344 fd = _wapi_open (filename, flags, perms);
2346 /* If we were trying to open a directory with write permissions
2347 * (e.g. O_WRONLY or O_RDWR), this call will fail with
2348 * EISDIR. However, this is a bit bogus because calls to
2349 * manipulate the directory (e.g. mono_w32file_set_times) will still work on
2350 * the directory because they use other API calls
2351 * (e.g. utime()). Hence, if we failed with the EISDIR error, try
2352 * to open the directory again without write permission.
2354 if (fd == -1 && errno == EISDIR)
2356 /* Try again but don't try to make it writable */
2357 fd = _wapi_open (filename, flags & ~(O_RDWR|O_WRONLY), perms);
2361 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Error opening file %s: %s", __func__, filename,
2363 _wapi_set_last_path_error_from_errno (NULL, filename);
2366 return(INVALID_HANDLE_VALUE);
2369 if (fd >= mono_w32handle_fd_reserve) {
2370 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: File descriptor is too big", __func__);
2372 mono_w32error_set_last (ERROR_TOO_MANY_OPEN_FILES);
2379 return(INVALID_HANDLE_VALUE);
2383 ret = fstat (fd, &statbuf);
2386 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fstat error of file %s: %s", __func__,
2387 filename, strerror (errno));
2388 _wapi_set_last_error_from_errno ();
2394 return(INVALID_HANDLE_VALUE);
2397 if (share_allows_open (&statbuf, sharemode, fileaccess,
2398 &file_handle.share_info) == FALSE) {
2399 mono_w32error_set_last (ERROR_SHARING_VIOLATION);
2405 return (INVALID_HANDLE_VALUE);
2407 if (file_handle.share_info == NULL) {
2408 /* No space, so no more files can be opened */
2409 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: No space in the share table", __func__);
2411 mono_w32error_set_last (ERROR_TOO_MANY_OPEN_FILES);
2417 return(INVALID_HANDLE_VALUE);
2420 file_handle.filename = filename;
2422 file_handle.fd = fd;
2423 file_handle.fileaccess=fileaccess;
2424 file_handle.sharemode=sharemode;
2425 file_handle.attrs=attrs;
2427 #ifdef HAVE_POSIX_FADVISE
2428 if (attrs & FILE_FLAG_SEQUENTIAL_SCAN) {
2430 posix_fadvise (fd, 0, 0, POSIX_FADV_SEQUENTIAL);
2433 if (attrs & FILE_FLAG_RANDOM_ACCESS) {
2435 posix_fadvise (fd, 0, 0, POSIX_FADV_RANDOM);
2441 if (attrs & FILE_FLAG_SEQUENTIAL_SCAN) {
2443 fcntl(fd, F_RDAHEAD, 1);
2449 #define S_ISFIFO(m) ((m & S_IFIFO) != 0)
2451 if (S_ISFIFO (statbuf.st_mode)) {
2452 handle_type = MONO_W32HANDLE_PIPE;
2453 /* maintain invariant that pipes have no filename */
2454 file_handle.filename = NULL;
2457 } else if (S_ISCHR (statbuf.st_mode)) {
2458 handle_type = MONO_W32HANDLE_CONSOLE;
2460 handle_type = MONO_W32HANDLE_FILE;
2463 MONO_ENTER_GC_SAFE; /* FIXME: mono_w32handle_new_fd should be updated with coop transitions */
2464 handle = mono_w32handle_new_fd (handle_type, fd, &file_handle);
2466 if (handle == INVALID_HANDLE_VALUE) {
2467 g_warning ("%s: error creating file handle", __func__);
2473 mono_w32error_set_last (ERROR_GEN_FAILURE);
2474 return(INVALID_HANDLE_VALUE);
2477 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: returning handle %p", __func__, handle);
2483 mono_w32file_close (gpointer handle)
2487 /* FIXME: we transition here and not in file_close, pipe_close,
2488 * console_close because w32handle_close is not coop aware yet, but it
2489 * calls back into w32file. */
2490 res = mono_w32handle_close (handle);
2495 gboolean mono_w32file_delete(const gunichar2 *name)
2499 gboolean ret = FALSE;
2501 struct stat statbuf;
2502 FileShare *shareinfo;
2506 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
2508 mono_w32error_set_last (ERROR_INVALID_NAME);
2512 filename=mono_unicode_to_external(name);
2513 if(filename==NULL) {
2514 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
2516 mono_w32error_set_last (ERROR_INVALID_NAME);
2521 /* Check to make sure sharing allows us to open the file for
2522 * writing. See bug 323389.
2524 * Do the checks that don't need an open file descriptor, for
2525 * simplicity's sake. If we really have to do the full checks
2526 * then we can implement that later.
2528 if (_wapi_stat (filename, &statbuf) < 0) {
2529 _wapi_set_last_path_error_from_errno (NULL, filename);
2534 if (share_allows_open (&statbuf, 0, GENERIC_WRITE,
2535 &shareinfo) == FALSE) {
2536 mono_w32error_set_last (ERROR_SHARING_VIOLATION);
2541 file_share_release (shareinfo);
2544 retval = _wapi_unlink (filename);
2547 /* On linux, calling unlink on an non-existing file in a read-only mount will fail with EROFS.
2548 * The expected behavior is for this function to return FALSE and not trigger an exception.
2549 * To work around this behavior, we stat the file on failure.
2551 * This was supposedly fixed on kernel 3.0 [1] but we could reproduce it with Ubuntu 16.04 which has kernel 4.4.
2552 * We can't remove this workaround until the early 2020's when most Android deviced will have a fix.
2553 * [1] https://github.com/torvalds/linux/commit/50338b889dc504c69e0cb316ac92d1b9e51f3c8a
2555 if (errno == EROFS) {
2557 if (mono_w32file_get_attributes_ex (name, &stat)) //The file exists, so must be due the RO file system
2560 _wapi_set_last_path_error_from_errno (NULL, filename);
2571 MoveFile (gunichar2 *name, gunichar2 *dest_name)
2573 gchar *utf8_name, *utf8_dest_name;
2574 gint result, errno_copy;
2575 struct stat stat_src, stat_dest;
2576 gboolean ret = FALSE;
2577 FileShare *shareinfo;
2580 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
2582 mono_w32error_set_last (ERROR_INVALID_NAME);
2586 utf8_name = mono_unicode_to_external (name);
2587 if (utf8_name == NULL) {
2588 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
2590 mono_w32error_set_last (ERROR_INVALID_NAME);
2594 if(dest_name==NULL) {
2595 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
2598 mono_w32error_set_last (ERROR_INVALID_NAME);
2602 utf8_dest_name = mono_unicode_to_external (dest_name);
2603 if (utf8_dest_name == NULL) {
2604 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
2607 mono_w32error_set_last (ERROR_INVALID_NAME);
2612 * In C# land we check for the existence of src, but not for dest.
2613 * We check it here and return the failure if dest exists and is not
2614 * the same file as src.
2616 if (_wapi_stat (utf8_name, &stat_src) < 0) {
2617 if (errno != ENOENT || _wapi_lstat (utf8_name, &stat_src) < 0) {
2618 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
2620 g_free (utf8_dest_name);
2625 if (!_wapi_stat (utf8_dest_name, &stat_dest)) {
2626 if (stat_dest.st_dev != stat_src.st_dev ||
2627 stat_dest.st_ino != stat_src.st_ino) {
2629 g_free (utf8_dest_name);
2630 mono_w32error_set_last (ERROR_ALREADY_EXISTS);
2635 /* Check to make that we have delete sharing permission.
2636 * See https://bugzilla.xamarin.com/show_bug.cgi?id=17009
2638 * Do the checks that don't need an open file descriptor, for
2639 * simplicity's sake. If we really have to do the full checks
2640 * then we can implement that later.
