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modes.c revision 1.7
      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. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 /*static char sccsid[] = "from: @(#)modes.c	8.3 (Berkeley) 4/2/94";*/
     36 static char *rcsid = "$Id: modes.c,v 1.7 1994/09/20 04:52:07 mycroft Exp $";
     37 #endif /* not lint */
     38 
     39 #include <sys/types.h>
     40 #include <stddef.h>
     41 #include <string.h>
     42 #include "stty.h"
     43 
     44 struct modes {
     45 	char *name;
     46 	long set;
     47 	long unset;
     48 };
     49 
     50 /*
     51  * The code in optlist() depends on minus options following regular
     52  * options, i.e. "foo" must immediately precede "-foo".
     53  */
     54 struct modes cmodes[] = {
     55 	{ "cs5",	CS5, CSIZE },
     56 	{ "cs6",	CS6, CSIZE },
     57 	{ "cs7",	CS7, CSIZE },
     58 	{ "cs8",	CS8, CSIZE },
     59 	{ "cstopb",	CSTOPB, 0 },
     60 	{ "-cstopb",	0, CSTOPB },
     61 	{ "cread",	CREAD, 0 },
     62 	{ "-cread",	0, CREAD },
     63 	{ "parenb",	PARENB, 0 },
     64 	{ "-parenb",	0, PARENB },
     65 	{ "parodd",	PARODD, 0 },
     66 	{ "-parodd",	0, PARODD },
     67 	{ "parity",	PARENB | CS7, PARODD | CSIZE },
     68 	{ "-parity",	CS8, PARODD | PARENB | CSIZE },
     69 	{ "evenp",	PARENB | CS7, PARODD | CSIZE },
     70 	{ "-evenp",	CS8, PARODD | PARENB | CSIZE },
     71 	{ "oddp",	PARENB | CS7 | PARODD, CSIZE },
     72 	{ "-oddp",	CS8, PARODD | PARENB | CSIZE },
     73 	{ "pass8",	CS8, PARODD | PARENB | CSIZE },
     74 	{ "-pass8",	PARENB | CS7, PARODD | CSIZE },
     75 	{ "hupcl",	HUPCL, 0 },
     76 	{ "-hupcl",	0, HUPCL },
     77 	{ "hup",	HUPCL, 0 },
     78 	{ "-hup",	0, HUPCL },
     79 	{ "clocal",	CLOCAL, 0 },
     80 	{ "-clocal",	0, CLOCAL },
     81 	{ "crtscts",	CRTSCTS, 0 },
     82 	{ "-crtscts",	0, CRTSCTS },
     83 	{ "mdmbuf",	MDMBUF, 0 },
     84 	{ "-mdmbuf",	0, MDMBUF },
     85 	{ NULL },
     86 };
     87 
     88 struct modes imodes[] = {
     89 	{ "ignbrk",	IGNBRK, 0 },
     90 	{ "-ignbrk",	0, IGNBRK },
     91 	{ "brkint",	BRKINT, 0 },
     92 	{ "-brkint",	0, BRKINT },
     93 	{ "ignpar",	IGNPAR, 0 },
     94 	{ "-ignpar",	0, IGNPAR },
     95 	{ "parmrk",	PARMRK, 0 },
     96 	{ "-parmrk",	0, PARMRK },
     97 	{ "inpck",	INPCK, 0 },
     98 	{ "-inpck",	0, INPCK },
     99 	{ "istrip",	ISTRIP, 0 },
    100 	{ "-istrip",	0, ISTRIP },
    101 	{ "inlcr",	INLCR, 0 },
    102 	{ "-inlcr",	0, INLCR },
    103 	{ "igncr",	IGNCR, 0 },
    104 	{ "-igncr",	0, IGNCR },
    105 	{ "icrnl",	ICRNL, 0 },
    106 	{ "-icrnl",	0, ICRNL },
    107 	{ "ixon",	IXON, 0 },
    108 	{ "-ixon",	0, IXON },
    109 	{ "flow",	IXON, 0 },
    110 	{ "-flow",	0, IXON },
    111 	{ "ixoff",	IXOFF, 0 },
    112 	{ "-ixoff",	0, IXOFF },
    113 	{ "tandem",	IXOFF, 0 },
    114 	{ "-tandem",	0, IXOFF },
    115 	{ "ixany",	IXANY, 0 },
    116 	{ "-ixany",	0, IXANY },
    117 	{ "decctlq",	0, IXANY },
    118 	{ "-decctlq",	IXANY, 0 },
    119 	{ "imaxbel",	IMAXBEL, 0 },
    120 	{ "-imaxbel",	0, IMAXBEL },
    121 	{ NULL },
    122 };
    123 
    124 struct modes lmodes[] = {
    125 	{ "echo",	ECHO, 0 },
    126 	{ "-echo",	0, ECHO },
    127 	{ "echoe",	ECHOE, 0 },
    128 	{ "-echoe",	0, ECHOE },
