1 /****************************************************************************
2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
3  *                                                                          *
4  * Permission is hereby granted, free of charge, to any person obtaining a  *
5  * copy of this software and associated documentation files (the            *
6  * "Software"), to deal in the Software without restriction, including      *
7  * without limitation the rights to use, copy, modify, merge, publish,      *
8  * distribute, distribute with modifications, sublicense, and/or sell       *
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.   *
18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22  *                                                                          *
23  * Except as contained in this notice, the name(s) of the above copyright   *
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 }
164