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 * @(#)key.c 8.3 (Berkeley) 4/2/94
30 * $FreeBSD: src/bin/stty/key.c,v 1.11.2.2 2001/10/15 13:45:05 dd Exp $
31 * $DragonFly: src/bin/stty/key.c,v 1.5 2004/11/07 20:54:52 eirikn Exp $
32 */
33
34 #include <sys/types.h>
35
36 #include <err.h>
37 #include <errno.h>
38 #include <stdlib.h>
39 #include <stdio.h>
40 #include <string.h>
41
42 #include "stty.h"
43 #include "extern.h"
44
45 __BEGIN_DECLS
46 static int c_key (const void *, const void *);
47 void f_all (struct info *);
48 void f_cbreak (struct info *);
49 void f_columns (struct info *);
50 void f_dec (struct info *);
51 void f_ek (struct info *);
52 void f_everything (struct info *);
53 void f_extproc (struct info *);
54 void f_ispeed (struct info *);
55 void f_nl (struct info *);
56 void f_ospeed (struct info *);
57 void f_raw (struct info *);
58 void f_rows (struct info *);
59 void f_sane (struct info *);
60 void f_size (struct info *);
61 void f_speed (struct info *);
62 void f_tty (struct info *);
63 __END_DECLS
64
65 static struct key {
66 const char *name; /* name */
67 void (*f) (struct info *); /* function */
68 #define F_NEEDARG 0x01 /* needs an argument */
69 #define F_OFFOK 0x02 /* can turn off */
70 int flags;
71 } keys[] = {
72 { "all", f_all, 0 },
73 { "cbreak", f_cbreak, F_OFFOK },
74 { "cols", f_columns, F_NEEDARG },
75 { "columns", f_columns, F_NEEDARG },
76 { "cooked", f_sane, 0 },
77 { "dec", f_dec, 0 },
78 { "ek", f_ek, 0 },
79 { "everything", f_everything, 0 },
80 { "extproc", f_extproc, F_OFFOK },
81 { "ispeed", f_ispeed, F_NEEDARG },
82 { "new", f_tty, 0 },
83 { "nl", f_nl, F_OFFOK },
84 { "old", f_tty, 0 },
85 { "ospeed", f_ospeed, F_NEEDARG },
86 { "raw", f_raw, F_OFFOK },
87 { "rows", f_rows, F_NEEDARG },
88 { "sane", f_sane, 0 },
89 { "size", f_size, 0 },
90 { "speed", f_speed, 0 },
91 { "tty", f_tty, 0 },
92 };
93
94 static int
c_key(const void * a,const void * b)95 c_key(const void *a, const void *b)
96 {
97
98 return (strcmp(((const struct key *)a)->name, ((const struct key *)b)->name));
99 }
100
101 int
ksearch(char *** argvp,struct info * ip)102 ksearch(char ***argvp, struct info *ip)
103 {
104 char *name;
105 struct key *kp, tmp;
106
107 name = **argvp;
108 if (*name == '-') {
109 ip->off = 1;
110 ++name;
111 } else
112 ip->off = 0;
113
114 tmp.name = name;
115 if (!(kp = (struct key *)bsearch(&tmp, keys,
116 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key)))
117 return (0);
118 if (!(kp->flags & F_OFFOK) && ip->off) {
119 warnx("illegal option -- -%s", name);
120 usage();
121 }
122 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) {
123 warnx("option requires an argument -- %s", name);
124 usage();
125 }
126 kp->f(ip);
127 return (1);
128 }
129
130 void
f_all(struct info * ip)131 f_all(struct info *ip)
132 {
133 print(&ip->t, &ip->win, ip->ldisc, BSD);
134 }
135
136 void
f_cbreak(struct info * ip)137 f_cbreak(struct info *ip)
138 {
139
140 if (ip->off)
141 f_sane(ip);
