Merged revisions 288079-288080 via svnmerge from
[asterisk/asterisk.git] / apps / app_dial.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2008, Digium, Inc.
5  *
6  * Mark Spencer <markster@digium.com>
7  *
8  * See http://www.asterisk.org for more information about
9  * the Asterisk project. Please do not directly contact
10  * any of the maintainers of this project for assistance;
11  * the project provides a web site, mailing lists and IRC
12  * channels for your use.
13  *
14  * This program is free software, distributed under the terms of
15  * the GNU General Public License Version 2. See the LICENSE file
16  * at the top of the source tree.
17  */
18
19 /*! \file
20  *
21  * \brief dial() & retrydial() - Trivial application to dial a channel and send an URL on answer
22  *
23  * \author Mark Spencer <markster@digium.com>
24  *
25  * \ingroup applications
26  */
27
28 /*** MODULEINFO
29         <depend>chan_local</depend>
30  ***/
31
32
33 #include "asterisk.h"
34
35 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
36
37 #include <sys/time.h>
38 #include <sys/signal.h>
39 #include <sys/stat.h>
40 #include <netinet/in.h>
41
42 #include "asterisk/paths.h" /* use ast_config_AST_DATA_DIR */
43 #include "asterisk/lock.h"
44 #include "asterisk/file.h"
45 #include "asterisk/channel.h"
46 #include "asterisk/pbx.h"
47 #include "asterisk/module.h"
48 #include "asterisk/translate.h"
49 #include "asterisk/say.h"
50 #include "asterisk/config.h"
51 #include "asterisk/features.h"
52 #include "asterisk/musiconhold.h"
53 #include "asterisk/callerid.h"
54 #include "asterisk/utils.h"
55 #include "asterisk/app.h"
56 #include "asterisk/causes.h"
57 #include "asterisk/rtp_engine.h"
58 #include "asterisk/cdr.h"
59 #include "asterisk/manager.h"
60 #include "asterisk/privacy.h"
61 #include "asterisk/stringfields.h"
62 #include "asterisk/global_datastores.h"
63 #include "asterisk/dsp.h"
64 #include "asterisk/cel.h"
65 #include "asterisk/aoc.h"
66 #include "asterisk/ccss.h"
67 #include "asterisk/indications.h"
68
69 /*** DOCUMENTATION
70         <application name="Dial" language="en_US">
71                 <synopsis>
72                         Attempt to connect to another device or endpoint and bridge the call.
73                 </synopsis>
74                 <syntax>
75                         <parameter name="Technology/Resource" required="true" argsep="&amp;">
76                                 <argument name="Technology/Resource" required="true">
77                                         <para>Specification of the device(s) to dial.  These must be in the format of
78                                         <literal>Technology/Resource</literal>, where <replaceable>Technology</replaceable>
79                                         represents a particular channel driver, and <replaceable>Resource</replaceable>
80                                         represents a resource available to that particular channel driver.</para>
81                                 </argument>
82                                 <argument name="Technology2/Resource2" required="false" multiple="true">
83                                         <para>Optional extra devices to dial in parallel</para>
84                                         <para>If you need more then one enter them as
85                                         Technology2/Resource2&amp;Technology3/Resourse3&amp;.....</para>
86                                 </argument>
87                         </parameter>
88                         <parameter name="timeout" required="false">
89                                 <para>Specifies the number of seconds we attempt to dial the specified devices</para>
90                                 <para>If not specified, this defaults to 136 years.</para>
91                         </parameter>
92                         <parameter name="options" required="false">
93                            <optionlist>
94                                 <option name="A">
95                                         <argument name="x" required="true">
96                                                 <para>The file to play to the called party</para>
97                                         </argument>
98                                         <para>Play an announcement to the called party, where <replaceable>x</replaceable> is the prompt to be played</para>
99                                 </option>
100                                 <option name="a">
101                                         <para>Immediately answer the calling channel when the called channel answers in
102                                         all cases. Normally, the calling channel is answered when the called channel
103                                         answers, but when options such as A() and M() are used, the calling channel is
104                                         not answered until all actions on the called channel (such as playing an
105                                         announcement) are completed.  This option can be used to answer the calling
106                                         channel before doing anything on the called channel. You will rarely need to use
107                                         this option, the default behavior is adequate in most cases.</para>
108                                 </option>
109                                 <option name="C">
110                                         <para>Reset the call detail record (CDR) for this call.</para>
111                                 </option>
112                                 <option name="c">
113                                         <para>If the Dial() application cancels this call, always set the flag to tell the channel
114                                         driver that the call is answered elsewhere.</para>
115                                 </option>
116                                 <option name="d">
117                                         <para>Allow the calling user to dial a 1 digit extension while waiting for
118                                         a call to be answered. Exit to that extension if it exists in the
119                                         current context, or the context defined in the <variable>EXITCONTEXT</variable> variable,
120                                         if it exists.</para>
121                                 </option>
122                                 <option name="D" argsep=":">
123                                         <argument name="called" />
124                                         <argument name="calling" />
125                                         <argument name="progress" />
126                                         <para>Send the specified DTMF strings <emphasis>after</emphasis> the called
127                                         party has answered, but before the call gets bridged. The 
128                                         <replaceable>called</replaceable> DTMF string is sent to the called party, and the 
129                                         <replaceable>calling</replaceable> DTMF string is sent to the calling party. Both arguments 
130                                         can be used alone.  If <replaceable>progress</replaceable> is specified, its DTMF is sent
131                                         immediately after receiving a PROGRESS message.</para>
132                                 </option>
133                                 <option name="e">
134                                         <para>Execute the <literal>h</literal> extension for peer after the call ends</para>
135                                 </option>
136                                 <option name="f">
137                                         <argument name="x" required="false" />
138                                         <para>If <replaceable>x</replaceable> is not provided, force the callerid of the <emphasis>calling</emphasis> 
139                                         channel to be set as the extension associated with the channel using a dialplan <literal>hint</literal>.
140                                         For example, some PSTNs do not allow CallerID to be set to anything
141                                         other than the number assigned to the caller. If <replaceable>x</replaceable> is provided, though, then
142                                         this option behaves quite differently. Any outgoing channel created will have its connected party information
143                                         set to <replaceable>x</replaceable></para>
144                                 </option>
145                                 <option name="F" argsep="^">
146                                         <argument name="context" required="false" />
147                                         <argument name="exten" required="false" />
148                                         <argument name="priority" required="true" />
149                                         <para>When the caller hangs up, transfer the called party
150                                         to the specified destination and continue execution at that location.</para>
151                                 </option>
152                                 <option name="F">
153                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
154                                         source channel hangs up.</para>
155                                 </option>
156                                 <option name="g">
157                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
158                                         destination channel hangs up.</para>
159                                 </option>
160                                 <option name="G" argsep="^">
161                                         <argument name="context" required="false" />
162                                         <argument name="exten" required="false" />
163                                         <argument name="priority" required="true" />
164                                         <para>If the call is answered, transfer the calling party to
165                                         the specified <replaceable>priority</replaceable> and the called party to the specified 
166                                         <replaceable>priority</replaceable> plus one.</para>
167                                         <note>
168                                                 <para>You cannot use any additional action post answer options in conjunction with this option.</para>
169                                         </note>
170                                 </option>
171                                 <option name="h">
172                                         <para>Allow the called party to hang up by sending the <literal>*</literal> DTMF digit.</para>
173                                 </option>
174                                 <option name="H">
175                                         <para>Allow the calling party to hang up by hitting the <literal>*</literal> DTMF digit.</para>
176                                 </option>
177                                 <option name="i">
178                                         <para>Asterisk will ignore any forwarding requests it may receive on this dial attempt.</para>
179                                 </option>
180                                 <option name="I">
181                                         <para>Asterisk will ignore any connected line update requests or redirecting party update
182                                         requests it may receiveon this dial attempt.</para>
183                                 </option>
184                                 <option name="k">
185                                         <para>Allow the called party to enable parking of the call by sending
186                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
187                                 </option>
188                                 <option name="K">
189                                         <para>Allow the calling party to enable parking of the call by sending
190                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
191                                 </option>
192                                 <option name="L" argsep=":">
193                                         <argument name="x" required="true">
194                                                 <para>Maximum call time, in milliseconds</para>
195                                         </argument>
196                                         <argument name="y">
197                                                 <para>Warning time, in milliseconds</para>
198                                         </argument>
199                                         <argument name="z">
200                                                 <para>Repeat time, in milliseconds</para>
201                                         </argument>
202                                         <para>Limit the call to <replaceable>x</replaceable> milliseconds. Play a warning when <replaceable>y</replaceable> milliseconds are
203                                         left. Repeat the warning every <replaceable>z</replaceable> milliseconds until time expires.</para>
204                                         <para>This option is affected by the following variables:</para>
205                                         <variablelist>
206                                                 <variable name="LIMIT_PLAYAUDIO_CALLER">
207                                                         <value name="yes" default="true" />
208                                                         <value name="no" />
209                                                         <para>If set, this variable causes Asterisk to play the prompts to the caller.</para>
210                                                 </variable>
211                                                 <variable name="LIMIT_PLAYAUDIO_CALLEE">
212                                                         <value name="yes" />
213                                                         <value name="no" default="true"/>
214                                                         <para>If set, this variable causes Asterisk to play the prompts to the callee.</para>
215                                                 </variable>
216                                                 <variable name="LIMIT_TIMEOUT_FILE">
217                                                         <value name="filename"/>
218                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the timeout is reached.
219                                                         If not set, the time remaining will be announced.</para>
220                                                 </variable>
221                                                 <variable name="LIMIT_CONNECT_FILE">
222                                                         <value name="filename"/>
223                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the call begins.
224                                                         If not set, the time remaining will be announced.</para>
225                                                 </variable>
226                                                 <variable name="LIMIT_WARNING_FILE">
227                                                         <value name="filename"/>
228                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play as
229                                                         a warning when time <replaceable>x</replaceable> is reached. If not set, the time remaining will be announced.</para>
230                                                 </variable>
231                                         </variablelist>
232                                 </option>
233                                 <option name="m">
234                                         <argument name="class" required="false"/>
235                                         <para>Provide hold music to the calling party until a requested
236                                         channel answers. A specific music on hold <replaceable>class</replaceable>
237                                         (as defined in <filename>musiconhold.conf</filename>) can be specified.</para>
238                                 </option>
239                                 <option name="M" argsep="^">
240                                         <argument name="macro" required="true">
241                                                 <para>Name of the macro that should be executed.</para>
242                                         </argument>
243                                         <argument name="arg" multiple="true">
244                                                 <para>Macro arguments</para>
245                                         </argument>
246                                         <para>Execute the specified <replaceable>macro</replaceable> for the <emphasis>called</emphasis> channel 
247                                         before connecting to the calling channel. Arguments can be specified to the Macro
248                                         using <literal>^</literal> as a delimiter. The macro can set the variable
249                                         <variable>MACRO_RESULT</variable> to specify the following actions after the macro is
250                                         finished executing:</para>
251                                         <variablelist>
252                                                 <variable name="MACRO_RESULT">
253                                                         <para>If set, this action will be taken after the macro finished executing.</para>
254                                                         <value name="ABORT">
255                                                                 Hangup both legs of the call
256                                                         </value>
257                                                         <value name="CONGESTION">
258                                                                 Behave as if line congestion was encountered
259                                                         </value>
260                                                         <value name="BUSY">
261                                                                 Behave as if a busy signal was encountered
262                                                         </value>
263                                                         <value name="CONTINUE">
264                                                                 Hangup the called party and allow the calling party to continue dialplan execution at the next priority
265                                                         </value>
266                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
267                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
268                                                                 Transfer the call to the specified destination.
269                                                         </value>
270                                                 </variable>
271                                         </variablelist>
272                                         <note>
273                                                 <para>You cannot use any additional action post answer options in conjunction
274                                                 with this option. Also, pbx services are not run on the peer (called) channel,
275                                                 so you will not be able to set timeouts via the TIMEOUT() function in this macro.</para>
276                                         </note>
277                                         <warning><para>Be aware of the limitations that macros have, specifically with regards to use of
278                                         the <literal>WaitExten</literal> application. For more information, see the documentation for
279                                         Macro()</para></warning>
280                                 </option>
281                                 <option name="n">
282                                         <argument name="delete">
283                                                 <para>With <replaceable>delete</replaceable> either not specified or set to <literal>0</literal>,
284                                                 the recorded introduction will not be deleted if the caller hangs up while the remote party has not
285                                                 yet answered.</para>
286                                                 <para>With <replaceable>delete</replaceable> set to <literal>1</literal>, the introduction will
287                                                 always be deleted.</para>
288                                         </argument>
289                                         <para>This option is a modifier for the call screening/privacy mode. (See the 
290                                         <literal>p</literal> and <literal>P</literal> options.) It specifies
291                                         that no introductions are to be saved in the <directory>priv-callerintros</directory>
292                                         directory.</para>
293                                 </option>
294                                 <option name="N">
295                                         <para>This option is a modifier for the call screening/privacy mode. It specifies
296                                         that if Caller*ID is present, do not screen the call.</para>
297                                 </option>
298                                 <option name="o">
299                                         <para>Specify that the Caller*ID that was present on the <emphasis>calling</emphasis> channel
300                                         be set as the Caller*ID on the <emphasis>called</emphasis> channel. This was the
301                                         behavior of Asterisk 1.0 and earlier.</para>
302                                 </option>
303                                 <option name="O">
304                                         <argument name="mode">
305                                                 <para>With <replaceable>mode</replaceable> either not specified or set to <literal>1</literal>,
306                                                 the originator hanging up will cause the phone to ring back immediately.</para>
307                                                 <para>With <replaceable>mode</replaceable> set to <literal>2</literal>, when the operator 
308                                                 flashes the trunk, it will ring their phone back.</para>
309                                         </argument>
310                                         <para>Enables <emphasis>operator services</emphasis> mode.  This option only
311                                         works when bridging a DAHDI channel to another DAHDI channel
312                                         only. if specified on non-DAHDI interfaces, it will be ignored.
