cdr_adaptive_odbc.c File Reference

Adaptive ODBC CDR backend. More...

#include "asterisk.h"
#include <sys/types.h>
#include <time.h>
#include <sql.h>
#include <sqlext.h>
#include <sqltypes.h>
#include "asterisk/config.h"
#include "asterisk/channel.h"
#include "asterisk/lock.h"
#include "asterisk/linkedlists.h"
#include "asterisk/res_odbc.h"
#include "asterisk/cdr.h"
#include "asterisk/module.h"

Include dependency graph for cdr_adaptive_odbc.c:

Go to the source code of this file.

Data Structures
struct	columns
struct	tables::odbc_columns
struct	odbc_tables
struct	tables

Macros
#define	CONFIG   "cdr_adaptive_odbc.conf"
#define	LENGTHEN_BUF(size, var_sql)
#define	LENGTHEN_BUF1(size)    LENGTHEN_BUF(size, sql);
#define	LENGTHEN_BUF2(size)    LENGTHEN_BUF(size, sql2);

Functions
static void	__reg_module (void)
static void	__unreg_module (void)
struct ast_module *	AST_MODULE_SELF_SYM (void)
static int	free_config (void)
static SQLHSTMT	generic_prepare (struct odbc_obj *obj, void *data)
static int	load_config (void)
static int	load_module (void)
static int	odbc_log (struct ast_cdr *cdr)
static int	reload (void)
static int	unload_module (void)

Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Adaptive ODBC CDR backend" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .reload = reload, .load_pri = AST_MODPRI_CDR_DRIVER, .requires = "cdr,res_odbc", }
static const struct ast_module_info *	ast_module_info = &__mod_info
static int	maxsize = 512
static int	maxsize2 = 512
static const char	name [] = "Adaptive ODBC"
static struct odbc_tables	odbc_tables = { .first = NULL, .last = NULL, .lock = { PTHREAD_RWLOCK_INITIALIZER , NULL, {1, 0} } , }

Detailed Description

Adaptive ODBC CDR backend.

Author

Tilghman Lesher cdr_a.nosp@m.dapt.nosp@m.ive_o.nosp@m.dbc_.nosp@m._v1@t.nosp@m.he-t.nosp@m.ilghm.nosp@m.an.c.nosp@m.om

Definition in file cdr_adaptive_odbc.c.

Macro Definition Documentation

CONFIG

#define CONFIG   "cdr_adaptive_odbc.conf"

Definition at line 59 of file cdr_adaptive_odbc.c.

LENGTHEN_BUF

#define LENGTHEN_BUF	(		size,
			var_sql
	)

Definition at line 360 of file cdr_adaptive_odbc.c.

LENGTHEN_BUF1

#define LENGTHEN_BUF1

(

size

)

LENGTHEN_BUF(size, sql);

Definition at line 374 of file cdr_adaptive_odbc.c.

LENGTHEN_BUF2

#define LENGTHEN_BUF2

(

size

)

LENGTHEN_BUF(size, sql2);

Definition at line 376 of file cdr_adaptive_odbc.c.

Function Documentation

__reg_module()

static void __reg_module ( void  )

static

Definition at line 836 of file cdr_adaptive_odbc.c.

__unreg_module()

static void __unreg_module ( void  )

static

Definition at line 836 of file cdr_adaptive_odbc.c.

AST_MODULE_SELF_SYM()

struct ast_module * AST_MODULE_SELF_SYM

(

void

)

Definition at line 836 of file cdr_adaptive_odbc.c.

free_config()

static int free_config ( void  )

static

Definition at line 314 of file cdr_adaptive_odbc.c.

{
    struct tables *table;
    struct columns *entry;
    while ((table = AST_RWLIST_REMOVE_HEAD(&odbc_tables, list))) {
        while ((entry = AST_LIST_REMOVE_HEAD(&(table->columns), list))) {
            ast_free(entry);
        }
        ast_free(table);
    }
    return 0;
}

References ast_free, AST_LIST_REMOVE_HEAD, AST_RWLIST_REMOVE_HEAD, columns::list, and table.

Referenced by reload(), and unload_module().

generic_prepare()

static SQLHSTMT generic_prepare ( struct odbc_obj *  obj, void *  data  )

static

Definition at line 327 of file cdr_adaptive_odbc.c.

