void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t);
void dual_timestamp_deserialize(const char *value, dual_timestamp *t);
char *fstab_node_to_udev_node(const char *p);
void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t);
void dual_timestamp_deserialize(const char *value, dual_timestamp *t);
char *fstab_node_to_udev_node(const char *p);