lib_ttyflags.c revision 97049 
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2 * Copyright (c) 1998,2000,2001 Free Software Foundation, Inc.              *
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28
29/*
30 *		def_prog_mode()
31 *		def_shell_mode()
32 *		reset_prog_mode()
33 *		reset_shell_mode()
34 *		savetty()
35 *		resetty()
36 */
37
38#include <curses.priv.h>
39#include <term.h>		/* cur_term */
40
41MODULE_ID("$Id: lib_ttyflags.c,v 1.6 2001/12/16 01:19:01 tom Exp $")
42
43#undef tabs
44
45#ifdef TAB3
46# define tabs TAB3
47#else
48# ifdef XTABS
49#  define tabs XTABS
50# else
51#  ifdef OXTABS
52#   define tabs OXTABS
53#  else
54#   define tabs 0
55#  endif
56# endif
57#endif
58
59NCURSES_EXPORT(int)
60_nc_get_tty_mode(TTY * buf)
61{
62    if (cur_term == 0
63	|| GET_TTY(cur_term->Filedes, buf) != 0)
64	return (ERR);
65    TR(TRACE_BITS, ("_nc_get_tty_mode: %s", _nc_tracebits()));
66    return (OK);
67}
68
69NCURSES_EXPORT(int)
70_nc_set_tty_mode(TTY * buf)
71{
72    if (cur_term == 0
73	|| SET_TTY(cur_term->Filedes, buf) != 0)
74	return (ERR);
75    TR(TRACE_BITS, ("_nc_set_tty_mode: %s", _nc_tracebits()));
76    return (OK);
77}
78
79NCURSES_EXPORT(int)
80def_shell_mode(void)
81{
82    T((T_CALLED("def_shell_mode()")));
83
84    /*
85     * Turn off the XTABS bit in the tty structure if it was on.  If XTABS
86     * was on, remove the tab and backtab capabilities.
87     */
88
89    if (_nc_get_tty_mode(&cur_term->Ottyb) != OK)
90	returnCode(ERR);
91#ifdef TERMIOS
92    if (cur_term->Ottyb.c_oflag & tabs)
93	tab = back_tab = NULL;
94#else
95    if (cur_term->Ottyb.sg_flags & XTABS)
96	tab = back_tab = NULL;
97#endif
98    returnCode(OK);
99}
100
101NCURSES_EXPORT(int)
102def_prog_mode(void)
103{
104    T((T_CALLED("def_prog_mode()")));
105
106    if (_nc_get_tty_mode(&cur_term->Nttyb) != OK)
107	returnCode(ERR);
108#ifdef TERMIOS
109    cur_term->Nttyb.c_oflag &= ~tabs;
110#else
111    cur_term->Nttyb.sg_flags &= ~XTABS;
112#endif
113    returnCode(OK);
114}
115
116NCURSES_EXPORT(int)
117reset_prog_mode(void)
118{
119    T((T_CALLED("reset_prog_mode()")));
120
121    if (cur_term != 0) {
122	_nc_set_tty_mode(&cur_term->Nttyb);
123	if (SP) {
124	    if (SP->_keypad_on)
125		_nc_keypad(TRUE);
126	    NC_BUFFERED(TRUE);
127	}
128	returnCode(OK);
129    }
130    returnCode(ERR);
131}
132
133NCURSES_EXPORT(int)
134reset_shell_mode(void)
135{
136    T((T_CALLED("reset_shell_mode()")));
137
138    if (cur_term != 0) {
139	if (SP) {
140	    _nc_keypad(FALSE);
141	    _nc_flush();
142	    NC_BUFFERED(FALSE);
143	}
144	returnCode(_nc_set_tty_mode(&cur_term->Ottyb));
145    }
146    returnCode(ERR);
147}
148
149/*
150**	savetty()  and  resetty()
151**
152*/
153
154static TTY buf;
155
156NCURSES_EXPORT(int)
157savetty(void)
158{
159    T((T_CALLED("savetty()")));
160
161    returnCode(_nc_get_tty_mode(&buf));
162}
163
164NCURSES_EXPORT(int)
165resetty(void)
166{
167    T((T_CALLED("resetty()")));
168
169    returnCode(_nc_set_tty_mode(&buf));
170}
171