cdr/cdr_adaptive_odbc.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 2007, Tilghman Lesher
   5  *
   6  * Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.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 Adaptive ODBC CDR backend
  22  *
  23  * \author Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.com>
  24  * \ingroup cdr_drivers
  25  */
  26
  27 /*** MODULEINFO
  28         <depend>unixodbc</depend>
  29  ***/
  30
  31 #include "asterisk.h"
  32
  33 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  34
  35 #include <sys/types.h>
  36 #include <time.h>
  37
  38 #include <sql.h>
  39 #include <sqlext.h>
  40 #include <sqltypes.h>
  41
  42 #include "asterisk/config.h"
  43 #include "asterisk/channel.h"
  44 #include "asterisk/lock.h"
  45 #include "asterisk/linkedlists.h"
  46 #include "asterisk/res_odbc.h"
  47 #include "asterisk/cdr.h"
  48 #include "asterisk/module.h"
  49
  50 #define CONFIG  "cdr_adaptive_odbc.conf"
  51
  52 static char *name = "Adaptive ODBC";
  53 /* Optimization to reduce number of memory allocations */
  54 static int maxsize = 512, maxsize2 = 512;
  55
  56 struct columns {
  57         char *name;
  58         char *cdrname;
  59         char *filtervalue;
  60         SQLSMALLINT type;
  61         SQLINTEGER size;
  62         SQLSMALLINT decimals;
  63         SQLSMALLINT radix;
  64         SQLSMALLINT nullable;
  65         SQLINTEGER octetlen;
  66         AST_LIST_ENTRY(columns) list;
  67 };
  68
  69 struct tables {
  70         char *connection;
  71         char *table;
  72         unsigned int usegmtime:1;
  73         AST_LIST_HEAD_NOLOCK(odbc_columns, columns) columns;
  74         AST_RWLIST_ENTRY(tables) list;
  75 };
  76
  77 static AST_RWLIST_HEAD_STATIC(odbc_tables, tables);
  78
  79 static int load_config(void)
  80 {
  81         struct ast_config *cfg;
  82         struct ast_variable *var;
  83         const char *tmp, *catg;
  84         struct tables *tableptr;
  85         struct columns *entry;
  86         struct odbc_obj *obj;
  87         char columnname[80];
  88         char connection[40];
  89         char table[40];
  90         int lenconnection, lentable, usegmtime;
  91         SQLLEN sqlptr;
  92         int res = 0;
  93         SQLHSTMT stmt = NULL;
  94         struct ast_flags config_flags = { 0 }; /* Part of our config comes from the database */
  95
  96         cfg = ast_config_load(CONFIG, config_flags);
  97         if (!cfg) {
  98                 ast_log(LOG_WARNING, "Unable to load " CONFIG ".  No adaptive ODBC CDRs.\n");
  99                 return -1;
 100         }
 101
 102         for (catg = ast_category_browse(cfg, NULL); catg; catg = ast_category_browse(cfg, catg)) {
 103                 var = ast_variable_browse(cfg, catg);
 104                 if (!var)
 105                         continue;
 106
 107                 if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "connection"))) {
 108                         ast_log(LOG_WARNING, "No connection parameter found in '%s'.  Skipping.\n", catg);
 109                         continue;
 110                 }
 111                 ast_copy_string(connection, tmp, sizeof(connection));
 112                 lenconnection = strlen(connection);
 113
 114                 if (!ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "usegmtime"))) {
 115                         usegmtime = ast_true(tmp);
 116                 }
 117
 118                 /* When loading, we want to be sure we can connect. */
 119                 obj = ast_odbc_request_obj(connection, 1);
 120                 if (!obj) {
 121                         ast_log(LOG_WARNING, "No such connection '%s' in the '%s' section of " CONFIG ".  Check res_odbc.conf.\n", connection, catg);
 122                         continue;
 123                 }
 124
 125                 if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "table"))) {
 126                         ast_log(LOG_NOTICE, "No table name found.  Assuming 'cdr'.\n");
 127                         tmp = "cdr";
 128                 }
 129                 ast_copy_string(table, tmp, sizeof(table));
