Make sure we propogate ANI2 to the outbound channel
[asterisk/asterisk.git] / apps / app_dial.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 1999 - 2006, 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 #include "asterisk.h"
29
30 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
31
32 #include <stdlib.h>
33 #include <errno.h>
34 #include <unistd.h>
35 #include <string.h>
36 #include <stdio.h>
37 #include <sys/time.h>
38 #include <sys/signal.h>
39 #include <sys/stat.h>
40 #include <netinet/in.h>
41
42 #include "asterisk/lock.h"
43 #include "asterisk/file.h"
44 #include "asterisk/logger.h"
45 #include "asterisk/channel.h"
46 #include "asterisk/pbx.h"
47 #include "asterisk/options.h"
48 #include "asterisk/module.h"
49 #include "asterisk/translate.h"
50 #include "asterisk/say.h"
51 #include "asterisk/config.h"
52 #include "asterisk/features.h"
53 #include "asterisk/musiconhold.h"
54 #include "asterisk/callerid.h"
55 #include "asterisk/utils.h"
56 #include "asterisk/app.h"
57 #include "asterisk/causes.h"
58 #include "asterisk/rtp.h"
59 #include "asterisk/manager.h"
60 #include "asterisk/privacy.h"
61 #include "asterisk/stringfields.h"
62
63 static char *app = "Dial";
64
65 static char *synopsis = "Place a call and connect to the current channel";
66
67 static char *descrip =
68 "  Dial(Technology/resource[&Tech2/resource2...][,timeout][,options][,URL]):\n"
69 "This application will place calls to one or more specified channels. As soon\n"
70 "as one of the requested channels answers, the originating channel will be\n"
71 "answered, if it has not already been answered. These two channels will then\n"
72 "be active in a bridged call. All other channels that were requested will then\n"
73 "be hung up.\n"
74 "  Unless there is a timeout specified, the Dial application will wait\n"
75 "indefinitely until one of the called channels answers, the user hangs up, or\n"
76 "if all of the called channels are busy or unavailable. Dialplan executing will\n"
77 "continue if no requested channels can be called, or if the timeout expires.\n\n"
78 "  This application sets the following channel variables upon completion:\n"
79 "    DIALEDTIME   - This is the time from dialing a channel until when it\n"
80 "                   is disconnected.\n" 
81 "    ANSWEREDTIME - This is the amount of time for actual call.\n"
82 "    DIALSTATUS   - This is the status of the call:\n"
83 "                   CHANUNAVAIL | CONGESTION | NOANSWER | BUSY | ANSWER | CANCEL\n" 
84 "                   DONTCALL | TORTURE | INVALIDARGS\n"
85 "  For the Privacy and Screening Modes, the DIALSTATUS variable will be set to\n"
86 "DONTCALL if the called party chooses to send the calling party to the 'Go Away'\n"
87 "script. The DIALSTATUS variable will be set to TORTURE if the called party\n"
88 "wants to send the caller to the 'torture' script.\n"
89 "  This application will report normal termination if the originating channel\n"
90 "hangs up, or if the call is bridged and either of the parties in the bridge\n"
91 "ends the call.\n"
92 "  The optional URL will be sent to the called party if the channel supports it.\n"
93 "  If the OUTBOUND_GROUP variable is set, all peer channels created by this\n"
94 "application will be put into that group (as in Set(GROUP()=...).\n"
95 "  If the OUTBOUND_GROUP_ONCE variable is set, all peer channels created by this\n"
96 "application will be put into that group (as in Set(GROUP()=...). Unlike OUTBOUND_GROUP,\n"
97 "however, the variable will be unset after use.\n\n"
98 "  Options:\n"
99 "    A(x) - Play an announcement to the called party, using 'x' as the file.\n"
100 "    C    - Reset the CDR for this call.\n"
101 "    c    - If DIAL cancels this call, always set the flag to tell the channel\n"
102 "           driver that the call is answered elsewhere.\n"
103 "    d    - Allow the calling user to dial a 1 digit extension while waiting for\n"
104 "           a call to be answered. Exit to that extension if it exists in the\n"
105 "           current context, or the context defined in the EXITCONTEXT variable,\n"
106 "           if it exists.\n"
107 "    D([called][:calling]) - Send the specified DTMF strings *after* the called\n"
108 "           party has answered, but before the call gets bridged. The 'called'\n"
109 "           DTMF string is sent to the called party, and the 'calling' DTMF\n"
110 "           string is sent to the calling party. Both parameters can be used\n"
111 "           alone.\n"
112 "    e    - execute the 'h' extension for peer after the call ends\n"
113 "    f    - Force the callerid of the *calling* channel to be set as the\n"
114 "           extension associated with the channel using a dialplan 'hint'.\n"
115 "           For example, some PSTNs do not allow CallerID to be set to anything\n"
116 "           other than the number assigned to the caller.\n"
117 "    g    - Proceed with dialplan execution at the current extension if the\n"
118 "           destination channel hangs up.\n"
119 "    G(context^exten^pri) - If the call is answered, transfer the calling party to\n"
120 "           the specified priority and the called party to the specified priority+1.\n"
121 "           Optionally, an extension, or extension and context may be specified. \n"
122 "           Otherwise, the current extension is used. You cannot use any additional\n"
123 "           action post answer options in conjunction with this option.\n" 
124 "    h    - Allow the called party to hang up by sending the '*' DTMF digit.\n"
125 "    H    - Allow the calling party to hang up by hitting the '*' DTMF digit.\n"
126 "    i    - Asterisk will ignore any forwarding requests it may receive on this\n"
127 "           dial attempt.\n"
128 "    k    - Allow the called party to enable parking of the call by sending\n"
129 "           the DTMF sequence defined for call parking in features.conf.\n"
130 "    K    - Allow the calling party to enable parking of the call by sending\n"
131 "           the DTMF sequence defined for call parking in features.conf.\n"
132 "    L(x[:y][:z]) - Limit the call to 'x' ms. Play a warning when 'y' ms are\n"
133 "           left. Repeat the warning every 'z' ms. The following special\n"
134 "           variables can be used with this option:\n"
135 "           * LIMIT_PLAYAUDIO_CALLER   yes|no (default yes)\n"
136 "                                      Play sounds to the caller.\n"
137 "           * LIMIT_PLAYAUDIO_CALLEE   yes|no\n"
138 "                                      Play sounds to the callee.\n"
139 "           * LIMIT_TIMEOUT_FILE       File to play when time is up.\n"
140 "           * LIMIT_CONNECT_FILE       File to play when call begins.\n"
141 "           * LIMIT_WARNING_FILE       File to play as warning if 'y' is defined.\n"
142 "                                      The default is to say the time remaining.\n"
143 "    m([class]) - Provide hold music to the calling party until a requested\n"
144 "           channel answers. A specific MusicOnHold class can be\n"
145 "           specified.\n"
146 "    M(x[^arg]) - Execute the Macro for the *called* channel before connecting\n"
147 "           to the calling channel. Arguments can be specified to the Macro\n"
148 "           using '^' as a delimeter. The Macro can set the variable\n"
149 "           MACRO_RESULT to specify the following actions after the Macro is\n" 
150 "           finished executing.\n"
151 "           * ABORT        Hangup both legs of the call.\n"
152 "           * CONGESTION   Behave as if line congestion was encountered.\n"
153 "           * BUSY         Behave as if a busy signal was encountered.\n"
154 "           * CONTINUE     Hangup the called party and allow the calling party\n"
155 "                          to continue dialplan execution at the next priority.\n"
156 "           * GOTO:<context>^<exten>^<priority> - Transfer the call to the\n"
157 "                          specified priority. Optionally, an extension, or\n"
158 "                          extension and priority can be specified.\n"
159 "           You cannot use any additional action post answer options in conjunction\n"
160 "           with this option. Also, pbx services are not run on the peer (called) channel,\n"
161 "           so you will not be able to set timeouts via the TIMEOUT() function in this macro.\n"
162 "    n    - This option is a modifier for the screen/privacy mode. It specifies\n"
163 "           that no introductions are to be saved in the priv-callerintros\n"
164 "           directory.\n"
165 "    N    - This option is a modifier for the screen/privacy mode. It specifies\n"
166 "           that if callerID is present, do not screen the call.\n"
167 "    o    - Specify that the CallerID that was present on the *calling* channel\n"
168 "           be set as the CallerID on the *called* channel. This was the\n"
169 "           behavior of Asterisk 1.0 and earlier.\n"
170 "    O([x]) - \"Operator Services\" mode (Zaptel channel to Zaptel channel\n"
171 "             only, if specified on non-Zaptel interface, it will be ignored).\n"
172 "             When the destination answers (presumably an operator services\n"
173 "             station), the originator no longer has control of their line.\n"
174 "             They may hang up, but the switch will not release their line\n"
175 "             until the destination party hangs up (the operator). Specified\n"
176 "             without an arg, or with 1 as an arg, the originator hanging up\n"
177 "             will cause the phone to ring back immediately. With a 2 specified,\n"
178 "             when the \"operator\" flashes the trunk, it will ring their phone\n"
179 "             back.\n"
180 "    p    - This option enables screening mode. This is basically Privacy mode\n"
181 "           without memory.\n"
182 "    P([x]) - Enable privacy mode. Use 'x' as the family/key in the database if\n"
183 "           it is provided. The current extension is used if a database\n"
184 "           family/key is not specified.\n"
185 "    r    - Indicate ringing to the calling party. Pass no audio to the calling\n"
186 "           party until the called channel has answered.\n"
187 "    S(x) - Hang up the call after 'x' seconds *after* the called party has\n"
188 "           answered the call.\n"       
189 "    t    - Allow the called party to transfer the calling party by sending the\n"
190 "           DTMF sequence defined in features.conf.\n"
191 "    T    - Allow the calling party to transfer the called party by sending the\n"
192 "           DTMF sequence defined in features.conf.\n"
193 "    U(x[^arg]) - Execute via Gosub the routine 'x' for the *called* channel before connecting\n"
194 "           to the calling channel. Arguments can be specified to the Gosub\n"
195 "           using '^' as a delimeter. The Gosub routine can set the variable\n"
196 "           GOSUB_RESULT to specify the following actions after the Gosub returns.\n" 
197 "           * ABORT        Hangup both legs of the call.\n"
198 "           * CONGESTION   Behave as if line congestion was encountered.\n"
