cdr/cdr_pgsql.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 2003 - 2006
   5  *
   6  * Matthew D. Hardeman <mhardemn@papersoft.com>
   7  * Adapted from the MySQL CDR logger originally by James Sharp
   8  *
   9  * Modified September 2003
  10  * Matthew D. Hardeman <mhardemn@papersoft.com>
  11  *
  12  * See http://www.asterisk.org for more information about
  13  * the Asterisk project. Please do not directly contact
  14  * any of the maintainers of this project for assistance;
  15  * the project provides a web site, mailing lists and IRC
  16  * channels for your use.
  17  *
  18  * This program is free software, distributed under the terms of
  19  * the GNU General Public License Version 2. See the LICENSE file
  20  * at the top of the source tree.
  21  */
  22
  23 /*! \file
  24  *
  25  * \brief PostgreSQL CDR logger
  26  *
  27  * \author Matthew D. Hardeman <mhardemn@papersoft.com>
  28  * \extref PostgreSQL http://www.postgresql.org/
  29  *
  30  * See also
  31  * \arg \ref Config_cdr
  32  * \arg http://www.postgresql.org/
  33  * \ingroup cdr_drivers
  34  */
  35
  36 /*** MODULEINFO
  37         <depend>pgsql</depend>
  38  ***/
  39
  40 #include "asterisk.h"
  41
  42 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  43
  44 #include <time.h>
  45
  46 #include <libpq-fe.h>
  47
  48 #include "asterisk/config.h"
  49 #include "asterisk/channel.h"
  50 #include "asterisk/cdr.h"
  51 #include "asterisk/module.h"
  52
  53 #define DATE_FORMAT "'%Y-%m-%d %T'"
  54
  55 static char *name = "pgsql";
  56 static char *config = "cdr_pgsql.conf";
  57 static char *pghostname = NULL, *pgdbname = NULL, *pgdbuser = NULL, *pgpassword = NULL, *pgdbport = NULL, *table = NULL;
  58 static int connected = 0;
  59 static int maxsize = 512, maxsize2 = 512;
  60
  61 AST_MUTEX_DEFINE_STATIC(pgsql_lock);
  62
  63 static PGconn   *conn = NULL;
  64
  65 struct columns {
  66         char *name;
  67         char *type;
  68         int len;
  69         unsigned int notnull:1;
  70         unsigned int hasdefault:1;
  71         AST_RWLIST_ENTRY(columns) list;
  72 };
  73
  74 static AST_RWLIST_HEAD_STATIC(psql_columns, columns);
  75
  76 #define LENGTHEN_BUF1(size)                                                                                                             \
  77                         do {                                                                                                                            \
  78                                 /* Lengthen buffer, if necessary */                                                             \
  79                                 if (sql->used + size + 1 > sql->len) {  \
  80                                         if (ast_str_make_space(&sql, ((sql->len + size + 1) / 512 + 1) * 512) != 0) {   \
  81                                                 ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR failed.\n"); \
  82                                                 ast_free(sql);                                                                                  \
  83                                                 ast_free(sql2);                                                                                 \
  84                                                 AST_RWLIST_UNLOCK(&psql_columns);                                               \
  85                                                 return -1;                                                                                              \
  86                                         }                                                                                                                       \
  87                                 }                                                                                                                               \
  88                         } while (0)
  89
  90 #define LENGTHEN_BUF2(size)                                                                                                             \
  91                         do {                                                                                                                            \
  92                                 if (sql2->used + size + 1 > sql2->len) {                                \
  93                                         if (ast_str_make_space(&sql2, ((sql2->len + size + 3) / 512 + 1) * 512) != 0) { \
  94                                                 ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR failed.\n");      \
  95                                                 ast_free(sql);                                                                                  \
  96                                                 ast_free(sql2);                                                                                 \
