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
#include "util.h"
#include "spawn-polkit-agent.h"
#include "build.h"
-#include "hwclock.h"
#include "strv.h"
#include "pager.h"
#include "time-dst.h"
-static bool arg_adjust_system_clock = false;
static bool arg_no_pager = false;
-static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
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) {
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 {
- const char *timezone;
- bool local_rtc;
- bool ntp;
- bool can_ntp;
+ usec_t time;
+ char *timezone;
+
+ usec_t rtc_time;
+ bool rtc_local;
+
+ bool ntp_enabled;
+ bool ntp_capable;
+ bool ntp_synced;
} StatusInfo;
static const char *jump_str(int delta_minutes, char *s, size_t size) {
return "";
}
-static void print_status_info(StatusInfo *i) {
- usec_t n;
+static void print_status_info(const StatusInfo *i) {
char a[FORMAT_TIMESTAMP_MAX];
char b[FORMAT_TIMESTAMP_MAX];
char s[32];
struct tm tm;
time_t sec;
- char *zc, *zn;
+ bool have_time = false;
+ _cleanup_free_ char *zc = NULL, *zn = NULL;
time_t t, tc, tn;
- int dn;
- bool is_dstc, is_dstn;
+ int dn = 0;
+ bool is_dstc = false, is_dstn = false;
int r;
assert(i);
- /* enforce the values of /etc/localtime */
+ /* Enforce the values of /etc/localtime */
if (getenv("TZ")) {
- fprintf(stderr, "Warning: ignoring the TZ variable, reading the system's timezone setting only.\n\n");
+ fprintf(stderr, "Warning: Ignoring the TZ variable. Reading the system's time zone setting only.\n\n");
unsetenv("TZ");
}
- n = now(CLOCK_REALTIME);
- sec = (time_t) (n / USEC_PER_SEC);
-
- zero(tm);
- assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm)) > 0);
- char_array_0(a);
- printf(" Local time: %s\n", a);
+ if (i->time != 0) {
+ sec = (time_t) (i->time / USEC_PER_SEC);
+ have_time = true;
+ } else if (arg_transport == BUS_TRANSPORT_LOCAL) {
+ sec = time(NULL);
+ have_time = true;
+ } else
+ fprintf(stderr, "Warning: Could not get time from timedated and not operating locally.\n\n");
- zero(tm);
- assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm)) > 0);
- char_array_0(a);
- printf(" Universal time: %s\n", a);
-
- zero(tm);
- r = hwclock_get_time(&tm);
- if (r >= 0) {
- /* Calculate the week-day */
- mktime(&tm);
+ if (have_time) {
+ zero(tm);
+ assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm)) > 0);
+ char_array_0(a);
+ printf(" Local time: %s\n", a);
- assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S", &tm) > 0);
+ zero(tm);
+ assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm)) > 0);
char_array_0(a);
- printf(" RTC time: %s\n", a);
+ printf(" Universal time: %s\n", a);
+ } else {
+ printf(" Local time: %s\n", "n/a");
+ printf(" Universal time: %s\n", "n/a");
}
- zero(tm);
- assert_se(strftime(a, sizeof(a), "%Z, %z", localtime_r(&sec, &tm)) > 0);
- char_array_0(a);
- printf(" Timezone: %s (%s)\n"
- " NTP enabled: %s\n"
- "NTP synchronized: %s\n"
- " RTC in local TZ: %s\n",
- strna(i->timezone),
- a,
- i->can_ntp ? yes_no(i->ntp) : "n/a",
- yes_no(ntp_synced()),
- yes_no(i->local_rtc));
-
- r = time_get_dst(sec, "/etc/localtime",
- &tc, &zc, &is_dstc,
- &tn, &dn, &zn, &is_dstn);
- if (r < 0)
- printf(" DST active: n/a\n");
- else {
- printf(" DST active: %s\n", yes_no(is_dstc));
+ if (i->rtc_time > 0) {
+ time_t rtc_sec;
- t = tc - 1;
+ rtc_sec = (time_t)(i->rtc_time / USEC_PER_SEC);
zero(tm);
- assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&t, &tm)) > 0);
+ assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S", gmtime_r(&rtc_sec, &tm)) > 0);
char_array_0(a);
+ printf(" RTC time: %s\n", a);
+ } else
+ printf(" RTC time: %s\n", "n/a");
+ if (have_time) {
zero(tm);
- assert_se(strftime(b, sizeof(b), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&tc, &tm)) > 0);
- char_array_0(b);
- printf(" Last DST change: DST %s at\n"
- " %s\n"
- " %s\n",
- is_dstc ? "began" : "ended", a, b);
-
- t = tn - 1;
- zero(tm);
- assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&t, &tm)) > 0);
+ assert_se(strftime(a, sizeof(a), "%Z, %z", localtime_r(&sec, &tm)) > 0);