199 "           * BUSY         Behave as if a busy signal was encountered.\n"
200 "           * CONTINUE     Hangup the called party and allow the calling party\n"
201 "                          to continue dialplan execution at the next priority.\n"
202 "           * GOTO:<context>^<exten>^<priority> - Transfer the call to the\n"
203 "                          specified priority. Optionally, an extension, or\n"
204 "                          extension and priority can be specified.\n"
205 "           You cannot use any additional action post answer options in conjunction\n"
206 "           with this option. Also, pbx services are not run on the peer (called) channel,\n"
207 "           so you will not be able to set timeouts via the TIMEOUT() function in this routine.\n"
208 "    w    - Allow the called party to enable recording of the call by sending\n"
209 "           the DTMF sequence defined for one-touch recording in features.conf.\n"
210 "    W    - Allow the calling party to enable recording of the call by sending\n"
211 "           the DTMF sequence defined for one-touch recording in features.conf.\n";
212
213 /* RetryDial App by Anthony Minessale II <anthmct@yahoo.com> Jan/2005 */
214 static char *rapp = "RetryDial";
215 static char *rsynopsis = "Place a call, retrying on failure allowing optional exit extension.";
216 static char *rdescrip =
217 "  RetryDial(announce,sleep,retries,dialargs): This application will attempt to\n"
218 "place a call using the normal Dial application. If no channel can be reached,\n"
219 "the 'announce' file will be played. Then, it will wait 'sleep' number of\n"
220 "seconds before retying the call. After 'retires' number of attempts, the\n"
221 "calling channel will continue at the next priority in the dialplan. If the\n"
222 "'retries' setting is set to 0, this application will retry endlessly.\n"
223 "  While waiting to retry a call, a 1 digit extension may be dialed. If that\n"
224 "extension exists in either the context defined in ${EXITCONTEXT} or the current\n"
225 "one, The call will jump to that extension immediately.\n"
226 "  The 'dialargs' are specified in the same format that arguments are provided\n"
227 "to the Dial application.\n";
228
229 enum {
230         OPT_ANNOUNCE =          (1 << 0),
231         OPT_RESETCDR =          (1 << 1),
232         OPT_DTMF_EXIT =         (1 << 2),
233         OPT_SENDDTMF =          (1 << 3),
234         OPT_FORCECLID =         (1 << 4),
235         OPT_GO_ON =             (1 << 5),
236         OPT_CALLEE_HANGUP =     (1 << 6),
237         OPT_CALLER_HANGUP =     (1 << 7),
238         OPT_DURATION_LIMIT =    (1 << 9),
239         OPT_MUSICBACK =         (1 << 10),
240         OPT_CALLEE_MACRO =      (1 << 11),
241         OPT_SCREEN_NOINTRO =    (1 << 12),
242         OPT_SCREEN_NOCLID =     (1 << 13),
243         OPT_ORIGINAL_CLID =     (1 << 14),
244         OPT_SCREENING =         (1 << 15),
245         OPT_PRIVACY =           (1 << 16),
246         OPT_RINGBACK =          (1 << 17),
247         OPT_DURATION_STOP =     (1 << 18),
248         OPT_CALLEE_TRANSFER =   (1 << 19),
249         OPT_CALLER_TRANSFER =   (1 << 20),
250         OPT_CALLEE_MONITOR =    (1 << 21),
251         OPT_CALLER_MONITOR =    (1 << 22),
252         OPT_GOTO =              (1 << 23),
253         OPT_OPERMODE =          (1 << 24),
254         OPT_CALLEE_PARK =       (1 << 25),
255         OPT_CALLER_PARK =       (1 << 26),
256         OPT_IGNORE_FORWARDING = (1 << 27),
257         OPT_CALLEE_GOSUB =      (1 << 28),
258         OPT_CANCEL_ELSEWHERE =  (1 << 29),
259         OPT_PEER_H =            (1 << 30),
260 };
261
262 #define DIAL_STILLGOING                 (1 << 31)
263 #define DIAL_NOFORWARDHTML              ((uint64_t)1 << 32) /* flags are now 64 bits, so keep it up! */
264
265 enum {
266         OPT_ARG_ANNOUNCE = 0,
267         OPT_ARG_SENDDTMF,
268         OPT_ARG_GOTO,
269         OPT_ARG_DURATION_LIMIT,
270         OPT_ARG_MUSICBACK,
271         OPT_ARG_CALLEE_MACRO,
272         OPT_ARG_CALLEE_GOSUB,
273         OPT_ARG_PRIVACY,
274         OPT_ARG_DURATION_STOP,
275         OPT_ARG_OPERMODE,
276         /* note: this entry _MUST_ be the last one in the enum */
277         OPT_ARG_ARRAY_SIZE,
278 };
279
280 AST_APP_OPTIONS(dial_exec_options, {
281         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
282         AST_APP_OPTION('C', OPT_RESETCDR),
283         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
284         AST_APP_OPTION('d', OPT_DTMF_EXIT),
285         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
286         AST_APP_OPTION('e', OPT_PEER_H),
287         AST_APP_OPTION('f', OPT_FORCECLID),
288         AST_APP_OPTION('g', OPT_GO_ON),
289         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
290         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
291         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
292         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
293         AST_APP_OPTION('k', OPT_CALLEE_PARK),
294         AST_APP_OPTION('K', OPT_CALLER_PARK),
295         AST_APP_OPTION('k', OPT_CALLEE_PARK),
296         AST_APP_OPTION('K', OPT_CALLER_PARK),
297         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
298         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
299         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
300         AST_APP_OPTION('n', OPT_SCREEN_NOINTRO),
301         AST_APP_OPTION('N', OPT_SCREEN_NOCLID),
302         AST_APP_OPTION('o', OPT_ORIGINAL_CLID),
303         AST_APP_OPTION_ARG('O', OPT_OPERMODE,OPT_ARG_OPERMODE),
304         AST_APP_OPTION('p', OPT_SCREENING),
305         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
306         AST_APP_OPTION('r', OPT_RINGBACK),
307         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
308         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
309         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
310         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
311         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
312         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
313 });
314
315 #define CAN_EARLY_BRIDGE(flags) (!ast_test_flag64(flags, OPT_CALLEE_HANGUP | \
316         OPT_CALLER_HANGUP | OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER | \
317         OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR | OPT_CALLEE_PARK | OPT_CALLER_PARK))
318
319 /*
320  * The list of active channels
321  */
322 struct chanlist {
323         struct chanlist *next;
324         struct ast_channel *chan;
325         uint64_t flags;
326         int forwards;
327 };
328
329
330 static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception, int answered_elsewhere)
331 {
332         /* Hang up a tree of stuff */
333         struct chanlist *oo;
334         while (outgoing) {
335                 /* Hangup any existing lines we have open */
336                 if (outgoing->chan && (outgoing->chan != exception)) {
337                         if (answered_elsewhere)
338                                 ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
339                         ast_hangup(outgoing->chan);
340                 }
341                 oo = outgoing;
342                 outgoing=outgoing->next;
343                 ast_free(oo);
344         }
345 }
346
347 #define AST_MAX_FORWARDS   8
348
349 #define AST_MAX_WATCHERS 256
350
351 /*
352  * argument to handle_cause() and other functions.
353  */
354 struct cause_args {
355         struct ast_channel *chan;
356         int busy;
357         int congestion;
358         int nochan;
359 };
360
361 static void handle_cause(int cause, struct cause_args *num)
362 {
363         struct ast_cdr *cdr = num->chan->cdr;
364
365         switch(cause) {
366         case AST_CAUSE_BUSY:
367                 if (cdr)
368                         ast_cdr_busy(cdr);
369                 num->busy++;
370                 break;
371
372         case AST_CAUSE_CONGESTION:
373                 if (cdr)
374                         ast_cdr_failed(cdr);
375                 num->congestion++;
376                 break;
377
378         case AST_CAUSE_UNREGISTERED:
379                 if (cdr)
380                         ast_cdr_failed(cdr);
381                 num->nochan++;
382                 break;
383
384         case AST_CAUSE_NORMAL_CLEARING:
385                 break;
386
387         default:
388                 num->nochan++;
389                 break;
390         }
391 }
392
393 /* free the buffer if allocated, and set the pointer to the second arg */
394 #define S_REPLACE(s, new_val)           \
395         do {                            \
396                 if (s)                  \
397                         free(s);        \
398                 s = (new_val);          \
399         } while (0)
400
401 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri) 
402 {
403         char rexten[2] = { exten, '\0' };
404
405         if (context) {
406                 if (!ast_goto_if_exists(chan, context, rexten, pri))
407                         return 1;
408         } else {
409                 if (!ast_goto_if_exists(chan, chan->context, rexten, pri))
410                         return 1;
411                 else if (!ast_strlen_zero(chan->macrocontext)) {
412                         if (!ast_goto_if_exists(chan, chan->macrocontext, rexten, pri))
413                                 return 1;
414                 }
415         }
416         return 0;
417 }
418
419
420 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
421 {
422         const char *context = S_OR(chan->macrocontext, chan->context);
423         const char *exten = S_OR(chan->macroexten, chan->exten);
424
425         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
426 }
427
428 static void senddialevent(struct ast_channel *src, struct ast_channel *dst)
429 {
430         manager_event(EVENT_FLAG_CALL, "Dial", 
431                            "SubEvent: Begin\r\n"
432                            "Source: %s\r\n"
433                            "Destination: %s\r\n"
434                            "CallerIDNum: %s\r\n"
435                            "CallerIDName: %s\r\n"
436                            "SrcUniqueID: %s\r\n"
437                            "DestUniqueID: %s\r\n",
438                            src->name, dst->name, S_OR(src->cid.cid_num, "<unknown>"),
439                            S_OR(src->cid.cid_name, "<unknown>"), src->uniqueid,
440                            dst->uniqueid);
441 }
442
443 static void senddialendevent(const struct ast_channel *src, const char *dialstatus)
444 {
445         manager_event(EVENT_FLAG_CALL, "Dial",
446                                         "SubEvent: End\r\n"
447                                         "Channel: %s\r\n"
448                                         "DialStatus: %s\r\n",
449                                         src->name, dialstatus);
450 }       
451
452 /*!
453  * helper function for wait_for_answer()
454  *
455  * XXX this code is highly suspicious, as it essentially overwrites
456  * the outgoing channel without properly deleting it.