  97                                                 AST_RWLIST_UNLOCK(&psql_columns);                                               \
  98                                                 return -1;                                                                                              \
  99                                         }                                                                                                                       \
 100                                 }                                                                                                                               \
 101                         } while (0)
 102
 103 static int pgsql_log(struct ast_cdr *cdr)
 104 {
 105         struct ast_tm tm;
 106         char *pgerror;
 107         PGresult *result;
 108
 109         ast_mutex_lock(&pgsql_lock);
 110
 111         if ((!connected) && pghostname && pgdbuser && pgpassword && pgdbname) {
 112                 conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
 113                 if (PQstatus(conn) != CONNECTION_BAD) {
 114                         connected = 1;
 115                 } else {
 116                         pgerror = PQerrorMessage(conn);
 117                         ast_log(LOG_ERROR, "Unable to connect to database server %s.  Calls will not be logged!\n", pghostname);
 118                         ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
 119                         PQfinish(conn);
 120                         conn = NULL;
 121                 }
 122         }
 123
 124         if (connected) {
 125                 struct columns *cur;
 126                 struct ast_str *sql = ast_str_create(maxsize), *sql2 = ast_str_create(maxsize2);
 127                 char buf[257], escapebuf[513], *value;
 128
 129                 if (!sql || !sql2) {
 130                         if (sql) {
 131                                 ast_free(sql);
 132                         }
 133                         if (sql2) {
 134                                 ast_free(sql2);
 135                         }
 136                         return -1;
 137                 }
 138
 139                 ast_str_set(&sql, 0, "INSERT INTO %s (", table);
 140                 ast_str_set(&sql2, 0, " VALUES (");
 141
 142                 AST_RWLIST_RDLOCK(&psql_columns);
 143                 AST_RWLIST_TRAVERSE(&psql_columns, cur, list) {
 144                         /* For fields not set, simply skip them */
 145                         ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
 146                         if (strcmp(cur->name, "calldate") == 0 && !value) {
 147                                 ast_cdr_getvar(cdr, "start", &value, buf, sizeof(buf), 0, 0);
 148                         }
 149                         if (!value) {
 150                                 if (cur->notnull && !cur->hasdefault) {
 151                                         /* Field is NOT NULL (but no default), must include it anyway */
 152                                         LENGTHEN_BUF1(strlen(cur->name) + 2);
 153                                         ast_str_append(&sql, 0, "\"%s\",", cur->name);
 154                                         LENGTHEN_BUF2(3);
 155                                         ast_str_append(&sql2, 0, "'',");
 156                                 }
 157                                 continue;
 158                         }
 159
 160                         LENGTHEN_BUF1(strlen(cur->name) + 2);
 161                         ast_str_append(&sql, 0, "\"%s\",", cur->name);
 162
 163                         if (strcmp(cur->name, "start") == 0 || strcmp(cur->name, "calldate") == 0) {
 164                                 if (strncmp(cur->type, "int", 3) == 0) {
 165                                         LENGTHEN_BUF2(12);
 166                                         ast_str_append(&sql2, 0, "%ld", cdr->start.tv_sec);
 167                                 } else if (strncmp(cur->type, "float", 5) == 0) {
 168                                         LENGTHEN_BUF2(30);
 169                                         ast_str_append(&sql2, 0, "%f", (double)cdr->start.tv_sec + (double)cdr->start.tv_usec / 1000000.0);
 170                                 } else {
 171                                         /* char, hopefully */
 172                                         LENGTHEN_BUF2(30);
 173                                         ast_localtime(&cdr->start, &tm, NULL);
 174                                         ast_strftime(buf, sizeof(buf), DATE_FORMAT, &tm);
 175                                         ast_str_append(&sql2, 0, "%s", buf);
 176                                 }
 177                         } else if (strcmp(cur->name, "answer") == 0) {
 178                                 if (strncmp(cur->type, "int", 3) == 0) {
