249c0dcb81ecbcbf95e61abf10f11d289535585f
[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
65 /*** DOCUMENTATION
66         <application name="Dial" language="en_US">
67                 <synopsis>
68                         Attempt to connect to another device or endpoint and bridge the call.
69                 </synopsis>
70                 <syntax>
71                         <parameter name="Technology/Resource" required="true" argsep="&amp;">
72                                 <argument name="Technology/Resource" required="true">
73                                         <para>Specification of the device(s) to dial.  These must be in the format of
74                                         <literal>Technology/Resource</literal>, where <replaceable>Technology</replaceable>
75                                         represents a particular channel driver, and <replaceable>Resource</replaceable>
76                                         represents a resource available to that particular channel driver.</para>
77                                 </argument>
78                                 <argument name="Technology2/Resource2" required="false" multiple="true">
79                                         <para>Optional extra devices to dial in parallel</para>
80                                         <para>If you need more then one enter them as
81                                         Technology2/Resource2&amp;Technology3/Resourse3&amp;.....</para>
82                                 </argument>
83                         </parameter>
84                         <parameter name="timeout" required="false">
85                                 <para>Specifies the number of seconds we attempt to dial the specified devices</para>
86                                 <para>If not specified, this defaults to 136 years.</para>
87                         </parameter>
88                         <parameter name="options" required="false">
89                            <optionlist>
90                                 <option name="A">
91                                         <argument name="x" required="true">
92                                                 <para>The file to play to the called party</para>
93                                         </argument>
94                                         <para>Play an announcement to the called party, where <replaceable>x</replaceable> is the prompt to be played</para>
95                                 </option>
96                                 <option name="C">
97                                         <para>Reset the call detail record (CDR) for this call.</para>
98                                 </option>
99                                 <option name="c">
100                                         <para>If the Dial() application cancels this call, always set the flag to tell the channel
101                                         driver that the call is answered elsewhere.</para>
102                                 </option>
103                                 <option name="d">
104                                         <para>Allow the calling user to dial a 1 digit extension while waiting for
105                                         a call to be answered. Exit to that extension if it exists in the
106                                         current context, or the context defined in the <variable>EXITCONTEXT</variable> variable,
107                                         if it exists.</para>
108                                 </option>
109                                 <option name="D" argsep=":">
110                                         <argument name="called" />
111                                         <argument name="calling" />
112                                         <argument name="progress" />
113                                         <para>Send the specified DTMF strings <emphasis>after</emphasis> the called
114                                         party has answered, but before the call gets bridged. The 
115                                         <replaceable>called</replaceable> DTMF string is sent to the called party, and the 
116                                         <replaceable>calling</replaceable> DTMF string is sent to the calling party. Both arguments 
117                                         can be used alone.  If <replaceable>progress</replaceable> is specified, its DTMF is sent
118                                         immediately after receiving a PROGRESS message.</para>
119                                 </option>
120                                 <option name="e">
121                                         <para>Execute the <literal>h</literal> extension for peer after the call ends</para>
122                                 </option>
123                                 <option name="f">
124                                         <para>Force the callerid of the <emphasis>calling</emphasis> channel to be set as the
125                                         extension associated with the channel using a dialplan <literal>hint</literal>.
126                                         For example, some PSTNs do not allow CallerID to be set to anything
127                                         other than the number assigned to the caller.</para>
128                                 </option>
129                                 <option name="F" argsep="^">
130                                         <argument name="context" required="false" />
131                                         <argument name="exten" required="false" />
132                                         <argument name="priority" required="true" />
133                                         <para>When the caller hangs up, transfer the called party
134                                         to the specified destination and continue execution at that location.</para>
135                                 </option>
136                                 <option name="F">
137                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
138                                         source channel hangs up.</para>
139                                 </option>
140                                 <option name="g">
141                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
142                                         destination channel hangs up.</para>
143                                 </option>
144                                 <option name="G" argsep="^">
145                                         <argument name="context" required="false" />
146                                         <argument name="exten" required="false" />
147                                         <argument name="priority" required="true" />
148                                         <para>If the call is answered, transfer the calling party to
149                                         the specified <replaceable>priority</replaceable> and the called party to the specified 
150                                         <replaceable>priority</replaceable> plus one.</para>
151                                         <note>
152                                                 <para>You cannot use any additional action post answer options in conjunction with this option.</para>
153                                         </note>
154                                 </option>
155                                 <option name="h">
156                                         <para>Allow the called party to hang up by sending the <literal>*</literal> DTMF digit.</para>
157                                 </option>
158                                 <option name="H">
159                                         <para>Allow the calling party to hang up by hitting the <literal>*</literal> DTMF digit.</para>
160                                 </option>
161                                 <option name="i">
162                                         <para>Asterisk will ignore any forwarding requests it may receive on this dial attempt.</para>
163                                 </option>
164                                 <option name="I">
165                                         <para>Asterisk will ignore any connected line update requests or redirecting party update
166                                         requests it may receiveon this dial attempt.</para>
167                                 </option>
168                                 <option name="k">
169                                         <para>Allow the called party to enable parking of the call by sending
170                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
171                                 </option>
172                                 <option name="K">
173                                         <para>Allow the calling party to enable parking of the call by sending
174                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
175                                 </option>
176                                 <option name="L" argsep=":">
177                                         <argument name="x" required="true">
178                                                 <para>Maximum call time, in milliseconds</para>
179                                         </argument>
180                                         <argument name="y">
181                                                 <para>Warning time, in milliseconds</para>
182                                         </argument>
183                                         <argument name="z">
184                                                 <para>Repeat time, in milliseconds</para>
185                                         </argument>
186                                         <para>Limit the call to <replaceable>x</replaceable> milliseconds. Play a warning when <replaceable>y</replaceable> milliseconds are
187                                         left. Repeat the warning every <replaceable>z</replaceable> milliseconds until time expires.</para>
188                                         <para>This option is affected by the following variables:</para>
189                                         <variablelist>
190                                                 <variable name="LIMIT_PLAYAUDIO_CALLER">
191                                                         <value name="yes" default="true" />
192                                                         <value name="no" />
193                                                         <para>If set, this variable causes Asterisk to play the prompts to the caller.</para>
194                                                 </variable>
195                                                 <variable name="LIMIT_PLAYAUDIO_CALLEE">
196                                                         <value name="yes" />
197                                                         <value name="no" default="true"/>
198                                                         <para>If set, this variable causes Asterisk to play the prompts to the callee.</para>
199                                                 </variable>
200                                                 <variable name="LIMIT_TIMEOUT_FILE">
201                                                         <value name="filename"/>
202                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the timeout is reached.
203                                                         If not set, the time remaining will be announced.</para>
204                                                 </variable>
205                                                 <variable name="LIMIT_CONNECT_FILE">
206                                                         <value name="filename"/>
207                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the call begins.
208                                                         If not set, the time remaining will be announced.</para>
209                                                 </variable>
210                                                 <variable name="LIMIT_WARNING_FILE">
211                                                         <value name="filename"/>
212                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play as
213                                                         a warning when time <replaceable>x</replaceable> is reached. If not set, the time remaining will be announced.</para>
214                                                 </variable>
215                                         </variablelist>
216                                 </option>
217                                 <option name="m">
218                                         <argument name="class" required="false"/>
219                                         <para>Provide hold music to the calling party until a requested
220                                         channel answers. A specific music on hold <replaceable>class</replaceable>
221                                         (as defined in <filename>musiconhold.conf</filename>) can be specified.</para>
222                                 </option>
223                                 <option name="M" argsep="^">
224                                         <argument name="macro" required="true">
225                                                 <para>Name of the macro that should be executed.</para>
226                                         </argument>
227                                         <argument name="arg" multiple="true">
228                                                 <para>Macro arguments</para>
229                                         </argument>
230                                         <para>Execute the specified <replaceable>macro</replaceable> for the <emphasis>called</emphasis> channel 
231                                         before connecting to the calling channel. Arguments can be specified to the Macro
232                                         using <literal>^</literal> as a delimiter. The macro can set the variable
233                                         <variable>MACRO_RESULT</variable> to specify the following actions after the macro is
234                                         finished executing:</para>
235                                         <variablelist>
236                                                 <variable name="MACRO_RESULT">
237                                                         <para>If set, this action will be taken after the macro finished executing.</para>
238                                                         <value name="ABORT">
239                                                                 Hangup both legs of the call
240                                                         </value>
241                                                         <value name="CONGESTION">
242                                                                 Behave as if line congestion was encountered
243                                                         </value>
244                                                         <value name="BUSY">
245                                                                 Behave as if a busy signal was encountered
246                                                         </value>
247                                                         <value name="CONTINUE">
248                                                                 Hangup the called party and allow the calling party to continue dialplan execution at the next priority
249                                                         </value>
250                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
251                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
252                                                                 Transfer the call to the specified destination.
253                                                         </value>
254                                                 </variable>
255                                         </variablelist>
256                                         <note>
257                                                 <para>You cannot use any additional action post answer options in conjunction
258                                                 with this option. Also, pbx services are not run on the peer (called) channel,
259                                                 so you will not be able to set timeouts via the TIMEOUT() function in this macro.</para>
260                                         </note>
261                                         <warning><para>Be aware of the limitations that macros have, specifically with regards to use of
262                                         the <literal>WaitExten</literal> application. For more information, see the documentation for
263                                         Macro()</para></warning>
264                                 </option>
265                                 <option name="n">
266                                         <para>This option is a modifier for the call screening/privacy mode. (See the 
267                                         <literal>p</literal> and <literal>P</literal> options.) It specifies
268                                         that no introductions are to be saved in the <directory>priv-callerintros</directory>
269                                         directory.</para>
270                                 </option>
271                                 <option name="N">
272                                         <para>This option is a modifier for the call screening/privacy mode. It specifies
273                                         that if Caller*ID is present, do not screen the call.</para>
274                                 </option>
275                                 <option name="o">
276                                         <para>Specify that the Caller*ID that was present on the <emphasis>calling</emphasis> channel
277                                         be set as the Caller*ID on the <emphasis>called</emphasis> channel. This was the
278                                         behavior of Asterisk 1.0 and earlier.</para>
279                                 </option>
280                                 <option name="O">
281                                         <argument name="mode">
282                                                 <para>With <replaceable>mode</replaceable> either not specified or set to <literal>1</literal>,
283                                                 the originator hanging up will cause the phone to ring back immediately.</para>
284                                                 <para>With <replaceable>mode</replaceable> set to <literal>2</literal>, when the operator 
285                                                 flashes the trunk, it will ring their phone back.</para>
286                                         </argument>
287                                         <para>Enables <emphasis>operator services</emphasis> mode.  This option only
288                                         works when bridging a DAHDI channel to another DAHDI channel
289                                         only. if specified on non-DAHDI interfaces, it will be ignored.
290                                         When the destination answers (presumably an operator services
291                                         station), the originator no longer has control of their line.
292                                         They may hang up, but the switch will not release their line
293                                         until the destination party (the operator) hangs up.</para>
294                                 </option>
295                                 <option name="p">
296                                         <para>This option enables screening mode. This is basically Privacy mode
297                                         without memory.</para>
298                                 </option>
299                                 <option name="P">
300                                         <argument name="x" />
301                                         <para>Enable privacy mode. Use <replaceable>x</replaceable> as the family/key in the AstDB database if
302                                         it is provided. The current extension is used if a database family/key is not specified.</para>
303                                 </option>
304                                 <option name="r">
305                                         <para>Indicate ringing to the calling party, even if the called party isn't actually ringing. Pass no audio to the calling
306                                         party until the called channel has answered.</para>
307                                 </option>
308                                 <option name="S">
309                                         <argument name="x" required="true" />
310                                         <para>Hang up the call <replaceable>x</replaceable> seconds <emphasis>after</emphasis> the called party has
311                                         answered the call.</para>
312                                 </option>
313                                 <option name="t">
314                                         <para>Allow the called party to transfer the calling party by sending the
315                                         DTMF sequence defined in <filename>features.conf</filename>.</para>
316                                 </option>
317                                 <option name="T">
318                                         <para>Allow the calling party to transfer the called party by sending the
319                                         DTMF sequence defined in <filename>features.conf</filename>.</para>
320                                 </option>
321                                 <option name="U" argsep="^">
322                                         <argument name="x" required="true">
323                                                 <para>Name of the subroutine to execute via Gosub</para>
324                                         </argument>
325                                         <argument name="arg" multiple="true" required="false">
326                                                 <para>Arguments for the Gosub routine</para>
327                                         </argument>
328                                         <para>Execute via Gosub the routine <replaceable>x</replaceable> for the <emphasis>called</emphasis> channel before connecting
329                                         to the calling channel. Arguments can be specified to the Gosub
330                                         using <literal>^</literal> as a delimiter. The Gosub routine can set the variable
331                                         <variable>GOSUB_RESULT</variable> to specify the following actions after the Gosub returns.</para>
332                                         <variablelist>
333                                                 <variable name="GOSUB_RESULT">
334                                                         <value name="ABORT">
335                                                                 Hangup both legs of the call.
336                                                         </value>
337                                                         <value name="CONGESTION">
338                                                                 Behave as if line congestion was encountered.
339                                                         </value>
340                                                         <value name="BUSY">
341                                                                 Behave as if a busy signal was encountered.
342                                                         </value>
343                                                         <value name="CONTINUE">
344                                                                 Hangup the called party and allow the calling party
345                                                                 to continue dialplan execution at the next priority.
