int sd_bus_creds_get_pid(sd_bus_creds *c, pid_t *pid);
int sd_bus_creds_get_pid_starttime(sd_bus_creds *c, uint64_t *usec);
int sd_bus_creds_get_tid(sd_bus_creds *c, pid_t *tid);
int sd_bus_creds_get_uid(sd_bus_creds *c, uid_t *uid);
int sd_bus_creds_get_gid(sd_bus_creds *c, gid_t *gid);
int sd_bus_creds_get_pid(sd_bus_creds *c, pid_t *pid);
int sd_bus_creds_get_pid_starttime(sd_bus_creds *c, uint64_t *usec);
int sd_bus_creds_get_tid(sd_bus_creds *c, pid_t *tid);
int sd_bus_creds_get_uid(sd_bus_creds *c, uid_t *uid);
int sd_bus_creds_get_gid(sd_bus_creds *c, gid_t *gid);