 179                                         LENGTHEN_BUF2(12);
 180                                         ast_str_append(&sql2, 0, "%ld", cdr->answer.tv_sec);
 181                                 } else if (strncmp(cur->type, "float", 5) == 0) {
 182                                         LENGTHEN_BUF2(30);
 183                                         ast_str_append(&sql2, 0, "%f", (double)cdr->answer.tv_sec + (double)cdr->answer.tv_usec / 1000000.0);
 184                                 } else {
 185                                         /* char, hopefully */
 186                                         LENGTHEN_BUF2(30);
 187                                         ast_localtime(&cdr->start, &tm, NULL);
 188                                         ast_strftime(buf, sizeof(buf), DATE_FORMAT, &tm);
 189                                         ast_str_append(&sql2, 0, "%s", buf);
 190                                 }
 191                         } else if (strcmp(cur->name, "end") == 0) {
 192                                 if (strncmp(cur->type, "int", 3) == 0) {
 193                                         LENGTHEN_BUF2(12);
 194                                         ast_str_append(&sql2, 0, "%ld", cdr->end.tv_sec);
 195                                 } else if (strncmp(cur->type, "float", 5) == 0) {
 196                                         LENGTHEN_BUF2(30);
 197                                         ast_str_append(&sql2, 0, "%f", (double)cdr->end.tv_sec + (double)cdr->end.tv_usec / 1000000.0);
 198                                 } else {
 199                                         /* char, hopefully */
 200                                         LENGTHEN_BUF2(30);
 201                                         ast_localtime(&cdr->end, &tm, NULL);
 202                                         ast_strftime(buf, sizeof(buf), DATE_FORMAT, &tm);
 203                                         ast_str_append(&sql2, 0, "%s", buf);
 204                                 }
 205                         } else if (strcmp(cur->name, "duration") == 0 || strcmp(cur->name, "billsec") == 0) {
 206                                 if (cur->type[0] == 'i') {
 207                                         /* Get integer, no need to escape anything */
 208                                         ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
 209                                         LENGTHEN_BUF2(12);
 210                                         ast_str_append(&sql2, 0, "%s", value);
 211                                 } else if (strncmp(cur->type, "float", 5) == 0) {
 212                                         struct timeval *when = cur->name[0] == 'd' ? &cdr->start : &cdr->answer;
 213                                         LENGTHEN_BUF2(30);
 214                                         ast_str_append(&sql2, 0, "%f", (double)cdr->end.tv_sec - when->tv_sec + cdr->end.tv_usec / 1000000.0 - when->tv_usec / 1000000.0);
 215                                 } else {
 216                                         /* Char field, probably */
 217                                         struct timeval *when = cur->name[0] == 'd' ? &cdr->start : &cdr->answer;
 218                                         LENGTHEN_BUF2(30);
 219                                         ast_str_append(&sql2, 0, "'%f'", (double)cdr->end.tv_sec - when->tv_sec + cdr->end.tv_usec / 1000000.0 - when->tv_usec / 1000000.0);
 220                                 }
 221                         } else if (strcmp(cur->name, "disposition") == 0 || strcmp(cur->name, "amaflags") == 0) {
 222                                 if (strncmp(cur->type, "int", 3) == 0) {
 223                                         /* Integer, no need to escape anything */
 224                                         ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 1);
 225                                         LENGTHEN_BUF2(12);
 226                                         ast_str_append(&sql2, 0, "%s", value);
 227                                 } else {
 228                                         /* Although this is a char field, there are no special characters in the values for these fields */
 229                                         ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
 230                                         LENGTHEN_BUF2(30);
 231                                         ast_str_append(&sql2, 0, "'%s'", value);
 232                                 }
 233                         } else {
 234                                 /* Arbitrary field, could be anything */
 235                                 ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
 236                                 if (strncmp(cur->type, "int", 3) == 0) {
 237                                         long long whatever;
 238                                         if (value && sscanf(value, "%lld", &whatever) == 1) {