2642 if (share_allows_delete (&stat_src, &shareinfo) == FALSE) {
2643 mono_w32error_set_last (ERROR_SHARING_VIOLATION);
2647 file_share_release (shareinfo);
2649 result = _wapi_rename (utf8_name, utf8_dest_name);
2653 switch(errno_copy) {
2655 mono_w32error_set_last (ERROR_ALREADY_EXISTS);
2659 /* Ignore here, it is dealt with below */
2663 /* We already know src exists. Must be dest that doesn't exist. */
2664 _wapi_set_last_path_error_from_errno (NULL, utf8_dest_name);
2668 _wapi_set_last_error_from_errno ();
2673 g_free (utf8_dest_name);
2675 if (result != 0 && errno_copy == EXDEV) {
2678 if (S_ISDIR (stat_src.st_mode)) {
2679 mono_w32error_set_last (ERROR_NOT_SAME_DEVICE);
2682 /* Try a copy to the new location, and delete the source */
2683 if (!mono_w32file_copy (name, dest_name, FALSE, ©_error)) {
2684 /* mono_w32file_copy will set the error */
2688 return(mono_w32file_delete (name));
2699 write_file (gint src_fd, gint dest_fd, struct stat *st_src, gboolean report_errors)
2703 gint buf_size = st_src->st_blksize;
2704 MonoThreadInfo *info = mono_thread_info_current ();
2706 buf_size = buf_size < 8192 ? 8192 : (buf_size > 65536 ? 65536 : buf_size);
2707 buf = (gchar *) g_malloc (buf_size);
2711 remain = read (src_fd, buf, buf_size);
2714 if (errno == EINTR && !mono_thread_info_is_interrupt_state (info))
2718 _wapi_set_last_error_from_errno ();
2728 while (remain > 0) {
2730 n = write (dest_fd, wbuf, remain);
2733 if (errno == EINTR && !mono_thread_info_is_interrupt_state (info))
2737 _wapi_set_last_error_from_errno ();
2738 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write failed.", __func__);
2753 CopyFile (const gunichar2 *name, const gunichar2 *dest_name, gboolean fail_if_exists)
2755 gchar *utf8_src, *utf8_dest;
2756 gint src_fd, dest_fd;
2757 struct stat st, dest_st;
2758 struct utimbuf dest_time;
2759 gboolean ret = TRUE;
2764 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
2766 mono_w32error_set_last (ERROR_INVALID_NAME);
2770 utf8_src = mono_unicode_to_external (name);
2771 if (utf8_src == NULL) {
2772 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of source returned NULL",
2775 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
2779 if(dest_name==NULL) {
2780 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: dest is NULL", __func__);
2783 mono_w32error_set_last (ERROR_INVALID_NAME);
2787 utf8_dest = mono_unicode_to_external (dest_name);
2788 if (utf8_dest == NULL) {
2789 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of dest returned NULL",
2792 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
2799 src_fd = _wapi_open (utf8_src, O_RDONLY, 0);
2801 _wapi_set_last_path_error_from_errno (NULL, utf8_src);
2810 syscall_res = fstat (src_fd, &st);
2812 if (syscall_res < 0) {
2813 _wapi_set_last_error_from_errno ();
2824 /* Before trying to open/create the dest, we need to report a 'file busy'
2825 * error if src and dest are actually the same file. We do the check here to take
2826 * advantage of the IOMAP capability */
2827 if (!_wapi_stat (utf8_dest, &dest_st) && st.st_dev == dest_st.st_dev &&
2828 st.st_ino == dest_st.st_ino) {
2836 mono_w32error_set_last (ERROR_SHARING_VIOLATION);
2840 if (fail_if_exists) {
2841 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_EXCL, st.st_mode);
2843 /* FIXME: it kinda sucks that this code path potentially scans
2844 * the directory twice due to the weird mono_w32error_set_last()
2846 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_TRUNC, st.st_mode);
2848 /* The file does not exist, try creating it */
2849 dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_TRUNC, st.st_mode);
2851 /* Apparently this error is set if we
2852 * overwrite the dest file
2854 mono_w32error_set_last (ERROR_ALREADY_EXISTS);
2858 _wapi_set_last_error_from_errno ();
2869 if (!write_file (src_fd, dest_fd, &st, TRUE))
2875 dest_time.modtime = st.st_mtime;
2876 dest_time.actime = st.st_atime;
2878 ret_utime = utime (utf8_dest, &dest_time);
2880 if (ret_utime == -1)
2881 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file [%s] utime failed: %s", __func__, utf8_dest, strerror(errno));
2890 convert_arg_to_utf8 (const gunichar2 *arg, const gchar *arg_name)
2895 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: %s is NULL", __func__, arg_name);
2896 mono_w32error_set_last (ERROR_INVALID_NAME);
2900 utf8_ret = mono_unicode_to_external (arg);
2901 if (utf8_ret == NULL) {
2902 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of %s returned NULL",
2903 __func__, arg_name);
2904 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
2912 ReplaceFile (const gunichar2 *replacedFileName, const gunichar2 *replacementFileName, const gunichar2 *backupFileName, guint32 replaceFlags, gpointer exclude, gpointer reserved)
2914 gint result, backup_fd = -1,replaced_fd = -1;
2915 gchar *utf8_replacedFileName, *utf8_replacementFileName = NULL, *utf8_backupFileName = NULL;
2916 struct stat stBackup;
2917 gboolean ret = FALSE;
2919 if (!(utf8_replacedFileName = convert_arg_to_utf8 (replacedFileName, "replacedFileName")))
2921 if (!(utf8_replacementFileName = convert_arg_to_utf8 (replacementFileName, "replacementFileName")))
2922 goto replace_cleanup;
2923 if (backupFileName != NULL) {
2924 if (!(utf8_backupFileName = convert_arg_to_utf8 (backupFileName, "backupFileName")))
2925 goto replace_cleanup;
2928 if (utf8_backupFileName) {
2929 // Open the backup file for read so we can restore the file if an error occurs.
2930 backup_fd = _wapi_open (utf8_backupFileName, O_RDONLY, 0);
2931 result = _wapi_rename (utf8_replacedFileName, utf8_backupFileName);
2933 goto replace_cleanup;
2936 result = _wapi_rename (utf8_replacementFileName, utf8_replacedFileName);
2938 _wapi_set_last_path_error_from_errno (NULL, utf8_replacementFileName);
2939 _wapi_rename (utf8_backupFileName, utf8_replacedFileName);
2940 if (backup_fd != -1 && !fstat (backup_fd, &stBackup)) {
2941 replaced_fd = _wapi_open (utf8_backupFileName, O_WRONLY | O_CREAT | O_TRUNC,
2944 if (replaced_fd == -1)
2945 goto replace_cleanup;
2947 write_file (backup_fd, replaced_fd, &stBackup, FALSE);
2950 goto replace_cleanup;
2956 g_free (utf8_replacedFileName);
2957 g_free (utf8_replacementFileName);
2958 g_free (utf8_backupFileName);
2959 if (backup_fd != -1) {
2964 if (replaced_fd != -1) {
2966 close (replaced_fd);
2972 static MonoCoopMutex stdhandle_mutex;
2975 _wapi_stdhandle_create (gint fd, const gchar *name)
2979 MonoW32HandleFile file_handle = {0};
2981 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: creating standard handle type %s, fd %d", __func__, name, fd);
2983 /* Check if fd is valid */
2985 flags = fcntl(fd, F_GETFL);
2986 } while (flags == -1 && errno == EINTR);
2989 /* Invalid fd. Not really much point checking for EBADF
2992 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fcntl error on fd %d: %s", __func__, fd, strerror(errno));
2994 mono_w32error_set_last (mono_w32error_unix_to_win32 (errno));
2995 return INVALID_HANDLE_VALUE;
2998 switch (flags & (O_RDONLY|O_WRONLY|O_RDWR)) {
3000 file_handle.fileaccess = GENERIC_READ;
3003 file_handle.fileaccess = GENERIC_WRITE;
3006 file_handle.fileaccess = GENERIC_READ | GENERIC_WRITE;
3009 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Can't figure out flags 0x%x", __func__, flags);
3010 file_handle.fileaccess = 0;
3014 file_handle.fd = fd;
3015 file_handle.filename = g_strdup(name);
3016 /* some default security attributes might be needed */
3017 file_handle.security_attributes = 0;
3019 /* Apparently input handles can't be written to. (I don't
3020 * know if output or error handles can't be read from.)
