1 /*-
2 * Copyright (c) 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #ifndef lint
31 #if 0
32 static char sccsid[] = "@(#)key.c 8.3 (Berkeley) 4/2/94";
33 #endif
34 #endif /* not lint */
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37
38 #include <sys/types.h>
39
40 #include <err.h>
41 #include <stdlib.h>
42 #include <stdio.h>
43 #include <string.h>
44
45 #include "stty.h"
46 #include "extern.h"
47
48 __BEGIN_DECLS
49 static int c_key(const void *, const void *);
50 void f_all(struct info *);
51 void f_cbreak(struct info *);
52 void f_columns(struct info *);
53 void f_dec(struct info *);
54 void f_ek(struct info *);
55 void f_everything(struct info *);
56 void f_extproc(struct info *);
57 void f_ispeed(struct info *);
58 void f_nl(struct info *);
59 void f_ospeed(struct info *);
60 void f_raw(struct info *);
61 void f_rows(struct info *);
62 void f_sane(struct info *);
63 void f_size(struct info *);
64 void f_speed(struct info *);
65 void f_tty(struct info *);
66 __END_DECLS
67
68 static struct key {
69 const char *name; /* name */
70 void (*f)(struct info *); /* function */
71 #define F_NEEDARG 0x01 /* needs an argument */
72 #define F_OFFOK 0x02 /* can turn off */
73 int flags;
74 } keys[] = {
75 { "all", f_all, 0 },
76 { "cbreak", f_cbreak, F_OFFOK },
77 { "cols", f_columns, F_NEEDARG },
78 { "columns", f_columns, F_NEEDARG },
79 { "cooked", f_sane, 0 },
80 { "dec", f_dec, 0 },
81 { "ek", f_ek, 0 },
82 { "everything", f_everything, 0 },
83 { "extproc", f_extproc, F_OFFOK },
84 { "ispeed", f_ispeed, F_NEEDARG },
85 { "new", f_tty, 0 },
86 { "nl", f_nl, F_OFFOK },
87 { "old", f_tty, 0 },
88 { "ospeed", f_ospeed, F_NEEDARG },
89 { "raw", f_raw, F_OFFOK },
90 { "rows", f_rows, F_NEEDARG },
91 { "sane", f_sane, 0 },
92 { "size", f_size, 0 },
93 { "speed", f_speed, 0 },
94 { "tty", f_tty, 0 },
95 };
96
97 static int
c_key(const void * a,const void * b)98 c_key(const void *a, const void *b)
99 {
100
101 return (strcmp(((const struct key *)a)->name, ((const struct key *)b)->name));
102 }
103
104 int
ksearch(char *** argvp,struct info * ip)105 ksearch(char ***argvp, struct info *ip)
106 {
107 char *name;
108 struct key *kp, tmp;
109
110 name = **argvp;
111 if (*name == '-') {
112 ip->off = 1;
113 ++name;
114 } else
115 ip->off = 0;
116
117 tmp.name = name;
118 if (!(kp = (struct key *)bsearch(&tmp, keys,
119 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key)))
120 return (0);
121 if (!(kp->flags & F_OFFOK) && ip->off) {
122 warnx("illegal option -- -%s", name);
123 usage();
124 }
125 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) {
126 warnx("option requires an argument -- %s", name);
127 usage();
128 }
129 kp->f(ip);
130 return (1);
131 }
132
133 void
f_all(struct info * ip)134 f_all(struct info *ip)
135 {
136 print(&ip->t, &ip->win, ip->ldisc, BSD);
137 }
138
139 void
f_cbreak(struct info * ip)140 f_cbreak(struct info *ip)
141 {
142
143 if (ip->off)
144 f_sane(ip);
145 else {
