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 #include <sys/types.h>
37
38 #include <err.h>
39 #include <stdlib.h>
40 #include <stdio.h>
41 #include <string.h>
42
43 #include "stty.h"
44 #include "extern.h"
45
46 __BEGIN_DECLS
47 static int c_key(const void *, const void *);
48 void f_all(struct info *);
49 void f_cbreak(struct info *);
50 void f_columns(struct info *);
51 void f_dec(struct info *);
52 void f_ek(struct info *);
53 void f_everything(struct info *);
54 void f_extproc(struct info *);
55 void f_ispeed(struct info *);
56 void f_nl(struct info *);
57 void f_ospeed(struct info *);
58 void f_raw(struct info *);
59 void f_rows(struct info *);
60 void f_sane(struct info *);
61 void f_size(struct info *);
62 void f_speed(struct info *);
63 void f_tty(struct info *);
64 __END_DECLS
65
66 static struct key {
67 const char *name; /* name */
68 void (*f)(struct info *); /* function */
69 #define F_NEEDARG 0x01 /* needs an argument */
70 #define F_OFFOK 0x02 /* can turn off */
71 int flags;
72 } keys[] = {
73 { "all", f_all, 0 },
74 { "cbreak", f_cbreak, F_OFFOK },
75 { "cols", f_columns, F_NEEDARG },
76 { "columns", f_columns, F_NEEDARG },
77 { "cooked", f_sane, 0 },
78 { "dec", f_dec, 0 },
79 { "ek", f_ek, 0 },
80 { "everything", f_everything, 0 },
81 { "extproc", f_extproc, F_OFFOK },
82 { "ispeed", f_ispeed, F_NEEDARG },
83 { "new", f_tty, 0 },
84 { "nl", f_nl, F_OFFOK },
85 { "old", f_tty, 0 },
86 { "ospeed", f_ospeed, F_NEEDARG },
87 { "raw", f_raw, F_OFFOK },
88 { "rows", f_rows, F_NEEDARG },
89 { "sane", f_sane, 0 },
90 { "size", f_size, 0 },
91 { "speed", f_speed, 0 },
92 { "tty", f_tty, 0 },
93 };
94
95 static int
c_key(const void * a,const void * b)96 c_key(const void *a, const void *b)
97 {
98
99 return (strcmp(((const struct key *)a)->name, ((const struct key *)b)->name));
100 }
101
102 int
ksearch(char *** argvp,struct info * ip)103 ksearch(char ***argvp, struct info *ip)
104 {
105 char *name;
106 struct key *kp, tmp;
107
108 name = **argvp;
109 if (*name == '-') {
110 ip->off = 1;
111 ++name;
112 } else
113 ip->off = 0;
114
115 tmp.name = name;
116 if (!(kp = (struct key *)bsearch(&tmp, keys,
117 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key)))
118 return (0);
119 if (!(kp->flags & F_OFFOK) && ip->off) {
120 warnx("illegal option -- -%s", name);
121 usage();
122 }
123 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) {
124 warnx("option requires an argument -- %s", name);
125 usage();
126 }
127 kp->f(ip);
128 return (1);
129 }
130
131 void
f_all(struct info * ip)132 f_all(struct info *ip)
133 {
134 print(&ip->t, &ip->win, ip->ldisc, BSD);
135 }
136
137 void
f_cbreak(struct info * ip)138 f_cbreak(struct info *ip)
139 {
140
141 if (ip->off)
142 f_sane(ip);
143 else {
144 ip->t.c_iflag |= BRKINT|IXON|IMAXBEL;
145 ip->t.c_oflag |= OPOST;
146 ip->t.c_lflag |= ISIG|IEXTEN;
