summaryrefslogtreecommitdiffstats
path: root/src/hostname/hostnamectl.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/hostname/hostnamectl.c
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/hostname/hostnamectl.c')
-rw-r--r--src/hostname/hostnamectl.c740
1 files changed, 740 insertions, 0 deletions
diff --git a/src/hostname/hostnamectl.c b/src/hostname/hostnamectl.c
new file mode 100644
index 0000000..14fc160
--- /dev/null
+++ b/src/hostname/hostnamectl.c
@@ -0,0 +1,740 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <getopt.h>
+#include <locale.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "sd-bus.h"
+#include "sd-id128.h"
+
+#include "alloc-util.h"
+#include "architecture.h"
+#include "build.h"
+#include "bus-common-errors.h"
+#include "bus-error.h"
+#include "bus-locator.h"
+#include "bus-map-properties.h"
+#include "format-table.h"
+#include "hostname-setup.h"
+#include "hostname-util.h"
+#include "json.h"
+#include "main-func.h"
+#include "parse-argument.h"
+#include "pretty-print.h"
+#include "spawn-polkit-agent.h"
+#include "terminal-util.h"
+#include "verbs.h"
+
+static bool arg_ask_password = true;
+static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
+static char *arg_host = NULL;
+static bool arg_transient = false;
+static bool arg_pretty = false;
+static bool arg_static = false;
+static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF;
+
+typedef struct StatusInfo {
+ const char *hostname;
+ const char *static_hostname;
+ const char *pretty_hostname;
+ const char *icon_name;
+ const char *chassis;
+ const char *deployment;
+ const char *location;
+ const char *kernel_name;
+ const char *kernel_release;
+ const char *os_pretty_name;
+ const char *os_cpe_name;
+ usec_t os_support_end;
+ const char *virtualization;
+ const char *architecture;
+ const char *home_url;
+ const char *hardware_vendor;
+ const char *hardware_model;
+ const char *firmware_version;
+ usec_t firmware_date;
+ sd_id128_t machine_id;
+ sd_id128_t boot_id;
+} StatusInfo;
+
+static const char* chassis_string_to_glyph(const char *chassis) {
+ if (streq_ptr(chassis, "laptop"))
+ return u8"💻"; /* Personal Computer */
+ if (streq_ptr(chassis, "desktop"))
+ return u8"🖥️"; /* Desktop Computer */
+ if (streq_ptr(chassis, "server"))
+ return u8"🖳"; /* Old Personal Computer */
+ if (streq_ptr(chassis, "tablet"))
+ return u8"具"; /* Ideograph tool, implement; draw up, write, looks vaguely tabletty */
+ if (streq_ptr(chassis, "watch"))
+ return u8"⌚"; /* Watch */
+ if (streq_ptr(chassis, "handset"))
+ return u8"🕻"; /* Left Hand Telephone Receiver */
+ if (streq_ptr(chassis, "vm"))
+ return u8"🖴"; /* Hard disk */
+ if (streq_ptr(chassis, "container"))
+ return u8"☐"; /* Ballot Box */
+ return NULL;
+}
+
+static const char *os_support_end_color(usec_t n, usec_t eol) {
+ usec_t left;
+
+ /* If the end of support is over, color output in red. If only a month is left, color output in
+ * yellow. If more than a year is left, color green. In between just show in regular color. */
+
+ if (n >= eol)
+ return ANSI_HIGHLIGHT_RED;
+ left = eol - n;
+ if (left < USEC_PER_MONTH)
+ return ANSI_HIGHLIGHT_YELLOW;
+ if (left > USEC_PER_YEAR)
+ return ANSI_HIGHLIGHT_GREEN;
+
+ return NULL;
+}
+
+static int print_status_info(StatusInfo *i) {
+ _cleanup_(table_unrefp) Table *table = NULL;
+ TableCell *cell;
+ int r;
+
+ assert(i);
+
+ table = table_new_vertical();
+ if (!table)
+ return log_oom();
+
+ assert_se(cell = table_get_cell(table, 0, 0));
+ (void) table_set_ellipsize_percent(table, cell, 100);
+
+ table_set_ersatz_string(table, TABLE_ERSATZ_UNSET);
+
+ r = table_add_many(table,
+ TABLE_FIELD, "Static hostname",
+ TABLE_STRING, i->static_hostname);
+ if (r < 0)
+ return table_log_add_error(r);
+
+ if (!isempty(i->pretty_hostname) &&
+ !streq_ptr(i->pretty_hostname, i->static_hostname)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Pretty hostname",
+ TABLE_STRING, i->pretty_hostname);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->hostname) &&
+ !streq_ptr(i->hostname, i->static_hostname)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Transient hostname",
