main/logger.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 1999 - 2006, Digium, Inc.
   5  *
   6  * Mark Spencer <markster@digium.com>
   7  *
   8  * See http://www.asterisk.org for more information about
   9  * the Asterisk project. Please do not directly contact
  10  * any of the maintainers of this project for assistance;
  11  * the project provides a web site, mailing lists and IRC
  12  * channels for your use.
  13  *
  14  * This program is free software, distributed under the terms of
  15  * the GNU General Public License Version 2. See the LICENSE file
  16  * at the top of the source tree.
  17  */
  18
  19 /*! \file
  20  *
  21  * \brief Asterisk Logger
  22  *
  23  * Logging routines
  24  *
  25  * \author Mark Spencer <markster@digium.com>
  26  */
  27
  28 /*
  29  * define _ASTERISK_LOGGER_H to prevent the inclusion of logger.h;
  30  * it redefines LOG_* which we need to define syslog_level_map.
  31  * later, we force the inclusion of logger.h again.
  32  */
  33 #define _ASTERISK_LOGGER_H
  34 #include "asterisk.h"
  35
  36 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  37
  38 /*
  39  * WARNING: additional #include directives should NOT be placed here, they
  40  * should be placed AFTER '#undef _ASTERISK_LOGGER_H' below
  41  */
  42 #include "asterisk/_private.h"
  43 #include "asterisk/paths.h"     /* use ast_config_AST_LOG_DIR */
  44 #include <signal.h>
  45 #include <time.h>
  46 #include <sys/stat.h>
  47 #include <fcntl.h>
  48 #ifdef HAVE_BKTR
  49 #include <execinfo.h>
  50 #define MAX_BACKTRACE_FRAMES 20
  51 #endif
  52
  53 #define SYSLOG_NAMES /* so we can map syslog facilities names to their numeric values,
  54                         from <syslog.h> which is included by logger.h */
  55 #include <syslog.h>
  56
  57 static int syslog_level_map[] = {
  58         LOG_DEBUG,
  59         LOG_INFO,    /* arbitrary equivalent of LOG_EVENT */
  60         LOG_NOTICE,
  61         LOG_WARNING,
  62         LOG_ERR,
  63         LOG_DEBUG,
  64         LOG_DEBUG
  65 };
  66
  67 #define SYSLOG_NLEVELS sizeof(syslog_level_map) / sizeof(int)
  68
  69 #undef _ASTERISK_LOGGER_H       /* now include logger.h */
  70 #include "asterisk/logger.h"
  71 #include "asterisk/lock.h"
  72 #include "asterisk/channel.h"
  73 #include "asterisk/config.h"
  74 #include "asterisk/term.h"
  75 #include "asterisk/cli.h"
  76 #include "asterisk/utils.h"
  77 #include "asterisk/manager.h"
  78 #include "asterisk/threadstorage.h"
  79 #include "asterisk/strings.h"
  80 #include "asterisk/pbx.h"
  81 #include "asterisk/app.h"
  82
  83 #if defined(__linux__) && !defined(__NR_gettid)
  84 #include <asm/unistd.h>
  85 #endif
  86
  87 #if defined(__linux__) && defined(__NR_gettid)
  88 #define GETTID() syscall(__NR_gettid)
  89 #else
  90 #define GETTID() getpid()
  91 #endif
  92
  93 static char dateformat[256] = "%b %e %T";               /* Original Asterisk Format */
  94
  95 static char queue_log_name[256] = QUEUELOG;
  96 static char exec_after_rotate[256] = "";
  97
  98 static int filesize_reload_needed;
  99 static int global_logmask = -1;
 100
 101 enum rotatestrategy {
 102         SEQUENTIAL = 1 << 0,     /* Original method - create a new file, in order */
 103         ROTATE = 1 << 1,         /* Rotate all files, such that the oldest file has the highest suffix */
 104         TIMESTAMP = 1 << 2,      /* Append the epoch timestamp onto the end of the archived file */
 105 } rotatestrategy = SEQUENTIAL;
 106
 107 static struct {
 108         unsigned int queue_log:1;
 109 } logfiles = { 1 };
 110
 111 static char hostname[MAXHOSTNAMELEN];
 112
 113 enum logtypes {
 114         LOGTYPE_SYSLOG,
 115         LOGTYPE_FILE,
 116         LOGTYPE_CONSOLE,
 117 };
 118
 119 struct logchannel {
 120         int logmask;                    /* What to log to this channel */
 121         int disabled;                   /* If this channel is disabled or not */
 122         int facility;                   /* syslog facility */
 123         enum logtypes type;             /* Type of log channel */
 124         FILE *fileptr;                  /* logfile logging file pointer */
 125         char filename[256];             /* Filename */
 126         AST_LIST_ENTRY(logchannel) list;
 127 };
 128
 129 static AST_RWLIST_HEAD_STATIC(logchannels, logchannel);
 130
 131 enum logmsgtypes {
 132         LOGMSG_NORMAL = 0,
 133         LOGMSG_VERBOSE,
 134 };
 135
 136 struct logmsg {
 137         enum logmsgtypes type;
 138         char date[256];
 139         int level;
 140         char file[80];
 141         int line;
 142         char function[80];
 143         long process_id;
 144         AST_LIST_ENTRY(logmsg) list;
 145         char str[0];
 146 };
 147
 148 static AST_LIST_HEAD_STATIC(logmsgs, logmsg);
 149 static pthread_t logthread = AST_PTHREADT_NULL;
 150 static ast_cond_t logcond;
 151 static int close_logger_thread;
 152
 153 static FILE *qlog;
 154
 155 /*! \brief Logging channels used in the Asterisk logging system */
 156 static char *levels[] = {
 157         "DEBUG",
 158         "---EVENT---",          /* no longer used */
 159         "NOTICE",
 160         "WARNING",
 161         "ERROR",
 162         "VERBOSE",
 163         "DTMF"
 164 };
 165
 166 /*! \brief Colors used in the console for logging */
 167 static int colors[] = {
 168         COLOR_BRGREEN,
 169         COLOR_BRBLUE,
 170         COLOR_YELLOW,
 171         COLOR_BRRED,
 172         COLOR_RED,
 173         COLOR_GREEN,
 174         COLOR_BRGREEN
 175 };
 176
 177 AST_THREADSTORAGE(verbose_buf);
 178 #define VERBOSE_BUF_INIT_SIZE   256
 179
 180 AST_THREADSTORAGE(log_buf);
 181 #define LOG_BUF_INIT_SIZE       256
 182
 183 static int make_components(const char *s, int lineno)
 184 {
 185         char *w;
 186         int res = 0;
 187         char *stringp = ast_strdupa(s);
 188
 189         while ((w = strsep(&stringp, ","))) {
 190                 w = ast_skip_blanks(w);
 191                 if (!strcasecmp(w, "error"))
 192                         res |= (1 << __LOG_ERROR);
 193                 else if (!strcasecmp(w, "warning"))
 194                         res |= (1 << __LOG_WARNING);
