+ if (_nc_prescreen.use_env) {
+ if (_nc_prescreen.use_tioctl) {
+ /*
+ * If environment variables are used, update them.
+ */
+ if ((sp == 0 || !sp->_filtered) && _nc_getenv_num("LINES") > 0) {
+ _nc_setenv_num("LINES", *linep);
+ }
+ if (_nc_getenv_num("COLUMNS") > 0) {
+ _nc_setenv_num("COLUMNS", *colp);
+ }
+ }
+