lib_ttyflags.c revision 1.4 
1/*	$OpenBSD: lib_ttyflags.c,v 1.4 2001/01/22 18:01:54 millert Exp $	*/
2
3/****************************************************************************
4 * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
5 *                                                                          *
6 * Permission is hereby granted, free of charge, to any person obtaining a  *
7 * copy of this software and associated documentation files (the            *
8 * "Software"), to deal in the Software without restriction, including      *
9 * without limitation the rights to use, copy, modify, merge, publish,      *
10 * distribute, distribute with modifications, sublicense, and/or sell       *
11 * copies of the Software, and to permit persons to whom the Software is    *
12 * furnished to do so, subject to the following conditions:                 *
13 *                                                                          *
14 * The above copyright notice and this permission notice shall be included  *
15 * in all copies or substantial portions of the Software.                   *
16 *                                                                          *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
24 *                                                                          *
25 * Except as contained in this notice, the name(s) of the above copyright   *
26 * holders shall not be used in advertising or otherwise to promote the     *
27 * sale, use or other dealings in this Software without prior written       *
28 * authorization.                                                           *
29 ****************************************************************************/
30
31/*
32 *		def_prog_mode()
33 *		def_shell_mode()
34 *		reset_prog_mode()
35 *		reset_shell_mode()
36 *		savetty()
37 *		resetty()
38 */
39
40#include <curses.priv.h>
41#include <term.h>		/* cur_term */
42
43MODULE_ID("$From: lib_ttyflags.c,v 1.5 2000/12/10 02:55:08 tom Exp $")
44
45#undef tabs
46
47#ifdef TAB3
48# define tabs TAB3
49#else
50# ifdef XTABS
51#  define tabs XTABS
52# else
53#  ifdef OXTABS
54#   define tabs OXTABS
55#  else
56#   define tabs 0
57#  endif
58# endif
59#endif
60
61NCURSES_EXPORT(int)
62_nc_get_tty_mode(TTY * buf)
63{
64    if (cur_term == 0
65	|| GET_TTY(cur_term->Filedes, buf) != 0)
66	return (ERR);
67    TR(TRACE_BITS, ("_nc_get_tty_mode: %s", _nc_tracebits()));
68    return (OK);
69}
70
71NCURSES_EXPORT(int)
72_nc_set_tty_mode(TTY * buf)
73{
74    if (cur_term == 0
75	|| SET_TTY(cur_term->Filedes, buf) != 0)
76	return (ERR);
77    TR(TRACE_BITS, ("_nc_set_tty_mode: %s", _nc_tracebits()));
78    return (OK);
79}
80
81NCURSES_EXPORT(int)
82def_shell_mode(void)
83{
84    T((T_CALLED("def_shell_mode()")));
85
86    /*
87     * Turn off the XTABS bit in the tty structure if it was on.  If XTABS
88     * was on, remove the tab and backtab capabilities.
89     */
90
91    if (_nc_get_tty_mode(&cur_term->Ottyb) != OK)
92	returnCode(ERR);
93#ifdef TERMIOS
94    if (cur_term->Ottyb.c_oflag & tabs)
95	tab = back_tab = NULL;
96#else
97    if (cur_term->Ottyb.sg_flags & XTABS)
98	tab = back_tab = NULL;
99#endif
100    returnCode(OK);
101}
102
103NCURSES_EXPORT(int)
104def_prog_mode(void)
105{
106    T((T_CALLED("def_prog_mode()")));
107
108    if (_nc_get_tty_mode(&cur_term->Nttyb) != OK)
109	returnCode(ERR);
110#ifdef TERMIOS
111    cur_term->Nttyb.c_oflag &= ~tabs;
112#else
113    cur_term->Nttyb.sg_flags &= ~XTABS;
114#endif
115    returnCode(OK);
116}
117
118NCURSES_EXPORT(int)
119reset_prog_mode(void)
120{
121    T((T_CALLED("reset_prog_mode()")));
122
123    if (cur_term != 0) {
124	_nc_set_tty_mode(&cur_term->Nttyb);
125	if (SP) {
126	    if (stdscr && stdscr->_use_keypad)
127		_nc_keypad(TRUE);
128	    NC_BUFFERED(TRUE);
129	}
130	returnCode(OK);
131    }
132    returnCode(ERR);
133}
134
135NCURSES_EXPORT(int)
136reset_shell_mode(void)
137{
138    T((T_CALLED("reset_shell_mode()")));
139
140    if (cur_term != 0) {
141	if (SP) {
142	    _nc_keypad(FALSE);
143	    _nc_flush();
144	    NC_BUFFERED(FALSE);
145	}
146	returnCode(_nc_set_tty_mode(&cur_term->Ottyb));
147    }
148    returnCode(ERR);
149}
150
151/*
152**	savetty()  and  resetty()
153**
154*/
155
156static TTY buf;
157
158NCURSES_EXPORT(int)
159savetty(void)
160{
161    T((T_CALLED("savetty()")));
162
163    returnCode(_nc_get_tty_mode(&buf));
164}
165
166NCURSES_EXPORT(int)
167resetty(void)
168{
169    T((T_CALLED("resetty()")));
170
171    returnCode(_nc_set_tty_mode(&buf));
172}
173