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 #include "asterisk/_private.h"
  39 #include "asterisk/paths.h"     /* use ast_config_AST_LOG_DIR */
  40 #include <signal.h>
  41 #include <time.h>
  42 #include <sys/stat.h>
  43 #include <fcntl.h>
  44 #ifdef HAVE_BKTR
  45 #include <execinfo.h>
  46 #define MAX_BACKTRACE_FRAMES 20
  47 #endif
  48
  49 #define SYSLOG_NAMES /* so we can map syslog facilities names to their numeric values,
  50                         from <syslog.h> which is included by logger.h */
  51 #include <syslog.h>
  52
  53 static int syslog_level_map[] = {
  54         LOG_DEBUG,
  55         LOG_INFO,    /* arbitrary equivalent of LOG_EVENT */
  56         LOG_NOTICE,
  57         LOG_WARNING,
  58         LOG_ERR,
  59         LOG_DEBUG,
  60         LOG_DEBUG
  61 };
  62
  63 #define SYSLOG_NLEVELS sizeof(syslog_level_map) / sizeof(int)
  64
  65 #undef _ASTERISK_LOGGER_H       /* now include logger.h */
  66 #include "asterisk/logger.h"
  67 #include "asterisk/lock.h"
  68 #include "asterisk/channel.h"
  69 #include "asterisk/config.h"
  70 #include "asterisk/term.h"
  71 #include "asterisk/cli.h"
  72 #include "asterisk/utils.h"
  73 #include "asterisk/manager.h"
  74 #include "asterisk/threadstorage.h"
  75 #include "asterisk/strings.h"
  76 #include "asterisk/pbx.h"
  77
  78 #if defined(__linux__) && !defined(__NR_gettid)
  79 #include <asm/unistd.h>
  80 #endif
  81
  82 #if defined(__linux__) && defined(__NR_gettid)
  83 #define GETTID() syscall(__NR_gettid)
  84 #else
  85 #define GETTID() getpid()
  86 #endif
  87
  88 static char dateformat[256] = "%b %e %T";               /* Original Asterisk Format */
  89
  90 static char queue_log_name[256] = QUEUELOG;
  91 static char exec_after_rotate[256] = "";
  92
  93 static int filesize_reload_needed;
  94 static int global_logmask = -1;
  95
  96 enum rotatestrategy {
  97         SEQUENTIAL = 1 << 0,     /* Original method - create a new file, in order */
  98         ROTATE = 1 << 1,         /* Rotate all files, such that the oldest file has the highest suffix */
  99         TIMESTAMP = 1 << 2,      /* Append the epoch timestamp onto the end of the archived file */
 100 } rotatestrategy = SEQUENTIAL;
 101
 102 static struct {
 103         unsigned int queue_log:1;
 104         unsigned int event_log:1;
 105 } logfiles = { 1, 1 };
 106
 107 static char hostname[MAXHOSTNAMELEN];
 108
 109 enum logtypes {
 110         LOGTYPE_SYSLOG,
 111         LOGTYPE_FILE,
 112         LOGTYPE_CONSOLE,
 113 };
 114
 115 struct logchannel {
 116         int logmask;                    /* What to log to this channel */
 117         int disabled;                   /* If this channel is disabled or not */
 118         int facility;                   /* syslog facility */
 119         enum logtypes type;             /* Type of log channel */
 120         FILE *fileptr;                  /* logfile logging file pointer */
 121         char filename[256];             /* Filename */
 122         AST_LIST_ENTRY(logchannel) list;
 123 };
 124
 125 static AST_RWLIST_HEAD_STATIC(logchannels, logchannel);
 126
 127 enum logmsgtypes {
 128         LOGMSG_NORMAL = 0,
 129         LOGMSG_VERBOSE,
 130 };
 131
 132 struct logmsg {
 133         enum logmsgtypes type;
 134         char date[256];
 135         int level;
 136         const char *file;
 137         int line;
 138         const char *function;
 139         AST_LIST_ENTRY(logmsg) list;
 140         char str[0];
 141 };
 142
 143 static AST_LIST_HEAD_STATIC(logmsgs, logmsg);
 144 static pthread_t logthread = AST_PTHREADT_NULL;
 145 static ast_cond_t logcond;
 146 static int close_logger_thread;
 147
 148 static FILE *eventlog;
 149 static FILE *qlog;
 150
 151 /*! \brief Logging channels used in the Asterisk logging system */
 152 static char *levels[] = {
 153         "DEBUG",
 154         "EVENT",
 155         "NOTICE",
 156         "WARNING",
 157         "ERROR",
 158         "VERBOSE",
 159         "DTMF"
 160 };
 161
 162 /*! \brief Colors used in the console for logging */
 163 static int colors[] = {
 164         COLOR_BRGREEN,
 165         COLOR_BRBLUE,
 166         COLOR_YELLOW,
 167         COLOR_BRRED,
 168         COLOR_RED,
 169         COLOR_GREEN,
 170         COLOR_BRGREEN
 171 };
 172
 173 AST_THREADSTORAGE(verbose_buf);
 174 #define VERBOSE_BUF_INIT_SIZE   256
 175
 176 AST_THREADSTORAGE(log_buf);
 177 #define LOG_BUF_INIT_SIZE       256
 178
 179 static int make_components(const char *s, int lineno)
 180 {
 181         char *w;
 182         int res = 0;
 183         char *stringp = ast_strdupa(s);
 184
 185         while ((w = strsep(&stringp, ","))) {
 186                 w = ast_skip_blanks(w);
 187                 if (!strcasecmp(w, "error"))
 188                         res |= (1 << __LOG_ERROR);
 189                 else if (!strcasecmp(w, "warning"))
 190                         res |= (1 << __LOG_WARNING);
 191                 else if (!strcasecmp(w, "notice"))
 192                         res |= (1 << __LOG_NOTICE);
 193                 else if (!strcasecmp(w, "event"))
 194                         res |= (1 << __LOG_EVENT);
 195                 else if (!strcasecmp(w, "debug"))
 196                         res |= (1 << __LOG_DEBUG);
 197                 else if (!strcasecmp(w, "verbose"))
 198                         res |= (1 << __LOG_VERBOSE);
