cli.c

   1 /*
   2  * Asterisk -- A telephony toolkit for Linux.
   3  *
   4  * Standard Command Line Interface
   5  *
   6  * Copyright (C) 1999 - 2005, Digium, Inc.
   7  *
   8  * Mark Spencer <markster@digium.com>
   9  *
  10  * This program is free software, distributed under the terms of
  11  * the GNU General Public License
  12  */
  13
  14 #include <unistd.h>
  15 #include <stdlib.h>
  16 #include <asterisk/logger.h>
  17 #include <asterisk/options.h>
  18 #include <asterisk/cli.h>
  19 #include <asterisk/module.h>
  20 #include <asterisk/pbx.h>
  21 #include <asterisk/channel.h>
  22 #include <asterisk/channel_pvt.h>
  23 #include <asterisk/manager.h>
  24 #include <asterisk/utils.h>
  25 #include <asterisk/lock.h>
  26 #include <sys/signal.h>
  27 #include <stdio.h>
  28 #include <signal.h>
  29 #include <string.h>
  30 #include <ctype.h>
  31 /* For rl_filename_completion */
  32 #include "editline/readline/readline.h"
  33 /* For module directory */
  34 #include "asterisk.h"
  35 #include "build.h"
  36 #include "astconf.h"
  37
  38 #define VERSION_INFO "Asterisk " ASTERISK_VERSION " built by " BUILD_USER "@" BUILD_HOSTNAME \
  39         " on a " BUILD_MACHINE " running " BUILD_OS
  40
  41 extern unsigned long global_fin, global_fout;
  42
  43 void ast_cli(int fd, char *fmt, ...)
  44 {
  45         char *stuff;
  46         int res = 0;
  47
  48         va_list ap;
  49         va_start(ap, fmt);
  50 #ifdef SOLARIS
  51         stuff = (char *)malloc(10240);
  52         vsnprintf(stuff, 10240, fmt, ap);
  53 #else
  54         res = vasprintf(&stuff, fmt, ap);
  55 #endif
  56         va_end(ap);
  57         if (res == -1) {
  58                 ast_log(LOG_ERROR, "Out of memory\n");
  59         } else {
  60                 ast_carefulwrite(fd, stuff, strlen(stuff), 100);
  61                 free(stuff);
  62         }
  63 }
  64
  65 AST_MUTEX_DEFINE_STATIC(clilock);
  66
  67 struct ast_cli_entry *helpers = NULL;
  68
  69 static char load_help[] =
  70 "Usage: load <module name>\n"
  71 "       Loads the specified module into Asterisk.\n";
  72
  73 static char unload_help[] =
  74 "Usage: unload [-f|-h] <module name>\n"
  75 "       Unloads the specified module from Asterisk.  The -f\n"
  76 "       option causes the module to be unloaded even if it is\n"
  77 "       in use (may cause a crash) and the -h module causes the\n"
  78 "       module to be unloaded even if the module says it cannot, \n"
  79 "       which almost always will cause a crash.\n";
  80
  81 static char help_help[] =
  82 "Usage: help [topic]\n"
  83 "       When called with a topic as an argument, displays usage\n"
  84 "       information on the given command.  If called without a\n"
  85 "       topic, it provides a list of commands.\n";
  86
  87 static char chanlist_help[] =
  88 "Usage: show channels [concise]\n"
  89 "       Lists currently defined channels and some information about\n"
  90 "       them.  If 'concise' is specified, format is abridged and in\n"
  91 "       a more easily machine parsable format\n";
  92
  93 static char reload_help[] =
  94 "Usage: reload [module ...]\n"
  95 "       Reloads configuration files for all listed modules which support\n"
  96 "       reloading, or for all supported modules if none are listed.\n";
  97
  98 static char set_verbose_help[] =
  99 "Usage: set verbose <level>\n"
 100 "       Sets level of verbose messages to be displayed.  0 means\n"
 101 "       no messages should be displayed. Equivalent to -v[v[v...]]\n"
 102 "       on startup\n";
 103
 104 static char set_debug_help[] =
 105 "Usage: set debug <level>\n"
 106 "       Sets level of core debug messages to be displayed.  0 means\n"
 107 "       no messages should be displayed. Equivalent to -d[d[d...]]\n"
 108 "       on startup.\n";
 109
 110 static char softhangup_help[] =
 111 "Usage: soft hangup <channel>\n"
 112 "       Request that a channel be hung up.  The hangup takes effect\n"
 113 "       the next time the driver reads or writes from the channel\n";
 114
 115 static int handle_load(int fd, int argc, char *argv[])
 116 {
 117         if (argc != 2)
 118                 return RESULT_SHOWUSAGE;
 119         if (ast_load_resource(argv[1])) {
 120                 ast_cli(fd, "Unable to load module %s\n", argv[1]);
 121                 return RESULT_FAILURE;
 122         }
 123         return RESULT_SUCCESS;
 124 }
 125
 126 static int handle_reload(int fd, int argc, char *argv[])
 127 {
 128         int x;
 129         int res;
 130         if (argc < 1)
 131                 return RESULT_SHOWUSAGE;
 132         if (argc > 1) {
 133                 for (x=1;x<argc;x++) {
 134                         res = ast_module_reload(argv[x]);
 135                         switch(res) {
 136                         case 0:
 137                                 ast_cli(fd, "No such module '%s'\n", argv[x]);
 138                                 break;
 139                         case 1:
 140                                 ast_cli(fd, "Module '%s' does not support reload\n", argv[x]);
 141                                 break;
 142                         }
 143                 }
 144         } else
 145                 ast_module_reload(NULL);
 146         return RESULT_SUCCESS;
 147 }
 148
 149 static int handle_set_verbose(int fd, int argc, char *argv[])
 150 {
 151         int val = 0;
 152         int oldval = 0;
 153
 154         /* Has a hidden 'at least' argument */
 155         if ((argc != 3) && (argc != 4))
 156                 return RESULT_SHOWUSAGE;
 157         if ((argc == 4) && strcasecmp(argv[2], "atleast"))
 158                 return RESULT_SHOWUSAGE;
 159         oldval = option_verbose;
 160         if (argc == 3)
 161                 option_verbose = atoi(argv[2]);
 162         else {
 163                 val = atoi(argv[3]);
 164                 if (val > option_verbose)
 165                         option_verbose = val;
 166         }
 167         if (oldval != option_verbose && option_verbose > 0)
 168                 ast_cli(fd, "Verbosity was %d and is now %d\n", oldval, option_verbose);
 169         else if (oldval > 0 && option_verbose > 0)
 170                 ast_cli(fd, "Verbosity is at least %d\n", option_verbose);
 171         else if (oldval > 0 && option_verbose == 0)
 172                 ast_cli(fd, "Verbosity is now OFF\n");
 173         return RESULT_SUCCESS;
 174 }
 175
 176 static int handle_set_debug(int fd, int argc, char *argv[])
 177 {
 178         int val = 0;
 179         int oldval = 0;
 180         /* Has a hidden 'at least' argument */
 181         if ((argc != 3) && (argc != 4))
