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 <stdlib.h>
  37 #include <stdio.h>
  38 #include <sys/time.h>
  39 #include <sys/signal.h>
  40 #include <sys/stat.h>
  41 #include <netinet/in.h>
  42
  43 #include "asterisk/lock.h"
  44 #include "asterisk/file.h"
  45 #include "asterisk/logger.h"
  46 #include "asterisk/channel.h"
  47 #include "asterisk/pbx.h"
  48 #include "asterisk/options.h"
  49 #include "asterisk/module.h"
  50 #include "asterisk/translate.h"
  51 #include "asterisk/say.h"
  52 #include "asterisk/config.h"
  53 #include "asterisk/features.h"
  54 #include "asterisk/musiconhold.h"
  55 #include "asterisk/callerid.h"
  56 #include "asterisk/utils.h"
  57 #include "asterisk/app.h"
  58 #include "asterisk/causes.h"
  59 #include "asterisk/rtp.h"
  60 #include "asterisk/manager.h"
  61 #include "asterisk/privacy.h"
  62 #include "asterisk/stringfields.h"
  63
  64 static char *app = "Dial";
  65
  66 static char *synopsis = "Place a call and connect to the current channel";
  67
  68 static char *descrip =
  69 "  Dial(Technology/resource[&Tech2/resource2...][|timeout][|options][|URL]):\n"
  70 "This application will place calls to one or more specified channels. As soon\n"
  71 "as one of the requested channels answers, the originating channel will be\n"
  72 "answered, if it has not already been answered. These two channels will then\n"
  73 "be active in a bridged call. All other channels that were requested will then\n"
  74 "be hung up.\n"
  75 "  Unless there is a timeout specified, the Dial application will wait\n"
  76 "indefinitely until one of the called channels answers, the user hangs up, or\n"
  77 "if all of the called channels are busy or unavailable. Dialplan executing will\n"
  78 "continue if no requested channels can be called, or if the timeout expires.\n\n"
  79 "  This application sets the following channel variables upon completion:\n"
  80 "    DIALEDTIME   - This is the time from dialing a channel until when it\n"
  81 "                   is disconnected.\n"
  82 "    ANSWEREDTIME - This is the amount of time for actual call.\n"
  83 "    DIALSTATUS   - This is the status of the call:\n"
  84 "                   CHANUNAVAIL | CONGESTION | NOANSWER | BUSY | ANSWER | CANCEL\n"
  85 "                   DONTCALL | TORTURE | INVALIDARGS\n"
  86 "  For the Privacy and Screening Modes, the DIALSTATUS variable will be set to\n"
  87 "DONTCALL if the called party chooses to send the calling party to the 'Go Away'\n"
  88 "script. The DIALSTATUS variable will be set to TORTURE if the called party\n"
  89 "wants to send the caller to the 'torture' script.\n"
  90 "  This application will report normal termination if the originating channel\n"
  91 "hangs up, or if the call is bridged and either of the parties in the bridge\n"
  92 "ends the call.\n"
  93 "  The optional URL will be sent to the called party if the channel supports it.\n"
  94 "  If the OUTBOUND_GROUP variable is set, all peer channels created by this\n"
  95 "application will be put into that group (as in Set(GROUP()=...).\n"
  96 "  If the OUTBOUND_GROUP_ONCE variable is set, all peer channels created by this\n"
  97 "application will be put into that group (as in Set(GROUP()=...). Unlike OUTBOUND_GROUP,\n"
  98 "however, the variable will be unset after use.\n\n"
  99 "  Options:\n"
 100 "    A(x) - Play an announcement to the called party, using 'x' as the file.\n"
 101 "    C    - Reset the CDR for this call.\n"
 102 "    c    - If DIAL cancels this call, always set the flag to tell the channel\n"
 103 "           driver that the call is answered elsewhere.\n"
 104 "    d    - Allow the calling user to dial a 1 digit extension while waiting for\n"
 105 "           a call to be answered. Exit to that extension if it exists in the\n"
 106 "           current context, or the context defined in the EXITCONTEXT variable,\n"
 107 "           if it exists.\n"
 108 "    D([called][:calling]) - Send the specified DTMF strings *after* the called\n"
 109 "           party has answered, but before the call gets bridged. The 'called'\n"
 110 "           DTMF string is sent to the called party, and the 'calling' DTMF\n"
 111 "           string is sent to the calling party. Both parameters can be used\n"
 112 "           alone.\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 };
 260
 261 #define DIAL_STILLGOING                 (1 << 30)
 262 #define DIAL_NOFORWARDHTML              (1 << 31)
 263
 264 enum {
 265         OPT_ARG_ANNOUNCE = 0,
 266         OPT_ARG_SENDDTMF,
 267         OPT_ARG_GOTO,
 268         OPT_ARG_DURATION_LIMIT,
 269         OPT_ARG_MUSICBACK,
 270         OPT_ARG_CALLEE_MACRO,
 271         OPT_ARG_CALLEE_GOSUB,
 272         OPT_ARG_PRIVACY,
 273         OPT_ARG_DURATION_STOP,
 274         OPT_ARG_OPERMODE,
 275         /* note: this entry _MUST_ be the last one in the enum */
 276         OPT_ARG_ARRAY_SIZE,
 277 };
 278
 279 AST_APP_OPTIONS(dial_exec_options, {
 280         AST_APP_OPTION_ARG('A', OPT_ANNOUNCE, OPT_ARG_ANNOUNCE),
 281         AST_APP_OPTION('C', OPT_RESETCDR),
 282         AST_APP_OPTION('c', OPT_CANCEL_ELSEWHERE),
 283         AST_APP_OPTION('d', OPT_DTMF_EXIT),
 284         AST_APP_OPTION_ARG('D', OPT_SENDDTMF, OPT_ARG_SENDDTMF),
 285         AST_APP_OPTION('f', OPT_FORCECLID),
 286         AST_APP_OPTION('g', OPT_GO_ON),
 287         AST_APP_OPTION_ARG('G', OPT_GOTO, OPT_ARG_GOTO),
 288         AST_APP_OPTION('h', OPT_CALLEE_HANGUP),
 289         AST_APP_OPTION('H', OPT_CALLER_HANGUP),
 290         AST_APP_OPTION('i', OPT_IGNORE_FORWARDING),
 291         AST_APP_OPTION('k', OPT_CALLEE_PARK),
 292         AST_APP_OPTION('K', OPT_CALLER_PARK),
 293         AST_APP_OPTION_ARG('L', OPT_DURATION_LIMIT, OPT_ARG_DURATION_LIMIT),
 294         AST_APP_OPTION_ARG('m', OPT_MUSICBACK, OPT_ARG_MUSICBACK),
 295         AST_APP_OPTION_ARG('M', OPT_CALLEE_MACRO, OPT_ARG_CALLEE_MACRO),
 296         AST_APP_OPTION('n', OPT_SCREEN_NOINTRO),
 297         AST_APP_OPTION('N', OPT_SCREEN_NOCLID),
 298         AST_APP_OPTION_ARG('O', OPT_OPERMODE,OPT_ARG_OPERMODE),
 299         AST_APP_OPTION('o', OPT_ORIGINAL_CLID),
 300         AST_APP_OPTION('p', OPT_SCREENING),
 301         AST_APP_OPTION_ARG('P', OPT_PRIVACY, OPT_ARG_PRIVACY),
 302         AST_APP_OPTION('r', OPT_RINGBACK),
 303         AST_APP_OPTION_ARG('S', OPT_DURATION_STOP, OPT_ARG_DURATION_STOP),
 304         AST_APP_OPTION('t', OPT_CALLEE_TRANSFER),
 305         AST_APP_OPTION('T', OPT_CALLER_TRANSFER),
 306         AST_APP_OPTION_ARG('U', OPT_CALLEE_GOSUB, OPT_ARG_CALLEE_GOSUB),
 307         AST_APP_OPTION('w', OPT_CALLEE_MONITOR),
 308         AST_APP_OPTION('W', OPT_CALLER_MONITOR),
 309 });
 310
 311 /*
 312  * The list of active channels
 313  */
 314 struct chanlist {
 315         struct chanlist *next;
 316         struct ast_channel *chan;
 317         unsigned int flags;
 318         int forwards;
 319 };
 320
 321
 322 static void hanguptree(struct chanlist *outgoing, struct ast_channel *exception, int answered_elsewhere)
 323 {
 324         /* Hang up a tree of stuff */
 325         struct chanlist *oo;
 326         while (outgoing) {
 327                 /* Hangup any existing lines we have open */
 328                 if (outgoing->chan && (outgoing->chan != exception)) {
 329                         if (answered_elsewhere)
 330                                 ast_set_flag(outgoing->chan, AST_FLAG_ANSWERED_ELSEWHERE);
 331                         ast_hangup(outgoing->chan);
 332                 }
 333                 oo = outgoing;
 334                 outgoing=outgoing->next;
 335                 ast_free(oo);
 336         }
 337 }
 338
 339 #define AST_MAX_FORWARDS   8
 340
 341 #define AST_MAX_WATCHERS 256
 342
 343 /*
 344  * argument to handle_cause() and other functions.
