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  * $DragonFly: src/bin/stty/modes.c,v 1.4 2003/09/28 14:39:15 hmp Exp $
  32  */
  33
  34 #include <sys/types.h>
  35 #include <stddef.h>
  36 #include <string.h>
  37 #include "stty.h"
  38
  39 int msearch (char ***, struct info *);
  40
  41 struct modes {
  42         const char *name;
  43         long set;
  44         long unset;
  45 };
  46
  47 /*
  48  * The code in optlist() depends on minus options following regular
  49  * options, i.e. "foo" must immediately precede "-foo".
  50  */
  51 struct modes cmodes[] = {
  52         { "cs5",        CS5, CSIZE },
  53         { "cs6",        CS6, CSIZE },
  54         { "cs7",        CS7, CSIZE },
  55         { "cs8",        CS8, CSIZE },
  56         { "cstopb",     CSTOPB, 0 },
  57         { "-cstopb",    0, CSTOPB },
  58         { "cread",      CREAD, 0 },
  59         { "-cread",     0, CREAD },
  60         { "parenb",     PARENB, 0 },
  61         { "-parenb",    0, PARENB },
  62         { "parodd",     PARODD, 0 },
  63         { "-parodd",    0, PARODD },
  64         { "parity",     PARENB | CS7, PARODD | CSIZE },
  65         { "-parity",    CS8, PARODD | PARENB | CSIZE },
  66         { "evenp",      PARENB | CS7, PARODD | CSIZE },
  67         { "-evenp",     CS8, PARODD | PARENB | CSIZE },
  68         { "oddp",       PARENB | CS7 | PARODD, CSIZE },
  69         { "-oddp",      CS8, PARODD | PARENB | CSIZE },
  70         { "pass8",      CS8, PARODD | PARENB | CSIZE },
  71         { "-pass8",     PARENB | CS7, PARODD | CSIZE },
  72         { "hupcl",      HUPCL, 0 },
  73         { "-hupcl",     0, HUPCL },
  74         { "hup",        HUPCL, 0 },
  75         { "-hup",       0, HUPCL },
  76         { "clocal",     CLOCAL, 0 },
  77         { "-clocal",    0, CLOCAL },
  78         { "crtscts",    CRTSCTS, 0 },
  79         { "-crtscts",   0, CRTSCTS },
  80         { "ctsflow",    CCTS_OFLOW, 0 },
  81         { "-ctsflow",   0, CCTS_OFLOW },
  82         { "dsrflow",    CDSR_OFLOW, 0 },
  83         { "-dsrflow",   0, CDSR_OFLOW },
  84         { "dtrflow",    CDTR_IFLOW, 0 },
  85         { "-dtrflow",   0, CDTR_IFLOW },
  86         { "rtsflow",    CRTS_IFLOW, 0 },
  87         { "-rtsflow",   0, CRTS_IFLOW },
  88         { "mdmbuf",     MDMBUF, 0 },
  89         { "-mdmbuf",    0, MDMBUF },
  90         { NULL,         0, 0 },
  91 };
  92
  93 struct modes imodes[] = {
  94         { "ignbrk",     IGNBRK, 0 },
  95         { "-ignbrk",    0, IGNBRK },
  96         { "brkint",     BRKINT, 0 },
  97         { "-brkint",    0, BRKINT },
  98         { "ignpar",     IGNPAR, 0 },
  99         { "-ignpar",    0, IGNPAR },
 100         { "parmrk",     PARMRK, 0 },
 101         { "-parmrk",    0, PARMRK },
 102         { "inpck",      INPCK, 0 },
 103         { "-inpck",     0, INPCK },
 104         { "istrip",     ISTRIP, 0 },
 105         { "-istrip",    0, ISTRIP },
 106         { "inlcr",      INLCR, 0 },
 107         { "-inlcr",     0, INLCR },
 108         { "igncr",      IGNCR, 0 },
 109         { "-igncr",     0, IGNCR },
 110         { "icrnl",      ICRNL, 0 },
 111         { "-icrnl",     0, ICRNL },
 112         { "ixon",       IXON, 0 },
 113         { "-ixon",      0, IXON },
 114         { "flow",       IXON, 0 },
 115         { "-flow",      0, IXON },
 116         { "ixoff",      IXOFF, 0 },
 117         { "-ixoff",     0, IXOFF },
 118         { "tandem",     IXOFF, 0 },
 119         { "-tandem",    0, IXOFF },
 120         { "ixany",      IXANY, 0 },
 121         { "-ixany",     0, IXANY },
 122         { "decctlq",    0, IXANY },
 123         { "-decctlq",   IXANY, 0 },
 124         { "imaxbel",    IMAXBEL, 0 },
 125         { "-imaxbel",   0, IMAXBEL },
 126         { NULL,         0, 0 },
 127 };
 128
 129 struct modes lmodes[] = {
 130         { "echo",       ECHO, 0 },
 131         { "-echo",      0, ECHO },
 132         { "echoe",      ECHOE, 0 },
 133         { "-echoe",     0, ECHOE },
 134         { "crterase",   ECHOE, 0 },
 135         { "-crterase",  0, ECHOE },
 136         { "crtbs",      ECHOE, 0 },     /* crtbs not supported, close enough */
