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; bool have_time = false; _cleanup_free_ char *zc = NULL, *zn = NULL; time_t t, tc, tn; int dn = 0; bool is_dstc = false, is_dstn = false; int r; assert(i); /* Enforce the values of /etc/localtime */ if (getenv("TZ")) { fprintf(stderr, "Warning: Ignoring the TZ variable. Reading the system's time zone setting only.\n\n"); unsetenv("TZ"); } 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"); 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); 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); } 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); zero(tm); 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(a, sizeof(a), "%Z, %z", localtime_r(&sec, &tm)) > 0); char_array_0(a); } 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)); 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 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(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(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) { /* Calculcate the week-day */ mktime(&tm); 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); } zero(tm); assert_se(strftime(a, sizeof(a), "%z", localtime_r(&sec, &tm)) > 0); char_array_0(a); printf(" Timezone: %s\n" " UTC offset: %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: %s → %s, DST became %s\n" " %s\n" " %s\n", strna(zn), strna(zc), is_dstc ? "active" : "inactive", 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: %s → %s, DST will become %s\n" " the clock will jump %s\n" " %s\n" " %s\n", strna(zc), strna(zn), is_dstn ? "active" : "inactive", 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" " 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); }