Fix crash when sleep and retries argument was not given to RetryDial application.
[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.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                                         <para>Send the specified DTMF strings <emphasis>after</emphasis> the called
113                                         party has answered, but before the call gets bridged. The 
114                                         <replaceable>called</replaceable> DTMF string is sent to the called party, and the 
115                                         <replaceable>calling</replaceable> DTMF string is sent to the calling party. Both arguments 
116                                         can be used alone.</para>
117                                 </option>
118                                 <option name="e">
119                                         <para>Execute the <literal>h</literal> extension for peer after the call ends</para>
120                                 </option>
121                                 <option name="f">
122                                         <para>Force the callerid of the <emphasis>calling</emphasis> channel to be set as the
123                                         extension associated with the channel using a dialplan <literal>hint</literal>.
124                                         For example, some PSTNs do not allow CallerID to be set to anything
125                                         other than the number assigned to the caller.</para>
126                                 </option>
127                                 <option name="F" argsep="^">
128                                         <argument name="context" required="false" />
129                                         <argument name="exten" required="false" />
130                                         <argument name="priority" required="true" />
131                                         <para>When the caller hangs up, transfer the called party
132                                         to the specified destination and continue execution at that location.</para>
133                                 </option>
134                                 <option name="g">
135                                         <para>Proceed with dialplan execution at the next priority in the current extension if the
136                                         destination channel hangs up.</para>
137                                 </option>
138                                 <option name="G" argsep="^">
139                                         <argument name="context" required="false" />
140                                         <argument name="exten" required="false" />
141                                         <argument name="priority" required="true" />
142                                         <para>If the call is answered, transfer the calling party to
143                                         the specified <replaceable>priority</replaceable> and the called party to the specified 
144                                         <replaceable>priority</replaceable> plus one.</para>
145                                         <note>
146                                                 <para>You cannot use any additional action post answer options in conjunction with this option.</para>
147                                         </note>
148                                 </option>
149                                 <option name="h">
150                                         <para>Allow the called party to hang up by sending the <literal>*</literal> DTMF digit.</para>
151                                 </option>
152                                 <option name="H">
153                                         <para>Allow the calling party to hang up by hitting the <literal>*</literal> DTMF digit.</para>
154                                 </option>
155                                 <option name="i">
156                                         <para>Asterisk will ignore any forwarding requests it may receive on this dial attempt.</para>
157                                 </option>
158                                 <option name="k">
159                                         <para>Allow the called party to enable parking of the call by sending
160                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
161                                 </option>
162                                 <option name="K">
163                                         <para>Allow the calling party to enable parking of the call by sending
164                                         the DTMF sequence defined for call parking in <filename>features.conf</filename>.</para>
165                                 </option>
166                                 <option name="L" argsep=":">
167                                         <argument name="x" required="true">
168                                                 <para>Maximum call time, in milliseconds</para>
169                                         </argument>
170                                         <argument name="y">
171                                                 <para>Warning time, in milliseconds</para>
172                                         </argument>
173                                         <argument name="z">
174                                                 <para>Repeat time, in milliseconds</para>
175                                         </argument>
176                                         <para>Limit the call to <replaceable>x</replaceable> milliseconds. Play a warning when <replaceable>y</replaceable> milliseconds are
177                                         left. Repeat the warning every <replaceable>z</replaceable> milliseconds until time expires.</para>
178                                         <para>This option is affected by the following variables:</para>
179                                         <variablelist>
180                                                 <variable name="LIMIT_PLAYAUDIO_CALLER">
181                                                         <value name="yes" default="true" />
182                                                         <value name="no" />
183                                                         <para>If set, this variable causes Asterisk to play the prompts to the caller.</para>
184                                                 </variable>
185                                                 <variable name="LIMIT_PLAYAUDIO_CALLEE">
186                                                         <value name="yes" />
187                                                         <value name="no" default="true"/>
188                                                         <para>If set, this variable causes Asterisk to play the prompts to the callee.</para>
189                                                 </variable>
190                                                 <variable name="LIMIT_TIMEOUT_FILE">
191                                                         <value name="filename"/>
192                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the timeout is reached.
193                                                         If not set, the time remaining will be announced.</para>
194                                                 </variable>
195                                                 <variable name="LIMIT_CONNECT_FILE">
196                                                         <value name="filename"/>
197                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play when the call begins.
198                                                         If not set, the time remaining will be announced.</para>
199                                                 </variable>
200                                                 <variable name="LIMIT_WARNING_FILE">
201                                                         <value name="filename"/>
202                                                         <para>If specified, <replaceable>filename</replaceable> specifies the sound prompt to play as
203                                                         a warning when time <replaceable>x</replaceable> is reached. If not set, the time remaining will be announced.</para>
204                                                 </variable>
205                                         </variablelist>
206                                 </option>
207                                 <option name="m">
208                                         <argument name="class" required="false"/>
209                                         <para>Provide hold music to the calling party until a requested
210                                         channel answers. A specific music on hold <replaceable>class</replaceable>
211                                         (as defined in <filename>musiconhold.conf</filename>) can be specified.</para>
212                                 </option>
213                                 <option name="M" argsep="^">
214                                         <argument name="macro" required="true">
215                                                 <para>Name of the macro that should be executed.</para>
216                                         </argument>
217                                         <argument name="arg" multiple="true">
218                                                 <para>Macro arguments</para>
219                                         </argument>
220                                         <para>Execute the specified <replaceable>macro</replaceable> for the <emphasis>called</emphasis> channel 
221                                         before connecting to the calling channel. Arguments can be specified to the Macro
222                                         using <literal>^</literal> as a delimiter. The macro can set the variable
223                                         <variable>MACRO_RESULT</variable> to specify the following actions after the macro is
224                                         finished executing:</para>
225                                         <variablelist>
226                                                 <variable name="MACRO_RESULT">
227                                                         <para>If set, this action will be taken after the macro finished executing.</para>
228                                                         <value name="ABORT">
229                                                                 Hangup both legs of the call
230                                                         </value>
231                                                         <value name="CONGESTION">
232                                                                 Behave as if line congestion was encountered
233                                                         </value>
234                                                         <value name="BUSY">
235                                                                 Behave as if a busy signal was encountered
236                                                         </value>
237                                                         <value name="CONTINUE">
238                                                                 Hangup the called party and allow the calling party to continue dialplan execution at the next priority
239                                                         </value>
240                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
241                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
242                                                                 Transfer the call to the specified destination.
243                                                         </value>
244                                                 </variable>
245                                         </variablelist>
246                                         <note>
247                                                 <para>You cannot use any additional action post answer options in conjunction
248                                                 with this option. Also, pbx services are not run on the peer (called) channel,
249                                                 so you will not be able to set timeouts via the TIMEOUT() function in this macro.</para>
250                                         </note>
251                                 </option>
252                                 <option name="n">
253                                         <para>This option is a modifier for the call screening/privacy mode. (See the 
254                                         <literal>p</literal> and <literal>P</literal> options.) It specifies
255                                         that no introductions are to be saved in the <directory>priv-callerintros</directory>
256                                         directory.</para>
257                                 </option>
258                                 <option name="N">
259                                         <para>This option is a modifier for the call screening/privacy mode. It specifies
260                                         that if Caller*ID is present, do not screen the call.</para>
261                                 </option>
262                                 <option name="o">
263                                         <para>Specify that the Caller*ID that was present on the <emphasis>calling</emphasis> channel
264                                         be set as the Caller*ID on the <emphasis>called</emphasis> channel. This was the
265                                         behavior of Asterisk 1.0 and earlier.</para>
266                                 </option>
267                                 <option name="O">
268                                         <argument name="mode">
269                                                 <para>With <replaceable>mode</replaceable> either not specified or set to <literal>1</literal>,
270                                                 the originator hanging up will cause the phone to ring back immediately.</para>
271                                                 <para>With <replaceable>mode</replaceable> set to <literal>2</literal>, when the operator 
272                                                 flashes the trunk, it will ring their phone back.</para>
273                                         </argument>
274                                         <para>Enables <emphasis>operator services</emphasis> mode.  This option only
275                                         works when bridging a DAHDI channel to another DAHDI channel
276                                         only. if specified on non-DAHDI interfaces, it will be ignored.
277                                         When the destination answers (presumably an operator services
278                                         station), the originator no longer has control of their line.
279                                         They may hang up, but the switch will not release their line
280                                         until the destination party (the operator) hangs up.</para>
281                                 </option>
282                                 <option name="p">
283                                         <para>This option enables screening mode. This is basically Privacy mode
284                                         without memory.</para>
285                                 </option>
286                                 <option name="P">
287                                         <argument name="x" />
288                                         <para>Enable privacy mode. Use <replaceable>x</replaceable> as the family/key in the AstDB database if
289                                         it is provided. The current extension is used if a database family/key is not specified.</para>
290                                 </option>
291                                 <option name="r">
292                                         <para>Indicate ringing to the calling party, even if the called party isn't actually ringing. Pass no audio to the calling
293                                         party until the called channel has answered.</para>
294                                 </option>
295                                 <option name="S">
296                                         <argument name="x" required="true" />
297                                         <para>Hang up the call <replaceable>x</replaceable> seconds <emphasis>after</emphasis> the called party has
298                                         answered the call.</para>
299                                 </option>
300                                 <option name="t">
301                                         <para>Allow the called party to transfer the calling party by sending the
302                                         DTMF sequence defined in <filename>features.conf</filename>.</para>
303                                 </option>
304                                 <option name="T">
305                                         <para>Allow the calling party to transfer the called party by sending the
306                                         DTMF sequence defined in <filename>features.conf</filename>.</para>
307                                 </option>
308                                 <option name="U" argsep="^">
309                                         <argument name="x" required="true">
310                                                 <para>Name of the subroutine to execute via Gosub</para>
311                                         </argument>
312                                         <argument name="arg" multiple="true" required="false">
313                                                 <para>Arguments for the Gosub routine</para>
314                                         </argument>
315                                         <para>Execute via Gosub the routine <replaceable>x</replaceable> for the <emphasis>called</emphasis> channel before connecting
316                                         to the calling channel. Arguments can be specified to the Gosub
317                                         using <literal>^</literal> as a delimiter. The Gosub routine can set the variable
318                                         <variable>GOSUB_RESULT</variable> to specify the following actions after the Gosub returns.</para>
319                                         <variablelist>
320                                                 <variable name="GOSUB_RESULT">
321                                                         <value name="ABORT">
322                                                                 Hangup both legs of the call.
323                                                         </value>
324                                                         <value name="CONGESTION">
325                                                                 Behave as if line congestion was encountered.
326                                                         </value>
327                                                         <value name="BUSY">
328                                                                 Behave as if a busy signal was encountered.
329                                                         </value>
330                                                         <value name="CONTINUE">
331                                                                 Hangup the called party and allow the calling party
332                                                                 to continue dialplan execution at the next priority.
333                                                         </value>
334                                                         <!-- TODO: Fix this syntax up, once we've figured out how to specify the GOTO syntax -->
335                                                         <value name="GOTO:&lt;context&gt;^&lt;exten&gt;^&lt;priority&gt;">
336                                                                 Transfer the call to the specified priority. Optionally, an extension, or
337                                                                 extension and priority can be specified.
