IODC_IOSIZ
char ua_buf[IODC_IOSIZ + IODC_MINIOSIZ];
pdcbuf, dp->last_blk, dp->buf, IODC_IOSIZ,
IODC_IOSIZ)) < 0) {
(u_int)blk - offset, dp->buf, IODC_IOSIZ, IODC_IOSIZ)) < 0) {
blk - offset, IODC_IOSIZ, ret);