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/*
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* Asterisk - - An open source telephony toolkit .
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*
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* Copyright ( C ) 1999 - 2005 , Digium , Inc .
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*
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* Mark Spencer < markster @ digium . com >
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*
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* Copyright ( C ) 2004 - 2005 Anthony Minessale II < anthmct @ yahoo . com >
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*
* See http : //www.asterisk.org for more information about
* the Asterisk project . Please do not directly contact
* any of the maintainers of this project for assistance ;
* the project provides a web site , mailing lists and IRC
* channels for your use .
*
* This program is free software , distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree .
*/
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/*! \file
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*
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* \ brief odbc + odbc plugin for portable configuration engine
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*
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* \ author Mark Spencer < markster @ digium . com >
* \ author Anthony Minessale II < anthmct @ yahoo . com >
*
* \ arg http : //www.unixodbc.org
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*/
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# include <stdio.h>
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# include <stdlib.h>
# include <unistd.h>
# include <string.h>
# include "asterisk.h"
ASTERISK_FILE_VERSION ( __FILE__ , " $Revision$ " )
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# include "asterisk/file.h"
# include "asterisk/logger.h"
# include "asterisk/channel.h"
# include "asterisk/pbx.h"
# include "asterisk/config.h"
# include "asterisk/module.h"
# include "asterisk/lock.h"
# include "asterisk/options.h"
# include "asterisk/res_odbc.h"
# include "asterisk/utils.h"
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static char * tdesc = " ODBC Configuration " ;
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STANDARD_LOCAL_USER ;
LOCAL_USER_DECL ;
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static struct ast_variable * realtime_odbc ( const char * database , const char * table , va_list ap )
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{
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odbc_obj * obj ;
SQLHSTMT stmt ;
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char sql [ 1024 ] ;
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char coltitle [ 256 ] ;
char rowdata [ 2048 ] ;
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char * op ;
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const char * newparam , * newval ;
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char * stringp ;
char * chunk ;
SQLSMALLINT collen ;
int res ;
int x ;
struct ast_variable * var = NULL , * prev = NULL ;
SQLULEN colsize ;
SQLSMALLINT colcount = 0 ;
SQLSMALLINT datatype ;
SQLSMALLINT decimaldigits ;
SQLSMALLINT nullable ;
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SQLINTEGER indicator ;
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va_list aq ;
va_copy ( aq , ap ) ;
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if ( ! table )
return NULL ;
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obj = fetch_odbc_obj ( database , 0 ) ;
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if ( ! obj )
return NULL ;
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 ;
}
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newparam = va_arg ( aq , const char * ) ;
if ( ! newparam ) {
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
newval = va_arg ( aq , const char * ) ;
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if ( ! strchr ( newparam , ' ' ) ) op = " = " ; else op = " " ;
snprintf ( sql , sizeof ( sql ) , " SELECT * FROM %s WHERE %s%s ? " , table , newparam , op ) ;
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while ( ( newparam = va_arg ( aq , const char * ) ) ) {
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if ( ! strchr ( newparam , ' ' ) ) op = " = " ; else op = " " ;
snprintf ( sql + strlen ( sql ) , sizeof ( sql ) - strlen ( sql ) , " AND %s%s ? " , newparam , op ) ;
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newval = va_arg ( aq , const char * ) ;
}
va_end ( aq ) ;
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res = SQLPrepare ( stmt , sql , SQL_NTS ) ;
if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Prepare failed![%s] \n " , sql ) ;
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
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/* Now bind the parameters */
x = 1 ;
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while ( ( newparam = va_arg ( ap , const char * ) ) ) {
newval = va_arg ( ap , const char * ) ;
SQLBindParameter ( stmt , x + + , SQL_PARAM_INPUT , SQL_C_CHAR , SQL_CHAR , strlen ( newval ) , 0 , ( void * ) newval , 0 , NULL ) ;
}
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res = odbc_smart_execute ( obj , stmt ) ;
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Execute error! \n [%s] \n \n " , sql ) ;
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
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res = SQLNumResultCols ( stmt , & colcount ) ;
