app.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 1999 - 2005, 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 Convenient Application Routines
  22  *
  23  * \author Mark Spencer <markster@digium.com>
  24  */
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <sys/time.h>
  30 #include <signal.h>
  31 #include <errno.h>
  32 #include <unistd.h>
  33 #include <dirent.h>
  34 #include <sys/types.h>
  35 #include <sys/stat.h>
  36 #include <regex.h>
  37
  38 #include "asterisk.h"
  39
  40 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  41
  42 #include "asterisk/channel.h"
  43 #include "asterisk/pbx.h"
  44 #include "asterisk/file.h"
  45 #include "asterisk/app.h"
  46 #include "asterisk/dsp.h"
  47 #include "asterisk/logger.h"
  48 #include "asterisk/options.h"
  49 #include "asterisk/utils.h"
  50 #include "asterisk/lock.h"
  51 #include "asterisk/indications.h"
  52
  53 #define MAX_OTHER_FORMATS 10
  54
  55
  56 /* !
  57 This function presents a dialtone and reads an extension into 'collect'
  58 which must be a pointer to a **pre-initialized** array of char having a
  59 size of 'size' suitable for writing to.  It will collect no more than the smaller
  60 of 'maxlen' or 'size' minus the original strlen() of collect digits.
  61 \return 0 if extension does not exist, 1 if extension exists
  62 */
  63 int ast_app_dtget(struct ast_channel *chan, const char *context, char *collect, size_t size, int maxlen, int timeout)
  64 {
  65         struct tone_zone_sound *ts;
  66         int res=0, x=0;
  67
  68         if(maxlen > size)
  69                 maxlen = size;
  70
  71         if(!timeout && chan->pbx)
  72                 timeout = chan->pbx->dtimeout;
  73         else if(!timeout)
  74                 timeout = 5;
  75
  76         ts = ast_get_indication_tone(chan->zone,"dial");
  77         if (ts && ts->data[0])
  78                 res = ast_playtones_start(chan, 0, ts->data, 0);
  79         else
  80                 ast_log(LOG_NOTICE,"Huh....? no dial for indications?\n");
  81
  82         for (x = strlen(collect); x < maxlen; ) {
  83                 res = ast_waitfordigit(chan, timeout);
  84                 if (!ast_ignore_pattern(context, collect))
  85                         ast_playtones_stop(chan);
  86                 if (res < 1)
  87                         break;
  88                 collect[x++] = res;
  89                 if (!ast_matchmore_extension(chan, context, collect, 1, chan->cid.cid_num)) {
  90                         if (collect[x-1] == '#') {
  91                                 /* Not a valid extension, ending in #, assume the # was to finish dialing */
  92                                 collect[x-1] = '\0';
  93                         }
  94                         break;
  95                 }
  96         }
  97         if (res >= 0)
  98                 res = ast_exists_extension(chan, context, collect, 1, chan->cid.cid_num) ? 1 : 0;
  99         return res;
 100 }
 101
 102
 103
 104 /*! \param timeout set timeout to 0 for "standard" timeouts. Set timeout to -1 for
 105    "ludicrous time" (essentially never times out) */
 106 int ast_app_getdata(struct ast_channel *c, char *prompt, char *s, int maxlen, int timeout)
 107 {
 108         int res,to,fto;
 109         /* XXX Merge with full version? XXX */
 110         if (maxlen)
 111                 s[0] = '\0';
 112         if (prompt) {
 113                 res = ast_streamfile(c, prompt, c->language);
 114                 if (res < 0)
 115                         return res;
 116         }
 117         fto = c->pbx ? c->pbx->rtimeout * 1000 : 6000;
 118         to = c->pbx ? c->pbx->dtimeout * 1000 : 2000;
 119
 120         if (timeout > 0)
 121                 fto = to = timeout;
 122         if (timeout < 0)
 123                 fto = to = 1000000000;
 124         res = ast_readstring(c, s, maxlen, to, fto, "#");
 125         return res;
 126 }
 127
 128
 129 int ast_app_getdata_full(struct ast_channel *c, char *prompt, char *s, int maxlen, int timeout, int audiofd, int ctrlfd)
 130 {
 131         int res,to,fto;
 132         if (prompt) {
 133                 res = ast_streamfile(c, prompt, c->language);
 134                 if (res < 0)
 135                         return res;
 136         }
 137         fto = 6000;
 138         to = 2000;
 139         if (timeout > 0)
 140                 fto = to = timeout;
 141         if (timeout < 0)
 142                 fto = to = 1000000000;
 143         res = ast_readstring_full(c, s, maxlen, to, fto, "#", audiofd, ctrlfd);
 144         return res;
 145 }
 146
 147 int ast_app_getvoice(struct ast_channel *c, char *dest, char *dstfmt, char *prompt, int silence, int maxsec)
 148 {
 149         int res;
 150         struct ast_filestream *writer;
 151         int rfmt;
 152         int totalms=0, total;
 153
 154         struct ast_frame *f;
 155         struct ast_dsp *sildet;
 156         /* Play prompt if requested */
 157         if (prompt) {
 158                 res = ast_stream_and_wait(c, prompt, c->language, "");
 159                 if (res < 0)
 160                         return res;
 161         }
 162         rfmt = c->readformat;
 163         res = ast_set_read_format(c, AST_FORMAT_SLINEAR);
 164         if (res < 0) {
 165                 ast_log(LOG_WARNING, "Unable to set to linear mode, giving up\n");
 166                 return -1;
 167         }
 168         sildet = ast_dsp_new();
 169         if (!sildet) {
 170                 ast_log(LOG_WARNING, "Unable to create silence detector :(\n");
 171                 return -1;
 172         }
 173         writer = ast_writefile(dest, dstfmt, "Voice file", 0, 0, 0666);
 174         if (!writer) {
 175                 ast_log(LOG_WARNING, "Unable to open file '%s' in format '%s' for writing\n", dest, dstfmt);
 176                 ast_dsp_free(sildet);
 177                 return -1;
 178         }
 179         for(;;) {
 180                 if ((res = ast_waitfor(c, 2000)) < 0) {
 181                         ast_log(LOG_NOTICE, "Waitfor failed while recording file '%s' format '%s'\n", dest, dstfmt);
 182                         break;
 183                 }
 184                 if (res) {
 185                         f = ast_read(c);
 186                         if (!f) {
 187                                 ast_log(LOG_NOTICE, "Hungup while recording file '%s' format '%s'\n", dest, dstfmt);
 188                                 break;
 189                         }
 190                         if ((f->frametype == AST_FRAME_DTMF) && (f->subclass == '#')) {
 191                                 /* Ended happily with DTMF */
 192                                 ast_frfree(f);
 193                                 break;
 194                         } else if (f->frametype == AST_FRAME_VOICE) {
 195                                 ast_dsp_silence(sildet, f, &total);
 196                                 if (total > silence) {
 197                                         /* Ended happily with silence */
 198                                         ast_frfree(f);
 199                                         break;
 200                                 }
 201                                 totalms += f->samples / 8;
 202                                 if (totalms > maxsec * 1000) {
 203                                         /* Ended happily with too much stuff */
 204                                         ast_log(LOG_NOTICE, "Constraining voice on '%s' to %d seconds\n", c->name, maxsec);
 205                                         ast_frfree(f);
 206                                         break;
 207                                 }
 208                                 res = ast_writestream(writer, f);
 209                                 if (res < 0) {
 210                                         ast_log(LOG_WARNING, "Failed to write to stream at %s!\n", dest);
 211                                         ast_frfree(f);
 212                                         break;
 213                                 }
 214
 215                         }
 216                         ast_frfree(f);
 217                 }
 218         }
 219         res = ast_set_read_format(c, rfmt);
 220         if (res)
