673 lines
15 KiB
C
673 lines
15 KiB
C
/*-
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* Copyright (c) 1988, 1993
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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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/*
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* Taught to send *real* morse by Lyndon Nerenberg (VE6BBM)
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* <lyndon@orthanc.ca>
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*/
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static const char copyright[] =
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"@(#) Copyright (c) 1988, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#if 0
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static char sccsid[] = "@(#)morse.c 8.1 (Berkeley) 5/31/93";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#include <sys/time.h>
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#include <sys/ioctl.h>
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#include <ctype.h>
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#include <err.h>
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#include <fcntl.h>
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#include <langinfo.h>
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#include <locale.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#ifdef __FreeBSD__
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/* Always use the speaker, let the open fail if -p is selected */
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#define SPEAKER "/dev/speaker"
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#endif
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#define WHITESPACE " \t\n"
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#define DELIMITERS " \t"
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#ifdef SPEAKER
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#include <dev/speaker/speaker.h>
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#endif
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struct morsetab {
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const char inchar;
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const char *morse;
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};
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static const struct morsetab mtab[] = {
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/* letters */
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{'a', ".-"},
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{'b', "-..."},
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{'c', "-.-."},
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{'d', "-.."},
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{'e', "."},
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{'f', "..-."},
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{'g', "--."},
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{'h', "...."},
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{'i', ".."},
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{'j', ".---"},
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{'k', "-.-"},
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{'l', ".-.."},
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{'m', "--"},
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{'n', "-."},
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{'o', "---"},
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{'p', ".--."},
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{'q', "--.-"},
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{'r', ".-."},
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{'s', "..."},
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{'t', "-"},
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{'u', "..-"},
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{'v', "...-"},
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{'w', ".--"},
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{'x', "-..-"},
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{'y', "-.--"},
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{'z', "--.."},
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/* digits */
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{'0', "-----"},
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{'1', ".----"},
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{'2', "..---"},
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{'3', "...--"},
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{'4', "....-"},
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{'5', "....."},
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{'6', "-...."},
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{'7', "--..."},
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{'8', "---.."},
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{'9', "----."},
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/* punctuation */
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{',', "--..--"},
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{'.', ".-.-.-"},
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{'"', ".-..-."},
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{'!', "..--."},
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{'?', "..--.."},
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{'/', "-..-."},
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{'-', "-....-"},
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{'=', "-...-"}, /* BT */
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{':', "---..."},
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{';', "-.-.-."},
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{'(', "-.--."}, /* KN */
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{')', "-.--.-"},
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{'$', "...-..-"},
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{'+', ".-.-."}, /* AR */
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{'@', ".--.-."}, /* AC */
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{'_', "..--.-"},
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{'\'', ".----."},
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/* prosigns without already assigned values */
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{'#', ".-..."}, /* AS */
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{'&', "...-.-"}, /* SK */
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{'*', "...-."}, /* VE */
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{'%', "-...-.-"}, /* BK */
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{'\0', ""}
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};
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/*
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* Code-points for some Latin1 chars in ISO-8859-1 encoding.
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* UTF-8 encoded chars in the comments.
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*/
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static const struct morsetab iso8859_1tab[] = {
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{'\340', ".--.-"}, /* à */
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{'\341', ".--.-"}, /* á */
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{'\342', ".--.-"}, /* â */
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{'\344', ".-.-"}, /* ä */
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{'\347', "-.-.."}, /* ç */
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{'\350', "..-.."}, /* è */
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{'\351', "..-.."}, /* é */
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{'\352', "-..-."}, /* ê */
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{'\361', "--.--"}, /* ñ */
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{'\366', "---."}, /* ö */
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{'\374', "..--"}, /* ü */
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{'\0', ""}
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};
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/*
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* Code-points for some Greek chars in ISO-8859-7 encoding.
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* UTF-8 encoded chars in the comments.
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*/
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static const struct morsetab iso8859_7tab[] = {
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/*
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* This table does not implement:
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* - the special sequences for the seven diphthongs,
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* - the punctuation differences.
