bin/stty/modes.c

   1 /* $NetBSD: modes.c,v 1.16 2003/08/07 09:05:41 agc 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[] = "@(#)modes.c     8.3 (Berkeley) 4/2/94";
  36 #else
  37 __RCSID("$NetBSD: modes.c,v 1.16 2003/08/07 09:05:41 agc Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <sys/types.h>
  42
  43 #include <stddef.h>
  44 #include <string.h>
  45
  46 #include "stty.h"
  47 #include "extern.h"
  48
  49 struct modes {
  50         const char *name;
  51         tcflag_t set;
  52         tcflag_t unset;
  53 };
  54
  55 /*
  56  * The code in optlist() depends on minus options following regular
  57  * options, i.e. "foo" must immediately precede "-foo".
  58  */
  59 const struct modes cmodes[] = {
  60         { "cs5",        CS5, CSIZE },
  61         { "cs6",        CS6, CSIZE },
  62         { "cs7",        CS7, CSIZE },
  63         { "cs8",        CS8, CSIZE },
  64         { "cstopb",     CSTOPB, 0 },
  65         { "-cstopb",    0, CSTOPB },
  66         { "cread",      CREAD, 0 },
  67         { "-cread",     0, CREAD },
  68         { "parenb",     PARENB, 0 },
  69         { "-parenb",    0, PARENB },
  70         { "parodd",     PARODD, 0 },
  71         { "-parodd",    0, PARODD },
  72         { "parity",     PARENB | CS7, PARODD | CSIZE },
  73         { "-parity",    CS8, PARODD | PARENB | CSIZE },
  74         { "evenp",      PARENB | CS7, PARODD | CSIZE },
  75         { "-evenp",     CS8, PARODD | PARENB | CSIZE },
  76         { "oddp",       PARENB | CS7 | PARODD, CSIZE },
  77         { "-oddp",      CS8, PARODD | PARENB | CSIZE },
  78         { "pass8",      CS8, PARODD | PARENB | CSIZE },
  79         { "-pass8",     PARENB | CS7, PARODD | CSIZE },
  80         { "hupcl",      HUPCL, 0 },
  81         { "-hupcl",     0, HUPCL },
  82         { "hup",        HUPCL, 0 },
  83         { "-hup",       0, HUPCL },
  84         { "clocal",     CLOCAL, 0 },
  85         { "-clocal",    0, CLOCAL },
  86         { "crtscts",    CRTSCTS, 0 },
  87         { "-crtscts",   0, CRTSCTS },
  88         { "mdmbuf",     MDMBUF, 0 },
  89         { "-mdmbuf",    0, MDMBUF },
  90         { "cdtrcts",    CDTRCTS, 0 },
  91         { "-cdtrcts",   0, CDTRCTS },
  92         { .name = NULL },
  93 };
  94
  95 const struct modes imodes[] = {
  96         { "ignbrk",     IGNBRK, 0 },
  97         { "-ignbrk",    0, IGNBRK },
  98         { "brkint",     BRKINT, 0 },
  99         { "-brkint",    0, BRKINT },
 100         { "ignpar",     IGNPAR, 0 },
 101         { "-ignpar",    0, IGNPAR },
 102         { "parmrk",     PARMRK, 0 },
 103         { "-parmrk",    0, PARMRK },
 104         { "inpck",      INPCK, 0 },
 105         { "-inpck",     0, INPCK },
 106         { "istrip",     ISTRIP, 0 },
 107         { "-istrip",    0, ISTRIP },
 108         { "inlcr",      INLCR, 0 },
 109         { "-inlcr",     0, INLCR },
 110         { "igncr",      IGNCR, 0 },
 111         { "-igncr",     0, IGNCR },
 112         { "icrnl",      ICRNL, 0 },
 113         { "-icrnl",     0, ICRNL },
 114         { "ixon",       IXON, 0 },
 115         { "-ixon",      0, IXON },
 116         { "flow",       IXON, 0 },
 117         { "-flow",      0, IXON },
 118         { "ixoff",      IXOFF, 0 },
 119         { "-ixoff",     0, IXOFF },
 120         { "tandem",     IXOFF, 0 },
 121         { "-tandem",    0, IXOFF },
 122         { "ixany",      IXANY, 0 },
 123         { "-ixany",     0, IXANY },
 124         { "decctlq",    0, IXANY },
 125         { "-decctlq",   IXANY, 0 },
 126         { "imaxbel",    IMAXBEL, 0 },
 127         { "-imaxbel",   0, IMAXBEL },
 128         { .name = NULL },
 129 };
 130
 131 const struct modes lmodes[] = {
 132         { "echo",       ECHO, 0 },
 133         { "-echo",      0, ECHO },
 134         { "echoe",      ECHOE, 0 },
 135         { "-echoe",     0, ECHOE },
 136         { "crterase",   ECHOE, 0 },
 137         { "-crterase",  0, ECHOE },
 138         { "crtbs",      ECHOE, 0 },     /* crtbs not supported, close enough */
 139         { "-crtbs",     0, ECHOE },