457  */
458 static void do_forward(struct chanlist *o,
459         struct cause_args *num, struct ast_flags64 *peerflags, int single)
460 {
461         char tmpchan[256];
462         struct ast_channel *original = o->chan;
463         struct ast_channel *c = o->chan; /* the winner */
464         struct ast_channel *in = num->chan; /* the input channel */
465         char *stuff;
466         char *tech;
467         int cause;
468
469         ast_copy_string(tmpchan, c->call_forward, sizeof(tmpchan));
470         if ((stuff = strchr(tmpchan, '/'))) {
471                 *stuff++ = '\0';
472                 tech = tmpchan;
473         } else {
474                 const char *forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
475                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", c->call_forward, forward_context ? forward_context : c->context);
476                 stuff = tmpchan;
477                 tech = "Local";
478         }
479         /* Before processing channel, go ahead and check for forwarding */
480         o->forwards++;
481         if (o->forwards < AST_MAX_FORWARDS) {
482                 ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n", in->name, tech, stuff, c->name);
483                 /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
484                 if (ast_test_flag64(peerflags, OPT_IGNORE_FORWARDING)) {
485                         ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n", in->name, tech, stuff);
486                         c = o->chan = NULL;
487                         cause = AST_CAUSE_BUSY;
488                 } else {
489                         /* Setup parameters */
490                         c = o->chan = ast_request(tech, in->nativeformats, stuff, &cause);
491                         if (c) {
492                                 if (single)
493                                         ast_channel_make_compatible(o->chan, in);
494                                 ast_channel_inherit_variables(in, o->chan);
495                         } else
496                                 ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
497                 }
498         } else {
499                 ast_verb(3, "Too many forwards from %s\n", c->name);
500                 cause = AST_CAUSE_CONGESTION;
501                 c = o->chan = NULL;
502         }
503         if (!c) {
504                 ast_clear_flag64(o, DIAL_STILLGOING);   
505                 handle_cause(cause, num);
506         } else {
507                 char *new_cid_num, *new_cid_name;
508                 struct ast_channel *src;
509
510                 ast_rtp_make_compatible(c, in, single);
511                 if (ast_test_flag64(o, OPT_FORCECLID)) {
512                         new_cid_num = ast_strdup(S_OR(in->macroexten, in->exten));
513                         new_cid_name = NULL; /* XXX no name ? */
514                         src = c;        /* XXX possible bug in previous code, which used 'winner' ? it may have changed */
515                 } else {
516                         new_cid_num = ast_strdup(in->cid.cid_num);
517                         new_cid_name = ast_strdup(in->cid.cid_name);
518                         src = in;
519                 }
520                 ast_string_field_set(c, accountcode, src->accountcode);
521                 c->cdrflags = src->cdrflags;
522                 S_REPLACE(c->cid.cid_num, new_cid_num);
523                 S_REPLACE(c->cid.cid_name, new_cid_name);
524
525                 if (in->cid.cid_ani) { /* XXX or maybe unconditional ? */
526                         S_REPLACE(c->cid.cid_ani, ast_strdup(in->cid.cid_ani));
527                 }
528                 S_REPLACE(c->cid.cid_rdnis, ast_strdup(S_OR(in->macroexten, in->exten)));
529                 if (ast_call(c, tmpchan, 0)) {
530                         ast_log(LOG_NOTICE, "Failed to dial on local channel for call forward to '%s'\n", tmpchan);
531                         ast_clear_flag64(o, DIAL_STILLGOING);   
532                         ast_hangup(original);
533                         c = o->chan = NULL;
534                         num->nochan++;
535                 } else {
536                         senddialevent(in, c);
537                         /* After calling, set callerid to extension */
538                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID)) {
539                                 char cidname[AST_MAX_EXTENSION] = "";
540                                 ast_set_callerid(c, S_OR(in->macroexten, in->exten), get_cid_name(cidname, sizeof(cidname), in), NULL);
541                         }
542                         /* Hangup the original channel now, in case we needed it */
543                         ast_hangup(original);
544                 }
545         }
546 }
547
548 /* argument used for some functions. */
549 struct privacy_args {
550         int sentringing;
551         int privdb_val;
552         char privcid[256];
553         char privintro[1024];
554         char status[256];
555 };
556
557 static struct ast_channel *wait_for_answer(struct ast_channel *in,
558         struct chanlist *outgoing, int *to, struct ast_flags64 *peerflags,
559         struct privacy_args *pa,
560         const struct cause_args *num_in, int *result)
561 {
562         struct cause_args num = *num_in;
563         int prestart = num.busy + num.congestion + num.nochan;
564         int orig = *to;
565         struct ast_channel *peer = NULL;
566         /* single is set if only one destination is enabled */
567         int single = outgoing && !outgoing->next && !ast_test_flag64(outgoing, OPT_MUSICBACK | OPT_RINGBACK);
568 #ifdef HAVE_EPOLL
569         struct chanlist *epollo;
570 #endif
571         
572         if (single) {
573                 /* Turn off hold music, etc */
574                 ast_deactivate_generator(in);
575                 /* If we are calling a single channel, make them compatible for in-band tone purpose */
576                 ast_channel_make_compatible(outgoing->chan, in);
577         }
578
579 #ifdef HAVE_EPOLL
580         for (epollo = outgoing; epollo; epollo = epollo->next)
581                 ast_poll_channel_add(in, epollo->chan);
582 #endif  
583         
584         while (*to && !peer) {
585                 struct chanlist *o;
586                 int pos = 0;    /* how many channels do we handle */
587                 int numlines = prestart;
588                 struct ast_channel *winner;
589                 struct ast_channel *watchers[AST_MAX_WATCHERS];
590
591                 watchers[pos++] = in;
592                 for (o = outgoing; o; o = o->next) {
593                         /* Keep track of important channels */
594                         if (ast_test_flag64(o, DIAL_STILLGOING) && o->chan)
595                                 watchers[pos++] = o->chan;
596                         numlines++;
597                 }
598                 if (pos == 1) { /* only the input channel is available */
599                         if (numlines == (num.busy + num.congestion + num.nochan)) {
600                                 ast_verb(2, "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
601                                 if (num.busy)
602                                         strcpy(pa->status, "BUSY");     
603                                 else if (num.congestion)
604                                         strcpy(pa->status, "CONGESTION");
605                                 else if (num.nochan)
606                                         strcpy(pa->status, "CHANUNAVAIL");
607                         } else {
608                                 ast_verb(3, "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
609                         }
610                         *to = 0;
611                         return NULL;
612                 }
613                 winner = ast_waitfor_n(watchers, pos, to);
614                 for (o = outgoing; o; o = o->next) {
615                         struct ast_frame *f;
616                         struct ast_channel *c = o->chan;
617
618                         if (c == NULL)
619                                 continue;
620                         if (ast_test_flag64(o, DIAL_STILLGOING) && c->_state == AST_STATE_UP) {
621                                 if (!peer) {
622                                         ast_verb(3, "%s answered %s\n", c->name, in->name);
623                                         peer = c;
624                                         ast_copy_flags64(peerflags, o,
625                                                        OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
626                                                        OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
627                                                        OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
628                                                        OPT_CALLEE_PARK | OPT_CALLER_PARK |
629                                                        DIAL_NOFORWARDHTML);
630                                         ast_copy_string(c->dialcontext, "", sizeof(c->dialcontext));
631                                         ast_copy_string(c->exten, "", sizeof(c->exten));
632                                 }
633                                 continue;
634                         }
635                         if (c != winner)
636                                 continue;
637                         /* here, o->chan == c == winner */
638                         if (!ast_strlen_zero(c->call_forward)) {
639                                 do_forward(o, &num, peerflags, single);
640                                 continue;
641                         }
642                         f = ast_read(winner);
643                         if (!f) {
644                                 in->hangupcause = c->hangupcause;
645                                 ast_hangup(c);
646                                 c = o->chan = NULL;
647                                 ast_clear_flag64(o, DIAL_STILLGOING);
648                                 handle_cause(in->hangupcause, &num);
649                                 continue;
650                         }
651                         if (f->frametype == AST_FRAME_CONTROL) {
652                                 switch(f->subclass) {
653                                 case AST_CONTROL_ANSWER:
654                                         /* This is our guy if someone answered. */
655                                         if (!peer) {
656                                                 ast_verb(3, "%s answered %s\n", c->name, in->name);
657                                                 peer = c;
658                                                 ast_copy_flags64(peerflags, o,
659                                                                OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
660                                                                OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
661                                                                OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
662                                                                OPT_CALLEE_PARK | OPT_CALLER_PARK |
663                                                                DIAL_NOFORWARDHTML);
664                                                 ast_copy_string(c->dialcontext, "", sizeof(c->dialcontext));
665                                                 ast_copy_string(c->exten, "", sizeof(c->exten));
666                                                 if (CAN_EARLY_BRIDGE(peerflags))
667                                                         /* Setup early bridge if appropriate */
668                                                         ast_channel_early_bridge(in, peer);
669                                         }
670                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
671                                         in->hangupcause = AST_CAUSE_NORMAL_CLEARING;
672                                         c->hangupcause = AST_CAUSE_NORMAL_CLEARING;
673                                         break;
674                                 case AST_CONTROL_BUSY:
675                                         ast_verb(3, "%s is busy\n", c->name);
676                                         in->hangupcause = c->hangupcause;
677                                         ast_hangup(c);
678                                         c = o->chan = NULL;
679                                         ast_clear_flag64(o, DIAL_STILLGOING);   
680                                         handle_cause(AST_CAUSE_BUSY, &num);
681                                         break;
682                                 case AST_CONTROL_CONGESTION:
683                                         ast_verb(3, "%s is circuit-busy\n", c->name);
684                                         in->hangupcause = c->hangupcause;
685                                         ast_hangup(c);
686                                         c = o->chan = NULL;
687                                         ast_clear_flag64(o, DIAL_STILLGOING);
688                                         handle_cause(AST_CAUSE_CONGESTION, &num);
689                                         break;
690                                 case AST_CONTROL_RINGING:
691                                         ast_verb(3, "%s is ringing\n", c->name);
692                                         /* Setup early media if appropriate */
693                                         if (single && CAN_EARLY_BRIDGE(peerflags))
694                                                 ast_channel_early_bridge(in, c);
695                                         if (!(pa->sentringing) && !ast_test_flag64(outgoing, OPT_MUSICBACK)) {
696                                                 ast_indicate(in, AST_CONTROL_RINGING);
697                                                 pa->sentringing++;
698                                         }
699                                         break;
700                                 case AST_CONTROL_PROGRESS:
701                                         ast_verb(3, "%s is making progress passing it to %s\n", c->name, in->name);
702                                         /* Setup early media if appropriate */
703                                         if (single && CAN_EARLY_BRIDGE(peerflags))
704                                                 ast_channel_early_bridge(in, c);
705                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
706                                                 ast_indicate(in, AST_CONTROL_PROGRESS);
707                                         break;
708                                 case AST_CONTROL_VIDUPDATE:
709                                         ast_verb(3, "%s requested a video update, passing it to %s\n", c->name, in->name);
710                                         ast_indicate(in, AST_CONTROL_VIDUPDATE);
711                                         break;
712                                 case AST_CONTROL_PROCEEDING:
713                                         ast_verb(3, "%s is proceeding passing it to %s\n", c->name, in->name);
714                                         if (single && CAN_EARLY_BRIDGE(peerflags))
715                                                 ast_channel_early_bridge(in, c);
716                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK))
717                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
718                                         break;
719                                 case AST_CONTROL_HOLD:
720                                         ast_verb(3, "Call on %s placed on hold\n", c->name);
721                                         ast_indicate(in, AST_CONTROL_HOLD);
722                                         break;
723                                 case AST_CONTROL_UNHOLD:
724                                         ast_verb(3, "Call on %s left from hold\n", c->name);