 239                                                 LENGTHEN_BUF2(25);
 240                                                 ast_str_append(&sql2, 0, "%lld", whatever);
 241                                         } else {
 242                                                 LENGTHEN_BUF2(1);
 243                                                 ast_str_append(&sql2, 0, "0");
 244                                         }
 245                                 } else if (strncmp(cur->type, "float", 5) == 0) {
 246                                         long double whatever;
 247                                         if (value && sscanf(value, "%Lf", &whatever) == 1) {
 248                                                 LENGTHEN_BUF2(50);
 249                                                 ast_str_append(&sql2, 0, "%30Lf", whatever);
 250                                         } else {
 251                                                 LENGTHEN_BUF2(1);
 252                                                 ast_str_append(&sql2, 0, "0");
 253                                         }
 254                                 /* XXX Might want to handle dates, times, and other misc fields here XXX */
 255                                 } else {
 256                                         if (value)
 257                                                 PQescapeStringConn(conn, escapebuf, value, strlen(value), NULL);
 258                                         else
 259                                                 escapebuf[0] = '\0';
 260                                         LENGTHEN_BUF2(strlen(escapebuf) + 2);
 261                                         ast_str_append(&sql2, 0, "'%s'", escapebuf);
 262                                 }
 263                         }
 264                         LENGTHEN_BUF2(1);
 265                         ast_str_append(&sql2, 0, ",");
 266                 }
 267                 AST_RWLIST_UNLOCK(&psql_columns);
 268                 LENGTHEN_BUF1(sql2->len);
 269                 sql->str[sql->used - 1] = ')';
 270                 sql2->str[sql2->used - 1] = ')';
 271                 ast_str_append(&sql, 0, "%s", sql2->str);
 272                 ast_verb(11, "[%s]\n", sql->str);
 273
 274                 ast_debug(2, "inserting a CDR record.\n");
 275
 276                 /* Test to be sure we're still connected... */
 277                 /* If we're connected, and connection is working, good. */
 278                 /* Otherwise, attempt reconnect.  If it fails... sorry... */
 279                 if (PQstatus(conn) == CONNECTION_OK) {
 280                         connected = 1;
 281                 } else {
 282                         ast_log(LOG_ERROR, "Connection was lost... attempting to reconnect.\n");
 283                         PQreset(conn);
 284                         if (PQstatus(conn) == CONNECTION_OK) {
 285                                 ast_log(LOG_ERROR, "Connection reestablished.\n");
 286                                 connected = 1;
 287                         } else {
 288                                 pgerror = PQerrorMessage(conn);
 289                                 ast_log(LOG_ERROR, "Unable to reconnect to database server %s. Calls will not be logged!\n", pghostname);
 290                                 ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
 291                                 PQfinish(conn);
 292                                 conn = NULL;
 293                                 connected = 0;
 294                                 ast_mutex_unlock(&pgsql_lock);
 295                                 ast_free(sql);
 296                                 ast_free(sql2);
 297                                 return -1;
 298                         }
 299                 }
 300                 result = PQexec(conn, sql->str);
 301                 if (PQresultStatus(result) != PGRES_COMMAND_OK) {
 302                         pgerror = PQresultErrorMessage(result);
 303                         ast_log(LOG_ERROR, "Failed to insert call detail record into database!\n");
 304                         ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
 305                         ast_log(LOG_ERROR, "Connection may have been lost... attempting to reconnect.\n");
 306                         PQreset(conn);
 307                         if (PQstatus(conn) == CONNECTION_OK) {
 308                                 ast_log(LOG_ERROR, "Connection reestablished.\n");
 309                                 connected = 1;
 310                                 PQclear(result);
 311                                 result = PQexec(conn, sql->str);
 312                                 if (PQresultStatus(result) != PGRES_COMMAND_OK) {
 313                                         pgerror = PQresultErrorMessage(result);