338                                                         </value>
339                                                 </variable>
340                                         </variablelist>
341                                         <note>
342                                                 <para>You cannot use any additional action post answer options in conjunction
343                                                 with this option. Also, pbx services are not run on the peer (called) channel,
344                                                 so you will not be able to set timeouts via the TIMEOUT() function in this routine.</para>
345                                         </note>
346                                 </option>
347                                 <option name="w">
348                                         <para>Allow the called party to enable recording of the call by sending
349                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
350                                 </option>
351                                 <option name="W">
352                                         <para>Allow the calling party to enable recording of the call by sending
353                                         the DTMF sequence defined for one-touch recording in <filename>features.conf</filename>.</para>
354                                 </option>
355                                 <option name="x">
356                                         <para>Allow the called party to enable recording of the call by sending
357                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
358                                 </option>
359                                 <option name="X">
360                                         <para>Allow the calling party to enable recording of the call by sending
361                                         the DTMF sequence defined for one-touch automixmonitor in <filename>features.conf</filename>.</para>
362                                 </option>
363                                 </optionlist>
364                         </parameter>
365                         <parameter name="URL">
366                                 <para>The optional URL will be sent to the called party if the channel driver supports it.</para>
367                         </parameter>
368                 </syntax>
369                 <description>
370                         <para>This application will place calls to one or more specified channels. As soon
371                         as one of the requested channels answers, the originating channel will be
372                         answered, if it has not already been answered. These two channels will then
373                         be active in a bridged call. All other channels that were requested will then
374                         be hung up.</para>
375
376                         <para>Unless there is a timeout specified, the Dial application will wait
377                         indefinitely until one of the called channels answers, the user hangs up, or
378                         if all of the called channels are busy or unavailable. Dialplan executing will
379                         continue if no requested channels can be called, or if the timeout expires.
380                         This application will report normal termination if the originating channel
381                         hangs up, or if the call is bridged and either of the parties in the bridge
382                         ends the call.</para>
383
384                         <para>If the <variable>OUTBOUND_GROUP</variable> variable is set, all peer channels created by this
385                         application will be put into that group (as in Set(GROUP()=...).
386                         If the <variable>OUTBOUND_GROUP_ONCE</variable> variable is set, all peer channels created by this
387                         application will be put into that group (as in Set(GROUP()=...). Unlike OUTBOUND_GROUP,
388                         however, the variable will be unset after use.</para>
389
390                         <para>This application sets the following channel variables:</para>
391                         <variablelist>
392                                 <variable name="DIALEDTIME">
393                                         <para>This is the time from dialing a channel until when it is disconnected.</para>
394                                 </variable>
395                                 <variable name="ANSWEREDTIME">
396                                         <para>This is the amount of time for actual call.</para>
397                                 </variable>
398                                 <variable name="DIALSTATUS">
399                                         <para>This is the status of the call</para>
400                                         <value name="CHANUNAVAIL" />
401                                         <value name="CONGESTION" />
402                                         <value name="NOANSWER" />
403                                         <value name="BUSY" />
404                                         <value name="ANSWER" />
405                                         <value name="CANCEL" />
406                                         <value name="DONTCALL">
407                                                 For the Privacy and Screening Modes.
408                                                 Will be set if the called party chooses to send the calling party to the 'Go Away' script.
409                                         </value>
410                                         <value name="TORTURE">
411                                                 For the Privacy and Screening Modes.
412                                                 Will be set if the called party chooses to send the calling party to the 'torture' script.
413                                         </value>
414                                         <value name="INVALIDARGS" />
415                                 </variable>
416                         </variablelist>
417                 </description>
418         </application>
419         <application name="RetryDial" language="en_US">
420                 <synopsis>
421                         Place a call, retrying on failure allowing an optional exit extension.
422                 </synopsis>
423                 <syntax>
424                         <parameter name="announce" required="true">
425                                 <para>Filename of sound that will be played when no channel can be reached</para>
426                         </parameter>
427                         <parameter name="sleep" required="true">
428                                 <para>Number of seconds to wait after a dial attempt failed before a new attempt is made</para>
429                         </parameter>
430                         <parameter name="retries" required="true">
431                                 <para>Number of retries</para>
432                                 <para>When this is reached flow will continue at the next priority in the dialplan</para>
433                         </parameter>
434                         <parameter name="dialargs" required="true">
435                                 <para>Same format as arguments provided to the Dial application</para>
436                         </parameter>
437                 </syntax>
438                 <description>
439                         <para>This application will attempt to place a call using the normal Dial application.
440                         If no channel can be reached, the <replaceable>announce</replaceable> file will be played.
441                         Then, it will wait <replaceable>sleep</replaceable> number of seconds before retrying the call.
442                         After <replaceable>retries</replaceable> number of attempts, the calling channel will continue at the next priority in the dialplan.
443                         If the <replaceable>retries</replaceable> setting is set to 0, this application will retry endlessly.
444                         While waiting to retry a call, a 1 digit extension may be dialed. If that
445                         extension exists in either the context defined in <variable>EXITCONTEXT</variable> or the current
446                         one, The call will jump to that extension immediately.
447                         The <replaceable>dialargs</replaceable> are specified in the same format that arguments are provided
448                         to the Dial application.</para>
449                 </description>
450         </application>
451  ***/
452
453 static char *app = "Dial";
454 static char *rapp = "RetryDial";
455
456 enum {
457         OPT_ANNOUNCE =          (1 << 0),
458         OPT_RESETCDR =          (1 << 1),
459         OPT_DTMF_EXIT =         (1 << 2),
460         OPT_SENDDTMF =          (1 << 3),
461         OPT_FORCECLID =         (1 << 4),
462         OPT_GO_ON =             (1 << 5),
463         OPT_CALLEE_HANGUP =     (1 << 6),
464         OPT_CALLER_HANGUP =     (1 << 7),
465         OPT_DURATION_LIMIT =    (1 << 9),
466         OPT_MUSICBACK =         (1 << 10),
467         OPT_CALLEE_MACRO =      (1 << 11),
468         OPT_SCREEN_NOINTRO =    (1 << 12),
469         OPT_SCREEN_NOCLID =     (1 << 13),
470         OPT_ORIGINAL_CLID =     (1 << 14),
471         OPT_SCREENING =         (1 << 15),
472         OPT_PRIVACY =           (1 << 16),
473         OPT_RINGBACK =          (1 << 17),
474         OPT_DURATION_STOP =     (1 << 18),
475         OPT_CALLEE_TRANSFER =   (1 << 19),
476         OPT_CALLER_TRANSFER =   (1 << 20),
477         OPT_CALLEE_MONITOR =    (1 << 21),
478         OPT_CALLER_MONITOR =    (1 << 22),
479         OPT_GOTO =              (1 << 23),
480         OPT_OPERMODE =          (1 << 24),
481         OPT_CALLEE_PARK =       (1 << 25),
482         OPT_CALLER_PARK =       (1 << 26),
483         OPT_IGNORE_FORWARDING = (1 << 27),
484         OPT_CALLEE_GOSUB =      (1 << 28),
485         OPT_CALLEE_MIXMONITOR = (1 << 29),
486         OPT_CALLER_MIXMONITOR = (1 << 30),
487 };
488
489 #define DIAL_STILLGOING      (1 << 31)
490 #define DIAL_NOFORWARDHTML   ((uint64_t)1 << 32) /* flags are now 64 bits, so keep it up! */
491 #define OPT_CANCEL_ELSEWHERE ((uint64_t)1 << 33)
492 #define OPT_PEER_H           ((uint64_t)1 << 34)
493 #define OPT_CALLEE_GO_ON     ((uint64_t)1 << 35)
494
495 enum {
496         OPT_ARG_ANNOUNCE = 0,
497         OPT_ARG_SENDDTMF,
498         OPT_ARG_GOTO,
499         OPT_ARG_DURATION_LIMIT,
500         OPT_ARG_MUSICBACK,
501         OPT_ARG_CALLEE_MACRO,
502         OPT_ARG_CALLEE_GOSUB,
503         OPT_ARG_CALLEE_GO_ON,
504         OPT_ARG_PRIVACY,
505         OPT_ARG_DURATION_STOP,
506         OPT_ARG_OPERMODE,
507         /* note: this entry _MUST_ be the last one in the enum */
508         OPT_ARG_ARRAY_SIZE,
509 };
510
511 AST_APP_OPTIONS(dial_exec_options, BEGIN_OPTIONS
512         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
513         AST_APP_OPTION('C', OPT_RESETCDR),
514         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
515         AST_APP_OPTION('d', OPT_DTMF_EXIT),
516         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
517         AST_APP_OPTION('e', OPT_PEER_H),
518         AST_APP_OPTION('f', OPT_FORCECLID),
519         AST_APP_OPTION_ARG('F', OPT_CALLEE_GO_ON, OPT_ARG_CALLEE_GO_ON),
520         AST_APP_OPTION('g', OPT_GO_ON),
521         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
522         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
523         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
524         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
525         AST_APP_OPTION('k', OPT_CALLEE_PARK),
526         AST_APP_OPTION('K', OPT_CALLER_PARK),
527         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
528         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
529         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
530         AST_APP_OPTION('n', OPT_SCREEN_NOINTRO),
531         AST_APP_OPTION('N', OPT_SCREEN_NOCLID),
532         AST_APP_OPTION('o', OPT_ORIGINAL_CLID),
533         AST_APP_OPTION_ARG('O', OPT_OPERMODE, OPT_ARG_OPERMODE),
534         AST_APP_OPTION('p', OPT_SCREENING),
535         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
536         AST_APP_OPTION('r', OPT_RINGBACK),
537         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
538         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
539         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
540         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
541         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
542         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
543         AST_APP_OPTION('x', OPT_CALLEE_MIXMONITOR),
544         AST_APP_OPTION('X', OPT_CALLER_MIXMONITOR),
545 END_OPTIONS );
546
547 #define CAN_EARLY_BRIDGE(flags,chan,peer) (!ast_test_flag64(flags, OPT_CALLEE_HANGUP | \
548         OPT_CALLER_HANGUP | OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER | \
549         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR | OPT_CALLEE_PARK | OPT_CALLER_PARK) && \
550         !chan->audiohooks && !peer->audiohooks)
551
552 /*
553  * The list of active channels
554  */
555 struct chanlist {
556         struct chanlist *next;
557         struct ast_channel *chan;
558         uint64_t flags;
559 };
560
561
562 static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception, int answered_elsewhere)
563 {
564         /* Hang up a tree of stuff */
565         struct chanlist *oo;
566         while (outgoing) {
567                 /* Hangup any existing lines we have open */
568                 if (outgoing->chan && (outgoing->chan != exception)) {
569                         if (answered_elsewhere) {
570                                 /* The flag is used for local channel inheritance and stuff */
571                                 ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
572                                 /* This is for the channel drivers */
573                                 outgoing->chan->hangupcause = AST_CAUSE_ANSWERED_ELSEWHERE;
574                         }
575                         ast_hangup(outgoing->chan);
576                 }
577                 oo = outgoing;
578                 outgoing = outgoing->next;
579                 ast_free(oo);
580         }
581 }
582
583 #define AST_MAX_WATCHERS 256
584
585 /*
586  * argument to handle_cause() and other functions.