 199                 else if (!strcasecmp(w, "dtmf"))
 200                         res |= (1 << __LOG_DTMF);
 201                 else {
 202                         fprintf(stderr, "Logfile Warning: Unknown keyword '%s' at line %d of logger.conf\n", w, lineno);
 203                 }
 204         }
 205
 206         return res;
 207 }
 208
 209 static struct logchannel *make_logchannel(const char *channel, const char *components, int lineno)
 210 {
 211         struct logchannel *chan;
 212         char *facility;
 213 #ifndef SOLARIS
 214         CODE *cptr;
 215 #endif
 216
 217         if (ast_strlen_zero(channel) || !(chan = ast_calloc(1, sizeof(*chan))))
 218                 return NULL;
 219
 220         if (!strcasecmp(channel, "console")) {
 221                 chan->type = LOGTYPE_CONSOLE;
 222         } else if (!strncasecmp(channel, "syslog", 6)) {
 223                 /*
 224                 * syntax is:
 225                 *  syslog.facility => level,level,level
 226                 */
 227                 facility = strchr(channel, '.');
 228                 if (!facility++ || !facility) {
 229                         facility = "local0";
 230                 }
 231
 232 #ifndef SOLARIS
 233                 /*
 234                 * Walk through the list of facilitynames (defined in sys/syslog.h)
 235                 * to see if we can find the one we have been given
 236                 */
 237                 chan->facility = -1;
 238                 cptr = facilitynames;
 239                 while (cptr->c_name) {
 240                         if (!strcasecmp(facility, cptr->c_name)) {
 241                                 chan->facility = cptr->c_val;
 242                                 break;
 243                         }
 244                         cptr++;
 245                 }
 246 #else
 247                 chan->facility = -1;
 248                 if (!strcasecmp(facility, "kern"))
 249                         chan->facility = LOG_KERN;
 250                 else if (!strcasecmp(facility, "USER"))
 251                         chan->facility = LOG_USER;
 252                 else if (!strcasecmp(facility, "MAIL"))
 253                         chan->facility = LOG_MAIL;
 254                 else if (!strcasecmp(facility, "DAEMON"))
 255                         chan->facility = LOG_DAEMON;
 256                 else if (!strcasecmp(facility, "AUTH"))
 257                         chan->facility = LOG_AUTH;
 258                 else if (!strcasecmp(facility, "SYSLOG"))
 259                         chan->facility = LOG_SYSLOG;
 260                 else if (!strcasecmp(facility, "LPR"))
 261                         chan->facility = LOG_LPR;
 262                 else if (!strcasecmp(facility, "NEWS"))
 263                         chan->facility = LOG_NEWS;
 264                 else if (!strcasecmp(facility, "UUCP"))
 265                         chan->facility = LOG_UUCP;
 266                 else if (!strcasecmp(facility, "CRON"))
 267                         chan->facility = LOG_CRON;
 268                 else if (!strcasecmp(facility, "LOCAL0"))
 269                         chan->facility = LOG_LOCAL0;
 270                 else if (!strcasecmp(facility, "LOCAL1"))
 271                         chan->facility = LOG_LOCAL1;
 272                 else if (!strcasecmp(facility, "LOCAL2"))
 273                         chan->facility = LOG_LOCAL2;
 274                 else if (!strcasecmp(facility, "LOCAL3"))
 275                         chan->facility = LOG_LOCAL3;
 276                 else if (!strcasecmp(facility, "LOCAL4"))
 277                         chan->facility = LOG_LOCAL4;
 278                 else if (!strcasecmp(facility, "LOCAL5"))
 279                         chan->facility = LOG_LOCAL5;
 280                 else if (!strcasecmp(facility, "LOCAL6"))
 281                         chan->facility = LOG_LOCAL6;
 282                 else if (!strcasecmp(facility, "LOCAL7"))
 283                         chan->facility = LOG_LOCAL7;
 284 #endif /* Solaris */
 285
 286                 if (0 > chan->facility) {
 287                         fprintf(stderr, "Logger Warning: bad syslog facility in logger.conf\n");
 288                         ast_free(chan);
 289                         return NULL;
 290                 }
 291
 292                 chan->type = LOGTYPE_SYSLOG;
 293                 snprintf(chan->filename, sizeof(chan->filename), "%s", channel);
 294                 openlog("asterisk", LOG_PID, chan->facility);
 295         } else {
 296                 if (channel[0] == '/') {
 297                         if (!ast_strlen_zero(hostname)) {
 298                                 snprintf(chan->filename, sizeof(chan->filename), "%s.%s", channel, hostname);
 299                         } else {
 300                                 ast_copy_string(chan->filename, channel, sizeof(chan->filename));
 301                         }
 302                 }
 303
 304                 if (!ast_strlen_zero(hostname)) {
 305                         snprintf(chan->filename, sizeof(chan->filename), "%s/%s.%s", ast_config_AST_LOG_DIR, channel, hostname);
 306                 } else {
 307                         snprintf(chan->filename, sizeof(chan->filename), "%s/%s", ast_config_AST_LOG_DIR, channel);
 308                 }
 309                 chan->fileptr = fopen(chan->filename, "a");
 310                 if (!chan->fileptr) {
