wincred: avoid overwriting configured variables

diff --git a/date.c b/date.c
index f64bbeb8237acceaca565c010fdf50b3385ead8f..e1a2cee5688a64555d7820e8e02e3e86839c9641 100644 (file)
--- a/date.c
+++ b/date.c
@@ -385,7 +385,7 @@ 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;
@@ -696,8 +696,14 @@ 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;
@@ -707,6 +713,28 @@ int parse_date_basic(const char *date, unsigned long *timestamp, int *offset)
        return 0; /* success */
 }
 
+int parse_expiry_date(const char *date, unsigned long *timestamp)
+{
+       int errors = 0;
+
+       if (!strcmp(date, "never") || !strcmp(date, "false"))
+               *timestamp = 0;
+       else if (!strcmp(date, "all") || !strcmp(date, "now"))
+               /*
+                * We take over "now" here, which usually translates
+                * to the current timestamp.  This is because the user
+                * really means to expire everything she has done in
+                * the past, and by definition reflogs are the record
+                * of the past, and there is nothing from the future
+                * to be kept.
+                */
+               *timestamp = ULONG_MAX;
+       else
+               *timestamp = approxidate_careful(date, &errors);
+
+       return errors;
+}
+
 int parse_date(const char *date, char *result, int maxlen)
 {
        unsigned long timestamp;
@@ -881,7 +909,7 @@ static const char *approxidate_alpha(const char *date, struct tm *tm, struct tm
        const char *end = date;
        int i;
 
-       while (isalpha(*++end));
+       while (isalpha(*++end))
                ;
 
        for (i = 0; i < 12; i++) {