    129 	{ "crterase",	ECHOE, 0 },
    130 	{ "-crterase",	0, ECHOE },
    131 	{ "crtbs",	ECHOE, 0 },	/* crtbs not supported, close enough */
    132 	{ "-crtbs",	0, ECHOE },
    133 	{ "echok",	ECHOK, 0 },
    134 	{ "-echok",	0, ECHOK },
    135 	{ "echoke",	ECHOKE, 0 },
    136 	{ "-echoke",	0, ECHOKE },
    137 	{ "crtkill",	ECHOKE, 0 },
    138 	{ "-crtkill",	0, ECHOKE },
    139 	{ "altwerase",	ALTWERASE, 0 },
    140 	{ "-altwerase",	0, ALTWERASE },
    141 	{ "iexten",	IEXTEN, 0 },
    142 	{ "-iexten",	0, IEXTEN },
    143 	{ "echonl",	ECHONL, 0 },
    144 	{ "-echonl",	0, ECHONL },
    145 	{ "echoctl",	ECHOCTL, 0 },
    146 	{ "-echoctl",	0, ECHOCTL },
    147 	{ "ctlecho",	ECHOCTL, 0 },
    148 	{ "-ctlecho",	0, ECHOCTL },
    149 	{ "echoprt",	ECHOPRT, 0 },
    150 	{ "-echoprt",	0, ECHOPRT },
    151 	{ "prterase",	ECHOPRT, 0 },
    152 	{ "-prterase",	0, ECHOPRT },
    153 	{ "isig",	ISIG, 0 },
    154 	{ "-isig",	0, ISIG },
    155 	{ "icanon",	ICANON, 0 },
    156 	{ "-icanon",	0, ICANON },
    157 	{ "noflsh",	NOFLSH, 0 },
    158 	{ "-noflsh",	0, NOFLSH },
    159 	{ "tostop",	TOSTOP, 0 },
    160 	{ "-tostop",	0, TOSTOP },
    161 	{ "flusho",	FLUSHO, 0 },
    162 	{ "-flusho",	0, FLUSHO },
    163 	{ "pendin",	PENDIN, 0 },
    164 	{ "-pendin",	0, PENDIN },
    165 	{ "crt",	ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
    166 	{ "-crt",	ECHOK, ECHOE|ECHOKE|ECHOCTL },
    167 	{ "newcrt",	ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
    168 	{ "-newcrt",	ECHOK, ECHOE|ECHOKE|ECHOCTL },
    169 	{ "nokerninfo",	NOKERNINFO, 0 },
    170 	{ "-nokerninfo",0, NOKERNINFO },
    171 	{ "kerninfo",	0, NOKERNINFO },
    172 	{ "-kerninfo",	NOKERNINFO, 0 },
    173 	{ NULL },
    174 };
    175 
    176 struct modes omodes[] = {
    177 	{ "opost",	OPOST, 0 },
    178 	{ "-opost",	0, OPOST },
    179 	{ "litout",	0, OPOST },
    180 	{ "-litout",	OPOST, 0 },
    181 	{ "onlcr",	ONLCR, 0 },
    182 	{ "-onlcr",	0, ONLCR },
    183 	{ "tabs",	0, OXTABS },		/* "preserve" tabs */
    184 	{ "-tabs",	OXTABS, 0 },
    185 	{ "oxtabs",	OXTABS, 0 },
    186 	{ "-oxtabs",	0, OXTABS },
    187 	{ NULL },
    188 };
    189 
    190 #define	CHK(s)	(*name == s[0] && !strcmp(name, s))
    191 
    192 int
    193 msearch(argvp, ip)
    194 	char ***argvp;
    195 	struct info *ip;
    196 {
    197 	struct modes *mp;
    198 	char *name;
    199 
    200 	name = **argvp;
    201 
    202 	for (mp = cmodes; mp->name; ++mp)
    203 		if (CHK(mp->name)) {
    204 			ip->t.c_cflag &= ~mp->unset;
    205 			ip->t.c_cflag |= mp->set;
    206 			ip->set = 1;
    207 			return (1);
    208 		}
    209 	for (mp = imodes; mp->name; ++mp)
    210 		if (CHK(mp->name)) {
    211 			ip->t.c_iflag &= ~mp->unset;
    212 			ip->t.c_iflag |= mp->set;
    213 			ip->set = 1;
    214 			return (1);
    215 		}
    216 	for (mp = lmodes; mp->name; ++mp)
    217 		if (CHK(mp->name)) {
    218 			ip->t.c_lflag &= ~mp->unset;
    219 			ip->t.c_lflag |= mp->set;
    220 			ip->set = 1;
    221 			return (1);
    222 		}
    223 	for (mp = omodes; mp->name; ++mp)
    224 		if (CHK(mp->name)) {
    225 			ip->t.c_oflag &= ~mp->unset;
    226 			ip->t.c_oflag |= mp->set;
    227 			ip->set = 1;
    228 			return (1);
    229 		}
    230 	return (0);
    231 }
    232