 195                 else if (!strcasecmp(w, "notice"))
 196                         res |= (1 << __LOG_NOTICE);
 197                 else if (!strcasecmp(w, "debug"))
 198                         res |= (1 << __LOG_DEBUG);
 199                 else if (!strcasecmp(w, "verbose"))
 200                         res |= (1 << __LOG_VERBOSE);
 201                 else if (!strcasecmp(w, "dtmf"))
 202                         res |= (1 << __LOG_DTMF);
 203                 else {
 204                         fprintf(stderr, "Logfile Warning: Unknown keyword '%s' at line %d of logger.conf\n", w, lineno);
 205                 }
 206         }
 207
 208         return res;
 209 }
 210
 211 static struct logchannel *make_logchannel(const char *channel, const char *components, int lineno)
 212 {
 213         struct logchannel *chan;
 214         char *facility;
 215 #ifndef SOLARIS
 216         CODE *cptr;
 217 #endif
 218
 219         if (ast_strlen_zero(channel) || !(chan = ast_calloc(1, sizeof(*chan))))
 220                 return NULL;
 221
 222         if (!strcasecmp(channel, "console")) {
 223                 chan->type = LOGTYPE_CONSOLE;
 224         } else if (!strncasecmp(channel, "syslog", 6)) {
 225                 /*
 226                 * syntax is:
 227                 *  syslog.facility => level,level,level
 228                 */
 229                 facility = strchr(channel, '.');
 230                 if (!facility++ || !facility) {
 231                         facility = "local0";
 232                 }
 233
 234 #ifndef SOLARIS
 235                 /*
 236                 * Walk through the list of facilitynames (defined in sys/syslog.h)
 237                 * to see if we can find the one we have been given
 238                 */
 239                 chan->facility = -1;
 240                 cptr = facilitynames;
 241                 while (cptr->c_name) {
 242                         if (!strcasecmp(facility, cptr->c_name)) {
 243                                 chan->facility = cptr->c_val;
 244                                 break;
 245                         }
 246                         cptr++;
 247                 }
 248 #else
 249                 chan->facility = -1;
 250                 if (!strcasecmp(facility, "kern"))
 251                         chan->facility = LOG_KERN;
 252                 else if (!strcasecmp(facility, "USER"))
 253                         chan->facility = LOG_USER;
 254                 else if (!strcasecmp(facility, "MAIL"))
 255                         chan->facility = LOG_MAIL;
 256                 else if (!strcasecmp(facility, "DAEMON"))
 257                         chan->facility = LOG_DAEMON;
 258                 else if (!strcasecmp(facility, "AUTH"))
 259                         chan->facility = LOG_AUTH;
 260                 else if (!strcasecmp(facility, "SYSLOG"))
 261                         chan->facility = LOG_SYSLOG;
 262                 else if (!strcasecmp(facility, "LPR"))
 263                         chan->facility = LOG_LPR;
 264                 else if (!strcasecmp(facility, "NEWS"))
 265                         chan->facility = LOG_NEWS;
 266                 else if (!strcasecmp(facility, "UUCP"))
 267                         chan->facility = LOG_UUCP;
 268                 else if (!strcasecmp(facility, "CRON"))
 269                         chan->facility = LOG_CRON;
 270                 else if (!strcasecmp(facility, "LOCAL0"))
 271                         chan->facility = LOG_LOCAL0;
 272                 else if (!strcasecmp(facility, "LOCAL1"))
 273                         chan->facility = LOG_LOCAL1;
 274                 else if (!strcasecmp(facility, "LOCAL2"))
 275                         chan->facility = LOG_LOCAL2;
 276                 else if (!strcasecmp(facility, "LOCAL3"))
 277                         chan->facility = LOG_LOCAL3;
 278                 else if (!strcasecmp(facility, "LOCAL4"))
 279                         chan->facility = LOG_LOCAL4;
 280                 else if (!strcasecmp(facility, "LOCAL5"))
 281                         chan->facility = LOG_LOCAL5;
 282                 else if (!strcasecmp(facility, "LOCAL6"))
 283                         chan->facility = LOG_LOCAL6;
 284                 else if (!strcasecmp(facility, "LOCAL7"))
 285                         chan->facility = LOG_LOCAL7;
 286 #endif /* Solaris */
 287
 288                 if (0 > chan->facility) {
 289                         fprintf(stderr, "Logger Warning: bad syslog facility in logger.conf\n");
 290                         ast_free(chan);
 291                         return NULL;
 292                 }
 293
 294                 chan->type = LOGTYPE_SYSLOG;
 295                 snprintf(chan->filename, sizeof(chan->filename), "%s", channel);
 296                 openlog("asterisk", LOG_PID, chan->facility);
 297         } else {
 298                 if (channel[0] == '/') {
 299                         if (!ast_strlen_zero(hostname)) {
 300                                 snprintf(chan->filename, sizeof(chan->filename), "%s.%s", channel, hostname);
 301                         } else {
 302                                 ast_copy_string(chan->filename, channel, sizeof(chan->filename));
 303                         }
 304                 }
 305
 306                 if (!ast_strlen_zero(hostname)) {
 307                         snprintf(chan->filename, sizeof(chan->filename), "%s/%s.%s", ast_config_AST_LOG_DIR, channel, hostname);
 308                 } else {
 309                         snprintf(chan->filename, sizeof(chan->filename), "%s/%s", ast_config_AST_LOG_DIR, channel);
 310                 }
 311                 chan->fileptr = fopen(chan->filename, "a");
 312                 if (!chan->fileptr) {
 313                         /* Can't log here, since we're called with a lock */
 314                         fprintf(stderr, "Logger Warning: Unable to open log file '%s': %s\n", chan->filename, strerror(errno));
 315                 }
 316                 chan->type = LOGTYPE_FILE;
 317         }
 318         chan->logmask = make_components(components, lineno);
 319         return chan;