725                                         ast_indicate(in, AST_CONTROL_UNHOLD);
726                                         break;
727                                 case AST_CONTROL_OFFHOOK:
728                                 case AST_CONTROL_FLASH:
729                                         /* Ignore going off hook and flash */
730                                         break;
731                                 case -1:
732                                         if (!ast_test_flag64(outgoing, OPT_RINGBACK | OPT_MUSICBACK)) {
733                                                 ast_verb(3, "%s stopped sounds\n", c->name);
734                                                 ast_indicate(in, -1);
735                                                 pa->sentringing = 0;
736                                         }
737                                         break;
738                                 default:
739                                         ast_debug(1, "Dunno what to do with control type %d\n", f->subclass);
740                                 }
741                         } else if (single) {
742                                 /* XXX are we sure the logic is correct ? or we should just switch on f->frametype ? */
743                                 if (f->frametype == AST_FRAME_VOICE && !ast_test_flag64(outgoing, OPT_RINGBACK|OPT_MUSICBACK)) {
744                                         if (ast_write(in, f)) 
745                                                 ast_log(LOG_WARNING, "Unable to forward voice frame\n");
746                                 } else if (f->frametype == AST_FRAME_IMAGE && !ast_test_flag64(outgoing, OPT_RINGBACK|OPT_MUSICBACK)) {
747                                         if (ast_write(in, f))
748                                                 ast_log(LOG_WARNING, "Unable to forward image\n");
749                                 } else if (f->frametype == AST_FRAME_TEXT && !ast_test_flag64(outgoing, OPT_RINGBACK|OPT_MUSICBACK)) {
750                                         if (ast_write(in, f))
751                                                 ast_log(LOG_WARNING, "Unable to send text\n");
752                                 } else if (f->frametype == AST_FRAME_HTML && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML)) {
753                                         if (ast_channel_sendhtml(in, f->subclass, f->data, f->datalen) == -1)
754                                                 ast_log(LOG_WARNING, "Unable to send URL\n");
755                                 }
756                         }
757                         ast_frfree(f);
758                 } /* end for */
759                 if (winner == in) {
760                         struct ast_frame *f = ast_read(in);
761 #if 0
762                         if (f && (f->frametype != AST_FRAME_VOICE))
763                                 printf("Frame type: %d, %d\n", f->frametype, f->subclass);
764                         else if (!f || (f->frametype != AST_FRAME_VOICE))
765                                 printf("Hangup received on %s\n", in->name);
766 #endif
767                         if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP))) {
768                                 /* Got hung up */
769                                 *to = -1;
770                                 strcpy(pa->status, "CANCEL");
771                                 ast_cdr_noanswer(in->cdr);
772                                 if (f)
773                                         ast_frfree(f);
774                                 return NULL;
775                         }
776
777                         /* now f is guaranteed non-NULL */
778                         if (f->frametype == AST_FRAME_DTMF) {
779                                 if (ast_test_flag64(peerflags, OPT_DTMF_EXIT)) {
780                                         const char *context = pbx_builtin_getvar_helper(in, "EXITCONTEXT");
781                                         if (onedigit_goto(in, context, (char) f->subclass, 1)) {
782                                                 ast_verb(3, "User hit %c to disconnect call.\n", f->subclass);
783                                                 *to=0;
784                                                 ast_cdr_noanswer(in->cdr);
785                                                 *result = f->subclass;
786                                                 strcpy(pa->status, "CANCEL");
787                                                 ast_frfree(f);
788                                                 return NULL;
789                                         }
790                                 }
791
792                                 if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP) && 
793                                                   (f->subclass == '*')) { /* hmm it it not guaranteed to be '*' anymore. */
794                                         ast_verb(3, "User hit %c to disconnect call.\n", f->subclass);
795                                         *to=0;
796                                         strcpy(pa->status, "CANCEL");
797                                         ast_cdr_noanswer(in->cdr);
798                                         ast_frfree(f);
799                                         return NULL;
800                                 }
801                         }
802
803                         /* Forward HTML stuff */
804                         if (single && (f->frametype == AST_FRAME_HTML) && !ast_test_flag64(outgoing, DIAL_NOFORWARDHTML)) 
805                                 if(ast_channel_sendhtml(outgoing->chan, f->subclass, f->data, f->datalen) == -1)
806                                         ast_log(LOG_WARNING, "Unable to send URL\n");
807                         
808
809                         if (single && ((f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_DTMF_BEGIN) || (f->frametype == AST_FRAME_DTMF_END)))  {
810                                 if (ast_write(outgoing->chan, f))
811                                         ast_log(LOG_WARNING, "Unable to forward voice or dtmf\n");
812                         }
813                         if (single && (f->frametype == AST_FRAME_CONTROL) && 
814                                 ((f->subclass == AST_CONTROL_HOLD) || 
815                                  (f->subclass == AST_CONTROL_UNHOLD) || 
816                                  (f->subclass == AST_CONTROL_VIDUPDATE))) {
817                                 ast_verb(3, "%s requested special control %d, passing it to %s\n", in->name, f->subclass, outgoing->chan->name);
818                                 ast_indicate_data(outgoing->chan, f->subclass, f->data, f->datalen);
819                         }
820                         ast_frfree(f);
821                 }
822                 if (!*to)
823                         ast_verb(3, "Nobody picked up in %d ms\n", orig);
824                 if (!*to || ast_check_hangup(in)) {
825                         ast_cdr_noanswer(in->cdr);
826                 }
827                 
828         }
829
830 #ifdef HAVE_EPOLL
831         for (epollo = outgoing; epollo; epollo = epollo->next)
832                 ast_poll_channel_del(in, epollo->chan);
833 #endif
834
835         return peer;
836 }
837
838 static void replace_macro_delimiter(char *s)
839 {
840         for (; *s; s++)
841                 if (*s == '^')
842                         *s = ',';
843 }
844
845
846 /* returns true if there is a valid privacy reply */
847 static int valid_priv_reply(struct ast_flags64 *opts, int res)
848 {
849         if (res < '1')
850                 return 0;
851         if (ast_test_flag64(opts, OPT_PRIVACY) && res <= '5')
852                 return 1;
853         if (ast_test_flag64(opts, OPT_SCREENING) && res <= '4')
854                 return 1;
855         return 0;
856 }
857
858 static int do_timelimit(struct ast_channel *chan, struct ast_bridge_config *config,
859         char *parse, unsigned int *calldurationlimit)
860 {
861         char *stringp = ast_strdupa(parse);
862         char *limit_str, *warning_str, *warnfreq_str;
863         const char *var;
864         int play_to_caller=0,play_to_callee=0;
865         int delta;
866
867         limit_str = strsep(&stringp, ":");
868         warning_str = strsep(&stringp, ":");
869         warnfreq_str = strsep(&stringp, ":");
870
871         config->timelimit = atol(limit_str);
872         if (warning_str)
873                 config->play_warning = atol(warning_str);
874         if (warnfreq_str)
875                 config->warning_freq = atol(warnfreq_str);
876
877         if (!config->timelimit) {
878                 ast_log(LOG_WARNING, "Dial does not accept L(%s), hanging up.\n", limit_str);
879                 config->timelimit = config->play_warning = config->warning_freq = 0;
880                 config->warning_sound = NULL;
881                 return -1;      /* error */
882         } else if ( (delta = config->play_warning - config->timelimit) > 0) {
883                 int w = config->warning_freq;
884
885                 /* If the first warning is requested _after_ the entire call would end,
886                    and no warning frequency is requested, then turn off the warning. If
887                    a warning frequency is requested, reduce the 'first warning' time by
888                    that frequency until it falls within the call's total time limit.
889                    Graphically:
890                                   timelim->|    delta        |<-playwarning
891                         0__________________|_________________|
892                                          | w  |    |    |    |
893
894                    so the number of intervals to cut is 1+(delta-1)/w
895                 */
896
897                 if (w == 0) {
898                         config->play_warning = 0;
899                 } else {
900                         config->play_warning -= w * ( 1 + (delta-1)/w );
901                         if (config->play_warning < 1)
902                                 config->play_warning = config->warning_freq = 0;
903                 }
904         }
905
906         var = pbx_builtin_getvar_helper(chan,"LIMIT_PLAYAUDIO_CALLER");
907         play_to_caller = var ? ast_true(var) : 1;
908         
909         var = pbx_builtin_getvar_helper(chan,"LIMIT_PLAYAUDIO_CALLEE");
910         play_to_callee = var ? ast_true(var) : 0;
911         
912         if (!play_to_caller && !play_to_callee)
913                 play_to_caller = 1;
914         
915         var = pbx_builtin_getvar_helper(chan,"LIMIT_WARNING_FILE");
916         config->warning_sound = S_OR(var, "timeleft");
917
918         /* The code looking at config wants a NULL, not just "", to decide
919          * that the message should not be played, so we replace "" with NULL.
920          * Note, pbx_builtin_getvar_helper _can_ return NULL if the variable is
921          * not found.
922          */
923         var = pbx_builtin_getvar_helper(chan,"LIMIT_TIMEOUT_FILE");
924         config->end_sound = S_OR(var, NULL);
925         var = pbx_builtin_getvar_helper(chan,"LIMIT_CONNECT_FILE");
926         config->start_sound = S_OR(var, NULL);
927
928         /* undo effect of S(x) in case they are both used */
929         *calldurationlimit = 0;
930         /* more efficient to do it like S(x) does since no advanced opts */
931         if (!config->play_warning && !config->start_sound && !config->end_sound && config->timelimit) {
932                 *calldurationlimit = config->timelimit / 1000;
933                 ast_verb(3, "Setting call duration limit to %d seconds.\n",
934                                 *calldurationlimit);
935                 config->timelimit = play_to_caller = play_to_callee =
936                 config->play_warning = config->warning_freq = 0;
937         } else {
938                 ast_verb(3, "Limit Data for this call:\n");
939                 ast_verb(4, "timelimit      = %ld\n", config->timelimit);
940                 ast_verb(4, "play_warning   = %ld\n", config->play_warning);
941                 ast_verb(4, "play_to_caller = %s\n", play_to_caller ? "yes" : "no");
942                 ast_verb(4, "play_to_callee = %s\n", play_to_callee ? "yes" : "no");
943                 ast_verb(4, "warning_freq   = %ld\n", config->warning_freq);
944                 ast_verb(4, "start_sound    = %s\n", S_OR(config->start_sound, ""));
945                 ast_verb(4, "warning_sound  = %s\n", config->warning_sound);
946                 ast_verb(4, "end_sound      = %s\n", S_OR(config->end_sound, ""));
947         }
948         if (play_to_caller)
949                 ast_set_flag(&(config->features_caller), AST_FEATURE_PLAY_WARNING);
950         if (play_to_callee)
951                 ast_set_flag(&(config->features_callee), AST_FEATURE_PLAY_WARNING);
952         return 0;
953 }
954
955 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
956     struct ast_flags64 *opts, char **opt_args, struct privacy_args *pa)
957 {
958
959         int res2;
960         int loopcount = 0;
961
962         /* Get the user's intro, store it in priv-callerintros/$CID, 
963            unless it is already there-- this should be done before the 
964            call is actually dialed  */
965
966         /* all ring indications and moh for the caller has been halted as soon as the 
967            target extension was picked up. We are going to have to kill some
968            time and make the caller believe the peer hasn't picked up yet */
969
970         if (ast_test_flag64(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
971                 char *original_moh = ast_strdupa(chan->musicclass);
972                 ast_indicate(chan, -1);
973                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
974                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
975                 ast_string_field_set(chan, musicclass, original_moh);
976         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
977                 ast_indicate(chan, AST_CONTROL_RINGING);
978                 pa->sentringing++;
979         }
980
981         /* Start autoservice on the other chan ?? */
982         res2 = ast_autoservice_start(chan);
983         /* Now Stream the File */
984         for (loopcount = 0; loopcount < 3; loopcount++) {
985                 if (res2 && loopcount == 0)     /* error in ast_autoservice_start() */
986                         break;
987                 if (!res2)      /* on timeout, play the message again */
988                         res2 = ast_play_and_wait(peer,"priv-callpending");
989                 if (!valid_priv_reply(opts, res2))
990                         res2 = 0;
991                 /* priv-callpending script: 
992                    "I have a caller waiting, who introduces themselves as:"
993                 */
994                 if (!res2)
995                         res2 = ast_play_and_wait(peer, pa->privintro);
996                 if (!valid_priv_reply(opts, res2))
997                         res2 = 0;
998                 /* now get input from the called party, as to their choice */
999                 if( !res2 ) {
1000                         /* XXX can we have both, or they are mutually exclusive ? */
1001                         if( ast_test_flag64(opts, OPT_PRIVACY) )
1002                                 res2 = ast_play_and_wait(peer,"priv-callee-options");
1003                         if( ast_test_flag64(opts, OPT_SCREENING) )
1004                                 res2 = ast_play_and_wait(peer,"screen-callee-options");
1005                 }
1006                 /*! \page DialPrivacy Dial Privacy scripts
1007                 \par priv-callee-options script:
1008                         "Dial 1 if you wish this caller to reach you directly in the future,
1009                                 and immediately connect to their incoming call
1010                          Dial 2 if you wish to send this caller to voicemail now and 
1011                                 forevermore.
