+
+#include <config.h>
+#include <glib.h>
+
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+#ifdef HAVE_SYS_STATVFS_H
+#include <sys/statvfs.h>
+#endif
+#if defined(HAVE_SYS_STATFS_H)
+#include <sys/statfs.h>
+#endif
+#if defined(HAVE_SYS_PARAM_H) && defined(HAVE_SYS_MOUNT_H)
+#include <sys/param.h>
+#include <sys/mount.h>
+#endif
+#include <sys/types.h>
+#include <stdio.h>
+#include <utime.h>
+#ifdef __linux__
+#include <sys/ioctl.h>
+#include <linux/fs.h>
+#include <mono/utils/linux_magic.h>
+#endif
+#include <sys/time.h>
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+#endif
+
+#include "w32file.h"
+#include "w32file-internals.h"
+
+#include "w32file-unix-glob.h"
+#include "w32handle.h"
+#include "utils/mono-io-portability.h"
+#include "utils/mono-logger-internals.h"
+#include "utils/mono-os-mutex.h"
+#include "utils/mono-threads.h"
+#include "utils/mono-threads-api.h"
+#include "utils/strenc.h"
+
+typedef struct {
+ guint64 device;
+ guint64 inode;
+ pid_t opened_by_pid;
+ guint32 sharemode;
+ guint32 access;
+ guint32 handle_refs;
+ guint32 timestamp;
+} FileShare;
+
+/* Currently used for both FILE, CONSOLE and PIPE handle types.
+ * This may have to change in future. */
+typedef struct {
+ gchar *filename;
+ FileShare *share_info; /* Pointer into shared mem */
+ gint fd;
+ guint32 security_attributes;
+ guint32 fileaccess;
+ guint32 sharemode;
+ guint32 attrs;
+} MonoW32HandleFile;
+
+typedef struct {
+ gchar **namelist;
+ gchar *dir_part;
+ gint num;
+ gsize count;
+} MonoW32HandleFind;
+
+/*
+ * If SHM is disabled, this will point to a hash of FileShare structures, otherwise
+ * it will be NULL. We use this instead of _wapi_fileshare_layout to avoid allocating a
+ * 4MB array.
+ */
+static GHashTable *file_share_table;
+static mono_mutex_t file_share_mutex;
+
+static void
+time_t_to_filetime (time_t timeval, FILETIME *filetime)
+{
+ guint64 ticks;
+
+ ticks = ((guint64)timeval * 10000000) + 116444736000000000ULL;
+ filetime->dwLowDateTime = ticks & 0xFFFFFFFF;
+ filetime->dwHighDateTime = ticks >> 32;
+}
+
+static void
+file_share_release (FileShare *share_info)
+{
+ /* Prevent new entries racing with us */
+ mono_os_mutex_lock (&file_share_mutex);
+
+ g_assert (share_info->handle_refs > 0);
+ share_info->handle_refs -= 1;
+
+ if (share_info->handle_refs == 0)
+ g_hash_table_remove (file_share_table, share_info);
+
+ mono_os_mutex_unlock (&file_share_mutex);
+}
+
+static gint
+file_share_equal (gconstpointer ka, gconstpointer kb)
+{
+ const FileShare *s1 = (const FileShare *)ka;
+ const FileShare *s2 = (const FileShare *)kb;
+
+ return (s1->device == s2->device && s1->inode == s2->inode) ? 1 : 0;
+}
+
+static guint
+file_share_hash (gconstpointer data)
+{
+ const FileShare *s = (const FileShare *)data;
+
+ return s->inode;
+}
+
+static gboolean
+file_share_get (guint64 device, guint64 inode, guint32 new_sharemode, guint32 new_access,
+ guint32 *old_sharemode, guint32 *old_access, FileShare **share_info)
+{
+ FileShare *file_share;
+ gboolean exists = FALSE;
+
+ /* Prevent new entries racing with us */
+ mono_os_mutex_lock (&file_share_mutex);
+
+ FileShare tmp;
+
+ /*
+ * Instead of allocating a 4MB array, we use a hash table to keep track of this
+ * info. This is needed even if SHM is disabled, to track sharing inside
+ * the current process.
+ */
+ if (!file_share_table)
+ file_share_table = g_hash_table_new_full (file_share_hash, file_share_equal, NULL, g_free);
+
+ tmp.device = device;
+ tmp.inode = inode;
+
+ file_share = (FileShare *)g_hash_table_lookup (file_share_table, &tmp);
+ if (file_share) {
+ *old_sharemode = file_share->sharemode;
+ *old_access = file_share->access;
+ *share_info = file_share;
+
+ g_assert (file_share->handle_refs > 0);
+ file_share->handle_refs += 1;
+
+ exists = TRUE;
+ } else {
+ file_share = g_new0 (FileShare, 1);
+
+ file_share->device = device;
+ file_share->inode = inode;
+ file_share->opened_by_pid = wapi_getpid ();
+ file_share->sharemode = new_sharemode;
+ file_share->access = new_access;
+ file_share->handle_refs = 1;
+ *share_info = file_share;
+
+ g_hash_table_insert (file_share_table, file_share, file_share);
+ }
+
+ mono_os_mutex_unlock (&file_share_mutex);
+
+ return(exists);
+}
+
+static gint
+_wapi_open (const gchar *pathname, gint flags, mode_t mode)
+{
+ gint fd;
+ gchar *located_filename;
+
+ if (flags & O_CREAT) {
+ located_filename = mono_portability_find_file (pathname, FALSE);
+ if (located_filename == NULL) {
+ fd = open (pathname, flags, mode);
+ } else {
+ fd = open (located_filename, flags, mode);
+ g_free (located_filename);
+ }
+ } else {
+ fd = open (pathname, flags, mode);
+ if (fd == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ located_filename = mono_portability_find_file (pathname, TRUE);
+
+ if (located_filename == NULL) {
+ errno = saved_errno;
+ return -1;
+ }
+
+ fd = open (located_filename, flags, mode);
+ g_free (located_filename);
+ }
+ }
+
+ return(fd);
+}
+
+static gint
+_wapi_access (const gchar *pathname, gint mode)
+{
+ gint ret;
+
+ ret = access (pathname, mode);
+ if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ gchar *located_filename = mono_portability_find_file (pathname, TRUE);
+
+ if (located_filename == NULL) {
+ errno = saved_errno;
+ return -1;
+ }
+
+ ret = access (located_filename, mode);
+ g_free (located_filename);
+ }
+
+ return ret;
+}
+
+static gint
+_wapi_chmod (const gchar *pathname, mode_t mode)
+{
+ gint ret;
+
+ ret = chmod (pathname, mode);
+ if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ gchar *located_filename = mono_portability_find_file (pathname, TRUE);
+
+ if (located_filename == NULL) {
+ errno = saved_errno;
+ return -1;
+ }
+
+ ret = chmod (located_filename, mode);
+ g_free (located_filename);
+ }
+
+ return ret;
+}
+
+static gint
+_wapi_utime (const gchar *filename, const struct utimbuf *buf)
+{
+ gint ret;
+
+ ret = utime (filename, buf);
+ if (ret == -1 && errno == ENOENT && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ gchar *located_filename = mono_portability_find_file (filename, TRUE);
+
+ if (located_filename == NULL) {
+ errno = saved_errno;
+ return -1;
+ }
+
+ ret = utime (located_filename, buf);
+ g_free (located_filename);
+ }
+
+ return ret;
+}
+
+static gint
+_wapi_unlink (const gchar *pathname)
+{
+ gint ret;
+
+ ret = unlink (pathname);
+ if (ret == -1 && (errno == ENOENT || errno == ENOTDIR || errno == EISDIR) && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ gchar *located_filename = mono_portability_find_file (pathname, TRUE);
+
+ if (located_filename == NULL) {
+ errno = saved_errno;
+ return -1;
+ }
+
+ ret = unlink (located_filename);
+ g_free (located_filename);
+ }
+
+ return ret;
+}
+
+static gint
+_wapi_rename (const gchar *oldpath, const gchar *newpath)
+{
+ gint ret;
+ gchar *located_newpath = mono_portability_find_file (newpath, FALSE);
+
+ if (located_newpath == NULL) {
+ ret = rename (oldpath, newpath);
+ } else {
+ ret = rename (oldpath, located_newpath);
+
+ if (ret == -1 && (errno == EISDIR || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EXDEV) && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ gchar *located_oldpath = mono_portability_find_file (oldpath, TRUE);
+
+ if (located_oldpath == NULL) {
+ g_free (located_oldpath);
+ g_free (located_newpath);
+
+ errno = saved_errno;
+ return -1;
+ }
+
+ ret = rename (located_oldpath, located_newpath);
+ g_free (located_oldpath);
+ }
+ g_free (located_newpath);
+ }
+
+ return ret;
+}
+
+static gint
+_wapi_stat (const gchar *path, struct stat *buf)
+{
+ gint ret;
+
+ ret = stat (path, buf);
+ if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ gchar *located_filename = mono_portability_find_file (path, TRUE);
+
+ if (located_filename == NULL) {
+ errno = saved_errno;
+ return -1;
+ }
+
+ ret = stat (located_filename, buf);
+ g_free (located_filename);
+ }
+
+ return ret;
+}
+
+static gint
+_wapi_lstat (const gchar *path, struct stat *buf)
+{
+ gint ret;
+
+ ret = lstat (path, buf);
+ if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ gchar *located_filename = mono_portability_find_file (path, TRUE);
+
+ if (located_filename == NULL) {
+ errno = saved_errno;
+ return -1;
+ }
+
+ ret = lstat (located_filename, buf);
+ g_free (located_filename);
+ }
+
+ return ret;
+}
+
+static gint
+_wapi_mkdir (const gchar *pathname, mode_t mode)
+{
+ gint ret;
+ gchar *located_filename = mono_portability_find_file (pathname, FALSE);
+
+ if (located_filename == NULL) {
+ ret = mkdir (pathname, mode);
+ } else {
+ ret = mkdir (located_filename, mode);
+ g_free (located_filename);
+ }
+
+ return ret;
+}
+
+static gint
+_wapi_rmdir (const gchar *pathname)
+{
+ gint ret;
+
+ ret = rmdir (pathname);
+ if (ret == -1 && (errno == ENOENT || errno == ENOTDIR || errno == ENAMETOOLONG) && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ gchar *located_filename = mono_portability_find_file (pathname, TRUE);
+
+ if (located_filename == NULL) {
+ errno = saved_errno;
+ return -1;
+ }
+
+ ret = rmdir (located_filename);
+ g_free (located_filename);
+ }
+
+ return ret;
+}
+
+static gint
+_wapi_chdir (const gchar *path)
+{
+ gint ret;
+
+ ret = chdir (path);
+ if (ret == -1 && (errno == ENOENT || errno == ENOTDIR || errno == ENAMETOOLONG) && IS_PORTABILITY_SET) {
+ gint saved_errno = errno;
+ gchar *located_filename = mono_portability_find_file (path, TRUE);
+
+ if (located_filename == NULL) {
+ errno = saved_errno;
+ return -1;
+ }
+
+ ret = chdir (located_filename);
+ g_free (located_filename);
+ }
+
+ return ret;
+}
+
+static gchar*
+_wapi_basename (const gchar *filename)
+{
+ gchar *new_filename = g_strdup (filename), *ret;
+
+ if (IS_PORTABILITY_SET) {
+ g_strdelimit (new_filename, "\\", '/');
+ }
+
+ if (IS_PORTABILITY_DRIVE && g_ascii_isalpha (new_filename[0]) && (new_filename[1] == ':')) {
+ gint len = strlen (new_filename);
+
+ g_memmove (new_filename, new_filename + 2, len - 2);
+ new_filename[len - 2] = '\0';
+ }
+
+ ret = g_path_get_basename (new_filename);
+ g_free (new_filename);
+
+ return ret;
+}
+
+static gchar*
+_wapi_dirname (const gchar *filename)
+{
+ gchar *new_filename = g_strdup (filename), *ret;
+
+ if (IS_PORTABILITY_SET) {
+ g_strdelimit (new_filename, "\\", '/');
+ }
+
+ if (IS_PORTABILITY_DRIVE && g_ascii_isalpha (new_filename[0]) && (new_filename[1] == ':')) {
+ gint len = strlen (new_filename);
+
+ g_memmove (new_filename, new_filename + 2, len - 2);
+ new_filename[len - 2] = '\0';
+ }
+
+ ret = g_path_get_dirname (new_filename);
+ g_free (new_filename);
+
+ return ret;
+}
+
+static GDir*
+_wapi_g_dir_open (const gchar *path, guint flags, GError **error)
+{
+ GDir *ret;
+
+ ret = g_dir_open (path, flags, error);
+ if (ret == NULL && ((*error)->code == G_FILE_ERROR_NOENT || (*error)->code == G_FILE_ERROR_NOTDIR || (*error)->code == G_FILE_ERROR_NAMETOOLONG) && IS_PORTABILITY_SET) {
+ gchar *located_filename = mono_portability_find_file (path, TRUE);
+ GError *tmp_error = NULL;
+
+ if (located_filename == NULL) {
+ return(NULL);
+ }
+
+ ret = g_dir_open (located_filename, flags, &tmp_error);
+ g_free (located_filename);
+ if (tmp_error == NULL) {
+ g_clear_error (error);
+ }
+ }
+
+ return ret;
+}
+
+static gint
+get_errno_from_g_file_error (gint error)
+{
+ switch (error) {
+#ifdef EACCESS
+ case G_FILE_ERROR_ACCES: return EACCES;
+#endif
+#ifdef ENAMETOOLONG
+ case G_FILE_ERROR_NAMETOOLONG: return ENAMETOOLONG;
+#endif
+#ifdef ENOENT
+ case G_FILE_ERROR_NOENT: return ENOENT;
+#endif
+#ifdef ENOTDIR
+ case G_FILE_ERROR_NOTDIR: return ENOTDIR;
+#endif
+#ifdef ENXIO
+ case G_FILE_ERROR_NXIO: return ENXIO;
+#endif
+#ifdef ENODEV
+ case G_FILE_ERROR_NODEV: return ENODEV;
+#endif
+#ifdef EROFS
+ case G_FILE_ERROR_ROFS: return EROFS;
+#endif
+#ifdef ETXTBSY
+ case G_FILE_ERROR_TXTBSY: return ETXTBSY;
+#endif
+#ifdef EFAULT
+ case G_FILE_ERROR_FAULT: return EFAULT;
+#endif
+#ifdef ELOOP
+ case G_FILE_ERROR_LOOP: return ELOOP;
+#endif
+#ifdef ENOSPC
+ case G_FILE_ERROR_NOSPC: return ENOSPC;
+#endif
+#ifdef ENOMEM
+ case G_FILE_ERROR_NOMEM: return ENOMEM;
+#endif
+#ifdef EMFILE
+ case G_FILE_ERROR_MFILE: return EMFILE;
+#endif
+#ifdef ENFILE
+ case G_FILE_ERROR_NFILE: return ENFILE;
+#endif
+#ifdef EBADF
+ case G_FILE_ERROR_BADF: return EBADF;
+#endif
+#ifdef EINVAL
+ case G_FILE_ERROR_INVAL: return EINVAL;
+#endif
+#ifdef EPIPE
+ case G_FILE_ERROR_PIPE: return EPIPE;
+#endif
+#ifdef EAGAIN
+ case G_FILE_ERROR_AGAIN: return EAGAIN;
+#endif
+#ifdef EINTR
+ case G_FILE_ERROR_INTR: return EINTR;
+#endif
+#ifdef EWIO
+ case G_FILE_ERROR_IO: return EIO;
+#endif
+#ifdef EPERM
+ case G_FILE_ERROR_PERM: return EPERM;
+#endif
+ case G_FILE_ERROR_FAILED: return ERROR_INVALID_PARAMETER;
+ default:
+ g_assert_not_reached ();
+ }
+}
+
+static gint
+file_compare (gconstpointer a, gconstpointer b)
+{
+ gchar *astr = *(gchar **) a;
+ gchar *bstr = *(gchar **) b;
+
+ return strcmp (astr, bstr);
+}
+
+/* scandir using glib */
+static gint
+_wapi_io_scandir (const gchar *dirname, const gchar *pattern, gchar ***namelist)
+{
+ GError *error = NULL;
+ GDir *dir;
+ GPtrArray *names;
+ gint result;
+ mono_w32file_unix_glob_t glob_buf;
+ gint flags = 0, i;
+
+ dir = _wapi_g_dir_open (dirname, 0, &error);
+ if (dir == NULL) {
+ /* g_dir_open returns ENOENT on directories on which we don't
+ * have read/x permission */
+ gint errnum = get_errno_from_g_file_error (error->code);
+ g_error_free (error);
+ if (errnum == ENOENT &&
+ !_wapi_access (dirname, F_OK) &&
+ _wapi_access (dirname, R_OK|X_OK)) {
+ errnum = EACCES;
+ }
+
+ errno = errnum;
+ return -1;
+ }
+
+ if (IS_PORTABILITY_CASE) {
+ flags = W32FILE_UNIX_GLOB_IGNORECASE;
+ }
+
+ result = mono_w32file_unix_glob (dir, pattern, flags, &glob_buf);
+ if (g_str_has_suffix (pattern, ".*")) {
+ /* Special-case the patterns ending in '.*', as
+ * windows also matches entries with no extension with
+ * this pattern.
+ *
+ * TODO: should this be a MONO_IOMAP option?
