705aad98c6
asserted. Some development boards for example will reset on DTR, and some radio interfaces will transmit on RTS. This patch allows "stty -f /dev/ttyu9.init -rtsdtr" to prevent RTS and DTR from being asserted on open(), allowing these devices to be used without problems. Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D20031
249 lines
6.9 KiB
C
249 lines
6.9 KiB
C
/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)modes.c 8.3 (Berkeley) 4/2/94";
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#endif
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#endif /* not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <stddef.h>
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#include <string.h>
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#include "stty.h"
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int msearch(char ***, struct info *);
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struct modes {
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const char *name;
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long set;
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long unset;
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};
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/*
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* The code in optlist() depends on minus options following regular
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* options, i.e. "foo" must immediately precede "-foo".
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*/
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static const struct modes cmodes[] = {
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{ "cs5", CS5, CSIZE },
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{ "cs6", CS6, CSIZE },
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{ "cs7", CS7, CSIZE },
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{ "cs8", CS8, CSIZE },
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{ "cstopb", CSTOPB, 0 },
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{ "-cstopb", 0, CSTOPB },
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{ "cread", CREAD, 0 },
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{ "-cread", 0, CREAD },
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{ "parenb", PARENB, 0 },
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{ "-parenb", 0, PARENB },
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{ "parodd", PARODD, 0 },
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{ "-parodd", 0, PARODD },
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{ "parity", PARENB | CS7, PARODD | CSIZE },
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{ "-parity", CS8, PARODD | PARENB | CSIZE },
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{ "evenp", PARENB | CS7, PARODD | CSIZE },
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{ "-evenp", CS8, PARODD | PARENB | CSIZE },
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{ "oddp", PARENB | CS7 | PARODD, CSIZE },
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{ "-oddp", CS8, PARODD | PARENB | CSIZE },
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{ "pass8", CS8, PARODD | PARENB | CSIZE },
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{ "-pass8", PARENB | CS7, PARODD | CSIZE },
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{ "hupcl", HUPCL, 0 },
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{ "-hupcl", 0, HUPCL },
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{ "hup", HUPCL, 0 },
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{ "-hup", 0, HUPCL },
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{ "clocal", CLOCAL, 0 },
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{ "-clocal", 0, CLOCAL },
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{ "crtscts", CRTSCTS, 0 },
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{ "-crtscts", 0, CRTSCTS },
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{ "ctsflow", CCTS_OFLOW, 0 },
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{ "-ctsflow", 0, CCTS_OFLOW },
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{ "dsrflow", CDSR_OFLOW, 0 },
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{ "-dsrflow", 0, CDSR_OFLOW },
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{ "dtrflow", CDTR_IFLOW, 0 },
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{ "-dtrflow", 0, CDTR_IFLOW },
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{ "rtsflow", CRTS_IFLOW, 0 },
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{ "-rtsflow", 0, CRTS_IFLOW },
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{ "mdmbuf", MDMBUF, 0 },
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{ "-mdmbuf", 0, MDMBUF },
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{ "rtsdtr", 0, CNO_RTSDTR },
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{ "-rtsdtr", CNO_RTSDTR, 0 },
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{ NULL, 0, 0 },
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};
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static const struct modes imodes[] = {
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{ "ignbrk", IGNBRK, 0 },
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{ "-ignbrk", 0, IGNBRK },
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{ "brkint", BRKINT, 0 },
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{ "-brkint", 0, BRKINT },
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{ "ignpar", IGNPAR, 0 },
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{ "-ignpar", 0, IGNPAR },
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{ "parmrk", PARMRK, 0 },
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{ "-parmrk", 0, PARMRK },
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{ "inpck", INPCK, 0 },
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{ "-inpck", 0, INPCK },
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{ "istrip", ISTRIP, 0 },
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{ "-istrip", 0, ISTRIP },
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{ "inlcr", INLCR, 0 },
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{ "-inlcr", 0, INLCR },
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{ "igncr", IGNCR, 0 },
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{ "-igncr", 0, IGNCR },
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{ "icrnl", ICRNL, 0 },
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{ "-icrnl", 0, ICRNL },
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{ "ixon", IXON, 0 },
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{ "-ixon", 0, IXON },
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{ "flow", IXON, 0 },
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{ "-flow", 0, IXON },
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{ "ixoff", IXOFF, 0 },
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{ "-ixoff", 0, IXOFF },
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{ "tandem", IXOFF, 0 },
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{ "-tandem", 0, IXOFF },
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{ "ixany", IXANY, 0 },
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{ "-ixany", 0, IXANY },
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{ "decctlq", 0, IXANY },
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{ "-decctlq", IXANY, 0 },
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{ "imaxbel", IMAXBEL, 0 },
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{ "-imaxbel", 0, IMAXBEL },
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{ NULL, 0, 0 },
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};
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static const struct modes lmodes[] = {
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{ "echo", ECHO, 0 },
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{ "-echo", 0, ECHO },
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{ "echoe", ECHOE, 0 },
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{ "-echoe", 0, ECHOE },
