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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (c) 2006, Tilghman Lesher. All rights reserved.
*
* Tilghman Lesher <app_morsecode__v001@the-tilghman.com>
*
* This code is released by the author with no restrictions on usage.
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
*/
/*! \file
*
* \brief Morsecode application
*
* \author Tilghman Lesher <app_morsecode__v001@the-tilghman.com>
*
* \ingroup applications
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision: 7221 $")
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/options.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/indications.h"
static char *tdesc = "Morse code";
static char *app_morsecode = "Morsecode";
static char *morsecode_synopsis = "Plays morse code";
static char *morsecode_descrip =
"Usage: Morsecode(<string>)\n"
"Plays the Morse code equivalent of the passed string\n";
STANDARD_LOCAL_USER;
LOCAL_USER_DECL;
#define TONE 800
#define DITLEN 80
static char *morsecode[] = {
"", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", /* 0-15 */
"", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", /* 16-31 */
" ", /* 32 - <space> */
".-.-.-", /* 33 - ! */
".-..-.", /* 34 - " */
"", /* 35 - # */
"", /* 36 - $ */
"", /* 37 - % */
"", /* 38 - & */
".----.", /* 39 - ' */
"-.--.-", /* 40 - ( */
"-.--.-", /* 41 - ) */
"", /* 42 - * */
"", /* 43 - + */
"--..--", /* 44 - , */
"-....-", /* 45 - - */
".-.-.-", /* 46 - . */
"-··-·", /* 47 - / */
"-----", ".----", "..---", "...--", "....-", ".....", "-....", "--...", "---..", "----.", /* 48-57 - 0-9 */
"---...", /* 58 - : */
"-·-·-·", /* 59 - ; */
"", /* 60 - < */
"-...-", /* 61 - = */
"", /* 62 - > */
"..--..", /* 63 - ? */
".--.-.", /* 64 - @ */
".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---", "-.-", ".-..", "--",
"-.", "---", ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--..",
"-.--.-", /* 91 - [ (really '(') */
"-··-·", /* 92 - \ (really '/') */
"-.--.-", /* 93 - ] (really ')') */
"", /* 94 - ^ */
"··--·-", /* 95 - _ */
".----.", /* 96 - ` */
".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---", "-.-", ".-..", "--",
"-.", "---", ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--..",
"-.--.-", /* 123 - { (really '(') */
"", /* 124 - | */
"-.--.-", /* 125 - } (really ')') */
"-··-·", /* 126 - ~ (really bar) */
"· · ·", /* 127 - <del> (error) */
};
static void playtone(struct ast_channel *chan, int tone, int len)
{
char dtmf[20];
snprintf(dtmf, sizeof(dtmf), "%d/%d", tone, DITLEN * len);
ast_playtones_start(chan, 0, dtmf, 0);
ast_safe_sleep(chan, DITLEN * len);
ast_playtones_stop(chan);
}
static int morsecode_exec(struct ast_channel *chan, void *data)
{
int res=0;
char *digit;
struct localuser *u;
LOCAL_USER_ADD(u);
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "Syntax: Morsecode(<string>) - no argument found\n");
LOCAL_USER_REMOVE(u);
return 0;
}
for (digit = data; *digit; digit++) {
char *dahdit;
if (*digit < 0) {
continue;
}
for (dahdit = morsecode[(int)*digit]; *dahdit; dahdit++) {
if (*dahdit == '-') {
playtone(chan, TONE, 3);
} else if (*dahdit == '.') {
playtone(chan, TONE, 1);
} else {
/* Account for ditlen of silence immediately following */
playtone(chan, 0, 2);
}
/* Pause slightly between each dit and dah */
playtone(chan, 0, 1);
}
/* Pause between characters */
playtone(chan, 0, 2);
}
LOCAL_USER_REMOVE(u);
return res;
}
int unload_module(void)
{
int res;
res = ast_unregister_application(app_morsecode);
STANDARD_HANGUP_LOCALUSERS;
return res;
}
int load_module(void)
{
return ast_register_application(app_morsecode, morsecode_exec, morsecode_synopsis, morsecode_descrip);
}
char *description(void)
{
return tdesc;
}
int usecount(void)
{
int res;
STANDARD_USECOUNT(res);
return res;
}
char *key()
{
return ASTERISK_GPL_KEY;
}
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