 182                 return RESULT_SHOWUSAGE;
 183         if ((argc == 4) && strcasecmp(argv[2], "atleast"))
 184                 return RESULT_SHOWUSAGE;
 185         oldval = option_debug;
 186         if (argc == 3)
 187                 option_debug = atoi(argv[2]);
 188         else {
 189                 val = atoi(argv[3]);
 190                 if (val > option_debug)
 191                         option_debug = val;
 192         }
 193         if (oldval != option_debug && option_debug > 0)
 194                 ast_cli(fd, "Core debug was %d and is now %d\n", oldval, option_debug);
 195         else if (oldval > 0 && option_debug > 0)
 196                 ast_cli(fd, "Core debug is at least %d\n", option_debug);
 197         else if (oldval > 0 && option_debug == 0)
 198                 ast_cli(fd, "Core debug is now OFF\n");
 199         return RESULT_SUCCESS;
 200 }
 201
 202 static int handle_unload(int fd, int argc, char *argv[])
 203 {
 204         int x;
 205         int force=AST_FORCE_SOFT;
 206         if (argc < 2)
 207                 return RESULT_SHOWUSAGE;
 208         for (x=1;x<argc;x++) {
 209                 if (argv[x][0] == '-') {
 210                         switch(argv[x][1]) {
 211                         case 'f':
 212                                 force = AST_FORCE_FIRM;
 213                                 break;
 214                         case 'h':
 215                                 force = AST_FORCE_HARD;
 216                                 break;
 217                         default:
 218                                 return RESULT_SHOWUSAGE;
 219                         }
 220                 } else if (x !=  argc - 1)
 221                         return RESULT_SHOWUSAGE;
 222                 else if (ast_unload_resource(argv[x], force)) {
 223                         ast_cli(fd, "Unable to unload resource %s\n", argv[x]);
 224                         return RESULT_FAILURE;
 225                 }
 226         }
 227         return RESULT_SUCCESS;
 228 }
 229
 230 #define MODLIST_FORMAT  "%-25s %-40.40s %-10d\n"
 231 #define MODLIST_FORMAT2 "%-25s %-40.40s %-10s\n"
 232
 233 AST_MUTEX_DEFINE_STATIC(climodentrylock);
 234 static int climodentryfd = -1;
 235
 236 static int modlist_modentry(char *module, char *description, int usecnt, char *like)
 237 {
 238         /* Comparing the like with the module */
 239         if ( strstr(module,like) != NULL) {
 240                 ast_cli(climodentryfd, MODLIST_FORMAT, module, description, usecnt);
 241                 return 1;
 242
 243         }
 244         return 0;
 245 }
 246
 247 static char modlist_help[] =
 248 "Usage: show modules [like keyword]\n"
 249 "       Shows Asterisk modules currently in use, and usage statistics.\n";
 250
 251 static char version_help[] =
 252 "Usage: show version\n"
 253 "       Shows Asterisk version information.\n";
 254
 255 static char uptime_help[] =
 256 "Usage: show uptime [seconds]\n"
 257 "       Shows Asterisk uptime information.\n"
 258 "       The seconds word returns the uptime in seconds only.\n";
 259
 260 static char *format_uptimestr(time_t timeval)
 261 {
 262         int years = 0, weeks = 0, days = 0, hours = 0, mins = 0, secs = 0;
 263         char timestr[256]="";
 264         int bytes = 0;
 265         int maxbytes = 0;
 266         int offset = 0;
 267 #define SECOND (1)
 268 #define MINUTE (SECOND*60)
 269 #define HOUR (MINUTE*60)
 270 #define DAY (HOUR*24)
 271 #define WEEK (DAY*7)
 272 #define YEAR (DAY*365)
 273 #define ESS(x) ((x == 1) ? "" : "s")
 274
 275         maxbytes = sizeof(timestr);
 276         if (timeval < 0)
 277                 return NULL;
 278         if (timeval > YEAR) {
 279                 years = (timeval / YEAR);
 280                 timeval -= (years * YEAR);
 281                 if (years > 0) {
 282                         snprintf(timestr + offset, maxbytes, "%d year%s, ", years, ESS(years));
 283                         bytes = strlen(timestr + offset);
 284                         offset += bytes;
 285                         maxbytes -= bytes;
 286                 }
 287         }
 288         if (timeval > WEEK) {
 289                 weeks = (timeval / WEEK);
 290                 timeval -= (weeks * WEEK);
 291                 if (weeks > 0) {
 292                         snprintf(timestr + offset, maxbytes, "%d week%s, ", weeks, ESS(weeks));
 293                         bytes = strlen(timestr + offset);
 294                         offset += bytes;
 295                         maxbytes -= bytes;
 296                 }
 297         }
 298         if (timeval > DAY) {
 299                 days = (timeval / DAY);
 300                 timeval -= (days * DAY);
 301                 if (days > 0) {
 302                         snprintf(timestr + offset, maxbytes, "%d day%s, ", days, ESS(days));
 303                         bytes = strlen(timestr + offset);
 304                         offset += bytes;
 305                         maxbytes -= bytes;
 306                 }
 307         }
 308         if (timeval > HOUR) {
 309                 hours = (timeval / HOUR);
 310                 timeval -= (hours * HOUR);
 311                 if (hours > 0) {
 312                         snprintf(timestr + offset, maxbytes, "%d hour%s, ", hours, ESS(hours));
 313                         bytes = strlen(timestr + offset);
 314                         offset += bytes;
 315                         maxbytes -= bytes;
 316                 }
 317         }
 318         if (timeval > MINUTE) {
 319                 mins = (timeval / MINUTE);
 320                 timeval -= (mins * MINUTE);
 321                 if (mins > 0) {
 322                         snprintf(timestr + offset, maxbytes, "%d minute%s, ", mins, ESS(mins));
 323                         bytes = strlen(timestr + offset);
 324                         offset += bytes;
 325                         maxbytes -= bytes;
 326                 }
 327         }
 328         secs = timeval;
 329
 330         if (secs > 0) {
 331                 snprintf(timestr + offset, maxbytes, "%d second%s", secs, ESS(secs));
 332         }
 333
 334         return timestr ? strdup(timestr) : NULL;
 335 }
 336
 337 static int handle_showuptime(int fd, int argc, char *argv[])
 338 {
 339         time_t curtime, tmptime;
 340         char *timestr;
 341         int printsec;
 342
 343         printsec = ((argc == 3) && (!strcasecmp(argv[2],"seconds")));
 344         if ((argc != 2) && (!printsec))
 345                 return RESULT_SHOWUSAGE;
 346
 347         time(&curtime);
 348         if (ast_startuptime) {
 349                 tmptime = curtime - ast_startuptime;