+ */
+ gchar *pattern2 = g_strndup (pattern, strlen (pattern) - 2);
+ gint result2;
+
+ g_dir_rewind (dir);
+ result2 = mono_w32file_unix_glob (dir, pattern2, flags | W32FILE_UNIX_GLOB_APPEND | W32FILE_UNIX_GLOB_UNIQUE, &glob_buf);
+
+ g_free (pattern2);
+
+ if (result != 0) {
+ result = result2;
+ }
+ }
+
+ g_dir_close (dir);
+ if (glob_buf.gl_pathc == 0) {
+ return(0);
+ } else if (result != 0) {
+ return -1;
+ }
+
+ names = g_ptr_array_new ();
+ for (i = 0; i < glob_buf.gl_pathc; i++) {
+ g_ptr_array_add (names, g_strdup (glob_buf.gl_pathv[i]));
+ }
+
+ mono_w32file_unix_globfree (&glob_buf);
+
+ result = names->len;
+ if (result > 0) {
+ g_ptr_array_sort (names, file_compare);
+ g_ptr_array_set_size (names, result + 1);
+
+ *namelist = (gchar **) g_ptr_array_free (names, FALSE);
+ } else {
+ g_ptr_array_free (names, TRUE);
+ }
+
+ return result;
+}
+
+static gboolean
+_wapi_lock_file_region (gint fd, off_t offset, off_t length)
+{
+#if defined(__native_client__)
+ printf("WARNING: %s: fcntl() not available on Native Client!\n", __func__);
+ // behave as below -- locks are not available
+ return TRUE;
+#else
+ struct flock lock_data;
+ gint ret;
+
+ if (offset < 0 || length < 0) {
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return FALSE;
+ }
+
+ lock_data.l_type = F_WRLCK;
+ lock_data.l_whence = SEEK_SET;
+ lock_data.l_start = offset;
+ lock_data.l_len = length;
+
+ do {
+ ret = fcntl (fd, F_SETLK, &lock_data);
+ } while(ret == -1 && errno == EINTR);
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fcntl returns %d", __func__, ret);
+
+ if (ret == -1) {
+ /*
+ * if locks are not available (NFS for example),
+ * ignore the error
+ */
+ if (errno == ENOLCK
+#ifdef EOPNOTSUPP
+ || errno == EOPNOTSUPP
+#endif
+#ifdef ENOTSUP
+ || errno == ENOTSUP
+#endif
+ ) {
+ return TRUE;
+ }
+
+ SetLastError (ERROR_LOCK_VIOLATION);
+ return FALSE;
+ }
+
+ return TRUE;
+#endif /* __native_client__ */
+}
+
+static gboolean
+_wapi_unlock_file_region (gint fd, off_t offset, off_t length)
+{
+#if defined(__native_client__)
+ printf("WARNING: %s: fcntl() not available on Native Client!\n", __func__);
+ return TRUE;
+#else
+ struct flock lock_data;
+ gint ret;
+
+ lock_data.l_type = F_UNLCK;
+ lock_data.l_whence = SEEK_SET;
+ lock_data.l_start = offset;
+ lock_data.l_len = length;
+
+ do {
+ ret = fcntl (fd, F_SETLK, &lock_data);
+ } while(ret == -1 && errno == EINTR);
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fcntl returns %d", __func__, ret);
+
+ if (ret == -1) {
+ /*
+ * if locks are not available (NFS for example),
+ * ignore the error
+ */
+ if (errno == ENOLCK
+#ifdef EOPNOTSUPP
+ || errno == EOPNOTSUPP
+#endif
+#ifdef ENOTSUP
+ || errno == ENOTSUP
+#endif
+ ) {
+ return TRUE;
+ }
+
+ SetLastError (ERROR_LOCK_VIOLATION);
+ return FALSE;
+ }
+
+ return TRUE;
+#endif /* __native_client__ */
+}
+
+static void file_close (gpointer handle, gpointer data);
+static void file_details (gpointer data);
+static const gchar* file_typename (void);
+static gsize file_typesize (void);
+static gint file_getfiletype(void);
+static gboolean file_read(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread);
+static gboolean file_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten);
+static gboolean file_flush(gpointer handle);
+static guint32 file_seek(gpointer handle, gint32 movedistance,
+ gint32 *highmovedistance, gint method);
+static gboolean file_setendoffile(gpointer handle);
+static guint32 file_getfilesize(gpointer handle, guint32 *highsize);
+static gboolean file_getfiletime(gpointer handle, FILETIME *create_time,
+ FILETIME *access_time,
+ FILETIME *write_time);
+static gboolean file_setfiletime(gpointer handle,
+ const FILETIME *create_time,
+ const FILETIME *access_time,
+ const FILETIME *write_time);
+static guint32 GetDriveTypeFromPath (const gchar *utf8_root_path_name);
+
+/* File handle is only signalled for overlapped IO */
+static MonoW32HandleOps _wapi_file_ops = {
+ file_close, /* close */
+ NULL, /* signal */
+ NULL, /* own */
+ NULL, /* is_owned */
+ NULL, /* special_wait */
+ NULL, /* prewait */
+ file_details, /* details */
+ file_typename, /* typename */
+ file_typesize, /* typesize */
+};
+
+static void console_close (gpointer handle, gpointer data);
+static void console_details (gpointer data);
+static const gchar* console_typename (void);
+static gsize console_typesize (void);
+static gint console_getfiletype(void);
+static gboolean console_read(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread);
+static gboolean console_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten);
+
+/* Console is mostly the same as file, except it can block waiting for
+ * input or output
+ */
+static MonoW32HandleOps _wapi_console_ops = {
+ console_close, /* close */
+ NULL, /* signal */
+ NULL, /* own */
+ NULL, /* is_owned */
+ NULL, /* special_wait */
+ NULL, /* prewait */
+ console_details, /* details */
+ console_typename, /* typename */
+ console_typesize, /* typesize */
+};
+
+static const gchar* find_typename (void);
+static gsize find_typesize (void);
+
+static MonoW32HandleOps _wapi_find_ops = {
+ NULL, /* close */
+ NULL, /* signal */
+ NULL, /* own */
+ NULL, /* is_owned */
+ NULL, /* special_wait */
+ NULL, /* prewait */
+ NULL, /* details */
+ find_typename, /* typename */
+ find_typesize, /* typesize */
+};
+
+static void pipe_close (gpointer handle, gpointer data);
+static void pipe_details (gpointer data);
+static const gchar* pipe_typename (void);
+static gsize pipe_typesize (void);
+static gint pipe_getfiletype (void);
+static gboolean pipe_read (gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread);
+static gboolean pipe_write (gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten);
+
+/* Pipe handles
+ */
+static MonoW32HandleOps _wapi_pipe_ops = {
+ pipe_close, /* close */
+ NULL, /* signal */
+ NULL, /* own */
+ NULL, /* is_owned */
+ NULL, /* special_wait */
+ NULL, /* prewait */
+ pipe_details, /* details */
+ pipe_typename, /* typename */
+ pipe_typesize, /* typesize */
+};
+
+static const struct {
+ /* File, console and pipe handles */
+ gint (*getfiletype)(void);
+
+ /* File, console and pipe handles */
+ gboolean (*readfile)(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread);
+ gboolean (*writefile)(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten);
+ gboolean (*flushfile)(gpointer handle);
+
+ /* File handles */
+ guint32 (*seek)(gpointer handle, gint32 movedistance,
+ gint32 *highmovedistance, gint method);
+ gboolean (*setendoffile)(gpointer handle);
+ guint32 (*getfilesize)(gpointer handle, guint32 *highsize);
+ gboolean (*getfiletime)(gpointer handle, FILETIME *create_time,
+ FILETIME *access_time,
+ FILETIME *write_time);
+ gboolean (*setfiletime)(gpointer handle,
+ const FILETIME *create_time,
+ const FILETIME *access_time,
+ const FILETIME *write_time);
+} io_ops[MONO_W32HANDLE_COUNT]={
+ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
+ /* file */
+ {file_getfiletype,
+ file_read, file_write,
+ file_flush, file_seek,
+ file_setendoffile,
+ file_getfilesize,
+ file_getfiletime,
+ file_setfiletime},
+ /* console */
+ {console_getfiletype,
+ console_read,
+ console_write,
+ NULL, NULL, NULL, NULL, NULL, NULL},
+ /* thread */
+ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
+ /* sem */
+ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
+ /* mutex */
+ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
+ /* event */
+ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
+ /* socket (will need at least read and write) */
+ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
+ /* find */
+ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
+ /* process */
+ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
+ /* pipe */
+ {pipe_getfiletype,
+ pipe_read,
+ pipe_write,
+ NULL, NULL, NULL, NULL, NULL, NULL},
+};
+
+static gboolean lock_while_writing = FALSE;
+
+/* Some utility functions.
+ */
+
+/*
+ * Check if a file is writable by the current user.
+ *
+ * This is is a best effort kind of thing. It assumes a reasonable sane set
+ * of permissions by the underlying OS.
+ *
+ * We generally assume that basic unix permission bits are authoritative. Which might not
+ * be the case under systems with extended permissions systems (posix ACLs, SELinux, OSX/iOS sandboxing, etc)
+ *
+ * The choice of access as the fallback is due to the expected lower overhead compared to trying to open the file.
+ *
+ * The only expected problem with using access are for root, setuid or setgid programs as access is not consistent
+ * under those situations. It's to be expected that this should not happen in practice as those bits are very dangerous
+ * and should not be used with a dynamic runtime.
+ */
+static gboolean
+is_file_writable (struct stat *st, const gchar *path)
+{
+#if __APPLE__
+ // OS X Finder "locked" or `ls -lO` "uchg".
+ // This only covers one of several cases where an OS X file could be unwritable through special flags.
+ if (st->st_flags & (UF_IMMUTABLE|SF_IMMUTABLE))
+ return 0;
+#endif
+
+ /* Is it globally writable? */
+ if (st->st_mode & S_IWOTH)
+ return 1;
+
+ /* Am I the owner? */
+ if ((st->st_uid == geteuid ()) && (st->st_mode & S_IWUSR))
+ return 1;
+
+ /* Am I in the same group? */
+ if ((st->st_gid == getegid ()) && (st->st_mode & S_IWGRP))
+ return 1;
+
+ /* Fallback to using access(2). It's not ideal as it might not take into consideration euid/egid
+ * but it's the only sane option we have on unix.
+ */
+ return access (path, W_OK) == 0;
+}
+
+
+static guint32 _wapi_stat_to_file_attributes (const gchar *pathname,
+ struct stat *buf,
+ struct stat *lbuf)
+{
+ guint32 attrs = 0;
+ gchar *filename;
+
+ /* FIXME: this could definitely be better, but there seems to
+ * be no pattern to the attributes that are set
+ */
+
+ /* Sockets (0140000) != Directory (040000) + Regular file (0100000) */
+ if (S_ISSOCK (buf->st_mode))
+ buf->st_mode &= ~S_IFSOCK; /* don't consider socket protection */
+
+ filename = _wapi_basename (pathname);
+
+ if (S_ISDIR (buf->st_mode)) {
+ attrs = FILE_ATTRIBUTE_DIRECTORY;
+ if (!is_file_writable (buf, pathname)) {
+ attrs |= FILE_ATTRIBUTE_READONLY;
+ }
+ if (filename[0] == '.') {
+ attrs |= FILE_ATTRIBUTE_HIDDEN;
+ }
+ } else {
+ if (!is_file_writable (buf, pathname)) {
+ attrs = FILE_ATTRIBUTE_READONLY;
+
+ if (filename[0] == '.') {
+ attrs |= FILE_ATTRIBUTE_HIDDEN;
+ }
+ } else if (filename[0] == '.') {
+ attrs = FILE_ATTRIBUTE_HIDDEN;
+ } else {
+ attrs = FILE_ATTRIBUTE_NORMAL;
+ }
+ }
+
+ if (lbuf != NULL) {
+ if (S_ISLNK (lbuf->st_mode)) {
+ attrs |= FILE_ATTRIBUTE_REPARSE_POINT;
+ }
+ }
+
+ g_free (filename);
+
+ return attrs;
+}
+
+static void
+_wapi_set_last_error_from_errno (void)
+{
+ SetLastError (_wapi_get_win32_file_error (errno));
+}
+
+static void _wapi_set_last_path_error_from_errno (const gchar *dir,
+ const gchar *path)
+{
+ if (errno == ENOENT) {
+ /* Check the path - if it's a missing directory then
+ * we need to set PATH_NOT_FOUND not FILE_NOT_FOUND
+ */
+ gchar *dirname;
+
+
+ if (dir == NULL) {
+ dirname = _wapi_dirname (path);
+ } else {
+ dirname = g_strdup (dir);
+ }
+
+ if (_wapi_access (dirname, F_OK) == 0) {
+ SetLastError (ERROR_FILE_NOT_FOUND);
+ } else {
+ SetLastError (ERROR_PATH_NOT_FOUND);
+ }
+
+ g_free (dirname);
+ } else {
+ _wapi_set_last_error_from_errno ();
+ }
+}
+
+/* Handle ops.
+ */
+static void file_close (gpointer handle, gpointer data)
+{
+ MonoW32HandleFile *file_handle = (MonoW32HandleFile *)data;
+ gint fd = file_handle->fd;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing file handle %p [%s]", __func__, handle,
+ file_handle->filename);
+
+ if (file_handle->attrs & FILE_FLAG_DELETE_ON_CLOSE)
+ _wapi_unlink (file_handle->filename);
+
+ g_free (file_handle->filename);
+
+ if (file_handle->share_info)
+ file_share_release (file_handle->share_info);
+
+ close (fd);
+}
+
+static void file_details (gpointer data)
+{
+ MonoW32HandleFile *file = (MonoW32HandleFile *)data;
+
+ g_print ("[%20s] acc: %c%c%c, shr: %c%c%c, attrs: %5u",
+ file->filename,
+ file->fileaccess&GENERIC_READ?'R':'.',
+ file->fileaccess&GENERIC_WRITE?'W':'.',
+ file->fileaccess&GENERIC_EXECUTE?'X':'.',
+ file->sharemode&FILE_SHARE_READ?'R':'.',
+ file->sharemode&FILE_SHARE_WRITE?'W':'.',
+ file->sharemode&FILE_SHARE_DELETE?'D':'.',
+ file->attrs);
+}
+
+static const gchar* file_typename (void)
+{
+ return "File";
+}
+
+static gsize file_typesize (void)
+{
+ return sizeof (MonoW32HandleFile);
+}
+
+static gint file_getfiletype(void)
+{
+ return(FILE_TYPE_DISK);
+}
+
+static gboolean
+file_read(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
+{
+ MonoW32HandleFile *file_handle;
+ gboolean ok;
+ gint fd, ret;
+ MonoThreadInfo *info = mono_thread_info_current ();
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
+ (gpointer *)&file_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up file handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ fd = file_handle->fd;
+ if(bytesread!=NULL) {
+ *bytesread=0;
+ }
+
+ if(!(file_handle->fileaccess & GENERIC_READ) &&
+ !(file_handle->fileaccess & GENERIC_ALL)) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
+ __func__, handle, file_handle->fileaccess);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ do {
+ ret = read (fd, buffer, numbytes);
+ } while (ret == -1 && errno == EINTR &&
+ !mono_thread_info_is_interrupt_state (info));
+
+ if(ret==-1) {
+ gint err = errno;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__,
+ handle, strerror(err));
+ SetLastError (_wapi_get_win32_file_error (err));
+ return(FALSE);
+ }
+
+ if (bytesread != NULL) {
+ *bytesread = ret;
+ }
+
+ return(TRUE);
+}
+
+static gboolean
+file_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
+{
+ MonoW32HandleFile *file_handle;
+ gboolean ok;
+ gint ret, fd;
+ off_t current_pos = 0;
+ MonoThreadInfo *info = mono_thread_info_current ();
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
+ (gpointer *)&file_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up file handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ fd = file_handle->fd;
+
+ if(byteswritten!=NULL) {
+ *byteswritten=0;
+ }
+
+ if(!(file_handle->fileaccess & GENERIC_WRITE) &&
+ !(file_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ if (lock_while_writing) {
+ /* Need to lock the region we're about to write to,
+ * because we only do advisory locking on POSIX
+ * systems
+ */
+ current_pos = lseek (fd, (off_t)0, SEEK_CUR);
+ if (current_pos == -1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p lseek failed: %s", __func__,
+ handle, strerror (errno));
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+
+ if (_wapi_lock_file_region (fd, current_pos,
+ numbytes) == FALSE) {
+ /* The error has already been set */
+ return(FALSE);
+ }
+ }
+
+ do {
+ ret = write (fd, buffer, numbytes);
+ } while (ret == -1 && errno == EINTR &&
+ !mono_thread_info_is_interrupt_state (info));
+
+ if (lock_while_writing) {
+ _wapi_unlock_file_region (fd, current_pos, numbytes);
+ }
+
+ if (ret == -1) {
+ if (errno == EINTR) {
+ ret = 0;
+ } else {
+ _wapi_set_last_error_from_errno ();
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s",
+ __func__, handle, strerror(errno));
+
+ return(FALSE);
+ }
+ }
+ if (byteswritten != NULL) {
+ *byteswritten = ret;
+ }
+ return(TRUE);
+}
+
+static gboolean file_flush(gpointer handle)
+{
+ MonoW32HandleFile *file_handle;
+ gboolean ok;
+ gint ret, fd;
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
+ (gpointer *)&file_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up file handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ fd = file_handle->fd;
+
+ if(!(file_handle->fileaccess & GENERIC_WRITE) &&
+ !(file_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ ret=fsync(fd);
+ if (ret==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fsync of handle %p error: %s", __func__, handle,
+ strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+
+ return(TRUE);
+}
+
+static guint32 file_seek(gpointer handle, gint32 movedistance,
+ gint32 *highmovedistance, gint method)
+{
+ MonoW32HandleFile *file_handle;
+ gboolean ok;
+ gint64 offset, newpos;
+ gint whence, fd;
+ guint32 ret;
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
+ (gpointer *)&file_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up file handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(INVALID_SET_FILE_POINTER);
+ }
+
+ fd = file_handle->fd;
+
+ if(!(file_handle->fileaccess & GENERIC_READ) &&
+ !(file_handle->fileaccess & GENERIC_WRITE) &&
+ !(file_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(INVALID_SET_FILE_POINTER);
+ }
+
+ switch(method) {
+ case FILE_BEGIN:
+ whence=SEEK_SET;
+ break;
+ case FILE_CURRENT:
+ whence=SEEK_CUR;
+ break;
+ case FILE_END:
+ whence=SEEK_END;
+ break;
+ default:
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: invalid seek type %d", __func__, method);
+
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(INVALID_SET_FILE_POINTER);
+ }
+
+#ifdef HAVE_LARGE_FILE_SUPPORT
+ if(highmovedistance==NULL) {
+ offset=movedistance;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: setting offset to %lld (low %d)", __func__,
+ offset, movedistance);
+ } else {
+ offset=((gint64) *highmovedistance << 32) | (guint32)movedistance;
+
+ 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);
+ }
+#else
+ offset=movedistance;
+#endif
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: moving handle %p by %lld bytes from %d", __func__,
+ handle, (long long)offset, whence);
+
+#ifdef PLATFORM_ANDROID
+ /* bionic doesn't support -D_FILE_OFFSET_BITS=64 */
+ newpos=lseek64(fd, offset, whence);
+#else
+ newpos=lseek(fd, offset, whence);
+#endif
+ if(newpos==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lseek on handle %p returned error %s",
+ __func__, handle, strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(INVALID_SET_FILE_POINTER);
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lseek returns %lld", __func__, newpos);
+
+#ifdef HAVE_LARGE_FILE_SUPPORT
+ ret=newpos & 0xFFFFFFFF;
+ if(highmovedistance!=NULL) {
+ *highmovedistance=newpos>>32;
+ }
+#else
+ ret=newpos;
+ if(highmovedistance!=NULL) {
+ /* Accurate, but potentially dodgy :-) */
+ *highmovedistance=0;
+ }
+#endif
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: move of handle %p returning %d/%d", __func__,
+ handle, ret, highmovedistance==NULL?0:*highmovedistance);
+
+ return(ret);
+}
+
+static gboolean file_setendoffile(gpointer handle)
+{
+ MonoW32HandleFile *file_handle;
+ gboolean ok;
+ struct stat statbuf;
+ off_t pos;
+ gint ret, fd;
+ MonoThreadInfo *info = mono_thread_info_current ();
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
+ (gpointer *)&file_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up file handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+ fd = file_handle->fd;
+
+ if(!(file_handle->fileaccess & GENERIC_WRITE) &&
+ !(file_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ /* Find the current file position, and the file length. If
+ * the file position is greater than the length, write to
+ * extend the file with a hole. If the file position is less
+ * than the length, truncate the file.
