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key.c revision 1.15 
      1 /*	$NetBSD: key.c,v 1.15 1999/01/13 23:55:26 sommerfe 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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)key.c	8.4 (Berkeley) 2/20/95";
     40 #else
     41 __RCSID("$NetBSD: key.c,v 1.15 1999/01/13 23:55:26 sommerfe Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <sys/types.h>
     46 
     47 #include <err.h>
     48 #include <errno.h>
     49 #include <stdlib.h>
     50 #include <stdio.h>
     51 #include <string.h>
     52 
     53 #include "stty.h"
     54 #include "extern.h"
     55 
     56 __BEGIN_DECLS
     57 void	f_all __P((struct info *));
     58 void	f_cbreak __P((struct info *));
     59 void	f_columns __P((struct info *));
     60 void	f_dec __P((struct info *));
     61 void	f_everything __P((struct info *));
     62 void	f_extproc __P((struct info *));
     63 void	f_ispeed __P((struct info *));
     64 void	f_nl __P((struct info *));
     65 void	f_ospeed __P((struct info *));
     66 void	f_raw __P((struct info *));
     67 void	f_rows __P((struct info *));
     68 void	f_sane __P((struct info *));
     69 void	f_size __P((struct info *));
     70 void	f_speed __P((struct info *));
     71 void	f_ostart __P((struct info *));
     72 void	f_ostop __P((struct info *));
     73 void	f_tty __P((struct info *));
     74 __END_DECLS
     75 
     76 static const struct key {
     77 	const char *name;			/* name */
     78 	void (*f) __P((struct info *));		/* function */
     79 #define	F_NEEDARG	0x01			/* needs an argument */
     80 #define	F_OFFOK		0x02			/* can turn off */
     81 	int flags;
     82 } keys[] = {
     83 	{ "all",	f_all,		0 },
     84 	{ "cbreak",	f_cbreak,	F_OFFOK },
     85 	{ "cols",	f_columns,	F_NEEDARG },
     86 	{ "columns",	f_columns,	F_NEEDARG },
     87 	{ "cooked", 	f_sane,		0 },
     88 	{ "dec",	f_dec,		0 },
     89 	{ "everything",	f_everything,	0 },
     90 	{ "extproc",	f_extproc,	F_OFFOK },
     91 	{ "ispeed",	f_ispeed,	F_NEEDARG },
     92 	{ "new",	f_tty,		0 },
     93 	{ "nl",		f_nl,		F_OFFOK },
     94 	{ "old",	f_tty,		0 },
     95 	{ "ospeed",	f_ospeed,	F_NEEDARG },
     96 	{ "ostart",	f_ostart,	0 },
     97 	{ "ostop",	f_ostop,	0 },
     98 	{ "raw",	f_raw,		F_OFFOK },
     99 	{ "rows",	f_rows,		F_NEEDARG },
    100 	{ "sane",	f_sane,		0 },
    101 	{ "size",	f_size,		0 },
    102 	{ "speed",	f_speed,	0 },
    103 	{ "tty",	f_tty,		0 },
    104 };
    105 
    106 static int c_key __P((const void *, const void *));
    107 
    108 static int
    109 c_key(a, b)
    110         const void *a, *b;
    111 {
    112 
    113         return (strcmp(((const struct key *)a)->name,
    114 	    ((const struct key *)b)->name));
    115 }
    116 
    117 int
    118 ksearch(argvp, ip)
    119 	char ***argvp;
    120 	struct info *ip;
    121 {
    122 	char *name;
    123 	struct key *kp, tmp;
    124 
    125 	name = **argvp;
    126 	if (*name == '-') {
    127 		ip->off = 1;
    128 		++name;
    129 	} else
    130 		ip->off = 0;
    131 
    132 	tmp.name = name;
    133 	if (!(kp = (struct key *)bsearch(&tmp, keys,
    134 	    sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key)))
    135 		return (0);
    136 	if (!(kp->flags & F_OFFOK) && ip->off) {
    137 		warnx("illegal option -- %s", name);
    138 		usage();
    139 	}
    140 	if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) {
    141 		warnx("option requires an argument -- %s", name);
    142 		usage();
    143 	}
    144 	kp->f(ip);
    145 	return (1);
    146 }
    147 
    148 void
    149 f_all(ip)
    150 	struct info *ip;
    151 {
    152 	print(&ip->t, &ip->win, ip->ldisc, BSD);
    153 }
    154 
    155 void
    156 f_cbreak(ip)