346                                                         </value>
347                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
348                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
349                                                                 Transfer the call to the specified priority. Optionally, an extension, or
350                                                                 extension and priority can be specified.
351                                                         </value>
352                                                 </variable>
353                                         </variablelist>
354                                         <note>
355                                                 <para>You cannot use any additional action post answer options in conjunction
356                                                 with this option. Also, pbx services are not run on the peer (called) channel,
357                                                 so you will not be able to set timeouts via the TIMEOUT() function in this routine.</para>
358                                         </note>
359                                 </option>
360                                 <option name="w">
361                                         <para>Allow the called party to enable recording of the call by sending
362                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
363                                 </option>
364                                 <option name="W">
365                                         <para>Allow the calling party to enable recording of the call by sending
366                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
367                                 </option>
368                                 <option name="x">
369                                         <para>Allow the called party to enable recording of the call by sending
370                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
371                                 </option>
372                                 <option name="X">
373                                         <para>Allow the calling party to enable recording of the call by sending
374                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
375                                 </option>
376                                 <option name="z">
377                                         <para>On a call forward, cancel any dial timeout which has been set for this call.</para>
378                                 </option>
379                                 </optionlist>
380                         </parameter>
381                         <parameter name="URL">
382                                 <para>The optional URL will be sent to the called party if the channel driver supports it.</para>
383                         </parameter>
384                 </syntax>
385                 <description>
386                         <para>This application will place calls to one or more specified channels. As soon
387                         as one of the requested channels answers, the originating channel will be
388                         answered, if it has not already been answered. These two channels will then
389                         be active in a bridged call. All other channels that were requested will then
390                         be hung up.</para>
391
392                         <para>Unless there is a timeout specified, the Dial application will wait
393                         indefinitely until one of the called channels answers, the user hangs up, or
394                         if all of the called channels are busy or unavailable. Dialplan executing will
395                         continue if no requested channels can be called, or if the timeout expires.
396                         This application will report normal termination if the originating channel
397                         hangs up, or if the call is bridged and either of the parties in the bridge
398                         ends the call.</para>
399                         <para>If the <variable>OUTBOUND_GROUP</variable> variable is set, all peer channels created by this
400                         application will be put into that group (as in Set(GROUP()=...).
401                         If the <variable>OUTBOUND_GROUP_ONCE</variable> variable is set, all peer channels created by this
402                         application will be put into that group (as in Set(GROUP()=...). Unlike OUTBOUND_GROUP,
403                         however, the variable will be unset after use.</para>
404
405                         <para>This application sets the following channel variables:</para>
406                         <variablelist>
407                                 <variable name="DIALEDTIME">
408                                         <para>This is the time from dialing a channel until when it is disconnected.</para>
409                                 </variable>
410                                 <variable name="ANSWEREDTIME">
411                                         <para>This is the amount of time for actual call.</para>
412                                 </variable>
413                                 <variable name="DIALSTATUS">
414                                         <para>This is the status of the call</para>
415                                         <value name="CHANUNAVAIL" />
416                                         <value name="CONGESTION" />
417                                         <value name="NOANSWER" />
418                                         <value name="BUSY" />
419                                         <value name="ANSWER" />
420                                         <value name="CANCEL" />
421                                         <value name="DONTCALL">
422                                                 For the Privacy and Screening Modes.
423                                                 Will be set if the called party chooses to send the calling party to the 'Go Away' script.
424                                         </value>
425                                         <value name="TORTURE">
426                                                 For the Privacy and Screening Modes.
427                                                 Will be set if the called party chooses to send the calling party to the 'torture' script.
428                                         </value>
429                                         <value name="INVALIDARGS" />
430                                 </variable>
431                         </variablelist>
432                 </description>
433         </application>
434         <application name="RetryDial" language="en_US">
435                 <synopsis>
436                         Place a call, retrying on failure allowing an optional exit extension.
437                 </synopsis>
438                 <syntax>
439                         <parameter name="announce" required="true">
440                                 <para>Filename of sound that will be played when no channel can be reached</para>
441                         </parameter>
442                         <parameter name="sleep" required="true">
443                                 <para>Number of seconds to wait after a dial attempt failed before a new attempt is made</para>
444                         </parameter>
445                         <parameter name="retries" required="true">
446                                 <para>Number of retries</para>
447                                 <para>When this is reached flow will continue at the next priority in the dialplan</para>
448                         </parameter>
449                         <parameter name="dialargs" required="true">
450                                 <para>Same format as arguments provided to the Dial application</para>
451                         </parameter>
452                 </syntax>
453                 <description>
454                         <para>This application will attempt to place a call using the normal Dial application.
455                         If no channel can be reached, the <replaceable>announce</replaceable> file will be played.
456                         Then, it will wait <replaceable>sleep</replaceable> number of seconds before retrying the call.
457                         After <replaceable>retries</replaceable> number of attempts, the calling channel will continue at the next priority in the dialplan.
458                         If the <replaceable>retries</replaceable> setting is set to 0, this application will retry endlessly.
459                         While waiting to retry a call, a 1 digit extension may be dialed. If that
460                         extension exists in either the context defined in <variable>EXITCONTEXT</variable> or the current
461                         one, The call will jump to that extension immediately.
462                         The <replaceable>dialargs</replaceable> are specified in the same format that arguments are provided
463                         to the Dial application.</para>
464                 </description>
465         </application>
466  ***/
467
468 static char *app = "Dial";
469 static char *rapp = "RetryDial";
470
471 enum {
472         OPT_ANNOUNCE =          (1 << 0),
473         OPT_RESETCDR =          (1 << 1),
474         OPT_DTMF_EXIT =         (1 << 2),
475         OPT_SENDDTMF =          (1 << 3),
476         OPT_FORCECLID =         (1 << 4),
477         OPT_GO_ON =             (1 << 5),
478         OPT_CALLEE_HANGUP =     (1 << 6),
479         OPT_CALLER_HANGUP =     (1 << 7),
480         OPT_ORIGINAL_CLID =     (1 << 8),
481         OPT_DURATION_LIMIT =    (1 << 9),
482         OPT_MUSICBACK =         (1 << 10),
483         OPT_CALLEE_MACRO =      (1 << 11),
484         OPT_SCREEN_NOINTRO =    (1 << 12),
485         OPT_SCREEN_NOCALLERID = (1 << 13),
486         OPT_IGNORE_CONNECTEDLINE = (1 << 14),
487         OPT_SCREENING =         (1 << 15),
488         OPT_PRIVACY =           (1 << 16),
489         OPT_RINGBACK =          (1 << 17),
490         OPT_DURATION_STOP =     (1 << 18),
491         OPT_CALLEE_TRANSFER =   (1 << 19),
492         OPT_CALLER_TRANSFER =   (1 << 20),
493         OPT_CALLEE_MONITOR =    (1 << 21),
494         OPT_CALLER_MONITOR =    (1 << 22),
495         OPT_GOTO =              (1 << 23),
496         OPT_OPERMODE =          (1 << 24),
497         OPT_CALLEE_PARK =       (1 << 25),
498         OPT_CALLER_PARK =       (1 << 26),
499         OPT_IGNORE_FORWARDING = (1 << 27),
500         OPT_CALLEE_GOSUB =      (1 << 28),
501         OPT_CALLEE_MIXMONITOR = (1 << 29),
502         OPT_CALLER_MIXMONITOR = (1 << 30),
503 };
504
505 #define DIAL_STILLGOING      (1 << 31)
506 #define DIAL_NOFORWARDHTML   ((uint64_t)1 << 32) /* flags are now 64 bits, so keep it up! */
507 #define DIAL_NOCONNECTEDLINE ((uint64_t)1 << 33)
508 #define OPT_CANCEL_ELSEWHERE ((uint64_t)1 << 34)
509 #define OPT_PEER_H           ((uint64_t)1 << 35)
510 #define OPT_CALLEE_GO_ON     ((uint64_t)1 << 36)
511 #define OPT_CANCEL_TIMEOUT   ((uint64_t)1 << 37)
512
513 enum {
514         OPT_ARG_ANNOUNCE = 0,
515         OPT_ARG_SENDDTMF,
516         OPT_ARG_GOTO,
517         OPT_ARG_DURATION_LIMIT,
518         OPT_ARG_MUSICBACK,
519         OPT_ARG_CALLEE_MACRO,
520         OPT_ARG_CALLEE_GOSUB,
521         OPT_ARG_CALLEE_GO_ON,
522         OPT_ARG_PRIVACY,
523         OPT_ARG_DURATION_STOP,
524         OPT_ARG_OPERMODE,
525         /* note: this entry _MUST_ be the last one in the enum */
526         OPT_ARG_ARRAY_SIZE,
527 };
528
529 AST_APP_OPTIONS(dial_exec_options, BEGIN_OPTIONS
530         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
531         AST_APP_OPTION('C', OPT_RESETCDR),
532         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
533         AST_APP_OPTION('d', OPT_DTMF_EXIT),
534         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
535         AST_APP_OPTION('e', OPT_PEER_H),
536         AST_APP_OPTION('f', OPT_FORCECLID),
537         AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
538         AST_APP_OPTION('g', OPT_GO_ON),
539         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
540         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
541         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
542         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
543         AST_APP_OPTION('I', OPT_IGNORE_CONNECTEDLINE),
544         AST_APP_OPTION('k', OPT_CALLEE_PARK),
545         AST_APP_OPTION('K', OPT_CALLER_PARK),
546         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
547         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
548         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
549         AST_APP_OPTION('n', OPT_SCREEN_NOINTRO),
550         AST_APP_OPTION('N', OPT_SCREEN_NOCALLERID),
551         AST_APP_OPTION('o', OPT_ORIGINAL_CLID),
552         AST_APP_OPTION_ARG('O', OPT_OPERMODE, OPT_ARG_OPERMODE),
553         AST_APP_OPTION('p', OPT_SCREENING),
554         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
555         AST_APP_OPTION('r', OPT_RINGBACK),
556         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
557         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
558         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
559         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
560         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
561         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
562         AST_APP_OPTION('x', OPT_CALLEE_MIXMONITOR),
563         AST_APP_OPTION('X', OPT_CALLER_MIXMONITOR),
564         AST_APP_OPTION('z', OPT_CANCEL_TIMEOUT),
565 END_OPTIONS );
566
567 #define CAN_EARLY_BRIDGE(flags,chan,peer) (!ast_test_flag64(flags, OPT_CALLEE_HANGUP | \
568         OPT_CALLER_HANGUP | OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER | \
569         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR | OPT_CALLEE_PARK | OPT_CALLER_PARK) && \
570         !chan->audiohooks && !peer->audiohooks)
571
572 /*
573  * The list of active channels
574  */
575 struct chanlist {
576         struct chanlist *next;
577         struct ast_channel *chan;
578         uint64_t flags;
579         struct ast_party_connected_line connected;
580 };
581
582 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode);
583
584 static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception, int answered_elsewhere)
585 {
586         /* Hang up a tree of stuff */
587         struct chanlist *oo;
588         while (outgoing) {
589                 /* Hangup any existing lines we have open */
590                 if (outgoing->chan && (outgoing->chan != exception)) {
591                         if (answered_elsewhere) {
592                                 /* The flag is used for local channel inheritance and stuff */
593                                 ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
594                                 /* This is for the channel drivers */
595                                 outgoing->chan->hangupcause = AST_CAUSE_ANSWERED_ELSEWHERE;
596                         }
597                         ast_party_connected_line_free(&outgoing->connected);
598                         ast_hangup(outgoing->chan);
599                 }
600                 oo = outgoing;
601                 outgoing = outgoing->next;
602                 ast_free(oo);
603         }
604 }
605
606 #define AST_MAX_WATCHERS 256
607
608 /*
609  * argument to handle_cause() and other functions.