 350                 if (printsec) {
 351                         ast_cli(fd, "System uptime: %lu\n",tmptime);
 352                 } else {
 353                         timestr = format_uptimestr(tmptime);
 354                         if (timestr) {
 355                                 ast_cli(fd, "System uptime: %s\n", timestr);
 356                                 free(timestr);
 357                         }
 358                 }
 359         }
 360         if (ast_lastreloadtime) {
 361                 tmptime = curtime - ast_lastreloadtime;
 362                 if (printsec) {
 363                         ast_cli(fd, "Last reload: %lu\n", tmptime);
 364                 } else {
 365                         timestr = format_uptimestr(tmptime);
 366                         if ((timestr) && (!printsec)) {
 367                                 ast_cli(fd, "Last reload: %s\n", timestr);
 368                                 free(timestr);
 369                         }
 370                 }
 371         }
 372         return RESULT_SUCCESS;
 373 }
 374
 375 static int handle_modlist(int fd, int argc, char *argv[])
 376 {
 377         char *like = "";
 378         if (argc == 3)
 379                 return RESULT_SHOWUSAGE;
 380         else if (argc >= 4) {
 381                 if ( strcmp(argv[2],"like") )
 382                         return RESULT_SHOWUSAGE;
 383                 like = argv[3];
 384         }
 385
 386         ast_mutex_lock(&climodentrylock);
 387         climodentryfd = fd;
 388         ast_cli(fd, MODLIST_FORMAT2, "Module", "Description", "Use Count");
 389         ast_cli(fd,"%d modules loaded\n",ast_update_module_list(modlist_modentry,like));
 390         climodentryfd = -1;
 391         ast_mutex_unlock(&climodentrylock);
 392         return RESULT_SUCCESS;
 393 }
 394
 395 static int handle_version(int fd, int argc, char *argv[])
 396 {
 397         if (argc != 2)
 398                 return RESULT_SHOWUSAGE;
 399         ast_cli(fd, "%s\n", VERSION_INFO);
 400         return RESULT_SUCCESS;
 401 }
 402 static int handle_chanlist(int fd, int argc, char *argv[])
 403 {
 404 #define FORMAT_STRING  "%15s  (%-10s %-12s %-4d) %7s %-12s  %-15s\n"
 405 #define FORMAT_STRING2 "%15s  (%-10s %-12s %-4s) %7s %-12s  %-15s\n"
 406 #define CONCISE_FORMAT_STRING  "%s:%s:%s:%d:%s:%s:%s:%s:%s:%d\n"
 407
 408         struct ast_channel *c=NULL;
 409         int numchans = 0;
 410         int concise = 0;
 411         if (argc < 2 || argc > 3)
 412                 return RESULT_SHOWUSAGE;
 413
 414         concise = (argc == 3 && (!strcasecmp(argv[2],"concise")));
 415         c = ast_channel_walk_locked(NULL);
 416         if(!concise)
 417                 ast_cli(fd, FORMAT_STRING2, "Channel", "Context", "Extension", "Pri", "State", "Appl.", "Data");
 418         while(c) {
 419                 if(concise)
 420                         ast_cli(fd, CONCISE_FORMAT_STRING, c->name, c->context, c->exten, c->priority, ast_state2str(c->_state),
 421                                         c->appl ? c->appl : "(None)", c->data ? ( !ast_strlen_zero(c->data) ? c->data : "" ): "",
 422                                         (c->cid.cid_num && !ast_strlen_zero(c->cid.cid_num)) ? c->cid.cid_num : "",
 423                                         (c->accountcode && !ast_strlen_zero(c->accountcode)) ? c->accountcode : "",c->amaflags);
 424                 else
 425                         ast_cli(fd, FORMAT_STRING, c->name, c->context, c->exten, c->priority, ast_state2str(c->_state),
 426                                         c->appl ? c->appl : "(None)", c->data ? ( !ast_strlen_zero(c->data) ? c->data : "(Empty)" ): "(None)");
 427
 428                 numchans++;
 429                 ast_mutex_unlock(&c->lock);
 430                 c = ast_channel_walk_locked(c);
 431         }
 432         if(!concise)
 433                 ast_cli(fd, "%d active channel(s)\n", numchans);
 434         return RESULT_SUCCESS;
 435 }
 436
 437 static char showchan_help[] =
 438 "Usage: show channel <channel>\n"
 439 "       Shows lots of information about the specified channel.\n";
 440
 441 static char debugchan_help[] =
 442 "Usage: debug channel <channel>\n"
 443 "       Enables debugging on a specific channel.\n";
 444
 445 static char nodebugchan_help[] =
 446 "Usage: no debug channel <channel>\n"
 447 "       Disables debugging on a specific channel.\n";
 448
 449 static char commandcomplete_help[] =
 450 "Usage: _command complete \"<line>\" text state\n"
 451 "       This function is used internally to help with command completion and should.\n"
 452 "       never be called by the user directly.\n";
 453
 454 static char commandnummatches_help[] =
 455 "Usage: _command nummatches \"<line>\" text \n"
 456 "       This function is used internally to help with command completion and should.\n"
 457 "       never be called by the user directly.\n";
 458
 459 static char commandmatchesarray_help[] =
 460 "Usage: _command matchesarray \"<line>\" text \n"
 461 "       This function is used internally to help with command completion and should.\n"
 462 "       never be called by the user directly.\n";
 463
 464 static int handle_softhangup(int fd, int argc, char *argv[])
 465 {
 466         struct ast_channel *c=NULL;
 467         if (argc != 3)
 468                 return RESULT_SHOWUSAGE;
 469         c = ast_channel_walk_locked(NULL);
 470         while(c) {
 471                 if (!strcasecmp(c->name, argv[2])) {
 472                         ast_cli(fd, "Requested Hangup on channel '%s'\n", c->name);
 473                         ast_softhangup(c, AST_SOFTHANGUP_EXPLICIT);
 474                         ast_mutex_unlock(&c->lock);
 475                         break;
 476                 }
 477                 ast_mutex_unlock(&c->lock);
 478                 c = ast_channel_walk_locked(c);
 479         }
 480         if (!c)
 481                 ast_cli(fd, "%s is not a known channel\n", argv[2]);
 482         return RESULT_SUCCESS;
 483 }
 484
 485 static char *__ast_cli_generator(char *text, char *word, int state, int lock);
 486
 487 static int handle_commandmatchesarray(int fd, int argc, char *argv[])
 488 {
 489         char *buf, *obuf;
 490         int buflen = 2048;
 491         int len = 0;
 492         char **matches;
 493         int x, matchlen;
 494
 495         if (argc != 4)
 496                 return RESULT_SHOWUSAGE;
 497         buf = malloc(buflen);
 498         if (!buf)
 499                 return RESULT_FAILURE;
 500         buf[len] = '\0';
 501         matches = ast_cli_completion_matches(argv[2], argv[3]);
 502         if (matches) {