313                                         When the destination answers (presumably an operator services
314                                         station), the originator no longer has control of their line.
315                                         They may hang up, but the switch will not release their line
316                                         until the destination party (the operator) hangs up.</para>
317                                 </option>
318                                 <option name="p">
319                                         <para>This option enables screening mode. This is basically Privacy mode
320                                         without memory.</para>
321                                 </option>
322                                 <option name="P">
323                                         <argument name="x" />
324                                         <para>Enable privacy mode. Use <replaceable>x</replaceable> as the family/key in the AstDB database if
325                                         it is provided. The current extension is used if a database family/key is not specified.</para>
326                                 </option>
327                                 <option name="r">
328                                         <para>Default: Indicate ringing to the calling party, even if the called party isn't actually ringing. Pass no audio to the calling
329                                         party until the called channel has answered.</para>
330                                         <argument name="tone" required="false">
331                                                 <para>Indicate progress to calling party. Send audio 'tone' from indications.conf</para>
332                                         </argument>
333                                 </option>
334                                 <option name="S">
335                                         <argument name="x" required="true" />
336                                         <para>Hang up the call <replaceable>x</replaceable> seconds <emphasis>after</emphasis> the called party has
337                                         answered the call.</para>
338                                 </option>
339                                 <option name="s">
340                                         <argument name="x" required="true" />
341                                         <para>Force the outgoing callerid tag parameter to be set to the string <replaceable>x</replaceable></para>
342                                 </option>
343                                 <option name="t">
344                                         <para>Allow the called party to transfer the calling party by sending the
345                                         DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
346                                         transfers initiated by other methods.</para>
347                                 </option>
348                                 <option name="T">
349                                         <para>Allow the calling party to transfer the called party by sending the
350                                         DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
351                                         transfers initiated by other methods.</para>
352                                 </option>
353                                 <option name="U" argsep="^">
354                                         <argument name="x" required="true">
355                                                 <para>Name of the subroutine to execute via Gosub</para>
356                                         </argument>
357                                         <argument name="arg" multiple="true" required="false">
358                                                 <para>Arguments for the Gosub routine</para>
359                                         </argument>
360                                         <para>Execute via Gosub the routine <replaceable>x</replaceable> for the <emphasis>called</emphasis> channel before connecting
361                                         to the calling channel. Arguments can be specified to the Gosub
362                                         using <literal>^</literal> as a delimiter. The Gosub routine can set the variable
363                                         <variable>GOSUB_RESULT</variable> to specify the following actions after the Gosub returns.</para>
364                                         <variablelist>
365                                                 <variable name="GOSUB_RESULT">
366                                                         <value name="ABORT">
367                                                                 Hangup both legs of the call.
368                                                         </value>
369                                                         <value name="CONGESTION">
370                                                                 Behave as if line congestion was encountered.
371                                                         </value>
372                                                         <value name="BUSY">
373                                                                 Behave as if a busy signal was encountered.
374                                                         </value>
375                                                         <value name="CONTINUE">
376                                                                 Hangup the called party and allow the calling party
377                                                                 to continue dialplan execution at the next priority.
378                                                         </value>
379                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
380                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
381                                                                 Transfer the call to the specified priority. Optionally, an extension, or
382                                                                 extension and priority can be specified.
383                                                         </value>
384                                                 </variable>
385                                         </variablelist>
386                                         <note>
387                                                 <para>You cannot use any additional action post answer options in conjunction
388                                                 with this option. Also, pbx services are not run on the peer (called) channel,
389                                                 so you will not be able to set timeouts via the TIMEOUT() function in this routine.</para>
390                                         </note>
391                                 </option>
392                                 <option name="u">
393                                         <argument name = "x" required="true">
394                                                 <para>Force the outgoing callerid presentation indicator parameter to be set
395                                                 to one of the values passed in <replaceable>x</replaceable>:
396                                                 <literal>allowed_not_screened</literal>
397                                                 <literal>allowed_passed_screen</literal>
398                                                 <literal>allowed_failed_screen</literal>
399                                                 <literal>allowed</literal>
400                                                 <literal>prohib_not_screened</literal>
401                                                 <literal>prohib_passed_screen</literal>
402                                                 <literal>prohib_failed_screen</literal>
403                                                 <literal>prohib</literal>
404                                                 <literal>unavailable</literal></para>
405                                         </argument>
406                                 </option>
407                                 <option name="w">
408                                         <para>Allow the called party to enable recording of the call by sending
409                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
410                                 </option>
411                                 <option name="W">
412                                         <para>Allow the calling party to enable recording of the call by sending
413                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
414                                 </option>
415                                 <option name="x">
416                                         <para>Allow the called party to enable recording of the call by sending
417                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
418                                 </option>
419                                 <option name="X">
420                                         <para>Allow the calling party to enable recording of the call by sending
421                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
422                                 </option>
423                                 <option name="z">
424                                         <para>On a call forward, cancel any dial timeout which has been set for this call.</para>
425                                 </option>
426                                 </optionlist>
427                         </parameter>
428                         <parameter name="URL">
429                                 <para>The optional URL will be sent to the called party if the channel driver supports it.</para>
430                         </parameter>
431                 </syntax>
432                 <description>
433                         <para>This application will place calls to one or more specified channels. As soon
434                         as one of the requested channels answers, the originating channel will be
435                         answered, if it has not already been answered. These two channels will then
436                         be active in a bridged call. All other channels that were requested will then
437                         be hung up.</para>
438
439                         <para>Unless there is a timeout specified, the Dial application will wait
440                         indefinitely until one of the called channels answers, the user hangs up, or
441                         if all of the called channels are busy or unavailable. Dialplan executing will
442                         continue if no requested channels can be called, or if the timeout expires.
443                         This application will report normal termination if the originating channel
444                         hangs up, or if the call is bridged and either of the parties in the bridge
445                         ends the call.</para>
446                         <para>If the <variable>OUTBOUND_GROUP</variable> variable is set, all peer channels created by this
447                         application will be put into that group (as in Set(GROUP()=...).
448                         If the <variable>OUTBOUND_GROUP_ONCE</variable> variable is set, all peer channels created by this
449                         application will be put into that group (as in Set(GROUP()=...). Unlike OUTBOUND_GROUP,
450                         however, the variable will be unset after use.</para>
451
452                         <para>This application sets the following channel variables:</para>
453                         <variablelist>
454                                 <variable name="DIALEDTIME">
455                                         <para>This is the time from dialing a channel until when it is disconnected.</para>
456                                 </variable>
457                                 <variable name="ANSWEREDTIME">
458                                         <para>This is the amount of time for actual call.</para>
459                                 </variable>
460                                 <variable name="DIALSTATUS">
461                                         <para>This is the status of the call</para>
462                                         <value name="CHANUNAVAIL" />
463                                         <value name="CONGESTION" />
464                                         <value name="NOANSWER" />
465                                         <value name="BUSY" />
466                                         <value name="ANSWER" />
467                                         <value name="CANCEL" />
468                                         <value name="DONTCALL">
469                                                 For the Privacy and Screening Modes.
470                                                 Will be set if the called party chooses to send the calling party to the 'Go Away' script.
471                                         </value>
472                                         <value name="TORTURE">
473                                                 For the Privacy and Screening Modes.
474                                                 Will be set if the called party chooses to send the calling party to the 'torture' script.
475                                         </value>
476                                         <value name="INVALIDARGS" />
477                                 </variable>
478                         </variablelist>
479                 </description>
480         </application>
481         <application name="RetryDial" language="en_US">
482                 <synopsis>
483                         Place a call, retrying on failure allowing an optional exit extension.
484                 </synopsis>
485                 <syntax>
486                         <parameter name="announce" required="true">
487                                 <para>Filename of sound that will be played when no channel can be reached</para>
488                         </parameter>
489                         <parameter name="sleep" required="true">
490                                 <para>Number of seconds to wait after a dial attempt failed before a new attempt is made</para>
491                         </parameter>
492                         <parameter name="retries" required="true">
493                                 <para>Number of retries</para>
494                                 <para>When this is reached flow will continue at the next priority in the dialplan</para>
495                         </parameter>
496                         <parameter name="dialargs" required="true">
497                                 <para>Same format as arguments provided to the Dial application</para>
498                         </parameter>
499                 </syntax>
500                 <description>
501                         <para>This application will attempt to place a call using the normal Dial application.
502                         If no channel can be reached, the <replaceable>announce</replaceable> file will be played.
503                         Then, it will wait <replaceable>sleep</replaceable> number of seconds before retrying the call.
504                         After <replaceable>retries</replaceable> number of attempts, the calling channel will continue at the next priority in the dialplan.
505                         If the <replaceable>retries</replaceable> setting is set to 0, this application will retry endlessly.
506                         While waiting to retry a call, a 1 digit extension may be dialed. If that
507                         extension exists in either the context defined in <variable>EXITCONTEXT</variable> or the current
508                         one, The call will jump to that extension immediately.
509                         The <replaceable>dialargs</replaceable> are specified in the same format that arguments are provided
510                         to the Dial application.</para>
511                 </description>
512         </application>
513  ***/
514
515 static const char app[] = "Dial";
516 static const char rapp[] = "RetryDial";
517
518 enum {
519         OPT_ANNOUNCE =          (1 << 0),
520         OPT_RESETCDR =          (1 << 1),
521         OPT_DTMF_EXIT =         (1 << 2),
522         OPT_SENDDTMF =          (1 << 3),
523         OPT_FORCECLID =         (1 << 4),
524         OPT_GO_ON =             (1 << 5),
525         OPT_CALLEE_HANGUP =     (1 << 6),
526         OPT_CALLER_HANGUP =     (1 << 7),