 130                 lentable = strlen(table);
 131
 132                 res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &stmt);
 133                 if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 134                         ast_log(LOG_WARNING, "SQL Alloc Handle failed on connection '%s'!\n", connection);
 135                         ast_odbc_release_obj(obj);
 136                         continue;
 137                 }
 138
 139                 res = SQLColumns(stmt, NULL, 0, NULL, 0, (unsigned char *)table, SQL_NTS, (unsigned char *)"%", SQL_NTS);
 140                 if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 141                         ast_log(LOG_ERROR, "Unable to query database columns on connection '%s'.  Skipping.\n", connection);
 142                         ast_odbc_release_obj(obj);
 143                         continue;
 144                 }
 145
 146                 tableptr = ast_calloc(sizeof(char), sizeof(*tableptr) + lenconnection + 1 + lentable + 1);
 147                 if (!tableptr) {
 148                         ast_log(LOG_ERROR, "Out of memory creating entry for table '%s' on connection '%s'\n", table, connection);
 149                         ast_odbc_release_obj(obj);
 150                         res = -1;
 151                         break;
 152                 }
 153
 154                 tableptr->usegmtime = usegmtime;
 155                 tableptr->connection = (char *)tableptr + sizeof(*tableptr);
 156                 tableptr->table = (char *)tableptr + sizeof(*tableptr) + lenconnection + 1;
 157                 ast_copy_string(tableptr->connection, connection, lenconnection + 1);
 158                 ast_copy_string(tableptr->table, table, lentable + 1);
 159
 160                 ast_verb(3, "Found adaptive CDR table %s@%s.\n", tableptr->table, tableptr->connection);
 161
 162                 /* Check for filters first */
 163                 for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
 164                         if (strncmp(var->name, "filter", 6) == 0) {
 165                                 char *cdrvar = ast_strdupa(var->name + 6);
 166                                 cdrvar = ast_strip(cdrvar);
 167                                 ast_verb(3, "Found filter %s for cdr variable %s in %s@%s\n", var->value, cdrvar, tableptr->table, tableptr->connection);
 168
 169                                 entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(cdrvar) + 1 + strlen(var->value) + 1);
 170                                 if (!entry) {
 171                                         ast_log(LOG_ERROR, "Out of memory creating filter entry for CDR variable '%s' in table '%s' on connection '%s'\n", cdrvar, table, connection);
 172                                         res = -1;
 173                                         break;
 174                                 }
 175
 176                                 /* NULL column entry means this isn't a column in the database */
 177                                 entry->name = NULL;
 178                                 entry->cdrname = (char *)entry + sizeof(*entry);
 179                                 entry->filtervalue = (char *)entry + sizeof(*entry) + strlen(cdrvar) + 1;
 180                                 strcpy(entry->cdrname, cdrvar);
 181                                 strcpy(entry->filtervalue, var->value);
 182
 183                                 AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
 184                         }
 185                 }
 186
 187                 while ((res = SQLFetch(stmt)) != SQL_NO_DATA && res != SQL_ERROR) {
 188                         char *cdrvar = "";
 189
 190                         SQLGetData(stmt,  4, SQL_C_CHAR, columnname, sizeof(columnname), &sqlptr);
 191
 192                         /* Is there an alias for this column? */
 193
 194                         /* NOTE: This seems like a non-optimal parse method, but I'm going
 195                          * for user configuration readability, rather than fast parsing. We
 196                          * really don't parse this file all that often, anyway.
