+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2012 Lennart Poettering
- Copyright 2013 Kay Sievers
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdlib.h>
-#include <stdbool.h>
-#include <getopt.h>
-#include <locale.h>
-
-#include "sd-bus.h"
-#include "bus-util.h"
-#include "bus-error.h"
-#include "util.h"
-#include "spawn-polkit-agent.h"
-#include "build.h"
-#include "strv.h"
-#include "pager.h"
-
-static bool arg_no_pager = false;
-static bool arg_ask_password = true;
-static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
-static char *arg_host = NULL;
-static bool arg_adjust_system_clock = false;
-
-static void pager_open_if_enabled(void) {
-
- if (arg_no_pager)
- return;
-
- pager_open(false);
-}
-
-static void polkit_agent_open_if_enabled(void) {
-
- /* Open the polkit agent as a child process if necessary */
- if (!arg_ask_password)
- return;
-
- if (arg_transport != BUS_TRANSPORT_LOCAL)
- return;
-
- polkit_agent_open();
-}
-
-typedef struct StatusInfo {
- usec_t time;
- char *timezone;
-
- usec_t rtc_time;
- bool rtc_local;
-
- bool ntp_enabled;
- bool ntp_capable;
- bool ntp_synced;
-} StatusInfo;
-
-static void print_status_info(const StatusInfo *i) {
- char a[FORMAT_TIMESTAMP_MAX];
- struct tm tm;
- time_t sec;
- bool have_time = false;
- const char *old_tz = NULL, *tz;
- int r;
-
- assert(i);
-
- /* Save the old $TZ */
- tz = getenv("TZ");
- if (tz)
- old_tz = strdupa(tz);
-
- /* Set the new $TZ */
- if (setenv("TZ", i->timezone, true) < 0)
- log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
- else
- tzset();
-
- if (i->time != 0) {
- sec = (time_t) (i->time / USEC_PER_SEC);
- have_time = true;
- } else if (IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) {
- sec = time(NULL);
- have_time = true;
- } else
- log_warning("Could not get time from timedated and not operating locally, ignoring.");
-
- if (have_time) {
- xstrftime(a, "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm));
- printf(" Local time: %.*s\n", (int) sizeof(a), a);
-
- xstrftime(a, "%a %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm));
- printf(" Universal time: %.*s\n", (int) sizeof(a), a);
- } else {
- printf(" Local time: %s\n", "n/a");
- printf(" Universal time: %s\n", "n/a");
- }
-
- if (i->rtc_time > 0) {
- time_t rtc_sec;
-
- rtc_sec = (time_t) (i->rtc_time / USEC_PER_SEC);
- xstrftime(a, "%a %Y-%m-%d %H:%M:%S", gmtime_r(&rtc_sec, &tm));
- printf(" RTC time: %.*s\n", (int) sizeof(a), a);
- } else
- printf(" RTC time: %s\n", "n/a");
-
- if (have_time)
- xstrftime(a, "%Z, %z", localtime_r(&sec, &tm));
-
- /* Restore the $TZ */
- if (old_tz)
- r = setenv("TZ", old_tz, true);
- else
- r = unsetenv("TZ");
- if (r < 0)
- log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
- else
- tzset();
-
- printf(" Time zone: %s (%.*s)\n"
- " NTP enabled: %s\n"
- "NTP synchronized: %s\n"
- " RTC in local TZ: %s\n",
- strna(i->timezone), (int) sizeof(a), have_time ? a : "n/a",
- i->ntp_capable ? yes_no(i->ntp_enabled) : "n/a",
- yes_no(i->ntp_synced),
- yes_no(i->rtc_local));
-
- if (i->rtc_local)
- fputs("\n" ANSI_HIGHLIGHT_ON
- "Warning: The system is configured to read the RTC time in the local time zone. This\n"
- " mode can not be fully supported. It will create various problems with time\n"
- " zone changes and daylight saving time adjustments. The RTC time is never updated,\n"
- " it relies on external facilities to maintain it. If at all possible, use\n"
- " RTC in UTC by calling 'timedatectl set-local-rtc 0'" ANSI_HIGHLIGHT_OFF ".\n", stdout);
-}
-
-static int show_status(sd_bus *bus, char **args, unsigned n) {
- StatusInfo info = {};
- static const struct bus_properties_map map[] = {
- { "Timezone", "s", NULL, offsetof(StatusInfo, timezone) },
