Even more changes concerning r187426. Revised where locks are placed yet once again...
[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                                 </option>
262                                 <option name="n">
263                                         <para>This option is a modifier for the call screening/privacy mode. (See the 
264                                         <literal>p</literal> and <literal>P</literal> options.) It specifies
265                                         that no introductions are to be saved in the <directory>priv-callerintros</directory>
266                                         directory.</para>
267                                 </option>
268                                 <option name="N">
269                                         <para>This option is a modifier for the call screening/privacy mode. It specifies
270                                         that if Caller*ID is present, do not screen the call.</para>
271                                 </option>
272                                 <option name="o">
273                                         <para>Specify that the Caller*ID that was present on the <emphasis>calling</emphasis> channel
274                                         be set as the Caller*ID on the <emphasis>called</emphasis> channel. This was the
275                                         behavior of Asterisk 1.0 and earlier.</para>
276                                 </option>
277                                 <option name="O">
278                                         <argument name="mode">
279                                                 <para>With <replaceable>mode</replaceable> either not specified or set to <literal>1</literal>,
280                                                 the originator hanging up will cause the phone to ring back immediately.</para>
281                                                 <para>With <replaceable>mode</replaceable> set to <literal>2</literal>, when the operator 
282                                                 flashes the trunk, it will ring their phone back.</para>
283                                         </argument>
284                                         <para>Enables <emphasis>operator services</emphasis> mode.  This option only
285                                         works when bridging a DAHDI channel to another DAHDI channel
286                                         only. if specified on non-DAHDI interfaces, it will be ignored.
287                                         When the destination answers (presumably an operator services
288                                         station), the originator no longer has control of their line.
289                                         They may hang up, but the switch will not release their line
290                                         until the destination party (the operator) hangs up.</para>
291                                 </option>
292                                 <option name="p">
293                                         <para>This option enables screening mode. This is basically Privacy mode
294                                         without memory.</para>
295                                 </option>
296                                 <option name="P">
297                                         <argument name="x" />
298                                         <para>Enable privacy mode. Use <replaceable>x</replaceable> as the family/key in the AstDB database if
299                                         it is provided. The current extension is used if a database family/key is not specified.</para>
300                                 </option>
301                                 <option name="r">
302                                         <para>Indicate ringing to the calling party, even if the called party isn't actually ringing. Pass no audio to the calling
303                                         party until the called channel has answered.</para>
304                                 </option>
305                                 <option name="S">
306                                         <argument name="x" required="true" />
307                                         <para>Hang up the call <replaceable>x</replaceable> seconds <emphasis>after</emphasis> the called party has
308                                         answered the call.</para>
309                                 </option>
310                                 <option name="t">
311                                         <para>Allow the called party to transfer the calling party by sending the
312                                         DTMF sequence defined in <filename>features.conf</filename>.</para>
313                                 </option>
314                                 <option name="T">
315                                         <para>Allow the calling party to transfer the called party by sending the
316                                         DTMF sequence defined in <filename>features.conf</filename>.</para>
317                                 </option>
318                                 <option name="U" argsep="^">
319                                         <argument name="x" required="true">
320                                                 <para>Name of the subroutine to execute via Gosub</para>
321                                         </argument>
322                                         <argument name="arg" multiple="true" required="false">
323                                                 <para>Arguments for the Gosub routine</para>
324                                         </argument>
325                                         <para>Execute via Gosub the routine <replaceable>x</replaceable> for the <emphasis>called</emphasis> channel before connecting
326                                         to the calling channel. Arguments can be specified to the Gosub
327                                         using <literal>^</literal> as a delimiter. The Gosub routine can set the variable
328                                         <variable>GOSUB_RESULT</variable> to specify the following actions after the Gosub returns.</para>
329                                         <variablelist>
330                                                 <variable name="GOSUB_RESULT">
331                                                         <value name="ABORT">
332                                                                 Hangup both legs of the call.
333                                                         </value>
334                                                         <value name="CONGESTION">
335                                                                 Behave as if line congestion was encountered.
336                                                         </value>
337                                                         <value name="BUSY">
338                                                                 Behave as if a busy signal was encountered.
339                                                         </value>
340                                                         <value name="CONTINUE">
341                                                                 Hangup the called party and allow the calling party
342                                                                 to continue dialplan execution at the next priority.
343                                                         </value>
344                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
345                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
346                                                                 Transfer the call to the specified priority. Optionally, an extension, or
347                                                                 extension and priority can be specified.
348                                                         </value>
349                                                 </variable>
350                                         </variablelist>
351                                         <note>
352                                                 <para>You cannot use any additional action post answer options in conjunction
353                                                 with this option. Also, pbx services are not run on the peer (called) channel,
354                                                 so you will not be able to set timeouts via the TIMEOUT() function in this routine.</para>
355                                         </note>
356                                 </option>
357                                 <option name="w">
358                                         <para>Allow the called party to enable recording of the call by sending
359                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
360                                 </option>
361                                 <option name="W">
362                                         <para>Allow the calling party to enable recording of the call by sending
363                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
364                                 </option>
365                                 <option name="x">
366                                         <para>Allow the called party to enable recording of the call by sending
367                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
368                                 </option>
369                                 <option name="X">
370                                         <para>Allow the calling party to enable recording of the call by sending
371                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
372                                 </option>
373                                 </optionlist>
374                         </parameter>
375                         <parameter name="URL">
376                                 <para>The optional URL will be sent to the called party if the channel driver supports it.</para>
377                         </parameter>
378                 </syntax>
379                 <description>
380                         <para>This application will place calls to one or more specified channels. As soon
381                         as one of the requested channels answers, the originating channel will be
382                         answered, if it has not already been answered. These two channels will then
383                         be active in a bridged call. All other channels that were requested will then
384                         be hung up.</para>
385
386                         <para>Unless there is a timeout specified, the Dial application will wait
387                         indefinitely until one of the called channels answers, the user hangs up, or
388                         if all of the called channels are busy or unavailable. Dialplan executing will
389                         continue if no requested channels can be called, or if the timeout expires.
390                         This application will report normal termination if the originating channel
391                         hangs up, or if the call is bridged and either of the parties in the bridge
392                         ends the call.</para>
393                         <para>If the <variable>OUTBOUND_GROUP</variable> variable is set, all peer channels created by this
394                         application will be put into that group (as in Set(GROUP()=...).
395                         If the <variable>OUTBOUND_GROUP_ONCE</variable> variable is set, all peer channels created by this
396                         application will be put into that group (as in Set(GROUP()=...). Unlike OUTBOUND_GROUP,
397                         however, the variable will be unset after use.</para>
398
399                         <para>This application sets the following channel variables:</para>
400                         <variablelist>
401                                 <variable name="DIALEDTIME">
402                                         <para>This is the time from dialing a channel until when it is disconnected.</para>
403                                 </variable>
404                                 <variable name="ANSWEREDTIME">
405                                         <para>This is the amount of time for actual call.</para>
406                                 </variable>
407                                 <variable name="DIALSTATUS">
408                                         <para>This is the status of the call</para>
409                                         <value name="CHANUNAVAIL" />
410                                         <value name="CONGESTION" />
411                                         <value name="NOANSWER" />
412                                         <value name="BUSY" />
413                                         <value name="ANSWER" />
414                                         <value name="CANCEL" />
415                                         <value name="DONTCALL">
416                                                 For the Privacy and Screening Modes.
417                                                 Will be set if the called party chooses to send the calling party to the 'Go Away' script.
418                                         </value>
419                                         <value name="TORTURE">
420                                                 For the Privacy and Screening Modes.
421                                                 Will be set if the called party chooses to send the calling party to the 'torture' script.
422                                         </value>
423                                         <value name="INVALIDARGS" />
424                                 </variable>
425                         </variablelist>
426                 </description>
427         </application>
428         <application name="RetryDial" language="en_US">
429                 <synopsis>
430                         Place a call, retrying on failure allowing an optional exit extension.
431                 </synopsis>
432                 <syntax>
433                         <parameter name="announce" required="true">
434                                 <para>Filename of sound that will be played when no channel can be reached</para>
435                         </parameter>
436                         <parameter name="sleep" required="true">
437                                 <para>Number of seconds to wait after a dial attempt failed before a new attempt is made</para>
438                         </parameter>
439                         <parameter name="retries" required="true">
440                                 <para>Number of retries</para>
441                                 <para>When this is reached flow will continue at the next priority in the dialplan</para>
442                         </parameter>
443                         <parameter name="dialargs" required="true">
444                                 <para>Same format as arguments provided to the Dial application</para>
445                         </parameter>
446                 </syntax>
447                 <description>
448                         <para>This application will attempt to place a call using the normal Dial application.
449                         If no channel can be reached, the <replaceable>announce</replaceable> file will be played.
450                         Then, it will wait <replaceable>sleep</replaceable> number of seconds before retrying the call.
451                         After <replaceable>retries</replaceable> number of attempts, the calling channel will continue at the next priority in the dialplan.
452                         If the <replaceable>retries</replaceable> setting is set to 0, this application will retry endlessly.
453                         While waiting to retry a call, a 1 digit extension may be dialed. If that
454                         extension exists in either the context defined in <variable>EXITCONTEXT</variable> or the current
455                         one, The call will jump to that extension immediately.