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
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ast_log ( LOG_WARNING , " SQL Column Count error! \n [%s] \n \n " , sql ) ;
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SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
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res = SQLFetch ( stmt ) ;
if ( res = = SQL_NO_DATA ) {
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
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ast_log ( LOG_WARNING , " SQL Fetch error! \n [%s] \n \n " , sql ) ;
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SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
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for ( x = 0 ; x < colcount ; x + + ) {
rowdata [ 0 ] = ' \0 ' ;
collen = sizeof ( coltitle ) ;
res = SQLDescribeCol ( stmt , x + 1 , coltitle , sizeof ( coltitle ) , & collen ,
& datatype , & colsize , & decimaldigits , & nullable ) ;
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
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ast_log ( LOG_WARNING , " SQL Describe Column error! \n [%s] \n \n " , sql ) ;
if ( var )
ast_variables_destroy ( var ) ;
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return NULL ;
}
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indicator = 0 ;
res = SQLGetData ( stmt , x + 1 , SQL_CHAR , rowdata , sizeof ( rowdata ) , & indicator ) ;
if ( indicator = = SQL_NULL_DATA )
continue ;
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Get Data error! \n [%s] \n \n " , sql ) ;
if ( var )
ast_variables_destroy ( var ) ;
return NULL ;
}
stringp = rowdata ;
while ( stringp ) {
chunk = strsep ( & stringp , " ; " ) ;
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if ( ! ast_strlen_zero ( ast_strip ( chunk ) ) ) {
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if ( prev ) {
prev - > next = ast_variable_new ( coltitle , chunk ) ;
if ( prev - > next )
prev = prev - > next ;
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} else
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prev = var = ast_variable_new ( coltitle , chunk ) ;
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}
}
}
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return var ;
}
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static struct ast_config * realtime_multi_odbc ( const char * database , const char * table , va_list ap )
{
odbc_obj * obj ;
SQLHSTMT stmt ;
char sql [ 1024 ] ;
char coltitle [ 256 ] ;
char rowdata [ 2048 ] ;
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const char * initfield = NULL ;
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char * op ;
const char * newparam , * newval ;
char * stringp ;
char * chunk ;
SQLSMALLINT collen ;
int res ;
int x ;
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struct ast_variable * var = NULL ;
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struct ast_config * cfg = NULL ;
struct ast_category * cat = NULL ;
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struct ast_realloca ra ;
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SQLULEN colsize ;
SQLSMALLINT colcount = 0 ;
SQLSMALLINT datatype ;
SQLSMALLINT decimaldigits ;
SQLSMALLINT nullable ;
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SQLINTEGER indicator ;
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va_list aq ;
va_copy ( aq , ap ) ;
if ( ! table )
return NULL ;
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memset ( & ra , 0 , sizeof ( ra ) ) ;
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obj = fetch_odbc_obj ( database , 0 ) ;
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if ( ! obj )
return NULL ;
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 ;
}
newparam = va_arg ( aq , const char * ) ;
if ( ! newparam ) {
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
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initfield = ast_strdupa ( newparam ) ;
if ( initfield & & ( op = strchr ( initfield , ' ' ) ) )
* op = ' \0 ' ;
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newval = va_arg ( aq , const char * ) ;
if ( ! strchr ( newparam , ' ' ) ) op = " = " ; else op = " " ;
snprintf ( sql , sizeof ( sql ) , " SELECT * FROM %s WHERE %s%s ? " , table , newparam , op ) ;
while ( ( newparam = va_arg ( aq , const char * ) ) ) {
if ( ! strchr ( newparam , ' ' ) ) op = " = " ; else op = " " ;
snprintf ( sql + strlen ( sql ) , sizeof ( sql ) - strlen ( sql ) , " AND %s%s ? " , newparam , op ) ;
newval = va_arg ( aq , const char * ) ;
}
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if ( initfield )
snprintf ( sql + strlen ( sql ) , sizeof ( sql ) - strlen ( sql ) , " ORDER BY %s " , initfield ) ;
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va_end ( aq ) ;
res = SQLPrepare ( stmt , sql , SQL_NTS ) ;
if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Prepare failed![%s] \n " , sql ) ;
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
/* Now bind the parameters */
x = 1 ;
while ( ( newparam = va_arg ( ap , const char * ) ) ) {
newval = va_arg ( ap , const char * ) ;
SQLBindParameter ( stmt , x + + , SQL_PARAM_INPUT , SQL_C_CHAR , SQL_CHAR , strlen ( newval ) , 0 , ( void * ) newval , 0 , NULL ) ;
}
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res = odbc_smart_execute ( obj , stmt ) ;
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Execute error! \n [%s] \n \n " , sql ) ;
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
res = SQLNumResultCols ( stmt , & colcount ) ;
if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Column Count error! \n [%s] \n \n " , sql ) ;
