./move.sh

1 files changed, 514 insertions, 0 deletions

diff --git a/src/systemd-timedate/timedatectl.c b/src/systemd-timedate/timedatectl.c
new file mode 100644
index 0000000000..28546a0ad1
--- /dev/null
+++ b/src/systemd-timedate/timedatectl.c
@@ -0,0 +1,514 @@
+/***
+  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 <getopt.h>
+#include <locale.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include <systemd/sd-bus.h>
+
+#include "bus-error.h"
+#include "bus-util.h"
+#include "pager.h"
+#include "parse-util.h"
+#include "spawn-polkit-agent.h"
+#include "strv.h"
+#include "terminal-util.h"
+#include "util.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 status_info_clear(StatusInfo *info) {
+        if (info) {
+                free(info->timezone);
+                zero(*info);
+        }
+}
+
+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", isempty(i->timezone) ? "UTC" : 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"
+               " Network time on: %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
+                      "Warning: The system is configured to read the RTC time in the local time zone.\n"
+                      "         This mode can not be fully supported. It will create various problems\n"
+                      "         with time zone changes and daylight saving time adjustments. The RTC\n"
+                      "         time is never updated, it relies on external facilities to maintain it.\n"
+                      "         If at all possible, use RTC in UTC by calling\n"
+                      "         'timedatectl set-local-rtc 0'." ANSI_NORMAL "\n", stdout);
+}
+
+static int show_status(sd_bus *bus, char **args, unsigned n) {
+        _cleanup_(status_info_clear) 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)
+                return log_error_errno(r, "Failed to query server: %m");
+
+        print_status_info(&info);
+
+        return r;
+}
+
+static int set_time(sd_bus *bus, char **args, unsigned n) {
+        _cleanup_(sd_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_(sd_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_(sd_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_(sd_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             Enable or disable network time synchronization\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:
+                        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_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_(sd_bus_flush_close_unrefp) 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_connect_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;
+}