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/bin/stty/modes.c

https://bitbucket.org/freebsd/freebsd-head/
C | 246 lines | 202 code | 12 blank | 32 comment | 10 complexity | a2ea60959b74814bbbaaac990c8635d4 MD5 | raw file
  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 * 4. 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
 30#ifndef lint
 31#if 0
 32static char sccsid[] = "@(#)modes.c	8.3 (Berkeley) 4/2/94";
 33#endif
 34#endif /* not lint */
 35#include <sys/cdefs.h>
 36__FBSDID("$FreeBSD$");
 37
 38#include <sys/types.h>
 39#include <stddef.h>
 40#include <string.h>
 41#include "stty.h"
 42
 43int msearch(char ***, struct info *);
 44
 45struct modes {
 46	const char *name;
 47	long set;
 48	long unset;
 49};
 50
 51/*
 52 * The code in optlist() depends on minus options following regular
 53 * options, i.e. "foo" must immediately precede "-foo".
 54 */
 55static const struct modes cmodes[] = {
 56	{ "cs5",	CS5, CSIZE },
 57	{ "cs6",	CS6, CSIZE },
 58	{ "cs7",	CS7, CSIZE },
 59	{ "cs8",	CS8, CSIZE },
 60	{ "cstopb",	CSTOPB, 0 },
 61	{ "-cstopb",	0, CSTOPB },
 62	{ "cread",	CREAD, 0 },
 63	{ "-cread",	0, CREAD },
 64	{ "parenb",	PARENB, 0 },
 65	{ "-parenb",	0, PARENB },
 66	{ "parodd",	PARODD, 0 },
 67	{ "-parodd",	0, PARODD },
 68	{ "parity",	PARENB | CS7, PARODD | CSIZE },
 69	{ "-parity",	CS8, PARODD | PARENB | CSIZE },
 70	{ "evenp",	PARENB | CS7, PARODD | CSIZE },
 71	{ "-evenp",	CS8, PARODD | PARENB | CSIZE },
 72	{ "oddp",	PARENB | CS7 | PARODD, CSIZE },
 73	{ "-oddp",	CS8, PARODD | PARENB | CSIZE },
 74	{ "pass8",	CS8, PARODD | PARENB | CSIZE },
 75	{ "-pass8",	PARENB | CS7, PARODD | CSIZE },
 76	{ "hupcl",	HUPCL, 0 },
 77	{ "-hupcl",	0, HUPCL },
 78	{ "hup",	HUPCL, 0 },
 79	{ "-hup",	0, HUPCL },
 80	{ "clocal",	CLOCAL, 0 },
 81	{ "-clocal",	0, CLOCAL },
 82	{ "crtscts",	CRTSCTS, 0 },
 83	{ "-crtscts",	0, CRTSCTS },
 84	{ "ctsflow",	CCTS_OFLOW, 0 },
 85	{ "-ctsflow",	0, CCTS_OFLOW },
 86	{ "dsrflow",	CDSR_OFLOW, 0 },
 87	{ "-dsrflow",	0, CDSR_OFLOW },
 88	{ "dtrflow",	CDTR_IFLOW, 0 },
 89	{ "-dtrflow",	0, CDTR_IFLOW },
 90	{ "rtsflow",	CRTS_IFLOW, 0 },
 91	{ "-rtsflow",	0, CRTS_IFLOW },
 92	{ "mdmbuf",	MDMBUF, 0 },
 93	{ "-mdmbuf",	0, MDMBUF },
 94	{ NULL,		0, 0 },
 95};
 96
 97static const struct modes imodes[] = {
 98	{ "ignbrk",	IGNBRK, 0 },
 99	{ "-ignbrk",	0, IGNBRK },
100	{ "brkint",	BRKINT, 0 },
101	{ "-brkint",	0, BRKINT },
102	{ "ignpar",	IGNPAR, 0 },
103	{ "-ignpar",	0, IGNPAR },
104	{ "parmrk",	PARMRK, 0 },
105	{ "-parmrk",	0, PARMRK },
106	{ "inpck",	INPCK, 0 },
107	{ "-inpck",	0, INPCK },
108	{ "istrip",	ISTRIP, 0 },
109	{ "-istrip",	0, ISTRIP },
110	{ "inlcr",	INLCR, 0 },
111	{ "-inlcr",	0, INLCR },
112	{ "igncr",	IGNCR, 0 },
113	{ "-igncr",	0, IGNCR },
114	{ "icrnl",	ICRNL, 0 },
115	{ "-icrnl",	0, ICRNL },
116	{ "ixon",	IXON, 0 },
117	{ "-ixon",	0, IXON },
118	{ "flow",	IXON, 0 },
119	{ "-flow",	0, IXON },
120	{ "ixoff",	IXOFF, 0 },
121	{ "-ixoff",	0, IXOFF },
122	{ "tandem",	IXOFF, 0 },
123	{ "-tandem",	0, IXOFF },
124	{ "ixany",	IXANY, 0 },
125	{ "-ixany",	0, IXANY },
126	{ "decctlq",	0, IXANY },
127	{ "-decctlq",	IXANY, 0 },
128	{ "imaxbel",	IMAXBEL, 0 },
129	{ "-imaxbel",	0, IMAXBEL },
130	{ NULL,		0, 0 },
