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9fe4bc60b5
* Include the null terminator in the buffer length. When the frame is queued it is copied. If the null terminator is not part of the frame buffer length, the receiver could see garbage appended onto it. * Add channel lock protection with ast_sendtext(). git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@305888 65c4cc65-6c06-0410-ace0-fbb531ad65f3
134 lines
3.4 KiB
C
134 lines
3.4 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 transmit a text message
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*
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* \author Mark Spencer <markster@digium.com>
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*
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* \note Requires support of sending text messages from channel driver
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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 <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "asterisk/lock.h"
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#include "asterisk/file.h"
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#include "asterisk/logger.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/translate.h"
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#include "asterisk/image.h"
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#include "asterisk/options.h"
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#include "asterisk/app.h"
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static const char *app = "SendText";
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static const char *synopsis = "Send a Text Message";
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static const char *descrip =
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" SendText(text[|options]): Sends text to current channel (callee).\n"
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"Result of transmission will be stored in the SENDTEXTSTATUS\n"
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"channel variable:\n"
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" SUCCESS Transmission succeeded\n"
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" FAILURE Transmission failed\n"
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" UNSUPPORTED Text transmission not supported by channel\n"
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"\n"
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"At this moment, text is supposed to be 7 bit ASCII in most channels.\n"
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"The option string many contain the following character:\n"
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"'j' -- jump to n+101 priority if the channel doesn't support\n"
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" text transport\n";
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static int sendtext_exec(struct ast_channel *chan, void *data)
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{
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int res = 0;
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struct ast_module_user *u;
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char *status = "UNSUPPORTED";
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char *parse = NULL;
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int priority_jump = 0;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(text);
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AST_APP_ARG(options);
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);
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u = ast_module_user_add(chan);
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/* NOT ast_strlen_zero, because some protocols (e.g. SIP) MUST be able to
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* send a zero-length message. */
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if (!data) {
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ast_log(LOG_WARNING, "SendText requires an argument (text[|options])\n");
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ast_module_user_remove(u);
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return -1;
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} else
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parse = ast_strdupa(data);
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AST_STANDARD_APP_ARGS(args, parse);
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if (args.options) {
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if (strchr(args.options, 'j'))
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priority_jump = 1;
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}
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ast_channel_lock(chan);
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if (!chan->tech->send_text) {
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ast_channel_unlock(chan);
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pbx_builtin_setvar_helper(chan, "SENDTEXTSTATUS", status);
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/* Does not support transport */
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if (priority_jump || ast_opt_priority_jumping)
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ast_goto_if_exists(chan, chan->context, chan->exten, chan->priority + 101);
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ast_module_user_remove(u);
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return 0;
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}
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status = "FAILURE";
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res = ast_sendtext(chan, args.text);
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if (!res)
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status = "SUCCESS";
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ast_channel_unlock(chan);
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pbx_builtin_setvar_helper(chan, "SENDTEXTSTATUS", status);
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ast_module_user_remove(u);
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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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ast_module_user_hangup_all();
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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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return ast_register_application(app, sendtext_exec, synopsis, descrip);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Send Text Applications");
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