1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/* $OpenBSD: setterm.c,v 1.7 2005/08/14 17:15:19 espie Exp $ */
/*
* Copyright (c) 1981, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/ioctl.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include <limits.h>
#include "curses.h"
static void zap(void);
static char *sflags[] = {
/* am bs da eo hc in mi ms */
&AM, &BS, &DA, &EO, &HC, &IN, &MI, &MS,
/* nc ns os ul xb xn xt xs xx */
&NC, &NS, &OS, &UL, &XB, &XN, &XT, &XS, &XX
};
static char *_PC,
**sstrs[] = {
/* AL bc bt cd ce cl cm cr cs */
&AL, &BC, &BT, &CD, &CE, &CL, &CM, &CR, &CS,
/* dc DL dm do ed ei k0 k1 k2 */
&DC, &DL, &DM, &DO, &ED, &EI, &K0, &K1, &K2,
/* k3 k4 k5 k6 k7 k8 k9 ho ic */
&K3, &K4, &K5, &K6, &K7, &K8, &K9, &HO, &IC,
/* im ip kd ke kh kl kr ks ku */
&IM, &IP, &KD, &KE, &KH, &KL, &KR, &KS, &KU,
/* ll ma nd nl pc rc sc se SF */
&LL, &MA, &ND, &NL, &_PC, &RC, &SC, &SE, &SF,
/* so SR ta te ti uc ue up us */
&SO, &SR, &TA, &TE, &TI, &UC, &UE, &UP, &US,
/* vb vs ve al dl sf sr AL */
&VB, &VS, &VE, &al, &dl, &sf, &sr, &AL_PARM,
/* DL UP DO LE */
&DL_PARM, &UP_PARM, &DOWN_PARM, &LEFT_PARM,
/* RI */
&RIGHT_PARM,
};
static char *aoftspace; /* Address of _tspace for relocation */
static char tspace[2048]; /* Space for capability strings */
char *ttytype;
int
setterm(type)
register char *type;
{
static char genbuf[1024];
static char __ttytype[1024];
register int unknown;
struct ttysize win;
char *p;
#ifdef DEBUG
__CTRACE("setterm: (\"%s\")\nLINES = %d, COLS = %d\n",
type, LINES, COLS);
#endif
if (type[0] == '\0')
type = "xx";
unknown = 0;
if (tgetent(genbuf, type) != 1) {
unknown++;
strlcpy(genbuf, "xx|dumb:", sizeof(genbuf));
}
#ifdef DEBUG
__CTRACE("setterm: tty = %s\n", type);
#endif
/* Try TIOCGSIZE, and, if it fails, the termcap entry. */
if (ioctl(STDERR_FILENO, TIOCGSIZE, &win) != -1 &&
win.ts_lines != 0 && win.ts_cols != 0) {
LINES = win.ts_lines;
COLS = win.ts_cols;
} else {
LINES = tgetnum("li");
COLS = tgetnum("co");
}
/* POSIX 1003.2 requires that the environment override. */
if ((p = getenv("LINES")) != NULL) {
long l = strtol(p, &p, 10);
if (l > 0 && l < INT_MAX && *p == '\0')
LINES = (int)l;
}
if ((p = getenv("COLUMNS")) != NULL) {
long l = strtol(p, &p, 10);
if (l > 0 && l < INT_MAX && *p == '\0')
COLS = (int)l;
}
/*
* Want cols > 4, otherwise things will fail.
*/
if (COLS <= 4)
return (ERR);
#ifdef DEBUG
__CTRACE("setterm: LINES = %d, COLS = %d\n", LINES, COLS);
#endif
aoftspace = tspace;
zap(); /* Get terminal description. */
/* If we can't tab, we can't backtab, either. */
if (!GT)
BT = NULL;
/*
* Test for cursor motion capbility.
*
* XXX
* This is truly stupid -- tgoto returns "OOPS" if it can't
* do cursor motions.
*/
if (tgoto(CM, 0, 0)[0] == 'O') {
CA = 0;
CM = 0;
} else
CA = 1;
PC = _PC ? _PC[0] : 0;
aoftspace = tspace;
ttytype = longname(genbuf, __ttytype);
/* If no scrolling commands, no quick change. */
__noqch =
(CS == NULL || HO == NULL ||
SF == NULL && sf == NULL || SR == NULL && sr == NULL) &&
(AL == NULL && al == NULL || DL == NULL && dl == NULL);
return (unknown ? ERR : OK);
}
/*
* zap --
* Gets all the terminal flags from the termcap database.
*/
static void
zap()
{
register char *namp, ***sp;
register char **fp;
char tmp[3];
#ifdef DEBUG
register char *cp;
#endif
tmp[2] = '\0';
namp = "ambsdaeohcinmimsncnsosulxbxnxtxsxx";
fp = sflags;
do {
*tmp = *namp;
*(tmp + 1) = *(namp + 1);
*(*fp++) = tgetflag(tmp);
#ifdef DEBUG
__CTRACE("2.2s = %s\n", namp, *fp[-1] ? "TRUE" : "FALSE");
#endif
namp += 2;
} while (*namp);
namp = "ALbcbtcdceclcmcrcsdcDLdmdoedeik0k1k2k3k4k5k6k7k8k9hoicimipkdkekhklkrkskullmandnlpcrcscseSFsoSRtatetiucueupusvbvsvealdlsfsrALDLUPDOLERI";
sp = sstrs;
do {
*tmp = *namp;
*(tmp + 1) = *(namp + 1);
*(*sp++) = tgetstr(tmp, &aoftspace);
#ifdef DEBUG
__CTRACE("2.2s = %s", namp, *sp[-1] == NULL ? "NULL\n" : "\"");
if (*sp[-1] != NULL) {
for (cp = *sp[-1]; *cp; cp++)
__CTRACE("%s", unctrl(*cp));
__CTRACE("\"\n");
}
#endif
namp += 2;
} while (*namp);
if (XS)
SO = SE = NULL;
else {
if (tgetnum("sg") > 0)
SO = NULL;
if (tgetnum("ug") > 0)
US = NULL;
if (!SO && US) {
SO = US;
SE = UE;
}
}
}
/*
* getcap --
* Return a capability from termcap.
*/
char *
getcap(name)
char *name;
{
return (tgetstr(name, &aoftspace));
}
|
