e6b2e9a750
This patch adds 'const' tags to a number of Asterisk APIs where they are appropriate (where the API already demanded that the function argument not be modified, but the compiler was not informed of that fact). The list includes: - CLI command handlers - CLI command handler arguments - AGI command handlers - AGI command handler arguments - Dialplan application handler arguments - Speech engine API function arguments In addition, various file-scope and function-scope constant arrays got 'const' and/or 'static' qualifiers where they were missing. Review: https://reviewboard.asterisk.org/r/251/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@196072 65c4cc65-6c06-0410-ace0-fbb531ad65f3
185 lines
5.1 KiB
C
185 lines
5.1 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/channel.h"
|
|
#include "asterisk/pbx.h"
|
|
#include "asterisk/module.h"
|
|
#include "asterisk/indications.h"
|
|
|
|
/*** DOCUMENTATION
|
|
<application name="Morsecode" language="en_US">
|
|
<synopsis>
|
|
Plays morse code.
|
|
</synopsis>
|
|
<syntax>
|
|
<parameter name="string" required="true">
|
|
<para>String to playback as morse code to channel</para>
|
|
</parameter>
|
|
</syntax>
|
|
<description>
|
|
<para>Plays the Morse code equivalent of the passed string.</para>
|
|
|
|
<para>This application uses the following variables:</para>
|
|
<variablelist>
|
|
<variable name="MORSEDITLEN">
|
|
<para>Use this value in (ms) for length of dit</para>
|
|
</variable>
|
|
<variable name="MORSETONE">
|
|
<para>The pitch of the tone in (Hz), default is 800</para>
|
|
</variable>
|
|
</variablelist>
|
|
</description>
|
|
<see-also>
|
|
<ref type="application">SayAlpha</ref>
|
|
<ref type="application">SayPhonetic</ref>
|
|
</see-also>
|
|
</application>
|
|
***/
|
|
static const char app_morsecode[] = "Morsecode";
|
|
|
|
static const char * const 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, const char *data)
|
|
{
|
|
int res=0, ditlen, tone;
|
|
const 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) */
|
|
ast_channel_lock(chan);
|
|
ditlenc = pbx_builtin_getvar_helper(chan, "MORSEDITLEN");
|
|
if (ast_strlen_zero(ditlenc) || (sscanf(ditlenc, "%d", &ditlen) != 1)) {
|
|
ditlen = 80;
|
|
}
|
|
ast_channel_unlock(chan);
|
|
|
|
/* Use variable MORSETONE, if set (else 800) */
|
|
ast_channel_lock(chan);
|
|
tonec = pbx_builtin_getvar_helper(chan, "MORSETONE");
|
|
if (ast_strlen_zero(tonec) || (sscanf(tonec, "%d", &tone) != 1)) {
|
|
tone = 800;
|
|
}
|
|
ast_channel_unlock(chan);
|
|
|
|
for (digit = data; *digit; digit++) {
|
|
int digit2 = *digit;
|
|
const 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_xml(app_morsecode, morsecode_exec);
|
|
}
|
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Morse code");
|