Handle relative time syntax using +<parse_time>.

Example: kadmin mod --pw-expiration-time='+1month 1day'

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@24642 ec53bebd-3082-4978-b11e-865c3cabbd6b

kadmin/util.c

@@ -184,6 +184,18 @@ str2time_t (const char *str, time_t *t)
     memset (&tm, 0, sizeof (tm));
     memset (&tm2, 0, sizeof (tm2));
 
+    while(isspace((unsigned char)*str))
+	str++;
+
+    if (str[0] == '+') {
+	str++;
+	*t = parse_time(str, "month");
+	if (t < 0)
+	    return -1;
+	*t += time(NULL);
+	return 0;
+    }
+
     if(strcasecmp(str, "never") == 0) {
 	*t = 0;
 	return 0;