 311                         /* Can't log here, since we're called with a lock */
 312                         fprintf(stderr, "Logger Warning: Unable to open log file '%s': %s\n", chan->filename, strerror(errno));
 313                 }
 314                 chan->type = LOGTYPE_FILE;
 315         }
 316         chan->logmask = make_components(components, lineno);
 317         return chan;
 318 }
 319
 320 static void init_logger_chain(int reload, int locked)
 321 {
 322         struct logchannel *chan;
 323         struct ast_config *cfg;
 324         struct ast_variable *var;
 325         const char *s;
 326         struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
 327
 328         if ((cfg = ast_config_load2("logger.conf", "logger", config_flags)) == CONFIG_STATUS_FILEUNCHANGED)
 329                 return;
 330
 331         /* delete our list of log channels */
 332         if (!locked)
 333                 AST_RWLIST_WRLOCK(&logchannels);
 334         while ((chan = AST_RWLIST_REMOVE_HEAD(&logchannels, list)))
 335                 ast_free(chan);
 336         if (!locked)
 337                 AST_RWLIST_UNLOCK(&logchannels);
 338
 339         global_logmask = 0;
 340         errno = 0;
 341         /* close syslog */
 342         closelog();
 343
 344         /* If no config file, we're fine, set default options. */
 345         if (!cfg) {
 346                 if (errno)
 347                         fprintf(stderr, "Unable to open logger.conf: %s; default settings will be used.\n", strerror(errno));
 348                 else
 349                         fprintf(stderr, "Errors detected in logger.conf: see above; default settings will be used.\n");
 350                 if (!(chan = ast_calloc(1, sizeof(*chan))))
 351                         return;
 352                 chan->type = LOGTYPE_CONSOLE;
 353                 chan->logmask = 28; /*warning,notice,error */
 354                 if (!locked)
 355                         AST_RWLIST_WRLOCK(&logchannels);
 356                 AST_RWLIST_INSERT_HEAD(&logchannels, chan, list);
 357                 if (!locked)
 358                         AST_RWLIST_UNLOCK(&logchannels);
 359                 global_logmask |= chan->logmask;
 360                 return;
 361         }
 362
 363         if ((s = ast_variable_retrieve(cfg, "general", "appendhostname"))) {
 364                 if (ast_true(s)) {
 365                         if (gethostname(hostname, sizeof(hostname) - 1)) {
 366                                 ast_copy_string(hostname, "unknown", sizeof(hostname));
 367                                 fprintf(stderr, "What box has no hostname???\n");
 368                         }
 369                 } else
 370                         hostname[0] = '\0';
 371         } else
 372                 hostname[0] = '\0';
 373         if ((s = ast_variable_retrieve(cfg, "general", "dateformat")))
 374                 ast_copy_string(dateformat, s, sizeof(dateformat));
 375         else
 376                 ast_copy_string(dateformat, "%b %e %T", sizeof(dateformat));
 377         if ((s = ast_variable_retrieve(cfg, "general", "queue_log")))
 378                 logfiles.queue_log = ast_true(s);
 379         if ((s = ast_variable_retrieve(cfg, "general", "event_log")))
 380                 logfiles.event_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                                                 NULL);
 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 < sizeof(suffixes) / sizeof(suffixes[0]); 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                                 else {
 539                                         found = 1;
 540                                         break;
 541                                 }
 542                         }
 543                         if (!found)
 544                                 break;
 545                 }
 546
 547                 /* Found an empty slot */
 548                 for (y = x; y > -1; y--) {
 549                         for (which = 0; which < sizeof(suffixes) / sizeof(suffixes[0]); 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                 system(buf);
 579                 ast_channel_free(c);
 580         }
 581         return res;
 582 }
 583
 584 static int reload_logger(int rotate)
 585 {
 586         char old[PATH_MAX] = "";
 587         int event_rotate = rotate, queue_rotate = rotate;
 588         struct logchannel *f;
 589         int res = 0;
 590         struct stat st;
 591
 592         AST_RWLIST_WRLOCK(&logchannels);
 593
 594         if (eventlog) {
 595                 if (rotate < 0) {
 596                         /* Check filesize - this one typically doesn't need an auto-rotate */
 597                         snprintf(old, sizeof(old), "%s/%s", ast_config_AST_LOG_DIR, EVENTLOG);
 598                         if (stat(old, &st) != 0 || st.st_size > 0x40000000) { /* Arbitrarily, 1 GB */
 599                                 fclose(eventlog);
 600                                 eventlog = NULL;
 601                         } else
 602                                 event_rotate = 0;
 603                 } else {
 604                         fclose(eventlog);
 605                         eventlog = NULL;
 606                 }
 607         } else
 608                 event_rotate = 0;
 609
 610         if (qlog) {
 611                 if (rotate < 0) {