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
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cfg = ast_config_new ( ) ;
if ( ! cfg ) {
ast_log ( LOG_WARNING , " Out of memory! \n " ) ;
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
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while ( ( res = SQLFetch ( stmt ) ) ! = SQL_NO_DATA ) {
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var = NULL ;
if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Fetch error! \n [%s] \n \n " , sql ) ;
continue ;
}
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cat = ast_category_new ( " " ) ;
if ( ! cat ) {
ast_log ( LOG_WARNING , " Out of memory! \n " ) ;
continue ;
}
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for ( x = 0 ; x < colcount ; x + + ) {
rowdata [ 0 ] = ' \0 ' ;
collen = sizeof ( coltitle ) ;
res = SQLDescribeCol ( stmt , x + 1 , coltitle , sizeof ( coltitle ) , & collen ,
& datatype , & colsize , & decimaldigits , & nullable ) ;
if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Describe Column error! \n [%s] \n \n " , sql ) ;
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ast_category_destroy ( cat ) ;
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continue ;
}
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indicator = 0 ;
res = SQLGetData ( stmt , x + 1 , SQL_CHAR , rowdata , sizeof ( rowdata ) , & indicator ) ;
if ( indicator = = SQL_NULL_DATA )
continue ;
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Get Data error! \n [%s] \n \n " , sql ) ;
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ast_category_destroy ( cat ) ;
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continue ;
}
stringp = rowdata ;
while ( stringp ) {
chunk = strsep ( & stringp , " ; " ) ;
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if ( ! ast_strlen_zero ( ast_strip ( chunk ) ) ) {
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if ( initfield & & ! strcmp ( initfield , coltitle ) )
ast_category_rename ( cat , chunk ) ;
var = ast_variable_new ( coltitle , chunk ) ;
ast_variable_append ( cat , var ) ;
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}
}
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}
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ast_category_append ( cfg , cat ) ;
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}
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return cfg ;
}
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static int update_odbc ( const char * database , const char * table , const char * keyfield , const char * lookup , va_list ap )
{
odbc_obj * obj ;
SQLHSTMT stmt ;
char sql [ 256 ] ;
SQLLEN rowcount = 0 ;
const char * newparam , * newval ;
int res ;
int x ;
va_list aq ;
va_copy ( aq , ap ) ;
if ( ! table )
return - 1 ;
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obj = fetch_odbc_obj ( database , 0 ) ;
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if ( ! obj )
return - 1 ;
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 - 1 ;
}
newparam = va_arg ( aq , const char * ) ;
if ( ! newparam ) {
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return - 1 ;
}
newval = va_arg ( aq , const char * ) ;
snprintf ( sql , sizeof ( sql ) , " UPDATE %s SET %s=? " , table , newparam ) ;
while ( ( newparam = va_arg ( aq , const char * ) ) ) {
snprintf ( sql + strlen ( sql ) , sizeof ( sql ) - strlen ( sql ) , " , %s=? " , newparam ) ;
newval = va_arg ( aq , const char * ) ;
}
va_end ( aq ) ;
snprintf ( sql + strlen ( sql ) , sizeof ( sql ) - strlen ( sql ) , " WHERE %s=? " , keyfield ) ;
res = SQLPrepare ( stmt , sql , SQL_NTS ) ;
if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Prepare failed![%s] \n " , sql ) ;
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return - 1 ;
}
/* Now bind the parameters */
x = 1 ;
while ( ( newparam = va_arg ( ap , const char * ) ) ) {
newval = va_arg ( ap , const char * ) ;
SQLBindParameter ( stmt , x + + , SQL_PARAM_INPUT , SQL_C_CHAR , SQL_CHAR , strlen ( newval ) , 0 , ( void * ) newval , 0 , NULL ) ;
}
SQLBindParameter ( stmt , x + + , SQL_PARAM_INPUT , SQL_C_CHAR , SQL_CHAR , strlen ( lookup ) , 0 , ( void * ) lookup , 0 , NULL ) ;
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res = odbc_smart_execute ( obj , stmt ) ;
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Execute error! \n [%s] \n \n " , sql ) ;
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return - 1 ;
}
res = SQLRowCount ( stmt , & rowcount ) ;
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL Row Count error! \n [%s] \n \n " , sql ) ;
return - 1 ;
}
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if ( rowcount > = 0 )
return ( int ) rowcount ;
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return - 1 ;
}
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static struct ast_config * config_odbc ( const char * database , const char * table , const char * file , struct ast_config * cfg )
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{
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struct ast_variable * new_v ;
struct ast_category * cur_cat ;
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int res = 0 ;
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odbc_obj * obj ;
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SQLINTEGER err = 0 , commented = 0 , cat_metric = 0 , var_metric = 0 , last_cat_metric = 0 ;
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SQLBIGINT id ;
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char sql [ 255 ] = " " , filename [ 128 ] , category [ 128 ] , var_name [ 128 ] , var_val [ 512 ] ;
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SQLSMALLINT rowcount = 0 ;
