+struct graph_data_s
+{
+ str_array_t *args;
+ rrd_info_t *info;
+ time_t mtime;
+ time_t expires;
+ long now;
+ long begin;
+ long end;
+};
+typedef struct graph_data_s graph_data_t;
+
+static int get_time_args (graph_data_t *data) /* {{{ */
+{
+ const char *begin_str;
+ const char *end_str;
+ long now;
+ long begin;
+ long end;
+ char *endptr;
+ long tmp;
+
+ begin_str = param ("begin");
+ end_str = param ("end");
+
+ now = (long) time (NULL);
+ data->now = now;
+ data->begin = now - 86400;
+ data->end = now;
+
+ if (begin_str != NULL)
+ {
+ endptr = NULL;
+ errno = 0;
+ tmp = strtol (begin_str, &endptr, /* base = */ 0);
+ if ((endptr == begin_str) || (errno != 0))
+ return (-1);
+ if (tmp <= 0)
+ begin = now + tmp;
+ else
+ begin = tmp;
+ }
+ else /* if (begin_str == NULL) */
+ {
+ begin = now - 86400;
+ }
+
+ if (end_str != NULL)
+ {
+ endptr = NULL;
+ errno = 0;
+ tmp = strtol (end_str, &endptr, /* base = */ 0);
+ if ((endptr == end_str) || (errno != 0))
+ return (-1);
+ end = tmp;
+ if (tmp <= 0)
+ end = now + tmp;
+ else
+ end = tmp;
+ }
+ else /* if (end_str == NULL) */
+ {
+ end = now;
+ }
+
+ if (begin == end)
+ return (-1);
+
+ if (begin > end)
+ {
+ tmp = begin;
+ begin = end;
+ end = tmp;
+ }
+
+ data->begin = begin;
+ data->end = end;
+
+ array_append (data->args, "-s");
+ array_append_format (data->args, "%li", begin);
+ array_append (data->args, "-e");
+ array_append_format (data->args, "%li", end);
+
+ return (0);
+} /* }}} int get_time_args */
+