 197                          */
 198                         for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
 199                                 if (strncmp(var->name, "alias", 5) == 0 && strcasecmp(var->value, columnname) == 0) {
 200                                         char *alias = ast_strdupa(var->name + 5);
 201                                         cdrvar = ast_strip(alias);
 202                                         ast_verb(3, "Found alias %s for column %s in %s@%s\n", cdrvar, columnname, tableptr->table, tableptr->connection);
 203                                         break;
 204                                 }
 205                         }
 206
 207                         entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(columnname) + 1 + strlen(cdrvar) + 1);
 208                         if (!entry) {
 209                                 ast_log(LOG_ERROR, "Out of memory creating entry for column '%s' in table '%s' on connection '%s'\n", columnname, table, connection);
 210                                 res = -1;
 211                                 break;
 212                         }
 213                         entry->name = (char *)entry + sizeof(*entry);
 214                         strcpy(entry->name, columnname);
 215
 216                         if (!ast_strlen_zero(cdrvar)) {
 217                                 entry->cdrname = entry->name + strlen(columnname) + 1;
 218                                 strcpy(entry->cdrname, cdrvar);
 219                         } else /* Point to same place as the column name */
 220                                 entry->cdrname = (char *)entry + sizeof(*entry);
 221
 222                         SQLGetData(stmt,  5, SQL_C_SHORT, &entry->type, sizeof(entry->type), NULL);
 223                         SQLGetData(stmt,  7, SQL_C_LONG, &entry->size, sizeof(entry->size), NULL);
 224                         SQLGetData(stmt,  9, SQL_C_SHORT, &entry->decimals, sizeof(entry->decimals), NULL);
 225                         SQLGetData(stmt, 10, SQL_C_SHORT, &entry->radix, sizeof(entry->radix), NULL);
 226                         SQLGetData(stmt, 11, SQL_C_SHORT, &entry->nullable, sizeof(entry->nullable), NULL);
 227                         SQLGetData(stmt, 16, SQL_C_LONG, &entry->octetlen, sizeof(entry->octetlen), NULL);
 228
 229                         /* Specification states that the octenlen should be the maximum number of bytes
 230                          * returned in a char or binary column, but it seems that some drivers just set
 231                          * it to NULL. (Bad Postgres! No biscuit!) */
 232                         if (entry->octetlen == 0)
 233                                 entry->octetlen = entry->size;
 234
 235                         ast_verb(10, "Found %s column with type %hd with len %ld, octetlen %ld, and numlen (%hd,%hd)\n", entry->name, entry->type, (long) entry->size, (long) entry->octetlen, entry->decimals, entry->radix);
 236                         /* Insert column info into column list */
 237                         AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
 238                         res = 0;
 239                 }
 240
 241                 SQLFreeHandle(SQL_HANDLE_STMT, stmt);
 242                 ast_odbc_release_obj(obj);
 243
 244                 if (AST_LIST_FIRST(&(tableptr->columns)))
 245                         AST_RWLIST_INSERT_TAIL(&odbc_tables, tableptr, list);
 246                 else
 247                         ast_free(tableptr);
 248         }
 249         return res;
 250 }
 251
 252 static int free_config(void)
 253 {
 254         struct tables *table;
 255         struct columns *entry;
 256         while ((table = AST_RWLIST_REMOVE_HEAD(&odbc_tables, list))) {
 257                 while ((entry = AST_LIST_REMOVE_HEAD(&(table->columns), list))) {
 258                         ast_free(entry);
 259                 }
 260                 ast_free(table);
 261         }
 262         return 0;
 263 }
 264
 265 static SQLHSTMT generic_prepare(struct odbc_obj *obj, void *data)
 266 {
 267         int res, i;
 268         char *sql = data;
 269         SQLHSTMT stmt;
 270         SQLINTEGER nativeerror = 0, numfields = 0;
 271         SQLSMALLINT diagbytes = 0;
 272         unsigned char state[10], diagnostic[256];
 273
 274         res = SQLAllocHandle (SQL_HANDLE_STMT, obj->con, &stmt);
 275         if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 276                 ast_log(LOG_WARNING, "SQL Alloc Handle failed!\n");
 277                 return NULL;
 278         }
 279
 280         res = SQLPrepare(stmt, (unsigned char *)sql, SQL_NTS);
 281         if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 282                 ast_log(LOG_WARNING, "SQL Prepare failed![%s]\n", sql);
 283                 SQLGetDiagField(SQL_HANDLE_STMT, stmt, 1, SQL_DIAG_NUMBER, &numfields, SQL_IS_INTEGER, &diagbytes);
 284                 for (i = 0; i < numfields; i++) {
 285                         SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i + 1, state, &nativeerror, diagnostic, sizeof(diagnostic), &diagbytes);
 286                         ast_log(LOG_WARNING, "SQL Execute returned an error %d: %s: %s (%d)\n", res, state, diagnostic, diagbytes);
 287                         if (i > 10) {
 288                                 ast_log(LOG_WARNING, "Oh, that was good.  There are really %d diagnostics?\n", (int)numfields);
 289                                 break;
 290                         }
 291                 }
 292                 SQLFreeHandle (SQL_HANDLE_STMT, stmt);
 293                 return NULL;
 294         }
 295
 296         return stmt;
 297 }
 298
 299 #define LENGTHEN_BUF1(size)                                                                                                             \
 300                         do {                                                                                                                            \
