Ejemplo n.º 1
0
static PyObject* booted(PyObject *self, PyObject *args) {
        int r;
        assert(args == NULL);

        r = sd_booted();
        if (set_error(r, NULL, NULL) < 0)
                return NULL;

        return PyBool_FromLong(r);
}
Ejemplo n.º 2
0
TEST_END_CASE

int main(int argc, char **argv)
{
	if (sd_booted() <= 0)
		return 77;

	return test_run_suite(TEST_SUITE(edbus,
					 TEST_CASE(verify),
					 TEST_END));
}
Ejemplo n.º 3
0
static bool
check_systemd_running ()
{
  struct stat c;

  /* We simply test whether the systemd cgroup hierarchy is
   * mounted, as well as the systemd-ask-password executable
   * being available */

  return (sd_booted() > 0)
	  && (stat(SYSTEMD_ASK_PASSWORD_PATH, &c) == 0);

}
Ejemplo n.º 4
0
/**
 * shell_session_is_active_for_systemd:
 *
 * Checks whether the session we are running in is currently active,
 * i.e. in the foreground and ready for user input.
 *
 * Returns: TRUE if session is active
 */
gboolean
shell_session_is_active_for_systemd (void)
{
  /* If this isn't systemd, let's assume the session is active. */

#ifdef WITH_SYSTEMD
  if (sd_booted () <= 0)
    return TRUE;

  return sd_session_is_active (NULL) != 0;
#else
  return TRUE;
#endif
}
Ejemplo n.º 5
0
void
_dbus_init_system_log (void)
{
#ifdef HAVE_SYSLOG_H
  int logopts = LOG_PID;

#ifdef HAVE_DECL_LOG_PERROR
#ifdef HAVE_SYSTEMD
  if (sd_booted () <= 0)
#endif
    logopts |= LOG_PERROR;
#endif

  openlog ("dbus", logopts, LOG_DAEMON);
#endif
}
Ejemplo n.º 6
0
int main(int argc, char *argv[]) {
        sd_id128_t id, id2;
        char t[33];
        _cleanup_free_ char *b = NULL;

        assert_se(sd_id128_randomize(&id) == 0);
        printf("random: %s\n", sd_id128_to_string(id, t));

        assert_se(sd_id128_from_string(t, &id2) == 0);
        assert_se(sd_id128_equal(id, id2));

        if (sd_booted() > 0) {
                assert_se(sd_id128_get_machine(&id) == 0);
                printf("machine: %s\n", sd_id128_to_string(id, t));

                assert_se(sd_id128_get_boot(&id) == 0);
                printf("boot: %s\n", sd_id128_to_string(id, t));
        }

        printf("waldi: %s\n", sd_id128_to_string(ID128_WALDI, t));
        assert_se(streq(t, STR_WALDI));

        assert_se(asprintf(&b, SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(ID128_WALDI)) == 32);
        printf("waldi2: %s\n", b);
        assert_se(streq(t, b));

        assert_se(sd_id128_from_string(UUID_WALDI, &id) >= 0);
        assert_se(sd_id128_equal(id, ID128_WALDI));

        assert_se(sd_id128_from_string("", &id) < 0);
        assert_se(sd_id128_from_string("01020304-0506-0708-090a-0b0c0d0e0f101", &id) < 0);
        assert_se(sd_id128_from_string("01020304-0506-0708-090a-0b0c0d0e0f10-", &id) < 0);
        assert_se(sd_id128_from_string("01020304-0506-0708-090a0b0c0d0e0f10", &id) < 0);
        assert_se(sd_id128_from_string("010203040506-0708-090a-0b0c0d0e0f10", &id) < 0);

        assert_se(id128_is_valid(STR_WALDI));
        assert_se(id128_is_valid(UUID_WALDI));
        assert_se(!id128_is_valid(""));
        assert_se(!id128_is_valid("01020304-0506-0708-090a-0b0c0d0e0f101"));
        assert_se(!id128_is_valid("01020304-0506-0708-090a-0b0c0d0e0f10-"));
        assert_se(!id128_is_valid("01020304-0506-0708-090a0b0c0d0e0f10"));
        assert_se(!id128_is_valid("010203040506-0708-090a-0b0c0d0e0f10"));