 137         { "-crtbs",     0, ECHOE },
 138         { "echok",      ECHOK, 0 },
 139         { "-echok",     0, ECHOK },
 140         { "echoke",     ECHOKE, 0 },
 141         { "-echoke",    0, ECHOKE },
 142         { "crtkill",    ECHOKE, 0 },
 143         { "-crtkill",   0, ECHOKE },
 144         { "altwerase",  ALTWERASE, 0 },
 145         { "-altwerase", 0, ALTWERASE },
 146         { "iexten",     IEXTEN, 0 },
 147         { "-iexten",    0, IEXTEN },
 148         { "echonl",     ECHONL, 0 },
 149         { "-echonl",    0, ECHONL },
 150         { "echoctl",    ECHOCTL, 0 },
 151         { "-echoctl",   0, ECHOCTL },
 152         { "ctlecho",    ECHOCTL, 0 },
 153         { "-ctlecho",   0, ECHOCTL },
 154         { "echoprt",    ECHOPRT, 0 },
 155         { "-echoprt",   0, ECHOPRT },
 156         { "prterase",   ECHOPRT, 0 },
 157         { "-prterase",  0, ECHOPRT },
 158         { "isig",       ISIG, 0 },
 159         { "-isig",      0, ISIG },
 160         { "icanon",     ICANON, 0 },
 161         { "-icanon",    0, ICANON },
 162         { "noflsh",     NOFLSH, 0 },
 163         { "-noflsh",    0, NOFLSH },
 164         { "tostop",     TOSTOP, 0 },
 165         { "-tostop",    0, TOSTOP },
 166         { "flusho",     FLUSHO, 0 },
 167         { "-flusho",    0, FLUSHO },
 168         { "pendin",     PENDIN, 0 },
 169         { "-pendin",    0, PENDIN },
 170         { "crt",        ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
 171         { "-crt",       ECHOK, ECHOE|ECHOKE|ECHOCTL },
 172         { "newcrt",     ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
 173         { "-newcrt",    ECHOK, ECHOE|ECHOKE|ECHOCTL },
 174         { "nokerninfo", NOKERNINFO, 0 },
 175         { "-nokerninfo",0, NOKERNINFO },
 176         { "kerninfo",   0, NOKERNINFO },
 177         { "-kerninfo",  NOKERNINFO, 0 },
 178         { NULL,         0, 0 },
 179 };
 180
 181 struct modes omodes[] = {
 182         { "opost",      OPOST, 0 },
 183         { "-opost",     0, OPOST },
 184         { "litout",     0, OPOST },
 185         { "-litout",    OPOST, 0 },
 186         { "onlcr",      ONLCR, 0 },
 187         { "-onlcr",     0, ONLCR },
 188         { "ocrnl",      OCRNL, 0 },
 189         { "-ocrnl",     0, OCRNL },
 190         { "tabs",       0, OXTABS },            /* "preserve" tabs */
 191         { "-tabs",      OXTABS, 0 },
 192         { "oxtabs",     OXTABS, 0 },
 193         { "-oxtabs",    0, OXTABS },
 194         { "onocr",      ONOCR, 0 },
 195         { "-onocr",     0, ONOCR },
 196         { "onlret",     ONLRET, 0 },
 197         { "-onlret",    0, ONLRET },
 198         { NULL,         0, 0 },
 199 };
 200
 201 #define CHK(s)  (*name == s[0] && !strcmp(name, s))
 202
 203 int
 204 msearch(char ***argvp, struct info *ip)
 205 {
 206         struct modes *mp;
 207         char *name;
 208
 209         name = **argvp;
 210
 211         for (mp = cmodes; mp->name; ++mp)
 212                 if (CHK(mp->name)) {
 213                         ip->t.c_cflag &= ~mp->unset;
 214                         ip->t.c_cflag |= mp->set;
 215                         ip->set = 1;
 216                         return (1);
 217                 }
 218         for (mp = imodes; mp->name; ++mp)
 219                 if (CHK(mp->name)) {
 220                         ip->t.c_iflag &= ~mp->unset;
 221                         ip->t.c_iflag |= mp->set;
 222                         ip->set = 1;
 223                         return (1);
 224                 }
 225         for (mp = lmodes; mp->name; ++mp)
 226                 if (CHK(mp->name)) {
 227                         ip->t.c_lflag &= ~mp->unset;
 228                         ip->t.c_lflag |= mp->set;
 229                         ip->set = 1;
 230                         return (1);
 231                 }
 232         for (mp = omodes; mp->name; ++mp)
 233                 if (CHK(mp->name)) {
 234                         ip->t.c_oflag &= ~mp->unset;
 235                         ip->t.c_oflag |= mp->set;
 236                         ip->set = 1;
 237                         return (1);
 238                 }
 239         return (0);
 240 }