 301                                 /* Lengthen buffer, if necessary */                                                             \
 302                                 if (sql->used + size + 1 > sql->len) {                          \
 303                                         if (ast_str_make_space(&sql, ((sql->len + size + 1) / 512 + 1) * 512) != 0) { \
 304                                                 ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
 305                                                 ast_free(sql);                                                                                  \
 306                                                 ast_free(sql2);                                                                                 \
 307                                                 AST_RWLIST_UNLOCK(&odbc_tables);                                                \
 308                                                 return -1;                                                                                              \
 309                                         }                                                                                                                       \
 310                                 }                                                                                                                               \
 311                         } while (0)
 312
 313 #define LENGTHEN_BUF2(size)                                                                                                             \
 314                         do {                                                                                                                            \
 315                                 if (sql2->used + size + 1 > sql2->len) {                        \
 316                                         if (ast_str_make_space(&sql2, ((sql2->len + size + 3) / 512 + 1) * 512) != 0) { \
 317                                                 ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
 318                                                 ast_free(sql);                                                                                  \
 319                                                 ast_free(sql2);                                                                                 \
 320                                                 AST_RWLIST_UNLOCK(&odbc_tables);                                                \
 321                                                 return -1;                                                                                              \
 322                                         }                                                                                                                       \
 323                                 }                                                                                                                               \
 324                         } while (0)
 325
 326 static int odbc_log(struct ast_cdr *cdr)
 327 {
 328         struct tables *tableptr;
 329         struct columns *entry;
 330         struct odbc_obj *obj;
 331         struct ast_str *sql = ast_str_create(maxsize), *sql2 = ast_str_create(maxsize2);
 332         char *tmp;
 333         char colbuf[1024], *colptr;
 334         SQLHSTMT stmt = NULL;
 335         SQLLEN rows = 0;
 336
 337         if (!sql || !sql2) {
 338                 if (sql)
 339                         ast_free(sql);
 340                 if (sql2)
 341                         ast_free(sql2);
 342                 return -1;
 343         }
 344
 345         if (AST_RWLIST_RDLOCK(&odbc_tables)) {
 346                 ast_log(LOG_ERROR, "Unable to lock table list.  Insert CDR(s) failed.\n");
 347                 ast_free(sql);
 348                 ast_free(sql2);
 349                 return -1;
 350         }
 351
 352         AST_LIST_TRAVERSE(&odbc_tables, tableptr, list) {
 353                 ast_str_set(&sql, 0, "INSERT INTO %s (", tableptr->table);
 354                 ast_str_set(&sql2, 0, " VALUES (");
 355
 356                 /* No need to check the connection now; we'll handle any failure in prepare_and_execute */
 357                 if (!(obj = ast_odbc_request_obj(tableptr->connection, 0))) {
 358                         ast_log(LOG_WARNING, "cdr_adaptive_odbc: Unable to retrieve database handle for '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, sql->str);
 359                         continue;
 360                 }
 361
 362                 AST_LIST_TRAVERSE(&(tableptr->columns), entry, list) {
 363                         int datefield = 0;
 364                         if (strcasecmp(entry->cdrname, "start") == 0) {
 365                                 datefield = 1;
 366                         } else if (strcasecmp(entry->cdrname, "answer") == 0) {
 367                                 datefield = 2;
 368                         } else if (strcasecmp(entry->cdrname, "end") == 0) {
 369                                 datefield = 3;
 370                         }
 371
 372                         /* Check if we have a similarly named variable */
 373                         if (datefield && tableptr->usegmtime) {
 374                                 struct timeval tv = (datefield == 1) ? cdr->start : (datefield == 2) ? cdr->answer : cdr->end;
 375                                 struct ast_tm tm = { 0, };
 376                                 ast_localtime(&tv, &tm, "UTC");
 377                                 ast_strftime(colbuf, sizeof(colbuf), "%Y-%m-%d %H:%M:%S", &tm);
 378                         } else {
 379                                 ast_cdr_getvar(cdr, entry->cdrname, &colptr, colbuf, sizeof(colbuf), 0, datefield ? 0 : 1);
 380                         }
 381
 382                         if (colptr) {
 383                                 /* Check first if the column filters this entry.  Note that this