 221                 ast_log(LOG_WARNING, "Unable to restore read format on '%s'\n", c->name);
 222         ast_dsp_free(sildet);
 223         ast_closestream(writer);
 224         return 0;
 225 }
 226
 227 static int (*ast_has_voicemail_func)(const char *mailbox, const char *folder) = NULL;
 228 static int (*ast_messagecount_func)(const char *mailbox, int *newmsgs, int *oldmsgs) = NULL;
 229
 230 void ast_install_vm_functions(int (*has_voicemail_func)(const char *mailbox, const char *folder),
 231                               int (*messagecount_func)(const char *mailbox, int *newmsgs, int *oldmsgs))
 232 {
 233         ast_has_voicemail_func = has_voicemail_func;
 234         ast_messagecount_func = messagecount_func;
 235 }
 236
 237 void ast_uninstall_vm_functions(void)
 238 {
 239         ast_has_voicemail_func = NULL;
 240         ast_messagecount_func = NULL;
 241 }
 242
 243 int ast_app_has_voicemail(const char *mailbox, const char *folder)
 244 {
 245         static int warned = 0;
 246         if (ast_has_voicemail_func)
 247                 return ast_has_voicemail_func(mailbox, folder);
 248
 249         if ((option_verbose > 2) && !warned) {
 250                 ast_verbose(VERBOSE_PREFIX_3 "Message check requested for mailbox %s/folder %s but voicemail not loaded.\n", mailbox, folder ? folder : "INBOX");
 251                 warned++;
 252         }
 253         return 0;
 254 }
 255
 256
 257 int ast_app_messagecount(const char *mailbox, int *newmsgs, int *oldmsgs)
 258 {
 259         static int warned = 0;
 260         if (newmsgs)
 261                 *newmsgs = 0;
 262         if (oldmsgs)
 263                 *oldmsgs = 0;
 264         if (ast_messagecount_func)
 265                 return ast_messagecount_func(mailbox, newmsgs, oldmsgs);
 266
 267         if (!warned && (option_verbose > 2)) {
 268                 warned++;
 269                 ast_verbose(VERBOSE_PREFIX_3 "Message count requested for mailbox %s but voicemail not loaded.\n", mailbox);
 270         }
 271
 272         return 0;
 273 }
 274
 275 int ast_dtmf_stream(struct ast_channel *chan, struct ast_channel *peer, const char *digits, int between)
 276 {
 277         const char *ptr;
 278         int res = 0;
 279         struct ast_frame f = {
 280                 .frametype = AST_FRAME_DTMF,
 281                 .src = "ast_dtmf_stream"
 282         };
 283
 284         if (!between)
 285                 between = 100;
 286
 287         if (peer)
 288                 res = ast_autoservice_start(peer);
 289
 290         if (!res)
 291                 res = ast_waitfor(chan, 100);
 292
 293         /* ast_waitfor will return the number of remaining ms on success */
 294         if (res < 0)
 295                 return res;
 296
 297         for (ptr = digits; *ptr; ptr++) {
 298                 if (*ptr == 'w') {
 299                         /* 'w' -- wait half a second */
 300                         if ((res = ast_safe_sleep(chan, 500)))
 301                                 break;
 302                 } else if (strchr("0123456789*#abcdfABCDF", *ptr)) {
 303                         /* Character represents valid DTMF */
 304                         if (*ptr == 'f' || *ptr == 'F') {
 305                                 /* ignore return values if not supported by channel */
 306                                 ast_indicate(chan, AST_CONTROL_FLASH);
 307                         } else {
 308                                 f.subclass = *ptr;
 309                                 if ((res = ast_write(chan, &f)))
 310                                         break;
 311                         }
 312                         /* pause between digits */
 313                         if ((res = ast_safe_sleep(chan, between)))
 314                                 break;
 315                 } else
 316                         ast_log(LOG_WARNING, "Illegal DTMF character '%c' in string. (0-9*#aAbBcCdD allowed)\n",*ptr);
 317         }
 318
 319         if (peer) {
 320                 /* Stop autoservice on the peer channel, but don't overwrite any error condition
 321                    that has occurred previously while acting on the primary channel */
 322                 if (ast_autoservice_stop(peer) && !res)
 323                         res = -1;
 324         }
 325
 326         return res;
 327 }
 328
 329 struct linear_state {
 330         int fd;
 331         int autoclose;
 332         int allowoverride;
 333         int origwfmt;
 334 };
 335
 336 static void linear_release(struct ast_channel *chan, void *params)
 337 {
 338         struct linear_state *ls = params;
 339         if (ls->origwfmt && ast_set_write_format(chan, ls->origwfmt)) {
 340                 ast_log(LOG_WARNING, "Unable to restore channel '%s' to format '%d'\n", chan->name, ls->origwfmt);
 341         }
 342         if (ls->autoclose)
 343                 close(ls->fd);
 344         free(params);
 345 }
 346
 347 static int linear_generator(struct ast_channel *chan, void *data, int len, int samples)
 348 {
 349         struct ast_frame f;
 350         short buf[2048 + AST_FRIENDLY_OFFSET / 2];
 351         struct linear_state *ls = data;
 352         int res;
 353         len = samples * 2;
 354         if (len > sizeof(buf) - AST_FRIENDLY_OFFSET) {
 355                 ast_log(LOG_WARNING, "Can't generate %d bytes of data!\n" ,len);
 356                 len = sizeof(buf) - AST_FRIENDLY_OFFSET;
 357         }
 358         memset(&f, 0, sizeof(f));
 359         res = read(ls->fd, buf + AST_FRIENDLY_OFFSET/2, len);
 360         if (res > 0) {
 361                 f.frametype = AST_FRAME_VOICE;
 362                 f.subclass = AST_FORMAT_SLINEAR;
 363                 f.data = buf + AST_FRIENDLY_OFFSET/2;
 364                 f.datalen = res;
 365                 f.samples = res / 2;
 366                 f.offset = AST_FRIENDLY_OFFSET;
 367                 ast_write(chan, &f);
 368                 if (res == len)
 369                         return 0;
 370         }
 371         return -1;
 372 }
 373
 374 static void *linear_alloc(struct ast_channel *chan, void *params)
 375 {
 376         struct linear_state *ls;
 377         /* In this case, params is already malloc'd */
 378         if (params) {
 379                 ls = params;
 380                 if (ls->allowoverride)
 381                         ast_set_flag(chan, AST_FLAG_WRITE_INT);
 382                 else
 383                         ast_clear_flag(chan, AST_FLAG_WRITE_INT);
 384                 ls->origwfmt = chan->writeformat;
 385                 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR)) {
 386                         ast_log(LOG_WARNING, "Unable to set '%s' to linear format (write)\n", chan->name);
 387                         free(ls);
 388                         ls = params = NULL;
 389                 }
 390         }
 391         return params;
 392 }
 393
 394 static struct ast_generator linearstream =
 395 {
 396         alloc: linear_alloc,
 397         release: linear_release,
 398         generate: linear_generator,
 399 };
 400
 401 int ast_linear_stream(struct ast_channel *chan, const char *filename, int fd, int allowoverride)
 402 {
 403         struct linear_state *lin;
 404         char tmpf[256];
 405         int res = -1;
 406         int autoclose = 0;
 407         if (fd < 0) {
 408                 if (ast_strlen_zero(filename))
 409                         return -1;
 410                 autoclose = 1;
 411                 if (filename[0] == '/')
 412                         ast_copy_string(tmpf, filename, sizeof(tmpf));
 413                 else
 414                         snprintf(tmpf, sizeof(tmpf), "%s/%s/%s", (char *)ast_config_AST_DATA_DIR, "sounds", filename);
 415                 fd = open(tmpf, O_RDONLY);
 416                 if (fd < 0){
 417                         ast_log(LOG_WARNING, "Unable to open file '%s': %s\n", tmpf, strerror(errno));
 418                         return -1;
 419                 }
 420         }
 421         if ((lin = ast_calloc(1, sizeof(*lin)))) {
 422                 lin->fd = fd;
 423                 lin->allowoverride = allowoverride;
 424                 lin->autoclose = autoclose;
 425                 res = ast_activate_generator(chan, &linearstream, lin);
 426         }
 427         return res;
 428 }
 429