 320 }
 321
 322 static void init_logger_chain(int locked)
 323 {
 324         struct logchannel *chan;
 325         struct ast_config *cfg;
 326         struct ast_variable *var;
 327         const char *s;
 328         struct ast_flags config_flags = { 0 };
 329
 330         if (!(cfg = ast_config_load2("logger.conf", "logger", config_flags)) || cfg == CONFIG_STATUS_FILEINVALID)
 331                 return;
 332
 333         /* delete our list of log channels */
 334         if (!locked)
 335                 AST_RWLIST_WRLOCK(&logchannels);
 336         while ((chan = AST_RWLIST_REMOVE_HEAD(&logchannels, list)))
 337                 ast_free(chan);
 338         if (!locked)
 339                 AST_RWLIST_UNLOCK(&logchannels);
 340
 341         global_logmask = 0;
 342         errno = 0;
 343         /* close syslog */
 344         closelog();
 345
 346         /* If no config file, we're fine, set default options. */
 347         if (!cfg) {
 348                 if (errno)
 349                         fprintf(stderr, "Unable to open logger.conf: %s; default settings will be used.\n", strerror(errno));
 350                 else
 351                         fprintf(stderr, "Errors detected in logger.conf: see above; default settings will be used.\n");
 352                 if (!(chan = ast_calloc(1, sizeof(*chan))))
 353                         return;
 354                 chan->type = LOGTYPE_CONSOLE;
 355                 chan->logmask = 28; /*warning,notice,error */
 356                 if (!locked)
 357                         AST_RWLIST_WRLOCK(&logchannels);
 358                 AST_RWLIST_INSERT_HEAD(&logchannels, chan, list);
 359                 if (!locked)
 360                         AST_RWLIST_UNLOCK(&logchannels);
 361                 global_logmask |= chan->logmask;
 362                 return;
 363         }
 364
 365         if ((s = ast_variable_retrieve(cfg, "general", "appendhostname"))) {
 366                 if (ast_true(s)) {
 367                         if (gethostname(hostname, sizeof(hostname) - 1)) {
 368                                 ast_copy_string(hostname, "unknown", sizeof(hostname));
 369                                 fprintf(stderr, "What box has no hostname???\n");
 370                         }
 371                 } else
 372                         hostname[0] = '\0';
 373         } else
 374                 hostname[0] = '\0';
 375         if ((s = ast_variable_retrieve(cfg, "general", "dateformat")))
 376                 ast_copy_string(dateformat, s, sizeof(dateformat));
 377         else
 378                 ast_copy_string(dateformat, "%b %e %T", sizeof(dateformat));
 379         if ((s = ast_variable_retrieve(cfg, "general", "queue_log")))
 380                 logfiles.queue_log = ast_true(s);
 381         if ((s = ast_variable_retrieve(cfg, "general", "queue_log_name")))
 382                 ast_copy_string(queue_log_name, s, sizeof(queue_log_name));
 383         if ((s = ast_variable_retrieve(cfg, "general", "exec_after_rotate")))
 384                 ast_copy_string(exec_after_rotate, s, sizeof(exec_after_rotate));
 385         if ((s = ast_variable_retrieve(cfg, "general", "rotatestrategy"))) {
 386                 if (strcasecmp(s, "timestamp") == 0)
 387                         rotatestrategy = TIMESTAMP;
 388                 else if (strcasecmp(s, "rotate") == 0)
 389                         rotatestrategy = ROTATE;
 390                 else if (strcasecmp(s, "sequential") == 0)
 391                         rotatestrategy = SEQUENTIAL;
 392                 else
 393                         fprintf(stderr, "Unknown rotatestrategy: %s\n", s);
 394         } else {
 395                 if ((s = ast_variable_retrieve(cfg, "general", "rotatetimestamp"))) {
 396                         rotatestrategy = ast_true(s) ? TIMESTAMP : SEQUENTIAL;
 397                         fprintf(stderr, "rotatetimestamp option has been deprecated.  Please use rotatestrategy instead.\n");
 398                 }
 399         }
 400
 401         if (!locked)
 402                 AST_RWLIST_WRLOCK(&logchannels);
 403         var = ast_variable_browse(cfg, "logfiles");
 404         for (; var; var = var->next) {
 405                 if (!(chan = make_logchannel(var->name, var->value, var->lineno)))
 406                         continue;
 407                 AST_RWLIST_INSERT_HEAD(&logchannels, chan, list);
 408                 global_logmask |= chan->logmask;
 409         }
 410         if (!locked)
 411                 AST_RWLIST_UNLOCK(&logchannels);
 412
 413         ast_config_destroy(cfg);
 414 }
 415
 416 void ast_child_verbose(int level, const char *fmt, ...)
 417 {
 418         char *msg = NULL, *emsg = NULL, *sptr, *eptr;
 419         va_list ap, aq;
 420         int size;
 421
 422         /* Don't bother, if the level isn't that high */
 423         if (option_verbose < level) {
 424                 return;
 425         }
 426
 427         va_start(ap, fmt);
 428         va_copy(aq, ap);
 429         if ((size = vsnprintf(msg, 0, fmt, ap)) < 0) {
 430                 va_end(ap);
 431                 va_end(aq);
 432                 return;
 433         }
 434         va_end(ap);
 435
 436         if (!(msg = ast_malloc(size + 1))) {
 437                 va_end(aq);
 438                 return;
 439         }
 440
 441         vsnprintf(msg, size + 1, fmt, aq);
 442         va_end(aq);
 443
 444         if (!(emsg = ast_malloc(size * 2 + 1))) {
 445                 ast_free(msg);
 446                 return;
 447         }
 448
 449         for (sptr = msg, eptr = emsg; ; sptr++) {
 450                 if (*sptr == '"') {
 451                         *eptr++ = '\\';
 452                 }
 453                 *eptr++ = *sptr;
 454                 if (*sptr == '\0') {
 455                         break;
 456                 }
 457         }
 458         ast_free(msg);
 459
 460         fprintf(stdout, "verbose \"%s\" %d\n", emsg, level);
 461         fflush(stdout);
 462         ast_free(emsg);
 463 }
 464
 465 void ast_queue_log(const char *queuename, const char *callid, const char *agent, const char *event, const char *fmt, ...)
