ST_OP_WEOF
un->un_lastop = new_lastop = ST_OP_WEOF;
(un->un_lastop == ST_OP_WEOF)) &&
(un->un_lastop != ST_OP_WEOF))) { /* or write filemarks */
((un->un_lastop == ST_OP_WRITE)||(un->un_lastop == ST_OP_WEOF))) ||
((un->un_lastop == ST_OP_WEOF && wfm) ||
if ((un->un_fmneeded > 0) || (un->un_lastop == ST_OP_WEOF)) {
(un->un_lastop == ST_OP_WEOF)) {
un->un_lastop = ST_OP_WEOF;
if ((prev_op == ST_OP_WRITE) || (prev_op == ST_OP_WEOF)) {