{
    int res, i;
    SQLHSTMT stmt;
    SQLINTEGER nativeerror = 0, numfields = 0;
    SQLSMALLINT diagbytes = 0;
    unsigned char state[10], diagnostic[256];
 
    res = SQLAllocHandle (SQL_HANDLE_STMT, obj->con, &stmt);
    if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
        ast_log(LOG_WARNING, "SQL Alloc Handle failed!\n");
        return NULL;
    }
 
    res = ast_odbc_prepare(obj, stmt, data);
    if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
        ast_log(LOG_WARNING, "SQL Prepare failed![%s]\n", (char *) data);
        SQLGetDiagField(SQL_HANDLE_STMT, stmt, 1, SQL_DIAG_NUMBER, &numfields, SQL_IS_INTEGER, &diagbytes);
        for (i = 0; i < numfields; i++) {
            SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i + 1, state, &nativeerror, diagnostic, sizeof(diagnostic), &diagbytes);
            ast_log(LOG_WARNING, "SQL Execute returned an error %d: %s: %s (%d)\n", res, state, diagnostic, diagbytes);
            if (i > 10) {
                ast_log(LOG_WARNING, "Oh, that was good.  There are really %d diagnostics?\n", (int)numfields);
                break;
            }
        }
        SQLFreeHandle (SQL_HANDLE_STMT, stmt);
        return NULL;
    }
 
    return stmt;
}

References ast_log, ast_odbc_prepare(), odbc_obj::con, LOG_WARNING, and NULL.

Referenced by odbc_log().

load_config()

static int load_config ( void  )

static

Definition at line 92 of file cdr_adaptive_odbc.c.

{
    struct ast_config *cfg;
    struct ast_variable *var;
    const char *tmp, *catg;
    struct tables *tableptr;
    struct columns *entry;
    struct odbc_obj *obj;
    char columnname[80];
    char connection[40];
    char table[40];
    char schema[40];
    char quoted_identifiers;
    int lenconnection, lentable, lenschema, usegmtime = 0;
    SQLLEN sqlptr;
    int res = 0;
    SQLHSTMT stmt = NULL;
    struct ast_flags config_flags = { 0 }; /* Part of our config comes from the database */
 
    cfg = ast_config_load(CONFIG, config_flags);
    if (!cfg || cfg == CONFIG_STATUS_FILEINVALID) {
        ast_log(LOG_WARNING, "Unable to load " CONFIG ".  No adaptive ODBC CDRs.\n");
        return -1;
    }
 
    for (catg = ast_category_browse(cfg, NULL); catg; catg = ast_category_browse(cfg, catg)) {
        var = ast_variable_browse(cfg, catg);
        if (!var)
            continue;
 
        if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "connection"))) {
            ast_log(LOG_WARNING, "No connection parameter found in '%s'.  Skipping.\n", catg);
            continue;
        }
        ast_copy_string(connection, tmp, sizeof(connection));
        lenconnection = strlen(connection);
 
        if (!ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "usegmtime"))) {
            usegmtime = ast_true(tmp);
        }
 
        /* When loading, we want to be sure we can connect. */
        obj = ast_odbc_request_obj(connection, 1);
        if (!obj) {
            ast_log(LOG_WARNING, "No such connection '%s' in the '%s' section of " CONFIG ".  Check res_odbc.conf.\n", connection, catg);
            continue;
        }
 
        if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "table"))) {
            ast_log(LOG_NOTICE, "No table name found.  Assuming 'cdr'.\n");
            tmp = "cdr";
        }
        ast_copy_string(table, tmp, sizeof(table));
        lentable = strlen(table);
 
        if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "schema"))) {
            tmp = "";
        }
        ast_copy_string(schema, tmp, sizeof(schema));
        lenschema = strlen(schema);
 
        if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "quoted_identifiers"))) {
            tmp = "";
        }
        quoted_identifiers = tmp[0];
        if (strlen(tmp) > 1) {
            ast_log(LOG_ERROR, "The quoted_identifiers setting only accepts a single character,"
                " while a value of '%s' was provided. This option has been disabled as a result.\n", tmp);
            quoted_identifiers = '\0';
        }
 
        res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &stmt);
        if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
            ast_log(LOG_WARNING, "SQL Alloc Handle failed on connection '%s'!\n", connection);
            ast_odbc_release_obj(obj);
            continue;
        }
 
        res = SQLColumns(stmt, NULL, 0, lenschema == 0 ? NULL : (unsigned char *)schema, SQL_NTS, (unsigned char *)table, SQL_NTS, (unsigned char *)"%", SQL_NTS);
        if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
            ast_log(LOG_ERROR, "Unable to query database columns on connection '%s'.  Skipping.\n", connection);
            SQLFreeHandle(SQL_HANDLE_STMT, stmt);
            ast_odbc_release_obj(obj);
            continue;
        }
 