3023 file_handle.fileaccess &= ~GENERIC_WRITE;
3025 file_handle.sharemode = 0;
3026 file_handle.attrs = 0;
3028 handle = mono_w32handle_new_fd (MONO_W32HANDLE_CONSOLE, fd, &file_handle);
3029 if (handle == INVALID_HANDLE_VALUE) {
3030 g_warning ("%s: error creating file handle", __func__);
3031 mono_w32error_set_last (ERROR_GEN_FAILURE);
3032 return INVALID_HANDLE_VALUE;
3035 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: returning handle %p", __func__, handle);
3041 STD_INPUT_HANDLE = -10,
3042 STD_OUTPUT_HANDLE = -11,
3043 STD_ERROR_HANDLE = -12,
3047 mono_w32file_get_std_handle (gint stdhandle)
3049 MonoW32HandleFile *file_handle;
3056 case STD_INPUT_HANDLE:
3061 case STD_OUTPUT_HANDLE:
3066 case STD_ERROR_HANDLE:
3072 g_assert_not_reached ();
3075 handle = GINT_TO_POINTER (fd);
3077 mono_coop_mutex_lock (&stdhandle_mutex);
3079 ok = mono_w32handle_lookup (handle, MONO_W32HANDLE_CONSOLE,
3080 (gpointer *)&file_handle);
3082 /* Need to create this console handle */
3083 handle = _wapi_stdhandle_create (fd, name);
3085 if (handle == INVALID_HANDLE_VALUE) {
3086 mono_w32error_set_last (ERROR_NO_MORE_FILES);
3092 mono_coop_mutex_unlock (&stdhandle_mutex);
3098 mono_w32file_read (gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
3100 MonoW32HandleType type;
3102 type = mono_w32handle_get_type (handle);
3104 if(io_ops[type].readfile==NULL) {
3105 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3109 return(io_ops[type].readfile (handle, buffer, numbytes, bytesread));
3113 mono_w32file_write (gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
3115 MonoW32HandleType type;
3117 type = mono_w32handle_get_type (handle);
3119 if(io_ops[type].writefile==NULL) {
3120 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3124 return(io_ops[type].writefile (handle, buffer, numbytes, byteswritten));
3128 mono_w32file_flush (gpointer handle)
3130 MonoW32HandleType type;
3132 type = mono_w32handle_get_type (handle);
3134 if(io_ops[type].flushfile==NULL) {
3135 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3139 return(io_ops[type].flushfile (handle));
3143 mono_w32file_truncate (gpointer handle)
3145 MonoW32HandleType type;
3147 type = mono_w32handle_get_type (handle);
3149 if (io_ops[type].setendoffile == NULL) {
3150 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3154 return(io_ops[type].setendoffile (handle));
3158 mono_w32file_seek (gpointer handle, gint32 movedistance, gint32 *highmovedistance, guint32 method)
3160 MonoW32HandleType type;
3162 type = mono_w32handle_get_type (handle);
3164 if (io_ops[type].seek == NULL) {
3165 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3166 return(INVALID_SET_FILE_POINTER);
3169 return(io_ops[type].seek (handle, movedistance, highmovedistance,
3174 mono_w32file_get_type(gpointer handle)
3176 MonoW32HandleType type;
3178 type = mono_w32handle_get_type (handle);
3180 if (io_ops[type].getfiletype == NULL) {
3181 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3182 return(FILE_TYPE_UNKNOWN);
3185 return(io_ops[type].getfiletype ());
3189 GetFileSize(gpointer handle, guint32 *highsize)
3191 MonoW32HandleType type;
3193 type = mono_w32handle_get_type (handle);
3195 if (io_ops[type].getfilesize == NULL) {
3196 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3197 return(INVALID_FILE_SIZE);
3200 return(io_ops[type].getfilesize (handle, highsize));
3204 mono_w32file_get_times(gpointer handle, FILETIME *create_time, FILETIME *access_time, FILETIME *write_time)
3206 MonoW32HandleType type;
3208 type = mono_w32handle_get_type (handle);
3210 if (io_ops[type].getfiletime == NULL) {
3211 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3215 return(io_ops[type].getfiletime (handle, create_time, access_time,
3220 mono_w32file_set_times(gpointer handle, const FILETIME *create_time, const FILETIME *access_time, const FILETIME *write_time)
3222 MonoW32HandleType type;
3224 type = mono_w32handle_get_type (handle);
3226 if (io_ops[type].setfiletime == NULL) {
3227 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3231 return(io_ops[type].setfiletime (handle, create_time, access_time,
3235 /* A tick is a 100-nanosecond interval. File time epoch is Midnight,
3236 * January 1 1601 GMT
3239 #define TICKS_PER_MILLISECOND 10000L
3240 #define TICKS_PER_SECOND 10000000L
3241 #define TICKS_PER_MINUTE 600000000L
3242 #define TICKS_PER_HOUR 36000000000LL
3243 #define TICKS_PER_DAY 864000000000LL
3245 #define isleap(y) ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0))
3247 static const guint16 mon_yday[2][13]={
3248 {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
3249 {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366},
3253 mono_w32file_filetime_to_systemtime(const FILETIME *file_time, SYSTEMTIME *system_time)
3255 gint64 file_ticks, totaldays, rem, y;
3258 if(system_time==NULL) {
3259 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: system_time NULL", __func__);
3261 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
3265 file_ticks=((gint64)file_time->dwHighDateTime << 32) +
3266 file_time->dwLowDateTime;
3268 /* Really compares if file_ticks>=0x8000000000000000
3269 * (LLONG_MAX+1) but we're working with a signed value for the
3270 * year and day calculation to work later
3273 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file_time too big", __func__);
3275 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
3279 totaldays=(file_ticks / TICKS_PER_DAY);
3280 rem = file_ticks % TICKS_PER_DAY;
3281 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld rem: %lld", __func__, totaldays, rem);
3283 system_time->wHour=rem/TICKS_PER_HOUR;
3284 rem %= TICKS_PER_HOUR;
3285 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Hour: %d rem: %lld", __func__, system_time->wHour, rem);
3287 system_time->wMinute = rem / TICKS_PER_MINUTE;
3288 rem %= TICKS_PER_MINUTE;
3289 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Minute: %d rem: %lld", __func__, system_time->wMinute,
3292 system_time->wSecond = rem / TICKS_PER_SECOND;
3293 rem %= TICKS_PER_SECOND;
3294 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Second: %d rem: %lld", __func__, system_time->wSecond,
3297 system_time->wMilliseconds = rem / TICKS_PER_MILLISECOND;
3298 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Milliseconds: %d", __func__,
3299 system_time->wMilliseconds);
3301 /* January 1, 1601 was a Monday, according to Emacs calendar */
3302 system_time->wDayOfWeek = ((1 + totaldays) % 7) + 1;
3303 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Day of week: %d", __func__, system_time->wDayOfWeek);
3305 /* This algorithm to find year and month given days from epoch
3310 #define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
3311 #define LEAPS_THRU_END_OF(y) (DIV(y, 4) - DIV (y, 100) + DIV (y, 400))
3313 while(totaldays < 0 || totaldays >= (isleap(y)?366:365)) {
3314 /* Guess a corrected year, assuming 365 days per year */
3315 gint64 yg = y + totaldays / 365 - (totaldays % 365 < 0);
3316 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld yg: %lld y: %lld", __func__,
3319 g_message("%s: LEAPS(yg): %lld LEAPS(y): %lld", __func__,
3320 LEAPS_THRU_END_OF(yg-1), LEAPS_THRU_END_OF(y-1));
3322 /* Adjust days and y to match the guessed year. */
3323 totaldays -= ((yg - y) * 365
3324 + LEAPS_THRU_END_OF (yg - 1)
3325 - LEAPS_THRU_END_OF (y - 1));
3326 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld", __func__, totaldays);
3328 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: y: %lld", __func__, y);
3331 system_time->wYear = y;
3332 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Year: %d", __func__, system_time->wYear);
3334 ip = mon_yday[isleap(y)];
3336 for(y=11; totaldays < ip[y]; --y) {
3340 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld", __func__, totaldays);
3342 system_time->wMonth = y + 1;
3343 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Month: %d", __func__, system_time->wMonth);
3345 system_time->wDay = totaldays + 1;
3346 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Day: %d", __func__, system_time->wDay);
3352 mono_w32file_find_first (const gunichar2 *pattern, WIN32_FIND_DATA *find_data)
3354 MonoW32HandleFind find_handle = {0};
3356 gchar *utf8_pattern = NULL, *dir_part, *entry_part;
3359 if (pattern == NULL) {
3360 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: pattern is NULL", __func__);
3362 mono_w32error_set_last (ERROR_PATH_NOT_FOUND);
3363 return(INVALID_HANDLE_VALUE);
3366 utf8_pattern = mono_unicode_to_external (pattern);
3367 if (utf8_pattern == NULL) {
3368 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3370 mono_w32error_set_last (ERROR_INVALID_NAME);
3371 return(INVALID_HANDLE_VALUE);
3374 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: looking for [%s]", __func__, utf8_pattern);
3376 /* Figure out which bit of the pattern is the directory */
3377 dir_part = _wapi_dirname (utf8_pattern);
3378 entry_part = _wapi_basename (utf8_pattern);
3381 /* Don't do this check for now, it breaks if directories
3382 * really do have metachars in their names (see bug 58116).
3383 * FIXME: Figure out a better solution to keep some checks...
3385 if (strchr (dir_part, '*') || strchr (dir_part, '?')) {
3386 mono_w32error_set_last (ERROR_INVALID_NAME);
3388 g_free (entry_part);
3389 g_free (utf8_pattern);
3390 return(INVALID_HANDLE_VALUE);
3394 /* The pattern can specify a directory or a set of files.
3396 * The pattern can have wildcard characters ? and *, but only
3397 * in the section after the last directory delimiter. (Return
3398 * ERROR_INVALID_NAME if there are wildcards in earlier path
3399 * sections.) "*" has the usual 0-or-more chars meaning. "?"
3400 * means "match one character", "??" seems to mean "match one
3401 * or two characters", "???" seems to mean "match one, two or
3402 * three characters", etc. Windows will also try and match
3403 * the mangled "short name" of files, so 8 character patterns
3404 * with wildcards will show some surprising results.
3406 * All the written documentation I can find says that '?'
3407 * should only match one character, and doesn't mention '??',
3408 * '???' etc. I'm going to assume that the strict behaviour
3409 * (ie '???' means three and only three characters) is the
3410 * correct one, because that lets me use fnmatch(3) rather
3411 * than mess around with regexes.