        return 0;
}
Ejemplo n.º 7
0
XzeroDaemon::XzeroDaemon(int argc, char *argv[]) :
    state_(XzeroState::Inactive),
    argc_(argc),
    argv_(argv),
    showGreeter_(false),
    configfile_(pathcat(SYSCONFDIR, "x0d.conf")),
    pidfile_(),
    user_(),
    group_(),
    logTarget_("file"),
    logFile_(pathcat(LOGDIR, "x0d.log")),
    logLevel_(Severity::info),
    instant_(),
    documentRoot_(),
    nofork_(false),
    systemd_(getppid() == 1 && sd_booted()),
    doguard_(false),
    dumpIR_(false),
    optimizationLevel_(2),
    server_(nullptr),
    evFlags_(0),
    eventHandler_(nullptr),
    pluginDirectory_(PLUGINDIR),
    plugins_(),
    pluginLibraries_(),
    core_(nullptr),
    components_(),
    unit_(nullptr),
    runner_(nullptr),
    setupApi_(),
    mainApi_()
{
    x0::FlowRunner::initialize();

    runner_ = new FlowRunner(this);
    runner_->setErrorHandler(std::bind(&wrap_log_error, this, "codegen", std::placeholders::_1));

    instance_ = this;
}
Ejemplo n.º 8
0
XzeroDaemon::XzeroDaemon(int argc, char *argv[]) :
	state_(XzeroState::Inactive),
	argc_(argc),
	argv_(argv),
	showGreeter_(false),
	configfile_(pathcat(SYSCONFDIR, "x0d.conf")),
	pidfile_(),
	user_(),
	group_(),
	logTarget_("file"),
	logFile_(pathcat(LOGDIR, "x0d.log")),
	logLevel_(Severity::info),
	instant_(),
	documentRoot_(),
	nofork_(false),
	systemd_(getppid() == 1 && sd_booted()),
	doguard_(false),
    dumpAST_(false),
	dumpIR_(false),
    dumpTargetCode_(false),
	optimizationLevel_(1),
	server_(nullptr),
	evFlags_(0),
	eventHandler_(nullptr),
	pluginDirectory_(PLUGINDIR),
	plugins_(),
	pluginLibraries_(),
	core_(nullptr),
	components_(),
	unit_(),
	program_(),
    main_(nullptr),
	setupApi_(),
	mainApi_()
{
    TRACE(2, "initializing");
	instance_ = this;
}
Ejemplo n.º 9
0
Archivo: logger.c Proyecto: alisw/uuid
/*
 * logger -- read and log utility
 *
 *	Reads from an input and arranges to write the result on the system
 *	log.
 */
int main(int argc, char **argv)
{
	struct logger_ctl ctl = {
		.fd = -1,
		.pid = 0,
		.pri = LOG_USER | LOG_NOTICE,
		.prio_prefix = 0,
		.tag = NULL,
		.unix_socket = NULL,
		.unix_socket_errors = 0,
		.server = NULL,
		.port = NULL,
		.hdr = NULL,
		.msgid = NULL,
		.socket_type = ALL_TYPES,
		.max_message_size = 1024,
		.rfc5424_time = 1,
		.rfc5424_tq = 1,
		.rfc5424_host = 1,
		.skip_empty_lines = 0
	};
	int ch;
	int stdout_reopened = 0;
	int unix_socket_errors_mode = AF_UNIX_ERRORS_AUTO;
#ifdef HAVE_LIBSYSTEMD
	FILE *jfd = NULL;
#endif
	static const struct option longopts[] = {
		{ "id",		   optional_argument, 0, OPT_ID		   },
		{ "stderr",	   no_argument,	      0, 's'		   },
		{ "file",	   required_argument, 0, 'f'		   },
		{ "no-act",        no_argument,       0, OPT_NOACT,	   },
		{ "priority",	   required_argument, 0, 'p'		   },
		{ "tag",	   required_argument, 0, 't'		   },
		{ "socket",	   required_argument, 0, 'u'		   },
		{ "socket-errors", required_argument, 0, OPT_SOCKET_ERRORS },
		{ "udp",	   no_argument,	      0, 'd'		   },
		{ "tcp",	   no_argument,	      0, 'T'		   },
		{ "server",	   required_argument, 0, 'n'		   },
		{ "port",	   required_argument, 0, 'P'		   },
		{ "version",	   no_argument,	      0, 'V'		   },
		{ "help",	   no_argument,	      0, 'h'		   },
		{ "octet-count",   no_argument,	      0, OPT_OCTET_COUNT   },
		{ "prio-prefix",   no_argument,	      0, OPT_PRIO_PREFIX   },
		{ "rfc3164",	   no_argument,	      0, OPT_RFC3164	   },
		{ "rfc5424",	   optional_argument, 0, OPT_RFC5424	   },
		{ "size",	   required_argument, 0, 'S'		   },
		{ "msgid",	   required_argument, 0, OPT_MSGID	   },
		{ "skip-empty",	   no_argument,	      0, 'e'		   },
#ifdef HAVE_LIBSYSTEMD
		{ "journald",	   optional_argument, 0, OPT_JOURNALD	   },
#endif
		{ NULL,		   0,		      0, 0		   }
	};