 430 int ast_control_streamfile(struct ast_channel *chan, const char *file,
 431                            const char *fwd, const char *rev,
 432                            const char *stop, const char *pause,
 433                            const char *restart, int skipms)
 434 {
 435         char *breaks = NULL;
 436         char *end = NULL;
 437         int blen = 2;
 438         int res;
 439         long pause_restart_point = 0;
 440
 441         if (stop)
 442                 blen += strlen(stop);
 443         if (pause)
 444                 blen += strlen(pause);
 445         if (restart)
 446                 blen += strlen(restart);
 447
 448         if (blen > 2) {
 449                 breaks = alloca(blen + 1);
 450                 breaks[0] = '\0';
 451                 if (stop)
 452                         strcat(breaks, stop);
 453                 if (pause)
 454                         strcat(breaks, pause);
 455                 if (restart)
 456                         strcat(breaks, restart);
 457         }
 458         if (chan->_state != AST_STATE_UP)
 459                 res = ast_answer(chan);
 460
 461         if (file) {
 462                 if ((end = strchr(file,':'))) {
 463                         if (!strcasecmp(end, ":end")) {
 464                                 *end = '\0';
 465                                 end++;
 466                         }
 467                 }
 468         }
 469
 470         for (;;) {
 471                 ast_stopstream(chan);
 472                 res = ast_streamfile(chan, file, chan->language);
 473                 if (!res) {
 474                         if (pause_restart_point) {
 475                                 ast_seekstream(chan->stream, pause_restart_point, SEEK_SET);
 476                                 pause_restart_point = 0;
 477                         }
 478                         else if (end) {
 479                                 ast_seekstream(chan->stream, 0, SEEK_END);
 480                                 end = NULL;
 481                         };
 482                         res = ast_waitstream_fr(chan, breaks, fwd, rev, skipms);
 483                 }
 484
 485                 if (res < 1)
 486                         break;
 487
 488                 /* We go at next loop if we got the restart char */
 489                 if (restart && strchr(restart, res)) {
 490                         ast_log(LOG_DEBUG, "we'll restart the stream here at next loop\n");
 491                         pause_restart_point = 0;
 492                         continue;
 493                 }
 494
 495                 if (pause && strchr(pause, res)) {
 496                         pause_restart_point = ast_tellstream(chan->stream);
 497                         for (;;) {
 498                                 ast_stopstream(chan);
 499                                 res = ast_waitfordigit(chan, 1000);
 500                                 if (!res)
 501                                         continue;
 502                                 else if (res == -1 || strchr(pause, res) || (stop && strchr(stop, res)))
 503                                         break;
 504                         }
 505                         if (res == *pause) {
 506                                 res = 0;
 507                                 continue;
 508                         }
 509                 }
 510
 511                 if (res == -1)
 512                         break;
 513
 514                 /* if we get one of our stop chars, return it to the calling function */
 515                 if (stop && strchr(stop, res))
 516                         break;
 517         }
 518
 519         ast_stopstream(chan);
 520
 521         return res;
 522 }
 523
 524 int ast_play_and_wait(struct ast_channel *chan, const char *fn)
 525 {
 526         int d;
 527         d = ast_streamfile(chan, fn, chan->language);
 528         if (d)
 529                 return d;
 530         d = ast_waitstream(chan, AST_DIGIT_ANY);
 531         ast_stopstream(chan);
 532         return d;
 533 }
 534
 535 static int global_silence_threshold = 128;
 536 static int global_maxsilence = 0;
 537
 538 int ast_play_and_record(struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime, const char *fmt, int *duration, int silencethreshold, int maxsilence, const char *path)
 539 {
 540         int d;
 541         char *fmts;
 542         char comment[256];
 543         int x, fmtcnt=1, res=-1,outmsg=0;
 544         struct ast_frame *f;
 545         struct ast_filestream *others[MAX_OTHER_FORMATS];
 546         char *sfmt[MAX_OTHER_FORMATS];
 547         char *stringp=NULL;
 548         time_t start, end;
 549         struct ast_dsp *sildet=NULL;    /* silence detector dsp */
 550         int totalsilence = 0;
 551         int dspsilence = 0;
 552         int rfmt=0;
 553         struct ast_silence_generator *silgen = NULL;
 554
 555         if (silencethreshold < 0)
 556                 silencethreshold = global_silence_threshold;
 557
 558         if (maxsilence < 0)
 559                 maxsilence = global_maxsilence;
 560
 561         /* barf if no pointer passed to store duration in */
 562         if (duration == NULL) {
 563                 ast_log(LOG_WARNING, "Error play_and_record called without duration pointer\n");
 564                 return -1;
 565         }
 566
 567         ast_log(LOG_DEBUG,"play_and_record: %s, %s, '%s'\n", playfile ? playfile : "<None>", recordfile, fmt);
 568         snprintf(comment,sizeof(comment),"Playing %s, Recording to: %s on %s\n", playfile ? playfile : "<None>", recordfile, chan->name);
 569
 570         if (playfile) {
 571                 d = ast_play_and_wait(chan, playfile);
 572                 if (d > -1)
 573                         d = ast_stream_and_wait(chan, "beep", chan->language, "");
 574                 if (d < 0)
 575                         return -1;
 576         }
 577
 578         fmts = ast_strdupa(fmt);
 579
 580         stringp=fmts;
 581         strsep(&stringp, "|");
 582         ast_log(LOG_DEBUG,"Recording Formats: sfmts=%s\n", fmts);
 583         sfmt[0] = ast_strdupa(fmts);
 584
 585         while((fmt = strsep(&stringp, "|"))) {
 586                 if (fmtcnt > MAX_OTHER_FORMATS - 1) {
 587                         ast_log(LOG_WARNING, "Please increase MAX_OTHER_FORMATS in app.c\n");
 588                         break;
 589                 }
 590                 sfmt[fmtcnt++] = ast_strdupa(fmt);
 591         }
 592
 593         time(&start);
 594         end=start;  /* pre-initialize end to be same as start in case we never get into loop */
 595         for (x=0;x<fmtcnt;x++) {
 596                 others[x] = ast_writefile(recordfile, sfmt[x], comment, O_TRUNC, 0, 0700);
 597                 ast_verbose( VERBOSE_PREFIX_3 "x=%d, open writing:  %s format: %s, %p\n", x, recordfile, sfmt[x], others[x]);
 598
 599                 if (!others[x]) {
 600                         break;
 601                 }
 602         }
 603
 604         if (path)
 605                 ast_unlock_path(path);
 606
 607         if (maxsilence > 0) {
 608                 sildet = ast_dsp_new(); /* Create the silence detector */
 609                 if (!sildet) {
 610                         ast_log(LOG_WARNING, "Unable to create silence detector :(\n");
 611                         return -1;
 612                 }
 613                 ast_dsp_set_threshold(sildet, silencethreshold);
 614                 rfmt = chan->readformat;
 615                 res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
 616                 if (res < 0) {
 617                         ast_log(LOG_WARNING, "Unable to set to linear mode, giving up\n");
 618                         ast_dsp_free(sildet);
 619                         return -1;
 620                 }
 621         }
 622
 623         /* Request a video update */
 624         ast_indicate(chan, AST_CONTROL_VIDUPDATE);
 625
 626         if (ast_opt_transmit_silence)
 627                 silgen = ast_channel_start_silence_generator(chan);
 628
 629         if (x == fmtcnt) {
 630         /* Loop forever, writing the packets we read to the writer(s), until
 631            we read a # or get a hangup */
 632                 f = NULL;
 633                 for(;;) {
