/*      $NetBSD: modes.c,v 1.7 2006/10/22 21:09:47 christos Exp $       */

/*-
* Copyright (c) 1991, 1993, 1994
*      The Regents of the University of California.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)modes.c     8.3 (Berkeley) 4/2/94";
#else
__RCSID("$NetBSD: modes.c,v 1.7 2006/10/22 21:09:47 christos Exp $");
#endif
#endif /* not lint */

#include <sys/param.h>
#include <sys/types.h>
#include <stddef.h>
#include <string.h>
#include <termios.h>
#include "extern.h"

struct modes {
       const char *name;
       long set;
       long unset;
};

/*
* The code in optlist() depends on minus options following regular
* options, i.e. "foo" must immediately precede "-foo".
*/
const struct modes cmodes[] = {
       { "cs5",        CS5, CSIZE },
       { "cs6",        CS6, CSIZE },
       { "cs7",        CS7, CSIZE },
       { "cs8",        CS8, CSIZE },
       { "cstopb",     CSTOPB, 0 },
       { "-cstopb",    0, CSTOPB },
       { "cread",      CREAD, 0 },
       { "-cread",     0, CREAD },
       { "parenb",     PARENB, 0 },
       { "-parenb",    0, PARENB },
       { "parodd",     PARODD, 0 },
       { "-parodd",    0, PARODD },
       { "parity",     PARENB | CS7, PARODD | CSIZE },
       { "-parity",    CS8, PARODD | PARENB | CSIZE },
       { "evenp",      PARENB | CS7, PARODD | CSIZE },
       { "-evenp",     CS8, PARODD | PARENB | CSIZE },
       { "oddp",       PARENB | CS7 | PARODD, CSIZE },
       { "-oddp",      CS8, PARODD | PARENB | CSIZE },
       { "pass8",      CS8, PARODD | PARENB | CSIZE },
       { "-pass8",     PARENB | CS7, PARODD | CSIZE },
       { "hupcl",      HUPCL, 0 },
       { "-hupcl",     0, HUPCL },
       { "hup",        HUPCL, 0 },
       { "-hup",       0, HUPCL },
       { "clocal",     CLOCAL, 0 },
       { "-clocal",    0, CLOCAL },
       { "crtscts",    CRTSCTS, 0 },
       { "-crtscts",   0, CRTSCTS },
       { "cdtrcts",    CDTRCTS, 0 },
       { "-cdtrcts",   0, CDTRCTS },
       { "mdmbuf",     MDMBUF, 0 },
       { "-mdmbuf",    0, MDMBUF },
       { .name = NULL },
};

const struct modes imodes[] = {
       { "ignbrk",     IGNBRK, 0 },
       { "-ignbrk",    0, IGNBRK },
       { "brkint",     BRKINT, 0 },
       { "-brkint",    0, BRKINT },
       { "ignpar",     IGNPAR, 0 },
       { "-ignpar",    0, IGNPAR },
       { "parmrk",     PARMRK, 0 },
       { "-parmrk",    0, PARMRK },
       { "inpck",      INPCK, 0 },
       { "-inpck",     0, INPCK },
       { "istrip",     ISTRIP, 0 },
       { "-istrip",    0, ISTRIP },
       { "inlcr",      INLCR, 0 },
       { "-inlcr",     0, INLCR },
       { "igncr",      IGNCR, 0 },
       { "-igncr",     0, IGNCR },
       { "icrnl",      ICRNL, 0 },
       { "-icrnl",     0, ICRNL },
       { "ixon",       IXON, 0 },
       { "-ixon",      0, IXON },
       { "flow",       IXON, 0 },
       { "-flow",      0, IXON },
       { "ixoff",      IXOFF, 0 },
       { "-ixoff",     0, IXOFF },
       { "tandem",     IXOFF, 0 },
       { "-tandem",    0, IXOFF },
       { "ixany",      IXANY, 0 },
       { "-ixany",     0, IXANY },
       { "decctlq",    0, IXANY },
       { "-decctlq",   IXANY, 0 },
       { "imaxbel",    IMAXBEL, 0 },
       { "-imaxbel",   0, IMAXBEL },
       { .name = NULL },
};