 345  */
 346 struct cause_args {
 347         struct ast_channel *chan;
 348         int busy;
 349         int congestion;
 350         int nochan;
 351 };
 352
 353 static void handle_cause(int cause, struct cause_args *num)
 354 {
 355         struct ast_cdr *cdr = num->chan->cdr;
 356
 357         switch(cause) {
 358         case AST_CAUSE_BUSY:
 359                 if (cdr)
 360                         ast_cdr_busy(cdr);
 361                 num->busy++;
 362                 break;
 363
 364         case AST_CAUSE_CONGESTION:
 365                 if (cdr)
 366                         ast_cdr_failed(cdr);
 367                 num->congestion++;
 368                 break;
 369
 370         case AST_CAUSE_UNREGISTERED:
 371                 if (cdr)
 372                         ast_cdr_failed(cdr);
 373                 num->nochan++;
 374                 break;
 375
 376         case AST_CAUSE_NORMAL_CLEARING:
 377                 break;
 378
 379         default:
 380                 num->nochan++;
 381                 break;
 382         }
 383 }
 384
 385 /* free the buffer if allocated, and set the pointer to the second arg */
 386 #define S_REPLACE(s, new_val)           \
 387         do {                            \
 388                 if (s)                  \
 389                         free(s);        \
 390                 s = (new_val);          \
 391         } while (0)
 392
 393 static int onedigit_goto(struct ast_channel *chan, const char *context, char exten, int pri)
 394 {
 395         char rexten[2] = { exten, '\0' };
 396
 397         if (context) {
 398                 if (!ast_goto_if_exists(chan, context, rexten, pri))
 399                         return 1;
 400         } else {
 401                 if (!ast_goto_if_exists(chan, chan->context, rexten, pri))
 402                         return 1;
 403                 else if (!ast_strlen_zero(chan->macrocontext)) {
 404                         if (!ast_goto_if_exists(chan, chan->macrocontext, rexten, pri))
 405                                 return 1;
 406                 }
 407         }
 408         return 0;
 409 }
 410
 411
 412 static const char *get_cid_name(char *name, int namelen, struct ast_channel *chan)
 413 {
 414         const char *context = S_OR(chan->macrocontext, chan->context);
 415         const char *exten = S_OR(chan->macroexten, chan->exten);
 416
 417         return ast_get_hint(NULL, 0, name, namelen, chan, context, exten) ? name : "";
 418 }
 419
 420 static void senddialevent(struct ast_channel *src, struct ast_channel *dst)
 421 {
 422         manager_event(EVENT_FLAG_CALL, "Dial",
 423                            "SubEvent: Begin\r\n"
 424                            "Source: %s\r\n"
 425                            "Destination: %s\r\n"
 426                            "CallerIDNum: %s\r\n"
 427                            "CallerIDName: %s\r\n"
 428                            "SrcUniqueID: %s\r\n"
 429                            "DestUniqueID: %s\r\n",
 430                            src->name, dst->name, S_OR(src->cid.cid_num, "<unknown>"),
 431                            S_OR(src->cid.cid_name, "<unknown>"), src->uniqueid,
 432                            dst->uniqueid);
 433 }
 434
 435 static void senddialendevent(const struct ast_channel *src, const char *dialstatus)
 436 {
 437         manager_event(EVENT_FLAG_CALL, "Dial",
 438                                         "SubEvent: End\r\n"
 439                                         "Channel: %s\r\n"
 440                                         "DialStatus: %s\r\n",
 441                                         src->name, dialstatus);
 442 }
 443
 444 /*!
 445  * helper function for wait_for_answer()
 446  *
 447  * XXX this code is highly suspicious, as it essentially overwrites
 448  * the outgoing channel without properly deleting it.
 449  */
 450 static void do_forward(struct chanlist *o,
 451         struct cause_args *num, struct ast_flags *peerflags, int single)
 452 {
 453         char tmpchan[256];
 454         struct ast_channel *original = o->chan;
 455         struct ast_channel *c = o->chan; /* the winner */
 456         struct ast_channel *in = num->chan; /* the input channel */
 457         char *stuff;
 458         char *tech;
 459         int cause;
 460
 461         ast_copy_string(tmpchan, c->call_forward, sizeof(tmpchan));
 462         if ((stuff = strchr(tmpchan, '/'))) {
 463                 *stuff++ = '\0';
 464                 tech = tmpchan;
 465         } else {
 466                 const char *forward_context = pbx_builtin_getvar_helper(c, "FORWARD_CONTEXT");
 467                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", c->call_forward, forward_context ? forward_context : c->context);
 468                 stuff = tmpchan;
 469                 tech = "Local";
 470         }
 471         /* Before processing channel, go ahead and check for forwarding */
 472         o->forwards++;
 473         if (o->forwards < AST_MAX_FORWARDS) {
 474                 if (option_verbose > 2)
 475                         ast_verbose(VERBOSE_PREFIX_3 "Now forwarding %s to '%s/%s' (thanks to %s)\n", in->name, tech, stuff, c->name);
 476                 /* If we have been told to ignore forwards, just set this channel to null and continue processing extensions normally */
 477                 if (ast_test_flag(peerflags, OPT_IGNORE_FORWARDING)) {
 478                         if (option_verbose > 2)
 479                                 ast_verbose(VERBOSE_PREFIX_3 "Forwarding %s to '%s/%s' prevented.\n", in->name, tech, stuff);
 480                         c = o->chan = NULL;
 481                         cause = AST_CAUSE_BUSY;
 482                 } else {
 483                         /* Setup parameters */
 484                         c = o->chan = ast_request(tech, in->nativeformats, stuff, &cause);
 485                         if (c) {
 486                                 if (single)
 487                                         ast_channel_make_compatible(o->chan, in);
 488                                 ast_channel_inherit_variables(in, o->chan);
 489                         } else
 490                                 ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
 491                 }
 492         } else {
 493                 if (option_verbose > 2)
 494                         ast_verbose(VERBOSE_PREFIX_3 "Too many forwards from %s\n", c->name);
 495                 cause = AST_CAUSE_CONGESTION;
 496                 c = o->chan = NULL;
 497         }
 498         if (!c) {
 499                 ast_clear_flag(o, DIAL_STILLGOING);
 500                 handle_cause(cause, num);
 501         } else {
 502                 char *new_cid_num, *new_cid_name;
 503                 struct ast_channel *src;
 504
 505                 ast_rtp_make_compatible(c, in, single);
 506                 if (ast_test_flag(o, OPT_FORCECLID)) {
 507                         new_cid_num = ast_strdup(S_OR(in->macroexten, in->exten));
 508                         new_cid_name = NULL; /* XXX no name ? */
 509                         src = c;        /* XXX possible bug in previous code, which used 'winner' ? it may have changed */
 510                 } else {
 511                         new_cid_num = ast_strdup(in->cid.cid_num);
 512                         new_cid_name = ast_strdup(in->cid.cid_name);
 513                         src = in;
 514                 }
 515                 ast_string_field_set(c, accountcode, src->accountcode);
 516                 c->cdrflags = src->cdrflags;
 517                 S_REPLACE(c->cid.cid_num, new_cid_num);
 518                 S_REPLACE(c->cid.cid_name, new_cid_name);
 519
 520                 if (in->cid.cid_ani) { /* XXX or maybe unconditional ? */
 521                         S_REPLACE(c->cid.cid_ani, ast_strdup(in->cid.cid_ani));
 522                 }
 523                 S_REPLACE(c->cid.cid_rdnis, ast_strdup(S_OR(in->macroexten, in->exten)));
 524                 if (ast_call(c, tmpchan, 0)) {
 525                         ast_log(LOG_NOTICE, "Failed to dial on local channel for call forward to '%s'\n", tmpchan);
 526                         ast_clear_flag(o, DIAL_STILLGOING);
 527                         ast_hangup(original);
 528                         c = o->chan = NULL;
 529                         num->nochan++;
 530                 } else {
 531                         senddialevent(in, c);
 532                         /* After calling, set callerid to extension */
 533                         if (!ast_test_flag(peerflags, OPT_ORIGINAL_CLID)) {
 534                                 char cidname[AST_MAX_EXTENSION] = "";
 535                                 ast_set_callerid(c, S_OR(in->macroexten, in->exten), get_cid_name(cidname, sizeof(cidname), in), NULL);
 536                         }
 537                         /* Hangup the original channel now, in case we needed it */
 538                         ast_hangup(original);
 539                 }
 540         }
 541 }
 542
 543 /* argument used for some functions. */
 544 struct privacy_args {
 545         int sentringing;
 546         int privdb_val;
 547         char privcid[256];
 548         char privintro[1024];
 549         char status[256];
 550 };
 551
 552 static struct ast_channel *wait_for_answer(struct ast_channel *in,
 553         struct chanlist *outgoing, int *to, struct ast_flags *peerflags,
 554         struct privacy_args *pa,
 555         const struct cause_args *num_in, int *result)
 556 {
 557         struct cause_args num = *num_in;
 558         int prestart = num.busy + num.congestion + num.nochan;
 559         int orig = *to;
 560         struct ast_channel *peer = NULL;
 561         /* single is set if only one destination is enabled */
 562         int single = outgoing && !outgoing->next && !ast_test_flag(outgoing, OPT_MUSICBACK | OPT_RINGBACK);
 563
 564         if (single) {
 565                 /* Turn off hold music, etc */
 566                 ast_deactivate_generator(in);
 567                 /* If we are calling a single channel, make them compatible for in-band tone purpose */
 568                 ast_channel_make_compatible(outgoing->chan, in);
 569         }
 570
 571
 572         while (*to && !peer) {
 573                 struct chanlist *o;
 574                 int pos = 0;    /* how many channels do we handle */
 575                 int numlines = prestart;
 576                 struct ast_channel *winner;
 577                 struct ast_channel *watchers[AST_MAX_WATCHERS];
 578
 579                 watchers[pos++] = in;
 580                 for (o = outgoing; o; o = o->next) {
 581                         /* Keep track of important channels */
 582                         if (ast_test_flag(o, DIAL_STILLGOING) && o->chan)
 583                                 watchers[pos++] = o->chan;
 584                         numlines++;
 585                 }
 586                 if (pos == 1) { /* only the input channel is available */
 587                         if (numlines == (num.busy + num.congestion + num.nochan)) {
 588                                 if (option_verbose > 2)
 589                                         ast_verbose( VERBOSE_PREFIX_2 "Everyone is busy/congested at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
 590                                 if (num.busy)
 591                                         strcpy(pa->status, "BUSY");
 592                                 else if (num.congestion)
 593                                         strcpy(pa->status, "CONGESTION");
 594                                 else if (num.nochan)
 595                                         strcpy(pa->status, "CHANUNAVAIL");
 596                         } else {
 597                                 if (option_verbose > 2)
 598                                         ast_verbose(VERBOSE_PREFIX_3 "No one is available to answer at this time (%d:%d/%d/%d)\n", numlines, num.busy, num.congestion, num.nochan);
 599                         }
 600                         *to = 0;
 601                         return NULL;
 602                 }
 603                 winner = ast_waitfor_n(watchers, pos, to);
 604                 for (o = outgoing; o; o = o->next) {
 605                         struct ast_frame *f;
 606                         struct ast_channel *c = o->chan;
 607
 608                         if (c == NULL)
 609                                 continue;
 610                         if (ast_test_flag(o, DIAL_STILLGOING) && c->_state == AST_STATE_UP) {
 611                                 if (!peer) {
 612                                         if (option_verbose > 2)
 613                                                 ast_verbose(VERBOSE_PREFIX_3 "%s answered %s\n", c->name, in->name);
 614                                         peer = c;
 615                                         ast_copy_flags(peerflags, o,
 616                                                        OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
 617                                                        OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
 618                                                        OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
 619                                                        OPT_CALLEE_PARK | OPT_CALLER_PARK |
 620                                                        DIAL_NOFORWARDHTML);
 621                                         ast_copy_string(c->dialcontext, "", sizeof(c->dialcontext));
 622                                         ast_copy_string(c->exten, "", sizeof(c->exten));
 623                                 }
 624                                 continue;
 625                         }
 626                         if (c != winner)
 627                                 continue;
 628                         /* here, o->chan == c == winner */
 629                         if (!ast_strlen_zero(c->call_forward)) {
