int sd_bus_get_owner(sd_bus *bus, const char *name, char **owner);
int sd_bus_get_owner_uid(sd_bus *bus, const char *name, uid_t *uid);
int sd_bus_get_owner_pid(sd_bus *bus, const char *name, pid_t *pid);
int sd_bus_get_owner(sd_bus *bus, const char *name, char **owner);
int sd_bus_get_owner_uid(sd_bus *bus, const char *name, uid_t *uid);
int sd_bus_get_owner_pid(sd_bus *bus, const char *name, pid_t *pid);