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* Implementing these features would introduce too many
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* special-cases in the program's main loop.
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* The diphthong sequences are:
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* alpha iota .-.-
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* alpha upsilon ..--
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* epsilon upsilon ---.
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* eta upsilon ...-
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* omicron iota ---..
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* omicron upsilon ..-
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* upsilon iota .---
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* The different punctuation symbols are:
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* ; ..-.-
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* ! --..--
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*/
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{'\341', ".-"}, /* α, alpha */
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{'\334', ".-"}, /* ά, alpha with acute */
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{'\342', "-..."}, /* β, beta */
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{'\343', "--."}, /* γ, gamma */
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{'\344', "-.."}, /* δ, delta */
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{'\345', "."}, /* ε, epsilon */
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{'\335', "."}, /* έ, epsilon with acute */
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{'\346', "--.."}, /* ζ, zeta */
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{'\347', "...."}, /* η, eta */
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{'\336', "...."}, /* ή, eta with acute */
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{'\350', "-.-."}, /* θ, theta */
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{'\351', ".."}, /* ι, iota */
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{'\337', ".."}, /* ί, iota with acute */
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{'\372', ".."}, /* ϊ, iota with diaeresis */
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{'\300', ".."}, /* ΐ, iota with acute and diaeresis */
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{'\352', "-.-"}, /* κ, kappa */
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{'\353', ".-.."}, /* λ, lambda */
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{'\354', "--"}, /* μ, mu */
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{'\355', "-."}, /* ν, nu */
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{'\356', "-..-"}, /* ξ, xi */
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{'\357', "---"}, /* ο, omicron */
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{'\374', "---"}, /* ό, omicron with acute */
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{'\360', ".--."}, /* π, pi */
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{'\361', ".-."}, /* ρ, rho */
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{'\363', "..."}, /* σ, sigma */
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{'\362', "..."}, /* ς, final sigma */
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{'\364', "-"}, /* τ, tau */
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{'\365', "-.--"}, /* υ, upsilon */
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{'\375', "-.--"}, /* ύ, upsilon with acute */
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{'\373', "-.--"}, /* ϋ, upsilon and diaeresis */
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{'\340', "-.--"}, /* ΰ, upsilon with acute and diaeresis */
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{'\366', "..-."}, /* φ, phi */
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{'\367', "----"}, /* χ, chi */
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{'\370', "--.-"}, /* ψ, psi */
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{'\371', ".--"}, /* ω, omega */
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{'\376', ".--"}, /* ώ, omega with acute */
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{'\0', ""}
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};
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/*
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* Code-points for the Cyrillic alphabet in KOI8-R encoding.
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* UTF-8 encoded chars in the comments.
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*/
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static const struct morsetab koi8rtab[] = {
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{'\301', ".-"}, /* а, a */
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{'\302', "-..."}, /* б, be */
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{'\327', ".--"}, /* в, ve */
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{'\307', "--."}, /* г, ge */
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{'\304', "-.."}, /* д, de */
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{'\305', "."}, /* е, ye */
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{'\243', "."}, /* ё, yo, the same as ye */
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{'\326', "...-"}, /* ж, she */
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{'\332', "--.."}, /* з, ze */
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{'\311', ".."}, /* и, i */
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{'\312', ".---"}, /* й, i kratkoye */
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{'\313', "-.-"}, /* к, ka */
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{'\314', ".-.."}, /* л, el */
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{'\315', "--"}, /* м, em */
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{'\316', "-."}, /* н, en */
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{'\317', "---"}, /* о, o */
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{'\320', ".--."}, /* п, pe */
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{'\322', ".-."}, /* р, er */
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{'\323', "..."}, /* с, es */
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{'\324', "-"}, /* т, te */
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{'\325', "..-"}, /* у, u */
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{'\306', "..-."}, /* ф, ef */
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{'\310', "...."}, /* х, kha */
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{'\303', "-.-."}, /* ц, ce */