587  */
588 struct cause_args {
589         struct ast_channel *chan;
590         int busy;
591         int congestion;
592         int nochan;
593 };
594
595 static void handle_cause(int cause, struct cause_args *num)
596 {
597         struct ast_cdr *cdr = num->chan->cdr;
598
599         switch(cause) {
600         case AST_CAUSE_BUSY:
601                 if (cdr)
602                         ast_cdr_busy(cdr);
603                 num->busy++;
604                 break;
605
606         case AST_CAUSE_CONGESTION:
607                 if (cdr)
608                         ast_cdr_failed(cdr);
609                 num->congestion++;
610                 break;
611
612         case AST_CAUSE_NO_ROUTE_DESTINATION:
613         case AST_CAUSE_UNREGISTERED:
614                 if (cdr)
615                         ast_cdr_failed(cdr);
616                 num->nochan++;
617                 break;
618
619         case AST_CAUSE_NORMAL_CLEARING:
620                 break;
621
622         default:
623                 num->nochan++;
624                 break;
625         }
626 }
627
628 /* free the buffer if allocated, and set the pointer to the second arg */
629 #define S_REPLACE(s, new_val)           \
630         do {                            \
631                 if (s)                  \
632                         ast_free(s);    \
633                 s = (new_val);          \
634         } while (0)
635
636 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
637 {
638         char rexten[2] = { exten, '\0' };
639
640         if (context) {
641                 if (!ast_goto_if_exists(chan, context, rexten, pri))
642                         return 1;
643         } else {
644                 if (!ast_goto_if_exists(chan, chan->context, rexten, pri))
645                         return 1;
646                 else if (!ast_strlen_zero(chan->macrocontext)) {
647                         if (!ast_goto_if_exists(chan, chan->macrocontext, rexten, pri))
648                                 return 1;
649                 }
650         }
651         return 0;
652 }
653
654
655 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
656 {
657         const char *context = S_OR(chan->macrocontext, chan->context);
658         const char *exten = S_OR(chan->macroexten, chan->exten);
659
660         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
661 }
662
663 static void senddialevent(struct ast_channel *src, struct ast_channel *dst, const char *dialstring)
664 {
665         manager_event(EVENT_FLAG_CALL, "Dial",
666                 "SubEvent: Begin\r\n"
667                 "Channel: %s\r\n"
668                 "Destination: %s\r\n"
669                 "CallerIDNum: %s\r\n"
670                 "CallerIDName: %s\r\n"
671                 "UniqueID: %s\r\n"
672                 "DestUniqueID: %s\r\n"
673                 "Dialstring: %s\r\n",
674                 src->name, dst->name, S_OR(src->cid.cid_num, "<unknown>"),
675                 S_OR(src->cid.cid_name, "<unknown>"), src->uniqueid,
676                 dst->uniqueid, dialstring ? dialstring : "");
677 }
678
679 static void senddialendevent(const struct ast_channel *src, const char *dialstatus)
680 {
681         manager_event(EVENT_FLAG_CALL, "Dial",
682                 "SubEvent: End\r\n"
683                 "Channel: %s\r\n"
684                 "UniqueID: %s\r\n"
685                 "DialStatus: %s\r\n",
686                 src->name, src->uniqueid, dialstatus);
687 }
688
689 /*!
690  * helper function for wait_for_answer()
691  *
692  * XXX this code is highly suspicious, as it essentially overwrites
693  * the outgoing channel without properly deleting it.
694  */
695 static void do_forward(struct chanlist *o,
696         struct cause_args *num, struct ast_flags64 *peerflags, int single)
697 {
698         char tmpchan[256];
699         struct ast_channel *original = o->chan;
700         struct ast_channel *c = o->chan; /* the winner */
701         struct ast_channel *in = num->chan; /* the input channel */
702         char *stuff;
703         char *tech;
704         int cause;
705
706         ast_copy_string(tmpchan, c->call_forward, sizeof(tmpchan));
707         if ((stuff = strchr(tmpchan, '/'))) {
708                 *stuff++ = '\0';
709                 tech = tmpchan;
710         } else {
711                 const char *forward_context;
712                 ast_channel_lock(c);
713                 forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
714                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", c->call_forward, forward_context ? forward_context : c->context);
715                 ast_channel_unlock(c);
716                 stuff = tmpchan;
717                 tech = "Local";
718         }
719         /* Before processing channel, go ahead and check for forwarding */
720         ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", in->name, tech, stuff, c->name);
721         /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
722         if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
723                 ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", in->name, tech, stuff);
724                 c = o->chan = NULL;
725                 cause = AST_CAUSE_BUSY;
726         } else {
727                 /* Setup parameters */
728                 c = o->chan = ast_request(tech, in->nativeformats, stuff, &cause);
729                 if (c) {
730                         if (single)
731                                 ast_channel_make_compatible(o->chan, in);
732                         ast_channel_inherit_variables(in, o->chan);
733                         ast_channel_datastore_inherit(in, o->chan);
734                 } else
735                         ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
736         }
737         if (!c) {
738                 ast_clear_flag64(o, DIAL_STILLGOING);
739                 handle_cause(cause, num);
740                 ast_hangup(original);
741         } else {
742                 char *new_cid_num, *new_cid_name;
743                 struct ast_channel *src;
744
745                 ast_rtp_make_compatible(c, in, single);
746                 if (ast_test_flag64(o, OPT_FORCECLID)) {
747                         new_cid_num = ast_strdup(S_OR(in->macroexten, in->exten));
748                         new_cid_name = NULL; /* XXX no name ? */
749                         src = c; /* XXX possible bug in previous code, which used 'winner' ? it may have changed */
750                 } else {
751                         new_cid_num = ast_strdup(in->cid.cid_num);
752                         new_cid_name = ast_strdup(in->cid.cid_name);
753                         src = in;
754                 }
755                 ast_string_field_set(c, accountcode, src->accountcode);
756                 c->cdrflags = src->cdrflags;
757                 S_REPLACE(c->cid.cid_num, new_cid_num);
758                 S_REPLACE(c->cid.cid_name, new_cid_name);
759
760                 if (in->cid.cid_ani) { /* XXX or maybe unconditional ? */
761                         S_REPLACE(c->cid.cid_ani, ast_strdup(in->cid.cid_ani));
762                 }
763                 S_REPLACE(c->cid.cid_rdnis, ast_strdup(S_OR(in->macroexten, in->exten)));
764                 if (ast_call(c, tmpchan, 0)) {
765                         ast_log(LOG_NOTICE, "Failed to dial on local channel for call forward to '%s'\n", tmpchan);
766                         ast_clear_flag64(o, DIAL_STILLGOING);
767                         ast_hangup(original);
768                         ast_hangup(c);
769                         c = o->chan = NULL;
770                         num->nochan++;
771                 } else {
772                         senddialevent(in, c, stuff);
773                         /* After calling, set callerid to extension */
774                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
775                                 char cidname[AST_MAX_EXTENSION] = "";
776                                 ast_set_callerid(c, S_OR(in->macroexten, in->exten), get_cid_name(cidname, sizeof(cidname), in), NULL);
777                         }
778                         /* Hangup the original channel now, in case we needed it */
779                         ast_hangup(original);
780                 }
781                 if (single) {
782                         ast_indicate(in, -1);
783                 }
784         }
785 }
786
787 /* argument used for some functions. */
788 struct privacy_args {
789         int sentringing;
790         int privdb_val;
791         char privcid[256];
792         char privintro[1024];
793         char status[256];
794 };
795
796 static struct ast_channel *wait_for_answer(struct ast_channel *in,
797         struct chanlist *outgoing, int *to, struct ast_flags64 *peerflags,
798         struct privacy_args *pa,
799         const struct cause_args *num_in, int *result)
800 {
801         struct cause_args num = *num_in;
802         int prestart = num.busy + num.congestion + num.nochan;
803         int orig = *to;
804         struct ast_channel *peer = NULL;
805         /* single is set if only one destination is enabled */
806         int single = outgoing && !outgoing->next && !ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK);
807 #ifdef HAVE_EPOLL
808         struct chanlist *epollo;
809 #endif
810
811         if (single) {
812                 /* Turn off hold music, etc */
813                 ast_deactivate_generator(in);
814                 /* If we are calling a single channel, make them compatible for in-band tone purpose */
815                 ast_channel_make_compatible(outgoing->chan, in);
816         }
817
818 #ifdef HAVE_EPOLL
819         for (epollo = outgoing; epollo; epollo = epollo->next)
820                 ast_poll_channel_add(in, epollo->chan);
821 #endif
822
823         while (*to && !peer) {
824                 struct chanlist *o;
825                 int pos = 0; /* how many channels do we handle */
826                 int numlines = prestart;
827                 struct ast_channel *winner;
828                 struct ast_channel *watchers[AST_MAX_WATCHERS];
829
830                 watchers[pos++] = in;
831                 for (o = outgoing; o; o = o->next) {
832                         /* Keep track of important channels */
833                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
834                                 watchers[pos++] = o->chan;
835                         numlines++;
836                 }
837                 if (pos == 1) { /* only the input channel is available */
838                         if (numlines == (num.busy + num.congestion + num.nochan)) {
839                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
840                                 if (num.busy)
841                                         strcpy(pa->status, "BUSY");
842                                 else if (num.congestion)
843                                         strcpy(pa->status, "CONGESTION");
844                                 else if (num.nochan)
845                                         strcpy(pa->status, "CHANUNAVAIL");
846                         } else {
847                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
848                         }
849                         *to = 0;
850                         return NULL;
851                 }
852                 winner = ast_waitfor_n(watchers, pos, to);
853                 for (o = outgoing; o; o = o->next) {
854                         struct ast_frame *f;
855                         struct ast_channel *c = o->chan;
856
857                         if (c == NULL)
858                                 continue;
859                         if (ast_test_flag64(o, DIAL_STILLGOING) && c->_state == AST_STATE_UP) {
860                                 if (!peer) {
861                                         ast_verb(3, "%s answered %s\n", c->name, in->name);
862                                         peer = c;
863                                         ast_copy_flags64(peerflags, o,
864                                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
865                                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
866                                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
867                                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
868                                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
869                                                 DIAL_NOFORWARDHTML);
870                                         ast_string_field_set(c, dialcontext, "");
871                                         ast_copy_string(c->exten, "", sizeof(c->exten));
872                                 }
873                                 continue;
874                         }
875                         if (c != winner)
876                                 continue;
877                         /* here, o->chan == c == winner */
878                         if (!ast_strlen_zero(c->call_forward)) {
879                                 do_forward(o, &num, peerflags, single);
880                                 continue;
881                         }
882                         f = ast_read(winner);
883                         if (!f) {
884                                 in->hangupcause = c->hangupcause;
885 #ifdef HAVE_EPOLL
886                                 ast_poll_channel_del(in, c);
887 #endif
888                                 ast_hangup(c);
889                                 c = o->chan = NULL;
890                                 ast_clear_flag64(o, DIAL_STILLGOING);
891                                 handle_cause(in->hangupcause, &num);
892                                 continue;
893                         }
894                         if (f->frametype == AST_FRAME_CONTROL) {
895                                 switch(f->subclass) {
896                                 case AST_CONTROL_ANSWER:
897                                         /* This is our guy if someone answered. */
898                                         if (!peer) {
899                                                 ast_verb(3, "%s answered %s\n", c->name, in->name);
900                                                 peer = c;
901                                                 if (peer->cdr) {
902                                                         peer->cdr->answer = ast_tvnow();
903                                                         peer->cdr->disposition = AST_CDR_ANSWERED;
904                                                 }
905                                                 ast_copy_flags64(peerflags, o,
906                                                         OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
907                                                         OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
908                                                         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
909                                                         OPT_CALLEE_PARK | OPT_CALLER_PARK |
910                                                         OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
911                                                         DIAL_NOFORWARDHTML);
912                                                 ast_string_field_set(c, dialcontext, "");
913                                                 ast_copy_string(c->exten, "", sizeof(c->exten));
914                                                 if (CAN_EARLY_BRIDGE(peerflags, in, peer))
915                                                         /* Setup early bridge if appropriate */
916                                                         ast_channel_early_bridge(in, peer);