 503                 for (x=0; matches[x]; x++) {
 504 #if 0
 505                         printf("command matchesarray for '%s' %s got '%s'\n", argv[2], argv[3], matches[x]);
 506 #endif
 507                         matchlen = strlen(matches[x]) + 1;
 508                         if (len + matchlen >= buflen) {
 509                                 buflen += matchlen * 3;
 510                                 obuf = buf;
 511                                 buf = realloc(obuf, buflen);
 512                                 if (!buf)
 513                                         /* Out of memory...  Just free old buffer and be done */
 514                                         free(obuf);
 515                         }
 516                         if (buf)
 517                                 len += sprintf( buf + len, "%s ", matches[x]);
 518                         free(matches[x]);
 519                         matches[x] = NULL;
 520                 }
 521                 free(matches);
 522         }
 523 #if 0
 524         printf("array for '%s' %s got '%s'\n", argv[2], argv[3], buf);
 525 #endif
 526
 527         if (buf) {
 528                 ast_cli(fd, "%s%s",buf, AST_CLI_COMPLETE_EOF);
 529                 free(buf);
 530         } else
 531                 ast_cli(fd, "NULL\n");
 532
 533         return RESULT_SUCCESS;
 534 }
 535
 536
 537
 538 static int handle_commandnummatches(int fd, int argc, char *argv[])
 539 {
 540         int matches = 0;
 541
 542         if (argc != 4)
 543                 return RESULT_SHOWUSAGE;
 544
 545         matches = ast_cli_generatornummatches(argv[2], argv[3]);
 546
 547 #if 0
 548         printf("Search for '%s' %s got '%d'\n", argv[2], argv[3], matches);
 549 #endif
 550         ast_cli(fd, "%d", matches);
 551
 552         return RESULT_SUCCESS;
 553 }
 554
 555 static int handle_commandcomplete(int fd, int argc, char *argv[])
 556 {
 557         char *buf;
 558 #if 0
 559         printf("Search for %d args: '%s', '%s', '%s', '%s'\n", argc, argv[0], argv[1], argv[2], argv[3]);
 560 #endif
 561         if (argc != 5)
 562                 return RESULT_SHOWUSAGE;
 563         buf = __ast_cli_generator(argv[2], argv[3], atoi(argv[4]), 0);
 564 #if 0
 565         printf("Search for '%s' %s %d got '%s'\n", argv[2], argv[3], atoi(argv[4]), buf);
 566 #endif
 567         if (buf) {
 568                 ast_cli(fd, buf);
 569                 free(buf);
 570         } else
 571                 ast_cli(fd, "NULL\n");
 572         return RESULT_SUCCESS;
 573 }
 574
 575 static int handle_debugchan(int fd, int argc, char *argv[])
 576 {
 577         struct ast_channel *c=NULL;
 578         int is_all;
 579         if (argc != 3)
 580                 return RESULT_SHOWUSAGE;
 581
 582         is_all = !strcasecmp("all", argv[2]);
 583         if (is_all) {
 584                 global_fin |= 0x80000000;
 585                 global_fout |= 0x80000000;
 586         }
 587         c = ast_channel_walk_locked(NULL);
 588         while(c) {
 589                 if (is_all || !strcasecmp(c->name, argv[2])) {
 590                         if (!(c->fin & 0x80000000) || !(c->fout & 0x80000000)) {
 591                                 c->fin |= 0x80000000;
 592                                 c->fout |= 0x80000000;
 593                                 ast_cli(fd, "Debugging enabled on channel %s\n", c->name);
 594                         }
 595                         if (!is_all)
 596                                 break;
 597                 }
 598                 ast_mutex_unlock(&c->lock);
 599                 c = ast_channel_walk_locked(c);
 600         }
 601         if (!is_all) {
 602                 if (c)
 603                         ast_mutex_unlock(&c->lock);
 604                 else
 605                         ast_cli(fd, "No such channel %s\n", argv[2]);
 606         }
 607         else
 608                 ast_cli(fd, "Debugging on new channels is enabled\n");
 609         return RESULT_SUCCESS;
 610 }
 611
 612 static int handle_nodebugchan(int fd, int argc, char *argv[])
 613 {
 614         struct ast_channel *c=NULL;
 615         int is_all;
 616         if (argc != 4)
 617                 return RESULT_SHOWUSAGE;
 618         is_all = !strcasecmp("all", argv[3]);
 619         if (is_all) {
 620                 global_fin &= ~0x80000000;
 621                 global_fout &= ~0x80000000;
 622         }
 623         c = ast_channel_walk_locked(NULL);
 624         while(c) {
 625                 if (is_all || !strcasecmp(c->name, argv[3])) {
 626                         if ((c->fin & 0x80000000) || (c->fout & 0x80000000)) {
 627                                 c->fin &= 0x7fffffff;
 628                                 c->fout &= 0x7fffffff;
 629                                 ast_cli(fd, "Debugging disabled on channel %s\n", c->name);
 630                         }
 631                         if (!is_all)
 632                                 break;
 633                 }
 634                 ast_mutex_unlock(&c->lock);
 635                 c = ast_channel_walk_locked(c);
 636         }
 637         if (!is_all) {
 638                 if (c)
 639                         ast_mutex_unlock(&c->lock);
 640                 else
 641                         ast_cli(fd, "No such channel %s\n", argv[3]);
 642         }
 643         else
 644                 ast_cli(fd, "Debugging on new channels is disabled\n");
 645         return RESULT_SUCCESS;
 646 }
 647
 648
 649
 650 static int handle_showchan(int fd, int argc, char *argv[])
 651 {
 652         struct ast_channel *c=NULL;
 653         struct timeval now;
 654         char buf[2048];
 655         char cdrtime[256];
 656         long elapsed_seconds=0;
 657         int hour=0, min=0, sec=0;
 658
 659         if (argc != 3)
 660                 return RESULT_SHOWUSAGE;
 661         gettimeofday(&now, NULL);
 662         c = ast_channel_walk_locked(NULL);
 663         while(c) {
 664                 if (!strcasecmp(c->name, argv[2])) {
 665                         if(c->cdr) {
 666                                 elapsed_seconds = now.tv_sec - c->cdr->start.tv_sec;
 667                                 hour = elapsed_seconds / 3600;
 668                                 min = (elapsed_seconds % 3600) / 60;
 669                                 sec = elapsed_seconds % 60;
 670                                 snprintf(cdrtime, sizeof(cdrtime), "%dh%dm%ds", hour, min, sec);
 671                         } else
 672                                 strncpy(cdrtime, "N/A", sizeof(cdrtime) -1);
 673                         ast_cli(fd,
 674         " -- General --\n"