	setlocale(LC_ALL, "");
	bindtextdomain(PACKAGE, LOCALEDIR);
	textdomain(PACKAGE);
	atexit(close_stdout);

	while ((ch = getopt_long(argc, argv, "ef:ip:S:st:u:dTn:P:Vh",
					    longopts, NULL)) != -1) {
		switch (ch) {
		case 'f':		/* file to log */
			if (freopen(optarg, "r", stdin) == NULL)
				err(EXIT_FAILURE, _("file %s"), optarg);
			stdout_reopened = 1;
			break;
		case 'e':
			ctl.skip_empty_lines = 1;
			break;
		case 'i':		/* log process id also */
			ctl.pid = logger_getpid();
			break;
		case OPT_ID:
			if (optarg) {
				const char *p = optarg;

				if (*p == '=')
					p++;
				ctl.pid = strtoul_or_err(optarg, _("failed to parse id"));
			} else
				ctl.pid = logger_getpid();
			break;
		case 'p':		/* priority */
			ctl.pri = pencode(optarg);
			break;
		case 's':		/* log to standard error */
			ctl.stderr_printout = 1;
			break;
		case 't':		/* tag */
			ctl.tag = optarg;
			break;
		case 'u':		/* unix socket */
			ctl.unix_socket = optarg;
			break;
		case 'S':		/* max message size */
			ctl.max_message_size = strtosize_or_err(optarg,
				_("failed to parse message size"));
			break;
		case 'd':
			ctl.socket_type = TYPE_UDP;
			break;
		case 'T':
			ctl.socket_type = TYPE_TCP;
			break;
		case 'n':
			ctl.server = optarg;
			break;
		case 'P':
			ctl.port = optarg;
			break;
		case 'V':
			printf(UTIL_LINUX_VERSION);
			exit(EXIT_SUCCESS);
		case 'h':
			usage(stdout);
		case OPT_OCTET_COUNT:
			ctl.octet_count = 1;
			break;
		case OPT_PRIO_PREFIX:
			ctl.prio_prefix = 1;
			break;
		case OPT_RFC3164:
			ctl.syslogfp = syslog_rfc3164_header;
			break;
		case OPT_RFC5424:
			ctl.syslogfp = syslog_rfc5424_header;
			if (optarg)
				parse_rfc5424_flags(&ctl, optarg);
			break;
		case OPT_MSGID:
			if (strchr(optarg, ' '))
				errx(EXIT_FAILURE, _("--msgid cannot contain space"));
			ctl.msgid = optarg;
			break;
#ifdef HAVE_LIBSYSTEMD
		case OPT_JOURNALD:
			if (optarg) {
				jfd = fopen(optarg, "r");
				if (!jfd)
					err(EXIT_FAILURE, _("cannot open %s"),
					    optarg);
			} else
				jfd = stdin;
			break;
#endif
		case OPT_SOCKET_ERRORS:
			unix_socket_errors_mode = parse_unix_socket_errors_flags(optarg);
			break;
		case OPT_NOACT:
			ctl.noact = 1;
			break;
		case '?':
		default:
			usage(stderr);
		}
	}
	argc -= optind;
	argv += optind;
	if (stdout_reopened && argc)
		warnx(_("--file <file> and <message> are mutually exclusive, message is ignored"));
#ifdef HAVE_LIBSYSTEMD
	if (jfd) {
		int ret = journald_entry(&ctl, jfd);
		if (stdin != jfd)
			fclose(jfd);
		if (ret)
			errx(EXIT_FAILURE, _("journald entry could not be written"));
		return EXIT_SUCCESS;
	}
#endif
	switch (unix_socket_errors_mode) {
	case AF_UNIX_ERRORS_OFF:
		ctl.unix_socket_errors = 0;
		break;
	case AF_UNIX_ERRORS_ON:
		ctl.unix_socket_errors = 1;
		break;
	case AF_UNIX_ERRORS_AUTO:
		ctl.unix_socket_errors = ctl.noact || ctl.stderr_printout;
#ifdef HAVE_LIBSYSTEMD
		ctl.unix_socket_errors |= !!sd_booted();
#endif
		break;
	default:
		abort();
	}
	logger_open(&ctl);
	if (0 < argc)
		logger_command_line(&ctl, argv);
	else
		/* Note. --file <arg> reopens stdin making the below
		 * function to be used for file inputs. */
		logger_stdin(&ctl);
	logger_close(&ctl);
	return EXIT_SUCCESS;
}
/*
 * Class:     org_linjian_sd_daemon_java_NativeUtil
 * Method:    sd_booted
 * Signature: ()I
 */
JNIEXPORT jint JNICALL Java_org_linjian_sd_1daemon_1java_NativeUtil_sd_1booted
  (JNIEnv *env, jclass cls)
{
	return (jint)sd_booted();
}
Ejemplo n.º 11
0
int main(int argc, char* argv[]) {
    _cleanup_free_ char *status = NULL, *cpid = NULL, *n = NULL;
    _cleanup_strv_free_ char **final_env = NULL;
    char* our_env[4];
    unsigned i = 0;
    int r;

    log_parse_environment();
    log_open();

    r = parse_argv(argc, argv);
    if (r <= 0)
        goto finish;

    if (arg_booted)
        return sd_booted() <= 0;

    if (arg_ready)
        our_env[i++] = (char*) "READY=1";

    if (arg_status) {
        status = strappend("STATUS=", arg_status);
        if (!status) {
            r = log_oom();
            goto finish;
        }

        our_env[i++] = status;
    }

    if (arg_pid > 0) {
        if (asprintf(&cpid, "MAINPID="PID_FMT, arg_pid) < 0) {
            r = log_oom();
            goto finish;
        }

        our_env[i++] = cpid;
    }

    our_env[i++] = NULL;

    final_env = strv_env_merge(2, our_env, argv + optind);
    if (!final_env) {
        r = log_oom();
        goto finish;
    }

    if (strv_length(final_env) <= 0) {
        r = 0;
        goto finish;
    }

    n = strv_join(final_env, "\n");
    if (!n) {
        r = log_oom();
        goto finish;
    }

    r = sd_pid_notify(arg_pid ? arg_pid : getppid(), false, n);
    if (r < 0) {
        log_error_errno(r, "Failed to notify init system: %m");
        goto finish;
    } else if (r == 0) {
        log_error("No status data could be sent: $NOTIFY_SOCKET was not set");
        r = -EOPNOTSUPP;
    }

finish:
    return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
Ejemplo n.º 12
0
int main(int argc, char* argv[]) {
        char* our_env[4], **final_env = NULL;
        unsigned i = 0;
        char *status = NULL, *cpid = NULL, *n = NULL;
        int r, retval = EXIT_FAILURE;

        log_parse_environment();
        log_open();

        r = parse_argv(argc, argv);
        if (r <= 0) {
                retval = r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
                goto finish;
        }

        if (arg_booted)
                return sd_booted() <= 0;