 466 {
 467         va_list ap;
 468         char qlog_msg[8192];
 469         int qlog_len;
 470         char time_str[16];
 471
 472         if (ast_check_realtime("queue_log")) {
 473                 va_start(ap, fmt);
 474                 vsnprintf(qlog_msg, sizeof(qlog_msg), fmt, ap);
 475                 va_end(ap);
 476                 snprintf(time_str, sizeof(time_str), "%ld", (long)time(NULL));
 477                 ast_store_realtime("queue_log", "time", time_str,
 478                                                 "callid", callid,
 479                                                 "queuename", queuename,
 480                                                 "agent", agent,
 481                                                 "event", event,
 482                                                 "data", qlog_msg,
 483                                                 SENTINEL);
 484         } else {
 485                 if (qlog) {
 486                         va_start(ap, fmt);
 487                         qlog_len = snprintf(qlog_msg, sizeof(qlog_msg), "%ld|%s|%s|%s|%s|", (long)time(NULL), callid, queuename, agent, event);
 488                         vsnprintf(qlog_msg + qlog_len, sizeof(qlog_msg) - qlog_len, fmt, ap);
 489                         va_end(ap);
 490                 }
 491                 AST_RWLIST_RDLOCK(&logchannels);
 492                 if (qlog) {
 493                         fprintf(qlog, "%s\n", qlog_msg);
 494                         fflush(qlog);
 495                 }
 496                 AST_RWLIST_UNLOCK(&logchannels);
 497         }
 498 }
 499
 500 static int rotate_file(const char *filename)
 501 {
 502         char old[PATH_MAX];
 503         char new[PATH_MAX];
 504         int x, y, which, found, res = 0, fd;
 505         char *suffixes[4] = { "", ".gz", ".bz2", ".Z" };
 506
 507         switch (rotatestrategy) {
 508         case SEQUENTIAL:
 509                 for (x = 0; ; x++) {
 510                         snprintf(new, sizeof(new), "%s.%d", filename, x);
 511                         fd = open(new, O_RDONLY);
 512                         if (fd > -1)
 513                                 close(fd);
 514                         else
 515                                 break;
 516                 }
 517                 if (rename(filename, new)) {
 518                         fprintf(stderr, "Unable to rename file '%s' to '%s'\n", filename, new);
 519                         res = -1;
 520                 }
 521                 break;
 522         case TIMESTAMP:
 523                 snprintf(new, sizeof(new), "%s.%ld", filename, (long)time(NULL));
 524                 if (rename(filename, new)) {
 525                         fprintf(stderr, "Unable to rename file '%s' to '%s'\n", filename, new);
 526                         res = -1;
 527                 }
 528                 break;
 529         case ROTATE:
 530                 /* Find the next empty slot, including a possible suffix */
 531                 for (x = 0; ; x++) {
 532                         found = 0;
 533                         for (which = 0; which < ARRAY_LEN(suffixes); which++) {
 534                                 snprintf(new, sizeof(new), "%s.%d%s", filename, x, suffixes[which]);
 535                                 fd = open(new, O_RDONLY);
 536                                 if (fd > -1) {
 537                                         close(fd);
 538                                         found = 1;
 539                                         break;
 540                                 }
 541                         }
 542                         if (!found) {
 543                                 break;
 544                         }
 545                 }
 546
 547                 /* Found an empty slot */
 548                 for (y = x; y > 0; y--) {
 549                         for (which = 0; which < ARRAY_LEN(suffixes); which++) {
 550                                 snprintf(old, sizeof(old), "%s.%d%s", filename, y - 1, suffixes[which]);
 551                                 fd = open(old, O_RDONLY);
 552                                 if (fd > -1) {
 553                                         /* Found the right suffix */
 554                                         close(fd);
 555                                         snprintf(new, sizeof(new), "%s.%d%s", filename, y, suffixes[which]);
 556                                         if (rename(old, new)) {
 557                                                 fprintf(stderr, "Unable to rename file '%s' to '%s'\n", old, new);
 558                                                 res = -1;
 559                                         }
 560                                         break;
 561                                 }
 562                         }
 563                 }
 564
 565                 /* Finally, rename the current file */
 566                 snprintf(new, sizeof(new), "%s.0", filename);
 567                 if (rename(filename, new)) {
 568                         fprintf(stderr, "Unable to rename file '%s' to '%s'\n", filename, new);
 569                         res = -1;
 570                 }
 571         }
 572
 573         if (!ast_strlen_zero(exec_after_rotate)) {
 574                 struct ast_channel *c = ast_channel_alloc(0, 0, "", "", "", "", "", 0, "Logger/rotate");
 575                 char buf[512];
 576                 pbx_builtin_setvar_helper(c, "filename", filename);
 577                 pbx_substitute_variables_helper(c, exec_after_rotate, buf, sizeof(buf));
 578                 if (ast_safe_system(buf) != -1) {
 579                         ast_log(LOG_WARNING, "error executing '%s'\n", buf);
 580                 }
 581                 c = ast_channel_release(c);
 582         }
 583         return res;
 584 }
 585
 586 static int reload_logger(int rotate)
 587 {
 588         char old[PATH_MAX] = "";
 589         int queue_rotate = rotate;
 590         struct logchannel *f;
 591         int res = 0;
 592         struct stat st;
 593
 594         AST_RWLIST_WRLOCK(&logchannels);
 595
 596         if (qlog) {
 597                 if (rotate < 0) {
 598                         /* Check filesize - this one typically doesn't need an auto-rotate */
 599                         snprintf(old, sizeof(old), "%s/%s", ast_config_AST_LOG_DIR, queue_log_name);
 600                         if (stat(old, &st) != 0 || st.st_size > 0x40000000) { /* Arbitrarily, 1 GB */
 601                                 fclose(qlog);
 602                                 qlog = NULL;
 603                         } else
 604                                 queue_rotate = 0;
 605                 } else {
 606                         fclose(qlog);
 607                         qlog = NULL;
 608                 }
