return (-1);
}
- rrd_out_file = rrd_open(outfilename, &rrdnew, RRD_CREAT);
+ rrd_out_file = rrd_open(outfilename, &rrdnew, RRD_READWRITE|RRD_CREAT);
if (rrd_out_file == NULL) {
rrd_set_error("Can't create '%s': %s", outfilename,
rrd_strerror(errno));