1012                          Dial 3 to send this caller to the torture menus, now and forevermore.
1013                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1014                          Dial 5 to allow this caller to come straight thru to you in the future,
1015                                 but right now, just this once, send them to voicemail."
1016                 \par screen-callee-options script:
1017                         "Dial 1 if you wish to immediately connect to the incoming call
1018                          Dial 2 if you wish to send this caller to voicemail.
1019                          Dial 3 to send this caller to the torture menus.
1020                          Dial 4 to send this caller to a simple "go away" menu.
1021                 */
1022                 if (valid_priv_reply(opts, res2))
1023                         break;
1024                 /* invalid option */
1025                 res2 = ast_play_and_wait(peer, "vm-sorry");
1026         }
1027
1028         if (ast_test_flag64(opts, OPT_MUSICBACK)) {
1029                 ast_moh_stop(chan);
1030         } else if (ast_test_flag64(opts, OPT_RINGBACK)) {
1031                 ast_indicate(chan, -1);
1032                 pa->sentringing=0;
1033         }
1034         ast_autoservice_stop(chan);
1035         if(ast_test_flag64(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1036                 /* map keypresses to various things, the index is res2 - '1' */
1037                 static const char *_val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1038                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1039                 int i = res2 - '1';
1040                 ast_verb(3, "--Set privacy database entry %s/%s to %s\n",
1041                                              opt_args[OPT_ARG_PRIVACY], pa->privcid, _val[i]);
1042                 ast_privacy_set(opt_args[OPT_ARG_PRIVACY], pa->privcid, _flag[i]);
1043         }
1044         switch (res2) {
1045         case '1':
1046                 break;
1047         case '2':
1048                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1049                 break;
1050         case '3':
1051                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1052                 break;
1053         case '4':
1054                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1055                 break;
1056         case '5':
1057                 /* XXX should we set status to DENY ? */
1058                 if( ast_test_flag64(opts, OPT_PRIVACY) )
1059                         break;
1060                 /* if not privacy, then 5 is the same as "default" case */
1061         default:        /* bad input or -1 if failure to start autoservice */
1062                 /* well, if the user messes up, ... he had his chance... What Is The Best Thing To Do?  */
1063                 /* well, there seems basically two choices. Just patch the caller thru immediately,
1064                           or,... put 'em thru to voicemail. */
1065                 /* since the callee may have hung up, let's do the voicemail thing, no database decision */
1066                 ast_log(LOG_NOTICE, "privacy: no valid response from the callee. Sending the caller to voicemail, the callee isn't responding\n");
1067                 /* XXX should we set status to DENY ? */
1068                 /* XXX what about the privacy flags ? */
1069                 break;
1070         }
1071
1072         if (res2 == '1') {      /* the only case where we actually connect */
1073                 /* if the intro is NOCALLERID, then there's no reason to leave it on disk, it'll 
1074                    just clog things up, and it's not useful information, not being tied to a CID */
1075                 if( strncmp(pa->privcid,"NOCALLERID",10) == 0 || ast_test_flag64(opts, OPT_SCREEN_NOINTRO) ) {
1076                         ast_filedelete(pa->privintro, NULL);
1077                         if( ast_fileexists(pa->privintro, NULL, NULL ) > 0 )
1078                                 ast_log(LOG_NOTICE, "privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1079                         else
1080                                 ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1081                 }
1082                 return 0;       /* the good exit path */
1083         } else {
1084                 ast_hangup(peer); /* hang up on the callee -- he didn't want to talk anyway! */
1085                 return -1;
1086         }
1087 }
1088
1089 /*! \brief returns 1 if successful, 0 or <0 if the caller should 'goto out' */
1090 static int setup_privacy_args(struct privacy_args *pa,
1091         struct ast_flags64 *opts, char *opt_args[], struct ast_channel *chan)
1092 {
1093         char callerid[60];
1094         int res;
1095         char *l;
1096
1097         if (!ast_strlen_zero(chan->cid.cid_num)) {
1098                 l = ast_strdupa(chan->cid.cid_num);
1099                 ast_shrink_phone_number(l);
1100                 if (ast_test_flag64(opts, OPT_PRIVACY) ) {
1101                         ast_verb(3, "Privacy DB is '%s', clid is '%s'\n",
1102                                              opt_args[OPT_ARG_PRIVACY], l);
1103                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1104                 } else {
1105                         ast_verb(3,  "Privacy Screening, clid is '%s'\n", l);
1106                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1107                 }
1108         } else {
1109                 char *tnam, *tn2;
1110
1111                 tnam = ast_strdupa(chan->name);
1112                 /* clean the channel name so slashes don't try to end up in disk file name */
1113                 for (tn2 = tnam; *tn2; tn2++) {
1114                         if (*tn2=='/')  /* any other chars to be afraid of? */
1115                                 *tn2 = '=';
1116                 }
1117                 ast_verb(3, "Privacy-- callerid is empty\n");
1118
1119                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", chan->exten, tnam);
1120                 l = callerid;
1121                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1122         }
1123         
1124         ast_copy_string(pa->privcid,l,sizeof(pa->privcid));
1125
1126         if( strncmp(pa->privcid,"NOCALLERID",10) != 0 && ast_test_flag64(opts, OPT_SCREEN_NOCLID) ) { /* if callerid is set, and ast_test_flag64(&opts, OPT_SCREEN_NOCLID) is set also */  
1127                 if (option_verbose > 2)
1128                         ast_verbose( VERBOSE_PREFIX_3  "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1129                 pa->privdb_val = AST_PRIVACY_ALLOW;
1130         } else if (ast_test_flag64(opts, OPT_SCREEN_NOCLID) && strncmp(pa->privcid,"NOCALLERID",10) == 0 ) {
1131                 if (option_verbose > 2)
1132                         ast_verbose( VERBOSE_PREFIX_3  "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1133         }
1134         
1135         if (pa->privdb_val == AST_PRIVACY_DENY ) {
1136                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1137                 if (option_verbose > 2)
1138                         ast_verbose( VERBOSE_PREFIX_3  "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1139                 return 0;
1140         } else if (pa->privdb_val == AST_PRIVACY_KILL ) {
1141                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1142                 return 0; /* Is this right? */
1143         } else if (pa->privdb_val == AST_PRIVACY_TORTURE ) {
1144                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1145                 return 0; /* is this right??? */
1146         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN ) {
1147                 /* Get the user's intro, store it in priv-callerintros/$CID, 
1148                    unless it is already there-- this should be done before the 
1149                    call is actually dialed  */
1150
1151                 /* make sure the priv-callerintros dir actually exists */
1152                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1153                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1154                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1155                         return -1;
1156                 }
1157
1158                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1159                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1160                         /* the DELUX version of this code would allow this caller the
1161                            option to hear and retape their previously recorded intro.