 609         } else
 610                 queue_rotate = 0;
 611
 612         ast_mkdir(ast_config_AST_LOG_DIR, 0777);
 613
 614         AST_RWLIST_TRAVERSE(&logchannels, f, list) {
 615                 if (f->disabled) {
 616                         f->disabled = 0;        /* Re-enable logging at reload */
 617                         manager_event(EVENT_FLAG_SYSTEM, "LogChannel", "Channel: %s\r\nEnabled: Yes\r\n", f->filename);
 618                 }
 619                 if (f->fileptr && (f->fileptr != stdout) && (f->fileptr != stderr)) {
 620                         fclose(f->fileptr);     /* Close file */
 621                         f->fileptr = NULL;
 622                         if (rotate)
 623                                 rotate_file(f->filename);
 624                 }
 625         }
 626
 627         filesize_reload_needed = 0;
 628
 629         init_logger_chain(1 /* locked */);
 630
 631         if (logfiles.queue_log) {
 632                 snprintf(old, sizeof(old), "%s/%s", ast_config_AST_LOG_DIR, queue_log_name);
 633                 if (queue_rotate)
 634                         rotate_file(old);
 635
 636                 qlog = fopen(old, "a");
 637                 if (qlog) {
 638                         AST_RWLIST_UNLOCK(&logchannels);
 639                         ast_queue_log("NONE", "NONE", "NONE", "CONFIGRELOAD", "%s", "");
 640                         AST_RWLIST_WRLOCK(&logchannels);
 641                         ast_verb(1, "Asterisk Queue Logger restarted\n");
 642                 } else {
 643                         ast_log(LOG_ERROR, "Unable to create queue log: %s\n", strerror(errno));
 644                         res = -1;
 645                 }
 646         }
 647
 648         AST_RWLIST_UNLOCK(&logchannels);
 649
 650         return res;
 651 }
 652
 653 /*! \brief Reload the logger module without rotating log files (also used from loader.c during
 654         a full Asterisk reload) */
 655 int logger_reload(void)
 656 {
 657         if(reload_logger(0))
 658                 return RESULT_FAILURE;
 659         return RESULT_SUCCESS;
 660 }
 661
 662 static char *handle_logger_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 663 {
 664         switch (cmd) {
 665         case CLI_INIT:
 666                 e->command = "logger reload";
 667                 e->usage =
 668                         "Usage: logger reload\n"
 669                         "       Reloads the logger subsystem state.  Use after restarting syslogd(8) if you are using syslog logging.\n";
 670                 return NULL;
 671         case CLI_GENERATE:
 672                 return NULL;
 673         }
 674         if (reload_logger(0)) {
 675                 ast_cli(a->fd, "Failed to reload the logger\n");
 676                 return CLI_FAILURE;
 677         }
 678         return CLI_SUCCESS;
 679 }
 680
 681 static char *handle_logger_rotate(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 682 {
 683         switch (cmd) {
 684         case CLI_INIT:
 685                 e->command = "logger rotate";
 686                 e->usage =
 687                         "Usage: logger rotate\n"
 688                         "       Rotates and Reopens the log files.\n";
 689                 return NULL;
 690         case CLI_GENERATE:
 691                 return NULL;
 692         }
 693         if (reload_logger(1)) {
 694                 ast_cli(a->fd, "Failed to reload the logger and rotate log files\n");
 695                 return CLI_FAILURE;
 696         }
 697         return CLI_SUCCESS;
 698 }
 699
 700 static char *handle_logger_set_level(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 701 {
 702         int x;
 703         int state;
 704         int level = -1;
 705
 706         switch (cmd) {
 707         case CLI_INIT:
 708                 e->command = "logger set level";
 709                 e->usage =
 710                         "Usage: logger set level\n"
 711                         "       Set a specific log level to enabled/disabled for this console.\n";
 712                 return NULL;
 713         case CLI_GENERATE:
 714                 return NULL;
 715         }
 716
 717         if (a->argc < 5)
 718                 return CLI_SHOWUSAGE;
 719
 720         for (x = 0; x <= NUMLOGLEVELS; x++) {
 721                 if (!strcasecmp(a->argv[3], levels[x])) {
 722                         level = x;
 723                         break;
 724                 }
 725         }
 726
 727         state = ast_true(a->argv[4]) ? 1 : 0;
 728
 729         if (level != -1) {
 730                 ast_console_toggle_loglevel(a->fd, level, state);
 731                 ast_cli(a->fd, "Logger status for '%s' has been set to '%s'.\n", levels[level], state ? "on" : "off");
 732         } else
 733                 return CLI_SHOWUSAGE;
 734
 735         return CLI_SUCCESS;
 736 }
 737
 738 /*! \brief CLI command to show logging system configuration */
 739 static char *handle_logger_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 740 {
 741 #define FORMATL "%-35.35s %-8.8s %-9.9s "
 742         struct logchannel *chan;
 743         switch (cmd) {
 744         case CLI_INIT:
 745                 e->command = "logger show channels";
 746                 e->usage =
 747                         "Usage: logger show channels\n"
 748                         "       List configured logger channels.\n";
 749                 return NULL;
 750         case CLI_GENERATE:
 751                 return NULL;
 752         }
 753         ast_cli(a->fd, FORMATL, "Channel", "Type", "Status");
 754         ast_cli(a->fd, "Configuration\n");
 755         ast_cli(a->fd, FORMATL, "-------", "----", "------");
 756         ast_cli(a->fd, "-------------\n");
 757         AST_RWLIST_RDLOCK(&logchannels);
 758         AST_RWLIST_TRAVERSE(&logchannels, chan, list) {
 759                 ast_cli(a->fd, FORMATL, chan->filename, chan->type == LOGTYPE_CONSOLE ? "Console" : (chan->type == LOGTYPE_SYSLOG ? "Syslog" : "File"),
 760                         chan->disabled ? "Disabled" : "Enabled");
 761                 ast_cli(a->fd, " - ");
 762                 if (chan->logmask & (1 << __LOG_DEBUG))
 763                         ast_cli(a->fd, "Debug ");
 764                 if (chan->logmask & (1 << __LOG_DTMF))
 765                         ast_cli(a->fd, "DTMF ");
 766                 if (chan->logmask & (1 << __LOG_VERBOSE))
 767                         ast_cli(a->fd, "Verbose ");
 768                 if (chan->logmask & (1 << __LOG_WARNING))
 769                         ast_cli(a->fd, "Warning ");
 770                 if (chan->logmask & (1 << __LOG_NOTICE))
 771                         ast_cli(a->fd, "Notice ");
 772                 if (chan->logmask & (1 << __LOG_ERROR))
 773                         ast_cli(a->fd, "Error ");