 634                         res = ast_waitfor(chan, 2000);
 635                         if (!res) {
 636                                 ast_log(LOG_DEBUG, "One waitfor failed, trying another\n");
 637                                 /* Try one more time in case of masq */
 638                                 res = ast_waitfor(chan, 2000);
 639                                 if (!res) {
 640                                         ast_log(LOG_WARNING, "No audio available on %s??\n", chan->name);
 641                                         res = -1;
 642                                 }
 643                         }
 644
 645                         if (res < 0) {
 646                                 f = NULL;
 647                                 break;
 648                         }
 649                         f = ast_read(chan);
 650                         if (!f)
 651                                 break;
 652                         if (f->frametype == AST_FRAME_VOICE) {
 653                                 /* write each format */
 654                                 for (x=0;x<fmtcnt;x++) {
 655                                         res = ast_writestream(others[x], f);
 656                                 }
 657
 658                                 /* Silence Detection */
 659                                 if (maxsilence > 0) {
 660                                         dspsilence = 0;
 661                                         ast_dsp_silence(sildet, f, &dspsilence);
 662                                         if (dspsilence)
 663                                                 totalsilence = dspsilence;
 664                                         else
 665                                                 totalsilence = 0;
 666
 667                                         if (totalsilence > maxsilence) {
 668                                                 /* Ended happily with silence */
 669                                                 if (option_verbose > 2)
 670                                                         ast_verbose( VERBOSE_PREFIX_3 "Recording automatically stopped after a silence of %d seconds\n", totalsilence/1000);
 671                                                 ast_frfree(f);
 672                                                 res = 'S';
 673                                                 outmsg=2;
 674                                                 break;
 675                                         }
 676                                 }
 677                                 /* Exit on any error */
 678                                 if (res) {
 679                                         ast_log(LOG_WARNING, "Error writing frame\n");
 680                                         ast_frfree(f);
 681                                         break;
 682                                 }
 683                         } else if (f->frametype == AST_FRAME_VIDEO) {
 684                                 /* Write only once */
 685                                 ast_writestream(others[0], f);
 686                         } else if (f->frametype == AST_FRAME_DTMF) {
 687                                 if (f->subclass == '#') {
 688                                         if (option_verbose > 2)
 689                                                 ast_verbose( VERBOSE_PREFIX_3 "User ended message by pressing %c\n", f->subclass);
 690                                         res = '#';
 691                                         outmsg = 2;
 692                                         ast_frfree(f);
 693                                         break;
 694                                 }
 695                                 if (f->subclass == '0') {
 696                                 /* Check for a '0' during message recording also, in case caller wants operator */
 697                                         if (option_verbose > 2)
 698                                                 ast_verbose(VERBOSE_PREFIX_3 "User cancelled by pressing %c\n", f->subclass);
 699                                         res = '0';
 700                                         outmsg = 0;
 701                                         ast_frfree(f);
 702                                         break;
 703                                 }
 704                         }
 705                         if (maxtime) {
 706                                 time(&end);
 707                                 if (maxtime < (end - start)) {
 708                                         if (option_verbose > 2)
 709                                                 ast_verbose( VERBOSE_PREFIX_3 "Took too long, cutting it short...\n");
 710                                         outmsg = 2;
 711                                         res = 't';
 712                                         ast_frfree(f);
 713                                         break;
 714                                 }
 715                         }
 716                         ast_frfree(f);
 717                 }
 718                 if (end == start) time(&end);
 719                 if (!f) {
 720                         if (option_verbose > 2)
 721                                 ast_verbose( VERBOSE_PREFIX_3 "User hung up\n");
 722                         res = -1;
 723                         outmsg=1;
 724                 }
 725         } else {
 726                 ast_log(LOG_WARNING, "Error creating writestream '%s', format '%s'\n", recordfile, sfmt[x]);
 727         }
 728
 729         if (silgen)
 730                 ast_channel_stop_silence_generator(chan, silgen);
 731
 732         *duration = end - start;
 733
 734         for (x=0;x<fmtcnt;x++) {
 735                 if (!others[x])
 736                         break;
 737                 if (res > 0)
 738                         ast_stream_rewind(others[x], totalsilence ? totalsilence-200 : 200);
 739                 ast_truncstream(others[x]);
 740                 ast_closestream(others[x]);
 741         }
 742         if (rfmt && ast_set_read_format(chan, rfmt)) {
 743                 ast_log(LOG_WARNING, "Unable to restore format %s to channel '%s'\n", ast_getformatname(rfmt), chan->name);
 744         }
 745         if (outmsg > 1) {
 746                 /* Let them know recording is stopped */
 747                 ast_stream_and_wait(chan, "auth-thankyou", chan->language, "");
 748         }
 749         if (sildet)
 750                 ast_dsp_free(sildet);
 751         return res;
 752 }
 753
 754 int ast_play_and_prepend(struct ast_channel *chan, char *playfile, char *recordfile, int maxtime, char *fmt, int *duration, int beep, int silencethreshold, int maxsilence)
 755 {
 756         int d = 0;
 757         char *fmts;
 758         char comment[256];
 759         int x, fmtcnt=1, res=-1,outmsg=0;
 760         struct ast_frame *f;
 761         struct ast_filestream *others[MAX_OTHER_FORMATS];
 762         struct ast_filestream *realfiles[MAX_OTHER_FORMATS];
 763         char *sfmt[MAX_OTHER_FORMATS];
 764         char *stringp=NULL;
 765         time_t start, end;
 766         struct ast_dsp *sildet;         /* silence detector dsp */
 767         int totalsilence = 0;
 768         int dspsilence = 0;
 769         int rfmt=0;
 770         char prependfile[80];
 771
 772         if (silencethreshold < 0)
 773                 silencethreshold = global_silence_threshold;
 774
 775         if (maxsilence < 0)
 776                 maxsilence = global_maxsilence;
 777
 778         /* barf if no pointer passed to store duration in */
 779         if (duration == NULL) {
 780                 ast_log(LOG_WARNING, "Error play_and_prepend called without duration pointer\n");
 781                 return -1;
 782         }
 783
 784         ast_log(LOG_DEBUG,"play_and_prepend: %s, %s, '%s'\n", playfile ? playfile : "<None>", recordfile, fmt);
 785         snprintf(comment,sizeof(comment),"Playing %s, Recording to: %s on %s\n", playfile ? playfile : "<None>", recordfile, chan->name);
 786
 787         if (playfile || beep) {
 788                 if (!beep)
 789                         d = ast_play_and_wait(chan, playfile);
 790                 if (d > -1)
 791                         d = ast_stream_and_wait(chan, "beep",chan->language, "");