527         OPT_ORIGINAL_CLID =     (1 << 8),
528         OPT_DURATION_LIMIT =    (1 << 9),
529         OPT_MUSICBACK =         (1 << 10),
530         OPT_CALLEE_MACRO =      (1 << 11),
531         OPT_SCREEN_NOINTRO =    (1 << 12),
532         OPT_SCREEN_NOCALLERID = (1 << 13),
533         OPT_IGNORE_CONNECTEDLINE = (1 << 14),
534         OPT_SCREENING =         (1 << 15),
535         OPT_PRIVACY =           (1 << 16),
536         OPT_RINGBACK =          (1 << 17),
537         OPT_DURATION_STOP =     (1 << 18),
538         OPT_CALLEE_TRANSFER =   (1 << 19),
539         OPT_CALLER_TRANSFER =   (1 << 20),
540         OPT_CALLEE_MONITOR =    (1 << 21),
541         OPT_CALLER_MONITOR =    (1 << 22),
542         OPT_GOTO =              (1 << 23),
543         OPT_OPERMODE =          (1 << 24),
544         OPT_CALLEE_PARK =       (1 << 25),
545         OPT_CALLER_PARK =       (1 << 26),
546         OPT_IGNORE_FORWARDING = (1 << 27),
547         OPT_CALLEE_GOSUB =      (1 << 28),
548         OPT_CALLEE_MIXMONITOR = (1 << 29),
549         OPT_CALLER_MIXMONITOR = (1 << 30),
550         OPT_CALLER_ANSWER =     (1 << 31),
551 };
552
553 #define DIAL_STILLGOING      (1 << 31)
554 #define DIAL_NOFORWARDHTML   ((uint64_t)1 << 32) /* flags are now 64 bits, so keep it up! */
555 #define DIAL_CALLERID_ABSENT ((uint64_t)1 << 33) /* TRUE if caller id is not available for connected line. */
556 #define OPT_CANCEL_ELSEWHERE ((uint64_t)1 << 34)
557 #define OPT_PEER_H           ((uint64_t)1 << 35)
558 #define OPT_CALLEE_GO_ON     ((uint64_t)1 << 36)
559 #define OPT_CANCEL_TIMEOUT   ((uint64_t)1 << 37)
560 #define OPT_FORCE_CID_TAG    ((uint64_t)1 << 38)
561 #define OPT_FORCE_CID_PRES   ((uint64_t)1 << 39)
562
563 enum {
564         OPT_ARG_ANNOUNCE = 0,
565         OPT_ARG_SENDDTMF,
566         OPT_ARG_GOTO,
567         OPT_ARG_DURATION_LIMIT,
568         OPT_ARG_MUSICBACK,
569         OPT_ARG_CALLEE_MACRO,
570         OPT_ARG_RINGBACK,
571         OPT_ARG_CALLEE_GOSUB,
572         OPT_ARG_CALLEE_GO_ON,
573         OPT_ARG_PRIVACY,
574         OPT_ARG_DURATION_STOP,
575         OPT_ARG_OPERMODE,
576         OPT_ARG_SCREEN_NOINTRO,
577         OPT_ARG_FORCECLID,
578         OPT_ARG_FORCE_CID_TAG,
579         OPT_ARG_FORCE_CID_PRES,
580         /* note: this entry _MUST_ be the last one in the enum */
581         OPT_ARG_ARRAY_SIZE,
582 };
583
584 AST_APP_OPTIONS(dial_exec_options, BEGIN_OPTIONS
585         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
586         AST_APP_OPTION('a', OPT_CALLER_ANSWER),
587         AST_APP_OPTION('C', OPT_RESETCDR),
588         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
589         AST_APP_OPTION('d', OPT_DTMF_EXIT),
590         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
591         AST_APP_OPTION('e', OPT_PEER_H),
592         AST_APP_OPTION_ARG('f', OPT_FORCECLID, OPT_ARG_FORCECLID),
593         AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
594         AST_APP_OPTION('g', OPT_GO_ON),
595         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
596         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
597         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
598         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
599         AST_APP_OPTION('I', OPT_IGNORE_CONNECTEDLINE),
600         AST_APP_OPTION('k', OPT_CALLEE_PARK),
601         AST_APP_OPTION('K', OPT_CALLER_PARK),
602         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
603         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
604         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
605         AST_APP_OPTION_ARG('n', OPT_SCREEN_NOINTRO, OPT_ARG_SCREEN_NOINTRO),
606         AST_APP_OPTION('N', OPT_SCREEN_NOCALLERID),
607         AST_APP_OPTION('o', OPT_ORIGINAL_CLID),
608         AST_APP_OPTION_ARG('O', OPT_OPERMODE, OPT_ARG_OPERMODE),
609         AST_APP_OPTION('p', OPT_SCREENING),
610         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
611         AST_APP_OPTION_ARG('r', OPT_RINGBACK, OPT_ARG_RINGBACK),
612         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
613         AST_APP_OPTION_ARG('s', OPT_FORCE_CID_TAG, OPT_ARG_FORCE_CID_TAG),
614         AST_APP_OPTION_ARG('u', OPT_FORCE_CID_PRES, OPT_ARG_FORCE_CID_PRES),
615         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
616         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
617         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
618         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
619         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
620         AST_APP_OPTION('x', OPT_CALLEE_MIXMONITOR),
621         AST_APP_OPTION('X', OPT_CALLER_MIXMONITOR),
622         AST_APP_OPTION('z', OPT_CANCEL_TIMEOUT),
623 END_OPTIONS );
624
625 #define CAN_EARLY_BRIDGE(flags,chan,peer) (!ast_test_flag64(flags, OPT_CALLEE_HANGUP | \
626         OPT_CALLER_HANGUP | OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER | \
627         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR | OPT_CALLEE_PARK |  \
628         OPT_CALLER_PARK | OPT_ANNOUNCE | OPT_CALLEE_MACRO | OPT_CALLEE_GOSUB) && \
629         !chan->audiohooks && !peer->audiohooks)
630
631 /*
632  * The list of active channels
633  */
634 struct chanlist {
635         struct chanlist *next;
636         struct ast_channel *chan;
637         uint64_t flags;
638         /*! Saved connected party info from an AST_CONTROL_CONNECTED_LINE. */
639         struct ast_party_connected_line connected;
640         /*! TRUE if an AST_CONTROL_CONNECTED_LINE update was saved to the connected element. */
641         unsigned int pending_connected_update:1;
642         struct ast_aoc_decoded *aoc_s_rate_list;
643 };
644
645 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode);
646
647 static void chanlist_free(struct chanlist *outgoing)
648 {
649         ast_party_connected_line_free(&outgoing->connected);
650         ast_aoc_destroy_decoded(outgoing->aoc_s_rate_list);
651         ast_free(outgoing);
652 }
653
654 static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception, int answered_elsewhere)
655 {
656         /* Hang up a tree of stuff */
657         struct chanlist *oo;
658         while (outgoing) {
659                 /* Hangup any existing lines we have open */
660                 if (outgoing->chan && (outgoing->chan != exception)) {
661                         if (answered_elsewhere) {
662                                 /* The flag is used for local channel inheritance and stuff */
663                                 ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
664                                 /* This is for the channel drivers */
665                                 outgoing->chan->hangupcause = AST_CAUSE_ANSWERED_ELSEWHERE;
666                         }
667                         ast_hangup(outgoing->chan);
668                 }
669                 oo = outgoing;
670                 outgoing = outgoing->next;
671                 chanlist_free(oo);
672         }
673 }
674
675 #define AST_MAX_WATCHERS 256
676
677 /*
678  * argument to handle_cause() and other functions.
679  */
680 struct cause_args {
681         struct ast_channel *chan;
682         int busy;
683         int congestion;
684         int nochan;
685 };
686
687 static void handle_cause(int cause, struct cause_args *num)
688 {
689         struct ast_cdr *cdr = num->chan->cdr;
690
691         switch(cause) {
692         case AST_CAUSE_BUSY:
693                 if (cdr)
694                         ast_cdr_busy(cdr);
695                 num->busy++;
696                 break;
697
698         case AST_CAUSE_CONGESTION:
699                 if (cdr)
700                         ast_cdr_failed(cdr);
701                 num->congestion++;
702                 break;
703
704         case AST_CAUSE_NO_ROUTE_DESTINATION:
705         case AST_CAUSE_UNREGISTERED:
706                 if (cdr)
707                         ast_cdr_failed(cdr);
708                 num->nochan++;
709                 break;
710
711         case AST_CAUSE_NO_ANSWER:
712                 if (cdr) {
713                         ast_cdr_noanswer(cdr);
714                 }
715                 break;
716         case AST_CAUSE_NORMAL_CLEARING:
717                 break;
718
719         default:
720                 num->nochan++;
721                 break;
722         }
723 }
724
725 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
726 {
727         char rexten[2] = { exten, '\0' };
728
729         if (context) {
730                 if (!ast_goto_if_exists(chan, context, rexten, pri))
731                         return 1;
732         } else {
733                 if (!ast_goto_if_exists(chan, chan->context, rexten, pri))
734                         return 1;
735                 else if (!ast_strlen_zero(chan->macrocontext)) {
736                         if (!ast_goto_if_exists(chan, chan->macrocontext, rexten, pri))
737                                 return 1;
738                 }
739         }
740         return 0;
741 }
742
743 /* do not call with chan lock held */
744 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
745 {
746         const char *context;
747         const char *exten;
748
749         ast_channel_lock(chan);
750         context = ast_strdupa(S_OR(chan->macrocontext, chan->context));
751         exten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
752         ast_channel_unlock(chan);
753
754         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
755 }
756
757 static void senddialevent(struct ast_channel *src, struct ast_channel *dst, const char *dialstring)
758 {
759         struct ast_channel *chans[] = { src, dst };
760         ast_manager_event_multichan(EVENT_FLAG_CALL, "Dial", 2, chans,
761                 "SubEvent: Begin\r\n"
762                 "Channel: %s\r\n"
763                 "Destination: %s\r\n"
764                 "CallerIDNum: %s\r\n"
765                 "CallerIDName: %s\r\n"
766                 "UniqueID: %s\r\n"
767                 "DestUniqueID: %s\r\n"
768                 "Dialstring: %s\r\n",
769                 src->name, dst->name,
770                 S_COR(src->caller.id.number.valid, src->caller.id.number.str, "<unknown>"),
771                 S_COR(src->caller.id.name.valid, src->caller.id.name.str, "<unknown>"),
772                 src->uniqueid, dst->uniqueid,
773                 dialstring ? dialstring : "");
774 }
775
776 static void senddialendevent(struct ast_channel *src, const char *dialstatus)
777 {
778         ast_manager_event(src, EVENT_FLAG_CALL, "Dial",
779                 "SubEvent: End\r\n"
780                 "Channel: %s\r\n"
781                 "UniqueID: %s\r\n"
782                 "DialStatus: %s\r\n",
783                 src->name, src->uniqueid, dialstatus);
784 }
785
786 /*!
787  * helper function for wait_for_answer()
788  *
789  * XXX this code is highly suspicious, as it essentially overwrites
790  * the outgoing channel without properly deleting it.
791  *
792  * \todo eventually this function should be intergrated into and replaced by ast_call_forward() 
793  */
794 static void do_forward(struct chanlist *o,
795         struct cause_args *num, struct ast_flags64 *peerflags, int single, int *to)
796 {
797         char tmpchan[256];
798         struct ast_channel *original = o->chan;
799         struct ast_channel *c = o->chan; /* the winner */
800         struct ast_channel *in = num->chan; /* the input channel */
801         char *stuff;
802         char *tech;
803         int cause;
804
805         ast_copy_string(tmpchan, c->call_forward, sizeof(tmpchan));
806         if ((stuff = strchr(tmpchan, '/'))) {
807                 *stuff++ = '\0';
808                 tech = tmpchan;
809         } else {
810                 const char *forward_context;
811                 ast_channel_lock(c);
812                 forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
813                 if (ast_strlen_zero(forward_context)) {
814                         forward_context = NULL;
815                 }
816                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", c->call_forward, forward_context ? forward_context : c->context);
817                 ast_channel_unlock(c);
818                 stuff = tmpchan;
819                 tech = "Local";
820         }
821
822         ast_cel_report_event(in, AST_CEL_FORWARD, NULL, c->call_forward, NULL);
823
824         /* Before processing channel, go ahead and check for forwarding */
825         ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", in->name, tech, stuff, c->name);
826         /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
827         if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
828                 ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", in->name, tech, stuff);
829                 c = o->chan = NULL;
830                 cause = AST_CAUSE_BUSY;
831         } else {
832                 /* Setup parameters */
833                 c = o->chan = ast_request(tech, in->nativeformats, in, stuff, &cause);
834                 if (c) {
835                         if (single)
836                                 ast_channel_make_compatible(o->chan, in);
837                         ast_channel_inherit_variables(in, o->chan);
838                         ast_channel_datastore_inherit(in, o->chan);
839                         /* When a call is forwarded, we don't want to track new interfaces
840                          * dialed for CC purposes. Setting the done flag will ensure that
841                          * any Dial operations that happen later won't record CC interfaces.
842                          */
843                         ast_ignore_cc(o->chan);
844                         ast_log(LOG_NOTICE, "Not accepting call completion offers from call-forward recipient %s\n", o->chan->name);
845                 } else
846                         ast_log(LOG_NOTICE,
847                                 "Forwarding failed to create channel to dial '%s/%s' (cause = %d)\n",
848                                 tech, stuff, cause);
849         }
850         if (!c) {
851                 ast_clear_flag64(o, DIAL_STILLGOING);
852                 handle_cause(cause, num);
853                 ast_hangup(original);
854         } else {
855                 struct ast_party_redirecting redirecting;
856
857                 if (single && CAN_EARLY_BRIDGE(peerflags, c, in)) {
858                         ast_rtp_instance_early_bridge_make_compatible(c, in);
859                 }
860
861                 ast_channel_set_redirecting(c, &original->redirecting, NULL);
862                 ast_channel_lock(c);
863                 while (ast_channel_trylock(in)) {
864                         CHANNEL_DEADLOCK_AVOIDANCE(c);
865                 }
866                 if (!c->redirecting.from.number.valid
867                         || ast_strlen_zero(c->redirecting.from.number.str)) {
868                         /*
869                          * The call was not previously redirected so it is
870                          * now redirected from this number.
871                          */
872                         ast_party_number_free(&c->redirecting.from.number);
873                         ast_party_number_init(&c->redirecting.from.number);
874                         c->redirecting.from.number.valid = 1;
875                         c->redirecting.from.number.str =
876                                 ast_strdup(S_OR(in->macroexten, in->exten));
877                 }
878
879                 c->dialed.transit_network_select = in->dialed.transit_network_select;
880
881                 if (ast_test_flag64(o, OPT_FORCECLID)) {
882                         ast_party_id_free(&c->caller.id);
883                         ast_party_id_init(&c->caller.id);
884                         c->caller.id.number.valid = 1;
885                         c->caller.id.number.str = ast_strdup(S_OR(in->macroexten, in->exten));
886                         ast_string_field_set(c, accountcode, c->accountcode);
887                 } else {
888                         ast_party_caller_copy(&c->caller, &in->caller);
889                         ast_string_field_set(c, accountcode, in->accountcode);
890                 }
891                 ast_party_connected_line_copy(&c->connected, &original->connected);
892                 c->appl = "AppDial";
893                 c->data = "(Outgoing Line)";
894                 /*
895                  * We must unlock c before calling ast_channel_redirecting_macro, because
896                  * we put c into autoservice there. That is pretty much a guaranteed
897                  * deadlock. This is why the handling of c's lock may seem a bit unusual
898                  * here.