        tableptr = ast_calloc(sizeof(char), sizeof(*tableptr) + lenconnection + 1 + lentable + 1 + lenschema + 1 + 1);
        if (!tableptr) {
            ast_log(LOG_ERROR, "Out of memory creating entry for table '%s' on connection '%s'%s%s%s\n", table, connection,
                lenschema ? " (schema '" : "", lenschema ? schema : "", lenschema ? "')" : "");
            SQLFreeHandle(SQL_HANDLE_STMT, stmt);
            ast_odbc_release_obj(obj);
            res = -1;
            break;
        }
 
        tableptr->usegmtime = usegmtime;
        tableptr->connection = (char *)tableptr + sizeof(*tableptr);
        tableptr->table = (char *)tableptr + sizeof(*tableptr) + lenconnection + 1;
        tableptr->schema = (char *)tableptr + sizeof(*tableptr) + lenconnection + 1 + lentable + 1;
        ast_copy_string(tableptr->connection, connection, lenconnection + 1);
        ast_copy_string(tableptr->table, table, lentable + 1);
        ast_copy_string(tableptr->schema, schema, lenschema + 1);
        tableptr->quoted_identifiers = quoted_identifiers;
 
        ast_verb(3, "Found adaptive CDR table %s@%s.\n", tableptr->table, tableptr->connection);
 
        /* Check for filters first */
        for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
            if (strncmp(var->name, "filter", 6) == 0) {
                int negate = 0;
                char *cdrvar = ast_strdupa(var->name + 6);
                cdrvar = ast_strip(cdrvar);
                if (cdrvar[strlen(cdrvar) - 1] == '!') {
                    negate = 1;
                    cdrvar[strlen(cdrvar) - 1] = '\0';
                    ast_trim_blanks(cdrvar);
                }
 
                ast_verb(3, "Found filter %s'%s' for CDR variable %s in %s@%s\n", negate ? "!" : "", var->value, cdrvar, tableptr->table, tableptr->connection);
 
                entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(cdrvar) + 1 + strlen(var->value) + 1);
                if (!entry) {
                    ast_log(LOG_ERROR, "Out of memory creating filter entry for CDR variable '%s' in table '%s' on connection '%s'\n", cdrvar, table, connection);
                    res = -1;
                    break;
                }
 
                /* NULL column entry means this isn't a column in the database */
                entry->name = NULL;
                entry->cdrname = (char *)entry + sizeof(*entry);
                entry->filtervalue = (char *)entry + sizeof(*entry) + strlen(cdrvar) + 1;
                strcpy(entry->cdrname, cdrvar);
                strcpy(entry->filtervalue, var->value);
                entry->negatefiltervalue = negate;
 
                AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
            }
        }
 
        while ((res = SQLFetch(stmt)) != SQL_NO_DATA && res != SQL_ERROR) {
            char *cdrvar = "", *staticvalue = "";
 
            SQLGetData(stmt,  4, SQL_C_CHAR, columnname, sizeof(columnname), &sqlptr);
 
            /* Is there an alias for this column? */
 
            /* NOTE: This seems like a non-optimal parse method, but I'm going
             * for user configuration readability, rather than fast parsing. We
             * really don't parse this file all that often, anyway.
             */
            for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
                if (strncmp(var->name, "alias", 5) == 0 && strcasecmp(var->value, columnname) == 0) {
                    char *alias = ast_strdupa(var->name + 5);
                    cdrvar = ast_strip(alias);
                    ast_verb(3, "Found alias %s for column %s in %s@%s\n", cdrvar, columnname, tableptr->table, tableptr->connection);
                    break;
                } else if (strncmp(var->name, "static", 6) == 0 && strcasecmp(var->value, columnname) == 0) {
                    char *item = ast_strdupa(var->name + 6);
                    item = ast_strip(item);
                    if (item[0] == '"' && item[strlen(item) - 1] == '"') {
                        /* Remove surrounding quotes */
                        item[strlen(item) - 1] = '\0';
                        item++;
                    }
                    staticvalue = item;
                }
            }
 
            entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(columnname) + 1 + strlen(cdrvar) + 1 + strlen(staticvalue) + 1);
            if (!entry) {
                ast_log(LOG_ERROR, "Out of memory creating entry for column '%s' in table '%s' on connection '%s'\n", columnname, table, connection);
                res = -1;
                SQLFreeHandle(SQL_HANDLE_STMT, stmt);
                break;
            }
            entry->name = (char *)entry + sizeof(*entry);
            strcpy(entry->name, columnname);
 
            if (!ast_strlen_zero(cdrvar)) {
                entry->cdrname = entry->name + strlen(columnname) + 1;
                strcpy(entry->cdrname, cdrvar);
            } else { /* Point to same place as the column name */
                entry->cdrname = (char *)entry + sizeof(*entry);
            }
 
            if (!ast_strlen_zero(staticvalue)) {
                entry->staticvalue = entry->cdrname + strlen(entry->cdrname) + 1;
                strcpy(entry->staticvalue, staticvalue);
            }
 
            SQLGetData(stmt,  5, SQL_C_SHORT, &entry->type, sizeof(entry->type), NULL);
            SQLGetData(stmt,  7, SQL_C_LONG, &entry->size, sizeof(entry->size), NULL);
            SQLGetData(stmt,  9, SQL_C_SHORT, &entry->decimals, sizeof(entry->decimals), NULL);
            SQLGetData(stmt, 10, SQL_C_SHORT, &entry->radix, sizeof(entry->radix), NULL);
            SQLGetData(stmt, 11, SQL_C_SHORT, &entry->nullable, sizeof(entry->nullable), NULL);
            SQLGetData(stmt, 16, SQL_C_LONG, &entry->octetlen, sizeof(entry->octetlen), NULL);
 
            /* Specification states that the octenlen should be the maximum number of bytes
             * returned in a char or binary column, but it seems that some drivers just set
             * it to NULL. (Bad Postgres! No biscuit!) */
            if (entry->octetlen == 0)
                entry->octetlen = entry->size;
 
            ast_verb(4, "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);
            /* Insert column info into column list */
            AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
            res = 0;
        }
 
        SQLFreeHandle(SQL_HANDLE_STMT, stmt);
        ast_odbc_release_obj(obj);
 
        if (AST_LIST_FIRST(&(tableptr->columns)))
            AST_RWLIST_INSERT_TAIL(&odbc_tables, tableptr, list);
        else
            ast_free(tableptr);
    }
    ast_config_destroy(cfg);
    return res;
}

References ast_calloc, ast_category_browse(), ast_config_destroy(), ast_config_load, ast_copy_string(), ast_free, AST_LIST_FIRST, AST_LIST_INSERT_TAIL, ast_log, ast_odbc_release_obj(), ast_odbc_request_obj, AST_RWLIST_INSERT_TAIL, ast_strdupa, ast_strip(), ast_strlen_zero(), ast_trim_blanks(), ast_true(), ast_variable_browse(), ast_variable_retrieve(), ast_verb, tables::columns, odbc_obj::con, CONFIG, CONFIG_STATUS_FILEINVALID, tables::connection, item, LOG_ERROR, LOG_NOTICE, LOG_WARNING, NULL, tables::quoted_identifiers, tables::schema, schema, tables::table, table, tmp(), tables::usegmtime, usegmtime, and var.

Referenced by load_module(), and reload().

load_module()

static int load_module ( void  )

static

Definition at line 803 of file cdr_adaptive_odbc.c.

{
    if (AST_RWLIST_WRLOCK(&odbc_tables)) {
        ast_log(LOG_ERROR, "Unable to lock column list.  Load failed.\n");
        return 0;
    }
 
    load_config();
    AST_RWLIST_UNLOCK(&odbc_tables);
    ast_cdr_register(name, ast_module_info->description, odbc_log);
    return 0;
}

References ast_cdr_register(), ast_log, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_module_info::description, load_config(), LOG_ERROR, name, and odbc_log().

odbc_log()

static int odbc_log ( struct ast_cdr *  cdr )

static

Definition at line 379 of file cdr_adaptive_odbc.c.