 675         "           Name: %s\n"
 676         "           Type: %s\n"
 677         "       UniqueID: %s\n"
 678         "      Caller ID: %s\n"
 679         " Caller ID Name: %s\n"
 680         "    DNID Digits: %s\n"
 681         "          State: %s (%d)\n"
 682         "          Rings: %d\n"
 683         "   NativeFormat: %d\n"
 684         "    WriteFormat: %d\n"
 685         "     ReadFormat: %d\n"
 686         "1st File Descriptor: %d\n"
 687         "      Frames in: %d%s\n"
 688         "     Frames out: %d%s\n"
 689         " Time to Hangup: %ld\n"
 690         "   Elapsed Time: %s\n"
 691         "  Direct Bridge: %s\n"
 692         "Indirect Bridge: %s\n"
 693         " --   PBX   --\n"
 694         "        Context: %s\n"
 695         "      Extension: %s\n"
 696         "       Priority: %d\n"
 697         "     Call Group: %d\n"
 698         "   Pickup Group: %d\n"
 699         "    Application: %s\n"
 700         "           Data: %s\n"
 701         "    Blocking in: %s\n",
 702         c->name, c->type, c->uniqueid,
 703         (c->cid.cid_num ? c->cid.cid_num : "(N/A)"),
 704         (c->cid.cid_name ? c->cid.cid_name : "(N/A)"),
 705         (c->cid.cid_dnid ? c->cid.cid_dnid : "(N/A)" ), ast_state2str(c->_state), c->_state, c->rings, c->nativeformats, c->writeformat, c->readformat,
 706         c->fds[0], c->fin & 0x7fffffff, (c->fin & 0x80000000) ? " (DEBUGGED)" : "",
 707         c->fout & 0x7fffffff, (c->fout & 0x80000000) ? " (DEBUGGED)" : "", (long)c->whentohangup,
 708         cdrtime, c->_bridge ? c->_bridge->name : "<none>", ast_bridged_channel(c) ? ast_bridged_channel(c)->name : "<none>",
 709         c->context, c->exten, c->priority, c->callgroup, c->pickupgroup, ( c->appl ? c->appl : "(N/A)" ),
 710         ( c-> data ? (!ast_strlen_zero(c->data) ? c->data : "(Empty)") : "(None)"),
 711         (ast_test_flag(c, AST_FLAG_BLOCKING) ? c->blockproc : "(Not Blocking)"));
 712                         if(pbx_builtin_serialize_variables(c,buf,sizeof(buf)))
 713                                 ast_cli(fd,"      Variables:\n%s\n",buf);
 714                         if(c->cdr && ast_cdr_serialize_variables(c->cdr,buf, sizeof(buf), '=', '\n', 1))
 715                                 ast_cli(fd,"  CDR Variables:\n%s\n",buf);
 716
 717                         ast_mutex_unlock(&c->lock);
 718                 break;
 719                 }
 720                 ast_mutex_unlock(&c->lock);
 721                 c = ast_channel_walk_locked(c);
 722         }
 723         if (!c)
 724                 ast_cli(fd, "%s is not a known channel\n", argv[2]);
 725         return RESULT_SUCCESS;
 726 }
 727
 728 static char *complete_ch_helper(char *line, char *word, int pos, int state, int rpos)
 729 {
 730         struct ast_channel *c;
 731         int which=0;
 732         char *ret;
 733         if (pos != rpos)
 734                 return NULL;
 735         c = ast_channel_walk_locked(NULL);
 736         while(c) {
 737                 if (!strncasecmp(word, c->name, strlen(word))) {
 738                         if (++which > state)
 739                                 break;
 740                 }
 741                 ast_mutex_unlock(&c->lock);
 742                 c = ast_channel_walk_locked(c);
 743         }
 744         if (c) {
 745                 ret = strdup(c->name);
 746                 ast_mutex_unlock(&c->lock);
 747         } else
 748                 ret = NULL;
 749         return ret;
 750 }
 751
 752 static char *complete_ch_3(char *line, char *word, int pos, int state)
 753 {
 754         return complete_ch_helper(line, word, pos, state, 2);
 755 }
 756
 757 static char *complete_ch_4(char *line, char *word, int pos, int state)
 758 {
 759         return complete_ch_helper(line, word, pos, state, 3);
 760 }
 761
 762 static char *complete_mod_2(char *line, char *word, int pos, int state)
 763 {
 764         return ast_module_helper(line, word, pos, state, 1, 1);
 765 }
 766
 767 static char *complete_mod_4(char *line, char *word, int pos, int state)
 768 {
 769         return ast_module_helper(line, word, pos, state, 3, 0);
 770 }
 771
 772 static char *complete_fn(char *line, char *word, int pos, int state)
 773 {
 774         char *c;
 775         char filename[256];
 776         if (pos != 1)
 777                 return NULL;
 778         if (word[0] == '/')
 779                 strncpy(filename, word, sizeof(filename)-1);
 780         else
 781                 snprintf(filename, sizeof(filename), "%s/%s", (char *)ast_config_AST_MODULE_DIR, word);
 782         c = (char*)filename_completion_function(filename, state);
 783         if (c && word[0] != '/')
 784                 c += (strlen((char*)ast_config_AST_MODULE_DIR) + 1);
 785         return c ? strdup(c) : c;
 786 }
 787
 788 static int handle_help(int fd, int argc, char *argv[]);
 789
 790 static struct ast_cli_entry builtins[] = {
 791         /* Keep alphabetized, with longer matches first (example: abcd before abc) */
 792         { { "_command", "complete", NULL }, handle_commandcomplete, "Command complete", commandcomplete_help },
 793         { { "_command", "nummatches", NULL }, handle_commandnummatches, "Returns number of command matches", commandnummatches_help },
 794         { { "_command", "matchesarray", NULL }, handle_commandmatchesarray, "Returns command matches array", commandmatchesarray_help },
 795         { { "debug", "channel", NULL }, handle_debugchan, "Enable debugging on a channel", debugchan_help, complete_ch_3 },
 796         { { "help", NULL }, handle_help, "Display help list, or specific help on a command", help_help },
 797         { { "load", NULL }, handle_load, "Load a dynamic module by name", load_help, complete_fn },
 798         { { "no", "debug", "channel", NULL }, handle_nodebugchan, "Disable debugging on a channel", nodebugchan_help, complete_ch_4 },
 799         { { "reload", NULL }, handle_reload, "Reload configuration", reload_help, complete_mod_2 },
 800         { { "set", "debug", NULL }, handle_set_debug, "Set level of debug chattiness", set_debug_help },
 801         { { "set", "verbose", NULL }, handle_set_verbose, "Set level of verboseness", set_verbose_help },
 802         { { "show", "channel", NULL }, handle_showchan, "Display information on a specific channel", showchan_help, complete_ch_3 },
 803         { { "show", "channels", NULL }, handle_chanlist, "Display information on channels", chanlist_help },
 804         { { "show", "modules", NULL }, handle_modlist, "List modules and info", modlist_help },
 805         { { "show", "modules", "like", NULL }, handle_modlist, "List modules and info", modlist_help, complete_mod_4 },