3414 find_handle.namelist = NULL;
3415 result = _wapi_io_scandir (dir_part, entry_part,
3416 &find_handle.namelist);
3419 /* No files, which windows seems to call
3422 mono_w32error_set_last (ERROR_FILE_NOT_FOUND);
3423 g_free (utf8_pattern);
3424 g_free (entry_part);
3426 return (INVALID_HANDLE_VALUE);
3430 _wapi_set_last_path_error_from_errno (dir_part, NULL);
3431 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: scandir error: %s", __func__, g_strerror (errno));
3432 g_free (utf8_pattern);
3433 g_free (entry_part);
3435 return (INVALID_HANDLE_VALUE);
3438 g_free (utf8_pattern);
3439 g_free (entry_part);
3441 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Got %d matches", __func__, result);
3443 find_handle.dir_part = dir_part;
3444 find_handle.num = result;
3445 find_handle.count = 0;
3447 handle = mono_w32handle_new (MONO_W32HANDLE_FIND, &find_handle);
3448 if (handle == INVALID_HANDLE_VALUE) {
3449 g_warning ("%s: error creating find handle", __func__);
3451 g_free (entry_part);
3452 g_free (utf8_pattern);
3453 mono_w32error_set_last (ERROR_GEN_FAILURE);
3455 return(INVALID_HANDLE_VALUE);
3458 if (handle != INVALID_HANDLE_VALUE &&
3459 !mono_w32file_find_next (handle, find_data)) {
3460 mono_w32file_find_close (handle);
3461 mono_w32error_set_last (ERROR_NO_MORE_FILES);
3462 handle = INVALID_HANDLE_VALUE;
3469 mono_w32file_find_next (gpointer handle, WIN32_FIND_DATA *find_data)
3471 MonoW32HandleFind *find_handle;
3473 struct stat buf, linkbuf;
3476 gchar *utf8_filename, *utf8_basename;
3477 gunichar2 *utf16_basename;
3480 gboolean ret = FALSE;
3482 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FIND,
3483 (gpointer *)&find_handle);
3485 g_warning ("%s: error looking up find handle %p", __func__,
3487 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3491 mono_w32handle_lock_handle (handle);
3494 if (find_handle->count >= find_handle->num) {
3495 mono_w32error_set_last (ERROR_NO_MORE_FILES);
3499 /* stat next match */
3501 filename = g_build_filename (find_handle->dir_part, find_handle->namelist[find_handle->count ++], NULL);
3503 result = _wapi_stat (filename, &buf);
3504 if (result == -1 && errno == ENOENT) {
3505 /* Might be a dangling symlink */
3506 result = _wapi_lstat (filename, &buf);
3510 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: stat failed: %s", __func__, filename);
3516 result = _wapi_lstat (filename, &linkbuf);
3518 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lstat failed: %s", __func__, filename);
3524 utf8_filename = mono_utf8_from_external (filename);
3525 if (utf8_filename == NULL) {
3526 /* We couldn't turn this filename into utf8 (eg the
3527 * encoding of the name wasn't convertible), so just
3530 g_warning ("%s: Bad encoding for '%s'\nConsider using MONO_EXTERNAL_ENCODINGS\n", __func__, filename);
3537 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Found [%s]", __func__, utf8_filename);
3539 /* fill data block */
3541 if (buf.st_mtime < buf.st_ctime)
3542 create_time = buf.st_mtime;
3544 create_time = buf.st_ctime;
3546 find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, &linkbuf);
3548 time_t_to_filetime (create_time, &find_data->ftCreationTime);
3549 time_t_to_filetime (buf.st_atime, &find_data->ftLastAccessTime);
3550 time_t_to_filetime (buf.st_mtime, &find_data->ftLastWriteTime);
3552 if (find_data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
3553 find_data->nFileSizeHigh = 0;
3554 find_data->nFileSizeLow = 0;
3556 find_data->nFileSizeHigh = buf.st_size >> 32;
3557 find_data->nFileSizeLow = buf.st_size & 0xFFFFFFFF;
3560 find_data->dwReserved0 = 0;
3561 find_data->dwReserved1 = 0;
3563 utf8_basename = _wapi_basename (utf8_filename);
3564 utf16_basename = g_utf8_to_utf16 (utf8_basename, -1, NULL, &bytes,
3566 if(utf16_basename==NULL) {
3567 g_free (utf8_basename);
3568 g_free (utf8_filename);
3573 /* utf16 is 2 * utf8 */
3576 memset (find_data->cFileName, '\0', (MAX_PATH*2));
3578 /* Truncating a utf16 string like this might leave the last
3581 memcpy (find_data->cFileName, utf16_basename,
3582 bytes<(MAX_PATH*2)-2?bytes:(MAX_PATH*2)-2);
3584 find_data->cAlternateFileName [0] = 0; /* not used */
3586 g_free (utf8_basename);
3587 g_free (utf8_filename);
3588 g_free (utf16_basename);
3591 mono_w32handle_unlock_handle (handle);
3597 mono_w32file_find_close (gpointer handle)
3599 MonoW32HandleFind *find_handle;
3602 if (handle == NULL) {
3603 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3607 ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FIND,
3608 (gpointer *)&find_handle);
3610 g_warning ("%s: error looking up find handle %p", __func__,
3612 mono_w32error_set_last (ERROR_INVALID_HANDLE);
3616 mono_w32handle_lock_handle (handle);
3618 g_strfreev (find_handle->namelist);
3619 g_free (find_handle->dir_part);
3621 mono_w32handle_unlock_handle (handle);
3624 mono_w32handle_unref (handle);
3631 mono_w32file_create_directory (const gunichar2 *name)
3637 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3639 mono_w32error_set_last (ERROR_INVALID_NAME);
3643 utf8_name = mono_unicode_to_external (name);
3644 if (utf8_name == NULL) {
3645 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3647 mono_w32error_set_last (ERROR_INVALID_NAME);
3651 result = _wapi_mkdir (utf8_name, 0777);
3658 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3664 mono_w32file_remove_directory (const gunichar2 *name)
3670 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3672 mono_w32error_set_last (ERROR_INVALID_NAME);
3676 utf8_name = mono_unicode_to_external (name);
3677 if (utf8_name == NULL) {
3678 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3680 mono_w32error_set_last (ERROR_INVALID_NAME);
3684 result = _wapi_rmdir (utf8_name);
3686 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3697 mono_w32file_get_attributes (const gunichar2 *name)
3700 struct stat buf, linkbuf;
3705 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3707 mono_w32error_set_last (ERROR_INVALID_NAME);
3711 utf8_name = mono_unicode_to_external (name);
3712 if (utf8_name == NULL) {
3713 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3715 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
3716 return (INVALID_FILE_ATTRIBUTES);
3719 result = _wapi_stat (utf8_name, &buf);
3720 if (result == -1 && (errno == ENOENT || errno == ELOOP)) {
3721 /* Might be a dangling symlink... */
3722 result = _wapi_lstat (utf8_name, &buf);
3726 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3728 return (INVALID_FILE_ATTRIBUTES);
3731 result = _wapi_lstat (utf8_name, &linkbuf);
3733 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3735 return (INVALID_FILE_ATTRIBUTES);
3738 ret = _wapi_stat_to_file_attributes (utf8_name, &buf, &linkbuf);
3746 mono_w32file_get_attributes_ex (const gunichar2 *name, MonoIOStat *stat)
3750 struct stat buf, linkbuf;
3754 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3756 mono_w32error_set_last (ERROR_INVALID_NAME);
3760 utf8_name = mono_unicode_to_external (name);
3761 if (utf8_name == NULL) {
3762 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3764 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
3768 result = _wapi_stat (utf8_name, &buf);
3769 if (result == -1 && errno == ENOENT) {
3770 /* Might be a dangling symlink... */
3771 result = _wapi_lstat (utf8_name, &buf);
3775 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3780 result = _wapi_lstat (utf8_name, &linkbuf);
3782 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3787 /* fill stat block */
3789 stat->attributes = _wapi_stat_to_file_attributes (utf8_name, &buf, &linkbuf);
3790 stat->creation_time = (((guint64) (buf.st_mtime < buf.st_ctime ? buf.st_mtime : buf.st_ctime)) * 10 * 1000 * 1000) + 116444736000000000ULL;
3791 stat->last_access_time = (((guint64) (buf.st_atime)) * 10 * 1000 * 1000) + 116444736000000000ULL;
3792 stat->last_write_time = (((guint64) (buf.st_mtime)) * 10 * 1000 * 1000) + 116444736000000000ULL;
3793 stat->length = (stat->attributes & FILE_ATTRIBUTE_DIRECTORY) ? 0 : buf.st_size;
3800 mono_w32file_set_attributes (const gunichar2 *name, guint32 attrs)
3802 /* FIXME: think of something clever to do on unix */
3808 * Currently we only handle one *internal* case, with a value that is
3809 * not standard: 0x80000000, which means `set executable bit'
3813 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
3815 mono_w32error_set_last (ERROR_INVALID_NAME);
3819 utf8_name = mono_unicode_to_external (name);
3820 if (utf8_name == NULL) {
3821 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
3823 mono_w32error_set_last (ERROR_INVALID_NAME);
3827 result = _wapi_stat (utf8_name, &buf);
3828 if (result == -1 && errno == ENOENT) {
3829 /* Might be a dangling symlink... */
3830 result = _wapi_lstat (utf8_name, &buf);
3834 _wapi_set_last_path_error_from_errno (NULL, utf8_name);
3839 /* Contrary to the documentation, ms allows NORMAL to be
3840 * specified along with other attributes, so dont bother to
3841 * catch that case here.