+ */
+
+ ret=fstat(fd, &statbuf);
+ if(ret==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__,
+ handle, strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+
+ pos=lseek(fd, (off_t)0, SEEK_CUR);
+ if(pos==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p lseek failed: %s", __func__,
+ handle, strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+
+#ifdef FTRUNCATE_DOESNT_EXTEND
+ off_t size = statbuf.st_size;
+ /* I haven't bothered to write the configure.ac stuff for this
+ * because I don't know if any platform needs it. I'm leaving
+ * this code just in case though
+ */
+ if(pos>size) {
+ /* Extend the file. Use write() here, because some
+ * manuals say that ftruncate() behaviour is undefined
+ * when the file needs extending. The POSIX spec says
+ * that on XSI-conformant systems it extends, so if
+ * every system we care about conforms, then we can
+ * drop this write.
+ */
+ do {
+ ret = write (fd, "", 1);
+ } while (ret == -1 && errno == EINTR &&
+ !mono_thread_info_is_interrupt_state (info));
+
+ if(ret==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p extend write failed: %s", __func__, handle, strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+
+ /* And put the file position back after the write */
+ ret = lseek (fd, pos, SEEK_SET);
+ if (ret == -1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p second lseek failed: %s",
+ __func__, handle, strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+ }
+#endif
+
+/* Native Client has no ftruncate function, even in standalone sel_ldr. */
+#ifndef __native_client__
+ /* always truncate, because the extend write() adds an extra
+ * byte to the end of the file
+ */
+ do {
+ ret=ftruncate(fd, pos);
+ }
+ while (ret==-1 && errno==EINTR && !mono_thread_info_is_interrupt_state (info));
+ if(ret==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p ftruncate failed: %s", __func__,
+ handle, strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+#endif
+
+ return(TRUE);
+}
+
+static guint32 file_getfilesize(gpointer handle, guint32 *highsize)
+{
+ MonoW32HandleFile *file_handle;
+ gboolean ok;
+ struct stat statbuf;
+ guint32 size;
+ gint ret;
+ gint fd;
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
+ (gpointer *)&file_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up file handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(INVALID_FILE_SIZE);
+ }
+ fd = file_handle->fd;
+
+ if(!(file_handle->fileaccess & GENERIC_READ) &&
+ !(file_handle->fileaccess & GENERIC_WRITE) &&
+ !(file_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(INVALID_FILE_SIZE);
+ }
+
+ /* If the file has a size with the low bits 0xFFFFFFFF the
+ * caller can't tell if this is an error, so clear the error
+ * value
+ */
+ SetLastError (ERROR_SUCCESS);
+
+ ret = fstat(fd, &statbuf);
+ if (ret == -1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__,
+ handle, strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(INVALID_FILE_SIZE);
+ }
+
+ /* fstat indicates block devices as zero-length, so go a different path */
+#ifdef BLKGETSIZE64
+ if (S_ISBLK(statbuf.st_mode)) {
+ guint64 bigsize;
+ if (ioctl(fd, BLKGETSIZE64, &bigsize) < 0) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p ioctl BLKGETSIZE64 failed: %s",
+ __func__, handle, strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(INVALID_FILE_SIZE);
+ }
+
+ size = bigsize & 0xFFFFFFFF;
+ if (highsize != NULL) {
+ *highsize = bigsize>>32;
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning block device size %d/%d",
+ __func__, size, *highsize);
+
+ return(size);
+ }
+#endif
+
+#ifdef HAVE_LARGE_FILE_SUPPORT
+ size = statbuf.st_size & 0xFFFFFFFF;
+ if (highsize != NULL) {
+ *highsize = statbuf.st_size>>32;
+ }
+#else
+ if (highsize != NULL) {
+ /* Accurate, but potentially dodgy :-) */
+ *highsize = 0;
+ }
+ size = statbuf.st_size;
+#endif
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning size %d/%d", __func__, size, *highsize);
+
+ return(size);
+}
+
+static gboolean file_getfiletime(gpointer handle, FILETIME *create_time,
+ FILETIME *access_time,
+ FILETIME *write_time)
+{
+ MonoW32HandleFile *file_handle;
+ gboolean ok;
+ struct stat statbuf;
+ guint64 create_ticks, access_ticks, write_ticks;
+ gint ret, fd;
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
+ (gpointer *)&file_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up file handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+ fd = file_handle->fd;
+
+ if(!(file_handle->fileaccess & GENERIC_READ) &&
+ !(file_handle->fileaccess & GENERIC_ALL)) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
+ __func__, handle, file_handle->fileaccess);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ ret=fstat(fd, &statbuf);
+ if(ret==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__, handle,
+ strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: atime: %ld ctime: %ld mtime: %ld", __func__,
+ statbuf.st_atime, statbuf.st_ctime,
+ statbuf.st_mtime);
+
+ /* Try and guess a meaningful create time by using the older
+ * of atime or ctime
+ */
+ /* The magic constant comes from msdn documentation
+ * "Converting a time_t Value to a File Time"
+ */
+ if(statbuf.st_atime < statbuf.st_ctime) {
+ create_ticks=((guint64)statbuf.st_atime*10000000)
+ + 116444736000000000ULL;
+ } else {
+ create_ticks=((guint64)statbuf.st_ctime*10000000)
+ + 116444736000000000ULL;
+ }
+
+ access_ticks=((guint64)statbuf.st_atime*10000000)+116444736000000000ULL;
+ write_ticks=((guint64)statbuf.st_mtime*10000000)+116444736000000000ULL;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: aticks: %llu cticks: %llu wticks: %llu", __func__,
+ access_ticks, create_ticks, write_ticks);
+
+ if(create_time!=NULL) {
+ create_time->dwLowDateTime = create_ticks & 0xFFFFFFFF;
+ create_time->dwHighDateTime = create_ticks >> 32;
+ }
+
+ if(access_time!=NULL) {
+ access_time->dwLowDateTime = access_ticks & 0xFFFFFFFF;
+ access_time->dwHighDateTime = access_ticks >> 32;
+ }
+
+ if(write_time!=NULL) {
+ write_time->dwLowDateTime = write_ticks & 0xFFFFFFFF;
+ write_time->dwHighDateTime = write_ticks >> 32;
+ }
+
+ return(TRUE);
+}
+
+static gboolean file_setfiletime(gpointer handle,
+ const FILETIME *create_time G_GNUC_UNUSED,
+ const FILETIME *access_time,
+ const FILETIME *write_time)
+{
+ MonoW32HandleFile *file_handle;
+ gboolean ok;
+ struct utimbuf utbuf;
+ struct stat statbuf;
+ guint64 access_ticks, write_ticks;
+ gint ret, fd;
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE,
+ (gpointer *)&file_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up file handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+ fd = file_handle->fd;
+
+ if(!(file_handle->fileaccess & GENERIC_WRITE) &&
+ !(file_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ if(file_handle->filename == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p unknown filename", __func__, handle);
+
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ /* Get the current times, so we can put the same times back in
+ * the event that one of the FileTime structs is NULL
+ */
+ ret=fstat (fd, &statbuf);
+ if(ret==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p fstat failed: %s", __func__, handle,
+ strerror(errno));
+
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+
+ if(access_time!=NULL) {
+ access_ticks=((guint64)access_time->dwHighDateTime << 32) +
+ access_time->dwLowDateTime;
+ /* This is (time_t)0. We can actually go to INT_MIN,
+ * but this will do for now.
+ */
+ if (access_ticks < 116444736000000000ULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set access time too early",
+ __func__);
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+
+ if (sizeof (utbuf.actime) == 4 && ((access_ticks - 116444736000000000ULL) / 10000000) > INT_MAX) {
+ 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",
+ __func__);
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+
+ utbuf.actime=(access_ticks - 116444736000000000ULL) / 10000000;
+ } else {
+ utbuf.actime=statbuf.st_atime;
+ }
+
+ if(write_time!=NULL) {
+ write_ticks=((guint64)write_time->dwHighDateTime << 32) +
+ write_time->dwLowDateTime;
+ /* This is (time_t)0. We can actually go to INT_MIN,
+ * but this will do for now.
+ */
+ if (write_ticks < 116444736000000000ULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: attempt to set write time too early",
+ __func__);
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+ if (sizeof (utbuf.modtime) == 4 && ((write_ticks - 116444736000000000ULL) / 10000000) > INT_MAX) {
+ 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",
+ __func__);
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+
+ utbuf.modtime=(write_ticks - 116444736000000000ULL) / 10000000;
+ } else {
+ utbuf.modtime=statbuf.st_mtime;
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: setting handle %p access %ld write %ld", __func__,
+ handle, utbuf.actime, utbuf.modtime);
+
+ ret = _wapi_utime (file_handle->filename, &utbuf);
+ if (ret == -1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p [%s] utime failed: %s", __func__,
+ handle, file_handle->filename, strerror(errno));
+
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+
+ return(TRUE);
+}
+
+static void console_close (gpointer handle, gpointer data)
+{
+ MonoW32HandleFile *console_handle = (MonoW32HandleFile *)data;
+ gint fd = console_handle->fd;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing console handle %p", __func__, handle);
+
+ g_free (console_handle->filename);
+
+ if (fd > 2) {
+ if (console_handle->share_info)
+ file_share_release (console_handle->share_info);
+ close (fd);
+ }
+}
+
+static void console_details (gpointer data)
+{
+ file_details (data);
+}
+
+static const gchar* console_typename (void)
+{
+ return "Console";
+}
+
+static gsize console_typesize (void)
+{
+ return sizeof (MonoW32HandleFile);
+}
+
+static gint console_getfiletype(void)
+{
+ return(FILE_TYPE_CHAR);
+}
+
+static gboolean
+console_read(gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
+{
+ MonoW32HandleFile *console_handle;
+ gboolean ok;
+ gint ret, fd;
+ MonoThreadInfo *info = mono_thread_info_current ();
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_CONSOLE,
+ (gpointer *)&console_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up console handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+ fd = console_handle->fd;
+
+ if(bytesread!=NULL) {
+ *bytesread=0;
+ }
+
+ if(!(console_handle->fileaccess & GENERIC_READ) &&
+ !(console_handle->fileaccess & GENERIC_ALL)) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
+ __func__, handle, console_handle->fileaccess);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ do {
+ ret=read(fd, buffer, numbytes);
+ } while (ret==-1 && errno==EINTR && !mono_thread_info_is_interrupt_state (info));
+
+ if(ret==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__, handle,
+ strerror(errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+
+ if(bytesread!=NULL) {
+ *bytesread=ret;
+ }
+
+ return(TRUE);
+}
+
+static gboolean
+console_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
+{
+ MonoW32HandleFile *console_handle;
+ gboolean ok;
+ gint ret, fd;
+ MonoThreadInfo *info = mono_thread_info_current ();
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_CONSOLE,
+ (gpointer *)&console_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up console handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+ fd = console_handle->fd;
+
+ if(byteswritten!=NULL) {
+ *byteswritten=0;
+ }
+
+ if(!(console_handle->fileaccess & GENERIC_WRITE) &&
+ !(console_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ do {
+ ret = write(fd, buffer, numbytes);
+ } while (ret == -1 && errno == EINTR &&
+ !mono_thread_info_is_interrupt_state (info));
+
+ if (ret == -1) {
+ if (errno == EINTR) {
+ ret = 0;
+ } else {
+ _wapi_set_last_error_from_errno ();
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s",
+ __func__, handle, strerror(errno));
+
+ return(FALSE);
+ }
+ }
+ if(byteswritten!=NULL) {
+ *byteswritten=ret;
+ }
+
+ return(TRUE);
+}
+
+static const gchar* find_typename (void)
+{
+ return "Find";
+}
+
+static gsize find_typesize (void)
+{
+ return sizeof (MonoW32HandleFind);
+}
+
+static void pipe_close (gpointer handle, gpointer data)
+{
+ MonoW32HandleFile *pipe_handle = (MonoW32HandleFile*)data;
+ gint fd = pipe_handle->fd;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: closing pipe handle %p fd %d", __func__, handle, fd);
+
+ /* No filename with pipe handles */
+
+ if (pipe_handle->share_info)
+ file_share_release (pipe_handle->share_info);
+
+ close (fd);
+}
+
+static void pipe_details (gpointer data)
+{
+ file_details (data);
+}
+
+static const gchar* pipe_typename (void)
+{
+ return "Pipe";
+}
+
+static gsize pipe_typesize (void)
+{
+ return sizeof (MonoW32HandleFile);
+}
+
+static gint pipe_getfiletype(void)
+{
+ return(FILE_TYPE_PIPE);
+}
+
+static gboolean
+pipe_read (gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
+{
+ MonoW32HandleFile *pipe_handle;
+ gboolean ok;
+ gint ret, fd;
+ MonoThreadInfo *info = mono_thread_info_current ();
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_PIPE,
+ (gpointer *)&pipe_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up pipe handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+ fd = pipe_handle->fd;
+
+ if(bytesread!=NULL) {
+ *bytesread=0;
+ }
+
+ if(!(pipe_handle->fileaccess & GENERIC_READ) &&
+ !(pipe_handle->fileaccess & GENERIC_ALL)) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: handle %p doesn't have GENERIC_READ access: %u",
+ __func__, handle, pipe_handle->fileaccess);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: reading up to %d bytes from pipe %p", __func__,
+ numbytes, handle);
+
+ do {
+ ret=read(fd, buffer, numbytes);
+ } while (ret==-1 && errno==EINTR && !mono_thread_info_is_interrupt_state (info));
+
+ if (ret == -1) {
+ if (errno == EINTR) {
+ ret = 0;
+ } else {
+ _wapi_set_last_error_from_errno ();
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read of handle %p error: %s", __func__,
+ handle, strerror(errno));
+
+ return(FALSE);
+ }
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: read %d bytes from pipe %p", __func__, ret, handle);
+
+ if(bytesread!=NULL) {
+ *bytesread=ret;
+ }
+
+ return(TRUE);
+}
+
+static gboolean
+pipe_write(gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
+{
+ MonoW32HandleFile *pipe_handle;
+ gboolean ok;
+ gint ret, fd;
+ MonoThreadInfo *info = mono_thread_info_current ();
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_PIPE,
+ (gpointer *)&pipe_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up pipe handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+ fd = pipe_handle->fd;
+
+ if(byteswritten!=NULL) {
+ *byteswritten=0;
+ }
+
+ if(!(pipe_handle->fileaccess & GENERIC_WRITE) &&
+ !(pipe_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+
+ SetLastError (ERROR_ACCESS_DENIED);
+ return(FALSE);
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: writing up to %d bytes to pipe %p", __func__, numbytes,
+ handle);
+
+ do {
+ ret = write (fd, buffer, numbytes);
+ } while (ret == -1 && errno == EINTR &&
+ !mono_thread_info_is_interrupt_state (info));
+
+ if (ret == -1) {
+ if (errno == EINTR) {
+ ret = 0;
+ } else {
+ _wapi_set_last_error_from_errno ();
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write of handle %p error: %s", __func__,
+ handle, strerror(errno));
+
+ return(FALSE);
+ }
+ }
+ if(byteswritten!=NULL) {
+ *byteswritten=ret;
+ }
+
+ return(TRUE);
+}
+
+static gint convert_flags(guint32 fileaccess, guint32 createmode)
+{
+ gint flags=0;
+
+ switch(fileaccess) {
+ case GENERIC_READ:
+ flags=O_RDONLY;
+ break;
+ case GENERIC_WRITE:
+ flags=O_WRONLY;
+ break;
+ case GENERIC_READ|GENERIC_WRITE:
+ flags=O_RDWR;
+ break;
+ default:
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unknown access type 0x%x", __func__,
+ fileaccess);
+ break;
+ }
+
+ switch(createmode) {
+ case CREATE_NEW:
+ flags|=O_CREAT|O_EXCL;
+ break;
+ case CREATE_ALWAYS:
+ flags|=O_CREAT|O_TRUNC;
+ break;
+ case OPEN_EXISTING:
+ break;
+ case OPEN_ALWAYS:
+ flags|=O_CREAT;
+ break;
+ case TRUNCATE_EXISTING:
+ flags|=O_TRUNC;
+ break;
+ default:
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unknown create mode 0x%x", __func__,
+ createmode);
+ break;
+ }
+
+ return(flags);
+}
+
+#if 0 /* unused */
+static mode_t convert_perms(guint32 sharemode)
+{
+ mode_t perms=0600;
+
+ if(sharemode&FILE_SHARE_READ) {
+ perms|=044;
+ }
+ if(sharemode&FILE_SHARE_WRITE) {
+ perms|=022;
+ }
+
+ return(perms);
+}
+#endif
+
+static gboolean share_allows_open (struct stat *statbuf, guint32 sharemode,
+ guint32 fileaccess,
+ FileShare **share_info)
+{
+ gboolean file_already_shared;
+ guint32 file_existing_share, file_existing_access;
+
+ file_already_shared = file_share_get (statbuf->st_dev, statbuf->st_ino, sharemode, fileaccess, &file_existing_share, &file_existing_access, share_info);
+
+ if (file_already_shared) {
+ /* The reference to this share info was incremented
+ * when we looked it up, so be careful to put it back
+ * if we conclude we can't use this file.