 612                         /* Check filesize - this one typically doesn't need an auto-rotate */
 613                         snprintf(old, sizeof(old), "%s/%s", ast_config_AST_LOG_DIR, queue_log_name);
 614                         if (stat(old, &st) != 0 || st.st_size > 0x40000000) { /* Arbitrarily, 1 GB */
 615                                 fclose(qlog);
 616                                 qlog = NULL;
 617                         } else
 618                                 event_rotate = 0;
 619                 } else {
 620                         fclose(qlog);
 621                         qlog = NULL;
 622                 }
 623         } else
 624                 queue_rotate = 0;
 625         qlog = NULL;
 626
 627         ast_mkdir(ast_config_AST_LOG_DIR, 0777);
 628
 629         AST_RWLIST_TRAVERSE(&logchannels, f, list) {
 630                 if (f->disabled) {
 631                         f->disabled = 0;        /* Re-enable logging at reload */
 632                         manager_event(EVENT_FLAG_SYSTEM, "LogChannel", "Channel: %s\r\nEnabled: Yes\r\n", f->filename);
 633                 }
 634                 if (f->fileptr && (f->fileptr != stdout) && (f->fileptr != stderr)) {
 635                         fclose(f->fileptr);     /* Close file */
 636                         f->fileptr = NULL;
 637                         if (rotate)
 638                                 rotate_file(f->filename);
 639                 }
 640         }
 641
 642         filesize_reload_needed = 0;
 643
 644         init_logger_chain(rotate ? 0 : 1 /* reload */, 1 /* locked */);
 645
 646         if (logfiles.event_log) {
 647                 snprintf(old, sizeof(old), "%s/%s", ast_config_AST_LOG_DIR, EVENTLOG);
 648                 if (event_rotate)
 649                         rotate_file(old);
 650
 651                 eventlog = fopen(old, "a");
 652                 if (eventlog) {
 653                         ast_log(LOG_EVENT, "Restarted Asterisk Event Logger\n");
 654                         ast_verb(1, "Asterisk Event Logger restarted\n");
 655                 } else {
 656                         ast_log(LOG_ERROR, "Unable to create event log: %s\n", strerror(errno));
 657                         res = -1;
 658                 }
 659         }
 660
 661         if (logfiles.queue_log) {
 662                 snprintf(old, sizeof(old), "%s/%s", ast_config_AST_LOG_DIR, queue_log_name);
 663                 if (queue_rotate)
 664                         rotate_file(old);
 665
 666                 qlog = fopen(old, "a");
 667                 if (qlog) {
 668                         AST_RWLIST_UNLOCK(&logchannels);
 669                         ast_queue_log("NONE", "NONE", "NONE", "CONFIGRELOAD", "%s", "");
 670                         AST_RWLIST_WRLOCK(&logchannels);
 671                         ast_log(LOG_EVENT, "Restarted Asterisk Queue Logger\n");
 672                         ast_verb(1, "Asterisk Queue Logger restarted\n");
 673                 } else {
 674                         ast_log(LOG_ERROR, "Unable to create queue log: %s\n", strerror(errno));
 675                         res = -1;
 676                 }
 677         }
 678
 679         AST_RWLIST_UNLOCK(&logchannels);
 680
 681         return res;
 682 }
 683
 684 /*! \brief Reload the logger module without rotating log files (also used from loader.c during
 685         a full Asterisk reload) */
 686 int logger_reload(void)
 687 {
 688         if(reload_logger(0))
 689                 return RESULT_FAILURE;
 690         return RESULT_SUCCESS;
 691 }
 692
 693 static char *handle_logger_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 694 {
 695         switch (cmd) {
 696         case CLI_INIT:
 697                 e->command = "logger reload";
 698                 e->usage =
 699                         "Usage: logger reload\n"
 700                         "       Reloads the logger subsystem state.  Use after restarting syslogd(8) if you are using syslog logging.\n";
 701                 return NULL;
 702         case CLI_GENERATE:
 703                 return NULL;
 704         }
 705         if (reload_logger(0)) {
 706                 ast_cli(a->fd, "Failed to reload the logger\n");
 707                 return CLI_FAILURE;
 708         }
 709         return CLI_SUCCESS;
 710 }
 711
 712 static char *handle_logger_rotate(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 713 {
 714         switch (cmd) {
 715         case CLI_INIT:
 716                 e->command = "logger rotate";
 717                 e->usage =
 718                         "Usage: logger rotate\n"
 719                         "       Rotates and Reopens the log files.\n";
 720                 return NULL;
 721         case CLI_GENERATE:
 722                 return NULL;
 723         }
 724         if (reload_logger(1)) {
 725                 ast_cli(a->fd, "Failed to reload the logger and rotate log files\n");
 726                 return CLI_FAILURE;
 727         }
 728         return CLI_SUCCESS;
 729 }
 730
 731 /*! \brief CLI command to show logging system configuration */
 732 static char *handle_logger_show_channels(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 733 {
 734 #define FORMATL "%-35.35s %-8.8s %-9.9s "
 735         struct logchannel *chan;
 736         switch (cmd) {
 737         case CLI_INIT:
 738                 e->command = "logger show channels";
