This function returns a string, or NULL on error.
The string is owned by the guest handle and must I<not> be freed.
+=head2 guestfs_get_state
+
+ int guestfs_get_state (guestfs_h *handle);
+
+This returns the current state as an opaque integer. This is
+only useful for printing debug and internal error messages.
+
+For more information on states, see L<guestfs(3)>.
+
+On error this function returns -1.
+
=head2 guestfs_get_verbose
int guestfs_get_verbose (guestfs_h *handle);
This function returns a C truth value on success or -1 on error.
+=head2 guestfs_is_busy
+
+ int guestfs_is_busy (guestfs_h *handle);
+
+This returns true iff this handle is busy processing a command
+(in the C<BUSY> state).
+
+For more information on states, see L<guestfs(3)>.
+
+This function returns a C truth value on success or -1 on error.
+
+=head2 guestfs_is_config
+
+ int guestfs_is_config (guestfs_h *handle);
+
+This returns true iff this handle is being configured
+(in the C<CONFIG> state).
+
+For more information on states, see L<guestfs(3)>.
+
+This function returns a C truth value on success or -1 on error.
+
=head2 guestfs_is_dir
int guestfs_is_dir (guestfs_h *handle,
This function returns a C truth value on success or -1 on error.
+=head2 guestfs_is_launching
+
+ int guestfs_is_launching (guestfs_h *handle);
+
+This returns true iff this handle is launching the subprocess
+(in the C<LAUNCHING> state).
+
+For more information on states, see L<guestfs(3)>.
+
+This function returns a C truth value on success or -1 on error.
+
+=head2 guestfs_is_ready
+
+ int guestfs_is_ready (guestfs_h *handle);
+
+This returns true iff this handle is ready to accept commands
+(in the C<READY> state).
+
+For more information on states, see L<guestfs(3)>.
+
+This function returns a C truth value on success or -1 on error.
+
=head2 guestfs_kill_subprocess
int guestfs_kill_subprocess (guestfs_h *handle);