int sd_bus_open_system_container(sd_bus **ret, const char *machine);
int sd_bus_new(sd_bus **ret);
int sd_bus_open_system_container(sd_bus **ret, const char *machine);
int sd_bus_new(sd_bus **ret);
int sd_bus_set_address(sd_bus *bus, const char *address);
int sd_bus_set_fd(sd_bus *bus, int input_fd, int output_fd);
int sd_bus_set_exec(sd_bus *bus, const char *path, char *const argv[]);
int sd_bus_set_address(sd_bus *bus, const char *address);
int sd_bus_set_fd(sd_bus *bus, int input_fd, int output_fd);
int sd_bus_set_exec(sd_bus *bus, const char *path, char *const argv[]);
int sd_bus_negotiate_timestamp(sd_bus *bus, int b);
int sd_bus_negotiate_creds(sd_bus *bus, int b, uint64_t creds_mask);
int sd_bus_negotiate_timestamp(sd_bus *bus, int b);
int sd_bus_negotiate_creds(sd_bus *bus, int b, uint64_t creds_mask);
int sd_bus_send(sd_bus *bus, sd_bus_message *m, uint64_t *cookie);
int sd_bus_send_to(sd_bus *bus, sd_bus_message *m, const char *destination, uint64_t *cookie);
int sd_bus_send(sd_bus *bus, sd_bus_message *m, uint64_t *cookie);
int sd_bus_send_to(sd_bus *bus, sd_bus_message *m, const char *destination, uint64_t *cookie);