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