456                         The <replaceable>dialargs</replaceable> are specified in the same format that arguments are provided
457                         to the Dial application.</para>
458                 </description>
459         </application>
460  ***/
461
462 static char *app = "Dial";
463 static char *rapp = "RetryDial";
464
465 enum {
466         OPT_ANNOUNCE =          (1 << 0),
467         OPT_RESETCDR =          (1 << 1),
468         OPT_DTMF_EXIT =         (1 << 2),
469         OPT_SENDDTMF =          (1 << 3),
470         OPT_FORCECLID =         (1 << 4),
471         OPT_GO_ON =             (1 << 5),
472         OPT_CALLEE_HANGUP =     (1 << 6),
473         OPT_CALLER_HANGUP =     (1 << 7),
474         OPT_ORIGINAL_CLID =     (1 << 8),
475         OPT_DURATION_LIMIT =    (1 << 9),
476         OPT_MUSICBACK =         (1 << 10),
477         OPT_CALLEE_MACRO =      (1 << 11),
478         OPT_SCREEN_NOINTRO =    (1 << 12),
479         OPT_SCREEN_NOCALLERID = (1 << 13),
480         OPT_IGNORE_CONNECTEDLINE = (1 << 14),
481         OPT_SCREENING =         (1 << 15),
482         OPT_PRIVACY =           (1 << 16),
483         OPT_RINGBACK =          (1 << 17),
484         OPT_DURATION_STOP =     (1 << 18),
485         OPT_CALLEE_TRANSFER =   (1 << 19),
486         OPT_CALLER_TRANSFER =   (1 << 20),
487         OPT_CALLEE_MONITOR =    (1 << 21),
488         OPT_CALLER_MONITOR =    (1 << 22),
489         OPT_GOTO =              (1 << 23),
490         OPT_OPERMODE =          (1 << 24),
491         OPT_CALLEE_PARK =       (1 << 25),
492         OPT_CALLER_PARK =       (1 << 26),
493         OPT_IGNORE_FORWARDING = (1 << 27),
494         OPT_CALLEE_GOSUB =      (1 << 28),
495         OPT_CALLEE_MIXMONITOR = (1 << 29),
496         OPT_CALLER_MIXMONITOR = (1 << 30),
497 };
498
499 #define DIAL_STILLGOING      (1 << 31)
500 #define DIAL_NOFORWARDHTML   ((uint64_t)1 << 32) /* flags are now 64 bits, so keep it up! */
501 #define DIAL_NOCONNECTEDLINE ((uint64_t)1 << 33)
502 #define OPT_CANCEL_ELSEWHERE ((uint64_t)1 << 34)
503 #define OPT_PEER_H           ((uint64_t)1 << 35)
504 #define OPT_CALLEE_GO_ON     ((uint64_t)1 << 36)
505
506 enum {
507         OPT_ARG_ANNOUNCE = 0,
508         OPT_ARG_SENDDTMF,
509         OPT_ARG_GOTO,
510         OPT_ARG_DURATION_LIMIT,
511         OPT_ARG_MUSICBACK,
512         OPT_ARG_CALLEE_MACRO,
513         OPT_ARG_CALLEE_GOSUB,
514         OPT_ARG_CALLEE_GO_ON,
515         OPT_ARG_PRIVACY,
516         OPT_ARG_DURATION_STOP,
517         OPT_ARG_OPERMODE,
518         /* note: this entry _MUST_ be the last one in the enum */
519         OPT_ARG_ARRAY_SIZE,
520 };
521
522 AST_APP_OPTIONS(dial_exec_options, BEGIN_OPTIONS
523         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
524         AST_APP_OPTION('C', OPT_RESETCDR),
525         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
526         AST_APP_OPTION('d', OPT_DTMF_EXIT),
527         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
528         AST_APP_OPTION('e', OPT_PEER_H),
529         AST_APP_OPTION('f', OPT_FORCECLID),
530         AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
531         AST_APP_OPTION('g', OPT_GO_ON),
532         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
533         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
534         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
535         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
536         AST_APP_OPTION('I', OPT_IGNORE_CONNECTEDLINE),
537         AST_APP_OPTION('k', OPT_CALLEE_PARK),
538         AST_APP_OPTION('K', OPT_CALLER_PARK),
539         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
540         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
541         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
542         AST_APP_OPTION('n', OPT_SCREEN_NOINTRO),
543         AST_APP_OPTION('N', OPT_SCREEN_NOCALLERID),
544         AST_APP_OPTION('o', OPT_ORIGINAL_CLID),
545         AST_APP_OPTION_ARG('O', OPT_OPERMODE, OPT_ARG_OPERMODE),
546         AST_APP_OPTION('p', OPT_SCREENING),
547         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
548         AST_APP_OPTION('r', OPT_RINGBACK),
549         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
550         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
551         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
552         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
553         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
554         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
555         AST_APP_OPTION('x', OPT_CALLEE_MIXMONITOR),
556         AST_APP_OPTION('X', OPT_CALLER_MIXMONITOR),
557 END_OPTIONS );
558
559 #define CAN_EARLY_BRIDGE(flags,chan,peer) (!ast_test_flag64(flags, OPT_CALLEE_HANGUP | \
560         OPT_CALLER_HANGUP | OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER | \
561         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR | OPT_CALLEE_PARK | OPT_CALLER_PARK) && \
562         !chan->audiohooks && !peer->audiohooks)
563
564 /*
565  * The list of active channels
566  */
567 struct chanlist {
568         struct chanlist *next;
569         struct ast_channel *chan;
570         uint64_t flags;
571         struct ast_party_connected_line connected;
572 };
573
574 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode);
575
576 static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception, int answered_elsewhere)
577 {
578         /* Hang up a tree of stuff */
579         struct chanlist *oo;
580         while (outgoing) {
581                 /* Hangup any existing lines we have open */
582                 if (outgoing->chan && (outgoing->chan != exception)) {
583                         if (answered_elsewhere) {
584                                 /* The flag is used for local channel inheritance and stuff */
585                                 ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
586                                 /* This is for the channel drivers */
587                                 outgoing->chan->hangupcause = AST_CAUSE_ANSWERED_ELSEWHERE;
588                         }
589                         ast_hangup(outgoing->chan);
590                 }
591                 oo = outgoing;
592                 outgoing = outgoing->next;
593                 ast_free(oo);
594         }
595 }
596
597 #define AST_MAX_WATCHERS 256
598
599 /*
600  * argument to handle_cause() and other functions.
601  */
602 struct cause_args {
603         struct ast_channel *chan;
604         int busy;
605         int congestion;
606         int nochan;
607 };
608
609 static void handle_cause(int cause, struct cause_args *num)
610 {
611         struct ast_cdr *cdr = num->chan->cdr;
612
613         switch(cause) {
614         case AST_CAUSE_BUSY:
615                 if (cdr)
616                         ast_cdr_busy(cdr);
617                 num->busy++;
618                 break;
619
620         case AST_CAUSE_CONGESTION:
621                 if (cdr)
622                         ast_cdr_failed(cdr);
623                 num->congestion++;
624                 break;
625
626         case AST_CAUSE_NO_ROUTE_DESTINATION:
627         case AST_CAUSE_UNREGISTERED:
628                 if (cdr)
629                         ast_cdr_failed(cdr);
630                 num->nochan++;
631                 break;
632
633         case AST_CAUSE_NORMAL_CLEARING:
634                 break;
635
636         default:
637                 num->nochan++;
638                 break;
639         }
640 }
641
642 /* free the buffer if allocated, and set the pointer to the second arg */
643 #define S_REPLACE(s, new_val)           \
644         do {                            \
645                 if (s)                  \
646                         ast_free(s);    \
647                 s = (new_val);          \
648         } while (0)
649
650 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
651 {
652         char rexten[2] = { exten, '\0' };
653
654         if (context) {
655                 if (!ast_goto_if_exists(chan, context, rexten, pri))
656                         return 1;
657         } else {
658                 if (!ast_goto_if_exists(chan, chan->context, rexten, pri))
659                         return 1;
660                 else if (!ast_strlen_zero(chan->macrocontext)) {
661                         if (!ast_goto_if_exists(chan, chan->macrocontext, rexten, pri))
662                                 return 1;
663                 }
664         }
665         return 0;
666 }
667
668 /* do not call with chan lock held */
669 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
670 {
671         const char *context;
672         const char *exten;
673
674         ast_channel_lock(chan);
675         context = ast_strdupa(S_OR(chan->macrocontext, chan->context));
676         exten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
677         ast_channel_unlock(chan);
678
679         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
680 }
681
682 static void senddialevent(struct ast_channel *src, struct ast_channel *dst, const char *dialstring)
683 {
684         manager_event(EVENT_FLAG_CALL, "Dial",
685                 "SubEvent: Begin\r\n"
686                 "Channel: %s\r\n"
687                 "Destination: %s\r\n"
688                 "CallerIDNum: %s\r\n"
689                 "CallerIDName: %s\r\n"
690                 "UniqueID: %s\r\n"
691                 "DestUniqueID: %s\r\n"
692                 "Dialstring: %s\r\n",
693                 src->name, dst->name, S_OR(src->cid.cid_num, "<unknown>"),
694                 S_OR(src->cid.cid_name, "<unknown>"), src->uniqueid,
695                 dst->uniqueid, dialstring ? dialstring : "");
696 }
697
698 static void senddialendevent(const struct ast_channel *src, const char *dialstatus)
699 {
700         manager_event(EVENT_FLAG_CALL, "Dial",
701                 "SubEvent: End\r\n"
702                 "Channel: %s\r\n"
703                 "UniqueID: %s\r\n"
704                 "DialStatus: %s\r\n",
705                 src->name, src->uniqueid, dialstatus);
706 }
707
708 /*!
709  * helper function for wait_for_answer()
710  *
711  * XXX this code is highly suspicious, as it essentially overwrites
712  * the outgoing channel without properly deleting it.
713  */
714 static void do_forward(struct chanlist *o,
715         struct cause_args *num, struct ast_flags64 *peerflags, int single)
716 {
717         char tmpchan[256];
718         struct ast_channel *original = o->chan;
719         struct ast_channel *c = o->chan; /* the winner */
720         struct ast_channel *in = num->chan; /* the input channel */
721         struct ast_party_redirecting *apr = &o->chan->redirecting;
722         struct ast_party_connected_line *apc = &o->chan->connected;
723         char *stuff;
724         char *tech;
725         int cause;
726
727         ast_copy_string(tmpchan, c->call_forward, sizeof(tmpchan));
728         if ((stuff = strchr(tmpchan, '/'))) {
729                 *stuff++ = '\0';
730                 tech = tmpchan;
731         } else {
732                 const char *forward_context;
733                 ast_channel_lock(c);
734                 forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
735                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", c->call_forward, forward_context ? forward_context : c->context);
736                 ast_channel_unlock(c);
737                 stuff = tmpchan;
738                 tech = "Local";
739         }
740         /* Before processing channel, go ahead and check for forwarding */
741         ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", in->name, tech, stuff, c->name);
742         /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
743         if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
744                 ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", in->name, tech, stuff);
745                 c = o->chan = NULL;
746                 cause = AST_CAUSE_BUSY;
747         } else {
748                 /* Setup parameters */
749                 c = o->chan = ast_request(tech, in->nativeformats, stuff, &cause);
750                 if (c) {
751                         if (single)
752                                 ast_channel_make_compatible(o->chan, in);
753                         ast_channel_inherit_variables(in, o->chan);
754                         ast_channel_datastore_inherit(in, o->chan);
755                 } else
756                         ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
757         }
758         if (!c) {
759                 ast_clear_flag64(o, DIAL_STILLGOING);
760                 handle_cause(cause, num);
761                 ast_hangup(original);
762         } else {
763                 if (single) {
764                         ast_rtp_instance_early_bridge_make_compatible(c, in);
765                 }
766
767                 c->cdrflags = in->cdrflags;
768
769                 ast_channel_set_redirecting(c, apr);
770                 ast_channel_lock(c);
771                 while (ast_channel_trylock(in)) {
772                         CHANNEL_DEADLOCK_AVOIDANCE(c);
773                 }
774                 S_REPLACE(c->cid.cid_rdnis, ast_strdup(S_OR(original->cid.cid_rdnis, S_OR(in->macroexten, in->exten))));
775
776                 c->cid.cid_tns = in->cid.cid_tns;
777
778                 if (ast_test_flag64(o, OPT_FORCECLID)) {
779                         S_REPLACE(c->cid.cid_num, ast_strdupa(S_OR(in->macroexten, in->exten)));
780                         S_REPLACE(c->cid.cid_name, NULL);
781                         ast_string_field_set(c, accountcode, c->accountcode);
782                 } else {
783                         ast_party_caller_copy(&c->cid, &in->cid);
784                         ast_string_field_set(c, accountcode, in->accountcode);
785                 }
786                 ast_party_connected_line_copy(&c->connected, apc);
787
788                 S_REPLACE(in->cid.cid_rdnis, ast_strdup(c->cid.cid_rdnis));
789                 ast_channel_update_redirecting(in, apr);
790
791                 ast_clear_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE);
792
793                 ast_channel_unlock(in);
794                 ast_channel_unlock(c);
795
796                 if (ast_call(c, tmpchan, 0)) {
797                         ast_log(LOG_NOTICE, "Failed to dial on local channel for call forward to '%s'\n", tmpchan);
798                         ast_clear_flag64(o, DIAL_STILLGOING);
799                         ast_hangup(original);
800                         ast_hangup(c);
801                         c = o->chan = NULL;
802                         num->nochan++;
803                 } else {
804                         ast_channel_lock(c);
805                         while (ast_channel_trylock(in)) {
806                                 CHANNEL_DEADLOCK_AVOIDANCE(c);
807                         }
808                         senddialevent(in, c, stuff);
809                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
810                                 char cidname[AST_MAX_EXTENSION] = "";
811                                 const char *tmpexten;
812                                 tmpexten = ast_strdupa(S_OR(in->macroexten, in->exten));
813                                 ast_channel_unlock(in);
814                                 ast_channel_unlock(c);
815                                 ast_set_callerid(c, tmpexten, get_cid_name(cidname, sizeof(cidname), in), NULL);
816                         } else {
817                                 ast_channel_unlock(in);
818                                 ast_channel_unlock(c);
819                         }
820                         /* Hangup the original channel now, in case we needed it */
821                         ast_hangup(original);
822                 }
823                 if (single) {
824                         ast_indicate(in, -1);
825                 }
826         }
827 }
828
829 /* argument used for some functions. */
830 struct privacy_args {
831         int sentringing;
832         int privdb_val;
833         char privcid[256];
834         char privintro[1024];
835         char status[256];
836 };
837
838 static struct ast_channel *wait_for_answer(struct ast_channel *in,
839         struct chanlist *outgoing, int *to, struct ast_flags64 *peerflags,
840         struct privacy_args *pa,
841         const struct cause_args *num_in, int *result, char *dtmf_progress)
842 {
843         struct cause_args num = *num_in;
844         int prestart = num.busy + num.congestion + num.nochan;
845         int orig = *to;
846         struct ast_channel *peer = NULL;
847         /* single is set if only one destination is enabled */
848         int single = outgoing && !outgoing->next;
849 #ifdef HAVE_EPOLL
850         struct chanlist *epollo;
851 #endif
852         struct ast_party_connected_line connected_caller;
853         struct ast_str *featurecode = ast_str_alloca(FEATURE_MAX_LEN + 1);
854         if (single) {
855                 /* Turn off hold music, etc */