- { "LocalRTC", "b", NULL, offsetof(StatusInfo, rtc_local) },
- { "NTP", "b", NULL, offsetof(StatusInfo, ntp_enabled) },
- { "CanNTP", "b", NULL, offsetof(StatusInfo, ntp_capable) },
- { "NTPSynchronized", "b", NULL, offsetof(StatusInfo, ntp_synced) },
- { "TimeUSec", "t", NULL, offsetof(StatusInfo, time) },
- { "RTCTimeUSec", "t", NULL, offsetof(StatusInfo, rtc_time) },
- {}
- };
- int r;
-
- assert(bus);
-
- r = bus_map_all_properties(bus,
- "org.freedesktop.timedate1",
- "/org/freedesktop/timedate1",
- map,
- &info);
- if (r < 0) {
- log_error_errno(r, "Failed to query server: %m");
- goto fail;
- }
-
- print_status_info(&info);
-
-fail:
- free(info.timezone);
- return r;
-}
-
-static int set_time(sd_bus *bus, char **args, unsigned n) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- bool relative = false, interactive = arg_ask_password;
- usec_t t;
- int r;
-
- assert(args);
- assert(n == 2);
-
- polkit_agent_open_if_enabled();
-
- r = parse_timestamp(args[1], &t);
- if (r < 0) {
- log_error("Failed to parse time specification: %s", args[1]);
- return r;
- }
-
- r = sd_bus_call_method(bus,
- "org.freedesktop.timedate1",
- "/org/freedesktop/timedate1",
- "org.freedesktop.timedate1",
- "SetTime",
- &error,
- NULL,
- "xbb", (int64_t)t, relative, interactive);
- if (r < 0)
- log_error("Failed to set time: %s", bus_error_message(&error, -r));
-
- return r;
-}
-
-static int set_timezone(sd_bus *bus, char **args, unsigned n) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- int r;
-
- assert(args);
- assert(n == 2);
-
- polkit_agent_open_if_enabled();
-
- r = sd_bus_call_method(bus,
- "org.freedesktop.timedate1",
- "/org/freedesktop/timedate1",
- "org.freedesktop.timedate1",
- "SetTimezone",
- &error,
- NULL,
- "sb", args[1], arg_ask_password);
- if (r < 0)
- log_error("Failed to set time zone: %s", bus_error_message(&error, -r));
-
- return r;
-}
-
-static int set_local_rtc(sd_bus *bus, char **args, unsigned n) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- int r, b;
-
- assert(args);
- assert(n == 2);
-
- polkit_agent_open_if_enabled();
-
- b = parse_boolean(args[1]);
- if (b < 0) {
- log_error("Failed to parse local RTC setting: %s", args[1]);
- return b;
- }
-
- r = sd_bus_call_method(bus,
- "org.freedesktop.timedate1",
- "/org/freedesktop/timedate1",
- "org.freedesktop.timedate1",
- "SetLocalRTC",
- &error,
- NULL,
- "bbb", b, arg_adjust_system_clock, arg_ask_password);
- if (r < 0)
- log_error("Failed to set local RTC: %s", bus_error_message(&error, -r));
-
- return r;
-}
-
-static int set_ntp(sd_bus *bus, char **args, unsigned n) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- int b, r;
-
- assert(args);
- assert(n == 2);
-
- polkit_agent_open_if_enabled();
-
- b = parse_boolean(args[1]);
- if (b < 0) {
- log_error("Failed to parse NTP setting: %s", args[1]);
- return b;
- }
-
- r = sd_bus_call_method(bus,
- "org.freedesktop.timedate1",
- "/org/freedesktop/timedate1",
- "org.freedesktop.timedate1",
- "SetNTP",
- &error,
- NULL,
- "bb", b, arg_ask_password);
- if (r < 0)
- log_error("Failed to set ntp: %s", bus_error_message(&error, -r));
-
- return r;
-}
-
-static int list_timezones(sd_bus *bus, char **args, unsigned n) {
- _cleanup_strv_free_ char **zones = NULL;
- int r;
-
- assert(args);
- assert(n == 1);
-
- r = get_timezones(&zones);
- if (r < 0)
- return log_error_errno(r, "Failed to read list of time zones: %m");
-
- pager_open_if_enabled();
- strv_print(zones);
-
- return 0;
-}
-
-static void help(void) {
- printf("%s [OPTIONS...] COMMAND ...\n\n"
- "Query or change system time and date settings.\n\n"
- " -h --help Show this help message\n"
- " --version Show package version\n"
