Patch from Fillod Stephane:

* The "rdate.patch" file makes rdate to NOT settimeofday if the date to be
set equals current date. This prevents the system from experiencing nasty time
discontinuities caused by sub-second changes, with a protocol that has only
over second resolution. Depending on your taste, the "fprintf(stderr..." may be
removed.

1 files changed, 8 insertions, 2 deletions

diff --git a/util-linux/rdate.c b/util-linux/rdate.c
index c9a7ffeab..0b5f8e460 100644
--- a/util-linux/rdate.c
+++ b/util-linux/rdate.c
@@ -103,8 +103,14 @@ int rdate_main(int argc, char **argv)
         remote_time = askremotedate(argv[optind]);
 
         if (setdate) {
-                if (stime(&remote_time) < 0)
-                        bb_perror_msg_and_die("Could not set time of day");
+                time_t current_time;
+
+                time(&current_time);
+                if (current_time == remote_time)
+                        bb_error_msg("Current time matches remote time.");
+                else
+                        if (stime(&remote_time) < 0)
+                                bb_perror_msg_and_die("Could not set time of day");
         }
 
         if (printdate)