{
    struct tables *tableptr;
    struct columns *entry;
    struct odbc_obj *obj;
    struct ast_str *sql = ast_str_create(maxsize), *sql2 = ast_str_create(maxsize2);
    char *tmp;
    char colbuf[1024], *colptr;
    SQLHSTMT stmt = NULL;
    SQLLEN rows = 0;
    char *separator;
    int quoted = 0;
 
    if (!sql || !sql2) {
        if (sql)
            ast_free(sql);
        if (sql2)
            ast_free(sql2);
        return -1;
    }
 
    if (AST_RWLIST_RDLOCK(&odbc_tables)) {
        ast_log(LOG_ERROR, "Unable to lock table list.  Insert CDR(s) failed.\n");
        ast_free(sql);
        ast_free(sql2);
        return -1;
    }
 
    AST_LIST_TRAVERSE(&odbc_tables, tableptr, list) {
        separator = "";
 
        quoted = 0;
        if (tableptr->quoted_identifiers != '\0'){
            quoted = 1;
        }
 
        if (ast_strlen_zero(tableptr->schema)) {
            if (quoted) {
                ast_str_set(&sql, 0, "INSERT INTO %c%s%c (",
                    tableptr->quoted_identifiers, tableptr->table, tableptr->quoted_identifiers );
            }else{
                ast_str_set(&sql, 0, "INSERT INTO %s (", tableptr->table);
            }
        } else {
            if (quoted) {
                ast_str_set(&sql, 0, "INSERT INTO %c%s%c.%c%s%c (",
                        tableptr->quoted_identifiers, tableptr->schema, tableptr->quoted_identifiers,
                        tableptr->quoted_identifiers, tableptr->table,  tableptr->quoted_identifiers);
            }else{
                ast_str_set(&sql, 0, "INSERT INTO %s.%s (", tableptr->schema, tableptr->table);
            }
        }
        ast_str_set(&sql2, 0, " VALUES (");
 
        /* No need to check the connection now; we'll handle any failure in prepare_and_execute */
        if (!(obj = ast_odbc_request_obj(tableptr->connection, 0))) {
            ast_log(LOG_WARNING, "cdr_adaptive_odbc: Unable to retrieve database handle for '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, ast_str_buffer(sql));
            continue;
        }
 
        AST_LIST_TRAVERSE(&(tableptr->columns), entry, list) {
            int datefield = 0;
            if (strcasecmp(entry->cdrname, "start") == 0) {
                datefield = 1;
            } else if (strcasecmp(entry->cdrname, "answer") == 0) {
                datefield = 2;
            } else if (strcasecmp(entry->cdrname, "end") == 0) {
                datefield = 3;
            }
 
            /* Check if we have a similarly named variable */
            if (entry->staticvalue) {
                colptr = ast_strdupa(entry->staticvalue);
            } else if (datefield && tableptr->usegmtime) {
                struct timeval date_tv = (datefield == 1) ? cdr->start : (datefield == 2) ? cdr->answer : cdr->end;
                struct ast_tm tm = { 0, };
                ast_localtime(&date_tv, &tm, "UTC");
                ast_strftime(colbuf, sizeof(colbuf), "%Y-%m-%d %H:%M:%S", &tm);
                colptr = colbuf;
            } else {
                ast_cdr_format_var(cdr, entry->cdrname, &colptr, colbuf, sizeof(colbuf), datefield ? 0 : 1);
            }
 
            if (colptr) {
                /* Check first if the column filters this entry.  Note that this
                 * is very specifically NOT ast_strlen_zero(), because the filter
                 * could legitimately specify that the field is blank, which is
                 * different from the field being unspecified (NULL). */
                if ((entry->filtervalue && !entry->negatefiltervalue && strcasecmp(colptr, entry->filtervalue) != 0) ||
                    (entry->filtervalue && entry->negatefiltervalue && strcasecmp(colptr, entry->filtervalue) == 0)) {
                    ast_verb(4, "CDR column '%s' with value '%s' does not match filter of"
                        " %s'%s'.  Cancelling this CDR.\n",
                        entry->cdrname, colptr, entry->negatefiltervalue ? "!" : "", entry->filtervalue);
                    goto early_release;
                }
 
                /* Only a filter? */
                if (ast_strlen_zero(entry->name))
                    continue;
 
                LENGTHEN_BUF1(strlen(entry->name));
 
                switch (entry->type) {
                case SQL_CHAR:
                case SQL_VARCHAR:
                case SQL_LONGVARCHAR:
#ifdef HAVE_ODBC_WCHAR
                case SQL_WCHAR:
                case SQL_WVARCHAR:
                case SQL_WLONGVARCHAR:
#endif
                case SQL_BINARY:
                case SQL_VARBINARY:
                case SQL_LONGVARBINARY:
                case SQL_GUID:
                    /* For these two field names, get the rendered form, instead of the raw
                     * form (but only when we're dealing with a character-based field).
                     */
                    if (strcasecmp(entry->name, "disposition") == 0) {
                        ast_cdr_format_var(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0);
                    } else if (strcasecmp(entry->name, "amaflags") == 0) {
                        ast_cdr_format_var(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0);
                    }
 