 384                                  * is very specifically NOT ast_strlen_zero(), because the filter
 385                                  * could legitimately specify that the field is blank, which is
 386                                  * different from the field being unspecified (NULL). */
 387                                 if (entry->filtervalue && strcasecmp(colptr, entry->filtervalue) != 0) {
 388                                         ast_verb(4, "CDR column '%s' with value '%s' does not match filter of"
 389                                                 " '%s'.  Cancelling this CDR.\n",
 390                                                 entry->cdrname, colptr, entry->filtervalue);
 391                                         goto early_release;
 392                                 }
 393
 394                                 /* Only a filter? */
 395                                 if (ast_strlen_zero(entry->name))
 396                                         continue;
 397
 398                                 LENGTHEN_BUF1(strlen(entry->name));
 399
 400                                 switch (entry->type) {
 401                                 case SQL_CHAR:
 402                                 case SQL_VARCHAR:
 403                                 case SQL_LONGVARCHAR:
 404                                 case SQL_BINARY:
 405                                 case SQL_VARBINARY:
 406                                 case SQL_LONGVARBINARY:
 407                                 case SQL_GUID:
 408                                         /* For these two field names, get the rendered form, instead of the raw
 409                                          * form (but only when we're dealing with a character-based field).
 410                                          */
 411                                         if (strcasecmp(entry->name, "disposition") == 0)
 412                                                 ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
 413                                         else if (strcasecmp(entry->name, "amaflags") == 0)
 414                                                 ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
 415
 416                                         /* Truncate too-long fields */
 417                                         if (entry->type != SQL_GUID) {
 418                                                 if (strlen(colptr) > entry->octetlen)
 419                                                         colptr[entry->octetlen] = '\0';
 420                                         }
 421
 422                                         ast_str_append(&sql, 0, "%s,", entry->name);
 423                                         LENGTHEN_BUF2(strlen(colptr));
 424
 425                                         /* Encode value, with escaping */
 426                                         ast_str_append(&sql2, 0, "'");
 427                                         for (tmp = colptr; *tmp; tmp++) {
 428                                                 if (*tmp == '\'') {
 429                                                         ast_str_append(&sql2, 0, "''");
 430                                                 } else if (*tmp == '\\' && ast_odbc_backslash_is_escape(obj)) {
 431                                                         ast_str_append(&sql2, 0, "\\\\");
 432                                                 } else {
 433                                                         ast_str_append(&sql2, 0, "%c", *tmp);
 434                                                 }
 435                                         }
 436                                         ast_str_append(&sql2, 0, "',");
 437                                         break;
 438                                 case SQL_TYPE_DATE:
 439                                         {
 440                                                 int year = 0, month = 0, day = 0;
 441                                                 if (sscanf(colptr, "%d-%d-%d", &year, &month, &day) != 3 || year <= 0 ||
 442                                                         month <= 0 || month > 12 || day < 0 || day > 31 ||
 443                                                         ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
 444                                                         (month == 2 && year % 400 == 0 && day > 29) ||
 445                                                         (month == 2 && year % 100 == 0 && day > 28) ||
 446                                                         (month == 2 && year % 4 == 0 && day > 29) ||
 447                                                         (month == 2 && year % 4 != 0 && day > 28)) {
 448                                                         ast_log(LOG_WARNING, "CDR variable %s is not a valid date ('%s').\n", entry->name, colptr);
 449                                                         break;
 450                                                 }
 451
 452                                                 if (year > 0 && year < 100)
 453                                                         year += 2000;
 454
 455                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 456                                                 LENGTHEN_BUF2(17);
 457                                                 ast_str_append(&sql2, 0, "{ d '%04d-%02d-%02d' },", year, month, day);
 458                                         }
 459                                         break;
 460                                 case SQL_TYPE_TIME:
 461                                         {
 462                                                 int hour = 0, minute = 0, second = 0;
 463                                                 int count = sscanf(colptr, "%d:%d:%d", &hour, &minute, &second);
 464
 465                                                 if ((count != 2 && count != 3) || hour < 0 || hour > 23 || minute < 0 || minute > 59 || second < 0 || second > 59) {