856                 if (!ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK))
857                         ast_deactivate_generator(in);
858
859                 /* If we are calling a single channel, make them compatible for in-band tone purpose */
860                 ast_channel_make_compatible(outgoing->chan, in);
861
862                 if (!ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE) && !ast_test_flag64(outgoing, DIAL_NOCONNECTEDLINE)) {
863                         ast_channel_lock(outgoing->chan);
864                         ast_connected_line_copy_from_caller(&connected_caller, &outgoing->chan->cid);
865                         ast_channel_unlock(outgoing->chan);
866                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
867                         ast_channel_update_connected_line(in, &connected_caller);
868                         ast_party_connected_line_free(&connected_caller);
869                 }
870         }
871
872 #ifdef HAVE_EPOLL
873         for (epollo = outgoing; epollo; epollo = epollo->next)
874                 ast_poll_channel_add(in, epollo->chan);
875 #endif
876
877         while (*to && !peer) {
878                 struct chanlist *o;
879                 int pos = 0; /* how many channels do we handle */
880                 int numlines = prestart;
881                 struct ast_channel *winner;
882                 struct ast_channel *watchers[AST_MAX_WATCHERS];
883
884                 watchers[pos++] = in;
885                 for (o = outgoing; o; o = o->next) {
886                         /* Keep track of important channels */
887                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
888                                 watchers[pos++] = o->chan;
889                         numlines++;
890                 }
891                 if (pos == 1) { /* only the input channel is available */
892                         if (numlines == (num.busy + num.congestion + num.nochan)) {
893                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
894                                 if (num.busy)
895                                         strcpy(pa->status, "BUSY");
896                                 else if (num.congestion)
897                                         strcpy(pa->status, "CONGESTION");
898                                 else if (num.nochan)
899                                         strcpy(pa->status, "CHANUNAVAIL");
900                         } else {
901                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
902                         }
903                         *to = 0;
904                         return NULL;
905                 }
906                 winner = ast_waitfor_n(watchers, pos, to);
907                 for (o = outgoing; o; o = o->next) {
908                         struct ast_frame *f;
909                         struct ast_channel *c = o->chan;
910
911                         if (c == NULL)
912                                 continue;
913                         if (ast_test_flag64(o, DIAL_STILLGOING) && c->_state == AST_STATE_UP) {
914                                 if (!peer) {
915                                         ast_verb(3, "%s answered %s\n", c->name, in->name);
916                                         if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
917                                                 if (o->connected.id.number) {
918                                                         ast_channel_update_connected_line(in, &o->connected);
919                                                 } else if (!ast_test_flag64(o, DIAL_NOCONNECTEDLINE)) {
920                                                         ast_channel_lock(c);
921                                                         ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
922                                                         ast_channel_unlock(c);
923                                                         connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
924                                                         ast_channel_update_connected_line(in, &connected_caller);
925                                                         ast_party_connected_line_free(&connected_caller);
926                                                 }
927                                         }
928                                         peer = c;
929                                         ast_copy_flags64(peerflags, o,
930                                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
931                                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
932                                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
933                                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
934                                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
935                                                 DIAL_NOFORWARDHTML);
936                                         ast_string_field_set(c, dialcontext, "");
937                                         ast_copy_string(c->exten, "", sizeof(c->exten));
938                                 }
939                                 continue;
940                         }
941                         if (c != winner)
942                                 continue;
943                         /* here, o->chan == c == winner */
944                         if (!ast_strlen_zero(c->call_forward)) {
945                                 do_forward(o, &num, peerflags, single);
946                                 continue;
947                         }
948                         f = ast_read(winner);
949                         if (!f) {
950                                 in->hangupcause = c->hangupcause;
951 #ifdef HAVE_EPOLL
952                                 ast_poll_channel_del(in, c);
953 #endif
954                                 ast_hangup(c);
955                                 c = o->chan = NULL;
956                                 ast_clear_flag64(o, DIAL_STILLGOING);
957                                 handle_cause(in->hangupcause, &num);
958                                 continue;
959                         }
960                         if (f->frametype == AST_FRAME_CONTROL) {
961                                 switch(f->subclass) {
962                                 case AST_CONTROL_ANSWER:
963                                         /* This is our guy if someone answered. */
964                                         if (!peer) {
965                                                 ast_verb(3, "%s answered %s\n", c->name, in->name);
966                                                 if (!single && !ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
967                                                         if (o->connected.id.number) {
968                                                                 ast_channel_update_connected_line(in, &o->connected);
969                                                         } else if (!ast_test_flag64(o, DIAL_NOCONNECTEDLINE)) {
970                                                                 ast_channel_lock(c);
971                                                                 ast_connected_line_copy_from_caller(&connected_caller, &c->cid);
972                                                                 ast_channel_unlock(c);
973                                                                 connected_caller.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
974                                                                 ast_channel_update_connected_line(in, &connected_caller);
975                                                                 ast_party_connected_line_free(&connected_caller);
976                                                         }
977                                                 }
978                                                 peer = c;
979                                                 if (peer->cdr) {
980                                                         peer->cdr->answer = ast_tvnow();
981                                                         peer->cdr->disposition = AST_CDR_ANSWERED;
982                                                 }
983                                                 ast_copy_flags64(peerflags, o,
984                                                         OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
985                                                         OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
986                                                         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
987                                                         OPT_CALLEE_PARK | OPT_CALLER_PARK |
988                                                         OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
989                                                         DIAL_NOFORWARDHTML);
990                                                 ast_string_field_set(c, dialcontext, "");
991                                                 ast_copy_string(c->exten, "", sizeof(c->exten));
992                                                 if (CAN_EARLY_BRIDGE(peerflags, in, peer))
993                                                         /* Setup early bridge if appropriate */
994                                                         ast_channel_early_bridge(in, peer);
995                                         }
996                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
997                                         in->hangupcause = AST_CAUSE_NORMAL_CLEARING;
998                                         c->hangupcause = AST_CAUSE_NORMAL_CLEARING;
999                                         break;
1000                                 case AST_CONTROL_BUSY:
1001                                         ast_verb(3, "%s is busy\n", c->name);
1002                                         in->hangupcause = c->hangupcause;
1003                                         ast_hangup(c);
1004                                         c = o->chan = NULL;
1005                                         ast_clear_flag64(o, DIAL_STILLGOING);
1006                                         handle_cause(AST_CAUSE_BUSY, &num);
1007                                         break;
1008                                 case AST_CONTROL_CONGESTION:
1009                                         ast_verb(3, "%s is circuit-busy\n", c->name);
1010                                         in->hangupcause = c->hangupcause;
1011                                         ast_hangup(c);
1012                                         c = o->chan = NULL;
1013                                         ast_clear_flag64(o, DIAL_STILLGOING);
1014                                         handle_cause(AST_CAUSE_CONGESTION, &num);
1015                                         break;
1016                                 case AST_CONTROL_RINGING:
1017                                         ast_verb(3, "%s is ringing\n", c->name);
1018                                         /* Setup early media if appropriate */
1019                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1020                                                 ast_channel_early_bridge(in, c);
1021                                         if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK)) {
1022                                                 ast_indicate(in, AST_CONTROL_RINGING);
1023                                                 pa->sentringing++;
1024                                         }
1025                                         break;
1026                                 case AST_CONTROL_PROGRESS:
1027                                         ast_verb(3, "%s is making progress passing it to %s\n", c->name, in->name);
1028                                         /* Setup early media if appropriate */
1029                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1030                                                 ast_channel_early_bridge(in, c);
1031                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1032                                                 ast_indicate(in, AST_CONTROL_PROGRESS);
1033                                                 if(!ast_strlen_zero(dtmf_progress)) {
1034                                                         ast_verb(3, "Sending DTMF '%s' to the called party as result of receiving a PROGRESS message.\n", dtmf_progress);
1035                                                         ast_dtmf_stream(c, in, dtmf_progress, 250, 0);
1036                                                 }
1037                                         break;
1038                                 case AST_CONTROL_VIDUPDATE:
1039                                         ast_verb(3, "%s requested a video update, passing it to %s\n", c->name, in->name);
1040                                         ast_indicate(in, AST_CONTROL_VIDUPDATE);
1041                                         break;
1042                                 case AST_CONTROL_SRCUPDATE:
1043                                         ast_verb(3, "%s requested a source update, passing it to %s\n", c->name, in->name);
1044                                         ast_indicate(in, AST_CONTROL_SRCUPDATE);
1045                                         break;
1046                                 case AST_CONTROL_CONNECTED_LINE:
1047                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1048                                                 ast_verb(3, "Connected line update to %s prevented.\n", in->name);
1049                                         } else if (!single) {
1050                                                 struct ast_party_connected_line connected;
1051                                                 ast_verb(3, "%s connected line has changed. Saving it until answer for %s\n", c->name, in->name);
1052                                                 ast_party_connected_line_set_init(&connected, &o->connected);
1053                                                 ast_connected_line_parse_data(f->data.ptr, f->datalen, &connected);
1054                                                 ast_party_connected_line_set(&o->connected, &connected);
1055                                                 ast_party_connected_line_free(&connected);
1056                                         } else {
1057                                                 ast_verb(3, "%s connected line has changed, passing it to %s\n", c->name, in->name);
1058                                                 ast_indicate_data(in, AST_CONTROL_CONNECTED_LINE, f->data.ptr, f->datalen);
1059                                         }
1060                                         break;
1061                                 case AST_CONTROL_REDIRECTING:
1062                                         if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
1063                                                 ast_verb(3, "Redirecting update to %s prevented.\n", in->name);
1064                                         } else {
1065                                                 ast_verb(3, "%s redirecting info has changed, passing it to %s\n", c->name, in->name);
1066                                                 ast_indicate_data(in, AST_CONTROL_REDIRECTING, f->data.ptr, f->datalen);
1067                                         }
1068                                         break;
1069                                 case AST_CONTROL_PROCEEDING:
1070                                         ast_verb(3, "%s is proceeding passing it to %s\n", c->name, in->name);
1071                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
1072                                                 ast_channel_early_bridge(in, c);
1073                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
1074                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
1075                                         break;
1076                                 case AST_CONTROL_HOLD:
1077                                         ast_verb(3, "Call on %s placed on hold\n", c->name);
1078                                         ast_indicate(in, AST_CONTROL_HOLD);
1079                                         break;
1080                                 case AST_CONTROL_UNHOLD:
1081                                         ast_verb(3, "Call on %s left from hold\n", c->name);
1082                                         ast_indicate(in, AST_CONTROL_UNHOLD);
1083                                         break;
1084                                 case AST_CONTROL_OFFHOOK:
1085                                 case AST_CONTROL_FLASH:
1086                                         /* Ignore going off hook and flash */
1087                                         break;
1088                                 case -1:
1089                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK | OPT_MUSICBACK)) {