1162                         */
1163                 } else {
1164                         int duration; /* for feedback from play_and_wait */
1165                         /* the file doesn't exist yet. Let the caller submit his
1166                            vocal intro for posterity */
1167                         /* priv-recordintro script:
1168
1169                            "At the tone, please say your name:"
1170
1171                         */
1172                         ast_answer(chan);
1173                         res = ast_play_and_record(chan, "priv-recordintro", pa->privintro, 4, "gsm", &duration, 128, 2000, 0);  /* NOTE: I've reduced the total time to 4 sec */
1174                                                                         /* don't think we'll need a lock removed, we took care of
1175                                                                            conflicts by naming the pa.privintro file */
1176                         if (res == -1) {
1177                                 /* Delete the file regardless since they hung up during recording */
1178                                 ast_filedelete(pa->privintro, NULL);
1179                                 if (ast_fileexists(pa->privintro,NULL,NULL ) > 0 )
1180                                         ast_log(LOG_NOTICE,"privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1181                                 else
1182                                         ast_verb(3, "Successfully deleted %s intro file\n", pa->privintro);
1183                                 return -1;
1184                         }
1185                         if (!ast_streamfile(chan, "vm-dialout", chan->language) )
1186                                 ast_waitstream(chan, "");
1187                 }
1188         }
1189         return 1;       /* success */
1190 }
1191
1192 static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags64 *peerflags, int *continue_exec)
1193 {
1194         int res = -1;   /* default: error */
1195         char *rest, *cur;       /* scan the list of destinations */
1196         struct chanlist *outgoing = NULL;       /* list of destinations */
1197         struct ast_channel *peer;
1198         int to; /* timeout */
1199         struct cause_args num = { chan, 0, 0, 0 };
1200         int cause;
1201         char numsubst[256];
1202         char cidname[AST_MAX_EXTENSION] = "";
1203
1204         struct ast_bridge_config config;
1205         unsigned int calldurationlimit = 0;
1206         char *dtmfcalled = NULL, *dtmfcalling = NULL;
1207         struct privacy_args pa = {
1208                 .sentringing = 0,
1209                 .privdb_val = 0,
1210                 .status = "INVALIDARGS",
1211         };
1212         int sentringing = 0, moh = 0;
1213         const char *outbound_group = NULL;
1214         int result = 0;
1215         time_t start_time;
1216         char *parse;
1217         int opermode = 0;
1218         AST_DECLARE_APP_ARGS(args,
1219                              AST_APP_ARG(peers);
1220                              AST_APP_ARG(timeout);
1221                              AST_APP_ARG(options);
1222                              AST_APP_ARG(url);
1223         );
1224         struct ast_flags64 opts = { 0, };
1225         char *opt_args[OPT_ARG_ARRAY_SIZE];
1226
1227         if (ast_strlen_zero(data)) {
1228                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1229                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1230                 return -1;
1231         }
1232
1233         parse = ast_strdupa(data);
1234         
1235         AST_STANDARD_APP_ARGS(args, parse);
1236
1237         memset(&config,0,sizeof(struct ast_bridge_config));
1238
1239         if (!ast_strlen_zero(args.options) &&
1240                         ast_app_parse_options64(dial_exec_options, &opts, opt_args, args.options)) {
1241                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1242                 goto done;
1243         }
1244
1245         if (ast_strlen_zero(args.peers)) {
1246                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1247                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1248                 goto done;
1249         }
1250
1251         if (ast_test_flag64(&opts, OPT_OPERMODE)) {
1252                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
1253                 ast_verb(3, "Setting operator services mode to %d.\n", opermode);
1254         }
1255         
1256         if (ast_test_flag64(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
1257                 calldurationlimit = atoi(opt_args[OPT_ARG_DURATION_STOP]);
1258                 if (!calldurationlimit) {
1259                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
1260                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1261                         goto done;
1262                 }
1263                 ast_verb(3, "Setting call duration limit to %d seconds.\n", calldurationlimit);
1264         }
1265
1266         if (ast_test_flag64(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
1267                 dtmfcalling = opt_args[OPT_ARG_SENDDTMF];
1268                 dtmfcalled = strsep(&dtmfcalling, ":");
1269         }
1270
1271         if (ast_test_flag64(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
1272                 if (do_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
1273                         goto done;
1274         }
1275
1276         if (ast_test_flag64(&opts, OPT_RESETCDR) && chan->cdr)
1277                 ast_cdr_reset(chan->cdr, NULL);
1278         if (ast_test_flag64(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
1279                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(chan->exten);
1280
1281         if (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) {
1282                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
1283                 if (res <= 0)
1284                         goto out;
1285                 res = -1;       /* reset default */
1286         }
1287
1288         if (continue_exec)
1289                 *continue_exec = 0;
1290         
1291         /* If a channel group has been specified, get it for use when we create peer channels */
1292         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
1293                 outbound_group = ast_strdupa(outbound_group);
1294                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
1295         } else {
1296                 outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP");
1297         }
1298             
1299         ast_copy_flags64(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING);
1300         /* loop through the list of dial destinations */
1301         rest = args.peers;
1302         while ((cur = strsep(&rest, "&")) ) {
1303                 struct chanlist *tmp;
1304                 struct ast_channel *tc; /* channel for this destination */
1305                 /* Get a technology/[device:]number pair */
1306                 char *number = cur;
1307                 char *tech = strsep(&number, "/");
1308                 if (!number) {
1309                         ast_log(LOG_WARNING, "Dial argument takes format (technology/[device:]number1)\n");
1310                         goto out;
1311                 }
1312                 if (!(tmp = ast_calloc(1, sizeof(*tmp))))
1313                         goto out;
1314                 if (opts.flags) {
1315                         ast_copy_flags64(tmp, &opts,
1316                                        OPT_CANCEL_ELSEWHERE |
1317                                        OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1318                                        OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1319                                        OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1320                                        OPT_CALLEE_PARK | OPT_CALLER_PARK |
1321                                        OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID);
1322                         ast_set2_flag64(tmp, args.url, DIAL_NOFORWARDHTML);     
1323                 }
1324                 ast_copy_string(numsubst, number, sizeof(numsubst));
1325                 /* Request the peer */
1326                 tc = ast_request(tech, chan->nativeformats, numsubst, &cause);
1327                 if (!tc) {
1328                         /* If we can't, just go on to the next call */
1329                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
1330                                     tech, cause, ast_cause2str(cause));
1331                         handle_cause(cause, &num);
1332                         if (!rest)      /* we are on the last destination */
1333                                 chan->hangupcause = cause;
1334                         ast_free(tmp);
1335                         continue;
1336                 }
1337                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", numsubst);
1338                 if (!ast_strlen_zero(tc->call_forward)) {
1339                         char tmpchan[256];
1340                         char *stuff;
1341                         char *tech;
1342                         ast_copy_string(tmpchan, tc->call_forward, sizeof(tmpchan));
1343                         if ((stuff = strchr(tmpchan, '/'))) {
1344                                 *stuff++ = '\0';
1345                                 tech = tmpchan;
1346                         } else {
1347                                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", tc->call_forward, tc->context);
1348                                 stuff = tmpchan;
1349                                 tech = "Local";
1350                         }
1351                         tmp->forwards++;
1352                         if (tmp->forwards < AST_MAX_FORWARDS) {
1353                                 ast_verb(3, "Now forwarding %s to '%s/%s' (thanks to %s)\n",
1354                                         chan->name, tech, stuff, tc->name);
1355                                 ast_hangup(tc);
1356                                 /* If we have been told to ignore forwards, just set this channel to null
1357                                  * and continue processing extensions normally */
1358                                 if (ast_test_flag64(&opts, OPT_IGNORE_FORWARDING)) {
1359                                         tc = NULL;
1360                                         cause = AST_CAUSE_BUSY;
1361                                         ast_verb(3, "Forwarding %s to '%s/%s' prevented.\n",
1362                                                         chan->name, tech, stuff);
1363                                 } else {
1364                                         tc = ast_request(tech, chan->nativeformats, stuff, &cause);
1365                                 }
1366                                 if (!tc)
1367                                         ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
1368                                 else
1369                                         ast_channel_inherit_variables(chan, tc);
1370                         } else {
1371                                 ast_verb(3, "Too many forwards from %s\n", tc->name);
1372                                 ast_hangup(tc);
1373                                 tc = NULL;
1374                                 cause = AST_CAUSE_CONGESTION;
1375                         }
1376                         if (!tc) {
1377                                 handle_cause(cause, &num);
1378                                 ast_free(tmp);
1379                                 continue;
1380                         }
1381                 }
1382
1383                 /* Setup outgoing SDP to match incoming one */
1384                 ast_rtp_make_compatible(tc, chan, !outgoing && !rest);
1385                 
1386                 /* Inherit specially named variables from parent channel */
1387                 ast_channel_inherit_variables(chan, tc);
1388
1389                 tc->appl = "AppDial";
1390                 tc->data = "(Outgoing Line)";
1391                 tc->whentohangup = 0;
1392
1393                 S_REPLACE(tc->cid.cid_num, ast_strdup(chan->cid.cid_num));
1394                 S_REPLACE(tc->cid.cid_name, ast_strdup(chan->cid.cid_name));
1395                 S_REPLACE(tc->cid.cid_ani, ast_strdup(chan->cid.cid_ani));
1396                 S_REPLACE(tc->cid.cid_rdnis, ast_strdup(chan->cid.cid_rdnis));
1397                 
1398                 /* Copy language from incoming to outgoing */
1399                 ast_string_field_set(tc, language, chan->language);
1400                 ast_string_field_set(tc, accountcode, chan->accountcode);
1401                 tc->cdrflags = chan->cdrflags;
1402                 if (ast_strlen_zero(tc->musicclass))
1403                         ast_string_field_set(tc, musicclass, chan->musicclass);
1404                 /* Pass callingpres, type of number, tns, ADSI CPE, transfer capability */
1405                 tc->cid.cid_pres = chan->cid.cid_pres;
1406                 tc->cid.cid_ton = chan->cid.cid_ton;
1407                 tc->cid.cid_tns = chan->cid.cid_tns;
1408                 tc->cid.cid_ani2 = chan->cid.cid_ani2;
1409                 tc->adsicpe = chan->adsicpe;
1410                 tc->transfercapability = chan->transfercapability;
1411
1412                 /* If we have an outbound group, set this peer channel to it */
1413                 if (outbound_group)
1414                         ast_app_group_set_channel(tc, outbound_group);
1415
1416                 /* Inherit context and extension */
1417                 if (!ast_strlen_zero(chan->macrocontext))
1418                         ast_copy_string(tc->dialcontext, chan->macrocontext, sizeof(tc->dialcontext));
1419                 else
1420                         ast_copy_string(tc->dialcontext, chan->context, sizeof(tc->dialcontext));
1421                 if (!ast_strlen_zero(chan->macroexten))
1422                         ast_copy_string(tc->exten, chan->macroexten, sizeof(tc->exten));
1423                 else
1424                         ast_copy_string(tc->exten, chan->exten, sizeof(tc->exten));
1425
1426                 res = ast_call(tc, numsubst, 0);        /* Place the call, but don't wait on the answer */
1427
1428                 /* Save the info in cdr's that we called them */
1429                 if (chan->cdr)
1430                         ast_cdr_setdestchan(chan->cdr, tc->name);
1431
1432                 /* check the results of ast_call */
1433                 if (res) {
1434                         /* Again, keep going even if there's an error */
1435                         ast_debug(1, "ast call on peer returned %d\n", res);
1436                         ast_verb(3, "Couldn't call %s\n", numsubst);
1437                         ast_hangup(tc);
1438                         tc = NULL;
1439                         ast_free(tmp);
1440                         continue;
1441                 } else {
1442                         senddialevent(chan, tc);
1443                         ast_verb(3, "Called %s\n", numsubst);
1444                         if (!ast_test_flag64(peerflags, OPT_ORIGINAL_CLID))
1445                                 ast_set_callerid(tc, S_OR(chan->macroexten, chan->exten), get_cid_name(cidname, sizeof(cidname), chan), NULL);
1446                 }
1447                 /* Put them in the list of outgoing thingies...  We're ready now. 