        if (arg_readahead) {
                if ((r = sd_readahead(arg_readahead)) < 0) {
                        log_error("Failed to issue read-ahead control command: %s", strerror(-r));
                        goto finish;
                }
        }

        if (arg_ready)
                our_env[i++] = (char*) "READY=1";

        if (arg_status) {
                if (!(status = strappend("STATUS=", arg_status))) {
                        log_error("Failed to allocate STATUS string.");
                        goto finish;
                }

                our_env[i++] = status;
        }

        if (arg_pid > 0) {
                if (asprintf(&cpid, "MAINPID=%lu", (unsigned long) arg_pid) < 0) {
                        log_error("Failed to allocate MAINPID string.");
                        goto finish;
                }

                our_env[i++] = cpid;
        }

        our_env[i++] = NULL;

        if (!(final_env = strv_env_merge(2, our_env, argv + optind))) {
                log_error("Failed to merge string sets.");
                goto finish;
        }

        if (strv_length(final_env) <= 0) {
                retval = EXIT_SUCCESS;
                goto finish;
        }

        if (!(n = strv_join(final_env, "\n"))) {
                log_error("Failed to concatenate strings.");
                goto finish;
        }

        if ((r = sd_notify(false, n)) < 0) {
                log_error("Failed to notify init system: %s", strerror(-r));
                goto finish;
        }

        retval = r <= 0 ? EXIT_FAILURE : EXIT_SUCCESS;

finish:
        free(status);
        free(cpid);
        free(n);

        strv_free(final_env);

        return retval;
}
Ejemplo n.º 13
0
int main(int argc, char* argv[]) {
        _cleanup_free_ char *status = NULL, *cpid = NULL, *n = NULL;
        _cleanup_strv_free_ char **final_env = NULL;
        char* our_env[4];
        unsigned i = 0;
        int r;

        log_parse_environment();
        log_open();

        r = parse_argv(argc, argv);
        if (r <= 0)
                goto finish;

        if (arg_booted)
                return sd_booted() <= 0;

        if (arg_readahead) {
                r = sd_readahead(arg_readahead);
                if (r < 0) {
                        log_error("Failed to issue read-ahead control command: %s", strerror(-r));
                        goto finish;
                }
        }

        if (arg_ready)
                our_env[i++] = (char*) "READY=1";

        if (arg_status) {
                status = strappend("STATUS=", arg_status);
                if (!status) {
                        r = log_oom();
                        goto finish;
                }

                our_env[i++] = status;
        }

        if (arg_pid > 0) {
                if (asprintf(&cpid, "MAINPID="PID_FMT, arg_pid) < 0) {
                        r = log_oom();
                        goto finish;
                }

                our_env[i++] = cpid;
        }

        our_env[i++] = NULL;

        final_env = strv_env_merge(2, our_env, argv + optind);
        if (!final_env) {
                r = log_oom();
                goto finish;
        }

        if (strv_length(final_env) <= 0) {
                r = 0;
                goto finish;
        }

        n = strv_join(final_env, "\n");
        if (!n) {
                r = log_oom();
                goto finish;
        }

        r = sd_pid_notify(arg_pid, false, n);
        if (r < 0) {
                log_error_errno(r, "Failed to notify init system: %m");
                goto finish;
        }

        if (r == 0)
                r = -ENOTSUP;

finish:
        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
Ejemplo n.º 14
0
int main(int argc, char *argv[]) {
        sd_id128_t id, id2;
        char t[33], q[37];
        _cleanup_free_ char *b = NULL;
        _cleanup_close_ int fd = -1;

        assert_se(sd_id128_randomize(&id) == 0);
        printf("random: %s\n", sd_id128_to_string(id, t));

        assert_se(sd_id128_from_string(t, &id2) == 0);
        assert_se(sd_id128_equal(id, id2));

        if (sd_booted() > 0) {
                assert_se(sd_id128_get_machine(&id) == 0);
                printf("machine: %s\n", sd_id128_to_string(id, t));

                assert_se(sd_id128_get_boot(&id) == 0);
                printf("boot: %s\n", sd_id128_to_string(id, t));
        }