1090                                                 ast_verb(3, "%s stopped sounds\n", c->name);
1091                                                 ast_indicate(in, -1);
1092                                                 pa->sentringing = 0;
1093                                         }
1094                                         break;
1095                                 default:
1096                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass);
1097                                 }
1098                         } else if (single) {
1099                                 switch (f->frametype) {
1100                                         case AST_FRAME_VOICE:
1101                                         case AST_FRAME_IMAGE:
1102                                         case AST_FRAME_TEXT:
1103                                                 if (ast_write(in, f)) {
1104                                                         ast_log(LOG_WARNING, "Unable to write frame\n");
1105                                                 }
1106                                                 break;
1107                                         case AST_FRAME_HTML:
1108                                                 if (!ast_test_flag64(outgoing, DIAL_NOFORWARDHTML) && ast_channel_sendhtml(in, f->subclass, f->data.ptr, f->datalen) == -1) {
1109                                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1110                                                 }
1111                                                 break;
1112                                         default:
1113                                                 break;
1114                                 }
1115                         }
1116                         ast_frfree(f);
1117                 } /* end for */
1118                 if (winner == in) {
1119                         struct ast_frame *f = ast_read(in);
1120 #if 0
1121                         if (f && (f->frametype != AST_FRAME_VOICE))
1122                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
1123                         else if (!f || (f->frametype != AST_FRAME_VOICE))
1124                                 printf("Hangup received on %s\n", in->name);
1125 #endif
1126                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP))) {
1127                                 /* Got hung up */
1128                                 *to = -1;
1129                                 strcpy(pa->status, "CANCEL");
1130                                 ast_cdr_noanswer(in->cdr);
1131                                 if (f) {
1132                                         if (f->data.uint32) {
1133                                                 in->hangupcause = f->data.uint32;
1134                                         }
1135                                         ast_frfree(f);
1136                                 }
1137                                 return NULL;
1138                         }
1139
1140                         /* now f is guaranteed non-NULL */
1141                         if (f->frametype == AST_FRAME_DTMF) {
1142                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
1143                                         const char *context;
1144                                         ast_channel_lock(in);
1145                                         context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
1146                                         if (onedigit_goto(in, context, (char) f->subclass, 1)) {
1147                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass);
1148                                                 *to = 0;
1149                                                 ast_cdr_noanswer(in->cdr);
1150                                                 *result = f->subclass;
1151                                                 strcpy(pa->status, "CANCEL");
1152                                                 ast_frfree(f);
1153                                                 ast_channel_unlock(in);
1154                                                 return NULL;
1155                                         }
1156                                         ast_channel_unlock(in);
1157                                 }
1158
1159                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) &&
1160                                         detect_disconnect(in, f->subclass, featurecode)) {
1161                                         ast_verb(3, "User requested call disconnect.\n");
1162                                         *to = 0;
1163                                         strcpy(pa->status, "CANCEL");
1164                                         ast_cdr_noanswer(in->cdr);
1165                                         ast_frfree(f);
1166                                         return NULL;
1167                                 }
1168                         }
1169
1170                         /* Forward HTML stuff */
1171                         if (single && (f->frametype == AST_FRAME_HTML) && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML))
1172                                 if (ast_channel_sendhtml(outgoing->chan, f->subclass, f->data.ptr, f->datalen) == -1)
1173                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1174
1175                         if (single && ((f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_DTMF_BEGIN) || (f->frametype == AST_FRAME_DTMF_END)))  {
1176                                 if (ast_write(outgoing->chan, f))
1177                                         ast_log(LOG_WARNING, "Unable to forward voice or dtmf\n");
1178                         }
1179                         if (single && (f->frametype == AST_FRAME_CONTROL) &&
1180                                 ((f->subclass == AST_CONTROL_HOLD) ||
1181                                 (f->subclass == AST_CONTROL_UNHOLD) ||
1182                                 (f->subclass == AST_CONTROL_VIDUPDATE) ||
1183                                 (f->subclass == AST_CONTROL_SRCUPDATE) ||
1184                                 (f->subclass == AST_CONTROL_CONNECTED_LINE) ||
1185                                 (f->subclass == AST_CONTROL_REDIRECTING))) {
1186                                 ast_verb(3, "%s requested special control %d, passing it to %s\n", in->name, f->subclass, outgoing->chan->name);
1187                                 ast_indicate_data(outgoing->chan, f->subclass, f->data.ptr, f->datalen);
1188                         }
1189                         ast_frfree(f);
1190                 }
1191                 if (!*to)
1192                         ast_verb(3, "Nobody picked up in %d ms\n", orig);
1193                 if (!*to || ast_check_hangup(in))
1194                         ast_cdr_noanswer(in->cdr);
1195         }
1196
1197 #ifdef HAVE_EPOLL
1198         for (epollo = outgoing; epollo; epollo = epollo->next) {
1199                 if (epollo->chan)
1200                         ast_poll_channel_del(in, epollo->chan);
1201         }
1202 #endif
1203
1204         return peer;
1205 }
1206
1207 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode)
1208 {
1209         struct ast_flags features = { AST_FEATURE_DISCONNECT }; /* only concerned with disconnect feature */
1210         struct ast_call_feature feature = { 0, };
1211         int res;
1212
1213         ast_str_append(&featurecode, 1, "%c", code);
1214
1215         res = ast_feature_detect(chan, &features, ast_str_buffer(featurecode), &feature);
1216
1217         if (res != AST_FEATURE_RETURN_STOREDIGITS) {
1218                 ast_str_reset(featurecode);
1219         }
1220         if (feature.feature_mask & AST_FEATURE_DISCONNECT) {
1221                 return 1;
1222         }
1223
1224         return 0;
1225 }
1226
1227 static void replace_macro_delimiter(char *s)
1228 {
1229         for (; *s; s++)
1230                 if (*s == '^')
1231                         *s = ',';
1232 }
1233
1234 /* returns true if there is a valid privacy reply */
1235 static int valid_priv_reply(struct ast_flags64 *opts, int res)
1236 {
1237         if (res < '1')
1238                 return 0;
1239         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
1240                 return 1;
1241         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
1242                 return 1;
1243         return 0;
1244 }
1245
1246 static int do_timelimit(struct ast_channel *chan, struct ast_bridge_config *config,
1247         char *parse, struct timeval *calldurationlimit)
1248 {
1249         char *stringp = ast_strdupa(parse);
1250         char *limit_str, *warning_str, *warnfreq_str;
1251         const char *var;
1252         int play_to_caller = 0, play_to_callee = 0;
1253         int delta;
1254
1255         limit_str = strsep(&stringp, ":");
1256         warning_str = strsep(&stringp, ":");
1257         warnfreq_str = strsep(&stringp, ":");
1258
1259         config->timelimit = atol(limit_str);
1260         if (warning_str)
1261                 config->play_warning = atol(warning_str);
1262         if (warnfreq_str)
1263                 config->warning_freq = atol(warnfreq_str);
1264
1265         if (!config->timelimit) {
1266                 ast_log(LOG_WARNING, "Dial does not accept L(%s), hanging up.\n", limit_str);
1267                 config->timelimit = config->play_warning = config->warning_freq = 0;
1268                 config->warning_sound = NULL;
1269                 return -1; /* error */
1270         } else if ( (delta = config->play_warning - config->timelimit) > 0) {
1271                 int w = config->warning_freq;
1272
1273                 /* If the first warning is requested _after_ the entire call would end,
1274                    and no warning frequency is requested, then turn off the warning. If
1275                    a warning frequency is requested, reduce the 'first warning' time by
1276                    that frequency until it falls within the call's total time limit.
1277                    Graphically:
1278                                   timelim->|    delta        |<-playwarning
1279                         0__________________|_________________|
1280                                          | w  |    |    |    |
1281
1282                    so the number of intervals to cut is 1+(delta-1)/w
1283                 */
1284
1285                 if (w == 0) {
1286                         config->play_warning = 0;
1287                 } else {
1288                         config->play_warning -= w * ( 1 + (delta-1)/w );
1289                         if (config->play_warning < 1)
1290                                 config->play_warning = config->warning_freq = 0;
1291                 }
1292         }
1293         
1294         ast_channel_lock(chan);
1295
1296         var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLER");
1297
1298         play_to_caller = var ? ast_true(var) : 1;
1299
1300         var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLEE");
1301         play_to_callee = var ? ast_true(var) : 0;
1302
1303         if (!play_to_caller && !play_to_callee)
1304                 play_to_caller = 1;
1305
1306         var = pbx_builtin_getvar_helper(chan, "LIMIT_WARNING_FILE");
1307         config->warning_sound = !ast_strlen_zero(var) ? ast_strdup(var) : ast_strdup("timeleft");
1308
1309         /* The code looking at config wants a NULL, not just "", to decide
1310          * that the message should not be played, so we replace "" with NULL.
1311          * Note, pbx_builtin_getvar_helper _can_ return NULL if the variable is
1312          * not found.
1313          */
1314
1315         var = pbx_builtin_getvar_helper(chan, "LIMIT_TIMEOUT_FILE");
1316         config->end_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
1317
1318         var = pbx_builtin_getvar_helper(chan, "LIMIT_CONNECT_FILE");
1319         config->start_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
1320
1321         ast_channel_unlock(chan);
1322
1323         /* undo effect of S(x) in case they are both used */
1324         calldurationlimit->tv_sec = 0;
1325         calldurationlimit->tv_usec = 0;
1326
1327         /* more efficient to do it like S(x) does since no advanced opts */
1328         if (!config->play_warning && !config->start_sound && !config->end_sound && config->timelimit) {
1329                 calldurationlimit->tv_sec = config->timelimit / 1000;
1330                 calldurationlimit->tv_usec = (config->timelimit % 1000) * 1000;
1331                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n",
1332                         calldurationlimit->tv_sec + calldurationlimit->tv_usec / 1000000.0);
1333                 config->timelimit = play_to_caller = play_to_callee =
1334                 config->play_warning = config->warning_freq = 0;
1335         } else {
1336                 ast_verb(3, "Limit Data for this call:\n");
1337                 ast_verb(4, "timelimit      = %ld\n", config->timelimit);
1338                 ast_verb(4, "play_warning   = %ld\n", config->play_warning);
1339                 ast_verb(4, "play_to_caller = %s\n", play_to_caller ? "yes" : "no");
1340                 ast_verb(4, "play_to_callee = %s\n", play_to_callee ? "yes" : "no");
1341                 ast_verb(4, "warning_freq   = %ld\n", config->warning_freq);
1342                 ast_verb(4, "start_sound    = %s\n", S_OR(config->start_sound, ""));
1343                 ast_verb(4, "warning_sound  = %s\n", config->warning_sound);
1344                 ast_verb(4, "end_sound      = %s\n", S_OR(config->end_sound, ""));
1345         }
1346         if (play_to_caller)
1347                 ast_set_flag(&(config->features_caller), AST_FEATURE_PLAY_WARNING);
1348         if (play_to_callee)
1349                 ast_set_flag(&(config->features_callee), AST_FEATURE_PLAY_WARNING);
1350         return 0;
1351 }
1352
1353 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
1354         struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
1355 {
1356
1357         int res2;
1358         int loopcount = 0;
1359
1360         /* Get the user's intro, store it in priv-callerintros/$CID,
1361            unless it is already there-- this should be done before the
1362            call is actually dialed  */
1363
1364         /* all ring indications and moh for the caller has been halted as soon as the
1365            target extension was picked up. We are going to have to kill some
1366            time and make the caller believe the peer hasn't picked up yet */
1367
1368         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1369                 char *original_moh = ast_strdupa(chan->musicclass);
1370                 ast_indicate(chan, -1);
1371                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1372                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1373                 ast_string_field_set(chan, musicclass, original_moh);
1374         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1375                 ast_indicate(chan, AST_CONTROL_RINGING);
1376                 pa->sentringing++;
1377         }
1378
1379         /* Start autoservice on the other chan ?? */
1380         res2 = ast_autoservice_start(chan);
1381         /* Now Stream the File */
1382         for (loopcount = 0; loopcount < 3; loopcount++) {
1383                 if (res2 && loopcount == 0) /* error in ast_autoservice_start() */
1384                         break;
1385                 if (!res2) /* on timeout, play the message again */
1386                         res2 = ast_play_and_wait(peer, "priv-callpending");
1387                 if (!valid_priv_reply(opts, res2))
1388                         res2 = 0;
1389                 /* priv-callpending script:
1390                    "I have a caller waiting, who introduces themselves as:"
1391                 */
1392                 if (!res2)
1393                         res2 = ast_play_and_wait(peer, pa->privintro);
1394                 if (!valid_priv_reply(opts, res2))
1395                         res2 = 0;
1396                 /* now get input from the called party, as to their choice */
1397                 if (!res2) {
1398                         /* XXX can we have both, or they are mutually exclusive ? */
1399                         if (ast_test_flag64(opts, OPT_PRIVACY))
1400                                 res2 = ast_play_and_wait(peer, "priv-callee-options");
1401                         if (ast_test_flag64(opts, OPT_SCREENING))
1402                                 res2 = ast_play_and_wait(peer, "screen-callee-options");
1403                 }
1404                 /*! \page DialPrivacy Dial Privacy scripts
1405                 \par priv-callee-options script:
1406                         "Dial 1 if you wish this caller to reach you directly in the future,
1407                                 and immediately connect to their incoming call
1408                          Dial 2 if you wish to send this caller to voicemail now and
1409                                 forevermore.