 739                 e->usage =
 740                         "Usage: logger show channels\n"
 741                         "       List configured logger channels.\n";
 742                 return NULL;
 743         case CLI_GENERATE:
 744                 return NULL;
 745         }
 746         ast_cli(a->fd, FORMATL, "Channel", "Type", "Status");
 747         ast_cli(a->fd, "Configuration\n");
 748         ast_cli(a->fd, FORMATL, "-------", "----", "------");
 749         ast_cli(a->fd, "-------------\n");
 750         AST_RWLIST_RDLOCK(&logchannels);
 751         AST_RWLIST_TRAVERSE(&logchannels, chan, list) {
 752                 ast_cli(a->fd, FORMATL, chan->filename, chan->type == LOGTYPE_CONSOLE ? "Console" : (chan->type == LOGTYPE_SYSLOG ? "Syslog" : "File"),
 753                         chan->disabled ? "Disabled" : "Enabled");
 754                 ast_cli(a->fd, " - ");
 755                 if (chan->logmask & (1 << __LOG_DEBUG))
 756                         ast_cli(a->fd, "Debug ");
 757                 if (chan->logmask & (1 << __LOG_DTMF))
 758                         ast_cli(a->fd, "DTMF ");
 759                 if (chan->logmask & (1 << __LOG_VERBOSE))
 760                         ast_cli(a->fd, "Verbose ");
 761                 if (chan->logmask & (1 << __LOG_WARNING))
 762                         ast_cli(a->fd, "Warning ");
 763                 if (chan->logmask & (1 << __LOG_NOTICE))
 764                         ast_cli(a->fd, "Notice ");
 765                 if (chan->logmask & (1 << __LOG_ERROR))
 766                         ast_cli(a->fd, "Error ");
 767                 if (chan->logmask & (1 << __LOG_EVENT))
 768                         ast_cli(a->fd, "Event ");
 769                 ast_cli(a->fd, "\n");
 770         }
 771         AST_RWLIST_UNLOCK(&logchannels);
 772         ast_cli(a->fd, "\n");
 773
 774         return CLI_SUCCESS;
 775 }
 776
 777 struct verb {
 778         void (*verboser)(const char *string);
 779         AST_LIST_ENTRY(verb) list;
 780 };
 781
 782 static AST_RWLIST_HEAD_STATIC(verbosers, verb);
 783
 784 static struct ast_cli_entry cli_logger[] = {
 785         AST_CLI_DEFINE(handle_logger_show_channels, "List configured log channels"),
 786         AST_CLI_DEFINE(handle_logger_reload, "Reopens the log files"),
 787         AST_CLI_DEFINE(handle_logger_rotate, "Rotates and reopens the log files")
 788 };
 789
 790 static int handle_SIGXFSZ(int sig)
 791 {
 792         /* Indicate need to reload */
 793         filesize_reload_needed = 1;
 794         return 0;
 795 }
 796
 797 static void ast_log_vsyslog(int level, const char *file, int line, const char *function, char *str)
 798 {
 799         char buf[BUFSIZ];
 800
 801         if (level >= SYSLOG_NLEVELS) {
 802                 /* we are locked here, so cannot ast_log() */
 803                 fprintf(stderr, "ast_log_vsyslog called with bogus level: %d\n", level);
 804                 return;
 805         }
 806
 807         if (level == __LOG_VERBOSE) {
 808                 snprintf(buf, sizeof(buf), "VERBOSE[%ld]: %s", (long)GETTID(), str);
 809                 level = __LOG_DEBUG;
 810         } else if (level == __LOG_DTMF) {
 811                 snprintf(buf, sizeof(buf), "DTMF[%ld]: %s", (long)GETTID(), str);
 812                 level = __LOG_DEBUG;
 813         } else {
 814                 snprintf(buf, sizeof(buf), "%s[%ld]: %s:%d in %s: %s",
 815                          levels[level], (long)GETTID(), file, line, function, str);
 816         }
 817
 818         term_strip(buf, buf, strlen(buf) + 1);
 819         syslog(syslog_level_map[level], "%s", buf);
 820 }
 821
 822 /*! \brief Print a normal log message to the channels */
 823 static void logger_print_normal(struct logmsg *logmsg)
 824 {
 825         struct logchannel *chan = NULL;
 826         char buf[BUFSIZ];
 827
 828         AST_RWLIST_RDLOCK(&logchannels);
 829
 830         if (logfiles.event_log && logmsg->level == __LOG_EVENT) {
 831                 fprintf(eventlog, "%s asterisk[%ld]: %s", logmsg->date, (long)getpid(), logmsg->str);
 832                 fflush(eventlog);
 833                 AST_RWLIST_UNLOCK(&logchannels);
 834                 return;
 835         }
 836
 837         if (!AST_RWLIST_EMPTY(&logchannels)) {
 838                 AST_RWLIST_TRAVERSE(&logchannels, chan, list) {
 839                         /* If the channel is disabled, then move on to the next one */
 840                         if (chan->disabled)
 841                                 continue;
 842                         /* Check syslog channels */
 843                         if (chan->type == LOGTYPE_SYSLOG && (chan->logmask & (1 << logmsg->level))) {
 844                                 ast_log_vsyslog(logmsg->level, logmsg->file, logmsg->line, logmsg->function, logmsg->str);
 845                         /* Console channels */
 846                         } else if (chan->type == LOGTYPE_CONSOLE && (chan->logmask & (1 << logmsg->level))) {
 847                                 char linestr[128];
 848                                 char tmp1[80], tmp2[80], tmp3[80], tmp4[80];
 849
 850                                 /* If the level is verbose, then skip it */
 851                                 if (logmsg->level == __LOG_VERBOSE)
 852                                         continue;
 853
 854                                 /* Turn the numerical line number into a string */