 792                 if (d < 0)
 793                         return -1;
 794         }
 795         ast_copy_string(prependfile, recordfile, sizeof(prependfile));
 796         strncat(prependfile, "-prepend", sizeof(prependfile) - strlen(prependfile) - 1);
 797
 798         fmts = ast_strdupa(fmt);
 799
 800         stringp=fmts;
 801         strsep(&stringp, "|");
 802         ast_log(LOG_DEBUG,"Recording Formats: sfmts=%s\n", fmts);
 803         sfmt[0] = ast_strdupa(fmts);
 804
 805         while((fmt = strsep(&stringp, "|"))) {
 806                 if (fmtcnt > MAX_OTHER_FORMATS - 1) {
 807                         ast_log(LOG_WARNING, "Please increase MAX_OTHER_FORMATS in app.c\n");
 808                         break;
 809                 }
 810                 sfmt[fmtcnt++] = ast_strdupa(fmt);
 811         }
 812
 813         time(&start);
 814         end=start;  /* pre-initialize end to be same as start in case we never get into loop */
 815         for (x=0;x<fmtcnt;x++) {
 816                 others[x] = ast_writefile(prependfile, sfmt[x], comment, O_TRUNC, 0, 0700);
 817                 ast_verbose( VERBOSE_PREFIX_3 "x=%d, open writing:  %s format: %s, %p\n", x, prependfile, sfmt[x], others[x]);
 818                 if (!others[x]) {
 819                         break;
 820                 }
 821         }
 822
 823         sildet = ast_dsp_new(); /* Create the silence detector */
 824         if (!sildet) {
 825                 ast_log(LOG_WARNING, "Unable to create silence detector :(\n");
 826                 return -1;
 827         }
 828         ast_dsp_set_threshold(sildet, silencethreshold);
 829
 830         if (maxsilence > 0) {
 831                 rfmt = chan->readformat;
 832                 res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
 833                 if (res < 0) {
 834                         ast_log(LOG_WARNING, "Unable to set to linear mode, giving up\n");
 835                         ast_dsp_free(sildet);
 836                         return -1;
 837                 }
 838         }
 839
 840         if (x == fmtcnt) {
 841         /* Loop forever, writing the packets we read to the writer(s), until
 842            we read a # or get a hangup */
 843                 f = NULL;
 844                 for(;;) {
 845                         res = ast_waitfor(chan, 2000);
 846                         if (!res) {
 847                                 ast_log(LOG_DEBUG, "One waitfor failed, trying another\n");
 848                                 /* Try one more time in case of masq */
 849                                 res = ast_waitfor(chan, 2000);
 850                                 if (!res) {
 851                                         ast_log(LOG_WARNING, "No audio available on %s??\n", chan->name);
 852                                         res = -1;
 853                                 }
 854                         }
 855
 856                         if (res < 0) {
 857                                 f = NULL;
 858                                 break;
 859                         }
 860                         f = ast_read(chan);
 861                         if (!f)
 862                                 break;
 863                         if (f->frametype == AST_FRAME_VOICE) {
 864                                 /* write each format */
 865                                 for (x=0;x<fmtcnt;x++) {
 866                                         if (!others[x])
 867                                                 break;
 868                                         res = ast_writestream(others[x], f);
 869                                 }
 870
 871                                 /* Silence Detection */
 872                                 if (maxsilence > 0) {
 873                                         dspsilence = 0;
 874                                         ast_dsp_silence(sildet, f, &dspsilence);
 875                                         if (dspsilence)
 876                                                 totalsilence = dspsilence;
 877                                         else
 878                                                 totalsilence = 0;
 879
 880                                         if (totalsilence > maxsilence) {
 881                                         /* Ended happily with silence */
 882                                         if (option_verbose > 2)
 883                                                 ast_verbose( VERBOSE_PREFIX_3 "Recording automatically stopped after a silence of %d seconds\n", totalsilence/1000);
 884                                         ast_frfree(f);
 885                                         res = 'S';
 886                                         outmsg=2;
 887                                         break;
 888                                         }
 889                                 }
 890                                 /* Exit on any error */
 891                                 if (res) {
 892                                         ast_log(LOG_WARNING, "Error writing frame\n");
 893                                         ast_frfree(f);
 894                                         break;
 895                                 }
 896                         } else if (f->frametype == AST_FRAME_VIDEO) {
 897                                 /* Write only once */
 898                                 ast_writestream(others[0], f);
 899                         } else if (f->frametype == AST_FRAME_DTMF) {
 900                                 /* stop recording with any digit */
 901                                 if (option_verbose > 2)
 902                                         ast_verbose( VERBOSE_PREFIX_3 "User ended message by pressing %c\n", f->subclass);
 903                                 res = 't';
 904                                 outmsg = 2;
 905                                 ast_frfree(f);
 906                                 break;
 907                         }
 908                         if (maxtime) {
 909                                 time(&end);
 910                                 if (maxtime < (end - start)) {
 911                                         if (option_verbose > 2)
 912                                                 ast_verbose( VERBOSE_PREFIX_3 "Took too long, cutting it short...\n");
 913                                         res = 't';
 914                                         outmsg=2;
 915                                         ast_frfree(f);
 916                                         break;
 917                                 }
 918                         }
 919                         ast_frfree(f);
 920                 }
 921                 if (end == start) time(&end);
 922                 if (!f) {
 923                         if (option_verbose > 2)
 924                                 ast_verbose( VERBOSE_PREFIX_3 "User hung up\n");
 925                         res = -1;
 926                         outmsg=1;
 927 #if 0
 928                         /* delete all the prepend files */
 929                         for (x=0;x<fmtcnt;x++) {
 930                                 if (!others[x])
 931                                         break;
 932                                 ast_closestream(others[x]);
 933                                 ast_filedelete(prependfile, sfmt[x]);
 934                         }
 935 #endif
 936                 }
 937         } else {
 938                 ast_log(LOG_WARNING, "Error creating writestream '%s', format '%s'\n", prependfile, sfmt[x]);
 939         }
 940         ast_dsp_free(sildet);
 941         *duration = end - start;
 942 #if 0
 943         if (outmsg > 1) {
 944 #else
 945         if (outmsg) {
 946 #endif
 947                 struct ast_frame *fr;
 948                 for (x=0;x<fmtcnt;x++) {
 949                         snprintf(comment, sizeof(comment), "Opening the real file %s.%s\n", recordfile, sfmt[x]);
 950                         realfiles[x] = ast_readfile(recordfile, sfmt[x], comment, O_RDONLY, 0, 0);
 951                         if (!others[x] || !realfiles[x])
 952                                 break;
 953                         if (totalsilence)
 954                                 ast_stream_rewind(others[x], totalsilence-200);
 955                         else
