/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 1997 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1988 AT&T */ /* All Rights Reserved */ /* * University Copyright- Copyright (c) 1982, 1986, 1988 * The Regents of the University of California * All Rights Reserved * * University Acknowledgment- Portions of this document are derived from * software developed by the University of California, Berkeley, and its * contributors. */ #pragma ident "%Z%%M% %I% %E% SMI" /*LINTLIBRARY*/ #include #include "curses_inc.h" /* Place a char onto the beginning of the input queue. */ int ungetch(int ch) { int i = cur_term->_chars_on_queue, j = i - 1; chtype *inputQ = cur_term->_input_queue; /* Place the character at the beg of the Q */ /* * Here is commented out because 'ch' should deal with a single byte * character only. So ISCBIT(ch) is 0 every time. * * register chtype r; * * if (ISCBIT(ch)) { * r = RBYTE(ch); * ch = LBYTE(ch); * -* do the right half first to maintain the byte order *- * if (r != MBIT && ungetch(r) == ERR) * return (ERR); * } */ while (i > 0) inputQ[i--] = inputQ[j--]; cur_term->_ungotten++; inputQ[0] = -ch; cur_term->_chars_on_queue++; return (0); }