917                                         }
918                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
919                                         in->hangupcause = AST_CAUSE_NORMAL_CLEARING;
920                                         c->hangupcause = AST_CAUSE_NORMAL_CLEARING;
921                                         break;
922                                 case AST_CONTROL_BUSY:
923                                         ast_verb(3, "%s is busy\n", c->name);
924                                         in->hangupcause = c->hangupcause;
925                                         ast_hangup(c);
926                                         c = o->chan = NULL;
927                                         ast_clear_flag64(o, DIAL_STILLGOING);
928                                         handle_cause(AST_CAUSE_BUSY, &num);
929                                         break;
930                                 case AST_CONTROL_CONGESTION:
931                                         ast_verb(3, "%s is circuit-busy\n", c->name);
932                                         in->hangupcause = c->hangupcause;
933                                         ast_hangup(c);
934                                         c = o->chan = NULL;
935                                         ast_clear_flag64(o, DIAL_STILLGOING);
936                                         handle_cause(AST_CAUSE_CONGESTION, &num);
937                                         break;
938                                 case AST_CONTROL_RINGING:
939                                         ast_verb(3, "%s is ringing\n", c->name);
940                                         /* Setup early media if appropriate */
941                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
942                                                 ast_channel_early_bridge(in, c);
943                                         if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK)) {
944                                                 ast_indicate(in, AST_CONTROL_RINGING);
945                                                 pa->sentringing++;
946                                         }
947                                         break;
948                                 case AST_CONTROL_PROGRESS:
949                                         ast_verb(3, "%s is making progress passing it to %s\n", c->name, in->name);
950                                         /* Setup early media if appropriate */
951                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
952                                                 ast_channel_early_bridge(in, c);
953                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
954                                                 ast_indicate(in, AST_CONTROL_PROGRESS);
955                                         break;
956                                 case AST_CONTROL_VIDUPDATE:
957                                         ast_verb(3, "%s requested a video update, passing it to %s\n", c->name, in->name);
958                                         ast_indicate(in, AST_CONTROL_VIDUPDATE);
959                                         break;
960                                 case AST_CONTROL_SRCUPDATE:
961                                         ast_verb(3, "%s requested a source update, passing it to %s\n", c->name, in->name);
962                                         ast_indicate(in, AST_CONTROL_SRCUPDATE);
963                                         break;
964                                 case AST_CONTROL_PROCEEDING:
965                                         ast_verb(3, "%s is proceeding passing it to %s\n", c->name, in->name);
966                                         if (single && CAN_EARLY_BRIDGE(peerflags, in, c))
967                                                 ast_channel_early_bridge(in, c);
968                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
969                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
970                                         break;
971                                 case AST_CONTROL_HOLD:
972                                         ast_verb(3, "Call on %s placed on hold\n", c->name);
973                                         ast_indicate(in, AST_CONTROL_HOLD);
974                                         break;
975                                 case AST_CONTROL_UNHOLD:
976                                         ast_verb(3, "Call on %s left from hold\n", c->name);
977                                         ast_indicate(in, AST_CONTROL_UNHOLD);
978                                         break;
979                                 case AST_CONTROL_OFFHOOK:
980                                 case AST_CONTROL_FLASH:
981                                         /* Ignore going off hook and flash */
982                                         break;
983                                 case -1:
984                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK | OPT_MUSICBACK)) {
985                                                 ast_verb(3, "%s stopped sounds\n", c->name);
986                                                 ast_indicate(in, -1);
987                                                 pa->sentringing = 0;
988                                         }
989                                         break;
990                                 default:
991                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass);
992                                 }
993                         } else if (single) {
994                                 switch (f->frametype) {
995                                         case AST_FRAME_VOICE:
996                                         case AST_FRAME_IMAGE:
997                                         case AST_FRAME_TEXT:
998                                                 if (ast_write(in, f)) {
999                                                         ast_log(LOG_WARNING, "Unable to write frame\n");
1000                                                 }
1001                                                 break;
1002                                         case AST_FRAME_HTML:
1003                                                 if (!ast_test_flag64(outgoing, DIAL_NOFORWARDHTML) && ast_channel_sendhtml(in, f->subclass, f->data.ptr, f->datalen) == -1) {
1004                                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1005                                                 }
1006                                                 break;
1007                                         default:
1008                                                 break;
1009                                 }
1010                         }
1011                         ast_frfree(f);
1012                 } /* end for */
1013                 if (winner == in) {
1014                         struct ast_frame *f = ast_read(in);
1015 #if 0
1016                         if (f && (f->frametype != AST_FRAME_VOICE))
1017                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
1018                         else if (!f || (f->frametype != AST_FRAME_VOICE))
1019                                 printf("Hangup received on %s\n", in->name);
1020 #endif
1021                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP))) {
1022                                 /* Got hung up */
1023                                 *to = -1;
1024                                 strcpy(pa->status, "CANCEL");
1025                                 ast_cdr_noanswer(in->cdr);
1026                                 if (f) {
1027                                         if (f->data.uint32) {
1028                                                 in->hangupcause = f->data.uint32;
1029                                         }
1030                                         ast_frfree(f);
1031                                 }
1032                                 return NULL;
1033                         }
1034
1035                         /* now f is guaranteed non-NULL */
1036                         if (f->frametype == AST_FRAME_DTMF) {
1037                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
1038                                         const char *context;
1039                                         ast_channel_lock(in);
1040                                         context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
1041                                         if (onedigit_goto(in, context, (char) f->subclass, 1)) {
1042                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass);
1043                                                 *to = 0;
1044                                                 ast_cdr_noanswer(in->cdr);
1045                                                 *result = f->subclass;
1046                                                 strcpy(pa->status, "CANCEL");
1047                                                 ast_frfree(f);
1048                                                 ast_channel_unlock(in);
1049                                                 return NULL;
1050                                         }
1051                                         ast_channel_unlock(in);
1052                                 }
1053
1054                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) &&
1055                                                 (f->subclass == '*')) { /* hmm it it not guaranteed to be '*' anymore. */
1056                                         ast_verb(3, "User hit %c to disconnect call.\n", f->subclass);
1057                                         *to = 0;
1058                                         strcpy(pa->status, "CANCEL");
1059                                         ast_cdr_noanswer(in->cdr);
1060                                         ast_frfree(f);
1061                                         return NULL;
1062                                 }
1063                         }
1064
1065                         /* Forward HTML stuff */
1066                         if (single && (f->frametype == AST_FRAME_HTML) && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML))
1067                                 if (ast_channel_sendhtml(outgoing->chan, f->subclass, f->data.ptr, f->datalen) == -1)
1068                                         ast_log(LOG_WARNING, "Unable to send URL\n");
1069
1070                         if (single && ((f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_DTMF_BEGIN) || (f->frametype == AST_FRAME_DTMF_END)))  {
1071                                 if (ast_write(outgoing->chan, f))
1072                                         ast_log(LOG_WARNING, "Unable to forward voice or dtmf\n");
1073                         }
1074                         if (single && (f->frametype == AST_FRAME_CONTROL) &&
1075                                 ((f->subclass == AST_CONTROL_HOLD) ||
1076                                 (f->subclass == AST_CONTROL_UNHOLD) ||
1077                                 (f->subclass == AST_CONTROL_VIDUPDATE) ||
1078                                  (f->subclass == AST_CONTROL_SRCUPDATE))) {
1079                                 ast_verb(3, "%s requested special control %d, passing it to %s\n", in->name, f->subclass, outgoing->chan->name);
1080                                 ast_indicate_data(outgoing->chan, f->subclass, f->data.ptr, f->datalen);
1081                         }
1082                         ast_frfree(f);
1083                 }
1084                 if (!*to)
1085                         ast_verb(3, "Nobody picked up in %d ms\n", orig);
1086                 if (!*to || ast_check_hangup(in))
1087                         ast_cdr_noanswer(in->cdr);
1088         }
1089
1090 #ifdef HAVE_EPOLL
1091         for (epollo = outgoing; epollo; epollo = epollo->next) {
1092                 if (epollo->chan)
1093                         ast_poll_channel_del(in, epollo->chan);
1094         }
1095 #endif
1096
1097         return peer;
1098 }
1099
1100 static void replace_macro_delimiter(char *s)
1101 {
1102         for (; *s; s++)
1103                 if (*s == '^')
1104                         *s = ',';
1105 }
1106
1107 /* returns true if there is a valid privacy reply */
1108 static int valid_priv_reply(struct ast_flags64 *opts, int res)
1109 {
1110         if (res < '1')
1111                 return 0;
1112         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
1113                 return 1;
1114         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
1115                 return 1;
1116         return 0;
1117 }
1118
1119 static int do_timelimit(struct ast_channel *chan, struct ast_bridge_config *config,
1120         char *parse, struct timeval *calldurationlimit)
1121 {
1122         char *stringp = ast_strdupa(parse);
1123         char *limit_str, *warning_str, *warnfreq_str;
1124         const char *var;
1125         int play_to_caller = 0, play_to_callee = 0;
1126         int delta;
1127
1128         limit_str = strsep(&stringp, ":");
1129         warning_str = strsep(&stringp, ":");
1130         warnfreq_str = strsep(&stringp, ":");
1131
1132         config->timelimit = atol(limit_str);
1133         if (warning_str)
1134                 config->play_warning = atol(warning_str);
1135         if (warnfreq_str)
1136                 config->warning_freq = atol(warnfreq_str);
1137
1138         if (!config->timelimit) {
1139                 ast_log(LOG_WARNING, "Dial does not accept L(%s), hanging up.\n", limit_str);
1140                 config->timelimit = config->play_warning = config->warning_freq = 0;
1141                 config->warning_sound = NULL;
1142                 return -1; /* error */
1143         } else if ( (delta = config->play_warning - config->timelimit) > 0) {
1144                 int w = config->warning_freq;
1145
1146                 /* If the first warning is requested _after_ the entire call would end,
1147                    and no warning frequency is requested, then turn off the warning. If
1148                    a warning frequency is requested, reduce the 'first warning' time by
1149                    that frequency until it falls within the call's total time limit.
1150                    Graphically:
1151                                   timelim->|    delta        |<-playwarning
1152                         0__________________|_________________|
1153                                          | w  |    |    |    |
1154
1155                    so the number of intervals to cut is 1+(delta-1)/w
1156                 */
1157
1158                 if (w == 0) {
1159                         config->play_warning = 0;
1160                 } else {
1161                         config->play_warning -= w * ( 1 + (delta-1)/w );
1162                         if (config->play_warning < 1)
1163                                 config->play_warning = config->warning_freq = 0;
1164                 }
1165         }
1166         
1167         ast_channel_lock(chan);
1168
1169         var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLER");
1170
1171         play_to_caller = var ? ast_true(var) : 1;
1172
1173         var = pbx_builtin_getvar_helper(chan, "LIMIT_PLAYAUDIO_CALLEE");
1174         play_to_callee = var ? ast_true(var) : 0;
1175
1176         if (!play_to_caller && !play_to_callee)
1177                 play_to_caller = 1;
1178
1179         var = pbx_builtin_getvar_helper(chan, "LIMIT_WARNING_FILE");
1180         config->warning_sound = !ast_strlen_zero(var) ? ast_strdup(var) : ast_strdup("timeleft");
1181
1182         /* The code looking at config wants a NULL, not just "", to decide
1183          * that the message should not be played, so we replace "" with NULL.
1184          * Note, pbx_builtin_getvar_helper _can_ return NULL if the variable is
1185          * not found.
