1 /* $NetBSD: key.c,v 1.7 2005/11/28 03:26:06 christos Exp $ */
2
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/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)key.c 8.3 (Berkeley) 4/2/94";
36 #else
37 __RCSID("$NetBSD: key.c,v 1.7 2005/11/28 03:26:06 christos Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <sys/param.h>
42 #include <sys/types.h>
43
44 #include <errno.h>
45 #include <stdlib.h>
46 #include <stdio.h>
47 #include <string.h>
48 #include <syslog.h>
49 #include <dirent.h>
50 #include <termios.h>
51
52 #include "lp.h"
53 #include "extern.h"
54
55 __BEGIN_DECLS
56 static int
57 c_key(const void *, const void *);
58 void f_cbreak(struct info *);
59 void f_columns(struct info *);
60 void f_dec(struct info *);
61 void f_extproc(struct info *);
62 void f_ispeed(struct info *);
63 void f_nl(struct info *);
64 void f_ospeed(struct info *);
65 void f_raw(struct info *);
66 void f_rows(struct info *);
67 void f_sane(struct info *);
68 void f_tty(struct info *);
69 __END_DECLS
70
71 static struct key {
72 const char *name; /* name */
73 void (*f)(struct info *); /* function */
74 #define F_NEEDARG 0x01 /* needs an argument */
75 #define F_OFFOK 0x02 /* can turn off */
76 int flags;
77 } const keys[] = {
78 { "cbreak", f_cbreak, F_OFFOK },
79 { "cols", f_columns, F_NEEDARG },
80 { "columns", f_columns, F_NEEDARG },
81 { "cooked", f_sane, 0 },
82 { "dec", f_dec, 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 { "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,
100 ((const struct key *)b)->name));
101 }
102
103 int
ksearch(char *** argvp,struct info * ip)104 ksearch(char ***argvp, struct info *ip)
105 {
106 char *name;
107 struct key *kp, tmp;
108
109 name = **argvp;
110 if (*name == '-') {
111 ip->off = 1;
112 ++name;
113 } else
114 ip->off = 0;
115
116 tmp.name = name;
117 if (!(kp = (struct key *)bsearch(&tmp, keys,
118 sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key)))
119 return (0);
120 if (!(kp->flags & F_OFFOK) && ip->off) {
121 syslog(LOG_INFO, "%s: illegal option: %s", printer, name);
122 return (1);
123 }
124 if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) {
125 syslog(LOG_INFO, "%s: option requires an argument: %s",
126 printer, name);
127 return (1);
128 }
129 kp->f(ip);
130 return (1);
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_extproc(struct info * ip)170 f_extproc(struct info *ip)
171 {
172
173 if (ip->set) {
174 int tmp = 1;
175 (void)ioctl(ip->fd, TIOCEXT, &tmp);
176 } else {
177 int tmp = 0;
178 (void)ioctl(ip->fd, TIOCEXT, &tmp);
179 }
180 }
181
182 void
f_ispeed(struct info * ip)183 f_ispeed(struct info *ip)
184 {
185
186 cfsetispeed(&ip->t, atoi(ip->arg));
187 ip->set = 1;
188 }
189
190 void
f_nl(struct info * ip)191 f_nl(struct info *ip)
192 {
193
194 if (ip->off) {
195 ip->t.c_iflag |= ICRNL;
196 ip->t.c_oflag |= ONLCR;
197 } else {
198 ip->t.c_iflag &= ~ICRNL;
199 ip->t.c_oflag &= ~ONLCR;
200 }
201 ip->set = 1;
202 }
203
204 void
f_ospeed(struct info * ip)205 f_ospeed(struct info *ip)
206 {
207
208 cfsetospeed(&ip->t, atoi(ip->arg));
209 ip->set = 1;
210 }
211
212 void
f_raw(struct info * ip)213 f_raw(struct info *ip)
214 {
215
216 if (ip->off)
217 f_sane(ip);
218 else {
219 cfmakeraw(&ip->t);
220 ip->t.c_cflag &= ~(CSIZE|PARENB);
221 ip->t.c_cflag |= CS8;
222 ip->set = 1;
223 }
224 }
225
226 void
f_rows(struct info * ip)227 f_rows(struct info *ip)
228 {
229
230 ip->win.ws_row = atoi(ip->arg);
231 ip->wset = 1;
232 }
233
234 void
f_sane(struct info * ip)235 f_sane(struct info *ip)
236 {
237
238 ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & (CLOCAL|CRTSCTS|CDTRCTS));
239 ip->t.c_iflag = TTYDEF_IFLAG;
240 ip->t.c_iflag |= ICRNL;
241 /* preserve user-preference flags in lflag */
242 #define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
243 ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP);
244 ip->t.c_oflag = TTYDEF_OFLAG;
245 ip->set = 1;
246 }
247
248 void
f_tty(struct info * ip)249 f_tty(struct info *ip)
250 {
251 int tmp;
252
253 tmp = TTYDISC;
254 if (ioctl(0, TIOCSETD, &tmp) < 0)
255 syslog(LOG_ERR, "%s: ioctl(TIOCSETD): %m", printer);
256 }
257