 855                                 snprintf(linestr, sizeof(linestr), "%d", logmsg->line);
 856                                 /* Build string to print out */
 857                                 snprintf(buf, sizeof(buf), "[%s] %s[%ld]: %s:%s %s: %s",
 858                                          logmsg->date,
 859                                          term_color(tmp1, levels[logmsg->level], colors[logmsg->level], 0, sizeof(tmp1)),
 860                                          (long)GETTID(),
 861                                          term_color(tmp2, logmsg->file, COLOR_BRWHITE, 0, sizeof(tmp2)),
 862                                          term_color(tmp3, linestr, COLOR_BRWHITE, 0, sizeof(tmp3)),
 863                                          term_color(tmp4, logmsg->function, COLOR_BRWHITE, 0, sizeof(tmp4)),
 864                                          logmsg->str);
 865                                 /* Print out */
 866                                 ast_console_puts_mutable(buf);
 867                         /* File channels */
 868                         } else if (chan->type == LOGTYPE_FILE && (chan->logmask & (1 << logmsg->level))) {
 869                                 int res = 0;
 870
 871                                 /* If no file pointer exists, skip it */
 872                                 if (!chan->fileptr)
 873                                         continue;
 874
 875                                 /* Print out to the file */
 876                                 res = fprintf(chan->fileptr, "[%s] %s[%ld] %s: %s",
 877                                               logmsg->date, levels[logmsg->level], (long)GETTID(), logmsg->file, logmsg->str);
 878                                 if (res <= 0 && !ast_strlen_zero(logmsg->str)) {
 879                                         fprintf(stderr, "**** Asterisk Logging Error: ***********\n");
 880                                         if (errno == ENOMEM || errno == ENOSPC)
 881                                                 fprintf(stderr, "Asterisk logging error: Out of disk space, can't log to log file %s\n", chan->filename);
 882                                         else
 883                                                 fprintf(stderr, "Logger Warning: Unable to write to log file '%s': %s (disabled)\n", chan->filename, strerror(errno));
 884                                         manager_event(EVENT_FLAG_SYSTEM, "LogChannel", "Channel: %s\r\nEnabled: No\r\nReason: %d - %s\r\n", chan->filename, errno, strerror(errno));
 885                                         chan->disabled = 1;
 886                                 } else if (res > 0) {
 887                                         fflush(chan->fileptr);
 888                                 }
 889                         }
 890                 }
 891         } else if (logmsg->level != __LOG_VERBOSE) {
 892                 fputs(logmsg->str, stdout);
 893         }
 894
 895         AST_RWLIST_UNLOCK(&logchannels);
 896
 897         /* If we need to reload because of the file size, then do so */
 898         if (filesize_reload_needed) {
 899                 reload_logger(-1);
 900                 ast_log(LOG_EVENT, "Rotated Logs Per SIGXFSZ (Exceeded file size limit)\n");
 901                 ast_verb(1, "Rotated Logs Per SIGXFSZ (Exceeded file size limit)\n");
 902         }
 903
 904         return;
 905 }
 906
 907 /*! \brief Print a verbose message to the verbosers */
 908 static void logger_print_verbose(struct logmsg *logmsg)
 909 {
 910         struct verb *v = NULL;
 911
 912         /* Iterate through the list of verbosers and pass them the log message string */
 913         AST_RWLIST_RDLOCK(&verbosers);
 914         AST_RWLIST_TRAVERSE(&verbosers, v, list)
 915                 v->verboser(logmsg->str);
 916         AST_RWLIST_UNLOCK(&verbosers);
 917
 918         return;
 919 }
 920
 921 /*! \brief Actual logging thread */
 922 static void *logger_thread(void *data)
 923 {
 924         struct logmsg *next = NULL, *msg = NULL;
 925
 926         for (;;) {
 927                 /* We lock the message list, and see if any message exists... if not we wait on the condition to be signalled */
 928                 AST_LIST_LOCK(&logmsgs);
 929                 if (AST_LIST_EMPTY(&logmsgs))
 930                         ast_cond_wait(&logcond, &logmsgs.lock);
 931                 next = AST_LIST_FIRST(&logmsgs);
 932                 AST_LIST_HEAD_INIT_NOLOCK(&logmsgs);
 933                 AST_LIST_UNLOCK(&logmsgs);
 934
 935                 /* Otherwise go through and process each message in the order added */
 936                 while ((msg = next)) {
 937                         /* Get the next entry now so that we can free our current structure later */
 938                         next = AST_LIST_NEXT(msg, list);
 939
 940                         /* Depending on the type, send it to the proper function */
 941                         if (msg->type == LOGMSG_NORMAL)
 942                                 logger_print_normal(msg);
 943                         else if (msg->type == LOGMSG_VERBOSE)
 944                                 logger_print_verbose(msg);
 945
 946                         /* Free the data since we are done */
 947                         ast_free(msg);
 948                 }
 949
 950                 /* If we should stop, then stop */