1186          */
1187
1188         var = pbx_builtin_getvar_helper(chan, "LIMIT_TIMEOUT_FILE");
1189         config->end_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
1190
1191         var = pbx_builtin_getvar_helper(chan, "LIMIT_CONNECT_FILE");
1192         config->start_sound = !ast_strlen_zero(var) ? ast_strdup(var) : NULL;
1193
1194         ast_channel_unlock(chan);
1195
1196         /* undo effect of S(x) in case they are both used */
1197         calldurationlimit->tv_sec = 0;
1198         calldurationlimit->tv_usec = 0;
1199
1200         /* more efficient to do it like S(x) does since no advanced opts */
1201         if (!config->play_warning && !config->start_sound && !config->end_sound && config->timelimit) {
1202                 calldurationlimit->tv_sec = config->timelimit / 1000;
1203                 calldurationlimit->tv_usec = (config->timelimit % 1000) * 1000;
1204                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n",
1205                         calldurationlimit->tv_sec + calldurationlimit->tv_usec / 1000000.0);
1206                 config->timelimit = play_to_caller = play_to_callee =
1207                 config->play_warning = config->warning_freq = 0;
1208         } else {
1209                 ast_verb(3, "Limit Data for this call:\n");
1210                 ast_verb(4, "timelimit      = %ld\n", config->timelimit);
1211                 ast_verb(4, "play_warning   = %ld\n", config->play_warning);
1212                 ast_verb(4, "play_to_caller = %s\n", play_to_caller ? "yes" : "no");
1213                 ast_verb(4, "play_to_callee = %s\n", play_to_callee ? "yes" : "no");
1214                 ast_verb(4, "warning_freq   = %ld\n", config->warning_freq);
1215                 ast_verb(4, "start_sound    = %s\n", S_OR(config->start_sound, ""));
1216                 ast_verb(4, "warning_sound  = %s\n", config->warning_sound);
1217                 ast_verb(4, "end_sound      = %s\n", S_OR(config->end_sound, ""));
1218         }
1219         if (play_to_caller)
1220                 ast_set_flag(&(config->features_caller), AST_FEATURE_PLAY_WARNING);
1221         if (play_to_callee)
1222                 ast_set_flag(&(config->features_callee), AST_FEATURE_PLAY_WARNING);
1223         return 0;
1224 }
1225
1226 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
1227         struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
1228 {
1229
1230         int res2;
1231         int loopcount = 0;
1232
1233         /* Get the user's intro, store it in priv-callerintros/$CID,
1234            unless it is already there-- this should be done before the
1235            call is actually dialed  */
1236
1237         /* all ring indications and moh for the caller has been halted as soon as the
1238            target extension was picked up. We are going to have to kill some
1239            time and make the caller believe the peer hasn't picked up yet */
1240
1241         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1242                 char *original_moh = ast_strdupa(chan->musicclass);
1243                 ast_indicate(chan, -1);
1244                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1245                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1246                 ast_string_field_set(chan, musicclass, original_moh);
1247         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1248                 ast_indicate(chan, AST_CONTROL_RINGING);
1249                 pa->sentringing++;
1250         }
1251
1252         /* Start autoservice on the other chan ?? */
1253         res2 = ast_autoservice_start(chan);
1254         /* Now Stream the File */
1255         for (loopcount = 0; loopcount < 3; loopcount++) {
1256                 if (res2 && loopcount == 0) /* error in ast_autoservice_start() */
1257                         break;
1258                 if (!res2) /* on timeout, play the message again */
1259                         res2 = ast_play_and_wait(peer, "priv-callpending");
1260                 if (!valid_priv_reply(opts, res2))
1261                         res2 = 0;
1262                 /* priv-callpending script:
1263                    "I have a caller waiting, who introduces themselves as:"
1264                 */
1265                 if (!res2)
1266                         res2 = ast_play_and_wait(peer, pa->privintro);
1267                 if (!valid_priv_reply(opts, res2))
1268                         res2 = 0;
1269                 /* now get input from the called party, as to their choice */
1270                 if (!res2) {
1271                         /* XXX can we have both, or they are mutually exclusive ? */
1272                         if (ast_test_flag64(opts, OPT_PRIVACY))
1273                                 res2 = ast_play_and_wait(peer, "priv-callee-options");
1274                         if (ast_test_flag64(opts, OPT_SCREENING))
1275                                 res2 = ast_play_and_wait(peer, "screen-callee-options");
1276                 }
1277                 /*! \page DialPrivacy Dial Privacy scripts
1278                 \par priv-callee-options script:
1279                         "Dial 1 if you wish this caller to reach you directly in the future,
1280                                 and immediately connect to their incoming call
1281                          Dial 2 if you wish to send this caller to voicemail now and
1282                                 forevermore.
1283                          Dial 3 to send this caller to the torture menus, now and forevermore.
1284                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1285                          Dial 5 to allow this caller to come straight thru to you in the future,
1286                                 but right now, just this once, send them to voicemail."
1287                 \par screen-callee-options script:
1288                         "Dial 1 if you wish to immediately connect to the incoming call
1289                          Dial 2 if you wish to send this caller to voicemail.
1290                          Dial 3 to send this caller to the torture menus.
1291                          Dial 4 to send this caller to a simple "go away" menu.
1292                 */
1293                 if (valid_priv_reply(opts, res2))
1294                         break;
1295                 /* invalid option */
1296                 res2 = ast_play_and_wait(peer, "vm-sorry");
1297         }
1298
1299         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1300                 ast_moh_stop(chan);
1301         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1302                 ast_indicate(chan, -1);
1303                 pa->sentringing = 0;
1304         }
1305         ast_autoservice_stop(chan);
1306         if (ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1307                 /* map keypresses to various things, the index is res2 - '1' */
1308                 static const char *_val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1309                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1310                 int i = res2 - '1';
1311                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1312                         opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1313                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1314         }
1315         switch (res2) {
1316         case '1':
1317                 break;
1318         case '2':
1319                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1320                 break;
1321         case '3':
1322                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1323                 break;
1324         case '4':
1325                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1326                 break;
1327         case '5':
1328                 /* XXX should we set status to DENY ? */
1329                 if (ast_test_flag64(opts, OPT_PRIVACY))
1330                         break;
1331                 /* if not privacy, then 5 is the same as "default" case */
1332         default: /* bad input or -1 if failure to start autoservice */
1333                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1334                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1335                           or,... put 'em thru to voicemail. */
1336                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1337                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1338                 /* XXX should we set status to DENY ? */
1339                 /* XXX what about the privacy flags ? */
1340                 break;
1341         }
1342
1343         if (res2 == '1') { /* the only case where we actually connect */
1344                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll
1345                    just clog things up, and it's not useful information, not being tied to a CID */
1346                 if (strncmp(pa->privcid, "NOCALLERID", 10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO)) {
1347                         ast_filedelete(pa->privintro, NULL);
1348                         if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1349                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1350                         else
1351                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1352                 }
1353                 return 0; /* the good exit path */
1354         } else {
1355                 ast_hangup(peer); /* hang up on the callee -- he didn't want to talk anyway! */
1356                 return -1;
1357         }
1358 }
1359
1360 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1361 static int setup_privacy_args(struct privacy_args *pa,
1362         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1363 {
1364         char callerid[60];
1365         int res;
1366         char *l;
1367         int silencethreshold;
1368
1369         if (!ast_strlen_zero(chan->cid.cid_num)) {
1370                 l = ast_strdupa(chan->cid.cid_num);
1371                 ast_shrink_phone_number(l);
1372                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1373                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n", opt_args[OPT_ARG_PRIVACY], l);
1374                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1375                 } else {
1376                         ast_verb(3, "Privacy Screening, clid is '%s'\n", l);
1377                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1378                 }
1379         } else {
1380                 char *tnam, *tn2;
1381
1382                 tnam = ast_strdupa(chan->name);
1383                 /* clean the channel name so slashes don't try to end up in disk file name */
1384                 for (tn2 = tnam; *tn2; tn2++) {
1385                         if (*tn2 == '/')  /* any other chars to be afraid of? */
1386                                 *tn2 = '=';
1387                 }
1388                 ast_verb(3, "Privacy-- callerid is empty\n");
1389
1390                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", chan->exten, tnam);
1391                 l = callerid;
1392                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1393         }
1394
1395         ast_copy_string(pa->privcid, l, sizeof(pa->privcid));
1396
1397         if (strncmp(pa->privcid, "NOCALLERID", 10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCLID)) {
1398                 /* if callerid is set and OPT_SCREEN_NOCLID is set also */
1399                 ast_verb(3, "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1400                 pa->privdb_val = AST_PRIVACY_ALLOW;
1401         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCLID) && strncmp(pa->privcid, "NOCALLERID", 10) == 0) {
1402                 ast_verb(3, "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1403         }
1404         
1405         if (pa->privdb_val == AST_PRIVACY_DENY) {
1406                 ast_verb(3, "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1407                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1408                 return 0;
1409         } else if (pa->privdb_val == AST_PRIVACY_KILL) {
1410                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1411                 return 0; /* Is this right? */
1412         } else if (pa->privdb_val == AST_PRIVACY_TORTURE) {
1413                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1414                 return 0; /* is this right??? */
1415         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN) {
1416                 /* Get the user's intro, store it in priv-callerintros/$CID,
1417                    unless it is already there-- this should be done before the
1418                    call is actually dialed  */
1419
1420                 /* make sure the priv-callerintros dir actually exists */
1421                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1422                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1423                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1424                         return -1;
1425                 }
1426
1427                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1428                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1429                         /* the DELUX version of this code would allow this caller the
1430                            option to hear and retape their previously recorded intro.
1431                         */
1432                 } else {
1433                         int duration; /* for feedback from play_and_wait */
1434                         /* the file doesn't exist yet. Let the caller submit his
1435                            vocal intro for posterity */
1436                         /* priv-recordintro script:
1437
1438                            "At the tone, please say your name:"
1439
1440                         */
1441                         silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);
1442                         ast_answer(chan);
1443                         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 */
1444                                                                         /* don't think we'll need a lock removed, we took care of
1445                                                                            conflicts by naming the pa.privintro file */
1446                         if (res == -1) {
1447                                 /* Delete the file regardless since they hung up during recording */
1448                                 ast_filedelete(pa->privintro, NULL);
1449                                 if (ast_fileexists(pa->privintro, NULL, NULL) > 0)
1450                                         ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1451                                 else
1452                                         ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1453                                 return -1;
1454                         }
1455                         if (!ast_streamfile(chan, "vm-dialout", chan->language) )
1456                                 ast_waitstream(chan, "");
1457                 }
1458         }
1459         return 1; /* success */
1460 }
1461
1462 static void end_bridge_callback(void *data)
1463 {
1464         char buf[80];
1465         time_t end;
1466         struct ast_channel *chan = data;
1467
1468         if (!chan->cdr) {
1469                 return;
1470         }
1471
1472         time(&end);
1473
1474         ast_channel_lock(chan);
1475         if (chan->cdr->answer.tv_sec) {
1476                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->answer.tv_sec);
1477                 pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", buf);
1478         }
1479
1480         if (chan->cdr->start.tv_sec) {