 630                                 do_forward(o, &num, peerflags, single);
 631                                 continue;
 632                         }
 633                         f = ast_read(winner);
 634                         if (!f) {
 635                                 in->hangupcause = c->hangupcause;
 636                                 ast_hangup(c);
 637                                 c = o->chan = NULL;
 638                                 ast_clear_flag(o, DIAL_STILLGOING);
 639                                 handle_cause(in->hangupcause, &num);
 640                                 continue;
 641                         }
 642                         if (f->frametype == AST_FRAME_CONTROL) {
 643                                 switch(f->subclass) {
 644                                 case AST_CONTROL_ANSWER:
 645                                         /* This is our guy if someone answered. */
 646                                         if (!peer) {
 647                                                 if (option_verbose > 2)
 648                                                         ast_verbose( VERBOSE_PREFIX_3 "%s answered %s\n", c->name, in->name);
 649                                                 peer = c;
 650                                                 ast_copy_flags(peerflags, o,
 651                                                                OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
 652                                                                OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
 653                                                                OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
 654                                                                OPT_CALLEE_PARK | OPT_CALLER_PARK |
 655                                                                DIAL_NOFORWARDHTML);
 656                                                 ast_copy_string(c->dialcontext, "", sizeof(c->dialcontext));
 657                                                 ast_copy_string(c->exten, "", sizeof(c->exten));
 658                                                 /* Setup early bridge if appropriate */
 659                                                 ast_channel_early_bridge(in, peer);
 660                                         }
 661                                         /* If call has been answered, then the eventual hangup is likely to be normal hangup */
 662                                         in->hangupcause = AST_CAUSE_NORMAL_CLEARING;
 663                                         c->hangupcause = AST_CAUSE_NORMAL_CLEARING;
 664                                         break;
 665                                 case AST_CONTROL_BUSY:
 666                                         if (option_verbose > 2)
 667                                                 ast_verbose(VERBOSE_PREFIX_3 "%s is busy\n", c->name);
 668                                         in->hangupcause = c->hangupcause;
 669                                         ast_hangup(c);
 670                                         c = o->chan = NULL;
 671                                         ast_clear_flag(o, DIAL_STILLGOING);
 672                                         handle_cause(AST_CAUSE_BUSY, &num);
 673                                         break;
 674                                 case AST_CONTROL_CONGESTION:
 675                                         if (option_verbose > 2)
 676                                                 ast_verbose(VERBOSE_PREFIX_3 "%s is circuit-busy\n", c->name);
 677                                         in->hangupcause = c->hangupcause;
 678                                         ast_hangup(c);
 679                                         c = o->chan = NULL;
 680                                         ast_clear_flag(o, DIAL_STILLGOING);
 681                                         handle_cause(AST_CAUSE_CONGESTION, &num);
 682                                         break;
 683                                 case AST_CONTROL_RINGING:
 684                                         if (option_verbose > 2)
 685                                                 ast_verbose(VERBOSE_PREFIX_3 "%s is ringing\n", c->name);
 686                                         /* Setup early media if appropriate */
 687                                         if (single)
 688                                                 ast_channel_early_bridge(in, c);
 689                                         if (!(pa->sentringing) && !ast_test_flag(outgoing, OPT_MUSICBACK)) {
 690                                                 ast_indicate(in, AST_CONTROL_RINGING);
 691                                                 pa->sentringing++;
 692                                         }
 693                                         break;
 694                                 case AST_CONTROL_PROGRESS:
 695                                         if (option_verbose > 2)
 696                                                 ast_verbose (VERBOSE_PREFIX_3 "%s is making progress passing it to %s\n", c->name, in->name);
 697                                         /* Setup early media if appropriate */
 698                                         if (single)
 699                                                 ast_channel_early_bridge(in, c);
 700                                         if (!ast_test_flag(outgoing, OPT_RINGBACK))
 701                                                 ast_indicate(in, AST_CONTROL_PROGRESS);
 702                                         break;
 703                                 case AST_CONTROL_VIDUPDATE:
 704                                         if (option_verbose > 2)
 705                                                 ast_verbose (VERBOSE_PREFIX_3 "%s requested a video update, passing it to %s\n", c->name, in->name);
 706                                         ast_indicate(in, AST_CONTROL_VIDUPDATE);
 707                                         break;
 708                                 case AST_CONTROL_PROCEEDING:
 709                                         if (option_verbose > 2)
 710                                                 ast_verbose (VERBOSE_PREFIX_3 "%s is proceeding passing it to %s\n", c->name, in->name);
 711                                         if (single)
 712                                                 ast_channel_early_bridge(in, c);
 713                                         if (!ast_test_flag(outgoing, OPT_RINGBACK))
 714                                                 ast_indicate(in, AST_CONTROL_PROCEEDING);
 715                                         break;
 716                                 case AST_CONTROL_HOLD:
 717                                         if (option_verbose > 2)
 718                                                 ast_verbose(VERBOSE_PREFIX_3 "Call on %s placed on hold\n", c->name);
 719                                         ast_indicate(in, AST_CONTROL_HOLD);
 720                                         break;
 721                                 case AST_CONTROL_UNHOLD:
 722                                         if (option_verbose > 2)
 723                                                 ast_verbose(VERBOSE_PREFIX_3 "Call on %s left from hold\n", c->name);
 724                                         ast_indicate(in, AST_CONTROL_UNHOLD);
 725                                         break;
 726                                 case AST_CONTROL_OFFHOOK:
 727                                 case AST_CONTROL_FLASH:
 728                                         /* Ignore going off hook and flash */
 729                                         break;
 730                                 case -1:
 731                                         if (!ast_test_flag(outgoing, OPT_RINGBACK | OPT_MUSICBACK)) {
 732                                                 if (option_verbose > 2)
 733                                                         ast_verbose(VERBOSE_PREFIX_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_flag(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_flag(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_flag(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_flag(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_flag(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                                                 if (option_verbose > 2)
 783                                                         ast_verbose(VERBOSE_PREFIX_3 "User hit %c to disconnect call.\n", f->subclass);
 784                                                 *to=0;
 785                                                 ast_cdr_noanswer(in->cdr);
 786                                                 *result = f->subclass;
 787                                                 strcpy(pa->status, "CANCEL");
 788                                                 ast_frfree(f);
 789                                                 return NULL;
 790                                         }
 791                                 }
 792
 793                                 if (ast_test_flag(peerflags, OPT_CALLER_HANGUP) &&
 794                                                   (f->subclass == '*')) { /* hmm it it not guaranteed to be '*' anymore. */
 795                                         if (option_verbose > 2)
 796                                                 ast_verbose(VERBOSE_PREFIX_3 "User hit %c to disconnect call.\n", f->subclass);
 797                                         *to=0;
 798                                         strcpy(pa->status, "CANCEL");
 799                                         ast_cdr_noanswer(in->cdr);
 800                                         ast_frfree(f);
 801                                         return NULL;
 802                                 }
 803                         }
 804
 805                         /* Forward HTML stuff */
 806                         if (single && (f->frametype == AST_FRAME_HTML) && !ast_test_flag(outgoing, DIAL_NOFORWARDHTML))
 807                                 if(ast_channel_sendhtml(outgoing->chan, f->subclass, f->data, f->datalen) == -1)
 808                                         ast_log(LOG_WARNING, "Unable to send URL\n");
 809
 810
 811                         if (single && ((f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_DTMF_BEGIN) || (f->frametype == AST_FRAME_DTMF_END)))  {
 812                                 if (ast_write(outgoing->chan, f))
 813                                         ast_log(LOG_WARNING, "Unable to forward voice or dtmf\n");
 814                         }
 815                         if (single && (f->frametype == AST_FRAME_CONTROL) &&
 816                                 ((f->subclass == AST_CONTROL_HOLD) ||
 817                                  (f->subclass == AST_CONTROL_UNHOLD) ||
 818                                  (f->subclass == AST_CONTROL_VIDUPDATE))) {
 819                                 if (option_verbose > 2)
 820                                         ast_verbose(VERBOSE_PREFIX_3 "%s requested special control %d, passing it to %s\n", in->name, f->subclass, outgoing->chan->name);
 821                                 ast_indicate_data(outgoing->chan, f->subclass, f->data, f->datalen);
 822                         }
 823                         ast_frfree(f);
 824                 }
 825                 if (!*to && (option_verbose > 2))
 826                         ast_verbose(VERBOSE_PREFIX_3 "Nobody picked up in %d ms\n", orig);
 827                 if (!*to || ast_check_hangup(in)) {
 828                         ast_cdr_noanswer(in->cdr);
 829                 }
 830
 831         }
 832
 833         return peer;
 834 }
 835
 836 static void replace_macro_delimiter(char *s)
 837 {
 838         for (; *s; s++)
 839                 if (*s == '^')
 840                         *s = '|';
 841 }
 842
 843
 844 /* returns true if there is a valid privacy reply */
 845 static int valid_priv_reply(struct ast_flags *opts, int res)
 846 {
 847         if (res < '1')
 848                 return 0;
 849         if (ast_test_flag(opts, OPT_PRIVACY) && res <= '5')
 850                 return 1;
 851         if (ast_test_flag(opts, OPT_SCREENING) && res <= '4')
 852                 return 1;
 853         return 0;
 854 }
 855
 856 static int do_timelimit(struct ast_channel *chan, struct ast_bridge_config *config,
 857         char *parse, unsigned int *calldurationlimit)
 858 {
 859         char *stringp = ast_strdupa(parse);
 860         char *limit_str, *warning_str, *warnfreq_str;
 861         const char *var;
 862         int play_to_caller=0,play_to_callee=0;
 863         int delta;
 864
 865         limit_str = strsep(&stringp, ":");
 866         warning_str = strsep(&stringp, ":");
 867         warnfreq_str = strsep(&stringp, ":");
 868
 869         config->timelimit = atol(limit_str);
 870         if (warning_str)
 871                 config->play_warning = atol(warning_str);
 872         if (warnfreq_str)
 873                 config->warning_freq = atol(warnfreq_str);
 874
 875         if (!config->timelimit) {
 876                 ast_log(LOG_WARNING, "Dial does not accept L(%s), hanging up.\n", limit_str);
 877                 config->timelimit = config->play_warning = config->warning_freq = 0;
 878                 config->warning_sound = NULL;
 879                 return -1;      /* error */
 880         } else if ( (delta = config->play_warning - config->timelimit) > 0) {
 881                 int w = config->warning_freq;
 882
 883                 /* If the first warning is requested _after_ the entire call would end,
 884                    and no warning frequency is requested, then turn off the warning. If
 885                    a warning frequency is requested, reduce the 'first warning' time by
 886                    that frequency until it falls within the call's total time limit.