3843 if (attrs & FILE_ATTRIBUTE_READONLY) {
3844 result = _wapi_chmod (utf8_name, buf.st_mode & ~(S_IWUSR | S_IWOTH | S_IWGRP));
3846 result = _wapi_chmod (utf8_name, buf.st_mode | S_IWUSR);
3849 /* Ignore the other attributes for now */
3851 if (attrs & 0x80000000){
3852 mode_t exec_mask = 0;
3854 if ((buf.st_mode & S_IRUSR) != 0)
3855 exec_mask |= S_IXUSR;
3857 if ((buf.st_mode & S_IRGRP) != 0)
3858 exec_mask |= S_IXGRP;
3860 if ((buf.st_mode & S_IROTH) != 0)
3861 exec_mask |= S_IXOTH;
3864 result = chmod (utf8_name, buf.st_mode | exec_mask);
3867 /* Don't bother to reset executable (might need to change this
3877 mono_w32file_get_cwd (guint32 length, gunichar2 *buffer)
3879 gunichar2 *utf16_path;
3883 if (getcwd ((gchar*)buffer, length) == NULL) {
3884 if (errno == ERANGE) { /*buffer length is not big enough */
3885 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*/
3888 utf16_path = mono_unicode_from_external (path, &bytes);
3889 g_free (utf16_path);
3893 _wapi_set_last_error_from_errno ();
3897 utf16_path = mono_unicode_from_external ((gchar*)buffer, &bytes);
3898 count = (bytes/2)+1;
3899 g_assert (count <= length); /*getcwd must have failed before with ERANGE*/
3901 /* Add the terminator */
3902 memset (buffer, '\0', bytes+2);
3903 memcpy (buffer, utf16_path, bytes);
3905 g_free (utf16_path);
3911 mono_w32file_set_cwd (const gunichar2 *path)
3917 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
3921 utf8_path = mono_unicode_to_external (path);
3922 if (_wapi_chdir (utf8_path) != 0) {
3923 _wapi_set_last_error_from_errno ();
3934 mono_w32file_create_pipe (gpointer *readpipe, gpointer *writepipe, guint32 size)
3936 MonoW32HandleFile pipe_read_handle = {0};
3937 MonoW32HandleFile pipe_write_handle = {0};
3938 gpointer read_handle;
3939 gpointer write_handle;
3943 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Creating pipe", __func__);
3949 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Error creating pipe: %s", __func__,
3952 _wapi_set_last_error_from_errno ();
3956 if (filedes[0] >= mono_w32handle_fd_reserve ||
3957 filedes[1] >= mono_w32handle_fd_reserve) {
3958 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: File descriptor is too big", __func__);
3960 mono_w32error_set_last (ERROR_TOO_MANY_OPEN_FILES);
3970 /* filedes[0] is open for reading, filedes[1] for writing */
3972 pipe_read_handle.fd = filedes [0];
3973 pipe_read_handle.fileaccess = GENERIC_READ;
3974 read_handle = mono_w32handle_new_fd (MONO_W32HANDLE_PIPE, filedes[0],
3976 if (read_handle == INVALID_HANDLE_VALUE) {
3977 g_warning ("%s: error creating pipe read handle", __func__);
3982 mono_w32error_set_last (ERROR_GEN_FAILURE);
3987 pipe_write_handle.fd = filedes [1];
3988 pipe_write_handle.fileaccess = GENERIC_WRITE;
3989 write_handle = mono_w32handle_new_fd (MONO_W32HANDLE_PIPE, filedes[1],
3990 &pipe_write_handle);
3991 if (write_handle == INVALID_HANDLE_VALUE) {
3992 g_warning ("%s: error creating pipe write handle", __func__);
3995 mono_w32handle_unref (read_handle);
4000 mono_w32error_set_last (ERROR_GEN_FAILURE);
4005 *readpipe = read_handle;
4006 *writepipe = write_handle;
4008 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning pipe: read handle %p, write handle %p",
4009 __func__, read_handle, write_handle);
4014 #ifdef HAVE_GETFSSTAT
4015 /* Darwin has getfsstat */
4017 mono_w32file_get_logical_drive (guint32 len, gunichar2 *buf)
4019 struct statfs *stats;
4022 glong length, total = 0;
4026 n = getfsstat (NULL, 0, MNT_NOWAIT);
4030 size = n * sizeof (struct statfs);
4031 stats = (struct statfs *) g_malloc (size);
4035 syscall_res = getfsstat (stats, size, MNT_NOWAIT);
4037 if (syscall_res == -1){
4041 for (i = 0; i < n; i++){
4042 dir = g_utf8_to_utf16 (stats [i].f_mntonname, -1, NULL, &length, NULL);
4043 if (total + length < len){
4044 memcpy (buf + total, dir, sizeof (gunichar2) * length);
4045 buf [total+length] = 0;
4048 total += length + 1;
4057 /* In-place octal sequence replacement */
4059 unescape_octal (gchar *str)
4068 while (*rptr != '\0') {
4069 if (*rptr == '\\') {
4072 c = (*(rptr++) - '0') << 6;
4073 c += (*(rptr++) - '0') << 3;
4074 c += *(rptr++) - '0';
4076 } else if (wptr != rptr) {
4084 static gint32 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf);
4087 #define GET_LOGICAL_DRIVE_STRINGS_BUFFER 512
4088 #define GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER 512
4089 #define GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER 64
4094 guint32 buffer_index;
4095 guint32 mountpoint_index;
4096 guint32 field_number;
4097 guint32 allocated_size;
4098 guint32 fsname_index;
4099 guint32 fstype_index;
4100 gchar mountpoint [GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER + 1];
4101 gchar *mountpoint_allocated;
4102 gchar buffer [GET_LOGICAL_DRIVE_STRINGS_BUFFER];
4103 gchar fsname [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
4104 gchar fstype [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
4107 gboolean check_mount_source;
4108 } LinuxMountInfoParseState;
4110 static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
4111 static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
4112 static void append_to_mountpoint (LinuxMountInfoParseState *state);
4113 static gboolean add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
4116 mono_w32file_get_logical_drive (guint32 len, gunichar2 *buf)
4120 LinuxMountInfoParseState state;
4121 gboolean (*parser)(guint32, gunichar2*, LinuxMountInfoParseState*) = NULL;
4123 memset (buf, 0, len * sizeof (gunichar2));
4125 fd = open ("/proc/self/mountinfo", O_RDONLY);
4128 parser = GetLogicalDriveStrings_MountInfo;
4131 fd = open ("/proc/mounts", O_RDONLY);
4134 parser = GetLogicalDriveStrings_Mounts;
4138 ret = GetLogicalDriveStrings_Mtab (len, buf);
4142 memset (&state, 0, sizeof (LinuxMountInfoParseState));
4143 state.field_number = 1;
4144 state.delimiter = ' ';
4148 state.nbytes = read (fd, state.buffer, GET_LOGICAL_DRIVE_STRINGS_BUFFER);
4150 if (!(state.nbytes > 0))
4152 state.buffer_index = 0;
4154 while ((*parser)(len, buf, &state)) {
4155 if (state.buffer [state.buffer_index] == '\n') {
4156 gboolean quit = add_drive_string (len, buf, &state);
4157 state.field_number = 1;
4158 state.buffer_index++;
4159 if (state.mountpoint_allocated) {
4160 g_free (state.mountpoint_allocated);
4161 state.mountpoint_allocated = NULL;
4181 static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
4185 if (state->field_number == 1)
4186 state->check_mount_source = TRUE;
4188 while (state->buffer_index < (guint32)state->nbytes) {
4189 if (state->buffer [state->buffer_index] == state->delimiter) {
4190 state->field_number++;
4191 switch (state->field_number) {
4193 state->mountpoint_index = 0;
4197 if (state->mountpoint_allocated)
4198 state->mountpoint_allocated [state->mountpoint_index] = 0;
4200 state->mountpoint [state->mountpoint_index] = 0;
4204 ptr = (gchar*)memchr (state->buffer + state->buffer_index, '\n', GET_LOGICAL_DRIVE_STRINGS_BUFFER - state->buffer_index);
4206 state->buffer_index = (ptr - (gchar*)state->buffer) - 1;
4208 state->buffer_index = state->nbytes;
4211 state->buffer_index++;
4213 } else if (state->buffer [state->buffer_index] == '\n')
4216 switch (state->field_number) {
4218 if (state->check_mount_source) {
4219 if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