 774                 ast_cli(a->fd, "\n");
 775         }
 776         AST_RWLIST_UNLOCK(&logchannels);
 777         ast_cli(a->fd, "\n");
 778
 779         return CLI_SUCCESS;
 780 }
 781
 782 struct verb {
 783         void (*verboser)(const char *string);
 784         AST_LIST_ENTRY(verb) list;
 785 };
 786
 787 static AST_RWLIST_HEAD_STATIC(verbosers, verb);
 788
 789 static struct ast_cli_entry cli_logger[] = {
 790         AST_CLI_DEFINE(handle_logger_show_channels, "List configured log channels"),
 791         AST_CLI_DEFINE(handle_logger_reload, "Reopens the log files"),
 792         AST_CLI_DEFINE(handle_logger_rotate, "Rotates and reopens the log files"),
 793         AST_CLI_DEFINE(handle_logger_set_level, "Enables/Disables a specific logging level for this console")
 794 };
 795
 796 static int handle_SIGXFSZ(int sig)
 797 {
 798         /* Indicate need to reload */
 799         filesize_reload_needed = 1;
 800         return 0;
 801 }
 802
 803 static void ast_log_vsyslog(int level, const char *file, int line, const char *function, char *str, long pid)
 804 {
 805         char buf[BUFSIZ];
 806
 807         if (level >= SYSLOG_NLEVELS) {
 808                 /* we are locked here, so cannot ast_log() */
 809                 fprintf(stderr, "ast_log_vsyslog called with bogus level: %d\n", level);
 810                 return;
 811         }
 812
 813         if (level == __LOG_VERBOSE) {
 814                 snprintf(buf, sizeof(buf), "VERBOSE[%ld]: %s", pid, str);
 815                 level = __LOG_DEBUG;
 816         } else if (level == __LOG_DTMF) {
 817                 snprintf(buf, sizeof(buf), "DTMF[%ld]: %s", pid, str);
 818                 level = __LOG_DEBUG;
 819         } else {
 820                 snprintf(buf, sizeof(buf), "%s[%ld]: %s:%d in %s: %s",
 821                          levels[level], pid, file, line, function, str);
 822         }
 823
 824         term_strip(buf, buf, strlen(buf) + 1);
 825         syslog(syslog_level_map[level], "%s", buf);
 826 }
 827
 828 /*! \brief Print a normal log message to the channels */
 829 static void logger_print_normal(struct logmsg *logmsg)
 830 {
 831         struct logchannel *chan = NULL;
 832         char buf[BUFSIZ];
 833
 834         AST_RWLIST_RDLOCK(&logchannels);
 835
 836         if (!AST_RWLIST_EMPTY(&logchannels)) {
 837                 AST_RWLIST_TRAVERSE(&logchannels, chan, list) {
 838                         /* If the channel is disabled, then move on to the next one */
 839                         if (chan->disabled)
 840                                 continue;
 841                         /* Check syslog channels */
 842                         if (chan->type == LOGTYPE_SYSLOG && (chan->logmask & (1 << logmsg->level))) {
 843                                 ast_log_vsyslog(logmsg->level, logmsg->file, logmsg->line, logmsg->function, logmsg->str, logmsg->process_id);
 844                         /* Console channels */
 845                         } else if (chan->type == LOGTYPE_CONSOLE && (chan->logmask & (1 << logmsg->level))) {
 846                                 char linestr[128];
 847                                 char tmp1[80], tmp2[80], tmp3[80], tmp4[80];
 848
 849                                 /* If the level is verbose, then skip it */
 850                                 if (logmsg->level == __LOG_VERBOSE)
 851                                         continue;
 852
 853                                 /* Turn the numerical line number into a string */
 854                                 snprintf(linestr, sizeof(linestr), "%d", logmsg->line);
 855                                 /* Build string to print out */
 856                                 snprintf(buf, sizeof(buf), "[%s] %s[%ld]: %s:%s %s: %s",
 857                                          logmsg->date,
 858                                          term_color(tmp1, levels[logmsg->level], colors[logmsg->level], 0, sizeof(tmp1)),
 859                                          logmsg->process_id,
 860                                          term_color(tmp2, logmsg->file, COLOR_BRWHITE, 0, sizeof(tmp2)),
 861                                          term_color(tmp3, linestr, COLOR_BRWHITE, 0, sizeof(tmp3)),
 862                                          term_color(tmp4, logmsg->function, COLOR_BRWHITE, 0, sizeof(tmp4)),
 863                                          logmsg->str);
 864                                 /* Print out */
 865                                 ast_console_puts_mutable(buf, logmsg->level);
 866                         /* File channels */
 867                         } else if (chan->type == LOGTYPE_FILE && (chan->logmask & (1 << logmsg->level))) {
 868                                 int res = 0;
 869
 870                                 /* If no file pointer exists, skip it */
 871                                 if (!chan->fileptr)
 872                                         continue;
 873
 874                                 /* Print out to the file */
 875                                 res = fprintf(chan->fileptr, "[%s] %s[%ld] %s: %s",
 876                                               logmsg->date, levels[logmsg->level], logmsg->process_id, logmsg->file, logmsg->str);
 877                                 if (res <= 0 && !ast_strlen_zero(logmsg->str)) {
 878                                         fprintf(stderr, "**** Asterisk Logging Error: ***********\n");
 879                                         if (errno == ENOMEM || errno == ENOSPC)
 880                                                 fprintf(stderr, "Asterisk logging error: Out of disk space, can't log to log file %s\n", chan->filename);
 881                                         else
 882                                                 fprintf(stderr, "Logger Warning: Unable to write to log file '%s': %s (disabled)\n", chan->filename, strerror(errno));
 883                                         manager_event(EVENT_FLAG_SYSTEM, "LogChannel", "Channel: %s\r\nEnabled: No\r\nReason: %d - %s\r\n", chan->filename, errno, strerror(errno));
 884                                         chan->disabled = 1;
 885                                 } else if (res > 0) {
 886                                         fflush(chan->fileptr);
 887                                 }
 888                         }
 889                 }
 890         } else if (logmsg->level != __LOG_VERBOSE) {
 891                 fputs(logmsg->str, stdout);
 892         }
 893
 894         AST_RWLIST_UNLOCK(&logchannels);
 895
 896         /* If we need to reload because of the file size, then do so */
 897         if (filesize_reload_needed) {
 898                 reload_logger(-1);
 899                 ast_verb(1, "Rotated Logs Per SIGXFSZ (Exceeded file size limit)\n");