610  */
611 struct cause_args {
612         struct ast_channel *chan;
613         int busy;
614         int congestion;
615         int nochan;
616 };
617
618 static void handle_cause(int cause, struct cause_args *num)
619 {
620         struct ast_cdr *cdr = num->chan->cdr;
621
622         switch(cause) {
623         case AST_CAUSE_BUSY:
624                 if (cdr)
625                         ast_cdr_busy(cdr);
626                 num->busy++;
627                 break;
628
629         case AST_CAUSE_CONGESTION:
630                 if (cdr)
631                         ast_cdr_failed(cdr);
632                 num->congestion++;
633                 break;
634
635         case AST_CAUSE_NO_ROUTE_DESTINATION:
636         case AST_CAUSE_UNREGISTERED:
637                 if (cdr)
638                         ast_cdr_failed(cdr);
639                 num->nochan++;
640                 break;
641
642         case AST_CAUSE_NO_ANSWER:
643                 if (cdr) {
644                         ast_cdr_noanswer(cdr);
645                 }
646                 break;
647         case AST_CAUSE_NORMAL_CLEARING:
648                 break;
649
650         default:
651                 num->nochan++;
652                 break;
653         }
654 }
655
656 /* free the buffer if allocated, and set the pointer to the second arg */
657 #define S_REPLACE(s, new_val)           \
658         do {                            \
659                 if (s)                  \
660                         ast_free(s);    \
661                 s = (new_val);          \
662         } while (0)
663
664 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
665 {
666         char rexten[2] = { exten, '\0' };
667
668         if (context) {
669                 if (!ast_goto_if_exists(chan, context, rexten, pri))
670                         return 1;
671         } else {
672                 if (!ast_goto_if_exists(chan, chan->context, rexten, pri))
673                         return 1;
674                 else if (!ast_strlen_zero(chan->macrocontext)) {
675                         if (!ast_goto_if_exists(chan, chan->macrocontext, rexten, pri))
676                                 return 1;
677                 }
678         }
679         return 0;
680 }
681
682 /* do not call with chan lock held */
683 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
684 {
685         const char *context;
686         const char *exten;
687
688         ast_channel_lock(chan);
689         context = ast_strdupa(S_OR(chan->macrocontext, chan->context));
690         exten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
691         ast_channel_unlock(chan);
692
693         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
694 }
695
696 static void senddialevent(struct ast_channel *src, struct ast_channel *dst, const char *dialstring)
697 {
698         manager_event(EVENT_FLAG_CALL, "Dial",
699                 "SubEvent: Begin\r\n"
700                 "Channel: %s\r\n"
701                 "Destination: %s\r\n"
702                 "CallerIDNum: %s\r\n"
703                 "CallerIDName: %s\r\n"
704                 "UniqueID: %s\r\n"
705                 "DestUniqueID: %s\r\n"
706                 "Dialstring: %s\r\n",
707                 src->name, dst->name, S_OR(src->cid.cid_num, "<unknown>"),
708                 S_OR(src->cid.cid_name, "<unknown>"), src->uniqueid,
709                 dst->uniqueid, dialstring ? dialstring : "");
710 }
711
712 static void senddialendevent(const struct ast_channel *src, const char *dialstatus)
713 {
714         manager_event(EVENT_FLAG_CALL, "Dial",
715                 "SubEvent: End\r\n"
716                 "Channel: %s\r\n"
717                 "UniqueID: %s\r\n"
718                 "DialStatus: %s\r\n",
719                 src->name, src->uniqueid, dialstatus);
720 }
721
722 /*!
723  * helper function for wait_for_answer()
724  *
725  * XXX this code is highly suspicious, as it essentially overwrites
726  * the outgoing channel without properly deleting it.
727  */
728 static void do_forward(struct chanlist *o,
729         struct cause_args *num, struct ast_flags64 *peerflags, int single, int *to)
730 {
731         char tmpchan[256];
732         struct ast_channel *original = o->chan;
733         struct ast_channel *c = o->chan; /* the winner */
734         struct ast_channel *in = num->chan; /* the input channel */
735         struct ast_party_redirecting *apr = &o->chan->redirecting;
736         struct ast_party_connected_line *apc = &o->chan->connected;
737         char *stuff;
738         char *tech;
739         int cause;
740
741         ast_copy_string(tmpchan, c->call_forward, sizeof(tmpchan));
742         if ((stuff = strchr(tmpchan, '/'))) {
743                 *stuff++ = '\0';
744                 tech = tmpchan;
745         } else {
746                 const char *forward_context;
747                 ast_channel_lock(c);
748                 forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
749                 if (ast_strlen_zero(forward_context)) {
750                         forward_context = NULL;
751                 }
752                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", c->call_forward, forward_context ? forward_context : c->context);
753                 ast_channel_unlock(c);
754                 stuff = tmpchan;
755                 tech = "Local";
756         }
757         /* Before processing channel, go ahead and check for forwarding */
758         ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", in->name, tech, stuff, c->name);
759         /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
760         if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
761                 ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", in->name, tech, stuff);
762                 c = o->chan = NULL;
763                 cause = AST_CAUSE_BUSY;
764         } else {
765                 /* Setup parameters */
766                 c = o->chan = ast_request(tech, in->nativeformats, stuff, &cause);
767                 if (c) {
768                         if (single)
769                                 ast_channel_make_compatible(o->chan, in);
770                         ast_channel_inherit_variables(in, o->chan);
771                         ast_channel_datastore_inherit(in, o->chan);
772                 } else
773                         ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
774         }
775         if (!c) {
776                 ast_clear_flag64(o, DIAL_STILLGOING);
777                 handle_cause(cause, num);
778                 ast_hangup(original);
779         } else {
780                 if (single) {
781                         ast_rtp_instance_early_bridge_make_compatible(c, in);
782                 }
783
784                 c->cdrflags = in->cdrflags;
785
786                 ast_channel_set_redirecting(c, apr);
787                 ast_channel_lock(c);
788                 while (ast_channel_trylock(in)) {
789                         CHANNEL_DEADLOCK_AVOIDANCE(c);
790                 }
791                 S_REPLACE(c->cid.cid_rdnis, ast_strdup(S_OR(original->cid.cid_rdnis, S_OR(in->macroexten, in->exten))));
792
793                 c->cid.cid_tns = in->cid.cid_tns;
794
795                 if (ast_test_flag64(o, OPT_FORCECLID)) {
796                         S_REPLACE(c->cid.cid_num, ast_strdupa(S_OR(in->macroexten, in->exten)));
797                         S_REPLACE(c->cid.cid_name, NULL);
798                         ast_string_field_set(c, accountcode, c->accountcode);
799                 } else {
800                         ast_party_caller_copy(&c->cid, &in->cid);
801                         ast_string_field_set(c, accountcode, in->accountcode);
802                 }
803                 ast_party_connected_line_copy(&c->connected, apc);
804
805                 S_REPLACE(in->cid.cid_rdnis, ast_strdup(c->cid.cid_rdnis));
806                 ast_channel_update_redirecting(in, apr);
807
808                 ast_clear_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE);
809                 if (ast_test_flag64(peerflags, OPT_CANCEL_TIMEOUT)) {
810                         *to = -1;
811                 }
812
813                 ast_channel_unlock(in);
814                 ast_channel_unlock(c);
815
816                 if (ast_call(c, tmpchan, 0)) {
817                         ast_log(LOG_NOTICE, "Failed to dial on local channel for call forward to '%s'\n", tmpchan);
818                         ast_clear_flag64(o, DIAL_STILLGOING);
819                         ast_hangup(original);
820                         ast_hangup(c);
821                         c = o->chan = NULL;
822                         num->nochan++;
823                 } else {
824                         ast_channel_lock(c);
825                         while (ast_channel_trylock(in)) {
826                                 CHANNEL_DEADLOCK_AVOIDANCE(c);
827                         }
828                         senddialevent(in, c, stuff);
829                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
830                                 char cidname[AST_MAX_EXTENSION] = "";
831                                 const char *tmpexten;
832                                 tmpexten = ast_strdupa(S_OR(in->macroexten, in->exten));
833                                 ast_channel_unlock(in);
834                                 ast_channel_unlock(c);
835                                 ast_set_callerid(c, tmpexten, get_cid_name(cidname, sizeof(cidname), in), NULL);
836                         } else {
837                                 ast_channel_unlock(in);
838                                 ast_channel_unlock(c);
839                         }
840                         /* Hangup the original channel now, in case we needed it */
841                         ast_hangup(original);
842                 }
843                 if (single) {
844                         ast_indicate(in, -1);
845                 }
846         }
847 }
848
849 /* argument used for some functions. */
850 struct privacy_args {
851         int sentringing;
852         int privdb_val;
853         char privcid[256];
854         char privintro[1024];
855         char status[256];
856 };
857
858 static struct ast_channel *wait_for_answer(struct ast_channel *in,
859         struct chanlist *outgoing, int *to, struct ast_flags64 *peerflags,
860         struct privacy_args *pa,
861         const struct cause_args *num_in, int *result, char *dtmf_progress)
862 {
863         struct cause_args num = *num_in;
864         int prestart = num.busy + num.congestion + num.nochan;
865         int orig = *to;
866         struct ast_channel *peer = NULL;
867         /* single is set if only one destination is enabled */
868         int single = outgoing && !outgoing->next;
869 #ifdef HAVE_EPOLL
870         struct chanlist *epollo;
871 #endif
872         struct ast_party_connected_line connected_caller;
873         struct ast_str *featurecode = ast_str_alloca(FEATURE_MAX_LEN + 1);
874
875         ast_party_connected_line_init(&connected_caller);
876         if (single) {
877                 /* Turn off hold music, etc */
878                 if (!ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK))
879                         ast_deactivate_generator(in);
880
881                 /* If we are calling a single channel, make them compatible for in-band tone purpose */
882                 ast_channel_make_compatible(outgoing->chan, in);
883
884                 if (!ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE) && !ast_test_flag64(outgoing, DIAL_NOCONNECTEDLINE)) {
885                         ast_channel_lock(outgoing->chan);
886                         ast_connected_line_copy_from_caller(&connected_caller, &outgoing->chan->cid);
887                         ast_channel_unlock(outgoing->chan);
888                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
889                         ast_channel_update_connected_line(in, &connected_caller);
890                         ast_party_connected_line_free(&connected_caller);
891                 }
892         }
893
894 #ifdef HAVE_EPOLL
895         for (epollo = outgoing; epollo; epollo = epollo->next)
896                 ast_poll_channel_add(in, epollo->chan);
897 #endif
898
899         while (*to && !peer) {
900                 struct chanlist *o;
901                 int pos = 0; /* how many channels do we handle */
902                 int numlines = prestart;
903                 struct ast_channel *winner;
904                 struct ast_channel *watchers[AST_MAX_WATCHERS];
905
906                 watchers[pos++] = in;
907                 for (o = outgoing; o; o = o->next) {
908                         /* Keep track of important channels */
909                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
910                                 watchers[pos++] = o->chan;
911                         numlines++;
912                 }
913                 if (pos == 1) { /* only the input channel is available */
914                         if (numlines == (num.busy + num.congestion + num.nochan)) {
915                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
916                                 if (num.busy)
917                                         strcpy(pa->status, "BUSY");
918                                 else if (num.congestion)
919                                         strcpy(pa->status, "CONGESTION");
920                                 else if (num.nochan)
921                                         strcpy(pa->status, "CHANUNAVAIL");
922                         } else {
923                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
924                         }
925                         *to = 0;
926                         return NULL;
927                 }
928                 winner = ast_waitfor_n(watchers, pos, to);
929                 for (o = outgoing; o; o = o->next) {
930                         struct ast_frame *f;
931                         struct ast_channel *c = o->chan;
932
933                         if (c == NULL)
934                                 continue;
935                         if (ast_test_flag64(o, DIAL_STILLGOING) && c->_state == AST_STATE_UP) {
936                                 if (!peer) {
937                                         ast_verb(3, "%s answered %s\n", c->name, in->name);
938                                         if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
939                                                 if (o->connected.id.number) {
940                                                         ast_channel_update_connected_line(in, &o->connected);
941                                                 } else if (!ast_test_flag64(o, DIAL_NOCONNECTEDLINE)) {
942                                                         ast_channel_lock(c);
943                                                         ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
944                                                         ast_channel_unlock(c);
945                                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
946                                                         ast_channel_update_connected_line(in, &connected_caller);
947                                                         ast_party_connected_line_free(&connected_caller);
948                                                 }
949                                         }
950                                         peer = c;
951                                         ast_copy_flags64(peerflags, o,
952                                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
953                                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
954                                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
955                                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
956                                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
957                                                 DIAL_NOFORWARDHTML);
958                                         ast_string_field_set(c, dialcontext, "");
959                                         ast_copy_string(c->exten, "", sizeof(c->exten));
960                                 }
961                                 continue;
962                         }
963                         if (c != winner)
964                                 continue;
965                         /* here, o->chan == c == winner */
966                         if (!ast_strlen_zero(c->call_forward)) {
967                                 do_forward(o, &num, peerflags, single, to);
968                                 continue;
969                         }
970                         f = ast_read(winner);
971                         if (!f) {
972                                 in->hangupcause = c->hangupcause;
973 #ifdef HAVE_EPOLL
974                                 ast_poll_channel_del(in, c);
975 #endif
976                                 ast_hangup(c);
977                                 c = o->chan = NULL;
978                                 ast_clear_flag64(o, DIAL_STILLGOING);
979                                 handle_cause(in->hangupcause, &num);
980                                 continue;
981                         }
982                         if (f->frametype == AST_FRAME_CONTROL) {
983                                 switch(f->subclass) {
984                                 case AST_CONTROL_ANSWER:
985                                         /* This is our guy if someone answered. */
986                                         if (!peer) {
987                                                 ast_verb(3, "%s answered %s\n", c->name, in->name);
988                                                 if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
989                                                         if (o->connected.id.number) {
990                                                                 ast_channel_update_connected_line(in, &o->connected);
991                                                         } else if (!ast_test_flag64(o, DIAL_NOCONNECTEDLINE)) {
992                                                                 ast_channel_lock(c);
993                                                                 ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
994                                                                 ast_channel_unlock(c);
995                                                                 connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
996                                                                 ast_channel_update_connected_line(in, &connected_caller);
997                                                                 ast_party_connected_line_free(&connected_caller);
998                                                         }
999                                                 }
1000                                                 peer = c;
1001                                                 if (peer->cdr) {