 887                    Graphically:
 888                                   timelim->|    delta        |<-playwarning
 889                         0__________________|_________________|
 890                                          | w  |    |    |    |
 891
 892                    so the number of intervals to cut is 1+(delta-1)/w
 893                 */
 894
 895                 if (w == 0) {
 896                         config->play_warning = 0;
 897                 } else {
 898                         config->play_warning -= w * ( 1 + (delta-1)/w );
 899                         if (config->play_warning < 1)
 900                                 config->play_warning = config->warning_freq = 0;
 901                 }
 902         }
 903
 904         var = pbx_builtin_getvar_helper(chan,"LIMIT_PLAYAUDIO_CALLER");
 905         play_to_caller = var ? ast_true(var) : 1;
 906
 907         var = pbx_builtin_getvar_helper(chan,"LIMIT_PLAYAUDIO_CALLEE");
 908         play_to_callee = var ? ast_true(var) : 0;
 909
 910         if (!play_to_caller && !play_to_callee)
 911                 play_to_caller = 1;
 912
 913         var = pbx_builtin_getvar_helper(chan,"LIMIT_WARNING_FILE");
 914         config->warning_sound = S_OR(var, "timeleft");
 915
 916         /* The code looking at config wants a NULL, not just "", to decide
 917          * that the message should not be played, so we replace "" with NULL.
 918          * Note, pbx_builtin_getvar_helper _can_ return NULL if the variable is
 919          * not found.
 920          */
 921         var = pbx_builtin_getvar_helper(chan,"LIMIT_TIMEOUT_FILE");
 922         config->end_sound = S_OR(var, NULL);
 923         var = pbx_builtin_getvar_helper(chan,"LIMIT_CONNECT_FILE");
 924         config->start_sound = S_OR(var, NULL);
 925
 926         /* undo effect of S(x) in case they are both used */
 927         *calldurationlimit = 0;
 928         /* more efficient to do it like S(x) does since no advanced opts */
 929         if (!config->play_warning && !config->start_sound && !config->end_sound && config->timelimit) {
 930                 *calldurationlimit = config->timelimit / 1000;
 931                 if (option_verbose > 2)
 932                         ast_verbose(VERBOSE_PREFIX_3 "Setting call duration limit to %d seconds.\n",
 933                                 *calldurationlimit);
 934                 config->timelimit = play_to_caller = play_to_callee =
 935                 config->play_warning = config->warning_freq = 0;
 936         } else if (option_verbose > 2) {
 937                 ast_verbose(VERBOSE_PREFIX_3 "Limit Data for this call:\n");
 938                 ast_verbose(VERBOSE_PREFIX_4 "timelimit      = %ld\n", config->timelimit);
 939                 ast_verbose(VERBOSE_PREFIX_4 "play_warning   = %ld\n", config->play_warning);
 940                 ast_verbose(VERBOSE_PREFIX_4 "play_to_caller = %s\n", play_to_caller ? "yes" : "no");
 941                 ast_verbose(VERBOSE_PREFIX_4 "play_to_callee = %s\n", play_to_callee ? "yes" : "no");
 942                 ast_verbose(VERBOSE_PREFIX_4 "warning_freq   = %ld\n", config->warning_freq);
 943                 ast_verbose(VERBOSE_PREFIX_4 "start_sound    = %s\n", S_OR(config->start_sound, ""));
 944                 ast_verbose(VERBOSE_PREFIX_4 "warning_sound  = %s\n", config->warning_sound);
 945                 ast_verbose(VERBOSE_PREFIX_4 "end_sound      = %s\n", S_OR(config->end_sound, ""));
 946         }
 947         if (play_to_caller)
 948                 ast_set_flag(&(config->features_caller), AST_FEATURE_PLAY_WARNING);
 949         if (play_to_callee)
 950                 ast_set_flag(&(config->features_callee), AST_FEATURE_PLAY_WARNING);
 951         return 0;
 952 }
 953
 954 static int do_privacy(struct ast_channel *chan, struct ast_channel *peer,
 955     struct ast_flags *opts, char **opt_args, struct privacy_args *pa)
 956 {
 957
 958         int res2;
 959         int loopcount = 0;
 960
 961         /* Get the user's intro, store it in priv-callerintros/$CID,
 962            unless it is already there-- this should be done before the
 963            call is actually dialed  */
 964
 965         /* all ring indications and moh for the caller has been halted as soon as the
 966            target extension was picked up. We are going to have to kill some
 967            time and make the caller believe the peer hasn't picked up yet */
 968
 969         if (ast_test_flag(opts, OPT_MUSICBACK) && !ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
 970                 char *original_moh = ast_strdupa(chan->musicclass);
 971                 ast_indicate(chan, -1);
 972                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
 973                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
 974                 ast_string_field_set(chan, musicclass, original_moh);
 975         } else if (ast_test_flag(opts, OPT_RINGBACK)) {
 976                 ast_indicate(chan, AST_CONTROL_RINGING);
 977                 pa->sentringing++;
 978         }
 979
 980         /* Start autoservice on the other chan ?? */
 981         res2 = ast_autoservice_start(chan);
 982         /* Now Stream the File */
 983         for (loopcount = 0; loopcount < 3; loopcount++) {
 984                 if (res2 && loopcount == 0)     /* error in ast_autoservice_start() */
 985                         break;
 986                 if (!res2)      /* on timeout, play the message again */
 987                         res2 = ast_play_and_wait(peer,"priv-callpending");
 988                 if (!valid_priv_reply(opts, res2))
 989                         res2 = 0;
 990                 /* priv-callpending script:
 991                    "I have a caller waiting, who introduces themselves as:"
 992                 */
 993                 if (!res2)
 994                         res2 = ast_play_and_wait(peer, pa->privintro);
 995                 if (!valid_priv_reply(opts, res2))
 996                         res2 = 0;
 997                 /* now get input from the called party, as to their choice */
 998                 if( !res2 ) {
 999                         /* XXX can we have both, or they are mutually exclusive ? */
1000                         if( ast_test_flag(opts, OPT_PRIVACY) )
1001                                 res2 = ast_play_and_wait(peer,"priv-callee-options");
1002                         if( ast_test_flag(opts, OPT_SCREENING) )
1003                                 res2 = ast_play_and_wait(peer,"screen-callee-options");
1004                 }
1005                 /*! \page DialPrivacy Dial Privacy scripts
1006                 \par priv-callee-options script:
1007                         "Dial 1 if you wish this caller to reach you directly in the future,
1008                                 and immediately connect to their incoming call
1009                          Dial 2 if you wish to send this caller to voicemail now and
1010                                 forevermore.
1011                          Dial 3 to send this caller to the torture menus, now and forevermore.
1012                          Dial 4 to send this caller to a simple "go away" menu, now and forevermore.
1013                          Dial 5 to allow this caller to come straight thru to you in the future,
1014                                 but right now, just this once, send them to voicemail."
1015                 \par screen-callee-options script:
1016                         "Dial 1 if you wish to immediately connect to the incoming call
