0e57c512b20f3e0b107cd7f85f87288743c01eb6
[ncurses.git] / ncurses / tinfo / lib_ttyflags.c
1 /****************************************************************************
2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
3  *                                                                          *
4  * Permission is hereby granted, free of charge, to any person obtaining a  *
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9  * copies of the Software, and to permit persons to whom the Software is    *
10  * furnished to do so, subject to the following conditions:                 *
11  *                                                                          *
12  * The above copyright notice and this permission notice shall be included  *
13  * in all copies or substantial portions of the Software.                   *
14  *                                                                          *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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24  * holders shall not be used in advertising or otherwise to promote the     *
25  * sale, use or other dealings in this Software without prior written       *
26  * authorization.                                                           *
27  ****************************************************************************/
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
41 MODULE_ID("$Id: lib_ttyflags.c,v 1.3 1999/10/22 21:38:55 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
59 int _nc_get_tty_mode(TTY *buf)
60 {
61         if (cur_term == 0
62          || GET_TTY(cur_term->Filedes, buf) != 0)
63                 return(ERR);
64         TR(TRACE_BITS,("_nc_get_tty_mode: %s", _nc_tracebits()));
65         return (OK);
66 }
67
68 int _nc_set_tty_mode(TTY *buf)
69 {
70         if (cur_term == 0
71          || SET_TTY(cur_term->Filedes, buf) != 0)
72                 return(ERR);
73         TR(TRACE_BITS,("_nc_set_tty_mode: %s", _nc_tracebits()));
74         return (OK);
75 }
76
77 int def_shell_mode(void)
78 {
79         T((T_CALLED("def_shell_mode()")));
80
81         /*
82          * Turn off the XTABS bit in the tty structure if it was on.  If XTABS
83          * was on, remove the tab and backtab capabilities.
84          */
85
86         if (_nc_get_tty_mode(&cur_term->Ottyb) != OK)
87                 returnCode(ERR);
88 #ifdef TERMIOS
89         if (cur_term->Ottyb.c_oflag & tabs)
90                 tab = back_tab = NULL;
91 #else
92         if (cur_term->Ottyb.sg_flags & XTABS)
93                 tab = back_tab = NULL;
94 #endif
95         returnCode(OK);
96 }
97
98 int def_prog_mode(void)
99 {
100         T((T_CALLED("def_prog_mode()")));
101
102         if (_nc_get_tty_mode(&cur_term->Nttyb) != OK)
103                 returnCode(ERR);
104 #ifdef TERMIOS
105         cur_term->Nttyb.c_oflag &= ~tabs;
106 #else
107         cur_term->Nttyb.sg_flags &= ~XTABS;
108 #endif
109         returnCode(OK);
110 }
111
112 int reset_prog_mode(void)
113 {
114         T((T_CALLED("reset_prog_mode()")));
115
116         if (cur_term != 0) {
117                 _nc_set_tty_mode(&cur_term->Nttyb);
118                 if (SP) {
119                         if (stdscr && stdscr->_use_keypad)
120                                 _nc_keypad(TRUE);
121                         NC_BUFFERED(TRUE);
122                 }
123                 returnCode(OK);
124         }
125         returnCode(ERR);
126 }
127
128 int reset_shell_mode(void)
129 {
130         T((T_CALLED("reset_shell_mode()")));
131
132         if (cur_term != 0) {
133                 if (SP)
134                 {
135                         _nc_keypad(FALSE);
136                         _nc_flush();
137                         NC_BUFFERED(FALSE);
138                 }
139                 returnCode(_nc_set_tty_mode(&cur_term->Ottyb));
140         }
141         returnCode(ERR);
142 }
143
144 /*
145 **      savetty()  and  resetty()
146 **
147 */
148
149 static TTY   buf;
150
151 int savetty(void)
152 {
153         T((T_CALLED("savetty()")));
154
155         returnCode(_nc_get_tty_mode(&buf));
156 }
157
158 int resetty(void)
159 {
160         T((T_CALLED("resetty()")));
161
162         returnCode(_nc_set_tty_mode(&buf));
163 }