const struct modes lmodes[] = {
       { "echo",       ECHO, 0 },
       { "-echo",      0, ECHO },
       { "echoe",      ECHOE, 0 },
       { "-echoe",     0, ECHOE },
       { "crterase",   ECHOE, 0 },
       { "-crterase",  0, ECHOE },
       { "crtbs",      ECHOE, 0 },     /* crtbs not supported, close enough */
       { "-crtbs",     0, ECHOE },
       { "echok",      ECHOK, 0 },
       { "-echok",     0, ECHOK },
       { "echoke",     ECHOKE, 0 },
       { "-echoke",    0, ECHOKE },
       { "crtkill",    ECHOKE, 0 },
       { "-crtkill",   0, ECHOKE },
       { "altwerase",  ALTWERASE, 0 },
       { "-altwerase", 0, ALTWERASE },
       { "iexten",     IEXTEN, 0 },
       { "-iexten",    0, IEXTEN },
       { "echonl",     ECHONL, 0 },
       { "-echonl",    0, ECHONL },
       { "echoctl",    ECHOCTL, 0 },
       { "-echoctl",   0, ECHOCTL },
       { "ctlecho",    ECHOCTL, 0 },
       { "-ctlecho",   0, ECHOCTL },
       { "echoprt",    ECHOPRT, 0 },
       { "-echoprt",   0, ECHOPRT },
       { "prterase",   ECHOPRT, 0 },
       { "-prterase",  0, ECHOPRT },
       { "isig",       ISIG, 0 },
       { "-isig",      0, ISIG },
       { "icanon",     ICANON, 0 },
       { "-icanon",    0, ICANON },
       { "noflsh",     NOFLSH, 0 },
       { "-noflsh",    0, NOFLSH },
       { "tostop",     TOSTOP, 0 },
       { "-tostop",    0, TOSTOP },
       { "flusho",     FLUSHO, 0 },
       { "-flusho",    0, FLUSHO },
       { "pendin",     PENDIN, 0 },
       { "-pendin",    0, PENDIN },
       { "crt",        ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
       { "-crt",       ECHOK, ECHOE|ECHOKE|ECHOCTL },
       { "newcrt",     ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
       { "-newcrt",    ECHOK, ECHOE|ECHOKE|ECHOCTL },
       { "nokerninfo", NOKERNINFO, 0 },
       { "-nokerninfo",0, NOKERNINFO },
       { "kerninfo",   0, NOKERNINFO },
       { "-kerninfo",  NOKERNINFO, 0 },
       { .name = NULL },
};

const struct modes omodes[] = {
       { "opost",      OPOST, 0 },
       { "-opost",     0, OPOST },
       { "litout",     0, OPOST },
       { "-litout",    OPOST, 0 },
       { "onlcr",      ONLCR, 0 },
       { "-onlcr",     0, ONLCR },
       { "tabs",       0, OXTABS },            /* "preserve" tabs */
       { "-tabs",      OXTABS, 0 },
       { "oxtabs",     OXTABS, 0 },
       { "-oxtabs",    0, OXTABS },
       { .name = NULL },
};

#define CHK(s)  (*name == s[0] && !strcmp(name, s))

int
msearch(char ***argvp, struct info *ip)
{
       const struct modes *mp;
       char *name;

       name = **argvp;

       for (mp = cmodes; mp->name; ++mp)
               if (CHK(mp->name)) {
                       ip->t.c_cflag &= ~mp->unset;
                       ip->t.c_cflag |= mp->set;
                       ip->set = 1;
                       return (1);
               }
       for (mp = imodes; mp->name; ++mp)
               if (CHK(mp->name)) {
                       ip->t.c_iflag &= ~mp->unset;
                       ip->t.c_iflag |= mp->set;
                       ip->set = 1;
                       return (1);
               }
       for (mp = lmodes; mp->name; ++mp)
               if (CHK(mp->name)) {
                       ip->t.c_lflag &= ~mp->unset;
                       ip->t.c_lflag |= mp->set;
                       ip->set = 1;
                       return (1);
               }
       for (mp = omodes; mp->name; ++mp)
               if (CHK(mp->name)) {
                       ip->t.c_oflag &= ~mp->unset;
                       ip->t.c_oflag |= mp->set;
                       ip->set = 1;
                       return (1);
               }
       return (0);
}

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