+ TABLE_STRING, i->hostname);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->icon_name)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Icon name",
+ TABLE_STRING, i->icon_name);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->chassis)) {
+ /* Possibly add a pretty symbol. Let's not bother with non-unicode fallbacks, because this is
+ * just a prettification and we can't really express this with ASCII anyway. */
+ const char *v = chassis_string_to_glyph(i->chassis);
+ if (v)
+ v = strjoina(i->chassis, " ", v);
+
+ r = table_add_many(table,
+ TABLE_FIELD, "Chassis",
+ TABLE_STRING, v ?: i->chassis);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->deployment)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Deployment",
+ TABLE_STRING, i->deployment);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->location)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Location",
+ TABLE_STRING, i->location);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!sd_id128_is_null(i->machine_id)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Machine ID",
+ TABLE_ID128, i->machine_id);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!sd_id128_is_null(i->boot_id)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Boot ID",
+ TABLE_ID128, i->boot_id);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->virtualization)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Virtualization",
+ TABLE_STRING, i->virtualization);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->os_pretty_name)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Operating System",
+ TABLE_STRING, i->os_pretty_name,
+ TABLE_SET_URL, i->home_url);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->os_cpe_name)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "CPE OS Name",
+ TABLE_STRING, i->os_cpe_name);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (i->os_support_end != USEC_INFINITY) {
+ usec_t n = now(CLOCK_REALTIME);
+
+ r = table_add_many(table,
+ TABLE_FIELD, "OS Support End",
+ TABLE_TIMESTAMP_DATE, i->os_support_end,
+ TABLE_FIELD, n < i->os_support_end ? "OS Support Remaining" : "OS Support Expired",
+ TABLE_TIMESPAN_DAY, n < i->os_support_end ? i->os_support_end - n : n - i->os_support_end,
+ TABLE_SET_COLOR, os_support_end_color(n, i->os_support_end));
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->kernel_name) && !isempty(i->kernel_release)) {
+ const char *v;
+
+ v = strjoina(i->kernel_name, " ", i->kernel_release);
+ r = table_add_many(table,
+ TABLE_FIELD, "Kernel",
+ TABLE_STRING, v);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->architecture)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Architecture",
+ TABLE_STRING, i->architecture);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->hardware_vendor)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Hardware Vendor",
+ TABLE_STRING, i->hardware_vendor);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->hardware_model)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Hardware Model",
+ TABLE_STRING, i->hardware_model);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (!isempty(i->firmware_version)) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Firmware Version",
+ TABLE_STRING, i->firmware_version);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+
+ if (timestamp_is_set(i->firmware_date)) {
+ usec_t n = now(CLOCK_REALTIME);
+
+ r = table_add_many(table,
+ TABLE_FIELD, "Firmware Date",
+ TABLE_TIMESTAMP_DATE, i->firmware_date);
+ if (r < 0)
+ return table_log_add_error(r);
+
+ if (i->firmware_date < n) {
+ r = table_add_many(table,
+ TABLE_FIELD, "Firmware Age",
+ TABLE_TIMESPAN_DAY, n - i->firmware_date,
+ TABLE_SET_COLOR, n - i->firmware_date > USEC_PER_YEAR*2 ? ANSI_HIGHLIGHT_YELLOW : NULL);
+ if (r < 0)
+ return table_log_add_error(r);
+ }
+ }
+
+ r = table_print(table, NULL);
+ if (r < 0)
+ return table_log_print_error(r);
+
+ return 0;
+}
+
+static int get_one_name(sd_bus *bus, const char* attr, char **ret) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ const char *s;
+ int r;
+
+ assert(bus);
+ assert(attr);
+
+ /* This obtains one string property, and copy it if 'ret' is set, or print it otherwise. */
+
