bin/stty/modes.c

   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  * @(#)modes.c  8.3 (Berkeley) 4/2/94
  30  * $FreeBSD: src/bin/stty/modes.c,v 1.8.2.2 2001/07/04 22:40:00 kris Exp $
  31  */
  32
  33 #include <sys/types.h>
  34 #include <stddef.h>
  35 #include <string.h>
  36 #include "stty.h"
  37
  38 int msearch (char ***, struct info *);
  39
  40 struct modes {
  41         const char *name;
  42         long set;
  43         long unset;
  44 };
  45
  46 /*
  47  * The code in optlist() depends on minus options following regular
  48  * options, i.e. "foo" must immediately precede "-foo".
  49  */
  50 static struct modes cmodes[] = {
  51         { "cs5",        CS5, CSIZE },
  52         { "cs6",        CS6, CSIZE },
  53         { "cs7",        CS7, CSIZE },
  54         { "cs8",        CS8, CSIZE },
  55         { "cstopb",     CSTOPB, 0 },
  56         { "-cstopb",    0, CSTOPB },
  57         { "cread",      CREAD, 0 },
  58         { "-cread",     0, CREAD },
  59         { "parenb",     PARENB, 0 },
  60         { "-parenb",    0, PARENB },
  61         { "parodd",     PARODD, 0 },
  62         { "-parodd",    0, PARODD },
  63         { "parity",     PARENB | CS7, PARODD | CSIZE },
  64         { "-parity",    CS8, PARODD | PARENB | CSIZE },
  65         { "evenp",      PARENB | CS7, PARODD | CSIZE },
  66         { "-evenp",     CS8, PARODD | PARENB | CSIZE },
  67         { "oddp",       PARENB | CS7 | PARODD, CSIZE },
  68         { "-oddp",      CS8, PARODD | PARENB | CSIZE },
  69         { "pass8",      CS8, PARODD | PARENB | CSIZE },
  70         { "-pass8",     PARENB | CS7, PARODD | CSIZE },
  71         { "hupcl",      HUPCL, 0 },
  72         { "-hupcl",     0, HUPCL },
  73         { "hup",        HUPCL, 0 },
  74         { "-hup",       0, HUPCL },
  75         { "clocal",     CLOCAL, 0 },
  76         { "-clocal",    0, CLOCAL },
  77         { "crtscts",    CRTSCTS, 0 },
  78         { "-crtscts",   0, CRTSCTS },
  79         { "ctsflow",    CCTS_OFLOW, 0 },
  80         { "-ctsflow",   0, CCTS_OFLOW },
  81         { "dsrflow",    CDSR_OFLOW, 0 },
  82         { "-dsrflow",   0, CDSR_OFLOW },
  83         { "dtrflow",    CDTR_IFLOW, 0 },
  84         { "-dtrflow",   0, CDTR_IFLOW },
  85         { "rtsflow",    CRTS_IFLOW, 0 },
  86         { "-rtsflow",   0, CRTS_IFLOW },
  87         { "mdmbuf",     MDMBUF, 0 },
  88         { "-mdmbuf",    0, MDMBUF },
  89         { NULL,         0, 0 },
  90 };
  91
  92 static struct modes imodes[] = {
  93         { "ignbrk",     IGNBRK, 0 },
  94         { "-ignbrk",    0, IGNBRK },
  95         { "brkint",     BRKINT, 0 },
  96         { "-brkint",    0, BRKINT },
  97         { "ignpar",     IGNPAR, 0 },
  98         { "-ignpar",    0, IGNPAR },
  99         { "parmrk",     PARMRK, 0 },
 100         { "-parmrk",    0, PARMRK },
 101         { "inpck",      INPCK, 0 },
 102         { "-inpck",     0, INPCK },
 103         { "istrip",     ISTRIP, 0 },
 104         { "-istrip",    0, ISTRIP },
 105         { "inlcr",      INLCR, 0 },
 106         { "-inlcr",     0, INLCR },
 107         { "igncr",      IGNCR, 0 },
 108         { "-igncr",     0, IGNCR },
 109         { "icrnl",      ICRNL, 0 },
 110         { "-icrnl",     0, ICRNL },
 111         { "ixon",       IXON, 0 },
 112         { "-ixon",      0, IXON },
 113         { "flow",       IXON, 0 },
 114         { "-flow",      0, IXON },
 115         { "ixoff",      IXOFF, 0 },
 116         { "-ixoff",     0, IXOFF },
 117         { "tandem",     IXOFF, 0 },
 118         { "-tandem",    0, IXOFF },
 119         { "ixany",      IXANY, 0 },
 120         { "-ixany",     0, IXANY },
 121         { "decctlq",    0, IXANY },
 122         { "-decctlq",   IXANY, 0 },
 123         { "imaxbel",    IMAXBEL, 0 },
 124         { "-imaxbel",   0, IMAXBEL },
 125         { NULL,         0, 0 },
 126 };
 127
 128 static struct modes lmodes[] = {
 129         { "echo",       ECHO, 0 },
 130         { "-echo",      0, ECHO },
 131         { "echoe",      ECHOE, 0 },
 132         { "-echoe",     0, ECHOE },
 133         { "crterase",   ECHOE, 0 },
 134         { "-crterase",  0, ECHOE },
 135         { "crtbs",      ECHOE, 0 },     /* crtbs not supported, close enough */
