Files
asterisk/apps/app_morsecode.c
Luigi Rizzo fdb7f7ba3d Start untangling header inclusion in a way that does not affect
build times - tested, there is no measureable difference before and
after this commit.

In this change:

use asterisk/compat.h to include a small set of system headers:
inttypes.h, unistd.h, stddef.h, stddint.h, sys/types.h, stdarg.h,
stdlib.h, alloca.h, stdio.h

Where available, the inclusion is conditional on HAVE_FOO_H as determined
by autoconf.

Normally, source files should not include any of the above system headers,
and instead use either "asterisk.h" or "asterisk/compat.h" which does it
better. 

For the time being I have left alone second-level directories
(main/db1-ast, etc.).



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89333 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2007-11-16 20:04:58 +00:00

164 lines
4.6 KiB
C

/*
* 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 "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#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 *app_morsecode = "Morsecode";
static char *morsecode_synopsis = "Plays morse code";
static char *morsecode_descrip =
" Morsecode(<string>):\n"
"Plays the Morse code equivalent of the passed string. If the variable\n"
"MORSEDITLEN is set, it will use that value for the length (in ms) of the dit\n"
"(defaults to 80). Additionally, if MORSETONE is set, it will use that tone\n"
"(in Hz). The tone default is 800.\n";
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, len);
ast_playtones_start(chan, 0, dtmf, 0);
ast_safe_sleep(chan, len);
ast_playtones_stop(chan);
}
static int morsecode_exec(struct ast_channel *chan, void *data)
{
int res=0, ditlen, tone;
char *digit;
const char *ditlenc, *tonec;
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "Syntax: Morsecode(<string>) - no argument found\n");
return 0;
}
/* Use variable MORESEDITLEN, if set (else 80) */
ditlenc = pbx_builtin_getvar_helper(chan, "MORSEDITLEN");
if (ast_strlen_zero(ditlenc) || (sscanf(ditlenc, "%d", &ditlen) != 1)) {
ditlen = 80;
}
/* Use variable MORSETONE, if set (else 800) */
tonec = pbx_builtin_getvar_helper(chan, "MORSETONE");
if (ast_strlen_zero(tonec) || (sscanf(tonec, "%d", &tone) != 1)) {
tone = 800;
}
for (digit = data; *digit; digit++) {
int digit2 = *digit;
char *dahdit;
if (digit2 < 0) {
continue;
}
for (dahdit = morsecode[digit2]; *dahdit; dahdit++) {
if (*dahdit == '-') {
playtone(chan, tone, 3 * ditlen);
} else if (*dahdit == '.') {
playtone(chan, tone, 1 * ditlen);
} else {
/* Account for ditlen of silence immediately following */
playtone(chan, 0, 2 * ditlen);
}
/* Pause slightly between each dit and dah */
playtone(chan, 0, 1 * ditlen);
}
/* Pause between characters */
playtone(chan, 0, 2 * ditlen);
}
return res;
}
static int unload_module(void)
{
return ast_unregister_application(app_morsecode);
}
static int load_module(void)
{
return ast_register_application(app_morsecode, morsecode_exec, morsecode_synopsis, morsecode_descrip);
}
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Morse code");