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