142 else {
143 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL;
144 ip->t.c_oflag |= OPOST;
145 ip->t.c_lflag |= ISIG|IEXTEN;
146 ip->t.c_lflag &= ~ICANON;
147 ip->set = 1;
148 }
149 }
150
151 void
f_columns(struct info * ip)152 f_columns(struct info *ip)
153 {
154
155 ip->win.ws_col = atoi(ip->arg);
156 ip->wset = 1;
157 }
158
159 void
f_dec(struct info * ip)160 f_dec(struct info *ip)
161 {
162
163 ip->t.c_cc[VERASE] = (u_char)0177;
164 ip->t.c_cc[VKILL] = CTRL('u');
165 ip->t.c_cc[VINTR] = CTRL('c');
166 ip->t.c_lflag &= ~ECHOPRT;
167 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL;
168 ip->t.c_iflag &= ~IXANY;
169 ip->set = 1;
170 }
171
172 void
f_ek(struct info * ip)173 f_ek(struct info *ip)
174 {
175
176 ip->t.c_cc[VERASE] = CERASE;
177 ip->t.c_cc[VKILL] = CKILL;
178 ip->set = 1;
179 }
180
181 void
f_everything(struct info * ip)182 f_everything(struct info *ip)
183 {
184
185 print(&ip->t, &ip->win, ip->ldisc, BSD);
186 }
187
188 void
f_extproc(struct info * ip)189 f_extproc(struct info *ip)
190 {
191
192 if (ip->off) {
193 int tmp = 0;
194 ioctl(ip->fd, TIOCEXT, &tmp);
195 } else {
196 int tmp = 1;
197 ioctl(ip->fd, TIOCEXT, &tmp);
198 }
199 }
200
201 void
f_ispeed(struct info * ip)202 f_ispeed(struct info *ip)
203 {
204
205 cfsetispeed(&ip->t, (speed_t)atoi(ip->arg));
206 ip->set = 1;
207 }
208
209 void
f_nl(struct info * ip)210 f_nl(struct info *ip)
211 {
212
213 if (ip->off) {
214 ip->t.c_iflag |= ICRNL;
215 ip->t.c_oflag |= ONLCR;
216 } else {
217 ip->t.c_iflag &= ~ICRNL;
218 ip->t.c_oflag &= ~ONLCR;
219 }
220 ip->set = 1;
221 }
222
223 void
f_ospeed(struct info * ip)224 f_ospeed(struct info *ip)
225 {
226
227 cfsetospeed(&ip->t, (speed_t)atoi(ip->arg));
228 ip->set = 1;
229 }
230
231 void
f_raw(struct info * ip)232 f_raw(struct info *ip)
233 {
234
235 if (ip->off)
236 f_sane(ip);
237 else {
238 cfmakeraw(&ip->t);
239 ip->t.c_cflag &= ~(CSIZE|PARENB);
240 ip->t.c_cflag |= CS8;
241 ip->set = 1;
242 }
243 }
244
245 void
f_rows(struct info * ip)246 f_rows(struct info *ip)
247 {
248
249 ip->win.ws_row = atoi(ip->arg);
250 ip->wset = 1;
251 }
252
253 void
f_sane(struct info * ip)254 f_sane(struct info *ip)
255 {
256
257 ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & CLOCAL);
258 ip->t.c_iflag = TTYDEF_IFLAG;
259 ip->t.c_iflag |= ICRNL;
260 /* preserve user-preference flags in lflag */
261 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
262 ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP);
263 ip->t.c_oflag = TTYDEF_OFLAG;
264 ip->set = 1;
265 }
266
267 void
f_size(struct info * ip)268 f_size(struct info *ip)
269 {
270
271 printf("%d %d\n", ip->win.ws_row, ip->win.ws_col);
272 }
273
274 void
f_speed(struct info * ip)275 f_speed(struct info *ip)
276 {
277
278 printf("%lu\n", (u_long)cfgetospeed(&ip->t));
279 }
280
281 void
f_tty(struct info * ip)282 f_tty(struct info *ip)
283 {
284 int tmp;
285
286 tmp = TTYDISC;
287 if (ioctl(ip->fd, TIOCSETD, &tmp) < 0)
288 err(1, "TIOCSETD");
289 }
290