1 |
|
|
/* $OpenBSD: lib_baudrate.c,v 1.6 2013/12/10 20:33:51 naddy Exp $ */ |
2 |
|
|
|
3 |
|
|
/**************************************************************************** |
4 |
|
|
* Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * |
5 |
|
|
* * |
6 |
|
|
* Permission is hereby granted, free of charge, to any person obtaining a * |
7 |
|
|
* copy of this software and associated documentation files (the * |
8 |
|
|
* "Software"), to deal in the Software without restriction, including * |
9 |
|
|
* without limitation the rights to use, copy, modify, merge, publish, * |
10 |
|
|
* distribute, distribute with modifications, sublicense, and/or sell * |
11 |
|
|
* copies of the Software, and to permit persons to whom the Software is * |
12 |
|
|
* furnished to do so, subject to the following conditions: * |
13 |
|
|
* * |
14 |
|
|
* The above copyright notice and this permission notice shall be included * |
15 |
|
|
* in all copies or substantial portions of the Software. * |
16 |
|
|
* * |
17 |
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
18 |
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
19 |
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
20 |
|
|
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
21 |
|
|
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
22 |
|
|
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
23 |
|
|
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
24 |
|
|
* * |
25 |
|
|
* Except as contained in this notice, the name(s) of the above copyright * |
26 |
|
|
* holders shall not be used in advertising or otherwise to promote the * |
27 |
|
|
* sale, use or other dealings in this Software without prior written * |
28 |
|
|
* authorization. * |
29 |
|
|
****************************************************************************/ |
30 |
|
|
|
31 |
|
|
/**************************************************************************** |
32 |
|
|
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * |
33 |
|
|
* and: Eric S. Raymond <esr@snark.thyrsus.com> * |
34 |
|
|
* and: Thomas E. Dickey 1996-on * |
35 |
|
|
****************************************************************************/ |
36 |
|
|
|
37 |
|
|
/* |
38 |
|
|
* lib_baudrate.c |
39 |
|
|
* |
40 |
|
|
*/ |
41 |
|
|
|
42 |
|
|
#include <curses.priv.h> |
43 |
|
|
#include <term.h> /* cur_term, pad_char */ |
44 |
|
|
#include <termcap.h> /* ospeed */ |
45 |
|
|
#if defined(__FreeBSD__) |
46 |
|
|
#include <sys/param.h> |
47 |
|
|
#endif |
48 |
|
|
|
49 |
|
|
/* |
50 |
|
|
* These systems use similar header files, which define B1200 as 1200, etc., |
51 |
|
|
* but can be overridden by defining USE_OLD_TTY so B1200 is 9, which makes all |