1481                 snprintf(buf, sizeof(buf), "%ld", end - chan->cdr->start.tv_sec);
1482                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", buf);
1483         }
1484         ast_channel_unlock(chan);
1485 }
1486
1487 static void end_bridge_callback_data_fixup(struct ast_bridge_config *bconfig, struct ast_channel *originator, struct ast_channel *terminator) {
1488         bconfig->end_bridge_callback_data = originator;
1489 }
1490
1491 static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags64 *peerflags, int *continue_exec)
1492 {
1493         int res = -1; /* default: error */
1494         char *rest, *cur; /* scan the list of destinations */
1495         struct chanlist *outgoing = NULL; /* list of destinations */
1496         struct ast_channel *peer;
1497         int to; /* timeout */
1498         struct cause_args num = { chan, 0, 0, 0 };
1499         int cause;
1500         char numsubst[256];
1501         char cidname[AST_MAX_EXTENSION] = "";
1502
1503         struct ast_bridge_config config = { { 0, } };
1504         struct timeval calldurationlimit = { 0, };
1505         char *dtmfcalled = NULL, *dtmfcalling = NULL;
1506         struct privacy_args pa = {
1507                 .sentringing = 0,
1508                 .privdb_val = 0,
1509                 .status = "INVALIDARGS",
1510         };
1511         int sentringing = 0, moh = 0;
1512         const char *outbound_group = NULL;
1513         int result = 0;
1514         char *parse;
1515         int opermode = 0;
1516         AST_DECLARE_APP_ARGS(args,
1517                 AST_APP_ARG(peers);
1518                 AST_APP_ARG(timeout);
1519                 AST_APP_ARG(options);
1520                 AST_APP_ARG(url);
1521         );
1522         struct ast_flags64 opts = { 0, };
1523         char *opt_args[OPT_ARG_ARRAY_SIZE];
1524         struct ast_datastore *datastore = NULL;
1525         int fulldial = 0, num_dialed = 0;
1526
1527         /* Reset all DIAL variables back to blank, to prevent confusion (in case we don't reset all of them). */
1528         pbx_builtin_setvar_helper(chan, "DIALSTATUS", "");
1529         pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", "");
1530         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", "");
1531         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", "");
1532         pbx_builtin_setvar_helper(chan, "DIALEDTIME", "");
1533
1534         if (ast_strlen_zero(data)) {
1535                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1536                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1537                 return -1;
1538         }
1539
1540         parse = ast_strdupa(data);
1541
1542         AST_STANDARD_APP_ARGS(args, parse);
1543
1544         if (!ast_strlen_zero(args.options) &&
1545                 ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
1546                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1547                 goto done;
1548         }
1549
1550         if (ast_strlen_zero(args.peers)) {
1551                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1552                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1553                 goto done;
1554         }
1555
1556
1557         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
1558                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
1559                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
1560         }
1561         
1562         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
1563                 calldurationlimit.tv_sec = atoi(opt_args[OPT_ARG_DURATION_STOP]);
1564                 if (!calldurationlimit.tv_sec) {
1565                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
1566                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1567                         goto done;
1568                 }
1569                 ast_verb(3, "Setting call duration limit to %.3lf seconds.\n", calldurationlimit.tv_sec + calldurationlimit.tv_usec / 1000000.0);
1570         }
1571
1572         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
1573                 dtmfcalling = opt_args[OPT_ARG_SENDDTMF];
1574                 dtmfcalled = strsep(&dtmfcalling, ":");
1575         }
1576
1577         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
1578                 if (do_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
1579                         goto done;
1580         }
1581
1582         if (ast_test_flag64(&opts, OPT_RESETCDR) && chan->cdr)
1583                 ast_cdr_reset(chan->cdr, NULL);
1584         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
1585                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(chan->exten);
1586
1587         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
1588                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
1589                 if (res <= 0)
1590                         goto out;
1591                 res = -1; /* reset default */
1592         }
1593
1594         if (ast_test_flag64(&opts, OPT_DTMF_EXIT)) {
1595                 __ast_answer(chan, 0, 0);
1596         }
1597
1598         if (continue_exec)
1599                 *continue_exec = 0;
1600
1601         /* If a channel group has been specified, get it for use when we create peer channels */
1602
1603         ast_channel_lock(chan);
1604         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
1605                 outbound_group = ast_strdupa(outbound_group);   
1606                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
1607         } else if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP"))) {
1608                 outbound_group = ast_strdupa(outbound_group);
1609         }
1610         ast_channel_unlock(chan);       
1611         ast_copy_flags64(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING);
1612
1613         /* loop through the list of dial destinations */
1614         rest = args.peers;
1615         while ((cur = strsep(&rest, "&")) ) {
1616                 struct chanlist *tmp;
1617                 struct ast_channel *tc; /* channel for this destination */
1618                 /* Get a technology/[device:]number pair */
1619                 char *number = cur;
1620                 char *interface = ast_strdupa(number);
1621                 char *tech = strsep(&number, "/");
1622                 /* find if we already dialed this interface */
1623                 struct ast_dialed_interface *di;
1624                 AST_LIST_HEAD(, ast_dialed_interface) *dialed_interfaces;
1625                 num_dialed++;
1626                 if (!number) {
1627                         ast_log(LOG_WARNING, "Dial argument takes format (technology/[device:]number1)\n");
1628                         goto out;
1629                 }
1630                 if (!(tmp = ast_calloc(1, sizeof(*tmp))))
1631                         goto out;
1632                 if (opts.flags) {
1633                         ast_copy_flags64(tmp, &opts,
1634                                 OPT_CANCEL_ELSEWHERE |
1635                                 OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1636                                 OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1637                                 OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1638                                 OPT_CALLEE_PARK | OPT_CALLER_PARK |
1639                                 OPT_CALLEE_MIXMONITOR | OPT_CALLER_MIXMONITOR |
1640                                 OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID);
1641                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);
1642                 }
1643                 ast_copy_string(numsubst, number, sizeof(numsubst));
1644                 /* Request the peer */
1645
1646                 ast_channel_lock(chan);
1647                 datastore = ast_channel_datastore_find(chan, &dialed_interface_info, NULL);
1648                 ast_channel_unlock(chan);
1649
1650                 if (datastore)
1651                         dialed_interfaces = datastore->data;
1652                 else {
1653                         if (!(datastore = ast_datastore_alloc(&dialed_interface_info, NULL))) {
1654                                 ast_log(LOG_WARNING, "Unable to create channel datastore for dialed interfaces. Aborting!\n");
1655                                 ast_free(tmp);
1656                                 goto out;
1657                         }
1658
1659                         datastore->inheritance = DATASTORE_INHERIT_FOREVER;
1660
1661                         if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
1662                                 ast_free(tmp);
1663                                 goto out;
1664                         }
1665
1666                         datastore->data = dialed_interfaces;
1667                         AST_LIST_HEAD_INIT(dialed_interfaces);
1668
1669                         ast_channel_lock(chan);
1670                         ast_channel_datastore_add(chan, datastore);
1671                         ast_channel_unlock(chan);
1672                 }
1673
1674                 AST_LIST_LOCK(dialed_interfaces);
1675                 AST_LIST_TRAVERSE(dialed_interfaces, di, list) {
1676                         if (!strcasecmp(di->interface, interface)) {
1677                                 ast_log(LOG_WARNING, "Skipping dialing interface '%s' again since it has already been dialed\n",
1678                                         di->interface);
1679                                 break;
1680                         }
1681                 }
1682                 AST_LIST_UNLOCK(dialed_interfaces);
1683
1684                 if (di) {
1685                         fulldial++;
1686                         ast_free(tmp);
1687                         continue;
1688                 }
1689
1690                 /* It is always ok to dial a Local interface.  We only keep track of
1691                  * which "real" interfaces have been dialed.  The Local channel will
1692                  * inherit this list so that if it ends up dialing a real interface,
1693                  * it won't call one that has already been called. */
1694                 if (strcasecmp(tech, "Local")) {
1695                         if (!(di = ast_calloc(1, sizeof(*di) + strlen(interface)))) {
1696                                 AST_LIST_UNLOCK(dialed_interfaces);
1697                                 ast_free(tmp);
1698                                 goto out;
1699                         }
1700                         strcpy(di->interface, interface);
1701
1702                         AST_LIST_LOCK(dialed_interfaces);
1703                         AST_LIST_INSERT_TAIL(dialed_interfaces, di, list);
1704                         AST_LIST_UNLOCK(dialed_interfaces);
1705                 }
1706
1707                 tc = ast_request(tech, chan->nativeformats, numsubst, &cause);
1708                 if (!tc) {
1709                         /* If we can't, just go on to the next call */
1710                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
1711                                 tech, cause, ast_cause2str(cause));
1712                         handle_cause(cause, &num);
1713                         if (!rest) /* we are on the last destination */
1714                                 chan->hangupcause = cause;
1715                         ast_free(tmp);
1716                         continue;
1717                 }
1718                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", numsubst);
1719
1720                 /* Setup outgoing SDP to match incoming one */
1721                 ast_rtp_make_compatible(tc, chan, !outgoing && !rest);
1722                 
1723                 /* Inherit specially named variables from parent channel */
1724                 ast_channel_inherit_variables(chan, tc);
1725                 ast_channel_datastore_inherit(chan, tc);
1726
1727                 tc->appl = "AppDial";
1728                 tc->data = "(Outgoing Line)";
1729                 memset(&tc->whentohangup, 0, sizeof(tc->whentohangup));
1730
1731                 S_REPLACE(tc->cid.cid_num, ast_strdup(chan->cid.cid_num));
1732                 S_REPLACE(tc->cid.cid_name, ast_strdup(chan->cid.cid_name));
1733                 S_REPLACE(tc->cid.cid_ani, ast_strdup(chan->cid.cid_ani));
1734                 S_REPLACE(tc->cid.cid_rdnis, ast_strdup(chan->cid.cid_rdnis));
1735                 
1736                 ast_string_field_set(tc, accountcode, chan->accountcode);
1737                 tc->cdrflags = chan->cdrflags;
1738                 if (ast_strlen_zero(tc->musicclass))
1739                         ast_string_field_set(tc, musicclass, chan->musicclass);
1740                 /* Pass callingpres, type of number, tns, ADSI CPE, transfer capability */
1741                 tc->cid.cid_pres = chan->cid.cid_pres;
1742                 tc->cid.cid_ton = chan->cid.cid_ton;
1743                 tc->cid.cid_tns = chan->cid.cid_tns;
1744                 tc->cid.cid_ani2 = chan->cid.cid_ani2;
1745                 tc->adsicpe = chan->adsicpe;
1746                 tc->transfercapability = chan->transfercapability;
1747
1748                 /* If we have an outbound group, set this peer channel to it */
1749                 if (outbound_group)
1750                         ast_app_group_set_channel(tc, outbound_group);
1751                 /* If the calling channel has the ANSWERED_ELSEWHERE flag set, inherit it. This is to support local channels */
1752                 if (ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE))
1753                         ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1754
1755                 /* Check if we're forced by configuration */
1756                 if (ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE))
1757                          ast_set_flag(tc, AST_FLAG_ANSWERED_ELSEWHERE);
1758
1759
1760                 /* Inherit context and extension */
1761                 ast_string_field_set(tc, dialcontext, ast_strlen_zero(chan->macrocontext) ? chan->context : chan->macrocontext);
1762                 if (!ast_strlen_zero(chan->macroexten))
1763                         ast_copy_string(tc->exten, chan->macroexten, sizeof(tc->exten));
1764                 else
1765                         ast_copy_string(tc->exten, chan->exten, sizeof(tc->exten));
1766
1767                 res = ast_call(tc, numsubst, 0); /* Place the call, but don't wait on the answer */
1768
1769                 /* Save the info in cdr's that we called them */
1770                 if (chan->cdr)
1771                         ast_cdr_setdestchan(chan->cdr, tc->name);
1772
1773                 /* check the results of ast_call */
1774                 if (res) {
1775                         /* Again, keep going even if there's an error */
1776                         ast_debug(1, "ast call on peer returned %d\n", res);
1777                         ast_verb(3, "Couldn't call %s\n", numsubst);
1778                         if (tc->hangupcause) {
1779                                 chan->hangupcause = tc->hangupcause;
1780                         }
1781                         ast_hangup(tc);
1782                         tc = NULL;
1783                         ast_free(tmp);
1784                         continue;
1785                 } else {
1786                         senddialevent(chan, tc, numsubst);
1787                         ast_verb(3, "Called %s\n", numsubst);
1788                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID))
1789                                 ast_set_callerid(tc, S_OR(chan->macroexten, chan->exten), get_cid_name(cidname, sizeof(cidname), chan), NULL);
1790                 }
1791                 /* Put them in the list of outgoing thingies...  We're ready now.