                    /* Truncate too-long fields */
                    if (entry->type != SQL_GUID) {
                        if (strlen(colptr) > entry->octetlen) {
                            colptr[entry->octetlen] = '\0';
                        }
                    }
 
                    LENGTHEN_BUF2(strlen(colptr));
 
                    /* Encode value, with escaping */
                    ast_str_append(&sql2, 0, "%s'", separator);
                    for (tmp = colptr; *tmp; tmp++) {
                        if (*tmp == '\'') {
                            ast_str_append(&sql2, 0, "''");
                        } else if (*tmp == '\\' && ast_odbc_backslash_is_escape(obj)) {
                            ast_str_append(&sql2, 0, "\\\\");
                        } else {
                            ast_str_append(&sql2, 0, "%c", *tmp);
                        }
                    }
                    ast_str_append(&sql2, 0, "'");
                    break;
                case SQL_TYPE_DATE:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        int year = 0, month = 0, day = 0;
                        if (sscanf(colptr, "%4d-%2d-%2d", &year, &month, &day) != 3 || year <= 0 ||
                            month <= 0 || month > 12 || day < 0 || day > 31 ||
                            ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
                            (month == 2 && year % 400 == 0 && day > 29) ||
                            (month == 2 && year % 100 == 0 && day > 28) ||
                            (month == 2 && year % 4 == 0 && day > 29) ||
                            (month == 2 && year % 4 != 0 && day > 28)) {
                            ast_log(LOG_WARNING, "CDR variable %s is not a valid date ('%s').\n", entry->name, colptr);
                            continue;
                        }
 
                        if (year > 0 && year < 100) {
                            year += 2000;
                        }
 
                        LENGTHEN_BUF2(17);
                        ast_str_append(&sql2, 0, "%s{ d '%04d-%02d-%02d' }", separator, year, month, day);
                    }
                    break;
                case SQL_TYPE_TIME:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        int hour = 0, minute = 0, second = 0;
                        int count = sscanf(colptr, "%2d:%2d:%2d", &hour, &minute, &second);
 
                        if ((count != 2 && count != 3) || hour < 0 || hour > 23 || minute < 0 || minute > 59 || second < 0 || second > 59) {
                            ast_log(LOG_WARNING, "CDR variable %s is not a valid time ('%s').\n", entry->name, colptr);
                            continue;
                        }
 
                        LENGTHEN_BUF2(15);
                        ast_str_append(&sql2, 0, "%s{ t '%02d:%02d:%02d' }", separator, hour, minute, second);
                    }
                    break;
                case SQL_TYPE_TIMESTAMP:
                case SQL_TIMESTAMP:
                case SQL_DATETIME:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        int year = 0, month = 0, day = 0, hour = 0, minute = 0, second = 0;
                        int count = sscanf(colptr, "%4d-%2d-%2d %2d:%2d:%2d", &year, &month, &day, &hour, &minute, &second);
 
                        if ((count != 3 && count != 5 && count != 6) || year <= 0 ||
                            month <= 0 || month > 12 || day < 0 || day > 31 ||
                            ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
                            (month == 2 && year % 400 == 0 && day > 29) ||
                            (month == 2 && year % 100 == 0 && day > 28) ||
                            (month == 2 && year % 4 == 0 && day > 29) ||
                            (month == 2 && year % 4 != 0 && day > 28) ||
                            hour > 23 || minute > 59 || second > 59 || hour < 0 || minute < 0 || second < 0) {
                            ast_log(LOG_WARNING, "CDR variable %s is not a valid timestamp ('%s').\n", entry->name, colptr);
                            continue;
                        }
 
                        if (year > 0 && year < 100) {
                            year += 2000;
                        }
 
                        LENGTHEN_BUF2(26);
                        ast_str_append(&sql2, 0, "%s{ ts '%04d-%02d-%02d %02d:%02d:%02d' }", separator, year, month, day, hour, minute, second);
                    }
                    break;
                case SQL_INTEGER:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        int integer = 0;
                        if (sscanf(colptr, "%30d", &integer) != 1) {
                            ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
                            continue;
                        }
 
                        LENGTHEN_BUF2(12);
                        ast_str_append(&sql2, 0, "%s%d", separator, integer);
                    }
                    break;
                case SQL_BIGINT:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        long long integer = 0;
                        if (sscanf(colptr, "%30lld", &integer) != 1) {
                            ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
                            continue;
                        }
 
