fd = STDIN_FILENO;

	for (idx = 1; idx < objc; idx++) {
		obj = objv[idx];
		obj_hash = tuapi_internal_simplehash_obj(obj);

		if (obj_hash == 0xe7a7d65) { /* size */
			continue;
		}

		switch (obj_hash) {
			case 0xe7a7d65: /* size */
				ioctl_ret = ioctl(fd, TIOCGWINSZ, &terminal_size);
				if (ioctl_ret != 0) {
					Tcl_SetObjResult(interp, Tcl_NewStringObj("ioctl failed", -1));

					return(TCL_ERROR);
				}

				if (retobj == NULL) {
					retobj = Tcl_NewObj();
				}

				Tcl_ListObjAppendElement(interp, retobj, Tcl_NewLongObj(terminal_size.ws_row));
				Tcl_ListObjAppendElement(interp, retobj, Tcl_NewLongObj(terminal_size.ws_col));

				break;
			case 0x5bcb0f7: /* -raw */
			case 0x1cb0f7: /* raw */
			case 0xdcb8f56f: /* -echo */
			case 0xcb8f46f: /* echo */
				ioctl_ret = ioctl(fd, TCGETS, &terminal_information);
				if (ioctl_ret != 0) {