 956                                 ast_stream_rewind(others[x], 200);
 957                         ast_truncstream(others[x]);
 958                         /* add the original file too */
 959                         while ((fr = ast_readframe(realfiles[x]))) {
 960                                 ast_writestream(others[x],fr);
 961                         }
 962                         ast_closestream(others[x]);
 963                         ast_closestream(realfiles[x]);
 964                         ast_filerename(prependfile, recordfile, sfmt[x]);
 965 #if 0
 966                         ast_verbose("Recording Format: sfmts=%s, prependfile %s, recordfile %s\n", sfmt[x],prependfile,recordfile);
 967 #endif
 968                         ast_filedelete(prependfile, sfmt[x]);
 969                 }
 970         }
 971         if (rfmt && ast_set_read_format(chan, rfmt)) {
 972                 ast_log(LOG_WARNING, "Unable to restore format %s to channel '%s'\n", ast_getformatname(rfmt), chan->name);
 973         }
 974         if (outmsg > 1) {
 975                 /* Let them know it worked */
 976                 ast_stream_and_wait(chan, "auth-thankyou", chan->language, "");
 977         }
 978         return res;
 979 }
 980
 981 /* Channel group core functions */
 982
 983 int ast_app_group_split_group(const char *data, char *group, int group_max, char *category, int category_max)
 984 {
 985         int res=0;
 986         char tmp[256];
 987         char *grp=NULL, *cat=NULL;
 988
 989         if (!ast_strlen_zero(data)) {
 990                 ast_copy_string(tmp, data, sizeof(tmp));
 991                 grp = tmp;
 992                 cat = strchr(tmp, '@');
 993                 if (cat) {
 994                         *cat = '\0';
 995                         cat++;
 996                 }
 997         }
 998
 999         if (!ast_strlen_zero(grp))
1000                 ast_copy_string(group, grp, group_max);
1001         else
1002                 res = -1;
1003
1004         if (cat)
1005                 snprintf(category, category_max, "%s_%s", GROUP_CATEGORY_PREFIX, cat);
1006         else
1007                 ast_copy_string(category, GROUP_CATEGORY_PREFIX, category_max);
1008
1009         return res;
1010 }
1011
1012 int ast_app_group_set_channel(struct ast_channel *chan, const char *data)
1013 {
1014         int res=0;
1015         char group[80] = "";
1016         char category[80] = "";
1017
1018         if (!ast_app_group_split_group(data, group, sizeof(group), category, sizeof(category))) {
1019                 pbx_builtin_setvar_helper(chan, category, group);
1020         } else
1021                 res = -1;
1022
1023         return res;
1024 }
1025
1026 int ast_app_group_get_count(const char *group, const char *category)
1027 {
1028         struct ast_channel *chan;
1029         int count = 0;
1030         const char *test;
1031         char cat[80];
1032         const char *s;
1033
1034         if (ast_strlen_zero(group))
1035                 return 0;
1036
1037         s = S_OR(category, GROUP_CATEGORY_PREFIX);
1038         ast_copy_string(cat, s, sizeof(cat));
1039
1040         chan = NULL;
1041         while ((chan = ast_channel_walk_locked(chan)) != NULL) {
1042                 test = pbx_builtin_getvar_helper(chan, cat);
1043                 if (test && !strcasecmp(test, group))
1044                         count++;
1045                 ast_channel_unlock(chan);
1046         }
1047
1048         return count;
1049 }
1050
1051 int ast_app_group_match_get_count(const char *groupmatch, const char *category)
1052 {
1053         regex_t regexbuf;
1054         struct ast_channel *chan;
1055         int count = 0;
1056         const char *test;
1057         char cat[80];
1058         const char *s;
1059
1060         if (ast_strlen_zero(groupmatch))
1061                 return 0;
1062
1063         /* if regex compilation fails, return zero matches */
1064         if (regcomp(&regexbuf, groupmatch, REG_EXTENDED | REG_NOSUB))
1065                 return 0;
1066
1067         s = S_OR(category, GROUP_CATEGORY_PREFIX);
1068         ast_copy_string(cat, s, sizeof(cat));
1069
1070         chan = NULL;
1071         while ((chan = ast_channel_walk_locked(chan)) != NULL) {
1072                 test = pbx_builtin_getvar_helper(chan, cat);
1073                 if (test && !regexec(&regexbuf, test, 0, NULL, 0))
1074                         count++;
1075                 ast_channel_unlock(chan);
1076         }
1077
1078         regfree(&regexbuf);
1079
1080         return count;
1081 }
1082
1083 unsigned int ast_app_separate_args(char *buf, char delim, char **array, int arraylen)
1084 {
1085         int argc;
1086         char *scan;
1087         int paren = 0, quote = 0;
1088
1089         if (!buf || !array || !arraylen)
1090                 return 0;
1091
1092         memset(array, 0, arraylen * sizeof(*array));
1093
1094         scan = buf;
1095
1096         for (argc = 0; *scan && (argc < arraylen - 1); argc++) {
1097                 array[argc] = scan;
1098                 for (; *scan; scan++) {
1099                         if (*scan == '(')
1100                                 paren++;
1101                         else if (*scan == ')') {
1102                                 if (paren)
1103                                         paren--;
1104                         } else if (*scan == '"') {
1105                                 quote = quote ? 0 : 1;
1106                                 /* Remove quote character from argument */
1107                                 memmove(scan, scan + 1, strlen(scan));
1108                                 scan--;
1109                         } else if (*scan == '\\') {
1110                                 /* Literal character, don't parse */
1111                                 memmove(scan, scan + 1, strlen(scan));
1112                         } else if ((*scan == delim) && !paren && !quote) {
1113                                 *scan++ = '\0';
1114                                 break;
1115                         }
1116                 }
1117         }
1118
1119         if (*scan)
1120                 array[argc++] = scan;
1121
1122         return argc;
1123 }
1124
1125 enum AST_LOCK_RESULT ast_lock_path(const char *path)
1126 {
1127         char *s;
1128         char *fs;
1129         int res;
1130         int fd;
1131         int lp = strlen(path);
1132         time_t start;
1133
1134         if (!(s = alloca(lp + 10)) || !(fs = alloca(lp + 20))) {
1135                 ast_log(LOG_WARNING, "Out of memory!\n");
1136                 return AST_LOCK_FAILURE;
1137         }
1138
1139         snprintf(fs, strlen(path) + 19, "%s/.lock-%08lx", path, ast_random());
1140         fd = open(fs, O_WRONLY | O_CREAT | O_EXCL, 0600);
1141         if (fd < 0) {
1142                 fprintf(stderr, "Unable to create lock file '%s': %s\n", path, strerror(errno));
1143                 return AST_LOCK_PATH_NOT_FOUND;
1144         }
1145         close(fd);
1146
1147         snprintf(s, strlen(path) + 9, "%s/.lock", path);
1148         time(&start);
1149         while (((res = link(fs, s)) < 0) && (errno == EEXIST) && (time(NULL) - start < 5))
1150                 usleep(1);
1151         if (res) {
1152                 ast_log(LOG_WARNING, "Failed to lock path '%s': %s\n", path, strerror(errno));
1153                 return AST_LOCK_TIMEOUT;
1154         } else {
1155                 unlink(fs);
1156                 ast_log(LOG_DEBUG, "Locked path '%s'\n", path);
1157                 return AST_LOCK_SUCCESS;
1158         }
1159 }
1160
1161 int ast_unlock_path(const char *path)
1162 {
1163         char *s;
1164         if (!(s = alloca(strlen(path) + 10)))
1165                 return -1;
1166         snprintf(s, strlen(path) + 9, "%s/%s", path, ".lock");
1167         ast_log(LOG_DEBUG, "Unlocked path '%s'\n", path);
1168         return unlink(s);
1169 }
1170
1171 int ast_record_review(struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime, const char *fmt, int *duration, const char *path)
1172 {
1173         int silencethreshold = 128;
1174         int maxsilence=0;
1175         int res = 0;
1176         int cmd = 0;
1177         int max_attempts = 3;
1178         int attempts = 0;
1179         int recorded = 0;
