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authorLennart Poettering <lennart@poettering.net>2015-04-02 12:15:53 +0200
committerLennart Poettering <lennart@poettering.net>2015-04-02 12:17:41 +0200
commitd95a74ed1191bb09f5be57b0619d3d77708e019d (patch)
tree52a09c606e810b4925d77e8d338c9400531b6ae2 /src/timedate/timedatectl.c
parentc4f54721175bde35e2051d61d3d23285def9619d (diff)
timedatectl: many fixes
- print runtime warnings with log_warning() - save and restore $TZ properly - Get rid of exit() pseudo error handling - Using time() is OK when connecting to a local container or when showing data about local host, but certainly not for remote hosts.
Diffstat (limited to 'src/timedate/timedatectl.c')
-rw-r--r--src/timedate/timedatectl.c37
1 files changed, 23 insertions, 14 deletions
diff --git a/src/timedate/timedatectl.c b/src/timedate/timedatectl.c
index 1d10c195c4..89913cc4ed 100644
--- a/src/timedate/timedatectl.c
+++ b/src/timedate/timedatectl.c
@@ -77,31 +77,30 @@ static void print_status_info(const StatusInfo *i) {
struct tm tm;
time_t sec;
bool have_time = false;
+ const char *old_tz = NULL, *tz;
int r;
assert(i);
- /* Enforce the values of /etc/localtime */
- if (getenv("TZ")) {
- fprintf(stderr, "Warning: Ignoring the TZ variable.\n\n");
- unsetenv("TZ");
- }
+ /* Save the old $TZ */
+ tz = getenv("TZ");
+ if (tz)
+ old_tz = strdupa(tz);
- r = setenv("TZ", i->timezone, false);
- if (r < 0) {
- log_error_errno(errno, "Failed to set TZ environment variable: %m");
- exit(EXIT_FAILURE);
- }
- tzset();
+ /* Set the new $TZ */
+ if (setenv("TZ", 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_REMOTE, BUS_TRANSPORT_MACHINE)) {
+ } else if (IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) {
sec = time(NULL);
have_time = true;
} else
- fprintf(stderr, "Warning: Could not get time from timedated and not operating locally.\n\n");
+ 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));
@@ -117,7 +116,7 @@ static void print_status_info(const StatusInfo *i) {
if (i->rtc_time > 0) {
time_t rtc_sec;
- rtc_sec = (time_t)(i->rtc_time / USEC_PER_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
@@ -126,6 +125,16 @@ static void print_status_info(const StatusInfo *i) {
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"
" NTP enabled: %s\n"
"NTP synchronized: %s\n"