131};
132
133static const struct modes lmodes[] = {
134	{ "echo",	ECHO, 0 },
135	{ "-echo",	0, ECHO },
136	{ "echoe",	ECHOE, 0 },
137	{ "-echoe",	0, ECHOE },
138	{ "crterase",	ECHOE, 0 },
139	{ "-crterase",	0, ECHOE },
140	{ "crtbs",	ECHOE, 0 },	/* crtbs not supported, close enough */
141	{ "-crtbs",	0, ECHOE },
142	{ "echok",	ECHOK, 0 },
143	{ "-echok",	0, ECHOK },
144	{ "echoke",	ECHOKE, 0 },
145	{ "-echoke",	0, ECHOKE },
146	{ "crtkill",	ECHOKE, 0 },
147	{ "-crtkill",	0, ECHOKE },
148	{ "altwerase",	ALTWERASE, 0 },
149	{ "-altwerase",	0, ALTWERASE },
150	{ "iexten",	IEXTEN, 0 },
151	{ "-iexten",	0, IEXTEN },
152	{ "echonl",	ECHONL, 0 },
153	{ "-echonl",	0, ECHONL },
154	{ "echoctl",	ECHOCTL, 0 },
155	{ "-echoctl",	0, ECHOCTL },
156	{ "ctlecho",	ECHOCTL, 0 },
157	{ "-ctlecho",	0, ECHOCTL },
158	{ "echoprt",	ECHOPRT, 0 },
159	{ "-echoprt",	0, ECHOPRT },
160	{ "prterase",	ECHOPRT, 0 },
161	{ "-prterase",	0, ECHOPRT },
162	{ "isig",	ISIG, 0 },
163	{ "-isig",	0, ISIG },
164	{ "icanon",	ICANON, 0 },
165	{ "-icanon",	0, ICANON },
166	{ "noflsh",	NOFLSH, 0 },
167	{ "-noflsh",	0, NOFLSH },
168	{ "tostop",	TOSTOP, 0 },
169	{ "-tostop",	0, TOSTOP },
170	{ "flusho",	FLUSHO, 0 },
171	{ "-flusho",	0, FLUSHO },
172	{ "pendin",	PENDIN, 0 },
173	{ "-pendin",	0, PENDIN },
174	{ "crt",	ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
175	{ "-crt",	ECHOK, ECHOE|ECHOKE|ECHOCTL },
176	{ "newcrt",	ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
177	{ "-newcrt",	ECHOK, ECHOE|ECHOKE|ECHOCTL },
178	{ "nokerninfo",	NOKERNINFO, 0 },
179	{ "-nokerninfo",0, NOKERNINFO },
180	{ "kerninfo",	0, NOKERNINFO },
181	{ "-kerninfo",	NOKERNINFO, 0 },
182	{ NULL,		0, 0 },
183};
184
185static const struct modes omodes[] = {
186	{ "opost",	OPOST, 0 },
187	{ "-opost",	0, OPOST },
188	{ "litout",	0, OPOST },
189	{ "-litout",	OPOST, 0 },
190	{ "onlcr",	ONLCR, 0 },
191	{ "-onlcr",	0, ONLCR },
192	{ "ocrnl",	OCRNL, 0 },
193	{ "-ocrnl",	0, OCRNL },
194	{ "tabs",	TAB0, TABDLY },		/* "preserve" tabs */
195	{ "-tabs",	TAB3, TABDLY },
196	{ "oxtabs",	TAB3, TABDLY },
197	{ "-oxtabs",	TAB0, TABDLY },
198	{ "tab0",	TAB0, TABDLY },
199	{ "tab3",	TAB3, TABDLY },
200	{ "onocr",	ONOCR, 0 },
201	{ "-onocr",	0, ONOCR },
202	{ "onlret",	ONLRET, 0 },
203	{ "-onlret",	0, ONLRET },
204	{ NULL,		0, 0 },
205};
206
207#define	CHK(s)	(*name == s[0] && !strcmp(name, s))
208
209int
210msearch(char ***argvp, struct info *ip)
211{
212	const struct modes *mp;
213	char *name;
214
215	name = **argvp;
216
217	for (mp = cmodes; mp->name; ++mp)
218		if (CHK(mp->name)) {
219			ip->t.c_cflag &= ~mp->unset;
220			ip->t.c_cflag |= mp->set;
221			ip->set = 1;
222			return (1);
223		}
224	for (mp = imodes; mp->name; ++mp)
225		if (CHK(mp->name)) {
226			ip->t.c_iflag &= ~mp->unset;
227			ip->t.c_iflag |= mp->set;
228			ip->set = 1;
229			return (1);
230		}
231	for (mp = lmodes; mp->name; ++mp)
232		if (CHK(mp->name)) {
233			ip->t.c_lflag &= ~mp->unset;
234			ip->t.c_lflag |= mp->set;
235			ip->set = 1;
236			return (1);
237		}
238	for (mp = omodes; mp->name; ++mp)
239		if (CHK(mp->name)) {
240			ip->t.c_oflag &= ~mp->unset;
241			ip->t.c_oflag |= mp->set;
242			ip->set = 1;
243			return (1);
244		}
245	return (0);
246}