1180         int message_exists = 0;
1181         /* Note that urgent and private are for flagging messages as such in the future */
1182
1183         /* barf if no pointer passed to store duration in */
1184         if (duration == NULL) {
1185                 ast_log(LOG_WARNING, "Error ast_record_review called without duration pointer\n");
1186                 return -1;
1187         }
1188
1189         cmd = '3';       /* Want to start by recording */
1190
1191         while ((cmd >= 0) && (cmd != 't')) {
1192                 switch (cmd) {
1193                 case '1':
1194                         if (!message_exists) {
1195                                 /* In this case, 1 is to record a message */
1196                                 cmd = '3';
1197                                 break;
1198                         } else {
1199                                 ast_stream_and_wait(chan, "vm-msgsaved", chan->language, "");
1200                                 cmd = 't';
1201                                 return res;
1202                         }
1203                 case '2':
1204                         /* Review */
1205                         ast_verbose(VERBOSE_PREFIX_3 "Reviewing the recording\n");
1206                         cmd = ast_stream_and_wait(chan, recordfile, chan->language, AST_DIGIT_ANY);
1207                         break;
1208                 case '3':
1209                         message_exists = 0;
1210                         /* Record */
1211                         if (recorded == 1)
1212                                 ast_verbose(VERBOSE_PREFIX_3 "Re-recording\n");
1213                         else
1214                                 ast_verbose(VERBOSE_PREFIX_3 "Recording\n");
1215                         recorded = 1;
1216                         cmd = ast_play_and_record(chan, playfile, recordfile, maxtime, fmt, duration, silencethreshold, maxsilence, path);
1217                         if (cmd == -1) {
1218                         /* User has hung up, no options to give */
1219                                 return cmd;
1220                         }
1221                         if (cmd == '0') {
1222                                 break;
1223                         } else if (cmd == '*') {
1224                                 break;
1225                         }
1226                         else {
1227                                 /* If all is well, a message exists */
1228                                 message_exists = 1;
1229                                 cmd = 0;
1230                         }
1231                         break;
1232                 case '4':
1233                 case '5':
1234                 case '6':
1235                 case '7':
1236                 case '8':
1237                 case '9':
1238                 case '*':
1239                 case '#':
1240                         cmd = ast_play_and_wait(chan, "vm-sorry");
1241                         break;
1242                 default:
1243                         if (message_exists) {
1244                                 cmd = ast_play_and_wait(chan, "vm-review");
1245                         }
1246                         else {
1247                                 cmd = ast_play_and_wait(chan, "vm-torerecord");
1248                                 if (!cmd)
1249                                         cmd = ast_waitfordigit(chan, 600);
1250                         }
1251
1252                         if (!cmd)
1253                                 cmd = ast_waitfordigit(chan, 6000);
1254                         if (!cmd) {
1255                                 attempts++;
1256                         }
1257                         if (attempts > max_attempts) {
1258                                 cmd = 't';
1259                         }
1260                 }
1261         }
1262         if (cmd == 't')
1263                 cmd = 0;
1264         return cmd;
1265 }
1266
1267 #define RES_UPONE (1 << 16)
1268 #define RES_EXIT  (1 << 17)
1269 #define RES_REPEAT (1 << 18)
1270 #define RES_RESTART ((1 << 19) | RES_REPEAT)
1271
1272 static int ast_ivr_menu_run_internal(struct ast_channel *chan, struct ast_ivr_menu *menu, void *cbdata);
1273 static int ivr_dispatch(struct ast_channel *chan, struct ast_ivr_option *option, char *exten, void *cbdata)
1274 {
1275         int res;
1276         int (*ivr_func)(struct ast_channel *, void *);
1277         char *c;
1278         char *n;
1279
1280         switch(option->action) {
1281         case AST_ACTION_UPONE:
1282                 return RES_UPONE;
1283         case AST_ACTION_EXIT:
1284                 return RES_EXIT | (((unsigned long)(option->adata)) & 0xffff);
1285         case AST_ACTION_REPEAT:
1286                 return RES_REPEAT | (((unsigned long)(option->adata)) & 0xffff);
1287         case AST_ACTION_RESTART:
1288                 return RES_RESTART ;
1289         case AST_ACTION_NOOP:
1290                 return 0;
1291         case AST_ACTION_BACKGROUND:
1292                 res = ast_stream_and_wait(chan, (char *)option->adata, chan->language, AST_DIGIT_ANY);
1293                 if (res < 0) {
1294                         ast_log(LOG_NOTICE, "Unable to find file '%s'!\n", (char *)option->adata);
1295                         res = 0;
1296                 }
1297                 return res;
1298         case AST_ACTION_PLAYBACK:
1299                 res = ast_stream_and_wait(chan, (char *)option->adata, chan->language, "");
1300                 if (res < 0) {
1301                         ast_log(LOG_NOTICE, "Unable to find file '%s'!\n", (char *)option->adata);
1302                         res = 0;
1303                 }
1304                 return res;
1305         case AST_ACTION_MENU:
1306                 res = ast_ivr_menu_run_internal(chan, (struct ast_ivr_menu *)option->adata, cbdata);
1307                 /* Do not pass entry errors back up, treaat ast though ti was an "UPONE" */
1308                 if (res == -2)
1309                         res = 0;
1310                 return res;
1311         case AST_ACTION_WAITOPTION:
1312                 res = ast_waitfordigit(chan, 1000 * (chan->pbx ? chan->pbx->rtimeout : 10));
1313                 if (!res)
1314                         return 't';
1315                 return res;
1316         case AST_ACTION_CALLBACK:
1317                 ivr_func = option->adata;
1318                 res = ivr_func(chan, cbdata);
1319                 return res;
1320         case AST_ACTION_TRANSFER:
1321                 res = ast_parseable_goto(chan, option->adata);
1322                 return 0;
1323         case AST_ACTION_PLAYLIST:
1324         case AST_ACTION_BACKLIST:
1325                 res = 0;
1326                 c = ast_strdupa(option->adata);
1327                 if (c) {
1328                         while((n = strsep(&c, ";")))
1329                                 if ((res = ast_stream_and_wait(chan, n, chan->language,
1330                                                 (option->action == AST_ACTION_BACKLIST) ? AST_DIGIT_ANY : "")))
1331                                         break;
1332                         ast_stopstream(chan);
1333                 }
1334                 return res;
1335         default:
1336                 ast_log(LOG_NOTICE, "Unknown dispatch function %d, ignoring!\n", option->action);
1337                 return 0;
1338         };
1339         return -1;
1340 }
1341
1342 static int option_exists(struct ast_ivr_menu *menu, char *option)
1343 {
1344         int x;
1345         for (x=0;menu->options[x].option;x++)
1346                 if (!strcasecmp(menu->options[x].option, option))
1347                         return x;
1348         return -1;
1349 }
1350
1351 static int option_matchmore(struct ast_ivr_menu *menu, char *option)
1352 {
1353         int x;
1354         for (x=0;menu->options[x].option;x++)
1355                 if ((!strncasecmp(menu->options[x].option, option, strlen(option))) &&
1356                                 (menu->options[x].option[strlen(option)]))
1357                         return x;
1358         return -1;
1359 }
1360
1361 static int read_newoption(struct ast_channel *chan, struct ast_ivr_menu *menu, char *exten, int maxexten)
1362 {
1363         int res=0;
1364         int ms;
1365         while(option_matchmore(menu, exten)) {