899                  */
900                 ast_party_redirecting_init(&redirecting);
901                 ast_party_redirecting_copy(&redirecting, &c->redirecting);
902                 ast_channel_unlock(c);
903                 if (ast_channel_redirecting_macro(c, in, &redirecting, 1, 0)) {
904                         ast_channel_update_redirecting(in, &redirecting, NULL);
905                 }
906                 ast_party_redirecting_free(&redirecting);
907                 ast_channel_unlock(in);
908
909                 ast_clear_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE);
910                 if (ast_test_flag64(peerflags, OPT_CANCEL_TIMEOUT)) {
911                         *to = -1;
912                 }
913
914                 if (ast_call(c, stuff, 0)) {
915                         ast_log(LOG_NOTICE, "Forwarding failed to dial '%s/%s'\n",
916                                 tech, stuff);
917                         ast_clear_flag64(o, DIAL_STILLGOING);
918                         ast_hangup(original);
919                         ast_hangup(c);
920                         c = o->chan = NULL;
921                         num->nochan++;
922                 } else {
923                         ast_channel_lock(c);
924                         while (ast_channel_trylock(in)) {
925                                 CHANNEL_DEADLOCK_AVOIDANCE(c);
926                         }
927                         senddialevent(in, c, stuff);
928                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
929                                 char cidname[AST_MAX_EXTENSION] = "";
930                                 const char *tmpexten;
931                                 tmpexten = ast_strdupa(S_OR(in->macroexten, in->exten));
932                                 ast_channel_unlock(in);
933                                 ast_channel_unlock(c);
934                                 ast_set_callerid(c, tmpexten, get_cid_name(cidname, sizeof(cidname), in), NULL);
935                         } else {
936                                 ast_channel_unlock(in);
937                                 ast_channel_unlock(c);
938                         }
939                         /* Hangup the original channel now, in case we needed it */
940                         ast_hangup(original);
941                 }
942                 if (single) {
943                         ast_indicate(in, -1);
944                 }
945         }
946 }
947
948 /* argument used for some functions. */
949 struct privacy_args {
950         int sentringing;
951         int privdb_val;
952         char privcid[256];
953         char privintro[1024];
954         char status[256];
955 };
956
957 static struct ast_channel *wait_for_answer(struct ast_channel *in,
958         struct chanlist *outgoing, int *to, struct ast_flags64 *peerflags,
959         char *opt_args[],
960         struct privacy_args *pa,
961         const struct cause_args *num_in, int *result, char *dtmf_progress,
962         const int ignore_cc)
963 {
964         struct cause_args num = *num_in;
965         int prestart = num.busy + num.congestion + num.nochan;
966         int orig = *to;
967         struct ast_channel *peer = NULL;
968         /* single is set if only one destination is enabled */
969         int single = outgoing && !outgoing->next;
970 #ifdef HAVE_EPOLL
971         struct chanlist *epollo;
972 #endif
973         struct ast_party_connected_line connected_caller;
974         struct ast_str *featurecode = ast_str_alloca(FEATURE_MAX_LEN + 1);
975         int cc_recall_core_id;
976         int is_cc_recall;
977         int cc_frame_received = 0;
978         int num_ringing = 0;
979
980         ast_party_connected_line_init(&connected_caller);
981         if (single) {
982                 /* Turn off hold music, etc */
983                 if (!ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK)) {
984                         ast_deactivate_generator(in);
985                         /* If we are calling a single channel, and not providing ringback or music, */
986                         /* then, make them compatible for in-band tone purpose */
987                         ast_channel_make_compatible(outgoing->chan, in);
988                 }
989
990                 if (!ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE) && !ast_test_flag64(outgoing, DIAL_CALLERID_ABSENT)) {
991                         ast_channel_lock(outgoing->chan);
992                         ast_connected_line_copy_from_caller(&connected_caller, &outgoing->chan->caller);
993                         ast_channel_unlock(outgoing->chan);
994                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
995                         ast_channel_update_connected_line(in, &connected_caller, NULL);
996                         ast_party_connected_line_free(&connected_caller);
997                 }
998         }
999
1000         is_cc_recall = ast_cc_is_recall(in, &cc_recall_core_id, NULL);
1001
1002 #ifdef HAVE_EPOLL
1003         for (epollo = outgoing; epollo; epollo = epollo->next)
1004                 ast_poll_channel_add(in, epollo->chan);
1005 #endif
1006
1007         while (*to && !peer) {
1008                 struct chanlist *o;
1009                 int pos = 0; /* how many channels do we handle */
1010                 int numlines = prestart;
1011                 struct ast_channel *winner;
1012                 struct ast_channel *watchers[AST_MAX_WATCHERS];
1013
1014                 watchers[pos++] = in;
1015                 for (o = outgoing; o; o = o->next) {
1016                         /* Keep track of important channels */
1017                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
1018                                 watchers[pos++] = o->chan;
1019                         numlines++;
1020                 }
1021                 if (pos == 1) { /* only the input channel is available */
1022                         if (numlines == (num.busy + num.congestion + num.nochan)) {
1023                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
1024                                 if (num.busy)
1025                                         strcpy(pa->status, "BUSY");
1026                                 else if (num.congestion)
1027                                         strcpy(pa->status, "CONGESTION");
1028                                 else if (num.nochan)
1029                                         strcpy(pa->status, "CHANUNAVAIL");
1030                         } else {
1031                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
1032                         }
1033                         *to = 0;
1034                         if (is_cc_recall) {
1035                                 ast_cc_failed(cc_recall_core_id, "Everyone is busy/congested for the recall. How sad");
1036                         }
1037                         return NULL;
1038                 }
1039                 winner = ast_waitfor_n(watchers, pos, to);
1040                 for (o = outgoing; o; o = o->next) {
1041                         struct ast_frame *f;
1042                         struct ast_channel *c = o->chan;
1043
1044                         if (c == NULL)
1045                                 continue;
1046                         if (ast_test_flag64(o, DIAL_STILLGOING) && c->_state == AST_STATE_UP) {
1047                                 if (!peer) {
1048                                         ast_verb(3, "%s answered %s\n", c->name, in->name);
1049                                         if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1050                                                 if (o->pending_connected_update) {
1051                                                         if (ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1052                                                                 ast_channel_update_connected_line(in, &o->connected, NULL);
1053                                                         }
1054                                                 } else if (!ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1055                                                         ast_channel_lock(c);
1056                                                         ast_connected_line_copy_from_caller(&connected_caller, &c->caller);
1057                                                         ast_channel_unlock(c);
1058                                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1059                                                         ast_channel_update_connected_line(in, &connected_caller, NULL);
1060                                                         ast_party_connected_line_free(&connected_caller);
1061                                                 }
1062                                         }
1063                                         if (o->aoc_s_rate_list) {
1064                                                 size_t encoded_size;
1065                                                 struct ast_aoc_encoded *encoded;
1066                                                 if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
1067                                                         ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
1068                                                         ast_aoc_destroy_encoded(encoded);
1069                                                 }
1070                                         }
1071                                         peer = c;
1072                                         ast_copy_flags64(peerflags, o,
1073                                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1074                                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1075                                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1076                                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1077                                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1078                                                 DIAL_NOFORWARDHTML);
1079                                         ast_string_field_set(c, dialcontext, "");
1080                                         ast_copy_string(c->exten, "", sizeof(c->exten));
1081                                 }
1082                                 continue;
1083                         }
1084                         if (c != winner)
1085                                 continue;
1086                         /* here, o->chan == c == winner */
1087                         if (!ast_strlen_zero(c->call_forward)) {
1088                                 pa->sentringing = 0;
1089                                 if (!ignore_cc && (f = ast_read(c))) {
1090                                         if (f->frametype == AST_FRAME_CONTROL && f->subclass.integer == AST_CONTROL_CC) {
1091                                                 /* This channel is forwarding the call, and is capable of CC, so
1092                                                  * be sure to add the new device interface to the list
1093                                                  */
1094                                                 ast_handle_cc_control_frame(in, c, f->data.ptr);
1095                                         }
1096                                         ast_frfree(f);
1097                                 }
1098                                 do_forward(o, &num, peerflags, single, to);
1099                                 continue;
1100                         }
1101                         f = ast_read(winner);
1102                         if (!f) {
1103                                 in->hangupcause = c->hangupcause;
1104 #ifdef HAVE_EPOLL
1105                                 ast_poll_channel_del(in, c);
1106 #endif
1107                                 ast_hangup(c);
1108                                 c = o->chan = NULL;
1109                                 ast_clear_flag64(o, DIAL_STILLGOING);
1110                                 handle_cause(in->hangupcause, &num);
1111                                 continue;
1112                         }
1113                         if (f->frametype == AST_FRAME_CONTROL) {
1114                                 switch (f->subclass.integer) {
1115                                 case AST_CONTROL_ANSWER:
1116                                         /* This is our guy if someone answered. */
1117                                         if (!peer) {
1118                                                 ast_verb(3, "%s answered %s\n", c->name, in->name);
1119                                                 if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1120                                                         if (o->pending_connected_update) {
1121                                                                 if (ast_channel_connected_line_macro(c, in, &o->connected, 1, 0)) {
1122                                                                         ast_channel_update_connected_line(in, &o->connected, NULL);
1123                                                                 }
1124                                                         } else if (!ast_test_flag64(o, DIAL_CALLERID_ABSENT)) {
1125                                                                 ast_channel_lock(c);
1126                                                                 ast_connected_line_copy_from_caller(&connected_caller, &c->caller);
1127                                                                 ast_channel_unlock(c);
1128                                                                 connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
1129                                                                 ast_channel_update_connected_line(in, &connected_caller, NULL);
1130                                                                 ast_party_connected_line_free(&connected_caller);
1131                                                         }
1132                                                 }
1133                                                 if (o->aoc_s_rate_list) {
1134                                                         size_t encoded_size;
1135                                                         struct ast_aoc_encoded *encoded;
1136                                                         if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
1137                                                                 ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
1138                                                                 ast_aoc_destroy_encoded(encoded);
1139                                                         }
1140                                                 }
1141                                                 peer = c;
1142                                                 if (peer->cdr) {
1143                                                         peer->cdr->answer = ast_tvnow();
1144                                                         peer->cdr->disposition = AST_CDR_ANSWERED;
1145                                                 }
1146                                                 ast_copy_flags64(peerflags, o,
1147                                                         OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1148                                                         OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1149                                                         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1150                                                         OPT_CALLEE_PARK | OPT_CALLER_PARK |
1151                                                         OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1152                                                         DIAL_NOFORWARDHTML);
1153                                                 ast_string_field_set(c, dialcontext, "");
1154                                                 ast_copy_string(c->exten, "", sizeof(c->exten));
1155                                                 if (CAN_EARLY_BRIDGE(peerflags, in, peer))
1156                                                         /* Setup early bridge if appropriate */
1157                                                         ast_channel_early_bridge(in, peer);
1158                                         }
1159                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
1160                                         in->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1161                                         c->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1162                                         break;
1163                                 case AST_CONTROL_BUSY:
1164                                         ast_verb(3, "%s is busy\n", c->name);
1165                                         in->hangupcause = c->hangupcause;
1166                                         ast_hangup(c);
1167                                         c = o->chan = NULL;
1168                                         ast_clear_flag64(o, DIAL_STILLGOING);
1169                                         handle_cause(AST_CAUSE_BUSY, &num);
1170                                         break;
1171                                 case AST_CONTROL_CONGESTION:
1172                                         ast_verb(3, "%s is circuit-busy\n", c->name);
1173                                         in->hangupcause = c->hangupcause;
1174                                         ast_hangup(c);
1175                                         c = o->chan = NULL;
1176                                         ast_clear_flag64(o, DIAL_STILLGOING);
1177                                         handle_cause(AST_CAUSE_CONGESTION, &num);
1178                                         break;
1179                                 case AST_CONTROL_RINGING:
1180                                         /* This is a tricky area to get right when using a native
1181                                          * CC agent. The reason is that we do the best we can to send only a
1182                                          * single ringing notification to the caller.
1183                                          *
1184                                          * Call completion complicates the logic used here. CCNR is typically
1185                                          * offered during a ringing message. Let's say that party A calls
1186                                          * parties B, C, and D. B and C do not support CC requests, but D
1187                                          * does. If we were to receive a ringing notification from B before
1188                                          * the others, then we would end up sending a ringing message to
1189                                          * A with no CCNR offer present.
1190                                          *
1191                                          * The approach that we have taken is that if we receive a ringing
1192                                          * response from a party and no CCNR offer is present, we need to
1193                                          * wait. Specifically, we need to wait until either a) a called party
1194                                          * offers CCNR in its ringing response or b) all called parties have
1195                                          * responded in some way to our call and none offers CCNR.
1196                                          *
1197                                          * The drawback to this is that if one of the parties has a delayed
1198                                          * response or, god forbid, one just plain doesn't respond to our
1199                                          * outgoing call, then this will result in a significant delay between
1200                                          * when the caller places the call and hears ringback.
1201                                          *
1202                                          * Note also that if CC is disabled for this call, then it is perfectly
1203                                          * fine for ringing frames to get sent through.