 951                 if (close_logger_thread)
 952                         break;
 953         }
 954
 955         return NULL;
 956 }
 957
 958 int init_logger(void)
 959 {
 960         char tmp[256];
 961         int res = 0;
 962
 963         /* auto rotate if sig SIGXFSZ comes a-knockin */
 964         (void) signal(SIGXFSZ, (void *) handle_SIGXFSZ);
 965
 966         /* start logger thread */
 967         ast_cond_init(&logcond, NULL);
 968         if (ast_pthread_create(&logthread, NULL, logger_thread, NULL) < 0) {
 969                 ast_cond_destroy(&logcond);
 970                 return -1;
 971         }
 972
 973         /* register the logger cli commands */
 974         ast_cli_register_multiple(cli_logger, sizeof(cli_logger) / sizeof(struct ast_cli_entry));
 975
 976         ast_mkdir(ast_config_AST_LOG_DIR, 0777);
 977
 978         /* create log channels */
 979         init_logger_chain(0 /* reload */, 0 /* locked */);
 980
 981         /* create the eventlog */
 982         if (logfiles.event_log) {
 983                 snprintf(tmp, sizeof(tmp), "%s/%s", ast_config_AST_LOG_DIR, EVENTLOG);
 984                 eventlog = fopen(tmp, "a");
 985                 if (eventlog) {
 986                         ast_log(LOG_EVENT, "Started Asterisk Event Logger\n");
 987                         ast_verb(1, "Asterisk Event Logger Started %s\n", tmp);
 988                 } else {
 989                         ast_log(LOG_ERROR, "Unable to create event log: %s\n", strerror(errno));
 990                         res = -1;
 991                 }
 992         }
 993
 994         if (logfiles.queue_log) {
 995                 snprintf(tmp, sizeof(tmp), "%s/%s", ast_config_AST_LOG_DIR, queue_log_name);
 996                 qlog = fopen(tmp, "a");
 997                 ast_queue_log("NONE", "NONE", "NONE", "QUEUESTART", "%s", "");
 998         }
 999         return res;
1000 }
1001
1002 void close_logger(void)
1003 {
1004         struct logchannel *f = NULL;
1005
1006         /* Stop logger thread */
1007         AST_LIST_LOCK(&logmsgs);
1008         close_logger_thread = 1;
1009         ast_cond_signal(&logcond);
1010         AST_LIST_UNLOCK(&logmsgs);
1011
1012         if (logthread != AST_PTHREADT_NULL)
1013                 pthread_join(logthread, NULL);
1014
1015         AST_RWLIST_WRLOCK(&logchannels);
1016
1017         if (eventlog) {
1018                 fclose(eventlog);
1019                 eventlog = NULL;
1020         }
1021
1022         if (qlog) {
1023                 fclose(qlog);
1024                 qlog = NULL;
1025         }
1026
1027         AST_RWLIST_TRAVERSE(&logchannels, f, list) {
1028                 if (f->fileptr && (f->fileptr != stdout) && (f->fileptr != stderr)) {
1029                         fclose(f->fileptr);
1030                         f->fileptr = NULL;
1031                 }
1032         }
1033
1034         closelog(); /* syslog */
1035
1036         AST_RWLIST_UNLOCK(&logchannels);
1037
1038         return;
1039 }
1040
1041 /*!
1042  * \brief send log messages to syslog and/or the console
1043  */
1044 void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...)
1045 {
1046         struct logmsg *logmsg = NULL;
1047         struct ast_str *buf = NULL;
1048         struct ast_tm tm;
1049         struct timeval tv = ast_tvnow();
1050         int res = 0;
1051         va_list ap;
1052
1053         if (!(buf = ast_str_thread_get(&log_buf, LOG_BUF_INIT_SIZE)))
1054                 return;
1055
1056         if (AST_RWLIST_EMPTY(&logchannels)) {
1057                 /*
1058                  * we don't have the logger chain configured yet,
1059                  * so just log to stdout
1060                  */
1061                 if (level != __LOG_VERBOSE) {
1062                         int res;
1063                         va_start(ap, fmt);
1064                         res = ast_str_set_va(&buf, BUFSIZ, fmt, ap); /* XXX BUFSIZ ? */
1065                         va_end(ap);
1066                         if (res != AST_DYNSTR_BUILD_FAILED) {
1067                                 term_filter_escapes(buf->str);
1068                                 fputs(buf->str, stdout);
1069                         }
1070                 }
1071                 return;
1072         }
1073
1074         /* don't display LOG_DEBUG messages unless option_verbose _or_ option_debug
1075            are non-zero; LOG_DEBUG messages can still be displayed if option_debug
1076            is zero, if option_verbose is non-zero (this allows for 'level zero'
1077            LOG_DEBUG messages to be displayed, if the logmask on any channel
1078            allows it)
1079         */
1080         if (!option_verbose && !option_debug && (level == __LOG_DEBUG))
1081                 return;
1082
1083         /* Ignore anything that never gets logged anywhere */
1084         if (!(global_logmask & (1 << level)))
1085                 return;
1086
1087         /* Build string */
1088         va_start(ap, fmt);
1089         res = ast_str_set_va(&buf, BUFSIZ, fmt, ap);
1090         va_end(ap);
1091
1092         /* If the build failed, then abort and free this structure */
1093         if (res == AST_DYNSTR_BUILD_FAILED)
1094                 return;
1095
1096         /* Create a new logging message */
1097         if (!(logmsg = ast_calloc(1, sizeof(*logmsg) + res + 1)))
1098                 return;
1099
1100         /* Copy string over */
