239                 _cleanup_close_pair_ int pair[2] = { -1, -1 };  in bus_machine_method_get_addresses()  local
261                 if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0)  in bus_machine_method_get_addresses()
273                         pair[0] = safe_close(pair[0]);  in bus_machine_method_get_addresses()
285                                 r = writev(pair[1], iov, 2);  in bus_machine_method_get_addresses()
290                         pair[1] = safe_close(pair[1]);  in bus_machine_method_get_addresses()
295                 pair[1] = safe_close(pair[1]);  in bus_machine_method_get_addresses()
310                         n = recvmsg(pair[0], &mh, 0);  in bus_machine_method_get_addresses()
388                 _cleanup_close_pair_ int pair[2] = { -1, -1 };  in bus_machine_method_get_os_release()  local
396                 if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0)  in bus_machine_method_get_os_release()
407                         pair[0] = safe_close(pair[0]);  in bus_machine_method_get_os_release()
415                         r = copy_bytes(fd, pair[1], UINT64_MAX, 0);  in bus_machine_method_get_os_release()
422                 pair[1] = safe_close(pair[1]);  in bus_machine_method_get_os_release()
424                 f = take_fdopen(&pair[0], "r");  in bus_machine_method_get_os_release()
1092                 _cleanup_close_pair_ int pair[2] = { -1, -1 };  in bus_machine_method_open_root_directory()  local
1099                 if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0)  in bus_machine_method_open_root_directory()
1109                         pair[0] = safe_close(pair[0]);  in bus_machine_method_open_root_directory()
1115                         r = send_one_fd(pair[1], dfd, 0);  in bus_machine_method_open_root_directory()
1123                 pair[1] = safe_close(pair[1]);  in bus_machine_method_open_root_directory()
1131                 fd = receive_one_fd(pair[0], MSG_DONTWAIT);  in bus_machine_method_open_root_directory()