+ r = parse_pid(argv[1], &pid);
+ if (r < 0)
+ r = sd_bus_get_owner(bus, argv[1], _SD_BUS_CREDS_ALL, &creds);
+ else
+ r = sd_bus_creds_new_from_pid(pid, _SD_BUS_CREDS_ALL, &creds);
+
+ if (r < 0) {
+ log_error("Failed to get credentials: %s", strerror(-r));
+ return r;
+ }
+
+ bus_creds_dump(creds, NULL);
+ return 0;
+}
+
+static int help(void) {
+
+ printf("%s [OPTIONS...] {COMMAND} ...\n\n"
+ "Introspect the bus.\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --no-pager Do not pipe output into a pager\n"
+ " --system Connect to system bus\n"
+ " --user Connect to user bus\n"
+ " -H --host=[USER@]HOST Operate on remote host\n"
+ " -M --machine=CONTAINER Operate on local container\n"
+ " --address=ADDRESS Connect to bus specified by address\n"
+ " --no-unique Only show well-known names\n"
+ " --no-machine Don't show machine ID column in list\n"
+ " --match=MATCH Only show matching messages\n\n"
+ "Commands:\n"
+ " list List bus names\n"
+ " monitor [SERVICE...] Show bus traffic\n"
+ " status ENDPOINT Show endpoint status\n"
+ " help Show this help\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_NO_PAGER,
+ ARG_SYSTEM,
+ ARG_USER,
+ ARG_ADDRESS,
+ ARG_MATCH,
+ ARG_NO_UNIQUE,
+ ARG_NO_MACHINE,
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "no-pager", no_argument, NULL, ARG_NO_PAGER },
+ { "system", no_argument, NULL, ARG_SYSTEM },
+ { "user", no_argument, NULL, ARG_USER },
+ { "address", required_argument, NULL, ARG_ADDRESS },
+ { "no-unique", no_argument, NULL, ARG_NO_UNIQUE },
+ { "no-machine", no_argument, NULL, ARG_NO_MACHINE },
+ { "match", required_argument, NULL, ARG_MATCH },
+ { "host", required_argument, NULL, 'H' },
+ { "machine", required_argument, NULL, 'M' },
+ {},
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ return help();
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
+ case ARG_NO_PAGER:
+ arg_no_pager = true;
+ break;
+
+ case ARG_USER:
+ arg_user = true;
+ break;
+
+ case ARG_SYSTEM:
+ arg_user = false;
+ break;
+
+ case ARG_ADDRESS:
+ arg_address = optarg;
+ break;
+
+ case ARG_NO_UNIQUE:
+ arg_no_unique = true;
+ break;
+
+ case ARG_NO_MACHINE:
+ arg_no_machine = true;
+ break;
+
+ case ARG_MATCH:
+ if (strv_extend(&arg_matches, optarg) < 0)
+ return log_oom();
+ break;
+
+ case 'H':
+ arg_transport = BUS_TRANSPORT_REMOTE;
+ arg_host = optarg;
+ break;
+
+ case 'M':
+ arg_transport = BUS_TRANSPORT_CONTAINER;
+ arg_host = optarg;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ assert_not_reached("Unhandled option");
+ }
+ }
+
+ return 1;
+}
+
+static int busctl_main(sd_bus *bus, int argc, char *argv[]) {
+ assert(bus);
+
+ if (optind >= argc ||
+ streq(argv[optind], "list"))
+ return list_bus_names(bus, argv + optind);
+
+ if (streq(argv[optind], "monitor"))
+ return monitor(bus, argv + optind);
+
+ if (streq(argv[optind], "status"))
+ return status(bus, argv + optind);
+
+ if (streq(argv[optind], "help"))
+ return help();
+
+ log_error("Unknown command '%s'", argv[optind]);
+ return -EINVAL;
+}
+
+int main(int argc, char *argv[]) {
+ _cleanup_bus_unref_ sd_bus *bus = NULL;
+ int r;
+
+ log_parse_environment();
+ log_open();
+
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ goto finish;
+
+ if (arg_address) {
+ r = sd_bus_new(&bus);
+ if (r < 0) {
+ log_error("Failed to allocate bus: %s", strerror(-r));
+ goto finish;
+ }
+
+ r = sd_bus_set_address(bus, arg_address);
+ if (r < 0) {
+ log_error("Failed to set address: %s", strerror(-r));
+ goto finish;
+ }
+
+ r = sd_bus_set_bus_client(bus, true);
+ if (r < 0) {
+ log_error("Failed to set bus client: %s", strerror(-r));
+ goto finish;
+ }
+
+ r = sd_bus_start(bus);
+ } else
+ r = bus_open_transport(arg_transport, arg_host, arg_user, &bus);
+
+ if (r < 0) {
+ log_error("Failed to connect to bus: %s", strerror(-r));
+ goto finish;
+ }
+
+ r = busctl_main(bus, argc, argv);
+
+finish:
+ pager_close();
+
+ strv_free(arg_matches);