1002                                                         peer->cdr->answer = ast_tvnow();
1003                                                         peer->cdr->disposition = AST_CDR_ANSWERED;
1004                                                 }
1005                                                 ast_copy_flags64(peerflags, o,
1006                                                         OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1007                                                         OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1008                                                         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1009                                                         OPT_CALLEE_PARK | OPT_CALLER_PARK |
1010                                                         OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1011                                                         DIAL_NOFORWARDHTML);
1012                                                 ast_string_field_set(c, dialcontext, "");
1013                                                 ast_copy_string(c->exten, "", sizeof(c->exten));
1014                                                 if (CAN_EARLY_BRIDGE(peerflags, in, peer))
1015                                                         /* Setup early bridge if appropriate */
1016                                                         ast_channel_early_bridge(in, peer);
1017                                         }
1018                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
1019                                         in->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1020                                         c->hangupcause = AST_CAUSE_NORMAL_CLEARING;
1021                                         break;
1022                                 case AST_CONTROL_BUSY:
1023                                         ast_verb(3, "%s is busy\n", c->name);
1024                                         in->hangupcause = c->hangupcause;
1025                                         ast_hangup(c);
1026                                         c = o->chan = NULL;
1027                                         ast_clear_flag64(o, DIAL_STILLGOING);
1028                                         handle_cause(AST_CAUSE_BUSY, &num);
1029                                         break;
1030                                 case AST_CONTROL_CONGESTION:
1031                                         ast_verb(3, "%s is circuit-busy\n", c->name);
1032                                         in->hangupcause = c->hangupcause;
1033                                         ast_hangup(c);
1034                                         c = o->chan = NULL;
1035                                         ast_clear_flag64(o, DIAL_STILLGOING);
1036                                         handle_cause(AST_CAUSE_CONGESTION, &num);
1037                                         break;
1038                                 case AST_CONTROL_RINGING:
1039                                         ast_verb(3, "%s is ringing\n", c->name);
1040                                         /* Setup early media if appropriate */
1041                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1042                                                 ast_channel_early_bridge(in, c);
1043                                         if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK)) {
1044                                                 ast_indicate(in, AST_CONTROL_RINGING);
1045                                                 pa->sentringing++;
1046                                         }
1047                                         break;
1048                                 case AST_CONTROL_PROGRESS:
1049                                         ast_verb(3, "%s is making progress passing it to %s\n", c->name, in->name);
1050                                         /* Setup early media if appropriate */
1051                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1052                                                 ast_channel_early_bridge(in, c);
1053                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1054                                                 ast_indicate(in, AST_CONTROL_PROGRESS);
1055                                                 if(!ast_strlen_zero(dtmf_progress)) {
1056                                                         ast_verb(3, "Sending DTMF '%s' to the called party as result of receiving a PROGRESS message.\n", dtmf_progress);
1057                                                         ast_dtmf_stream(c, in, dtmf_progress, 250, 0);
1058                                                 }
1059                                         break;
1060                                 case AST_CONTROL_VIDUPDATE:
1061                                         ast_verb(3, "%s requested a video update, passing it to %s\n", c->name, in->name);
1062                                         ast_indicate(in, AST_CONTROL_VIDUPDATE);
1063                                         break;
1064                                 case AST_CONTROL_SRCUPDATE:
1065                                         ast_verb(3, "%s requested a source update, passing it to %s\n", c->name, in->name);
1066                                         ast_indicate(in, AST_CONTROL_SRCUPDATE);
1067                                         break;
1068                                 case AST_CONTROL_CONNECTED_LINE:
1069                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1070                                                 ast_verb(3, "Connected line update to %s prevented.\n", in->name);
1071                                         } else if (!single) {
1072                                                 struct ast_party_connected_line connected;
1073                                                 ast_verb(3, "%s connected line has changed. Saving it until answer for %s\n", c->name, in->name);
1074                                                 ast_party_connected_line_set_init(&connected, &o->connected);
1075                                                 ast_connected_line_parse_data(f->data.ptr, f->datalen, &connected);
1076                                                 ast_party_connected_line_set(&o->connected, &connected);
1077                                                 ast_party_connected_line_free(&connected);
1078                                         } else {
1079                                                 ast_verb(3, "%s connected line has changed, passing it to %s\n", c->name, in->name);
1080                                                 ast_indicate_data(in, AST_CONTROL_CONNECTED_LINE, f->data.ptr, f->datalen);
1081                                         }
1082                                         break;
1083                                 case AST_CONTROL_REDIRECTING:
1084                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1085                                                 ast_verb(3, "Redirecting update to %s prevented.\n", in->name);
1086                                         } else {
1087                                                 ast_verb(3, "%s redirecting info has changed, passing it to %s\n", c->name, in->name);
1088                                                 ast_indicate_data(in, AST_CONTROL_REDIRECTING, f->data.ptr, f->datalen);
1089                                         }
1090                                         break;
1091                                 case AST_CONTROL_PROCEEDING:
1092                                         ast_verb(3, "%s is proceeding passing it to %s\n", c->name, in->name);
1093                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1094                                                 ast_channel_early_bridge(in, c);
1095                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1096                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
1097                                         break;
1098                                 case AST_CONTROL_HOLD:
1099                                         ast_verb(3, "Call on %s placed on hold\n", c->name);
1100                                         ast_indicate(in, AST_CONTROL_HOLD);
1101                                         break;
1102                                 case AST_CONTROL_UNHOLD:
1103                                         ast_verb(3, "Call on %s left from hold\n", c->name);
1104                                         ast_indicate(in, AST_CONTROL_UNHOLD);
1105                                         break;
1106                                 case AST_CONTROL_OFFHOOK:
1107                                 case AST_CONTROL_FLASH:
1108                                         /* Ignore going off hook and flash */
1109                                         break;
1110                                 case -1:
1111                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK | OPT_MUSICBACK)) {
1112                                                 ast_verb(3, "%s stopped sounds\n", c->name);
1113                                                 ast_indicate(in, -1);
1114                                                 pa->sentringing = 0;
1115                                         }
1116                                         break;
1117                                 default:
1118                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass);
1119                                 }
1120                         } else if (single) {
1121                                 switch (f->frametype) {
1122                                         case AST_FRAME_VOICE:
1123                                         case AST_FRAME_IMAGE:
1124                                         case AST_FRAME_TEXT:
1125                                                 if (ast_write(in, f)) {
1126                                                         ast_log(LOG_WARNING, "Unable to write frame\n");
1127                                                 }
1128                                                 break;
1129                                         case AST_FRAME_HTML:
1130                                                 if (!ast_test_flag64(outgoing, DIAL_NOFORWARDHTML) && ast_channel_sendhtml(in, f->subclass, f->data.ptr, f->datalen) == -1) {
1131                                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1132                                                 }
1133                                                 break;
1134                                         default:
1135                                                 break;
1136                                 }
1137                         }
1138                         ast_frfree(f);
1139                 } /* end for */
1140                 if (winner == in) {
1141                         struct ast_frame *f = ast_read(in);
1142 #if 0
1143                         if (f && (f->frametype != AST_FRAME_VOICE))
1144                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
1145                         else if (!f || (f->frametype != AST_FRAME_VOICE))
1146                                 printf("Hangup received on %s\n", in->name);
1147 #endif
1148                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP))) {
1149                                 /* Got hung up */
1150                                 *to = -1;
1151                                 strcpy(pa->status, "CANCEL");
1152                                 ast_cdr_noanswer(in->cdr);
1153                                 if (f) {
1154                                         if (f->data.uint32) {
1155                                                 in->hangupcause = f->data.uint32;
1156                                         }
1157                                         ast_frfree(f);
1158                                 }
1159                                 return NULL;
1160                         }
1161
1162                         /* now f is guaranteed non-NULL */
1163                         if (f->frametype == AST_FRAME_DTMF) {
1164                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
1165                                         const char *context;
1166                                         ast_channel_lock(in);
1167                                         context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
1168                                         if (onedigit_goto(in, context, (char) f->subclass, 1)) {
1169                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass);
1170                                                 *to = 0;
1171                                                 ast_cdr_noanswer(in->cdr);
1172                                                 *result = f->subclass;
1173                                                 strcpy(pa->status, "CANCEL");
1174                                                 ast_frfree(f);
1175                                                 ast_channel_unlock(in);
1176                                                 return NULL;
1177                                         }
1178                                         ast_channel_unlock(in);
1179                                 }
1180
1181                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) &&
1182                                         detect_disconnect(in, f->subclass, featurecode)) {
1183                                         ast_verb(3, "User requested call disconnect.\n");
1184                                         *to = 0;
1185                                         strcpy(pa->status, "CANCEL");
1186                                         ast_cdr_noanswer(in->cdr);
1187                                         ast_frfree(f);
1188                                         return NULL;
1189                                 }
1190                         }
1191
1192                         /* Forward HTML stuff */
1193                         if (single && (f->frametype == AST_FRAME_HTML) && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML))
1194                                 if (ast_channel_sendhtml(outgoing->chan, f->subclass, f->data.ptr, f->datalen) == -1)
1195                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1196
1197                         if (single && ((f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_DTMF_BEGIN) || (f->frametype == AST_FRAME_DTMF_END)))  {
1198                                 if (ast_write(outgoing->chan, f))
1199                                         ast_log(LOG_WARNING, "Unable to forward voice or dtmf\n");
1200                         }
1201                         if (single && (f->frametype == AST_FRAME_CONTROL) &&
1202                                 ((f->subclass == AST_CONTROL_HOLD) ||
1203                                 (f->subclass == AST_CONTROL_UNHOLD) ||
1204                                 (f->subclass == AST_CONTROL_VIDUPDATE) ||
1205                                 (f->subclass == AST_CONTROL_SRCUPDATE) ||
1206                                 (f->subclass == AST_CONTROL_CONNECTED_LINE) ||
1207                                 (f->subclass == AST_CONTROL_REDIRECTING))) {
1208                                 ast_verb(3, "%s requested special control %d, passing it to %s\n", in->name, f->subclass, outgoing->chan->name);
1209                                 ast_indicate_data(outgoing->chan, f->subclass, f->data.ptr, f->datalen);
1210                         }
1211                         ast_frfree(f);
1212                 }
1213                 if (!*to)
1214                         ast_verb(3, "Nobody picked up in %d ms\n", orig);
1215                 if (!*to || ast_check_hangup(in))
1216                         ast_cdr_noanswer(in->cdr);
1217         }
1218
1219 #ifdef HAVE_EPOLL
1220         for (epollo = outgoing; epollo; epollo = epollo->next) {
1221                 if (epollo->chan)
1222                         ast_poll_channel_del(in, epollo->chan);
1223         }
1224 #endif
1225
1226         return peer;
1227 }
1228
1229 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode)
1230 {
1231         struct ast_flags features = { AST_FEATURE_DISCONNECT }; /* only concerned with disconnect feature */
1232         struct ast_call_feature feature = { 0, };
1233         int res;
1234
1235         ast_str_append(&featurecode, 1, "%c", code);
1236
1237         res = ast_feature_detect(chan, &features, ast_str_buffer(featurecode), &feature);
1238
1239         if (res != AST_FEATURE_RETURN_STOREDIGITS) {
1240                 ast_str_reset(featurecode);
1241         }
1242         if (feature.feature_mask & AST_FEATURE_DISCONNECT) {
1243                 return 1;
1244         }
1245
1246         return 0;
1247 }
1248
1249 static void replace_macro_delimiter(char *s)
1250 {
1251         for (; *s; s++)
1252                 if (*s == '^')
1253                         *s = ',';
1254 }
1255
1256 /* returns true if there is a valid privacy reply */
1257 static int valid_priv_reply(struct ast_flags64 *opts, int res)
1258 {
1259         if (res < '1')
1260                 return 0;
1261         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
1262                 return 1;
1263         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
1264                 return 1;
1265         return 0;
1266 }
1267
1268 static int do_timelimit(struct ast_channel *chan, struct ast_bridge_config *config,
1269         char *parse, struct timeval *calldurationlimit)
1270 {
1271         char *stringp = ast_strdupa(parse);
1272         char *limit_str, *warning_str, *warnfreq_str;
1273         const char *var;
1274         int play_to_caller = 0, play_to_callee = 0;
1275         int delta;
1276
1277         limit_str = strsep(&stringp, ":");
1278         warning_str = strsep(&stringp, ":");
1279         warnfreq_str = strsep(&stringp, ":");
1280
1281         config->timelimit = atol(limit_str);
1282         if (warning_str)
1283                 config->play_warning = atol(warning_str);
1284         if (warnfreq_str)
1285                 config->warning_freq = atol(warnfreq_str);
1286
1287         if (!config->timelimit) {
1288                 ast_log(LOG_WARNING, "Dial does not accept L(%s), hanging up.\n", limit_str);
1289                 config->timelimit = config->play_warning = config->warning_freq = 0;
1290                 config->warning_sound = NULL;
1291                 return -1; /* error */
1292         } else if ( (delta = config->play_warning - config->timelimit) > 0) {
1293                 int w = config->warning_freq;
1294
1295                 /* If the first warning is requested _after_ the entire call would end,
1296                    and no warning frequency is requested, then turn off the warning. If
1297                    a warning frequency is requested, reduce the 'first warning' time by
1298                    that frequency until it falls within the call's total time limit.