1410                          Dial 3 to send this caller to the torture menus, now and forevermore.
1411                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1412                          Dial 5 to allow this caller to come straight thru to you in the future,
1413                                 but right now, just this once, send them to voicemail."
1414                 \par screen-callee-options script:
1415                         "Dial 1 if you wish to immediately connect to the incoming call
1416                          Dial 2 if you wish to send this caller to voicemail.
1417                          Dial 3 to send this caller to the torture menus.
1418                          Dial 4 to send this caller to a simple "go away" menu.
1419                 */
1420                 if (valid_priv_reply(opts, res2))
1421                         break;
1422                 /* invalid option */
1423                 res2 = ast_play_and_wait(peer, "vm-sorry");
1424         }
1425
1426         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1427                 ast_moh_stop(chan);
1428         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1429                 ast_indicate(chan, -1);
1430                 pa->sentringing = 0;
1431         }
1432         ast_autoservice_stop(chan);
1433         if (ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1434                 /* map keypresses to various things, the index is res2 - '1' */
1435                 static const char *_val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1436                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1437                 int i = res2 - '1';
1438                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1439                         opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1440                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1441         }
1442         switch (res2) {
1443         case '1':
1444                 break;
1445         case '2':
1446                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1447                 break;
1448         case '3':
1449                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1450                 break;
1451         case '4':
1452                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1453                 break;
1454         case '5':
1455                 /* XXX should we set status to DENY ? */
1456                 if (ast_test_flag64(opts, OPT_PRIVACY))
1457                         break;
1458                 /* if not privacy, then 5 is the same as "default" case */
1459         default: /* bad input or -1 if failure to start autoservice */
1460                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1461                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1462                           or,... put 'em thru to voicemail. */
1463                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1464                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1465                 /* XXX should we set status to DENY ? */
1466                 /* XXX what about the privacy flags ? */
1467                 break;
1468         }
1469
1470         if (res2 == '1') { /* the only case where we actually connect */
1471                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll
1472                    just clog things up, and it's not useful information, not being tied to a CID */
1473                 if (strncmp(pa->privcid, "NOCALLERID", 10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO)) {
1474                         ast_filedelete(pa->privintro, NULL);
1475                         if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1476                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1477                         else
1478                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1479                 }
1480                 return 0; /* the good exit path */
1481         } else {
1482                 ast_hangup(peer); /* hang up on the callee -- he didn't want to talk anyway! */
1483                 return -1;
1484         }
1485 }
1486
1487 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1488 static int setup_privacy_args(struct privacy_args *pa,
1489         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1490 {
1491         char callerid[60];
1492         int res;
1493         char *l;
1494         int silencethreshold;
1495
1496         if (!ast_strlen_zero(chan->cid.cid_num)) {
1497                 l = ast_strdupa(chan->cid.cid_num);
1498                 ast_shrink_phone_number(l);
1499                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1500                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n", opt_args[OPT_ARG_PRIVACY], l);
1501                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1502                 } else {
1503                         ast_verb(3, "Privacy Screening, clid is '%s'\n", l);
1504                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1505                 }
1506         } else {
1507                 char *tnam, *tn2;
1508
1509                 tnam = ast_strdupa(chan->name);
1510                 /* clean the channel name so slashes don't try to end up in disk file name */
1511                 for (tn2 = tnam; *tn2; tn2++) {
1512                         if (*tn2 == '/')  /* any other chars to be afraid of? */
1513                                 *tn2 = '=';
1514                 }
1515                 ast_verb(3, "Privacy-- callerid is empty\n");
1516
1517                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", chan->exten, tnam);
1518                 l = callerid;
1519                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1520         }
1521
1522         ast_copy_string(pa->privcid, l, sizeof(pa->privcid));
1523
1524         if (strncmp(pa->privcid, "NOCALLERID", 10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCALLERID)) {
1525                 /* if callerid is set and OPT_SCREEN_NOCALLERID is set also */
1526                 ast_verb(3, "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1527                 pa->privdb_val = AST_PRIVACY_ALLOW;
1528         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCALLERID) && strncmp(pa->privcid, "NOCALLERID", 10) == 0) {
1529                 ast_verb(3, "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1530         }
1531         
1532         if (pa->privdb_val == AST_PRIVACY_DENY) {
1533                 ast_verb(3, "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1534                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1535                 return 0;
1536         } else if (pa->privdb_val == AST_PRIVACY_KILL) {
1537                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1538                 return 0; /* Is this right? */
1539         } else if (pa->privdb_val == AST_PRIVACY_TORTURE) {
1540                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1541                 return 0; /* is this right??? */
1542         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN) {
1543                 /* Get the user's intro, store it in priv-callerintros/$CID,
1544                    unless it is already there-- this should be done before the
1545                    call is actually dialed  */
1546
1547                 /* make sure the priv-callerintros dir actually exists */
1548                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1549                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1550                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1551                         return -1;
1552                 }
1553
1554                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1555                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1556                         /* the DELUX version of this code would allow this caller the
1557                            option to hear and retape their previously recorded intro.
1558                         */
1559                 } else {
1560                         int duration; /* for feedback from play_and_wait */
1561                         /* the file doesn't exist yet. Let the caller submit his
1562                            vocal intro for posterity */
1563                         /* priv-recordintro script:
1564
1565                            "At the tone, please say your name:"
1566
1567                         */
1568                         silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
1569                         ast_answer(chan);
1570                         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 */
1571                                                                         /* don't think we'll need a lock removed, we took care of
1572                                                                            conflicts by naming the pa.privintro file */
1573                         if (res == -1) {
1574                                 /* Delete the file regardless since they hung up during recording */
1575                                 ast_filedelete(pa->privintro, NULL);
1576                                 if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1577                                         ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1578                                 else
1579                                         ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1580                                 return -1;
1581                         }
1582                         if (!ast_streamfile(chan, "vm-dialout", chan->language) )
1583                                 ast_waitstream(chan, "");
1584                 }
1585         }
1586         return 1; /* success */
1587 }
1588
1589 static void end_bridge_callback(void *data)
1590 {
1591         char buf[80];
1592         time_t end;
1593         struct ast_channel *chan = data;
1594
1595         if (!chan->cdr) {
1596                 return;
1597         }
1598
1599         time(&end);
1600
1601         ast_channel_lock(chan);
1602         if (chan->cdr->answer.tv_sec) {
1603                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->answer.tv_sec);
1604                 pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
1605         }
1606
1607         if (chan->cdr->start.tv_sec) {
1608                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->start.tv_sec);
1609                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
1610         }
1611         ast_channel_unlock(chan);
1612 }
1613
1614 static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator) {
1615         bconfig->end_bridge_callback_data = originator;
1616 }
1617
1618 static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags64 *peerflags, int *continue_exec)
1619 {
1620         int res = -1; /* default: error */
1621         char *rest, *cur; /* scan the list of destinations */
1622         struct chanlist *outgoing = NULL; /* list of destinations */
1623         struct ast_channel *peer;
1624         int to; /* timeout */
1625         struct cause_args num = { chan, 0, 0, 0 };
1626         int cause;
1627         char numsubst[256];
1628         char cidname[AST_MAX_EXTENSION] = "";
1629
1630         struct ast_bridge_config config = { { 0, } };
1631         struct timeval calldurationlimit = { 0, };
1632         char *dtmfcalled = NULL, *dtmfcalling = NULL, *dtmf_progress=NULL;
1633         struct privacy_args pa = {
1634                 .sentringing = 0,
1635                 .privdb_val = 0,
1636                 .status = "INVALIDARGS",
1637         };
1638         int sentringing = 0, moh = 0;
1639         const char *outbound_group = NULL;
1640         int result = 0;
1641         char *parse;
1642         int opermode = 0;
1643         AST_DECLARE_APP_ARGS(args,
1644                 AST_APP_ARG(peers);
1645                 AST_APP_ARG(timeout);
1646                 AST_APP_ARG(options);
1647                 AST_APP_ARG(url);
1648         );
1649         struct ast_flags64 opts = { 0, };
1650         char *opt_args[OPT_ARG_ARRAY_SIZE];
1651         struct ast_datastore *datastore = NULL;
1652         int fulldial = 0, num_dialed = 0;
1653
1654         /* Reset all DIAL variables back to blank, to prevent confusion (in case we don't reset all of them). */
1655         pbx_builtin_setvar_helper(chan, "DIALSTATUS", "");
1656         pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", "");
1657         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", "");
1658         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", "");
1659         pbx_builtin_setvar_helper(chan, "DIALEDTIME", "");
1660
1661         if (ast_strlen_zero(data)) {
1662                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1663                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1664                 return -1;
1665         }
1666
1667         parse = ast_strdupa(data);
1668
1669         AST_STANDARD_APP_ARGS(args, parse);
1670
1671         if (!ast_strlen_zero(args.options) &&
1672                 ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
1673                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1674                 goto done;
1675         }
1676
1677         if (ast_strlen_zero(args.peers)) {
1678                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1679                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1680                 goto done;
1681         }
1682
1683         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
1684                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
1685                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
1686         }
1687
1688         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
1689                 calldurationlimit.tv_sec = atoi(opt_args[OPT_ARG_DURATION_STOP]);
