| /*** |
| This file is part of systemd. |
| |
| Copyright 2011 Lennart Poettering |
| |
| 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 <errno.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include "sd-bus.h" |
| #include "sd-event.h" |
| #include "sd-messages.h" |
| |
| #include "alloc-util.h" |
| #include "bus-common-errors.h" |
| #include "bus-error.h" |
| #include "bus-util.h" |
| #include "clock-util.h" |
| #include "def.h" |
| #include "fileio-label.h" |
| #include "fs-util.h" |
| #include "path-util.h" |
| #include "selinux-util.h" |
| #include "strv.h" |
| #include "user-util.h" |
| #include "util.h" |
| |
| #define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n" |
| #define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n" |
| |
| static BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map timedated_errors[] = { |
| SD_BUS_ERROR_MAP("org.freedesktop.timedate1.NoNTPSupport", EOPNOTSUPP), |
| SD_BUS_ERROR_MAP_END |
| }; |
| |
| typedef struct Context { |
| char *zone; |
| bool local_rtc; |
| bool can_ntp; |
| bool use_ntp; |
| Hashmap *polkit_registry; |
| } Context; |
| |
| static void context_free(Context *c) { |
| assert(c); |
| |
| free(c->zone); |
| bus_verify_polkit_async_registry_free(c->polkit_registry); |
| } |
| |
| static int context_read_data(Context *c) { |
| _cleanup_free_ char *t = NULL; |
| int r; |
| |
| assert(c); |
| |
| r = get_timezone(&t); |
| if (r == -EINVAL) |
| log_warning_errno(r, "/etc/localtime should be a symbolic link to a time zone data file in /usr/share/zoneinfo/."); |
| else if (r < 0) |
| log_warning_errno(r, "Failed to get target of /etc/localtime: %m"); |
| |
| free(c->zone); |
| c->zone = t; |
| t = NULL; |
| |
| c->local_rtc = clock_is_localtime(NULL) > 0; |
| |
| return 0; |
| } |
| |
| static int context_write_data_timezone(Context *c) { |
| _cleanup_free_ char *p = NULL; |
| int r = 0; |
| |
| assert(c); |
| |
| if (isempty(c->zone)) { |
| if (unlink("/etc/localtime") < 0 && errno != ENOENT) |
| r = -errno; |
| |
| return r; |
| } |
| |
| p = strappend("../usr/share/zoneinfo/", c->zone); |
| if (!p) |
| return log_oom(); |
| |
| r = symlink_atomic(p, "/etc/localtime"); |
| if (r < 0) |
| return r; |
| |
| return 0; |
| } |
| |
| static int context_write_data_local_rtc(Context *c) { |
| int r; |
| _cleanup_free_ char *s = NULL, *w = NULL; |
| |
| assert(c); |
| |
| r = read_full_file("/etc/adjtime", &s, NULL); |
| if (r < 0) { |
| if (r != -ENOENT) |
| return r; |
| |
| if (!c->local_rtc) |
| return 0; |
| |
| w = strdup(NULL_ADJTIME_LOCAL); |
| if (!w) |
| return -ENOMEM; |
| } else { |
| char *p; |
| const char *e = "\n"; /* default if there is less than 3 lines */ |
| const char *prepend = ""; |
| size_t a, b; |
| |
| p = strchrnul(s, '\n'); |
| if (*p == '\0') |
| /* only one line, no \n terminator */ |
| prepend = "\n0\n"; |
| else if (p[1] == '\0') { |
| /* only one line, with \n terminator */ |
| ++p; |
| prepend = "0\n"; |
| } else { |
| p = strchr(p+1, '\n'); |
| if (!p) { |
| /* only two lines, no \n terminator */ |
| prepend = "\n"; |
| p = s + strlen(s); |
| } else { |
| char *end; |
| /* third line might have a \n terminator or not */ |
| p++; |
| end = strchr(p, '\n'); |
| /* if we actually have a fourth line, use that as suffix "e", otherwise the default \n */ |
| if (end) |
| e = end; |
| } |
| } |
| |
| a = p - s; |
| b = strlen(e); |
| |
| w = new(char, a + (c->local_rtc ? 5 : 3) + strlen(prepend) + b + 1); |
| if (!w) |
| return -ENOMEM; |
| |
| *(char*) mempcpy(stpcpy(stpcpy(mempcpy(w, s, a), prepend), c->local_rtc ? "LOCAL" : "UTC"), e, b) = 0; |
| |