1299                    Graphically:
1300                                   timelim->|    delta        |<-playwarning
1301                         0__________________|_________________|
1302                                          | w  |    |    |    |
1303
1304                    so the number of intervals to cut is 1+(delta-1)/w
1305                 */
1306
1307                 if (w == 0) {
1308                         config->play_warning = 0;
1309                 } else {
1310                         config->play_warning -= w * ( 1 + (delta-1)/w );
1311                         if (config->play_warning < 1)
1312                                 config->play_warning = config->warning_freq = 0;
1313                 }
1314         }
1315         
1316         ast_channel_lock(chan);
1317
1318         var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLER");
1319
1320         play_to_caller = var ? ast_true(var) : 1;
1321
1322         var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLEE");
1323         play_to_callee = var ? ast_true(var) : 0;
1324
1325         if (!play_to_caller && !play_to_callee)
1326                 play_to_caller = 1;
1327
1328         var = pbx_builtin_getvar_helper(chan, "LIMIT_WARNING_FILE");
1329         config->warning_sound = !ast_strlen_zero(var) ? ast_strdup(var) : ast_strdup("timeleft");
1330
1331         /* The code looking at config wants a NULL, not just "", to decide
1332          * that the message should not be played, so we replace "" with NULL.
1333          * Note, pbx_builtin_getvar_helper _can_ return NULL if the variable is
1334          * not found.
1335          */
1336
1337         var = pbx_builtin_getvar_helper(chan, "LIMIT_TIMEOUT_FILE");
1338         config->end_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
1339
1340         var = pbx_builtin_getvar_helper(chan, "LIMIT_CONNECT_FILE");
1341         config->start_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
1342
1343         ast_channel_unlock(chan);
1344
1345         /* undo effect of S(x) in case they are both used */
1346         calldurationlimit->tv_sec = 0;
1347         calldurationlimit->tv_usec = 0;
1348
1349         /* more efficient to do it like S(x) does since no advanced opts */
1350         if (!config->play_warning && !config->start_sound && !config->end_sound && config->timelimit) {
1351                 calldurationlimit->tv_sec = config->timelimit / 1000;
1352                 calldurationlimit->tv_usec = (config->timelimit % 1000) * 1000;
1353                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n",
1354                         calldurationlimit->tv_sec + calldurationlimit->tv_usec / 1000000.0);
1355                 config->timelimit = play_to_caller = play_to_callee =
1356                 config->play_warning = config->warning_freq = 0;
1357         } else {
1358                 ast_verb(3, "Limit Data for this call:\n");
1359                 ast_verb(4, "timelimit      = %ld\n", config->timelimit);
1360                 ast_verb(4, "play_warning   = %ld\n", config->play_warning);
1361                 ast_verb(4, "play_to_caller = %s\n", play_to_caller ? "yes" : "no");
1362                 ast_verb(4, "play_to_callee = %s\n", play_to_callee ? "yes" : "no");
1363                 ast_verb(4, "warning_freq   = %ld\n", config->warning_freq);
1364                 ast_verb(4, "start_sound    = %s\n", S_OR(config->start_sound, ""));
1365                 ast_verb(4, "warning_sound  = %s\n", config->warning_sound);
1366                 ast_verb(4, "end_sound      = %s\n", S_OR(config->end_sound, ""));
1367         }
1368         if (play_to_caller)
1369                 ast_set_flag(&(config->features_caller), AST_FEATURE_PLAY_WARNING);
1370         if (play_to_callee)
1371                 ast_set_flag(&(config->features_callee), AST_FEATURE_PLAY_WARNING);
1372         return 0;
1373 }
1374
1375 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
1376         struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
1377 {
1378
1379         int res2;
1380         int loopcount = 0;
1381
1382         /* Get the user's intro, store it in priv-callerintros/$CID,
1383            unless it is already there-- this should be done before the
1384            call is actually dialed  */
1385
1386         /* all ring indications and moh for the caller has been halted as soon as the
1387            target extension was picked up. We are going to have to kill some
1388            time and make the caller believe the peer hasn't picked up yet */
1389
1390         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1391                 char *original_moh = ast_strdupa(chan->musicclass);
1392                 ast_indicate(chan, -1);
1393                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1394                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1395                 ast_string_field_set(chan, musicclass, original_moh);
1396         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1397                 ast_indicate(chan, AST_CONTROL_RINGING);
1398                 pa->sentringing++;
1399         }
1400
1401         /* Start autoservice on the other chan ?? */
1402         res2 = ast_autoservice_start(chan);
1403         /* Now Stream the File */
1404         for (loopcount = 0; loopcount < 3; loopcount++) {
1405                 if (res2 && loopcount == 0) /* error in ast_autoservice_start() */
1406                         break;
1407                 if (!res2) /* on timeout, play the message again */
1408                         res2 = ast_play_and_wait(peer, "priv-callpending");
1409                 if (!valid_priv_reply(opts, res2))
1410                         res2 = 0;
1411                 /* priv-callpending script:
1412                    "I have a caller waiting, who introduces themselves as:"
1413                 */
1414                 if (!res2)
1415                         res2 = ast_play_and_wait(peer, pa->privintro);
1416                 if (!valid_priv_reply(opts, res2))
1417                         res2 = 0;
1418                 /* now get input from the called party, as to their choice */
1419                 if (!res2) {
1420                         /* XXX can we have both, or they are mutually exclusive ? */
1421                         if (ast_test_flag64(opts, OPT_PRIVACY))
1422                                 res2 = ast_play_and_wait(peer, "priv-callee-options");
1423                         if (ast_test_flag64(opts, OPT_SCREENING))
1424                                 res2 = ast_play_and_wait(peer, "screen-callee-options");
1425                 }
1426                 /*! \page DialPrivacy Dial Privacy scripts
1427                 \par priv-callee-options script:
1428                         "Dial 1 if you wish this caller to reach you directly in the future,
1429                                 and immediately connect to their incoming call
1430                          Dial 2 if you wish to send this caller to voicemail now and
1431                                 forevermore.
1432                          Dial 3 to send this caller to the torture menus, now and forevermore.
1433                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1434                          Dial 5 to allow this caller to come straight thru to you in the future,
1435                                 but right now, just this once, send them to voicemail."
1436                 \par screen-callee-options script:
1437                         "Dial 1 if you wish to immediately connect to the incoming call
1438                          Dial 2 if you wish to send this caller to voicemail.
1439                          Dial 3 to send this caller to the torture menus.
1440                          Dial 4 to send this caller to a simple "go away" menu.
1441                 */
1442                 if (valid_priv_reply(opts, res2))
1443                         break;
1444                 /* invalid option */
1445                 res2 = ast_play_and_wait(peer, "vm-sorry");
1446         }
1447
1448         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1449                 ast_moh_stop(chan);
1450         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1451                 ast_indicate(chan, -1);
1452                 pa->sentringing = 0;
1453         }
1454         ast_autoservice_stop(chan);
1455         if (ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1456                 /* map keypresses to various things, the index is res2 - '1' */
1457                 static const char * const _val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1458                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1459                 int i = res2 - '1';
1460                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1461                         opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1462                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1463         }
1464         switch (res2) {
1465         case '1':
1466                 break;
1467         case '2':
1468                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1469                 break;
1470         case '3':
1471                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1472                 break;
1473         case '4':
1474                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1475                 break;
1476         case '5':
1477                 /* XXX should we set status to DENY ? */
1478                 if (ast_test_flag64(opts, OPT_PRIVACY))
1479                         break;
1480                 /* if not privacy, then 5 is the same as "default" case */
1481         default: /* bad input or -1 if failure to start autoservice */
1482                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1483                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1484                           or,... put 'em thru to voicemail. */
1485                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1486                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1487                 /* XXX should we set status to DENY ? */
1488                 /* XXX what about the privacy flags ? */
1489                 break;
1490         }
1491
1492         if (res2 == '1') { /* the only case where we actually connect */
1493                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll
1494                    just clog things up, and it's not useful information, not being tied to a CID */
1495                 if (strncmp(pa->privcid, "NOCALLERID", 10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO)) {
1496                         ast_filedelete(pa->privintro, NULL);
1497                         if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1498                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1499                         else
1500                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1501                 }
1502                 return 0; /* the good exit path */
1503         } else {
1504                 ast_hangup(peer); /* hang up on the callee -- he didn't want to talk anyway! */
1505                 return -1;
1506         }
1507 }
1508
1509 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1510 static int setup_privacy_args(struct privacy_args *pa,
1511         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1512 {
1513         char callerid[60];
1514         int res;
1515         char *l;
1516         int silencethreshold;
1517
1518         if (!ast_strlen_zero(chan->cid.cid_num)) {
1519                 l = ast_strdupa(chan->cid.cid_num);
1520                 ast_shrink_phone_number(l);
1521                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1522                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n", opt_args[OPT_ARG_PRIVACY], l);
1523                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1524                 } else {
1525                         ast_verb(3, "Privacy Screening, clid is '%s'\n", l);
1526                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1527                 }
1528         } else {
1529                 char *tnam, *tn2;
1530
1531                 tnam = ast_strdupa(chan->name);
1532                 /* clean the channel name so slashes don't try to end up in disk file name */
1533                 for (tn2 = tnam; *tn2; tn2++) {
1534                         if (*tn2 == '/')  /* any other chars to be afraid of? */
1535                                 *tn2 = '=';
1536                 }
1537                 ast_verb(3, "Privacy-- callerid is empty\n");
1538
1539                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", chan->exten, tnam);
1540                 l = callerid;
1541                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1542         }
1543
1544         ast_copy_string(pa->privcid, l, sizeof(pa->privcid));
1545
1546         if (strncmp(pa->privcid, "NOCALLERID", 10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCALLERID)) {
1547                 /* if callerid is set and OPT_SCREEN_NOCALLERID is set also */
1548                 ast_verb(3, "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1549                 pa->privdb_val = AST_PRIVACY_ALLOW;
1550         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCALLERID) && strncmp(pa->privcid, "NOCALLERID", 10) == 0) {
1551                 ast_verb(3, "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1552         }
1553         
1554         if (pa->privdb_val == AST_PRIVACY_DENY) {
1555                 ast_verb(3, "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1556                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1557                 return 0;
1558         } else if (pa->privdb_val == AST_PRIVACY_KILL) {
1559                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1560                 return 0; /* Is this right? */
1561         } else if (pa->privdb_val == AST_PRIVACY_TORTURE) {
1562                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1563                 return 0; /* is this right??? */
1564         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN) {
1565                 /* Get the user's intro, store it in priv-callerintros/$CID,
1566                    unless it is already there-- this should be done before the
1567                    call is actually dialed  */
1568
1569                 /* make sure the priv-callerintros dir actually exists */
1570                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1571                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1572                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1573                         return -1;
1574                 }
1575
1576                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1577                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1578                         /* the DELUX version of this code would allow this caller the
1579                            option to hear and retape their previously recorded intro.