1448                    XXX If we're forcibly removed, these outgoing calls won't get
1449                    hung up XXX */
1450                 ast_set_flag64(tmp, DIAL_STILLGOING);   
1451                 tmp->chan = tc;
1452                 tmp->next = outgoing;
1453                 outgoing = tmp;
1454                 /* If this line is up, don't try anybody else */
1455                 if (outgoing->chan->_state == AST_STATE_UP)
1456                         break;
1457         }
1458         
1459         if (ast_strlen_zero(args.timeout)) {
1460                 to = -1;
1461         } else {
1462                 to = atoi(args.timeout);
1463                 if (to > 0)
1464                         to *= 1000;
1465                 else
1466                         ast_log(LOG_WARNING, "Invalid timeout specified: '%s'\n", args.timeout);
1467         }
1468
1469         if (!outgoing) {
1470                 strcpy(pa.status, "CHANUNAVAIL");
1471         } else {
1472                 /* Our status will at least be NOANSWER */
1473                 strcpy(pa.status, "NOANSWER");
1474                 if (ast_test_flag64(outgoing, OPT_MUSICBACK)) {
1475                         moh = 1;
1476                         if (!ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1477                                 char *original_moh = ast_strdupa(chan->musicclass);
1478                                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1479                                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1480                                 ast_string_field_set(chan, musicclass, original_moh);
1481                         } else {
1482                                 ast_moh_start(chan, NULL, NULL);
1483                         }
1484                         ast_indicate(chan, AST_CONTROL_PROGRESS);
1485                 } else if (ast_test_flag64(outgoing, OPT_RINGBACK)) {
1486                         ast_indicate(chan, AST_CONTROL_RINGING);
1487                         sentringing++;
1488                 }
1489         }
1490
1491         time(&start_time);
1492         peer = wait_for_answer(chan, outgoing, &to, peerflags, &pa, &num, &result);
1493         
1494         if (!peer) {
1495                 if (result) {
1496                         res = result;
1497                 } else if (to) { /* Musta gotten hung up */
1498                         res = -1;
1499                 } else { /* Nobody answered, next please? */
1500                         res = 0;
1501                 }
1502                 /* almost done, although the 'else' block is 400 lines */
1503         } else {
1504                 const char *number;
1505                 time_t end_time, answer_time = time(NULL);
1506                 char toast[80]; /* buffer to set variables */
1507
1508                 strcpy(pa.status, "ANSWER");
1509                 /* Ah ha!  Someone answered within the desired timeframe.  Of course after this
1510                    we will always return with -1 so that it is hung up properly after the 
1511                    conversation.  */
1512                 hanguptree(outgoing, peer, 1);
1513                 outgoing = NULL;
1514                 /* If appropriate, log that we have a destination channel */
1515                 if (chan->cdr)
1516                         ast_cdr_setdestchan(chan->cdr, peer->name);
1517                 if (peer->name)
1518                         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", peer->name);
1519
1520                 number = pbx_builtin_getvar_helper(peer, "DIALEDPEERNUMBER");
1521                 if (!number)
1522                         number = numsubst;
1523                 pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", number);
1524                 if (!ast_strlen_zero(args.url) && ast_channel_supports_html(peer) ) {
1525                         ast_debug(1, "app_dial: sendurl=%s.\n", args.url);
1526                         ast_channel_sendurl( peer, args.url );
1527                 }
1528                 if ( (ast_test_flag64(&opts, OPT_PRIVACY) || ast_test_flag64(&opts, OPT_SCREENING)) && pa.privdb_val == AST_PRIVACY_UNKNOWN) {
1529                         if (do_privacy(chan, peer, &opts, opt_args, &pa)) {
1530                                 res = 0;
1531                                 goto out;
1532                         }
1533                 }
1534                 if (!ast_test_flag64(&opts, OPT_ANNOUNCE) || ast_strlen_zero(opt_args[OPT_ARG_ANNOUNCE])) {
1535                         res = 0;
1536                 } else {
1537                         int digit = 0;
1538                         /* Start autoservice on the other chan */
1539                         res = ast_autoservice_start(chan);
1540                         /* Now Stream the File */
1541                         if (!res)
1542                                 res = ast_streamfile(peer, opt_args[OPT_ARG_ANNOUNCE], peer->language);
1543                         if (!res) {
1544                                 digit = ast_waitstream(peer, AST_DIGIT_ANY); 
1545                         }
1546                         /* Ok, done. stop autoservice */
1547                         res = ast_autoservice_stop(chan);
1548                         if (digit > 0 && !res)
1549                                 res = ast_senddigit(chan, digit, 0); 
1550                         else
1551                                 res = digit;
1552
1553                 }
1554
1555                 if (chan && peer && ast_test_flag64(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
1556                         replace_macro_delimiter(opt_args[OPT_ARG_GOTO]);
1557                         ast_parseable_goto(chan, opt_args[OPT_ARG_GOTO]);
1558                         ast_parseable_goto(peer, opt_args[OPT_ARG_GOTO]);
1559                         peer->priority++;
1560                         ast_pbx_start(peer);
1561                         hanguptree(outgoing, NULL, ast_test_flag64(&opts, OPT_CANCEL_ELSEWHERE) ? 1 : 0);
1562                         if (continue_exec)
1563                                 *continue_exec = 1;
1564                         res = 0;
1565                         goto done;
1566                 }
1567
1568                 if (ast_test_flag64(&opts, OPT_CALLEE_MACRO) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_MACRO])) {
1569                         struct ast_app *theapp;
1570                         const char *macro_result;
1571
1572                         res = ast_autoservice_start(chan);
1573                         if (res) {
1574                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
1575                                 res = -1;
1576                         }
1577
1578                         theapp = pbx_findapp("Macro");
1579
1580                         if (theapp && !res) {   /* XXX why check res here ? */
1581                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_MACRO]);
1582                                 res = pbx_exec(peer, theapp, opt_args[OPT_ARG_CALLEE_MACRO]);
1583                                 ast_debug(1, "Macro exited with status %d\n", res);
1584                                 res = 0;
1585                         } else {
1586                                 ast_log(LOG_ERROR, "Could not find application Macro\n");
1587                                 res = -1;
1588                         }
1589
1590                         if (ast_autoservice_stop(chan) < 0) {
1591                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
1592                                 res = -1;
1593                         }
1594
1595                         if (!res && (macro_result = pbx_builtin_getvar_helper(peer, "MACRO_RESULT"))) {
1596                                 char *macro_transfer_dest;
1597
1598                                 if (!strcasecmp(macro_result, "BUSY")) {
1599                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
1600                                         ast_set_flag64(peerflags, OPT_GO_ON);
1601                                         res = -1;
1602                                 } else if (!strcasecmp(macro_result, "CONGESTION") || !strcasecmp(macro_result, "CHANUNAVAIL")) {
1603                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
1604                                         ast_set_flag64(peerflags, OPT_GO_ON);   
1605                                         res = -1;
1606                                 } else if (!strcasecmp(macro_result, "CONTINUE")) {
1607                                         /* hangup peer and keep chan alive assuming the macro has changed 
1608                                            the context / exten / priority or perhaps 
1609                                            the next priority in the current exten is desired.
1610                                         */
1611                                         ast_set_flag64(peerflags, OPT_GO_ON);   
1612                                         res = -1;
1613                                 } else if (!strcasecmp(macro_result, "ABORT")) {
1614                                         /* Hangup both ends unless the caller has the g flag */
1615                                         res = -1;
1616                                 } else if (!strncasecmp(macro_result, "GOTO:", 5) && (macro_transfer_dest = ast_strdupa(macro_result + 5))) {
1617                                         res = -1;
1618                                         /* perform a transfer to a new extension */
1619                                         if (strchr(macro_transfer_dest, '^')) { /* context^exten^priority*/
1620                                                 replace_macro_delimiter(macro_transfer_dest);
1621                                                 if (!ast_parseable_goto(chan, macro_transfer_dest))
1622                                                         ast_set_flag64(peerflags, OPT_GO_ON);
1623                                         }
1624                                 }
1625                         }
1626                 }
1627
1628                 if (ast_test_flag64(&opts, OPT_CALLEE_GOSUB) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GOSUB])) {
1629                         struct ast_app *theapp;
1630                         const char *gosub_result;
1631                         char *gosub_args, *gosub_argstart;
1632
1633                         res = ast_autoservice_start(chan);
1634                         if (res) {
1635                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
1636                                 res = -1;
1637                         }
1638
1639                         theapp = pbx_findapp("Gosub");
1640
1641                         if (theapp && !res) {   /* XXX why check res here ? */
1642                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GOSUB]);
1643
1644                                 /* Set where we came from */
1645                                 ast_copy_string(peer->context, "app_dial_gosub_virtual_context", sizeof(peer->context));
1646                                 ast_copy_string(peer->exten, "s", sizeof(peer->exten));
1647                                 peer->priority = 0;
1648
1649                                 gosub_argstart = strchr(opt_args[OPT_ARG_CALLEE_GOSUB], '|');
1650                                 if (gosub_argstart) {
1651                                         *gosub_argstart = 0;
1652                                         asprintf(&gosub_args, "%s|s|1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], gosub_argstart + 1);
1653                                         *gosub_argstart = '|';
1654                                 } else {
1655                                         asprintf(&gosub_args, "%s|s|1", opt_args[OPT_ARG_CALLEE_GOSUB]);
1656                                 }
1657
1658                                 if (gosub_args) {
1659                                         res = pbx_exec(peer, theapp, gosub_args);
1660                                         ast_pbx_run(peer);
1661                                         free(gosub_args);
1662                                         if (option_debug)
1663                                                 ast_log(LOG_DEBUG, "Gosub exited with status %d\n", res);
1664                                 } else
1665                                         ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
1666                                 
1667                                 res = 0;
1668                         } else {
1669                                 ast_log(LOG_ERROR, "Could not find application Gosub\n");
1670                                 res = -1;
1671                         }
1672
1673                         if (ast_autoservice_stop(chan) < 0) {
1674                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
1675                                 res = -1;
1676                         }
1677
1678                         if (!res && (gosub_result = pbx_builtin_getvar_helper(peer, "GOSUB_RESULT"))) {
1679                                 char *gosub_transfer_dest;
1680
1681                                 if (!strcasecmp(gosub_result, "BUSY")) {
1682                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
1683                                         ast_set_flag64(peerflags, OPT_GO_ON);
1684                                         res = -1;
1685                                 } else if (!strcasecmp(gosub_result, "CONGESTION") || !strcasecmp(gosub_result, "CHANUNAVAIL")) {
1686                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
1687                                         ast_set_flag64(peerflags, OPT_GO_ON);   
1688                                         res = -1;
1689                                 } else if (!strcasecmp(gosub_result, "CONTINUE")) {
1690                                         /* hangup peer and keep chan alive assuming the macro has changed 
1691                                            the context / exten / priority or perhaps 
1692                                            the next priority in the current exten is desired.