    157 	struct info *ip;
    158 {
    159 
    160 	if (ip->off)
    161 		f_sane(ip);
    162 	else {
    163 		ip->t.c_iflag |= BRKINT|IXON|IMAXBEL;
    164 		ip->t.c_oflag |= OPOST;
    165 		ip->t.c_lflag |= ISIG|IEXTEN;
    166 		ip->t.c_lflag &= ~ICANON;
    167 		ip->set = 1;
    168 	}
    169 }
    170 
    171 void
    172 f_columns(ip)
    173 	struct info *ip;
    174 {
    175 
    176 	ip->win.ws_col = atoi(ip->arg);
    177 	ip->wset = 1;
    178 }
    179 
    180 void
    181 f_dec(ip)
    182 	struct info *ip;
    183 {
    184 
    185 	ip->t.c_cc[VERASE] = (u_char)0177;
    186 	ip->t.c_cc[VKILL] = CTRL('u');
    187 	ip->t.c_cc[VINTR] = CTRL('c');
    188 	ip->t.c_lflag &= ~ECHOPRT;
    189 	ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL;
    190 	ip->t.c_iflag &= ~IXANY;
    191 	ip->set = 1;
    192 }
    193 
    194 void
    195 f_everything(ip)
    196 	struct info *ip;
    197 {
    198 
    199 	print(&ip->t, &ip->win, ip->ldisc, BSD);
    200 }
    201 
    202 void
    203 f_extproc(ip)
    204 	struct info *ip;
    205 {
    206 
    207 	if (ip->off) {
    208 		int tmp = 0;
    209 		(void)ioctl(ip->fd, TIOCEXT, &tmp);
    210 	} else {
    211 		int tmp = 1;
    212 		(void)ioctl(ip->fd, TIOCEXT, &tmp);
    213 	}
    214 	ip->set = 1;
    215 }
    216 
    217 void
    218 f_ispeed(ip)
    219 	struct info *ip;
    220 {
    221 
    222 	cfsetispeed(&ip->t, atoi(ip->arg));
    223 	ip->set = 1;
    224 }
    225 
    226 void
    227 f_nl(ip)
    228 	struct info *ip;
    229 {
    230 
    231 	if (ip->off) {
    232 		ip->t.c_iflag |= ICRNL;
    233 		ip->t.c_oflag |= ONLCR;
    234 	} else {
    235 		ip->t.c_iflag &= ~ICRNL;
    236 		ip->t.c_oflag &= ~ONLCR;
    237 	}
    238 	ip->set = 1;
    239 }
    240 
    241 void
    242 f_ospeed(ip)
    243 	struct info *ip;
    244 {
    245 
    246 	cfsetospeed(&ip->t, atoi(ip->arg));
    247 	ip->set = 1;
    248 }
    249 
    250 void
    251 f_raw(ip)
    252 	struct info *ip;
    253 {
    254 
    255 	if (ip->off)
    256 		f_sane(ip);
    257 	else {
    258 		cfmakeraw(&ip->t);
    259 		ip->t.c_cflag &= ~(CSIZE|PARENB);
    260 		ip->t.c_cflag |= CS8;
    261 		ip->set = 1;
    262 	}
    263 }
    264 
    265 void
    266 f_rows(ip)
    267 	struct info *ip;
    268 {
    269 
    270 	ip->win.ws_row = atoi(ip->arg);
    271 	ip->wset = 1;
    272 }
    273 
    274 void
    275 f_sane(ip)
    276 	struct info *ip;
    277 {
    278 
    279 	ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & (CLOCAL|CRTSCTS|CDTRCTS));
    280 	ip->t.c_iflag = TTYDEF_IFLAG;
    281 	ip->t.c_iflag |= ICRNL;
    282 	/* preserve user-preference flags in lflag */
    283 #define	LKEEP	(ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
    284 	ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP);
    285 	ip->t.c_oflag = TTYDEF_OFLAG;
    286 	ip->set = 1;
    287 }
    288 
    289 void
    290 f_size(ip)
    291 	struct info *ip;
    292 {
    293 
    294 	(void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col);
    295 }
    296 
    297 void
    298 f_speed(ip)
    299 	struct info *ip;
    300 {
    301 
    302 	(void)printf("%d\n", cfgetospeed(&ip->t));
    303 }
    304 
    305 /* ARGSUSED */
    306 void
    307 f_tty(ip)
    308 	struct info *ip;
    309 {
    310 	int tmp;
    311 
    312 	tmp = TTYDISC;
    313 	if (ioctl(0, TIOCSETD, &tmp) < 0)
    314 		err(1, "TIOCSETD");
    315 }
    316 
    317 void
    318 f_ostart(ip)
    319 	struct info *ip;
    320 {
    321 	if (ioctl (0, TIOCSTART) < 0)
    322 		err(1, "TIOCSTART");
    323 }
    324 
    325 void
    326 f_ostop(ip)
    327 	struct info *ip;
    328 {
    329 	if (ioctl (0, TIOCSTOP) < 0)
    330 		err(1, "TIOCSTOP");
    331 }
    332