                        LENGTHEN_BUF2(24);
                        ast_str_append(&sql2, 0, "%s%lld", separator, integer);
                    }
                    break;
                case SQL_SMALLINT:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        short integer = 0;
                        if (sscanf(colptr, "%30hd", &integer) != 1) {
                            ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
                            continue;
                        }
 
                        LENGTHEN_BUF2(6);
                        ast_str_append(&sql2, 0, "%s%d", separator, integer);
                    }
                    break;
                case SQL_TINYINT:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        signed char integer = 0;
                        if (sscanf(colptr, "%30hhd", &integer) != 1) {
                            ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
                            continue;
                        }
 
                        LENGTHEN_BUF2(4);
                        ast_str_append(&sql2, 0, "%s%d", separator, integer);
                    }
                    break;
                case SQL_BIT:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        signed char integer = 0;
                        if (sscanf(colptr, "%30hhd", &integer) != 1) {
                            ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
                            continue;
                        }
                        if (integer != 0)
                            integer = 1;
 
                        LENGTHEN_BUF2(2);
                        ast_str_append(&sql2, 0, "%s%d", separator, integer);
                    }
                    break;
                case SQL_NUMERIC:
                case SQL_DECIMAL:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        double number = 0.0;
 
                        if (!strcasecmp(entry->cdrname, "billsec")) {
                            if (!ast_tvzero(cdr->answer)) {
                                snprintf(colbuf, sizeof(colbuf), "%lf",
                                            (double) (ast_tvdiff_us(cdr->end, cdr->answer) / 1000000.0));
                            } else {
                                ast_copy_string(colbuf, "0", sizeof(colbuf));
                            }
                        } else if (!strcasecmp(entry->cdrname, "duration")) {
                            snprintf(colbuf, sizeof(colbuf), "%lf",
                                        (double) (ast_tvdiff_us(cdr->end, cdr->start) / 1000000.0));
 
                            if (!ast_strlen_zero(colbuf)) {
                                colptr = colbuf;
                            }
                        }
 
                        if (sscanf(colptr, "%30lf", &number) != 1) {
                            ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
                            continue;
                        }
 
                        LENGTHEN_BUF2(entry->decimals);
                        ast_str_append(&sql2, 0, "%s%*.*lf", separator, entry->decimals, entry->radix, number);
                    }
                    break;
                case SQL_FLOAT:
                case SQL_REAL:
                case SQL_DOUBLE:
                    if (ast_strlen_zero(colptr)) {
                        continue;
                    } else {
                        double number = 0.0;
 
                        if (!strcasecmp(entry->cdrname, "billsec")) {
                            if (!ast_tvzero(cdr->answer)) {
                                snprintf(colbuf, sizeof(colbuf), "%lf",
                                            (double) (ast_tvdiff_us(cdr->end, cdr->answer) / 1000000.0));
                            } else {
                                ast_copy_string(colbuf, "0", sizeof(colbuf));
                            }
                        } else if (!strcasecmp(entry->cdrname, "duration")) {
                            snprintf(colbuf, sizeof(colbuf), "%lf",
                                        (double) (ast_tvdiff_us(cdr->end, cdr->start) / 1000000.0));
 
                            if (!ast_strlen_zero(colbuf)) {
                                colptr = colbuf;
                            }
                        }
 
                        if (sscanf(colptr, "%30lf", &number) != 1) {
                            ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
                            continue;
                        }
 
                        LENGTHEN_BUF2(entry->decimals);
                        ast_str_append(&sql2, 0, "%s%lf", separator, number);
                    }
                    break;
                default:
                    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);
                    continue;
                }
                if (quoted) {
                    ast_str_append(&sql, 0, "%s%c%s%c", separator, tableptr->quoted_identifiers, entry->name, tableptr->quoted_identifiers);
                } else {
                    ast_str_append(&sql, 0, "%s%s", separator, entry->name);
                }
                separator = ", ";
            } else if (entry->filtervalue
                && ((!entry->negatefiltervalue && entry->filtervalue[0] != '\0')
                    || (entry->negatefiltervalue && entry->filtervalue[0] == '\0'))) {
                ast_verb(4, "CDR column '%s' was not set and does not match filter of"
                    " %s'%s'.  Cancelling this CDR.\n",
                    entry->cdrname, entry->negatefiltervalue ? "!" : "",
                    entry->filtervalue);
                goto early_release;
            }
        }
 