 806         { { "show", "uptime", NULL }, handle_showuptime, "Show uptime information", uptime_help },
 807         { { "show", "version", NULL }, handle_version, "Display version info", version_help },
 808         { { "soft", "hangup", NULL }, handle_softhangup, "Request a hangup on a given channel", softhangup_help, complete_ch_3 },
 809         { { "unload", NULL }, handle_unload, "Unload a dynamic module by name", unload_help, complete_fn },
 810         { { NULL }, NULL, NULL, NULL }
 811 };
 812
 813 static struct ast_cli_entry *find_cli(char *cmds[], int exact)
 814 {
 815         int x;
 816         int y;
 817         int match;
 818         struct ast_cli_entry *e=NULL;
 819         for (x=0;builtins[x].cmda[0];x++) {
 820                 /* start optimistic */
 821                 match = 1;
 822                 for (y=0;match && cmds[y]; y++) {
 823                         /* If there are no more words in the candidate command, then we're
 824                            there.  */
 825                         if (!builtins[x].cmda[y] && !exact)
 826                                 break;
 827                         /* If there are no more words in the command (and we're looking for
 828                            an exact match) or there is a difference between the two words,
 829                            then this is not a match */
 830                         if (!builtins[x].cmda[y] || strcasecmp(builtins[x].cmda[y], cmds[y]))
 831                                 match = 0;
 832                 }
 833                 /* If more words are needed to complete the command then this is not
 834                    a candidate (unless we're looking for a really inexact answer  */
 835                 if ((exact > -1) && builtins[x].cmda[y])
 836                         match = 0;
 837                 if (match)
 838                         return &builtins[x];
 839         }
 840         for (e=helpers;e;e=e->next) {
 841                 match = 1;
 842                 for (y=0;match && cmds[y]; y++) {
 843                         if (!e->cmda[y] && !exact)
 844                                 break;
 845                         if (!e->cmda[y] || strcasecmp(e->cmda[y], cmds[y]))
 846                                 match = 0;
 847                 }
 848                 if ((exact > -1) && e->cmda[y])
 849                         match = 0;
 850                 if (match)
 851                         break;
 852         }
 853         return e;
 854 }
 855
 856 static void join(char *dest, size_t destsize, char *w[])
 857 {
 858         int x;
 859         /* Join words into a string */
 860         if (!dest || destsize < 1) {
 861                 return;
 862         }
 863         dest[0] = '\0';
 864         for (x=0;w[x];x++) {
 865                 if (x)
 866                         strncat(dest, " ", destsize - strlen(dest) - 1);
 867                 strncat(dest, w[x], destsize - strlen(dest) - 1);
 868         }
 869 }
 870
 871 static void join2(char *dest, size_t destsize, char *w[])
 872 {
 873         int x;
 874         /* Join words into a string */
 875         if (!dest || destsize < 1) {
 876                 return;
 877         }
 878         dest[0] = '\0';
 879         for (x=0;w[x];x++) {
 880                 strncat(dest, w[x], destsize - strlen(dest) - 1);
 881         }
 882 }
 883
 884 static char *find_best(char *argv[])
 885 {
 886         static char cmdline[80];
 887         int x;
 888         /* See how close we get, then print the  */
 889         char *myargv[AST_MAX_CMD_LEN];
 890         for (x=0;x<AST_MAX_CMD_LEN;x++)
 891                 myargv[x]=NULL;
 892         for (x=0;argv[x];x++) {
 893                 myargv[x] = argv[x];
 894                 if (!find_cli(myargv, -1))
 895                         break;
 896         }
 897         join(cmdline, sizeof(cmdline), myargv);
 898         return cmdline;
 899 }
 900
 901 int ast_cli_unregister(struct ast_cli_entry *e)
 902 {
 903         struct ast_cli_entry *cur, *l=NULL;
 904         ast_mutex_lock(&clilock);
 905         cur = helpers;
 906         while(cur) {
 907                 if (e == cur) {
 908                         if (e->inuse) {
 909                                 ast_log(LOG_WARNING, "Can't remove command that is in use\n");
 910                         } else {
 911                                 /* Rewrite */
 912                                 if (l)
 913                                         l->next = e->next;
 914                                 else
 915                                         helpers = e->next;
 916                                 e->next = NULL;
 917                                 break;
 918                         }
 919                 }
 920                 l = cur;
 921                 cur = cur->next;
 922         }
 923         ast_mutex_unlock(&clilock);
 924         return 0;
 925 }
 926
 927 int ast_cli_register(struct ast_cli_entry *e)
 928 {
 929         struct ast_cli_entry *cur, *l=NULL;
 930         char fulle[80] ="", fulltst[80] ="";
 931         static int len;
 932         ast_mutex_lock(&clilock);
 933         join2(fulle, sizeof(fulle), e->cmda);
 934         if (find_cli(e->cmda, -1)) {
 935                 ast_mutex_unlock(&clilock);
 936                 ast_log(LOG_WARNING, "Command '%s' already registered (or something close enough)\n", fulle);
 937                 return -1;
 938         }
 939         cur = helpers;
 940         while(cur) {
 941                 join2(fulltst, sizeof(fulltst), cur->cmda);
 942                 len = strlen(fulltst);
 943                 if (strlen(fulle) < len)
 944                         len = strlen(fulle);
 945                 if (strncasecmp(fulle, fulltst, len) < 0) {
 946                         if (l) {
 947                                 e->next = l->next;
 948                                 l->next = e;
 949                         } else {
 950                                 e->next = helpers;
 951                                 helpers = e;
 952                         }
 953                         break;
 954                 }
 955                 l = cur;
 956                 cur = cur->next;
 957         }
 958         if (!cur) {
 959                 if (l)
 960                         l->next = e;
 961                 else
 962                         helpers = e;
 963                 e->next = NULL;
 964         }
 965         ast_mutex_unlock(&clilock);
 966         return 0;
 967 }
 968
 969 static int help_workhorse(int fd, char *match[])
 970 {
 971         char fullcmd1[80] = "";
 972         char fullcmd2[80] = "";