1101         strcpy(logmsg->str, buf->str);
1102
1103         /* Set type to be normal */
1104         logmsg->type = LOGMSG_NORMAL;
1105
1106         /* Create our date/time */
1107         ast_localtime(&tv, &tm, NULL);
1108         ast_strftime(logmsg->date, sizeof(logmsg->date), dateformat, &tm);
1109
1110         /* Copy over data */
1111         logmsg->level = level;
1112         logmsg->file = file;
1113         logmsg->line = line;
1114         logmsg->function = function;
1115
1116         /* If the logger thread is active, append it to the tail end of the list - otherwise skip that step */
1117         if (logthread != AST_PTHREADT_NULL) {
1118                 AST_LIST_LOCK(&logmsgs);
1119                 AST_LIST_INSERT_TAIL(&logmsgs, logmsg, list);
1120                 ast_cond_signal(&logcond);
1121                 AST_LIST_UNLOCK(&logmsgs);
1122         } else {
1123                 logger_print_normal(logmsg);
1124                 ast_free(logmsg);
1125         }
1126
1127         return;
1128 }
1129
1130 void ast_backtrace(void)
1131 {
1132 #ifdef HAVE_BKTR
1133         int count = 0, i = 0;
1134         void **addresses;
1135         char **strings;
1136
1137         if ((addresses = ast_calloc(MAX_BACKTRACE_FRAMES, sizeof(*addresses)))) {
1138                 count = backtrace(addresses, MAX_BACKTRACE_FRAMES);
1139                 if ((strings = backtrace_symbols(addresses, count))) {
1140                         ast_debug(1, "Got %d backtrace record%c\n", count, count != 1 ? 's' : ' ');
1141                         for (i = 0; i < count; i++) {
1142 #if __WORDSIZE == 32
1143                                 ast_log(LOG_DEBUG, "#%d: [%08X] %s\n", i, (unsigned int)addresses[i], strings[i]);
1144 #elif __WORDSIZE == 64
1145                                 ast_log(LOG_DEBUG, "#%d: [%016lX] %s\n", i, (unsigned long)addresses[i], strings[i]);
1146 #endif
1147                         }
1148                         free(strings);
1149                 } else {
1150                         ast_debug(1, "Could not allocate memory for backtrace\n");
1151                 }
1152                 ast_free(addresses);
1153         }
1154 #else
1155         ast_log(LOG_WARNING, "Must run configure with '--with-execinfo' for stack backtraces.\n");
1156 #endif
1157 }
1158
1159 void ast_verbose(const char *fmt, ...)
1160 {
1161         struct logmsg *logmsg = NULL;
1162         struct ast_str *buf = NULL;
1163         int res = 0;
1164         va_list ap;
1165
1166         if (!(buf = ast_str_thread_get(&verbose_buf, VERBOSE_BUF_INIT_SIZE)))
1167                 return;
1168
1169         if (ast_opt_timestamp) {
1170                 struct timeval tv;
1171                 struct ast_tm tm;
1172                 char date[40];
1173                 char *datefmt;
1174
1175                 tv = ast_tvnow();
1176                 ast_localtime(&tv, &tm, NULL);
1177                 ast_strftime(date, sizeof(date), dateformat, &tm);
1178                 datefmt = alloca(strlen(date) + 3 + strlen(fmt) + 1);
1179                 sprintf(datefmt, "%c[%s] %s", 127, date, fmt);
1180                 fmt = datefmt;
1181         } else {
1182                 char *tmp = alloca(strlen(fmt) + 2);
1183                 sprintf(tmp, "%c%s", 127, fmt);
1184                 fmt = tmp;
1185         }
1186
1187         /* Build string */
1188         va_start(ap, fmt);
1189         res = ast_str_set_va(&buf, 0, fmt, ap);
1190         va_end(ap);
1191
1192         /* If the build failed then we can drop this allocated message */
1193         if (res == AST_DYNSTR_BUILD_FAILED)
1194                 return;
1195
1196         if (!(logmsg = ast_calloc(1, sizeof(*logmsg) + res + 1)))
1197                 return;
1198
1199         strcpy(logmsg->str, buf->str);
1200
1201         ast_log(LOG_VERBOSE, "%s", logmsg->str + 1);
1202
1203         /* Set type */
1204         logmsg->type = LOGMSG_VERBOSE;
1205
1206         /* Add to the list and poke the thread if possible */
1207         if (logthread != AST_PTHREADT_NULL) {
1208                 AST_LIST_LOCK(&logmsgs);
1209                 AST_LIST_INSERT_TAIL(&logmsgs, logmsg, list);
1210                 ast_cond_signal(&logcond);
1211                 AST_LIST_UNLOCK(&logmsgs);
1212         } else {
1213                 logger_print_verbose(logmsg);
1214                 ast_free(logmsg);
1215         }
1216 }
1217
1218 int ast_register_verbose(void (*v)(const char *string))
1219 {
1220         struct verb *verb;
1221
1222         if (!(verb = ast_malloc(sizeof(*verb))))
1223                 return -1;
1224
1225         verb->verboser = v;
1226
1227         AST_RWLIST_WRLOCK(&verbosers);
1228         AST_RWLIST_INSERT_HEAD(&verbosers, verb, list);
1229         AST_RWLIST_UNLOCK(&verbosers);
1230
1231         return 0;
1232 }
1233
1234 int ast_unregister_verbose(void (*v)(const char *string))
1235 {
1236         struct verb *cur;
1237
1238         AST_RWLIST_WRLOCK(&verbosers);
1239         AST_RWLIST_TRAVERSE_SAFE_BEGIN(&verbosers, cur, list) {
1240                 if (cur->verboser == v) {
1241                         AST_RWLIST_REMOVE_CURRENT(list);
1242                         ast_free(cur);
1243                         break;
1244                 }
1245         }
1246         AST_RWLIST_TRAVERSE_SAFE_END;
1247         AST_RWLIST_UNLOCK(&verbosers);
1248
1249         return cur ? 0 : -1;
1250 }