4220 /* We can ignore the rest, it's a device
4222 state->check_mount_source = FALSE;
4223 state->fsname [state->fsname_index++] = '/';
4226 if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
4227 state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
4232 append_to_mountpoint (state);
4236 if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
4237 state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
4241 state->buffer_index++;
4247 static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
4249 while (state->buffer_index < (guint32)state->nbytes) {
4250 if (state->buffer [state->buffer_index] == state->delimiter) {
4251 state->field_number++;
4252 switch (state->field_number) {
4254 state->mountpoint_index = 0;
4258 if (state->mountpoint_allocated)
4259 state->mountpoint_allocated [state->mountpoint_index] = 0;
4261 state->mountpoint [state->mountpoint_index] = 0;
4265 state->delimiter = '-';
4269 state->delimiter = ' ';
4273 state->check_mount_source = TRUE;
4276 state->buffer_index++;
4278 } else if (state->buffer [state->buffer_index] == '\n')
4281 switch (state->field_number) {
4283 append_to_mountpoint (state);
4287 if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
4288 state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
4292 if (state->check_mount_source) {
4293 if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
4294 /* We can ignore the rest, it's a device
4296 state->check_mount_source = FALSE;
4297 state->fsname [state->fsname_index++] = '/';
4300 if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
4301 state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
4306 state->buffer_index++;
4313 append_to_mountpoint (LinuxMountInfoParseState *state)
4315 gchar ch = state->buffer [state->buffer_index];
4316 if (state->mountpoint_allocated) {
4317 if (state->mountpoint_index >= state->allocated_size) {
4318 guint32 newsize = (state->allocated_size << 1) + 1;
4319 gchar *newbuf = (gchar *)g_malloc0 (newsize * sizeof (gchar));
4321 memcpy (newbuf, state->mountpoint_allocated, state->mountpoint_index);
4322 g_free (state->mountpoint_allocated);
4323 state->mountpoint_allocated = newbuf;
4324 state->allocated_size = newsize;
4326 state->mountpoint_allocated [state->mountpoint_index++] = ch;
4328 if (state->mountpoint_index >= GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER) {
4329 state->allocated_size = (state->mountpoint_index << 1) + 1;
4330 state->mountpoint_allocated = (gchar *)g_malloc0 (state->allocated_size * sizeof (gchar));
4331 memcpy (state->mountpoint_allocated, state->mountpoint, state->mountpoint_index);
4332 state->mountpoint_allocated [state->mountpoint_index++] = ch;
4334 state->mountpoint [state->mountpoint_index++] = ch;
4339 add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
4341 gboolean quit = FALSE;
4342 gboolean ignore_entry;
4344 if (state->fsname_index == 1 && state->fsname [0] == '/')
4345 ignore_entry = FALSE;
4346 else if (memcmp ("overlay", state->fsname, state->fsname_index) == 0 ||
4347 memcmp ("aufs", state->fstype, state->fstype_index) == 0) {
4348 /* Don't ignore overlayfs and aufs - these might be used on Docker
4349 * (https://bugzilla.xamarin.com/show_bug.cgi?id=31021) */
4350 ignore_entry = FALSE;
4351 } else if (state->fsname_index == 0 || memcmp ("none", state->fsname, state->fsname_index) == 0) {
4352 ignore_entry = TRUE;
4353 } else if (state->fstype_index >= 5 && memcmp ("fuse.", state->fstype, 5) == 0) {
4354 /* Ignore GNOME's gvfs */
4355 if (state->fstype_index == 21 && memcmp ("fuse.gvfs-fuse-daemon", state->fstype, state->fstype_index) == 0)
4356 ignore_entry = TRUE;
4358 ignore_entry = FALSE;
4359 } else if (state->fstype_index == 3 && memcmp ("nfs", state->fstype, state->fstype_index) == 0)
4360 ignore_entry = FALSE;
4362 ignore_entry = TRUE;
4364 if (!ignore_entry) {
4367 gchar *mountpoint = state->mountpoint_allocated ? state->mountpoint_allocated : state->mountpoint;
4369 unescape_octal (mountpoint);
4370 dir = g_utf8_to_utf16 (mountpoint, -1, NULL, &length, NULL);
4371 if (state->total + length + 1 > len) {
4373 state->total = len * 2;
4376 memcpy (buf + state->total, dir, sizeof (gunichar2) * length);
4377 state->total += length;
4381 state->fsname_index = 0;
4382 state->fstype_index = 0;
4388 mono_w32file_get_logical_drive (guint32 len, gunichar2 *buf)
4390 return GetLogicalDriveStrings_Mtab (len, buf);
4394 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf)
4397 gunichar2 *ptr, *dir;
4398 glong length, total = 0;
4402 memset (buf, 0, sizeof (gunichar2) * (len + 1));
4407 /* Sigh, mntent and friends don't work well.
4408 * It stops on the first line that doesn't begin with a '/'.
4409 * (linux 2.6.5, libc 2.3.2.ds1-12) - Gonz */
4411 fp = fopen ("/etc/mtab", "rt");
4415 fp = fopen ("/etc/mnttab", "rt");
4425 fgets_res = fgets (buffer, 512, fp);
4432 splitted = g_strsplit (buffer, " ", 0);
4433 if (!*splitted || !*(splitted + 1)) {
4434 g_strfreev (splitted);
4438 unescape_octal (*(splitted + 1));
4439 dir = g_utf8_to_utf16 (*(splitted + 1), -1, NULL, &length, NULL);
4440 g_strfreev (splitted);
4441 if (total + length + 1 > len) {
4446 return len * 2; /* guess */
4449 memcpy (ptr + total, dir, sizeof (gunichar2) * length);
4451 total += length + 1;
4458 /* Commented out, does not work with my mtab!!! - Gonz */
4459 #ifdef NOTENABLED /* HAVE_MNTENT_H */
4463 gunichar2 *ptr, *dir;
4464 glong len, total = 0;
4468 fp = setmntent ("/etc/mtab", "rt");
4472 fp = setmntent ("/etc/mnttab", "rt");
4481 mnt = getmntent (fp);
4485 g_print ("GOT %s\n", mnt->mnt_dir);
4486 dir = g_utf8_to_utf16 (mnt->mnt_dir, &len, NULL, NULL, NULL);
4487 if (total + len + 1 > len) {
4491 return len * 2; /* guess */
4494 memcpy (ptr + total, dir, sizeof (gunichar2) * len);
4508 #if defined(HAVE_STATVFS) || defined(HAVE_STATFS)
4510 mono_w32file_get_disk_free_space (const gunichar2 *path_name, guint64 *free_bytes_avail, guint64 *total_number_of_bytes, guint64 *total_number_of_free_bytes)
4513 struct statvfs fsstat;
4514 #elif defined(HAVE_STATFS)
4515 struct statfs fsstat;
4517 gboolean isreadonly;
4518 gchar *utf8_path_name;
4520 unsigned long block_size;
4522 if (path_name == NULL) {
4523 utf8_path_name = g_strdup (g_get_current_dir());
4524 if (utf8_path_name == NULL) {
4525 mono_w32error_set_last (ERROR_DIRECTORY);
4530 utf8_path_name = mono_unicode_to_external (path_name);
4531 if (utf8_path_name == NULL) {
4532 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
4534 mono_w32error_set_last (ERROR_INVALID_NAME);
4542 ret = statvfs (utf8_path_name, &fsstat);
4544 isreadonly = ((fsstat.f_flag & ST_RDONLY) == ST_RDONLY);
4545 block_size = fsstat.f_frsize;
4546 #elif defined(HAVE_STATFS)
4548 ret = statfs (utf8_path_name, &fsstat);
4550 #if defined (MNT_RDONLY)
4551 isreadonly = ((fsstat.f_flags & MNT_RDONLY) == MNT_RDONLY);
4552 #elif defined (MS_RDONLY)
4553 isreadonly = ((fsstat.f_flags & MS_RDONLY) == MS_RDONLY);
4555 block_size = fsstat.f_bsize;
4557 } while(ret == -1 && errno == EINTR);
4559 g_free(utf8_path_name);
4562 _wapi_set_last_error_from_errno ();
4563 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: statvfs failed: %s", __func__, strerror (errno));
4567 /* total number of free bytes for non-root */
4568 if (free_bytes_avail != NULL) {
4570 *free_bytes_avail = 0;
4573 *free_bytes_avail = block_size * (guint64)fsstat.f_bavail;