 466                                                         ast_log(LOG_WARNING, "CDR variable %s is not a valid time ('%s').\n", entry->name, colptr);
 467                                                         break;
 468                                                 }
 469
 470                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 471                                                 LENGTHEN_BUF2(15);
 472                                                 ast_str_append(&sql2, 0, "{ t '%02d:%02d:%02d' },", hour, minute, second);
 473                                         }
 474                                         break;
 475                                 case SQL_TYPE_TIMESTAMP:
 476                                 case SQL_TIMESTAMP:
 477                                         {
 478                                                 int year = 0, month = 0, day = 0, hour = 0, minute = 0, second = 0;
 479                                                 int count = sscanf(colptr, "%d-%d-%d %d:%d:%d", &year, &month, &day, &hour, &minute, &second);
 480
 481                                                 if ((count != 3 && count != 5 && count != 6) || year <= 0 ||
 482                                                         month <= 0 || month > 12 || day < 0 || day > 31 ||
 483                                                         ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
 484                                                         (month == 2 && year % 400 == 0 && day > 29) ||
 485                                                         (month == 2 && year % 100 == 0 && day > 28) ||
 486                                                         (month == 2 && year % 4 == 0 && day > 29) ||
 487                                                         (month == 2 && year % 4 != 0 && day > 28) ||
 488                                                         hour > 23 || minute > 59 || second > 59 || hour < 0 || minute < 0 || second < 0) {
 489                                                         ast_log(LOG_WARNING, "CDR variable %s is not a valid timestamp ('%s').\n", entry->name, colptr);
 490                                                         break;
 491                                                 }
 492
 493                                                 if (year > 0 && year < 100)
 494                                                         year += 2000;
 495
 496                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 497                                                 LENGTHEN_BUF2(26);
 498                                                 ast_str_append(&sql2, 0, "{ ts '%04d-%02d-%02d %02d:%02d:%02d' },", year, month, day, hour, minute, second);
 499                                         }
 500                                         break;
 501                                 case SQL_INTEGER:
 502                                         {
 503                                                 int integer = 0;
 504                                                 if (sscanf(colptr, "%d", &integer) != 1) {
 505                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 506                                                         break;
 507                                                 }
 508
 509                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 510                                                 LENGTHEN_BUF2(12);
 511                                                 ast_str_append(&sql2, 0, "%d,", integer);
 512                                         }
 513                                         break;
 514                                 case SQL_BIGINT:
 515                                         {
 516                                                 long long integer = 0;
 517                                                 if (sscanf(colptr, "%lld", &integer) != 1) {
 518                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 519                                                         break;
 520                                                 }
 521
 522                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 523                                                 LENGTHEN_BUF2(24);
 524                                                 ast_str_append(&sql2, 0, "%lld,", integer);
 525                                         }
 526                                         break;
 527                                 case SQL_SMALLINT:
 528                                         {
 529                                                 short integer = 0;
 530                                                 if (sscanf(colptr, "%hd", &integer) != 1) {
 531                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 532                                                         break;
 533                                                 }
 534
 535                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 536                                                 LENGTHEN_BUF2(6);
 537                                                 ast_str_append(&sql2, 0, "%d,", integer);
 538                                         }
 539                                         break;
 540                                 case SQL_TINYINT:
 541                                         {
 542                                                 char integer = 0;
 543                                                 if (sscanf(colptr, "%hhd", &integer) != 1) {
 544                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 545                                                         break;
 546                                                 }
 547
 548                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 549                                                 LENGTHEN_BUF2(4);
 550                                                 ast_str_append(&sql2, 0, "%d,", integer);
 551                                         }