+ r = bus_get_property(bus, bus_hostname, attr, &error, &reply, "s");
+ if (r < 0)
+ return log_error_errno(r, "Could not get property: %s", bus_error_message(&error, r));
+
+ r = sd_bus_message_read(reply, "s", &s);
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ if (ret) {
+ char *str;
+
+ str = strdup(s);
+ if (!str)
+ return log_oom();
+
+ *ret = str;
+ } else
+ printf("%s\n", s);
+
+ return 0;
+}
+
+static int show_all_names(sd_bus *bus) {
+ StatusInfo info = {};
+
+ static const struct bus_properties_map hostname_map[] = {
+ { "Hostname", "s", NULL, offsetof(StatusInfo, hostname) },
+ { "StaticHostname", "s", NULL, offsetof(StatusInfo, static_hostname) },
+ { "PrettyHostname", "s", NULL, offsetof(StatusInfo, pretty_hostname) },
+ { "IconName", "s", NULL, offsetof(StatusInfo, icon_name) },
+ { "Chassis", "s", NULL, offsetof(StatusInfo, chassis) },
+ { "Deployment", "s", NULL, offsetof(StatusInfo, deployment) },
+ { "Location", "s", NULL, offsetof(StatusInfo, location) },
+ { "KernelName", "s", NULL, offsetof(StatusInfo, kernel_name) },
+ { "KernelRelease", "s", NULL, offsetof(StatusInfo, kernel_release) },
+ { "OperatingSystemPrettyName", "s", NULL, offsetof(StatusInfo, os_pretty_name) },
+ { "OperatingSystemCPEName", "s", NULL, offsetof(StatusInfo, os_cpe_name) },
+ { "OperatingSystemSupportEnd", "t", NULL, offsetof(StatusInfo, os_support_end) },
+ { "HomeURL", "s", NULL, offsetof(StatusInfo, home_url) },
+ { "HardwareVendor", "s", NULL, offsetof(StatusInfo, hardware_vendor) },
+ { "HardwareModel", "s", NULL, offsetof(StatusInfo, hardware_model) },
+ { "FirmwareVersion", "s", NULL, offsetof(StatusInfo, firmware_version) },
+ { "FirmwareDate", "t", NULL, offsetof(StatusInfo, firmware_date) },
+ { "MachineID", "ay", bus_map_id128, offsetof(StatusInfo, machine_id) },
+ { "BootID", "ay", bus_map_id128, offsetof(StatusInfo, boot_id) },
+ {}
+ }, manager_map[] = {
+ { "Virtualization", "s", NULL, offsetof(StatusInfo, virtualization) },
+ { "Architecture", "s", NULL, offsetof(StatusInfo, architecture) },
+ {}
+ };
+
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *host_message = NULL, *manager_message = NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ int r;
+
+ r = bus_map_all_properties(bus,
+ "org.freedesktop.hostname1",
+ "/org/freedesktop/hostname1",
+ hostname_map,
+ 0,
+ &error,
+ &host_message,
+ &info);
+ if (r < 0)
+ return log_error_errno(r, "Failed to query system properties: %s", bus_error_message(&error, r));
+
+ r = bus_map_all_properties(bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ manager_map,
+ 0,
+ &error,
+ &manager_message,
+ &info);
+ if (r < 0)
+ return log_error_errno(r, "Failed to query system properties: %s", bus_error_message(&error, r));
+
+ /* For older version of hostnamed. */
+ if (!arg_host) {
+ if (sd_id128_is_null(info.machine_id))
+ (void) sd_id128_get_machine(&info.machine_id);
+ if (sd_id128_is_null(info.boot_id))
+ (void) sd_id128_get_boot(&info.boot_id);
+ }
+
+ return print_status_info(&info);
+}
+
+static int get_hostname_based_on_flag(sd_bus *bus) {
+ const char *attr;
+
+ if (!!arg_static + !!arg_pretty + !!arg_transient > 1)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Cannot query more than one name type at a time");
+
+ attr = arg_pretty ? "PrettyHostname" :
+ arg_static ? "StaticHostname" : "Hostname";
+
+ return get_one_name(bus, attr, NULL);
+}
+
+static int show_status(int argc, char **argv, void *userdata) {
+ sd_bus *bus = userdata;
+ int r;
+
+ if (arg_json_format_flags != JSON_FORMAT_OFF) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
+ const char *text = NULL;
+
+ r = bus_call_method(bus, bus_hostname, "Describe", &error, &reply, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Could not get description: %s", bus_error_message(&error, r));
+
+ r = sd_bus_message_read(reply, "s", &text);
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ r = json_parse(text, 0, &v, NULL, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse JSON: %m");
+
+ json_variant_dump(v, arg_json_format_flags, NULL, NULL);
+ return 0;
+ }
+
+ if (arg_pretty || arg_static || arg_transient)
+ return get_hostname_based_on_flag(bus);
+
+ return show_all_names(bus);
