Save a disk file's drive type in the server object.
diff --git a/server/object.h b/server/object.h
index 8455720..32fa346 100644
--- a/server/object.h
+++ b/server/object.h
@@ -145,6 +145,7 @@
extern struct file *get_file_obj( struct process *process, handle_t handle,
unsigned int access );
extern int is_same_file( struct file *file1, struct file *file2 );
+extern int get_file_drive_type( struct file *file );
extern int grow_file( struct file *file, int size_high, int size_low );
extern int create_anonymous_file(void);
extern struct file *create_temp_file( int access );