extern int guestfs_drop_caches (guestfs_h *handle, int whattodrop);
extern char *guestfs_dmesg (guestfs_h *handle);
extern int guestfs_ping_daemon (guestfs_h *handle);
extern int guestfs_drop_caches (guestfs_h *handle, int whattodrop);
extern char *guestfs_dmesg (guestfs_h *handle);
extern int guestfs_ping_daemon (guestfs_h *handle);