1580                         */
1581                 } else {
1582                         int duration; /* for feedback from play_and_wait */
1583                         /* the file doesn't exist yet. Let the caller submit his
1584                            vocal intro for posterity */
1585                         /* priv-recordintro script:
1586
1587                            "At the tone, please say your name:"
1588
1589                         */
1590                         silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
1591                         ast_answer(chan);
1592                         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 */
1593                                                                         /* don't think we'll need a lock removed, we took care of
1594                                                                            conflicts by naming the pa.privintro file */
1595                         if (res == -1) {
1596                                 /* Delete the file regardless since they hung up during recording */
1597                                 ast_filedelete(pa->privintro, NULL);
1598                                 if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1599                                         ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1600                                 else
1601                                         ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1602                                 return -1;
1603                         }
1604                         if (!ast_streamfile(chan, "vm-dialout", chan->language) )
1605                                 ast_waitstream(chan, "");
1606                 }
1607         }
1608         return 1; /* success */
1609 }
1610
1611 static void end_bridge_callback(void *data)
1612 {
1613         char buf[80];
1614         time_t end;
1615         struct ast_channel *chan = data;
1616
1617         if (!chan->cdr) {
1618                 return;
1619         }
1620
1621         time(&end);
1622
1623         ast_channel_lock(chan);
1624         if (chan->cdr->answer.tv_sec) {
1625                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->answer.tv_sec);
1626                 pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
1627         }
1628
1629         if (chan->cdr->start.tv_sec) {
1630                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->start.tv_sec);
1631                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
1632         }
1633         ast_channel_unlock(chan);
1634 }
1635
1636 static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator) {
1637         bconfig->end_bridge_callback_data = originator;
1638 }
1639
1640 static int dial_exec_full(struct ast_channel *chan, const char *data, struct ast_flags64 *peerflags, int *continue_exec)
1641 {
1642         int res = -1; /* default: error */
1643         char *rest, *cur; /* scan the list of destinations */
1644         struct chanlist *outgoing = NULL; /* list of destinations */
1645         struct ast_channel *peer;
1646         int to; /* timeout */
1647         struct cause_args num = { chan, 0, 0, 0 };
1648         int cause;
1649         char numsubst[256];
1650         char cidname[AST_MAX_EXTENSION] = "";
1651
1652         struct ast_bridge_config config = { { 0, } };
1653         struct timeval calldurationlimit = { 0, };
1654         char *dtmfcalled = NULL, *dtmfcalling = NULL, *dtmf_progress=NULL;
1655         struct privacy_args pa = {
1656                 .sentringing = 0,
1657                 .privdb_val = 0,
1658                 .status = "INVALIDARGS",
1659         };
1660         int sentringing = 0, moh = 0;
1661         const char *outbound_group = NULL;
1662         int result = 0;
1663         char *parse;
1664         int opermode = 0;
1665         AST_DECLARE_APP_ARGS(args,
1666                 AST_APP_ARG(peers);
1667                 AST_APP_ARG(timeout);
1668                 AST_APP_ARG(options);
1669                 AST_APP_ARG(url);
1670         );
1671         struct ast_flags64 opts = { 0, };
1672         char *opt_args[OPT_ARG_ARRAY_SIZE];
1673         struct ast_datastore *datastore = NULL;
1674         int fulldial = 0, num_dialed = 0;
1675
1676         /* Reset all DIAL variables back to blank, to prevent confusion (in case we don't reset all of them). */
1677         pbx_builtin_setvar_helper(chan, "DIALSTATUS", "");
1678         pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", "");
1679         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", "");
1680         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", "");
1681         pbx_builtin_setvar_helper(chan, "DIALEDTIME", "");
1682
1683         if (ast_strlen_zero(data)) {
1684                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1685                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1686                 return -1;
1687         }
1688
1689         parse = ast_strdupa(data);
1690
1691         AST_STANDARD_APP_ARGS(args, parse);
1692
1693         if (!ast_strlen_zero(args.options) &&
1694                 ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
1695                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1696                 goto done;
1697         }
1698
1699         if (ast_strlen_zero(args.peers)) {
1700                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1701                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1702                 goto done;
1703         }
1704
1705         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
1706                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
1707                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
1708         }
1709
1710         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
1711                 calldurationlimit.tv_sec = atoi(opt_args[OPT_ARG_DURATION_STOP]);
1712                 if (!calldurationlimit.tv_sec) {
1713                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
1714                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1715                         goto done;
1716                 }
1717                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n", calldurationlimit.tv_sec + calldurationlimit.tv_usec / 1000000.0);
1718         }
1719
1720         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
1721                 dtmf_progress = opt_args[OPT_ARG_SENDDTMF];
1722                 dtmfcalled = strsep(&dtmf_progress, ":");
1723                 dtmfcalling = strsep(&dtmf_progress, ":");
1724         }
1725
1726         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
1727                 if (do_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
1728                         goto done;
1729         }
1730
1731         if (ast_test_flag64(&opts, OPT_RESETCDR) && chan->cdr)
1732                 ast_cdr_reset(chan->cdr, NULL);
1733         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
1734                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(chan->exten);
1735
1736         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
1737                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
1738                 if (res <= 0)
1739                         goto out;
1740                 res = -1; /* reset default */
1741         }
1742
1743         if (ast_test_flag64(&opts, OPT_DTMF_EXIT) || ast_test_flag64(&opts, OPT_CALLER_HANGUP)) {
1744                 __ast_answer(chan, 0, 0);
1745         }
1746
1747         if (continue_exec)
1748                 *continue_exec = 0;
1749
1750         /* If a channel group has been specified, get it for use when we create peer channels */
1751
1752         ast_channel_lock(chan);
1753         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
1754                 outbound_group = ast_strdupa(outbound_group);   
1755                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
1756         } else if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP"))) {
1757                 outbound_group = ast_strdupa(outbound_group);
1758         }
1759         ast_channel_unlock(chan);       
1760         ast_copy_flags64(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING | OPT_IGNORE_CONNECTEDLINE | OPT_CANCEL_TIMEOUT);
1761
1762         /* loop through the list of dial destinations */
1763         rest = args.peers;
1764         while ((cur = strsep(&rest, "&")) ) {
1765                 struct chanlist *tmp;
1766                 struct ast_channel *tc; /* channel for this destination */
1767                 /* Get a technology/[device:]number pair */
1768                 char *number = cur;
1769                 char *interface = ast_strdupa(number);
1770                 char *tech = strsep(&number, "/");
1771                 /* find if we already dialed this interface */
1772                 struct ast_dialed_interface *di;
1773                 AST_LIST_HEAD(, ast_dialed_interface) *dialed_interfaces;
1774                 num_dialed++;
1775                 if (!number) {
1776                         ast_log(LOG_WARNING, "Dial argument takes format (technology/[device:]number1)\n");
1777                         goto out;
1778                 }
1779                 if (!(tmp = ast_calloc(1, sizeof(*tmp))))
1780                         goto out;
1781                 if (opts.flags) {
1782                         ast_copy_flags64(tmp, &opts,
1783                                 OPT_CANCEL_ELSEWHERE |
1784                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1785                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1786                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1787                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1788                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1789                                 OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID);
1790                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);
1791                 }
1792                 ast_copy_string(numsubst, number, sizeof(numsubst));
1793                 /* Request the peer */
1794
1795                 ast_channel_lock(chan);
1796                 datastore = ast_channel_datastore_find(chan, &dialed_interface_info, NULL);
1797                 /* If the incoming channel has previously had connected line information
1798                  * set on it (perhaps through the CONNECTED_LINE dialplan function) then
1799                  * seed the calllist's connected line information with this previously
1800                  * acquired info
1801                  */
1802                 if (chan->connected.id.number) {
1803                         ast_party_connected_line_copy(&tmp->connected, &chan->connected);
1804                 }
1805                 ast_channel_unlock(chan);
1806
1807                 if (datastore)
1808                         dialed_interfaces = datastore->data;
1809                 else {
1810                         if (!(datastore = ast_datastore_alloc(&dialed_interface_info, NULL))) {
1811                                 ast_log(LOG_WARNING, "Unable to create channel datastore for dialed interfaces. Aborting!\n");
1812                                 ast_free(tmp);
1813                                 goto out;
1814                         }
1815
1816                         datastore->inheritance = DATASTORE_INHERIT_FOREVER;
1817
1818                         if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
1819                                 ast_free(tmp);
1820                                 goto out;
1821                         }
1822
1823                         datastore->data = dialed_interfaces;
1824                         AST_LIST_HEAD_INIT(dialed_interfaces);
1825
1826                         ast_channel_lock(chan);
1827                         ast_channel_datastore_add(chan, datastore);
1828                         ast_channel_unlock(chan);
1829                 }
1830
1831                 AST_LIST_LOCK(dialed_interfaces);
1832                 AST_LIST_TRAVERSE(dialed_interfaces, di, list) {
1833                         if (!strcasecmp(di->interface, interface)) {
1834                                 ast_log(LOG_WARNING, "Skipping dialing interface '%s' again since it has already been dialed\n",
1835                                         di->interface);
1836                                 break;
1837                         }
1838                 }
1839                 AST_LIST_UNLOCK(dialed_interfaces);
1840
1841                 if (di) {
1842                         fulldial++;
1843                         ast_free(tmp);
1844                         continue;
1845                 }
1846
1847                 /* It is always ok to dial a Local interface.  We only keep track of
1848                  * which "real" interfaces have been dialed.  The Local channel will
1849                  * inherit this list so that if it ends up dialing a real interface,
1850                  * it won't call one that has already been called. */
1851                 if (strcasecmp(tech, "Local")) {
1852                         if (!(di = ast_calloc(1, sizeof(*di) + strlen(interface)))) {
1853                                 AST_LIST_UNLOCK(dialed_interfaces);
1854                                 ast_free(tmp);
1855                                 goto out;
1856                         }
1857                         strcpy(di->interface, interface);
1858
1859                         AST_LIST_LOCK(dialed_interfaces);
1860                         AST_LIST_INSERT_TAIL(dialed_interfaces, di, list);
1861                         AST_LIST_UNLOCK(dialed_interfaces);
1862                 }
1863
1864                 tc = ast_request(tech, chan->nativeformats, numsubst, &cause);
1865                 if (!tc) {
1866                         /* If we can't, just go on to the next call */
1867                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
1868                                 tech, cause, ast_cause2str(cause));
1869                         handle_cause(cause, &num);
1870                         if (!rest) /* we are on the last destination */
1871                                 chan->hangupcause = cause;
1872                         ast_free(tmp);
1873                         continue;
1874                 }
1875                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", numsubst);
1876
1877                 ast_channel_lock(tc);
1878                 while (ast_channel_trylock(chan)) {
1879                         CHANNEL_DEADLOCK_AVOIDANCE(tc);
1880                 }
1881                 /* Setup outgoing SDP to match incoming one */
1882                 if (!outgoing && !rest) {
1883                         ast_rtp_instance_early_bridge_make_compatible(tc, chan);
1884                 }
1885                 
1886                 /* Inherit specially named variables from parent channel */
1887                 ast_channel_inherit_variables(chan, tc);
1888                 ast_channel_datastore_inherit(chan, tc);
1889
1890                 tc->appl = "AppDial";
1891                 tc->data = "(Outgoing Line)";
1892                 memset(&tc->whentohangup, 0, sizeof(tc->whentohangup));
1893
1894                 /* If the new channel has no callerid, try to guess what it should be */
1895                 if (ast_strlen_zero(tc->cid.cid_num)) {
1896                         if (!ast_strlen_zero(chan->connected.id.number)) {
1897                                 ast_set_callerid(tc, chan->connected.id.number, chan->connected.id.name, chan->connected.ani);
1898                         } else if (!ast_strlen_zero(chan->cid.cid_dnid)) {
1899                                 ast_set_callerid(tc, chan->cid.cid_dnid, NULL, NULL);
1900                         } else if (!ast_strlen_zero(S_OR(chan->macroexten, chan->exten))) {
1901                                 ast_set_callerid(tc, S_OR(chan->macroexten, chan->exten), NULL, NULL);
1902                         }
1903                         ast_set_flag64(tmp, DIAL_NOCONNECTEDLINE);
1904                 }
1905                 
1906                 ast_connected_line_copy_from_caller(&tc->connected, &chan->cid);
1907
1908                 S_REPLACE(tc->cid.cid_rdnis, ast_strdup(chan->cid.cid_rdnis));
1909                 ast_party_redirecting_copy(&tc->redirecting, &chan->redirecting);
1910
1911                 tc->cid.cid_tns = chan->cid.cid_tns;
1912
1913                 ast_string_field_set(tc, accountcode, chan->accountcode);
1914                 tc->cdrflags = chan->cdrflags;
1915                 if (ast_strlen_zero(tc->musicclass))
1916                         ast_string_field_set(tc, musicclass, chan->musicclass);
1917
1918                 /* Pass ADSI CPE and transfer capability */
1919                 tc->adsicpe = chan->adsicpe;
1920                 tc->transfercapability = chan->transfercapability;
1921
1922                 /* If we have an outbound group, set this peer channel to it */
1923                 if (outbound_group)
1924                         ast_app_group_set_channel(tc, outbound_group);
1925                 /* If the calling channel has the ANSWERED_ELSEWHERE flag set, inherit it. This is to support local channels */
1926                 if (ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE))
1927                         ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1928
1929                 /* Check if we're forced by configuration */
1930                 if (ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE))
1931                          ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1932
1933
1934                 /* Inherit context and extension */
1935                 ast_string_field_set(tc, dialcontext, ast_strlen_zero(chan->macrocontext) ? chan->context : chan->macrocontext);
1936                 if (!ast_strlen_zero(chan->macroexten))
1937                         ast_copy_string(tc->exten, chan->macroexten, sizeof(tc->exten));
1938                 else
1939                         ast_copy_string(tc->exten, chan->exten, sizeof(tc->exten));
1940
1941                 ast_channel_unlock(tc);
1942                 res = ast_call(tc, numsubst, 0); /* Place the call, but don't wait on the answer */
1943
1944                 /* Save the info in cdr's that we called them */
1945                 if (chan->cdr)
1946                         ast_cdr_setdestchan(chan->cdr, tc->name);
1947
1948                 /* check the results of ast_call */
1949                 if (res) {
1950                         /* Again, keep going even if there's an error */
1951                         ast_debug(1, "ast call on peer returned %d\n", res);
1952                         ast_verb(3, "Couldn't call %s\n", numsubst);
1953                         if (tc->hangupcause) {
1954                                 chan->hangupcause = tc->hangupcause;
1955                         }
1956                         ast_channel_unlock(chan);
1957                         ast_hangup(tc);
1958                         tc = NULL;
1959                         ast_free(tmp);
1960                         continue;
1961                 } else {
1962                         const char *tmpexten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
1963                         senddialevent(chan, tc, numsubst);
1964                         ast_verb(3, "Called %s\n", numsubst);
1965                         ast_channel_unlock(chan);
1966                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
1967                                 ast_set_callerid(tc, tmpexten, get_cid_name(cidname, sizeof(cidname), chan), NULL);
1968                         }
1969                 }
1970                 /* Put them in the list of outgoing thingies...  We're ready now.