char_array_0(a);
-
- zero(tm);
- assert_se(strftime(b, sizeof(b), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&tn, &tm)) > 0);
- char_array_0(b);
- printf(" Next DST change: DST %s (the clock jumps %s) at\n"
- " %s\n"
- " %s\n",
- is_dstn ? "begins" : "ends", jump_str(dn, s, sizeof(s)), a, b);
-
- free(zc);
- free(zn);
- }
-
- if (i->local_rtc)
- fputs("\n" ANSI_HIGHLIGHT_ON
- "Warning: The RTC is configured to maintain time in the local timezone. This\n"
- " mode is not fully supported and will create various problems with time\n"
- " zone changes and daylight saving adjustments. If at all possible use\n"
- " RTC in UTC, by calling 'timedatectl set-local-rtc 0'" ANSI_HIGHLIGHT_OFF ".\n", stdout);
-}
-
-static int get_timedate_property_bool(sd_bus *bus, const char *name, bool *target) {
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- int r;
-
- assert(name);
-
- r = sd_bus_get_property(bus,
- "org.freedesktop.timedate1",
- "/org/freedesktop/timedate1",
- "org.freedesktop.timedate1",
- name,
- &error,
- &reply,
- "b");
- if (r < 0) {
- log_error("Failed to get property: %s %s", name, bus_error_message(&error, -r));
- return r;
}
- r = sd_bus_message_read(reply, "b", target);
- if (r < 0) {
- log_error("Failed to parse reply.");
- return r;
- }
+ printf(" Time zone: %s (%s)\n"
+ " NTP enabled: %s\n"
+ "NTP synchronized: %s\n"
+ " RTC in local TZ: %s\n",
+ strna(i->timezone), 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 (have_time) {
+ r = time_get_dst(sec, "/etc/localtime",
+ &tc, &zc, &is_dstc,
+ &tn, &dn, &zn, &is_dstn);
+ if (r < 0)
+ printf(" DST active: %s\n", "n/a");
+ else {
+ printf(" DST active: %s\n", yes_no(is_dstc));
+
+ t = tc - 1;
+ zero(tm);
+ assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&t, &tm)) > 0);
+ char_array_0(a);
+
+ zero(tm);
+ assert_se(strftime(b, sizeof(b), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&tc, &tm)) > 0);
+ char_array_0(b);
+ printf(" Last DST change: DST %s at\n"
+ " %s\n"
+ " %s\n",
+ is_dstc ? "began" : "ended", a, b);
+
+ t = tn - 1;
+ zero(tm);
+ assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&t, &tm)) > 0);
+ char_array_0(a);
+
+ zero(tm);
+ assert_se(strftime(b, sizeof(b), "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&tn, &tm)) > 0);
+ char_array_0(b);
+ printf(" Next DST change: DST %s (the clock jumps %s) at\n"
+ " %s\n"
+ " %s\n",
+ is_dstn ? "begins" : "ends", jump_str(dn, s, sizeof(s)), a, b);
+ }
+ } else
+ printf(" DST active: %s\n", yes_no(is_dstc));
- return 0;
+ 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) {
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- int r;
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 = sd_bus_get_property(bus,
- "org.freedesktop.timedate1",
- "/org/freedesktop/timedate1",
- "org.freedesktop.timedate1",
- "Timezone",
- &error,
- &reply,
- "s");
+ r = bus_map_all_properties(bus,
+ "org.freedesktop.timedate1",
+ "/org/freedesktop/timedate1",
+ map,
+ &info);
if (r < 0) {
- log_error("Failed to get property: Timezone %s", bus_error_message(&error, -r));
- return r;
+ log_error_errno(r, "Failed to query server: %m");
+ goto fail;
}
- r = sd_bus_message_read(reply, "s", &info.timezone);
- if (r < 0)
- return r;
-
- r = get_timedate_property_bool(bus, "LocalRTC", &info.local_rtc);
- if (r < 0)
- return r;
-
- r = get_timedate_property_bool(bus, "NTP", &info.ntp);
- if (r < 0)
- return r;
-
- r = get_timedate_property_bool(bus, "CanNTP", &info.can_ntp);
- if (r < 0)
- return r;
-
print_status_info(&info);
- return 0;
+
+fail:
+ free(info.timezone);
+ return r;
}
static int set_time(sd_bus *bus, char **args, unsigned n) {
static int set_timezone(sd_bus *bus, char **args, unsigned n) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- bool interactive = arg_ask_password;
int r;
assert(args);
"SetTimezone",
&error,
NULL,
- "sb", args[1], interactive);
+ "sb", args[1], arg_ask_password);
if (r < 0)
- log_error("Failed to set timezone: %s", bus_error_message(&error, -r));
+ 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;
