1 /* $OpenBSD: key.c,v 1.12 2003/06/11 23:42:12 deraadt Exp $ */
2 /* $NetBSD: key.c,v 1.11 1995/09/07 06:57:11 jtc Exp $ */
3
4 /*-
5 * Copyright (c) 1991, 1993, 1994
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)key.c 8.4 (Berkeley) 2/20/95";
36 #else
37 static char rcsid[] = "$OpenBSD: key.c,v 1.12 2003/06/11 23:42:12 deraadt Exp $";
38 #endif
39 #endif /* not lint */
40
41 #include <sys/types.h>
42
43 #include <err.h>
44 #include <errno.h>
45 #include <stdlib.h>
46 #include <stdio.h>
47 #include <string.h>
48
49 #include "stty.h"
50 #include "extern.h"
51
52 __BEGIN_DECLS
53 void f_all(struct info *);
54 void f_cbreak(struct info *);
55 void f_columns(struct info *);
56 void f_dec(struct info *);
57 void f_ek(struct info *);
58 void f_everything(struct info *);
59 void f_extproc(struct info *);
60 void f_ispeed(struct info *);
61 void f_lcase(struct info *);
62 void f_nl(struct info *);
63 void f_ospeed(struct info *);
64 void f_raw(struct info *);
65 void f_rows(struct info *);
66 void f_sane(struct info *);
67 void f_size(struct info *);
68 void f_speed(struct info *);
69 void f_ostart(struct info *);
70 void f_ostop(struct info *);
71 void f_tty(struct info *);
72 __END_DECLS
73
74 static struct key {
75 char *name; /* name */
76 void (*f)(struct info *); /* function */
77 #define F_NEEDARG 0x01 /* needs an argument */
78 #define F_OFFOK 0x02 /* can turn off */
79 int flags;
80 } keys[] = {
81 { "all", f_all, 0 },
82 { "cbreak", f_cbreak, F_OFFOK },
83 { "cols", f_columns, F_NEEDARG },
84 { "columns", f_columns, F_NEEDARG },
85 { "cooked", f_sane, 0 },
86 { "dec", f_dec, 0 },
87 { "ek", f_ek, 0 },
88 { "everything", f_everything, 0 },
89 { "extproc", f_extproc, F_OFFOK },
90 { "ispeed", f_ispeed, F_NEEDARG },
91 { "lcase", f_lcase, 0 },
92 { "new", f_tty, 0 },
93 { "nl", f_nl, F_OFFOK },
94 { "old", f_tty, 0 },
95 { "ospeed", f_ospeed, F_NEEDARG },
96 { "ostart", f_ostart, 0 },
97 { "ostop", f_ostop, 0 },
98 { "raw", f_raw, F_OFFOK },
99 { "rows", f_rows, F_NEEDARG },
100 { "sane", f_sane, 0 },
101 { "size", f_size, 0 },
102 { "speed", f_speed, 0 },
103 { "tty", f_tty, 0 },
104 };
105
106 static int
c_key(const void * a,const void * b)107 c_key(const void *a, const void *b)
108 {
109
110 return (strcmp(((struct key *)a)->name, ((struct key *)b)->name));
111 }
112
113 int
ksearch(char *** argvp,struct info * ip)114 ksearch(char ***argvp, struct info *ip)
115 {
116 char *name;
117 struct key *kp, tmp;
118
119 name = **argvp;
120 if (*name == '-') {
121 ip->off = 1;
122 ++name;
123 } else
124 ip->off = 0;
125
126 tmp.name = name;
127 if (!(kp = (struct key *)bsearch(&tmp, keys,
128 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key)))
129 return (0);
130 if (!(kp->flags & F_OFFOK) && ip->off) {
131 warnx("illegal option -- -%s", name);
132 usage();
133 }
134 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) {
135 warnx("option requires an argument -- %s", name);
136 usage();
137 }
138 kp->f(ip);
139 return (1);
140 }
141
142 void
f_all(struct info * ip)143 f_all(struct info *ip)
144 {
145 print(&ip->t, &ip->win, ip->ldisc, BSD);
146 }
147
148 void
f_cbreak(struct info * ip)149 f_cbreak(struct info *ip)
150 {
151
152 if (ip->off)
153 f_sane(ip);
154 else {
155 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL;
156 ip->t.c_oflag |= OPOST;
157 ip->t.c_lflag |= ISIG|IEXTEN;
158 ip->t.c_lflag &= ~ICANON;
159 ip->set = 1;
160 }