52 |
|
|
* of the indices up to B115200 fit nicely in a 'short', allowing us to retain |
53 |
|
|
* ospeed's type for compatibility. |
54 |
|
|
*/ |
55 |
|
|
#if (defined(__FreeBSD__) && (__FreeBSD_version < 700000)) || defined(__NetBSD__) |
56 |
|
|
#undef B0 |
57 |
|
|
#undef B50 |
58 |
|
|
#undef B75 |
59 |
|
|
#undef B110 |
60 |
|
|
#undef B134 |
61 |
|
|
#undef B150 |
62 |
|
|
#undef B200 |
63 |
|
|
#undef B300 |
64 |
|
|
#undef B600 |
65 |
|
|
#undef B1200 |
66 |
|
|
#undef B1800 |
67 |
|
|
#undef B2400 |
68 |
|
|
#undef B4800 |
69 |
|
|
#undef B9600 |
70 |
|
|
#undef B19200 |
71 |
|
|
#undef EXTA |
72 |
|
|
#undef B38400 |
73 |
|
|
#undef EXTB |
74 |
|
|
#undef B57600 |
75 |
|
|
#undef B115200 |
76 |
|
|
#undef B230400 |
77 |
|
|
#undef B460800 |
78 |
|
|
#undef B921600 |
79 |
|
|
#define USE_OLD_TTY |
80 |
|
|
#include <sys/ttydev.h> |
81 |
|
|
#else |
82 |
|
|
#undef USE_OLD_TTY |
83 |
|
|
#endif /* USE_OLD_TTY */ |
84 |
|
|
|
85 |
|
|
MODULE_ID("$Id: lib_baudrate.c,v 1.6 2013/12/10 20:33:51 naddy Exp $") |
86 |
|
|
|
87 |
|
|
/* |
88 |
|
|
* int |
89 |
|
|
* baudrate() |
90 |
|
|
* |
91 |
|
|
* Returns the current terminal's baud rate. |
92 |
|
|
* |
93 |
|
|
*/ |
94 |
|
|
|
95 |
|
|
struct speed { |
96 |
|
|
int s; /* value for 'ospeed' is an index */ |
97 |
|
|
int sp; /* the actual speed */ |
98 |
|
|
}; |
99 |
|
|
|
100 |
|
|
static struct speed const speeds[] = |
101 |
|
|
{ |
102 |
|
|
{B0, 0}, |
103 |
|
|
{B50, 50}, |
104 |
|
|
{B75, 75}, |
105 |
|
|
{B110, 110}, |
106 |
|
|
{B134, 134}, |
107 |
|
|
{B150, 150}, |
108 |
|
|
{B200, 200}, |
109 |
|
|
{B300, 300}, |
110 |
|
|
{B600, 600}, |
111 |
|
|
{B1200, 1200}, |
112 |
|
|
{B1800, 1800}, |
113 |
|
|
{B2400, 2400}, |
114 |
|
|
{B4800, 4800}, |
115 |
|
|
{B9600, 9600}, |
116 |
|
|
#ifdef B19200 |
117 |
|
|
{B19200, 19200}, |
118 |
|
|
#else |
119 |
|
|
#ifdef EXTA |
120 |
|
|
{EXTA, 19200}, |
121 |
|
|
#endif |
122 |
|
|
#endif |
123 |
|
|
#ifdef B38400 |
124 |
|
|
{B38400, 38400}, |
125 |
|
|
#else |
126 |
|
|
#ifdef EXTB |
127 |
|
|
{EXTB, 38400}, |
128 |
|
|
#endif |
129 |
|
|
#endif |
130 |
|
|
#ifdef B57600 |
131 |
|
|
{B57600, 57600}, |
132 |
|
|
#endif |
133 |
|
|
#ifdef B115200 |
134 |
|
|
{B115200, 115200}, |
135 |
|
|
#endif |
136 |
|
|
#ifdef B230400 |
137 |
|
|
{B230400, 230400}, |
138 |
|
|
#endif |
139 |
|
|
#ifdef B460800 |
140 |
|
|
{B460800, 460800}, |
141 |
|
|
#endif |
142 |
|
|
#ifdef B921600 |
143 |
|
|
{B921600, 921600}, |
144 |
|
|
#endif |
145 |
|
|
}; |
146 |
|
|
|
147 |
|
|
NCURSES_EXPORT(int) |
148 |
|
|
_nc_baudrate(int OSpeed) |
149 |
|
|
{ |
150 |
|
|
#if !USE_REENTRANT |
151 |
|
|
static int last_OSpeed; |