 314                                         ast_log(LOG_ERROR, "HARD ERROR!  Attempted reconnection failed.  DROPPING CALL RECORD!\n");
 315                                         ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
 316                                 }
 317                         }
 318                         ast_mutex_unlock(&pgsql_lock);
 319                         PQclear(result);
 320                         ast_free(sql);
 321                         ast_free(sql2);
 322                         return -1;
 323                 }
 324                 PQclear(result);
 325                 ast_free(sql);
 326                 ast_free(sql2);
 327         }
 328         ast_mutex_unlock(&pgsql_lock);
 329         return 0;
 330 }
 331
 332 static int unload_module(void)
 333 {
 334         struct columns *current;
 335         ast_cdr_unregister(name);
 336
 337         /* Give all threads time to finish */
 338         usleep(1);
 339         PQfinish(conn);
 340
 341         if (pghostname)
 342                 ast_free(pghostname);
 343         if (pgdbname)
 344                 ast_free(pgdbname);
 345         if (pgdbuser)
 346                 ast_free(pgdbuser);
 347         if (pgpassword)
 348                 ast_free(pgpassword);
 349         if (pgdbport)
 350                 ast_free(pgdbport);
 351         if (table)
 352                 ast_free(table);
 353
 354         AST_RWLIST_WRLOCK(&psql_columns);
 355         while ((current = AST_RWLIST_REMOVE_HEAD(&psql_columns, list))) {
 356                 ast_free(current);
 357         }
 358         AST_RWLIST_UNLOCK(&psql_columns);
 359
 360         return 0;
 361 }
 362
 363 static int config_module(int reload)
 364 {
 365         struct ast_variable *var;
 366         char *pgerror;
 367         struct columns *cur;
 368         PGresult *result;
 369         const char *tmp;
 370         struct ast_config *cfg;
 371         struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
 372
 373         if ((cfg = ast_config_load(config, config_flags)) == NULL) {
 374                 ast_log(LOG_WARNING, "Unable to load config for PostgreSQL CDR's: %s\n", config);
 375                 return -1;
 376         } else if (cfg == CONFIG_STATUS_FILEUNCHANGED)
 377                 return 0;
 378
 379         if (!(var = ast_variable_browse(cfg, "global"))) {
 380                 ast_config_destroy(cfg);
 381                 return 0;
 382         }
 383
 384         if (!(tmp = ast_variable_retrieve(cfg, "global", "hostname"))) {
 385                 ast_log(LOG_WARNING, "PostgreSQL server hostname not specified.  Assuming unix socket connection\n");
 386                 tmp = "";       /* connect via UNIX-socket by default */
 387         }
 388
 389         if (pghostname)
 390                 ast_free(pghostname);
 391         if (!(pghostname = ast_strdup(tmp))) {
 392                 ast_config_destroy(cfg);
 393                 return -1;
 394         }
 395
 396         if (!(tmp = ast_variable_retrieve(cfg, "global", "dbname"))) {
 397                 ast_log(LOG_WARNING, "PostgreSQL database not specified.  Assuming asterisk\n");
 398                 tmp = "asteriskcdrdb";
 399         }
 400
 401         if (pgdbname)
 402                 ast_free(pgdbname);
 403         if (!(pgdbname = ast_strdup(tmp))) {
 404                 ast_config_destroy(cfg);
 405                 return -1;
 406         }
 407
 408         if (!(tmp = ast_variable_retrieve(cfg, "global", "user"))) {
 409                 ast_log(LOG_WARNING, "PostgreSQL database user not specified.  Assuming asterisk\n");
 410                 tmp = "asterisk";
 411         }
 412
 413         if (pgdbuser)
 414                 ast_free(pgdbuser);
 415         if (!(pgdbuser = ast_strdup(tmp))) {
 416                 ast_config_destroy(cfg);
 417                 return -1;
 418         }
 419
 420         if (!(tmp = ast_variable_retrieve(cfg, "global", "password"))) {
 421                 ast_log(LOG_WARNING, "PostgreSQL database password not specified.  Assuming blank\n");
 422                 tmp = "";
 423         }
 424
 425         if (pgpassword)
 426                 ast_free(pgpassword);
 427         if (!(pgpassword = ast_strdup(tmp))) {
 428                 ast_config_destroy(cfg);
 429                 return -1;
 430         }
 431
 432         if (!(tmp = ast_variable_retrieve(cfg, "global", "port"))) {
 433                 ast_log(LOG_WARNING, "PostgreSQL database port not specified.  Using default 5432.\n");
 434                 tmp = "5432";
 435         }
 436
 437         if (pgdbport)
 438                 ast_free(pgdbport);
 439         if (!(pgdbport = ast_strdup(tmp))) {
 440                 ast_config_destroy(cfg);
 441                 return -1;
 442         }
 443
 444         if (!(tmp = ast_variable_retrieve(cfg, "global", "table"))) {