161 }
162
163 void
f_columns(struct info * ip)164 f_columns(struct info *ip)
165 {
166
167 ip->win.ws_col = atoi(ip->arg);
168 ip->wset = 1;
169 }
170
171 void
f_dec(struct info * ip)172 f_dec(struct info *ip)
173 {
174
175 ip->t.c_cc[VERASE] = (u_char)0177;
176 ip->t.c_cc[VKILL] = CTRL('u');
177 ip->t.c_cc[VINTR] = CTRL('c');
178 ip->t.c_lflag &= ~ECHOPRT;
179 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL;
180 ip->t.c_iflag &= ~IXANY;
181 ip->set = 1;
182 }
183
184 void
f_ek(struct info * ip)185 f_ek(struct info *ip)
186 {
187
188 ip->t.c_cc[VERASE] = CERASE;
189 ip->t.c_cc[VKILL] = CKILL;
190 ip->set = 1;
191 }
192
193 void
f_everything(struct info * ip)194 f_everything(struct info *ip)
195 {
196
197 print(&ip->t, &ip->win, ip->ldisc, BSD);
198 }
199
200 void
f_extproc(struct info * ip)201 f_extproc(struct info *ip)
202 {
203
204 if (ip->off) {
205 int tmp = 0;
206 (void)ioctl(ip->fd, TIOCEXT, &tmp);
207 } else {
208 int tmp = 1;
209 (void)ioctl(ip->fd, TIOCEXT, &tmp);
210 }
211 ip->set = 1;
212 }
213
214 void
f_ispeed(struct info * ip)215 f_ispeed(struct info *ip)
216 {
217
218 cfsetispeed(&ip->t, atoi(ip->arg));
219 ip->set = 1;
220 }
221
222 void
f_lcase(struct info * ip)223 f_lcase(struct info *ip)
224 {
225 if (ip->off) {
226 ip->t.c_iflag &= ~IUCLC;
227 ip->t.c_oflag &= ~OLCUC;
228 ip->t.c_lflag &= ~XCASE;
229 } else {
230 ip->t.c_iflag |= IUCLC;
231 ip->t.c_oflag |= OLCUC;
232 ip->t.c_lflag |= XCASE;
233 }
234 ip->set = 1;
235 }
236
237 void
f_nl(struct info * ip)238 f_nl(struct info *ip)
239 {
240
241 if (ip->off) {
242 ip->t.c_iflag |= ICRNL;
243 ip->t.c_oflag |= ONLCR;
244 } else {
245 ip->t.c_iflag &= ~ICRNL;
246 ip->t.c_oflag &= ~ONLCR;
247 }
248 ip->set = 1;
249 }
250
251 void
f_ospeed(struct info * ip)252 f_ospeed(struct info *ip)
253 {
254
255 cfsetospeed(&ip->t, atoi(ip->arg));
256 ip->set = 1;
257 }
258
259 void
f_raw(struct info * ip)260 f_raw(struct info *ip)
261 {
262
263 if (ip->off)
264 f_sane(ip);
265 else {
266 cfmakeraw(&ip->t);
267 ip->t.c_cflag &= ~(CSIZE|PARENB);
268 ip->t.c_cflag |= CS8;
269 ip->set = 1;
270 }
271 }
272
273 void
f_rows(struct info * ip)274 f_rows(struct info *ip)
275 {
276
277 ip->win.ws_row = atoi(ip->arg);
278 ip->wset = 1;
279 }
280
281 void
f_sane(struct info * ip)282 f_sane(struct info *ip)
283 {
284
285 ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & (CLOCAL|CRTSCTS));
286 ip->t.c_iflag = TTYDEF_IFLAG;
287 ip->t.c_iflag |= ICRNL;
288 /* preserve user-preference flags in lflag */
289 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
290 ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP);
291 ip->t.c_oflag = TTYDEF_OFLAG;
292 ip->set = 1;
293 }
294
295 void
f_size(struct info * ip)296 f_size(struct info *ip)
297 {
298
299 (void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col);
300 }
301
302 void
f_speed(struct info * ip)303 f_speed(struct info *ip)
304 {
305
306 (void)printf("%d\n", cfgetospeed(&ip->t));
307 }
308
309 void
f_tty(struct info * ip)310 f_tty(struct info *ip)
311 {
312 int tmp;
313
314 tmp = TTYDISC;
315 if (ioctl(ip->fd, TIOCSETD, &tmp) < 0)
316 err(1, "TIOCSETD");
317 }
318
319 void
f_ostart(struct info * ip)320 f_ostart(struct info *ip)
321 {
322 if (ioctl (ip->fd, TIOCSTART) < 0)
323 err(1, "TIOCSTART");
324 }
325
326 void
f_ostop(struct info * ip)327 f_ostop(struct info *ip)
328 {
329 if (ioctl (ip->fd, TIOCSTOP) < 0)
330 err(1, "TIOCSTOP");
331 }
332