+ */
+ if (file_existing_share == 0) {
+ /* Quick and easy, no possibility to share */
+ 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);
+
+ file_share_release (*share_info);
+
+ return(FALSE);
+ }
+
+ if (((file_existing_share == FILE_SHARE_READ) &&
+ (fileaccess != GENERIC_READ)) ||
+ ((file_existing_share == FILE_SHARE_WRITE) &&
+ (fileaccess != GENERIC_WRITE))) {
+ /* New access mode doesn't match up */
+ 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);
+
+ file_share_release (*share_info);
+
+ return(FALSE);
+ }
+
+ if (((file_existing_access & GENERIC_READ) &&
+ !(sharemode & FILE_SHARE_READ)) ||
+ ((file_existing_access & GENERIC_WRITE) &&
+ !(sharemode & FILE_SHARE_WRITE))) {
+ /* New share mode doesn't match up */
+ 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);
+
+ file_share_release (*share_info);
+
+ return(FALSE);
+ }
+ } else {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: New file!", __func__);
+ }
+
+ return(TRUE);
+}
+
+
+static gboolean
+share_allows_delete (struct stat *statbuf, FileShare **share_info)
+{
+ gboolean file_already_shared;
+ guint32 file_existing_share, file_existing_access;
+
+ 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);
+
+ if (file_already_shared) {
+ /* The reference to this share info was incremented
+ * when we looked it up, so be careful to put it back
+ * if we conclude we can't use this file.
+ */
+ if (file_existing_share == 0) {
+ /* Quick and easy, no possibility to share */
+ 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);
+
+ file_share_release (*share_info);
+
+ return(FALSE);
+ }
+
+ if (!(file_existing_share & FILE_SHARE_DELETE)) {
+ /* New access mode doesn't match up */
+ 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);
+
+ file_share_release (*share_info);
+
+ return(FALSE);
+ }
+ } else {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: New file!", __func__);
+ }
+
+ return(TRUE);
+}
+
+gpointer
+mono_w32file_create(const gunichar2 *name, guint32 fileaccess, guint32 sharemode, guint32 createmode, guint32 attrs)
+{
+ MonoW32HandleFile file_handle = {0};
+ gpointer handle;
+ gint flags=convert_flags(fileaccess, createmode);
+ /*mode_t perms=convert_perms(sharemode);*/
+ /* we don't use sharemode, because that relates to sharing of
+ * the file when the file is open and is already handled by
+ * other code, perms instead are the on-disk permissions and
+ * this is a sane default.
+ */
+ mode_t perms=0666;
+ gchar *filename;
+ gint fd, ret;
+ MonoW32HandleType handle_type;
+ struct stat statbuf;
+
+ if (attrs & FILE_ATTRIBUTE_TEMPORARY)
+ perms = 0600;
+
+ if (attrs & FILE_ATTRIBUTE_ENCRYPTED){
+ SetLastError (ERROR_ENCRYPTION_FAILED);
+ return INVALID_HANDLE_VALUE;
+ }
+
+ if (name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(INVALID_HANDLE_VALUE);
+ }
+
+ filename = mono_unicode_to_external (name);
+ if (filename == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(INVALID_HANDLE_VALUE);
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Opening %s with share 0x%x and access 0x%x", __func__,
+ filename, sharemode, fileaccess);
+
+ fd = _wapi_open (filename, flags, perms);
+
+ /* If we were trying to open a directory with write permissions
+ * (e.g. O_WRONLY or O_RDWR), this call will fail with
+ * EISDIR. However, this is a bit bogus because calls to
+ * manipulate the directory (e.g. mono_w32file_set_times) will still work on
+ * the directory because they use other API calls
+ * (e.g. utime()). Hence, if we failed with the EISDIR error, try
+ * to open the directory again without write permission.
+ */
+ if (fd == -1 && errno == EISDIR)
+ {
+ /* Try again but don't try to make it writable */
+ fd = _wapi_open (filename, flags & ~(O_RDWR|O_WRONLY), perms);
+ }
+
+ if (fd == -1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Error opening file %s: %s", __func__, filename,
+ strerror(errno));
+ _wapi_set_last_path_error_from_errno (NULL, filename);
+ g_free (filename);
+
+ return(INVALID_HANDLE_VALUE);
+ }
+
+ if (fd >= mono_w32handle_fd_reserve) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: File descriptor is too big", __func__);
+
+ SetLastError (ERROR_TOO_MANY_OPEN_FILES);
+
+ close (fd);
+ g_free (filename);
+
+ return(INVALID_HANDLE_VALUE);
+ }
+
+ ret = fstat (fd, &statbuf);
+ if (ret == -1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fstat error of file %s: %s", __func__,
+ filename, strerror (errno));
+ _wapi_set_last_error_from_errno ();
+ g_free (filename);
+ close (fd);
+
+ return(INVALID_HANDLE_VALUE);
+ }
+#ifdef __native_client__
+ /* Workaround: Native Client currently returns the same fake inode
+ * for all files, so do a simple hash on the filename so we don't
+ * use the same share info for each file.
+ */
+ statbuf.st_ino = g_str_hash(filename);
+#endif
+
+ if (share_allows_open (&statbuf, sharemode, fileaccess,
+ &file_handle.share_info) == FALSE) {
+ SetLastError (ERROR_SHARING_VIOLATION);
+ g_free (filename);
+ close (fd);
+
+ return (INVALID_HANDLE_VALUE);
+ }
+ if (file_handle.share_info == NULL) {
+ /* No space, so no more files can be opened */
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: No space in the share table", __func__);
+
+ SetLastError (ERROR_TOO_MANY_OPEN_FILES);
+ close (fd);
+ g_free (filename);
+
+ return(INVALID_HANDLE_VALUE);
+ }
+
+ file_handle.filename = filename;
+
+ file_handle.fd = fd;
+ file_handle.fileaccess=fileaccess;
+ file_handle.sharemode=sharemode;
+ file_handle.attrs=attrs;
+
+#ifdef HAVE_POSIX_FADVISE
+ if (attrs & FILE_FLAG_SEQUENTIAL_SCAN)
+ posix_fadvise (fd, 0, 0, POSIX_FADV_SEQUENTIAL);
+ if (attrs & FILE_FLAG_RANDOM_ACCESS)
+ posix_fadvise (fd, 0, 0, POSIX_FADV_RANDOM);
+#endif
+
+#ifdef F_RDAHEAD
+ if (attrs & FILE_FLAG_SEQUENTIAL_SCAN)
+ fcntl(fd, F_RDAHEAD, 1);
+#endif
+
+#ifndef S_ISFIFO
+#define S_ISFIFO(m) ((m & S_IFIFO) != 0)
+#endif
+ if (S_ISFIFO (statbuf.st_mode)) {
+ handle_type = MONO_W32HANDLE_PIPE;
+ /* maintain invariant that pipes have no filename */
+ file_handle.filename = NULL;
+ g_free (filename);
+ filename = NULL;
+ } else if (S_ISCHR (statbuf.st_mode)) {
+ handle_type = MONO_W32HANDLE_CONSOLE;
+ } else {
+ handle_type = MONO_W32HANDLE_FILE;
+ }
+
+ handle = mono_w32handle_new_fd (handle_type, fd, &file_handle);
+ if (handle == INVALID_HANDLE_VALUE) {
+ g_warning ("%s: error creating file handle", __func__);
+ g_free (filename);
+ close (fd);
+
+ SetLastError (ERROR_GEN_FAILURE);
+ return(INVALID_HANDLE_VALUE);
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: returning handle %p", __func__, handle);
+
+ return(handle);
+}
+
+gboolean mono_w32file_delete(const gunichar2 *name)
+{
+ gchar *filename;
+ gint retval;
+ gboolean ret = FALSE;
+ guint32 attrs;
+#if 0
+ struct stat statbuf;
+ FileShare *shareinfo;
+#endif
+
+ if(name==NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ filename=mono_unicode_to_external(name);
+ if(filename==NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ attrs = mono_w32file_get_attributes (name);
+ if (attrs == INVALID_FILE_ATTRIBUTES) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file attributes error", __func__);
+ /* Error set by mono_w32file_get_attributes() */
+ g_free (filename);
+ return(FALSE);
+ }
+
+#if 0
+ /* Check to make sure sharing allows us to open the file for
+ * writing. See bug 323389.
+ *
+ * Do the checks that don't need an open file descriptor, for
+ * simplicity's sake. If we really have to do the full checks
+ * then we can implement that later.
+ */
+ if (_wapi_stat (filename, &statbuf) < 0) {
+ _wapi_set_last_path_error_from_errno (NULL, filename);
+ g_free (filename);
+ return(FALSE);
+ }
+
+ if (share_allows_open (&statbuf, 0, GENERIC_WRITE,
+ &shareinfo) == FALSE) {
+ SetLastError (ERROR_SHARING_VIOLATION);
+ g_free (filename);
+ return FALSE;
+ }
+ if (shareinfo)
+ file_share_release (shareinfo);
+#endif
+
+ retval = _wapi_unlink (filename);
+
+ if (retval == -1) {
+ _wapi_set_last_path_error_from_errno (NULL, filename);
+ } else {
+ ret = TRUE;
+ }
+
+ g_free(filename);
+
+ return(ret);
+}
+
+static gboolean
+MoveFile (gunichar2 *name, gunichar2 *dest_name)
+{
+ gchar *utf8_name, *utf8_dest_name;
+ gint result, errno_copy;
+ struct stat stat_src, stat_dest;
+ gboolean ret = FALSE;
+ FileShare *shareinfo;
+
+ if(name==NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ utf8_name = mono_unicode_to_external (name);
+ if (utf8_name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return FALSE;
+ }
+
+ if(dest_name==NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ g_free (utf8_name);
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ utf8_dest_name = mono_unicode_to_external (dest_name);
+ if (utf8_dest_name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ g_free (utf8_name);
+ SetLastError (ERROR_INVALID_NAME);
+ return FALSE;
+ }
+
+ /*
+ * In C# land we check for the existence of src, but not for dest.
+ * We check it here and return the failure if dest exists and is not
+ * the same file as src.
+ */
+ if (_wapi_stat (utf8_name, &stat_src) < 0) {
+ if (errno != ENOENT || _wapi_lstat (utf8_name, &stat_src) < 0) {
+ _wapi_set_last_path_error_from_errno (NULL, utf8_name);
+ g_free (utf8_name);
+ g_free (utf8_dest_name);
+ return FALSE;
+ }
+ }
+
+ if (!_wapi_stat (utf8_dest_name, &stat_dest)) {
+ if (stat_dest.st_dev != stat_src.st_dev ||
+ stat_dest.st_ino != stat_src.st_ino) {
+ g_free (utf8_name);
+ g_free (utf8_dest_name);
+ SetLastError (ERROR_ALREADY_EXISTS);
+ return FALSE;
+ }
+ }
+
+ /* Check to make that we have delete sharing permission.
+ * See https://bugzilla.xamarin.com/show_bug.cgi?id=17009
+ *
+ * Do the checks that don't need an open file descriptor, for
+ * simplicity's sake. If we really have to do the full checks
+ * then we can implement that later.
+ */
+ if (share_allows_delete (&stat_src, &shareinfo) == FALSE) {
+ SetLastError (ERROR_SHARING_VIOLATION);
+ return FALSE;
+ }
+ if (shareinfo)
+ file_share_release (shareinfo);
+
+ result = _wapi_rename (utf8_name, utf8_dest_name);
+ errno_copy = errno;
+
+ if (result == -1) {
+ switch(errno_copy) {
+ case EEXIST:
+ SetLastError (ERROR_ALREADY_EXISTS);
+ break;
+
+ case EXDEV:
+ /* Ignore here, it is dealt with below */
+ break;
+
+ case ENOENT:
+ /* We already know src exists. Must be dest that doesn't exist. */
+ _wapi_set_last_path_error_from_errno (NULL, utf8_dest_name);
+ break;
+
+ default:
+ _wapi_set_last_error_from_errno ();
+ }
+ }
+
+ g_free (utf8_name);
+ g_free (utf8_dest_name);
+
+ if (result != 0 && errno_copy == EXDEV) {
+ gint32 copy_error;
+
+ if (S_ISDIR (stat_src.st_mode)) {
+ SetLastError (ERROR_NOT_SAME_DEVICE);
+ return FALSE;
+ }
+ /* Try a copy to the new location, and delete the source */
+ if (!mono_w32file_copy (name, dest_name, FALSE, ©_error)) {
+ /* mono_w32file_copy will set the error */
+ return(FALSE);
+ }
+
+ return(mono_w32file_delete (name));
+ }
+
+ if (result == 0) {
+ ret = TRUE;
+ }
+
+ return(ret);
+}
+
+static gboolean
+write_file (gint src_fd, gint dest_fd, struct stat *st_src, gboolean report_errors)
+{
+ gint remain, n;
+ gchar *buf, *wbuf;
+ gint buf_size = st_src->st_blksize;
+ MonoThreadInfo *info = mono_thread_info_current ();
+
+ buf_size = buf_size < 8192 ? 8192 : (buf_size > 65536 ? 65536 : buf_size);
+ buf = (gchar *) g_malloc (buf_size);
+
+ for (;;) {
+ remain = read (src_fd, buf, buf_size);
+ if (remain < 0) {
+ if (errno == EINTR && !mono_thread_info_is_interrupt_state (info))
+ continue;
+
+ if (report_errors)
+ _wapi_set_last_error_from_errno ();
+
+ g_free (buf);
+ return FALSE;
+ }
+ if (remain == 0) {
+ break;
+ }
+
+ wbuf = buf;
+ while (remain > 0) {
+ if ((n = write (dest_fd, wbuf, remain)) < 0) {
+ if (errno == EINTR && !mono_thread_info_is_interrupt_state (info))
+ continue;
+
+ if (report_errors)
+ _wapi_set_last_error_from_errno ();
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: write failed.", __func__);
+ g_free (buf);
+ return FALSE;
+ }
+
+ remain -= n;
+ wbuf += n;
+ }
+ }
+
+ g_free (buf);
+ return TRUE ;
+}
+
+static gboolean
+CopyFile (const gunichar2 *name, const gunichar2 *dest_name, gboolean fail_if_exists)
+{
+ gchar *utf8_src, *utf8_dest;
+ gint src_fd, dest_fd;
+ struct stat st, dest_st;
+ struct utimbuf dest_time;
+ gboolean ret = TRUE;
+ gint ret_utime;
+
+ if(name==NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ utf8_src = mono_unicode_to_external (name);
+ if (utf8_src == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of source returned NULL",
+ __func__);
+
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+
+ if(dest_name==NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: dest is NULL", __func__);
+
+ g_free (utf8_src);
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ utf8_dest = mono_unicode_to_external (dest_name);
+ if (utf8_dest == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of dest returned NULL",
+ __func__);
+
+ SetLastError (ERROR_INVALID_PARAMETER);
+
+ g_free (utf8_src);
+
+ return(FALSE);
+ }
+
+ src_fd = _wapi_open (utf8_src, O_RDONLY, 0);
+ if (src_fd < 0) {
+ _wapi_set_last_path_error_from_errno (NULL, utf8_src);
+
+ g_free (utf8_src);
+ g_free (utf8_dest);
+
+ return(FALSE);
+ }
+
+ if (fstat (src_fd, &st) < 0) {
+ _wapi_set_last_error_from_errno ();
+
+ g_free (utf8_src);
+ g_free (utf8_dest);
+ close (src_fd);
+
+ return(FALSE);
+ }
+
+ /* Before trying to open/create the dest, we need to report a 'file busy'
+ * error if src and dest are actually the same file. We do the check here to take
+ * advantage of the IOMAP capability */
+ if (!_wapi_stat (utf8_dest, &dest_st) && st.st_dev == dest_st.st_dev &&
+ st.st_ino == dest_st.st_ino) {
+
+ g_free (utf8_src);
+ g_free (utf8_dest);
+ close (src_fd);
+
+ SetLastError (ERROR_SHARING_VIOLATION);
+ return (FALSE);
+ }
+
+ if (fail_if_exists) {
+ dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_EXCL, st.st_mode);
+ } else {
+ /* FIXME: it kinda sucks that this code path potentially scans
+ * the directory twice due to the weird SetLastError()
+ * behavior. */
+ dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_TRUNC, st.st_mode);
+ if (dest_fd < 0) {
+ /* The file does not exist, try creating it */
+ dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_TRUNC, st.st_mode);
+ } else {
+ /* Apparently this error is set if we
+ * overwrite the dest file
+ */
+ SetLastError (ERROR_ALREADY_EXISTS);
+ }
+ }
+ if (dest_fd < 0) {
+ _wapi_set_last_error_from_errno ();
+
+ g_free (utf8_src);
+ g_free (utf8_dest);
+ close (src_fd);
+
+ return(FALSE);
+ }
+
+ if (!write_file (src_fd, dest_fd, &st, TRUE))
+ ret = FALSE;
+
+ close (src_fd);
+ close (dest_fd);
+
+ dest_time.modtime = st.st_mtime;
+ dest_time.actime = st.st_atime;
+ ret_utime = utime (utf8_dest, &dest_time);
+ if (ret_utime == -1)
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file [%s] utime failed: %s", __func__, utf8_dest, strerror(errno));
+
+ g_free (utf8_src);
+ g_free (utf8_dest);
+
+ return ret;
+}
+
+static gchar*
+convert_arg_to_utf8 (const gunichar2 *arg, const gchar *arg_name)
+{
+ gchar *utf8_ret;
+
+ if (arg == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: %s is NULL", __func__, arg_name);
+ SetLastError (ERROR_INVALID_NAME);
+ return NULL;
+ }
+
+ utf8_ret = mono_unicode_to_external (arg);
+ if (utf8_ret == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion of %s returned NULL",
+ __func__, arg_name);
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return NULL;
+ }
+
+ return utf8_ret;
+}
+
+static gboolean
+ReplaceFile (const gunichar2 *replacedFileName, const gunichar2 *replacementFileName, const gunichar2 *backupFileName, guint32 replaceFlags, gpointer exclude, gpointer reserved)
+{
+ gint result, backup_fd = -1,replaced_fd = -1;
+ gchar *utf8_replacedFileName, *utf8_replacementFileName = NULL, *utf8_backupFileName = NULL;
+ struct stat stBackup;
+ gboolean ret = FALSE;
+
+ if (!(utf8_replacedFileName = convert_arg_to_utf8 (replacedFileName, "replacedFileName")))
+ return FALSE;
+ if (!(utf8_replacementFileName = convert_arg_to_utf8 (replacementFileName, "replacementFileName")))
+ goto replace_cleanup;
+ if (backupFileName != NULL) {
+ if (!(utf8_backupFileName = convert_arg_to_utf8 (backupFileName, "backupFileName")))
+ goto replace_cleanup;
+ }
+
+ if (utf8_backupFileName) {
+ // Open the backup file for read so we can restore the file if an error occurs.
