timedated: expose time and NTP sync flag via the bus

This way, timedatectl can be run over the network and determine all
properties correctly from the server rather than the client.

2 files changed, 15 insertions, 0 deletions

diff --git a/src/shared/time-util.c b/src/shared/time-util.c
index 860be61e8b..4b4cd7a270 100644
--- a/src/shared/time-util.c
+++ b/src/shared/time-util.c
@@ -21,6 +21,7 @@
 
 #include <time.h>
 #include <string.h>
+#include <sys/timex.h>
 
 #include "util.h"
 #include "time-util.h"
@@ -792,3 +793,15 @@ int parse_nsec(const char *t, nsec_t *nsec) {
 
         return 0;
 }
+
+bool ntp_synced(void) {
+        struct timex txc = {};
+
+        if (adjtimex(&txc) < 0)
+                return false;
+
+        if (txc.status & STA_UNSYNC)
+                return false;
+
+        return true;
+}
diff --git a/src/shared/time-util.h b/src/shared/time-util.h
index 7660fe1872..a51317dbd6 100644
--- a/src/shared/time-util.h
+++ b/src/shared/time-util.h
@@ -84,3 +84,5 @@ int parse_timestamp(const char *t, usec_t *usec);
 
 int parse_sec(const char *t, usec_t *usec);
 int parse_nsec(const char *t, nsec_t *nsec);
+
+bool ntp_synced(void);