1366                 ms = chan->pbx ? chan->pbx->dtimeout : 5000;
1367                 if (strlen(exten) >= maxexten - 1)
1368                         break;
1369                 res = ast_waitfordigit(chan, ms);
1370                 if (res < 1)
1371                         break;
1372                 exten[strlen(exten) + 1] = '\0';
1373                 exten[strlen(exten)] = res;
1374         }
1375         return res > 0 ? 0 : res;
1376 }
1377
1378 static int ast_ivr_menu_run_internal(struct ast_channel *chan, struct ast_ivr_menu *menu, void *cbdata)
1379 {
1380         /* Execute an IVR menu structure */
1381         int res=0;
1382         int pos = 0;
1383         int retries = 0;
1384         char exten[AST_MAX_EXTENSION] = "s";
1385         if (option_exists(menu, "s") < 0) {
1386                 strcpy(exten, "g");
1387                 if (option_exists(menu, "g") < 0) {
1388                         ast_log(LOG_WARNING, "No 's' nor 'g' extension in menu '%s'!\n", menu->title);
1389                         return -1;
1390                 }
1391         }
1392         while(!res) {
1393                 while(menu->options[pos].option) {
1394                         if (!strcasecmp(menu->options[pos].option, exten)) {
1395                                 res = ivr_dispatch(chan, menu->options + pos, exten, cbdata);
1396                                 ast_log(LOG_DEBUG, "IVR Dispatch of '%s' (pos %d) yields %d\n", exten, pos, res);
1397                                 if (res < 0)
1398                                         break;
1399                                 else if (res & RES_UPONE)
1400                                         return 0;
1401                                 else if (res & RES_EXIT)
1402                                         return res;
1403                                 else if (res & RES_REPEAT) {
1404                                         int maxretries = res & 0xffff;
1405                                         if ((res & RES_RESTART) == RES_RESTART) {
1406                                                 retries = 0;
1407                                         } else
1408                                                 retries++;
1409                                         if (!maxretries)
1410                                                 maxretries = 3;
1411                                         if ((maxretries > 0) && (retries >= maxretries)) {
1412                                                 ast_log(LOG_DEBUG, "Max retries %d exceeded\n", maxretries);
1413                                                 return -2;
1414                                         } else {
1415                                                 if (option_exists(menu, "g") > -1)
1416                                                         strcpy(exten, "g");
1417                                                 else if (option_exists(menu, "s") > -1)
1418                                                         strcpy(exten, "s");
1419                                         }
1420                                         pos=0;
1421                                         continue;
1422                                 } else if (res && strchr(AST_DIGIT_ANY, res)) {
1423                                         ast_log(LOG_DEBUG, "Got start of extension, %c\n", res);
1424                                         exten[1] = '\0';
1425                                         exten[0] = res;
1426                                         if ((res = read_newoption(chan, menu, exten, sizeof(exten))))
1427                                                 break;
1428                                         if (option_exists(menu, exten) < 0) {
1429                                                 if (option_exists(menu, "i")) {
1430                                                         ast_log(LOG_DEBUG, "Invalid extension entered, going to 'i'!\n");
1431                                                         strcpy(exten, "i");
1432                                                         pos = 0;
1433                                                         continue;
1434                                                 } else {
1435                                                         ast_log(LOG_DEBUG, "Aborting on invalid entry, with no 'i' option!\n");
1436                                                         res = -2;
1437                                                         break;
1438                                                 }
1439                                         } else {
1440                                                 ast_log(LOG_DEBUG, "New existing extension: %s\n", exten);
1441                                                 pos = 0;
1442                                                 continue;
1443                                         }
1444                                 }
1445                         }
1446                         pos++;
1447                 }
1448                 ast_log(LOG_DEBUG, "Stopping option '%s', res is %d\n", exten, res);
1449                 pos = 0;
1450                 if (!strcasecmp(exten, "s"))
1451                         strcpy(exten, "g");
1452                 else
1453                         break;
1454         }
1455         return res;
1456 }
1457
1458 int ast_ivr_menu_run(struct ast_channel *chan, struct ast_ivr_menu *menu, void *cbdata)
1459 {
1460         int res;
1461         res = ast_ivr_menu_run_internal(chan, menu, cbdata);
1462         /* Hide internal coding */
1463         if (res > 0)
1464                 res = 0;
1465         return res;
1466 }
1467
1468 char *ast_read_textfile(const char *filename)
1469 {
1470         int fd;
1471         char *output=NULL;
1472         struct stat filesize;
1473         int count=0;
1474         int res;
1475         if(stat(filename,&filesize)== -1){
1476                 ast_log(LOG_WARNING,"Error can't stat %s\n", filename);
1477                 return NULL;
1478         }
1479         count=filesize.st_size + 1;
1480         fd = open(filename, O_RDONLY);
1481         if (fd < 0) {
1482                 ast_log(LOG_WARNING, "Cannot open file '%s' for reading: %s\n", filename, strerror(errno));
1483                 return NULL;
1484         }
1485         if ((output = ast_malloc(count))) {
1486                 res = read(fd, output, count - 1);
1487                 if (res == count - 1) {
1488                         output[res] = '\0';
1489                 } else {
1490                         ast_log(LOG_WARNING, "Short read of %s (%d of %d): %s\n", filename, res, count -  1, strerror(errno));
1491                         free(output);
1492                         output = NULL;
1493                 }
1494         }
1495         close(fd);
1496         return output;
1497 }
1498
1499 int ast_app_parse_options(const struct ast_app_option *options, struct ast_flags *flags, char **args, char *optstr)
1500 {
1501         char *s;
1502         int curarg;
1503         unsigned int argloc;
1504         char *arg;
1505         int res = 0;
1506
1507         ast_clear_flag(flags, AST_FLAGS_ALL);
1508
1509         if (!optstr)
1510                 return 0;
1511
1512         s = optstr;
1513         while (*s) {
1514                 curarg = *s++ & 0x7f;   /* the array (in app.h) has 128 entries */
1515                 ast_set_flag(flags, options[curarg].flag);
1516                 argloc = options[curarg].arg_index;
1517                 if (*s == '(') {
1518                         /* Has argument */
1519                         arg = ++s;
1520                         s = strchr(s, ')');
1521                         if (*s) {
1522                                 if (argloc)
1523                                         args[argloc - 1] = arg;
1524                                 *s++ = '\0';
1525                         } else {
1526                                 ast_log(LOG_WARNING, "Missing closing parenthesis for argument '%c' in string '%s'\n", curarg, arg);
1527                                 res = -1;
1528                         }
1529                 } else if (argloc) {
1530                         args[argloc - 1] = NULL;
1531                 }
1532         }
1533
1534         return res;
1535 }