+ backup_fd = _wapi_open (utf8_backupFileName, O_RDONLY, 0);
+ result = _wapi_rename (utf8_replacedFileName, utf8_backupFileName);
+ if (result == -1)
+ goto replace_cleanup;
+ }
+
+ result = _wapi_rename (utf8_replacementFileName, utf8_replacedFileName);
+ if (result == -1) {
+ _wapi_set_last_path_error_from_errno (NULL, utf8_replacementFileName);
+ _wapi_rename (utf8_backupFileName, utf8_replacedFileName);
+ if (backup_fd != -1 && !fstat (backup_fd, &stBackup)) {
+ replaced_fd = _wapi_open (utf8_backupFileName, O_WRONLY | O_CREAT | O_TRUNC,
+ stBackup.st_mode);
+
+ if (replaced_fd == -1)
+ goto replace_cleanup;
+
+ write_file (backup_fd, replaced_fd, &stBackup, FALSE);
+ }
+
+ goto replace_cleanup;
+ }
+
+ ret = TRUE;
+
+replace_cleanup:
+ g_free (utf8_replacedFileName);
+ g_free (utf8_replacementFileName);
+ g_free (utf8_backupFileName);
+ if (backup_fd != -1)
+ close (backup_fd);
+ if (replaced_fd != -1)
+ close (replaced_fd);
+ return ret;
+}
+
+static mono_mutex_t stdhandle_mutex;
+
+static gpointer
+_wapi_stdhandle_create (gint fd, const gchar *name)
+{
+ gpointer handle;
+ gint flags;
+ MonoW32HandleFile file_handle = {0};
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: creating standard handle type %s, fd %d", __func__, name, fd);
+
+#if !defined(__native_client__)
+ /* Check if fd is valid */
+ do {
+ flags = fcntl(fd, F_GETFL);
+ } while (flags == -1 && errno == EINTR);
+
+ if (flags == -1) {
+ /* Invalid fd. Not really much point checking for EBADF
+ * specifically
+ */
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: fcntl error on fd %d: %s", __func__, fd, strerror(errno));
+
+ SetLastError (_wapi_get_win32_file_error (errno));
+ return INVALID_HANDLE_VALUE;
+ }
+
+ switch (flags & (O_RDONLY|O_WRONLY|O_RDWR)) {
+ case O_RDONLY:
+ file_handle.fileaccess = GENERIC_READ;
+ break;
+ case O_WRONLY:
+ file_handle.fileaccess = GENERIC_WRITE;
+ break;
+ case O_RDWR:
+ file_handle.fileaccess = GENERIC_READ | GENERIC_WRITE;
+ break;
+ default:
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Can't figure out flags 0x%x", __func__, flags);
+ file_handle.fileaccess = 0;
+ break;
+ }
+#else
+ /*
+ * fcntl will return -1 in nacl, as there is no real file system API.
+ * Yet, standard streams are available.
+ */
+ file_handle.fileaccess = (fd == STDIN_FILENO) ? GENERIC_READ : GENERIC_WRITE;
+#endif
+
+ file_handle.fd = fd;
+ file_handle.filename = g_strdup(name);
+ /* some default security attributes might be needed */
+ file_handle.security_attributes = 0;
+
+ /* Apparently input handles can't be written to. (I don't
+ * know if output or error handles can't be read from.)
+ */
+ if (fd == 0)
+ file_handle.fileaccess &= ~GENERIC_WRITE;
+
+ file_handle.sharemode = 0;
+ file_handle.attrs = 0;
+
+ handle = mono_w32handle_new_fd (MONO_W32HANDLE_CONSOLE, fd, &file_handle);
+ if (handle == INVALID_HANDLE_VALUE) {
+ g_warning ("%s: error creating file handle", __func__);
+ SetLastError (ERROR_GEN_FAILURE);
+ return INVALID_HANDLE_VALUE;
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: returning handle %p", __func__, handle);
+
+ return handle;
+}
+
+enum {
+ STD_INPUT_HANDLE = -10,
+ STD_OUTPUT_HANDLE = -11,
+ STD_ERROR_HANDLE = -12,
+};
+
+static gpointer
+mono_w32file_get_std_handle (gint stdhandle)
+{
+ MonoW32HandleFile *file_handle;
+ gpointer handle;
+ gint fd;
+ const gchar *name;
+ gboolean ok;
+
+ switch(stdhandle) {
+ case STD_INPUT_HANDLE:
+ fd = 0;
+ name = "<stdin>";
+ break;
+
+ case STD_OUTPUT_HANDLE:
+ fd = 1;
+ name = "<stdout>";
+ break;
+
+ case STD_ERROR_HANDLE:
+ fd = 2;
+ name = "<stderr>";
+ break;
+
+ default:
+ g_assert_not_reached ();
+ }
+
+ handle = GINT_TO_POINTER (fd);
+
+ mono_os_mutex_lock (&stdhandle_mutex);
+
+ ok = mono_w32handle_lookup (handle, MONO_W32HANDLE_CONSOLE,
+ (gpointer *)&file_handle);
+ if (ok == FALSE) {
+ /* Need to create this console handle */
+ handle = _wapi_stdhandle_create (fd, name);
+
+ if (handle == INVALID_HANDLE_VALUE) {
+ SetLastError (ERROR_NO_MORE_FILES);
+ goto done;
+ }
+ } else {
+ /* Add a reference to this handle */
+ mono_w32handle_ref (handle);
+ }
+
+ done:
+ mono_os_mutex_unlock (&stdhandle_mutex);
+
+ return(handle);
+}
+
+gboolean
+mono_w32file_read (gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
+{
+ MonoW32HandleType type;
+
+ type = mono_w32handle_get_type (handle);
+
+ if(io_ops[type].readfile==NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ return(io_ops[type].readfile (handle, buffer, numbytes, bytesread));
+}
+
+gboolean
+mono_w32file_write (gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
+{
+ MonoW32HandleType type;
+
+ type = mono_w32handle_get_type (handle);
+
+ if(io_ops[type].writefile==NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ return(io_ops[type].writefile (handle, buffer, numbytes, byteswritten));
+}
+
+gboolean
+mono_w32file_flush (gpointer handle)
+{
+ MonoW32HandleType type;
+
+ type = mono_w32handle_get_type (handle);
+
+ if(io_ops[type].flushfile==NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ return(io_ops[type].flushfile (handle));
+}
+
+gboolean
+mono_w32file_truncate (gpointer handle)
+{
+ MonoW32HandleType type;
+
+ type = mono_w32handle_get_type (handle);
+
+ if (io_ops[type].setendoffile == NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ return(io_ops[type].setendoffile (handle));
+}
+
+guint32
+mono_w32file_seek (gpointer handle, gint32 movedistance, gint32 *highmovedistance, guint32 method)
+{
+ MonoW32HandleType type;
+
+ type = mono_w32handle_get_type (handle);
+
+ if (io_ops[type].seek == NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(INVALID_SET_FILE_POINTER);
+ }
+
+ return(io_ops[type].seek (handle, movedistance, highmovedistance,
+ method));
+}
+
+gint
+mono_w32file_get_type(gpointer handle)
+{
+ MonoW32HandleType type;
+
+ type = mono_w32handle_get_type (handle);
+
+ if (io_ops[type].getfiletype == NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FILE_TYPE_UNKNOWN);
+ }
+
+ return(io_ops[type].getfiletype ());
+}
+
+static guint32
+GetFileSize(gpointer handle, guint32 *highsize)
+{
+ MonoW32HandleType type;
+
+ type = mono_w32handle_get_type (handle);
+
+ if (io_ops[type].getfilesize == NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(INVALID_FILE_SIZE);
+ }
+
+ return(io_ops[type].getfilesize (handle, highsize));
+}
+
+gboolean
+mono_w32file_get_times(gpointer handle, FILETIME *create_time, FILETIME *access_time, FILETIME *write_time)
+{
+ MonoW32HandleType type;
+
+ type = mono_w32handle_get_type (handle);
+
+ if (io_ops[type].getfiletime == NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ return(io_ops[type].getfiletime (handle, create_time, access_time,
+ write_time));
+}
+
+gboolean
+mono_w32file_set_times(gpointer handle, const FILETIME *create_time, const FILETIME *access_time, const FILETIME *write_time)
+{
+ MonoW32HandleType type;
+
+ type = mono_w32handle_get_type (handle);
+
+ if (io_ops[type].setfiletime == NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ return(io_ops[type].setfiletime (handle, create_time, access_time,
+ write_time));
+}
+
+/* A tick is a 100-nanosecond interval. File time epoch is Midnight,
+ * January 1 1601 GMT
+ */
+
+#define TICKS_PER_MILLISECOND 10000L
+#define TICKS_PER_SECOND 10000000L
+#define TICKS_PER_MINUTE 600000000L
+#define TICKS_PER_HOUR 36000000000LL
+#define TICKS_PER_DAY 864000000000LL
+
+#define isleap(y) ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0))
+
+static const guint16 mon_yday[2][13]={
+ {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
+ {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366},
+};
+
+gboolean
+mono_w32file_filetime_to_systemtime(const FILETIME *file_time, SYSTEMTIME *system_time)
+{
+ gint64 file_ticks, totaldays, rem, y;
+ const guint16 *ip;
+
+ if(system_time==NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: system_time NULL", __func__);
+
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+
+ file_ticks=((gint64)file_time->dwHighDateTime << 32) +
+ file_time->dwLowDateTime;
+
+ /* Really compares if file_ticks>=0x8000000000000000
+ * (LLONG_MAX+1) but we're working with a signed value for the
+ * year and day calculation to work later
+ */
+ if(file_ticks<0) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: file_time too big", __func__);
+
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+
+ totaldays=(file_ticks / TICKS_PER_DAY);
+ rem = file_ticks % TICKS_PER_DAY;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld rem: %lld", __func__, totaldays, rem);
+
+ system_time->wHour=rem/TICKS_PER_HOUR;
+ rem %= TICKS_PER_HOUR;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Hour: %d rem: %lld", __func__, system_time->wHour, rem);
+
+ system_time->wMinute = rem / TICKS_PER_MINUTE;
+ rem %= TICKS_PER_MINUTE;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Minute: %d rem: %lld", __func__, system_time->wMinute,
+ rem);
+
+ system_time->wSecond = rem / TICKS_PER_SECOND;
+ rem %= TICKS_PER_SECOND;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Second: %d rem: %lld", __func__, system_time->wSecond,
+ rem);
+
+ system_time->wMilliseconds = rem / TICKS_PER_MILLISECOND;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Milliseconds: %d", __func__,
+ system_time->wMilliseconds);
+
+ /* January 1, 1601 was a Monday, according to Emacs calendar */
+ system_time->wDayOfWeek = ((1 + totaldays) % 7) + 1;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Day of week: %d", __func__, system_time->wDayOfWeek);
+
+ /* This algorithm to find year and month given days from epoch
+ * from glibc
+ */
+ y=1601;
+
+#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
+#define LEAPS_THRU_END_OF(y) (DIV(y, 4) - DIV (y, 100) + DIV (y, 400))
+
+ while(totaldays < 0 || totaldays >= (isleap(y)?366:365)) {
+ /* Guess a corrected year, assuming 365 days per year */
+ gint64 yg = y + totaldays / 365 - (totaldays % 365 < 0);
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld yg: %lld y: %lld", __func__,
+ totaldays, yg,
+ y);
+ g_message("%s: LEAPS(yg): %lld LEAPS(y): %lld", __func__,
+ LEAPS_THRU_END_OF(yg-1), LEAPS_THRU_END_OF(y-1));
+
+ /* Adjust days and y to match the guessed year. */
+ totaldays -= ((yg - y) * 365
+ + LEAPS_THRU_END_OF (yg - 1)
+ - LEAPS_THRU_END_OF (y - 1));
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld", __func__, totaldays);
+ y = yg;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: y: %lld", __func__, y);
+ }
+
+ system_time->wYear = y;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Year: %d", __func__, system_time->wYear);
+
+ ip = mon_yday[isleap(y)];
+
+ for(y=11; totaldays < ip[y]; --y) {
+ continue;
+ }
+ totaldays-=ip[y];
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: totaldays: %lld", __func__, totaldays);
+
+ system_time->wMonth = y + 1;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Month: %d", __func__, system_time->wMonth);
+
+ system_time->wDay = totaldays + 1;
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Day: %d", __func__, system_time->wDay);
+
+ return(TRUE);
+}
+
+gpointer
+mono_w32file_find_first (const gunichar2 *pattern, WIN32_FIND_DATA *find_data)
+{
+ MonoW32HandleFind find_handle = {0};
+ gpointer handle;
+ gchar *utf8_pattern = NULL, *dir_part, *entry_part;
+ gint result;
+
+ if (pattern == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: pattern is NULL", __func__);
+
+ SetLastError (ERROR_PATH_NOT_FOUND);
+ return(INVALID_HANDLE_VALUE);
+ }
+
+ utf8_pattern = mono_unicode_to_external (pattern);
+ if (utf8_pattern == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(INVALID_HANDLE_VALUE);
+ }
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: looking for [%s]", __func__, utf8_pattern);
+
+ /* Figure out which bit of the pattern is the directory */
+ dir_part = _wapi_dirname (utf8_pattern);
+ entry_part = _wapi_basename (utf8_pattern);
+
+#if 0
+ /* Don't do this check for now, it breaks if directories
+ * really do have metachars in their names (see bug 58116).
+ * FIXME: Figure out a better solution to keep some checks...
+ */
+ if (strchr (dir_part, '*') || strchr (dir_part, '?')) {
+ SetLastError (ERROR_INVALID_NAME);
+ g_free (dir_part);
+ g_free (entry_part);
+ g_free (utf8_pattern);
+ return(INVALID_HANDLE_VALUE);
+ }
+#endif
+
+ /* The pattern can specify a directory or a set of files.
+ *
+ * The pattern can have wildcard characters ? and *, but only
+ * in the section after the last directory delimiter. (Return
+ * ERROR_INVALID_NAME if there are wildcards in earlier path
+ * sections.) "*" has the usual 0-or-more chars meaning. "?"
+ * means "match one character", "??" seems to mean "match one
+ * or two characters", "???" seems to mean "match one, two or
+ * three characters", etc. Windows will also try and match
+ * the mangled "short name" of files, so 8 character patterns
+ * with wildcards will show some surprising results.
+ *
+ * All the written documentation I can find says that '?'
+ * should only match one character, and doesn't mention '??',
+ * '???' etc. I'm going to assume that the strict behaviour
+ * (ie '???' means three and only three characters) is the
+ * correct one, because that lets me use fnmatch(3) rather
+ * than mess around with regexes.
+ */
+
+ find_handle.namelist = NULL;
+ result = _wapi_io_scandir (dir_part, entry_part,
+ &find_handle.namelist);
+
+ if (result == 0) {
+ /* No files, which windows seems to call
+ * FILE_NOT_FOUND
+ */
+ SetLastError (ERROR_FILE_NOT_FOUND);
+ g_free (utf8_pattern);
+ g_free (entry_part);
+ g_free (dir_part);
+ return (INVALID_HANDLE_VALUE);
+ }
+
+ if (result < 0) {
+ _wapi_set_last_path_error_from_errno (dir_part, NULL);
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: scandir error: %s", __func__, g_strerror (errno));
+ g_free (utf8_pattern);
+ g_free (entry_part);
+ g_free (dir_part);
+ return (INVALID_HANDLE_VALUE);
+ }
+
+ g_free (utf8_pattern);
+ g_free (entry_part);
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Got %d matches", __func__, result);
+
+ find_handle.dir_part = dir_part;
+ find_handle.num = result;
+ find_handle.count = 0;
+
+ handle = mono_w32handle_new (MONO_W32HANDLE_FIND, &find_handle);
+ if (handle == INVALID_HANDLE_VALUE) {
+ g_warning ("%s: error creating find handle", __func__);
+ g_free (dir_part);
+ g_free (entry_part);
+ g_free (utf8_pattern);
+ SetLastError (ERROR_GEN_FAILURE);
+
+ return(INVALID_HANDLE_VALUE);
+ }
+
+ if (handle != INVALID_HANDLE_VALUE &&
+ !mono_w32file_find_next (handle, find_data)) {
+ mono_w32file_find_close (handle);
+ SetLastError (ERROR_NO_MORE_FILES);
+ handle = INVALID_HANDLE_VALUE;
+ }
+
+ return (handle);
+}
+
+gboolean
+mono_w32file_find_next (gpointer handle, WIN32_FIND_DATA *find_data)
+{
+ MonoW32HandleFind *find_handle;
+ gboolean ok;
+ struct stat buf, linkbuf;
+ gint result;
+ gchar *filename;
+ gchar *utf8_filename, *utf8_basename;
+ gunichar2 *utf16_basename;
+ time_t create_time;
+ glong bytes;
+ gboolean ret = FALSE;
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FIND,
+ (gpointer *)&find_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up find handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ mono_w32handle_lock_handle (handle);
+
+retry:
+ if (find_handle->count >= find_handle->num) {
+ SetLastError (ERROR_NO_MORE_FILES);
+ goto cleanup;
+ }
+
+ /* stat next match */
+
+ filename = g_build_filename (find_handle->dir_part, find_handle->namelist[find_handle->count ++], NULL);
+
+ result = _wapi_stat (filename, &buf);
+ if (result == -1 && errno == ENOENT) {
+ /* Might be a dangling symlink */
+ result = _wapi_lstat (filename, &buf);
+ }
+
+ if (result != 0) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: stat failed: %s", __func__, filename);
+
+ g_free (filename);
+ goto retry;
+ }
+
+#ifndef __native_client__
+ result = _wapi_lstat (filename, &linkbuf);
+ if (result != 0) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: lstat failed: %s", __func__, filename);
+
+ g_free (filename);
+ goto retry;
+ }
+#endif
+
+ utf8_filename = mono_utf8_from_external (filename);
+ if (utf8_filename == NULL) {
+ /* We couldn't turn this filename into utf8 (eg the
+ * encoding of the name wasn't convertible), so just
+ * ignore it.
