xref: /illumos-gate/usr/src/lib/libxcurses2/src/libc/xcurses/cbreak.c (revision 1bdd6c0e3710e91cb1f31aa78de33cb638494480)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1995-2000 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /* LINTLIBRARY */
30 
31 /*
32  * cbreak.c
33  *
34  * XCurses Library
35  *
36  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
37  *
38  */
39 
40 #if M_RCSID
41 #ifndef lint
42 static char rcsID[] =
43 "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/"
44 "libxcurses/src/libc/xcurses/rcs/cbreak.c 1.5 1998/06/04 19:55:47 "
45 "cbates Exp $";
46 #endif
47 #endif
48 
49 #include <private.h>
50 
51 int
52 cbreak(void)
53 {
54 	cur_term->_flags &= ~__TERM_HALF_DELAY;
55 
56 	PTERMIOS(_prog)->c_cc[VMIN] = 1;
57 	PTERMIOS(_prog)->c_cc[VTIME] = 0;
58 	PTERMIOS(_prog)->c_lflag &= ~ICANON;
59 
60 	return (__m_tty_set_prog_mode());
61 }
62 
63 int
64 nocbreak(void)
65 {
66 	cur_term->_flags &= ~__TERM_HALF_DELAY;
67 
68 	/*
69 	 * On some systems VMIN and VTIME map to VEOF and VEOL, which
70 	 * means we have to restore them to their original settings.
71 	 */
72 	PTERMIOS(_prog)->c_cc[VEOF] = PTERMIOS(_shell)->c_cc[VEOF];
73 	PTERMIOS(_prog)->c_cc[VEOL] = PTERMIOS(_shell)->c_cc[VEOL];
74 	PTERMIOS(_prog)->c_lflag |= ICANON;
75 
76 	return (__m_tty_set_prog_mode());
77 }
78 
79 /*
80  * Set global timeout value, which overrides individual window timeout
81  * values (I think believe X/Open specified this wrong).
82  */
83 int
84 halfdelay(int tenths)
85 {
86 	cur_term->_flags |= __TERM_HALF_DELAY;
87 
88 	PTERMIOS(_prog)->c_cc[VMIN] = 0;
89 	PTERMIOS(_prog)->c_cc[VTIME] = (tenths > 255) ? 255 : (cc_t)tenths;
90 	PTERMIOS(_prog)->c_lflag &= ~ICANON;
91 
92 	return (__m_tty_set_prog_mode());
93 }
94 
95 int
96 raw(void)
97 {
98 	cur_term->_flags &= ~__TERM_HALF_DELAY;
99 
100 	PTERMIOS(_prog)->c_cc[VMIN] = 1;
101 	PTERMIOS(_prog)->c_cc[VTIME] = 0;
102 	PTERMIOS(_prog)->c_lflag &= ~(ICANON | ISIG);
103 	PTERMIOS(_prog)->c_iflag &= ~IXON;
104 
105 	return (__m_tty_set_prog_mode());
106 }
107 
108 int
109 noraw(void)
110 {
111 	cur_term->_flags &= ~__TERM_HALF_DELAY;
112 
113 	/*
114 	 * On some systems VMIN and VTIME map to VEOF and VEOL, which
115 	 * means we have to restore them to their original settings.
116 	 */
117 	PTERMIOS(_prog)->c_cc[VEOF] = PTERMIOS(_shell)->c_cc[VEOF];
118 	PTERMIOS(_prog)->c_cc[VEOL] = PTERMIOS(_shell)->c_cc[VEOL];
119 	PTERMIOS(_prog)->c_lflag |= ICANON | ISIG;
120 	PTERMIOS(_prog)->c_iflag |= IXON;
121 
122 	return (__m_tty_set_prog_mode());
123 }
124