1017                          Dial 2 if you wish to send this caller to voicemail.
1018                          Dial 3 to send this caller to the torture menus.
1019                          Dial 4 to send this caller to a simple "go away" menu.
1020                 */
1021                 if (valid_priv_reply(opts, res2))
1022                         break;
1023                 /* invalid option */
1024                 res2 = ast_play_and_wait(peer, "vm-sorry");
1025         }
1026
1027         if (ast_test_flag(opts, OPT_MUSICBACK)) {
1028                 ast_moh_stop(chan);
1029         } else if (ast_test_flag(opts, OPT_RINGBACK)) {
1030                 ast_indicate(chan, -1);
1031                 pa->sentringing=0;
1032         }
1033         ast_autoservice_stop(chan);
1034         if(ast_test_flag(opts, OPT_PRIVACY) && (res2 >= '1' && res2 <= '5')) {
1035                 /* map keypresses to various things, the index is res2 - '1' */
1036                 static const char *_val[] = { "ALLOW", "DENY", "TORTURE", "KILL", "ALLOW" };
1037                 static const int _flag[] = { AST_PRIVACY_ALLOW, AST_PRIVACY_DENY, AST_PRIVACY_TORTURE, AST_PRIVACY_KILL, AST_PRIVACY_ALLOW};
1038                 int i = res2 - '1';
1039                 if (option_verbose > 2)
1040                         ast_verbose(VERBOSE_PREFIX_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_flag(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_flag(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 if (option_verbose > 2)
1080                                 ast_verbose(VERBOSE_PREFIX_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_flags *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_flag(opts, OPT_PRIVACY) ) {
1101                         if (option_verbose > 2)
1102                                 ast_verbose(VERBOSE_PREFIX_3  "Privacy DB is '%s', clid is '%s'\n",
1103                                              opt_args[OPT_ARG_PRIVACY], l);
1104                         pa->privdb_val = ast_privacy_check(opt_args[OPT_ARG_PRIVACY], l);
1105                 } else {
1106                         if (option_verbose > 2)
1107                                 ast_verbose(VERBOSE_PREFIX_3  "Privacy Screening, clid is '%s'\n", l);
1108                         pa->privdb_val = AST_PRIVACY_UNKNOWN;
1109                 }
1110         } else {
1111                 char *tnam, *tn2;
1112
1113                 tnam = ast_strdupa(chan->name);
1114                 /* clean the channel name so slashes don't try to end up in disk file name */
1115                 for (tn2 = tnam; *tn2; tn2++) {
1116                         if (*tn2=='/')  /* any other chars to be afraid of? */
1117                                 *tn2 = '=';
1118                 }
1119                 if (option_verbose > 2)
1120                         ast_verbose(VERBOSE_PREFIX_3  "Privacy-- callerid is empty\n");
1121
1122                 snprintf(callerid, sizeof(callerid), "NOCALLERID_%s%s", chan->exten, tnam);
1123                 l = callerid;
1124                 pa->privdb_val = AST_PRIVACY_UNKNOWN;
1125         }
1126
1127         ast_copy_string(pa->privcid,l,sizeof(pa->privcid));
1128
1129         if( strncmp(pa->privcid,"NOCALLERID",10) != 0 && ast_test_flag(opts, OPT_SCREEN_NOCLID) ) { /* if callerid is set, and ast_test_flag(&opts, OPT_SCREEN_NOCLID) is set also */
1130                 if (option_verbose > 2)
1131                         ast_verbose( VERBOSE_PREFIX_3  "CallerID set (%s); N option set; Screening should be off\n", pa->privcid);
1132                 pa->privdb_val = AST_PRIVACY_ALLOW;
1133         } else if (ast_test_flag(opts, OPT_SCREEN_NOCLID) && strncmp(pa->privcid,"NOCALLERID",10) == 0 ) {
1134                 if (option_verbose > 2)
1135                         ast_verbose( VERBOSE_PREFIX_3  "CallerID blank; N option set; Screening should happen; dbval is %d\n", pa->privdb_val);
1136         }
1137
1138         if (pa->privdb_val == AST_PRIVACY_DENY ) {
1139                 ast_copy_string(pa->status, "NOANSWER", sizeof(pa->status));
1140                 if (option_verbose > 2)
1141                         ast_verbose( VERBOSE_PREFIX_3  "Privacy DB reports PRIVACY_DENY for this callerid. Dial reports unavailable\n");
1142                 return 0;
1143         } else if (pa->privdb_val == AST_PRIVACY_KILL ) {
1144                 ast_copy_string(pa->status, "DONTCALL", sizeof(pa->status));
1145                 return 0; /* Is this right? */
1146         } else if (pa->privdb_val == AST_PRIVACY_TORTURE ) {
1147                 ast_copy_string(pa->status, "TORTURE", sizeof(pa->status));
1148                 return 0; /* is this right??? */
1149         } else if (pa->privdb_val == AST_PRIVACY_UNKNOWN ) {
1150                 /* Get the user's intro, store it in priv-callerintros/$CID,
1151                    unless it is already there-- this should be done before the
1152                    call is actually dialed  */
1153
1154                 /* make sure the priv-callerintros dir actually exists */
1155                 snprintf(pa->privintro, sizeof(pa->privintro), "%s/sounds/priv-callerintros", ast_config_AST_DATA_DIR);
1156                 if ((res = ast_mkdir(pa->privintro, 0755))) {
1157                         ast_log(LOG_WARNING, "privacy: can't create directory priv-callerintros: %s\n", strerror(res));
1158                         return -1;
1159                 }
1160
1161                 snprintf(pa->privintro, sizeof(pa->privintro), "priv-callerintros/%s", pa->privcid);
1162                 if (ast_fileexists(pa->privintro, NULL, NULL ) > 0 && strncmp(pa->privcid, "NOCALLERID", 10) != 0) {
1163                         /* the DELUX version of this code would allow this caller the
1164                            option to hear and retape their previously recorded intro.
1165                         */
1166                 } else {
1167                         int duration; /* for feedback from play_and_wait */
1168                         /* the file doesn't exist yet. Let the caller submit his
1169                            vocal intro for posterity */
1170                         /* priv-recordintro script:
1171
1172                            "At the tone, please say your name:"
1173
1174                         */
1175                         ast_answer(chan);
1176                         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 */
1177                                                                         /* don't think we'll need a lock removed, we took care of
1178                                                                            conflicts by naming the pa.privintro file */
1179                         if (res == -1) {
1180                                 /* Delete the file regardless since they hung up during recording */
1181                                 ast_filedelete(pa->privintro, NULL);
1182                                 if (ast_fileexists(pa->privintro,NULL,NULL ) > 0 )
1183                                         ast_log(LOG_NOTICE,"privacy: ast_filedelete didn't do its job on %s\n", pa->privintro);
1184                                 else if (option_verbose > 2)
1185                                         ast_verbose( VERBOSE_PREFIX_3 "Successfully deleted %s intro file\n", pa->privintro);
1186                                 return -1;
1187                         }
1188                         if (!ast_streamfile(chan, "vm-dialout", chan->language) )
1189                                 ast_waitstream(chan, "");
1190                 }
1191         }
1192         return 1;       /* success */
1193 }
1194
1195 static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags *peerflags, int *continue_exec)
1196 {
1197         int res = -1;   /* default: error */
1198         char *rest, *cur;       /* scan the list of destinations */
1199         struct chanlist *outgoing = NULL;       /* list of destinations */
1200         struct ast_channel *peer;
1201         int to; /* timeout */
1202         struct cause_args num = { chan, 0, 0, 0 };
1203         int cause;
1204         char numsubst[256];
1205         char cidname[AST_MAX_EXTENSION] = "";
1206
1207         struct ast_bridge_config config;
1208         unsigned int calldurationlimit = 0;
1209         char *dtmfcalled = NULL, *dtmfcalling = NULL;
1210         struct privacy_args pa = {
1211                 .sentringing = 0,
1212                 .privdb_val = 0,
1213                 .status = "INVALIDARGS",
1214         };
1215         int sentringing = 0, moh = 0;
1216         const char *outbound_group = NULL;
1217         int result = 0;
1218         time_t start_time;
1219         char *parse;
1220         int opermode = 0;
1221         AST_DECLARE_APP_ARGS(args,
1222                              AST_APP_ARG(peers);
1223                              AST_APP_ARG(timeout);
1224                              AST_APP_ARG(options);
1225                              AST_APP_ARG(url);
1226         );
1227         struct ast_flags opts = { 0, };
1228         char *opt_args[OPT_ARG_ARRAY_SIZE];
1229
1230         if (ast_strlen_zero(data)) {
1231                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1232                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1233                 return -1;
1234         }
1235
1236         parse = ast_strdupa(data);
1237
1238         AST_STANDARD_APP_ARGS(args, parse);
1239
1240         memset(&config,0,sizeof(struct ast_bridge_config));
1241
1242         if (!ast_strlen_zero(args.options) &&
1243                         ast_app_parse_options(dial_exec_options, &opts, opt_args, args.options)) {
1244                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1245                 goto done;
1246         }
1247
1248         if (ast_strlen_zero(args.peers)) {
1249                 ast_log(LOG_WARNING, "Dial requires an argument (technology/number)\n");
1250                 pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1251                 goto done;
1252         }
1253
1254         if (ast_test_flag(&opts, OPT_OPERMODE)) {
1255                 opermode = ast_strlen_zero(opt_args[OPT_ARG_OPERMODE]) ? 1 : atoi(opt_args[OPT_ARG_OPERMODE]);
1256                 if (option_verbose > 2)
1257                         ast_verbose(VERBOSE_PREFIX_3 "Setting operator services mode to %d.\n", opermode);
1258         }
1259
1260         if (ast_test_flag(&opts, OPT_DURATION_STOP) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_STOP])) {
1261                 calldurationlimit = atoi(opt_args[OPT_ARG_DURATION_STOP]);
1262                 if (!calldurationlimit) {
1263                         ast_log(LOG_WARNING, "Dial does not accept S(%s), hanging up.\n", opt_args[OPT_ARG_DURATION_STOP]);
1264                         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1265                         goto done;
1266                 }
1267                 if (option_verbose > 2)
1268                         ast_verbose(VERBOSE_PREFIX_3 "Setting call duration limit to %d seconds.\n", calldurationlimit);
1269         }
1270
1271         if (ast_test_flag(&opts, OPT_SENDDTMF) && !ast_strlen_zero(opt_args[OPT_ARG_SENDDTMF])) {
1272                 dtmfcalling = opt_args[OPT_ARG_SENDDTMF];
1273                 dtmfcalled = strsep(&dtmfcalling, ":");
1274         }
1275
1276         if (ast_test_flag(&opts, OPT_DURATION_LIMIT) && !ast_strlen_zero(opt_args[OPT_ARG_DURATION_LIMIT])) {
1277                 if (do_timelimit(chan, &config, opt_args[OPT_ARG_DURATION_LIMIT], &calldurationlimit))
1278                         goto done;
1279         }
1280
1281         if (ast_test_flag(&opts, OPT_RESETCDR) && chan->cdr)
1282                 ast_cdr_reset(chan->cdr, NULL);
1283         if (ast_test_flag(&opts, OPT_PRIVACY) && ast_strlen_zero(opt_args[OPT_ARG_PRIVACY]))
1284                 opt_args[OPT_ARG_PRIVACY] = ast_strdupa(chan->exten);
1285
1286         if (ast_test_flag(&opts, OPT_PRIVACY) || ast_test_flag(&opts, OPT_SCREENING)) {
1287                 res = setup_privacy_args(&pa, &opts, opt_args, chan);
1288                 if (res <= 0)