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SQLHSTMT stmt ;
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char last [ 128 ] = " " ;
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if ( ! file | | ! strcmp ( file , " res_config_odbc.conf " ) )
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return NULL ; /* cant configure myself with myself ! */
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obj = fetch_odbc_obj ( database , 0 ) ;
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if ( ! obj )
return NULL ;
res = SQLAllocHandle ( SQL_HANDLE_STMT , obj - > con , & stmt ) ;
SQLBindCol ( stmt , 1 , SQL_C_ULONG , & id , sizeof ( id ) , & err ) ;
SQLBindCol ( stmt , 2 , SQL_C_ULONG , & cat_metric , sizeof ( cat_metric ) , & err ) ;
SQLBindCol ( stmt , 3 , SQL_C_ULONG , & var_metric , sizeof ( var_metric ) , & err ) ;
SQLBindCol ( stmt , 4 , SQL_C_ULONG , & commented , sizeof ( commented ) , & err ) ;
SQLBindCol ( stmt , 5 , SQL_C_CHAR , & filename , sizeof ( filename ) , & err ) ;
SQLBindCol ( stmt , 6 , SQL_C_CHAR , & category , sizeof ( category ) , & err ) ;
SQLBindCol ( stmt , 7 , SQL_C_CHAR , & var_name , sizeof ( var_name ) , & err ) ;
SQLBindCol ( stmt , 8 , SQL_C_CHAR , & var_val , sizeof ( var_val ) , & err ) ;
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snprintf ( sql , sizeof ( sql ) , " SELECT * FROM %s WHERE filename='%s' and commented=0 ORDER BY filename,cat_metric desc,var_metric asc,category,var_name,var_val,id " , table , file ) ;
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res = odbc_smart_direct_execute ( obj , stmt , sql ) ;
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
ast_log ( LOG_WARNING , " SQL select error! \n [%s] \n \n " , sql ) ;
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SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
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return NULL ;
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}
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res = SQLNumResultCols ( stmt , & rowcount ) ;
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if ( ( res ! = SQL_SUCCESS ) & & ( res ! = SQL_SUCCESS_WITH_INFO ) ) {
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ast_log ( LOG_WARNING , " SQL NumResultCols error! \n [%s] \n \n " , sql ) ;
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SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
}
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if ( ! rowcount ) {
ast_log ( LOG_NOTICE , " found nothing \n " ) ;
return cfg ;
}
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cur_cat = ast_config_get_current_category ( cfg ) ;
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while ( ( res = SQLFetch ( stmt ) ) ! = SQL_NO_DATA ) {
if ( ! strcmp ( var_name , " #include " ) ) {
if ( ! ast_config_internal_load ( var_val , cfg ) ) {
SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return NULL ;
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}
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continue ;
}
if ( strcmp ( last , category ) | | last_cat_metric ! = cat_metric ) {
cur_cat = ast_category_new ( category ) ;
if ( ! cur_cat ) {
ast_log ( LOG_WARNING , " Out of memory! \n " ) ;
break ;
}
strcpy ( last , category ) ;
last_cat_metric = cat_metric ;
ast_category_append ( cfg , cur_cat ) ;
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}
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new_v = ast_variable_new ( var_name , var_val ) ;
ast_variable_append ( cur_cat , new_v ) ;
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}
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SQLFreeHandle ( SQL_HANDLE_STMT , stmt ) ;
return cfg ;
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}
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static struct ast_config_engine odbc_engine = {
. name = " odbc " ,
. load_func = config_odbc ,
. realtime_func = realtime_odbc ,
. realtime_multi_func = realtime_multi_odbc ,
. update_func = update_odbc
} ;
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int unload_module ( void )
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{
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ast_config_engine_deregister ( & odbc_engine ) ;
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if ( option_verbose )
ast_verbose ( " res_config_odbc unloaded. \n " ) ;
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STANDARD_HANGUP_LOCALUSERS ;
return 0 ;
}
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int load_module ( void )
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{
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ast_config_engine_register ( & odbc_engine ) ;
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if ( option_verbose )
ast_verbose ( " res_config_odbc loaded. \n " ) ;
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return 0 ;
}
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char * description ( void )
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{
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return tdesc ;
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}
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int usecount ( void )
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{
/* never unload a config module */
return 1 ;
}
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char * key ( )
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{
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return ASTERISK_GPL_KEY ;
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}