1971                    XXX If we're forcibly removed, these outgoing calls won't get
1972                    hung up XXX */
1973                 ast_set_flag64(tmp, DIAL_STILLGOING);
1974                 tmp->chan = tc;
1975                 tmp->next = outgoing;
1976                 outgoing = tmp;
1977                 /* If this line is up, don't try anybody else */
1978                 if (outgoing->chan->_state == AST_STATE_UP)
1979                         break;
1980         }
1981         
1982         if (ast_strlen_zero(args.timeout)) {
1983                 to = -1;
1984         } else {
1985                 to = atoi(args.timeout);
1986                 if (to > 0)
1987                         to *= 1000;
1988                 else {
1989                         ast_log(LOG_WARNING, "Invalid timeout specified: '%s'. Setting timeout to infinite\n", args.timeout);
1990                         to = -1;
1991                 }
1992         }
1993
1994         if (!outgoing) {
1995                 strcpy(pa.status, "CHANUNAVAIL");
1996                 if (fulldial == num_dialed) {
1997                         res = -1;
1998                         goto out;
1999                 }
2000         } else {
2001                 /* Our status will at least be NOANSWER */
2002                 strcpy(pa.status, "NOANSWER");
2003                 if (ast_test_flag64(outgoing, OPT_MUSICBACK)) {
2004                         moh = 1;
2005                         if (!ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
2006                                 char *original_moh = ast_strdupa(chan->musicclass);
2007                                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
2008                                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
2009                                 ast_string_field_set(chan, musicclass, original_moh);
2010                         } else {
2011                                 ast_moh_start(chan, NULL, NULL);
2012                         }
2013                         ast_indicate(chan, AST_CONTROL_PROGRESS);
2014                 } else if (ast_test_flag64(outgoing, OPT_RINGBACK)) {
2015                         ast_indicate(chan, AST_CONTROL_RINGING);
2016                         sentringing++;
2017                 }
2018         }
2019
2020         peer = wait_for_answer(chan, outgoing, &to, peerflags, &pa, &num, &result, dtmf_progress);
2021
2022         /* The ast_channel_datastore_remove() function could fail here if the
2023          * datastore was moved to another channel during a masquerade. If this is
2024          * the case, don't free the datastore here because later, when the channel
2025          * to which the datastore was moved hangs up, it will attempt to free this
2026          * datastore again, causing a crash
2027          */
2028         if (!ast_channel_datastore_remove(chan, datastore))
2029                 ast_datastore_free(datastore);
2030         if (!peer) {
2031                 if (result) {
2032                         res = result;
2033                 } else if (to) { /* Musta gotten hung up */
2034                         res = -1;
2035                 } else { /* Nobody answered, next please? */
2036                         res = 0;
2037                 }
2038
2039                 /* SIP, in particular, sends back this error code to indicate an
2040                  * overlap dialled number needs more digits. */
2041                 if (chan->hangupcause == AST_CAUSE_INVALID_NUMBER_FORMAT) {
2042                         res = AST_PBX_INCOMPLETE;
2043                 }
2044
2045                 /* almost done, although the 'else' block is 400 lines */
2046         } else {
2047                 const char *number;
2048
2049                 strcpy(pa.status, "ANSWER");
2050                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2051                 /* Ah ha!  Someone answered within the desired timeframe.  Of course after this
2052                    we will always return with -1 so that it is hung up properly after the
2053                    conversation.  */
2054                 hanguptree(outgoing, peer, 1);
2055                 outgoing = NULL;
2056                 /* If appropriate, log that we have a destination channel */
2057                 if (chan->cdr)
2058                         ast_cdr_setdestchan(chan->cdr, peer->name);
2059                 if (peer->name)
2060                         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", peer->name);
2061                 
2062                 ast_channel_lock(peer);
2063                 number = pbx_builtin_getvar_helper(peer, "DIALEDPEERNUMBER"); 
2064                 if (!number)
2065                         number = numsubst;
2066                 pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", number);
2067                 ast_channel_unlock(peer);
2068
2069                 if (!ast_strlen_zero(args.url) && ast_channel_supports_html(peer) ) {
2070                         ast_debug(1, "app_dial: sendurl=%s.\n", args.url);
2071                         ast_channel_sendurl( peer, args.url );
2072                 }
2073                 if ( (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) && pa.privdb_val == AST_PRIVACY_UNKNOWN) {
2074                         if (do_privacy(chan, peer, &opts, opt_args, &pa)) {
2075                                 res = 0;
2076                                 goto out;
2077                         }
2078                 }
2079                 if (!ast_test_flag64(&opts, OPT_ANNOUNCE) || ast_strlen_zero(opt_args[OPT_ARG_ANNOUNCE])) {
2080                         res = 0;
2081                 } else {
2082                         int digit = 0;
2083                         /* Start autoservice on the other chan */
2084                         res = ast_autoservice_start(chan);
2085                         /* Now Stream the File */
2086                         if (!res)
2087                                 res = ast_streamfile(peer, opt_args[OPT_ARG_ANNOUNCE], peer->language);
2088                         if (!res) {
2089                                 digit = ast_waitstream(peer, AST_DIGIT_ANY);
2090                         }
2091                         /* Ok, done. stop autoservice */
2092                         res = ast_autoservice_stop(chan);
2093                         if (digit > 0 && !res)
2094                                 res = ast_senddigit(chan, digit, 0);
2095                         else
2096                                 res = digit;
2097
2098                 }
2099
2100                 if (chan && peer && ast_test_flag64(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
2101                         replace_macro_delimiter(opt_args[OPT_ARG_GOTO]);
2102                         ast_parseable_goto(chan, opt_args[OPT_ARG_GOTO]);
2103                         /* peer goes to the same context and extension as chan, so just copy info from chan*/
2104                         ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2105                         ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2106                         peer->priority = chan->priority + 2;
2107                         ast_pbx_start(peer);
2108                         hanguptree(outgoing, NULL, ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE) ? 1 : 0);
2109                         if (continue_exec)
2110                                 *continue_exec = 1;
2111                         res = 0;
2112                         goto done;
2113                 }
2114
2115                 if (ast_test_flag64(&opts, OPT_CALLEE_MACRO) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_MACRO])) {
2116                         struct ast_app *theapp;
2117                         const char *macro_result;
2118
2119                         res = ast_autoservice_start(chan);
2120                         if (res) {
2121                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2122                                 res = -1;
2123                         }
2124
2125                         theapp = pbx_findapp("Macro");
2126
2127                         if (theapp && !res) { /* XXX why check res here ? */
2128                                 /* Set peer->exten and peer->context so that MACRO_EXTEN and MACRO_CONTEXT get set */
2129                                 ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2130                                 ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2131
2132                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_MACRO]);
2133                                 res = pbx_exec(peer, theapp, opt_args[OPT_ARG_CALLEE_MACRO]);
2134                                 ast_debug(1, "Macro exited with status %d\n", res);
2135                                 res = 0;
2136                         } else {
2137                                 ast_log(LOG_ERROR, "Could not find application Macro\n");
2138                                 res = -1;
2139                         }
2140
2141                         if (ast_autoservice_stop(chan) < 0) {
2142                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2143                                 res = -1;
2144                         }
2145
2146                         ast_channel_lock(peer);
2147
2148                         if (!res && (macro_result = pbx_builtin_getvar_helper(peer, "MACRO_RESULT"))) {
2149                                 char *macro_transfer_dest;
2150
2151                                 if (!strcasecmp(macro_result, "BUSY")) {
2152                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2153                                         ast_set_flag64(peerflags, OPT_GO_ON);
2154                                         res = -1;
2155                                 } else if (!strcasecmp(macro_result, "CONGESTION") || !strcasecmp(macro_result, "CHANUNAVAIL")) {
2156                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2157                                         ast_set_flag64(peerflags, OPT_GO_ON);
2158                                         res = -1;
2159                                 } else if (!strcasecmp(macro_result, "CONTINUE")) {
2160                                         /* hangup peer and keep chan alive assuming the macro has changed
2161                                            the context / exten / priority or perhaps
2162                                            the next priority in the current exten is desired.
2163                                         */
2164                                         ast_set_flag64(peerflags, OPT_GO_ON);
2165                                         res = -1;
2166                                 } else if (!strcasecmp(macro_result, "ABORT")) {
2167                                         /* Hangup both ends unless the caller has the g flag */
2168                                         res = -1;
2169                                 } else if (!strncasecmp(macro_result, "GOTO:", 5) && (macro_transfer_dest = ast_strdupa(macro_result + 5))) {
2170                                         res = -1;
2171                                         /* perform a transfer to a new extension */
2172                                         if (strchr(macro_transfer_dest, '^')) { /* context^exten^priority*/
2173                                                 replace_macro_delimiter(macro_transfer_dest);
2174                                                 if (!ast_parseable_goto(chan, macro_transfer_dest))
2175                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2176                                         }
2177                                 }
2178                         }
2179
2180                         ast_channel_unlock(peer);
2181                 }
2182
2183                 if (ast_test_flag64(&opts, OPT_CALLEE_GOSUB) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GOSUB])) {
2184                         struct ast_app *theapp;
2185                         const char *gosub_result;
2186                         char *gosub_args, *gosub_argstart;
2187                         int res9 = -1;
2188
2189                         res9 = ast_autoservice_start(chan);
2190                         if (res9) {
2191                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2192                                 res9 = -1;
2193                         }
2194
2195                         theapp = pbx_findapp("Gosub");
2196
2197                         if (theapp && !res9) {
2198                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GOSUB]);
2199
2200                                 /* Set where we came from */
2201                                 ast_copy_string(peer->context, "app_dial_gosub_virtual_context", sizeof(peer->context));
2202                                 ast_copy_string(peer->exten, "s", sizeof(peer->exten));
2203                                 peer->priority = 0;
2204
2205                                 gosub_argstart = strchr(opt_args[OPT_ARG_CALLEE_GOSUB], ',');
2206                                 if (gosub_argstart) {
2207                                         *gosub_argstart = 0;
2208                                         if (asprintf(&gosub_args, "%s,s,1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], gosub_argstart + 1) < 0) {
2209                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2210                                                 gosub_args = NULL;
2211                                         }
2212                                         *gosub_argstart = ',';
2213                                 } else {
2214                                         if (asprintf(&gosub_args, "%s,s,1", opt_args[OPT_ARG_CALLEE_GOSUB]) < 0) {
2215                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2216                                                 gosub_args = NULL;
2217                                         }
2218                                 }
2219
2220                                 if (gosub_args) {
2221                                         res9 = pbx_exec(peer, theapp, gosub_args);
2222                                         if (!res9) {
2223                                                 struct ast_pbx_args args;
2224                                                 /* A struct initializer fails to compile for this case ... */
2225                                                 memset(&args, 0, sizeof(args));
2226                                                 args.no_hangup_chan = 1;
2227                                                 ast_pbx_run_args(peer, &args);
2228                                         }
2229                                         ast_free(gosub_args);
2230                                         ast_debug(1, "Gosub exited with status %d\n", res9);
2231                                 } else {
2232                                         ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
2233                                 }
2234
2235                         } else if (!res9) {
2236                                 ast_log(LOG_ERROR, "Could not find application Gosub\n");
2237                                 res9 = -1;
2238                         }
2239
2240                         if (ast_autoservice_stop(chan) < 0) {
2241                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2242                                 res9 = -1;
2243                         }
2244                         
2245                         ast_channel_lock(peer);
2246
2247                         if (!res9 && (gosub_result = pbx_builtin_getvar_helper(peer, "GOSUB_RESULT"))) {
2248                                 char *gosub_transfer_dest;
2249
2250                                 if (!strcasecmp(gosub_result, "BUSY")) {
2251                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2252                                         ast_set_flag64(peerflags, OPT_GO_ON);
2253                                         res9 = -1;
2254                                 } else if (!strcasecmp(gosub_result, "CONGESTION") || !strcasecmp(gosub_result, "CHANUNAVAIL")) {
2255                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2256                                         ast_set_flag64(peerflags, OPT_GO_ON);
2257                                         res9 = -1;
2258                                 } else if (!strcasecmp(gosub_result, "CONTINUE")) {
2259                                         /* hangup peer and keep chan alive assuming the macro has changed
2260                                            the context / exten / priority or perhaps
2261                                            the next priority in the current exten is desired.
