C++ (Cpp) udev_builtin_exit Examples

Example #1

File: udevadm-test-builtin.c Project: htejun/systemd

int builtin_main(int argc, char *argv[], void *userdata) {
        _cleanup_(sd_device_unrefp) sd_device *dev = NULL;
        enum udev_builtin_cmd cmd;
        int r;

        log_set_max_level(LOG_DEBUG);

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

        udev_builtin_init();

        cmd = udev_builtin_lookup(arg_command);
        if (cmd < 0) {
                log_error("Unknown command '%s'", arg_command);
                r = -EINVAL;
                goto finish;
        }

        r = find_device(arg_syspath, "/sys", &dev);
        if (r < 0) {
                log_error_errno(r, "Failed to open device '%s': %m", arg_syspath);
                goto finish;
        }

        r = udev_builtin_run(dev, cmd, arg_command, true);
        if (r < 0)
                log_debug_errno(r, "Builtin command '%s' fails: %m", arg_command);

finish:
        udev_builtin_exit();
        return r;
}

Example #2

File: udevadm-test-builtin.c Project: AlexBaranosky/systemd

static int adm_builtin(struct udev *udev, int argc, char *argv[]) {
        static const struct option options[] = {
                { "help", no_argument, NULL, 'h' },
                {}
        };
        char *command = NULL;
        char *syspath = NULL;
        char filename[UTIL_PATH_SIZE];
        struct udev_device *dev = NULL;
        enum udev_builtin_cmd cmd;
        int rc = EXIT_SUCCESS, c;

        while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
                switch (c) {
                case 'h':
                        help(udev);
                        goto out;
                }

        command = argv[optind++];
        if (command == NULL) {
                fprintf(stderr, "command missing\n");
                help(udev);
                rc = 2;
                goto out;
        }

        syspath = argv[optind++];
        if (syspath == NULL) {
                fprintf(stderr, "syspath missing\n");
                rc = 3;
                goto out;
        }

        udev_builtin_init(udev);

        cmd = udev_builtin_lookup(command);
        if (cmd >= UDEV_BUILTIN_MAX) {
                fprintf(stderr, "unknown command '%s'\n", command);
                help(udev);
                rc = 5;
                goto out;
        }

        /* add /sys if needed */
        if (!startswith(syspath, "/sys"))
                strscpyl(filename, sizeof(filename), "/sys", syspath, NULL);
        else
                strscpy(filename, sizeof(filename), syspath);
        util_remove_trailing_chars(filename, '/');

        dev = udev_device_new_from_syspath(udev, filename);
        if (dev == NULL) {
                fprintf(stderr, "unable to open device '%s'\n\n", filename);
                rc = 4;
                goto out;
        }

        rc = udev_builtin_run(dev, cmd, command, true);
        if (rc < 0) {
                fprintf(stderr, "error executing '%s', exit code %i\n\n", command, rc);
                rc = 6;
        }
out:
        udev_device_unref(dev);
        udev_builtin_exit(udev);
        return rc;
}