1289                         goto out;
1290                 res = -1;       /* reset default */
1291         }
1292
1293         if (continue_exec)
1294                 *continue_exec = 0;
1295
1296         /* If a channel group has been specified, get it for use when we create peer channels */
1297         if ((outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP_ONCE"))) {
1298                 outbound_group = ast_strdupa(outbound_group);
1299                 pbx_builtin_setvar_helper(chan, "OUTBOUND_GROUP_ONCE", NULL);
1300         } else {
1301                 outbound_group = pbx_builtin_getvar_helper(chan, "OUTBOUND_GROUP");
1302         }
1303
1304         ast_copy_flags(peerflags, &opts, OPT_DTMF_EXIT | OPT_GO_ON | OPT_ORIGINAL_CLID | OPT_CALLER_HANGUP | OPT_IGNORE_FORWARDING);
1305         /* loop through the list of dial destinations */
1306         rest = args.peers;
1307         while ((cur = strsep(&rest, "&")) ) {
1308                 struct chanlist *tmp;
1309                 struct ast_channel *tc; /* channel for this destination */
1310                 /* Get a technology/[device:]number pair */
1311                 char *number = cur;
1312                 char *tech = strsep(&number, "/");
1313                 if (!number) {
1314                         ast_log(LOG_WARNING, "Dial argument takes format (technology/[device:]number1)\n");
1315                         goto out;
1316                 }
1317                 if (!(tmp = ast_calloc(1, sizeof(*tmp))))
1318                         goto out;
1319                 if (opts.flags) {
1320                         ast_copy_flags(tmp, &opts,
1321                                        OPT_CANCEL_ELSEWHERE |
1322                                        OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
1323                                        OPT_CALLEE_HANGUP | OPT_CALLER_HANGUP |
1324                                        OPT_CALLEE_MONITOR | OPT_CALLER_MONITOR |
1325                                        OPT_CALLEE_PARK | OPT_CALLER_PARK |
1326                                        OPT_RINGBACK | OPT_MUSICBACK | OPT_FORCECLID);
1327                         ast_set2_flag(tmp, args.url, DIAL_NOFORWARDHTML);
1328                 }
1329                 ast_copy_string(numsubst, number, sizeof(numsubst));
1330                 /* Request the peer */
1331                 tc = ast_request(tech, chan->nativeformats, numsubst, &cause);
1332                 if (!tc) {
1333                         /* If we can't, just go on to the next call */
1334                         ast_log(LOG_WARNING, "Unable to create channel of type '%s' (cause %d - %s)\n",
1335                                     tech, cause, ast_cause2str(cause));
1336                         handle_cause(cause, &num);
1337                         if (!rest)      /* we are on the last destination */
1338                                 chan->hangupcause = cause;
1339                         ast_free(tmp);
1340                         continue;
1341                 }
1342                 pbx_builtin_setvar_helper(tc, "DIALEDPEERNUMBER", numsubst);
1343                 if (!ast_strlen_zero(tc->call_forward)) {
1344                         char tmpchan[256];
1345                         char *stuff;
1346                         char *tech;
1347                         ast_copy_string(tmpchan, tc->call_forward, sizeof(tmpchan));
1348                         if ((stuff = strchr(tmpchan, '/'))) {
1349                                 *stuff++ = '\0';
1350                                 tech = tmpchan;
1351                         } else {
1352                                 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", tc->call_forward, tc->context);
1353                                 stuff = tmpchan;
1354                                 tech = "Local";
1355                         }
1356                         tmp->forwards++;
1357                         if (tmp->forwards < AST_MAX_FORWARDS) {
1358                                 if (option_verbose > 2)
1359                                         ast_verbose(VERBOSE_PREFIX_3 "Now forwarding %s to '%s/%s' (thanks to %s)\n",
1360                                         chan->name, tech, stuff, tc->name);
1361                                 ast_hangup(tc);
1362                                 /* If we have been told to ignore forwards, just set this channel to null
1363                                  * and continue processing extensions normally */
1364                                 if (ast_test_flag(&opts, OPT_IGNORE_FORWARDING)) {
1365                                         tc = NULL;
1366                                         cause = AST_CAUSE_BUSY;
1367                                         if (option_verbose > 2)
1368                                                 ast_verbose(VERBOSE_PREFIX_3 "Forwarding %s to '%s/%s' prevented.\n",
1369                                                         chan->name, tech, stuff);
1370                                 } else {
1371                                         tc = ast_request(tech, chan->nativeformats, stuff, &cause);
1372                                 }
1373                                 if (!tc)
1374                                         ast_log(LOG_NOTICE, "Unable to create local channel for call forward to '%s/%s' (cause = %d)\n", tech, stuff, cause);
1375                                 else
1376                                         ast_channel_inherit_variables(chan, tc);
1377                         } else {
1378                                 if (option_verbose > 2)
1379                                         ast_verbose(VERBOSE_PREFIX_3 "Too many forwards from %s\n", tc->name);
1380                                 ast_hangup(tc);
1381                                 tc = NULL;
1382                                 cause = AST_CAUSE_CONGESTION;
1383                         }
1384                         if (!tc) {
1385                                 handle_cause(cause, &num);
1386                                 ast_free(tmp);
1387                                 continue;
1388                         }
1389                 }
1390
1391                 /* Setup outgoing SDP to match incoming one */
1392                 ast_rtp_make_compatible(tc, chan, !outgoing && !rest);
1393
1394                 /* Inherit specially named variables from parent channel */
1395                 ast_channel_inherit_variables(chan, tc);
1396
1397                 tc->appl = "AppDial";
1398                 tc->data = "(Outgoing Line)";
1399                 tc->whentohangup = 0;
1400
1401                 S_REPLACE(tc->cid.cid_num, ast_strdup(chan->cid.cid_num));
1402                 S_REPLACE(tc->cid.cid_name, ast_strdup(chan->cid.cid_name));
1403                 S_REPLACE(tc->cid.cid_ani, ast_strdup(chan->cid.cid_ani));
1404                 S_REPLACE(tc->cid.cid_rdnis, ast_strdup(chan->cid.cid_rdnis));
1405
1406                 /* Copy language from incoming to outgoing */
1407                 ast_string_field_set(tc, language, chan->language);
1408                 ast_string_field_set(tc, accountcode, chan->accountcode);
1409                 tc->cdrflags = chan->cdrflags;
1410                 if (ast_strlen_zero(tc->musicclass))
1411                         ast_string_field_set(tc, musicclass, chan->musicclass);
1412                 /* Pass callingpres, type of number, tns, ADSI CPE, transfer capability */
1413                 tc->cid.cid_pres = chan->cid.cid_pres;
1414                 tc->cid.cid_ton = chan->cid.cid_ton;
1415                 tc->cid.cid_tns = chan->cid.cid_tns;
1416                 tc->adsicpe = chan->adsicpe;
1417                 tc->transfercapability = chan->transfercapability;
1418
1419                 /* If we have an outbound group, set this peer channel to it */
1420                 if (outbound_group)
1421                         ast_app_group_set_channel(tc, outbound_group);
1422
1423                 /* Inherit context and extension */
1424                 if (!ast_strlen_zero(chan->macrocontext))
1425                         ast_copy_string(tc->dialcontext, chan->macrocontext, sizeof(tc->dialcontext));
1426                 else
1427                         ast_copy_string(tc->dialcontext, chan->context, sizeof(tc->dialcontext));
1428                 if (!ast_strlen_zero(chan->macroexten))
1429                         ast_copy_string(tc->exten, chan->macroexten, sizeof(tc->exten));
1430                 else
1431                         ast_copy_string(tc->exten, chan->exten, sizeof(tc->exten));
1432
1433                 res = ast_call(tc, numsubst, 0);        /* Place the call, but don't wait on the answer */
1434
1435                 /* Save the info in cdr's that we called them */
1436                 if (chan->cdr)
1437                         ast_cdr_setdestchan(chan->cdr, tc->name);
1438
1439                 /* check the results of ast_call */
1440                 if (res) {
1441                         /* Again, keep going even if there's an error */
1442                         ast_debug(1, "ast call on peer returned %d\n", res);
1443                         if (option_verbose > 2)
1444                                 ast_verbose(VERBOSE_PREFIX_3 "Couldn't call %s\n", numsubst);
1445                         ast_hangup(tc);
1446                         tc = NULL;
1447                         ast_free(tmp);
1448                         continue;
1449                 } else {
1450                         senddialevent(chan, tc);
1451                         if (option_verbose > 2)
1452                                 ast_verbose(VERBOSE_PREFIX_3 "Called %s\n", numsubst);
1453                         if (!ast_test_flag(peerflags, OPT_ORIGINAL_CLID))
1454                                 ast_set_callerid(tc, S_OR(chan->macroexten, chan->exten), get_cid_name(cidname, sizeof(cidname), chan), NULL);
1455                 }
1456                 /* Put them in the list of outgoing thingies...  We're ready now.
1457                    XXX If we're forcibly removed, these outgoing calls won't get
1458                    hung up XXX */
1459                 ast_set_flag(tmp, DIAL_STILLGOING);
1460                 tmp->chan = tc;
1461                 tmp->next = outgoing;
1462                 outgoing = tmp;
1463                 /* If this line is up, don't try anybody else */
1464                 if (outgoing->chan->_state == AST_STATE_UP)
1465                         break;
1466         }
1467
1468         if (ast_strlen_zero(args.timeout)) {
1469                 to = -1;
1470         } else {
1471                 to = atoi(args.timeout);
1472                 if (to > 0)
1473                         to *= 1000;
1474                 else
1475                         ast_log(LOG_WARNING, "Invalid timeout specified: '%s'\n", args.timeout);
1476         }
1477
1478         if (!outgoing) {
1479                 strcpy(pa.status, "CHANUNAVAIL");
1480         } else {
1481                 /* Our status will at least be NOANSWER */
1482                 strcpy(pa.status, "NOANSWER");
1483                 if (ast_test_flag(outgoing, OPT_MUSICBACK)) {
1484                         moh = 1;
1485                         if (!ast_strlen_zero(opt_args[OPT_ARG_MUSICBACK])) {
1486                                 char *original_moh = ast_strdupa(chan->musicclass);
1487                                 ast_string_field_set(chan, musicclass, opt_args[OPT_ARG_MUSICBACK]);
1488                                 ast_moh_start(chan, opt_args[OPT_ARG_MUSICBACK], NULL);
1489                                 ast_string_field_set(chan, musicclass, original_moh);
1490                         } else {
1491                                 ast_moh_start(chan, NULL, NULL);
1492                         }
1493                         ast_indicate(chan, AST_CONTROL_PROGRESS);
1494                 } else if (ast_test_flag(outgoing, OPT_RINGBACK)) {
1495                         ast_indicate(chan, AST_CONTROL_RINGING);
1496                         sentringing++;
1497                 }
1498         }
1499
1500         time(&start_time);