146 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL;
147 ip->t.c_oflag |= OPOST;
148 ip->t.c_lflag |= ISIG|IEXTEN;
149 ip->t.c_lflag &= ~ICANON;
150 ip->set = 1;
151 }
152 }
153
154 void
f_columns(struct info * ip)155 f_columns(struct info *ip)
156 {
157
158 ip->win.ws_col = atoi(ip->arg);
159 ip->wset = 1;
160 }
161
162 void
f_dec(struct info * ip)163 f_dec(struct info *ip)
164 {
165
166 ip->t.c_cc[VERASE] = (u_char)0177;
167 ip->t.c_cc[VKILL] = CTRL('u');
168 ip->t.c_cc[VINTR] = CTRL('c');
169 ip->t.c_lflag &= ~ECHOPRT;
170 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL;
171 ip->t.c_iflag &= ~IXANY;
172 ip->set = 1;
173 }
174
175 void
f_ek(struct info * ip)176 f_ek(struct info *ip)
177 {
178
179 ip->t.c_cc[VERASE] = CERASE;
180 ip->t.c_cc[VKILL] = CKILL;
181 ip->set = 1;
182 }
183
184 void
f_everything(struct info * ip)185 f_everything(struct info *ip)
186 {
187
188 print(&ip->t, &ip->win, ip->ldisc, BSD);
189 }
190
191 void
f_extproc(struct info * ip)192 f_extproc(struct info *ip)
193 {
194
195 if (ip->off) {
196 int tmp = 0;
197 (void)ioctl(ip->fd, TIOCEXT, &tmp);
198 } else {
199 int tmp = 1;
200 (void)ioctl(ip->fd, TIOCEXT, &tmp);
201 }
202 }
203
204 void
f_ispeed(struct info * ip)205 f_ispeed(struct info *ip)
206 {
207
208 cfsetispeed(&ip->t, (speed_t)atoi(ip->arg));
209 ip->set = 1;
210 }
211
212 void
f_nl(struct info * ip)213 f_nl(struct info *ip)
214 {
215
216 if (ip->off) {
217 ip->t.c_iflag |= ICRNL;
218 ip->t.c_oflag |= ONLCR;
219 } else {
220 ip->t.c_iflag &= ~ICRNL;
221 ip->t.c_oflag &= ~ONLCR;
222 }
223 ip->set = 1;
224 }
225
226 void
f_ospeed(struct info * ip)227 f_ospeed(struct info *ip)
228 {
229
230 cfsetospeed(&ip->t, (speed_t)atoi(ip->arg));
231 ip->set = 1;
232 }
233
234 void
f_raw(struct info * ip)235 f_raw(struct info *ip)
236 {
237
238 if (ip->off)
239 f_sane(ip);
240 else {
241 cfmakeraw(&ip->t);
242 ip->t.c_cflag &= ~(CSIZE|PARENB);
243 ip->t.c_cflag |= CS8;
244 ip->set = 1;
245 }
246 }
247
248 void
f_rows(struct info * ip)249 f_rows(struct info *ip)
250 {
251
252 ip->win.ws_row = atoi(ip->arg);
253 ip->wset = 1;
254 }
255
256 void
f_sane(struct info * ip)257 f_sane(struct info *ip)
258 {
259 struct termios def;
260
261 cfmakesane(&def);
262 ip->t.c_cflag = def.c_cflag | (ip->t.c_cflag & CLOCAL);
263 ip->t.c_iflag = def.c_iflag;
264 /* preserve user-preference flags in lflag */
265 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
266 ip->t.c_lflag = def.c_lflag | (ip->t.c_lflag & LKEEP);
267 ip->t.c_oflag = def.c_oflag;
268 ip->set = 1;
269 }
270
271 void
f_size(struct info * ip)272 f_size(struct info *ip)
273 {
274
275 (void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col);
276 }
277
278 void
f_speed(struct info * ip)279 f_speed(struct info *ip)
280 {
281
282 (void)printf("%lu\n", (u_long)cfgetospeed(&ip->t));
283 }
284
285 void
f_tty(struct info * ip)286 f_tty(struct info *ip)
287 {
288 int tmp;
289
290 tmp = TTYDISC;
291 if (ioctl(ip->fd, TIOCSETD, &tmp) < 0)
292 err(1, "TIOCSETD");
293 }
294