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{ "crterase", ECHOE, 0 },
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{ "-crterase", 0, ECHOE },
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{ "crtbs", ECHOE, 0 }, /* crtbs not supported, close enough */
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{ "-crtbs", 0, ECHOE },
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{ "echok", ECHOK, 0 },
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{ "-echok", 0, ECHOK },
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{ "echoke", ECHOKE, 0 },
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{ "-echoke", 0, ECHOKE },
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{ "crtkill", ECHOKE, 0 },
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{ "-crtkill", 0, ECHOKE },
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{ "altwerase", ALTWERASE, 0 },
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{ "-altwerase", 0, ALTWERASE },
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{ "iexten", IEXTEN, 0 },
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{ "-iexten", 0, IEXTEN },
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{ "echonl", ECHONL, 0 },
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{ "-echonl", 0, ECHONL },
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{ "echoctl", ECHOCTL, 0 },
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{ "-echoctl", 0, ECHOCTL },
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{ "ctlecho", ECHOCTL, 0 },
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{ "-ctlecho", 0, ECHOCTL },
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{ "echoprt", ECHOPRT, 0 },
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{ "-echoprt", 0, ECHOPRT },
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{ "prterase", ECHOPRT, 0 },
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{ "-prterase", 0, ECHOPRT },
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{ "isig", ISIG, 0 },
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{ "-isig", 0, ISIG },
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{ "icanon", ICANON, 0 },
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{ "-icanon", 0, ICANON },
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{ "noflsh", NOFLSH, 0 },
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{ "-noflsh", 0, NOFLSH },
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{ "tostop", TOSTOP, 0 },
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{ "-tostop", 0, TOSTOP },
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{ "flusho", FLUSHO, 0 },
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{ "-flusho", 0, FLUSHO },
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{ "pendin", PENDIN, 0 },
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{ "-pendin", 0, PENDIN },
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{ "crt", ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
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{ "-crt", ECHOK, ECHOE|ECHOKE|ECHOCTL },
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{ "newcrt", ECHOE|ECHOKE|ECHOCTL, ECHOK|ECHOPRT },
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{ "-newcrt", ECHOK, ECHOE|ECHOKE|ECHOCTL },
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{ "nokerninfo", NOKERNINFO, 0 },
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{ "-nokerninfo",0, NOKERNINFO },
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{ "kerninfo", 0, NOKERNINFO },
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{ "-kerninfo", NOKERNINFO, 0 },
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{ NULL, 0, 0 },
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};
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static const struct modes omodes[] = {
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{ "opost", OPOST, 0 },
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{ "-opost", 0, OPOST },
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{ "litout", 0, OPOST },
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{ "-litout", OPOST, 0 },
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{ "onlcr", ONLCR, 0 },
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{ "-onlcr", 0, ONLCR },
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{ "ocrnl", OCRNL, 0 },
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{ "-ocrnl", 0, OCRNL },
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{ "tabs", TAB0, TABDLY }, /* "preserve" tabs */
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{ "-tabs", TAB3, TABDLY },
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{ "oxtabs", TAB3, TABDLY },
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{ "-oxtabs", TAB0, TABDLY },
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{ "tab0", TAB0, TABDLY },
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{ "tab3", TAB3, TABDLY },
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{ "onocr", ONOCR, 0 },
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{ "-onocr", 0, ONOCR },
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{ "onlret", ONLRET, 0 },
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{ "-onlret", 0, ONLRET },
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{ NULL, 0, 0 },
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};
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#define CHK(s) (*name == s[0] && !strcmp(name, s))
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int
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msearch(char ***argvp, struct info *ip)
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{
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const struct modes *mp;
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char *name;
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name = **argvp;
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for (mp = cmodes; mp->name; ++mp)
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if (CHK(mp->name)) {
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ip->t.c_cflag &= ~mp->unset;
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ip->t.c_cflag |= mp->set;
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ip->set = 1;
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return (1);
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}
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for (mp = imodes; mp->name; ++mp)
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if (CHK(mp->name)) {
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ip->t.c_iflag &= ~mp->unset;
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ip->t.c_iflag |= mp->set;
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ip->set = 1;
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return (1);
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}
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for (mp = lmodes; mp->name; ++mp)
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if (CHK(mp->name)) {
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ip->t.c_lflag &= ~mp->unset;
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ip->t.c_lflag |= mp->set;
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ip->set = 1;
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return (1);
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}
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for (mp = omodes; mp->name; ++mp)
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if (CHK(mp->name)) {
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ip->t.c_oflag &= ~mp->unset;
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ip->t.c_oflag |= mp->set;
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ip->set = 1;
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return (1);
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}
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return (0);
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}
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