+}
+
+
+static int set_simple_string_internal(sd_bus *bus, sd_bus_error *error, const char *target, const char *method, const char *value) {
+ _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL;
+ int r;
+
+ polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
+
+ if (!error)
+ error = &e;
+
+ r = bus_call_method(bus, bus_hostname, method, error, NULL, "sb", value, arg_ask_password);
+ if (r < 0)
+ return log_error_errno(r, "Could not set %s: %s", target, bus_error_message(error, r));
+
+ return 0;
+}
+
+static int set_simple_string(sd_bus *bus, const char *target, const char *method, const char *value) {
+ return set_simple_string_internal(bus, NULL, target, method, value);
+}
+
+static int set_hostname(int argc, char **argv, void *userdata) {
+ _cleanup_free_ char *h = NULL;
+ const char *hostname = argv[1];
+ sd_bus *bus = userdata;
+ bool implicit = false, show_hint = false;
+ int r, ret = 0;
+
+ if (!arg_pretty && !arg_static && !arg_transient)
+ arg_pretty = arg_static = arg_transient = implicit = true;
+
+ if (!implicit && !arg_static && arg_transient) {
+ _cleanup_free_ char *source = NULL;
+
+ r = get_one_name(bus, "HostnameSource", &source);
+ if (r < 0)
+ return r;
+
+ if (hostname_source_from_string(source) == HOSTNAME_STATIC)
+ log_info("Hint: static hostname is already set, so the specified transient hostname will not be used.");
+ }
+
+ if (arg_pretty) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ const char *p;
+
+ /* If the passed hostname is already valid, then assume the user doesn't know anything about pretty
+ * hostnames, so let's unset the pretty hostname, and just set the passed hostname as static/dynamic
+ * hostname. */
+ if (implicit && hostname_is_valid(hostname, VALID_HOSTNAME_TRAILING_DOT))
+ p = ""; /* No pretty hostname (as it is redundant), just a static one */
+ else
+ p = hostname; /* Use the passed name as pretty hostname */
+
+ r = set_simple_string_internal(bus, &error, "pretty hostname", "SetPrettyHostname", p);
+ if (r < 0) {
+ if (implicit &&
+ sd_bus_error_has_names(&error,
+ BUS_ERROR_FILE_IS_PROTECTED,
+ BUS_ERROR_READ_ONLY_FILESYSTEM)) {
+ show_hint = true;
+ ret = r;
+ } else
+ return r;
+ }
+
+ /* Now that we set the pretty hostname, let's clean up the parameter and use that as static
+ * hostname. If the hostname was already valid as static hostname, this will only chop off the trailing
+ * dot if there is one. If it was not valid, then it will be made fully valid by truncating, dropping
+ * multiple dots, and dropping weird chars. Note that we clean the name up only if we also are
+ * supposed to set the pretty name. If the pretty name is not being set we assume the user knows what
+ * they are doing and pass the name as-is. */
+ h = strdup(hostname);
+ if (!h)
+ return log_oom();
+
+ hostname = hostname_cleanup(h); /* Use the cleaned up name as static hostname */
+ }
+
+ if (arg_static) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+
+ r = set_simple_string_internal(bus, &error, "static hostname", "SetStaticHostname", hostname);
+ if (r < 0) {
+ if (implicit &&
+ sd_bus_error_has_names(&error,
+ BUS_ERROR_FILE_IS_PROTECTED,
+ BUS_ERROR_READ_ONLY_FILESYSTEM)) {
+ show_hint = true;
+ ret = r;
+ } else
+ return r;
+ }
+ }
+
+ if (arg_transient) {
+ r = set_simple_string(bus, "transient hostname", "SetHostname", hostname);
+ if (r < 0)
+ return r;
+ }
+
+ if (show_hint)
+ log_info("Hint: use --transient option when /etc/machine-info or /etc/hostname cannot be modified (e.g. located in read-only filesystem).");
+
+ return ret;
+}
+
+static int get_or_set_hostname(int argc, char **argv, void *userdata) {
+ return argc == 1 ? get_hostname_based_on_flag(userdata) :
+ set_hostname(argc, argv, userdata);
+}
+
+static int get_or_set_icon_name(int argc, char **argv, void *userdata) {
+ return argc == 1 ? get_one_name(userdata, "IconName", NULL) :
+ set_simple_string(userdata, "icon", "SetIconName", argv[1]);
+}
+
+static int get_or_set_chassis(int argc, char **argv, void *userdata) {
+ return argc == 1 ? get_one_name(userdata, "Chassis", NULL) :
+ set_simple_string(userdata, "chassis", "SetChassis", argv[1]);
+}
+
+static int get_or_set_deployment(int argc, char **argv, void *userdata) {