- " --no-pager Do not pipe output into a pager\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"
- " --adjust-system-clock Adjust system clock when changing local RTC mode\n\n"
- "Commands:\n"
- " status Show current time settings\n"
- " set-time TIME Set system time\n"
- " set-timezone ZONE Set system time zone\n"
- " list-timezones Show known time zones\n"
- " set-local-rtc BOOL Control whether RTC is in local time\n"
- " set-ntp BOOL Control whether NTP is enabled\n",
- program_invocation_short_name);
-}
-
-static int parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_VERSION = 0x100,
- ARG_NO_PAGER,
- ARG_ADJUST_SYSTEM_CLOCK,
- ARG_NO_ASK_PASSWORD
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- { "no-pager", no_argument, NULL, ARG_NO_PAGER },
- { "host", required_argument, NULL, 'H' },
- { "machine", required_argument, NULL, 'M' },
- { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
- { "adjust-system-clock", no_argument, NULL, ARG_ADJUST_SYSTEM_CLOCK },
- {}
- };
-
- int c;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0)
-
- switch (c) {
-
- case 'h':
- help();
- return 0;
-
- case ARG_VERSION:
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
- return 0;
-
- case 'H':
- arg_transport = BUS_TRANSPORT_REMOTE;
- arg_host = optarg;
- break;
-
- case 'M':
- arg_transport = BUS_TRANSPORT_MACHINE;
- arg_host = optarg;
- break;
-
- case ARG_NO_ASK_PASSWORD:
- arg_ask_password = false;
- break;
-
- case ARG_ADJUST_SYSTEM_CLOCK:
- arg_adjust_system_clock = true;
- break;
-
- case ARG_NO_PAGER:
- arg_no_pager = true;
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- assert_not_reached("Unhandled option");
- }
-
- return 1;
-}
-
-static int timedatectl_main(sd_bus *bus, int argc, char *argv[]) {
-
- static const struct {
- const char* verb;
- const enum {
- MORE,
- LESS,
- EQUAL
- } argc_cmp;
- const int argc;
- int (* const dispatch)(sd_bus *bus, char **args, unsigned n);
- } verbs[] = {
- { "status", LESS, 1, show_status },
- { "set-time", EQUAL, 2, set_time },
- { "set-timezone", EQUAL, 2, set_timezone },
- { "list-timezones", EQUAL, 1, list_timezones },
- { "set-local-rtc", EQUAL, 2, set_local_rtc },
- { "set-ntp", EQUAL, 2, set_ntp, },
- };
-
- int left;
- unsigned i;
-
- assert(argc >= 0);
- assert(argv);
-
- left = argc - optind;
-
- if (left <= 0)
- /* Special rule: no arguments means "status" */
- i = 0;
- else {
- if (streq(argv[optind], "help")) {
- help();
- return 0;
- }
-
- for (i = 0; i < ELEMENTSOF(verbs); i++)
- if (streq(argv[optind], verbs[i].verb))
- break;
-
- if (i >= ELEMENTSOF(verbs)) {
- log_error("Unknown operation %s", argv[optind]);
- return -EINVAL;
- }
- }
-
- switch (verbs[i].argc_cmp) {
-
- case EQUAL:
- if (left != verbs[i].argc) {
- log_error("Invalid number of arguments.");
- return -EINVAL;
- }
-
- break;
-
- case MORE:
- if (left < verbs[i].argc) {
- log_error("Too few arguments.");
- return -EINVAL;
- }
-
- break;
-
- case LESS:
- if (left > verbs[i].argc) {
- log_error("Too many arguments.");
- return -EINVAL;
- }
-
- break;
-
- default:
- assert_not_reached("Unknown comparison operator.");
- }
-
- return verbs[i].dispatch(bus, argv + optind, left);
-}
-
-int main(int argc, char *argv[]) {
- _cleanup_bus_close_unref_ sd_bus *bus = NULL;
- int r;
-
- setlocale(LC_ALL, "");
- log_parse_environment();
- log_open();
-
- r = parse_argv(argc, argv);
- if (r <= 0)
- goto finish;
-
- r = bus_open_transport(arg_transport, arg_host, false, &bus);
- if (r < 0) {
- log_error_errno(r, "Failed to create bus connection: %m");
- goto finish;
- }
-
- r = timedatectl_main(bus, argc, argv);
-
-finish:
- pager_close();
-
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-}
~ianmdlvl / elogind.git / blobdiff