+ */
+ g_warning ("%s: Bad encoding for '%s'\nConsider using MONO_EXTERNAL_ENCODINGS\n", __func__, filename);
+
+ g_free (filename);
+ goto retry;
+ }
+ g_free (filename);
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Found [%s]", __func__, utf8_filename);
+
+ /* fill data block */
+
+ if (buf.st_mtime < buf.st_ctime)
+ create_time = buf.st_mtime;
+ else
+ create_time = buf.st_ctime;
+
+#ifdef __native_client__
+ find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, NULL);
+#else
+ find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, &linkbuf);
+#endif
+
+ time_t_to_filetime (create_time, &find_data->ftCreationTime);
+ time_t_to_filetime (buf.st_atime, &find_data->ftLastAccessTime);
+ time_t_to_filetime (buf.st_mtime, &find_data->ftLastWriteTime);
+
+ if (find_data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
+ find_data->nFileSizeHigh = 0;
+ find_data->nFileSizeLow = 0;
+ } else {
+ find_data->nFileSizeHigh = buf.st_size >> 32;
+ find_data->nFileSizeLow = buf.st_size & 0xFFFFFFFF;
+ }
+
+ find_data->dwReserved0 = 0;
+ find_data->dwReserved1 = 0;
+
+ utf8_basename = _wapi_basename (utf8_filename);
+ utf16_basename = g_utf8_to_utf16 (utf8_basename, -1, NULL, &bytes,
+ NULL);
+ if(utf16_basename==NULL) {
+ g_free (utf8_basename);
+ g_free (utf8_filename);
+ goto retry;
+ }
+ ret = TRUE;
+
+ /* utf16 is 2 * utf8 */
+ bytes *= 2;
+
+ memset (find_data->cFileName, '\0', (MAX_PATH*2));
+
+ /* Truncating a utf16 string like this might leave the last
+ * gchar incomplete
+ */
+ memcpy (find_data->cFileName, utf16_basename,
+ bytes<(MAX_PATH*2)-2?bytes:(MAX_PATH*2)-2);
+
+ find_data->cAlternateFileName [0] = 0; /* not used */
+
+ g_free (utf8_basename);
+ g_free (utf8_filename);
+ g_free (utf16_basename);
+
+cleanup:
+ mono_w32handle_unlock_handle (handle);
+
+ return(ret);
+}
+
+gboolean
+mono_w32file_find_close (gpointer handle)
+{
+ MonoW32HandleFind *find_handle;
+ gboolean ok;
+
+ if (handle == NULL) {
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ ok=mono_w32handle_lookup (handle, MONO_W32HANDLE_FIND,
+ (gpointer *)&find_handle);
+ if(ok==FALSE) {
+ g_warning ("%s: error looking up find handle %p", __func__,
+ handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return(FALSE);
+ }
+
+ mono_w32handle_lock_handle (handle);
+
+ g_strfreev (find_handle->namelist);
+ g_free (find_handle->dir_part);
+
+ mono_w32handle_unlock_handle (handle);
+
+ mono_w32handle_unref (handle);
+
+ return(TRUE);
+}
+
+gboolean
+mono_w32file_create_directory (const gunichar2 *name)
+{
+ gchar *utf8_name;
+ gint result;
+
+ if (name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ utf8_name = mono_unicode_to_external (name);
+ if (utf8_name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return FALSE;
+ }
+
+ result = _wapi_mkdir (utf8_name, 0777);
+
+ if (result == 0) {
+ g_free (utf8_name);
+ return TRUE;
+ }
+
+ _wapi_set_last_path_error_from_errno (NULL, utf8_name);
+ g_free (utf8_name);
+ return FALSE;
+}
+
+gboolean
+mono_w32file_remove_directory (const gunichar2 *name)
+{
+ gchar *utf8_name;
+ gint result;
+
+ if (name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ utf8_name = mono_unicode_to_external (name);
+ if (utf8_name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return FALSE;
+ }
+
+ result = _wapi_rmdir (utf8_name);
+ if (result == -1) {
+ _wapi_set_last_path_error_from_errno (NULL, utf8_name);
+ g_free (utf8_name);
+
+ return(FALSE);
+ }
+ g_free (utf8_name);
+
+ return(TRUE);
+}
+
+guint32
+mono_w32file_get_attributes (const gunichar2 *name)
+{
+ gchar *utf8_name;
+ struct stat buf, linkbuf;
+ gint result;
+ guint32 ret;
+
+ if (name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ utf8_name = mono_unicode_to_external (name);
+ if (utf8_name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return (INVALID_FILE_ATTRIBUTES);
+ }
+
+ result = _wapi_stat (utf8_name, &buf);
+ if (result == -1 && errno == ENOENT) {
+ /* Might be a dangling symlink... */
+ result = _wapi_lstat (utf8_name, &buf);
+ }
+
+ if (result != 0) {
+ _wapi_set_last_path_error_from_errno (NULL, utf8_name);
+ g_free (utf8_name);
+ return (INVALID_FILE_ATTRIBUTES);
+ }
+
+#ifndef __native_client__
+ result = _wapi_lstat (utf8_name, &linkbuf);
+ if (result != 0) {
+ _wapi_set_last_path_error_from_errno (NULL, utf8_name);
+ g_free (utf8_name);
+ return (INVALID_FILE_ATTRIBUTES);
+ }
+#endif
+
+#ifdef __native_client__
+ ret = _wapi_stat_to_file_attributes (utf8_name, &buf, NULL);
+#else
+ ret = _wapi_stat_to_file_attributes (utf8_name, &buf, &linkbuf);
+#endif
+
+ g_free (utf8_name);
+
+ return(ret);
+}
+
+gboolean
+mono_w32file_get_attributes_ex (const gunichar2 *name, MonoIOStat *stat)
+{
+ gchar *utf8_name;
+
+ struct stat buf, linkbuf;
+ gint result;
+
+ if (name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ utf8_name = mono_unicode_to_external (name);
+ if (utf8_name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return FALSE;
+ }
+
+ result = _wapi_stat (utf8_name, &buf);
+ if (result == -1 && errno == ENOENT) {
+ /* Might be a dangling symlink... */
+ result = _wapi_lstat (utf8_name, &buf);
+ }
+
+ if (result != 0) {
+ _wapi_set_last_path_error_from_errno (NULL, utf8_name);
+ g_free (utf8_name);
+ return FALSE;
+ }
+
+ result = _wapi_lstat (utf8_name, &linkbuf);
+ if (result != 0) {
+ _wapi_set_last_path_error_from_errno (NULL, utf8_name);
+ g_free (utf8_name);
+ return(FALSE);
+ }
+
+ /* fill stat block */
+
+ stat->attributes = _wapi_stat_to_file_attributes (utf8_name, &buf, &linkbuf);
+ stat->creation_time = (((guint64) (buf.st_mtime < buf.st_ctime ? buf.st_mtime : buf.st_ctime)) * 10 * 1000 * 1000) + 116444736000000000ULL;
+ stat->last_access_time = (((guint64) (buf.st_atime)) * 10 * 1000 * 1000) + 116444736000000000ULL;
+ stat->last_write_time = (((guint64) (buf.st_mtime)) * 10 * 1000 * 1000) + 116444736000000000ULL;
+ stat->length = (stat->attributes & FILE_ATTRIBUTE_DIRECTORY) ? 0 : buf.st_size;
+
+ g_free (utf8_name);
+ return TRUE;
+}
+
+gboolean
+mono_w32file_set_attributes (const gunichar2 *name, guint32 attrs)
+{
+ /* FIXME: think of something clever to do on unix */
+ gchar *utf8_name;
+ struct stat buf;
+ gint result;
+
+ /*
+ * Currently we only handle one *internal* case, with a value that is
+ * not standard: 0x80000000, which means `set executable bit'
+ */
+
+ if (name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: name is NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+
+ utf8_name = mono_unicode_to_external (name);
+ if (utf8_name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return FALSE;
+ }
+
+ result = _wapi_stat (utf8_name, &buf);
+ if (result == -1 && errno == ENOENT) {
+ /* Might be a dangling symlink... */
+ result = _wapi_lstat (utf8_name, &buf);
+ }
+
+ if (result != 0) {
+ _wapi_set_last_path_error_from_errno (NULL, utf8_name);
+ g_free (utf8_name);
+ return FALSE;
+ }
+
+ /* Contrary to the documentation, ms allows NORMAL to be
+ * specified along with other attributes, so dont bother to
+ * catch that case here.
+ */
+ if (attrs & FILE_ATTRIBUTE_READONLY) {
+ result = _wapi_chmod (utf8_name, buf.st_mode & ~(S_IWUSR | S_IWOTH | S_IWGRP));
+ } else {
+ result = _wapi_chmod (utf8_name, buf.st_mode | S_IWUSR);
+ }
+
+ /* Ignore the other attributes for now */
+
+ if (attrs & 0x80000000){
+ mode_t exec_mask = 0;
+
+ if ((buf.st_mode & S_IRUSR) != 0)
+ exec_mask |= S_IXUSR;
+
+ if ((buf.st_mode & S_IRGRP) != 0)
+ exec_mask |= S_IXGRP;
+
+ if ((buf.st_mode & S_IROTH) != 0)
+ exec_mask |= S_IXOTH;
+
+ result = chmod (utf8_name, buf.st_mode | exec_mask);
+ }
+ /* Don't bother to reset executable (might need to change this
+ * policy)
+ */
+
+ g_free (utf8_name);
+
+ return(TRUE);
+}
+
+guint32
+mono_w32file_get_cwd (guint32 length, gunichar2 *buffer)
+{
+ gunichar2 *utf16_path;
+ glong count;
+ gsize bytes;
+
+#ifdef __native_client__
+ gchar *path = g_get_current_dir ();
+ if (length < strlen(path) + 1 || path == NULL)
+ return 0;
+ memcpy (buffer, path, strlen(path) + 1);
+#else
+ if (getcwd ((gchar*)buffer, length) == NULL) {
+ if (errno == ERANGE) { /*buffer length is not big enough */
+ 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*/
+ if (path == NULL)
+ return 0;
+ utf16_path = mono_unicode_from_external (path, &bytes);
+ g_free (utf16_path);
+ g_free (path);
+ return (bytes/2)+1;
+ }
+ _wapi_set_last_error_from_errno ();
+ return 0;
+ }
+#endif
+
+ utf16_path = mono_unicode_from_external ((gchar*)buffer, &bytes);
+ count = (bytes/2)+1;
+ g_assert (count <= length); /*getcwd must have failed before with ERANGE*/
+
+ /* Add the terminator */
+ memset (buffer, '\0', bytes+2);
+ memcpy (buffer, utf16_path, bytes);
+
+ g_free (utf16_path);
+
+ return count;
+}
+
+gboolean
+mono_w32file_set_cwd (const gunichar2 *path)
+{
+ gchar *utf8_path;
+ gboolean result;
+
+ if (path == NULL) {
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return(FALSE);
+ }
+
+ utf8_path = mono_unicode_to_external (path);
+ if (_wapi_chdir (utf8_path) != 0) {
+ _wapi_set_last_error_from_errno ();
+ result = FALSE;
+ }
+ else
+ result = TRUE;
+
+ g_free (utf8_path);
+ return result;
+}
+
+gboolean
+mono_w32file_create_pipe (gpointer *readpipe, gpointer *writepipe, guint32 size)
+{
+ MonoW32HandleFile pipe_read_handle = {0};
+ MonoW32HandleFile pipe_write_handle = {0};
+ gpointer read_handle;
+ gpointer write_handle;
+ gint filedes[2];
+ gint ret;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Creating pipe", __func__);
+
+ ret=pipe (filedes);
+ if(ret==-1) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Error creating pipe: %s", __func__,
+ strerror (errno));
+
+ _wapi_set_last_error_from_errno ();
+ return(FALSE);
+ }
+
+ if (filedes[0] >= mono_w32handle_fd_reserve ||
+ filedes[1] >= mono_w32handle_fd_reserve) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: File descriptor is too big", __func__);
+
+ SetLastError (ERROR_TOO_MANY_OPEN_FILES);
+
+ close (filedes[0]);
+ close (filedes[1]);
+
+ return(FALSE);
+ }
+
+ /* filedes[0] is open for reading, filedes[1] for writing */
+
+ pipe_read_handle.fd = filedes [0];
+ pipe_read_handle.fileaccess = GENERIC_READ;
+ read_handle = mono_w32handle_new_fd (MONO_W32HANDLE_PIPE, filedes[0],
+ &pipe_read_handle);
+ if (read_handle == INVALID_HANDLE_VALUE) {
+ g_warning ("%s: error creating pipe read handle", __func__);
+ close (filedes[0]);
+ close (filedes[1]);
+ SetLastError (ERROR_GEN_FAILURE);
+
+ return(FALSE);
+ }
+
+ pipe_write_handle.fd = filedes [1];
+ pipe_write_handle.fileaccess = GENERIC_WRITE;
+ write_handle = mono_w32handle_new_fd (MONO_W32HANDLE_PIPE, filedes[1],
+ &pipe_write_handle);
+ if (write_handle == INVALID_HANDLE_VALUE) {
+ g_warning ("%s: error creating pipe write handle", __func__);
+ mono_w32handle_unref (read_handle);
+
+ close (filedes[0]);
+ close (filedes[1]);
+ SetLastError (ERROR_GEN_FAILURE);
+
+ return(FALSE);
+ }
+
+ *readpipe = read_handle;
+ *writepipe = write_handle;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Returning pipe: read handle %p, write handle %p",
+ __func__, read_handle, write_handle);
+
+ return(TRUE);
+}
+
+#ifdef HAVE_GETFSSTAT
+/* Darwin has getfsstat */
+gint32
+mono_w32file_get_logical_drive (guint32 len, gunichar2 *buf)
+{
+ struct statfs *stats;
+ gint size, n, i;
+ gunichar2 *dir;
+ glong length, total = 0;
+
+ n = getfsstat (NULL, 0, MNT_NOWAIT);
+ if (n == -1)
+ return 0;
+ size = n * sizeof (struct statfs);
+ stats = (struct statfs *) g_malloc (size);
+ if (stats == NULL)
+ return 0;
+ if (getfsstat (stats, size, MNT_NOWAIT) == -1){
+ g_free (stats);
+ return 0;
+ }
+ for (i = 0; i < n; i++){
+ dir = g_utf8_to_utf16 (stats [i].f_mntonname, -1, NULL, &length, NULL);
+ if (total + length < len){
+ memcpy (buf + total, dir, sizeof (gunichar2) * length);
+ buf [total+length] = 0;
+ }
+ g_free (dir);
+ total += length + 1;
+ }
+ if (total < len)
+ buf [total] = 0;
+ total++;
+ g_free (stats);
+ return total;
+}
+#else
+/* In-place octal sequence replacement */
+static void
+unescape_octal (gchar *str)
+{
+ gchar *rptr;
+ gchar *wptr;
+
+ if (str == NULL)
+ return;
+
+ rptr = wptr = str;
+ while (*rptr != '\0') {
+ if (*rptr == '\\') {
+ gchar c;
+ rptr++;
+ c = (*(rptr++) - '0') << 6;
+ c += (*(rptr++) - '0') << 3;
+ c += *(rptr++) - '0';
+ *wptr++ = c;
+ } else if (wptr != rptr) {
+ *wptr++ = *rptr++;
+ } else {
+ rptr++; wptr++;
+ }
+ }
+ *wptr = '\0';
+}
+static gint32 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf);
+
+#if __linux__
+#define GET_LOGICAL_DRIVE_STRINGS_BUFFER 512
+#define GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER 512
+#define GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER 64
+
+typedef struct
+{
+ glong total;
+ guint32 buffer_index;
+ guint32 mountpoint_index;
+ guint32 field_number;
+ guint32 allocated_size;
+ guint32 fsname_index;
+ guint32 fstype_index;
+ gchar mountpoint [GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER + 1];
+ gchar *mountpoint_allocated;
+ gchar buffer [GET_LOGICAL_DRIVE_STRINGS_BUFFER];
+ gchar fsname [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
+ gchar fstype [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
+ ssize_t nbytes;
+ gchar delimiter;
+ gboolean check_mount_source;
+} LinuxMountInfoParseState;
+
+static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
+static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