147 ip->t.c_lflag &= ~ICANON;
148 ip->set = 1;
149 }
150 }
151
152 void
f_columns(struct info * ip)153 f_columns(struct info *ip)
154 {
155
156 ip->win.ws_col = atoi(ip->arg);
157 ip->wset = 1;
158 }
159
160 void
f_dec(struct info * ip)161 f_dec(struct info *ip)
162 {
163
164 ip->t.c_cc[VERASE] = (u_char)0177;
165 ip->t.c_cc[VKILL] = CTRL('u');
166 ip->t.c_cc[VINTR] = CTRL('c');
167 ip->t.c_lflag &= ~ECHOPRT;
168 ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL;
169 ip->t.c_iflag &= ~IXANY;
170 ip->set = 1;
171 }
172
173 void
f_ek(struct info * ip)174 f_ek(struct info *ip)
175 {
176
177 ip->t.c_cc[VERASE] = CERASE;
178 ip->t.c_cc[VKILL] = CKILL;
179 ip->set = 1;
180 }
181
182 void
f_everything(struct info * ip)183 f_everything(struct info *ip)
184 {
185
186 print(&ip->t, &ip->win, ip->ldisc, BSD);
187 }
188
189 void
f_extproc(struct info * ip)190 f_extproc(struct info *ip)
191 {
192
193 if (ip->off) {
194 int tmp = 0;
195 (void)ioctl(ip->fd, TIOCEXT, &tmp);
196 } else {
197 int tmp = 1;
198 (void)ioctl(ip->fd, TIOCEXT, &tmp);
199 }
200 }
201
202 void
f_ispeed(struct info * ip)203 f_ispeed(struct info *ip)
204 {
205
206 cfsetispeed(&ip->t, (speed_t)atoi(ip->arg));
207 ip->set = 1;
208 }
209
210 void
f_nl(struct info * ip)211 f_nl(struct info *ip)
212 {
213
214 if (ip->off) {
215 ip->t.c_iflag |= ICRNL;
216 ip->t.c_oflag |= ONLCR;
217 } else {
218 ip->t.c_iflag &= ~ICRNL;
219 ip->t.c_oflag &= ~ONLCR;
220 }
221 ip->set = 1;
222 }
223
224 void
f_ospeed(struct info * ip)225 f_ospeed(struct info *ip)
226 {
227
228 cfsetospeed(&ip->t, (speed_t)atoi(ip->arg));
229 ip->set = 1;
230 }
231
232 void
f_raw(struct info * ip)233 f_raw(struct info *ip)
234 {
235
236 if (ip->off)
237 f_sane(ip);
238 else {
239 cfmakeraw(&ip->t);
240 ip->t.c_cflag &= ~(CSIZE|PARENB);
241 ip->t.c_cflag |= CS8;
242 ip->set = 1;
243 }
244 }
245
246 void
f_rows(struct info * ip)247 f_rows(struct info *ip)
248 {
249
250 ip->win.ws_row = atoi(ip->arg);
251 ip->wset = 1;
252 }
253
254 void
f_sane(struct info * ip)255 f_sane(struct info *ip)
256 {
257 struct termios def;
258
259 cfmakesane(&def);
260 ip->t.c_cflag = def.c_cflag | (ip->t.c_cflag & CLOCAL);
261 ip->t.c_iflag = def.c_iflag;
262 /* preserve user-preference flags in lflag */
263 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
264 ip->t.c_lflag = def.c_lflag | (ip->t.c_lflag & LKEEP);
265 ip->t.c_oflag = def.c_oflag;
266 ip->set = 1;
267 }
268
269 void
f_size(struct info * ip)270 f_size(struct info *ip)
271 {
272
273 (void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col);
274 }
275
276 void
f_speed(struct info * ip)277 f_speed(struct info *ip)
278 {
279
280 (void)printf("%lu\n", (u_long)cfgetospeed(&ip->t));
281 }
282
283 void
f_tty(struct info * ip)284 f_tty(struct info *ip)
285 {
286 int tmp;
287
288 tmp = TTYDISC;
289 if (ioctl(ip->fd, TIOCSETD, &tmp) < 0)
290 err(1, "TIOCSETD");
291 }
292