 136         { "-crtbs",     0, ECHOE },
 137         { "echok",      ECHOK, 0 },
 138         { "-echok",     0, ECHOK },
 139         { "echoke",     ECHOKE, 0 },
 140         { "-echoke",    0, ECHOKE },
 141         { "crtkill",    ECHOKE, 0 },
 142         { "-crtkill",   0, ECHOKE },
 143         { "altwerase",  ALTWERASE, 0 },
 144         { "-altwerase", 0, ALTWERASE },
 145         { "iexten",     IEXTEN, 0 },
 146         { "-iexten",    0, IEXTEN },
 147         { "echonl",     ECHONL, 0 },
 148         { "-echonl",    0, ECHONL },
 149         { "echoctl",    ECHOCTL, 0 },
 150         { "-echoctl",   0, ECHOCTL },
 151         { "ctlecho",    ECHOCTL, 0 },
 152         { "-ctlecho",   0, ECHOCTL },
 153         { "echoprt",    ECHOPRT, 0 },
 154         { "-echoprt",   0, ECHOPRT },
 155         { "prterase",   ECHOPRT, 0 },
 156         { "-prterase",  0, ECHOPRT },
 157         { "isig",       ISIG, 0 },
 158         { "-isig",      0, ISIG },
 159         { "icanon",     ICANON, 0 },
 160         { "-icanon",    0, ICANON },
 161         { "noflsh",     NOFLSH, 0 },
 162         { "-noflsh",    0, NOFLSH },
 163         { "tostop",     TOSTOP, 0 },
 164         { "-tostop",    0, TOSTOP },
 165         { "flusho",     FLUSHO, 0 },
 166         { "-flusho",    0, FLUSHO },
 167         { "pendin",     PENDIN, 0 },
 168         { "-pendin",    0, PENDIN },
 169         { "crt",        ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
 170         { "-crt",       ECHOK, ECHOE|ECHOKE|ECHOCTL },
 171         { "newcrt",     ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
 172         { "-newcrt",    ECHOK, ECHOE|ECHOKE|ECHOCTL },
 173         { "nokerninfo", NOKERNINFO, 0 },
 174         { "-nokerninfo",0, NOKERNINFO },
 175         { "kerninfo",   0, NOKERNINFO },
 176         { "-kerninfo",  NOKERNINFO, 0 },
 177         { NULL,         0, 0 },
 178 };
 179
 180 static struct modes omodes[] = {
 181         { "opost",      OPOST, 0 },
 182         { "-opost",     0, OPOST },
 183         { "litout",     0, OPOST },
 184         { "-litout",    OPOST, 0 },
 185         { "onlcr",      ONLCR, 0 },
 186         { "-onlcr",     0, ONLCR },
 187         { "ocrnl",      OCRNL, 0 },
 188         { "-ocrnl",     0, OCRNL },
 189         { "tabs",       TAB0, TABDLY },         /* "preserve" tabs */
 190         { "-tabs",      TAB3, TABDLY },
 191         { "oxtabs",     TAB3, TABDLY },
 192         { "-oxtabs",    TAB0, TABDLY },
 193         { "tab0",       TAB0, TABDLY },
 194         { "tab3",       TAB3, TABDLY },
 195         { "onocr",      ONOCR, 0 },
 196         { "-onocr",     0, ONOCR },
 197         { "onlret",     ONLRET, 0 },
 198         { "-onlret",    0, ONLRET },
 199         { NULL,         0, 0 },
 200 };
 201
 202 #define CHK(s)  (*name == s[0] && !strcmp(name, s))
 203
 204 int
 205 msearch(char ***argvp, struct info *ip)
 206 {
 207         struct modes *mp;
 208         char *name;
 209
 210         name = **argvp;
 211
 212         for (mp = cmodes; mp->name; ++mp)
 213                 if (CHK(mp->name)) {
 214                         ip->t.c_cflag &= ~mp->unset;
 215                         ip->t.c_cflag |= mp->set;
 216                         ip->set = 1;
 217                         return (1);
 218                 }
 219         for (mp = imodes; mp->name; ++mp)
 220                 if (CHK(mp->name)) {
 221                         ip->t.c_iflag &= ~mp->unset;
 222                         ip->t.c_iflag |= mp->set;
 223                         ip->set = 1;
 224                         return (1);
 225                 }
 226         for (mp = lmodes; mp->name; ++mp)
 227                 if (CHK(mp->name)) {
 228                         ip->t.c_lflag &= ~mp->unset;
 229                         ip->t.c_lflag |= mp->set;
 230                         ip->set = 1;
 231                         return (1);
 232                 }
 233         for (mp = omodes; mp->name; ++mp)
 234                 if (CHK(mp->name)) {
 235                         ip->t.c_oflag &= ~mp->unset;
 236                         ip->t.c_oflag |= mp->set;
 237                         ip->set = 1;
 238                         return (1);
 239                 }
 240         return (0);
 241 }