| if (streq(w, NULL_ADJTIME_UTC)) { |
| if (unlink("/etc/adjtime") < 0) |
| if (errno != ENOENT) |
| return -errno; |
| |
| return 0; |
| } |
| } |
| |
| mac_selinux_init(); |
| return write_string_file_atomic_label("/etc/adjtime", w); |
| } |
| |
| static int context_read_ntp(Context *c, sd_bus *bus) { |
| _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| const char *s; |
| int r; |
| |
| assert(c); |
| assert(bus); |
| |
| r = sd_bus_call_method( |
| bus, |
| "org.freedesktop.systemd1", |
| "/org/freedesktop/systemd1", |
| "org.freedesktop.systemd1.Manager", |
| "GetUnitFileState", |
| &error, |
| &reply, |
| "s", |
| "systemd-timesyncd.service"); |
| |
| if (r < 0) { |
| if (sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND) || |
| sd_bus_error_has_name(&error, "org.freedesktop.systemd1.LoadFailed") || |
| sd_bus_error_has_name(&error, "org.freedesktop.systemd1.NoSuchUnit")) |
| return 0; |
| |
| return r; |
| } |
| |
| r = sd_bus_message_read(reply, "s", &s); |
| if (r < 0) |
| return r; |
| |
| c->can_ntp = true; |
| c->use_ntp = STR_IN_SET(s, "enabled", "enabled-runtime"); |
| |
| return 0; |
| } |
| |
| static int context_start_ntp(sd_bus *bus, sd_bus_error *error, bool enabled) { |
| int r; |
| |
| assert(bus); |
| assert(error); |
| |
| r = sd_bus_call_method( |
| bus, |
| "org.freedesktop.systemd1", |
| "/org/freedesktop/systemd1", |
| "org.freedesktop.systemd1.Manager", |
| enabled ? "StartUnit" : "StopUnit", |
| error, |
| NULL, |
| "ss", |
| "systemd-timesyncd.service", |
| "replace"); |
| if (r < 0) { |
| if (sd_bus_error_has_name(error, SD_BUS_ERROR_FILE_NOT_FOUND) || |
| sd_bus_error_has_name(error, "org.freedesktop.systemd1.LoadFailed") || |
| sd_bus_error_has_name(error, "org.freedesktop.systemd1.NoSuchUnit")) |
| return sd_bus_error_set_const(error, "org.freedesktop.timedate1.NoNTPSupport", "NTP not supported."); |
| |
| return r; |
| } |
| |
| return 0; |
| } |
| |
| static int context_enable_ntp(sd_bus *bus, sd_bus_error *error, bool enabled) { |
| int r; |
| |
| assert(bus); |
| assert(error); |
| |
| if (enabled) |
| r = sd_bus_call_method( |
| bus, |
| "org.freedesktop.systemd1", |
| "/org/freedesktop/systemd1", |
| "org.freedesktop.systemd1.Manager", |
| "EnableUnitFiles", |
| error, |
| NULL, |
| "asbb", 1, |
| "systemd-timesyncd.service", |
| false, true); |
| else |
| r = sd_bus_call_method( |
| bus, |
| "org.freedesktop.systemd1", |
| "/org/freedesktop/systemd1", |
| "org.freedesktop.systemd1.Manager", |
| "DisableUnitFiles", |
| error, |
| NULL, |
| "asb", 1, |
| "systemd-timesyncd.service", |
| false); |
| |
| if (r < 0) { |
| if (sd_bus_error_has_name(error, SD_BUS_ERROR_FILE_NOT_FOUND)) |
| return sd_bus_error_set_const(error, "org.freedesktop.timedate1.NoNTPSupport", "NTP not supported."); |
| |
| return r; |
| } |
| |
| r = sd_bus_call_method( |
| bus, |
| "org.freedesktop.systemd1", |
| "/org/freedesktop/systemd1", |
| "org.freedesktop.systemd1.Manager", |
| "Reload", |
| error, |
| NULL, |
| NULL); |
| if (r < 0) |
| return r; |
| |
| return 0; |
| } |
| |
| static int property_get_rtc_time( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| struct tm tm; |
| usec_t t; |
| int r; |
| |
| zero(tm); |
| r = clock_get_hwclock(&tm); |
| if (r == -EBUSY) { |
| log_warning("/dev/rtc is busy. Is somebody keeping it open continuously? That's not a good idea... Returning a bogus RTC timestamp."); |
| t = 0; |
| } else if (r == -ENOENT) { |
| log_debug("/dev/rtc not found."); |
| t = 0; /* no RTC found */ |
| } else if (r < 0) |
| return sd_bus_error_set_errnof(error, r, "Failed to read RTC: %m"); |
| else |
| t = (usec_t) timegm(&tm) * USEC_PER_SEC; |