 973         char matchstr[80];
 974         char *fullcmd = NULL;
 975         struct ast_cli_entry *e, *e1, *e2;
 976         e1 = builtins;
 977         e2 = helpers;
 978         if (match)
 979                 join(matchstr, sizeof(matchstr), match);
 980         while(e1->cmda[0] || e2) {
 981                 if (e2)
 982                         join(fullcmd2, sizeof(fullcmd2), e2->cmda);
 983                 if (e1->cmda[0])
 984                         join(fullcmd1, sizeof(fullcmd1), e1->cmda);
 985                 if (!e1->cmda[0] ||
 986                                 (e2 && (strcmp(fullcmd2, fullcmd1) < 0))) {
 987                         /* Use e2 */
 988                         e = e2;
 989                         fullcmd = fullcmd2;
 990                         /* Increment by going to next */
 991                         e2 = e2->next;
 992                 } else {
 993                         /* Use e1 */
 994                         e = e1;
 995                         fullcmd = fullcmd1;
 996                         e1++;
 997                 }
 998                 /* Hide commands that start with '_' */
 999                 if (fullcmd[0] == '_')
1000                         continue;
1001                 if (match) {
1002                         if (strncasecmp(matchstr, fullcmd, strlen(matchstr))) {
1003                                 continue;
1004                         }
1005                 }
1006                 ast_cli(fd, "%25.25s  %s\n", fullcmd, e->summary);
1007         }
1008         return 0;
1009 }
1010
1011 static int handle_help(int fd, int argc, char *argv[]) {
1012         struct ast_cli_entry *e;
1013         char fullcmd[80];
1014         if ((argc < 1))
1015                 return RESULT_SHOWUSAGE;
1016         if (argc > 1) {
1017                 e = find_cli(argv + 1, 1);
1018                 if (e)
1019                         ast_cli(fd, e->usage);
1020                 else {
1021                         if (find_cli(argv + 1, -1)) {
1022                                 return help_workhorse(fd, argv + 1);
1023                         } else {
1024                                 join(fullcmd, sizeof(fullcmd), argv+1);
1025                                 ast_cli(fd, "No such command '%s'.\n", fullcmd);
1026                         }
1027                 }
1028         } else {
1029                 return help_workhorse(fd, NULL);
1030         }
1031         return RESULT_SUCCESS;
1032 }
1033
1034 static char *parse_args(char *s, int *max, char *argv[])
1035 {
1036         char *dup, *cur;
1037         int x=0;
1038         int quoted=0;
1039         int escaped=0;
1040         int whitespace=1;
1041
1042         dup = strdup(s);
1043         if (dup) {
1044                 cur = dup;
1045                 while(*s) {
1046                         switch(*s) {
1047                         case '"':
1048                                 /* If it's escaped, put a literal quote */
1049                                 if (escaped)
1050                                         goto normal;
1051                                 else
1052                                         quoted = !quoted;
1053                                 if (quoted && whitespace) {
1054                                         /* If we're starting a quote, coming off white space start a new word, too */
1055                                         argv[x++] = cur;
1056                                         whitespace=0;
1057                                 }
1058                                 escaped = 0;
1059                                 break;
1060                         case ' ':
1061                         case '\t':
1062                                 if (!quoted && !escaped) {
1063                                         /* If we're not quoted, mark this as whitespace, and
1064                                            end the previous argument */
1065                                         whitespace = 1;
1066                                         *(cur++) = '\0';
1067                                 } else
1068                                         /* Otherwise, just treat it as anything else */
1069                                         goto normal;
1070                                 break;
1071                         case '\\':
1072                                 /* If we're escaped, print a literal, otherwise enable escaping */
1073                                 if (escaped) {
1074                                         goto normal;
1075                                 } else {
1076                                         escaped=1;
1077                                 }
1078                                 break;
1079                         default:
1080 normal:
1081                                 if (whitespace) {
1082                                         if (x >= AST_MAX_ARGS -1) {
1083                                                 ast_log(LOG_WARNING, "Too many arguments, truncating\n");
1084                                                 break;
1085                                         }
1086                                         /* Coming off of whitespace, start the next argument */
1087                                         argv[x++] = cur;
1088                                         whitespace=0;
1089                                 }
1090                                 *(cur++) = *s;
1091                                 escaped=0;
1092                         }
1093                         s++;
1094                 }
1095                 /* Null terminate */
1096                 *(cur++) = '\0';
1097                 argv[x] = NULL;
1098                 *max = x;
1099         }
1100         return dup;
1101 }
1102
1103 /* This returns the number of unique matches for the generator */
1104 int ast_cli_generatornummatches(char *text, char *word)
1105 {
1106         int matches = 0, i = 0;
1107         char *buf = NULL, *oldbuf = NULL;
1108
1109         while ( (buf = ast_cli_generator(text, word, i)) ) {
1110                 if (++i > 1 && strcmp(buf,oldbuf) == 0)  {
1111                                 continue;
1112                 }
1113                 oldbuf = buf;
1114                 matches++;
1115         }
1116
1117         return matches;
1118 }
1119
1120 char **ast_cli_completion_matches(char *text, char *word)
1121 {
1122         char **match_list = NULL, *retstr, *prevstr;
1123         size_t match_list_len, max_equal, which, i;
1124         int matches = 0;
1125
1126         match_list_len = 1;
1127         while ((retstr = ast_cli_generator(text, word, matches)) != NULL) {