4577 /* total number of bytes available for non-root */
4578 if (total_number_of_bytes != NULL) {
4579 *total_number_of_bytes = block_size * (guint64)fsstat.f_blocks;
4582 /* total number of bytes available for root */
4583 if (total_number_of_free_bytes != NULL) {
4585 *total_number_of_free_bytes = 0;
4588 *total_number_of_free_bytes = block_size * (guint64)fsstat.f_bfree;
4596 mono_w32file_get_disk_free_space (const gunichar2 *path_name, guint64 *free_bytes_avail, guint64 *total_number_of_bytes, guint64 *total_number_of_free_bytes)
4598 if (free_bytes_avail != NULL) {
4599 *free_bytes_avail = (guint64) -1;
4602 if (total_number_of_bytes != NULL) {
4603 *total_number_of_bytes = (guint64) -1;
4606 if (total_number_of_free_bytes != NULL) {
4607 *total_number_of_free_bytes = (guint64) -1;
4615 * General Unix support
4620 const long fstypeid;
4622 const gchar* fstype;
4625 static _wapi_drive_type _wapi_drive_types[] = {
4627 { DRIVE_REMOTE, "afp" },
4628 { DRIVE_REMOTE, "autofs" },
4629 { DRIVE_CDROM, "cddafs" },
4630 { DRIVE_CDROM, "cd9660" },
4631 { DRIVE_RAMDISK, "devfs" },
4632 { DRIVE_FIXED, "exfat" },
4633 { DRIVE_RAMDISK, "fdesc" },
4634 { DRIVE_REMOTE, "ftp" },
4635 { DRIVE_FIXED, "hfs" },
4636 { DRIVE_FIXED, "msdos" },
4637 { DRIVE_REMOTE, "nfs" },
4638 { DRIVE_FIXED, "ntfs" },
4639 { DRIVE_REMOTE, "smbfs" },
4640 { DRIVE_FIXED, "udf" },
4641 { DRIVE_REMOTE, "webdav" },
4642 { DRIVE_UNKNOWN, NULL }
4644 { DRIVE_FIXED, ADFS_SUPER_MAGIC, "adfs"},
4645 { DRIVE_FIXED, AFFS_SUPER_MAGIC, "affs"},
4646 { DRIVE_REMOTE, AFS_SUPER_MAGIC, "afs"},
4647 { DRIVE_RAMDISK, AUTOFS_SUPER_MAGIC, "autofs"},
4648 { DRIVE_RAMDISK, AUTOFS_SBI_MAGIC, "autofs4"},
4649 { DRIVE_REMOTE, CODA_SUPER_MAGIC, "coda" },
4650 { DRIVE_RAMDISK, CRAMFS_MAGIC, "cramfs"},
4651 { DRIVE_RAMDISK, CRAMFS_MAGIC_WEND, "cramfs"},
4652 { DRIVE_REMOTE, CIFS_MAGIC_NUMBER, "cifs"},
4653 { DRIVE_RAMDISK, DEBUGFS_MAGIC, "debugfs"},
4654 { DRIVE_RAMDISK, SYSFS_MAGIC, "sysfs"},
4655 { DRIVE_RAMDISK, SECURITYFS_MAGIC, "securityfs"},
4656 { DRIVE_RAMDISK, SELINUX_MAGIC, "selinuxfs"},
4657 { DRIVE_RAMDISK, RAMFS_MAGIC, "ramfs"},
4658 { DRIVE_FIXED, SQUASHFS_MAGIC, "squashfs"},
4659 { DRIVE_FIXED, EFS_SUPER_MAGIC, "efs"},
4660 { DRIVE_FIXED, EXT2_SUPER_MAGIC, "ext"},
4661 { DRIVE_FIXED, EXT3_SUPER_MAGIC, "ext"},
4662 { DRIVE_FIXED, EXT4_SUPER_MAGIC, "ext"},
4663 { DRIVE_REMOTE, XENFS_SUPER_MAGIC, "xenfs"},
4664 { DRIVE_FIXED, BTRFS_SUPER_MAGIC, "btrfs"},
4665 { DRIVE_FIXED, HFS_SUPER_MAGIC, "hfs"},
4666 { DRIVE_FIXED, HFSPLUS_SUPER_MAGIC, "hfsplus"},
4667 { DRIVE_FIXED, HPFS_SUPER_MAGIC, "hpfs"},
4668 { DRIVE_RAMDISK, HUGETLBFS_MAGIC, "hugetlbfs"},
4669 { DRIVE_CDROM, ISOFS_SUPER_MAGIC, "iso"},
4670 { DRIVE_FIXED, JFFS2_SUPER_MAGIC, "jffs2"},
4671 { DRIVE_RAMDISK, ANON_INODE_FS_MAGIC, "anon_inode"},
4672 { DRIVE_FIXED, JFS_SUPER_MAGIC, "jfs"},
4673 { DRIVE_FIXED, MINIX_SUPER_MAGIC, "minix"},
4674 { DRIVE_FIXED, MINIX_SUPER_MAGIC2, "minix v2"},
4675 { DRIVE_FIXED, MINIX2_SUPER_MAGIC, "minix2"},
4676 { DRIVE_FIXED, MINIX2_SUPER_MAGIC2, "minix2 v2"},
4677 { DRIVE_FIXED, MINIX3_SUPER_MAGIC, "minix3"},
4678 { DRIVE_FIXED, MSDOS_SUPER_MAGIC, "msdos"},
4679 { DRIVE_REMOTE, NCP_SUPER_MAGIC, "ncp"},
4680 { DRIVE_REMOTE, NFS_SUPER_MAGIC, "nfs"},
4681 { DRIVE_FIXED, NTFS_SB_MAGIC, "ntfs"},
4682 { DRIVE_RAMDISK, OPENPROM_SUPER_MAGIC, "openpromfs"},
4683 { DRIVE_RAMDISK, PROC_SUPER_MAGIC, "proc"},
4684 { DRIVE_FIXED, QNX4_SUPER_MAGIC, "qnx4"},
4685 { DRIVE_FIXED, REISERFS_SUPER_MAGIC, "reiserfs"},
4686 { DRIVE_RAMDISK, ROMFS_MAGIC, "romfs"},
4687 { DRIVE_REMOTE, SMB_SUPER_MAGIC, "samba"},
4688 { DRIVE_RAMDISK, CGROUP_SUPER_MAGIC, "cgroupfs"},
4689 { DRIVE_RAMDISK, FUTEXFS_SUPER_MAGIC, "futexfs"},
4690 { DRIVE_FIXED, SYSV2_SUPER_MAGIC, "sysv2"},
4691 { DRIVE_FIXED, SYSV4_SUPER_MAGIC, "sysv4"},
4692 { DRIVE_RAMDISK, TMPFS_MAGIC, "tmpfs"},
4693 { DRIVE_RAMDISK, DEVPTS_SUPER_MAGIC, "devpts"},
4694 { DRIVE_CDROM, UDF_SUPER_MAGIC, "udf"},
4695 { DRIVE_FIXED, UFS_MAGIC, "ufs"},
4696 { DRIVE_FIXED, UFS_MAGIC_BW, "ufs"},
4697 { DRIVE_FIXED, UFS2_MAGIC, "ufs2"},
4698 { DRIVE_FIXED, UFS_CIGAM, "ufs"},
4699 { DRIVE_RAMDISK, USBDEVICE_SUPER_MAGIC, "usbdev"},
4700 { DRIVE_FIXED, XENIX_SUPER_MAGIC, "xenix"},
4701 { DRIVE_FIXED, XFS_SB_MAGIC, "xfs"},
4702 { DRIVE_RAMDISK, FUSE_SUPER_MAGIC, "fuse"},
4703 { DRIVE_FIXED, V9FS_MAGIC, "9p"},
4704 { DRIVE_REMOTE, CEPH_SUPER_MAGIC, "ceph"},
4705 { DRIVE_RAMDISK, CONFIGFS_MAGIC, "configfs"},
4706 { DRIVE_RAMDISK, ECRYPTFS_SUPER_MAGIC, "eCryptfs"},
4707 { DRIVE_FIXED, EXOFS_SUPER_MAGIC, "exofs"},
4708 { DRIVE_FIXED, VXFS_SUPER_MAGIC, "vxfs"},
4709 { DRIVE_FIXED, VXFS_OLT_MAGIC, "vxfs_olt"},
4710 { DRIVE_REMOTE, GFS2_MAGIC, "gfs2"},
4711 { DRIVE_FIXED, LOGFS_MAGIC_U32, "logfs"},
4712 { DRIVE_FIXED, OCFS2_SUPER_MAGIC, "ocfs2"},
4713 { DRIVE_FIXED, OMFS_MAGIC, "omfs"},
4714 { DRIVE_FIXED, UBIFS_SUPER_MAGIC, "ubifs"},
4715 { DRIVE_UNKNOWN, 0, NULL}
4717 { DRIVE_RAMDISK, "ramfs" },
4718 { DRIVE_RAMDISK, "tmpfs" },
4719 { DRIVE_RAMDISK, "proc" },
4720 { DRIVE_RAMDISK, "sysfs" },
4721 { DRIVE_RAMDISK, "debugfs" },
4722 { DRIVE_RAMDISK, "devpts" },
4723 { DRIVE_RAMDISK, "securityfs" },
4724 { DRIVE_CDROM, "iso9660" },
4725 { DRIVE_FIXED, "ext2" },
4726 { DRIVE_FIXED, "ext3" },
4727 { DRIVE_FIXED, "ext4" },
4728 { DRIVE_FIXED, "sysv" },
4729 { DRIVE_FIXED, "reiserfs" },
4730 { DRIVE_FIXED, "ufs" },
4731 { DRIVE_FIXED, "vfat" },
4732 { DRIVE_FIXED, "msdos" },
4733 { DRIVE_FIXED, "udf" },
4734 { DRIVE_FIXED, "hfs" },
4735 { DRIVE_FIXED, "hpfs" },
4736 { DRIVE_FIXED, "qnx4" },
4737 { DRIVE_FIXED, "ntfs" },
4738 { DRIVE_FIXED, "ntfs-3g" },
4739 { DRIVE_REMOTE, "smbfs" },
4740 { DRIVE_REMOTE, "fuse" },
4741 { DRIVE_REMOTE, "nfs" },
4742 { DRIVE_REMOTE, "nfs4" },
4743 { DRIVE_REMOTE, "cifs" },
4744 { DRIVE_REMOTE, "ncpfs" },
4745 { DRIVE_REMOTE, "coda" },
4746 { DRIVE_REMOTE, "afs" },
4747 { DRIVE_UNKNOWN, NULL }
4752 static guint32 _wapi_get_drive_type(long f_type)
4754 _wapi_drive_type *current;
4756 current = &_wapi_drive_types[0];
4757 while (current->drive_type != DRIVE_UNKNOWN) {
4758 if (current->fstypeid == f_type)
4759 return current->drive_type;
4763 return DRIVE_UNKNOWN;
4766 static guint32 _wapi_get_drive_type(const gchar* fstype)
4768 _wapi_drive_type *current;
4770 current = &_wapi_drive_types[0];
4771 while (current->drive_type != DRIVE_UNKNOWN) {
4772 if (strcmp (current->fstype, fstype) == 0)
4778 return current->drive_type;
4782 #if defined (PLATFORM_MACOSX) || defined (__linux__)
4784 GetDriveTypeFromPath (const gchar *utf8_root_path_name)
4790 res = statfs (utf8_root_path_name, &buf);
4793 return DRIVE_UNKNOWN;
4795 return _wapi_get_drive_type (buf.f_fstypename);
4797 return _wapi_get_drive_type (buf.f_type);
4802 GetDriveTypeFromPath (const gchar *utf8_root_path_name)
4810 fp = fopen ("/etc/mtab", "rt");
4814 fp = fopen ("/etc/mnttab", "rt");
4817 return(DRIVE_UNKNOWN);
4820 drive_type = DRIVE_NO_ROOT_DIR;
4824 fgets_res = fgets (buffer, 512, fp);
4826 if (fgets_res == NULL)
4828 splitted = g_strsplit (buffer, " ", 0);
4829 if (!*splitted || !*(splitted + 1) || !*(splitted + 2)) {
4830 g_strfreev (splitted);
4834 /* compare given root_path_name with the one from mtab,
4835 if length of utf8_root_path_name is zero it must be the root dir */
4836 if (strcmp (*(splitted + 1), utf8_root_path_name) == 0 ||
4837 (strcmp (*(splitted + 1), "/") == 0 && strlen (utf8_root_path_name) == 0)) {