 900         }
 901
 902         return;
 903 }
 904
 905 /*! \brief Print a verbose message to the verbosers */
 906 static void logger_print_verbose(struct logmsg *logmsg)
 907 {
 908         struct verb *v = NULL;
 909
 910         /* Iterate through the list of verbosers and pass them the log message string */
 911         AST_RWLIST_RDLOCK(&verbosers);
 912         AST_RWLIST_TRAVERSE(&verbosers, v, list)
 913                 v->verboser(logmsg->str);
 914         AST_RWLIST_UNLOCK(&verbosers);
 915
 916         return;
 917 }
 918
 919 /*! \brief Actual logging thread */
 920 static void *logger_thread(void *data)
 921 {
 922         struct logmsg *next = NULL, *msg = NULL;
 923
 924         for (;;) {
 925                 /* We lock the message list, and see if any message exists... if not we wait on the condition to be signalled */
 926                 AST_LIST_LOCK(&logmsgs);
 927                 if (AST_LIST_EMPTY(&logmsgs)) {
 928                         if (close_logger_thread) {
 929                                 break;
 930                         } else {
 931                                 ast_cond_wait(&logcond, &logmsgs.lock);
 932                         }
 933                 }
 934                 next = AST_LIST_FIRST(&logmsgs);
 935                 AST_LIST_HEAD_INIT_NOLOCK(&logmsgs);
 936                 AST_LIST_UNLOCK(&logmsgs);
 937
 938                 /* Otherwise go through and process each message in the order added */
 939                 while ((msg = next)) {
 940                         /* Get the next entry now so that we can free our current structure later */
 941                         next = AST_LIST_NEXT(msg, list);
 942
 943                         /* Depending on the type, send it to the proper function */
 944                         if (msg->type == LOGMSG_NORMAL)
 945                                 logger_print_normal(msg);
 946                         else if (msg->type == LOGMSG_VERBOSE)
 947                                 logger_print_verbose(msg);
 948
 949                         /* Free the data since we are done */
 950                         ast_free(msg);
 951                 }
 952
 953                 /* If we should stop, then stop */
 954                 if (close_logger_thread)
 955                         break;
 956         }
 957
 958         return NULL;
 959 }
 960
 961 int init_logger(void)
 962 {
 963         char tmp[256];
 964         int res = 0;
 965
 966         /* auto rotate if sig SIGXFSZ comes a-knockin */
 967         (void) signal(SIGXFSZ, (void *) handle_SIGXFSZ);
 968
 969         /* start logger thread */
 970         ast_cond_init(&logcond, NULL);
 971         if (ast_pthread_create(&logthread, NULL, logger_thread, NULL) < 0) {
 972                 ast_cond_destroy(&logcond);
 973                 return -1;
 974         }
 975
 976         /* register the logger cli commands */
 977         ast_cli_register_multiple(cli_logger, ARRAY_LEN(cli_logger));
 978
 979         ast_mkdir(ast_config_AST_LOG_DIR, 0777);
 980
 981         /* create log channels */
 982         init_logger_chain(0 /* locked */);
 983
 984         if (logfiles.queue_log) {
 985                 snprintf(tmp, sizeof(tmp), "%s/%s", ast_config_AST_LOG_DIR, queue_log_name);
 986                 qlog = fopen(tmp, "a");
 987                 ast_queue_log("NONE", "NONE", "NONE", "QUEUESTART", "%s", "");
 988         }
 989         return res;
 990 }
 991
 992 void close_logger(void)
 993 {
 994         struct logchannel *f = NULL;
 995
 996         /* Stop logger thread */
 997         AST_LIST_LOCK(&logmsgs);
 998         close_logger_thread = 1;
 999         ast_cond_signal(&logcond);
1000         AST_LIST_UNLOCK(&logmsgs);
1001
1002         if (logthread != AST_PTHREADT_NULL)
1003                 pthread_join(logthread, NULL);
1004
1005         AST_RWLIST_WRLOCK(&logchannels);
1006
1007         if (qlog) {
1008                 fclose(qlog);
1009                 qlog = NULL;
1010         }
1011
1012         AST_RWLIST_TRAVERSE(&logchannels, f, list) {
1013                 if (f->fileptr && (f->fileptr != stdout) && (f->fileptr != stderr)) {
1014                         fclose(f->fileptr);
1015                         f->fileptr = NULL;
1016                 }
1017         }
1018
1019         closelog(); /* syslog */
1020
1021         AST_RWLIST_UNLOCK(&logchannels);
1022
1023         return;
1024 }
1025
1026 /*!
1027  * \brief send log messages to syslog and/or the console
1028  */
1029 void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...)
1030 {
1031         struct logmsg *logmsg = NULL;
1032         struct ast_str *buf = NULL;
1033         struct ast_tm tm;
1034         struct timeval now = ast_tvnow();
1035         int res = 0;
1036         va_list ap;
1037
1038         if (!(buf = ast_str_thread_get(&log_buf, LOG_BUF_INIT_SIZE)))
1039                 return;
1040
1041         if (AST_RWLIST_EMPTY(&logchannels)) {
1042                 /*
1043                  * we don't have the logger chain configured yet,
1044                  * so just log to stdout
1045                  */
1046                 if (level != __LOG_VERBOSE) {
1047                         int result;
1048                         va_start(ap, fmt);
1049                         result = ast_str_set_va(&buf, BUFSIZ, fmt, ap); /* XXX BUFSIZ ? */
1050                         va_end(ap);
1051                         if (result != AST_DYNSTR_BUILD_FAILED) {
1052                                 term_filter_escapes(ast_str_buffer(buf));
1053                                 fputs(ast_str_buffer(buf), stdout);
1054                         }
1055                 }
1056                 return;
1057         }
1058
1059         /* don't display LOG_DEBUG messages unless option_verbose _or_ option_debug
1060            are non-zero; LOG_DEBUG messages can still be displayed if option_debug
1061            is zero, if option_verbose is non-zero (this allows for 'level zero'
1062            LOG_DEBUG messages to be displayed, if the logmask on any channel
1063            allows it)
1064         */
1065         if (!option_verbose && !option_debug && (level == __LOG_DEBUG))
1066                 return;
1067
1068         /* Ignore anything that never gets logged anywhere */
1069         if (!(global_logmask & (1 << level)))
1070                 return;
1071
1072         /* Build string */
1073         va_start(ap, fmt);
1074         res = ast_str_set_va(&buf, BUFSIZ, fmt, ap);
1075         va_end(ap);
1076
1077         /* If the build failed, then abort and free this structure */
1078         if (res == AST_DYNSTR_BUILD_FAILED)
1079                 return;
1080
1081         /* Create a new logging message */
1082         if (!(logmsg = ast_calloc(1, sizeof(*logmsg) + res + 1)))
1083                 return;