1204                                          */
1205                                         ++num_ringing;
1206                                         if (ignore_cc || cc_frame_received || num_ringing == numlines) {
1207                                                 ast_verb(3, "%s is ringing\n", c->name);
1208                                                 /* Setup early media if appropriate */
1209                                                 if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1210                                                         ast_channel_early_bridge(in, c);
1211                                                 if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK) && ast_strlen_zero(opt_args[OPT_ARG_RINGBACK])) {
1212                                                         ast_indicate(in, AST_CONTROL_RINGING);
1213                                                         pa->sentringing++;
1214                                                 }
1215                                         }
1216                                         break;
1217                                 case AST_CONTROL_PROGRESS:
1218                                         ast_verb(3, "%s is making progress passing it to %s\n", c->name, in->name);
1219                                         /* Setup early media if appropriate */
1220                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1221                                                 ast_channel_early_bridge(in, c);
1222                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1223                                                 if (single || (!single && !pa->sentringing)) {
1224                                                         ast_indicate(in, AST_CONTROL_PROGRESS);
1225                                                 }
1226                                                 if(!ast_strlen_zero(dtmf_progress)) {
1227                                                         ast_verb(3, "Sending DTMF '%s' to the called party as result of receiving a PROGRESS message.\n", dtmf_progress);
1228                                                         ast_dtmf_stream(c, in, dtmf_progress, 250, 0);
1229                                                 }
1230                                         break;
1231                                 case AST_CONTROL_VIDUPDATE:
1232                                         ast_verb(3, "%s requested a video update, passing it to %s\n", c->name, in->name);
1233                                         ast_indicate(in, AST_CONTROL_VIDUPDATE);
1234                                         break;
1235                                 case AST_CONTROL_SRCUPDATE:
1236                                         ast_verb(3, "%s requested a source update, passing it to %s\n", c->name, in->name);
1237                                         ast_indicate(in, AST_CONTROL_SRCUPDATE);
1238                                         break;
1239                                 case AST_CONTROL_CONNECTED_LINE:
1240                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1241                                                 ast_verb(3, "Connected line update to %s prevented.\n", in->name);
1242                                         } else if (!single) {
1243                                                 struct ast_party_connected_line connected;
1244                                                 ast_verb(3, "%s connected line has changed. Saving it until answer for %s\n", c->name, in->name);
1245                                                 ast_party_connected_line_set_init(&connected, &o->connected);
1246                                                 ast_connected_line_parse_data(f->data.ptr, f->datalen, &connected);
1247                                                 ast_party_connected_line_set(&o->connected, &connected, NULL);
1248                                                 ast_party_connected_line_free(&connected);
1249                                                 o->pending_connected_update = 1;
1250                                         } else {
1251                                                 if (ast_channel_connected_line_macro(c, in, f, 1, 1)) {
1252                                                         ast_indicate_data(in, AST_CONTROL_CONNECTED_LINE, f->data.ptr, f->datalen);
1253                                                 }
1254                                         }
1255                                         break;
1256                                 case AST_CONTROL_AOC:
1257                                         {
1258                                                 struct ast_aoc_decoded *decoded = ast_aoc_decode(f->data.ptr, f->datalen, o->chan);
1259                                                 if (decoded && (ast_aoc_get_msg_type(decoded) == AST_AOC_S)) {
1260                                                         ast_aoc_destroy_decoded(o->aoc_s_rate_list);
1261                                                         o->aoc_s_rate_list = decoded;
1262                                                 } else {
1263                                                         ast_aoc_destroy_decoded(decoded);
1264                                                 }
1265                                         }
1266                                         break;
1267                                 case AST_CONTROL_REDIRECTING:
1268                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1269                                                 ast_verb(3, "Redirecting update to %s prevented.\n", in->name);
1270                                         } else {
1271                                                 ast_verb(3, "%s redirecting info has changed, passing it to %s\n", c->name, in->name);
1272                                                 if (ast_channel_redirecting_macro(c, in, f, 1, 1)) {
1273                                                         ast_indicate_data(in, AST_CONTROL_REDIRECTING, f->data.ptr, f->datalen);
1274                                                 }
1275                                                 pa->sentringing = 0;
1276                                         }
1277                                         break;
1278                                 case AST_CONTROL_PROCEEDING:
1279                                         ast_verb(3, "%s is proceeding passing it to %s\n", c->name, in->name);
1280                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1281                                                 ast_channel_early_bridge(in, c);
1282                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1283                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
1284                                         break;
1285                                 case AST_CONTROL_HOLD:
1286                                         ast_verb(3, "Call on %s placed on hold\n", c->name);
1287                                         ast_indicate(in, AST_CONTROL_HOLD);
1288                                         break;
1289                                 case AST_CONTROL_UNHOLD:
1290                                         ast_verb(3, "Call on %s left from hold\n", c->name);
1291                                         ast_indicate(in, AST_CONTROL_UNHOLD);
1292                                         break;
1293                                 case AST_CONTROL_OFFHOOK:
1294                                 case AST_CONTROL_FLASH:
1295                                         /* Ignore going off hook and flash */
1296                                         break;
1297                                 case AST_CONTROL_CC:
1298                                         if (!ignore_cc) {
1299                                                 ast_handle_cc_control_frame(in, c, f->data.ptr);
1300                                                 cc_frame_received = 1;
1301                                         }
1302                                         break;
1303                                 case -1:
1304                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK | OPT_MUSICBACK)) {
1305                                                 ast_verb(3, "%s stopped sounds\n", c->name);
1306                                                 ast_indicate(in, -1);
1307                                                 pa->sentringing = 0;
1308                                         }
1309                                         break;
1310                                 default:
1311                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass.integer);
1312                                 }
1313                         } else if (single) {
1314                                 switch (f->frametype) {
1315                                         case AST_FRAME_VOICE:
1316                                         case AST_FRAME_IMAGE:
1317                                         case AST_FRAME_TEXT:
1318                                                 if (ast_write(in, f)) {
1319                                                         ast_log(LOG_WARNING, "Unable to write frame\n");
1320                                                 }
1321                                                 break;
1322                                         case AST_FRAME_HTML:
1323                                                 if (!ast_test_flag64(outgoing, DIAL_NOFORWARDHTML) && ast_channel_sendhtml(in, f->subclass.integer, f->data.ptr, f->datalen) == -1) {
1324                                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1325                                                 }
1326                                                 break;
1327                                         default:
1328                                                 break;
1329                                 }
1330                         }
1331                         ast_frfree(f);
1332                 } /* end for */
1333                 if (winner == in) {
1334                         struct ast_frame *f = ast_read(in);
1335 #if 0
1336                         if (f && (f->frametype != AST_FRAME_VOICE))
1337                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
1338                         else if (!f || (f->frametype != AST_FRAME_VOICE))
1339                                 printf("Hangup received on %s\n", in->name);
1340 #endif
1341                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass.integer == AST_CONTROL_HANGUP))) {
1342                                 /* Got hung up */
1343                                 *to = -1;
1344                                 strcpy(pa->status, "CANCEL");
1345                                 ast_cdr_noanswer(in->cdr);
1346                                 if (f) {
1347                                         if (f->data.uint32) {
1348                                                 in->hangupcause = f->data.uint32;
1349                                         }
1350                                         ast_frfree(f);
1351                                 }
1352                                 if (is_cc_recall) {
1353                                         ast_cc_completed(in, "CC completed, although the caller hung up (cancelled)");
1354                                 }
1355                                 return NULL;
1356                         }
1357
1358                         /* now f is guaranteed non-NULL */
1359                         if (f->frametype == AST_FRAME_DTMF) {
1360                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
1361                                         const char *context;
1362                                         ast_channel_lock(in);
1363                                         context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
1364                                         if (onedigit_goto(in, context, (char) f->subclass.integer, 1)) {
1365                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass.integer);
1366                                                 *to = 0;
1367                                                 ast_cdr_noanswer(in->cdr);
1368                                                 *result = f->subclass.integer;
1369                                                 strcpy(pa->status, "CANCEL");
1370                                                 ast_frfree(f);
1371                                                 ast_channel_unlock(in);
1372                                                 if (is_cc_recall) {
1373                                                         ast_cc_completed(in, "CC completed, but the caller used DTMF to exit");
1374                                                 }
1375                                                 return NULL;
1376                                         }
1377                                         ast_channel_unlock(in);
1378                                 }
1379
1380                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) &&
1381                                         detect_disconnect(in, f->subclass.integer, featurecode)) {
1382                                         ast_verb(3, "User requested call disconnect.\n");
1383                                         *to = 0;
1384                                         strcpy(pa->status, "CANCEL");
1385                                         ast_cdr_noanswer(in->cdr);
1386                                         ast_frfree(f);
1387                                         if (is_cc_recall) {
1388                                                 ast_cc_completed(in, "CC completed, but the caller hung up with DTMF");
1389                                         }
1390                                         return NULL;
1391                                 }
1392                         }
1393
1394                         /* Forward HTML stuff */
1395                         if (single && (f->frametype == AST_FRAME_HTML) && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML))
1396                                 if (ast_channel_sendhtml(outgoing->chan, f->subclass.integer, f->data.ptr, f->datalen) == -1)
1397                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1398
1399                         if (single && ((f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_DTMF_BEGIN) || (f->frametype == AST_FRAME_DTMF_END)))  {
1400                                 if (ast_write(outgoing->chan, f))
1401                                         ast_log(LOG_WARNING, "Unable to forward voice or dtmf\n");
1402                         }
1403                         if (single && (f->frametype == AST_FRAME_CONTROL)) { 
1404                                 if ((f->subclass.integer == AST_CONTROL_HOLD) ||
1405                                     (f->subclass.integer == AST_CONTROL_UNHOLD) ||
1406                                     (f->subclass.integer == AST_CONTROL_VIDUPDATE) ||
1407                                     (f->subclass.integer == AST_CONTROL_SRCUPDATE) ||
1408                                     (f->subclass.integer == AST_CONTROL_REDIRECTING)) {
1409                                         ast_verb(3, "%s requested special control %d, passing it to %s\n", in->name, f->subclass.integer, outgoing->chan->name);
1410                                         ast_indicate_data(outgoing->chan, f->subclass.integer, f->data.ptr, f->datalen);
1411                                 } else if (f->subclass.integer == AST_CONTROL_CONNECTED_LINE) {
1412                                         if (ast_channel_connected_line_macro(in, outgoing->chan, f, 0, 1)) {
1413                                                 ast_indicate_data(outgoing->chan, f->subclass.integer, f->data.ptr, f->datalen);
1414                                         }
1415                                 } else if (f->subclass.integer == AST_CONTROL_REDIRECTING) {
1416                                         if (ast_channel_redirecting_macro(in, outgoing->chan, f, 0, 1)) {
1417                                                 ast_indicate_data(outgoing->chan, f->subclass.integer, f->data.ptr, f->datalen);
1418                                         }
1419                                 }
1420                         }
1421                         ast_frfree(f);
1422                 }
1423                 if (!*to)
1424                         ast_verb(3, "Nobody picked up in %d ms\n", orig);
1425                 if (!*to || ast_check_hangup(in))
1426                         ast_cdr_noanswer(in->cdr);
1427         }
1428
1429 #ifdef HAVE_EPOLL
1430         for (epollo = outgoing; epollo; epollo = epollo->next) {
1431                 if (epollo->chan)
1432                         ast_poll_channel_del(in, epollo->chan);
1433         }
1434 #endif
1435
1436         if (is_cc_recall) {
1437                 ast_cc_completed(in, "Recall completed!");
1438         }
1439         return peer;
1440 }
1441
1442 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode)
1443 {
1444         struct ast_flags features = { AST_FEATURE_DISCONNECT }; /* only concerned with disconnect feature */
1445         struct ast_call_feature feature = { 0, };
1446         int res;
1447
1448         ast_str_append(&featurecode, 1, "%c", code);
1449
1450         res = ast_feature_detect(chan, &features, ast_str_buffer(featurecode), &feature);
1451
1452         if (res != AST_FEATURE_RETURN_STOREDIGITS) {
1453                 ast_str_reset(featurecode);
1454         }
1455         if (feature.feature_mask & AST_FEATURE_DISCONNECT) {
1456                 return 1;
1457         }
1458
1459         return 0;
1460 }
1461
1462 static void replace_macro_delimiter(char *s)
1463 {
1464         for (; *s; s++)
1465                 if (*s == '^')
1466                         *s = ',';
1467 }
1468
1469 /* returns true if there is a valid privacy reply */
1470 static int valid_priv_reply(struct ast_flags64 *opts, int res)
1471 {
1472         if (res < '1')
1473                 return 0;
1474         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
1475                 return 1;
1476         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
1477                 return 1;
1478         return 0;
1479 }
1480
1481 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
1482         struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
1483 {
1484
1485         int res2;
1486         int loopcount = 0;
1487
1488         /* Get the user's intro, store it in priv-callerintros/$CID,
1489            unless it is already there-- this should be done before the
1490            call is actually dialed  */
1491
1492         /* all ring indications and moh for the caller has been halted as soon as the
1493            target extension was picked up. We are going to have to kill some
1494            time and make the caller believe the peer hasn't picked up yet */
1495
1496         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1497                 char *original_moh = ast_strdupa(chan->musicclass);
1498                 ast_indicate(chan, -1);
1499                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1500                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1501                 ast_string_field_set(chan, musicclass, original_moh);
1502         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1503                 ast_indicate(chan, AST_CONTROL_RINGING);
1504                 pa->sentringing++;
1505         }
1506
1507         /* Start autoservice on the other chan ?? */
1508         res2 = ast_autoservice_start(chan);
1509         /* Now Stream the File */
1510         for (loopcount = 0; loopcount < 3; loopcount++) {
1511                 if (res2 && loopcount == 0) /* error in ast_autoservice_start() */
1512                         break;
1513                 if (!res2) /* on timeout, play the message again */
1514                         res2 = ast_play_and_wait(peer, "priv-callpending");
1515                 if (!valid_priv_reply(opts, res2))
1516                         res2 = 0;
1517                 /* priv-callpending script:
1518                    "I have a caller waiting, who introduces themselves as:"
1519                 */
1520                 if (!res2)
1521                         res2 = ast_play_and_wait(peer, pa->privintro);
1522                 if (!valid_priv_reply(opts, res2))
1523                         res2 = 0;
1524                 /* now get input from the called party, as to their choice */
1525                 if (!res2) {
1526                         /* XXX can we have both, or they are mutually exclusive ? */
1527                         if (ast_test_flag64(opts, OPT_PRIVACY))
1528                                 res2 = ast_play_and_wait(peer, "priv-callee-options");
1529                         if (ast_test_flag64(opts, OPT_SCREENING))
1530                                 res2 = ast_play_and_wait(peer, "screen-callee-options");
1531                 }
1532                 /*! \page DialPrivacy Dial Privacy scripts
1533                 \par priv-callee-options script:
1534                         "Dial 1 if you wish this caller to reach you directly in the future,
1535                                 and immediately connect to their incoming call
1536                          Dial 2 if you wish to send this caller to voicemail now and
1537                                 forevermore.
