+extern char *guestfs_file (guestfs_h *handle, const char *path);
+extern char *guestfs_command (guestfs_h *handle, char * const* const arguments);
+extern char **guestfs_command_lines (guestfs_h *handle, char * const* const arguments);
+extern struct guestfs_stat *guestfs_stat (guestfs_h *handle, const char *path);
+extern struct guestfs_stat *guestfs_lstat (guestfs_h *handle, const char *path);
+extern struct guestfs_statvfs *guestfs_statvfs (guestfs_h *handle, const char *path);
+extern char **guestfs_tune2fs_l (guestfs_h *handle, const char *device);
+extern int guestfs_blockdev_setro (guestfs_h *handle, const char *device);
+extern int guestfs_blockdev_setrw (guestfs_h *handle, const char *device);
+extern int guestfs_blockdev_getro (guestfs_h *handle, const char *device);
+extern int guestfs_blockdev_getss (guestfs_h *handle, const char *device);
+extern int guestfs_blockdev_getbsz (guestfs_h *handle, const char *device);
+extern int guestfs_blockdev_setbsz (guestfs_h *handle, const char *device, int blocksize);
+extern int64_t guestfs_blockdev_getsz (guestfs_h *handle, const char *device);
+extern int64_t guestfs_blockdev_getsize64 (guestfs_h *handle, const char *device);
+extern int guestfs_blockdev_flushbufs (guestfs_h *handle, const char *device);
+extern int guestfs_blockdev_rereadpt (guestfs_h *handle, const char *device);
+extern int guestfs_upload (guestfs_h *handle, const char *filename, const char *remotefilename);
+extern int guestfs_download (guestfs_h *handle, const char *remotefilename, const char *filename);