| |
| return sd_bus_message_append(reply, "t", t); |
| } |
| |
| static int property_get_time( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| return sd_bus_message_append(reply, "t", now(CLOCK_REALTIME)); |
| } |
| |
| static int property_get_ntp_sync( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| return sd_bus_message_append(reply, "b", ntp_synced()); |
| } |
| |
| static int method_set_timezone(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| Context *c = userdata; |
| const char *z; |
| int interactive; |
| char *t; |
| int r; |
| |
| assert(m); |
| assert(c); |
| |
| r = sd_bus_message_read(m, "sb", &z, &interactive); |
| if (r < 0) |
| return r; |
| |
| if (!timezone_is_valid(z)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid time zone '%s'", z); |
| |
| if (streq_ptr(z, c->zone)) |
| return sd_bus_reply_method_return(m, NULL); |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_TIME, |
| "org.freedesktop.timedate1.set-timezone", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &c->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| t = strdup(z); |
| if (!t) |
| return -ENOMEM; |
| |
| free(c->zone); |
| c->zone = t; |
| |
| /* 1. Write new configuration file */ |
| r = context_write_data_timezone(c); |
| if (r < 0) { |
| log_error_errno(r, "Failed to set time zone: %m"); |
| return sd_bus_error_set_errnof(error, r, "Failed to set time zone: %m"); |
| } |
| |
| /* 2. Tell the kernel our timezone */ |
| clock_set_timezone(NULL); |
| |
| if (c->local_rtc) { |
| struct timespec ts; |
| struct tm *tm; |
| |
| /* 3. Sync RTC from system clock, with the new delta */ |
| assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0); |
| assert_se(tm = localtime(&ts.tv_sec)); |
| clock_set_hwclock(tm); |
| } |
| |
| log_struct(LOG_INFO, |
| LOG_MESSAGE_ID(SD_MESSAGE_TIMEZONE_CHANGE), |
| "TIMEZONE=%s", c->zone, |
| LOG_MESSAGE("Changed time zone to '%s'.", c->zone), |
| NULL); |
| |
| (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "Timezone", NULL); |
| |
| return sd_bus_reply_method_return(m, NULL); |
| } |
| |
| static int method_set_local_rtc(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| int lrtc, fix_system, interactive; |
| Context *c = userdata; |
| struct timespec ts; |
| int r; |
| |
| assert(m); |
| assert(c); |
| |
| r = sd_bus_message_read(m, "bbb", &lrtc, &fix_system, &interactive); |
| if (r < 0) |
| return r; |
| |
| if (lrtc == c->local_rtc) |
| return sd_bus_reply_method_return(m, NULL); |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_TIME, |
| "org.freedesktop.timedate1.set-local-rtc", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &c->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; |
| |
| c->local_rtc = lrtc; |
| |
| /* 1. Write new configuration file */ |
| r = context_write_data_local_rtc(c); |
| if (r < 0) { |
| log_error_errno(r, "Failed to set RTC to local/UTC: %m"); |
| return sd_bus_error_set_errnof(error, r, "Failed to set RTC to local/UTC: %m"); |
| } |
| |
| /* 2. Tell the kernel our timezone */ |
| clock_set_timezone(NULL); |
| |
| /* 3. Synchronize clocks */ |
| assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0); |
| |
| if (fix_system) { |
| struct tm tm; |
| |
| /* Sync system clock from RTC; first, |
| * initialize the timezone fields of |
| * struct tm. */ |
| if (c->local_rtc) |
| tm = *localtime(&ts.tv_sec); |
| else |
| tm = *gmtime(&ts.tv_sec); |
| |
| /* Override the main fields of |
| * struct tm, but not the timezone |
| * fields */ |
| if (clock_get_hwclock(&tm) >= 0) { |
| |
| /* And set the system clock |
| * with this */ |