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{'\336', "---."}, /* ч, che */
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{'\333', "----"}, /* ш, sha */
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{'\335', "--.-"}, /* щ, shcha */
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{'\331', "-.--"}, /* ы, yi */
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{'\330', "-..-"}, /* ь, myakhkij znak */
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{'\334', "..-.."}, /* э, ae */
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{'\300', "..--"}, /* ю, yu */
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{'\321', ".-.-"}, /* я, ya */
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{'\0', ""}
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};
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static void show(const char *), play(const char *), morse(char);
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static void decode (char *), fdecode(FILE *);
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static void ttyout(const char *);
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static void sighandler(int);
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static int pflag, lflag, rflag, sflag, eflag;
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static int wpm = 20; /* effective words per minute */
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static int cpm; /* effective words per minute between
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* characters */
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#define FREQUENCY 600
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static int freq = FREQUENCY;
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static char *device; /* for tty-controlled generator */
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#define DASH_LEN 3
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#define CHAR_SPACE 3
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#define WORD_SPACE (7 - CHAR_SPACE - 1)
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static float dot_clock;
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static float cdot_clock;
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static int spkr, line;
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static struct termios otty, ntty;
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static int olflags;
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#ifdef SPEAKER
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static tone_t sound;
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#define GETOPTOPTS "c:d:ef:lprsw:"
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#define USAGE \
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"usage: morse [-elprs] [-d device] [-w speed] [-c speed] [-f frequency] [string ...]\n"
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#else
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#define GETOPTOPTS "c:d:ef:lrsw:"
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#define USAGE \
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"usage: morse [-elrs] [-d device] [-w speed] [-c speed] [-f frequency] [string ...]\n"
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#endif
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static const struct morsetab *hightab;
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int
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main(int argc, char *argv[])
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{
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int ch, lflags;
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char *p, *codeset;
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while ((ch = getopt(argc, argv, GETOPTOPTS)) != -1)
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switch ((char) ch) {
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case 'c':
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cpm = atoi(optarg);
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break;
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case 'd':
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device = optarg;
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break;
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case 'e':
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eflag = 1;
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setvbuf(stdout, 0, _IONBF, 0);
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break;
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case 'f':
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freq = atoi(optarg);
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break;
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case 'l':
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lflag = 1;
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break;
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#ifdef SPEAKER
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case 'p':
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pflag = 1;
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break;
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#endif
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case 'r':
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rflag = 1;
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break;
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case 's':
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sflag = 1;
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break;
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case 'w':
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wpm = atoi(optarg);
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break;
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case '?':
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default:
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errx(1, USAGE);
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}
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if ((sflag && lflag) || (sflag && rflag) || (lflag && rflag)) {
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errx(1, "morse: only one of -l, -s, and -r allowed\n");
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}
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if ((pflag || device) && (sflag || lflag)) {
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errx(1, "morse: only one of -p, -d and -l, -s allowed\n");
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}
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if (cpm == 0) {
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cpm = wpm;
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}