1538                          Dial 3 to send this caller to the torture menus, now and forevermore.
1539                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1540                          Dial 5 to allow this caller to come straight thru to you in the future,
1541                                 but right now, just this once, send them to voicemail."
1542                 \par screen-callee-options script:
1543                         "Dial 1 if you wish to immediately connect to the incoming call
1544                          Dial 2 if you wish to send this caller to voicemail.
1545                          Dial 3 to send this caller to the torture menus.
1546                          Dial 4 to send this caller to a simple "go away" menu.
1547                 */
1548                 if (valid_priv_reply(opts, res2))
1549                         break;
1550                 /* invalid option */
1551                 res2 = ast_play_and_wait(peer, "vm-sorry");
1552         }
1553
1554         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1555                 ast_moh_stop(chan);
1556         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1557                 ast_indicate(chan, -1);
1558                 pa->sentringing = 0;
1559         }
1560         ast_autoservice_stop(chan);
1561         if (ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1562                 /* map keypresses to various things, the index is res2 - '1' */
1563                 static const char * const _val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1564                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1565                 int i = res2 - '1';
1566                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1567                         opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1568                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1569         }
1570         switch (res2) {
1571         case '1':
1572                 break;
1573         case '2':
1574                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1575                 break;
1576         case '3':
1577                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1578                 break;
1579         case '4':
1580                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1581                 break;
1582         case '5':
1583                 /* XXX should we set status to DENY ? */
1584                 if (ast_test_flag64(opts, OPT_PRIVACY))
1585                         break;
1586                 /* if not privacy, then 5 is the same as "default" case */
1587         default: /* bad input or -1 if failure to start autoservice */
1588                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1589                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1590                           or,... put 'em thru to voicemail. */
1591                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1592                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1593                 /* XXX should we set status to DENY ? */
1594                 /* XXX what about the privacy flags ? */
1595                 break;
1596         }
1597
1598         if (res2 == '1') { /* the only case where we actually connect */
1599                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll
1600                    just clog things up, and it's not useful information, not being tied to a CID */
1601                 if (strncmp(pa->privcid, "NOCALLERID", 10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO)) {
1602                         ast_filedelete(pa->privintro, NULL);
1603                         if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1604                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1605                         else
1606                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1607                 }
1608                 return 0; /* the good exit path */
1609         } else {
1610                 ast_hangup(peer); /* hang up on the callee -- he didn't want to talk anyway! */
1611                 return -1;
1612         }
1613 }
1614
1615 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1616 static int setup_privacy_args(struct privacy_args *pa,
1617         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1618 {
1619         char callerid[60];
1620         int res;
1621         char *l;
1622         int silencethreshold;
1623
1624         if (chan->caller.id.number.valid
1625                 && !ast_strlen_zero(chan->caller.id.number.str)) {
1626                 l = ast_strdupa(chan->caller.id.number.str);
1627                 ast_shrink_phone_number(l);
1628                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1629                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n", opt_args[OPT_ARG_PRIVACY], l);
1630                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1631                 } else {
1632                         ast_verb(3, "Privacy Screening, clid is '%s'\n", l);
1633                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1634                 }
1635         } else {
1636                 char *tnam, *tn2;
1637
1638                 tnam = ast_strdupa(chan->name);
1639                 /* clean the channel name so slashes don't try to end up in disk file name */
1640                 for (tn2 = tnam; *tn2; tn2++) {
1641                         if (*tn2 == '/')  /* any other chars to be afraid of? */
1642                                 *tn2 = '=';
1643                 }
1644                 ast_verb(3, "Privacy-- callerid is empty\n");
1645
1646                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", chan->exten, tnam);
1647                 l = callerid;
1648                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1649         }
1650
1651         ast_copy_string(pa->privcid, l, sizeof(pa->privcid));
1652
1653         if (strncmp(pa->privcid, "NOCALLERID", 10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCALLERID)) {
1654                 /* if callerid is set and OPT_SCREEN_NOCALLERID is set also */
1655                 ast_verb(3, "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1656                 pa->privdb_val = AST_PRIVACY_ALLOW;
1657         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCALLERID) && strncmp(pa->privcid, "NOCALLERID", 10) == 0) {
1658                 ast_verb(3, "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1659         }
1660         
1661         if (pa->privdb_val == AST_PRIVACY_DENY) {
1662                 ast_verb(3, "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1663                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1664                 return 0;
1665         } else if (pa->privdb_val == AST_PRIVACY_KILL) {
1666                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1667                 return 0; /* Is this right? */
1668         } else if (pa->privdb_val == AST_PRIVACY_TORTURE) {
1669                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1670                 return 0; /* is this right??? */
1671         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN) {
1672                 /* Get the user's intro, store it in priv-callerintros/$CID,
1673                    unless it is already there-- this should be done before the
1674                    call is actually dialed  */
1675
1676                 /* make sure the priv-callerintros dir actually exists */
1677                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1678                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1679                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1680                         return -1;
1681                 }
1682
1683                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1684                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1685                         /* the DELUX version of this code would allow this caller the
1686                            option to hear and retape their previously recorded intro.
1687                         */
1688                 } else {
1689                         int duration; /* for feedback from play_and_wait */
1690                         /* the file doesn't exist yet. Let the caller submit his
1691                            vocal intro for posterity */
1692                         /* priv-recordintro script:
1693
1694                            "At the tone, please say your name:"
1695
1696                         */
1697                         silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
1698                         ast_answer(chan);
1699                         res = ast_play_and_record(chan, "priv-recordintro", pa->privintro, 4, "gsm", &duration, silencethreshold, 2000, 0);  /* NOTE: I've reduced the total time to 4 sec */
1700                                                                         /* don't think we'll need a lock removed, we took care of
1701                                                                            conflicts by naming the pa.privintro file */
1702                         if (res == -1) {
1703                                 /* Delete the file regardless since they hung up during recording */
1704                                 ast_filedelete(pa->privintro, NULL);
1705                                 if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1706                                         ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1707                                 else
1708                                         ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1709                                 return -1;
1710                         }
1711                         if (!ast_streamfile(chan, "vm-dialout", chan->language) )
1712                                 ast_waitstream(chan, "");
1713                 }
1714         }
1715         return 1; /* success */
1716 }
1717
1718 static void end_bridge_callback(void *data)
1719 {
1720         char buf[80];
1721         time_t end;
1722         struct ast_channel *chan = data;
1723
1724         if (!chan->cdr) {
1725                 return;
1726         }
1727
1728         time(&end);
1729
1730         ast_channel_lock(chan);
1731         if (chan->cdr->answer.tv_sec) {
1732                 snprintf(buf, sizeof(buf), "%ld", (long) end - chan->cdr->answer.tv_sec);
1733                 pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
1734         }
1735
1736         if (chan->cdr->start.tv_sec) {
1737                 snprintf(buf, sizeof(buf), "%ld", (long) end - chan->cdr->start.tv_sec);
1738                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
1739         }
1740         ast_channel_unlock(chan);
1741 }
1742
1743 static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator) {
1744         bconfig->end_bridge_callback_data = originator;
1745 }
1746
1747 static int dial_handle_playtones(struct ast_channel *chan, const char *data)
1748 {
1749         struct ast_tone_zone_sound *ts = NULL;
1750         int res;
1751         const char *str = data;
1752
1753         if (ast_strlen_zero(str)) {
1754                 ast_debug(1,"Nothing to play\n");
1755                 return -1;
1756         }
1757
1758         ts = ast_get_indication_tone(chan->zone, str);
1759
1760         if (ts && ts->data[0]) {
1761                 res = ast_playtones_start(chan, 0, ts->data, 0);
1762         } else {
1763                 res = -1;
1764         }
1765
1766         if (ts) {
1767                 ts = ast_tone_zone_sound_unref(ts);
1768         }
1769
1770         if (res) {
1771                 ast_log(LOG_WARNING, "Unable to start playtone \'%s\'\n", str);
1772         }
1773
1774         return res;
1775 }
1776
1777 static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast_flags64 *peerflags, int *continue_exec)
1778 {
1779         int res = -1; /* default: error */
1780         char *rest, *cur; /* scan the list of destinations */
1781         struct chanlist *outgoing = NULL; /* list of destinations */
1782         struct ast_channel *peer;
1783         int to; /* timeout */
1784         struct cause_args num = { chan, 0, 0, 0 };
1785         int cause;
1786         char numsubst[256];
1787         char *cid_num = NULL, *cid_name = NULL, *cid_tag = NULL, *cid_pres = NULL;
1788
1789         struct ast_bridge_config config = { { 0, } };
1790         struct timeval calldurationlimit = { 0, };
1791         char *dtmfcalled = NULL, *dtmfcalling = NULL, *dtmf_progress=NULL;
1792         struct privacy_args pa = {
1793                 .sentringing = 0,
1794                 .privdb_val = 0,
1795                 .status = "INVALIDARGS",
1796         };
1797         int sentringing = 0, moh = 0;
1798         const char *outbound_group = NULL;
1799         int result = 0;
1800         char *parse;
1801         int opermode = 0;
1802         int delprivintro = 0;
1803         AST_DECLARE_APP_ARGS(args,
1804                 AST_APP_ARG(peers);
1805                 AST_APP_ARG(timeout);
1806                 AST_APP_ARG(options);
1807                 AST_APP_ARG(url);
1808         );
1809         struct ast_flags64 opts = { 0, };
1810         char *opt_args[OPT_ARG_ARRAY_SIZE];
1811         struct ast_datastore *datastore = NULL;
1812         int fulldial = 0, num_dialed = 0;
1813         int ignore_cc = 0;
1814         char device_name[AST_CHANNEL_NAME];
1815
1816         /* Reset all DIAL variables back to blank, to prevent confusion (in case we don't reset all of them). */
1817         pbx_builtin_setvar_helper(chan, "DIALSTATUS", "");
1818         pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", "");
1819         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", "");
1820         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", "");
1821         pbx_builtin_setvar_helper(chan, "DIALEDTIME", "");
1822
1823         if (ast_strlen_zero(data)) {
1824                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1825                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1826                 return -1;
1827         }
1828
1829         parse = ast_strdupa(data);
1830
1831         AST_STANDARD_APP_ARGS(args, parse);
1832
1833         if (!ast_strlen_zero(args.options) &&
1834                 ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
1835                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1836                 goto done;
1837         }
1838
1839         if (ast_strlen_zero(args.peers)) {
1840                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1841                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1842                 goto done;
1843         }
1844
1845         if (ast_cc_call_init(chan, &ignore_cc)) {
1846                 goto done;
1847         }
1848
1849         if (ast_test_flag64(&opts, OPT_SCREEN_NOINTRO) && !ast_strlen_zero(opt_args[OPT_ARG_SCREEN_NOINTRO])) {
1850                 delprivintro = atoi(opt_args[OPT_ARG_SCREEN_NOINTRO]);
1851
1852                 if (delprivintro < 0 || delprivintro > 1) {
1853                         ast_log(LOG_WARNING, "Unknown argument %d specified to n option, ignoring\n", delprivintro);
1854                         delprivintro = 0;
1855                 }
1856         }
1857
1858         if (!ast_test_flag64(&opts, OPT_RINGBACK)) {
1859                 opt_args[OPT_ARG_RINGBACK] = NULL;
1860         }
1861
1862         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
1863                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
1864                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
1865         }
1866
1867         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
1868                 calldurationlimit.tv_sec = atoi(opt_args[OPT_ARG_DURATION_STOP]);
1869                 if (!calldurationlimit.tv_sec) {
1870                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
1871                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1872                         goto done;
1873                 }
1874                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n", calldurationlimit.tv_sec + calldurationlimit.tv_usec / 1000000.0);
1875         }
1876
1877         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
1878                 dtmf_progress = opt_args[OPT_ARG_SENDDTMF];
1879                 dtmfcalled = strsep(&dtmf_progress, ":");
1880                 dtmfcalling = strsep(&dtmf_progress, ":");
1881         }
1882
1883         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
1884                 if (ast_bridge_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
1885                         goto done;
1886         }
1887
1888         if (ast_test_flag64(&opts, OPT_FORCECLID) && !ast_strlen_zero(opt_args[OPT_ARG_FORCECLID]))
1889                 ast_callerid_parse(opt_args[OPT_ARG_FORCECLID], &cid_name, &cid_num);
1890         if (ast_test_flag64(&opts, OPT_FORCE_CID_TAG) && !ast_strlen_zero(opt_args[OPT_ARG_FORCE_CID_TAG]))
1891                 cid_tag = ast_strdupa(opt_args[OPT_ARG_FORCE_CID_TAG]);
1892         if (ast_test_flag64(&opts, OPT_FORCE_CID_PRES) && !ast_strlen_zero(opt_args[OPT_ARG_FORCE_CID_PRES]))
1893                 cid_pres = ast_strdupa(opt_args[OPT_ARG_FORCE_CID_PRES]);
1894         if (ast_test_flag64(&opts, OPT_RESETCDR) && chan->cdr)
1895                 ast_cdr_reset(chan->cdr, NULL);
1896         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
1897                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(chan->exten);
1898
1899         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
1900                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
1901                 if (res <= 0)
1902                         goto out;
1903                 res = -1; /* reset default */
1904         }
1905
1906         if (ast_test_flag64(&opts, OPT_DTMF_EXIT) || ast_test_flag64(&opts, OPT_CALLER_HANGUP)) {
1907                 __ast_answer(chan, 0, 0);
1908         }
1909
1910         if (continue_exec)
1911                 *continue_exec = 0;
1912
1913         /* If a channel group has been specified, get it for use when we create peer channels */
1914
1915         ast_channel_lock(chan);
1916         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
1917                 outbound_group = ast_strdupa(outbound_group);   
1918                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
1919         } else if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP"))) {
1920                 outbound_group = ast_strdupa(outbound_group);
1921         }
1922         ast_channel_unlock(chan);       
1923         ast_copy_flags64(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING | OPT_IGNORE_CONNECTEDLINE |
1924                          OPT_CANCEL_TIMEOUT | OPT_ANNOUNCE | OPT_CALLEE_MACRO | OPT_CALLEE_GOSUB | OPT_FORCECLID);
1925
1926         /* loop through the list of dial destinations */
1927         rest = args.peers;
1928         while ((cur = strsep(&rest, "&")) ) {
1929                 struct chanlist *tmp;
1930                 struct ast_channel *tc; /* channel for this destination */
1931                 /* Get a technology/[device:]number pair */
1932                 char *number = cur;
1933                 char *interface = ast_strdupa(number);
1934                 char *tech = strsep(&number, "/");
1935                 /* find if we already dialed this interface */
1936                 struct ast_dialed_interface *di;
1937                 AST_LIST_HEAD(, ast_dialed_interface) *dialed_interfaces;
1938                 num_dialed++;
1939                 if (!number) {
1940                         ast_log(LOG_WARNING, "Dial argument takes format (technology/[device:]number1)\n");
1941                         goto out;
1942                 }
1943                 if (!(tmp = ast_calloc(1, sizeof(*tmp))))
1944                         goto out;
1945                 if (opts.flags) {
1946                         ast_copy_flags64(tmp, &opts,
1947                                 OPT_CANCEL_ELSEWHERE |
1948                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1949                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1950                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1951                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1952                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1953                                 OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID);
1954                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);
1955                 }
1956                 ast_copy_string(numsubst, number, sizeof(numsubst));
1957                 /* Request the peer */
1958
1959                 ast_channel_lock(chan);
1960                 datastore = ast_channel_datastore_find(chan, &dialed_interface_info, NULL);
1961                 /*
1962                  * Seed the chanlist's connected line information with previously
1963                  * acquired connected line info from the incoming channel.  The
1964                  * previously acquired connected line info could have been set
1965                  * through the CONNECTED_LINE dialplan function.