        /* Concatenate the two constructed buffers */
        LENGTHEN_BUF1(ast_str_strlen(sql2));
        ast_str_append(&sql, 0, ")");
        ast_str_append(&sql2, 0, ")");
        ast_str_append(&sql, 0, "%s", ast_str_buffer(sql2));
 
        ast_debug(3, "Executing [%s]\n", ast_str_buffer(sql));
 
        stmt = ast_odbc_prepare_and_execute(obj, generic_prepare, ast_str_buffer(sql));
        if (stmt) {
            SQLRowCount(stmt, &rows);
            SQLFreeHandle(SQL_HANDLE_STMT, stmt);
        }
        if (rows == 0) {
            ast_log(LOG_WARNING, "cdr_adaptive_odbc: Insert failed on '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, ast_str_buffer(sql));
        }
early_release:
        ast_odbc_release_obj(obj);
    }
    AST_RWLIST_UNLOCK(&odbc_tables);
 
    /* Next time, just allocate buffers that are that big to start with. */
    if (ast_str_strlen(sql) > maxsize) {
        maxsize = ast_str_strlen(sql);
    }
    if (ast_str_strlen(sql2) > maxsize2) {
        maxsize2 = ast_str_strlen(sql2);
    }
 
    ast_free(sql);
    ast_free(sql2);
    return 0;
}

References ast_cdr::answer, ast_cdr_format_var(), ast_copy_string(), ast_debug, ast_free, AST_LIST_TRAVERSE, ast_localtime(), ast_log, ast_odbc_backslash_is_escape(), ast_odbc_prepare_and_execute(), ast_odbc_release_obj(), ast_odbc_request_obj, AST_RWLIST_RDLOCK, AST_RWLIST_UNLOCK, ast_str_append(), ast_str_buffer(), ast_str_create, ast_str_set(), ast_str_strlen(), ast_strdupa, ast_strftime(), ast_strlen_zero(), ast_tvdiff_us(), ast_tvzero(), ast_verb, tables::columns, tables::connection, ast_cdr::end, generic_prepare(), LENGTHEN_BUF1, LENGTHEN_BUF2, LOG_ERROR, LOG_WARNING, maxsize, maxsize2, NULL, tables::quoted_identifiers, tables::schema, ast_cdr::start, tables::table, tmp(), and tables::usegmtime.

Referenced by load_module(), and unload_module().

reload()

static int reload ( void  )

static

Definition at line 816 of file cdr_adaptive_odbc.c.

{
    if (AST_RWLIST_WRLOCK(&odbc_tables)) {
        ast_log(LOG_ERROR, "Unable to lock column list.  Reload failed.\n");
        return -1;
    }
 
    free_config();
    load_config();
    AST_RWLIST_UNLOCK(&odbc_tables);
    return 0;
}

References ast_log, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, free_config(), load_config(), and LOG_ERROR.

unload_module()

static int unload_module ( void  )

static

Definition at line 786 of file cdr_adaptive_odbc.c.

{
    if (ast_cdr_unregister(name)) {
        return -1;
    }
 
    if (AST_RWLIST_WRLOCK(&odbc_tables)) {
        ast_cdr_register(name, ast_module_info->description, odbc_log);
        ast_log(LOG_ERROR, "Unable to lock column list.  Unload failed.\n");
        return -1;
    }
 
    free_config();
    AST_RWLIST_UNLOCK(&odbc_tables);
    return 0;
}

References ast_cdr_register(), ast_cdr_unregister(), ast_log, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_module_info::description, free_config(), LOG_ERROR, name, and odbc_log().

Variable Documentation

__mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Adaptive ODBC CDR backend" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .reload = reload, .load_pri = AST_MODPRI_CDR_DRIVER, .requires = "cdr,res_odbc", }

static

Definition at line 836 of file cdr_adaptive_odbc.c.

ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 836 of file cdr_adaptive_odbc.c.

maxsize

int maxsize = 512

static

Definition at line 63 of file cdr_adaptive_odbc.c.

Referenced by ast_func_read2(), and odbc_log().

maxsize2

int maxsize2 = 512

static

Definition at line 63 of file cdr_adaptive_odbc.c.

Referenced by odbc_log().

name

const char name[] = "Adaptive ODBC"

static

Definition at line 61 of file cdr_adaptive_odbc.c.

Referenced by load_module(), and unload_module().

odbc_tables

struct odbc_tables odbc_tables = { .first = NULL, .last = NULL, .lock = { PTHREAD_RWLOCK_INITIALIZER , NULL, {1, 0} } , }

static