1690                 if (!calldurationlimit.tv_sec) {
1691                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
1692                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1693                         goto done;
1694                 }
1695                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n", calldurationlimit.tv_sec + calldurationlimit.tv_usec / 1000000.0);
1696         }
1697
1698         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
1699                 dtmf_progress = opt_args[OPT_ARG_SENDDTMF];
1700                 dtmfcalled = strsep(&dtmf_progress, ":");
1701                 dtmfcalling = strsep(&dtmf_progress, ":");
1702         }
1703
1704         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
1705                 if (do_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
1706                         goto done;
1707         }
1708
1709         if (ast_test_flag64(&opts, OPT_RESETCDR) && chan->cdr)
1710                 ast_cdr_reset(chan->cdr, NULL);
1711         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
1712                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(chan->exten);
1713
1714         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
1715                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
1716                 if (res <= 0)
1717                         goto out;
1718                 res = -1; /* reset default */
1719         }
1720
1721         if (ast_test_flag64(&opts, OPT_DTMF_EXIT) || ast_test_flag64(&opts, OPT_CALLER_HANGUP)) {
1722                 __ast_answer(chan, 0, 0);
1723         }
1724
1725         if (continue_exec)
1726                 *continue_exec = 0;
1727
1728         /* If a channel group has been specified, get it for use when we create peer channels */
1729
1730         ast_channel_lock(chan);
1731         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
1732                 outbound_group = ast_strdupa(outbound_group);   
1733                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
1734         } else if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP"))) {
1735                 outbound_group = ast_strdupa(outbound_group);
1736         }
1737         ast_channel_unlock(chan);       
1738         ast_copy_flags64(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING | OPT_IGNORE_CONNECTEDLINE);
1739
1740         /* loop through the list of dial destinations */
1741         rest = args.peers;
1742         while ((cur = strsep(&rest, "&")) ) {
1743                 struct chanlist *tmp;
1744                 struct ast_channel *tc; /* channel for this destination */
1745                 /* Get a technology/[device:]number pair */
1746                 char *number = cur;
1747                 char *interface = ast_strdupa(number);
1748                 char *tech = strsep(&number, "/");
1749                 /* find if we already dialed this interface */
1750                 struct ast_dialed_interface *di;
1751                 AST_LIST_HEAD(, ast_dialed_interface) *dialed_interfaces;
1752                 num_dialed++;
1753                 if (!number) {
1754                         ast_log(LOG_WARNING, "Dial argument takes format (technology/[device:]number1)\n");
1755                         goto out;
1756                 }
1757                 if (!(tmp = ast_calloc(1, sizeof(*tmp))))
1758                         goto out;
1759                 if (opts.flags) {
1760                         ast_copy_flags64(tmp, &opts,
1761                                 OPT_CANCEL_ELSEWHERE |
1762                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1763                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1764                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1765                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1766                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1767                                 OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID);
1768                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);
1769                 }
1770                 ast_copy_string(numsubst, number, sizeof(numsubst));
1771                 /* Request the peer */
1772
1773                 ast_channel_lock(chan);
1774                 datastore = ast_channel_datastore_find(chan, &dialed_interface_info, NULL);
1775                 /* If the incoming channel has previously had connected line information
1776                  * set on it (perhaps through the CONNECTED_LINE dialplan function) then
1777                  * seed the calllist's connected line information with this previously
1778                  * acquired info
1779                  */
1780                 if (chan->connected.id.number) {
1781                         ast_party_connected_line_copy(&tmp->connected, &chan->connected);
1782                 }
1783                 ast_channel_unlock(chan);
1784
1785                 if (datastore)
1786                         dialed_interfaces = datastore->data;
1787                 else {
1788                         if (!(datastore = ast_datastore_alloc(&dialed_interface_info, NULL))) {
1789                                 ast_log(LOG_WARNING, "Unable to create channel datastore for dialed interfaces. Aborting!\n");
1790                                 ast_free(tmp);
1791                                 goto out;
1792                         }
1793
1794                         datastore->inheritance = DATASTORE_INHERIT_FOREVER;
1795
1796                         if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
1797                                 ast_free(tmp);
1798                                 goto out;
1799                         }
1800
1801                         datastore->data = dialed_interfaces;
1802                         AST_LIST_HEAD_INIT(dialed_interfaces);
1803
1804                         ast_channel_lock(chan);
1805                         ast_channel_datastore_add(chan, datastore);
1806                         ast_channel_unlock(chan);
1807                 }
1808
1809                 AST_LIST_LOCK(dialed_interfaces);
1810                 AST_LIST_TRAVERSE(dialed_interfaces, di, list) {
1811                         if (!strcasecmp(di->interface, interface)) {
1812                                 ast_log(LOG_WARNING, "Skipping dialing interface '%s' again since it has already been dialed\n",
1813                                         di->interface);
1814                                 break;
1815                         }
1816                 }
1817                 AST_LIST_UNLOCK(dialed_interfaces);
1818
1819                 if (di) {
1820                         fulldial++;
1821                         ast_free(tmp);
1822                         continue;
1823                 }
1824
1825                 /* It is always ok to dial a Local interface.  We only keep track of
1826                  * which "real" interfaces have been dialed.  The Local channel will
1827                  * inherit this list so that if it ends up dialing a real interface,
1828                  * it won't call one that has already been called. */
1829                 if (strcasecmp(tech, "Local")) {
1830                         if (!(di = ast_calloc(1, sizeof(*di) + strlen(interface)))) {
1831                                 AST_LIST_UNLOCK(dialed_interfaces);
1832                                 ast_free(tmp);
1833                                 goto out;
1834                         }
1835                         strcpy(di->interface, interface);
1836
1837                         AST_LIST_LOCK(dialed_interfaces);
1838                         AST_LIST_INSERT_TAIL(dialed_interfaces, di, list);
1839                         AST_LIST_UNLOCK(dialed_interfaces);
1840                 }
1841
1842                 tc = ast_request(tech, chan->nativeformats, numsubst, &cause);
1843                 if (!tc) {
1844                         /* If we can't, just go on to the next call */
1845                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
1846                                 tech, cause, ast_cause2str(cause));
1847                         handle_cause(cause, &num);
1848                         if (!rest) /* we are on the last destination */
1849                                 chan->hangupcause = cause;
1850                         ast_free(tmp);
1851                         continue;
1852                 }
1853                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", numsubst);
1854
1855                 ast_channel_lock(tc);
1856                 while (ast_channel_trylock(chan)) {
1857                         CHANNEL_DEADLOCK_AVOIDANCE(tc);
1858                 }
1859                 /* Setup outgoing SDP to match incoming one */
1860                 if (!outgoing && !rest) {
1861                         ast_rtp_instance_early_bridge_make_compatible(tc, chan);
1862                 }
1863                 
1864                 /* Inherit specially named variables from parent channel */
1865                 ast_channel_inherit_variables(chan, tc);
1866                 ast_channel_datastore_inherit(chan, tc);
1867
1868                 tc->appl = "AppDial";
1869                 tc->data = "(Outgoing Line)";
1870                 memset(&tc->whentohangup, 0, sizeof(tc->whentohangup));
1871
1872                 /* If the new channel has no callerid, try to guess what it should be */
1873                 if (ast_strlen_zero(tc->cid.cid_num)) {
1874                         if (!ast_strlen_zero(chan->connected.id.number)) {
1875                                 ast_set_callerid(tc, chan->connected.id.number, chan->connected.id.name, chan->connected.ani);
1876                         } else if (!ast_strlen_zero(chan->cid.cid_dnid)) {
1877                                 ast_set_callerid(tc, chan->cid.cid_dnid, NULL, NULL);
1878                         } else if (!ast_strlen_zero(S_OR(chan->macroexten, chan->exten))) {
1879                                 ast_set_callerid(tc, S_OR(chan->macroexten, chan->exten), NULL, NULL);
1880                         }
1881                         ast_set_flag64(tmp, DIAL_NOCONNECTEDLINE);
1882                 }
1883                 
1884                 ast_connected_line_copy_from_caller(&tc->connected, &chan->cid);
1885
1886                 S_REPLACE(tc->cid.cid_rdnis, ast_strdup(chan->cid.cid_rdnis));
1887                 ast_party_redirecting_copy(&tc->redirecting, &chan->redirecting);
1888
1889                 tc->cid.cid_tns = chan->cid.cid_tns;
1890
1891                 ast_string_field_set(tc, accountcode, chan->accountcode);
1892                 tc->cdrflags = chan->cdrflags;
1893                 if (ast_strlen_zero(tc->musicclass))
1894                         ast_string_field_set(tc, musicclass, chan->musicclass);
1895
1896                 /* Pass ADSI CPE and transfer capability */
1897                 tc->adsicpe = chan->adsicpe;
1898                 tc->transfercapability = chan->transfercapability;
1899
1900                 /* If we have an outbound group, set this peer channel to it */
1901                 if (outbound_group)
1902                         ast_app_group_set_channel(tc, outbound_group);
1903                 /* If the calling channel has the ANSWERED_ELSEWHERE flag set, inherit it. This is to support local channels */
1904                 if (ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE))
1905                         ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1906
1907                 /* Check if we're forced by configuration */
1908                 if (ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE))
1909                          ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1910
1911
1912                 /* Inherit context and extension */
1913                 ast_string_field_set(tc, dialcontext, ast_strlen_zero(chan->macrocontext) ? chan->context : chan->macrocontext);
1914                 if (!ast_strlen_zero(chan->macroexten))
1915                         ast_copy_string(tc->exten, chan->macroexten, sizeof(tc->exten));
1916                 else
1917                         ast_copy_string(tc->exten, chan->exten, sizeof(tc->exten));
1918
1919                 res = ast_call(tc, numsubst, 0); /* Place the call, but don't wait on the answer */
1920
1921                 /* Save the info in cdr's that we called them */
1922                 if (chan->cdr)
1923                         ast_cdr_setdestchan(chan->cdr, tc->name);
1924
1925                 /* check the results of ast_call */
1926                 if (res) {
1927                         /* Again, keep going even if there's an error */
1928                         ast_debug(1, "ast call on peer returned %d\n", res);
1929                         ast_verb(3, "Couldn't call %s\n", numsubst);
1930                         if (tc->hangupcause) {
1931                                 chan->hangupcause = tc->hangupcause;
1932                         }
1933                         ast_channel_unlock(chan);
1934                         ast_channel_unlock(tc);
1935                         ast_hangup(tc);
1936                         tc = NULL;
1937                         ast_free(tmp);
1938                         continue;
1939                 } else {
1940                         const char *tmpexten = ast_strdupa(S_OR(chan->macroexten, chan->exten));
1941                         senddialevent(chan, tc, numsubst);
1942                         ast_verb(3, "Called %s\n", numsubst);
1943                         ast_channel_unlock(chan);
1944                         ast_channel_unlock(tc);
1945                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
1946                                 ast_set_callerid(tc, tmpexten, get_cid_name(cidname, sizeof(cidname), chan), NULL);
1947                         }
1948                 }
1949                 /* Put them in the list of outgoing thingies...  We're ready now.