152 |
|
|
static int last_baudrate; |
153 |
|
|
#endif |
154 |
|
|
|
155 |
|
|
int result = ERR; |
156 |
|
|
unsigned i; |
157 |
|
|
|
158 |
|
|
#if !USE_REENTRANT |
159 |
✓✓ |
52328 |
if (OSpeed == last_OSpeed) { |
160 |
|
25978 |
result = last_baudrate; |
161 |
|
25978 |
} |
162 |
|
|
#endif |
163 |
✓✓ |
26164 |
if (result == ERR) { |
164 |
✓✗ |
186 |
if (OSpeed >= 0) { |
165 |
✓✗ |
5880 |
for (i = 0; i < SIZEOF(speeds); i++) { |
166 |
✓✓ |
2940 |
if (speeds[i].s == OSpeed) { |
167 |
|
186 |
result = speeds[i].sp; |
168 |
|
186 |
break; |
169 |
|
|
} |
170 |
|
|
} |
171 |
|
|
} |
172 |
|
|
#if !USE_REENTRANT |
173 |
✓✗ |
186 |
if (OSpeed != last_OSpeed) { |
174 |
|
186 |
last_OSpeed = OSpeed; |
175 |
|
186 |
last_baudrate = result; |
176 |
|
186 |
} |
177 |
|
|
#endif |
178 |
|
|
} |
179 |
|
26164 |
return (result); |
180 |
|
|
} |
181 |
|
|
|
182 |
|
|
NCURSES_EXPORT(int) |
183 |
|
|
_nc_ospeed(int BaudRate) |
184 |
|
|
{ |
185 |
|
|
int result = 1; |
186 |
|
|
unsigned i; |
187 |
|
|
|
188 |
✓✗ |
582 |
if (BaudRate >= 0) { |
189 |
✓✗ |
582 |
for (i = 0; i < SIZEOF(speeds); i++) { |
190 |
✓✗ |
291 |
if (speeds[i].sp == BaudRate) { |
191 |
|
291 |
result = speeds[i].s; |
192 |
|
291 |
break; |
193 |
|
|
} |
194 |
|
|
} |
195 |
|
|
} |
196 |
|
291 |
return (result); |
197 |
|
|
} |
198 |
|
|
|
199 |
|
|
NCURSES_EXPORT(int) |
200 |
|
|
baudrate(void) |
201 |
|
|
{ |
202 |
|
|
int result; |
203 |
|
|
|
204 |
|
|
T((T_CALLED("baudrate()"))); |
205 |
|
|
|
206 |
|
|
/* |
207 |
|
|
* In debugging, allow the environment symbol to override when we're |
208 |
|
|
* redirecting to a file, so we can construct repeatable test-cases |
209 |
|
|
* that take into account costs that depend on baudrate. |
210 |
|
|
*/ |
211 |
|
|
#ifdef TRACE |
212 |
|
|
if (!isatty(fileno(SP ? SP->_ofp : stdout)) |
213 |
|
|
&& getenv("BAUDRATE") != 0) { |
214 |
|
|
int ret; |
215 |
|
|
if ((ret = _nc_getenv_num("BAUDRATE")) <= 0) |
216 |
|
|
ret = 9600; |
217 |
|
|
ospeed = _nc_ospeed(ret); |
218 |
|
|
returnCode(ret); |
219 |
|
|
} |
220 |
|
|
#endif |
221 |
|
|
|
222 |
✓✗ |
896 |
if (cur_term != 0) { |
223 |
|
|
#ifdef USE_OLD_TTY |
224 |
|
|
result = cfgetospeed(&cur_term->Nttyb); |
225 |
|
|
ospeed = _nc_ospeed(result); |
226 |
|
|
#else /* !USE_OLD_TTY */ |
227 |
|
|
#ifdef TERMIOS |
228 |
|
448 |
ospeed = cfgetospeed(&cur_term->Nttyb); |
229 |
|
|
#else |
230 |
|
|
ospeed = cur_term->Nttyb.sg_ospeed; |
231 |
|
|
#endif |
232 |
|
448 |
result = _nc_baudrate(ospeed); |
233 |
|
|
#endif |
234 |
|
448 |
cur_term->_baudrate = result; |
235 |
|
448 |
} else { |
236 |
|
|
result = ERR; |
237 |
|
|
} |
238 |
|
|
|
239 |
|
448 |
returnCode(result); |
240 |
|
|
} |