1792                    XXX If we're forcibly removed, these outgoing calls won't get
1793                    hung up XXX */
1794                 ast_set_flag64(tmp, DIAL_STILLGOING);
1795                 tmp->chan = tc;
1796                 tmp->next = outgoing;
1797                 outgoing = tmp;
1798                 /* If this line is up, don't try anybody else */
1799                 if (outgoing->chan->_state == AST_STATE_UP)
1800                         break;
1801         }
1802         
1803         if (ast_strlen_zero(args.timeout)) {
1804                 to = -1;
1805         } else {
1806                 to = atoi(args.timeout);
1807                 if (to > 0)
1808                         to *= 1000;
1809                 else {
1810                         ast_log(LOG_WARNING, "Invalid timeout specified: '%s'. Setting timeout to infinite\n", args.timeout);
1811                         to = -1;
1812                 }
1813         }
1814
1815         if (!outgoing) {
1816                 strcpy(pa.status, "CHANUNAVAIL");
1817                 if (fulldial == num_dialed) {
1818                         res = -1;
1819                         goto out;
1820                 }
1821         } else {
1822                 /* Our status will at least be NOANSWER */
1823                 strcpy(pa.status, "NOANSWER");
1824                 if (ast_test_flag64(outgoing, OPT_MUSICBACK)) {
1825                         moh = 1;
1826                         if (!ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1827                                 char *original_moh = ast_strdupa(chan->musicclass);
1828                                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1829                                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1830                                 ast_string_field_set(chan, musicclass, original_moh);
1831                         } else {
1832                                 ast_moh_start(chan, NULL, NULL);
1833                         }
1834                         ast_indicate(chan, AST_CONTROL_PROGRESS);
1835                 } else if (ast_test_flag64(outgoing, OPT_RINGBACK)) {
1836                         ast_indicate(chan, AST_CONTROL_RINGING);
1837                         sentringing++;
1838                 }
1839         }
1840
1841         peer = wait_for_answer(chan, outgoing, &to, peerflags, &pa, &num, &result);
1842
1843         /* The ast_channel_datastore_remove() function could fail here if the
1844          * datastore was moved to another channel during a masquerade. If this is
1845          * the case, don't free the datastore here because later, when the channel
1846          * to which the datastore was moved hangs up, it will attempt to free this
1847          * datastore again, causing a crash
1848          */
1849         if (!ast_channel_datastore_remove(chan, datastore))
1850                 ast_datastore_free(datastore);
1851         if (!peer) {
1852                 if (result) {
1853                         res = result;
1854                 } else if (to) { /* Musta gotten hung up */
1855                         res = -1;
1856                 } else { /* Nobody answered, next please? */
1857                         res = 0;
1858                 }
1859
1860                 /* SIP, in particular, sends back this error code to indicate an
1861                  * overlap dialled number needs more digits. */
1862                 if (chan->hangupcause == AST_CAUSE_INVALID_NUMBER_FORMAT) {
1863                         res = AST_PBX_INCOMPLETE;
1864                 }
1865
1866                 /* almost done, although the 'else' block is 400 lines */
1867         } else {
1868                 const char *number;
1869
1870                 strcpy(pa.status, "ANSWER");
1871                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1872                 /* Ah ha!  Someone answered within the desired timeframe.  Of course after this
1873                    we will always return with -1 so that it is hung up properly after the
1874                    conversation.  */
1875                 hanguptree(outgoing, peer, 1);
1876                 outgoing = NULL;
1877                 /* If appropriate, log that we have a destination channel */
1878                 if (chan->cdr)
1879                         ast_cdr_setdestchan(chan->cdr, peer->name);
1880                 if (peer->name)
1881                         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", peer->name);
1882                 
1883                 ast_channel_lock(peer);
1884                 number = pbx_builtin_getvar_helper(peer, "DIALEDPEERNUMBER"); 
1885                 if (!number)
1886                         number = numsubst;
1887                 pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", number);
1888                 ast_channel_unlock(peer);
1889
1890                 if (!ast_strlen_zero(args.url) && ast_channel_supports_html(peer) ) {
1891                         ast_debug(1, "app_dial: sendurl=%s.\n", args.url);
1892                         ast_channel_sendurl( peer, args.url );
1893                 }
1894                 if ( (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) && pa.privdb_val == AST_PRIVACY_UNKNOWN) {
1895                         if (do_privacy(chan, peer, &opts, opt_args, &pa)) {
1896                                 res = 0;
1897                                 goto out;
1898                         }
1899                 }
1900                 if (!ast_test_flag64(&opts, OPT_ANNOUNCE) || ast_strlen_zero(opt_args[OPT_ARG_ANNOUNCE])) {
1901                         res = 0;
1902                 } else {
1903                         int digit = 0;
1904                         /* Start autoservice on the other chan */
1905                         res = ast_autoservice_start(chan);
1906                         /* Now Stream the File */
1907                         if (!res)
1908                                 res = ast_streamfile(peer, opt_args[OPT_ARG_ANNOUNCE], peer->language);
1909                         if (!res) {
1910                                 digit = ast_waitstream(peer, AST_DIGIT_ANY);
1911                         }
1912                         /* Ok, done. stop autoservice */
1913                         res = ast_autoservice_stop(chan);
1914                         if (digit > 0 && !res)
1915                                 res = ast_senddigit(chan, digit, 0);
1916                         else
1917                                 res = digit;
1918
1919                 }
1920
1921                 if (chan && peer && ast_test_flag64(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
1922                         replace_macro_delimiter(opt_args[OPT_ARG_GOTO]);
1923                         ast_parseable_goto(chan, opt_args[OPT_ARG_GOTO]);
1924                         /* peer goes to the same context and extension as chan, so just copy info from chan*/
1925                         ast_copy_string(peer->context, chan->context, sizeof(peer->context));
1926                         ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
1927                         peer->priority = chan->priority + 2;
1928                         ast_pbx_start(peer);
1929                         hanguptree(outgoing, NULL, ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE) ? 1 : 0);
1930                         if (continue_exec)
1931                                 *continue_exec = 1;
1932                         res = 0;
1933                         goto done;
1934                 }
1935
1936                 if (ast_test_flag64(&opts, OPT_CALLEE_MACRO) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_MACRO])) {
1937                         struct ast_app *theapp;
1938                         const char *macro_result;
1939
1940                         res = ast_autoservice_start(chan);
1941                         if (res) {
1942                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
1943                                 res = -1;
1944                         }
1945
1946                         theapp = pbx_findapp("Macro");
1947
1948                         if (theapp && !res) { /* XXX why check res here ? */
1949                                 /* Set peer->exten and peer->context so that MACRO_EXTEN and MACRO_CONTEXT get set */
1950                                 ast_copy_string(peer->context, chan->context, sizeof(peer->context));
1951                                 ast_copy_string(peer->exten, chan->exten, sizeof(peer->exten));
1952
1953                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_MACRO]);
1954                                 res = pbx_exec(peer, theapp, opt_args[OPT_ARG_CALLEE_MACRO]);
1955                                 ast_debug(1, "Macro exited with status %d\n", res);
1956                                 res = 0;
1957                         } else {
1958                                 ast_log(LOG_ERROR, "Could not find application Macro\n");
1959                                 res = -1;
1960                         }
1961
1962                         if (ast_autoservice_stop(chan) < 0) {
1963                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
1964                                 res = -1;
1965                         }
1966
1967                         ast_channel_lock(peer);
1968
1969                         if (!res && (macro_result = pbx_builtin_getvar_helper(peer, "MACRO_RESULT"))) {
1970                                 char *macro_transfer_dest;
1971
1972                                 if (!strcasecmp(macro_result, "BUSY")) {
1973                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
1974                                         ast_set_flag64(peerflags, OPT_GO_ON);
1975                                         res = -1;
1976                                 } else if (!strcasecmp(macro_result, "CONGESTION") || !strcasecmp(macro_result, "CHANUNAVAIL")) {
1977                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
1978                                         ast_set_flag64(peerflags, OPT_GO_ON);
1979                                         res = -1;
1980                                 } else if (!strcasecmp(macro_result, "CONTINUE")) {
1981                                         /* hangup peer and keep chan alive assuming the macro has changed
1982                                            the context / exten / priority or perhaps
1983                                            the next priority in the current exten is desired.
1984                                         */
1985                                         ast_set_flag64(peerflags, OPT_GO_ON);
1986                                         res = -1;
1987                                 } else if (!strcasecmp(macro_result, "ABORT")) {
1988                                         /* Hangup both ends unless the caller has the g flag */
1989                                         res = -1;
1990                                 } else if (!strncasecmp(macro_result, "GOTO:", 5) && (macro_transfer_dest = ast_strdupa(macro_result + 5))) {
1991                                         res = -1;
1992                                         /* perform a transfer to a new extension */
1993                                         if (strchr(macro_transfer_dest, '^')) { /* context^exten^priority*/
1994                                                 replace_macro_delimiter(macro_transfer_dest);
1995                                                 if (!ast_parseable_goto(chan, macro_transfer_dest))
1996                                                         ast_set_flag64(peerflags, OPT_GO_ON);
1997                                         }
1998                                 }
1999                         }
2000
2001                         ast_channel_unlock(peer);
2002                 }
2003
2004                 if (ast_test_flag64(&opts, OPT_CALLEE_GOSUB) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GOSUB])) {
2005                         struct ast_app *theapp;
2006                         const char *gosub_result;
2007                         char *gosub_args, *gosub_argstart;
2008                         int res9 = -1;
2009
2010                         res9 = ast_autoservice_start(chan);
2011                         if (res9) {
2012                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
2013                                 res9 = -1;
2014                         }
2015
2016                         theapp = pbx_findapp("Gosub");
2017
2018                         if (theapp && !res9) {
2019                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GOSUB]);
2020
2021                                 /* Set where we came from */
2022                                 ast_copy_string(peer->context, "app_dial_gosub_virtual_context", sizeof(peer->context));
2023                                 ast_copy_string(peer->exten, "s", sizeof(peer->exten));
2024                                 peer->priority = 0;
2025
2026                                 gosub_argstart = strchr(opt_args[OPT_ARG_CALLEE_GOSUB], ',');
2027                                 if (gosub_argstart) {
2028                                         *gosub_argstart = 0;
2029                                         if (asprintf(&gosub_args, "%s,s,1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], gosub_argstart + 1) < 0) {
2030                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2031                                                 gosub_args = NULL;
2032                                         }
2033                                         *gosub_argstart = ',';
2034                                 } else {
2035                                         if (asprintf(&gosub_args, "%s,s,1", opt_args[OPT_ARG_CALLEE_GOSUB]) < 0) {
2036                                                 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
2037                                                 gosub_args = NULL;
2038                                         }
2039                                 }
2040
2041                                 if (gosub_args) {
2042                                         res9 = pbx_exec(peer, theapp, gosub_args);
2043                                         if (!res9) {
2044                                                 struct ast_pbx_args args;
2045                                                 /* A struct initializer fails to compile for this case ... */
2046                                                 memset(&args, 0, sizeof(args));
2047                                                 args.no_hangup_chan = 1;
2048                                                 ast_pbx_run_args(peer, &args);
2049                                         }
2050                                         ast_free(gosub_args);
2051                                         ast_debug(1, "Gosub exited with status %d\n", res9);
2052                                 } else {
2053                                         ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
2054                                 }
2055
2056                         } else if (!res9) {
2057                                 ast_log(LOG_ERROR, "Could not find application Gosub\n");
2058                                 res9 = -1;
2059                         }
2060
2061                         if (ast_autoservice_stop(chan) < 0) {
2062                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
2063                                 res9 = -1;
2064                         }
2065                         
2066                         ast_channel_lock(peer);
2067
2068                         if (!res9 && (gosub_result = pbx_builtin_getvar_helper(peer, "GOSUB_RESULT"))) {
2069                                 char *gosub_transfer_dest;
2070
2071                                 if (!strcasecmp(gosub_result, "BUSY")) {
2072                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2073                                         ast_set_flag64(peerflags, OPT_GO_ON);
2074                                         res9 = -1;
2075                                 } else if (!strcasecmp(gosub_result, "CONGESTION") || !strcasecmp(gosub_result, "CHANUNAVAIL")) {
2076                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
2077                                         ast_set_flag64(peerflags, OPT_GO_ON);
2078                                         res9 = -1;
2079                                 } else if (!strcasecmp(gosub_result, "CONTINUE")) {
2080                                         /* hangup peer and keep chan alive assuming the macro has changed
2081                                            the context / exten / priority or perhaps
2082                                            the next priority in the current exten is desired.