 140         { "echok",      ECHOK, 0 },
 141         { "-echok",     0, ECHOK },
 142         { "echoke",     ECHOKE, 0 },
 143         { "-echoke",    0, ECHOKE },
 144         { "crtkill",    ECHOKE, 0 },
 145         { "-crtkill",   0, ECHOKE },
 146         { "altwerase",  ALTWERASE, 0 },
 147         { "-altwerase", 0, ALTWERASE },
 148         { "iexten",     IEXTEN, 0 },
 149         { "-iexten",    0, IEXTEN },
 150         { "echonl",     ECHONL, 0 },
 151         { "-echonl",    0, ECHONL },
 152         { "echoctl",    ECHOCTL, 0 },
 153         { "-echoctl",   0, ECHOCTL },
 154         { "ctlecho",    ECHOCTL, 0 },
 155         { "-ctlecho",   0, ECHOCTL },
 156         { "echoprt",    ECHOPRT, 0 },
 157         { "-echoprt",   0, ECHOPRT },
 158         { "prterase",   ECHOPRT, 0 },
 159         { "-prterase",  0, ECHOPRT },
 160         { "isig",       ISIG, 0 },
 161         { "-isig",      0, ISIG },
 162         { "icanon",     ICANON, 0 },
 163         { "-icanon",    0, ICANON },
 164         { "noflsh",     NOFLSH, 0 },
 165         { "-noflsh",    0, NOFLSH },
 166         { "tostop",     TOSTOP, 0 },
 167         { "-tostop",    0, TOSTOP },
 168         { "flusho",     FLUSHO, 0 },
 169         { "-flusho",    0, FLUSHO },
 170         { "pendin",     PENDIN, 0 },
 171         { "-pendin",    0, PENDIN },
 172         { "crt",        ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
 173         { "-crt",       ECHOK, ECHOE|ECHOKE|ECHOCTL },
 174         { "newcrt",     ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
 175         { "-newcrt",    ECHOK, ECHOE|ECHOKE|ECHOCTL },
 176         { "nokerninfo", NOKERNINFO, 0 },
 177         { "-nokerninfo",0, NOKERNINFO },
 178         { "kerninfo",   0, NOKERNINFO },
 179         { "-kerninfo",  NOKERNINFO, 0 },
 180         { .name = NULL },
 181 };
 182
 183 const struct modes omodes[] = {
 184         { "opost",      OPOST, 0 },
 185         { "-opost",     0, OPOST },
 186         { "litout",     0, OPOST },
 187         { "-litout",    OPOST, 0 },
 188         { "onlcr",      ONLCR, 0 },
 189         { "-onlcr",     0, ONLCR },
 190         { "ocrnl",      OCRNL, 0 },
 191         { "-ocrnl",     0, OCRNL },
 192         { "tabs",       0, OXTABS },            /* "preserve" tabs */
 193         { "-tabs",      OXTABS, 0 },
 194         { "oxtabs",     OXTABS, 0 },
 195         { "-oxtabs",    0, OXTABS },
 196         { "onocr",      ONOCR, 0 },
 197         { "-onocr",     0, ONOCR },
 198         { "onlret",     ONLRET, 0 },
 199         { "-onlret",    0, ONLRET },
 200         { .name = NULL },
 201 };
 202
 203 #define CHK(s)  (!strcmp(name, s))
 204
 205 int
 206 msearch(char ***argvp, struct info *ip)
 207 {
 208         const struct modes *mp;
 209         char *name;
 210
 211         name = **argvp;
 212
 213         for (mp = cmodes; mp->name; ++mp)
 214                 if (CHK(mp->name)) {
 215                         ip->t.c_cflag &= ~mp->unset;
 216                         ip->t.c_cflag |= mp->set;
 217                         ip->set = 1;
 218                         return (1);
 219                 }
 220         for (mp = imodes; mp->name; ++mp)
 221                 if (CHK(mp->name)) {
 222                         ip->t.c_iflag &= ~mp->unset;
 223                         ip->t.c_iflag |= mp->set;
 224                         ip->set = 1;
 225                         return (1);
 226                 }
 227         for (mp = lmodes; mp->name; ++mp)
 228                 if (CHK(mp->name)) {
 229                         ip->t.c_lflag &= ~mp->unset;
 230                         ip->t.c_lflag |= mp->set;
 231                         ip->set = 1;
 232                         return (1);
 233                 }
 234         for (mp = omodes; mp->name; ++mp)
 235                 if (CHK(mp->name)) {
 236                         ip->t.c_oflag &= ~mp->unset;
 237                         ip->t.c_oflag |= mp->set;
 238                         ip->set = 1;
 239                         return (1);
 240                 }
 241         return (0);
 242 }