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if ((pflag || device) && ((wpm < 1) || (wpm > 60) || (cpm < 1) || (cpm > 60))) {
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errx(1, "morse: insane speed\n");
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}
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if ((pflag || device) && (freq == 0)) {
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freq = FREQUENCY;
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}
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#ifdef SPEAKER
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if (pflag) {
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if ((spkr = open(SPEAKER, O_WRONLY, 0)) == -1) {
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err(1, SPEAKER);
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}
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} else
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#endif
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if (device) {
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if ((line = open(device, O_WRONLY | O_NONBLOCK)) == -1) {
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err(1, "open tty line");
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}
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if (tcgetattr(line, &otty) == -1) {
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err(1, "tcgetattr() failed");
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}
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ntty = otty;
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ntty.c_cflag |= CLOCAL;
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tcsetattr(line, TCSANOW, &ntty);
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lflags = fcntl(line, F_GETFL);
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lflags &= ~O_NONBLOCK;
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fcntl(line, F_SETFL, &lflags);
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ioctl(line, TIOCMGET, &lflags);
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lflags &= ~TIOCM_RTS;
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olflags = lflags;
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ioctl(line, TIOCMSET, &lflags);
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(void)signal(SIGHUP, sighandler);
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(void)signal(SIGINT, sighandler);
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(void)signal(SIGQUIT, sighandler);
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(void)signal(SIGTERM, sighandler);
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}
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if (pflag || device) {
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dot_clock = wpm / 2.4; /* dots/sec */
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dot_clock = 1 / dot_clock; /* duration of a dot */
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dot_clock = dot_clock / 2; /* dot_clock runs at twice */
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/* the dot rate */
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dot_clock = dot_clock * 100; /* scale for ioctl */
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cdot_clock = cpm / 2.4; /* dots/sec */
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cdot_clock = 1 / cdot_clock; /* duration of a dot */
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cdot_clock = cdot_clock / 2; /* dot_clock runs at twice */
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/* the dot rate */
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cdot_clock = cdot_clock * 100; /* scale for ioctl */
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}
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argc -= optind;
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argv += optind;
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if (setlocale(LC_CTYPE, "") != NULL &&
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*(codeset = nl_langinfo(CODESET)) != '\0') {
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if (strcmp(codeset, "KOI8-R") == 0)
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hightab = koi8rtab;
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else if (strcmp(codeset, "ISO8859-1") == 0 ||
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strcmp(codeset, "ISO8859-15") == 0)
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hightab = iso8859_1tab;
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else if (strcmp(codeset, "ISO8859-7") == 0)
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hightab = iso8859_7tab;
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}
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if (lflag) {
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printf("m");
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}
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if (rflag) {
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if (*argv) {
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do {
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p = strtok(*argv, DELIMITERS);
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if (p == NULL) {
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decode(*argv);
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}
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else {
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while (p) {
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decode(p);
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p = strtok(NULL, DELIMITERS);
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}
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}
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} while (*++argv);
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putchar('\n');
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} else {
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fdecode(stdin);
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}
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}
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else if (*argv) {
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do {
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for (p = *argv; *p; ++p) {
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if (eflag)
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putchar(*p);
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morse(*p);
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}
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if (eflag)
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putchar(' ');