1084
1085         /* Copy string over */
1086         strcpy(logmsg->str, ast_str_buffer(buf));
1087
1088         /* Set type to be normal */
1089         logmsg->type = LOGMSG_NORMAL;
1090
1091         /* Create our date/time */
1092         ast_localtime(&now, &tm, NULL);
1093         ast_strftime(logmsg->date, sizeof(logmsg->date), dateformat, &tm);
1094
1095         /* Copy over data */
1096         logmsg->level = level;
1097         logmsg->line = line;
1098         ast_copy_string(logmsg->file, file, sizeof(logmsg->file));
1099         ast_copy_string(logmsg->function, function, sizeof(logmsg->function));
1100         logmsg->process_id = (long) GETTID();
1101
1102         /* If the logger thread is active, append it to the tail end of the list - otherwise skip that step */
1103         if (logthread != AST_PTHREADT_NULL) {
1104                 AST_LIST_LOCK(&logmsgs);
1105                 AST_LIST_INSERT_TAIL(&logmsgs, logmsg, list);
1106                 ast_cond_signal(&logcond);
1107                 AST_LIST_UNLOCK(&logmsgs);
1108         } else {
1109                 logger_print_normal(logmsg);
1110                 ast_free(logmsg);
1111         }
1112
1113         return;
1114 }
1115
1116 #ifdef HAVE_BKTR
1117
1118 struct ast_bt *ast_bt_create(void)
1119 {
1120         struct ast_bt *bt = ast_calloc(1, sizeof(*bt));
1121         if (!bt) {
1122                 ast_log(LOG_ERROR, "Unable to allocate memory for backtrace structure!\n");
1123                 return NULL;
1124         }
1125
1126         bt->alloced = 1;
1127
1128         ast_bt_get_addresses(bt);
1129
1130         return bt;
1131 }
1132
1133 int ast_bt_get_addresses(struct ast_bt *bt)
1134 {
1135         bt->num_frames = backtrace(bt->addresses, AST_MAX_BT_FRAMES);
1136
1137         return 0;
1138 }
1139
1140 void *ast_bt_destroy(struct ast_bt *bt)
1141 {
1142         if (bt->alloced) {
1143                 ast_free(bt);
1144         }
1145
1146         return NULL;
1147 }
1148
1149 #endif /* HAVE_BKTR */
1150
1151 void ast_backtrace(void)
1152 {
1153 #ifdef HAVE_BKTR
1154         struct ast_bt *bt;
1155         int i = 0;
1156         char **strings;
1157
1158         if (!(bt = ast_bt_create())) {
1159                 ast_log(LOG_WARNING, "Unable to allocate space for backtrace structure\n");
1160                 return;
1161         }
1162
1163         if ((strings = backtrace_symbols(bt->addresses, bt->num_frames))) {
1164                 ast_debug(1, "Got %d backtrace record%c\n", bt->num_frames, bt->num_frames != 1 ? 's' : ' ');
1165                 for (i = 0; i < bt->num_frames; i++) {
1166                         ast_log(LOG_DEBUG, "#%d: [%p] %s\n", i, bt->addresses[i], strings[i]);
1167                 }
1168                 free(strings);
1169         } else {
1170                 ast_debug(1, "Could not allocate memory for backtrace\n");
1171         }
1172         ast_bt_destroy(bt);
1173 #else
1174         ast_log(LOG_WARNING, "Must run configure with '--with-execinfo' for stack backtraces.\n");
1175 #endif
1176 }
1177
1178 void __ast_verbose_ap(const char *file, int line, const char *func, const char *fmt, va_list ap)
1179 {
1180         struct logmsg *logmsg = NULL;
1181         struct ast_str *buf = NULL;
1182         int res = 0;
1183
1184         if (!(buf = ast_str_thread_get(&verbose_buf, VERBOSE_BUF_INIT_SIZE)))
1185                 return;
1186
1187         if (ast_opt_timestamp) {
1188                 struct timeval now;
1189                 struct ast_tm tm;
1190                 char date[40];
1191                 char *datefmt;
1192
1193                 now = ast_tvnow();
1194                 ast_localtime(&now, &tm, NULL);
1195                 ast_strftime(date, sizeof(date), dateformat, &tm);
1196                 datefmt = alloca(strlen(date) + 3 + strlen(fmt) + 1);
1197                 sprintf(datefmt, "%c[%s] %s", 127, date, fmt);
1198                 fmt = datefmt;
1199         } else {
1200                 char *tmp = alloca(strlen(fmt) + 2);
1201                 sprintf(tmp, "%c%s", 127, fmt);
1202                 fmt = tmp;
1203         }
1204
1205         /* Build string */
1206         res = ast_str_set_va(&buf, 0, fmt, ap);
1207
1208         /* If the build failed then we can drop this allocated message */
1209         if (res == AST_DYNSTR_BUILD_FAILED)
1210                 return;
1211
1212         if (!(logmsg = ast_calloc(1, sizeof(*logmsg) + res + 1)))
1213                 return;
1214
1215         strcpy(logmsg->str, ast_str_buffer(buf));
1216
1217         ast_log(__LOG_VERBOSE, file, line, func, "%s", logmsg->str + 1);
1218
1219         /* Set type */
1220         logmsg->type = LOGMSG_VERBOSE;
1221
1222         /* Add to the list and poke the thread if possible */
1223         if (logthread != AST_PTHREADT_NULL) {
1224                 AST_LIST_LOCK(&logmsgs);
1225                 AST_LIST_INSERT_TAIL(&logmsgs, logmsg, list);
1226                 ast_cond_signal(&logcond);
1227                 AST_LIST_UNLOCK(&logmsgs);
1228         } else {
1229                 logger_print_verbose(logmsg);
1230                 ast_free(logmsg);
1231         }
1232 }
1233
1234 void __ast_verbose(const char *file, int line, const char *func, const char *fmt, ...)
1235 {
1236         va_list ap;
1237         va_start(ap, fmt);
1238         __ast_verbose_ap(file, line, func, fmt, ap);
1239         va_end(ap);
1240 }
1241
1242 /* No new code should use this directly, but we have the ABI for backwards compat */
1243 #undef ast_verbose
1244 void __attribute__((format(printf, 1,2))) ast_verbose(const char *fmt, ...);
1245 void ast_verbose(const char *fmt, ...)
1246 {
1247         va_list ap;
1248         va_start(ap, fmt);
1249         __ast_verbose_ap("", 0, "", fmt, ap);
1250         va_end(ap);
1251 }
1252
1253 int ast_register_verbose(void (*v)(const char *string))
1254 {
1255         struct verb *verb;
1256
1257         if (!(verb = ast_malloc(sizeof(*verb))))
1258                 return -1;
1259
1260         verb->verboser = v;
1261
1262         AST_RWLIST_WRLOCK(&verbosers);
1263         AST_RWLIST_INSERT_HEAD(&verbosers, verb, list);
1264         AST_RWLIST_UNLOCK(&verbosers);
1265
1266         return 0;
1267 }
1268
1269 int ast_unregister_verbose(void (*v)(const char *string))
1270 {
1271         struct verb *cur;
1272
1273         AST_RWLIST_WRLOCK(&verbosers);
1274         AST_RWLIST_TRAVERSE_SAFE_BEGIN(&verbosers, cur, list) {
1275                 if (cur->verboser == v) {
1276                         AST_RWLIST_REMOVE_CURRENT(list);
1277                         ast_free(cur);
1278                         break;
1279                 }
1280         }
1281         AST_RWLIST_TRAVERSE_SAFE_END;
1282         AST_RWLIST_UNLOCK(&verbosers);
1283
1284         return cur ? 0 : -1;
1285 }