 552                                         break;
 553                                 case SQL_BIT:
 554                                         {
 555                                                 char integer = 0;
 556                                                 if (sscanf(colptr, "%hhd", &integer) != 1) {
 557                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 558                                                         break;
 559                                                 }
 560                                                 if (integer != 0)
 561                                                         integer = 1;
 562
 563                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 564                                                 LENGTHEN_BUF2(2);
 565                                                 ast_str_append(&sql2, 0, "%d,", integer);
 566                                         }
 567                                         break;
 568                                 case SQL_NUMERIC:
 569                                 case SQL_DECIMAL:
 570                                         {
 571                                                 double number = 0.0;
 572                                                 if (sscanf(colptr, "%lf", &number) != 1) {
 573                                                         ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
 574                                                         break;
 575                                                 }
 576
 577                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 578                                                 LENGTHEN_BUF2(entry->decimals);
 579                                                 ast_str_append(&sql2, 0, "%*.*lf,", entry->decimals, entry->radix, number);
 580                                         }
 581                                         break;
 582                                 case SQL_FLOAT:
 583                                 case SQL_REAL:
 584                                 case SQL_DOUBLE:
 585                                         {
 586                                                 double number = 0.0;
 587                                                 if (sscanf(colptr, "%lf", &number) != 1) {
 588                                                         ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
 589                                                         break;
 590                                                 }
 591
 592                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 593                                                 LENGTHEN_BUF2(entry->decimals);
 594                                                 ast_str_append(&sql2, 0, "%lf,", number);
 595                                         }
 596                                         break;
 597                                 default:
 598                                         ast_log(LOG_WARNING, "Column type %d (field '%s:%s:%s') is unsupported at this time.\n", entry->type, tableptr->connection, tableptr->table, entry->name);
 599                                 }
 600                         }
 601                 }
 602
 603                 /* Concatenate the two constructed buffers */
 604                 LENGTHEN_BUF1(sql2->used);
 605                 sql->str[sql->used - 1] = ')';
 606                 sql2->str[sql2->used - 1] = ')';
 607                 ast_str_append(&sql, 0, "%s", sql2->str);
 608
 609                 ast_verb(11, "[%s]\n", sql->str);
 610
 611                 stmt = ast_odbc_prepare_and_execute(obj, generic_prepare, sql->str);
 612                 if (stmt) {
 613                         SQLRowCount(stmt, &rows);
 614                         SQLFreeHandle(SQL_HANDLE_STMT, stmt);
 615                 }
 616                 if (rows == 0) {
 617                         ast_log(LOG_WARNING, "cdr_adaptive_odbc: Insert failed on '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, sql->str);
 618                 }
 619 early_release:
 620                 ast_odbc_release_obj(obj);
 621         }
 622         AST_RWLIST_UNLOCK(&odbc_tables);
 623
 624         /* Next time, just allocate buffers that are that big to start with. */
 625         if (sql->used > maxsize)
 626                 maxsize = sql->used;
 627         if (sql2->used > maxsize2)
 628                 maxsize2 = sql2->used;
 629
 630         ast_free(sql);
 631         ast_free(sql2);
 632         return 0;
 633 }
 634
 635 static int unload_module(void)
 636 {
 637         ast_cdr_unregister(name);
 638         usleep(1);
 639         if (AST_RWLIST_WRLOCK(&odbc_tables)) {
 640                 ast_cdr_register(name, ast_module_info->description, odbc_log);
 641                 ast_log(LOG_ERROR, "Unable to lock column list.  Unload failed.\n");
 642                 return -1;
 643         }
 644
 645         free_config();
 646         AST_RWLIST_UNLOCK(&odbc_tables);
 647         return 0;
 648 }
 649
 650 static int load_module(void)
 651 {
 652         if (AST_RWLIST_WRLOCK(&odbc_tables)) {
 653                 ast_log(LOG_ERROR, "Unable to lock column list.  Load failed.\n");
 654                 return 0;
 655         }
 656
 657         load_config();
 658         AST_RWLIST_UNLOCK(&odbc_tables);
 659         ast_cdr_register(name, ast_module_info->description, odbc_log);
 660         return 0;
 661 }
 662
 663 static int reload(void)
 664 {
 665         if (AST_RWLIST_WRLOCK(&odbc_tables)) {
 666                 ast_log(LOG_ERROR, "Unable to lock column list.  Reload failed.\n");
 667                 return -1;
 668         }
 669
 670         free_config();
 671         load_config();
 672         AST_RWLIST_UNLOCK(&odbc_tables);
 673         return 0;
 674 }
 675
 676 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Adaptive ODBC CDR backend",
 677         .load = load_module,
 678         .unload = unload_module,
 679         .reload = reload,
 680 );
 681