2262                                         */
2263                                         ast_set_flag64(peerflags, OPT_GO_ON);
2264                                         res9 = -1;
2265                                 } else if (!strcasecmp(gosub_result, "ABORT")) {
2266                                         /* Hangup both ends unless the caller has the g flag */
2267                                         res9 = -1;
2268                                 } else if (!strncasecmp(gosub_result, "GOTO:", 5) && (gosub_transfer_dest = ast_strdupa(gosub_result + 5))) {
2269                                         res9 = -1;
2270                                         /* perform a transfer to a new extension */
2271                                         if (strchr(gosub_transfer_dest, '^')) { /* context^exten^priority*/
2272                                                 replace_macro_delimiter(gosub_transfer_dest);
2273                                                 if (!ast_parseable_goto(chan, gosub_transfer_dest))
2274                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2275                                         }
2276                                 }
2277                         }
2278
2279                         ast_channel_unlock(peer);       
2280                 }
2281
2282                 if (!res) {
2283                         if (!ast_tvzero(calldurationlimit)) {
2284                                 struct timeval whentohangup = calldurationlimit;
2285                                 peer->whentohangup = ast_tvadd(ast_tvnow(), whentohangup);
2286                         }
2287                         if (!ast_strlen_zero(dtmfcalled)) {
2288                                 ast_verb(3, "Sending DTMF '%s' to the called party.\n", dtmfcalled);
2289                                 res = ast_dtmf_stream(peer, chan, dtmfcalled, 250, 0);
2290                         }
2291                         if (!ast_strlen_zero(dtmfcalling)) {
2292                                 ast_verb(3, "Sending DTMF '%s' to the calling party.\n", dtmfcalling);
2293                                 res = ast_dtmf_stream(chan, peer, dtmfcalling, 250, 0);
2294                         }
2295                 }
2296
2297                 if (res) { /* some error */
2298                         res = -1;
2299                 } else {
2300                         if (ast_test_flag64(peerflags, OPT_CALLEE_TRANSFER))
2301                                 ast_set_flag(&(config.features_callee), AST_FEATURE_REDIRECT);
2302                         if (ast_test_flag64(peerflags, OPT_CALLER_TRANSFER))
2303                                 ast_set_flag(&(config.features_caller), AST_FEATURE_REDIRECT);
2304                         if (ast_test_flag64(peerflags, OPT_CALLEE_HANGUP))
2305                                 ast_set_flag(&(config.features_callee), AST_FEATURE_DISCONNECT);
2306                         if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP))
2307                                 ast_set_flag(&(config.features_caller), AST_FEATURE_DISCONNECT);
2308                         if (ast_test_flag64(peerflags, OPT_CALLEE_MONITOR))
2309                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMON);
2310                         if (ast_test_flag64(peerflags, OPT_CALLER_MONITOR))
2311                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMON);
2312                         if (ast_test_flag64(peerflags, OPT_CALLEE_PARK))
2313                                 ast_set_flag(&(config.features_callee), AST_FEATURE_PARKCALL);
2314                         if (ast_test_flag64(peerflags, OPT_CALLER_PARK))
2315                                 ast_set_flag(&(config.features_caller), AST_FEATURE_PARKCALL);
2316                         if (ast_test_flag64(peerflags, OPT_CALLEE_MIXMONITOR))
2317                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMIXMON);
2318                         if (ast_test_flag64(peerflags, OPT_CALLER_MIXMONITOR))
2319                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMIXMON);
2320                         if (ast_test_flag64(peerflags, OPT_GO_ON))
2321                                 ast_set_flag(&(config.features_caller), AST_FEATURE_NO_H_EXTEN);
2322
2323                         config.end_bridge_callback = end_bridge_callback;
2324                         config.end_bridge_callback_data = chan;
2325                         config.end_bridge_callback_data_fixup = end_bridge_callback_data_fixup;
2326                         
2327                         if (moh) {
2328                                 moh = 0;
2329                                 ast_moh_stop(chan);
2330                         } else if (sentringing) {
2331                                 sentringing = 0;
2332                                 ast_indicate(chan, -1);
2333                         }
2334                         /* Be sure no generators are left on it */
2335                         ast_deactivate_generator(chan);
2336                         /* Make sure channels are compatible */
2337                         res = ast_channel_make_compatible(chan, peer);
2338                         if (res < 0) {
2339                                 ast_log(LOG_WARNING, "Had to drop call because I couldn't make %s compatible with %s\n", chan->name, peer->name);
2340                                 ast_hangup(peer);
2341                                 res = -1;
2342                                 goto done;
2343                         }
2344                         if (opermode) {
2345                                 struct oprmode oprmode;
2346
2347                                 oprmode.peer = peer;
2348                                 oprmode.mode = opermode;
2349
2350                                 ast_channel_setoption(chan, AST_OPTION_OPRMODE, &oprmode, sizeof(oprmode), 0);
2351                         }
2352                         res = ast_bridge_call(chan, peer, &config);
2353                 }
2354
2355                 strcpy(peer->context, chan->context);
2356
2357                 if (ast_test_flag64(&opts, OPT_PEER_H) && ast_exists_extension(peer, peer->context, "h", 1, peer->cid.cid_num)) {
2358                         int autoloopflag;
2359                         int found;
2360                         int res9;
2361                         
2362                         strcpy(peer->exten, "h");
2363                         peer->priority = 1;
2364                         autoloopflag = ast_test_flag(peer, AST_FLAG_IN_AUTOLOOP); /* save value to restore at the end */
2365                         ast_set_flag(peer, AST_FLAG_IN_AUTOLOOP);
2366
2367                         while ((res9 = ast_spawn_extension(peer, peer->context, peer->exten, peer->priority, peer->cid.cid_num, &found, 1)) == 0)
2368                                 peer->priority++;
2369
2370                         if (found && res9) {
2371                                 /* Something bad happened, or a hangup has been requested. */
2372                                 ast_debug(1, "Spawn extension (%s,%s,%d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2373                                 ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2374                         }
2375                         ast_set2_flag(peer, autoloopflag, AST_FLAG_IN_AUTOLOOP);  /* set it back the way it was */
2376                 }
2377                 if (!ast_check_hangup(peer) && ast_test_flag64(&opts, OPT_CALLEE_GO_ON)) {
2378                         if(!ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GO_ON])) {
2379                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GO_ON]);
2380                                 ast_parseable_goto(peer, opt_args[OPT_ARG_CALLEE_GO_ON]);
2381                         } else { /* F() */
2382                                 int res;
2383                                 res = ast_goto_if_exists(peer, chan->context, chan->exten, (chan->priority) + 1); 
2384                                 if (res == AST_PBX_GOTO_FAILED) {
2385                                         ast_hangup(peer);
2386                                         goto out;
2387                                 }
2388                         }
2389                         ast_pbx_start(peer);
2390                 } else {
2391                         if (!ast_check_hangup(chan))
2392                                 chan->hangupcause = peer->hangupcause;
2393                         ast_hangup(peer);
2394                 }
2395         }
2396 out:
2397         if (moh) {
2398                 moh = 0;
2399                 ast_moh_stop(chan);
2400         } else if (sentringing) {
2401                 sentringing = 0;
2402                 ast_indicate(chan, -1);
2403         }
2404         ast_channel_early_bridge(chan, NULL);
2405         hanguptree(outgoing, NULL, 0); /* In this case, there's no answer anywhere */
2406         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2407         senddialendevent(chan, pa.status);
2408         ast_debug(1, "Exiting with DIALSTATUS=%s.\n", pa.status);
2409         
2410         if ((ast_test_flag64(peerflags, OPT_GO_ON)) && !ast_check_hangup(chan) && (res != AST_PBX_INCOMPLETE)) {
2411                 if (!ast_tvzero(calldurationlimit))
2412                         memset(&chan->whentohangup, 0, sizeof(chan->whentohangup));
2413                 res = 0;
2414         }
2415
2416 done:
2417         if (config.warning_sound) {
2418                 ast_free((char *)config.warning_sound);
2419         }
2420         if (config.end_sound) {
2421                 ast_free((char *)config.end_sound);
2422         }
2423         if (config.start_sound) {
2424                 ast_free((char *)config.start_sound);
2425         }
2426         return res;
2427 }
2428
2429 static int dial_exec(struct ast_channel *chan, const char *data)
2430 {
2431         struct ast_flags64 peerflags;
2432
2433         memset(&peerflags, 0, sizeof(peerflags));
2434
2435         return dial_exec_full(chan, data, &peerflags, NULL);
2436 }
2437
2438 static int retrydial_exec(struct ast_channel *chan, const char *data)
2439 {
2440         char *parse;
2441         const char *context = NULL;
2442         int sleepms = 0, loops = 0, res = -1;
2443         struct ast_flags64 peerflags = { 0, };
2444         AST_DECLARE_APP_ARGS(args,
2445                 AST_APP_ARG(announce);
2446                 AST_APP_ARG(sleep);
2447                 AST_APP_ARG(retries);
2448                 AST_APP_ARG(dialdata);
2449         );
2450
2451         if (ast_strlen_zero(data)) {
2452                 ast_log(LOG_WARNING, "RetryDial requires an argument!\n");
2453                 return -1;
2454         }
2455
2456         parse = ast_strdupa(data);
2457         AST_STANDARD_APP_ARGS(args, parse);
2458
2459         if (!ast_strlen_zero(args.sleep) && (sleepms = atoi(args.sleep)))
2460                 sleepms *= 1000;
2461
2462         if (!ast_strlen_zero(args.retries)) {
2463                 loops = atoi(args.retries);
2464         }
2465
2466         if (!args.dialdata) {
2467                 ast_log(LOG_ERROR, "%s requires a 4th argument (dialdata)\n", rapp);
2468                 goto done;
2469         }
2470
2471         if (sleepms < 1000)
2472                 sleepms = 10000;
2473
2474         if (!loops)
2475                 loops = -1; /* run forever */
2476
2477         ast_channel_lock(chan);
2478         context = pbx_builtin_getvar_helper(chan, "EXITCONTEXT");
2479         context = !ast_strlen_zero(context) ? ast_strdupa(context) : NULL;
2480         ast_channel_unlock(chan);
2481
2482         res = 0;
2483         while (loops) {
2484                 int continue_exec;
2485
2486                 chan->data = "Retrying";
2487                 if (ast_test_flag(chan, AST_FLAG_MOH))
2488                         ast_moh_stop(chan);
2489
2490                 res = dial_exec_full(chan, args.dialdata, &peerflags, &continue_exec);
2491                 if (continue_exec)
2492                         break;
2493
2494                 if (res == 0) {
2495                         if (ast_test_flag64(&peerflags, OPT_DTMF_EXIT)) {
2496                                 if (!ast_strlen_zero(args.announce)) {
2497                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2498                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2499                                                         ast_waitstream(chan, AST_DIGIT_ANY);
2500                                         } else
2501                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2502                                 }
2503                                 if (!res && sleepms) {
2504                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2505                                                 ast_moh_start(chan, NULL, NULL);
2506                                         res = ast_waitfordigit(chan, sleepms);
2507                                 }
2508                         } else {
2509                                 if (!ast_strlen_zero(args.announce)) {
2510                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2511                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2512                                                         res = ast_waitstream(chan, "");
2513                                         } else
2514                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2515                                 }
2516                                 if (sleepms) {
2517                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2518                                                 ast_moh_start(chan, NULL, NULL);
2519                                         if (!res)
2520                                                 res = ast_waitfordigit(chan, sleepms);
2521                                 }
2522                         }
2523                 }
2524
2525                 if (res < 0 || res == AST_PBX_INCOMPLETE) {
2526                         break;
2527                 } else if (res > 0) { /* Trying to send the call elsewhere (1 digit ext) */
2528                         if (onedigit_goto(chan, context, (char) res, 1)) {
2529                                 res = 0;
2530                                 break;
2531                         }
2532                 }
2533                 loops--;
2534         }
2535         if (loops == 0)
2536                 res = 0;
2537         else if (res == 1)
2538                 res = 0;
2539
2540         if (ast_test_flag(chan, AST_FLAG_MOH))
2541                 ast_moh_stop(chan);
2542  done:
2543         return res;
2544 }
2545
2546 static int unload_module(void)
2547 {
2548         int res;
2549         struct ast_context *con;
2550
2551         res = ast_unregister_application(app);
2552         res |= ast_unregister_application(rapp);
2553
2554         if ((con = ast_context_find("app_dial_gosub_virtual_context"))) {
2555                 ast_context_remove_extension2(con, "s", 1, NULL, 0);
2556                 ast_context_destroy(con, "app_dial"); /* leave nothing behind */
2557         }
2558
2559         return res;
2560 }
2561
2562 static int load_module(void)
2563 {
2564         int res;
2565         struct ast_context *con;
2566
2567         con = ast_context_find_or_create(NULL, NULL, "app_dial_gosub_virtual_context", "app_dial");
2568         if (!con)
2569                 ast_log(LOG_ERROR, "Dial virtual context 'app_dial_gosub_virtual_context' does not exist and unable to create\n");
2570         else
2571                 ast_add_extension2(con, 1, "s", 1, NULL, NULL, "NoOp", ast_strdup(""), ast_free_ptr, "app_dial");
2572
2573         res = ast_register_application_xml(app, dial_exec);
2574         res |= ast_register_application_xml(rapp, retrydial_exec);
2575
2576         return res;
2577 }
2578
2579 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Dialing Application");