- bool interactive = arg_ask_password, b, q;
- int r;
+ int r, b;
assert(args);
assert(n == 2);
polkit_agent_open_if_enabled();
- r = parse_boolean(args[1]);
- if (r < 0) {
+ b = parse_boolean(args[1]);
+ if (b < 0) {
log_error("Failed to parse local RTC setting: %s", args[1]);
- return r;
+ return b;
}
- b = r;
- q = arg_adjust_system_clock;
-
r = sd_bus_call_method(bus,
"org.freedesktop.timedate1",
"/org/freedesktop/timedate1",
"SetLocalRTC",
&error,
NULL,
- "bbb", b, q, interactive);
+ "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));
static int set_ntp(sd_bus *bus, char **args, unsigned n) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- bool interactive = arg_ask_password, b;
- int r;
+ int b, r;
assert(args);
assert(n == 2);
polkit_agent_open_if_enabled();
- r = parse_boolean(args[1]);
- if (r < 0) {
+ b = parse_boolean(args[1]);
+ if (b < 0) {
log_error("Failed to parse NTP setting: %s", args[1]);
- return r;
+ return b;
}
- b = r;
-
r = sd_bus_call_method(bus,
"org.freedesktop.timedate1",
"/org/freedesktop/timedate1",
"SetNTP",
&error,
NULL,
- "bb", b, interactive);
+ "bb", b, arg_ask_password);
if (r < 0)
log_error("Failed to set ntp: %s", bus_error_message(&error, -r));
}
static int list_timezones(sd_bus *bus, char **args, unsigned n) {
- _cleanup_fclose_ FILE *f = NULL;
_cleanup_strv_free_ char **zones = NULL;
- size_t n_zones = 0;
+ int r;
assert(args);
assert(n == 1);
- f = fopen("/usr/share/zoneinfo/zone.tab", "re");
- if (!f) {
- log_error("Failed to open timezone database: %m");
- return -errno;
- }
-
- for (;;) {
- char l[LINE_MAX], *p, **z, *w;
- size_t k;
-
- if (!fgets(l, sizeof(l), f)) {
- if (feof(f))
- break;
-
- log_error("Failed to read timezone database: %m");
- return -errno;
- }
-
- p = strstrip(l);
-
- if (isempty(p) || *p == '#')
- continue;
-
-
- /* Skip over country code */
- p += strcspn(p, WHITESPACE);
- p += strspn(p, WHITESPACE);
-
- /* Skip over coordinates */
- p += strcspn(p, WHITESPACE);
- p += strspn(p, WHITESPACE);
-
- /* Found timezone name */
- k = strcspn(p, WHITESPACE);
- if (k <= 0)
- continue;
-
- w = strndup(p, k);
- if (!w)
- return log_oom();
-
- z = realloc(zones, sizeof(char*) * (n_zones + 2));
- if (!z) {
- free(w);
- return log_oom();
- }
-
- zones = z;
- zones[n_zones++] = w;
- }
-
- if (zones)
- zones[n_zones] = NULL;
+ 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_sort(zones);
strv_print(zones);
return 0;
}
-static int help(void) {
-
+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\n"
- " --version Show package version\n"
- " --adjust-system-clock\n"
- " Adjust system clock when changing local RTC mode\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\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 timezone\n"
- " list-timezones Show known timezones\n"
- " set-local-rtc BOOL Control whether RTC is in local time\n"
- " set-ntp BOOL Control whether NTP is enabled\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);
-
- return 0;
}
static int parse_argv(int argc, char *argv[]) {
{ "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 },
- { NULL, 0, NULL, 0 }
+ {}
};
int c;
assert(argc >= 0);
assert(argv);
- while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0) {
+ while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0)
switch (c) {
return -EINVAL;
default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
+ assert_not_reached("Unhandled option");
}
- }
return 1;
}
}
int main(int argc, char *argv[]) {
- int r, ret = EXIT_FAILURE;
- _cleanup_bus_unref_ sd_bus *bus = NULL;
+ _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;
- else if (r == 0) {
- ret = EXIT_SUCCESS;
+ if (r <= 0)
goto finish;
- }
r = bus_open_transport(arg_transport, arg_host, false, &bus);
if (r < 0) {
- log_error("Failed to create bus connection: %s", strerror(-r));
- ret = EXIT_FAILURE;
+ log_error_errno(r, "Failed to create bus connection: %m");
goto finish;
}
r = timedatectl_main(bus, argc, argv);
- ret = r < 0 ? EXIT_FAILURE : r;
finish:
pager_close();
- return ret;
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}