1693                                         */
1694                                         ast_set_flag64(peerflags, OPT_GO_ON);   
1695                                         res = -1;
1696                                 } else if (!strcasecmp(gosub_result, "ABORT")) {
1697                                         /* Hangup both ends unless the caller has the g flag */
1698                                         res = -1;
1699                                 } else if (!strncasecmp(gosub_result, "GOTO:", 5) && (gosub_transfer_dest = ast_strdupa(gosub_result + 5))) {
1700                                         res = -1;
1701                                         /* perform a transfer to a new extension */
1702                                         if (strchr(gosub_transfer_dest, '^')) { /* context^exten^priority*/
1703                                                 replace_macro_delimiter(gosub_transfer_dest);
1704                                                 if (!ast_parseable_goto(chan, gosub_transfer_dest))
1705                                                         ast_set_flag64(peerflags, OPT_GO_ON);
1706                                         }
1707                                 }
1708                         }
1709                 }
1710
1711                 if (!res) {
1712                         if (calldurationlimit > 0) {
1713                                 peer->whentohangup = time(NULL) + calldurationlimit;
1714                         }
1715                         if (!ast_strlen_zero(dtmfcalled)) { 
1716                                 if (option_verbose > 2)
1717                                         ast_verbose(VERBOSE_PREFIX_3 "Sending DTMF '%s' to the called party.\n", dtmfcalled);
1718                                 res = ast_dtmf_stream(peer,chan,dtmfcalled,250,0);
1719                         }
1720                         if (!ast_strlen_zero(dtmfcalling)) {
1721                                 if (option_verbose > 2)
1722                                         ast_verbose(VERBOSE_PREFIX_3 "Sending DTMF '%s' to the calling party.\n", dtmfcalling);
1723                                 res = ast_dtmf_stream(chan,peer,dtmfcalling,250,0);
1724                         }
1725                 }
1726                 
1727                 if (res) {      /* some error */
1728                         res = -1;
1729                         end_time = time(NULL);
1730                 } else {
1731                         if (ast_test_flag64(peerflags, OPT_CALLEE_TRANSFER))
1732                                 ast_set_flag(&(config.features_callee), AST_FEATURE_REDIRECT);
1733                         if (ast_test_flag64(peerflags, OPT_CALLER_TRANSFER))
1734                                 ast_set_flag(&(config.features_caller), AST_FEATURE_REDIRECT);
1735                         if (ast_test_flag64(peerflags, OPT_CALLEE_HANGUP))
1736                                 ast_set_flag(&(config.features_callee), AST_FEATURE_DISCONNECT);
1737                         if (ast_test_flag64(peerflags, OPT_CALLER_HANGUP))
1738                                 ast_set_flag(&(config.features_caller), AST_FEATURE_DISCONNECT);
1739                         if (ast_test_flag64(peerflags, OPT_CALLEE_MONITOR))
1740                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMON);
1741                         if (ast_test_flag64(peerflags, OPT_CALLER_MONITOR)) 
1742                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMON);
1743                         if (ast_test_flag64(peerflags, OPT_CALLEE_PARK))
1744                                 ast_set_flag(&(config.features_callee), AST_FEATURE_PARKCALL);
1745                         if (ast_test_flag64(peerflags, OPT_CALLER_PARK))
1746                                 ast_set_flag(&(config.features_caller), AST_FEATURE_PARKCALL);
1747
1748                         if (moh) {
1749                                 moh = 0;
1750                                 ast_moh_stop(chan);
1751                         } else if (sentringing) {
1752                                 sentringing = 0;
1753                                 ast_indicate(chan, -1);
1754                         }
1755                         /* Be sure no generators are left on it */
1756                         ast_deactivate_generator(chan);
1757                         /* Make sure channels are compatible */
1758                         res = ast_channel_make_compatible(chan, peer);
1759                         if (res < 0) {
1760                                 ast_log(LOG_WARNING, "Had to drop call because I couldn't make %s compatible with %s\n", chan->name, peer->name);
1761                                 ast_hangup(peer);
1762                                 res = -1;
1763                                 goto done;
1764                         }
1765                         if (opermode && !strncmp(chan->name,"Zap",3) && !strncmp(peer->name,"Zap",3)) {
1766                                 /* XXX what's this special handling for Zap <-> Zap ? */
1767                                 struct oprmode oprmode;
1768
1769                                 oprmode.peer = peer;
1770                                 oprmode.mode = opermode;
1771
1772                                 ast_channel_setoption(chan,
1773                                         AST_OPTION_OPRMODE,&oprmode,sizeof(struct oprmode),0);
1774                         }
1775                         res = ast_bridge_call(chan,peer,&config);
1776                         end_time = time(NULL);
1777                         snprintf(toast, sizeof(toast), "%ld", (long)(end_time - answer_time));
1778                         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", toast);
1779                 }
1780
1781                 snprintf(toast, sizeof(toast), "%ld", (long)(end_time - start_time));
1782                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", toast);
1783                 
1784                 
1785                 if (ast_test_flag64(&opts, OPT_PEER_H)) {
1786                         ast_log(LOG_NOTICE,"PEER context: %s; PEER exten: %s;  PEER priority: %d\n", 
1787                                         peer->context, peer->exten, peer->priority);
1788                 }
1789                 
1790                 strcpy(peer->context, chan->context);
1791
1792                 if (ast_test_flag64(&opts, OPT_PEER_H) && ast_exists_extension(peer, peer->context, "h", 1, peer->cid.cid_num)) {
1793                         int autoloopflag;
1794                         strcpy(peer->exten, "h");
1795                         peer->priority = 1;
1796                         autoloopflag = ast_test_flag(peer, AST_FLAG_IN_AUTOLOOP);       /* save value to restore at the end */
1797                         ast_set_flag(peer, AST_FLAG_IN_AUTOLOOP);
1798                         
1799                         while (ast_exists_extension(peer, peer->context, peer->exten, peer->priority, peer->cid.cid_num)) {
1800                                 if ((res = ast_spawn_extension(peer, peer->context, peer->exten, peer->priority, peer->cid.cid_num))) {
1801                                         /* Something bad happened, or a hangup has been requested. */
1802                                         ast_debug(1, "Spawn extension (%s,%s,%d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
1803                                         ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s'\n", peer->context, peer->exten, peer->priority, peer->name);
1804                                         break;
1805                                 }
1806                                 peer->priority++;
1807                         }
1808                         ast_set2_flag(peer, autoloopflag, AST_FLAG_IN_AUTOLOOP);  /* set it back the way it was */
1809                 }
1810                 if (res != AST_PBX_NO_HANGUP_PEER) {
1811                         if (!ast_check_hangup(chan))
1812                                 chan->hangupcause = peer->hangupcause;
1813                         ast_hangup(peer);
1814                 }
1815         }       
1816 out:
1817         if (moh) {
1818                 moh = 0;
1819                 ast_moh_stop(chan);
1820         } else if (sentringing) {
1821                 sentringing = 0;
1822                 ast_indicate(chan, -1);
1823         }
1824         ast_channel_early_bridge(chan, NULL);
1825         hanguptree(outgoing, NULL, 0);  /* In this case, there's no answer anywhere */
1826         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1827         senddialendevent(chan, pa.status);
1828         ast_debug(1, "Exiting with DIALSTATUS=%s.\n", pa.status);
1829         
1830         if ((ast_test_flag64(peerflags, OPT_GO_ON)) && !ast_check_hangup(chan) && (res != AST_PBX_KEEPALIVE)) {
1831                 if (calldurationlimit)
1832                         chan->whentohangup = 0;
1833                 res = 0;
1834         }
1835
1836 done:
1837         return res;
1838 }
1839
1840 static int dial_exec(struct ast_channel *chan, void *data)
1841 {
1842         struct ast_flags64 peerflags;
1843
1844         memset(&peerflags, 0, sizeof(peerflags));
1845
1846         return dial_exec_full(chan, data, &peerflags, NULL);
1847 }
1848
1849 static int retrydial_exec(struct ast_channel *chan, void *data)
1850 {
1851         char *parse;
1852         const char *context = NULL;
1853         int sleep = 0, loops = 0, res = -1;
1854         struct ast_flags64 peerflags = { 0, };
1855         AST_DECLARE_APP_ARGS(args,
1856                 AST_APP_ARG(announce);
1857                 AST_APP_ARG(sleep);
1858                 AST_APP_ARG(retries);
1859                 AST_APP_ARG(dialdata);
1860         );
1861
1862         if (ast_strlen_zero(data)) {
1863                 ast_log(LOG_WARNING, "RetryDial requires an argument!\n");
1864                 return -1;
1865         }       
1866
1867         parse = ast_strdupa(data);
1868         AST_STANDARD_APP_ARGS(args, parse);
1869
1870         if ((sleep = atoi(args.sleep))) {
1871                 sleep *= 1000;
1872         }
1873
1874         loops = atoi(args.retries);
1875
1876         if (!args.dialdata) {
1877                 ast_log(LOG_ERROR, "%s requires a 4th argument (dialdata)\n", rapp);
1878                 goto done;
1879         }
1880                 
1881         if (sleep < 1000)
1882                 sleep = 10000;
1883
1884         if (!loops)
1885                 loops = -1;     /* run forever */
1886         
1887         context = pbx_builtin_getvar_helper(chan, "EXITCONTEXT");
1888
1889         res = 0;
1890         while (loops) {
1891                 int continue_exec;
1892
1893                 chan->data = "Retrying";
1894                 if (ast_test_flag(chan, AST_FLAG_MOH))
1895                         ast_moh_stop(chan);
1896
1897                 res = dial_exec_full(chan, args.dialdata, &peerflags, &continue_exec);
1898                 if (continue_exec)
1899                         break;
1900
1901                 if (res == 0) {
1902                         if (ast_test_flag64(&peerflags, OPT_DTMF_EXIT)) {
1903                                 if (!ast_strlen_zero(args.announce)) {
1904                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
1905                                                 if(!(res = ast_streamfile(chan, args.announce, chan->language)))                                                                
1906                                                         ast_waitstream(chan, AST_DIGIT_ANY);
1907                                         } else
1908                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
1909                                 }
1910                                 if (!res && sleep) {
1911                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
1912                                                 ast_moh_start(chan, NULL, NULL);
1913                                         res = ast_waitfordigit(chan, sleep);
1914                                 }
1915                         } else {
1916                                 if (!ast_strlen_zero(args.announce)) {
1917                                         if (ast_fileexists(args.announce, NULL, chan->language) > 0) {
1918                                                 if (!(res = ast_streamfile(chan, args.announce, chan->language)))
1919                                                         res = ast_waitstream(chan, "");
1920                                         } else
1921                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", args.announce);
1922                                 }
1923                                 if (sleep) {
1924                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
1925                                                 ast_moh_start(chan, NULL, NULL);
1926                                         if (!res)
1927                                                 res = ast_waitfordigit(chan, sleep);
1928                                 }
1929                         }
1930                 }
1931
1932                 if (res < 0)
1933                         break;
1934                 else if (res > 0) { /* Trying to send the call elsewhere (1 digit ext) */
1935                         if (onedigit_goto(chan, context, (char) res, 1)) {
1936                                 res = 0;
1937                                 break;
1938                         }
1939                 }
1940                 loops--;
1941         }
1942         if (loops == 0)
1943                 res = 0;
1944         else if (res == 1)
1945                 res = 0;
1946
1947         if (ast_test_flag(chan, AST_FLAG_MOH))
1948                 ast_moh_stop(chan);
1949  done:
1950         return res;
1951 }
1952
1953 static int unload_module(void)
1954 {
1955         int res;
1956         struct ast_context *con;
1957
1958         res = ast_unregister_application(app);
1959         res |= ast_unregister_application(rapp);
1960
1961         if ((con = ast_context_find("app_dial_gosub_virtual_context")))
1962                 ast_context_remove_extension2(con, "s", 1, NULL);
1963
1964         return res;
1965 }
1966
1967 static int load_module(void)
1968 {
1969         int res;
1970         struct ast_context *con;
1971
1972         con = ast_context_find("app_dial_gosub_virtual_context");
1973         if (!con)
1974                 con = ast_context_create(NULL, "app_dial_gosub_virtual_context", "app_dial");
1975         if (!con)
1976                 ast_log(LOG_ERROR, "Dial virtual context 'app_dial_gosub_virtual_context' does not exist and unable to create\n");
1977         else
1978                 ast_add_extension2(con, 1, "s", 1, NULL, NULL, "KeepAlive", ast_strdup(""), ast_free_ptr, "app_dial");
1979
1980         res = ast_register_application(app, dial_exec, synopsis, descrip);
1981         res |= ast_register_application(rapp, retrydial_exec, rsynopsis, rdescrip);
1982         
1983         return res;
1984 }
1985
1986 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Dialing Application");