+ return argc == 1 ? get_one_name(userdata, "Deployment", NULL) :
+ set_simple_string(userdata, "deployment", "SetDeployment", argv[1]);
+}
+
+static int get_or_set_location(int argc, char **argv, void *userdata) {
+ return argc == 1 ? get_one_name(userdata, "Location", NULL) :
+ set_simple_string(userdata, "location", "SetLocation", argv[1]);
+}
+
+static int help(void) {
+ _cleanup_free_ char *link = NULL;
+ int r;
+
+ r = terminal_urlify_man("hostnamectl", "1", &link);
+ if (r < 0)
+ return log_oom();
+
+ printf("%s [OPTIONS...] COMMAND ...\n\n"
+ "%sQuery or change system hostname.%s\n"
+ "\nCommands:\n"
+ " status Show current hostname settings\n"
+ " hostname [NAME] Get/set system hostname\n"
+ " icon-name [NAME] Get/set icon name for host\n"
+ " chassis [NAME] Get/set chassis type for host\n"
+ " deployment [NAME] Get/set deployment environment for host\n"
+ " location [NAME] Get/set location for host\n"
+ "\nOptions:\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --no-ask-password Do not prompt for password\n"
+ " -H --host=[USER@]HOST Operate on remote host\n"
+ " -M --machine=CONTAINER Operate on local container\n"
+ " --transient Only set transient hostname\n"
+ " --static Only set static hostname\n"
+ " --pretty Only set pretty hostname\n"
+ " --json=pretty|short|off\n"
+ " Generate JSON output\n"
+ "\nSee the %s for details.\n",
+ program_invocation_short_name,
+ ansi_highlight(),
+ ansi_normal(),
+ link);
+
+ return 0;
+}
+
+static int verb_help(int argc, char **argv, void *userdata) {
+ return help();
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_NO_ASK_PASSWORD,
+ ARG_TRANSIENT,
+ ARG_STATIC,
+ ARG_PRETTY,
+ ARG_JSON,
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "transient", no_argument, NULL, ARG_TRANSIENT },
+ { "static", no_argument, NULL, ARG_STATIC },
+ { "pretty", no_argument, NULL, ARG_PRETTY },
+ { "host", required_argument, NULL, 'H' },
+ { "machine", required_argument, NULL, 'M' },
+ { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
+ { "json", required_argument, NULL, ARG_JSON },
+ {}
+ };
+
+ int c, r;
+
+ 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:
+ return version();
+
+ case 'H':
+ arg_transport = BUS_TRANSPORT_REMOTE;
+ arg_host = optarg;
+ break;
+
+ case 'M':
+ arg_transport = BUS_TRANSPORT_MACHINE;
+ arg_host = optarg;
+ break;
+
+ case ARG_TRANSIENT:
+ arg_transient = true;
+ break;
+
+ case ARG_PRETTY:
+ arg_pretty = true;
+ break;
+
+ case ARG_STATIC:
+ arg_static = true;
+ break;
+
+ case ARG_NO_ASK_PASSWORD:
+ arg_ask_password = false;
+ break;
+
+ case ARG_JSON:
+ r = parse_json_argument(optarg, &arg_json_format_flags);
+ if (r <= 0)
+ return r;
+
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ assert_not_reached();
+ }
+
+ return 1;
+}
+
+static int hostnamectl_main(sd_bus *bus, int argc, char *argv[]) {
+
+ static const Verb verbs[] = {
+ { "status", VERB_ANY, 1, VERB_DEFAULT, show_status },
+ { "hostname", VERB_ANY, 2, 0, get_or_set_hostname },
+ { "set-hostname", 2, 2, 0, get_or_set_hostname }, /* obsolete */
+ { "icon-name", VERB_ANY, 2, 0, get_or_set_icon_name },
+ { "set-icon-name", 2, 2, 0, get_or_set_icon_name }, /* obsolete */
+ { "chassis", VERB_ANY, 2, 0, get_or_set_chassis },
+ { "set-chassis", 2, 2, 0, get_or_set_chassis }, /* obsolete */
+ { "deployment", VERB_ANY, 2, 0, get_or_set_deployment },
+ { "set-deployment", 2, 2, 0, get_or_set_deployment }, /* obsolete */
+ { "location", VERB_ANY, 2, 0, get_or_set_location },
+ { "set-location", 2, 2, 0, get_or_set_location }, /* obsolete */
+ { "help", VERB_ANY, VERB_ANY, 0, verb_help }, /* Not documented, but supported since it is created. */
+ {}
+ };
+
+ return dispatch_verb(argc, argv, verbs, bus);
+}
+
+static int run(int argc, char *argv[]) {
+ _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+ int r;
+
+ setlocale(LC_ALL, "");
+ log_setup();
+
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ return r;
+
+ r = bus_connect_transport(arg_transport, arg_host, RUNTIME_SCOPE_SYSTEM, &bus);
+ if (r < 0)
+ return bus_log_connect_error(r, arg_transport);
+
+ return hostnamectl_main(bus, argc, argv);
+}
+
+DEFINE_MAIN_FUNCTION(run);