1966                  */
1967                 ast_party_connected_line_copy(&tmp->connected, &chan->connected);
1968                 ast_channel_unlock(chan);
1969
1970                 if (datastore)
1971                         dialed_interfaces = datastore->data;
1972                 else {
1973                         if (!(datastore = ast_datastore_alloc(&dialed_interface_info, NULL))) {
1974                                 ast_log(LOG_WARNING, "Unable to create channel datastore for dialed interfaces. Aborting!\n");
1975                                 chanlist_free(tmp);
1976                                 goto out;
1977                         }
1978
1979                         datastore->inheritance = DATASTORE_INHERIT_FOREVER;
1980
1981                         if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
1982                                 ast_datastore_free(datastore);
1983                                 chanlist_free(tmp);
1984                                 goto out;
1985                         }
1986
1987                         datastore->data = dialed_interfaces;
1988                         AST_LIST_HEAD_INIT(dialed_interfaces);
1989
1990                         ast_channel_lock(chan);
1991                         ast_channel_datastore_add(chan, datastore);
1992                         ast_channel_unlock(chan);
1993                 }
1994
1995                 AST_LIST_LOCK(dialed_interfaces);
1996                 AST_LIST_TRAVERSE(dialed_interfaces, di, list) {
1997                         if (!strcasecmp(di->interface, interface)) {
1998                                 ast_log(LOG_WARNING, "Skipping dialing interface '%s' again since it has already been dialed\n",
1999                                         di->interface);
2000                                 break;
2001                         }
2002                 }
2003                 AST_LIST_UNLOCK(dialed_interfaces);
2004
2005                 if (di) {
2006                         fulldial++;
2007                         chanlist_free(tmp);
2008                         continue;
2009                 }
2010
2011                 /* It is always ok to dial a Local interface.  We only keep track of
2012                  * which "real" interfaces have been dialed.  The Local channel will
2013                  * inherit this list so that if it ends up dialing a real interface,
2014                  * it won't call one that has already been called. */
2015                 if (strcasecmp(tech, "Local")) {
2016                         if (!(di = ast_calloc(1, sizeof(*di) + strlen(interface)))) {
2017                                 AST_LIST_UNLOCK(dialed_interfaces);
2018                                 chanlist_free(tmp);
2019                                 goto out;
2020                         }
2021                         strcpy(di->interface, interface);
2022
2023                         AST_LIST_LOCK(dialed_interfaces);
2024                         AST_LIST_INSERT_TAIL(dialed_interfaces, di, list);
2025                         AST_LIST_UNLOCK(dialed_interfaces);
2026                 }
2027
2028                 tc = ast_request(tech, chan->nativeformats, chan, numsubst, &cause);
2029                 if (!tc) {
2030                         /* If we can't, just go on to the next call */
2031                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
2032                                 tech, cause, ast_cause2str(cause));
2033                         handle_cause(cause, &num);
2034                         if (!rest) /* we are on the last destination */
2035                                 chan->hangupcause = cause;
2036                         chanlist_free(tmp);
2037                         if (!ignore_cc && (cause == AST_CAUSE_BUSY || cause == AST_CAUSE_CONGESTION)) {
2038                                 if (!ast_cc_callback(chan, tech, numsubst, ast_cc_busy_interface)) {
2039                                         ast_cc_extension_monitor_add_dialstring(chan, interface, "");
2040                                 }
2041                         }
2042                         continue;
2043                 }
2044                 ast_channel_get_device_name(tc, device_name, sizeof(device_name));
2045                 if (!ignore_cc) {
2046                         ast_cc_extension_monitor_add_dialstring(chan, interface, device_name);
2047                 }
2048                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", numsubst);
2049
2050                 ast_channel_lock(tc);
2051                 while (ast_channel_trylock(chan)) {
2052                         CHANNEL_DEADLOCK_AVOIDANCE(tc);
2053                 }
2054                 /* Setup outgoing SDP to match incoming one */
2055                 if (!outgoing && !rest && CAN_EARLY_BRIDGE(peerflags, chan, tc)) {
2056                         ast_rtp_instance_early_bridge_make_compatible(tc, chan);
2057                 }
2058                 
2059                 /* Inherit specially named variables from parent channel */
2060                 ast_channel_inherit_variables(chan, tc);
2061                 ast_channel_datastore_inherit(chan, tc);
2062
2063                 tc->appl = "AppDial";
2064                 tc->data = "(Outgoing Line)";
2065                 memset(&tc->whentohangup, 0, sizeof(tc->whentohangup));
2066
2067                 /* If the new channel has no callerid, try to guess what it should be */
2068                 if (!tc->caller.id.number.valid) {
2069                         if (chan->connected.id.number.valid) {
2070                                 struct ast_party_caller caller;
2071
2072                                 ast_party_caller_set_init(&caller, &tc->caller);
2073                                 caller.id = chan->connected.id;
2074                                 caller.ani = chan->connected.ani;
2075                                 ast_channel_set_caller_event(tc, &caller, NULL);
2076                         } else if (!ast_strlen_zero(chan->dialed.number.str)) {
2077                                 ast_set_callerid(tc, chan->dialed.number.str, NULL, NULL);
2078                         } else if (!ast_strlen_zero(S_OR(chan->macroexten, chan->exten))) {
2079                                 ast_set_callerid(tc, S_OR(chan->macroexten, chan->exten), NULL, NULL);
2080                         }
2081                         ast_set_flag64(tmp, DIAL_CALLERID_ABSENT);
2082                 }
2083
2084                 if (ast_test_flag64(peerflags, OPT_FORCECLID) && !ast_strlen_zero(opt_args[OPT_ARG_FORCECLID])) {
2085                         struct ast_party_connected_line connected;
2086                         int pres;
2087
2088                         ast_party_connected_line_set_init(&connected, &tmp->chan->connected);
2089                         if (cid_pres) {
2090                                 pres = ast_parse_caller_presentation(cid_pres);
2091                                 if (pres < 0) {
2092                                         pres = AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN;
2093                                 }
2094                         } else {
2095                                 pres = AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN;
2096                         }
2097                         if (cid_num) {
2098                                 connected.id.number.valid = 1;
2099                                 connected.id.number.str = cid_num;
2100                                 connected.id.number.presentation = pres;
2101                         }
2102                         if (cid_name) {
2103                                 connected.id.name.valid = 1;
2104                                 connected.id.name.str = cid_name;
2105                                 connected.id.name.presentation = pres;
2106                         }
2107                         connected.id.tag = cid_tag;
2108                         ast_channel_set_connected_line(tmp->chan, &connected, NULL);
2109                 } else {
2110                         ast_connected_line_copy_from_caller(&tc->connected, &chan->caller);
2111                 }
2112
2113                 ast_party_redirecting_copy(&tc->redirecting, &chan->redirecting);
2114
2115                 tc->dialed.transit_network_select = chan->dialed.transit_network_select;
2116
2117                 if (!ast_strlen_zero(chan->accountcode)) {
2118                         ast_string_field_set(tc, peeraccount, chan->accountcode);
2119                 }
2120                 if (ast_strlen_zero(tc->musicclass))
2121                         ast_string_field_set(tc, musicclass, chan->musicclass);
2122
2123                 /* Pass ADSI CPE and transfer capability */
2124                 tc->adsicpe = chan->adsicpe;
2125                 tc->transfercapability = chan->transfercapability;
2126
2127                 /* If we have an outbound group, set this peer channel to it */
2128                 if (outbound_group)
2129                         ast_app_group_set_channel(tc, outbound_group);
2130                 /* If the calling channel has the ANSWERED_ELSEWHERE flag set, inherit it. This is to support local channels */
2131                 if (ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE))
2132                         ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
2133
2134                 /* Check if we're forced by configuration */
2135                 if (ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE))
2136                          ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
2137
2138
2139                 /* Inherit context and extension */
2140                 ast_string_field_set(tc, dialcontext, ast_strlen_zero(chan->macrocontext) ? chan->context : chan->macrocontext);
2141                 if (!ast_strlen_zero(chan->macroexten))
2142                         ast_copy_string(tc->exten, chan->macroexten, sizeof(tc->exten));
2143                 else
2144                         ast_copy_string(tc->exten, chan->exten, sizeof(tc->exten));
2145
2146                 ast_channel_unlock(tc);
2147                 res = ast_call(tc, numsubst, 0); /* Place the call, but don't wait on the answer */
2148
2149                 /* Save the info in cdr's that we called them */
2150                 if (chan->cdr)
2151                         ast_cdr_setdestchan(chan->cdr, tc->name);
2152
2153                 /* check the results of ast_call */
2154                 if (res) {
2155                         /* Again, keep going even if there's an error */
2156                         ast_debug(1, "ast call on peer returned %d\n", res);
2157                         ast_verb(3, "Couldn't call %s\n", numsubst);
2158                         if (tc->hangupcause) {
2159                                 chan->hangupcause = tc->hangupcause;
2160                         }
2161                         ast_channel_unlock(chan);
2162                         ast_cc_call_failed(chan, tc, interface);
2163                         ast_hangup(tc);
2164                         tc = NULL;
2165                         chanlist_free(tmp);
2166                         continue;
2167                 } else {
2168                         const char *tmpexten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
2169                         senddialevent(chan, tc, numsubst);
2170                         ast_verb(3, "Called %s\n", numsubst);
2171                         ast_channel_unlock(chan);
2172                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
2173                                 char cidname[AST_MAX_EXTENSION];
2174                                 ast_set_callerid(tc, tmpexten, get_cid_name(cidname, sizeof(cidname), chan), NULL);
2175                         }
2176                 }
2177                 /* Put them in the list of outgoing thingies...  We're ready now.