1128                 if (matches + 1 >= match_list_len) {
1129                         match_list_len <<= 1;
1130                         match_list = realloc(match_list, match_list_len * sizeof(char *));
1131                 }
1132                 match_list[++matches] = retstr;
1133         }
1134
1135         if (!match_list)
1136                 return (char **) NULL;
1137
1138         which = 2;
1139         prevstr = match_list[1];
1140         max_equal = strlen(prevstr);
1141         for (; which <= matches; which++) {
1142                 for (i = 0; i < max_equal && toupper(prevstr[i]) == toupper(match_list[which][i]); i++)
1143                         continue;
1144                 max_equal = i;
1145         }
1146
1147         retstr = malloc(max_equal + 1);
1148         (void) strncpy(retstr, match_list[1], max_equal);
1149         retstr[max_equal] = '\0';
1150         match_list[0] = retstr;
1151
1152         if (matches + 1 >= match_list_len)
1153                 match_list = realloc(match_list, (match_list_len + 1) * sizeof(char *));
1154         match_list[matches + 1] = (char *) NULL;
1155
1156         return (match_list);
1157 }
1158
1159 static char *__ast_cli_generator(char *text, char *word, int state, int lock)
1160 {
1161         char *argv[AST_MAX_ARGS];
1162         struct ast_cli_entry *e, *e1, *e2;
1163         int x;
1164         int matchnum=0;
1165         char *dup, *res;
1166         char fullcmd1[80] = "";
1167         char fullcmd2[80] = "";
1168         char matchstr[80];
1169         char *fullcmd = NULL;
1170
1171         if ((dup = parse_args(text, &x, argv))) {
1172                 join(matchstr, sizeof(matchstr), argv);
1173                 if (lock)
1174                         ast_mutex_lock(&clilock);
1175                 e1 = builtins;
1176                 e2 = helpers;
1177                 while(e1->cmda[0] || e2) {
1178                         if (e2)
1179                                 join(fullcmd2, sizeof(fullcmd2), e2->cmda);
1180                         if (e1->cmda[0])
1181                                 join(fullcmd1, sizeof(fullcmd1), e1->cmda);
1182                         if (!e1->cmda[0] ||
1183                                         (e2 && (strcmp(fullcmd2, fullcmd1) < 0))) {
1184                                 /* Use e2 */
1185                                 e = e2;
1186                                 fullcmd = fullcmd2;
1187                                 /* Increment by going to next */
1188                                 e2 = e2->next;
1189                         } else {
1190                                 /* Use e1 */
1191                                 e = e1;
1192                                 fullcmd = fullcmd1;
1193                                 e1++;
1194                         }
1195                         if ((fullcmd[0] != '_') && !strncasecmp(matchstr, fullcmd, strlen(matchstr))) {
1196                                 /* We contain the first part of one or more commands */
1197                                 /* Now, what we're supposed to return is the next word... */
1198                                 if (!ast_strlen_zero(word) && x>0) {
1199                                         res = e->cmda[x-1];
1200                                 } else {
1201                                         res = e->cmda[x];
1202                                 }
1203                                 if (res) {
1204                                         matchnum++;
1205                                         if (matchnum > state) {
1206                                                 if (lock)
1207                                                         ast_mutex_unlock(&clilock);
1208                                                 free(dup);
1209                                                 return strdup(res);
1210                                         }
1211                                 }
1212                         }
1213                         if (e->generator && !strncasecmp(matchstr, fullcmd, strlen(fullcmd))) {
1214                                 /* We have a command in its entirity within us -- theoretically only one
1215                                    command can have this occur */
1216                                 fullcmd = e->generator(matchstr, word, (!ast_strlen_zero(word) ? (x - 1) : (x)), state);
1217                                 if (fullcmd) {
1218                                         if (lock)
1219                                                 ast_mutex_unlock(&clilock);
1220                                         free(dup);
1221                                         return fullcmd;
1222                                 }
1223                         }
1224
1225                 }
1226                 if (lock)
1227                         ast_mutex_unlock(&clilock);
1228                 free(dup);
1229         }
1230         return NULL;
1231 }
1232
1233 char *ast_cli_generator(char *text, char *word, int state)
1234 {
1235         return __ast_cli_generator(text, word, state, 1);
1236 }
1237
1238 int ast_cli_command(int fd, char *s)
1239 {
1240         char *argv[AST_MAX_ARGS];
1241         struct ast_cli_entry *e;
1242         int x;
1243         char *dup;
1244         x = AST_MAX_ARGS;
1245         if ((dup = parse_args(s, &x, argv))) {
1246                 /* We need at least one entry, or ignore */
1247                 if (x > 0) {
1248                         ast_mutex_lock(&clilock);
1249                         e = find_cli(argv, 0);
1250                         if (e)
1251                                 e->inuse++;
1252                         ast_mutex_unlock(&clilock);
1253                         if (e) {
1254                                 switch(e->handler(fd, x, argv)) {
1255                                 case RESULT_SHOWUSAGE:
1256                                         ast_cli(fd, e->usage);
1257                                         break;
1258                                 }
1259                         } else
1260                                 ast_cli(fd, "No such command '%s' (type 'help' for help)\n", find_best(argv));
1261                         if (e) {
1262                                 ast_mutex_lock(&clilock);
1263                                 e->inuse--;
1264                                 ast_mutex_unlock(&clilock);
1265                         }
1266                 }
1267                 free(dup);
1268         } else {
1269                 ast_log(LOG_WARNING, "Out of memory\n");
1270                 return -1;
1271         }
1272         return 0;
1273 }