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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
146 lines
3.6 KiB
C
146 lines
3.6 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief App to send DTMF digits
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*
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* \author Mark Spencer <markster@digium.com>
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*
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* \ingroup applications
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/app.h"
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#include "asterisk/manager.h"
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#include "asterisk/channel.h"
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/*** DOCUMENTATION
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<application name="SendDTMF" language="en_US">
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<synopsis>
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Sends arbitrary DTMF digits
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</synopsis>
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<syntax>
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<parameter name="digits" required="true">
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<para>List of digits 0-9,*#,abcd</para>
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</parameter>
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<parameter name="timeout_ms" required="false">
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<para>Amount of time to wait in ms between tones. (defaults to .25s)</para>
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</parameter>
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<parameter name="duration_ms" required="false">
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<para>Duration of each digit</para>
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</parameter>
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</syntax>
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<description>
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<para>DTMF digits sent to a channel with half second pause</para>
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<para>It will pass all digits or terminate if it encounters an error.</para>
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</description>
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<see-also>
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<ref type="application">Read</ref>
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</see-also>
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</application>
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***/
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static char *app = "SendDTMF";
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static int senddtmf_exec(struct ast_channel *chan, const char *vdata)
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{
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int res = 0;
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char *data;
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int timeout = 0, duration = 0;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(digits);
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AST_APP_ARG(timeout);
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AST_APP_ARG(duration);
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);
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if (ast_strlen_zero(vdata)) {
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ast_log(LOG_WARNING, "SendDTMF requires an argument (digits or *#aAbBcCdD)\n");
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return 0;
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}
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data = ast_strdupa(vdata);
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AST_STANDARD_APP_ARGS(args, data);
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if (!ast_strlen_zero(args.timeout))
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timeout = atoi(args.timeout);
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if (!ast_strlen_zero(args.duration))
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duration = atoi(args.duration);
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res = ast_dtmf_stream(chan, NULL, args.digits, timeout <= 0 ? 250 : timeout, duration);
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return res;
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}
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static const char mandescr_playdtmf[] =
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"Description: Plays a dtmf digit on the specified channel.\n"
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"Variables: (all are required)\n"
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" Channel: Channel name to send digit to\n"
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" Digit: The dtmf digit to play\n";
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static int manager_play_dtmf(struct mansession *s, const struct message *m)
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{
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const char *channel = astman_get_header(m, "Channel");
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const char *digit = astman_get_header(m, "Digit");
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struct ast_channel *chan;
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if (!(chan = ast_channel_get_by_name(channel))) {
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astman_send_error(s, m, "Channel not found");
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return 0;
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}
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if (ast_strlen_zero(digit)) {
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astman_send_error(s, m, "No digit specified");
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chan = ast_channel_unref(chan);
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return 0;
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}
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ast_senddigit(chan, *digit, 0);
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chan = ast_channel_unref(chan);
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astman_send_ack(s, m, "DTMF successfully queued");
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return 0;
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}
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static int unload_module(void)
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{
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int res;
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res = ast_unregister_application(app);
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res |= ast_manager_unregister("PlayDTMF");
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return res;
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}
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static int load_module(void)
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{
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int res;
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res = ast_manager_register2( "PlayDTMF", EVENT_FLAG_CALL, manager_play_dtmf, "Play DTMF signal on a specific channel.", mandescr_playdtmf );
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res |= ast_register_application_xml(app, senddtmf_exec);
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return res;
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Send DTMF digits Application");
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