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morse(' ');
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} while (*++argv);
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} else {
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while ((ch = getchar()) != EOF) {
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if (eflag)
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putchar(ch);
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morse(ch);
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}
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}
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if (device)
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tcsetattr(line, TCSANOW, &otty);
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exit(0);
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}
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static void
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morse(char c)
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{
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const struct morsetab *m;
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if (isalpha((unsigned char)c))
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c = tolower((unsigned char)c);
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if ((c == '\r') || (c == '\n'))
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c = ' ';
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if (c == ' ') {
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if (pflag)
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play(" ");
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else if (device)
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ttyout(" ");
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else if (lflag)
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printf("\n");
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else
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show("");
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return;
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}
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for (m = ((unsigned char)c < 0x80? mtab: hightab);
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m != NULL && m->inchar != '\0';
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m++) {
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if (m->inchar == c) {
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if (pflag) {
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play(m->morse);
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} else if (device) {
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ttyout(m->morse);
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} else
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show(m->morse);
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}
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}
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}
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static void
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show(const char *s)
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{
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if (lflag) {
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printf("%s ", s);
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} else if (sflag) {
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printf(" %s\n", s);
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} else {
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for (; *s; ++s)
|
||
printf(" %s", *s == '.' ? *(s + 1) == '\0' ? "dit" :
|
||
"di" : "dah");
|
||
printf("\n");
|
||
}
|
||
}
|
||
|
||
static void
|
||
play(const char *s)
|
||
{
|
||
#ifdef SPEAKER
|
||
const char *c;
|
||
|
||
for (c = s; *c != '\0'; c++) {
|
||
switch (*c) {
|
||
case '.':
|
||
sound.frequency = freq;
|
||
sound.duration = dot_clock;
|
||
break;
|
||
case '-':
|
||
sound.frequency = freq;
|
||
sound.duration = dot_clock * DASH_LEN;
|
||
break;
|
||
case ' ':
|
||
sound.frequency = 0;
|
||
sound.duration = cdot_clock * WORD_SPACE;
|
||
break;
|
||
default:
|
||
sound.duration = 0;
|
||
}
|
||
if (sound.duration) {
|
||
if (ioctl(spkr, SPKRTONE, &sound) == -1) {
|
||
err(1, "ioctl play");
|
||
}
|
||
}
|
||
sound.frequency = 0;
|
||
sound.duration = dot_clock;
|
||
if (ioctl(spkr, SPKRTONE, &sound) == -1) {
|
||
err(1, "ioctl rest");
|
||
}
|
||
}
|
||
sound.frequency = 0;
|
||
sound.duration = cdot_clock * CHAR_SPACE;
|
||
ioctl(spkr, SPKRTONE, &sound);
|
||
#endif
|
||
}
|
||
|
||
static void
|
||
ttyout(const char *s)
|
||
{
|
||
const char *c;
|
||
int duration, on, lflags;
|
||
|
||
for (c = s; *c != '\0'; c++) {
|
||
switch (*c) {
|
||
case '.':
|
||
on = 1;
|
||
duration = dot_clock;
|
||
break;
|
||
case '-':
|
||
on = 1;
|
||
duration = dot_clock * DASH_LEN;
|
||
break;
|
||
case ' ':
|
||
on = 0;
|
||
duration = cdot_clock * WORD_SPACE;
|
||
break;
|
||
default:
|
||
on = 0;
|
||
duration = 0;
|
||
}
|
||
if (on) {
|
||
ioctl(line, TIOCMGET, &lflags);
|
||
lflags |= TIOCM_RTS;
|
||
ioctl(line, TIOCMSET, &lflags);
|
||
}
|
||
duration *= 10000;
|
||
if (duration)
|
||
usleep(duration);
|
||
ioctl(line, TIOCMGET, &lflags);
|
||
lflags &= ~TIOCM_RTS;
|
||
ioctl(line, TIOCMSET, &lflags);
|
||
duration = dot_clock * 10000;
|
||
usleep(duration);
|
||
}
|
||
duration = cdot_clock * CHAR_SPACE * 10000;
|
||
usleep(duration);
|
||
}
|
||
|
||
void
|
||
fdecode(FILE *stream)
|
||
{
|
||
char *n, *p, *s;
|
||
char buf[BUFSIZ];
|
||
|
||
s = buf;
|
||
while (fgets(s, BUFSIZ - (s - buf), stream)) {
|
||
p = buf;
|
||
|
||
while (*p && isblank(*p)) {
|
||
p++;
|
||
}
|
||
while (*p && isspace(*p)) {
|
||
p++;
|
||
putchar (' ');
|
||
}
|
||
while (*p) {
|
||
n = strpbrk(p, WHITESPACE);
|
||
if (n == NULL) {
|
||
/* The token was interrupted at the end
|
||
* of the buffer. Shift it to the begin
|
||
* of the buffer.
|
||
*/
|
||
for (s = buf; *p; *s++ = *p++)
|
||
;
|
||
} else {
|
||
*n = '\0';
|
||
n++;
|
||
decode(p);
|
||
p = n;
|
||
}
|
||
}
|
||
}
|
||
putchar('\n');
|
||
}
|
||
|
||
void
|
||
decode(char *p)
|
||
{
|
||
char c;
|
||
const struct morsetab *m;
|
||
|
||
c = ' ';
|
||
for (m = mtab; m != NULL && m->inchar != '\0'; m++) {
|
||
if (strcmp(m->morse, p) == 0) {
|
||
c = m->inchar;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (c == ' ')
|
||
for (m = hightab; m != NULL && m->inchar != '\0'; m++) {
|
||
if (strcmp(m->morse, p) == 0) {
|
||
c = m->inchar;
|
||
break;
|
||
}
|
||
}
|
||
|
||
putchar(c);
|
||
}
|
||
|
||
static void
|
||
sighandler(int signo)
|
||
{
|
||
|
||
ioctl(line, TIOCMSET, &olflags);
|
||
tcsetattr(line, TCSANOW, &otty);
|
||
|
||
signal(signo, SIG_DFL);
|
||
(void)kill(getpid(), signo);
|
||
}
|