1950                    XXX If we're forcibly removed, these outgoing calls won't get
1951                    hung up XXX */
1952                 ast_set_flag64(tmp, DIAL_STILLGOING);
1953                 tmp->chan = tc;
1954                 tmp->next = outgoing;
1955                 outgoing = tmp;
1956                 /* If this line is up, don't try anybody else */
1957                 if (outgoing->chan->_state == AST_STATE_UP)
1958                         break;
1959         }
1960         
1961         if (ast_strlen_zero(args.timeout)) {
1962                 to = -1;
1963         } else {
1964                 to = atoi(args.timeout);
1965                 if (to > 0)
1966                         to *= 1000;
1967                 else {
1968                         ast_log(LOG_WARNING, "Invalid timeout specified: '%s'. Setting timeout to infinite\n", args.timeout);
1969                         to = -1;
1970                 }
1971         }
1972
1973         if (!outgoing) {
1974                 strcpy(pa.status, "CHANUNAVAIL");
1975                 if (fulldial == num_dialed) {
1976                         res = -1;
1977                         goto out;
1978                 }
1979         } else {
1980                 /* Our status will at least be NOANSWER */
1981                 strcpy(pa.status, "NOANSWER");
1982                 if (ast_test_flag64(outgoing, OPT_MUSICBACK)) {
1983                         moh = 1;
1984                         if (!ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1985                                 char *original_moh = ast_strdupa(chan->musicclass);
1986                                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1987                                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1988                                 ast_string_field_set(chan, musicclass, original_moh);
1989                         } else {
1990                                 ast_moh_start(chan, NULL, NULL);
1991                         }
1992                         ast_indicate(chan, AST_CONTROL_PROGRESS);
1993                 } else if (ast_test_flag64(outgoing, OPT_RINGBACK)) {
1994                         ast_indicate(chan, AST_CONTROL_RINGING);
1995                         sentringing++;
1996                 }
1997         }
1998
1999         peer = wait_for_answer(chan, outgoing, &to, peerflags, &pa, &num, &result, dtmf_progress);
2000
2001         /* The ast_channel_datastore_remove() function could fail here if the
2002          * datastore was moved to another channel during a masquerade. If this is
2003          * the case, don't free the datastore here because later, when the channel
2004          * to which the datastore was moved hangs up, it will attempt to free this
2005          * datastore again, causing a crash
2006          */
2007         if (!ast_channel_datastore_remove(chan, datastore))
2008                 ast_datastore_free(datastore);
2009         if (!peer) {
2010                 if (result) {
2011                         res = result;
2012                 } else if (to) { /* Musta gotten hung up */
2013                         res = -1;
2014                 } else { /* Nobody answered, next please? */
2015                         res = 0;
2016                 }
2017
2018                 /* SIP, in particular, sends back this error code to indicate an
2019                  * overlap dialled number needs more digits. */
2020                 if (chan->hangupcause == AST_CAUSE_INVALID_NUMBER_FORMAT) {
2021                         res = AST_PBX_INCOMPLETE;
2022                 }
2023
2024                 /* almost done, although the 'else' block is 400 lines */
2025         } else {
2026                 const char *number;
2027
2028                 strcpy(pa.status, "ANSWER");
2029                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2030                 /* Ah ha!  Someone answered within the desired timeframe.  Of course after this
2031                    we will always return with -1 so that it is hung up properly after the
2032                    conversation.  */
2033                 hanguptree(outgoing, peer, 1);
2034                 outgoing = NULL;
2035                 /* If appropriate, log that we have a destination channel */
2036                 if (chan->cdr)
2037                         ast_cdr_setdestchan(chan->cdr, peer->name);
2038                 if (peer->name)
2039                         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", peer->name);
2040                 
2041                 ast_channel_lock(peer);
2042                 number = pbx_builtin_getvar_helper(peer, "DIALEDPEERNUMBER"); 
2043                 if (!number)
2044                         number = numsubst;
2045                 pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", number);
2046                 ast_channel_unlock(peer);
2047
2048                 if (!ast_strlen_zero(args.url) && ast_channel_supports_html(peer) ) {
2049                         ast_debug(1, "app_dial: sendurl=%s.\n", args.url);
2050                         ast_channel_sendurl( peer, args.url );
2051                 }
2052                 if ( (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) && pa.privdb_val == AST_PRIVACY_UNKNOWN) {
2053                         if (do_privacy(chan, peer, &opts, opt_args, &pa)) {
2054                                 res = 0;
2055                                 goto out;
2056                         }
2057                 }
2058                 if (!ast_test_flag64(&opts, OPT_ANNOUNCE) || ast_strlen_zero(opt_args[OPT_ARG_ANNOUNCE])) {
2059                         res = 0;
2060                 } else {
2061                         int digit = 0;
2062                         /* Start autoservice on the other chan */
2063                         res = ast_autoservice_start(chan);
2064                         /* Now Stream the File */
2065                         if (!res)
2066                                 res = ast_streamfile(peer, opt_args[OPT_ARG_ANNOUNCE], peer->language);
2067                         if (!res) {
2068                                 digit = ast_waitstream(peer, AST_DIGIT_ANY);
2069                         }
2070                         /* Ok, done. stop autoservice */
2071                         res = ast_autoservice_stop(chan);
2072                         if (digit > 0 && !res)
2073                                 res = ast_senddigit(chan, digit, 0);
2074                         else
2075                                 res = digit;
2076
2077                 }
2078
2079                 if (chan && peer && ast_test_flag64(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
2080                         replace_macro_delimiter(opt_args[OPT_ARG_GOTO]);
2081                         ast_parseable_goto(chan, opt_args[OPT_ARG_GOTO]);
2082                         /* peer goes to the same context and extension as chan, so just copy info from chan*/
2083                         ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2084                         ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2085                         peer->priority = chan->priority + 2;
2086                         ast_pbx_start(peer);
2087                         hanguptree(outgoing, NULL, ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE) ? 1 : 0);
2088                         if (continue_exec)
2089                                 *continue_exec = 1;
2090                         res = 0;
2091                         goto done;
2092                 }
2093
2094                 if (ast_test_flag64(&opts, OPT_CALLEE_MACRO) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_MACRO])) {
2095                         struct ast_app *theapp;
2096                         const char *macro_result;
2097
2098                         res = ast_autoservice_start(chan);
2099                         if (res) {
2100                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2101                                 res = -1;
2102                         }
2103
2104                         theapp = pbx_findapp("Macro");
2105
2106                         if (theapp && !res) { /* XXX why check res here ? */
2107                                 /* Set peer->exten and peer->context so that MACRO_EXTEN and MACRO_CONTEXT get set */
2108                                 ast_copy_string(peer->context, chan->context, sizeof(peer->context));
2109                                 ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
2110
2111                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_MACRO]);
2112                                 res = pbx_exec(peer, theapp, opt_args[OPT_ARG_CALLEE_MACRO]);
2113                                 ast_debug(1, "Macro exited with status %d\n", res);
2114                                 res = 0;
2115                         } else {
2116                                 ast_log(LOG_ERROR, "Could not find application Macro\n");
2117                                 res = -1;
2118                         }
2119
2120                         if (ast_autoservice_stop(chan) < 0) {
2121                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2122                                 res = -1;
2123                         }
2124
2125                         ast_channel_lock(peer);
2126
2127                         if (!res && (macro_result = pbx_builtin_getvar_helper(peer, "MACRO_RESULT"))) {
2128                                 char *macro_transfer_dest;
2129
2130                                 if (!strcasecmp(macro_result, "BUSY")) {
2131                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2132                                         ast_set_flag64(peerflags, OPT_GO_ON);
2133                                         res = -1;
2134                                 } else if (!strcasecmp(macro_result, "CONGESTION") || !strcasecmp(macro_result, "CHANUNAVAIL")) {
2135                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
2136                                         ast_set_flag64(peerflags, OPT_GO_ON);
2137                                         res = -1;
2138                                 } else if (!strcasecmp(macro_result, "CONTINUE")) {
2139                                         /* hangup peer and keep chan alive assuming the macro has changed
2140                                            the context / exten / priority or perhaps
2141                                            the next priority in the current exten is desired.
2142                                         */
2143                                         ast_set_flag64(peerflags, OPT_GO_ON);
2144                                         res = -1;
2145                                 } else if (!strcasecmp(macro_result, "ABORT")) {
2146                                         /* Hangup both ends unless the caller has the g flag */
2147                                         res = -1;
2148                                 } else if (!strncasecmp(macro_result, "GOTO:", 5) && (macro_transfer_dest = ast_strdupa(macro_result + 5))) {
2149                                         res = -1;
2150                                         /* perform a transfer to a new extension */
2151                                         if (strchr(macro_transfer_dest, '^')) { /* context^exten^priority*/
2152                                                 replace_macro_delimiter(macro_transfer_dest);
2153                                                 if (!ast_parseable_goto(chan, macro_transfer_dest))
2154                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2155                                         }
2156                                 }
2157                         }
2158
2159                         ast_channel_unlock(peer);
2160                 }
2161
2162                 if (ast_test_flag64(&opts, OPT_CALLEE_GOSUB) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GOSUB])) {
2163                         struct ast_app *theapp;
2164                         const char *gosub_result;
2165                         char *gosub_args, *gosub_argstart;
2166                         int res9 = -1;
2167
2168                         res9 = ast_autoservice_start(chan);
2169                         if (res9) {
2170                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2171                                 res9 = -1;
2172                         }
2173
2174                         theapp = pbx_findapp("Gosub");
2175
2176                         if (theapp && !res9) {
2177                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GOSUB]);
2178
2179                                 /* Set where we came from */
2180                                 ast_copy_string(peer->context, "app_dial_gosub_virtual_context", sizeof(peer->context));
2181                                 ast_copy_string(peer->exten, "s", sizeof(peer->exten));
2182                                 peer->priority = 0;
2183
2184                                 gosub_argstart = strchr(opt_args[OPT_ARG_CALLEE_GOSUB], ',');
2185                                 if (gosub_argstart) {
2186                                         *gosub_argstart = 0;
2187                                         if (asprintf(&gosub_args, "%s,s,1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], gosub_argstart + 1) < 0) {
2188                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2189                                                 gosub_args = NULL;
2190                                         }
2191                                         *gosub_argstart = ',';
2192                                 } else {
2193                                         if (asprintf(&gosub_args, "%s,s,1", opt_args[OPT_ARG_CALLEE_GOSUB]) < 0) {
2194                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2195                                                 gosub_args = NULL;
2196                                         }
2197                                 }
2198
2199                                 if (gosub_args) {
2200                                         res9 = pbx_exec(peer, theapp, gosub_args);
2201                                         if (!res9) {
2202                                                 struct ast_pbx_args args;
2203                                                 /* A struct initializer fails to compile for this case ... */
2204                                                 memset(&args, 0, sizeof(args));
2205                                                 args.no_hangup_chan = 1;
2206                                                 ast_pbx_run_args(peer, &args);
2207                                         }
2208                                         ast_free(gosub_args);
2209                                         ast_debug(1, "Gosub exited with status %d\n", res9);
2210                                 } else {
2211                                         ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
2212                                 }
2213
2214                         } else if (!res9) {
2215                                 ast_log(LOG_ERROR, "Could not find application Gosub\n");
2216                                 res9 = -1;
2217                         }
2218
2219                         if (ast_autoservice_stop(chan) < 0) {
2220                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2221                                 res9 = -1;
2222                         }
2223                         
2224                         ast_channel_lock(peer);
2225
2226                         if (!res9 && (gosub_result = pbx_builtin_getvar_helper(peer, "GOSUB_RESULT"))) {
2227                                 char *gosub_transfer_dest;
2228
2229                                 if (!strcasecmp(gosub_result, "BUSY")) {
2230                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2231                                         ast_set_flag64(peerflags, OPT_GO_ON);
2232                                         res9 = -1;
2233                                 } else if (!strcasecmp(gosub_result, "CONGESTION") || !strcasecmp(gosub_result, "CHANUNAVAIL")) {
2234                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2235                                         ast_set_flag64(peerflags, OPT_GO_ON);
2236                                         res9 = -1;
2237                                 } else if (!strcasecmp(gosub_result, "CONTINUE")) {
2238                                         /* hangup peer and keep chan alive assuming the macro has changed
2239                                            the context / exten / priority or perhaps
2240                                            the next priority in the current exten is desired.