2083                                         */
2084                                         ast_set_flag64(peerflags, OPT_GO_ON);
2085                                         res9 = -1;
2086                                 } else if (!strcasecmp(gosub_result, "ABORT")) {
2087                                         /* Hangup both ends unless the caller has the g flag */
2088                                         res9 = -1;
2089                                 } else if (!strncasecmp(gosub_result, "GOTO:", 5) && (gosub_transfer_dest = ast_strdupa(gosub_result + 5))) {
2090                                         res9 = -1;
2091                                         /* perform a transfer to a new extension */
2092                                         if (strchr(gosub_transfer_dest, '^')) { /* context^exten^priority*/
2093                                                 replace_macro_delimiter(gosub_transfer_dest);
2094                                                 if (!ast_parseable_goto(chan, gosub_transfer_dest))
2095                                                         ast_set_flag64(peerflags, OPT_GO_ON);
2096                                         }
2097                                 }
2098                         }
2099
2100                         ast_channel_unlock(peer);       
2101                 }
2102
2103                 if (!res) {
2104                         if (!ast_tvzero(calldurationlimit)) {
2105                                 struct timeval whentohangup = calldurationlimit;
2106                                 peer->whentohangup = ast_tvadd(ast_tvnow(), whentohangup);
2107                         }
2108                         if (!ast_strlen_zero(dtmfcalled)) {
2109                                 ast_verb(3, "Sending DTMF '%s' to the called party.\n", dtmfcalled);
2110                                 res = ast_dtmf_stream(peer, chan, dtmfcalled, 250, 0);
2111                         }
2112                         if (!ast_strlen_zero(dtmfcalling)) {
2113                                 ast_verb(3, "Sending DTMF '%s' to the calling party.\n", dtmfcalling);
2114                                 res = ast_dtmf_stream(chan, peer, dtmfcalling, 250, 0);
2115                         }
2116                 }
2117
2118                 if (res) { /* some error */
2119                         res = -1;
2120                 } else {
2121                         if (ast_test_flag64(peerflags, OPT_CALLEE_TRANSFER))
2122                                 ast_set_flag(&(config.features_callee), AST_FEATURE_REDIRECT);
2123                         if (ast_test_flag64(peerflags, OPT_CALLER_TRANSFER))
2124                                 ast_set_flag(&(config.features_caller), AST_FEATURE_REDIRECT);
2125                         if (ast_test_flag64(peerflags, OPT_CALLEE_HANGUP))
2126                                 ast_set_flag(&(config.features_callee), AST_FEATURE_DISCONNECT);
2127                         if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP))
2128                                 ast_set_flag(&(config.features_caller), AST_FEATURE_DISCONNECT);
2129                         if (ast_test_flag64(peerflags, OPT_CALLEE_MONITOR))
2130                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMON);
2131                         if (ast_test_flag64(peerflags, OPT_CALLER_MONITOR))
2132                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMON);
2133                         if (ast_test_flag64(peerflags, OPT_CALLEE_PARK))
2134                                 ast_set_flag(&(config.features_callee), AST_FEATURE_PARKCALL);
2135                         if (ast_test_flag64(peerflags, OPT_CALLER_PARK))
2136                                 ast_set_flag(&(config.features_caller), AST_FEATURE_PARKCALL);
2137                         if (ast_test_flag64(peerflags, OPT_CALLEE_MIXMONITOR))
2138                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMIXMON);
2139                         if (ast_test_flag64(peerflags, OPT_CALLER_MIXMONITOR))
2140                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMIXMON);
2141                         if (ast_test_flag64(peerflags, OPT_GO_ON))
2142                                 ast_set_flag(&(config.features_caller), AST_FEATURE_NO_H_EXTEN);
2143
2144                         config.end_bridge_callback = end_bridge_callback;
2145                         config.end_bridge_callback_data = chan;
2146                         config.end_bridge_callback_data_fixup = end_bridge_callback_data_fixup;
2147                         
2148                         if (moh) {
2149                                 moh = 0;
2150                                 ast_moh_stop(chan);
2151                         } else if (sentringing) {
2152                                 sentringing = 0;
2153                                 ast_indicate(chan, -1);
2154                         }
2155                         /* Be sure no generators are left on it */
2156                         ast_deactivate_generator(chan);
2157                         /* Make sure channels are compatible */
2158                         res = ast_channel_make_compatible(chan, peer);
2159                         if (res < 0) {
2160                                 ast_log(LOG_WARNING, "Had to drop call because I couldn't make %s compatible with %s\n", chan->name, peer->name);
2161                                 ast_hangup(peer);
2162                                 res = -1;
2163                                 goto done;
2164                         }
2165                         if (opermode) {
2166                                 struct oprmode oprmode;
2167
2168                                 oprmode.peer = peer;
2169                                 oprmode.mode = opermode;
2170
2171                                 ast_channel_setoption(chan, AST_OPTION_OPRMODE, &oprmode, sizeof(oprmode), 0);
2172                         }
2173                         res = ast_bridge_call(chan, peer, &config);
2174                 }
2175
2176                 strcpy(peer->context, chan->context);
2177
2178                 if (ast_test_flag64(&opts, OPT_PEER_H) && ast_exists_extension(peer, peer->context, "h", 1, peer->cid.cid_num)) {
2179                         int autoloopflag;
2180                         int found;
2181                         int res9;
2182                         
2183                         strcpy(peer->exten, "h");
2184                         peer->priority = 1;
2185                         autoloopflag = ast_test_flag(peer, AST_FLAG_IN_AUTOLOOP); /* save value to restore at the end */
2186                         ast_set_flag(peer, AST_FLAG_IN_AUTOLOOP);
2187
2188                         while ((res9 = ast_spawn_extension(peer, peer->context, peer->exten, peer->priority, peer->cid.cid_num, &found, 1)) == 0)
2189                                 peer->priority++;
2190
2191                         if (found && res9) {
2192                                 /* Something bad happened, or a hangup has been requested. */
2193                                 ast_debug(1, "Spawn extension (%s,%s,%d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2194                                 ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
2195                         }
2196                         ast_set2_flag(peer, autoloopflag, AST_FLAG_IN_AUTOLOOP);  /* set it back the way it was */
2197                 }
2198                 if (!ast_check_hangup(peer) && ast_test_flag64(&opts, OPT_CALLEE_GO_ON) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GO_ON])) {          
2199                         replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GO_ON]);
2200                         ast_parseable_goto(peer, opt_args[OPT_ARG_CALLEE_GO_ON]);
2201                         ast_pbx_start(peer);
2202                 } else {
2203                         if (!ast_check_hangup(chan))
2204                                 chan->hangupcause = peer->hangupcause;
2205                         ast_hangup(peer);
2206                 }
2207         }
2208 out:
2209         if (moh) {
2210                 moh = 0;
2211                 ast_moh_stop(chan);
2212         } else if (sentringing) {
2213                 sentringing = 0;
2214                 ast_indicate(chan, -1);
2215         }
2216         ast_channel_early_bridge(chan, NULL);
2217         hanguptree(outgoing, NULL, 0); /* In this case, there's no answer anywhere */
2218         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
2219         senddialendevent(chan, pa.status);
2220         ast_debug(1, "Exiting with DIALSTATUS=%s.\n", pa.status);
2221         
2222         if ((ast_test_flag64(peerflags, OPT_GO_ON)) && !ast_check_hangup(chan) && (res != AST_PBX_INCOMPLETE)) {
2223                 if (!ast_tvzero(calldurationlimit))
2224                         memset(&chan->whentohangup, 0, sizeof(chan->whentohangup));
2225                 res = 0;
2226         }
2227
2228 done:
2229         if (config.warning_sound) {
2230                 ast_free((char *)config.warning_sound);
2231         }
2232         if (config.end_sound) {
2233                 ast_free((char *)config.end_sound);
2234         }
2235         if (config.start_sound) {
2236                 ast_free((char *)config.start_sound);
2237         }
2238         return res;
2239 }
2240
2241 static int dial_exec(struct ast_channel *chan, void *data)
2242 {
2243         struct ast_flags64 peerflags;
2244
2245         memset(&peerflags, 0, sizeof(peerflags));
2246
2247         return dial_exec_full(chan, data, &peerflags, NULL);
2248 }
2249
2250 static int retrydial_exec(struct ast_channel *chan, void *data)
2251 {
2252         char *parse;
2253         const char *context = NULL;
2254         int sleepms = 0, loops = 0, res = -1;
2255         struct ast_flags64 peerflags = { 0, };
2256         AST_DECLARE_APP_ARGS(args,
2257                 AST_APP_ARG(announce);
2258                 AST_APP_ARG(sleep);
2259                 AST_APP_ARG(retries);
2260                 AST_APP_ARG(dialdata);
2261         );
2262
2263         if (ast_strlen_zero(data)) {
2264                 ast_log(LOG_WARNING, "RetryDial requires an argument!\n");
2265                 return -1;
2266         }
2267
2268         parse = ast_strdupa(data);
2269         AST_STANDARD_APP_ARGS(args, parse);
2270
2271         if (!ast_strlen_zero(args.sleep) && (sleepms = atoi(args.sleep)))
2272                 sleepms *= 1000;
2273
2274         if (!ast_strlen_zero(args.retries)) {
2275                 loops = atoi(args.retries);
2276         }
2277
2278         if (!args.dialdata) {
2279                 ast_log(LOG_ERROR, "%s requires a 4th argument (dialdata)\n", rapp);
2280                 goto done;
2281         }
2282
2283         if (sleepms < 1000)
2284                 sleepms = 10000;
2285
2286         if (!loops)
2287                 loops = -1; /* run forever */
2288
2289         ast_channel_lock(chan);
2290         context = pbx_builtin_getvar_helper(chan, "EXITCONTEXT");
2291         context = !ast_strlen_zero(context) ? ast_strdupa(context) : NULL;
2292         ast_channel_unlock(chan);
2293
2294         res = 0;
2295         while (loops) {
2296                 int continue_exec;
2297
2298                 chan->data = "Retrying";
2299                 if (ast_test_flag(chan, AST_FLAG_MOH))
2300                         ast_moh_stop(chan);
2301
2302                 res = dial_exec_full(chan, args.dialdata, &peerflags, &continue_exec);
2303                 if (continue_exec)
2304                         break;
2305
2306                 if (res == 0) {
2307                         if (ast_test_flag64(&peerflags, OPT_DTMF_EXIT)) {
2308                                 if (!ast_strlen_zero(args.announce)) {
2309                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2310                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2311                                                         ast_waitstream(chan, AST_DIGIT_ANY);
2312                                         } else
2313                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2314                                 }
2315                                 if (!res && sleepms) {
2316                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2317                                                 ast_moh_start(chan, NULL, NULL);
2318                                         res = ast_waitfordigit(chan, sleepms);
2319                                 }
2320                         } else {
2321                                 if (!ast_strlen_zero(args.announce)) {
2322                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
2323                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
2324                                                         res = ast_waitstream(chan, "");
2325                                         } else
2326                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
2327                                 }
2328                                 if (sleepms) {
2329                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
2330                                                 ast_moh_start(chan, NULL, NULL);
2331                                         if (!res)
2332                                                 res = ast_waitfordigit(chan, sleepms);
2333                                 }
2334                         }
2335                 }
2336
2337                 if (res < 0 || res == AST_PBX_INCOMPLETE) {
2338                         break;
2339                 } else if (res > 0) { /* Trying to send the call elsewhere (1 digit ext) */
2340                         if (onedigit_goto(chan, context, (char) res, 1)) {
2341                                 res = 0;
2342                                 break;
2343                         }
2344                 }
2345                 loops--;
2346         }
2347         if (loops == 0)
2348                 res = 0;
2349         else if (res == 1)
2350                 res = 0;
2351
2352         if (ast_test_flag(chan, AST_FLAG_MOH))
2353                 ast_moh_stop(chan);
2354  done:
2355         return res;
2356 }
2357
2358 static int unload_module(void)
2359 {
2360         int res;
2361         struct ast_context *con;
2362
2363         res = ast_unregister_application(app);
2364         res |= ast_unregister_application(rapp);
2365
2366         if ((con = ast_context_find("app_dial_gosub_virtual_context"))) {
2367                 ast_context_remove_extension2(con, "s", 1, NULL, 0);
2368                 ast_context_destroy(con, "app_dial"); /* leave nothing behind */
2369         }
2370
2371         return res;
2372 }
2373
2374 static int load_module(void)
2375 {
2376         int res;
2377         struct ast_context *con;
2378
2379         con = ast_context_find_or_create(NULL, NULL, "app_dial_gosub_virtual_context", "app_dial");
2380         if (!con)
2381                 ast_log(LOG_ERROR, "Dial virtual context 'app_dial_gosub_virtual_context' does not exist and unable to create\n");
2382         else
2383                 ast_add_extension2(con, 1, "s", 1, NULL, NULL, "NoOp", ast_strdup(""), ast_free_ptr, "app_dial");
2384
2385         res = ast_register_application_xml(app, dial_exec);
2386         res |= ast_register_application_xml(rapp, retrydial_exec);
2387
2388         return res;
2389 }
2390
2391 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Dialing Application");