1501         peer = wait_for_answer(chan, outgoing, &to, peerflags, &pa, &num, &result);
1502
1503         if (!peer) {
1504                 if (result) {
1505                         res = result;
1506                 } else if (to) { /* Musta gotten hung up */
1507                         res = -1;
1508                 } else { /* Nobody answered, next please? */
1509                         res = 0;
1510                 }
1511                 /* almost done, although the 'else' block is 400 lines */
1512         } else {
1513                 const char *number;
1514                 time_t end_time, answer_time = time(NULL);
1515                 char toast[80]; /* buffer to set variables */
1516
1517                 strcpy(pa.status, "ANSWER");
1518                 /* Ah ha!  Someone answered within the desired timeframe.  Of course after this
1519                    we will always return with -1 so that it is hung up properly after the
1520                    conversation.  */
1521                 hanguptree(outgoing, peer, 1);
1522                 outgoing = NULL;
1523                 /* If appropriate, log that we have a destination channel */
1524                 if (chan->cdr)
1525                         ast_cdr_setdestchan(chan->cdr, peer->name);
1526                 if (peer->name)
1527                         pbx_builtin_setvar_helper(chan, "DIALEDPEERNAME", peer->name);
1528
1529                 number = pbx_builtin_getvar_helper(peer, "DIALEDPEERNUMBER");
1530                 if (!number)
1531                         number = numsubst;
1532                 pbx_builtin_setvar_helper(chan, "DIALEDPEERNUMBER", number);
1533                 if (!ast_strlen_zero(args.url) && ast_channel_supports_html(peer) ) {
1534                         ast_debug(1, "app_dial: sendurl=%s.\n", args.url);
1535                         ast_channel_sendurl( peer, args.url );
1536                 }
1537                 if ( (ast_test_flag(&opts, OPT_PRIVACY) || ast_test_flag(&opts, OPT_SCREENING)) && pa.privdb_val == AST_PRIVACY_UNKNOWN) {
1538                         if (do_privacy(chan, peer, &opts, opt_args, &pa)) {
1539                                 res = 0;
1540                                 goto out;
1541                         }
1542                 }
1543                 if (!ast_test_flag(&opts, OPT_ANNOUNCE) || ast_strlen_zero(opt_args[OPT_ARG_ANNOUNCE])) {
1544                         res = 0;
1545                 } else {
1546                         int digit = 0;
1547                         /* Start autoservice on the other chan */
1548                         res = ast_autoservice_start(chan);
1549                         /* Now Stream the File */
1550                         if (!res)
1551                                 res = ast_streamfile(peer, opt_args[OPT_ARG_ANNOUNCE], peer->language);
1552                         if (!res) {
1553                                 digit = ast_waitstream(peer, AST_DIGIT_ANY);
1554                         }
1555                         /* Ok, done. stop autoservice */
1556                         res = ast_autoservice_stop(chan);
1557                         if (digit > 0 && !res)
1558                                 res = ast_senddigit(chan, digit);
1559                         else
1560                                 res = digit;
1561
1562                 }
1563
1564                 if (chan && peer && ast_test_flag(&opts, OPT_GOTO) && !ast_strlen_zero(opt_args[OPT_ARG_GOTO])) {
1565                         replace_macro_delimiter(opt_args[OPT_ARG_GOTO]);
1566                         ast_parseable_goto(chan, opt_args[OPT_ARG_GOTO]);
1567                         ast_parseable_goto(peer, opt_args[OPT_ARG_GOTO]);
1568                         peer->priority++;
1569                         ast_pbx_start(peer);
1570                         hanguptree(outgoing, NULL, ast_test_flag(&opts, OPT_CANCEL_ELSEWHERE ? 1 : 0));
1571                         if (continue_exec)
1572                                 *continue_exec = 1;
1573                         res = 0;
1574                         goto done;
1575                 }
1576
1577                 if (ast_test_flag(&opts, OPT_CALLEE_MACRO) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_MACRO])) {
1578                         struct ast_app *theapp;
1579                         const char *macro_result;
1580
1581                         res = ast_autoservice_start(chan);
1582                         if (res) {
1583                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
1584                                 res = -1;
1585                         }
1586
1587                         theapp = pbx_findapp("Macro");
1588
1589                         if (theapp && !res) {   /* XXX why check res here ? */
1590                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_MACRO]);
1591                                 res = pbx_exec(peer, theapp, opt_args[OPT_ARG_CALLEE_MACRO]);
1592                                 ast_debug(1, "Macro exited with status %d\n", res);
1593                                 res = 0;
1594                         } else {
1595                                 ast_log(LOG_ERROR, "Could not find application Macro\n");
1596                                 res = -1;
1597                         }
1598
1599                         if (ast_autoservice_stop(chan) < 0) {
1600                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
1601                                 res = -1;
1602                         }
1603
1604                         if (!res && (macro_result = pbx_builtin_getvar_helper(peer, "MACRO_RESULT"))) {
1605                                 char *macro_transfer_dest;
1606
1607                                 if (!strcasecmp(macro_result, "BUSY")) {
1608                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
1609                                         ast_set_flag(peerflags, OPT_GO_ON);
1610                                         res = -1;
1611                                 } else if (!strcasecmp(macro_result, "CONGESTION") || !strcasecmp(macro_result, "CHANUNAVAIL")) {
1612                                         ast_copy_string(pa.status, macro_result, sizeof(pa.status));
1613                                         ast_set_flag(peerflags, OPT_GO_ON);
1614                                         res = -1;
1615                                 } else if (!strcasecmp(macro_result, "CONTINUE")) {
1616                                         /* hangup peer and keep chan alive assuming the macro has changed
1617                                            the context / exten / priority or perhaps
1618                                            the next priority in the current exten is desired.
1619                                         */
1620                                         ast_set_flag(peerflags, OPT_GO_ON);
1621                                         res = -1;
1622                                 } else if (!strcasecmp(macro_result, "ABORT")) {
1623                                         /* Hangup both ends unless the caller has the g flag */
1624                                         res = -1;
1625                                 } else if (!strncasecmp(macro_result, "GOTO:", 5) && (macro_transfer_dest = ast_strdupa(macro_result + 5))) {
1626                                         res = -1;
1627                                         /* perform a transfer to a new extension */
1628                                         if (strchr(macro_transfer_dest, '^')) { /* context^exten^priority*/
1629                                                 replace_macro_delimiter(macro_transfer_dest);
1630                                                 if (!ast_parseable_goto(chan, macro_transfer_dest))
1631                                                         ast_set_flag(peerflags, OPT_GO_ON);
1632                                         }
1633                                 }
1634                         }
1635                 }
1636
1637                 if (ast_test_flag(&opts, OPT_CALLEE_GOSUB) && !ast_strlen_zero(opt_args[OPT_ARG_CALLEE_GOSUB])) {
1638                         struct ast_app *theapp;
1639                         const char *gosub_result;
1640                         char *gosub_args, *gosub_argstart;
1641
1642                         res = ast_autoservice_start(chan);
1643                         if (res) {
1644                                 ast_log(LOG_ERROR, "Unable to start autoservice on calling channel\n");
1645                                 res = -1;
1646                         }
1647
1648                         theapp = pbx_findapp("Gosub");
1649
1650                         if (theapp && !res) {   /* XXX why check res here ? */
1651                                 replace_macro_delimiter(opt_args[OPT_ARG_CALLEE_GOSUB]);
1652
1653                                 /* Set where we came from */
1654                                 ast_copy_string(peer->context, "app_dial_gosub_virtual_context", sizeof(peer->context));
1655                                 ast_copy_string(peer->exten, "s", sizeof(peer->exten));
1656                                 peer->priority = 0;
1657
1658                                 gosub_argstart = strchr(opt_args[OPT_ARG_CALLEE_GOSUB], '|');
1659                                 if (gosub_argstart) {
1660                                         *gosub_argstart = 0;
1661                                         asprintf(&gosub_args, "%s|s|1(%s)", opt_args[OPT_ARG_CALLEE_GOSUB], gosub_argstart + 1);
1662                                         *gosub_argstart = '|';
1663                                 } else {
1664                                         asprintf(&gosub_args, "%s|s|1", opt_args[OPT_ARG_CALLEE_GOSUB]);
1665                                 }
1666
1667                                 if (gosub_args) {
1668                                         res = pbx_exec(peer, theapp, gosub_args);
1669                                         ast_pbx_run(peer);
1670                                         free(gosub_args);
1671                                         if (option_debug)
1672                                                 ast_log(LOG_DEBUG, "Gosub exited with status %d\n", res);
1673                                 } else
1674                                         ast_log(LOG_ERROR, "Could not Allocate string for Gosub arguments -- Gosub Call Aborted!\n");
1675
1676                                 res = 0;
1677                         } else {
1678                                 ast_log(LOG_ERROR, "Could not find application Gosub\n");
1679                                 res = -1;
1680                         }
1681
1682                         if (ast_autoservice_stop(chan) < 0) {
1683                                 ast_log(LOG_ERROR, "Could not stop autoservice on calling channel\n");
1684                                 res = -1;
1685                         }
1686
1687                         if (!res && (gosub_result = pbx_builtin_getvar_helper(peer, "GOSUB_RESULT"))) {
1688                                 char *gosub_transfer_dest;
1689
1690                                 if (!strcasecmp(gosub_result, "BUSY")) {
1691                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
1692                                         ast_set_flag(peerflags, OPT_GO_ON);
1693                                         res = -1;
1694                                 } else if (!strcasecmp(gosub_result, "CONGESTION") || !strcasecmp(gosub_result, "CHANUNAVAIL")) {
1695                                         ast_copy_string(pa.status, gosub_result, sizeof(pa.status));
1696                                         ast_set_flag(peerflags, OPT_GO_ON);
1697                                         res = -1;
1698                                 } else if (!strcasecmp(gosub_result, "CONTINUE")) {
1699                                         /* hangup peer and keep chan alive assuming the macro has changed
1700                                            the context / exten / priority or perhaps
1701                                            the next priority in the current exten is desired.