2241                                         */
2242                                         ast_set_flag64(peerflags, OPT_GO_ON);
2243                                         res9 = -1;
2244                                 } else if (!strcasecmp(gosub_result, "ABORT")) {
2245                                         /* Hangup both ends unless the caller has the g flag */
2246                                         res9 = -1;
2247                                 } else if (!strncasecmp(gosub_result, "GOTO:", 5) && (gosub_transfer_dest = ast_strdupa(gosub_result + 5))) {
2248                                         res9 = -1;
2249                                         /* perform a transfer to a new extension */
2250                                         if (strchr(gosub_transfer_dest, '^')) { /* context^exten^priority*/
2251                                                 replace_macro_delimiter(gosub_transfer_dest);
2252                                                 if (!ast_parseable_goto(chan, gosub_transfer_dest))
2253                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2254                                         }
2255                                 }
2256                         }
2257
2258                         ast_channel_unlock(peer);       
2259                 }
2260
2261                 if (!res) {
2262                         if (!ast_tvzero(calldurationlimit)) {
2263                                 struct timeval whentohangup = calldurationlimit;
2264                                 peer->whentohangup = ast_tvadd(ast_tvnow(), whentohangup);
2265                         }
2266                         if (!ast_strlen_zero(dtmfcalled)) {
2267                                 ast_verb(3, "Sending DTMF '%s' to the called party.\n", dtmfcalled);
2268                                 res = ast_dtmf_stream(peer, chan, dtmfcalled, 250, 0);
2269                         }
2270                         if (!ast_strlen_zero(dtmfcalling)) {
2271                                 ast_verb(3, "Sending DTMF '%s' to the calling party.\n", dtmfcalling);
2272                                 res = ast_dtmf_stream(chan, peer, dtmfcalling, 250, 0);
2273                         }
2274                 }
2275
2276                 if (res) { /* some error */
2277                         res = -1;
2278                 } else {
2279                         if (ast_test_flag64(peerflags, OPT_CALLEE_TRANSFER))
2280                                 ast_set_flag(&(config.features_callee), AST_FEATURE_REDIRECT);
2281                         if (ast_test_flag64(peerflags, OPT_CALLER_TRANSFER))
2282                                 ast_set_flag(&(config.features_caller), AST_FEATURE_REDIRECT);
2283                         if (ast_test_flag64(peerflags, OPT_CALLEE_HANGUP))
2284                                 ast_set_flag(&(config.features_callee), AST_FEATURE_DISCONNECT);
2285                         if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP))
2286                                 ast_set_flag(&(config.features_caller), AST_FEATURE_DISCONNECT);
2287                         if (ast_test_flag64(peerflags, OPT_CALLEE_MONITOR))
2288                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMON);
2289                         if (ast_test_flag64(peerflags, OPT_CALLER_MONITOR))
2290                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMON);
2291                         if (ast_test_flag64(peerflags, OPT_CALLEE_PARK))
2292                                 ast_set_flag(&(config.features_callee), AST_FEATURE_PARKCALL);
2293                         if (ast_test_flag64(peerflags, OPT_CALLER_PARK))
2294                                 ast_set_flag(&(config.features_caller), AST_FEATURE_PARKCALL);
2295                         if (ast_test_flag64(peerflags, OPT_CALLEE_MIXMONITOR))
2296                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMIXMON);
2297                         if (ast_test_flag64(peerflags, OPT_CALLER_MIXMONITOR))
2298                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMIXMON);
2299                         if (ast_test_flag64(peerflags, OPT_GO_ON))
2300                                 ast_set_flag(&(config.features_caller), AST_FEATURE_NO_H_EXTEN);
2301
2302                         config.end_bridge_callback = end_bridge_callback;
2303                         config.end_bridge_callback_data = chan;
2304                         config.end_bridge_callback_data_fixup = end_bridge_callback_data_fixup;
2305                         
2306                         if (moh) {
2307                                 moh = 0;
2308                                 ast_moh_stop(chan);
2309                         } else if (sentringing) {
2310                                 sentringing = 0;
2311                                 ast_indicate(chan, -1);
2312                         }
2313                         /* Be sure no generators are left on it */
2314                         ast_deactivate_generator(chan);
2315                         /* Make sure channels are compatible */
2316                         res = ast_channel_make_compatible(chan, peer);
2317                         if (res < 0) {
2318                                 ast_log(LOG_WARNING, "Had to drop call because I couldn't make %s compatible with %s\n", chan->name, peer->name);
2319                                 ast_hangup(peer);
2320                                 res = -1;
2321                                 goto done;
2322                         }
2323                         if (opermode) {
2324                                 struct oprmode oprmode;
2325
2326                                 oprmode.peer = peer;
2327                                 oprmode.mode = opermode;
2328
2329                                 ast_channel_setoption(chan, AST_OPTION_OPRMODE, &oprmode, sizeof(oprmode), 0);
2330                         }
2331                         res = ast_bridge_call(chan, peer, &config);
2332                 }
2333
2334                 strcpy(peer->context, chan->context);
2335
2336                 if (ast_test_flag64(&opts, OPT_PEER_H) && ast_exists_extension(peer, peer->context, "h", 1, peer->cid.cid_num)) {
2337                         int autoloopflag;
2338                         int found;
2339                         int res9;
2340                         
2341                         strcpy(peer->exten, "h");
2342                         peer->priority = 1;
2343                         autoloopflag = ast_test_flag(peer, AST_FLAG_IN_AUTOLOOP); /* save value to restore at the end */
2344                         ast_set_flag(peer, AST_FLAG_IN_AUTOLOOP);
2345
2346                         while ((res9 = ast_spawn_extension(peer, peer->context, peer->exten, peer->priority, peer->cid.cid_num, &found, 1)) == 0)
2347                                 peer->priority++;
2348
2349                         if (found && res9) {
2350                                 /* Something bad happened, or a hangup has been requested. */
2351                                 ast_debug(1, "Spawn extension (%s,%s,%d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2352                                 ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2353                         }
2354                         ast_set2_flag(peer, autoloopflag, AST_FLAG_IN_AUTOLOOP);  /* set it back the way it was */
2355                 }
2356                 if (!ast_check_hangup(peer) && ast_test_flag64(&opts, OPT_CALLEE_GO_ON)) {
2357                         if(!ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GO_ON])) {
2358                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GO_ON]);
2359                                 ast_parseable_goto(peer, opt_args[OPT_ARG_CALLEE_GO_ON]);
2360                         } else { /* F() */
2361                                 int res;
2362                                 res = ast_goto_if_exists(peer, chan->context, chan->exten, (chan->priority) + 1); 
2363                                 if (res == AST_PBX_GOTO_FAILED) {
2364                                         ast_hangup(peer);
2365                                         goto out;
2366                                 }
2367                         }
2368                         ast_pbx_start(peer);
2369                 } else {
2370                         if (!ast_check_hangup(chan))
2371                                 chan->hangupcause = peer->hangupcause;
2372                         ast_hangup(peer);
2373                 }
2374         }
2375 out:
2376         if (moh) {
2377                 moh = 0;
2378                 ast_moh_stop(chan);
2379         } else if (sentringing) {
2380                 sentringing = 0;
2381                 ast_indicate(chan, -1);
2382         }
2383         ast_channel_early_bridge(chan, NULL);
2384         hanguptree(outgoing, NULL, 0); /* In this case, there's no answer anywhere */
2385         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2386         senddialendevent(chan, pa.status);
2387         ast_debug(1, "Exiting with DIALSTATUS=%s.\n", pa.status);
2388         
2389         if ((ast_test_flag64(peerflags, OPT_GO_ON)) && !ast_check_hangup(chan) && (res != AST_PBX_INCOMPLETE)) {
2390                 if (!ast_tvzero(calldurationlimit))
2391                         memset(&chan->whentohangup, 0, sizeof(chan->whentohangup));
2392                 res = 0;
2393         }
2394
2395 done:
2396         if (config.warning_sound) {
2397                 ast_free((char *)config.warning_sound);
2398         }
2399         if (config.end_sound) {
2400                 ast_free((char *)config.end_sound);
2401         }
2402         if (config.start_sound) {
2403                 ast_free((char *)config.start_sound);
2404         }
2405         return res;
2406 }
2407
2408 static int dial_exec(struct ast_channel *chan, void *data)
2409 {
2410         struct ast_flags64 peerflags;
2411
2412         memset(&peerflags, 0, sizeof(peerflags));
2413
2414         return dial_exec_full(chan, data, &peerflags, NULL);
2415 }
2416
2417 static int retrydial_exec(struct ast_channel *chan, void *data)
2418 {
2419         char *parse;
2420         const char *context = NULL;
2421         int sleepms = 0, loops = 0, res = -1;
2422         struct ast_flags64 peerflags = { 0, };
2423         AST_DECLARE_APP_ARGS(args,
2424                 AST_APP_ARG(announce);
2425                 AST_APP_ARG(sleep);
2426                 AST_APP_ARG(retries);
2427                 AST_APP_ARG(dialdata);
2428         );
2429
2430         if (ast_strlen_zero(data)) {
2431                 ast_log(LOG_WARNING, "RetryDial requires an argument!\n");
2432                 return -1;
2433         }
2434
2435         parse = ast_strdupa(data);
2436         AST_STANDARD_APP_ARGS(args, parse);
2437
2438         if (!ast_strlen_zero(args.sleep) && (sleepms = atoi(args.sleep)))
2439                 sleepms *= 1000;
2440
2441         if (!ast_strlen_zero(args.retries)) {
2442                 loops = atoi(args.retries);
2443         }
2444
2445         if (!args.dialdata) {
2446                 ast_log(LOG_ERROR, "%s requires a 4th argument (dialdata)\n", rapp);
2447                 goto done;
2448         }
2449
2450         if (sleepms < 1000)
2451                 sleepms = 10000;
2452
2453         if (!loops)
2454                 loops = -1; /* run forever */
2455
2456         ast_channel_lock(chan);
2457         context = pbx_builtin_getvar_helper(chan, "EXITCONTEXT");
2458         context = !ast_strlen_zero(context) ? ast_strdupa(context) : NULL;
2459         ast_channel_unlock(chan);
2460
2461         res = 0;
2462         while (loops) {
2463                 int continue_exec;
2464
2465                 chan->data = "Retrying";
2466                 if (ast_test_flag(chan, AST_FLAG_MOH))
2467                         ast_moh_stop(chan);
2468
2469                 res = dial_exec_full(chan, args.dialdata, &peerflags, &continue_exec);
2470                 if (continue_exec)
2471                         break;
2472
2473                 if (res == 0) {
2474                         if (ast_test_flag64(&peerflags, OPT_DTMF_EXIT)) {
2475                                 if (!ast_strlen_zero(args.announce)) {
2476                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2477                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2478                                                         ast_waitstream(chan, AST_DIGIT_ANY);
2479                                         } else
2480                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2481                                 }
2482                                 if (!res && sleepms) {
2483                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2484                                                 ast_moh_start(chan, NULL, NULL);
2485                                         res = ast_waitfordigit(chan, sleepms);
2486                                 }
2487                         } else {
2488                                 if (!ast_strlen_zero(args.announce)) {
2489                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2490                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2491                                                         res = ast_waitstream(chan, "");
2492                                         } else
2493                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2494                                 }
2495                                 if (sleepms) {
2496                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2497                                                 ast_moh_start(chan, NULL, NULL);
2498                                         if (!res)
2499                                                 res = ast_waitfordigit(chan, sleepms);
2500                                 }
2501                         }
2502                 }
2503
2504                 if (res < 0 || res == AST_PBX_INCOMPLETE) {
2505                         break;
2506                 } else if (res > 0) { /* Trying to send the call elsewhere (1 digit ext) */
2507                         if (onedigit_goto(chan, context, (char) res, 1)) {
2508                                 res = 0;
2509                                 break;
2510                         }
2511                 }
2512                 loops--;
2513         }
2514         if (loops == 0)
2515                 res = 0;
2516         else if (res == 1)
2517                 res = 0;
2518
2519         if (ast_test_flag(chan, AST_FLAG_MOH))
2520                 ast_moh_stop(chan);
2521  done:
2522         return res;
2523 }
2524
2525 static int unload_module(void)
2526 {
2527         int res;
2528         struct ast_context *con;
2529
2530         res = ast_unregister_application(app);
2531         res |= ast_unregister_application(rapp);
2532
2533         if ((con = ast_context_find("app_dial_gosub_virtual_context"))) {
2534                 ast_context_remove_extension2(con, "s", 1, NULL, 0);
2535                 ast_context_destroy(con, "app_dial"); /* leave nothing behind */
2536         }
2537
2538         return res;
2539 }
2540
2541 static int load_module(void)
2542 {
2543         int res;
2544         struct ast_context *con;
2545
2546         con = ast_context_find_or_create(NULL, NULL, "app_dial_gosub_virtual_context", "app_dial");
2547         if (!con)
2548                 ast_log(LOG_ERROR, "Dial virtual context 'app_dial_gosub_virtual_context' does not exist and unable to create\n");
2549         else
2550                 ast_add_extension2(con, 1, "s", 1, NULL, NULL, "NoOp", ast_strdup(""), ast_free_ptr, "app_dial");
2551
2552         res = ast_register_application_xml(app, dial_exec);
2553         res |= ast_register_application_xml(rapp, retrydial_exec);
2554
2555         return res;
2556 }
2557
2558 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Dialing Application");