        printf("waldi: %s\n", sd_id128_to_string(ID128_WALDI, t));
        assert_se(streq(t, STR_WALDI));

        assert_se(asprintf(&b, SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(ID128_WALDI)) == 32);
        printf("waldi2: %s\n", b);
        assert_se(streq(t, b));

        printf("waldi3: %s\n", id128_to_uuid_string(ID128_WALDI, q));
        assert_se(streq(q, UUID_WALDI));

        b = mfree(b);
        assert_se(asprintf(&b, ID128_UUID_FORMAT_STR, SD_ID128_FORMAT_VAL(ID128_WALDI)) == 36);
        printf("waldi4: %s\n", b);
        assert_se(streq(q, b));

        assert_se(sd_id128_from_string(STR_WALDI, &id) >= 0);
        assert_se(sd_id128_equal(id, ID128_WALDI));

        assert_se(sd_id128_from_string(UUID_WALDI, &id) >= 0);
        assert_se(sd_id128_equal(id, ID128_WALDI));

        assert_se(sd_id128_from_string("", &id) < 0);
        assert_se(sd_id128_from_string("01020304-0506-0708-090a-0b0c0d0e0f101", &id) < 0);
        assert_se(sd_id128_from_string("01020304-0506-0708-090a-0b0c0d0e0f10-", &id) < 0);
        assert_se(sd_id128_from_string("01020304-0506-0708-090a0b0c0d0e0f10", &id) < 0);
        assert_se(sd_id128_from_string("010203040506-0708-090a-0b0c0d0e0f10", &id) < 0);

        assert_se(id128_is_valid(STR_WALDI));
        assert_se(id128_is_valid(UUID_WALDI));
        assert_se(!id128_is_valid(""));
        assert_se(!id128_is_valid("01020304-0506-0708-090a-0b0c0d0e0f101"));
        assert_se(!id128_is_valid("01020304-0506-0708-090a-0b0c0d0e0f10-"));
        assert_se(!id128_is_valid("01020304-0506-0708-090a0b0c0d0e0f10"));
        assert_se(!id128_is_valid("010203040506-0708-090a-0b0c0d0e0f10"));

        fd = open_tmpfile_unlinkable(NULL, O_RDWR|O_CLOEXEC);
        assert_se(fd >= 0);

        /* First, write as UUID */
        assert_se(sd_id128_randomize(&id) >= 0);
        assert_se(id128_write_fd(fd, ID128_UUID, id, false) >= 0);

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_PLAIN, &id2) == -EINVAL);

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_UUID, &id2) >= 0);
        assert_se(sd_id128_equal(id, id2));

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_ANY, &id2) >= 0);
        assert_se(sd_id128_equal(id, id2));

        /* Second, write as plain */
        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(ftruncate(fd, 0) >= 0);

        assert_se(sd_id128_randomize(&id) >= 0);
        assert_se(id128_write_fd(fd, ID128_PLAIN, id, false) >= 0);

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_UUID, &id2) == -EINVAL);

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_PLAIN, &id2) >= 0);
        assert_se(sd_id128_equal(id, id2));

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_ANY, &id2) >= 0);
        assert_se(sd_id128_equal(id, id2));

        /* Third, write plain without trailing newline */
        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(ftruncate(fd, 0) >= 0);

        assert_se(sd_id128_randomize(&id) >= 0);
        assert_se(write(fd, sd_id128_to_string(id, t), 32) == 32);

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_UUID, &id2) == -EINVAL);

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_PLAIN, &id2) >= 0);
        assert_se(sd_id128_equal(id, id2));

        /* Third, write UUID without trailing newline */
        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(ftruncate(fd, 0) >= 0);

        assert_se(sd_id128_randomize(&id) >= 0);
        assert_se(write(fd, id128_to_uuid_string(id, q), 36) == 36);

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_PLAIN, &id2) == -EINVAL);

        assert_se(lseek(fd, 0, SEEK_SET) == 0);
        assert_se(id128_read_fd(fd, ID128_UUID, &id2) >= 0);
        assert_se(sd_id128_equal(id, id2));

        return 0;
}