1702                                         */
1703                                         ast_set_flag(peerflags, OPT_GO_ON);
1704                                         res = -1;
1705                                 } else if (!strcasecmp(gosub_result, "ABORT")) {
1706                                         /* Hangup both ends unless the caller has the g flag */
1707                                         res = -1;
1708                                 } else if (!strncasecmp(gosub_result, "GOTO:", 5) && (gosub_transfer_dest = ast_strdupa(gosub_result + 5))) {
1709                                         res = -1;
1710                                         /* perform a transfer to a new extension */
1711                                         if (strchr(gosub_transfer_dest, '^')) { /* context^exten^priority*/
1712                                                 replace_macro_delimiter(gosub_transfer_dest);
1713                                                 if (!ast_parseable_goto(chan, gosub_transfer_dest))
1714                                                         ast_set_flag(peerflags, OPT_GO_ON);
1715                                         }
1716                                 }
1717                         }
1718                 }
1719
1720                 if (!res) {
1721                         if (calldurationlimit > 0) {
1722                                 peer->whentohangup = time(NULL) + calldurationlimit;
1723                         }
1724                         if (!ast_strlen_zero(dtmfcalled)) {
1725                                 if (option_verbose > 2)
1726                                         ast_verbose(VERBOSE_PREFIX_3 "Sending DTMF '%s' to the called party.\n", dtmfcalled);
1727                                 res = ast_dtmf_stream(peer,chan,dtmfcalled,250);
1728                         }
1729                         if (!ast_strlen_zero(dtmfcalling)) {
1730                                 if (option_verbose > 2)
1731                                         ast_verbose(VERBOSE_PREFIX_3 "Sending DTMF '%s' to the calling party.\n", dtmfcalling);
1732                                 res = ast_dtmf_stream(chan,peer,dtmfcalling,250);
1733                         }
1734                 }
1735
1736                 if (res) {      /* some error */
1737                         res = -1;
1738                         end_time = time(NULL);
1739                 } else {
1740                         if (ast_test_flag(peerflags, OPT_CALLEE_TRANSFER))
1741                                 ast_set_flag(&(config.features_callee), AST_FEATURE_REDIRECT);
1742                         if (ast_test_flag(peerflags, OPT_CALLER_TRANSFER))
1743                                 ast_set_flag(&(config.features_caller), AST_FEATURE_REDIRECT);
1744                         if (ast_test_flag(peerflags, OPT_CALLEE_HANGUP))
1745                                 ast_set_flag(&(config.features_callee), AST_FEATURE_DISCONNECT);
1746                         if (ast_test_flag(peerflags, OPT_CALLER_HANGUP))
1747                                 ast_set_flag(&(config.features_caller), AST_FEATURE_DISCONNECT);
1748                         if (ast_test_flag(peerflags, OPT_CALLEE_MONITOR))
1749                                 ast_set_flag(&(config.features_callee), AST_FEATURE_AUTOMON);
1750                         if (ast_test_flag(peerflags, OPT_CALLER_MONITOR))
1751                                 ast_set_flag(&(config.features_caller), AST_FEATURE_AUTOMON);
1752                         if (ast_test_flag(peerflags, OPT_CALLEE_PARK))
1753                                 ast_set_flag(&(config.features_callee), AST_FEATURE_PARKCALL);
1754                         if (ast_test_flag(peerflags, OPT_CALLER_PARK))
1755                                 ast_set_flag(&(config.features_caller), AST_FEATURE_PARKCALL);
1756
1757                         if (moh) {
1758                                 moh = 0;
1759                                 ast_moh_stop(chan);
1760                         } else if (sentringing) {
1761                                 sentringing = 0;
1762                                 ast_indicate(chan, -1);
1763                         }
1764                         /* Be sure no generators are left on it */
1765                         ast_deactivate_generator(chan);
1766                         /* Make sure channels are compatible */
1767                         res = ast_channel_make_compatible(chan, peer);
1768                         if (res < 0) {
1769                                 ast_log(LOG_WARNING, "Had to drop call because I couldn't make %s compatible with %s\n", chan->name, peer->name);
1770                                 ast_hangup(peer);
1771                                 res = -1;
1772                                 goto done;
1773                         }
1774                         if (opermode && !strncmp(chan->name,"Zap",3) && !strncmp(peer->name,"Zap",3)) {
1775                                 /* XXX what's this special handling for Zap <-> Zap ? */
1776                                 struct oprmode oprmode;
1777
1778                                 oprmode.peer = peer;
1779                                 oprmode.mode = opermode;
1780
1781                                 ast_channel_setoption(chan,
1782                                         AST_OPTION_OPRMODE,&oprmode,sizeof(struct oprmode),0);
1783                         }
1784                         res = ast_bridge_call(chan,peer,&config);
1785                         end_time = time(NULL);
1786                         snprintf(toast, sizeof(toast), "%ld", (long)(end_time - answer_time));
1787                         pbx_builtin_setvar_helper(chan, "ANSWEREDTIME", toast);
1788                 }
1789
1790                 snprintf(toast, sizeof(toast), "%ld", (long)(end_time - start_time));
1791                 pbx_builtin_setvar_helper(chan, "DIALEDTIME", toast);
1792
1793                 if (res != AST_PBX_NO_HANGUP_PEER) {
1794                         if (!chan->_softhangup)
1795                                 chan->hangupcause = peer->hangupcause;
1796                         ast_hangup(peer);
1797                 }
1798         }
1799 out:
1800         if (moh) {
1801                 moh = 0;
1802                 ast_moh_stop(chan);
1803         } else if (sentringing) {
1804                 sentringing = 0;
1805                 ast_indicate(chan, -1);
1806         }
1807         ast_channel_early_bridge(chan, NULL);
1808         hanguptree(outgoing, NULL, 0);  /* In this case, there's no answer anywhere */
1809         pbx_builtin_setvar_helper(chan, "DIALSTATUS", pa.status);
1810         senddialendevent(chan, pa.status);
1811         ast_debug(1, "Exiting with DIALSTATUS=%s.\n", pa.status);
1812
1813         if ((ast_test_flag(peerflags, OPT_GO_ON)) && (!chan->_softhangup) && (res != AST_PBX_KEEPALIVE)) {
1814                 if (calldurationlimit)
1815                         chan->whentohangup = 0;
1816                 res = 0;
1817         }
1818
1819 done:
1820         return res;
1821 }
1822
1823 static int dial_exec(struct ast_channel *chan, void *data)
1824 {
1825         struct ast_flags peerflags;
1826
1827         memset(&peerflags, 0, sizeof(peerflags));
1828
1829         return dial_exec_full(chan, data, &peerflags, NULL);
1830 }
1831
1832 static int retrydial_exec(struct ast_channel *chan, void *data)
1833 {
1834         char *announce = NULL, *dialdata = NULL;
1835         const char *context = NULL;
1836         int sleep = 0, loops = 0, res = -1;
1837         struct ast_flags peerflags;
1838
1839         if (ast_strlen_zero(data)) {
1840                 ast_log(LOG_WARNING, "RetryDial requires an argument!\n");
1841                 return -1;
1842         }
1843
1844         announce = ast_strdupa(data);
1845
1846         memset(&peerflags, 0, sizeof(peerflags));
1847
1848         if ((dialdata = strchr(announce, '|'))) {
1849                 *dialdata++ = '\0';
1850                 if (sscanf(dialdata, "%d", &sleep) == 1) {
1851                         sleep *= 1000;
1852                 } else {
1853                         ast_log(LOG_ERROR, "%s requires the numerical argument <sleep>\n",rapp);
1854                         goto done;
1855                 }
1856                 if ((dialdata = strchr(dialdata, '|'))) {
1857                         *dialdata++ = '\0';
1858                         if (sscanf(dialdata, "%d", &loops) != 1) {
1859                                 ast_log(LOG_ERROR, "%s requires the numerical argument <loops>\n",rapp);
1860                                 goto done;
1861                         }
1862                 }
1863         }
1864
1865         if ((dialdata = strchr(dialdata, '|'))) {
1866                 *dialdata++ = '\0';
1867         } else {
1868                 ast_log(LOG_ERROR, "%s requires more arguments\n",rapp);
1869                 goto done;
1870         }
1871
1872         if (sleep < 1000)
1873                 sleep = 10000;
1874
1875         if (!loops)
1876                 loops = -1;     /* run forever */
1877
1878         context = pbx_builtin_getvar_helper(chan, "EXITCONTEXT");
1879
1880         res = 0;
1881         while (loops) {
1882                 int continue_exec;
1883
1884                 chan->data = "Retrying";
1885                 if (ast_test_flag(chan, AST_FLAG_MOH))
1886                         ast_moh_stop(chan);
1887
1888                 res = dial_exec_full(chan, dialdata, &peerflags, &continue_exec);
1889                 if (continue_exec)
1890                         break;
1891
1892                 if (res == 0) {
1893                         if (ast_test_flag(&peerflags, OPT_DTMF_EXIT)) {
1894                                 if (!ast_strlen_zero(announce)) {
1895                                         if (ast_fileexists(announce, NULL, chan->language)) {
1896                                                 if(!(res = ast_streamfile(chan, announce, chan->language)))
1897                                                         ast_waitstream(chan, AST_DIGIT_ANY);
1898                                         } else
1899                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", announce);
1900                                 }
1901                                 if (!res && sleep) {
1902                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
1903                                                 ast_moh_start(chan, NULL, NULL);
1904                                         res = ast_waitfordigit(chan, sleep);
1905                                 }
1906                         } else {
1907                                 if (!ast_strlen_zero(announce)) {
1908                                         if (ast_fileexists(announce, NULL, chan->language)) {
1909                                                 if (!(res = ast_streamfile(chan, announce, chan->language)))
1910                                                         res = ast_waitstream(chan, "");
1911                                         } else
1912                                                 ast_log(LOG_WARNING, "Announce file \"%s\" specified in Retrydial does not exist\n", announce);
1913                                 }
1914                                 if (sleep) {
1915                                         if (!ast_test_flag(chan, AST_FLAG_MOH))
1916                                                 ast_moh_start(chan, NULL, NULL);
1917                                         if (!res)
1918                                                 res = ast_waitfordigit(chan, sleep);
1919                                 }
1920                         }
1921                 }
1922
1923                 if (res < 0)
1924                         break;
1925                 else if (res > 0) { /* Trying to send the call elsewhere (1 digit ext) */
1926                         if (onedigit_goto(chan, context, (char) res, 1)) {
1927                                 res = 0;
1928                                 break;
1929                         }
1930                 }
1931                 loops--;
1932         }
1933         if (loops == 0)
1934                 res = 0;
1935         else if (res == 1)
1936                 res = 0;
1937
1938         if (ast_test_flag(chan, AST_FLAG_MOH))
1939                 ast_moh_stop(chan);
1940  done:
1941         return res;
1942 }
1943
1944 static int unload_module(void)
1945 {
1946         int res;
1947         struct ast_context *con;
1948
1949         res = ast_unregister_application(app);
1950         res |= ast_unregister_application(rapp);
1951
1952         if ((con = ast_context_find("app_dial_gosub_virtual_context")))
1953                 ast_context_remove_extension2(con, "s", 1, NULL);
1954
1955         return res;
1956 }
1957
1958 static int load_module(void)
1959 {
1960         int res;
1961         struct ast_context *con;
1962
1963         con = ast_context_find("app_dial_gosub_virtual_context");
1964         if (!con)
1965                 con = ast_context_create(NULL, "app_dial_gosub_virtual_context", "app_dial");
1966         if (!con)
1967                 ast_log(LOG_ERROR, "Dial virtual context 'app_dial_gosub_virtual_context' does not exist and unable to create\n");
1968         else
1969                 ast_add_extension2(con, 1, "s", 1, NULL, NULL, "KeepAlive", ast_strdup(""), ast_free, "app_dial");
1970
1971         res = ast_register_application(app, dial_exec, synopsis, descrip);
1972         res |= ast_register_application(rapp, retrydial_exec, rsynopsis, rdescrip);
1973
1974         return res;
1975 }
1976
1977 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Dialing Application");