X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Ftimedate%2Ftimedatectl.c;h=f5b5f0ca84e9accc702b1a4f8e4164de42ee8bd2;hb=7c2d80944afb4196f2eff614e8da1450dffcbeaa;hp=e94a847bf1be8d16410ad5412648978cbe8ff560;hpb=599659860c770058f2eb04d578c521c16e0b1853;p=elogind.git diff --git a/src/timedate/timedatectl.c b/src/timedate/timedatectl.c index e94a847bf..f5b5f0ca8 100644 --- a/src/timedate/timedatectl.c +++ b/src/timedate/timedatectl.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include @@ -33,8 +34,9 @@ #include "hwclock.h" #include "strv.h" #include "pager.h" +#include "time-dst.h" -static bool arg_fix_system = false; +static bool arg_adjust_system_clock = false; static bool arg_no_pager = false; static enum transport { TRANSPORT_NORMAL, @@ -81,27 +83,55 @@ static bool ntp_synced(void) { return true; } +static const char *jump_str(int delta_minutes, char *s, size_t size) { + if (delta_minutes == 60) + return "one hour forward"; + if (delta_minutes == -60) + return "one hour backwards"; + if (delta_minutes < 0) { + snprintf(s, size, "%i minutes backwards", -delta_minutes); + return s; + } + if (delta_minutes > 0) { + snprintf(s, size, "%i minutes forward", delta_minutes); + return s; + } + return ""; +} + static void print_status_info(StatusInfo *i) { usec_t n; + char a[FORMAT_TIMESTAMP_MAX]; char b[FORMAT_TIMESTAMP_MAX]; + char s[32]; struct tm tm; time_t sec; + char *zc, *zn; + time_t t, tc, tn; + int dn; + bool is_dstc, is_dstn; int r; assert(i); + /* 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"); + unsetenv("TZ"); + } + n = now(CLOCK_REALTIME); sec = (time_t) (n / USEC_PER_SEC); zero(tm); - assert_se(strftime(b, sizeof(b), "%a, %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm)) > 0); - char_array_0(b); - printf(" Local time: %s\n", b); + 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); zero(tm); - assert_se(strftime(b, sizeof(b), "%a, %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm)) > 0); - char_array_0(b); - printf(" Universal time: %s\n", b); + 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); @@ -109,20 +139,62 @@ static void print_status_info(StatusInfo *i) { /* Calculcate the week-day */ mktime(&tm); - assert_se(strftime(b, sizeof(b), "%a, %Y-%m-%d %H:%M:%S", &tm) > 0); - char_array_0(b); - printf(" RTC time: %s\n", b); + assert_se(strftime(a, sizeof(a), "%a %Y-%m-%d %H:%M:%S", &tm) > 0); + char_array_0(a); + printf(" RTC time: %s\n", a); } - printf(" Timezone: %s\n" + 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, yes_no(i->ntp), 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)); + + 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); + + free(zc); + free(zn); + } + if (i->local_rtc) fputs("\n" ANSI_HIGHLIGHT_ON "Warning: The RTC is configured to maintain time in the local time zone. This\n" @@ -302,7 +374,7 @@ static int set_local_rtc(DBusConnection *bus, char **args, unsigned n) { } b = r; - q = arg_fix_system; + q = arg_adjust_system_clock; return bus_method_call_with_reply( bus, @@ -349,17 +421,10 @@ static int set_ntp(DBusConnection *bus, char **args, unsigned n) { DBUS_TYPE_INVALID); } -static int zone_compare(const void *_a, const void *_b) { - const char **a = (const char**) _a, **b = (const char**) _b; - - return strcmp(*a, *b); -} - static int list_timezones(DBusConnection *bus, char **args, unsigned n) { _cleanup_fclose_ FILE *f = NULL; _cleanup_strv_free_ char **zones = NULL; - size_t n_zones; - char **i; + size_t n_zones = 0; assert(args); assert(n == 1); @@ -416,35 +481,34 @@ static int list_timezones(DBusConnection *bus, char **args, unsigned n) { } if (zones) - zones[n_zones] = 0; - - qsort(zones, n_zones, sizeof(char*), zone_compare); + zones[n_zones] = NULL; pager_open_if_enabled(); - STRV_FOREACH(i, zones) - puts(*i); + strv_sort(zones); + strv_print(zones); return 0; } static int help(void) { - printf("%s [OPTIONS...] {COMMAND} ...\n\n" - "Query or control system time and date settings.\n\n" + 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" - " --fix-system Adjust system clock when changing local RTC mode\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\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 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", program_invocation_short_name); return 0; @@ -455,19 +519,19 @@ static int parse_argv(int argc, char *argv[]) { enum { ARG_VERSION = 0x100, ARG_NO_PAGER, - ARG_FIX_SYSTEM, + 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' }, - { "privileged", no_argument, NULL, 'P' }, - { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, - { "fix-system", no_argument, NULL, ARG_FIX_SYSTEM }, - { NULL, 0, NULL, 0 } + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "no-pager", no_argument, NULL, ARG_NO_PAGER }, + { "host", required_argument, NULL, 'H' }, + { "privileged", no_argument, NULL, 'P' }, + { "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; @@ -475,7 +539,7 @@ static int parse_argv(int argc, char *argv[]) { assert(argc >= 0); assert(argv); - while ((c = getopt_long(argc, argv, "+hp:as:H:P", options, NULL)) >= 0) { + while ((c = getopt_long(argc, argv, "+hH:P", options, NULL)) >= 0) { switch (c) { @@ -485,7 +549,6 @@ static int parse_argv(int argc, char *argv[]) { case ARG_VERSION: puts(PACKAGE_STRING); - puts(DISTRIBUTION); puts(SYSTEMD_FEATURES); return 0; @@ -498,8 +561,8 @@ static int parse_argv(int argc, char *argv[]) { arg_host = optarg; break; - case ARG_FIX_SYSTEM: - arg_fix_system = true; + case ARG_ADJUST_SYSTEM_CLOCK: + arg_adjust_system_clock = true; break; case ARG_NO_PAGER: @@ -611,6 +674,7 @@ int main(int argc, char *argv[]) { dbus_error_init(&error); + setlocale(LC_ALL, ""); log_parse_environment(); log_open();