2178                    XXX If we're forcibly removed, these outgoing calls won't get
2179                    hung up XXX */
2180                 ast_set_flag64(tmp, DIAL_STILLGOING);
2181                 tmp->chan = tc;
2182                 tmp->next = outgoing;
2183                 outgoing = tmp;
2184                 /* If this line is up, don't try anybody else */
2185                 if (outgoing->chan->_state == AST_STATE_UP)
2186                         break;
2187         }
2188         
2189         if (ast_strlen_zero(args.timeout)) {
2190                 to = -1;
2191         } else {
2192                 to = atoi(args.timeout);
2193                 if (to > 0)
2194                         to *= 1000;
2195                 else {
2196                         ast_log(LOG_WARNING, "Invalid timeout specified: '%s'. Setting timeout to infinite\n", args.timeout);
2197                         to = -1;
2198                 }
2199         }
2200
2201         if (!outgoing) {
2202                 strcpy(pa.status, "CHANUNAVAIL");
2203                 if (fulldial == num_dialed) {
2204                         res = -1;
2205                         goto out;
2206                 }
2207         } else {
2208                 /* Our status will at least be NOANSWER */
2209                 strcpy(pa.status, "NOANSWER");
2210                 if (ast_test_flag64(outgoing, OPT_MUSICBACK)) {
2211                         moh = 1;
2212                         if (!ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
2213                                 char *original_moh = ast_strdupa(chan->musicclass);
2214                                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
2215                                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
2216                                 ast_string_field_set(chan, musicclass, original_moh);
2217                         } else {
2218                                 ast_moh_start(chan, NULL, NULL);
2219                         }
2220                         ast_indicate(chan, AST_CONTROL_PROGRESS);
2221                 } else if (ast_test_flag64(outgoing, OPT_RINGBACK)) {
2222                         if (!ast_strlen_zero(opt_args[OPT_ARG_RINGBACK])) {
2223                                 if (dial_handle_playtones(chan, opt_args[OPT_ARG_RINGBACK])){
2224                                         ast_indicate(chan, AST_CONTROL_RINGING);
2225                                         sentringing++;
2226                                 } else {
2227                                         ast_indicate(chan, AST_CONTROL_PROGRESS);
2228                                 }
2229                         } else {
2230                                 ast_indicate(chan, AST_CONTROL_RINGING);
2231                                 sentringing++;
2232                         }
2233                 }
2234         }
2235
2236         peer = wait_for_answer(chan, outgoing, &to, peerflags, opt_args, &pa, &num, &result, dtmf_progress, ignore_cc);
2237
2238         /* The ast_channel_datastore_remove() function could fail here if the
2239          * datastore was moved to another channel during a masquerade. If this is
2240          * the case, don't free the datastore here because later, when the channel
2241          * to which the datastore was moved hangs up, it will attempt to free this
2242          * datastore again, causing a crash
2243          */
2244         if (!ast_channel_datastore_remove(chan, datastore))
2245                 ast_datastore_free(datastore);
2246         if (!peer) {
2247                 if (result) {
2248                         res = result;
2249                 } else if (to) { /* Musta gotten hung up */
2250                         res = -1;
2251                 } else { /* Nobody answered, next please? */
2252                         res = 0;
2253                 }
2254
2255                 /* SIP, in particular, sends back this error code to indicate an
2256                  * overlap dialled number needs more digits. */
2257                 if (chan->hangupcause == AST_CAUSE_INVALID_NUMBER_FORMAT) {
2258                         res = AST_PBX_INCOMPLETE;
2259                 }
2260
2261                 /* almost done, although the 'else' block is 400 lines */
2262         } else {
2263                 const char *number;
2264
2265                 if (ast_test_flag64(&opts, OPT_CALLER_ANSWER))
2266                         ast_answer(chan);
2267
2268                 strcpy(pa.status, "ANSWER");
2269                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2270                 /* Ah ha!  Someone answered within the desired timeframe.  Of course after this
2271                    we will always return with -1 so that it is hung up properly after the
2272                    conversation.  */
2273                 hanguptree(outgoing, peer, 1);
2274                 outgoing = NULL;
2275                 /* If appropriate, log that we have a destination channel and set the answer time */
2276                 if (chan->cdr) {
2277                         ast_cdr_setdestchan(chan->cdr, peer->name);
2278                         ast_cdr_setanswer(chan->cdr, peer->cdr->answer);
2279                 }
2280                 if (peer->name)
2281                         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", peer->name);
2282                 
2283                 ast_channel_lock(peer);
2284                 number = pbx_builtin_getvar_helper(peer, "DIALEDPEERNUMBER"); 
2285                 if (!number)
2286                         number = numsubst;
2287                 pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", number);
2288                 ast_channel_unlock(peer);
2289
2290                 if (!ast_strlen_zero(args.url) && ast_channel_supports_html(peer) ) {
2291                         ast_debug(1, "app_dial: sendurl=%s.\n", args.url);
2292                         ast_channel_sendurl( peer, args.url );
2293                 }
2294                 if ( (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) && pa.privdb_val == AST_PRIVACY_UNKNOWN) {
2295                         if (do_privacy(chan, peer, &opts, opt_args, &pa)) {
2296                                 res = 0;
2297                                 goto out;
2298                         }
2299                 }
2300                 if (!ast_test_flag64(&opts, OPT_ANNOUNCE) || ast_strlen_zero(opt_args[OPT_ARG_ANNOUNCE])) {
2301                         res = 0;
2302                 } else {
2303                         int digit = 0;
2304                         struct ast_channel *chans[2];
2305                         struct ast_channel *active_chan;
2306
2307                         chans[0] = chan;
2308                         chans[1] = peer;
2309
2310                         /* we need to stream the announcment while monitoring the caller for a hangup */
2311
2312                         /* stream the file */
2313                         res = ast_streamfile(peer, opt_args[OPT_ARG_ANNOUNCE], peer->language);
2314                         if (res) {
2315                                 res = 0;
2316                                 ast_log(LOG_ERROR, "error streaming file '%s' to callee\n", opt_args[OPT_ARG_ANNOUNCE]);
2317                         }
2318
2319                         ast_set_flag(peer, AST_FLAG_END_DTMF_ONLY);
2320                         while (peer->stream) {
2321                                 int ms;
2322
2323                                 ms = ast_sched_wait(peer->sched);
2324
2325                                 if (ms < 0 && !peer->timingfunc) {
2326                                         ast_stopstream(peer);
2327                                         break;
2328                                 }
2329                                 if (ms < 0)
2330                                         ms = 1000;
2331
2332                                 active_chan = ast_waitfor_n(chans, 2, &ms);
2333                                 if (active_chan) {
2334                                         struct ast_frame *fr = ast_read(active_chan);
2335                                         if (!fr) {
2336                                                 ast_hangup(peer);
2337                                                 res = -1;
2338                                                 goto done;
2339                                         }
2340                                         switch(fr->frametype) {
2341                                                 case AST_FRAME_DTMF_END:
2342                                                         digit = fr->subclass.integer;
2343                                                         if (active_chan == peer && strchr(AST_DIGIT_ANY, res)) {
2344                                                                 ast_stopstream(peer);
2345                                                                 res = ast_senddigit(chan, digit, 0);
2346                                                         }
2347                                                         break;
2348                                                 case AST_FRAME_CONTROL:
2349                                                         switch (fr->subclass.integer) {
2350                                                                 case AST_CONTROL_HANGUP:
2351                                                                         ast_frfree(fr);
2352                                                                         ast_hangup(peer);
2353                                                                         res = -1;
2354                                                                         goto done;
2355                                                                 default:
2356                                                                         break;
2357                                                         }
2358                                                         break;
2359                                                 default:
2360                                                         /* Ignore all others */
2361                                                         break;
2362                                         }
2363                                         ast_frfree(fr);
2364                                 }
2365                                 ast_sched_runq(peer->sched);
2366                         }
2367                         ast_clear_flag(peer, AST_FLAG_END_DTMF_ONLY);
2368                 }
2369
2370                 if (chan && peer && ast_test_flag64(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
2371                         /* chan and peer are going into the PBX, they both
2372                          * should probably get CDR records. */
2373                         ast_clear_flag(chan->cdr, AST_CDR_FLAG_DIALED);
2374                         ast_clear_flag(peer->cdr, AST_CDR_FLAG_DIALED);
2375
2376                         replace_macro_delimiter(opt_args[OPT_ARG_GOTO]);
2377                         ast_parseable_goto(chan, opt_args[OPT_ARG_GOTO]);
2378                         /* peer goes to the same context and extension as chan, so just copy info from chan*/
2379                         ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2380                         ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2381                         peer->priority = chan->priority + 2;
2382                         ast_pbx_start(peer);
2383                         hanguptree(outgoing, NULL, ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE) ? 1 : 0);
2384                         if (continue_exec)
2385                                 *continue_exec = 1;
2386                         res = 0;
2387                         goto done;
2388                 }
2389
2390                 if (ast_test_flag64(&opts, OPT_CALLEE_MACRO) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_MACRO])) {
2391                         struct ast_app *theapp;
2392                         const char *macro_result;
2393
2394                         res = ast_autoservice_start(chan);
2395                         if (res) {
2396                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2397                                 res = -1;
2398                         }
2399
2400                         theapp = pbx_findapp("Macro");
2401
2402                         if (theapp && !res) { /* XXX why check res here ? */
2403                                 /* Set peer->exten and peer->context so that MACRO_EXTEN and MACRO_CONTEXT get set */
2404                                 ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2405                                 ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2406
2407                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_MACRO]);
2408                                 res = pbx_exec(peer, theapp, opt_args[OPT_ARG_CALLEE_MACRO]);
2409                                 ast_debug(1, "Macro exited with status %d\n", res);
2410                                 res = 0;
2411                         } else {
2412                                 ast_log(LOG_ERROR, "Could not find application Macro\n");
2413                                 res = -1;
2414                         }
2415
2416                         if (ast_autoservice_stop(chan) < 0) {
2417                                 res = -1;
2418                         }
2419
2420                         ast_channel_lock(peer);
2421
2422                         if (!res && (macro_result = pbx_builtin_getvar_helper(peer, "MACRO_RESULT"))) {
2423                                 char *macro_transfer_dest;
2424
2425                                 if (!strcasecmp(macro_result, "BUSY")) {
2426                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2427                                         ast_set_flag64(peerflags, OPT_GO_ON);
2428                                         res = -1;
2429                                 } else if (!strcasecmp(macro_result, "CONGESTION") || !strcasecmp(macro_result, "CHANUNAVAIL")) {
2430                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2431                                         ast_set_flag64(peerflags, OPT_GO_ON);
2432                                         res = -1;
2433                                 } else if (!strcasecmp(macro_result, "CONTINUE")) {
2434                                         /* hangup peer and keep chan alive assuming the macro has changed
2435                                            the context / exten / priority or perhaps
2436                                            the next priority in the current exten is desired.
2437                                         */
2438                                         ast_set_flag64(peerflags, OPT_GO_ON);
2439                                         res = -1;
2440                                 } else if (!strcasecmp(macro_result, "ABORT")) {
2441                                         /* Hangup both ends unless the caller has the g flag */
2442                                         res = -1;
2443                                 } else if (!strncasecmp(macro_result, "GOTO:", 5) && (macro_transfer_dest = ast_strdupa(macro_result + 5))) {
2444                                         res = -1;
2445                                         /* perform a transfer to a new extension */
2446                                         if (strchr(macro_transfer_dest, '^')) { /* context^exten^priority*/
2447                                                 replace_macro_delimiter(macro_transfer_dest);
2448                                                 if (!ast_parseable_goto(chan, macro_transfer_dest))
2449                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2450                                         }
2451                                 }
2452                         }
2453
2454                         ast_channel_unlock(peer);
2455                 }
2456
2457                 if (ast_test_flag64(&opts, OPT_CALLEE_GOSUB) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GOSUB])) {
2458                         struct ast_app *theapp;
2459                         const char *gosub_result;
2460                         char *gosub_args, *gosub_argstart;
2461                         int res9 = -1;
2462
2463                         res9 = ast_autoservice_start(chan);
2464                         if (res9) {
2465                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2466                                 res9 = -1;
2467                         }
2468
2469                         theapp = pbx_findapp("Gosub");
2470
2471                         if (theapp && !res9) {
2472                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GOSUB]);
2473
2474                                 /* Set where we came from */
2475                                 ast_copy_string(peer->context, "app_dial_gosub_virtual_context", sizeof(peer->context));
2476                                 ast_copy_string(peer->exten, "s", sizeof(peer->exten));
2477                                 peer->priority = 0;
2478
2479                                 gosub_argstart = strchr(opt_args[OPT_ARG_CALLEE_GOSUB], ',');
2480                                 if (gosub_argstart) {
2481                                         *gosub_argstart = 0;
2482                                         if (asprintf(&gosub_args, "%s,s,1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], gosub_argstart + 1) < 0) {
2483                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2484                                                 gosub_args = NULL;
2485                                         }
2486                                         *gosub_argstart = ',';
2487                                 } else {
2488                                         if (asprintf(&gosub_args, "%s,s,1", opt_args[OPT_ARG_CALLEE_GOSUB]) < 0) {
2489                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2490                                                 gosub_args = NULL;
2491                                         }
2492                                 }
2493
2494                                 if (gosub_args) {
2495                                         res9 = pbx_exec(peer, theapp, gosub_args);
2496                                         if (!res9) {
2497                                                 struct ast_pbx_args args;
2498                                                 /* A struct initializer fails to compile for this case ... */
2499                                                 memset(&args, 0, sizeof(args));
2500                                                 args.no_hangup_chan = 1;
2501                                                 ast_pbx_run_args(peer, &args);
2502                                         }
2503                                         ast_free(gosub_args);
2504                                         ast_debug(1, "Gosub exited with status %d\n", res9);
2505                                 } else {
2506                                         ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
2507                                 }
2508
2509                         } else if (!res9) {
2510                                 ast_log(LOG_ERROR, "Could not find application Gosub\n");
2511                                 res9 = -1;
2512                         }
2513
2514                         if (ast_autoservice_stop(chan) < 0) {
2515                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2516                                 res9 = -1;
2517                         }
2518                         
2519                         ast_channel_lock(peer);
2520
2521                         if (!res9 && (gosub_result = pbx_builtin_getvar_helper(peer, "GOSUB_RESULT"))) {
2522                                 char *gosub_transfer_dest;
2523                                 const char *gosub_retval = pbx_builtin_getvar_helper(peer, "GOSUB_RETVAL");
2524
2525                                 /* Inherit return value from the peer, so it can be used in the master */
2526                                 if (gosub_retval) {
2527                                         pbx_builtin_setvar_helper(chan, "GOSUB_RETVAL", gosub_retval);
2528                                 }
2529
2530                                 if (!strcasecmp(gosub_result, "BUSY")) {
2531                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2532                                         ast_set_flag64(peerflags, OPT_GO_ON);
2533                                         res = -1;