4838 drive_type = _wapi_get_drive_type (*(splitted + 2));
4839 /* it is possible this path might be mounted again with
4840 a known type...keep looking */
4841 if (drive_type != DRIVE_UNKNOWN) {
4842 g_strfreev (splitted);
4847 g_strfreev (splitted);
4858 mono_w32file_get_drive_type(const gunichar2 *root_path_name)
4860 gchar *utf8_root_path_name;
4863 if (root_path_name == NULL) {
4864 utf8_root_path_name = g_strdup (g_get_current_dir());
4865 if (utf8_root_path_name == NULL) {
4866 return(DRIVE_NO_ROOT_DIR);
4870 utf8_root_path_name = mono_unicode_to_external (root_path_name);
4871 if (utf8_root_path_name == NULL) {
4872 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
4873 return(DRIVE_NO_ROOT_DIR);
4876 /* strip trailing slash for compare below */
4877 if (g_str_has_suffix(utf8_root_path_name, "/") && utf8_root_path_name [1] != 0) {
4878 utf8_root_path_name[strlen(utf8_root_path_name) - 1] = 0;
4881 drive_type = GetDriveTypeFromPath (utf8_root_path_name);
4882 g_free (utf8_root_path_name);
4884 return (drive_type);
4887 #if defined (PLATFORM_MACOSX) || defined (__linux__) || defined(PLATFORM_BSD) || defined(__FreeBSD_kernel__) || defined(__HAIKU__)
4889 get_fstypename (gchar *utfpath)
4891 #if defined (PLATFORM_MACOSX) || defined (__linux__)
4894 _wapi_drive_type *current;
4898 statfs_res = statfs (utfpath, &stat);
4900 if (statfs_res == -1)
4903 return g_strdup (stat.f_fstypename);
4905 current = &_wapi_drive_types[0];
4906 while (current->drive_type != DRIVE_UNKNOWN) {
4907 if (stat.f_type == current->fstypeid)
4908 return g_strdup (current->fstype);
4918 /* Linux has struct statfs which has a different layout */
4920 mono_w32file_get_volume_information (const gunichar2 *path, gunichar2 *volumename, gint volumesize, gint *outserial, gint *maxcomp, gint *fsflags, gunichar2 *fsbuffer, gint fsbuffersize)
4924 gboolean status = FALSE;
4927 // We only support getting the file system type
4928 if (fsbuffer == NULL)
4931 utfpath = mono_unicode_to_external (path);
4932 if ((fstypename = get_fstypename (utfpath)) != NULL){
4933 gunichar2 *ret = g_utf8_to_utf16 (fstypename, -1, NULL, &len, NULL);
4934 if (ret != NULL && len < fsbuffersize){
4935 memcpy (fsbuffer, ret, len * sizeof (gunichar2));
4941 g_free (fstypename);
4949 LockFile (gpointer handle, guint32 offset_low, guint32 offset_high, guint32 length_low, guint32 length_high)
4951 MonoW32HandleFile *file_handle;
4952 off_t offset, length;
4954 if (!mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE, (gpointer *)&file_handle)) {
4955 g_warning ("%s: error looking up file handle %p", __func__, handle);
4956 mono_w32error_set_last (ERROR_INVALID_HANDLE);
4960 if (!(file_handle->fileaccess & GENERIC_READ) && !(file_handle->fileaccess & GENERIC_WRITE) && !(file_handle->fileaccess & GENERIC_ALL)) {
4961 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);
4962 mono_w32error_set_last (ERROR_ACCESS_DENIED);
4966 #ifdef HAVE_LARGE_FILE_SUPPORT
4967 offset = ((gint64)offset_high << 32) | offset_low;
4968 length = ((gint64)length_high << 32) | length_low;
4970 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Locking handle %p, offset %lld, length %lld", __func__, handle, offset, length);
4972 if (offset_high > 0 || length_high > 0) {
4973 mono_w32error_set_last (ERROR_INVALID_PARAMETER);
4976 offset = offset_low;
4977 length = length_low;
4979 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Locking handle %p, offset %ld, length %ld", __func__, handle, offset, length);
4982 return _wapi_lock_file_region (GPOINTER_TO_UINT(handle), offset, length);
4986 UnlockFile (gpointer handle, guint32 offset_low, guint32 offset_high, guint32 length_low, guint32 length_high)
4988 MonoW32HandleFile *file_handle;
4989 off_t offset, length;
4991 if (!mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE, (gpointer *)&file_handle)) {
4992 g_warning ("%s: error looking up file handle %p", __func__, handle);
4993 mono_w32error_set_last (ERROR_INVALID_HANDLE);
4997 if (!(file_handle->fileaccess & GENERIC_READ) && !(file_handle->fileaccess & GENERIC_WRITE) && !(file_handle->fileaccess & GENERIC_ALL)) {
4998 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);
4999 mono_w32error_set_last (ERROR_ACCESS_DENIED);
5003 #ifdef HAVE_LARGE_FILE_SUPPORT
5004 offset = ((gint64)offset_high << 32) | offset_low;
5005 length = ((gint64)length_high << 32) | length_low;
5007 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unlocking handle %p, offset %lld, length %lld", __func__, handle, offset, length);
5009 offset = offset_low;
5010 length = length_low;
5012 mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unlocking handle %p, offset %ld, length %ld", __func__, handle, offset, length);
5015 return _wapi_unlock_file_region (GPOINTER_TO_UINT(handle), offset, length);
5019 mono_w32file_init (void)
5021 mono_coop_mutex_init (&stdhandle_mutex);
5022 mono_coop_mutex_init (&file_share_mutex);
5024 mono_w32handle_register_ops (MONO_W32HANDLE_FILE, &_wapi_file_ops);
5025 mono_w32handle_register_ops (MONO_W32HANDLE_CONSOLE, &_wapi_console_ops);
5026 mono_w32handle_register_ops (MONO_W32HANDLE_FIND, &_wapi_find_ops);
5027 mono_w32handle_register_ops (MONO_W32HANDLE_PIPE, &_wapi_pipe_ops);
5029 /* mono_w32handle_register_capabilities (MONO_W32HANDLE_FILE, */
5030 /* MONO_W32HANDLE_CAP_WAIT); */
5031 /* mono_w32handle_register_capabilities (MONO_W32HANDLE_CONSOLE, */
5032 /* MONO_W32HANDLE_CAP_WAIT); */
5034 if (g_hasenv ("MONO_STRICT_IO_EMULATION"))
5035 lock_while_writing = TRUE;
5039 mono_w32file_cleanup (void)
5041 mono_coop_mutex_destroy (&file_share_mutex);
5043 if (file_share_table)
5044 g_hash_table_destroy (file_share_table);
5048 mono_w32file_move (gunichar2 *path, gunichar2 *dest, gint32 *error)
5052 result = MoveFile (path, dest);
5054 *error = mono_w32error_get_last ();
5059 mono_w32file_copy (gunichar2 *path, gunichar2 *dest, gboolean overwrite, gint32 *error)
5063 result = CopyFile (path, dest, !overwrite);
5065 *error = mono_w32error_get_last ();
5071 mono_w32file_replace (gunichar2 *destinationFileName, gunichar2 *sourceFileName, gunichar2 *destinationBackupFileName, guint32 flags, gint32 *error)
5075 result = ReplaceFile (destinationFileName, sourceFileName, destinationBackupFileName, flags, NULL, NULL);
5077 *error = mono_w32error_get_last ();
5082 mono_w32file_get_file_size (gpointer handle, gint32 *error)
5087 length = GetFileSize (handle, &length_hi);
5088 if(length==INVALID_FILE_SIZE) {
5089 *error=mono_w32error_get_last ();
5092 return length | ((gint64)length_hi << 32);
5096 mono_w32file_lock (gpointer handle, gint64 position, gint64 length, gint32 *error)
5100 result = LockFile (handle, position & 0xFFFFFFFF, position >> 32, length & 0xFFFFFFFF, length >> 32);
5102 *error = mono_w32error_get_last ();
5107 mono_w32file_unlock (gpointer handle, gint64 position, gint64 length, gint32 *error)
5111 result = UnlockFile (handle, position & 0xFFFFFFFF, position >> 32, length & 0xFFFFFFFF, length >> 32);
5113 *error = mono_w32error_get_last ();
5118 mono_w32file_get_console_input (void)
5120 return mono_w32file_get_std_handle (STD_INPUT_HANDLE);
5124 mono_w32file_get_console_output (void)
5126 return mono_w32file_get_std_handle (STD_OUTPUT_HANDLE);
5130 mono_w32file_get_console_error (void)
5132 return mono_w32file_get_std_handle (STD_ERROR_HANDLE);