builtin/help.c: add --guide option

diff --git a/date.c b/date.c
index 57331ed406e2391e0a2bf327fbb86d3b62012324..df20d0ba1d9c5d9fa03316968c1b7038659add05 100644 (file)
--- a/date.c
+++ b/date.c
@@ -383,7 +383,7 @@ static int is_date(int year, int month, int day, struct tm *now_tm, time_t now,
                 * sense to specify timestamp way into the future.  Make
                 * sure it is not later than ten days from now...
                 */
-               if (now + 10*24*3600 < specified)
+               if ((specified != -1) && (now + 10*24*3600 < specified))
                        return 0;
                tm->tm_mon = r->tm_mon;
                tm->tm_mday = r->tm_mday;
@@ -694,8 +694,14 @@ int parse_date_basic(const char *date, unsigned long *timestamp, int *offset)
 
        /* mktime uses local timezone */
        *timestamp = tm_to_time_t(&tm);
-       if (*offset == -1)
-               *offset = ((time_t)*timestamp - mktime(&tm)) / 60;
+       if (*offset == -1) {
+               time_t temp_time = mktime(&tm);
+               if ((time_t)*timestamp > temp_time) {
+                       *offset = ((time_t)*timestamp - temp_time) / 60;
+               } else {
+                       *offset = -(int)((temp_time - (time_t)*timestamp) / 60);
+               }
+       }
 
        if (*timestamp == -1)
                return -1;