+static void append_to_mountpoint (LinuxMountInfoParseState *state);
+static gboolean add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
+
+gint32
+mono_w32file_get_logical_drive (guint32 len, gunichar2 *buf)
+{
+ gint fd;
+ gint32 ret = 0;
+ LinuxMountInfoParseState state;
+ gboolean (*parser)(guint32, gunichar2*, LinuxMountInfoParseState*) = NULL;
+
+ memset (buf, 0, len * sizeof (gunichar2));
+ fd = open ("/proc/self/mountinfo", O_RDONLY);
+ if (fd != -1)
+ parser = GetLogicalDriveStrings_MountInfo;
+ else {
+ fd = open ("/proc/mounts", O_RDONLY);
+ if (fd != -1)
+ parser = GetLogicalDriveStrings_Mounts;
+ }
+
+ if (!parser) {
+ ret = GetLogicalDriveStrings_Mtab (len, buf);
+ goto done_and_out;
+ }
+
+ memset (&state, 0, sizeof (LinuxMountInfoParseState));
+ state.field_number = 1;
+ state.delimiter = ' ';
+
+ while ((state.nbytes = read (fd, state.buffer, GET_LOGICAL_DRIVE_STRINGS_BUFFER)) > 0) {
+ state.buffer_index = 0;
+
+ while ((*parser)(len, buf, &state)) {
+ if (state.buffer [state.buffer_index] == '\n') {
+ gboolean quit = add_drive_string (len, buf, &state);
+ state.field_number = 1;
+ state.buffer_index++;
+ if (state.mountpoint_allocated) {
+ g_free (state.mountpoint_allocated);
+ state.mountpoint_allocated = NULL;
+ }
+ if (quit) {
+ ret = state.total;
+ goto done_and_out;
+ }
+ }
+ }
+ };
+ ret = state.total;
+
+ done_and_out:
+ if (fd != -1)
+ close (fd);
+ return ret;
+}
+
+static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
+{
+ gchar *ptr;
+
+ if (state->field_number == 1)
+ state->check_mount_source = TRUE;
+
+ while (state->buffer_index < (guint32)state->nbytes) {
+ if (state->buffer [state->buffer_index] == state->delimiter) {
+ state->field_number++;
+ switch (state->field_number) {
+ case 2:
+ state->mountpoint_index = 0;
+ break;
+
+ case 3:
+ if (state->mountpoint_allocated)
+ state->mountpoint_allocated [state->mountpoint_index] = 0;
+ else
+ state->mountpoint [state->mountpoint_index] = 0;
+ break;
+
+ default:
+ ptr = (gchar*)memchr (state->buffer + state->buffer_index, '\n', GET_LOGICAL_DRIVE_STRINGS_BUFFER - state->buffer_index);
+ if (ptr)
+ state->buffer_index = (ptr - (gchar*)state->buffer) - 1;
+ else
+ state->buffer_index = state->nbytes;
+ return TRUE;
+ }
+ state->buffer_index++;
+ continue;
+ } else if (state->buffer [state->buffer_index] == '\n')
+ return TRUE;
+
+ switch (state->field_number) {
+ case 1:
+ if (state->check_mount_source) {
+ if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
+ /* We can ignore the rest, it's a device
+ * path */
+ state->check_mount_source = FALSE;
+ state->fsname [state->fsname_index++] = '/';
+ break;
+ }
+ if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
+ state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
+ }
+ break;
+
+ case 2:
+ append_to_mountpoint (state);
+ break;
+
+ case 3:
+ if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
+ state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
+ break;
+ }
+
+ state->buffer_index++;
+ }
+
+ return FALSE;
+}
+
+static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
+{
+ while (state->buffer_index < (guint32)state->nbytes) {
+ if (state->buffer [state->buffer_index] == state->delimiter) {
+ state->field_number++;
+ switch (state->field_number) {
+ case 5:
+ state->mountpoint_index = 0;
+ break;
+
+ case 6:
+ if (state->mountpoint_allocated)
+ state->mountpoint_allocated [state->mountpoint_index] = 0;
+ else
+ state->mountpoint [state->mountpoint_index] = 0;
+ break;
+
+ case 7:
+ state->delimiter = '-';
+ break;
+
+ case 8:
+ state->delimiter = ' ';
+ break;
+
+ case 10:
+ state->check_mount_source = TRUE;
+ break;
+ }
+ state->buffer_index++;
+ continue;
+ } else if (state->buffer [state->buffer_index] == '\n')
+ return TRUE;
+
+ switch (state->field_number) {
+ case 5:
+ append_to_mountpoint (state);
+ break;
+
+ case 9:
+ if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
+ state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
+ break;
+
+ case 10:
+ if (state->check_mount_source) {
+ if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
+ /* We can ignore the rest, it's a device
+ * path */
+ state->check_mount_source = FALSE;
+ state->fsname [state->fsname_index++] = '/';
+ break;
+ }
+ if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
+ state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
+ }
+ break;
+ }
+
+ state->buffer_index++;
+ }
+
+ return FALSE;
+}
+
+static void
+append_to_mountpoint (LinuxMountInfoParseState *state)
+{
+ gchar ch = state->buffer [state->buffer_index];
+ if (state->mountpoint_allocated) {
+ if (state->mountpoint_index >= state->allocated_size) {
+ guint32 newsize = (state->allocated_size << 1) + 1;
+ gchar *newbuf = (gchar *)g_malloc0 (newsize * sizeof (gchar));
+
+ memcpy (newbuf, state->mountpoint_allocated, state->mountpoint_index);
+ g_free (state->mountpoint_allocated);
+ state->mountpoint_allocated = newbuf;
+ state->allocated_size = newsize;
+ }
+ state->mountpoint_allocated [state->mountpoint_index++] = ch;
+ } else {
+ if (state->mountpoint_index >= GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER) {
+ state->allocated_size = (state->mountpoint_index << 1) + 1;
+ state->mountpoint_allocated = (gchar *)g_malloc0 (state->allocated_size * sizeof (gchar));
+ memcpy (state->mountpoint_allocated, state->mountpoint, state->mountpoint_index);
+ state->mountpoint_allocated [state->mountpoint_index++] = ch;
+ } else
+ state->mountpoint [state->mountpoint_index++] = ch;
+ }
+}
+
+static gboolean
+add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
+{
+ gboolean quit = FALSE;
+ gboolean ignore_entry;
+
+ if (state->fsname_index == 1 && state->fsname [0] == '/')
+ ignore_entry = FALSE;
+ else if (memcmp ("overlay", state->fsname, state->fsname_index) == 0 ||
+ memcmp ("aufs", state->fstype, state->fstype_index) == 0) {
+ /* Don't ignore overlayfs and aufs - these might be used on Docker
+ * (https://bugzilla.xamarin.com/show_bug.cgi?id=31021) */
+ ignore_entry = FALSE;
+ } else if (state->fsname_index == 0 || memcmp ("none", state->fsname, state->fsname_index) == 0) {
+ ignore_entry = TRUE;
+ } else if (state->fstype_index >= 5 && memcmp ("fuse.", state->fstype, 5) == 0) {
+ /* Ignore GNOME's gvfs */
+ if (state->fstype_index == 21 && memcmp ("fuse.gvfs-fuse-daemon", state->fstype, state->fstype_index) == 0)
+ ignore_entry = TRUE;
+ else
+ ignore_entry = FALSE;
+ } else if (state->fstype_index == 3 && memcmp ("nfs", state->fstype, state->fstype_index) == 0)
+ ignore_entry = FALSE;
+ else
+ ignore_entry = TRUE;
+
+ if (!ignore_entry) {
+ gunichar2 *dir;
+ glong length;
+ gchar *mountpoint = state->mountpoint_allocated ? state->mountpoint_allocated : state->mountpoint;
+
+ unescape_octal (mountpoint);
+ dir = g_utf8_to_utf16 (mountpoint, -1, NULL, &length, NULL);
+ if (state->total + length + 1 > len) {
+ quit = TRUE;
+ state->total = len * 2;
+ } else {
+ length++;
+ memcpy (buf + state->total, dir, sizeof (gunichar2) * length);
+ state->total += length;
+ }
+ g_free (dir);
+ }
+ state->fsname_index = 0;
+ state->fstype_index = 0;
+
+ return quit;
+}
+#else
+gint32
+mono_w32file_get_logical_drive (guint32 len, gunichar2 *buf)
+{
+ return GetLogicalDriveStrings_Mtab (len, buf);
+}
+#endif
+static gint32
+GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf)
+{
+ FILE *fp;
+ gunichar2 *ptr, *dir;
+ glong length, total = 0;
+ gchar buffer [512];
+ gchar **splitted;
+
+ memset (buf, 0, sizeof (gunichar2) * (len + 1));
+ buf [0] = '/';
+ buf [1] = 0;
+ buf [2] = 0;
+
+ /* Sigh, mntent and friends don't work well.
+ * It stops on the first line that doesn't begin with a '/'.
+ * (linux 2.6.5, libc 2.3.2.ds1-12) - Gonz */
+ fp = fopen ("/etc/mtab", "rt");
+ if (fp == NULL) {
+ fp = fopen ("/etc/mnttab", "rt");
+ if (fp == NULL)
+ return 1;
+ }
+
+ ptr = buf;
+ while (fgets (buffer, 512, fp) != NULL) {
+ if (*buffer != '/')
+ continue;
+
+ splitted = g_strsplit (buffer, " ", 0);
+ if (!*splitted || !*(splitted + 1)) {
+ g_strfreev (splitted);
+ continue;
+ }
+
+ unescape_octal (*(splitted + 1));
+ dir = g_utf8_to_utf16 (*(splitted + 1), -1, NULL, &length, NULL);
+ g_strfreev (splitted);
+ if (total + length + 1 > len) {
+ fclose (fp);
+ g_free (dir);
+ return len * 2; /* guess */
+ }
+
+ memcpy (ptr + total, dir, sizeof (gunichar2) * length);
+ g_free (dir);
+ total += length + 1;
+ }
+
+ fclose (fp);
+ return total;
+/* Commented out, does not work with my mtab!!! - Gonz */
+#ifdef NOTENABLED /* HAVE_MNTENT_H */
+{
+ FILE *fp;
+ struct mntent *mnt;
+ gunichar2 *ptr, *dir;
+ glong len, total = 0;
+
+
+ fp = setmntent ("/etc/mtab", "rt");
+ if (fp == NULL) {
+ fp = setmntent ("/etc/mnttab", "rt");
+ if (fp == NULL)
+ return;
+ }
+
+ ptr = buf;
+ while ((mnt = getmntent (fp)) != NULL) {
+ g_print ("GOT %s\n", mnt->mnt_dir);
+ dir = g_utf8_to_utf16 (mnt->mnt_dir, &len, NULL, NULL, NULL);
+ if (total + len + 1 > len) {
+ return len * 2; /* guess */
+ }
+
+ memcpy (ptr + total, dir, sizeof (gunichar2) * len);
+ g_free (dir);
+ total += len + 1;
+ }
+
+ endmntent (fp);
+ return total;
+}
+#endif
+}
+#endif
+
+#if defined(HAVE_STATVFS) || defined(HAVE_STATFS)
+gboolean
+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)
+{
+#ifdef HAVE_STATVFS
+ struct statvfs fsstat;
+#elif defined(HAVE_STATFS)
+ struct statfs fsstat;
+#endif
+ gboolean isreadonly;
+ gchar *utf8_path_name;
+ gint ret;
+ unsigned long block_size;
+
+ if (path_name == NULL) {
+ utf8_path_name = g_strdup (g_get_current_dir());
+ if (utf8_path_name == NULL) {
+ SetLastError (ERROR_DIRECTORY);
+ return(FALSE);
+ }
+ }
+ else {
+ utf8_path_name = mono_unicode_to_external (path_name);
+ if (utf8_path_name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+
+ SetLastError (ERROR_INVALID_NAME);
+ return(FALSE);
+ }
+ }
+
+ do {
+#ifdef HAVE_STATVFS
+ ret = statvfs (utf8_path_name, &fsstat);
+ isreadonly = ((fsstat.f_flag & ST_RDONLY) == ST_RDONLY);
+ block_size = fsstat.f_frsize;
+#elif defined(HAVE_STATFS)
+ ret = statfs (utf8_path_name, &fsstat);
+#if defined (MNT_RDONLY)
+ isreadonly = ((fsstat.f_flags & MNT_RDONLY) == MNT_RDONLY);
+#elif defined (MS_RDONLY)
+ isreadonly = ((fsstat.f_flags & MS_RDONLY) == MS_RDONLY);
+#endif
+ block_size = fsstat.f_bsize;
+#endif
+ } while(ret == -1 && errno == EINTR);
+
+ g_free(utf8_path_name);
+
+ if (ret == -1) {
+ _wapi_set_last_error_from_errno ();
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: statvfs failed: %s", __func__, strerror (errno));
+ return(FALSE);
+ }
+
+ /* total number of free bytes for non-root */
+ if (free_bytes_avail != NULL) {
+ if (isreadonly) {
+ *free_bytes_avail = 0;
+ }
+ else {
+ *free_bytes_avail = block_size * (guint64)fsstat.f_bavail;
+ }
+ }
+
+ /* total number of bytes available for non-root */
+ if (total_number_of_bytes != NULL) {
+ *total_number_of_bytes = block_size * (guint64)fsstat.f_blocks;
+ }
+
+ /* total number of bytes available for root */
+ if (total_number_of_free_bytes != NULL) {
+ if (isreadonly) {
+ *total_number_of_free_bytes = 0;
+ }
+ else {
+ *total_number_of_free_bytes = block_size * (guint64)fsstat.f_bfree;
+ }
+ }
+
+ return(TRUE);
+}
+#else
+gboolean
+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)
+{
+ if (free_bytes_avail != NULL) {
+ *free_bytes_avail = (guint64) -1;
+ }
+
+ if (total_number_of_bytes != NULL) {
+ *total_number_of_bytes = (guint64) -1;
+ }
+
+ if (total_number_of_free_bytes != NULL) {
+ *total_number_of_free_bytes = (guint64) -1;
+ }
+
+ return(TRUE);
+}
+#endif
+
+/*
+ * General Unix support
+ */
+typedef struct {
+ guint32 drive_type;
+#if __linux__
+ const long fstypeid;
+#endif
+ const gchar* fstype;
+} _wapi_drive_type;
+
+static _wapi_drive_type _wapi_drive_types[] = {
+#if PLATFORM_MACOSX
+ { DRIVE_REMOTE, "afp" },
+ { DRIVE_REMOTE, "autofs" },
+ { DRIVE_CDROM, "cddafs" },
+ { DRIVE_CDROM, "cd9660" },
+ { DRIVE_RAMDISK, "devfs" },
+ { DRIVE_FIXED, "exfat" },
+ { DRIVE_RAMDISK, "fdesc" },
+ { DRIVE_REMOTE, "ftp" },
+ { DRIVE_FIXED, "hfs" },
+ { DRIVE_FIXED, "msdos" },
+ { DRIVE_REMOTE, "nfs" },
+ { DRIVE_FIXED, "ntfs" },
+ { DRIVE_REMOTE, "smbfs" },
+ { DRIVE_FIXED, "udf" },
+ { DRIVE_REMOTE, "webdav" },
+ { DRIVE_UNKNOWN, NULL }
+#elif __linux__
+ { DRIVE_FIXED, ADFS_SUPER_MAGIC, "adfs"},
+ { DRIVE_FIXED, AFFS_SUPER_MAGIC, "affs"},
+ { DRIVE_REMOTE, AFS_SUPER_MAGIC, "afs"},
+ { DRIVE_RAMDISK, AUTOFS_SUPER_MAGIC, "autofs"},
+ { DRIVE_RAMDISK, AUTOFS_SBI_MAGIC, "autofs4"},
+ { DRIVE_REMOTE, CODA_SUPER_MAGIC, "coda" },
+ { DRIVE_RAMDISK, CRAMFS_MAGIC, "cramfs"},
+ { DRIVE_RAMDISK, CRAMFS_MAGIC_WEND, "cramfs"},
+ { DRIVE_REMOTE, CIFS_MAGIC_NUMBER, "cifs"},
+ { DRIVE_RAMDISK, DEBUGFS_MAGIC, "debugfs"},
+ { DRIVE_RAMDISK, SYSFS_MAGIC, "sysfs"},
+ { DRIVE_RAMDISK, SECURITYFS_MAGIC, "securityfs"},
+ { DRIVE_RAMDISK, SELINUX_MAGIC, "selinuxfs"},
+ { DRIVE_RAMDISK, RAMFS_MAGIC, "ramfs"},
+ { DRIVE_FIXED, SQUASHFS_MAGIC, "squashfs"},
+ { DRIVE_FIXED, EFS_SUPER_MAGIC, "efs"},
+ { DRIVE_FIXED, EXT2_SUPER_MAGIC, "ext"},
+ { DRIVE_FIXED, EXT3_SUPER_MAGIC, "ext"},
+ { DRIVE_FIXED, EXT4_SUPER_MAGIC, "ext"},
+ { DRIVE_REMOTE, XENFS_SUPER_MAGIC, "xenfs"},
+ { DRIVE_FIXED, BTRFS_SUPER_MAGIC, "btrfs"},
+ { DRIVE_FIXED, HFS_SUPER_MAGIC, "hfs"},
+ { DRIVE_FIXED, HFSPLUS_SUPER_MAGIC, "hfsplus"},
+ { DRIVE_FIXED, HPFS_SUPER_MAGIC, "hpfs"},
+ { DRIVE_RAMDISK, HUGETLBFS_MAGIC, "hugetlbfs"},
