1/* $Header: /src/pub/tcsh/tc.disc.c,v 3.13 2002/07/06 22:28:13 christos Exp $ */
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| 1/* $Header: /src/pub/tcsh/tc.disc.c,v 3.15 2004/11/23 02:10:49 christos Exp $ */ |
2/*
3 * tc.disc.c: Functions to set/clear line disciplines
4 *
5 */
6/*-
7 * Copyright (c) 1980, 1991 The Regents of the University of California.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34#include "sh.h"
35
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36RCSID("$Id: tc.disc.c,v 3.13 2002/07/06 22:28:13 christos Exp $")
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| 36RCSID("$Id: tc.disc.c,v 3.15 2004/11/23 02:10:49 christos Exp $") |
37
38#ifdef OREO
39#include <compat.h>
40#endif /* OREO */
41
42#include "ed.h"
43
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44static bool add_discipline = 0; /* Did we add a line discipline */
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| 44static int add_discipline = 0; /* Did we add a line discipline */ |
45
46#if defined(IRIS4D) || defined(OREO) || defined(sonyrisc)
47# define HAVE_DISC
48# ifndef POSIX
49static struct termio otermiob;
50# else
51static struct termios otermiob;
52# endif /* POSIX */
53#endif /* IRIS4D || OREO */
54
55#ifdef _IBMR2
56# define HAVE_DISC
57char strPOSIX[] = "posix";
58#endif /* _IBMR2 */
59
60#if !defined(HAVE_DISC) && defined(TIOCGETD) && defined(NTTYDISC)
61static int oldisc;
62#endif /* !HAVE_DISC && TIOCGETD && NTTYDISC */
63
64int
65/*ARGSUSED*/
66setdisc(f)
67int f;
68{
69#ifdef IRIS4D
70# ifndef POSIX
71 struct termio termiob;
72# else
73 struct termios termiob;
74# endif
75
76 if (ioctl(f, TCGETA, (ioctl_t) & termiob) == 0) {
77 otermiob = termiob;
78#if (SYSVREL < 4) || !defined(IRIS4D)
79 if (termiob.c_line != NTTYDISC || termiob.c_cc[VSWTCH] == 0) { /*}*/
80 termiob.c_line = NTTYDISC;
81#else
82 if (termiob.c_cc[VSWTCH] == 0) {
83#endif
84 termiob.c_cc[VSWTCH] = CSWTCH;
85 if (ioctl(f, TCSETA, (ioctl_t) & termiob) != 0)
86 return (-1);
87 }
88 }
89 else
90 return (-1);
91 add_discipline = 1;
92 return (0);
93#endif /* IRIS4D */
94
95
96#ifdef OREO
97# ifndef POSIX
98 struct termio termiob;
99# else
100 struct termios termiob;
101# endif
102
103 struct ltchars ltcbuf;
104
105 if (ioctl(f, TCGETA, (ioctl_t) & termiob) == 0) {
106 int comp = getcompat(COMPAT_BSDTTY);
107 otermiob = termiob;
108 if ((comp & COMPAT_BSDTTY) != COMPAT_BSDTTY) {
109 (void) setcompat(comp | COMPAT_BSDTTY);
110 if (ioctl(f, TIOCGLTC, (ioctl_t) & ltcbuf) != 0)
111 xprintf(CGETS(21, 1, "Couldn't get local chars.\n"));
112 else {
113 ltcbuf.t_suspc = CTL_ESC('\032'); /* ^Z */
114 ltcbuf.t_dsuspc = CTL_ESC('\031'); /* ^Y */
115 ltcbuf.t_rprntc = CTL_ESC('\022'); /* ^R */
116 ltcbuf.t_flushc = CTL_ESC('\017'); /* ^O */
117 ltcbuf.t_werasc = CTL_ESC('\027'); /* ^W */
118 ltcbuf.t_lnextc = CTL_ESC('\026'); /* ^V */
119 if (ioctl(f, TIOCSLTC, (ioctl_t) & ltcbuf) != 0)
120 xprintf(CGETS(21, 2, "Couldn't set local chars.\n"));
121 }
122 termiob.c_cc[VSWTCH] = '\0';
123 if (ioctl(f, TCSETAF, (ioctl_t) & termiob) != 0)
124 return (-1);
125 }
126 }
127 else
128 return (-1);
129 add_discipline = 1;
130 return (0);
131#endif /* OREO */
132
133
134#ifdef _IBMR2
135 union txname tx;
136
137 tx.tx_which = 0;
138
139 if (ioctl(f, TXGETLD, (ioctl_t) & tx) == 0) {
140 if (strcmp(tx.tx_name, strPOSIX) != 0)
141 if (ioctl(f, TXADDCD, (ioctl_t) strPOSIX) == 0) {
142 add_discipline = 1;
143 return (0);
144 }
145 return (0);
146 }
147 else
148 return (-1);
149#endif /* _IBMR2 */
150
151#ifndef HAVE_DISC
152# if defined(TIOCGETD) && defined(NTTYDISC)
153 if (ioctl(f, TIOCGETD, (ioctl_t) & oldisc) == 0) {
154 if (oldisc != NTTYDISC) {
155 int ldisc = NTTYDISC;
156
157 if (ioctl(f, TIOCSETD, (ioctl_t) & ldisc) != 0)
158 return (-1);
159 add_discipline = 1;
160 }
161 else
162 oldisc = -1;
163 return (0);
164 }
165 else
166 return (-1);
167# else
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| 168 USE(f); |
169 return (0);
170# endif /* TIOCGETD && NTTYDISC */
171#endif /* !HAVE_DISC */
172} /* end setdisc */
173
174
175int
176/*ARGSUSED*/
177resetdisc(f)
178int f;
179{
180 if (add_discipline) {
181 add_discipline = 0;
182#if defined(OREO) || defined(IRIS4D)
183 return (ioctl(f, TCSETAF, (ioctl_t) & otermiob));
184#endif /* OREO || IRIS4D */
185
186#ifdef _IBMR2
187 return (ioctl(f, TXDELCD, (ioctl_t) strPOSIX));
188#endif /* _IBMR2 */
189
190#ifndef HAVE_DISC
191# if defined(TIOCSETD) && defined(NTTYDISC)
192 return (ioctl(f, TIOCSETD, (ioctl_t) & oldisc));
193# endif /* TIOCSETD && NTTYDISC */
194#endif /* !HAVE_DISC */
195 }
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| 196 USE(f); |
197 return (0);
198} /* end resetdisc */
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