| if (c->local_rtc) |
| ts.tv_sec = mktime(&tm); |
| else |
| ts.tv_sec = timegm(&tm); |
| |
| clock_settime(CLOCK_REALTIME, &ts); |
| } |
| |
| } else { |
| struct tm *tm; |
| |
| /* Sync RTC from system clock */ |
| if (c->local_rtc) |
| tm = localtime(&ts.tv_sec); |
| else |
| tm = gmtime(&ts.tv_sec); |
| |
| clock_set_hwclock(tm); |
| } |
| |
| log_info("RTC configured to %s time.", c->local_rtc ? "local" : "UTC"); |
| |
| (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "LocalRTC", NULL); |
| |
| return sd_bus_reply_method_return(m, NULL); |
| } |
| |
| static int method_set_time(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| int relative, interactive; |
| Context *c = userdata; |
| int64_t utc; |
| struct timespec ts; |
| usec_t start; |
| struct tm* tm; |
| int r; |
| |
| assert(m); |
| assert(c); |
| |
| if (c->use_ntp) |
| return sd_bus_error_setf(error, BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED, "Automatic time synchronization is enabled"); |
| |
| /* this only gets used if dbus does not provide a timestamp */ |
| start = now(CLOCK_MONOTONIC); |
| |
| r = sd_bus_message_read(m, "xbb", &utc, &relative, &interactive); |
| if (r < 0) |
| return r; |
| |
| if (!relative && utc <= 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid absolute time"); |
| |
| if (relative && utc == 0) |
| return sd_bus_reply_method_return(m, NULL); |
| |
| if (relative) { |
| usec_t n, x; |
| |
| n = now(CLOCK_REALTIME); |
| x = n + utc; |
| |
| if ((utc > 0 && x < n) || |
| (utc < 0 && x > n)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Time value overflow"); |
| |
| timespec_store(&ts, x); |
| } else |
| timespec_store(&ts, (usec_t) utc); |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_TIME, |
| "org.freedesktop.timedate1.set-time", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &c->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; |
| |
| /* adjust ts for time spent in program */ |
| r = sd_bus_message_get_monotonic_usec(m, &start); |
| /* when sd_bus_message_get_monotonic_usec() returns -ENODATA it does not modify &start */ |
| if (r < 0 && r != -ENODATA) |
| return r; |
| |
| timespec_store(&ts, timespec_load(&ts) + (now(CLOCK_MONOTONIC) - start)); |
| |
| /* Set system clock */ |
| if (clock_settime(CLOCK_REALTIME, &ts) < 0) { |
| log_error_errno(errno, "Failed to set local time: %m"); |
| return sd_bus_error_set_errnof(error, errno, "Failed to set local time: %m"); |
| } |
| |
| /* Sync down to RTC */ |
| if (c->local_rtc) |
| tm = localtime(&ts.tv_sec); |
| else |
| tm = gmtime(&ts.tv_sec); |
| clock_set_hwclock(tm); |
| |
| log_struct(LOG_INFO, |
| LOG_MESSAGE_ID(SD_MESSAGE_TIME_CHANGE), |
| "REALTIME="USEC_FMT, timespec_load(&ts), |
| LOG_MESSAGE("Changed local time to %s", ctime(&ts.tv_sec)), |
| NULL); |
| |
| return sd_bus_reply_method_return(m, NULL); |
| } |
| |
| static int method_set_ntp(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| int enabled, interactive; |
| Context *c = userdata; |
| int r; |
| |
| assert(m); |
| assert(c); |
| |
| r = sd_bus_message_read(m, "bb", &enabled, &interactive); |
| if (r < 0) |
| return r; |
| |
| if ((bool)enabled == c->use_ntp) |
| return sd_bus_reply_method_return(m, NULL); |
| |
| r = bus_verify_polkit_async( |
| m, |
| CAP_SYS_TIME, |
| "org.freedesktop.timedate1.set-ntp", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &c->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; |
| |
| r = context_enable_ntp(sd_bus_message_get_bus(m), error, enabled); |
| if (r < 0) |
| return r; |
| |
| r = context_start_ntp(sd_bus_message_get_bus(m), error, enabled); |