+ { DRIVE_CDROM, ISOFS_SUPER_MAGIC, "iso"},
+ { DRIVE_FIXED, JFFS2_SUPER_MAGIC, "jffs2"},
+ { DRIVE_RAMDISK, ANON_INODE_FS_MAGIC, "anon_inode"},
+ { DRIVE_FIXED, JFS_SUPER_MAGIC, "jfs"},
+ { DRIVE_FIXED, MINIX_SUPER_MAGIC, "minix"},
+ { DRIVE_FIXED, MINIX_SUPER_MAGIC2, "minix v2"},
+ { DRIVE_FIXED, MINIX2_SUPER_MAGIC, "minix2"},
+ { DRIVE_FIXED, MINIX2_SUPER_MAGIC2, "minix2 v2"},
+ { DRIVE_FIXED, MINIX3_SUPER_MAGIC, "minix3"},
+ { DRIVE_FIXED, MSDOS_SUPER_MAGIC, "msdos"},
+ { DRIVE_REMOTE, NCP_SUPER_MAGIC, "ncp"},
+ { DRIVE_REMOTE, NFS_SUPER_MAGIC, "nfs"},
+ { DRIVE_FIXED, NTFS_SB_MAGIC, "ntfs"},
+ { DRIVE_RAMDISK, OPENPROM_SUPER_MAGIC, "openpromfs"},
+ { DRIVE_RAMDISK, PROC_SUPER_MAGIC, "proc"},
+ { DRIVE_FIXED, QNX4_SUPER_MAGIC, "qnx4"},
+ { DRIVE_FIXED, REISERFS_SUPER_MAGIC, "reiserfs"},
+ { DRIVE_RAMDISK, ROMFS_MAGIC, "romfs"},
+ { DRIVE_REMOTE, SMB_SUPER_MAGIC, "samba"},
+ { DRIVE_RAMDISK, CGROUP_SUPER_MAGIC, "cgroupfs"},
+ { DRIVE_RAMDISK, FUTEXFS_SUPER_MAGIC, "futexfs"},
+ { DRIVE_FIXED, SYSV2_SUPER_MAGIC, "sysv2"},
+ { DRIVE_FIXED, SYSV4_SUPER_MAGIC, "sysv4"},
+ { DRIVE_RAMDISK, TMPFS_MAGIC, "tmpfs"},
+ { DRIVE_RAMDISK, DEVPTS_SUPER_MAGIC, "devpts"},
+ { DRIVE_CDROM, UDF_SUPER_MAGIC, "udf"},
+ { DRIVE_FIXED, UFS_MAGIC, "ufs"},
+ { DRIVE_FIXED, UFS_MAGIC_BW, "ufs"},
+ { DRIVE_FIXED, UFS2_MAGIC, "ufs2"},
+ { DRIVE_FIXED, UFS_CIGAM, "ufs"},
+ { DRIVE_RAMDISK, USBDEVICE_SUPER_MAGIC, "usbdev"},
+ { DRIVE_FIXED, XENIX_SUPER_MAGIC, "xenix"},
+ { DRIVE_FIXED, XFS_SB_MAGIC, "xfs"},
+ { DRIVE_RAMDISK, FUSE_SUPER_MAGIC, "fuse"},
+ { DRIVE_FIXED, V9FS_MAGIC, "9p"},
+ { DRIVE_REMOTE, CEPH_SUPER_MAGIC, "ceph"},
+ { DRIVE_RAMDISK, CONFIGFS_MAGIC, "configfs"},
+ { DRIVE_RAMDISK, ECRYPTFS_SUPER_MAGIC, "eCryptfs"},
+ { DRIVE_FIXED, EXOFS_SUPER_MAGIC, "exofs"},
+ { DRIVE_FIXED, VXFS_SUPER_MAGIC, "vxfs"},
+ { DRIVE_FIXED, VXFS_OLT_MAGIC, "vxfs_olt"},
+ { DRIVE_REMOTE, GFS2_MAGIC, "gfs2"},
+ { DRIVE_FIXED, LOGFS_MAGIC_U32, "logfs"},
+ { DRIVE_FIXED, OCFS2_SUPER_MAGIC, "ocfs2"},
+ { DRIVE_FIXED, OMFS_MAGIC, "omfs"},
+ { DRIVE_FIXED, UBIFS_SUPER_MAGIC, "ubifs"},
+ { DRIVE_UNKNOWN, 0, NULL}
+#else
+ { DRIVE_RAMDISK, "ramfs" },
+ { DRIVE_RAMDISK, "tmpfs" },
+ { DRIVE_RAMDISK, "proc" },
+ { DRIVE_RAMDISK, "sysfs" },
+ { DRIVE_RAMDISK, "debugfs" },
+ { DRIVE_RAMDISK, "devpts" },
+ { DRIVE_RAMDISK, "securityfs" },
+ { DRIVE_CDROM, "iso9660" },
+ { DRIVE_FIXED, "ext2" },
+ { DRIVE_FIXED, "ext3" },
+ { DRIVE_FIXED, "ext4" },
+ { DRIVE_FIXED, "sysv" },
+ { DRIVE_FIXED, "reiserfs" },
+ { DRIVE_FIXED, "ufs" },
+ { DRIVE_FIXED, "vfat" },
+ { DRIVE_FIXED, "msdos" },
+ { DRIVE_FIXED, "udf" },
+ { DRIVE_FIXED, "hfs" },
+ { DRIVE_FIXED, "hpfs" },
+ { DRIVE_FIXED, "qnx4" },
+ { DRIVE_FIXED, "ntfs" },
+ { DRIVE_FIXED, "ntfs-3g" },
+ { DRIVE_REMOTE, "smbfs" },
+ { DRIVE_REMOTE, "fuse" },
+ { DRIVE_REMOTE, "nfs" },
+ { DRIVE_REMOTE, "nfs4" },
+ { DRIVE_REMOTE, "cifs" },
+ { DRIVE_REMOTE, "ncpfs" },
+ { DRIVE_REMOTE, "coda" },
+ { DRIVE_REMOTE, "afs" },
+ { DRIVE_UNKNOWN, NULL }
+#endif
+};
+
+#if __linux__
+static guint32 _wapi_get_drive_type(long f_type)
+{
+ _wapi_drive_type *current;
+
+ current = &_wapi_drive_types[0];
+ while (current->drive_type != DRIVE_UNKNOWN) {
+ if (current->fstypeid == f_type)
+ return current->drive_type;
+ current++;
+ }
+
+ return DRIVE_UNKNOWN;
+}
+#else
+static guint32 _wapi_get_drive_type(const gchar* fstype)
+{
+ _wapi_drive_type *current;
+
+ current = &_wapi_drive_types[0];
+ while (current->drive_type != DRIVE_UNKNOWN) {
+ if (strcmp (current->fstype, fstype) == 0)
+ break;
+
+ current++;
+ }
+
+ return current->drive_type;
+}
+#endif
+
+#if defined (PLATFORM_MACOSX) || defined (__linux__)
+static guint32
+GetDriveTypeFromPath (const gchar *utf8_root_path_name)
+{
+ struct statfs buf;
+
+ if (statfs (utf8_root_path_name, &buf) == -1)
+ return DRIVE_UNKNOWN;
+#if PLATFORM_MACOSX
+ return _wapi_get_drive_type (buf.f_fstypename);
+#else
+ return _wapi_get_drive_type (buf.f_type);
+#endif
+}
+#else
+static guint32
+GetDriveTypeFromPath (const gchar *utf8_root_path_name)
+{
+ guint32 drive_type;
+ FILE *fp;
+ gchar buffer [512];
+ gchar **splitted;
+
+ fp = fopen ("/etc/mtab", "rt");
+ if (fp == NULL) {
+ fp = fopen ("/etc/mnttab", "rt");
+ if (fp == NULL)
+ return(DRIVE_UNKNOWN);
+ }
+
+ drive_type = DRIVE_NO_ROOT_DIR;
+ while (fgets (buffer, 512, fp) != NULL) {
+ splitted = g_strsplit (buffer, " ", 0);
+ if (!*splitted || !*(splitted + 1) || !*(splitted + 2)) {
+ g_strfreev (splitted);
+ continue;
+ }
+
+ /* compare given root_path_name with the one from mtab,
+ if length of utf8_root_path_name is zero it must be the root dir */
+ if (strcmp (*(splitted + 1), utf8_root_path_name) == 0 ||
+ (strcmp (*(splitted + 1), "/") == 0 && strlen (utf8_root_path_name) == 0)) {
+ drive_type = _wapi_get_drive_type (*(splitted + 2));
+ /* it is possible this path might be mounted again with
+ a known type...keep looking */
+ if (drive_type != DRIVE_UNKNOWN) {
+ g_strfreev (splitted);
+ break;
+ }
+ }
+
+ g_strfreev (splitted);
+ }
+
+ fclose (fp);
+ return drive_type;
+}
+#endif
+
+guint32
+mono_w32file_get_drive_type(const gunichar2 *root_path_name)
+{
+ gchar *utf8_root_path_name;
+ guint32 drive_type;
+
+ if (root_path_name == NULL) {
+ utf8_root_path_name = g_strdup (g_get_current_dir());
+ if (utf8_root_path_name == NULL) {
+ return(DRIVE_NO_ROOT_DIR);
+ }
+ }
+ else {
+ utf8_root_path_name = mono_unicode_to_external (root_path_name);
+ if (utf8_root_path_name == NULL) {
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: unicode conversion returned NULL", __func__);
+ return(DRIVE_NO_ROOT_DIR);
+ }
+
+ /* strip trailing slash for compare below */
+ if (g_str_has_suffix(utf8_root_path_name, "/") && utf8_root_path_name [1] != 0) {
+ utf8_root_path_name[strlen(utf8_root_path_name) - 1] = 0;
+ }
+ }
+ drive_type = GetDriveTypeFromPath (utf8_root_path_name);
+ g_free (utf8_root_path_name);
+
+ return (drive_type);
+}
+
+#if defined (PLATFORM_MACOSX) || defined (__linux__) || defined(PLATFORM_BSD) || defined(__native_client__) || defined(__FreeBSD_kernel__)
+static gchar*
+get_fstypename (gchar *utfpath)
+{
+#if defined (PLATFORM_MACOSX) || defined (__linux__)
+ struct statfs stat;
+#if __linux__
+ _wapi_drive_type *current;
+#endif
+ if (statfs (utfpath, &stat) == -1)
+ return NULL;
+#if PLATFORM_MACOSX
+ return g_strdup (stat.f_fstypename);
+#else
+ current = &_wapi_drive_types[0];
+ while (current->drive_type != DRIVE_UNKNOWN) {
+ if (stat.f_type == current->fstypeid)
+ return g_strdup (current->fstype);
+ current++;
+ }
+ return NULL;
+#endif
+#else
+ return NULL;
+#endif
+}
+
+/* Linux has struct statfs which has a different layout */
+gboolean
+mono_w32file_get_volume_information (const gunichar2 *path, gunichar2 *volumename, gint volumesize, gint *outserial, gint *maxcomp, gint *fsflags, gunichar2 *fsbuffer, gint fsbuffersize)
+{
+ gchar *utfpath;
+ gchar *fstypename;
+ gboolean status = FALSE;
+ glong len;
+
+ // We only support getting the file system type
+ if (fsbuffer == NULL)
+ return 0;
+
+ utfpath = mono_unicode_to_external (path);
+ if ((fstypename = get_fstypename (utfpath)) != NULL){
+ gunichar2 *ret = g_utf8_to_utf16 (fstypename, -1, NULL, &len, NULL);
+ if (ret != NULL && len < fsbuffersize){
+ memcpy (fsbuffer, ret, len * sizeof (gunichar2));
+ fsbuffer [len] = 0;
+ status = TRUE;
+ }
+ if (ret != NULL)
+ g_free (ret);
+ g_free (fstypename);
+ }
+ g_free (utfpath);
+ return status;
+}
+#endif
+
+static gboolean
+LockFile (gpointer handle, guint32 offset_low, guint32 offset_high, guint32 length_low, guint32 length_high)
+{
+ MonoW32HandleFile *file_handle;
+ off_t offset, length;
+
+ if (!mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE, (gpointer *)&file_handle)) {
+ g_warning ("%s: error looking up file handle %p", __func__, handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return FALSE;
+ }
+
+ if (!(file_handle->fileaccess & GENERIC_READ) && !(file_handle->fileaccess & GENERIC_WRITE) && !(file_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+ SetLastError (ERROR_ACCESS_DENIED);
+ return FALSE;
+ }
+
+#ifdef HAVE_LARGE_FILE_SUPPORT
+ offset = ((gint64)offset_high << 32) | offset_low;
+ length = ((gint64)length_high << 32) | length_low;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Locking handle %p, offset %lld, length %lld", __func__, handle, offset, length);
+#else
+ if (offset_high > 0 || length_high > 0) {
+ SetLastError (ERROR_INVALID_PARAMETER);
+ return FALSE;
+ }
+ offset = offset_low;
+ length = length_low;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Locking handle %p, offset %ld, length %ld", __func__, handle, offset, length);
+#endif
+
+ return _wapi_lock_file_region (GPOINTER_TO_UINT(handle), offset, length);
+}
+
+static gboolean
+UnlockFile (gpointer handle, guint32 offset_low, guint32 offset_high, guint32 length_low, guint32 length_high)
+{
+ MonoW32HandleFile *file_handle;
+ off_t offset, length;
+
+ if (!mono_w32handle_lookup (handle, MONO_W32HANDLE_FILE, (gpointer *)&file_handle)) {
+ g_warning ("%s: error looking up file handle %p", __func__, handle);
+ SetLastError (ERROR_INVALID_HANDLE);
+ return FALSE;
+ }
+
+ if (!(file_handle->fileaccess & GENERIC_READ) && !(file_handle->fileaccess & GENERIC_WRITE) && !(file_handle->fileaccess & GENERIC_ALL)) {
+ 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);
+ SetLastError (ERROR_ACCESS_DENIED);
+ return FALSE;
+ }
+
+#ifdef HAVE_LARGE_FILE_SUPPORT
+ offset = ((gint64)offset_high << 32) | offset_low;
+ length = ((gint64)length_high << 32) | length_low;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unlocking handle %p, offset %lld, length %lld", __func__, handle, offset, length);
+#else
+ offset = offset_low;
+ length = length_low;
+
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER, "%s: Unlocking handle %p, offset %ld, length %ld", __func__, handle, offset, length);
+#endif
+
+ return _wapi_unlock_file_region (GPOINTER_TO_UINT(handle), offset, length);
+}
+
+void
+mono_w32file_init (void)
+{
+ mono_os_mutex_init (&stdhandle_mutex);
+ mono_os_mutex_init (&file_share_mutex);
+
+ mono_w32handle_register_ops (MONO_W32HANDLE_FILE, &_wapi_file_ops);
+ mono_w32handle_register_ops (MONO_W32HANDLE_CONSOLE, &_wapi_console_ops);
+ mono_w32handle_register_ops (MONO_W32HANDLE_FIND, &_wapi_find_ops);
+ mono_w32handle_register_ops (MONO_W32HANDLE_PIPE, &_wapi_pipe_ops);
+
+/* mono_w32handle_register_capabilities (MONO_W32HANDLE_FILE, */
+/* MONO_W32HANDLE_CAP_WAIT); */
+/* mono_w32handle_register_capabilities (MONO_W32HANDLE_CONSOLE, */
+/* MONO_W32HANDLE_CAP_WAIT); */
+
+ if (g_getenv ("MONO_STRICT_IO_EMULATION"))
+ lock_while_writing = TRUE;
+}
+
+void
+mono_w32file_cleanup (void)
+{
+ mono_os_mutex_destroy (&file_share_mutex);
+
+ if (file_share_table)
+ g_hash_table_destroy (file_share_table);
+}
+
+gboolean
+mono_w32file_move (gunichar2 *path, gunichar2 *dest, gint32 *error)
+{
+ gboolean result;
+
+ MONO_ENTER_GC_SAFE;
+
+ result = MoveFile (path, dest);
+ if (!result)
+ *error = GetLastError ();
+
+ MONO_EXIT_GC_SAFE;
+
+ return result;
+}
+
+gboolean
+mono_w32file_copy (gunichar2 *path, gunichar2 *dest, gboolean overwrite, gint32 *error)
+{
+ gboolean result;
+
+ MONO_ENTER_GC_SAFE;
+
+ result = CopyFile (path, dest, !overwrite);
+ if (!result)
+ *error = GetLastError ();
+
+ MONO_EXIT_GC_SAFE;
+
+ return result;
+}
+
+gboolean
+mono_w32file_replace (gunichar2 *destinationFileName, gunichar2 *sourceFileName, gunichar2 *destinationBackupFileName, guint32 flags, gint32 *error)
+{
+ gboolean result;
+
+ MONO_ENTER_GC_SAFE;
+
+ result = ReplaceFile (destinationFileName, sourceFileName, destinationBackupFileName, flags, NULL, NULL);
+ if (!result)
+ *error = GetLastError ();
+
+ MONO_EXIT_GC_SAFE;
+
+ return result;
+}
+
+gint64
+mono_w32file_get_file_size (gpointer handle, gint32 *error)
+{
+ gint64 length;
+ guint32 length_hi;
+
+ MONO_ENTER_GC_SAFE;
+
+ length = GetFileSize (handle, &length_hi);
+ if(length==INVALID_FILE_SIZE) {
+ *error=GetLastError ();
+ }
+
+ MONO_EXIT_GC_SAFE;
+
+ return length | ((gint64)length_hi << 32);
+}
+
+gboolean
+mono_w32file_lock (gpointer handle, gint64 position, gint64 length, gint32 *error)
+{
+ gboolean result;
+
+ MONO_ENTER_GC_SAFE;
+
+ result = LockFile (handle, position & 0xFFFFFFFF, position >> 32, length & 0xFFFFFFFF, length >> 32);
+ if (!result)
+ *error = GetLastError ();
+
+ MONO_EXIT_GC_SAFE;
+
+ return result;
+}
+
+gboolean
+mono_w32file_unlock (gpointer handle, gint64 position, gint64 length, gint32 *error)
+{
+ gboolean result;
+
+ MONO_ENTER_GC_SAFE;
+
+ result = UnlockFile (handle, position & 0xFFFFFFFF, position >> 32, length & 0xFFFFFFFF, length >> 32);
+ if (!result)
+ *error = GetLastError ();
+
+ MONO_EXIT_GC_SAFE;
+
+ return result;
+}
+
+gpointer
+mono_w32file_get_console_input (void)
+{
+ gpointer handle;
+
+ MONO_ENTER_GC_SAFE;
+ handle = mono_w32file_get_std_handle (STD_INPUT_HANDLE);
+ MONO_EXIT_GC_SAFE;
+
+ return handle;
+}
+
+gpointer
+mono_w32file_get_console_output (void)
+{
+ gpointer handle;
+
+ MONO_ENTER_GC_SAFE;
+ handle = mono_w32file_get_std_handle (STD_OUTPUT_HANDLE);
+ MONO_EXIT_GC_SAFE;
+
+ return handle;
+}
+
+gpointer
+mono_w32file_get_console_error (void)
+{
+ gpointer handle;
+
+ MONO_ENTER_GC_SAFE;
+ handle = mono_w32file_get_std_handle (STD_ERROR_HANDLE);
+ MONO_EXIT_GC_SAFE;
+
+ return handle;
+}