time: support @ syntax for denoting times since the UNIX epoch 1970-1-1

2 files changed, 6 insertions, 4 deletions

diff --git a/src/shared/calendarspec.c b/src/shared/calendarspec.c
index 7075159183..69b7427232 100644
--- a/src/shared/calendarspec.c
+++ b/src/shared/calendarspec.c
@@ -938,7 +938,6 @@ int calendar_spec_next_usec(const CalendarSpec *spec, usec_t usec, usec_t *next)
         if (t == (time_t) -1)
                 return -EINVAL;
 
-
         *next = (usec_t) t * USEC_PER_SEC;
         return 0;
 }
diff --git a/src/shared/time-util.c b/src/shared/time-util.c
index faa3418819..eb5c1ae790 100644
--- a/src/shared/time-util.c
+++ b/src/shared/time-util.c
@@ -432,6 +432,7 @@ int parse_timestamp(const char *t, usec_t *usec) {
          *   tomorrow             (time is set to 00:00:00)
          *   +5min
          *   -5days
+         *   @2147483647          (seconds since epoch)
          *
          */
 
@@ -460,21 +461,23 @@ int parse_timestamp(const char *t, usec_t *usec) {
                 goto finish;
 
         } else if (t[0] == '+') {
-
                 r = parse_sec(t+1, &plus);
                 if (r < 0)
                         return r;
 
                 goto finish;
-        } else if (t[0] == '-') {
 
+        } else if (t[0] == '-') {
                 r = parse_sec(t+1, &minus);
                 if (r < 0)
                         return r;
 
                 goto finish;
 
-        } else if (endswith(t, " ago")) {
+        } else if (t[0] == '@')
+                return parse_sec(t + 1, usec);
+
+        else if (endswith(t, " ago")) {
                 _cleanup_free_ char *z;
 
                 z = strndup(t, strlen(t) - 4);