 445                 ast_log(LOG_WARNING, "CDR table not specified.  Assuming cdr\n");
 446                 tmp = "cdr";
 447         }
 448
 449         if (table)
 450                 ast_free(table);
 451         if (!(table = ast_strdup(tmp))) {
 452                 ast_config_destroy(cfg);
 453                 return -1;
 454         }
 455
 456         if (option_debug) {
 457                 if (ast_strlen_zero(pghostname)) {
 458                         ast_debug(1, "using default unix socket\n");
 459                 } else {
 460                         ast_debug(1, "got hostname of %s\n", pghostname);
 461                 }
 462                 ast_debug(1, "got port of %s\n", pgdbport);
 463                 ast_debug(1, "got user of %s\n", pgdbuser);
 464                 ast_debug(1, "got dbname of %s\n", pgdbname);
 465                 ast_debug(1, "got password of %s\n", pgpassword);
 466                 ast_debug(1, "got sql table name of %s\n", table);
 467         }
 468
 469         conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
 470         if (PQstatus(conn) != CONNECTION_BAD) {
 471                 char sqlcmd[512];
 472                 char *fname, *ftype, *flen, *fnotnull, *fdef;
 473                 int i, rows;
 474                 ast_debug(1, "Successfully connected to PostgreSQL database.\n");
 475                 connected = 1;
 476
 477                 /* Query the columns */
 478                 snprintf(sqlcmd, sizeof(sqlcmd), "select a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc from pg_class c, pg_type t, pg_attribute a left outer join pg_attrdef d on a.atthasdef and d.adrelid = a.attrelid and d.adnum = a.attnum where c.oid = a.attrelid and a.atttypid = t.oid and (a.attnum > 0) and c.relname = '%s' order by c.relname, attnum", table);
 479                 result = PQexec(conn, sqlcmd);
 480                 if (PQresultStatus(result) != PGRES_TUPLES_OK) {
 481                         pgerror = PQresultErrorMessage(result);
 482                         ast_log(LOG_ERROR, "Failed to query database columns: %s\n", pgerror);
 483                         PQclear(result);
 484                         unload_module();
 485                         return AST_MODULE_LOAD_DECLINE;
 486                 }
 487
 488                 rows = PQntuples(result);
 489                 for (i = 0; i < rows; i++) {
 490                         fname = PQgetvalue(result, i, 0);
 491                         ftype = PQgetvalue(result, i, 1);
 492                         flen = PQgetvalue(result, i, 2);
 493                         fnotnull = PQgetvalue(result, i, 3);
 494                         fdef = PQgetvalue(result, i, 4);
 495                         ast_verb(4, "Found column '%s' of type '%s'\n", fname, ftype);
 496                         cur = ast_calloc(1, sizeof(*cur) + strlen(fname) + strlen(ftype) + 2);
 497                         if (cur) {
 498                                 sscanf(flen, "%d", &cur->len);
 499                                 cur->name = (char *)cur + sizeof(*cur);
 500                                 cur->type = (char *)cur + sizeof(*cur) + strlen(fname) + 1;
 501                                 strcpy(cur->name, fname);
 502                                 strcpy(cur->type, ftype);
 503                                 if (*fnotnull == 't') {
 504                                         cur->notnull = 1;
 505                                 } else {
 506                                         cur->notnull = 0;
 507                                 }
 508                                 if (!ast_strlen_zero(fdef)) {
 509                                         cur->hasdefault = 1;
 510                                 } else {
 511                                         cur->hasdefault = 0;
 512                                 }
 513                                 AST_RWLIST_INSERT_TAIL(&psql_columns, cur, list);
 514                         }
 515                 }
 516                 PQclear(result);
 517         } else {
 518                 pgerror = PQerrorMessage(conn);
 519                 ast_log(LOG_ERROR, "Unable to connect to database server %s.  CALLS WILL NOT BE LOGGED!!\n", pghostname);
 520                 ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
 521                 connected = 0;
 522         }
 523
 524         ast_config_destroy(cfg);
 525
 526         return ast_cdr_register(name, ast_module_info->description, pgsql_log);
 527 }
 528
 529 static int load_module(void)
 530 {
 531         return config_module(0) ? AST_MODULE_LOAD_DECLINE : 0;
 532 }
 533
 534 static int reload(void)
 535 {
 536         return config_module(1);
 537 }
 538
 539 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "PostgreSQL CDR Backend",
 540                 .load = load_module,
 541                 .unload = unload_module,
 542                 .reload = reload,
 543                );