| if (r < 0) |
| return r; |
| |
| c->use_ntp = enabled; |
| log_info("Set NTP to %s", enabled ? "enabled" : "disabled"); |
| |
| (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "NTP", NULL); |
| |
| return sd_bus_reply_method_return(m, NULL); |
| } |
| |
| static const sd_bus_vtable timedate_vtable[] = { |
| SD_BUS_VTABLE_START(0), |
| SD_BUS_PROPERTY("Timezone", "s", NULL, offsetof(Context, zone), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("LocalRTC", "b", bus_property_get_bool, offsetof(Context, local_rtc), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("CanNTP", "b", bus_property_get_bool, offsetof(Context, can_ntp), 0), |
| SD_BUS_PROPERTY("NTP", "b", bus_property_get_bool, offsetof(Context, use_ntp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("NTPSynchronized", "b", property_get_ntp_sync, 0, 0), |
| SD_BUS_PROPERTY("TimeUSec", "t", property_get_time, 0, 0), |
| SD_BUS_PROPERTY("RTCTimeUSec", "t", property_get_rtc_time, 0, 0), |
| SD_BUS_METHOD("SetTime", "xbb", NULL, method_set_time, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("SetTimezone", "sb", NULL, method_set_timezone, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("SetLocalRTC", "bbb", NULL, method_set_local_rtc, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("SetNTP", "bb", NULL, method_set_ntp, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_VTABLE_END, |
| }; |
| |
| static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) { |
| _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
| int r; |
| |
| assert(c); |
| assert(event); |
| assert(_bus); |
| |
| r = sd_bus_default_system(&bus); |
| if (r < 0) |
| return log_error_errno(r, "Failed to get system bus connection: %m"); |
| |
| r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/timedate1", "org.freedesktop.timedate1", timedate_vtable, c); |
| if (r < 0) |
| return log_error_errno(r, "Failed to register object: %m"); |
| |
| r = sd_bus_request_name(bus, "org.freedesktop.timedate1", 0); |
| if (r < 0) |
| return log_error_errno(r, "Failed to register name: %m"); |
| |
| r = sd_bus_attach_event(bus, event, 0); |
| if (r < 0) |
| return log_error_errno(r, "Failed to attach bus to event loop: %m"); |
| |
| *_bus = bus; |
| bus = NULL; |
| |
| return 0; |
| } |
| |
| int main(int argc, char *argv[]) { |
| Context context = {}; |
| _cleanup_(sd_event_unrefp) sd_event *event = NULL; |
| _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
| int r; |
| |
| log_set_target(LOG_TARGET_AUTO); |
| log_parse_environment(); |
| log_open(); |
| |
| umask(0022); |
| |
| if (argc != 1) { |
| log_error("This program takes no arguments."); |
| r = -EINVAL; |
| goto finish; |
| } |
| |
| r = sd_event_default(&event); |
| if (r < 0) { |
| log_error_errno(r, "Failed to allocate event loop: %m"); |
| goto finish; |
| } |
| |
| sd_event_set_watchdog(event, true); |
| |
| r = connect_bus(&context, event, &bus); |
| if (r < 0) |
| goto finish; |
| |
| (void) sd_bus_negotiate_timestamp(bus, true); |
| |
| r = context_read_data(&context); |
| if (r < 0) { |
| log_error_errno(r, "Failed to read time zone data: %m"); |
| goto finish; |
| } |
| |
| r = context_read_ntp(&context, bus); |
| if (r < 0) { |
| log_error_errno(r, "Failed to determine whether NTP is enabled: %m"); |
| goto finish; |
| } |
| |
| r = bus_event_loop_with_idle(event, bus, "org.freedesktop.timedate1", DEFAULT_EXIT_USEC, NULL, NULL); |
| if (r < 0) { |
| log_error_errno(r, "Failed to run event loop: %m"); |
| goto finish; |
| } |
| |
| finish: |
| context_free(&context); |
| |
| return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
| } |